Add login page.

source/webui/pages/login.php

@@ -0,0 +1,30 @@
+<?php
+
+$main = StatusBoard_Main::instance();
+$request = $main->request();
+$auth = $main->auth();
+
+$authenticated = false;
+$authentication_failed = false;
+
+if ($request->exists('do')) {
+    $username = StatusBoard_Main::issetelse($_POST['username'], Sihnon_Exception_InvalidParameters);
+    $password = StatusBoard_Main::issetelse($_POST['username'], Sihnon_Exception_InvalidParameters);
+    
+    try {
+        $auth->authenticate($username, $password);
+        $authenticated = true;
+        
+        StatusBoard_Page::redirect('home');
+        
+    } catch (Sihnon_Exception_UnknownUser $e) {
+        $authentication_failed = true;
+    } catch (Sihnon_Exception_IncorrectPassword $e) {
+        $authentication_failed = true;
+    }
+}
+
+$this->smarty->assign('authentication', $authenticated);
+$this->smarty->assign('authentication_failed', $authentication_failed);
+
+?>