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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
// Copyright 2015 Light Code Labs, LLC
//
// 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
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// 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.
package pprof
import (
"net/http"
pp "net/http/pprof"
"github.com/mholt/caddy/caddyhttp/httpserver"
)
// BasePath is the base path to match for all pprof requests.
const BasePath = "/debug/pprof"
// Handler is a simple struct whose ServeHTTP will delegate pprof
// endpoints to their equivalent net/http/pprof handlers.
type Handler struct {
Next httpserver.Handler
Mux *http.ServeMux
}
// ServeHTTP handles requests to BasePath with pprof, or passes
// all other requests up the chain.
func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
if httpserver.Path(r.URL.Path).Matches(BasePath) {
h.Mux.ServeHTTP(w, r)
return 0, nil
}
return h.Next.ServeHTTP(w, r)
}
// NewMux returns a new http.ServeMux that routes pprof requests.
// It pretty much copies what the std lib pprof does on init:
// https://golang.org/src/net/http/pprof/pprof.go#L67
func NewMux() *http.ServeMux {
mux := http.NewServeMux()
mux.HandleFunc(BasePath+"/", func(w http.ResponseWriter, r *http.Request) {
// this endpoint, as implemented in the standard library, doesn't set
// its Content-Type header, so using this can confuse clients, especially
// if gzipping...
w.Header().Set("Content-Type", "text/html; charset=utf-8")
pp.Index(w, r)
})
mux.HandleFunc(BasePath+"/cmdline", pp.Cmdline)
mux.HandleFunc(BasePath+"/profile", pp.Profile)
mux.HandleFunc(BasePath+"/symbol", pp.Symbol)
mux.HandleFunc(BasePath+"/trace", pp.Trace)
return mux
}
|
