61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
package logger
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import (
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"log"
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"net/http"
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"time"
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)
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type loggerResponseWriter struct {
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http.ResponseWriter
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statusCode int
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responseSize int
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}
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func (w *loggerResponseWriter) WriteHeader(statusCode int) {
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w.statusCode = statusCode
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w.ResponseWriter.WriteHeader(statusCode)
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}
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func (w *loggerResponseWriter) Write(b []byte) (int, error) {
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w.responseSize += len(b)
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return w.ResponseWriter.Write(b)
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}
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func (w *loggerResponseWriter) Flush() {
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if f, ok := w.ResponseWriter.(http.Flusher); ok {
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f.Flush()
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}
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}
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func Logger(handler http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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t := time.Now()
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logger := loggerResponseWriter{w, 0, 0}
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handler.ServeHTTP(&logger, r)
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statusCode := logger.statusCode
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if statusCode == 0 {
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statusCode = http.StatusOK
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}
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referer := r.Referer()
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if referer == "" {
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referer = "-"
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}
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log.Printf("HTTP - %s - - [%s] \"%s %s %s\" %d %d \"%s\" \"%s\" %s\n",
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r.RemoteAddr,
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t.Format("02/Jan/2006:15:04:05 -0700"),
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r.Method,
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r.URL.Path,
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r.Proto,
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statusCode,
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logger.responseSize,
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referer,
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r.UserAgent(),
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time.Since(t),
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)
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})
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}
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