func handler() http.Handler {
info := struct {
Profiles []*pprof.Profile
Token string
}{
Profiles: pprof.Profiles(),
}
h := func(w http.ResponseWriter, r *http.Request) {
// get the last path, allowing this to be mounted under any prefix
split := strings.Split(r.URL.Path, "/")
name := split[len(split)-1]
switch name {
case "":
// Index page.
if err := indexTmpl.Execute(w, info); err != nil {
fmt.Fprintf(w, "something went wrong - %s", err)
return
}
case "cmdline":
nhpprof.Cmdline(w, r)
case "profile":
nhpprof.Profile(w, r)
case "trace":
nhpprof.Trace(w, r)
case "symbol":
nhpprof.Symbol(w, r)
default:
// Provides access to all profiles under runtime/pprof
nhpprof.Handler(name).ServeHTTP(w, r)
}
}
return http.HandlerFunc(h)
}
// title: profile trace handler
// path: /debug/pprof/trace
// method: GET
// responses:
// 200: Ok
// 401: Unauthorized
func traceHandler(w http.ResponseWriter, r *http.Request, t auth.Token) error {
if !permission.Check(t, permission.PermDebug) {
return permission.ErrUnauthorized
}
pprof.Trace(w, r)
return nil
}
// 根据 config.Pprof 决定是否包装调试地址
func (cfg *Config) buildPprof(h http.Handler) http.Handler {
if len(cfg.Pprof) > 0 {
logs.Debug("web:", "开启了调试功能，地址为：", cfg.Pprof)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if !strings.HasPrefix(r.URL.Path, cfg.Pprof) {
h.ServeHTTP(w, r)
return
}
path := r.URL.Path[len(cfg.Pprof):]
switch path {
case "cmdline":
pprof.Cmdline(w, r)
case "profile":
pprof.Profile(w, r)
case "symbol":
pprof.Symbol(w, r)
case "trace":
pprof.Trace(w, r)
default:
pprof.Index(w, r)
}
})
}
return h
}
func (*Pprof) Index(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
switch p.ByName("name") {
case "profile":
pprof.Profile(w, r)
case "symbol":
pprof.Symbol(w, r)
case "trace":
pprof.Trace(w, r)
case "cmdline":
pprof.Cmdline(w, r)
default:
pprof.Index(w, r)
}
}
//Trace profiler on wrapper RouteFunction
func TraceHandler(fn restful.RouteFunction) restful.RouteFunction {
return func(r *restful.Request, w *restful.Response) {
pprof.Trace(w.ResponseWriter, r.Request)
fn(r, w)
}
}
// Trace provides the pprof Trace endpoint
func (p *PProf) Trace(c *Context, next NextHandler) {
pprof.Trace(c.Res, c.Req)
next(c)
}