-
Notifications
You must be signed in to change notification settings - Fork 2.8k
/
apipanic.go
43 lines (37 loc) · 1.13 KB
/
apipanic.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Cilium
package api
import (
"net/http"
"os"
"runtime/debug"
"github.com/sirupsen/logrus"
"github.com/cilium/cilium/pkg/logging"
)
// APIPanicHandler recovers from API panics and logs encountered panics
type APIPanicHandler struct {
Next http.Handler
}
// ServeHTTP implements the http.Handler interface.
// It recovers from panics of all next handlers and logs them
func (h *APIPanicHandler) ServeHTTP(wr http.ResponseWriter, req *http.Request) {
defer func() {
if r := recover(); r != nil {
fields := logrus.Fields{
"panic_message": r,
"url": req.URL.String(),
"method": req.Method,
"client": req.RemoteAddr,
}
log.WithFields(fields).Warn("Cilium API handler panicked")
if logging.DefaultLogger.IsLevelEnabled(logrus.DebugLevel) {
os.Stdout.Write(debug.Stack())
}
wr.WriteHeader(http.StatusInternalServerError)
if _, err := wr.Write([]byte("Internal error occurred, check Cilium logs for details.")); err != nil {
log.WithError(err).Debug("Failed to write API response")
}
}
}()
h.Next.ServeHTTP(wr, req)
}