From 124ba1ba714220322c65625012c564f89b75bfc9 Mon Sep 17 00:00:00 2001
From: Francis Lavoie <lavofr@gmail.com>
Date: Wed, 14 Jul 2021 13:07:38 -0400
Subject: [PATCH] logging: Prep for `common_log` removal (#4149)

See https://github.com/caddyserver/caddy/issues/4148#issuecomment-833207811
---
 modules/caddyhttp/server.go | 3 +++
 modules/logging/encoders.go | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/modules/caddyhttp/server.go b/modules/caddyhttp/server.go
index 9dc1028e..80948325 100644
--- a/modules/caddyhttp/server.go
+++ b/modules/caddyhttp/server.go
@@ -184,8 +184,11 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				log = logger.Error
 			}
 
+			userID, _ := repl.GetString("http.auth.user.id")
+
 			log("handled request",
 				zap.String("common_log", repl.ReplaceAll(commonLogFormat, commonLogEmptyValue)),
+				zap.String("user_id", userID),
 				zap.Duration("duration", duration),
 				zap.Int("size", wrec.Size()),
 				zap.Int("status", wrec.Status()),
diff --git a/modules/logging/encoders.go b/modules/logging/encoders.go
index 40e86bdc..8b2b44c1 100644
--- a/modules/logging/encoders.go
+++ b/modules/logging/encoders.go
@@ -307,6 +307,8 @@ func (lec *LogEncoderConfig) ZapcoreEncoderConfig() zapcore.EncoderConfig {
 			timeFormat = "2006/01/02 15:04:05.000"
 		case "wall_nano":
 			timeFormat = "2006/01/02 15:04:05.000000000"
+		case "common_log":
+			timeFormat = "02/Jan/2006:15:04:05 -0700"
 		}
 		timeFormatter = func(ts time.Time, encoder zapcore.PrimitiveArrayEncoder) {
 			encoder.AppendString(ts.UTC().Format(timeFormat))