added error handling support

threadr/login/index.php

@@ -19,7 +19,19 @@
         <h1> <center>ThreadR</center> </h1>
       </div>
       <div class="item-2 round-border">
-        <p>Login:</p>
+        <p>
+        <?php
+          if (isset($_GET['error'])){
+            if (error == "credentials"){
+              echo "Invalid credentials. Try again:";
+            }
+            if (error == "session"){
+              echo "Your session was closed. We are sorry for the inconvenience.";
+            }
+          } else {
+            echo "Login:";
+          }
+        ?></p>
         <form action="%CONTENT_DIR%/login/redirect.php" method="post">
           <input type="text" name="username" maxlength="20" placeholder="Username" />
           <input type="password" name="password" maxlength="256" placeholder="Password" />
@@ -30,7 +42,7 @@
       </div>
       <div class="item-3">
         <p></p>
-        <a href="%CONTENT_DIR%/signup/"> <button> Registrieren </button> </a>
+        <a href="%CONTENT_DIR%/signup/"> <button> Register </button> </a>
         <p></p>
       </div>
       <!-- <div class="item-4">