moved twitterservice into core

git-svn-id: http://code.elgg.org/elgg/trunk@7930 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 134 insertions, 0 deletions

diff --git a/mod/twitterservice/start.php b/mod/twitterservice/start.php
new file mode 100644
index 000000000..83e98d618
--- /dev/null
+++ b/mod/twitterservice/start.php
@@ -0,0 +1,134 @@
+<?php
+/**
+ * Elgg Twitter Service
+ * This service plugin allows users to authenticate their Elgg account with Twitter.
+ * 
+ * @package TwitterService
+ * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+ * @copyright Curverider Ltd 2008-2010
+ */
+
+register_elgg_event_handler('init','system','twitterservice_init');
+function twitterservice_init() {
+	global $CONFIG;
+	$notice_id = 'twitter_services_disable';
+	
+	if (!is_plugin_enabled('oauth_lib')) {
+		// disable the plugin
+		disable_plugin('twitterservice');
+		
+		// alert the admin
+		if (!elgg_admin_notice_exists($notice_id)) {
+			elgg_add_admin_notice($notice_id, elgg_echo('twitterservice:requires_oauth'));
+		}
+	} else {
+		// cleanup notices
+		elgg_delete_admin_notice($notice_id);
+		
+		// require libraries
+		require_once "{$CONFIG->pluginspath}twitterservice/vendors/twitteroauth/twitterOAuth.php";
+		require_once "{$CONFIG->pluginspath}twitterservice/twitterservice_lib.php";
+		
+		// extend site views
+		elgg_extend_view('metatags', 'twitterservice/metatags');
+		elgg_extend_view('css', 'twitterservice/css');
+	
+		// sign on with twitter
+		if (twitterservice_allow_sign_on_with_twitter()) {
+			elgg_extend_view('login/extend', 'twitterservice/login');
+		}
+	
+		// register page handler
+		register_page_handler('twitterservice', 'twitterservice_pagehandler');
+	
+		// register Walled Garden public pages
+		register_plugin_hook('public_pages', 'walled_garden', 'twitterservice_public_pages');
+	
+		// allow plugin authors to hook into this service
+		register_plugin_hook('tweet', 'twitter_service', 'twitterservice_tweet');
+	}
+}
+
+function twitterservice_pagehandler($page) {
+	if (!isset($page[0])) {
+		forward();
+	}
+	
+	switch ($page[0]) {
+		case 'authorize':
+			twitterservice_authorize();
+			break;
+		case 'revoke':
+			twitterservice_revoke();
+			break;
+		case 'forward':
+			twitterservice_forward();
+			break;
+		case 'login':
+			twitterservice_login();
+			break;
+		default:
+			forward();
+			break;
+	}
+}
+
+function twitterservice_tweet($hook, $entity_type, $returnvalue, $params) {
+	static $plugins;
+	if (!$plugins) {
+		$plugins = trigger_plugin_hook('plugin_list', 'twitter_service', NULL, array());
+	}
+	
+	// ensure valid plugin
+	if (!in_array($params['plugin'], $plugins)) {
+		return NULL;
+	}
+	
+	// check admin settings
+	$consumer_key = get_plugin_setting('consumer_key', 'twitterservice');
+	$consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice');
+	if (!($consumer_key && $consumer_secret)) {
+		return NULL;
+	}
+	
+	// check user settings
+	$user_id = get_loggedin_userid();
+	$access_key = get_plugin_usersetting('access_key', $user_id, 'twitterservice');
+	$access_secret = get_plugin_usersetting('access_secret', $user_id, 'twitterservice');
+	if (!($access_key && $access_secret)) {
+		return NULL;
+	}
+	
+	// send tweet
+	$api = new TwitterOAuth($consumer_key, $consumer_secret, $access_key, $access_secret);
+	$response = $api->post('statuses/update', array('status' => $params['message']));
+	
+	return TRUE;
+}
+
+function twitterservice_fetch_tweets($user_id, $options=array()) {
+	// check admin settings
+	$consumer_key = get_plugin_setting('consumer_key', 'twitterservice');
+	$consumer_secret = get_plugin_setting('consumer_secret', 'twitterservice');
+	if (!($consumer_key && $consumer_secret)) {
+		return FALSE;
+	}
+	
+	// check user settings
+	$access_key = get_plugin_usersetting('access_key', $user_id, 'twitterservice');
+	$access_secret = get_plugin_usersetting('access_secret', $user_id, 'twitterservice');
+	if (!($access_key && $access_secret)) {
+		return FALSE;
+	}
+	
+	// fetch tweets
+	$api = new TwitterOAuth($consumer_key, $consumer_secret, $access_key, $access_secret);
+	return $api->get('statuses/user_timeline', $options);
+}
+
+function twitterservice_public_pages($hook, $type, $return_value, $params) {
+	$return_value[] = 'pg/twitterservice/forward';
+	$return_value[] = 'pg/twitterservice/login';
+	
+	return $return_value;
+}