[MRM-1268] X-Forwarded-Host handling when having more than one proxy

submitted by Andreas Baumann

o taking just the outermost (first one) proxy in the 'X-Forwarded-Host' HTTP field


git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@898212 13f79535-47bb-0310-9956-ffa450edef68

archiva-modules/archiva-web/archiva-webapp/src/main/java/org/apache/maven/archiva/web/util/ContextUtils.java

@@ -111,6 +111,12 @@ public class ContextUtils
             }
             return name;
         }
+        else
+        {
+            // respect chains of proxies, return first one (as it's the outermost visible one)
+            String[] hosts = name.split( "," );
+            name = hosts[0].trim();
+        }
         return name;
     }
 }