Log all HTTP requests when running with -debug

httpserver/requestlogger.go

@@ -0,0 +1,43 @@
+package httpserver
+
+import (
+	"encoding/base64"
+	"net/http"
+	"strings"
+
+	auth "github.com/abbot/go-http-auth"
+	"github.com/sirupsen/logrus"
+)
+
+// LoggingWrap wraps a HTTP Handler and logs all requests to the Debug log level.
+// This is intended as a debugging tool only.
+func LoggingWrap(h http.Handler) http.Handler {
+	fn := func(w http.ResponseWriter, r *http.Request) {
+		logger := logrus.WithFields(logrus.Fields{
+			"uri":         r.URL.String(),
+			"method":      r.Method,
+			"remote_addr": r.RemoteAddr,
+			"username":    getAuthUsername(r),
+		})
+		logger.Debug("incoming HTTP request")
+		h.ServeHTTP(w, r)
+	}
+	return http.HandlerFunc(fn)
+}
+
+func getAuthUsername(r *http.Request) string {
+	s := strings.SplitN(r.Header.Get(auth.NormalHeaders.Authorization), " ", 2)
+	if len(s) != 2 || s[0] != "Basic" {
+		return ""
+	}
+
+	b, err := base64.StdEncoding.DecodeString(s[1])
+	if err != nil {
+		return ""
+	}
+	pair := strings.SplitN(string(b), ":", 2)
+	if len(pair) != 2 {
+		return ""
+	}
+	return pair[0]
+}