Add the referrer for debugging and statistical purposes

yuzutech · Apr 10, 2021 · f5c91ac · f5c91ac
1 parent 52d7641
commit f5c91ac
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/server/src/main/java/io/kroki/server/log/Logging.java b/server/src/main/java/io/kroki/server/log/Logging.java
@@ -30,6 +30,10 @@ public void requestReceived(RoutingContext routingContext, String serviceName) {
       if (userAgent != null) {
         MDC.put("user_agent", userAgent);
       }
+      String referer = request.getHeader("Referer");
+      if (referer != null) {
+        MDC.put("referrer", referer);
+      }
       logger.info("Request received {} {}", request.method(), request.path());
     } finally {
       MDC.remove("action");
@@ -55,6 +59,10 @@ public void convert(RoutingContext routingContext, long start, String serviceNam
       if (userAgent != null) {
         MDC.put("user_agent", userAgent);
       }
+      String referer = request.getHeader("Referer");
+      if (referer != null) {
+        MDC.put("referrer", referer);
+      }
       logger.info("Convert took {}ms", took);
     } finally {
       MDC.remove("action");
@@ -80,6 +88,10 @@ public void error(RoutingContext routingContext, int errorCode, String errorMess
       if (userAgent != null) {
         MDC.put("user_agent", userAgent);
       }
+      String referer = request.getHeader("Referer");
+      if (referer != null) {
+        MDC.put("referrer", referer);
+      }
       if (failure != null) {
         MDC.put("failure_class_name", failure.getClass().getName());
         logger.error("An error occurred", failure);
@@ -116,6 +128,4 @@ public void delegate(HttpResponse<Buffer> httpResponse, String host, int port, S
       MDC.remove("error_message");
     }
   }
-
-
 }