mirror of
https://github.com/minio/minio.git
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121 lines
3.1 KiB
Go
121 lines
3.1 KiB
Go
/*
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* Minimalist Object Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"encoding/json"
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"net/http"
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"net/url"
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"os"
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"time"
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"github.com/minio/minio-xl/pkg/probe"
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)
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type accessLogHandler struct {
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http.Handler
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accessLogFile *os.File
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}
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// LogMessage is a serializable json log message
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type LogMessage struct {
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StartTime time.Time
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Duration time.Duration
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StatusMessage string // human readable http status message
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ContentLength string // human readable content length
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// HTTP detailed message
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HTTP struct {
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ResponseHeaders http.Header
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Request struct {
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Method string
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URL *url.URL
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Proto string // "HTTP/1.0"
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ProtoMajor int // 1
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ProtoMinor int // 0
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Header http.Header
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Host string
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Form url.Values
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PostForm url.Values
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Trailer http.Header
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RemoteAddr string
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RequestURI string
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}
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}
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}
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func (h *accessLogHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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message, err := getLogMessage(w, req)
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fatalIf(err.Trace(), "Unable to extract http message.", nil)
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_, e := h.accessLogFile.Write(message)
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fatalIf(probe.NewError(e), "Writing to log file failed.", nil)
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h.Handler.ServeHTTP(w, req)
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}
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func getLogMessage(w http.ResponseWriter, req *http.Request) ([]byte, *probe.Error) {
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logMessage := &LogMessage{
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StartTime: time.Now().UTC(),
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}
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// store lower level details
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logMessage.HTTP.ResponseHeaders = w.Header()
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logMessage.HTTP.Request = struct {
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Method string
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URL *url.URL
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Proto string // "HTTP/1.0"
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ProtoMajor int // 1
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ProtoMinor int // 0
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Header http.Header
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Host string
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Form url.Values
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PostForm url.Values
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Trailer http.Header
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RemoteAddr string
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RequestURI string
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}{
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Method: req.Method,
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URL: req.URL,
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Proto: req.Proto,
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ProtoMajor: req.ProtoMajor,
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ProtoMinor: req.ProtoMinor,
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Header: req.Header,
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Host: req.Host,
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Form: req.Form,
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PostForm: req.PostForm,
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Trailer: req.Header,
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RemoteAddr: req.RemoteAddr,
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RequestURI: req.RequestURI,
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}
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// logMessage.HTTP.Request = req
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logMessage.Duration = time.Now().UTC().Sub(logMessage.StartTime)
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js, e := json.Marshal(logMessage)
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if e != nil {
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return nil, probe.NewError(e)
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}
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js = append(js, byte('\n')) // append a new line
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return js, nil
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}
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// setAccessLogHandler logs requests
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func setAccessLogHandler(h http.Handler) http.Handler {
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file, e := os.OpenFile("access.log", os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0600)
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fatalIf(probe.NewError(e), "Unable to open access log.", nil)
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return &accessLogHandler{Handler: h, accessLogFile: file}
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}
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