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#89: First implementation of longer result history

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This commit is contained in:
TwinProduction
2021-02-24 22:41:36 -05:00
parent 42825b62fb
commit dc929dac70
19 changed files with 359 additions and 84 deletions
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30
controller/controller.go
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@ -14,7 +14,7 @@ import (
"github.com/TwinProduction/gatus/config"
"github.com/TwinProduction/gatus/security"
"github.com/TwinProduction/gatus/watchdog"
"github.com/TwinProduction/gatus/storage"
"github.com/TwinProduction/gocache"
"github.com/TwinProduction/health"
"github.com/gorilla/mux"
@ -101,21 +101,22 @@ func secureIfNecessary(cfg *config.Config, handler http.HandlerFunc) http.Handle
// Due to the size of the response, this function leverages a cache.
// Must not be wrapped by GzipHandler
func serviceStatusesHandler(writer http.ResponseWriter, r *http.Request) {
page, pageSize := extractPageAndPageSizeFromRequest(r)
gzipped := strings.Contains(r.Header.Get("Accept-Encoding"), "gzip")
var exists bool
var value interface{}
if gzipped {
writer.Header().Set("Content-Encoding", "gzip")
value, exists = cache.Get("service-status-gzipped")
value, exists = cache.Get(fmt.Sprintf("service-status-%d-%d-gzipped", page, pageSize))
} else {
value, exists = cache.Get("service-status")
value, exists = cache.Get(fmt.Sprintf("service-status-%d-%d", page, pageSize))
}
var data []byte
if !exists {
var err error
buffer := &bytes.Buffer{}
gzipWriter := gzip.NewWriter(buffer)
data, err = watchdog.GetServiceStatusesAsJSON()
data, err = json.Marshal(storage.Get().GetAllServiceStatusesWithResultPagination(page, pageSize))
if err != nil {
log.Printf("[controller][serviceStatusesHandler] Unable to marshal object to JSON: %s", err.Error())
writer.WriteHeader(http.StatusInternalServerError)
@ -125,8 +126,8 @@ func serviceStatusesHandler(writer http.ResponseWriter, r *http.Request) {
_, _ = gzipWriter.Write(data)
_ = gzipWriter.Close()
gzippedData := buffer.Bytes()
cache.SetWithTTL("service-status", data, cacheTTL)
cache.SetWithTTL("service-status-gzipped", gzippedData, cacheTTL)
cache.SetWithTTL(fmt.Sprintf("service-status-%d-%d", page, pageSize), data, cacheTTL)
cache.SetWithTTL(fmt.Sprintf("service-status-%d-%d-gzipped", page, pageSize), gzippedData, cacheTTL)
if gzipped {
data = gzippedData
}
@ -140,8 +141,9 @@ func serviceStatusesHandler(writer http.ResponseWriter, r *http.Request) {
// serviceStatusHandler retrieves a single ServiceStatus by group name and service name
func serviceStatusHandler(writer http.ResponseWriter, r *http.Request) {
page, pageSize := extractPageAndPageSizeFromRequest(r)
vars := mux.Vars(r)
serviceStatus := watchdog.GetServiceStatusByKey(vars["key"])
serviceStatus := storage.Get().GetServiceStatusByKey(vars["key"])
if serviceStatus == nil {
log.Printf("[controller][serviceStatusHandler] Service with key=%s not found", vars["key"])
writer.WriteHeader(http.StatusNotFound)
@ -149,7 +151,7 @@ func serviceStatusHandler(writer http.ResponseWriter, r *http.Request) {
return
}
data := map[string]interface{}{
"serviceStatus": serviceStatus,
"serviceStatus": serviceStatus.WithResultPagination(page, pageSize),
// The following fields, while present on core.ServiceStatus, are annotated to remain hidden so that we can
// expose only the necessary data on /api/v1/statuses.
// Since the /api/v1/statuses/{key} endpoint does need this data, however, we explicitly expose it here
@ -160,20 +162,10 @@ func serviceStatusHandler(writer http.ResponseWriter, r *http.Request) {
if err != nil {
log.Printf("[controller][serviceStatusHandler] Unable to marshal object to JSON: %s", err.Error())
writer.WriteHeader(http.StatusInternalServerError)
_, _ = writer.Write([]byte("Unable to marshal object to JSON"))
_, _ = writer.Write([]byte("unable to marshal object to JSON"))
return
}
writer.Header().Add("Content-Type", "application/json")
writer.WriteHeader(http.StatusOK)
_, _ = writer.Write(output)
}
// favIconHandler handles requests for /favicon.ico
func favIconHandler(writer http.ResponseWriter, request *http.Request) {
http.ServeFile(writer, request, staticFolder+"/favicon.ico")
}
// spaHandler handles requests for /favicon.ico
func spaHandler(writer http.ResponseWriter, request *http.Request) {
http.ServeFile(writer, request, staticFolder+"/index.html")
}