Added SEO to the demo app and added the Facebook and SEO extensions.

demo/.htaccess

+Options +followSymLinks
+IndexIgnore */*
+
+<ifModule mod_rewrite.c>
+
+	RewriteEngine on
+
+	# if a directory or a file exists, use it directly
+	RewriteCond %{REQUEST_FILENAME} !-f
+	RewriteCond %{REQUEST_FILENAME} !-d
+
+	# otherwise forward it to index.php
+	RewriteRule ^(.*)$ index.php
+
+</ifModule>
\ No newline at end of file

demo/protected/config/main.php

@@ -32,6 +32,12 @@ return array(
 		'errorHandler'=>array(
 			'errorAction'=>'site/error',
 		),
+		'fb'=>array(
+			'class'=>'ext.facebook.components.FacebookConnect',
+			'appID'=>'106265262835735',
+			'appSecret'=>'941d6e0fa554b725ec258311e4ddc4b6',
+			'appNamespace'=>'yii-bootstrap',
+		),
 		'log'=>array(
 			'class'=>'CLogRouter',
 			'routes'=>array(
@@ -47,14 +53,21 @@ return array(
 				*/
 			),
 		),
+		'urlManager'=>array(
+			'showScriptName'=>false,
+			'urlFormat'=>'path',
+			'urlSuffix'=>'.html',
+			'rules'=>array(
+				'demo'=>'site/index',
+				'setup'=>'site/setup',
+			),
+		),
 		'user'=>array(
 			'allowAutoLogin'=>true,
 		),
 	),
 
-	// application-level parameters that can be accessed
-	// using Yii::app()->params['paramName']
+	// Application-level parameters
 	'params'=>array(
-		'adminEmail'=>'webmaster@example.com',
 	),
 );
\ No newline at end of file

demo/protected/controllers/SiteController.php

@@ -3,7 +3,19 @@
 class SiteController extends Controller
 {
 	/**
+	 * Declares the behaviors.
+	 * @return array the behaviors
+	 */
+	public function behaviors()
+	{
+		return array(
+			'seo'=>'ext.seo.components.SeoControllerBehavior',
+		);
+	}
+
+	/**
 	 * Declares class-based actions.
+	 * @return array the actions
 	 */
 	public function actions()
 	{

demo/protected/extensions/facebook/LICENSE.txt

+Copyright (c) 2010, Christoffer Niska
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the Christoffer Niska nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file

demo/protected/extensions/facebook/components/FacebookConnect.php

+<?php
+/**
+ * FacebookConnect class file.
+ * @author Christoffer Niska <ChristofferNiska@gmail.com>
+ * @copyright Copyright &copy; Christoffer Niska 2011-
+ * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+ * @package facebook.components
+ */
+
+/**
+ * Facebook connection application component.
+ */
+require(dirname(__FILE__) . '/../lib/facebook/src/facebook.php'); // Yii::import() will not work in this case
+class FacebookConnect extends CApplicationComponent
+{
+	/**
+	 * @var string Facebook application id.
+	 */
+	public $appID;
+	/**
+	 * @var string Facebook application secret.
+	 */
+	public $appSecret;
+	/**
+	 * @var string the application namespace.
+	 */
+	public $appNamespace;
+	/**
+	 * @var boolean whether file uploads are enabled.
+	 */
+	public $fileUpload;
+
+	protected $_facebook;
+
+	/**
+	 * Initializes this component.
+	 */
+	public function init()
+	{
+		$config = array(
+			'appId' => $this->appID,
+			'secret' => $this->appSecret
+		);
+
+		if ($this->fileUpload !== null)
+			$config['fileUpload'] = $this->fileUpload;
+
+		$this->_facebook = new Facebook($config);
+	}
+
+	/**
+	 * Registers an Open Graph action with Facebook.
+	 * @param string $action the action to register.
+	 * @param array $params the query parameters.
+	 */
+	public function registerAction($action, $params=array())
+	{
+		$this->api('me/'.$this->appNamespace.':'.$action, $params);
+	}
+
+	/**
+	 * Calls the Facebook API.
+	 * @param string $query the query to send.
+	 * @param array $params the query paramters.
+	 * @return array the response.
+	 */
+	public function api($query, $params=array())
+	{
+		$data = array();
+
+		if ($params !== array())
+			$query .= '?'.http_build_query($params);
+
+		try
+		{
+			$data = $this->_facebook->api('/'.$query);
+		}
+		catch (FacebookApiException $e)
+		{
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Returns the locale based on the application language.
+	 * @return string the locale.
+	 */
+	public function getLocale()
+	{
+		$language = Yii::app()->language;
+
+		if ($language !== null)
+		{
+			$pieces = explode('_', $language);
+			if (count($pieces) === 2)
+				return $pieces[0].'_'.strtoupper($pieces[1]);
+		}
+
+		return 'en_US';
+	}
+
+	/**
+	 * Returns the Facebook application instance.
+	 * @return Facebook the instance
+	 */
+	public function getFacebook()
+	{
+		return $this->_facebook;
+	}
+}

demo/protected/extensions/facebook/lib/facebook/changelog.md

+Facebook PHP SDK (v.3.0.0)
+==========================
+
+The new PHP SDK (v3.0.0) is a major upgrade to the older one (v2.2.x):
+
+- Uses OAuth authentication flows instead of our legacy authentication flow
+- Consists of two classes. The first (class BaseFacebook) maintains the core of the upgrade, and the second one (class Facebook) is a small subclass that uses PHP sessions to store the user id and access token.
+
+If you’re currently using the PHP SDK (v2.2.x) for authentication, you will recall that the login code looked like this:
+
+     $facebook = new Facebook(…);
+     $session = $facebook->getSession();
+     if ($session) {
+       // proceed knowing you have a valid user session
+     } else {
+       // proceed knowing you require user login and/or authentication
+     }
+
+The login code is now:
+
+     $facebook = new Facebook(…);
+     $user = $facebook->getUser();
+     if ($user) {
+       // proceed knowing you have a logged in user who's authenticated
+     } else {
+       // proceed knowing you require user login and/or authentication
+     }
+

demo/protected/extensions/facebook/lib/facebook/examples/example.php

+<?php
+/**
+ * Copyright 2011 Facebook, Inc.
+ *
+ * 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.
+ */
+
+require '../src/facebook.php';
+
+// Create our Application instance (replace this with your appId and secret).
+$facebook = new Facebook(array(
+  'appId'  => '344617158898614',
+  'secret' => '6dc8ac871858b34798bc2488200e503d',
+));
+
+// Get User ID
+$user = $facebook->getUser();
+
+// We may or may not have this data based on whether the user is logged in.
+//
+// If we have a $user id here, it means we know the user is logged into
+// Facebook, but we don't know if the access token is valid. An access
+// token is invalid if the user logged out of Facebook.
+
+if ($user) {
+  try {
+    // Proceed knowing you have a logged in user who's authenticated.
+    $user_profile = $facebook->api('/me');
+  } catch (FacebookApiException $e) {
+    error_log($e);
+    $user = null;
+  }
+}
+
+// Login or logout url will be needed depending on current user state.
+if ($user) {
+  $logoutUrl = $facebook->getLogoutUrl();
+} else {
+  $loginUrl = $facebook->getLoginUrl();
+}
+
+// This call will always work since we are fetching public data.
+$naitik = $facebook->api('/naitik');
+
+?>
+<!doctype html>
+<html xmlns:fb="http://www.facebook.com/2008/fbml">
+  <head>
+    <title>php-sdk</title>
+    <style>
+      body {
+        font-family: 'Lucida Grande', Verdana, Arial, sans-serif;
+      }
+      h1 a {
+        text-decoration: none;
+        color: #3b5998;
+      }
+      h1 a:hover {
+        text-decoration: underline;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>php-sdk</h1>
+
+    <?php if ($user): ?>
+      <a href="<?php echo $logoutUrl; ?>">Logout</a>
+    <?php else: ?>
+      <div>
+        Login using OAuth 2.0 handled by the PHP SDK:
+        <a href="<?php echo $loginUrl; ?>">Login with Facebook</a>
+      </div>
+    <?php endif ?>
+
+    <h3>PHP Session</h3>
+    <pre><?php print_r($_SESSION); ?></pre>
+
+    <?php if ($user): ?>
+      <h3>You</h3>
+      <img src="https://graph.facebook.com/<?php echo $user; ?>/picture">
+
+      <h3>Your User Object (/me)</h3>
+      <pre><?php print_r($user_profile); ?></pre>
+    <?php else: ?>
+      <strong><em>You are not Connected.</em></strong>
+    <?php endif ?>
+
+    <h3>Public profile of Naitik</h3>
+    <img src="https://graph.facebook.com/naitik/picture">
+    <?php echo $naitik['name']; ?>
+  </body>
+</html>

demo/protected/extensions/facebook/lib/facebook/examples/with_js_sdk.php

+<?php
+
+require '../src/facebook.php';
+
+$facebook = new Facebook(array(
+  'appId'  => '344617158898614',
+  'secret' => '6dc8ac871858b34798bc2488200e503d',
+));
+
+// See if there is a user from a cookie
+$user = $facebook->getUser();
+
+if ($user) {
+  try {
+    // Proceed knowing you have a logged in user who's authenticated.
+    $user_profile = $facebook->api('/me');
+  } catch (FacebookApiException $e) {
+    echo '<pre>'.htmlspecialchars(print_r($e, true)).'</pre>';
+    $user = null;
+  }
+}
+
+?>
+<!DOCTYPE html>
+<html xmlns:fb="http://www.facebook.com/2008/fbml">
+  <body>
+    <?php if ($user) { ?>
+      Your user profile is
+      <pre>
+        <?php print htmlspecialchars(print_r($user_profile, true)) ?>
+      </pre>
+    <?php } else { ?>
+      <fb:login-button></fb:login-button>
+    <?php } ?>
+    <div id="fb-root"></div>
+    <script>
+      window.fbAsyncInit = function() {
+        FB.init({
+          appId: '<?php echo $facebook->getAppID() ?>',
+          cookie: true,
+          xfbml: true,
+          oauth: true
+        });
+        FB.Event.subscribe('auth.login', function(response) {
+          window.location.reload();
+        });
+        FB.Event.subscribe('auth.logout', function(response) {
+          window.location.reload();
+        });
+      };
+      (function() {
+        var e = document.createElement('script'); e.async = true;
+        e.src = document.location.protocol +
+          '//connect.facebook.net/en_US/all.js';
+        document.getElementById('fb-root').appendChild(e);
+      }());
+    </script>
+  </body>
+</html>

demo/protected/extensions/facebook/lib/facebook/readme.md

+We have created a new repository for this project: https://github.com/facebook/facebook-php-sdk.  Please update anything you have pointing at this repostory to this location before April 1, 2012.
+
+Facebook PHP SDK (v.3.1.1)
+==========================
+
+The [Facebook Platform](http://developers.facebook.com/) is
+a set of APIs that make your app more social
+
+This repository contains the open source PHP SDK that allows you to access Facebook Platform from your PHP app. Except as otherwise noted, the Facebook PHP SDK
+is licensed under the Apache Licence, Version 2.0
+(http://www.apache.org/licenses/LICENSE-2.0.html)
+
+
+Usage
+-----
+
+The [examples][examples] are a good place to start. The minimal you'll need to
+have is:
+
+    require 'facebook-php-sdk/src/facebook.php';
+
+    $facebook = new Facebook(array(
+      'appId'  => 'YOUR_APP_ID',
+      'secret' => 'YOUR_APP_SECRET',
+    ));
+
+    // Get User ID
+    $user = $facebook->getUser();
+
+To make [API][API] calls:
+
+    if ($user) {
+      try {
+        // Proceed knowing you have a logged in user who's authenticated.
+        $user_profile = $facebook->api('/me');
+      } catch (FacebookApiException $e) {
+        error_log($e);
+        $user = null;
+      }
+    }
+
+Login or logout url will be needed depending on current user state.
+
+    if ($user) {
+      $logoutUrl = $facebook->getLogoutUrl();
+    } else {
+      $loginUrl = $facebook->getLoginUrl();
+    }
+
+[examples]: http://github.com/facebook/facebook-php-sdk/blob/master/examples/example.php
+[API]: http://developers.facebook.com/docs/api
+
+
+Tests
+-----
+
+In order to keep us nimble and allow us to bring you new functionality, without
+compromising on stability, we have ensured full test coverage of the SDK.
+We are including this in the open source repository to assure you of our
+commitment to quality, but also with the hopes that you will contribute back to
+help keep it stable. The easiest way to do so is to file bugs and include a
+test case.
+
+The tests can be executed by using this command from the base directory:
+
+    phpunit --stderr --bootstrap tests/bootstrap.php tests/tests.php
+
+
+Contributing
+===========
+For us to accept contributions you will have to first have signed the [Contributor License Agreement](https://developers.facebook.com/opensource/cla).
+
+When commiting, keep all lines to less than 80 characters, and try to follow the existing style.
+
+Before creating a pull request, squash your commits into a single commit.
+
+Add the comments where needed, and provide ample explanation in the commit message.
+
+
+Report Issues/Bugs
+===============
+[Bugs](https://developers.facebook.com/bugs)
+
+[Questions](http://facebook.stackoverflow.com)
+

demo/protected/extensions/facebook/lib/facebook/src/facebook.php

+<?php
+/**
+ * Copyright 2011 Facebook, Inc.
+ *
+ * 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.
+ */
+
+require_once "base_facebook.php";
+
+/**
+ * Extends the BaseFacebook class with the intent of using
+ * PHP sessions to store user ids and access tokens.
+ */
+class Facebook extends BaseFacebook
+{
+  /**
+   * Identical to the parent constructor, except that
+   * we start a PHP session to store the user ID and
+   * access token if during the course of execution
+   * we discover them.
+   *
+   * @param Array $config the application configuration.
+   * @see BaseFacebook::__construct in facebook.php
+   */
+  public function __construct($config) {
+    if (!session_id()) {
+      session_start();
+    }
+    parent::__construct($config);
+  }
+
+  protected static $kSupportedKeys =
+    array('state', 'code', 'access_token', 'user_id');
+
+  /**
+   * Provides the implementations of the inherited abstract
+   * methods.  The implementation uses PHP sessions to maintain
+   * a store for authorization codes, user ids, CSRF states, and
+   * access tokens.
+   */
+  protected function setPersistentData($key, $value) {
+    if (!in_array($key, self::$kSupportedKeys)) {
+      self::errorLog('Unsupported key passed to setPersistentData.');
+      return;
+    }
+
+    $session_var_name = $this->constructSessionVariableName($key);
+    $_SESSION[$session_var_name] = $value;
+  }
+
+  protected function getPersistentData($key, $default = false) {
+    if (!in_array($key, self::$kSupportedKeys)) {
+      self::errorLog('Unsupported key passed to getPersistentData.');
+      return $default;
+    }
+
+    $session_var_name = $this->constructSessionVariableName($key);
+    return isset($_SESSION[$session_var_name]) ?
+      $_SESSION[$session_var_name] : $default;
+  }
+
+  protected function clearPersistentData($key) {
+    if (!in_array($key, self::$kSupportedKeys)) {
+      self::errorLog('Unsupported key passed to clearPersistentData.');
+      return;
+    }
+
+    $session_var_name = $this->constructSessionVariableName($key);
+    unset($_SESSION[$session_var_name]);
+  }
+
+  protected function clearAllPersistentData() {
+    foreach (self::$kSupportedKeys as $key) {
+      $this->clearPersistentData($key);
+    }
+  }
+
+  protected function constructSessionVariableName($key) {
+    return implode('_', array('fb',
+                              $this->getAppId(),
+                              $key));
+  }
+}

demo/protected/extensions/facebook/lib/facebook/src/fb_ca_chain_bundle.crt

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demo/protected/extensions/facebook/lib/facebook/tests/bootstrap.php

+<?php
+
+$base = realpath(dirname(__FILE__) . '/..');
+require "$base/src/base_facebook.php";
+require "$base/src/facebook.php";

demo/protected/extensions/seo/LICENSE.txt

+Copyright (c) 2010, Christoffer Niska
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the Christoffer Niska nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file

demo/protected/extensions/seo/components/SeoControllerBehavior.php

+<?php
+/**
+ * SeoControllerBehavior class file.
+ * @author Christoffer Niska <ChristofferNiska@gmail.com>
+ * @copyright Copyright &copy; Christoffer Niska 2011-
+ * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+ * @package seo.components
+ */
+
+class SeoControllerBehavior extends CBehavior
+{
+	/**
+	 * @property string the page meta title.
+	 */
+	public $metaTitle;
+	/**
+	 * @property string the page meta description.
+	 */
+	public $metaDescription;
+	/**
+	 * @property string the page meta keywords.
+	 */
+	public $metaKeywords;
+	/**
+	 * @property array the page meta properties.
+	 */
+	public $metaProperties = array();
+	/**
+	 * @property string the canonical URL.
+	 */
+	public $canonical;
+
+	/**
+	 * Adds a meta property to the current page.
+	 * @param string $name the property name
+	 * @param string $content the property content
+	 */
+	public function addMetaProperty($name, $content)
+	{
+		$this->metaProperties[$name] = $content;
+	}
+}

demo/protected/extensions/seo/components/SeoFilter.php

+<?php
+/**
+ * SeoFilter class file.
+ * @author Christoffer Niska <ChristofferNiska@gmail.com>
+ * @copyright Copyright &copy; Christoffer Niska 2011-
+ * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+ * @package seo.components
+ */
+
+class SeoFilter extends CFilter
+{
+	/**
+	 * Performs the pre-action filtering.
+	 * @param CFilterChain $filterChain the filter chain that the filter is on.
+	 * @return boolean whether the filtering process should continue and the action
+	 * should be executed.
+	 */
+	protected function preFilter($filterChain)
+	{
+		$controller = $filterChain->controller;
+
+		if (isset($_GET['id']) && method_exists($controller, 'loadModel'))
+		{
+			$model = $controller->loadModel($_GET['id']);
+			$url = $model->getUrl();
+
+			if (strpos(Yii::app()->request->getRequestUri(), $url) === false)
+				$controller->redirect($url, true, 301);
+		}
+
+		return parent::preFilter($filterChain);
+	}
+}

demo/protected/extensions/seo/components/SeoRecordBehavior.php

+<?php
+/**
+ * SeoRecordBehavior class file.
+ * @author Christoffer Niska <ChristofferNiska@gmail.com>
+ * @copyright Copyright &copy; Christoffer Niska 2011-
+ * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+ * @package seo.components
+ */
+
+class SeoRecordBehavior extends CActiveRecordBehavior
+{
+	/**
+	 * @property string the route used for SEO.
+	 */
+	public $route;
+	/**
+	 * @property array GET parameters used for SEO.
+	 */
+	public $params = array();
+
+	/**
+	 * Returns the URL for this model.
+	 * @param array $params additional GET parameters (name=>value)
+	 * @return string the URL
+	 */
+	public function getUrl($params=array())
+	{
+		return Yii::app()->createUrl($this->route, CMap::mergeArray($params, $this->params));
+	}
+
+	/**
+	 * Returns the absolute URL for this model.
+	 * @param array $params additional GET parameters (name=>value)
+	 * @return string the URL
+	 */
+	public function getAbsoluteUrl($params=array())
+	{
+		return Yii::app()->createAbsoluteUrl($this->route, CMap::mergeArray($params, $this->params));
+	}
+}

demo/protected/extensions/seo/widgets/SeoHead.php

+<?php
+/**
+ * SeoHead class file.
+ * @author Christoffer Niska <ChristofferNiska@gmail.com>
+ * @copyright Copyright &copy; Christoffer Niska 2011-
+ * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+ * @package seo.widgets
+ */
+
+class SeoHead extends CWidget
+{
+	/**
+	 * @property array the configuration for the title. 
+	 * Defaults to <code>array('class'=>'ext.seo.widgets.SeoTitle')</code>.
+	 * @see enableTitle
+	 */
+	public $title = array('class'=>'ext.seo.widgets.SeoTitle');
+	/**
+	 * @property boolean whether to enable the title.
+	 */
+	public $enableTitle = true;
+	/**
+	 * @property array the page http-equivs.
+	 */
+	public $httpEquivs = array();
+	/**
+	 * @property string the page meta title.
+	 */
+	public $defaultTitle;
+	/**
+	 * @property string the page meta description.
+	 */
+	public $defaultDescription;
+	/**
+	 * @property string the page meta keywords.
+	 */
+	public $defaultKeywords;
+	/**
+	 * @property array the page meta properties.
+	 */
+	public $defaultProperties = array();
+
+	protected $_title;
+	protected $_description;
+	protected $_keywords;
+	protected $_properties = array();
+	protected $_canonical;
+
+	/**
+	 * Initializes the widget.
+	 */
+	public function init()
+	{
+		$behavior = $this->controller->asa('seo');
+
+		if ($behavior !== null && $behavior->metaTitle !== null)
+			$this->_title = $behavior->metaTitle;
+		else if ($this->defaultDescription !== null)
+			$this->_title = $this->defaultTitle;
+
+		if ($behavior !== null && $behavior->metaDescription !== null)
+			$this->_description = $behavior->metaDescription;
+		else if ($this->defaultDescription !== null)
+			$this->_description = $this->defaultDescription;
+
+		if ($behavior !== null && $behavior->metaKeywords !== null)
+			$this->_keywords = $behavior->metaKeywords;
+		else if ($this->defaultKeywords !== null)
+			$this->_keywords = $this->defaultKeywords;
+
+		if ($behavior !== null)
+			$this->_properties = CMap::mergeArray($behavior->metaProperties, $this->defaultProperties);
+		else
+			$this->_properties = $this->defaultProperties;
+
+		if ($behavior !== null && $behavior->canonical !== null)
+			$this->_canonical = $behavior->canonical;
+	}
+
+	/**
+	 * Runs the widget.
+	 */
+	public function run()
+	{
+		$this->renderContent();
+	}
+
+	/**
+	 * Renders the widget content.
+	 */
+	protected function renderContent()
+	{
+		$this->renderTitle().PHP_EOL;
+
+		foreach ($this->httpEquivs as $name => $content)
+			echo '<meta http-equiv="'.$name.'" content="'.$content.'" />'.PHP_EOL;
+
+		if ($this->_description !== null)
+			echo CHtml::metaTag($this->_title, 'title').PHP_EOL;
+
+		if ($this->_description !== null)
+			echo CHtml::metaTag($this->_description, 'description').PHP_EOL;
+
+		if ($this->_keywords !== null)
+			echo CHtml::metaTag($this->_keywords, 'keywords').PHP_EOL;
+
+		foreach ($this->_properties as $name => $content)
+			echo '<meta property="'.$name.'" content="'.$content.'" />'.PHP_EOL; // we can't use Yii's method for this.
+
+		if ($this->_canonical !== null)
+			$this->renderCanonical();
+	}
+	
+	/**
+	 * Renders the page title.
+	 */
+	protected function renderTitle()
+	{
+		if (!$this->enableTitle)
+			return;
+
+		$title = array();
+		$class = 'ext.seo.widgets.SeoTitle';
+
+		if (is_string($this->title))
+			$class = $this->title;
+		else if (is_array($this->title))
+		{
+			$title = $this->title;
+			if (isset($title['class']))
+			{
+				$class = $title['class'];
+				unset($title['class']);
+			}
+		}
+
+		$this->widget($class, $title);
+	}
+
+	/**
+	 * Renders the canonical link tag.
+	 */
+	protected function renderCanonical()
+	{
+		$request = Yii::app()->getRequest();
+		$url = $request->getUrl();
+
+		// Make sure that we do not create a recursive canonical redirect.
+		if ($this->_canonical !== $url && $this->_canonical !== $request->getHostInfo().$url)
+			echo '<link rel="canonical" href="'.$this->_canonical.'" />'.PHP_EOL;
+	}
+}

demo/protected/extensions/seo/widgets/SeoTitle.php

+<?php
+/**
+ * SeoTitle class file.
+ * @author Christoffer Niska <ChristofferNiska@gmail.com>
+ * @copyright Copyright &copy; Christoffer Niska 2011-
+ * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+ * @package seo.widgets
+ * @since 0.9.1
+ */
+
+class SeoTitle extends CWidget
+{
+	/**
+	 * @property string the page title separator.
+	 */
+	public $separator = ' - ';
+
+	/**
+	 * Runs the widget.
+	 */
+	public function run()
+	{
+		$parts = array();
+		$controller = $this->getController();
+		$pageTitle = $controller->pageTitle;
+
+		// We do not want to use the default page title generated by Yii
+		// because it is not very SEO friendly.
+		if ($this->isDefaultPageTitle($pageTitle, $controller))
+			$pageTitle = null;
+
+		if ($pageTitle !== null)
+		{
+			if (!is_array($pageTitle))
+				$pageTitle = array($pageTitle);
+
+			$parts = $pageTitle;
+		}
+		else
+		{
+			if (($breadcrumbs = $controller->breadcrumbs) !== array())
+			{
+				foreach ($breadcrumbs as $key => $value)
+					$parts[] = is_string($key) || is_array($value) ? $key : $value;
+
+				$parts = array_reverse($parts);
+			}
+			else
+			{
+				$name = ucfirst($controller->getId());
+				$action = $controller->getAction();
+				$module = $controller->getModule();
+
+				if ($action !== null && strcasecmp($action->getId(), $controller->defaultAction))
+					$parts[] = ucfirst($action->getId()).' '.$name;
+				else if ($module !== null && strcasecmp($name, $module->defaultController))
+					$parts[] = $name;
+
+				if ($module !== null)
+				{
+					$pieces = explode('/', $module->getId());
+					foreach (array_reverse($pieces) as $piece)
+						$parts[] = ucfirst($piece);
+				}
+			}
+
+			$parts[] = Yii::app()->name;
+		}
+
+		echo '<title>'.implode($parts, $this->separator).'</title>';
+	}
+
+	/**
+	 * Returns whether or not the given title is the default page title.
+	 * @param mixed $pageTitle the page title
+	 * @param CController $controller the controller
+	 * @return bool
+	 */
+	protected function isDefaultPageTitle($pageTitle, $controller)
+	{
+		$name = ucfirst(basename($controller->getId()));
+		return is_string($pageTitle)
+				&& ($pageTitle === Yii::app()->name.' - '.ucfirst($controller->getAction()->getId()).' '.$name
+				|| $pageTitle === Yii::app()->name.' - '.$name);
+	}
+}

demo/protected/views/layouts/main.php

 <!doctype html>
 <html>
 <head>
-	<title><?php echo CHtml::encode($this->pageTitle); ?></title>
+	<?php Yii::app()->controller->widget('ext.seo.widgets.SeoHead', array(
+		'defaultDescription'=>'Yii-Bootstrap is an extension for Yii that focuses on server-side that allows you to easily use Bootstrap in your Yii applications.',
+		'httpEquivs'=>array('Content-Type'=>'text/html; charset=utf-8', 'Content-Language'=>'en-US'),
+	)); ?>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 	<meta name="language" content="en" />
 	<!--[if lt IE 9]>
 		<script type="text/javascript" src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
 	<![endif]-->
-	<?php Yii::app()->bootstrap->registerCss(); ?>
-	<?php Yii::app()->bootstrap->registerResponsiveCss(); ?>
 	<link rel="stylesheet/less" type="text/css" href="<?php echo Yii::app()->request->baseUrl; ?>/less/styles.less" />
 	<script type="text/javascript" src="<?php echo Yii::app()->request->baseUrl; ?>/js/less-1.2.1.min.js"></script>
 	<script type="text/javascript">
@@ -104,9 +105,11 @@
 	<footer>
 
 		<p class="powered">
-			Powered by <?php echo CHtml::link('Yii 1.1.9', 'http://www.yiiframework.com', array('target'=>'_blank')); ?> //
+			Powered by <?php echo CHtml::link('Yii PHP framework 1.1.9', 'http://www.yiiframework.com', array('target'=>'_blank')); ?> //
 			<?php echo CHtml::link('jQuery 1.7.1', 'http://www.jquery.com', array('target'=>'_blank')); ?> //
 			<?php echo CHtml::link('Yii-Bootstrap 0.9.8', 'http://www.yiiframework.com/extension/bootstrap', array('target'=>'_blank')); ?> //
+			<?php echo CHtml::link('Yii-SEO 0.9.3', 'http://www.yiiframework.com/extension/seo', array('target'=>'_blank')); ?> //
+			<?php echo CHtml::link('Yii-Facebook 0.9.1', '#', array('rel'=>'tooltip', 'title'=>'Link available soon')); ?> //
 			<?php echo CHtml::link('Bootstrap 2', 'http://twitter.github.com/bootstrap', array('target'=>'_blank')); ?> //
 			<?php echo CHtml::link('LESS 1.2.1', 'http://www.lesscss.org', array('target'=>'_blank')); ?>
 		</p>

demo/protected/views/site/index.php

-<?php $this->pageTitle=Yii::app()->name; ?>
+<?php
+$this->pageTitle = array('Demo', Yii::app()->name);
+$this->addMetaProperty('og:title', Yii::app()->name);
+$this->addMetaProperty('og:type', 'website');
+$this->addMetaProperty('og:url', Yii::app()->request->requestUri);
+$this->addMetaProperty('og:site_name', Yii::app()->name);
+$this->addMetaProperty('og:locale',Yii::app()->fb->locale);
+$this->addMetaProperty('fb:app_id', Yii::app()->fb->appID);
+?>
 
 <section id="bootAlert">
 

demo/protected/views/site/setup.php

-<?php $this->pageTitle = Yii::app()->name.' - Setup'; ?>
+<?php
+$this->pageTitle = array('Setup', Yii::app()->name);
+$this->addMetaProperty('og:title', 'Setup - '.Yii::app()->name);
+$this->addMetaProperty('og:type', 'website');
+$this->addMetaProperty('og:url', Yii::app()->request->requestUri);
+$this->addMetaProperty('og:site_name', Yii::app()->name);
+$this->addMetaProperty('og:locale',Yii::app()->fb->locale);
+$this->addMetaProperty('fb:app_id', Yii::app()->fb->appID);
+?>
 
 <section id="setup">