Do not rely on cookie path for session riding

Change-Id: Ib285a797485ec3180cb9dad0ade556078456073c
diff --git a/Changes b/Changes
index f91d5d9..7b57cfb 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,7 @@
     - Change default api port to 443.
     - Update dependency of logback-classic.
     - Add warning regarding protected data.
+    - Do not rely on cookie path for session riding.
 
       This fixes a security issue! Please update!
 
diff --git a/src/main/java/de/ids_mannheim/korap/plkexport/Service.java b/src/main/java/de/ids_mannheim/korap/plkexport/Service.java
index 2e3deb0..cad662b 100644
--- a/src/main/java/de/ids_mannheim/korap/plkexport/Service.java
+++ b/src/main/java/de/ids_mannheim/korap/plkexport/Service.java
@@ -634,19 +634,19 @@
         if (cookies == null)
             return "";
         
-        String cookiePath = prop.getProperty("cookie.path", "");
+        String cookieName = prop.getProperty("cookie.name", "");
 
         // Iterate through all cookies for a Kalamar session
         for (int i = 0; i < cookies.length; i++) {
 
-            // Check the valid path (often path is not set when sent)
-            if (cookiePath != "" && cookies[i].getPath() != "" &&
-                cookies[i].getPath() != cookiePath)
+            // Check the valid name and ignore irrelevant cookies
+            if (cookieName == "") {
+                if (!cookies[i].getName().equals("kalamar")) {
+                    continue;
+                }
+            } else if (!cookies[i].getName().equals(cookieName)) {
                 continue;
-
-            // Ignore irrelevant cookies
-            if (!cookies[i].getName().matches("^kalamar(-.+?)?$"))
-                continue;
+            };
 
             // Get the value
             String b64 = cookies[i].getValue();