pkgsite/internal/middleware/panic.go

28 строки
708 B
Go

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package middleware
import (
"net/http"
"golang.org/x/pkgsite/internal/log"
)
// Panic returns a middleware that executes panicHandler on any panic
// originating from the delegate handler.
func Panic(panicHandler http.Handler) Middleware {
return func(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer func() {
if e := recover(); e != nil {
log.Errorf(r.Context(), "middleware.Panic: %v", e)
panicHandler.ServeHTTP(w, r)
}
}()
h.ServeHTTP(w, r)
})
}
}