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Author SHA1 Message Date
Mike Phares
393381d456 Reset 2025-04-04 19:06:29 -07:00
275 changed files with 56094 additions and 2 deletions
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8
.dockerignore Normal file
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@ -0,0 +1,8 @@
.examples
Dockerfile
.github
.idea
.git
web/app
*.db
testdata

41
.examples/docker-compose-grafana-prometheus/README.md Normal file
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## Usage
Gatus exposes Prometheus metrics at `/metrics` if the `metrics` configuration option is set to `true`.
To run this example, all you need to do is execute the following command:
```console
docker-compose up
```
Once you've done the above, you should be able to access the Grafana dashboard at `http://localhost:3000`.
![Gatus Grafana dashboard](../../.github/assets/grafana-dashboard.png)
## Queries
By default, this example has a Grafana dashboard with some panels, but for the sake of verbosity, you'll find
a list of simple queries below. Those make use of the `key` parameter, which is a concatenation of the endpoint's
group and name.
### Success rate
```
sum(rate(gatus_results_total{success="true"}[30s])) by (key) / sum(rate(gatus_results_total[30s])) by (key)
```
### Response time
```
gatus_results_duration_seconds
```
### Total results per minute
```
sum(rate(gatus_results_total[5m])*60) by (key)
```
### Total successful results per minute
```
sum(rate(gatus_results_total{success="true"}[5m])*60) by (key)
```
### Total unsuccessful results per minute
```
sum(rate(gatus_results_total{success="false"}[5m])*60) by (key)
```

42
.examples/docker-compose-grafana-prometheus/docker-compose.yml Normal file
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version: "3.9"
services:
gatus:
container_name: gatus
image: twinproduction/gatus
restart: always
ports:
- "8080:8080"
volumes:
- ./config:/config
networks:
- metrics
prometheus:
container_name: prometheus
image: prom/prometheus:v2.14.0
restart: always
command: --config.file=/etc/prometheus/prometheus.yml
ports:
- "9090:9090"
volumes:
- ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
networks:
- metrics
grafana:
container_name: grafana
image: grafana/grafana:6.4.4
restart: always
environment:
GF_SECURITY_ADMIN_PASSWORD: secret
ports:
- "3000:3000"
volumes:
- ./grafana/grafana.ini/:/etc/grafana/grafana.ini:ro
- ./grafana/provisioning/:/etc/grafana/provisioning/:ro
networks:
- metrics
networks:
metrics:
driver: bridge

85
.examples/docker-compose-grafana-prometheus/grafana/grafana.ini Normal file
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[paths]
[server]
[database]
[session]
[dataproxy]
[analytics]
reporting_enabled = false
[security]
[snapshots]
[dashboards]
[users]
allow_sign_up = false
default_theme = light
[auth]
[auth.anonymous]
enabled = true
org_name = Main Org.
org_role = Admin
[auth.github]
[auth.google]
[auth.generic_oauth]
[auth.grafana_com]
[auth.proxy]
[auth.basic]
[auth.ldap]
[smtp]
[emails]
[log]
mode = console
[log.console]
[log.file]
[log.syslog]
[alerting]
[explore]
[metrics]
enabled = true
[metrics.graphite]
[tracing.jaeger]
[grafana_com]
[external_image_storage]
[external_image_storage.s3]
[external_image_storage.webdav]
[external_image_storage.gcs]
[external_image_storage.azure_blob]
[external_image_storage.local]
[rendering]
[enterprise]

11
.examples/docker-compose-grafana-prometheus/grafana/provisioning/dashboards/dashboard.yml Normal file
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apiVersion: 1
providers:
- name: 'Prometheus'
orgId: 1
folder: ''
type: file
disableDeletion: false
editable: true
options:
path: /etc/grafana/provisioning/dashboards

582
.examples/docker-compose-grafana-prometheus/grafana/provisioning/dashboards/gatus.json Normal file
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{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"name": "Annotations & Alerts",
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": null,
"graphTooltip": 0,
"id": 3,
"links": [],
"panels": [
{
"cacheTimeout": null,
"datasource": null,
"description": "Number of successful results compared to the total number of results during the current interval",
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 0
},
"id": 9,
"links": [],
"options": {
"fieldOptions": {
"calcs": [
"mean"
],
"defaults": {
"mappings": [
{
"id": 0,
"op": "=",
"text": "N/A",
"type": 1,
"value": "null"
}
],
"max": 1,
"min": 0,
"nullValueMode": "connected",
"thresholds": [
{
"color": "red",
"value": null
},
{
"color": "semi-dark-orange",
"value": 0.6
},
{
"color": "yellow",
"value": 0.8
},
{
"color": "dark-green",
"value": 0.95
}
],
"unit": "percentunit"
},
"override": {},
"values": false
},
"orientation": "horizontal",
"showThresholdLabels": false,
"showThresholdMarkers": false
},
"pluginVersion": "6.4.4",
"targets": [
{
"expr": "sum(rate(gatus_results_total{success=\"true\"}[30s])) by (key) / sum(rate(gatus_results_total[30s])) by (key)",
"hide": false,
"legendFormat": "{{key}}",
"refId": "B"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Success rate",
"type": "gauge"
},
{
"aliasColors": {},
"bars": false,
"cacheTimeout": null,
"dashLength": 10,
"dashes": false,
"datasource": null,
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 0
},
"id": 11,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "null as zero",
"options": {
"dataLinks": []
},
"percentage": false,
"pluginVersion": "6.4.4",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "gatus_results_duration_seconds",
"format": "time_series",
"instant": false,
"interval": "",
"intervalFactor": 1,
"legendFormat": "{{key}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Response time",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"cacheTimeout": null,
"dashLength": 10,
"dashes": false,
"datasource": null,
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 0,
"y": 8
},
"id": 10,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"links": [],
"nullPointMode": "connected",
"options": {
"dataLinks": []
},
"percentage": false,
"pluginVersion": "6.4.4",
"pointradius": 2,
"points": true,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "sum(rate(gatus_results_total{success=\"true\"}[30s])) by (key) / sum(rate(gatus_results_total[30s])) by (key)",
"format": "time_series",
"instant": false,
"interval": "",
"intervalFactor": 1,
"legendFormat": "{{key}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Success rate",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"description": "Number of results per minute",
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 8,
"w": 12,
"x": 12,
"y": 8
},
"id": 2,
"interval": "",
"legend": {
"alignAsTable": false,
"avg": false,
"current": false,
"hideEmpty": false,
"hideZero": false,
"max": false,
"min": false,
"rightSide": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "sum(rate(gatus_results_total[5m])*60) by (key)",
"format": "time_series",
"hide": false,
"instant": false,
"interval": "30s",
"intervalFactor": 1,
"legendFormat": "{{key}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Total results per minute",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"decimals": null,
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 7,
"w": 12,
"x": 0,
"y": 16
},
"id": 5,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "sum(rate(gatus_results_total{success=\"true\"}[5m])*60) by (key)",
"instant": false,
"interval": "30s",
"legendFormat": "{{key}}",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Successful results per minute",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"decimals": null,
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": null,
"fill": 1,
"fillGradient": 0,
"gridPos": {
"h": 7,
"w": 12,
"x": 12,
"y": 16
},
"id": 3,
"legend": {
"avg": false,
"current": false,
"max": false,
"min": false,
"show": true,
"total": false,
"values": false
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"dataLinks": []
},
"percentage": false,
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "sum(rate(gatus_results_total{success=\"false\"}[5m])*60) by (key)",
"interval": "30s",
"legendFormat": "{{key}} ",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Unsuccessful results per minute",
"tooltip": {
"shared": true,
"sort": 0,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "short",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
}
],
"refresh": "1m",
"schemaVersion": 20,
"style": "dark",
"tags": [],
"templating": {
"list": []
},
"time": {
"from": "now-1h",
"to": "now"
},
"timepicker": {
"refresh_intervals": [
"5s",
"10s",
"30s",
"1m",
"5m",
"15m",
"30m",
"1h",
"2h",
"1d"
]
},
"timezone": "",
"title": "Gatus",
"uid": "KPI7Qj1Wk",
"version": 2
}

10
.examples/docker-compose-grafana-prometheus/grafana/provisioning/datasources/prometheus.yml Normal file
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apiVersion: 1
datasources:
- name: Prometheus
type: prometheus
access: proxy
url: http://prometheus:9090
isDefault: true
version: 1
editable: false

6
.examples/docker-compose-grafana-prometheus/prometheus/prometheus.yml Normal file
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@ -0,0 +1,6 @@
scrape_configs:
- job_name: gatus
scrape_interval: 10s
static_configs:
- targets:
- gatus:8080

23
.examples/docker-compose-mattermost/docker-compose.yml Normal file
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version: "3.9"
services:
gatus:
container_name: gatus
image: twinproduction/gatus:latest
ports:
- "8080:8080"
volumes:
- ./config:/config
networks:
- default
mattermost:
container_name: mattermost
image: mattermost/mattermost-preview:5.26.0
ports:
- "8065:8065"
networks:
- default
networks:
default:
driver: bridge

29
.examples/docker-compose-mtls/certs/client/client.crt Normal file
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@ -0,0 +1,29 @@
-----BEGIN CERTIFICATE-----
MIIFBjCCAu6gAwIBAgIUHJXHAqywj2v25AgX7pDSZ+LX4iAwDQYJKoZIhvcNAQEL
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MTQ1MDFaMBExDzANBgNVBAMMBmNsaWVudDCCAiIwDQYJKoZIhvcNAQEBBQADggIP
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hSyrAVUspFCIeDN4xsXT5b0j2Ps4bpSAiGx+aDDTPUnd881I6JGCiIavgvdFMLCW
yOXJOZvXcNQwsndkob5fZAEqetjrARsHhQuygEq/LnPc6lWsO8O6UzYArEiKWTMx
N/5hx12Pb7aaQd1f4P3gmmHMb/YiCQK1Qy5d4v68POeqyrLvAHbvCwEMhBAbnLvw
gne3psql8s5wxhnzwYltcBUmmAw1t33CwzRBGEKifRdLGtA9pbua4G/tomcDDjVS
ChsHGebJvNxOnsQqoGgozqM2x8ScxmJzIflGxrKmEA8ybHpU0d02Xp3b
-----END CERTIFICATE-----

51
.examples/docker-compose-mtls/certs/client/client.key Normal file
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@ -0,0 +1,51 @@
-----BEGIN RSA PRIVATE KEY-----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AQKCAgAPwAALUStib3aMkLlfpfve1VGyc8FChcySrBYbKS3zOt2Y27T3DOJuesRE
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jzpXQrAwXNq7pAkIpin0v40lCeTMosSgQLFqMWmtmlCpBVkyEAc9ZYXc3Vs0
-----END RSA PRIVATE KEY-----

29
.examples/docker-compose-mtls/certs/server/ca.crt Normal file
View File

@ -0,0 +1,29 @@
-----BEGIN CERTIFICATE-----
MIIE9DCCAtygAwIBAgIUCXgA3IbeA2mn8DQ0E5IxaKBLtf8wDQYJKoZIhvcNAQEL
BQAwEjEQMA4GA1UEAwwHZXhhbXBsZTAeFw0yNDA0MjUwMTE5MzRaFw0zNDA0MjMw
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ShSKoAkdKxcGG1+MKPt5b7zqvTo8BBPM
-----END CERTIFICATE-----

30
.examples/docker-compose-mtls/certs/server/server.crt Normal file
View File

@ -0,0 +1,30 @@
-----BEGIN CERTIFICATE-----
MIIFDjCCAvagAwIBAgITc5Ejz7RzBJ2/PcUMsVhj41RtQDANBgkqhkiG9w0BAQsF
ADASMRAwDgYDVQQDDAdleGFtcGxlMB4XDTI0MDQyNTAxNDQ1N1oXDTI5MDQyNDAx
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eOk=
-----END CERTIFICATE-----

51
.examples/docker-compose-mtls/certs/server/server.key Normal file
View File

@ -0,0 +1,51 @@
-----BEGIN RSA PRIVATE KEY-----
MIIJKQIBAAKCAgEAoGywZ1awXUZARdl5iYA04kalhT0JXncwq5BxeHolL7RMrSYZ
KaEb9vkokT7IwqN148HIECIEstbB1FfEms5+1ebsf1wUaL4XYVIr8yPCUkWI+qsK
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Elr7p22fx/N04JTX9G6oGdxM7Gh2Uf4i4PnNOi+C3xqLrtUEi/OLof2UHlatypt9
pix0bXJtZE7WfFfesQIxGffVBhgN3UgqhAf2wquHgm1O17JXrmkR6JSYNpKc
-----END RSA PRIVATE KEY-----

27
.examples/docker-compose-mtls/docker-compose.yml Normal file
View File

@ -0,0 +1,27 @@
version: "3.9"
services:
nginx:
image: nginx:stable
volumes:
- ./certs/server:/etc/nginx/certs
- ./nginx:/etc/nginx/conf.d
ports:
- "8443:443"
networks:
- mtls
gatus:
image: twinproduction/gatus:latest
restart: always
ports:
- "8080:8080"
volumes:
- ./config:/config
- ./certs/client:/certs
environment:
- GATUS_CONFIG_PATH=/config
networks:
- mtls
networks:
mtls:

16
.examples/docker-compose-mtls/nginx/default.conf Normal file
View File

@ -0,0 +1,16 @@
server {
listen 443 ssl;
ssl_certificate /etc/nginx/certs/server.crt;
ssl_certificate_key /etc/nginx/certs/server.key;
ssl_client_certificate /etc/nginx/certs/ca.crt;
ssl_verify_client on;
location / {
if ($ssl_client_verify != SUCCESS) {
return 403;
}
root /usr/share/nginx/html;
index index.html index.htm;
}
}

21
.examples/docker-compose-multiple-config-files/config/backend.yaml Normal file
View File

@ -0,0 +1,21 @@
endpoints:
- name: check-if-api-is-healthy
group: backend
url: "https://twin.sh/health"
interval: 5m
conditions:
- "[STATUS] == 200"
- "[BODY].status == UP"
- "[RESPONSE_TIME] < 1000"
- name: check-if-website-is-pingable
url: "icmp://example.org"
interval: 1m
conditions:
- "[CONNECTED] == true"
- name: check-domain-expiration
url: "https://example.org"
interval: 6h
conditions:
- "[DOMAIN_EXPIRATION] > 720h"

8
.examples/docker-compose-multiple-config-files/config/frontend.yaml Normal file
View File

@ -0,0 +1,8 @@
endpoints:
- name: make-sure-html-rendering-works
group: frontend
url: "https://example.org"
interval: 5m
conditions:
- "[STATUS] == 200"
- "[BODY] == pat(*<h1>Example Domain</h1>*)" # Check for header in HTML page

7
.examples/docker-compose-multiple-config-files/config/global.yaml Normal file
View File

@ -0,0 +1,7 @@
metrics: true
ui:
header: Example Company
link: https://example.org
buttons:
- name: "Home"
link: "https://example.org"

10
.examples/docker-compose-multiple-config-files/docker-compose.yml Normal file
View File

@ -0,0 +1,10 @@
version: "3.8"
services:
gatus:
image: twinproduction/gatus:latest
ports:
- "8080:8080"
environment:
- GATUS_CONFIG_PATH=/config
volumes:
- ./config:/config

33
.examples/docker-compose-postgres-storage/docker-compose.yml Normal file
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@ -0,0 +1,33 @@
version: "3.9"
services:
postgres:
image: postgres
volumes:
- ./data/db:/var/lib/postgresql/data
ports:
- "5432:5432"
environment:
- POSTGRES_DB=gatus
- POSTGRES_USER=username
- POSTGRES_PASSWORD=password
networks:
- web
gatus:
image: twinproduction/gatus:latest
restart: always
ports:
- "8080:8080"
environment:
- POSTGRES_USER=username
- POSTGRES_PASSWORD=password
- POSTGRES_DB=gatus
volumes:
- ./config:/config
networks:
- web
depends_on:
- postgres
networks:
web:

0
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9
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version: "3.9"
services:
gatus:
image: twinproduction/gatus:latest
ports:
- "8080:8080"
volumes:
- ./config:/config
- ./data:/data/

8
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version: "3.8"
services:
gatus:
image: twinproduction/gatus:latest
ports:
- 8080:8080
volumes:
- ./config:/config

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FROM twinproduction/gatus
ADD config.yaml ./config/config.yaml

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apiVersion: v1
kind: ConfigMap
metadata:
name: gatus
namespace: kube-system
data:
config.yaml: |
metrics: true
endpoints:
- name: website
url: https://twin.sh/health
interval: 5m
conditions:
- "[STATUS] == 200"
- "[BODY].status == UP"
- name: github
url: https://api.github.com/healthz
interval: 5m
conditions:
- "[STATUS] == 200"
- name: cat-fact
url: "https://cat-fact.herokuapp.com/facts/random"
interval: 5m
conditions:
- "[STATUS] == 200"
- "[BODY].deleted == false"
- "len([BODY].text) > 0"
- "[BODY].text == pat(*cat*)"
- "[STATUS] == pat(2*)"
- "[CONNECTED] == true"
- name: example
url: https://example.com/
conditions:
- "[STATUS] == 200"
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: gatus
namespace: kube-system
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: gatus
namespace: kube-system
spec:
replicas: 1
selector:
matchLabels:
app: gatus
template:
metadata:
name: gatus
namespace: kube-system
labels:
app: gatus
spec:
serviceAccountName: gatus
terminationGracePeriodSeconds: 5
containers:
- image: twinproduction/gatus
imagePullPolicy: IfNotPresent
name: gatus
ports:
- containerPort: 8080
name: http
protocol: TCP
resources:
limits:
cpu: 250m
memory: 100M
requests:
cpu: 50m
memory: 30M
readinessProbe:
httpGet:
path: /health
port: 8080
initialDelaySeconds: 5
periodSeconds: 10
successThreshold: 1
failureThreshold: 3
livenessProbe:
httpGet:
path: /health
port: 8080
initialDelaySeconds: 10
periodSeconds: 10
successThreshold: 1
failureThreshold: 5
volumeMounts:
- mountPath: /config
name: gatus-config
volumes:
- configMap:
name: gatus
name: gatus-config
---
apiVersion: v1
kind: Service
metadata:
name: gatus
namespace: kube-system
spec:
ports:
- name: http
port: 8080
protocol: TCP
targetPort: 8080
selector:
app: gatus

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* text=auto eol=lf

1
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github: [TwiN]

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<mxfile host="app.diagrams.net" modified="2022-12-07T04:00:31.242Z" agent="5.0 (Windows)" etag="4-CttOJPoGYGt_6RMEMf" version="20.5.3" type="device"><diagram id="oCf8YAkR0GE5Fy88uv5t" name="Page-1">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</diagram></mxfile>

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12
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ignore:
- "watchdog/watchdog.go"
- "storage/store/sql/specific_postgres.go" # Can't test for postgres
comment: false
coverage:
status:
patch: off
project:
default:
target: 75%
threshold: null

13
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version: 2
updates:
- package-ecosystem: "github-actions"
directory: "/"
labels: ["dependencies"]
schedule:
interval: "daily"
- package-ecosystem: "gomod"
directory: "/"
open-pull-requests-limit: 3
labels: ["dependencies"]
schedule:
interval: "daily"

30
.github/workflows/benchmark.yml vendored Normal file
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name: benchmark
on:
workflow_run:
workflows: [publish-latest]
branches: [master]
types: [completed]
workflow_dispatch:
inputs:
repository:
description: "Repository to checkout. Useful for benchmarking a fork. Format should be <owner>/<repository>."
required: true
default: "TwiN/gatus"
ref:
description: "Branch, tag or SHA to checkout"
required: true
default: "master"
jobs:
build:
name: benchmark
runs-on: ubuntu-latest
timeout-minutes: 5
steps:
- uses: actions/setup-go@v5
with:
go-version: 1.23.3
repository: "${{ github.event.inputs.repository || 'TwiN/gatus' }}"
ref: "${{ github.event.inputs.ref || 'master' }}"
- uses: actions/checkout@v4
- name: Benchmark
run: go test -bench=. ./storage/store

42
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name: labeler
on:
pull_request_target:
types:
- opened
issues:
types:
- opened
jobs:
labeler:
runs-on: ubuntu-latest
timeout-minutes: 5
permissions:
issues: write
pull-requests: write
steps:
- name: Label
continue-on-error: true
env:
TITLE: ${{ github.event.issue.title }}${{ github.event.pull_request.title }}
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
GH_REPO: ${{ github.repository }}
NUMBER: ${{ github.event.issue.number }}${{ github.event.pull_request.number }}
run: |
if [[ $TITLE == *"feat:"* || $TITLE == *"feat("* ]]; then
gh issue edit "$NUMBER" --add-label "feature"
elif [[ $TITLE == *"fix:"* || $TITLE == *"fix("* ]]; then
gh issue edit "$NUMBER" --add-label "bug"
fi
if [[ $TITLE == *"alerting"* || $TITLE == *"provider"* || $TITLE == *"alert"* ]]; then
gh issue edit "$NUMBER" --add-label "area/alerting"
fi
if [[ $TITLE == *"storage"* || $TITLE == *"postgres"* || $TITLE == *"sqlite"* ]]; then
gh issue edit "$NUMBER" --add-label "area/storage"
fi
if [[ $TITLE == *"security"* || $TITLE == *"oidc"* || $TITLE == *"oauth2"* ]]; then
gh issue edit "$NUMBER" --add-label "area/security"
fi
if [[ $TITLE == *"metric"* || $TITLE == *"prometheus"* ]]; then
gh issue edit "$NUMBER" --add-label "area/metrics"
fi

39
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name: publish-custom
run-name: "${{ inputs.tag }}"
on:
workflow_dispatch:
inputs:
tag:
description: Custom tag to publish
jobs:
publish-custom:
runs-on: ubuntu-latest
timeout-minutes: 20
steps:
- uses: actions/checkout@v4
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Get image repository
run: echo IMAGE_REPOSITORY=$(echo ${{ secrets.DOCKER_USERNAME }}/${{ github.event.repository.name }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
- name: Login to Docker Registry
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
- name: Docker meta
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.IMAGE_REPOSITORY }}
tags: |
type=raw,value=${{ inputs.tag }}
- name: Build and push Docker image
uses: docker/build-push-action@v6
with:
platforms: linux/amd64
pull: true
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}

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name: publish-experimental
on: [workflow_dispatch]
jobs:
publish-experimental:
runs-on: ubuntu-latest
timeout-minutes: 20
steps:
- uses: actions/checkout@v4
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Get image repository
run: echo IMAGE_REPOSITORY=$(echo ${{ secrets.DOCKER_USERNAME }}/${{ github.event.repository.name }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
- name: Login to Docker Registry
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
- name: Docker meta
id: meta
uses: docker/metadata-action@v5
with:
images: ${{ env.IMAGE_REPOSITORY }}
tags: |
type=raw,value=experimental
- name: Build and push Docker image
uses: docker/build-push-action@v6
with:
platforms: linux/amd64
pull: true
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}

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name: publish-latest
on:
workflow_run:
workflows: [test]
branches: [master]
types: [completed]
concurrency:
group: ${{ github.event.workflow_run.head_repository.full_name }}::${{ github.event.workflow_run.head_branch }}::${{ github.workflow }}
cancel-in-progress: true
jobs:
publish-latest:
runs-on: ubuntu-latest
if: ${{ (github.event.workflow_run.conclusion == 'success') && (github.event.workflow_run.head_repository.full_name == github.repository) }}
timeout-minutes: 90
steps:
- uses: actions/checkout@v4
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Get image repository
run: |
echo DOCKER_IMAGE_REPOSITORY=$(echo ${{ secrets.DOCKER_USERNAME }}/${{ github.event.repository.name }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
echo GHCR_IMAGE_REPOSITORY=$(echo ghcr.io/${{ github.actor }}/${{ github.event.repository.name }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
- name: Login to Docker Registry
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
- name: Login to GitHub Container Registry
uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Docker meta
id: meta
uses: docker/metadata-action@v5
with:
images: |
${{ env.DOCKER_IMAGE_REPOSITORY }}
${{ env.GHCR_IMAGE_REPOSITORY }}
tags: |
type=raw,value=latest
- name: Build and push Docker image
uses: docker/build-push-action@v6
with:
platforms: linux/amd64,linux/arm/v7,linux/arm64
pull: true
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}

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name: publish-release
on:
release:
types: [published]
jobs:
publish-release:
name: publish-release
runs-on: ubuntu-latest
timeout-minutes: 60
steps:
- uses: actions/checkout@v4
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Get image repository
run: |
echo DOCKER_IMAGE_REPOSITORY=$(echo ${{ secrets.DOCKER_USERNAME }}/${{ github.event.repository.name }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
echo GHCR_IMAGE_REPOSITORY=$(echo ghcr.io/${{ github.actor }}/${{ github.event.repository.name }} | tr '[:upper:]' '[:lower:]') >> $GITHUB_ENV
- name: Get the release
run: echo RELEASE=${GITHUB_REF/refs\/tags\//} >> $GITHUB_ENV
- name: Login to Docker Registry
uses: docker/login-action@v3
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
- name: Login to GitHub Container Registry
uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Docker meta
id: meta
uses: docker/metadata-action@v5
with:
images: |
${{ env.DOCKER_IMAGE_REPOSITORY }}
${{ env.GHCR_IMAGE_REPOSITORY }}
tags: |
type=raw,value=${{ env.RELEASE }}
type=raw,value=stable
type=raw,value=latest
- name: Build and push Docker image
uses: docker/build-push-action@v6
with:
platforms: linux/amd64,linux/arm/v7,linux/arm64
pull: true
push: true
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}

18
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name: test-ui
on:
pull_request:
paths:
- 'web/**'
push:
branches:
- master
paths:
- 'web/**'
jobs:
test-ui:
runs-on: ubuntu-latest
timeout-minutes: 10
steps:
- uses: actions/checkout@v4
- run: make frontend-install-dependencies
- run: make frontend-build

34
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name: test
on:
pull_request:
paths-ignore:
- '*.md'
- '.examples/**'
push:
branches:
- master
paths-ignore:
- '*.md'
- '.github/**'
- '.examples/**'
jobs:
test:
runs-on: ubuntu-latest
timeout-minutes: 10
steps:
- uses: actions/setup-go@v5
with:
go-version: 1.23.3
- uses: actions/checkout@v4
- name: Build binary to make sure it works
run: go build
- name: Test
# We're using "sudo" because one of the tests leverages ping, which requires super-user privileges.
# As for the 'env "PATH=$PATH" "GOROOT=$GOROOT"', we need it to use the same "go" executable that
# was configured by the "Set up Go" step (otherwise, it'd use sudo's "go" executable)
run: sudo env "PATH=$PATH" "GOROOT=$GOROOT" go test ./... -race -coverprofile=coverage.txt -covermode=atomic
- name: Codecov
uses: codecov/codecov-action@v5.4.0
with:
files: ./coverage.txt
token: ${{ secrets.CODECOV_TOKEN }}

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.gitignore vendored Normal file
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# IDE
*.iml
.idea
.vscode
# OS
.DS_Store
# JS
node_modules
# Go
/vendor
# Misc
*.db
*.db-shm
*.db-wal
gatus
config/config.yml
config.yaml
gatus.exe
.IFXApps

22
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# Build the go application into a binary
FROM golang:alpine AS builder
RUN apk --update add ca-certificates
WORKDIR /app
COPY . ./
RUN go mod tidy
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o gatus .
# Run Tests inside docker image if you don't have a configured go environment
#RUN apk update && apk add --virtual build-dependencies build-base gcc
#RUN go test ./... -mod vendor
# Run the binary on an empty container
FROM scratch
COPY --from=builder /app/gatus .
COPY --from=builder /app/config.yaml ./config/config.yaml
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
ENV GATUS_CONFIG_PATH=""
ENV GATUS_LOG_LEVEL="INFO"
ENV PORT="8080"
EXPOSE ${PORT}
ENTRYPOINT ["/gatus"]

1
LICENSE
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@ -199,3 +199,4 @@
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

48
Makefile Normal file
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@ -0,0 +1,48 @@
BINARY=gatus
.PHONY: install
install:
go build -v -o $(BINARY) .
.PHONY: run
run:
ENVIRONMENT=dev GATUS_CONFIG_PATH=./config.yaml go run main.go
.PHONY: run-binary
run-binary:
ENVIRONMENT=dev GATUS_CONFIG_PATH=./config.yaml ./$(BINARY)
.PHONY: clean
clean:
rm $(BINARY)
.PHONY: test
test:
go test ./... -cover
##########
# Docker #
##########
docker-build:
docker build -t twinproduction/gatus:latest .
docker-run:
docker run -p 8080:8080 --name gatus twinproduction/gatus:latest
docker-build-and-run: docker-build docker-run
#############
# Front end #
#############
frontend-install-dependencies:
npm --prefix web/app install
frontend-build:
npm --prefix web/app run build
frontend-run:
npm --prefix web/app run serve

2523
README.md
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128
alerting/alert/alert.go Normal file
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package alert
import (
"crypto/sha256"
"encoding/hex"
"errors"
"strconv"
"strings"
"github.com/TwiN/logr"
"gopkg.in/yaml.v3"
)
var (
// ErrAlertWithInvalidDescription is the error with which Gatus will panic if an alert has an invalid character
ErrAlertWithInvalidDescription = errors.New("alert description must not have \" or \\")
)
// Alert is endpoint.Endpoint's alert configuration
type Alert struct {
// Type of alert (required)
Type Type `yaml:"type"`
// Enabled defines whether the alert is enabled
//
// Use Alert.IsEnabled() to retrieve the value of this field.
//
// This is a pointer, because it is populated by YAML and we need to know whether it was explicitly set to a value
// or not for provider.ParseWithDefaultAlert to work.
Enabled *bool `yaml:"enabled,omitempty"`
// FailureThreshold is the number of failures in a row needed before triggering the alert
FailureThreshold int `yaml:"failure-threshold"`
// SuccessThreshold defines how many successful executions must happen in a row before an ongoing incident is marked as resolved
SuccessThreshold int `yaml:"success-threshold"`
// Description of the alert. Will be included in the alert sent.
//
// This is a pointer, because it is populated by YAML and we need to know whether it was explicitly set to a value
// or not for provider.ParseWithDefaultAlert to work.
Description *string `yaml:"description,omitempty"`
// SendOnResolved defines whether to send a second notification when the issue has been resolved
//
// This is a pointer, because it is populated by YAML and we need to know whether it was explicitly set to a value
// or not for provider.ParseWithDefaultAlert to work. Use Alert.IsSendingOnResolved() for a non-pointer
SendOnResolved *bool `yaml:"send-on-resolved,omitempty"`
// ProviderOverride is an optional field that can be used to override the provider's configuration
// It is freeform so that it can be used for any provider-specific configuration.
ProviderOverride map[string]any `yaml:"provider-override,omitempty"`
// ResolveKey is an optional field that is used by some providers (i.e. PagerDuty's dedup_key) to resolve
// ongoing/triggered incidents
ResolveKey string `yaml:"-"`
// Triggered is used to determine whether an alert has been triggered. When an alert is resolved, this value
// should be set back to false. It is used to prevent the same alert from going out twice.
//
// This value should only be modified if the provider.AlertProvider's Send function does not return an error for an
// alert that hasn't been triggered yet. This doubles as a lazy retry. The reason why this behavior isn't also
// applied for alerts that are already triggered and has become "healthy" again is to prevent a case where, for
// some reason, the alert provider always returns errors when trying to send the resolved notification
// (SendOnResolved).
Triggered bool `yaml:"-"`
}
// ValidateAndSetDefaults validates the alert's configuration and sets the default value of fields that have one
func (alert *Alert) ValidateAndSetDefaults() error {
if alert.FailureThreshold <= 0 {
alert.FailureThreshold = 3
}
if alert.SuccessThreshold <= 0 {
alert.SuccessThreshold = 2
}
if strings.ContainsAny(alert.GetDescription(), "\"\\") {
return ErrAlertWithInvalidDescription
}
return nil
}
// GetDescription retrieves the description of the alert
func (alert *Alert) GetDescription() string {
if alert.Description == nil {
return ""
}
return *alert.Description
}
// IsEnabled returns whether an alert is enabled or not
// Returns true if not set
func (alert *Alert) IsEnabled() bool {
if alert.Enabled == nil {
return true
}
return *alert.Enabled
}
// IsSendingOnResolved returns whether an alert is sending on resolve or not
func (alert *Alert) IsSendingOnResolved() bool {
if alert.SendOnResolved == nil {
return false
}
return *alert.SendOnResolved
}
// Checksum returns a checksum of the alert
// Used to determine which persisted triggered alert should be deleted on application start
func (alert *Alert) Checksum() string {
hash := sha256.New()
hash.Write([]byte(string(alert.Type) + "_" +
strconv.FormatBool(alert.IsEnabled()) + "_" +
strconv.FormatBool(alert.IsSendingOnResolved()) + "_" +
strconv.Itoa(alert.SuccessThreshold) + "_" +
strconv.Itoa(alert.FailureThreshold) + "_" +
alert.GetDescription()),
)
return hex.EncodeToString(hash.Sum(nil))
}
func (alert *Alert) ProviderOverrideAsBytes() []byte {
yamlBytes, err := yaml.Marshal(alert.ProviderOverride)
if err != nil {
logr.Warnf("[alert.ProviderOverrideAsBytes] Failed to marshal alert override of type=%s as bytes: %v", alert.Type, err)
}
return yamlBytes
}

192
alerting/alert/alert_test.go Normal file
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package alert
import (
"errors"
"testing"
)
func TestAlert_ValidateAndSetDefaults(t *testing.T) {
invalidDescription := "\""
scenarios := []struct {
name string
alert Alert
expectedError error
expectedSuccessThreshold int
expectedFailureThreshold int
}{
{
name: "valid-empty",
alert: Alert{
Description: nil,
FailureThreshold: 0,
SuccessThreshold: 0,
},
expectedError: nil,
expectedFailureThreshold: 3,
expectedSuccessThreshold: 2,
},
{
name: "invalid-description",
alert: Alert{
Description: &invalidDescription,
FailureThreshold: 10,
SuccessThreshold: 5,
},
expectedError: ErrAlertWithInvalidDescription,
expectedFailureThreshold: 10,
expectedSuccessThreshold: 5,
},
}
for _, scenario := range scenarios {
t.Run(scenario.name, func(t *testing.T) {
if err := scenario.alert.ValidateAndSetDefaults(); !errors.Is(err, scenario.expectedError) {
t.Errorf("expected error %v, got %v", scenario.expectedError, err)
}
if scenario.alert.SuccessThreshold != scenario.expectedSuccessThreshold {
t.Errorf("expected success threshold %v, got %v", scenario.expectedSuccessThreshold, scenario.alert.SuccessThreshold)
}
if scenario.alert.FailureThreshold != scenario.expectedFailureThreshold {
t.Errorf("expected failure threshold %v, got %v", scenario.expectedFailureThreshold, scenario.alert.FailureThreshold)
}
})
}
}
func TestAlert_IsEnabled(t *testing.T) {
if !(&Alert{Enabled: nil}).IsEnabled() {
t.Error("alert.IsEnabled() should've returned true, because Enabled was set to nil")
}
if value := false; (&Alert{Enabled: &value}).IsEnabled() {
t.Error("alert.IsEnabled() should've returned false, because Enabled was set to false")
}
if value := true; !(&Alert{Enabled: &value}).IsEnabled() {
t.Error("alert.IsEnabled() should've returned true, because Enabled was set to true")
}
}
func TestAlert_GetDescription(t *testing.T) {
if (&Alert{Description: nil}).GetDescription() != "" {
t.Error("alert.GetDescription() should've returned an empty string, because Description was set to nil")
}
if value := "description"; (&Alert{Description: &value}).GetDescription() != value {
t.Error("alert.GetDescription() should've returned false, because Description was set to 'description'")
}
}
func TestAlert_IsSendingOnResolved(t *testing.T) {
if (&Alert{SendOnResolved: nil}).IsSendingOnResolved() {
t.Error("alert.IsSendingOnResolved() should've returned false, because SendOnResolved was set to nil")
}
if value := false; (&Alert{SendOnResolved: &value}).IsSendingOnResolved() {
t.Error("alert.IsSendingOnResolved() should've returned false, because SendOnResolved was set to false")
}
if value := true; !(&Alert{SendOnResolved: &value}).IsSendingOnResolved() {
t.Error("alert.IsSendingOnResolved() should've returned true, because SendOnResolved was set to true")
}
}
func TestAlert_Checksum(t *testing.T) {
description1, description2 := "a", "b"
yes, no := true, false
scenarios := []struct {
name string
alert Alert
expected string
}{
{
name: "barebone",
alert: Alert{
Type: TypeDiscord,
},
expected: "fed0580e44ed5701dbba73afa1f14b2c53ca5a7b8067a860441c212916057fe3",
},
{
name: "with-description-1",
alert: Alert{
Type: TypeDiscord,
Description: &description1,
},
expected: "005f407ebe506e74a4aeb46f74c28b376debead7011e1b085da3840f72ba9707",
},
{
name: "with-description-2",
alert: Alert{
Type: TypeDiscord,
Description: &description2,
},
expected: "3c2c4a9570cdc614006993c21f79a860a7f5afea10cf70d1a79d3c49342ef2c8",
},
{
name: "with-description-2-and-enabled-false",
alert: Alert{
Type: TypeDiscord,
Enabled: &no,
Description: &description2,
},
expected: "837945c2b4cd5e961db3e63e10c348d4f1c3446ba68cf5a48e35a1ae22cf0c22",
},
{
name: "with-description-2-and-enabled-true",
alert: Alert{
Type: TypeDiscord,
Enabled: &yes, // it defaults to true if not set, but just to make sure
Description: &description2,
},
expected: "3c2c4a9570cdc614006993c21f79a860a7f5afea10cf70d1a79d3c49342ef2c8",
},
{
name: "with-description-2-and-enabled-true-and-send-on-resolved-true",
alert: Alert{
Type: TypeDiscord,
Enabled: &yes,
SendOnResolved: &yes,
Description: &description2,
},
expected: "bf1436995a880eb4a352c74c5dfee1f1b5ff6b9fc55aef9bf411b3631adfd80c",
},
{
name: "with-description-2-and-failure-threshold-7",
alert: Alert{
Type: TypeSlack,
FailureThreshold: 7,
Description: &description2,
},
expected: "8bd479e18bda393d4c924f5a0d962e825002168dedaa88b445e435db7bacffd3",
},
{
name: "with-description-2-and-failure-threshold-9",
alert: Alert{
Type: TypeSlack,
FailureThreshold: 9,
Description: &description2,
},
expected: "5abdfce5236e344996d264d526e769c07cb0d3d329a999769a1ff84b157ca6f1",
},
{
name: "with-description-2-and-success-threshold-5",
alert: Alert{
Type: TypeSlack,
SuccessThreshold: 7,
Description: &description2,
},
expected: "c0000e73626b80e212cfc24830de7094568f648e37f3e16f9e68c7f8ef75c34c",
},
{
name: "with-description-2-and-success-threshold-1",
alert: Alert{
Type: TypeSlack,
SuccessThreshold: 1,
Description: &description2,
},
expected: "5c28963b3a76104cfa4a0d79c89dd29ec596c8cfa4b1af210ec83d6d41587b5f",
},
}
for _, scenario := range scenarios {
t.Run(scenario.name, func(t *testing.T) {
scenario.alert.ValidateAndSetDefaults()
if checksum := scenario.alert.Checksum(); checksum != scenario.expected {
t.Errorf("expected checksum %v, got %v", scenario.expected, checksum)
}
})
}
}

79
alerting/alert/type.go Normal file
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package alert
// Type is the type of the alert.
// The value will generally be the name of the alert provider
type Type string
const (
// TypeAWSSES is the Type for the awsses alerting provider
TypeAWSSES Type = "aws-ses"
// TypeCustom is the Type for the custom alerting provider
TypeCustom Type = "custom"
// TypeDiscord is the Type for the discord alerting provider
TypeDiscord Type = "discord"
// TypeEmail is the Type for the email alerting provider
TypeEmail Type = "email"
// TypeGitHub is the Type for the github alerting provider
TypeGitHub Type = "github"
// TypeGitLab is the Type for the gitlab alerting provider
TypeGitLab Type = "gitlab"
// TypeGitea is the Type for the gitea alerting provider
TypeGitea Type = "gitea"
// TypeGoogleChat is the Type for the googlechat alerting provider
TypeGoogleChat Type = "googlechat"
// TypeGotify is the Type for the gotify alerting provider
TypeGotify Type = "gotify"
// TypeIncidentIO is the Type for the incident-io alerting provider
TypeIncidentIO Type = "incident-io"
// TypeJetBrainsSpace is the Type for the jetbrains alerting provider
TypeJetBrainsSpace Type = "jetbrainsspace"
// TypeMatrix is the Type for the matrix alerting provider
TypeMatrix Type = "matrix"
// TypeMattermost is the Type for the mattermost alerting provider
TypeMattermost Type = "mattermost"
// TypeMessagebird is the Type for the messagebird alerting provider
TypeMessagebird Type = "messagebird"
// TypeNtfy is the Type for the ntfy alerting provider
TypeNtfy Type = "ntfy"
// TypeOpsgenie is the Type for the opsgenie alerting provider
TypeOpsgenie Type = "opsgenie"
// TypePagerDuty is the Type for the pagerduty alerting provider
TypePagerDuty Type = "pagerduty"
// TypePushover is the Type for the pushover alerting provider
TypePushover Type = "pushover"
// TypeSlack is the Type for the slack alerting provider
TypeSlack Type = "slack"
// TypeTeams is the Type for the teams alerting provider
TypeTeams Type = "teams"
// TypeTeamsWorkflows is the Type for the teams-workflows alerting provider
TypeTeamsWorkflows Type = "teams-workflows"
// TypeTelegram is the Type for the telegram alerting provider
TypeTelegram Type = "telegram"
// TypeTwilio is the Type for the twilio alerting provider
TypeTwilio Type = "twilio"
// TypeZulip is the Type for the Zulip alerting provider
TypeZulip Type = "zulip"
)

139
alerting/config.go Normal file
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package alerting
import (
"reflect"
"strings"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/alerting/provider"
"github.com/TwiN/gatus/v5/alerting/provider/awsses"
"github.com/TwiN/gatus/v5/alerting/provider/custom"
"github.com/TwiN/gatus/v5/alerting/provider/discord"
"github.com/TwiN/gatus/v5/alerting/provider/email"
"github.com/TwiN/gatus/v5/alerting/provider/gitea"
"github.com/TwiN/gatus/v5/alerting/provider/github"
"github.com/TwiN/gatus/v5/alerting/provider/gitlab"
"github.com/TwiN/gatus/v5/alerting/provider/googlechat"
"github.com/TwiN/gatus/v5/alerting/provider/gotify"
"github.com/TwiN/gatus/v5/alerting/provider/incidentio"
"github.com/TwiN/gatus/v5/alerting/provider/jetbrainsspace"
"github.com/TwiN/gatus/v5/alerting/provider/matrix"
"github.com/TwiN/gatus/v5/alerting/provider/mattermost"
"github.com/TwiN/gatus/v5/alerting/provider/messagebird"
"github.com/TwiN/gatus/v5/alerting/provider/ntfy"
"github.com/TwiN/gatus/v5/alerting/provider/opsgenie"
"github.com/TwiN/gatus/v5/alerting/provider/pagerduty"
"github.com/TwiN/gatus/v5/alerting/provider/pushover"
"github.com/TwiN/gatus/v5/alerting/provider/slack"
"github.com/TwiN/gatus/v5/alerting/provider/teams"
"github.com/TwiN/gatus/v5/alerting/provider/teamsworkflows"
"github.com/TwiN/gatus/v5/alerting/provider/telegram"
"github.com/TwiN/gatus/v5/alerting/provider/twilio"
"github.com/TwiN/gatus/v5/alerting/provider/zulip"
"github.com/TwiN/logr"
)
// Config is the configuration for alerting providers
type Config struct {
// AWSSimpleEmailService is the configuration for the aws-ses alerting provider
AWSSimpleEmailService *awsses.AlertProvider `yaml:"aws-ses,omitempty"`
// Custom is the configuration for the custom alerting provider
Custom *custom.AlertProvider `yaml:"custom,omitempty"`
// Discord is the configuration for the discord alerting provider
Discord *discord.AlertProvider `yaml:"discord,omitempty"`
// Email is the configuration for the email alerting provider
Email *email.AlertProvider `yaml:"email,omitempty"`
// GitHub is the configuration for the github alerting provider
GitHub *github.AlertProvider `yaml:"github,omitempty"`
// GitLab is the configuration for the gitlab alerting provider
GitLab *gitlab.AlertProvider `yaml:"gitlab,omitempty"`
// Gitea is the configuration for the gitea alerting provider
Gitea *gitea.AlertProvider `yaml:"gitea,omitempty"`
// GoogleChat is the configuration for the googlechat alerting provider
GoogleChat *googlechat.AlertProvider `yaml:"googlechat,omitempty"`
// Gotify is the configuration for the gotify alerting provider
Gotify *gotify.AlertProvider `yaml:"gotify,omitempty"`
// IncidentIO is the configuration for the incident-io alerting provider
IncidentIO *incidentio.AlertProvider `yaml:"incident-io,omitempty"`
// JetBrainsSpace is the configuration for the jetbrains space alerting provider
JetBrainsSpace *jetbrainsspace.AlertProvider `yaml:"jetbrainsspace,omitempty"`
// Matrix is the configuration for the matrix alerting provider
Matrix *matrix.AlertProvider `yaml:"matrix,omitempty"`
// Mattermost is the configuration for the mattermost alerting provider
Mattermost *mattermost.AlertProvider `yaml:"mattermost,omitempty"`
// Messagebird is the configuration for the messagebird alerting provider
Messagebird *messagebird.AlertProvider `yaml:"messagebird,omitempty"`
// Ntfy is the configuration for the ntfy alerting provider
Ntfy *ntfy.AlertProvider `yaml:"ntfy,omitempty"`
// Opsgenie is the configuration for the opsgenie alerting provider
Opsgenie *opsgenie.AlertProvider `yaml:"opsgenie,omitempty"`
// PagerDuty is the configuration for the pagerduty alerting provider
PagerDuty *pagerduty.AlertProvider `yaml:"pagerduty,omitempty"`
// Pushover is the configuration for the pushover alerting provider
Pushover *pushover.AlertProvider `yaml:"pushover,omitempty"`
// Slack is the configuration for the slack alerting provider
Slack *slack.AlertProvider `yaml:"slack,omitempty"`
// Teams is the configuration for the teams alerting provider
Teams *teams.AlertProvider `yaml:"teams,omitempty"`
// TeamsWorkflows is the configuration for the teams alerting provider using the new Workflow App Webhook Connector
TeamsWorkflows *teamsworkflows.AlertProvider `yaml:"teams-workflows,omitempty"`
// Telegram is the configuration for the telegram alerting provider
Telegram *telegram.AlertProvider `yaml:"telegram,omitempty"`
// Twilio is the configuration for the twilio alerting provider
Twilio *twilio.AlertProvider `yaml:"twilio,omitempty"`
// Zulip is the configuration for the zulip alerting provider
Zulip *zulip.AlertProvider `yaml:"zulip,omitempty"`
}
// GetAlertingProviderByAlertType returns an provider.AlertProvider by its corresponding alert.Type
func (config *Config) GetAlertingProviderByAlertType(alertType alert.Type) provider.AlertProvider {
entityType := reflect.TypeOf(config).Elem()
for i := 0; i < entityType.NumField(); i++ {
field := entityType.Field(i)
tag := strings.Split(field.Tag.Get("yaml"), ",")[0]
if tag == string(alertType) {
fieldValue := reflect.ValueOf(config).Elem().Field(i)
if fieldValue.IsNil() {
return nil
}
return fieldValue.Interface().(provider.AlertProvider)
}
}
logr.Infof("[alerting.GetAlertingProviderByAlertType] No alerting provider found for alert type %s", alertType)
return nil
}
// SetAlertingProviderToNil Sets an alerting provider to nil to avoid having to revalidate it every time an
// alert of its corresponding type is sent.
func (config *Config) SetAlertingProviderToNil(p provider.AlertProvider) {
entityType := reflect.TypeOf(config).Elem()
for i := 0; i < entityType.NumField(); i++ {
field := entityType.Field(i)
if field.Type == reflect.TypeOf(p) {
reflect.ValueOf(config).Elem().Field(i).Set(reflect.Zero(field.Type))
}
}
}

228
alerting/provider/awsses/awsses.go Normal file
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package awsses
import (
"errors"
"fmt"
"strings"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/logr"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ses"
"gopkg.in/yaml.v3"
)
const (
CharSet = "UTF-8"
)
var (
ErrDuplicateGroupOverride = errors.New("duplicate group override")
ErrMissingFromOrToFields = errors.New("from and to fields are required")
ErrInvalidAWSAuthConfig = errors.New("either both or neither of access-key-id and secret-access-key must be specified")
)
type Config struct {
AccessKeyID string `yaml:"access-key-id"`
SecretAccessKey string `yaml:"secret-access-key"`
Region string `yaml:"region"`
From string `yaml:"from"`
To string `yaml:"to"`
}
func (cfg *Config) Validate() error {
if len(cfg.From) == 0 || len(cfg.To) == 0 {
return ErrMissingFromOrToFields
}
if !((len(cfg.AccessKeyID) == 0 && len(cfg.SecretAccessKey) == 0) || (len(cfg.AccessKeyID) > 0 && len(cfg.SecretAccessKey) > 0)) {
// if both AccessKeyID and SecretAccessKey are specified, we'll use these to authenticate,
// otherwise if neither are specified, then we'll fall back on IAM authentication.
return ErrInvalidAWSAuthConfig
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.AccessKeyID) > 0 {
cfg.AccessKeyID = override.AccessKeyID
}
if len(override.SecretAccessKey) > 0 {
cfg.SecretAccessKey = override.SecretAccessKey
}
if len(override.Region) > 0 {
cfg.Region = override.Region
}
if len(override.From) > 0 {
cfg.From = override.From
}
if len(override.To) > 0 {
cfg.To = override.To
}
}
// AlertProvider is the configuration necessary for sending an alert using AWS Simple Email Service
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" || len(override.To) == 0 {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
awsSession, err := provider.createSession(cfg)
if err != nil {
return err
}
svc := ses.New(awsSession)
subject, body := provider.buildMessageSubjectAndBody(ep, alert, result, resolved)
emails := strings.Split(cfg.To, ",")
input := &ses.SendEmailInput{
Destination: &ses.Destination{
ToAddresses: aws.StringSlice(emails),
},
Message: &ses.Message{
Body: &ses.Body{
Text: &ses.Content{
Charset: aws.String(CharSet),
Data: aws.String(body),
},
},
Subject: &ses.Content{
Charset: aws.String(CharSet),
Data: aws.String(subject),
},
},
Source: aws.String(cfg.From),
}
if _, err = svc.SendEmail(input); err != nil {
if aerr, ok := err.(awserr.Error); ok {
switch aerr.Code() {
case ses.ErrCodeMessageRejected:
logr.Error(ses.ErrCodeMessageRejected + ": " + aerr.Error())
case ses.ErrCodeMailFromDomainNotVerifiedException:
logr.Error(ses.ErrCodeMailFromDomainNotVerifiedException + ": " + aerr.Error())
case ses.ErrCodeConfigurationSetDoesNotExistException:
logr.Error(ses.ErrCodeConfigurationSetDoesNotExistException + ": " + aerr.Error())
default:
logr.Error(aerr.Error())
}
} else {
// Print the error, cast err to awserr.Error to get the Code and
// Message from an error.
logr.Error(err.Error())
}
return err
}
return nil
}
func (provider *AlertProvider) createSession(cfg *Config) (*session.Session, error) {
awsConfig := &aws.Config{
Region: aws.String(cfg.Region),
}
if len(cfg.AccessKeyID) > 0 && len(cfg.SecretAccessKey) > 0 {
awsConfig.Credentials = credentials.NewStaticCredentials(cfg.AccessKeyID, cfg.SecretAccessKey, "")
}
return session.NewSession(awsConfig)
}
// buildMessageSubjectAndBody builds the message subject and body
func (provider *AlertProvider) buildMessageSubjectAndBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) (string, string) {
var subject, message string
if resolved {
subject = fmt.Sprintf("[%s] Alert resolved", ep.DisplayName())
message = fmt.Sprintf("An alert for %s has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
subject = fmt.Sprintf("[%s] Alert triggered", ep.DisplayName())
message = fmt.Sprintf("An alert for %s has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
var formattedConditionResults string
if len(result.ConditionResults) > 0 {
formattedConditionResults = "\n\nCondition results:\n"
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "✅"
} else {
prefix = "❌"
}
formattedConditionResults += fmt.Sprintf("%s %s\n", prefix, conditionResult.Condition)
}
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = "\n\nAlert description: " + alertDescription
}
return subject, message + description + formattedConditionResults
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

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package awsses
import (
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/config/endpoint"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
invalidProviderWithOneKey := AlertProvider{DefaultConfig: Config{From: "from@example.com", To: "to@example.com", AccessKeyID: "1"}}
if err := invalidProviderWithOneKey.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{DefaultConfig: Config{From: "from@example.com", To: "to@example.com"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
validProviderWithKeys := AlertProvider{DefaultConfig: Config{From: "from@example.com", To: "to@example.com", AccessKeyID: "1", SecretAccessKey: "1"}}
if err := validProviderWithKeys.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
Config: Config{To: "to@example.com"},
Group: "",
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
Overrides: []Override{
{
Config: Config{To: ""},
Group: "group",
},
},
}
if err := providerWithInvalidOverrideTo.Validate(); err == nil {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{
From: "from@example.com",
To: "to@example.com",
},
Overrides: []Override{
{
Config: Config{To: "to@example.com"},
Group: "group",
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedSubject string
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedSubject: "[endpoint-name] Alert triggered",
ExpectedBody: "An alert for endpoint-name has been triggered due to having failed 3 time(s) in a row\n\nAlert description: description-1\n\nCondition results:\n❌ [CONNECTED] == true\n❌ [STATUS] == 200\n",
},
{
Name: "resolved",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedSubject: "[endpoint-name] Alert resolved",
ExpectedBody: "An alert for endpoint-name has been resolved after passing successfully 5 time(s) in a row\n\nAlert description: description-2\n\nCondition results:\n✅ [CONNECTED] == true\n✅ [STATUS] == 200\n",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
subject, body := scenario.Provider.buildMessageSubjectAndBody(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if subject != scenario.ExpectedSubject {
t.Errorf("expected subject to be %s, got %s", scenario.ExpectedSubject, subject)
}
if body != scenario.ExpectedBody {
t.Errorf("expected body to be %s, got %s", scenario.ExpectedBody, body)
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_getConfigWithOverrides(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{
From: "from@example.com",
To: "to@example.com",
},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "to@example.com"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{
From: "from@example.com",
To: "to@example.com",
},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "to@example.com"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{
From: "from@example.com",
To: "to@example.com",
},
Overrides: []Override{
{
Group: "group",
Config: Config{To: "groupto@example.com"},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "to@example.com"},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{
From: "from@example.com",
To: "to@example.com",
},
Overrides: []Override{
{
Group: "group",
Config: Config{To: "groupto@example.com", SecretAccessKey: "wow", AccessKeyID: "noway"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "groupto@example.com", SecretAccessKey: "wow", AccessKeyID: "noway"},
},
{
Name: "provider-with-override-specify-group-but-alert-override-should-override-group-override",
Provider: AlertProvider{
DefaultConfig: Config{
From: "from@example.com",
To: "to@example.com",
},
Overrides: []Override{
{
Group: "group",
Config: Config{From: "from@example.com", To: "groupto@example.com", SecretAccessKey: "sekrit"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{
ProviderOverride: map[string]any{
"to": "alertto@example.com",
"access-key-id": 123,
},
},
ExpectedOutput: Config{To: "alertto@example.com", From: "from@example.com", AccessKeyID: "123", SecretAccessKey: "sekrit"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.From != scenario.ExpectedOutput.From {
t.Errorf("expected From to be %s, got %s", scenario.ExpectedOutput.From, got.From)
}
if got.To != scenario.ExpectedOutput.To {
t.Errorf("expected To to be %s, got %s", scenario.ExpectedOutput.To, got.To)
}
if got.AccessKeyID != scenario.ExpectedOutput.AccessKeyID {
t.Errorf("expected AccessKeyID to be %s, got %s", scenario.ExpectedOutput.AccessKeyID, got.AccessKeyID)
}
if got.SecretAccessKey != scenario.ExpectedOutput.SecretAccessKey {
t.Errorf("expected SecretAccessKey to be %s, got %s", scenario.ExpectedOutput.SecretAccessKey, got.SecretAccessKey)
}
if got.Region != scenario.ExpectedOutput.Region {
t.Errorf("expected Region to be %s, got %s", scenario.ExpectedOutput.Region, got.Region)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

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alerting/provider/custom/custom.go Normal file
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package custom
import (
"bytes"
"errors"
"fmt"
"io"
"net/http"
"strings"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
var (
ErrURLNotSet = errors.New("url not set")
)
type Config struct {
URL string `yaml:"url"`
Method string `yaml:"method,omitempty"`
Body string `yaml:"body,omitempty"`
Headers map[string]string `yaml:"headers,omitempty"`
Placeholders map[string]map[string]string `yaml:"placeholders,omitempty"`
// ClientConfig is the configuration of the client used to communicate with the provider's target
ClientConfig *client.Config `yaml:"client,omitempty"`
}
func (cfg *Config) Validate() error {
if len(cfg.URL) == 0 {
return ErrURLNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if override.ClientConfig != nil {
cfg.ClientConfig = override.ClientConfig
}
if len(override.URL) > 0 {
cfg.URL = override.URL
}
if len(override.Method) > 0 {
cfg.Method = override.Method
}
if len(override.Body) > 0 {
cfg.Body = override.Body
}
if len(override.Headers) > 0 {
cfg.Headers = override.Headers
}
if len(override.Placeholders) > 0 {
cfg.Placeholders = override.Placeholders
}
}
// AlertProvider is the configuration necessary for sending an alert using a custom HTTP request
// Technically, all alert providers should be reachable using the custom alert provider
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
return provider.DefaultConfig.Validate()
}
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
request := provider.buildHTTPRequest(cfg, ep, alert, result, resolved)
response, err := client.GetHTTPClient(cfg.ClientConfig).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
func (provider *AlertProvider) buildHTTPRequest(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) *http.Request {
body, url, method := cfg.Body, cfg.URL, cfg.Method
body = strings.ReplaceAll(body, "[ALERT_DESCRIPTION]", alert.GetDescription())
url = strings.ReplaceAll(url, "[ALERT_DESCRIPTION]", alert.GetDescription())
body = strings.ReplaceAll(body, "[ENDPOINT_NAME]", ep.Name)
url = strings.ReplaceAll(url, "[ENDPOINT_NAME]", ep.Name)
body = strings.ReplaceAll(body, "[ENDPOINT_GROUP]", ep.Group)
url = strings.ReplaceAll(url, "[ENDPOINT_GROUP]", ep.Group)
body = strings.ReplaceAll(body, "[ENDPOINT_URL]", ep.URL)
url = strings.ReplaceAll(url, "[ENDPOINT_URL]", ep.URL)
body = strings.ReplaceAll(body, "[RESULT_ERRORS]", strings.Join(result.Errors, ","))
url = strings.ReplaceAll(url, "[RESULT_ERRORS]", strings.Join(result.Errors, ","))
if resolved {
body = strings.ReplaceAll(body, "[ALERT_TRIGGERED_OR_RESOLVED]", provider.GetAlertStatePlaceholderValue(cfg, true))
url = strings.ReplaceAll(url, "[ALERT_TRIGGERED_OR_RESOLVED]", provider.GetAlertStatePlaceholderValue(cfg, true))
} else {
body = strings.ReplaceAll(body, "[ALERT_TRIGGERED_OR_RESOLVED]", provider.GetAlertStatePlaceholderValue(cfg, false))
url = strings.ReplaceAll(url, "[ALERT_TRIGGERED_OR_RESOLVED]", provider.GetAlertStatePlaceholderValue(cfg, false))
}
if len(method) == 0 {
method = http.MethodGet
}
bodyBuffer := bytes.NewBuffer([]byte(body))
request, _ := http.NewRequest(method, url, bodyBuffer)
for k, v := range cfg.Headers {
request.Header.Set(k, v)
}
return request
}
// GetAlertStatePlaceholderValue returns the Placeholder value for ALERT_TRIGGERED_OR_RESOLVED if configured
func (provider *AlertProvider) GetAlertStatePlaceholderValue(cfg *Config, resolved bool) string {
status := "TRIGGERED"
if resolved {
status = "RESOLVED"
}
if _, ok := cfg.Placeholders["ALERT_TRIGGERED_OR_RESOLVED"]; ok {
if val, ok := cfg.Placeholders["ALERT_TRIGGERED_OR_RESOLVED"][status]; ok {
return val
}
}
return status
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

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package custom
import (
"fmt"
"io"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
t.Run("invalid-provider", func(t *testing.T) {
invalidProvider := AlertProvider{DefaultConfig: Config{URL: ""}}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
})
t.Run("valid-provider", func(t *testing.T) {
validProvider := AlertProvider{DefaultConfig: Config{URL: "https://example.com"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
})
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildHTTPRequest(t *testing.T) {
alertProvider := &AlertProvider{
DefaultConfig: Config{
URL: "https://example.com/[ENDPOINT_GROUP]/[ENDPOINT_NAME]?event=[ALERT_TRIGGERED_OR_RESOLVED]&description=[ALERT_DESCRIPTION]&url=[ENDPOINT_URL]",
Body: "[ENDPOINT_NAME],[ENDPOINT_GROUP],[ALERT_DESCRIPTION],[ENDPOINT_URL],[ALERT_TRIGGERED_OR_RESOLVED]",
},
}
alertDescription := "alert-description"
scenarios := []struct {
AlertProvider *AlertProvider
Resolved bool
ExpectedURL string
ExpectedBody string
}{
{
AlertProvider: alertProvider,
Resolved: true,
ExpectedURL: "https://example.com/endpoint-group/endpoint-name?event=RESOLVED&description=alert-description&url=https://example.com",
ExpectedBody: "endpoint-name,endpoint-group,alert-description,https://example.com,RESOLVED",
},
{
AlertProvider: alertProvider,
Resolved: false,
ExpectedURL: "https://example.com/endpoint-group/endpoint-name?event=TRIGGERED&description=alert-description&url=https://example.com",
ExpectedBody: "endpoint-name,endpoint-group,alert-description,https://example.com,TRIGGERED",
},
}
for _, scenario := range scenarios {
t.Run(fmt.Sprintf("resolved-%v-with-default-placeholders", scenario.Resolved), func(t *testing.T) {
request := alertProvider.buildHTTPRequest(
&alertProvider.DefaultConfig,
&endpoint.Endpoint{Name: "endpoint-name", Group: "endpoint-group", URL: "https://example.com"},
&alert.Alert{Description: &alertDescription},
&endpoint.Result{Errors: []string{}},
scenario.Resolved,
)
if request.URL.String() != scenario.ExpectedURL {
t.Error("expected URL to be", scenario.ExpectedURL, "got", request.URL.String())
}
body, _ := io.ReadAll(request.Body)
if string(body) != scenario.ExpectedBody {
t.Error("expected body to be", scenario.ExpectedBody, "got", string(body))
}
})
}
}
func TestAlertProviderWithResultErrors_buildHTTPRequest(t *testing.T) {
alertProvider := &AlertProvider{
DefaultConfig: Config{
URL: "https://example.com/[ENDPOINT_GROUP]/[ENDPOINT_NAME]?event=[ALERT_TRIGGERED_OR_RESOLVED]&description=[ALERT_DESCRIPTION]&url=[ENDPOINT_URL]&error=[RESULT_ERRORS]",
Body: "[ENDPOINT_NAME],[ENDPOINT_GROUP],[ALERT_DESCRIPTION],[ENDPOINT_URL],[ALERT_TRIGGERED_OR_RESOLVED],[RESULT_ERRORS]",
},
}
alertDescription := "alert-description"
scenarios := []struct {
AlertProvider *AlertProvider
Resolved bool
ExpectedURL string
ExpectedBody string
Errors []string
}{
{
AlertProvider: alertProvider,
Resolved: true,
ExpectedURL: "https://example.com/endpoint-group/endpoint-name?event=RESOLVED&description=alert-description&url=https://example.com&error=",
ExpectedBody: "endpoint-name,endpoint-group,alert-description,https://example.com,RESOLVED,",
},
{
AlertProvider: alertProvider,
Resolved: false,
ExpectedURL: "https://example.com/endpoint-group/endpoint-name?event=TRIGGERED&description=alert-description&url=https://example.com&error=error1,error2",
ExpectedBody: "endpoint-name,endpoint-group,alert-description,https://example.com,TRIGGERED,error1,error2",
Errors: []string{"error1", "error2"},
},
}
for _, scenario := range scenarios {
t.Run(fmt.Sprintf("resolved-%v-with-default-placeholders-and-result-errors", scenario.Resolved), func(t *testing.T) {
request := alertProvider.buildHTTPRequest(
&alertProvider.DefaultConfig,
&endpoint.Endpoint{Name: "endpoint-name", Group: "endpoint-group", URL: "https://example.com"},
&alert.Alert{Description: &alertDescription},
&endpoint.Result{Errors: scenario.Errors},
scenario.Resolved,
)
if request.URL.String() != scenario.ExpectedURL {
t.Error("expected URL to be", scenario.ExpectedURL, "got", request.URL.String())
}
body, _ := io.ReadAll(request.Body)
if string(body) != scenario.ExpectedBody {
t.Error("expected body to be", scenario.ExpectedBody, "got", string(body))
}
})
}
}
func TestAlertProvider_buildHTTPRequestWithCustomPlaceholder(t *testing.T) {
alertProvider := &AlertProvider{
DefaultConfig: Config{
URL: "https://example.com/[ENDPOINT_GROUP]/[ENDPOINT_NAME]?event=[ALERT_TRIGGERED_OR_RESOLVED]&description=[ALERT_DESCRIPTION]",
Body: "[ENDPOINT_NAME],[ENDPOINT_GROUP],[ALERT_DESCRIPTION],[ALERT_TRIGGERED_OR_RESOLVED]",
Headers: nil,
Placeholders: map[string]map[string]string{
"ALERT_TRIGGERED_OR_RESOLVED": {
"RESOLVED": "fixed",
"TRIGGERED": "boom",
},
},
},
}
alertDescription := "alert-description"
scenarios := []struct {
AlertProvider *AlertProvider
Resolved bool
ExpectedURL string
ExpectedBody string
}{
{
AlertProvider: alertProvider,
Resolved: true,
ExpectedURL: "https://example.com/endpoint-group/endpoint-name?event=fixed&description=alert-description",
ExpectedBody: "endpoint-name,endpoint-group,alert-description,fixed",
},
{
AlertProvider: alertProvider,
Resolved: false,
ExpectedURL: "https://example.com/endpoint-group/endpoint-name?event=boom&description=alert-description",
ExpectedBody: "endpoint-name,endpoint-group,alert-description,boom",
},
}
for _, scenario := range scenarios {
t.Run(fmt.Sprintf("resolved-%v-with-custom-placeholders", scenario.Resolved), func(t *testing.T) {
request := alertProvider.buildHTTPRequest(
&alertProvider.DefaultConfig,
&endpoint.Endpoint{Name: "endpoint-name", Group: "endpoint-group"},
&alert.Alert{Description: &alertDescription},
&endpoint.Result{},
scenario.Resolved,
)
if request.URL.String() != scenario.ExpectedURL {
t.Error("expected URL to be", scenario.ExpectedURL, "got", request.URL.String())
}
body, _ := io.ReadAll(request.Body)
if string(body) != scenario.ExpectedBody {
t.Error("expected body to be", scenario.ExpectedBody, "got", string(body))
}
})
}
}
func TestAlertProvider_GetAlertStatePlaceholderValueDefaults(t *testing.T) {
alertProvider := &AlertProvider{
DefaultConfig: Config{
URL: "https://example.com/[ENDPOINT_NAME]?event=[ALERT_TRIGGERED_OR_RESOLVED]&description=[ALERT_DESCRIPTION]",
Body: "[ENDPOINT_NAME],[ENDPOINT_GROUP],[ALERT_DESCRIPTION],[ALERT_TRIGGERED_OR_RESOLVED]",
},
}
if alertProvider.GetAlertStatePlaceholderValue(&alertProvider.DefaultConfig, true) != "RESOLVED" {
t.Error("expected RESOLVED, got", alertProvider.GetAlertStatePlaceholderValue(&alertProvider.DefaultConfig, true))
}
if alertProvider.GetAlertStatePlaceholderValue(&alertProvider.DefaultConfig, false) != "TRIGGERED" {
t.Error("expected TRIGGERED, got", alertProvider.GetAlertStatePlaceholderValue(&alertProvider.DefaultConfig, false))
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "http://example.com", Body: "default-body"},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "http://example.com", Body: "default-body"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "http://example.com"},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "http://example.com"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "http://group-example.com", Headers: map[string]string{"Cache": "true"}},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "http://example.com", Headers: map[string]string{"Cache": "true"}},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{URL: "http://example.com", Body: "default-body"},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "http://group-example.com", Body: "group-body"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "http://group-example.com", Body: "group-body"},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{URL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "http://group-example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"url": "http://alert-example.com", "body": "alert-body"}},
ExpectedOutput: Config{URL: "http://alert-example.com", Body: "alert-body"},
},
{
Name: "provider-with-partial-overrides",
Provider: AlertProvider{
DefaultConfig: Config{URL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{Method: "POST"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"body": "alert-body"}},
ExpectedOutput: Config{URL: "http://example.com", Body: "alert-body", Method: "POST"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.URL != scenario.ExpectedOutput.URL {
t.Errorf("expected webhook URL to be %s, got %s", scenario.ExpectedOutput.URL, got.URL)
}
if got.Body != scenario.ExpectedOutput.Body {
t.Errorf("expected body to be %s, got %s", scenario.ExpectedOutput.Body, got.Body)
}
if got.Headers != nil {
for key, value := range scenario.ExpectedOutput.Headers {
if got.Headers[key] != value {
t.Errorf("expected header %s to be %s, got %s", key, value, got.Headers[key])
}
}
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

199
alerting/provider/discord/discord.go Normal file
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@ -0,0 +1,199 @@
package discord
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
var (
ErrWebhookURLNotSet = errors.New("webhook-url not set")
ErrDuplicateGroupOverride = errors.New("duplicate group override")
)
type Config struct {
WebhookURL string `yaml:"webhook-url"`
Title string `yaml:"title,omitempty"` // Title of the message that will be sent
}
func (cfg *Config) Validate() error {
if len(cfg.WebhookURL) == 0 {
return ErrWebhookURLNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.WebhookURL) > 0 {
cfg.WebhookURL = override.WebhookURL
}
if len(override.Title) > 0 {
cfg.Title = override.Title
}
}
// AlertProvider is the configuration necessary for sending an alert using Discord
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" || len(override.WebhookURL) == 0 {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, cfg.WebhookURL, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
Content string `json:"content"`
Embeds []Embed `json:"embeds"`
}
type Embed struct {
Title string `json:"title"`
Description string `json:"description"`
Color int `json:"color"`
Fields []Field `json:"fields,omitempty"`
}
type Field struct {
Name string `json:"name"`
Value string `json:"value"`
Inline bool `json:"inline"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message string
var colorCode int
if resolved {
message = fmt.Sprintf("An alert for **%s** has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
colorCode = 3066993
} else {
message = fmt.Sprintf("An alert for **%s** has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
colorCode = 15158332
}
var formattedConditionResults string
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = ":white_check_mark:"
} else {
prefix = ":x:"
}
formattedConditionResults += fmt.Sprintf("%s - `%s`\n", prefix, conditionResult.Condition)
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = ":\n> " + alertDescription
}
title := ":helmet_with_white_cross: Gatus"
if cfg.Title != "" {
title = cfg.Title
}
body := Body{
Content: "",
Embeds: []Embed{
{
Title: title,
Description: message + description,
Color: colorCode,
},
},
}
if len(formattedConditionResults) > 0 {
body.Embeds[0].Fields = append(body.Embeds[0].Fields, Field{
Name: "Condition results",
Value: formattedConditionResults,
Inline: false,
})
}
bodyAsJSON, _ := json.Marshal(body)
return bodyAsJSON
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

332
alerting/provider/discord/discord_test.go Normal file
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package discord
import (
"encoding/json"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{DefaultConfig: Config{WebhookURL: ""}}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
Config: Config{WebhookURL: "http://example.com"},
Group: "",
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
Overrides: []Override{
{
Config: Config{WebhookURL: ""},
Group: "group",
},
},
}
if err := providerWithInvalidOverrideTo.Validate(); err == nil {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{
WebhookURL: "http://example.com",
},
Overrides: []Override{
{
Config: Config{WebhookURL: "http://example.com"},
Group: "group",
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
title := "provider-title"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "triggered-with-modified-title",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com", Title: title}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-with-webhook-override",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3, ProviderOverride: map[string]any{"webhook-url": "http://example01.com"}},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
title := "provider-title"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
NoConditions bool
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: "{\"content\":\"\",\"embeds\":[{\"title\":\":helmet_with_white_cross: Gatus\",\"description\":\"An alert for **endpoint-name** has been triggered due to having failed 3 time(s) in a row:\\n\\u003e description-1\",\"color\":15158332,\"fields\":[{\"name\":\"Condition results\",\"value\":\":x: - `[CONNECTED] == true`\\n:x: - `[STATUS] == 200`\\n:x: - `[BODY] != \\\"\\\"`\\n\",\"inline\":false}]}]}",
},
{
Name: "resolved",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: "{\"content\":\"\",\"embeds\":[{\"title\":\":helmet_with_white_cross: Gatus\",\"description\":\"An alert for **endpoint-name** has been resolved after passing successfully 5 time(s) in a row:\\n\\u003e description-2\",\"color\":3066993,\"fields\":[{\"name\":\"Condition results\",\"value\":\":white_check_mark: - `[CONNECTED] == true`\\n:white_check_mark: - `[STATUS] == 200`\\n:white_check_mark: - `[BODY] != \\\"\\\"`\\n\",\"inline\":false}]}]}",
},
{
Name: "triggered-with-modified-title",
Provider: AlertProvider{DefaultConfig: Config{Title: title}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: "{\"content\":\"\",\"embeds\":[{\"title\":\"provider-title\",\"description\":\"An alert for **endpoint-name** has been triggered due to having failed 3 time(s) in a row:\\n\\u003e description-1\",\"color\":15158332,\"fields\":[{\"name\":\"Condition results\",\"value\":\":x: - `[CONNECTED] == true`\\n:x: - `[STATUS] == 200`\\n:x: - `[BODY] != \\\"\\\"`\\n\",\"inline\":false}]}]}",
},
{
Name: "triggered-with-no-conditions",
NoConditions: true,
Provider: AlertProvider{DefaultConfig: Config{Title: title}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: "{\"content\":\"\",\"embeds\":[{\"title\":\"provider-title\",\"description\":\"An alert for **endpoint-name** has been triggered due to having failed 3 time(s) in a row:\\n\\u003e description-1\",\"color\":15158332}]}",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
var conditionResults []*endpoint.ConditionResult
if !scenario.NoConditions {
conditionResults = []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
{Condition: "[BODY] != \"\"", Success: scenario.Resolved},
}
}
body := scenario.Provider.buildRequestBody(
&scenario.Provider.DefaultConfig,
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: conditionResults,
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://group-example.com"},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://group-example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://group-example.com"},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://group-example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"webhook-url": "http://alert-example.com"}},
ExpectedOutput: Config{WebhookURL: "http://alert-example.com"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.WebhookURL != scenario.ExpectedOutput.WebhookURL {
t.Errorf("expected webhook URL to be %s, got %s", scenario.ExpectedOutput.WebhookURL, got.WebhookURL)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

206
alerting/provider/email/email.go Normal file
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@ -0,0 +1,206 @@
package email
import (
"crypto/tls"
"errors"
"fmt"
"math"
"strings"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
gomail "gopkg.in/mail.v2"
"gopkg.in/yaml.v3"
)
var (
ErrDuplicateGroupOverride = errors.New("duplicate group override")
ErrMissingFromOrToFields = errors.New("from and to fields are required")
ErrInvalidPort = errors.New("port must be between 1 and 65535 inclusively")
ErrMissingHost = errors.New("host is required")
)
type Config struct {
From string `yaml:"from"`
Username string `yaml:"username"`
Password string `yaml:"password"`
Host string `yaml:"host"`
Port int `yaml:"port"`
To string `yaml:"to"`
// ClientConfig is the configuration of the client used to communicate with the provider's target
ClientConfig *client.Config `yaml:"client,omitempty"`
}
func (cfg *Config) Validate() error {
if len(cfg.From) == 0 || len(cfg.To) == 0 {
return ErrMissingFromOrToFields
}
if cfg.Port < 1 || cfg.Port > math.MaxUint16 {
return ErrInvalidPort
}
if len(cfg.Host) == 0 {
return ErrMissingHost
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if override.ClientConfig != nil {
cfg.ClientConfig = override.ClientConfig
}
if len(override.From) > 0 {
cfg.From = override.From
}
if len(override.Username) > 0 {
cfg.Username = override.Username
}
if len(override.Password) > 0 {
cfg.Password = override.Password
}
if len(override.Host) > 0 {
cfg.Host = override.Host
}
if override.Port > 0 {
cfg.Port = override.Port
}
if len(override.To) > 0 {
cfg.To = override.To
}
}
// AlertProvider is the configuration necessary for sending an alert using SMTP
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" || len(override.To) == 0 {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
var username string
if len(cfg.Username) > 0 {
username = cfg.Username
} else {
username = cfg.From
}
subject, body := provider.buildMessageSubjectAndBody(ep, alert, result, resolved)
m := gomail.NewMessage()
m.SetHeader("From", cfg.From)
m.SetHeader("To", strings.Split(cfg.To, ",")...)
m.SetHeader("Subject", subject)
m.SetBody("text/plain", body)
var d *gomail.Dialer
if len(cfg.Password) == 0 {
// Get the domain in the From address
localName := "localhost"
fromParts := strings.Split(cfg.From, `@`)
if len(fromParts) == 2 {
localName = fromParts[1]
}
// Create a dialer with no authentication
d = &gomail.Dialer{Host: cfg.Host, Port: cfg.Port, LocalName: localName}
} else {
// Create an authenticated dialer
d = gomail.NewDialer(cfg.Host, cfg.Port, username, cfg.Password)
}
if cfg.ClientConfig != nil && cfg.ClientConfig.Insecure {
d.TLSConfig = &tls.Config{InsecureSkipVerify: true}
}
return d.DialAndSend(m)
}
// buildMessageSubjectAndBody builds the message subject and body
func (provider *AlertProvider) buildMessageSubjectAndBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) (string, string) {
var subject, message string
if resolved {
subject = fmt.Sprintf("[%s] Alert resolved", ep.DisplayName())
message = fmt.Sprintf("An alert for %s has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
subject = fmt.Sprintf("[%s] Alert triggered", ep.DisplayName())
message = fmt.Sprintf("An alert for %s has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
var formattedConditionResults string
if len(result.ConditionResults) > 0 {
formattedConditionResults = "\n\nCondition results:\n"
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "✅"
} else {
prefix = "❌"
}
formattedConditionResults += fmt.Sprintf("%s %s\n", prefix, conditionResult.Condition)
}
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = "\n\nAlert description: " + alertDescription
}
return subject, message + description + formattedConditionResults
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

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package email
import (
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/config/endpoint"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{DefaultConfig: Config{From: "from@example.com", Password: "password", Host: "smtp.gmail.com", Port: 587, To: "to@example.com"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_ValidateWithNoCredentials(t *testing.T) {
validProvider := AlertProvider{DefaultConfig: Config{From: "from@example.com", Host: "smtp-relay.gmail.com", Port: 587, To: "to@example.com"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
Config: Config{To: "to@example.com"},
Group: "",
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
Overrides: []Override{
{
Config: Config{To: ""},
Group: "group",
},
},
}
if err := providerWithInvalidOverrideTo.Validate(); err == nil {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{
From: "from@example.com",
Password: "password",
Host: "smtp.gmail.com",
Port: 587,
To: "to@example.com",
},
Overrides: []Override{
{
Config: Config{To: "to@example.com"},
Group: "group",
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedSubject string
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedSubject: "[endpoint-name] Alert triggered",
ExpectedBody: "An alert for endpoint-name has been triggered due to having failed 3 time(s) in a row\n\nAlert description: description-1\n\nCondition results:\n❌ [CONNECTED] == true\n❌ [STATUS] == 200\n",
},
{
Name: "resolved",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedSubject: "[endpoint-name] Alert resolved",
ExpectedBody: "An alert for endpoint-name has been resolved after passing successfully 5 time(s) in a row\n\nAlert description: description-2\n\nCondition results:\n✅ [CONNECTED] == true\n✅ [STATUS] == 200\n",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
subject, body := scenario.Provider.buildMessageSubjectAndBody(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if subject != scenario.ExpectedSubject {
t.Errorf("expected subject to be %s, got %s", scenario.ExpectedSubject, subject)
}
if body != scenario.ExpectedBody {
t.Errorf("expected body to be %s, got %s", scenario.ExpectedBody, body)
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
Overrides: []Override{
{
Group: "group",
Config: Config{To: "to01@example.com"},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
Overrides: []Override{
{
Group: "group",
Config: Config{To: "group-to@example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{From: "from@example.com", To: "group-to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{From: "from@example.com", To: "to@example.com", Host: "smtp.gmail.com", Port: 587, Password: "password"},
Overrides: []Override{
{
Group: "group",
Config: Config{To: "group-to@example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"to": "alert-to@example.com", "host": "smtp.example.com", "port": 588, "password": "hunter2"}},
ExpectedOutput: Config{From: "from@example.com", To: "alert-to@example.com", Host: "smtp.example.com", Port: 588, Password: "hunter2"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.From != scenario.ExpectedOutput.From {
t.Errorf("expected from to be %s, got %s", scenario.ExpectedOutput.From, got.From)
}
if got.To != scenario.ExpectedOutput.To {
t.Errorf("expected to be %s, got %s", scenario.ExpectedOutput.To, got.To)
}
if got.Host != scenario.ExpectedOutput.Host {
t.Errorf("expected host to be %s, got %s", scenario.ExpectedOutput.Host, got.Host)
}
if got.Port != scenario.ExpectedOutput.Port {
t.Errorf("expected port to be %d, got %d", scenario.ExpectedOutput.Port, got.Port)
}
if got.Password != scenario.ExpectedOutput.Password {
t.Errorf("expected password to be %s, got %s", scenario.ExpectedOutput.Password, got.Password)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

217
alerting/provider/gitea/gitea.go Normal file
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package gitea
import (
"crypto/tls"
"errors"
"fmt"
"net/http"
"net/url"
"strings"
"code.gitea.io/sdk/gitea"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
var (
ErrRepositoryURLNotSet = errors.New("repository-url not set")
ErrInvalidRepositoryURL = errors.New("invalid repository-url")
ErrTokenNotSet = errors.New("token not set")
)
type Config struct {
RepositoryURL string `yaml:"repository-url"` // The URL of the Gitea repository to create issues in
Token string `yaml:"token"` // Token requires at least RW on issues and RO on metadata
Assignees []string `yaml:"assignees,omitempty"` // Assignees is a list of users to assign the issue to
username string
repositoryOwner string
repositoryName string
giteaClient *gitea.Client
// ClientConfig is the configuration of the client used to communicate with the provider's target
ClientConfig *client.Config `yaml:"client,omitempty"`
}
func (cfg *Config) Validate() error {
if len(cfg.RepositoryURL) == 0 {
return ErrRepositoryURLNotSet
}
if len(cfg.Token) == 0 {
return ErrTokenNotSet
}
// Validate format of the repository URL
repositoryURL, err := url.Parse(cfg.RepositoryURL)
if err != nil {
return err
}
baseURL := repositoryURL.Scheme + "://" + repositoryURL.Host
pathParts := strings.Split(repositoryURL.Path, "/")
if len(pathParts) != 3 {
return ErrInvalidRepositoryURL
}
if cfg.repositoryOwner == pathParts[1] && cfg.repositoryName == pathParts[2] && cfg.giteaClient != nil {
// Already validated, let's skip the rest of the validation to avoid unnecessary API calls
return nil
}
cfg.repositoryOwner = pathParts[1]
cfg.repositoryName = pathParts[2]
opts := []gitea.ClientOption{
gitea.SetToken(cfg.Token),
}
if cfg.ClientConfig != nil && cfg.ClientConfig.Insecure {
// add new http client for skip verify
httpClient := &http.Client{
Transport: &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
},
}
opts = append(opts, gitea.SetHTTPClient(httpClient))
}
cfg.giteaClient, err = gitea.NewClient(baseURL, opts...)
if err != nil {
return err
}
user, _, err := cfg.giteaClient.GetMyUserInfo()
if err != nil {
return err
}
cfg.username = user.UserName
return nil
}
func (cfg *Config) Merge(override *Config) {
if override.ClientConfig != nil {
cfg.ClientConfig = override.ClientConfig
}
if len(override.RepositoryURL) > 0 {
cfg.RepositoryURL = override.RepositoryURL
}
if len(override.Token) > 0 {
cfg.Token = override.Token
}
if len(override.Assignees) > 0 {
cfg.Assignees = override.Assignees
}
}
// AlertProvider is the configuration necessary for sending an alert using Discord
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
return provider.DefaultConfig.Validate()
}
// Send creates an issue in the designed RepositoryURL if the resolved parameter passed is false,
// or closes the relevant issue(s) if the resolved parameter passed is true.
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
title := "alert(gatus): " + ep.DisplayName()
if !resolved {
_, _, err = cfg.giteaClient.CreateIssue(
cfg.repositoryOwner,
cfg.repositoryName,
gitea.CreateIssueOption{
Title: title,
Body: provider.buildIssueBody(ep, alert, result),
Assignees: cfg.Assignees,
},
)
if err != nil {
return fmt.Errorf("failed to create issue: %w", err)
}
return nil
}
issues, _, err := cfg.giteaClient.ListRepoIssues(
cfg.repositoryOwner,
cfg.repositoryName,
gitea.ListIssueOption{
State: gitea.StateOpen,
CreatedBy: cfg.username,
ListOptions: gitea.ListOptions{
Page: 100,
},
},
)
if err != nil {
return fmt.Errorf("failed to list issues: %w", err)
}
for _, issue := range issues {
if issue.Title == title {
stateClosed := gitea.StateClosed
_, _, err = cfg.giteaClient.EditIssue(
cfg.repositoryOwner,
cfg.repositoryName,
issue.ID,
gitea.EditIssueOption{
State: &stateClosed,
},
)
if err != nil {
return fmt.Errorf("failed to close issue: %w", err)
}
}
}
return nil
}
// buildIssueBody builds the body of the issue
func (provider *AlertProvider) buildIssueBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result) string {
var formattedConditionResults string
if len(result.ConditionResults) > 0 {
formattedConditionResults = "\n\n## Condition results\n"
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = ":white_check_mark:"
} else {
prefix = ":x:"
}
formattedConditionResults += fmt.Sprintf("- %s - `%s`\n", prefix, conditionResult.Condition)
}
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = ":\n> " + alertDescription
}
message := fmt.Sprintf("An alert for **%s** has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
return message + description + formattedConditionResults
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration (we're returning the cfg here even if there's an error mostly for testing purposes)
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

229
alerting/provider/gitea/gitea_test.go Normal file
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package gitea
import (
"net/http"
"strings"
"testing"
"code.gitea.io/sdk/gitea"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
ExpectedError bool
}{
{
Name: "invalid",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "", Token: ""}},
ExpectedError: true,
},
{
Name: "invalid-token",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://gitea.com/TwiN/test", Token: "12345"}},
ExpectedError: true,
},
{
Name: "missing-repository-name",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://gitea.com/TwiN", Token: "12345"}},
ExpectedError: true,
},
{
Name: "enterprise-client",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://gitea.example.com/TwiN/test", Token: "12345"}},
ExpectedError: false,
},
{
Name: "invalid-url",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "gitea.com/TwiN/test", Token: "12345"}},
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
err := scenario.Provider.Validate()
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil && !strings.Contains(err.Error(), "user does not exist") && !strings.Contains(err.Error(), "no such host") {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://gitea.com/TwiN/test", Token: "12345"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedError: true,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://gitea.com/TwiN/test", Token: "12345"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
cfg, err := scenario.Provider.GetConfig("", &scenario.Alert)
if err != nil && !strings.Contains(err.Error(), "user does not exist") && !strings.Contains(err.Error(), "no such host") {
t.Error("expected no error, got", err.Error())
}
cfg.giteaClient, _ = gitea.NewClient("https://gitea.com")
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err = scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name", Group: "endpoint-group"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
scenarios := []struct {
Name string
Endpoint endpoint.Endpoint
Provider AlertProvider
Alert alert.Alert
NoConditions bool
ExpectedBody string
}{
{
Name: "triggered",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, FailureThreshold: 3},
ExpectedBody: "An alert for **endpoint-name** has been triggered due to having failed 3 time(s) in a row:\n> description-1\n\n## Condition results\n- :white_check_mark: - `[CONNECTED] == true`\n- :x: - `[STATUS] == 200`",
},
{
Name: "triggered-with-no-description",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{FailureThreshold: 10},
ExpectedBody: "An alert for **endpoint-name** has been triggered due to having failed 10 time(s) in a row\n\n## Condition results\n- :white_check_mark: - `[CONNECTED] == true`\n- :x: - `[STATUS] == 200`",
},
{
Name: "triggered-with-no-conditions",
NoConditions: true,
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, FailureThreshold: 10},
ExpectedBody: "An alert for **endpoint-name** has been triggered due to having failed 10 time(s) in a row:\n> description-1",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
var conditionResults []*endpoint.ConditionResult
if !scenario.NoConditions {
conditionResults = []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: true},
{Condition: "[STATUS] == 200", Success: false},
}
}
body := scenario.Provider.buildIssueBody(
&scenario.Endpoint,
&scenario.Alert,
&endpoint.Result{ConditionResults: conditionResults},
)
if strings.TrimSpace(body) != strings.TrimSpace(scenario.ExpectedBody) {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-should-default",
Provider: AlertProvider{
DefaultConfig: Config{RepositoryURL: "https://gitea.com/TwiN/test", Token: "12345"},
},
InputAlert: alert.Alert{},
ExpectedOutput: Config{RepositoryURL: "https://gitea.com/TwiN/test", Token: "12345"},
},
{
Name: "provider-with-alert-override",
Provider: AlertProvider{
DefaultConfig: Config{RepositoryURL: "https://gitea.com/TwiN/test", Token: "12345"},
},
InputAlert: alert.Alert{ProviderOverride: map[string]any{"repository-url": "https://gitea.com/TwiN/alert-test", "token": "54321", "assignees": []string{"TwiN"}}},
ExpectedOutput: Config{RepositoryURL: "https://gitea.com/TwiN/alert-test", Token: "54321", Assignees: []string{"TwiN"}},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig("", &scenario.InputAlert)
if err != nil && !strings.Contains(err.Error(), "user does not exist") && !strings.Contains(err.Error(), "no such host") {
t.Fatalf("unexpected error: %s", err)
}
if got.RepositoryURL != scenario.ExpectedOutput.RepositoryURL {
t.Errorf("expected repository URL %s, got %s", scenario.ExpectedOutput.RepositoryURL, got.RepositoryURL)
}
if got.Token != scenario.ExpectedOutput.Token {
t.Errorf("expected token %s, got %s", scenario.ExpectedOutput.Token, got.Token)
}
if len(got.Assignees) != len(scenario.ExpectedOutput.Assignees) {
t.Errorf("expected %d assignees, got %d", len(scenario.ExpectedOutput.Assignees), len(got.Assignees))
}
for i, assignee := range got.Assignees {
if assignee != scenario.ExpectedOutput.Assignees[i] {
t.Errorf("expected assignee %s, got %s", scenario.ExpectedOutput.Assignees[i], assignee)
}
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides("", &scenario.InputAlert); err != nil && !strings.Contains(err.Error(), "user does not exist") {
t.Errorf("unexpected error: %s", err)
}
})
}
}

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package github
import (
"context"
"errors"
"fmt"
"net/url"
"strings"
"time"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/google/go-github/v48/github"
"golang.org/x/oauth2"
"gopkg.in/yaml.v3"
)
var (
ErrRepositoryURLNotSet = errors.New("repository-url not set")
ErrInvalidRepositoryURL = errors.New("invalid repository-url")
ErrTokenNotSet = errors.New("token not set")
)
type Config struct {
RepositoryURL string `yaml:"repository-url"` // The URL of the GitHub repository to create issues in
Token string `yaml:"token"` // Token requires at least RW on issues and RO on metadata
username string
repositoryOwner string
repositoryName string
githubClient *github.Client
}
func (cfg *Config) Validate() error {
if len(cfg.RepositoryURL) == 0 {
return ErrRepositoryURLNotSet
}
if len(cfg.Token) == 0 {
return ErrTokenNotSet
}
// Validate format of the repository URL
repositoryURL, err := url.Parse(cfg.RepositoryURL)
if err != nil {
return err
}
baseURL := repositoryURL.Scheme + "://" + repositoryURL.Host
pathParts := strings.Split(repositoryURL.Path, "/")
if len(pathParts) != 3 {
return ErrInvalidRepositoryURL
}
if cfg.repositoryOwner == pathParts[1] && cfg.repositoryName == pathParts[2] && cfg.githubClient != nil {
// Already validated, let's skip the rest of the validation to avoid unnecessary API calls
return nil
}
cfg.repositoryOwner = pathParts[1]
cfg.repositoryName = pathParts[2]
// Create oauth2 HTTP client with GitHub token
httpClientWithStaticTokenSource := oauth2.NewClient(context.Background(), oauth2.StaticTokenSource(&oauth2.Token{
AccessToken: cfg.Token,
}))
// Create GitHub client
if baseURL == "https://github.com" {
cfg.githubClient = github.NewClient(httpClientWithStaticTokenSource)
} else {
cfg.githubClient, err = github.NewEnterpriseClient(baseURL, baseURL, httpClientWithStaticTokenSource)
if err != nil {
return fmt.Errorf("failed to create enterprise GitHub client: %w", err)
}
}
// Retrieve the username once to validate that the token is valid
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
user, _, err := cfg.githubClient.Users.Get(ctx, "")
if err != nil {
return fmt.Errorf("failed to retrieve GitHub user: %w", err)
}
cfg.username = *user.Login
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.RepositoryURL) > 0 {
cfg.RepositoryURL = override.RepositoryURL
}
if len(override.Token) > 0 {
cfg.Token = override.Token
}
}
// AlertProvider is the configuration necessary for sending an alert using Discord
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
return provider.DefaultConfig.Validate()
}
// Send creates an issue in the designed RepositoryURL if the resolved parameter passed is false,
// or closes the relevant issue(s) if the resolved parameter passed is true.
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
title := "alert(gatus): " + ep.DisplayName()
if !resolved {
_, _, err := cfg.githubClient.Issues.Create(context.Background(), cfg.repositoryOwner, cfg.repositoryName, &github.IssueRequest{
Title: github.String(title),
Body: github.String(provider.buildIssueBody(ep, alert, result)),
})
if err != nil {
return fmt.Errorf("failed to create issue: %w", err)
}
} else {
issues, _, err := cfg.githubClient.Issues.ListByRepo(context.Background(), cfg.repositoryOwner, cfg.repositoryName, &github.IssueListByRepoOptions{
State: "open",
Creator: cfg.username,
ListOptions: github.ListOptions{PerPage: 100},
})
if err != nil {
return fmt.Errorf("failed to list issues: %w", err)
}
for _, issue := range issues {
if *issue.Title == title {
_, _, err = cfg.githubClient.Issues.Edit(context.Background(), cfg.repositoryOwner, cfg.repositoryName, *issue.Number, &github.IssueRequest{
State: github.String("closed"),
})
if err != nil {
return fmt.Errorf("failed to close issue: %w", err)
}
}
}
}
return nil
}
// buildIssueBody builds the body of the issue
func (provider *AlertProvider) buildIssueBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result) string {
var formattedConditionResults string
if len(result.ConditionResults) > 0 {
formattedConditionResults = "\n\n## Condition results\n"
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = ":white_check_mark:"
} else {
prefix = ":x:"
}
formattedConditionResults += fmt.Sprintf("- %s - `%s`\n", prefix, conditionResult.Condition)
}
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = ":\n> " + alertDescription
}
message := fmt.Sprintf("An alert for **%s** has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
return message + description + formattedConditionResults
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration (we're returning the cfg here even if there's an error mostly for testing purposes)
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

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package github
import (
"net/http"
"strings"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
"github.com/google/go-github/v48/github"
)
func TestAlertProvider_Validate(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
ExpectedError bool
}{
{
Name: "invalid",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "", Token: ""}},
ExpectedError: true,
},
{
Name: "invalid-token",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://github.com/TwiN/test", Token: "12345"}},
ExpectedError: true,
},
{
Name: "missing-repository-name",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://github.com/TwiN", Token: "12345"}},
ExpectedError: true,
},
{
Name: "enterprise-client",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://github.example.com/TwiN/test", Token: "12345"}},
ExpectedError: true,
},
{
Name: "invalid-url",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "github.com/TwiN/test", Token: "12345"}},
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
err := scenario.Provider.Validate()
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil && !strings.Contains(err.Error(), "user does not exist") && !strings.Contains(err.Error(), "no such host") {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://github.com/TwiN/test", Token: "12345"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedError: true,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{RepositoryURL: "https://github.com/TwiN/test", Token: "12345"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
cfg, err := scenario.Provider.GetConfig("", &scenario.Alert)
if err != nil && !strings.Contains(err.Error(), "failed to retrieve GitHub user") && !strings.Contains(err.Error(), "no such host") {
t.Error("expected no error, got", err.Error())
}
cfg.githubClient = github.NewClient(nil)
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err = scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name", Group: "endpoint-group"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
scenarios := []struct {
Name string
Endpoint endpoint.Endpoint
Provider AlertProvider
Alert alert.Alert
NoConditions bool
ExpectedBody string
}{
{
Name: "triggered",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, FailureThreshold: 3},
ExpectedBody: "An alert for **endpoint-name** has been triggered due to having failed 3 time(s) in a row:\n> description-1\n\n## Condition results\n- :white_check_mark: - `[CONNECTED] == true`\n- :x: - `[STATUS] == 200`",
},
{
Name: "triggered-with-no-description",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{FailureThreshold: 10},
ExpectedBody: "An alert for **endpoint-name** has been triggered due to having failed 10 time(s) in a row\n\n## Condition results\n- :white_check_mark: - `[CONNECTED] == true`\n- :x: - `[STATUS] == 200`",
},
{
Name: "triggered-with-no-conditions",
NoConditions: true,
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, FailureThreshold: 10},
ExpectedBody: "An alert for **endpoint-name** has been triggered due to having failed 10 time(s) in a row:\n> description-1",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
var conditionResults []*endpoint.ConditionResult
if !scenario.NoConditions {
conditionResults = []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: true},
{Condition: "[STATUS] == 200", Success: false},
}
}
body := scenario.Provider.buildIssueBody(
&scenario.Endpoint,
&scenario.Alert,
&endpoint.Result{ConditionResults: conditionResults},
)
if strings.TrimSpace(body) != strings.TrimSpace(scenario.ExpectedBody) {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-should-default",
Provider: AlertProvider{
DefaultConfig: Config{RepositoryURL: "https://github.com/TwiN/test", Token: "12345"},
},
InputAlert: alert.Alert{},
ExpectedOutput: Config{RepositoryURL: "https://github.com/TwiN/test", Token: "12345"},
},
{
Name: "provider-with-alert-override",
Provider: AlertProvider{
DefaultConfig: Config{RepositoryURL: "https://github.com/TwiN/test", Token: "12345"},
},
InputAlert: alert.Alert{ProviderOverride: map[string]any{"repository-url": "https://github.com/TwiN/alert-test", "token": "54321"}},
ExpectedOutput: Config{RepositoryURL: "https://github.com/TwiN/alert-test", Token: "54321"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig("", &scenario.InputAlert)
if err != nil && !strings.Contains(err.Error(), "failed to retrieve GitHub user") && !strings.Contains(err.Error(), "no such host") {
t.Fatalf("unexpected error: %s", err)
}
if got.RepositoryURL != scenario.ExpectedOutput.RepositoryURL {
t.Errorf("expected repository URL %s, got %s", scenario.ExpectedOutput.RepositoryURL, got.RepositoryURL)
}
if got.Token != scenario.ExpectedOutput.Token {
t.Errorf("expected token %s, got %s", scenario.ExpectedOutput.Token, got.Token)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides("", &scenario.InputAlert); err != nil && !strings.Contains(err.Error(), "failed to retrieve GitHub user") {
t.Errorf("unexpected error: %s", err)
}
})
}
}

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package gitlab
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"time"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/google/uuid"
"gopkg.in/yaml.v3"
)
const (
DefaultSeverity = "critical"
DefaultMonitoringTool = "gatus"
)
var (
ErrInvalidWebhookURL = fmt.Errorf("invalid webhook-url")
ErrAuthorizationKeyNotSet = fmt.Errorf("authorization-key not set")
)
type Config struct {
WebhookURL string `yaml:"webhook-url"` // The webhook url provided by GitLab
AuthorizationKey string `yaml:"authorization-key"` // The authorization key provided by GitLab
Severity string `yaml:"severity,omitempty"` // Severity can be one of: critical, high, medium, low, info, unknown. Defaults to critical
MonitoringTool string `yaml:"monitoring-tool,omitempty"` // MonitoringTool overrides the name sent to gitlab. Defaults to gatus
EnvironmentName string `yaml:"environment-name,omitempty"` // EnvironmentName is the name of the associated GitLab environment. Required to display alerts on a dashboard.
Service string `yaml:"service,omitempty"` // Service affected. Defaults to the endpoint's display name
}
func (cfg *Config) Validate() error {
if len(cfg.WebhookURL) == 0 {
return ErrInvalidWebhookURL
} else if _, err := url.Parse(cfg.WebhookURL); err != nil {
return ErrInvalidWebhookURL
}
if len(cfg.AuthorizationKey) == 0 {
return ErrAuthorizationKeyNotSet
}
if len(cfg.Severity) == 0 {
cfg.Severity = DefaultSeverity
}
if len(cfg.MonitoringTool) == 0 {
cfg.MonitoringTool = DefaultMonitoringTool
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.WebhookURL) > 0 {
cfg.WebhookURL = override.WebhookURL
}
if len(override.AuthorizationKey) > 0 {
cfg.AuthorizationKey = override.AuthorizationKey
}
if len(override.Severity) > 0 {
cfg.Severity = override.Severity
}
if len(override.MonitoringTool) > 0 {
cfg.MonitoringTool = override.MonitoringTool
}
if len(override.EnvironmentName) > 0 {
cfg.EnvironmentName = override.EnvironmentName
}
if len(override.Service) > 0 {
cfg.Service = override.Service
}
}
// AlertProvider is the configuration necessary for sending an alert using GitLab
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
return provider.DefaultConfig.Validate()
}
// Send creates an issue in the designed RepositoryURL if the resolved parameter passed is false,
// or closes the relevant issue(s) if the resolved parameter passed is true.
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
if len(alert.ResolveKey) == 0 {
alert.ResolveKey = uuid.NewString()
}
buffer := bytes.NewBuffer(provider.buildAlertBody(cfg, ep, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, cfg.WebhookURL, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Authorization", fmt.Sprintf("Bearer %s", cfg.AuthorizationKey))
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type AlertBody struct {
Title string `json:"title,omitempty"` // The title of the alert.
Description string `json:"description,omitempty"` // A high-level summary of the problem.
StartTime string `json:"start_time,omitempty"` // The time of the alert. If none is provided, a current time is used.
EndTime string `json:"end_time,omitempty"` // The resolution time of the alert. If provided, the alert is resolved.
Service string `json:"service,omitempty"` // The affected service.
MonitoringTool string `json:"monitoring_tool,omitempty"` // The name of the associated monitoring tool.
Hosts string `json:"hosts,omitempty"` // One or more hosts, as to where this incident occurred.
Severity string `json:"severity,omitempty"` // The severity of the alert. Case-insensitive. Can be one of: critical, high, medium, low, info, unknown. Defaults to critical if missing or value is not in this list.
Fingerprint string `json:"fingerprint,omitempty"` // The unique identifier of the alert. This can be used to group occurrences of the same alert.
GitlabEnvironmentName string `json:"gitlab_environment_name,omitempty"` // The name of the associated GitLab environment. Required to display alerts on a dashboard.
}
// buildAlertBody builds the body of the alert
func (provider *AlertProvider) buildAlertBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
service := cfg.Service
if len(service) == 0 {
service = ep.DisplayName()
}
body := AlertBody{
Title: fmt.Sprintf("alert(%s): %s", cfg.MonitoringTool, service),
StartTime: result.Timestamp.Format(time.RFC3339),
Service: service,
MonitoringTool: cfg.MonitoringTool,
Hosts: ep.URL,
GitlabEnvironmentName: cfg.EnvironmentName,
Severity: cfg.Severity,
Fingerprint: alert.ResolveKey,
}
if resolved {
body.EndTime = result.Timestamp.Format(time.RFC3339)
}
var formattedConditionResults string
if len(result.ConditionResults) > 0 {
formattedConditionResults = "\n\n## Condition results\n"
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = ":white_check_mark:"
} else {
prefix = ":x:"
}
formattedConditionResults += fmt.Sprintf("- %s - `%s`\n", prefix, conditionResult.Condition)
}
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = ":\n> " + alertDescription
}
var message string
if resolved {
message = fmt.Sprintf("An alert for *%s* has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
message = fmt.Sprintf("An alert for *%s* has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
body.Description = message + description + formattedConditionResults
bodyAsJSON, _ := json.Marshal(body)
return bodyAsJSON
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration (we're returning the cfg here even if there's an error mostly for testing purposes)
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

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package gitlab
import (
"net/http"
"strings"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
ExpectedError bool
}{
{
Name: "invalid",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "", AuthorizationKey: ""}},
ExpectedError: true,
},
{
Name: "missing-webhook-url",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "", AuthorizationKey: "12345"}},
ExpectedError: true,
},
{
Name: "missing-authorization-key",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "https://gitlab.com/whatever/text/alerts/notify/gatus/xxxxxxxxxxxxxxxx.json", AuthorizationKey: ""}},
ExpectedError: true,
},
{
Name: "invalid-url",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: " http://foo.com", AuthorizationKey: "12345"}},
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
err := scenario.Provider.Validate()
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil && !strings.Contains(err.Error(), "user does not exist") && !strings.Contains(err.Error(), "no such host") {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "https://gitlab.com/hlidotbe/text/alerts/notify/gatus/xxxxxxxxxxxxxxxx.json", AuthorizationKey: "12345"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedError: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "https://gitlab.com/hlidotbe/text/alerts/notify/gatus/xxxxxxxxxxxxxxxx.json", AuthorizationKey: "12345"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedError: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name", Group: "endpoint-group"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildAlertBody(t *testing.T) {
firstDescription := "description-1"
scenarios := []struct {
Name string
Endpoint endpoint.Endpoint
Provider AlertProvider
Alert alert.Alert
ExpectedBody string
}{
{
Name: "triggered",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "https://gitlab.com/hlidotbe/text/alerts/notify/gatus/xxxxxxxxxxxxxxxx.json", AuthorizationKey: "12345"}},
Alert: alert.Alert{Description: &firstDescription, FailureThreshold: 3},
ExpectedBody: "{\"title\":\"alert(gatus): endpoint-name\",\"description\":\"An alert for *endpoint-name* has been triggered due to having failed 3 time(s) in a row:\\n\\u003e description-1\\n\\n## Condition results\\n- :white_check_mark: - `[CONNECTED] == true`\\n- :x: - `[STATUS] == 200`\\n\",\"start_time\":\"0001-01-01T00:00:00Z\",\"service\":\"endpoint-name\",\"monitoring_tool\":\"gatus\",\"hosts\":\"https://example.org\",\"severity\":\"critical\"}",
},
{
Name: "no-description",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "https://gitlab.com/hlidotbe/text/alerts/notify/gatus/xxxxxxxxxxxxxxxx.json", AuthorizationKey: "12345"}},
Alert: alert.Alert{FailureThreshold: 10},
ExpectedBody: "{\"title\":\"alert(gatus): endpoint-name\",\"description\":\"An alert for *endpoint-name* has been triggered due to having failed 10 time(s) in a row\\n\\n## Condition results\\n- :white_check_mark: - `[CONNECTED] == true`\\n- :x: - `[STATUS] == 200`\\n\",\"start_time\":\"0001-01-01T00:00:00Z\",\"service\":\"endpoint-name\",\"monitoring_tool\":\"gatus\",\"hosts\":\"https://example.org\",\"severity\":\"critical\"}",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
cfg, err := scenario.Provider.GetConfig("", &scenario.Alert)
if err != nil {
t.Error("expected no error, got", err.Error())
}
body := scenario.Provider.buildAlertBody(
cfg,
&scenario.Endpoint,
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: true},
{Condition: "[STATUS] == 200", Success: false},
},
},
false,
)
if strings.TrimSpace(string(body)) != strings.TrimSpace(scenario.ExpectedBody) {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "https://github.com/TwiN/test", AuthorizationKey: "12345"},
},
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "https://github.com/TwiN/test", AuthorizationKey: "12345", Severity: DefaultSeverity, MonitoringTool: DefaultMonitoringTool},
},
{
Name: "provider-with-alert-override",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "https://github.com/TwiN/test", AuthorizationKey: "12345"},
},
InputAlert: alert.Alert{ProviderOverride: map[string]any{"repository-url": "https://github.com/TwiN/alert-test", "authorization-key": "54321", "severity": "info", "monitoring-tool": "not-gatus", "environment-name": "prod", "service": "example"}},
ExpectedOutput: Config{WebhookURL: "https://github.com/TwiN/test", AuthorizationKey: "54321", Severity: "info", MonitoringTool: "not-gatus", EnvironmentName: "prod", Service: "example"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig("", &scenario.InputAlert)
if err != nil && !strings.Contains(err.Error(), "user does not exist") && !strings.Contains(err.Error(), "no such host") {
t.Fatalf("unexpected error: %s", err)
}
if got.WebhookURL != scenario.ExpectedOutput.WebhookURL {
t.Errorf("expected repository URL %s, got %s", scenario.ExpectedOutput.WebhookURL, got.WebhookURL)
}
if got.AuthorizationKey != scenario.ExpectedOutput.AuthorizationKey {
t.Errorf("expected AuthorizationKey %s, got %s", scenario.ExpectedOutput.AuthorizationKey, got.AuthorizationKey)
}
if got.Severity != scenario.ExpectedOutput.Severity {
t.Errorf("expected Severity %s, got %s", scenario.ExpectedOutput.Severity, got.Severity)
}
if got.MonitoringTool != scenario.ExpectedOutput.MonitoringTool {
t.Errorf("expected MonitoringTool %s, got %s", scenario.ExpectedOutput.MonitoringTool, got.MonitoringTool)
}
if got.EnvironmentName != scenario.ExpectedOutput.EnvironmentName {
t.Errorf("expected EnvironmentName %s, got %s", scenario.ExpectedOutput.EnvironmentName, got.EnvironmentName)
}
if got.Service != scenario.ExpectedOutput.Service {
t.Errorf("expected Service %s, got %s", scenario.ExpectedOutput.Service, got.Service)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides("", &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

248
alerting/provider/googlechat/googlechat.go Normal file
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@ -0,0 +1,248 @@
package googlechat
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
var (
ErrWebhookURLNotSet = errors.New("webhook-url not set")
ErrDuplicateGroupOverride = errors.New("duplicate group override")
)
type Config struct {
WebhookURL string `yaml:"webhook-url"`
ClientConfig *client.Config `yaml:"client,omitempty"`
}
func (cfg *Config) Validate() error {
if len(cfg.WebhookURL) == 0 {
return ErrWebhookURLNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if override.ClientConfig != nil {
cfg.ClientConfig = override.ClientConfig
}
if len(override.WebhookURL) > 0 {
cfg.WebhookURL = override.WebhookURL
}
}
// AlertProvider is the configuration necessary for sending an alert using Google chat
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" || len(override.WebhookURL) == 0 {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(ep, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, cfg.WebhookURL, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
response, err := client.GetHTTPClient(cfg.ClientConfig).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
Cards []Cards `json:"cards"`
}
type Cards struct {
Sections []Sections `json:"sections"`
}
type Sections struct {
Widgets []Widgets `json:"widgets"`
}
type Widgets struct {
KeyValue *KeyValue `json:"keyValue,omitempty"`
Buttons []Buttons `json:"buttons,omitempty"`
}
type KeyValue struct {
TopLabel string `json:"topLabel,omitempty"`
Content string `json:"content,omitempty"`
ContentMultiline string `json:"contentMultiline,omitempty"`
BottomLabel string `json:"bottomLabel,omitempty"`
Icon string `json:"icon,omitempty"`
}
type Buttons struct {
TextButton TextButton `json:"textButton"`
}
type TextButton struct {
Text string `json:"text"`
OnClick OnClick `json:"onClick"`
}
type OnClick struct {
OpenLink OpenLink `json:"openLink"`
}
type OpenLink struct {
URL string `json:"url"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message, color string
if resolved {
color = "#36A64F"
message = fmt.Sprintf("<font color='%s'>An alert has been resolved after passing successfully %d time(s) in a row</font>", color, alert.SuccessThreshold)
} else {
color = "#DD0000"
message = fmt.Sprintf("<font color='%s'>An alert has been triggered due to having failed %d time(s) in a row</font>", color, alert.FailureThreshold)
}
var formattedConditionResults string
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "✅"
} else {
prefix = "❌"
}
formattedConditionResults += fmt.Sprintf("%s %s<br>", prefix, conditionResult.Condition)
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = ":: " + alertDescription
}
payload := Body{
Cards: []Cards{
{
Sections: []Sections{
{
Widgets: []Widgets{
{
KeyValue: &KeyValue{
TopLabel: ep.DisplayName(),
Content: message,
ContentMultiline: "true",
BottomLabel: description,
Icon: "BOOKMARK",
},
},
},
},
},
},
},
}
if len(formattedConditionResults) > 0 {
payload.Cards[0].Sections[0].Widgets = append(payload.Cards[0].Sections[0].Widgets, Widgets{
KeyValue: &KeyValue{
TopLabel: "Condition results",
Content: formattedConditionResults,
ContentMultiline: "true",
Icon: "DESCRIPTION",
},
})
}
if ep.Type() == endpoint.TypeHTTP {
// We only include a button targeting the URL if the endpoint is an HTTP endpoint
// If the URL isn't prefixed with https://, Google Chat will just display a blank message aynways.
// See https://github.com/TwiN/gatus/issues/362
payload.Cards[0].Sections[0].Widgets = append(payload.Cards[0].Sections[0].Widgets, Widgets{
Buttons: []Buttons{
{
TextButton: TextButton{
Text: "URL",
OnClick: OnClick{OpenLink: OpenLink{URL: ep.URL}},
},
},
},
})
}
bodyAsJSON, _ := json.Marshal(payload)
return bodyAsJSON
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

305
alerting/provider/googlechat/googlechat_test.go Normal file
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@ -0,0 +1,305 @@
package googlechat
import (
"encoding/json"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{DefaultConfig: Config{WebhookURL: ""}}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
Config: Config{WebhookURL: "http://example.com"},
Group: "",
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
Overrides: []Override{
{
Config: Config{WebhookURL: ""},
Group: "group",
},
},
}
if err := providerWithInvalidOverrideTo.Validate(); err == nil {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Config: Config{WebhookURL: "http://example.com"},
Group: "group",
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name", Group: "endpoint-group"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Endpoint endpoint.Endpoint
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"cards":[{"sections":[{"widgets":[{"keyValue":{"topLabel":"endpoint-name","content":"\u003cfont color='#DD0000'\u003eAn alert has been triggered due to having failed 3 time(s) in a row\u003c/font\u003e","contentMultiline":"true","bottomLabel":":: description-1","icon":"BOOKMARK"}},{"keyValue":{"topLabel":"Condition results","content":"❌ [CONNECTED] == true\u003cbr\u003e❌ [STATUS] == 200\u003cbr\u003e","contentMultiline":"true","icon":"DESCRIPTION"}},{"buttons":[{"textButton":{"text":"URL","onClick":{"openLink":{"url":"https://example.org"}}}}]}]}]}]}`,
},
{
Name: "resolved",
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "https://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: `{"cards":[{"sections":[{"widgets":[{"keyValue":{"topLabel":"endpoint-name","content":"\u003cfont color='#36A64F'\u003eAn alert has been resolved after passing successfully 5 time(s) in a row\u003c/font\u003e","contentMultiline":"true","bottomLabel":":: description-2","icon":"BOOKMARK"}},{"keyValue":{"topLabel":"Condition results","content":"✅ [CONNECTED] == true\u003cbr\u003e✅ [STATUS] == 200\u003cbr\u003e","contentMultiline":"true","icon":"DESCRIPTION"}},{"buttons":[{"textButton":{"text":"URL","onClick":{"openLink":{"url":"https://example.org"}}}}]}]}]}]}`,
},
{
Name: "icmp-should-not-include-url", // See https://github.com/TwiN/gatus/issues/362
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "icmp://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"cards":[{"sections":[{"widgets":[{"keyValue":{"topLabel":"endpoint-name","content":"\u003cfont color='#DD0000'\u003eAn alert has been triggered due to having failed 3 time(s) in a row\u003c/font\u003e","contentMultiline":"true","bottomLabel":":: description-1","icon":"BOOKMARK"}},{"keyValue":{"topLabel":"Condition results","content":"❌ [CONNECTED] == true\u003cbr\u003e❌ [STATUS] == 200\u003cbr\u003e","contentMultiline":"true","icon":"DESCRIPTION"}}]}]}]}`,
},
{
Name: "tcp-should-not-include-url", // See https://github.com/TwiN/gatus/issues/362
Endpoint: endpoint.Endpoint{Name: "endpoint-name", URL: "tcp://example.org"},
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"cards":[{"sections":[{"widgets":[{"keyValue":{"topLabel":"endpoint-name","content":"\u003cfont color='#DD0000'\u003eAn alert has been triggered due to having failed 3 time(s) in a row\u003c/font\u003e","contentMultiline":"true","bottomLabel":":: description-1","icon":"BOOKMARK"}},{"keyValue":{"topLabel":"Condition results","content":"❌ [CONNECTED] == true\u003cbr\u003e❌ [STATUS] == 200\u003cbr\u003e","contentMultiline":"true","icon":"DESCRIPTION"}}]}]}]}`,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
body := scenario.Provider.buildRequestBody(
&scenario.Endpoint,
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://example01.com"},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://group-example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://group-example.com"},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://group-example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"webhook-url": "http://alert-example.com"}},
ExpectedOutput: Config{WebhookURL: "http://alert-example.com"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.WebhookURL != scenario.ExpectedOutput.WebhookURL {
t.Errorf("expected webhook URL to be %s, got %s", scenario.ExpectedOutput.WebhookURL, got.WebhookURL)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

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package gotify
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
const DefaultPriority = 5
var (
ErrServerURLNotSet = errors.New("server URL not set")
ErrTokenNotSet = errors.New("token not set")
)
type Config struct {
ServerURL string `yaml:"server-url"` // URL of the Gotify server
Token string `yaml:"token"` // Token to use when sending a message to the Gotify server
Priority int `yaml:"priority,omitempty"` // Priority of the message. Defaults to DefaultPriority.
Title string `yaml:"title,omitempty"` // Title of the message that will be sent
}
func (cfg *Config) Validate() error {
if cfg.Priority == 0 {
cfg.Priority = DefaultPriority
}
if len(cfg.ServerURL) == 0 {
return ErrServerURLNotSet
}
if len(cfg.Token) == 0 {
return ErrTokenNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.ServerURL) > 0 {
cfg.ServerURL = override.ServerURL
}
if len(override.Token) > 0 {
cfg.Token = override.Token
}
if override.Priority != 0 {
cfg.Priority = override.Priority
}
if len(override.Title) > 0 {
cfg.Title = override.Title
}
}
// AlertProvider is the configuration necessary for sending an alert using Gotify
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, cfg.ServerURL+"/message?token="+cfg.Token, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("failed to send alert to Gotify: %s", string(body))
}
return nil
}
type Body struct {
Message string `json:"message"`
Title string `json:"title"`
Priority int `json:"priority"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message string
if resolved {
message = fmt.Sprintf("An alert for `%s` has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
message = fmt.Sprintf("An alert for `%s` has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
var formattedConditionResults string
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "✓"
} else {
prefix = "✕"
}
formattedConditionResults += fmt.Sprintf("\n%s - %s", prefix, conditionResult.Condition)
}
if len(alert.GetDescription()) > 0 {
message += " with the following description: " + alert.GetDescription()
}
message += formattedConditionResults
title := "Gatus: " + ep.DisplayName()
if cfg.Title != "" {
title = cfg.Title
}
bodyAsJSON, _ := json.Marshal(Body{
Message: message,
Title: title,
Priority: cfg.Priority,
})
return bodyAsJSON
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

163
alerting/provider/gotify/gotify_test.go Normal file
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package gotify
import (
"encoding/json"
"fmt"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/config/endpoint"
)
func TestAlertProvider_Validate(t *testing.T) {
scenarios := []struct {
name string
provider AlertProvider
expected bool
}{
{
name: "valid",
provider: AlertProvider{DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: "faketoken"}},
expected: true,
},
{
name: "invalid-server-url",
provider: AlertProvider{DefaultConfig: Config{ServerURL: "", Token: "faketoken"}},
expected: false,
},
{
name: "invalid-app-token",
provider: AlertProvider{DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: ""}},
expected: false,
},
{
name: "no-priority-should-use-default-value",
provider: AlertProvider{DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: "faketoken"}},
expected: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.name, func(t *testing.T) {
if err := scenario.provider.Validate(); (err == nil) != scenario.expected {
t.Errorf("expected: %t, got: %t", scenario.expected, err == nil)
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
var (
description = "custom-description"
//title = "custom-title"
endpointName = "custom-endpoint"
)
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: "faketoken"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: fmt.Sprintf("{\"message\":\"An alert for `%s` has been triggered due to having failed 3 time(s) in a row with the following description: %s\\n✕ - [CONNECTED] == true\\n✕ - [STATUS] == 200\",\"title\":\"Gatus: custom-endpoint\",\"priority\":0}", endpointName, description),
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: "faketoken"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: fmt.Sprintf("{\"message\":\"An alert for `%s` has been resolved after passing successfully 5 time(s) in a row with the following description: %s\\n✓ - [CONNECTED] == true\\n✓ - [STATUS] == 200\",\"title\":\"Gatus: custom-endpoint\",\"priority\":0}", endpointName, description),
},
{
Name: "custom-title",
Provider: AlertProvider{DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: "faketoken", Title: "custom-title"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: fmt.Sprintf("{\"message\":\"An alert for `%s` has been triggered due to having failed 3 time(s) in a row with the following description: %s\\n✕ - [CONNECTED] == true\\n✕ - [STATUS] == 200\",\"title\":\"custom-title\",\"priority\":0}", endpointName, description),
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
body := scenario.Provider.buildRequestBody(
&scenario.Provider.DefaultConfig,
&endpoint.Endpoint{Name: endpointName},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
provider := AlertProvider{DefaultAlert: &alert.Alert{}}
if provider.GetDefaultAlert() != provider.DefaultAlert {
t.Error("expected default alert to be returned")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-should-default",
Provider: AlertProvider{
DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: "12345"},
},
InputAlert: alert.Alert{},
ExpectedOutput: Config{ServerURL: "https://gotify.example.com", Token: "12345", Priority: DefaultPriority},
},
{
Name: "provider-with-alert-override",
Provider: AlertProvider{
DefaultConfig: Config{ServerURL: "https://gotify.example.com", Token: "12345"},
},
InputAlert: alert.Alert{ProviderOverride: map[string]any{"server-url": "https://gotify.group-example.com", "token": "54321", "title": "alert-title", "priority": 3}},
ExpectedOutput: Config{ServerURL: "https://gotify.group-example.com", Token: "54321", Title: "alert-title", Priority: 3},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig("", &scenario.InputAlert)
if err != nil {
t.Error("expected no error, got:", err.Error())
}
if got.ServerURL != scenario.ExpectedOutput.ServerURL {
t.Errorf("expected server URL to be %s, got %s", scenario.ExpectedOutput.ServerURL, got.ServerURL)
}
if got.Token != scenario.ExpectedOutput.Token {
t.Errorf("expected token to be %s, got %s", scenario.ExpectedOutput.Token, got.Token)
}
if got.Title != scenario.ExpectedOutput.Title {
t.Errorf("expected title to be %s, got %s", scenario.ExpectedOutput.Title, got.Title)
}
if got.Priority != scenario.ExpectedOutput.Priority {
t.Errorf("expected priority to be %d, got %d", scenario.ExpectedOutput.Priority, got.Priority)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides("", &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

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alerting/provider/incidentio/incidentio.go Normal file
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package incidentio
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/logr"
"gopkg.in/yaml.v3"
)
const (
restAPIUrl = "https://api.incident.io/v2/alert_events/http/"
)
var (
ErrURLNotSet = errors.New("url not set")
ErrURLNotPrefixedWithRestAPIURL = fmt.Errorf("url must be prefixed with %s", restAPIUrl)
ErrDuplicateGroupOverride = errors.New("duplicate group override")
ErrAuthTokenNotSet = errors.New("auth-token not set")
)
type Config struct {
URL string `yaml:"url,omitempty"`
AuthToken string `yaml:"auth-token,omitempty"`
SourceURL string `yaml:"source-url,omitempty"`
Metadata map[string]interface{} `yaml:"metadata,omitempty"`
}
func (cfg *Config) Validate() error {
if len(cfg.URL) == 0 {
return ErrURLNotSet
}
if !strings.HasPrefix(cfg.URL, restAPIUrl) {
return ErrURLNotPrefixedWithRestAPIURL
}
if len(cfg.AuthToken) == 0 {
return ErrAuthTokenNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.URL) > 0 {
cfg.URL = override.URL
}
if len(override.AuthToken) > 0 {
cfg.AuthToken = override.AuthToken
}
if len(override.SourceURL) > 0 {
cfg.SourceURL = override.SourceURL
}
if len(override.Metadata) > 0 {
cfg.Metadata = override.Metadata
}
}
// AlertProvider is the configuration necessary for sending an alert using incident.io
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
req, err := http.NewRequest(http.MethodPost, cfg.URL, buffer)
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", "Bearer "+cfg.AuthToken)
response, err := client.GetHTTPClient(nil).Do(req)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
incidentioResponse := Response{}
err = json.NewDecoder(response.Body).Decode(&incidentioResponse)
if err != nil {
// Silently fail. We don't want to create tons of alerts just because we failed to parse the body.
logr.Errorf("[incidentio.Send] Ran into error decoding pagerduty response: %s", err.Error())
}
alert.ResolveKey = incidentioResponse.DeduplicationKey
return err
}
type Body struct {
AlertSourceConfigID string `json:"alert_source_config_id"`
Status string `json:"status"`
Title string `json:"title"`
DeduplicationKey string `json:"deduplication_key,omitempty"`
Description string `json:"description,omitempty"`
SourceURL string `json:"source_url,omitempty"`
Metadata map[string]interface{} `json:"metadata,omitempty"`
}
type Response struct {
DeduplicationKey string `json:"deduplication_key"`
}
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message, formattedConditionResults, status string
if resolved {
message = "An alert has been resolved after passing successfully " + strconv.Itoa(alert.SuccessThreshold) + " time(s) in a row"
status = "resolved"
} else {
message = "An alert has been triggered due to having failed " + strconv.Itoa(alert.FailureThreshold) + " time(s) in a row"
status = "firing"
}
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "🟢"
} else {
prefix = "🔴"
}
// No need for \n since incident.io trims it anyways.
formattedConditionResults += fmt.Sprintf(" %s %s ", prefix, conditionResult.Condition)
}
if len(alert.GetDescription()) > 0 {
message += " with the following description: " + alert.GetDescription()
}
message += fmt.Sprintf(" and the following conditions: %s ", formattedConditionResults)
var body []byte
alertSourceID := strings.TrimPrefix(cfg.URL, restAPIUrl)
body, _ = json.Marshal(Body{
AlertSourceConfigID: alertSourceID,
Title: "Gatus: " + ep.DisplayName(),
Status: status,
DeduplicationKey: alert.ResolveKey,
Description: message,
SourceURL: cfg.SourceURL,
Metadata: cfg.Metadata,
})
fmt.Printf("%v", string(body))
return body
}
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

390
alerting/provider/incidentio/incidentio_test.go Normal file
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package incidentio
import (
"bytes"
"encoding/json"
"io"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
scenarios := []struct {
name string
provider AlertProvider
expected bool
}{
{
name: "valid",
provider: AlertProvider{
DefaultConfig: Config{
URL: "https://api.incident.io/v2/alert_events/http/some-id",
AuthToken: "some-token",
},
},
expected: true,
},
{
name: "invalid-url",
provider: AlertProvider{
DefaultConfig: Config{
URL: "id-without-rest-api-url-as-prefix",
AuthToken: "some-token",
},
},
expected: false,
},
{
name: "invalid-missing-auth-token",
provider: AlertProvider{
DefaultConfig: Config{
URL: "some-id",
},
},
expected: false,
},
{
name: "invalid-missing-alert-source-config-id",
provider: AlertProvider{
DefaultConfig: Config{
AuthToken: "some-token",
},
},
expected: false,
},
{
name: "valid-override",
provider: AlertProvider{
DefaultConfig: Config{
AuthToken: "some-token",
URL: "https://api.incident.io/v2/alert_events/http/some-id",
},
Overrides: []Override{{Group: "core", Config: Config{URL: "https://api.incident.io/v2/alert_events/http/another-id"}}},
},
expected: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.name, func(t *testing.T) {
err := scenario.provider.Validate()
if scenario.expected && err != nil {
t.Error("expected no error, got", err.Error())
}
if !scenario.expected && err == nil {
t.Error("expected error, got none")
}
})
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
restAPIUrl := "https://api.incident.io/v2/alert_events/http/"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{
URL: restAPIUrl + "some-id",
AuthToken: "some-token",
}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
var b bytes.Buffer
response := Response{DeduplicationKey: "some-key"}
json.NewEncoder(&b).Encode(response)
reader := io.NopCloser(&b)
return &http.Response{StatusCode: http.StatusAccepted, Body: reader}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{
URL: restAPIUrl + "some-id",
AuthToken: "some-token",
}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{
URL: restAPIUrl + "some-id",
AuthToken: "some-token",
}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
var b bytes.Buffer
response := Response{DeduplicationKey: "some-key"}
json.NewEncoder(&b).Encode(response)
reader := io.NopCloser(&b)
return &http.Response{StatusCode: http.StatusAccepted, Body: reader}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_BuildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
restAPIUrl := "https://api.incident.io/v2/alert_events/http/"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{URL: restAPIUrl + "some-id", AuthToken: "some-token"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"alert_source_config_id":"some-id","status":"firing","title":"Gatus: endpoint-name","description":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1 and the following conditions: 🔴 [CONNECTED] == true 🔴 [STATUS] == 200 "}`,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{URL: restAPIUrl + "some-id", AuthToken: "some-token"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: `{"alert_source_config_id":"some-id","status":"resolved","title":"Gatus: endpoint-name","description":"An alert has been resolved after passing successfully 5 time(s) in a row with the following description: description-2 and the following conditions: 🟢 [CONNECTED] == true 🟢 [STATUS] == 200 "}`,
},
{
Name: "resolved-with-metadata-source-url",
Provider: AlertProvider{DefaultConfig: Config{URL: restAPIUrl + "some-id", AuthToken: "some-token", Metadata: map[string]interface{}{"service": "some-service", "team": "very-core"}, SourceURL: "some-source-url"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: `{"alert_source_config_id":"some-id","status":"resolved","title":"Gatus: endpoint-name","description":"An alert has been resolved after passing successfully 5 time(s) in a row with the following description: description-2 and the following conditions: 🟢 [CONNECTED] == true 🟢 [STATUS] == 200 ","source_url":"some-source-url","metadata":{"service":"some-service","team":"very-core"}}`,
},
{
Name: "group-override",
Provider: AlertProvider{DefaultConfig: Config{URL: restAPIUrl + "some-id", AuthToken: "some-token"}, Overrides: []Override{{Group: "g", Config: Config{URL: restAPIUrl + "different-id", AuthToken: "some-token"}}}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"alert_source_config_id":"different-id","status":"firing","title":"Gatus: endpoint-name","description":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1 and the following conditions: 🔴 [CONNECTED] == true 🔴 [STATUS] == 200 "}`,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
cfg, err := scenario.Provider.GetConfig("g", &scenario.Alert)
if err != nil {
t.Error("expected no error, got", err.Error())
}
body := scenario.Provider.buildRequestBody(
cfg,
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "https://api.incident.io/v2/alert_events/http/diff-id"},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "https://api.incident.io/v2/alert_events/http/diff-id", AuthToken: "some-token"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://api.incident.io/v2/alert_events/http/diff-id", AuthToken: "some-token"},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "https://api.incident.io/v2/alert_events/http/diff-id", AuthToken: "some-token"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"url": "https://api.incident.io/v2/alert_events/http/another-id"}},
ExpectedOutput: Config{URL: "https://api.incident.io/v2/alert_events/http/another-id", AuthToken: "some-token"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.URL != scenario.ExpectedOutput.URL {
t.Errorf("expected alert source config to be %s, got %s", scenario.ExpectedOutput.URL, got.URL)
}
if got.AuthToken != scenario.ExpectedOutput.AuthToken {
t.Errorf("expected alert auth token to be %s, got %s", scenario.ExpectedOutput.AuthToken, got.AuthToken)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
Config: Config{URL: "https://api.incident.io/v2/alert_events/http/some-id", AuthToken: "some-token"},
Group: "",
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
Overrides: []Override{
{
Config: Config{URL: "", AuthToken: "some-token"},
Group: "group",
},
},
}
if err := providerWithInvalidOverrideTo.Validate(); err == nil {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{URL: "https://api.incident.io/v2/alert_events/http/nice-id", AuthToken: "some-token"},
Overrides: []Override{
{
Config: Config{URL: "https://api.incident.io/v2/alert_events/http/very-good-id", AuthToken: "some-token"},
Group: "group",
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}

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alerting/provider/jetbrainsspace/jetbrainsspace.go Normal file
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package jetbrainsspace
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
var (
ErrProjectNotSet = errors.New("project not set")
ErrChannelIDNotSet = errors.New("channel-id not set")
ErrTokenNotSet = errors.New("token not set")
ErrDuplicateGroupOverride = errors.New("duplicate group override")
)
type Config struct {
Project string `yaml:"project"` // Project name
ChannelID string `yaml:"channel-id"` // Chat Channel ID
Token string `yaml:"token"` // Bearer Token
}
func (cfg *Config) Validate() error {
if len(cfg.Project) == 0 {
return ErrProjectNotSet
}
if len(cfg.ChannelID) == 0 {
return ErrChannelIDNotSet
}
if len(cfg.Token) == 0 {
return ErrTokenNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.Project) > 0 {
cfg.Project = override.Project
}
if len(override.ChannelID) > 0 {
cfg.ChannelID = override.ChannelID
}
if len(override.Token) > 0 {
cfg.Token = override.Token
}
}
// AlertProvider is the configuration necessary for sending an alert using JetBrains Space
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
url := fmt.Sprintf("https://%s.jetbrains.space/api/http/chats/messages/send-message", cfg.Project)
request, err := http.NewRequest(http.MethodPost, url, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Authorization", "Bearer "+cfg.Token)
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
Channel string `json:"channel"`
Content Content `json:"content"`
}
type Content struct {
ClassName string `json:"className"`
Style string `json:"style"`
Sections []Section `json:"sections,omitempty"`
}
type Section struct {
ClassName string `json:"className"`
Elements []Element `json:"elements"`
Header string `json:"header"`
}
type Element struct {
ClassName string `json:"className"`
Accessory Accessory `json:"accessory"`
Style string `json:"style"`
Size string `json:"size"`
Content string `json:"content"`
}
type Accessory struct {
ClassName string `json:"className"`
Icon Icon `json:"icon"`
Style string `json:"style"`
}
type Icon struct {
Icon string `json:"icon"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
body := Body{
Channel: "id:" + cfg.ChannelID,
Content: Content{
ClassName: "ChatMessage.Block",
Sections: []Section{{
ClassName: "MessageSection",
Elements: []Element{},
}},
},
}
if resolved {
body.Content.Style = "SUCCESS"
body.Content.Sections[0].Header = fmt.Sprintf("An alert for *%s* has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
body.Content.Style = "WARNING"
body.Content.Sections[0].Header = fmt.Sprintf("An alert for *%s* has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
for _, conditionResult := range result.ConditionResults {
icon := "warning"
style := "WARNING"
if conditionResult.Success {
icon = "success"
style = "SUCCESS"
}
body.Content.Sections[0].Elements = append(body.Content.Sections[0].Elements, Element{
ClassName: "MessageText",
Accessory: Accessory{
ClassName: "MessageIcon",
Icon: Icon{Icon: icon},
Style: style,
},
Style: style,
Size: "REGULAR",
Content: conditionResult.Condition,
})
}
bodyAsJSON, _ := json.Marshal(body)
return bodyAsJSON
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

318
alerting/provider/jetbrainsspace/jetbrainsspace_test.go Normal file
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package jetbrainsspace
import (
"encoding/json"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{DefaultConfig: Config{Project: ""}}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{DefaultConfig: Config{Project: "foo", ChannelID: "bar", Token: "baz"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
DefaultConfig: Config{Project: "foobar"},
Overrides: []Override{
{
Config: Config{ChannelID: "http://example.com"},
Group: "",
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
DefaultConfig: Config{Project: "foobar"},
Overrides: []Override{
{
Config: Config{ChannelID: ""},
Group: "group",
},
},
}
if err := providerWithInvalidOverrideTo.Validate(); err == nil {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{
Project: "foo",
ChannelID: "bar",
Token: "baz",
},
Overrides: []Override{
{
Config: Config{ChannelID: "foobar"},
Group: "group",
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project", Token: "token"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project", Token: "token"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project", Token: "token"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project", Token: "token"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Endpoint endpoint.Endpoint
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project"}},
Endpoint: endpoint.Endpoint{Name: "name"},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"channel":"id:1","content":{"className":"ChatMessage.Block","style":"WARNING","sections":[{"className":"MessageSection","elements":[{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"warning"},"style":"WARNING"},"style":"WARNING","size":"REGULAR","content":"[CONNECTED] == true"},{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"warning"},"style":"WARNING"},"style":"WARNING","size":"REGULAR","content":"[STATUS] == 200"}],"header":"An alert for *name* has been triggered due to having failed 3 time(s) in a row"}]}}`,
},
{
Name: "triggered-with-group",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project"}},
Endpoint: endpoint.Endpoint{Name: "name", Group: "group"},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"channel":"id:1","content":{"className":"ChatMessage.Block","style":"WARNING","sections":[{"className":"MessageSection","elements":[{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"warning"},"style":"WARNING"},"style":"WARNING","size":"REGULAR","content":"[CONNECTED] == true"},{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"warning"},"style":"WARNING"},"style":"WARNING","size":"REGULAR","content":"[STATUS] == 200"}],"header":"An alert for *group/name* has been triggered due to having failed 3 time(s) in a row"}]}}`,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project"}},
Endpoint: endpoint.Endpoint{Name: "name"},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: `{"channel":"id:1","content":{"className":"ChatMessage.Block","style":"SUCCESS","sections":[{"className":"MessageSection","elements":[{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"success"},"style":"SUCCESS"},"style":"SUCCESS","size":"REGULAR","content":"[CONNECTED] == true"},{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"success"},"style":"SUCCESS"},"style":"SUCCESS","size":"REGULAR","content":"[STATUS] == 200"}],"header":"An alert for *name* has been resolved after passing successfully 5 time(s) in a row"}]}}`,
},
{
Name: "resolved-with-group",
Provider: AlertProvider{DefaultConfig: Config{ChannelID: "1", Project: "project"}},
Endpoint: endpoint.Endpoint{Name: "name", Group: "group"},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: `{"channel":"id:1","content":{"className":"ChatMessage.Block","style":"SUCCESS","sections":[{"className":"MessageSection","elements":[{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"success"},"style":"SUCCESS"},"style":"SUCCESS","size":"REGULAR","content":"[CONNECTED] == true"},{"className":"MessageText","accessory":{"className":"MessageIcon","icon":{"icon":"success"},"style":"SUCCESS"},"style":"SUCCESS","size":"REGULAR","content":"[STATUS] == 200"}],"header":"An alert for *group/name* has been resolved after passing successfully 5 time(s) in a row"}]}}`,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
body := scenario.Provider.buildRequestBody(
&scenario.Provider.DefaultConfig,
&scenario.Endpoint,
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{ChannelID: "default", Project: "project", Token: "token"},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{ChannelID: "default", Project: "project", Token: "token"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{ChannelID: "default", Project: "project", Token: "token"},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{ChannelID: "default", Project: "project", Token: "token"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{ChannelID: "default", Project: "project", Token: "token"},
Overrides: []Override{
{
Group: "group",
Config: Config{ChannelID: "group-channel"},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{ChannelID: "default", Project: "project", Token: "token"},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{ChannelID: "default", Project: "project", Token: "token"},
Overrides: []Override{
{
Group: "group",
Config: Config{ChannelID: "group-channel"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{ChannelID: "group-channel", Project: "project", Token: "token"},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{ChannelID: "default", Project: "project", Token: "token"},
Overrides: []Override{
{
Group: "group",
Config: Config{ChannelID: "group-channel"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"channel-id": "alert-channel", "project": "alert-project", "token": "alert-token"}},
ExpectedOutput: Config{ChannelID: "alert-channel", Project: "alert-project", Token: "alert-token"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.ChannelID != scenario.ExpectedOutput.ChannelID {
t.Errorf("expected %s, got %s", scenario.ExpectedOutput.ChannelID, got.ChannelID)
}
if got.Project != scenario.ExpectedOutput.Project {
t.Errorf("expected %s, got %s", scenario.ExpectedOutput.Project, got.Project)
}
if got.Token != scenario.ExpectedOutput.Token {
t.Errorf("expected %s, got %s", scenario.ExpectedOutput.Token, got.Token)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

247
alerting/provider/matrix/matrix.go Normal file
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package matrix
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"math/rand"
"net/http"
"net/url"
"time"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
const defaultServerURL = "https://matrix-client.matrix.org"
var (
ErrAccessTokenNotSet = errors.New("access-token not set")
ErrInternalRoomID = errors.New("internal-room-id not set")
ErrDuplicateGroupOverride = errors.New("duplicate group override")
)
type Config struct {
// ServerURL is the custom homeserver to use (optional)
ServerURL string `yaml:"server-url"`
// AccessToken is the bot user's access token to send messages
AccessToken string `yaml:"access-token"`
// InternalRoomID is the room that the bot user has permissions to send messages to
InternalRoomID string `yaml:"internal-room-id"`
}
func (cfg *Config) Validate() error {
if len(cfg.ServerURL) == 0 {
cfg.ServerURL = defaultServerURL
}
if len(cfg.AccessToken) == 0 {
return ErrAccessTokenNotSet
}
if len(cfg.InternalRoomID) == 0 {
return ErrInternalRoomID
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.ServerURL) > 0 {
cfg.ServerURL = override.ServerURL
}
if len(override.AccessToken) > 0 {
cfg.AccessToken = override.AccessToken
}
if len(override.InternalRoomID) > 0 {
cfg.InternalRoomID = override.InternalRoomID
}
}
// AlertProvider is the configuration necessary for sending an alert using Matrix
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" || len(override.AccessToken) == 0 || len(override.InternalRoomID) == 0 {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(ep, alert, result, resolved))
// The Matrix endpoint requires a unique transaction ID for each event sent
txnId := randStringBytes(24)
request, err := http.NewRequest(
http.MethodPut,
fmt.Sprintf("%s/_matrix/client/v3/rooms/%s/send/m.room.message/%s?access_token=%s",
cfg.ServerURL,
url.PathEscape(cfg.InternalRoomID),
txnId,
url.QueryEscape(cfg.AccessToken),
),
buffer,
)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
MsgType string `json:"msgtype"`
Format string `json:"format"`
Body string `json:"body"`
FormattedBody string `json:"formatted_body"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
body, _ := json.Marshal(Body{
MsgType: "m.text",
Format: "org.matrix.custom.html",
Body: buildPlaintextMessageBody(ep, alert, result, resolved),
FormattedBody: buildHTMLMessageBody(ep, alert, result, resolved),
})
return body
}
// buildPlaintextMessageBody builds the message body in plaintext to include in request
func buildPlaintextMessageBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) string {
var message string
if resolved {
message = fmt.Sprintf("An alert for `%s` has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
message = fmt.Sprintf("An alert for `%s` has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
var formattedConditionResults string
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "✓"
} else {
prefix = "✕"
}
formattedConditionResults += fmt.Sprintf("\n%s - %s", prefix, conditionResult.Condition)
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = "\n" + alertDescription
}
return fmt.Sprintf("%s%s\n%s", message, description, formattedConditionResults)
}
// buildHTMLMessageBody builds the message body in HTML to include in request
func buildHTMLMessageBody(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) string {
var message string
if resolved {
message = fmt.Sprintf("An alert for <code>%s</code> has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
message = fmt.Sprintf("An alert for <code>%s</code> has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
var formattedConditionResults string
if len(result.ConditionResults) > 0 {
formattedConditionResults = "\n<h5>Condition results</h5><ul>"
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "✅"
} else {
prefix = "❌"
}
formattedConditionResults += fmt.Sprintf("<li>%s - <code>%s</code></li>", prefix, conditionResult.Condition)
}
formattedConditionResults += "</ul>"
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = fmt.Sprintf("\n<blockquote>%s</blockquote>", alertDescription)
}
return fmt.Sprintf("<h3>%s</h3>%s%s", message, description, formattedConditionResults)
}
func randStringBytes(n int) string {
// All the compatible characters to use in a transaction ID
const availableCharacterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
b := make([]byte, n)
rand.Seed(time.Now().UnixNano())
for i := range b {
b[i] = availableCharacterBytes[rand.Intn(len(availableCharacterBytes))]
}
return string(b)
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

387
alerting/provider/matrix/matrix_test.go Normal file
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package matrix
import (
"encoding/json"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{
DefaultConfig: Config{
AccessToken: "",
InternalRoomID: "",
},
}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{
DefaultConfig: Config{
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
validProviderWithHomeserver := AlertProvider{
DefaultConfig: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
}
if err := validProviderWithHomeserver.Validate(); err != nil {
t.Error("provider with homeserver should've been valid")
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
Group: "",
Config: Config{
AccessToken: "",
InternalRoomID: "",
},
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideTo := AlertProvider{
Overrides: []Override{
{
Group: "group",
Config: Config{
AccessToken: "",
InternalRoomID: "",
},
},
},
}
if err := providerWithInvalidOverrideTo.Validate(); err == nil {
t.Error("provider integration key shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
Overrides: []Override{
{
Group: "group",
Config: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered-with-bad-config",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{AccessToken: "1", InternalRoomID: "!a:example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{AccessToken: "1", InternalRoomID: "!a:example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{AccessToken: "1", InternalRoomID: "!a:example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{AccessToken: "1", InternalRoomID: "!a:example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: "{\"msgtype\":\"m.text\",\"format\":\"org.matrix.custom.html\",\"body\":\"An alert for `endpoint-name` has been triggered due to having failed 3 time(s) in a row\\ndescription-1\\n\\n✕ - [CONNECTED] == true\\n✕ - [STATUS] == 200\",\"formatted_body\":\"\\u003ch3\\u003eAn alert for \\u003ccode\\u003eendpoint-name\\u003c/code\\u003e has been triggered due to having failed 3 time(s) in a row\\u003c/h3\\u003e\\n\\u003cblockquote\\u003edescription-1\\u003c/blockquote\\u003e\\n\\u003ch5\\u003eCondition results\\u003c/h5\\u003e\\u003cul\\u003e\\u003cli\\u003e❌ - \\u003ccode\\u003e[CONNECTED] == true\\u003c/code\\u003e\\u003c/li\\u003e\\u003cli\\u003e❌ - \\u003ccode\\u003e[STATUS] == 200\\u003c/code\\u003e\\u003c/li\\u003e\\u003c/ul\\u003e\"}",
},
{
Name: "resolved",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: "{\"msgtype\":\"m.text\",\"format\":\"org.matrix.custom.html\",\"body\":\"An alert for `endpoint-name` has been resolved after passing successfully 5 time(s) in a row\\ndescription-2\\n\\n✓ - [CONNECTED] == true\\n✓ - [STATUS] == 200\",\"formatted_body\":\"\\u003ch3\\u003eAn alert for \\u003ccode\\u003eendpoint-name\\u003c/code\\u003e has been resolved after passing successfully 5 time(s) in a row\\u003c/h3\\u003e\\n\\u003cblockquote\\u003edescription-2\\u003c/blockquote\\u003e\\n\\u003ch5\\u003eCondition results\\u003c/h5\\u003e\\u003cul\\u003e\\u003cli\\u003e✅ - \\u003ccode\\u003e[CONNECTED] == true\\u003c/code\\u003e\\u003c/li\\u003e\\u003cli\\u003e✅ - \\u003ccode\\u003e[STATUS] == 200\\u003c/code\\u003e\\u003c/li\\u003e\\u003c/ul\\u003e\"}",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
body := scenario.Provider.buildRequestBody(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
Overrides: []Override{
{
Group: "group",
Config: Config{
ServerURL: "https://group-example.com",
AccessToken: "12",
InternalRoomID: "!a:group-example.com",
},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
Overrides: []Override{
{
Group: "group",
Config: Config{
ServerURL: "https://group-example.com",
AccessToken: "12",
InternalRoomID: "!a:group-example.com",
},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{
ServerURL: "https://group-example.com",
AccessToken: "12",
InternalRoomID: "!a:group-example.com",
},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{
ServerURL: "https://example.com",
AccessToken: "1",
InternalRoomID: "!a:example.com",
},
Overrides: []Override{
{
Group: "group",
Config: Config{
ServerURL: "https://group-example.com",
AccessToken: "12",
InternalRoomID: "!a:example01.com",
},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"server-url": "https://alert-example.com", "access-token": "123", "internal-room-id": "!a:alert-example.com"}},
ExpectedOutput: Config{
ServerURL: "https://alert-example.com",
AccessToken: "123",
InternalRoomID: "!a:alert-example.com",
},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
outputConfig, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Errorf("expected no error, got %v", err)
}
if outputConfig.ServerURL != scenario.ExpectedOutput.ServerURL {
t.Errorf("expected ServerURL to be %s, got %s", scenario.ExpectedOutput.ServerURL, outputConfig.ServerURL)
}
if outputConfig.AccessToken != scenario.ExpectedOutput.AccessToken {
t.Errorf("expected AccessToken to be %s, got %s", scenario.ExpectedOutput.AccessToken, outputConfig.AccessToken)
}
if outputConfig.InternalRoomID != scenario.ExpectedOutput.InternalRoomID {
t.Errorf("expected InternalRoomID to be %s, got %s", scenario.ExpectedOutput.InternalRoomID, outputConfig.InternalRoomID)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

211
alerting/provider/mattermost/mattermost.go Normal file
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package mattermost
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
var (
ErrWebhookURLNotSet = errors.New("webhook URL not set")
ErrDuplicateGroupOverride = errors.New("duplicate group override")
)
type Config struct {
WebhookURL string `yaml:"webhook-url"`
Channel string `yaml:"channel,omitempty"`
ClientConfig *client.Config `yaml:"client,omitempty"`
}
func (cfg *Config) Validate() error {
if len(cfg.WebhookURL) == 0 {
return ErrWebhookURLNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if override.ClientConfig != nil {
cfg.ClientConfig = override.ClientConfig
}
if len(override.WebhookURL) > 0 {
cfg.WebhookURL = override.WebhookURL
}
if len(override.Channel) > 0 {
cfg.Channel = override.Channel
}
}
// AlertProvider is the configuration necessary for sending an alert using Mattermost
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
if provider.Overrides != nil {
registeredGroups := make(map[string]bool)
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" || len(override.WebhookURL) == 0 {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer([]byte(provider.buildRequestBody(cfg, ep, alert, result, resolved)))
request, err := http.NewRequest(http.MethodPost, cfg.WebhookURL, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
response, err := client.GetHTTPClient(cfg.ClientConfig).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
Channel string `json:"channel,omitempty"` // Optional channel override
Text string `json:"text"`
Username string `json:"username"`
IconURL string `json:"icon_url"`
Attachments []Attachment `json:"attachments"`
}
type Attachment struct {
Title string `json:"title"`
Fallback string `json:"fallback"`
Text string `json:"text"`
Short bool `json:"short"`
Color string `json:"color"`
Fields []Field `json:"fields"`
}
type Field struct {
Title string `json:"title"`
Value string `json:"value"`
Short bool `json:"short"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message, color string
if resolved {
message = fmt.Sprintf("An alert for *%s* has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
color = "#36A64F"
} else {
message = fmt.Sprintf("An alert for *%s* has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
color = "#DD0000"
}
var formattedConditionResults string
if len(result.ConditionResults) > 0 {
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = ":white_check_mark:"
} else {
prefix = ":x:"
}
formattedConditionResults += fmt.Sprintf("%s - `%s`\n", prefix, conditionResult.Condition)
}
}
var description string
if alertDescription := alert.GetDescription(); len(alertDescription) > 0 {
description = ":\n> " + alertDescription
}
body := Body{
Channel: cfg.Channel,
Text: "",
Username: "gatus",
IconURL: "https://raw.githubusercontent.com/TwiN/gatus/master/.github/assets/logo.png",
Attachments: []Attachment{
{
Title: ":helmet_with_white_cross: Gatus",
Fallback: "Gatus - " + message,
Text: message + description,
Short: false,
Color: color,
},
},
}
if len(formattedConditionResults) > 0 {
body.Attachments[0].Fields = append(body.Attachments[0].Fields, Field{
Title: "Condition results",
Value: formattedConditionResults,
Short: false,
})
}
bodyAsJSON, _ := json.Marshal(body)
return bodyAsJSON
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

287
alerting/provider/mattermost/mattermost_test.go Normal file
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package mattermost
import (
"encoding/json"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{DefaultConfig: Config{WebhookURL: ""}}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_ValidateWithOverride(t *testing.T) {
providerWithInvalidOverrideGroup := AlertProvider{
Overrides: []Override{
{
Config: Config{WebhookURL: "http://example.com"},
Group: "",
},
},
}
if err := providerWithInvalidOverrideGroup.Validate(); err == nil {
t.Error("provider Group shouldn't have been valid")
}
providerWithInvalidOverrideWebHookUrl := AlertProvider{
Overrides: []Override{
{
Config: Config{WebhookURL: ""},
Group: "group",
},
},
}
if err := providerWithInvalidOverrideWebHookUrl.Validate(); err == nil {
t.Error("provider WebHookURL shouldn't have been valid")
}
providerWithValidOverride := AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Config: Config{WebhookURL: "http://example.com"},
Group: "group",
},
},
}
if err := providerWithValidOverride.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{WebhookURL: "http://example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: "{\"text\":\"\",\"username\":\"gatus\",\"icon_url\":\"https://raw.githubusercontent.com/TwiN/gatus/master/.github/assets/logo.png\",\"attachments\":[{\"title\":\":helmet_with_white_cross: Gatus\",\"fallback\":\"Gatus - An alert for *endpoint-name* has been triggered due to having failed 3 time(s) in a row\",\"text\":\"An alert for *endpoint-name* has been triggered due to having failed 3 time(s) in a row:\\n\\u003e description-1\",\"short\":false,\"color\":\"#DD0000\",\"fields\":[{\"title\":\"Condition results\",\"value\":\":x: - `[CONNECTED] == true`\\n:x: - `[STATUS] == 200`\\n\",\"short\":false}]}]}",
},
{
Name: "resolved",
Provider: AlertProvider{},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: "{\"text\":\"\",\"username\":\"gatus\",\"icon_url\":\"https://raw.githubusercontent.com/TwiN/gatus/master/.github/assets/logo.png\",\"attachments\":[{\"title\":\":helmet_with_white_cross: Gatus\",\"fallback\":\"Gatus - An alert for *endpoint-name* has been resolved after passing successfully 5 time(s) in a row\",\"text\":\"An alert for *endpoint-name* has been resolved after passing successfully 5 time(s) in a row:\\n\\u003e description-2\",\"short\":false,\"color\":\"#36A64F\",\"fields\":[{\"title\":\"Condition results\",\"value\":\":white_check_mark: - `[CONNECTED] == true`\\n:white_check_mark: - `[STATUS] == 200`\\n\",\"short\":false}]}]}",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
body := scenario.Provider.buildRequestBody(
&scenario.Provider.DefaultConfig,
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://example01.com"},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://example.com"},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://group-example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{WebhookURL: "http://group-example.com"},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{WebhookURL: "http://example.com"},
Overrides: []Override{
{
Group: "group",
Config: Config{WebhookURL: "http://group-example.com"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"webhook-url": "http://alert-example.com"}},
ExpectedOutput: Config{WebhookURL: "http://alert-example.com"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.WebhookURL != scenario.ExpectedOutput.WebhookURL {
t.Errorf("expected webhook URL to be %s, got %s", scenario.ExpectedOutput.WebhookURL, got.WebhookURL)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

142
alerting/provider/messagebird/messagebird.go Normal file
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package messagebird
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
const restAPIURL = "https://rest.messagebird.com/messages"
var (
ErrorAccessKeyNotSet = errors.New("access-key not set")
ErrorOriginatorNotSet = errors.New("originator not set")
ErrorRecipientsNotSet = errors.New("recipients not set")
)
type Config struct {
AccessKey string `yaml:"access-key"`
Originator string `yaml:"originator"`
Recipients string `yaml:"recipients"`
}
func (cfg *Config) Validate() error {
if len(cfg.AccessKey) == 0 {
return ErrorAccessKeyNotSet
}
if len(cfg.Originator) == 0 {
return ErrorOriginatorNotSet
}
if len(cfg.Recipients) == 0 {
return ErrorRecipientsNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.AccessKey) > 0 {
cfg.AccessKey = override.AccessKey
}
if len(override.Originator) > 0 {
cfg.Originator = override.Originator
}
if len(override.Recipients) > 0 {
cfg.Recipients = override.Recipients
}
}
// AlertProvider is the configuration necessary for sending an alert using Messagebird
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
// Reference doc for messagebird: https://developers.messagebird.com/api/sms-messaging/#send-outbound-sms
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, restAPIURL, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Authorization", fmt.Sprintf("AccessKey %s", cfg.AccessKey))
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
Originator string `json:"originator"`
Recipients string `json:"recipients"`
Body string `json:"body"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message string
if resolved {
message = fmt.Sprintf("RESOLVED: %s - %s", ep.DisplayName(), alert.GetDescription())
} else {
message = fmt.Sprintf("TRIGGERED: %s - %s", ep.DisplayName(), alert.GetDescription())
}
body, _ := json.Marshal(Body{
Originator: cfg.Originator,
Recipients: cfg.Recipients,
Body: message,
})
return body
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

212
alerting/provider/messagebird/messagebird_test.go Normal file
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package messagebird
import (
"encoding/json"
"net/http"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestMessagebirdAlertProvider_IsValid(t *testing.T) {
invalidProvider := AlertProvider{}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{
DefaultConfig: Config{
AccessKey: "1",
Originator: "1",
Recipients: "1",
},
}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{AccessKey: "1", Originator: "2", Recipients: "3"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{AccessKey: "1", Originator: "2", Recipients: "3"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{AccessKey: "1", Originator: "2", Recipients: "3"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
ExpectedError: false,
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{AccessKey: "1", Originator: "2", Recipients: "3"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
ExpectedError: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{AccessKey: "1", Originator: "2", Recipients: "3"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: "{\"originator\":\"2\",\"recipients\":\"3\",\"body\":\"TRIGGERED: endpoint-name - description-1\"}",
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{AccessKey: "4", Originator: "5", Recipients: "6"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: "{\"originator\":\"5\",\"recipients\":\"6\",\"body\":\"RESOLVED: endpoint-name - description-2\"}",
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
body := scenario.Provider.buildRequestBody(
&scenario.Provider.DefaultConfig,
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_GetDefaultAlert(t *testing.T) {
if (&AlertProvider{DefaultAlert: &alert.Alert{}}).GetDefaultAlert() == nil {
t.Error("expected default alert to be not nil")
}
if (&AlertProvider{DefaultAlert: nil}).GetDefaultAlert() != nil {
t.Error("expected default alert to be nil")
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-should-default",
Provider: AlertProvider{
DefaultConfig: Config{AccessKey: "1", Originator: "2", Recipients: "3"},
},
InputAlert: alert.Alert{},
ExpectedOutput: Config{AccessKey: "1", Originator: "2", Recipients: "3"},
},
{
Name: "provider-with-alert-override",
Provider: AlertProvider{
DefaultConfig: Config{AccessKey: "1", Originator: "2", Recipients: "3"},
},
InputAlert: alert.Alert{ProviderOverride: map[string]any{"access-key": "4", "originator": "5", "recipients": "6"}},
ExpectedOutput: Config{AccessKey: "4", Originator: "5", Recipients: "6"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig("", &scenario.InputAlert)
if err != nil {
t.Error("expected no error, got:", err.Error())
}
if got.AccessKey != scenario.ExpectedOutput.AccessKey {
t.Errorf("expected access key to be %s, got %s", scenario.ExpectedOutput.AccessKey, got.AccessKey)
}
if got.Originator != scenario.ExpectedOutput.Originator {
t.Errorf("expected originator to be %s, got %s", scenario.ExpectedOutput.Originator, got.Originator)
}
if got.Recipients != scenario.ExpectedOutput.Recipients {
t.Errorf("expected recipients to be %s, got %s", scenario.ExpectedOutput.Recipients, got.Recipients)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides("", &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

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alerting/provider/ntfy/ntfy.go Normal file
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package ntfy
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
const (
DefaultURL = "https://ntfy.sh"
DefaultPriority = 3
TokenPrefix = "tk_"
)
var (
ErrInvalidToken = errors.New("invalid token")
ErrTopicNotSet = errors.New("topic not set")
ErrInvalidPriority = errors.New("priority must between 1 and 5 inclusively")
ErrDuplicateGroupOverride = errors.New("duplicate group override")
)
type Config struct {
Topic string `yaml:"topic"`
URL string `yaml:"url,omitempty"` // Defaults to DefaultURL
Priority int `yaml:"priority,omitempty"` // Defaults to DefaultPriority
Token string `yaml:"token,omitempty"` // Defaults to ""
Email string `yaml:"email,omitempty"` // Defaults to ""
Click string `yaml:"click,omitempty"` // Defaults to ""
DisableFirebase bool `yaml:"disable-firebase,omitempty"` // Defaults to false
DisableCache bool `yaml:"disable-cache,omitempty"` // Defaults to false
}
func (cfg *Config) Validate() error {
if len(cfg.URL) == 0 {
cfg.URL = DefaultURL
}
if cfg.Priority == 0 {
cfg.Priority = DefaultPriority
}
if len(cfg.Token) > 0 && !strings.HasPrefix(cfg.Token, TokenPrefix) {
return ErrInvalidToken
}
if len(cfg.Topic) == 0 {
return ErrTopicNotSet
}
if cfg.Priority < 1 || cfg.Priority > 5 {
return ErrInvalidPriority
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.Topic) > 0 {
cfg.Topic = override.Topic
}
if len(override.URL) > 0 {
cfg.URL = override.URL
}
if override.Priority > 0 {
cfg.Priority = override.Priority
}
if len(override.Token) > 0 {
cfg.Token = override.Token
}
if len(override.Email) > 0 {
cfg.Email = override.Email
}
if len(override.Click) > 0 {
cfg.Click = override.Click
}
if override.DisableFirebase {
cfg.DisableFirebase = true
}
if override.DisableCache {
cfg.DisableCache = true
}
}
// AlertProvider is the configuration necessary for sending an alert using Slack
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if len(override.Group) == 0 {
return ErrDuplicateGroupOverride
}
if _, ok := registeredGroups[override.Group]; ok {
return ErrDuplicateGroupOverride
}
if len(override.Token) > 0 && !strings.HasPrefix(override.Token, TokenPrefix) {
return ErrDuplicateGroupOverride
}
if override.Priority < 0 || override.Priority >= 6 {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
url := cfg.URL
request, err := http.NewRequest(http.MethodPost, url, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
if token := cfg.Token; len(token) > 0 {
request.Header.Set("Authorization", "Bearer "+token)
}
if cfg.DisableFirebase {
request.Header.Set("Firebase", "no")
}
if cfg.DisableCache {
request.Header.Set("Cache", "no")
}
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
Topic string `json:"topic"`
Title string `json:"title"`
Message string `json:"message"`
Tags []string `json:"tags"`
Priority int `json:"priority"`
Email string `json:"email,omitempty"`
Click string `json:"click,omitempty"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message, formattedConditionResults, tag string
if resolved {
tag = "white_check_mark"
message = "An alert has been resolved after passing successfully " + strconv.Itoa(alert.SuccessThreshold) + " time(s) in a row"
} else {
tag = "rotating_light"
message = "An alert has been triggered due to having failed " + strconv.Itoa(alert.FailureThreshold) + " time(s) in a row"
}
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "🟢"
} else {
prefix = "🔴"
}
formattedConditionResults += fmt.Sprintf("\n%s %s", prefix, conditionResult.Condition)
}
if len(alert.GetDescription()) > 0 {
message += " with the following description: " + alert.GetDescription()
}
message += formattedConditionResults
body, _ := json.Marshal(Body{
Topic: cfg.Topic,
Title: "Gatus: " + ep.DisplayName(),
Message: message,
Tags: []string{tag},
Priority: cfg.Priority,
Email: cfg.Email,
Click: cfg.Click,
})
return body
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}

414
alerting/provider/ntfy/ntfy_test.go Normal file
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@ -0,0 +1,414 @@
package ntfy
import (
"encoding/json"
"io"
"net/http"
"net/http/httptest"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/config/endpoint"
)
func TestAlertProvider_Validate(t *testing.T) {
scenarios := []struct {
name string
provider AlertProvider
expected bool
}{
{
name: "valid",
provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1}},
expected: true,
},
{
name: "no-url-should-use-default-value",
provider: AlertProvider{DefaultConfig: Config{Topic: "example", Priority: 1}},
expected: true,
},
{
name: "valid-with-token",
provider: AlertProvider{DefaultConfig: Config{Topic: "example", Priority: 1, Token: "tk_faketoken"}},
expected: true,
},
{
name: "invalid-token",
provider: AlertProvider{DefaultConfig: Config{Topic: "example", Priority: 1, Token: "xx_faketoken"}},
expected: false,
},
{
name: "invalid-topic",
provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "", Priority: 1}},
expected: false,
},
{
name: "invalid-priority-too-high",
provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 6}},
expected: false,
},
{
name: "invalid-priority-too-low",
provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: -1}},
expected: false,
},
{
name: "no-priority-should-use-default-value",
provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example"}},
expected: true,
},
{
name: "invalid-override-token",
provider: AlertProvider{DefaultConfig: Config{Topic: "example"}, Overrides: []Override{{Group: "g", Config: Config{Token: "xx_faketoken"}}}},
expected: false,
},
{
name: "invalid-override-priority",
provider: AlertProvider{DefaultConfig: Config{Topic: "example"}, Overrides: []Override{{Group: "g", Config: Config{Priority: 8}}}},
expected: false,
},
{
name: "no-override-group-name",
provider: AlertProvider{DefaultConfig: Config{Topic: "example"}, Overrides: []Override{{}}},
expected: false,
},
{
name: "duplicate-override-group-names",
provider: AlertProvider{DefaultConfig: Config{Topic: "example"}, Overrides: []Override{{Group: "g"}, {Group: "g"}}},
expected: false,
},
{
name: "valid-override",
provider: AlertProvider{DefaultConfig: Config{Topic: "example"}, Overrides: []Override{{Group: "g1", Config: Config{Priority: 4, Click: "https://example.com"}}, {Group: "g2", Config: Config{Topic: "Example", Token: "tk_faketoken"}}}},
expected: true,
},
}
for _, scenario := range scenarios {
t.Run(scenario.name, func(t *testing.T) {
err := scenario.provider.Validate()
if scenario.expected && err != nil {
t.Error("expected no error, got", err.Error())
}
if !scenario.expected && err == nil {
t.Error("expected error, got none")
}
})
}
}
func TestAlertProvider_buildRequestBody(t *testing.T) {
firstDescription := "description-1"
secondDescription := "description-2"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
ExpectedBody string
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1}`,
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 2}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been resolved after passing successfully 5 time(s) in a row with the following description: description-2\n🟢 [CONNECTED] == true\n🟢 [STATUS] == 200","tags":["white_check_mark"],"priority":2}`,
},
{
Name: "triggered-email",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1, Email: "test@example.com", Click: "example.com"}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1,"email":"test@example.com","click":"example.com"}`,
},
{
Name: "resolved-email",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 2, Email: "test@example.com", Click: "example.com"}},
Alert: alert.Alert{Description: &secondDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been resolved after passing successfully 5 time(s) in a row with the following description: description-2\n🟢 [CONNECTED] == true\n🟢 [STATUS] == 200","tags":["white_check_mark"],"priority":2,"email":"test@example.com","click":"example.com"}`,
},
{
Name: "group-override",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 5, Email: "test@example.com", Click: "example.com"}, Overrides: []Override{{Group: "g", Config: Config{Topic: "group-topic", Priority: 4, Email: "override@test.com", Click: "test.com"}}}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedBody: `{"topic":"group-topic","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":4,"email":"override@test.com","click":"test.com"}`,
},
{
Name: "alert-override",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 5, Email: "test@example.com", Click: "example.com"}, Overrides: []Override{{Group: "g", Config: Config{Topic: "group-topic", Priority: 4, Email: "override@test.com", Click: "test.com"}}}},
Alert: alert.Alert{Description: &firstDescription, SuccessThreshold: 5, FailureThreshold: 3, ProviderOverride: map[string]any{"topic": "alert-topic"}},
Resolved: false,
ExpectedBody: `{"topic":"alert-topic","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":4,"email":"override@test.com","click":"test.com"}`,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
cfg, err := scenario.Provider.GetConfig("g", &scenario.Alert)
if err != nil {
t.Error("expected no error, got", err.Error())
}
body := scenario.Provider.buildRequestBody(
cfg,
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
out := make(map[string]interface{})
if err := json.Unmarshal(body, &out); err != nil {
t.Error("expected body to be valid JSON, got error:", err.Error())
}
})
}
}
func TestAlertProvider_Send(t *testing.T) {
description := "description-1"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
Group string
ExpectedBody string
ExpectedHeaders map[string]string
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1, Email: "test@example.com", Click: "example.com"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
Group: "",
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1,"email":"test@example.com","click":"example.com"}`,
ExpectedHeaders: map[string]string{
"Content-Type": "application/json",
},
},
{
Name: "token",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1, Email: "test@example.com", Click: "example.com", Token: "tk_mytoken"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
Group: "",
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1,"email":"test@example.com","click":"example.com"}`,
ExpectedHeaders: map[string]string{
"Content-Type": "application/json",
"Authorization": "Bearer tk_mytoken",
},
},
{
Name: "no firebase",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1, Email: "test@example.com", Click: "example.com", DisableFirebase: true}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
Group: "",
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1,"email":"test@example.com","click":"example.com"}`,
ExpectedHeaders: map[string]string{
"Content-Type": "application/json",
"Firebase": "no",
},
},
{
Name: "no cache",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1, Email: "test@example.com", Click: "example.com", DisableCache: true}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
Group: "",
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1,"email":"test@example.com","click":"example.com"}`,
ExpectedHeaders: map[string]string{
"Content-Type": "application/json",
"Cache": "no",
},
},
{
Name: "neither firebase & cache",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1, Email: "test@example.com", Click: "example.com", DisableFirebase: true, DisableCache: true}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
Group: "",
ExpectedBody: `{"topic":"example","title":"Gatus: endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1,"email":"test@example.com","click":"example.com"}`,
ExpectedHeaders: map[string]string{
"Content-Type": "application/json",
"Firebase": "no",
"Cache": "no",
},
},
{
Name: "overrides",
Provider: AlertProvider{DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1, Email: "test@example.com", Click: "example.com", Token: "tk_mytoken"}, Overrides: []Override{Override{Group: "other-group", Config: Config{URL: "https://example.com", Token: "tk_othertoken"}}, Override{Group: "test-group", Config: Config{Token: "tk_test_token"}}}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
Group: "test-group",
ExpectedBody: `{"topic":"example","title":"Gatus: test-group/endpoint-name","message":"An alert has been triggered due to having failed 3 time(s) in a row with the following description: description-1\n🔴 [CONNECTED] == true\n🔴 [STATUS] == 200","tags":["rotating_light"],"priority":1,"email":"test@example.com","click":"example.com"}`,
ExpectedHeaders: map[string]string{
"Content-Type": "application/json",
"Authorization": "Bearer tk_test_token",
},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
// Start a local HTTP server
server := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
// Test request parameters
for header, value := range scenario.ExpectedHeaders {
if value != req.Header.Get(header) {
t.Errorf("expected: %s, got: %s", value, req.Header.Get(header))
}
}
body, _ := io.ReadAll(req.Body)
if string(body) != scenario.ExpectedBody {
t.Errorf("expected:\n%s\ngot:\n%s", scenario.ExpectedBody, body)
}
// Send response to be tested
rw.Write([]byte(`OK`))
}))
// Close the server when test finishes
defer server.Close()
scenario.Provider.DefaultConfig.URL = server.URL
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name", Group: scenario.Group},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if err != nil {
t.Error("Encountered an error on Send: ", err)
}
})
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputGroup string
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
Overrides: nil,
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
},
{
Name: "provider-no-override-specify-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
Overrides: nil,
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
},
{
Name: "provider-with-override-specify-no-group-should-default",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "https://group-example.com", Topic: "group-topic", Priority: 2},
},
},
},
InputGroup: "",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
},
{
Name: "provider-with-override-specify-group-should-override",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "https://group-example.com", Topic: "group-topic", Priority: 2},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{},
ExpectedOutput: Config{URL: "https://group-example.com", Topic: "group-topic", Priority: 2},
},
{
Name: "provider-with-group-override-and-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
Overrides: []Override{
{
Group: "group",
Config: Config{URL: "https://group-example.com", Topic: "group-topic", Priority: 2},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"url": "http://alert-example.com", "topic": "alert-topic", "priority": 3}},
ExpectedOutput: Config{URL: "http://alert-example.com", Topic: "alert-topic", Priority: 3},
},
{
Name: "provider-with-partial-overrides",
Provider: AlertProvider{
DefaultConfig: Config{URL: "https://ntfy.sh", Topic: "example", Priority: 1},
Overrides: []Override{
{
Group: "group",
Config: Config{Topic: "group-topic"},
},
},
},
InputGroup: "group",
InputAlert: alert.Alert{ProviderOverride: map[string]any{"priority": 3}},
ExpectedOutput: Config{URL: "https://ntfy.sh", Topic: "group-topic", Priority: 3},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig(scenario.InputGroup, &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.URL != scenario.ExpectedOutput.URL {
t.Errorf("expected url %s, got %s", scenario.ExpectedOutput.URL, got.URL)
}
if got.Topic != scenario.ExpectedOutput.Topic {
t.Errorf("expected topic %s, got %s", scenario.ExpectedOutput.Topic, got.Topic)
}
if got.Priority != scenario.ExpectedOutput.Priority {
t.Errorf("expected priority %d, got %d", scenario.ExpectedOutput.Priority, got.Priority)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides(scenario.InputGroup, &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

284
alerting/provider/opsgenie/opsgenie.go Normal file
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@ -0,0 +1,284 @@
package opsgenie
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"gopkg.in/yaml.v3"
)
const (
restAPI = "https://api.opsgenie.com/v2/alerts"
)
var (
ErrAPIKeyNotSet = errors.New("api-key not set")
)
type Config struct {
// APIKey to use for
APIKey string `yaml:"api-key"`
// Priority to be used in Opsgenie alert payload
//
// default: P1
Priority string `yaml:"priority"`
// Source define source to be used in Opsgenie alert payload
//
// default: gatus
Source string `yaml:"source"`
// EntityPrefix is a prefix to be used in entity argument in Opsgenie alert payload
//
// default: gatus-
EntityPrefix string `yaml:"entity-prefix"`
//AliasPrefix is a prefix to be used in alias argument in Opsgenie alert payload
//
// default: gatus-healthcheck-
AliasPrefix string `yaml:"alias-prefix"`
// Tags to be used in Opsgenie alert payload
//
// default: []
Tags []string `yaml:"tags"`
}
func (cfg *Config) Validate() error {
if len(cfg.APIKey) == 0 {
return ErrAPIKeyNotSet
}
if len(cfg.Source) == 0 {
cfg.Source = "gatus"
}
if len(cfg.EntityPrefix) == 0 {
cfg.EntityPrefix = "gatus-"
}
if len(cfg.AliasPrefix) == 0 {
cfg.AliasPrefix = "gatus-healthcheck-"
}
if len(cfg.Priority) == 0 {
cfg.Priority = "P1"
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.APIKey) > 0 {
cfg.APIKey = override.APIKey
}
if len(override.Priority) > 0 {
cfg.Priority = override.Priority
}
if len(override.Source) > 0 {
cfg.Source = override.Source
}
if len(override.EntityPrefix) > 0 {
cfg.EntityPrefix = override.EntityPrefix
}
if len(override.AliasPrefix) > 0 {
cfg.AliasPrefix = override.AliasPrefix
}
if len(override.Tags) > 0 {
cfg.Tags = override.Tags
}
}
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
//
// Relevant: https://docs.opsgenie.com/docs/alert-api
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
err = provider.sendAlertRequest(cfg, ep, alert, result, resolved)
if err != nil {
return err
}
if resolved {
err = provider.closeAlert(cfg, ep, alert)
if err != nil {
return err
}
}
if alert.IsSendingOnResolved() {
if resolved {
// The alert has been resolved and there's no error, so we can clear the alert's ResolveKey
alert.ResolveKey = ""
} else {
alert.ResolveKey = cfg.AliasPrefix + buildKey(ep)
}
}
return nil
}
func (provider *AlertProvider) sendAlertRequest(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
payload := provider.buildCreateRequestBody(cfg, ep, alert, result, resolved)
return provider.sendRequest(cfg, restAPI, http.MethodPost, payload)
}
func (provider *AlertProvider) closeAlert(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert) error {
payload := provider.buildCloseRequestBody(ep, alert)
url := restAPI + "/" + cfg.AliasPrefix + buildKey(ep) + "/close?identifierType=alias"
return provider.sendRequest(cfg, url, http.MethodPost, payload)
}
func (provider *AlertProvider) sendRequest(cfg *Config, url, method string, payload interface{}) error {
body, err := json.Marshal(payload)
if err != nil {
return fmt.Errorf("error build alert with payload %v: %w", payload, err)
}
request, err := http.NewRequest(method, url, bytes.NewBuffer(body))
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Authorization", "GenieKey "+cfg.APIKey)
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
rBody, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(rBody))
}
return nil
}
func (provider *AlertProvider) buildCreateRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) alertCreateRequest {
var message, description string
if resolved {
message = fmt.Sprintf("RESOLVED: %s - %s", ep.Name, alert.GetDescription())
description = fmt.Sprintf("An alert for *%s* has been resolved after passing successfully %d time(s) in a row", ep.DisplayName(), alert.SuccessThreshold)
} else {
message = fmt.Sprintf("%s - %s", ep.Name, alert.GetDescription())
description = fmt.Sprintf("An alert for *%s* has been triggered due to having failed %d time(s) in a row", ep.DisplayName(), alert.FailureThreshold)
}
if ep.Group != "" {
message = fmt.Sprintf("[%s] %s", ep.Group, message)
}
var formattedConditionResults string
for _, conditionResult := range result.ConditionResults {
var prefix string
if conditionResult.Success {
prefix = "▣"
} else {
prefix = "▢"
}
formattedConditionResults += fmt.Sprintf("%s - `%s`\n", prefix, conditionResult.Condition)
}
description = description + "\n" + formattedConditionResults
key := buildKey(ep)
details := map[string]string{
"endpoint:url": ep.URL,
"endpoint:group": ep.Group,
"result:hostname": result.Hostname,
"result:ip": result.IP,
"result:dns_code": result.DNSRCode,
"result:errors": strings.Join(result.Errors, ","),
}
for k, v := range details {
if v == "" {
delete(details, k)
}
}
if result.HTTPStatus > 0 {
details["result:http_status"] = strconv.Itoa(result.HTTPStatus)
}
return alertCreateRequest{
Message: message,
Description: description,
Source: cfg.Source,
Priority: cfg.Priority,
Alias: cfg.AliasPrefix + key,
Entity: cfg.EntityPrefix + key,
Tags: cfg.Tags,
Details: details,
}
}
func (provider *AlertProvider) buildCloseRequestBody(ep *endpoint.Endpoint, alert *alert.Alert) alertCloseRequest {
return alertCloseRequest{
Source: buildKey(ep),
Note: fmt.Sprintf("RESOLVED: %s - %s", ep.Name, alert.GetDescription()),
}
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}
func buildKey(ep *endpoint.Endpoint) string {
name := toKebabCase(ep.Name)
if ep.Group == "" {
return name
}
return toKebabCase(ep.Group) + "-" + name
}
func toKebabCase(val string) string {
return strings.ToLower(strings.ReplaceAll(val, " ", "-"))
}
type alertCreateRequest struct {
Message string `json:"message"`
Priority string `json:"priority"`
Source string `json:"source"`
Entity string `json:"entity"`
Alias string `json:"alias"`
Description string `json:"description"`
Tags []string `json:"tags,omitempty"`
Details map[string]string `json:"details"`
}
type alertCloseRequest struct {
Source string `json:"source"`
Note string `json:"note"`
}

361
alerting/provider/opsgenie/opsgenie_test.go Normal file
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@ -0,0 +1,361 @@
package opsgenie
import (
"net/http"
"reflect"
"testing"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/gatus/v5/test"
)
func TestAlertProvider_Validate(t *testing.T) {
invalidProvider := AlertProvider{DefaultConfig: Config{APIKey: ""}}
if err := invalidProvider.Validate(); err == nil {
t.Error("provider shouldn't have been valid")
}
validProvider := AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}}
if err := validProvider.Validate(); err != nil {
t.Error("provider should've been valid")
}
}
func TestAlertProvider_Send(t *testing.T) {
defer client.InjectHTTPClient(nil)
description := "my bad alert description"
scenarios := []struct {
Name string
Provider AlertProvider
Alert alert.Alert
Resolved bool
MockRoundTripper test.MockRoundTripper
ExpectedError bool
}{
{
Name: "triggered",
Provider: AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 1, FailureThreshold: 1},
Resolved: false,
ExpectedError: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
},
{
Name: "triggered-error",
Provider: AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: false,
ExpectedError: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
},
{
Name: "resolved",
Provider: AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedError: false,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}
}),
},
{
Name: "resolved-error",
Provider: AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}},
Alert: alert.Alert{Description: &description, SuccessThreshold: 5, FailureThreshold: 3},
Resolved: true,
ExpectedError: true,
MockRoundTripper: test.MockRoundTripper(func(r *http.Request) *http.Response {
return &http.Response{StatusCode: http.StatusInternalServerError, Body: http.NoBody}
}),
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
client.InjectHTTPClient(&http.Client{Transport: scenario.MockRoundTripper})
err := scenario.Provider.Send(
&endpoint.Endpoint{Name: "endpoint-name"},
&scenario.Alert,
&endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{Condition: "[CONNECTED] == true", Success: scenario.Resolved},
{Condition: "[STATUS] == 200", Success: scenario.Resolved},
},
},
scenario.Resolved,
)
if scenario.ExpectedError && err == nil {
t.Error("expected error, got none")
}
if !scenario.ExpectedError && err != nil {
t.Error("expected no error, got", err.Error())
}
})
}
}
func TestAlertProvider_buildCreateRequestBody(t *testing.T) {
t.Parallel()
description := "alert description"
scenarios := []struct {
Name string
Provider *AlertProvider
Alert *alert.Alert
Endpoint *endpoint.Endpoint
Result *endpoint.Result
Resolved bool
want alertCreateRequest
}{
{
Name: "missing all params (unresolved)",
Provider: &AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}},
Alert: &alert.Alert{},
Endpoint: &endpoint.Endpoint{},
Result: &endpoint.Result{},
Resolved: false,
want: alertCreateRequest{
Message: " - ",
Priority: "P1",
Source: "gatus",
Entity: "gatus-",
Alias: "gatus-healthcheck-",
Description: "An alert for ** has been triggered due to having failed 0 time(s) in a row\n",
Tags: nil,
Details: map[string]string{},
},
},
{
Name: "missing all params (resolved)",
Provider: &AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}},
Alert: &alert.Alert{},
Endpoint: &endpoint.Endpoint{},
Result: &endpoint.Result{},
Resolved: true,
want: alertCreateRequest{
Message: "RESOLVED: - ",
Priority: "P1",
Source: "gatus",
Entity: "gatus-",
Alias: "gatus-healthcheck-",
Description: "An alert for ** has been resolved after passing successfully 0 time(s) in a row\n",
Tags: nil,
Details: map[string]string{},
},
},
{
Name: "with default options (unresolved)",
Provider: &AlertProvider{DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"}},
Alert: &alert.Alert{
Description: &description,
FailureThreshold: 3,
},
Endpoint: &endpoint.Endpoint{
Name: "my super app",
},
Result: &endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{
Condition: "[STATUS] == 200",
Success: true,
},
{
Condition: "[BODY] == OK",
Success: false,
},
},
},
Resolved: false,
want: alertCreateRequest{
Message: "my super app - " + description,
Priority: "P1",
Source: "gatus",
Entity: "gatus-my-super-app",
Alias: "gatus-healthcheck-my-super-app",
Description: "An alert for *my super app* has been triggered due to having failed 3 time(s) in a row\n▣ - `[STATUS] == 200`\n▢ - `[BODY] == OK`\n",
Tags: nil,
Details: map[string]string{},
},
},
{
Name: "with custom options (resolved)",
Provider: &AlertProvider{
DefaultConfig: Config{
Priority: "P5",
EntityPrefix: "oompa-",
AliasPrefix: "loompa-",
Source: "gatus-hc",
Tags: []string{"do-ba-dee-doo"},
},
},
Alert: &alert.Alert{
Description: &description,
SuccessThreshold: 4,
},
Endpoint: &endpoint.Endpoint{
Name: "my mega app",
},
Result: &endpoint.Result{
ConditionResults: []*endpoint.ConditionResult{
{
Condition: "[STATUS] == 200",
Success: true,
},
},
},
Resolved: true,
want: alertCreateRequest{
Message: "RESOLVED: my mega app - " + description,
Priority: "P5",
Source: "gatus-hc",
Entity: "oompa-my-mega-app",
Alias: "loompa-my-mega-app",
Description: "An alert for *my mega app* has been resolved after passing successfully 4 time(s) in a row\n▣ - `[STATUS] == 200`\n",
Tags: []string{"do-ba-dee-doo"},
Details: map[string]string{},
},
},
{
Name: "with default options and details (unresolved)",
Provider: &AlertProvider{
DefaultConfig: Config{Tags: []string{"foo"}, APIKey: "00000000-0000-0000-0000-000000000000"},
},
Alert: &alert.Alert{
Description: &description,
FailureThreshold: 6,
},
Endpoint: &endpoint.Endpoint{
Name: "my app",
Group: "end game",
URL: "https://my.go/app",
},
Result: &endpoint.Result{
HTTPStatus: 400,
Hostname: "my.go",
Errors: []string{"error 01", "error 02"},
Success: false,
ConditionResults: []*endpoint.ConditionResult{
{
Condition: "[STATUS] == 200",
Success: false,
},
},
},
Resolved: false,
want: alertCreateRequest{
Message: "[end game] my app - " + description,
Priority: "P1",
Source: "gatus",
Entity: "gatus-end-game-my-app",
Alias: "gatus-healthcheck-end-game-my-app",
Description: "An alert for *end game/my app* has been triggered due to having failed 6 time(s) in a row\n▢ - `[STATUS] == 200`\n",
Tags: []string{"foo"},
Details: map[string]string{
"endpoint:url": "https://my.go/app",
"endpoint:group": "end game",
"result:hostname": "my.go",
"result:errors": "error 01,error 02",
"result:http_status": "400",
},
},
},
}
for _, scenario := range scenarios {
actual := scenario
t.Run(actual.Name, func(t *testing.T) {
_ = scenario.Provider.Validate()
if got := actual.Provider.buildCreateRequestBody(&scenario.Provider.DefaultConfig, actual.Endpoint, actual.Alert, actual.Result, actual.Resolved); !reflect.DeepEqual(got, actual.want) {
t.Errorf("got:\n%v\nwant:\n%v", got, actual.want)
}
})
}
}
func TestAlertProvider_buildCloseRequestBody(t *testing.T) {
t.Parallel()
description := "alert description"
scenarios := []struct {
Name string
Provider *AlertProvider
Alert *alert.Alert
Endpoint *endpoint.Endpoint
want alertCloseRequest
}{
{
Name: "Missing all values",
Provider: &AlertProvider{},
Alert: &alert.Alert{},
Endpoint: &endpoint.Endpoint{},
want: alertCloseRequest{
Source: "",
Note: "RESOLVED: - ",
},
},
{
Name: "Basic values",
Provider: &AlertProvider{},
Alert: &alert.Alert{
Description: &description,
},
Endpoint: &endpoint.Endpoint{
Name: "endpoint name",
},
want: alertCloseRequest{
Source: "endpoint-name",
Note: "RESOLVED: endpoint name - alert description",
},
},
}
for _, scenario := range scenarios {
actual := scenario
t.Run(actual.Name, func(t *testing.T) {
if got := actual.Provider.buildCloseRequestBody(actual.Endpoint, actual.Alert); !reflect.DeepEqual(got, actual.want) {
t.Errorf("buildCloseRequestBody() = %v, want %v", got, actual.want)
}
})
}
}
func TestAlertProvider_GetConfig(t *testing.T) {
scenarios := []struct {
Name string
Provider AlertProvider
InputAlert alert.Alert
ExpectedOutput Config
}{
{
Name: "provider-no-override-should-default",
Provider: AlertProvider{
DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"},
},
InputAlert: alert.Alert{},
ExpectedOutput: Config{APIKey: "00000000-0000-0000-0000-000000000000"},
},
{
Name: "provider-with-alert-override--alert-override-should-take-precedence",
Provider: AlertProvider{
DefaultConfig: Config{APIKey: "00000000-0000-0000-0000-000000000000"},
},
InputAlert: alert.Alert{ProviderOverride: map[string]any{"api-key": "00000000-0000-0000-0000-000000000001"}},
ExpectedOutput: Config{APIKey: "00000000-0000-0000-0000-000000000001"},
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
got, err := scenario.Provider.GetConfig("", &scenario.InputAlert)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if got.APIKey != scenario.ExpectedOutput.APIKey {
t.Errorf("expected APIKey to be %s, got %s", scenario.ExpectedOutput.APIKey, got.APIKey)
}
// Test ValidateOverrides as well, since it really just calls GetConfig
if err = scenario.Provider.ValidateOverrides("", &scenario.InputAlert); err != nil {
t.Errorf("unexpected error: %s", err)
}
})
}
}

195
alerting/provider/pagerduty/pagerduty.go Normal file
View File

@ -0,0 +1,195 @@
package pagerduty
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/config/endpoint"
"github.com/TwiN/logr"
"gopkg.in/yaml.v3"
)
const (
restAPIURL = "https://events.pagerduty.com/v2/enqueue"
)
var (
ErrIntegrationKeyNotSet = errors.New("integration-key must have exactly 32 characters")
ErrDuplicateGroupOverride = errors.New("duplicate group override")
)
type Config struct {
IntegrationKey string `yaml:"integration-key"`
}
func (cfg *Config) Validate() error {
if len(cfg.IntegrationKey) != 32 {
return ErrIntegrationKeyNotSet
}
return nil
}
func (cfg *Config) Merge(override *Config) {
if len(override.IntegrationKey) > 0 {
cfg.IntegrationKey = override.IntegrationKey
}
}
// AlertProvider is the configuration necessary for sending an alert using PagerDuty
type AlertProvider struct {
DefaultConfig Config `yaml:",inline"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
// Overrides is a list of Override that may be prioritized over the default configuration
Overrides []Override `yaml:"overrides,omitempty"`
}
// Override is a case under which the default integration is overridden
type Override struct {
Group string `yaml:"group"`
Config `yaml:",inline"`
}
// Validate the provider's configuration
func (provider *AlertProvider) Validate() error {
registeredGroups := make(map[string]bool)
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if isAlreadyRegistered := registeredGroups[override.Group]; isAlreadyRegistered || override.Group == "" {
return ErrDuplicateGroupOverride
}
registeredGroups[override.Group] = true
}
}
// Either the default integration key has the right length, or there are overrides who are properly configured.
return provider.DefaultConfig.Validate()
}
// Send an alert using the provider
//
// Relevant: https://developer.pagerduty.com/docs/events-api-v2/trigger-events/
func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) error {
cfg, err := provider.GetConfig(ep.Group, alert)
if err != nil {
return err
}
buffer := bytes.NewBuffer(provider.buildRequestBody(cfg, ep, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, restAPIURL, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
if alert.IsSendingOnResolved() {
if resolved {
// The alert has been resolved and there's no error, so we can clear the alert's ResolveKey
alert.ResolveKey = ""
} else {
// We need to retrieve the resolve key from the response
var payload pagerDutyResponsePayload
if err = json.NewDecoder(response.Body).Decode(&payload); err != nil {
// Silently fail. We don't want to create tons of alerts just because we failed to parse the body.
logr.Errorf("[pagerduty.Send] Ran into error decoding pagerduty response: %s", err.Error())
} else {
alert.ResolveKey = payload.DedupKey
}
}
}
return nil
}
type Body struct {
RoutingKey string `json:"routing_key"`
DedupKey string `json:"dedup_key"`
EventAction string `json:"event_action"`
Payload Payload `json:"payload"`
}
type Payload struct {
Summary string `json:"summary"`
Source string `json:"source"`
Severity string `json:"severity"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) []byte {
var message, eventAction, resolveKey string
if resolved {
message = fmt.Sprintf("RESOLVED: %s - %s", ep.DisplayName(), alert.GetDescription())
eventAction = "resolve"
resolveKey = alert.ResolveKey
} else {
message = fmt.Sprintf("TRIGGERED: %s - %s", ep.DisplayName(), alert.GetDescription())
eventAction = "trigger"
resolveKey = ""
}
body, _ := json.Marshal(Body{
RoutingKey: cfg.IntegrationKey,
DedupKey: resolveKey,
EventAction: eventAction,
Payload: Payload{
Summary: message,
Source: "Gatus",
Severity: "critical",
},
})
return body
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider *AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}
// GetConfig returns the configuration for the provider with the overrides applied
func (provider *AlertProvider) GetConfig(group string, alert *alert.Alert) (*Config, error) {
cfg := provider.DefaultConfig
// Handle group overrides
if provider.Overrides != nil {
for _, override := range provider.Overrides {
if group == override.Group {
cfg.Merge(&override.Config)
break
}
}
}
// Handle alert overrides
if len(alert.ProviderOverride) != 0 {
overrideConfig := Config{}
if err := yaml.Unmarshal(alert.ProviderOverrideAsBytes(), &overrideConfig); err != nil {
return nil, err
}
cfg.Merge(&overrideConfig)
}
// Validate the configuration
err := cfg.Validate()
return &cfg, err
}
// ValidateOverrides validates the alert's provider override and, if present, the group override
func (provider *AlertProvider) ValidateOverrides(group string, alert *alert.Alert) error {
_, err := provider.GetConfig(group, alert)
return err
}
type pagerDutyResponsePayload struct {
Status string `json:"status"`
Message string `json:"message"`
DedupKey string `json:"dedup_key"`
}

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