Added HttpAuthFilter.php

HttpAuthFilter.php

@@ -0,0 +1,55 @@
+<?php
+/* Copyright 2013 Da:Sourcerer
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * HttpAuthFilter class
+ *
+ * @author Da:Sourcerer
+ * @version 1.0
+ * @license http://www.apache.org/licenses/LICENSE-2.0 ASL 2.0
+ */
+class HttpAuthFilter extends CFilter
+{
+	public $authModel='LoginForm';
+	public $realm;
+
+	public function preFilter($filterChain)
+	{
+		if(!Yii::app()->user->isGuest)
+			return true;
+
+		if(!array_key_exists('PHP_AUTH_USER', $_SERVER))
+			$this->sendAuthHeaders();
+
+		$model=new $this->authModel;
+		$model->username=$_SERVER['PHP_AUTH_USER'];
+		$model->password=$_SERVER['PHP_AUTH_PW'];
+
+		if(!$model->login())
+			$this->sendAuthHeaders();
+
+		return true;
+	}
+
+	protected function sendAuthHeaders()
+	{
+		if($this->realm===null)
+			$this->realm=Yii::app()->name;
+		$this->realm=addcslashes($this->realm, '"\\');
+		header(sprintf('WWW-Authenticate: Basic realm="%s"', $this->realm));
+		throw new CHttpException(401);
+	}
+}