woodpecker/server/api/metrics/prometheus.go

60 lines
1.5 KiB
Go
Raw Normal View History

2018-02-19 22:24:10 +00:00
// Copyright 2018 Drone.IO Inc.
2018-03-21 13:02:17 +00:00
//
2018-02-19 22:24:10 +00:00
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
2018-03-21 13:02:17 +00:00
//
2018-02-19 22:24:10 +00:00
// http://www.apache.org/licenses/LICENSE-2.0
2018-03-21 13:02:17 +00:00
//
2018-02-19 22:24:10 +00:00
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// 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.
2017-04-27 20:49:28 +00:00
package metrics
import (
"errors"
"fmt"
"net/http"
2017-04-27 20:49:28 +00:00
"github.com/gin-gonic/gin"
prometheus_http "github.com/prometheus/client_golang/prometheus/promhttp"
"go.woodpecker-ci.org/woodpecker/v2/server"
2017-04-27 20:49:28 +00:00
)
2022-01-05 20:50:23 +00:00
// errInvalidToken is returned when the api request token is invalid.
var errInvalidToken = errors.New("invalid or missing token")
// PromHandler will pass the call from /api/metrics/prometheus to prometheus.
2017-04-27 20:49:28 +00:00
func PromHandler() gin.HandlerFunc {
handler := prometheus_http.Handler()
2017-04-27 20:49:28 +00:00
return func(c *gin.Context) {
2018-03-27 20:50:55 +00:00
token := server.Config.Prometheus.AuthToken
if token == "" {
c.AbortWithStatus(http.StatusNotFound)
return
}
header := c.Request.Header.Get("Authorization")
if header == "" {
c.String(http.StatusUnauthorized, errInvalidToken.Error())
return
}
bearer := fmt.Sprintf("Bearer %s", token)
if header != bearer {
c.String(http.StatusForbidden, errInvalidToken.Error())
return
}
handler.ServeHTTP(c.Writer, c.Request)
2017-04-27 20:49:28 +00:00
}
}