flag authorization

service/src/main/java/api/TasksResource.java

@@ -38,13 +38,14 @@ public class TasksResource
     }
 
     @GET
-    public List<Task> getTasks(@Auth User user) {
+    public List<Task> getTasks() {
         return tasksRepository.getAll();
     }
 
     @POST
-    public boolean submitSolution(String flag) throws Exception {
-        return flagChecker.checkFlag(flag);
+    public boolean submitSolution(@Auth User user,
+                                  String flag) throws Exception {
+        return flagChecker.checkFlag(user.getName(), flag);
     }
 
 }

service/src/main/java/core/FlagChecker.java

@@ -41,7 +41,8 @@ public class FlagChecker {
         } catch (NoSuchAlgorithmException e) {
             e.printStackTrace();
         }
-        return Hex.encodeHexString(md5.digest(combinedStrings.getBytes()));
+        String encodedHash = Hex.encodeHexString(md5.digest(combinedStrings.getBytes()));
+        return encodedHash;
     }
 
     private void acceptSolution(String username, Task task) {
@@ -67,8 +68,7 @@ public class FlagChecker {
         return false;
     }
 
-    public boolean checkFlag(String flagValue) throws Exception {
-        String username = "gpietrus";   //todo
+    public boolean checkFlag(String username, String flagValue) throws Exception {
         String hash = calculateHashValue(username, flagValue);
         return compareHash(hash, username);
     }