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dbgheader.go
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/
dbgheader.go
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// Copyright (c) 2017 Rackspace
//
// 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 middleware
import (
"net/http"
"runtime/debug"
"github.com/troubling/hummingbird/common/srv"
)
func NewDebugResponses(debugHeader bool) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
if debugHeader {
return http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
next.ServeHTTP(srv.NewCustomWriter(writer, func(w http.ResponseWriter, status int) int {
if status/100 != 2 {
buf := debug.Stack()
w.Header().Set("X-Source-Code", string(buf))
}
return status
}), request)
})
}
return next
}
}