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e14a62f188
The standard lib pprof library doesn't set its own Content-Type header properly. If pprof is used with gzip, the index endpoint will be interpreted as a .gz file; so we force its hand and set the header.
48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
package pprof
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import (
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"net/http"
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pp "net/http/pprof"
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"github.com/mholt/caddy/caddyhttp/httpserver"
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)
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// BasePath is the base path to match for all pprof requests.
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const BasePath = "/debug/pprof"
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// Handler is a simple struct whose ServeHTTP will delegate pprof
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// endpoints to their equivalent net/http/pprof handlers.
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type Handler struct {
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Next httpserver.Handler
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Mux *http.ServeMux
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}
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// ServeHTTP handles requests to BasePath with pprof, or passes
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// all other requests up the chain.
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func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
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if httpserver.Path(r.URL.Path).Matches(BasePath) {
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h.Mux.ServeHTTP(w, r)
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return 0, nil
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}
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return h.Next.ServeHTTP(w, r)
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}
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// NewMux returns a new http.ServeMux that routes pprof requests.
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// It pretty much copies what the std lib pprof does on init:
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// https://golang.org/src/net/http/pprof/pprof.go#L67
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func NewMux() *http.ServeMux {
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mux := http.NewServeMux()
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mux.HandleFunc(BasePath+"/", func(w http.ResponseWriter, r *http.Request) {
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// this endpoint, as implemented in the standard library, doesn't set
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// its Content-Type header, so using this can confuse clients, especially
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// if gzipping...
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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pp.Index(w, r)
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})
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mux.HandleFunc(BasePath+"/cmdline", pp.Cmdline)
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mux.HandleFunc(BasePath+"/profile", pp.Profile)
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mux.HandleFunc(BasePath+"/symbol", pp.Symbol)
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mux.HandleFunc(BasePath+"/trace", pp.Trace)
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return mux
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}
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