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metrics.go 802B

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  1. // Copyright 2018 The Gitea Authors. All rights reserved.
  2. // SPDX-License-Identifier: MIT
  3. package web
  4. import (
  5. "crypto/subtle"
  6. "net/http"
  7. "code.gitea.io/gitea/modules/setting"
  8. "github.com/prometheus/client_golang/prometheus/promhttp"
  9. )
  10. // Metrics validate auth token and render prometheus metrics
  11. func Metrics(resp http.ResponseWriter, req *http.Request) {
  12. if setting.Metrics.Token == "" {
  13. promhttp.Handler().ServeHTTP(resp, req)
  14. return
  15. }
  16. header := req.Header.Get("Authorization")
  17. if header == "" {
  18. http.Error(resp, "", http.StatusUnauthorized)
  19. return
  20. }
  21. got := []byte(header)
  22. want := []byte("Bearer " + setting.Metrics.Token)
  23. if subtle.ConstantTimeCompare(got, want) != 1 {
  24. http.Error(resp, "", http.StatusUnauthorized)
  25. return
  26. }
  27. promhttp.Handler().ServeHTTP(resp, req)
  28. }