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// Copyright 2015 Matthew Holt and The Caddy Authors
//
// 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 caddylog
import (
"log"
"net/http"
"time"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
)
func init() {
caddy.RegisterModule(caddy.Module{
Name: "http.handlers.log",
New: func() interface{} { return new(Log) },
})
}
// Log implements a simple logging middleware.
type Log struct {
Filename string
counter int
}
func (l *Log) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
start := time.Now()
// TODO: An example of returning errors
// return caddyhttp.Error(http.StatusBadRequest, fmt.Errorf("this is a basic error"))
// return caddyhttp.Error(http.StatusBadGateway, caddyhttp.HandlerError{
// Err: fmt.Errorf("this is a detailed error"),
// Message: "We had trouble doing the thing.",
// Recommendations: []string{
// "Try reconnecting the gizbop.",
// "Turn off the Internet.",
// },
// })
if err := next.ServeHTTP(w, r); err != nil {
return err
}
log.Println("latency:", time.Now().Sub(start), l.counter)
return nil
}
// Interface guard
var _ caddyhttp.MiddlewareHandler = (*Log)(nil)
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