Reset
This commit is contained in:
211
alerting/provider/mattermost/mattermost.go
Normal file
211
alerting/provider/mattermost/mattermost.go
Normal file
@ -0,0 +1,211 @@
|
||||
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
287
alerting/provider/mattermost/mattermost_test.go
Normal file
@ -0,0 +1,287 @@
|
||||
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)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user