diff options
Diffstat (limited to 'mod/twitterservice/twitterservice_lib.php')
| -rw-r--r-- | mod/twitterservice/twitterservice_lib.php | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/mod/twitterservice/twitterservice_lib.php b/mod/twitterservice/twitterservice_lib.php deleted file mode 100644 index 8e886f2d9..000000000 --- a/mod/twitterservice/twitterservice_lib.php +++ /dev/null @@ -1,329 +0,0 @@ -<?php -/** - * Common library of functions used by Twitter Services. - * - * @package TwitterService - */ - -/** - * Tests if the system admin has enabled Sign-On-With-Twitter - * - * @param void - * @return bool - */ -function twitterservice_allow_sign_on_with_twitter() { - if (!$consumer_key = elgg_get_plugin_setting('consumer_key', 'twitterservice')) { - return FALSE; - } - - if (!$consumer_secret = elgg_get_plugin_setting('consumer_secret', 'twitterservice')) { - return FALSE; - } - - return elgg_get_plugin_setting('sign_on', 'twitterservice') == 'yes'; -} - -/** - * Forwards - * - * @todo what is this? - */ -function twitterservice_forward() { - // sanity check - if (!twitterservice_allow_sign_on_with_twitter()) { - forward(); - } - - $callback = elgg_normalize_url("twitterservice/login"); - $request_link = twitterservice_get_authorize_url($callback); - - forward($request_link, 'twitterservice'); -} - -/** - * Log in a user with twitter. - */ -function twitterservice_login() { - - // sanity check - if (!twitterservice_allow_sign_on_with_twitter()) { - forward(); - } - - $token = twitterservice_get_access_token(get_input('oauth_verifier')); - if (!isset($token['oauth_token']) or !isset($token['oauth_token_secret'])) { - register_error(elgg_echo('twitterservice:login:error')); - forward(); - } - - // attempt to find user and log them in. - // else, create a new user. - $options = array( - 'type' => 'user', - 'plugin_user_setting_name_value_pairs' => array( - 'access_key' => $token['oauth_token'], - 'access_secret' => $token['oauth_token_secret'], - ), - 'limit' => 0 - ); - - $users = elgg_get_entities_from_plugin_user_settings($options); - - if ($users) { - if (count($users) == 1 && login($users[0])) { - system_message(elgg_echo('twitterservice:login:success')); - - // trigger login hook - elgg_trigger_plugin_hook('login', 'twitterservice', array('user' => $users[0])); - } else { - system_message(elgg_echo('twitterservice:login:error')); - } - - forward(); - } else { - // need Twitter account credentials - $consumer_key = elgg_get_plugin_setting('consumer_key', 'twitterservice'); - $consumer_secret = elgg_get_plugin_setting('consumer_secret', 'twitterservice'); - $api = new TwitterOAuth($consumer_key, $consumer_secret, $token['oauth_token'], $token['oauth_token_secret']); - $twitter = $api->get('account/verify_credentials'); - - // backward compatibility for stalled-development Twitter Login plugin - $user = FALSE; - if ($twitter_user = get_user_by_username($token['screen_name'])) { - if (($screen_name = $twitter_user->twitter_screen_name) && ($screen_name == $token['screen_name'])) { - // convert existing account - $user = $twitter_user; - $forward = ''; - } - } - - // create new user - if (!$user) { - // check new registration allowed - if (!twitterservice_allow_new_users_with_twitter()) { - register_error(elgg_echo('registerdisabled')); - forward(); - } - - // trigger a hook for plugin authors to intercept - if (!elgg_trigger_plugin_hook('new_twitter_user', 'twitter_service', array('account' => $twitter), TRUE)) { - // halt execution - register_error(elgg_echo('twitterservice:login:error')); - forward(); - } - - // Elgg-ify Twitter credentials - $username = $twitter->screen_name; - while (get_user_by_username($username)) { - $username = $twitter->screen_name . '_' . rand(1000, 9999); - } - - $password = generate_random_cleartext_password(); - $name = $twitter->name; - - $user = new ElggUser(); - $user->username = $username; - $user->name = $name; - $user->access_id = ACCESS_PUBLIC; - $user->salt = generate_random_cleartext_password(); - $user->password = generate_user_password($user, $password); - $user->owner_guid = 0; - $user->container_guid = 0; - - if (!$user->save()) { - register_error(elgg_echo('registerbad')); - forward(); - } - - // @todo require email address? - - $site_name = elgg_get_site_entity()->name; - system_message(elgg_echo('twitterservice:login:email', array($site_name))); - - $forward = "settings/user/{$user->username}"; - } - - // set twitter services tokens - elgg_set_plugin_user_setting('twitter_name', $token['screen_name'], $user->guid); - elgg_set_plugin_user_setting('access_key', $token['oauth_token'], $user->guid); - elgg_set_plugin_user_setting('access_secret', $token['oauth_token_secret'], $user->guid); - - // pull in Twitter icon - twitterservice_update_user_avatar($user, $twitter->profile_image_url); - - // login new user - if (login($user)) { - system_message(elgg_echo('twitterservice:login:success')); - - // trigger login hook for new user - elgg_trigger_plugin_hook('first_login', 'twitterservice', array('user' => $user)); - } else { - system_message(elgg_echo('twitterservice:login:error')); - } - - forward($forward, 'twitterservice'); - } - - // register login error - register_error(elgg_echo('twitterservice:login:error')); - forward(); -} - -/** - * Pull in the latest avatar from twitter. - * - * @param unknown_type $user - * @param unknown_type $file_location - */ -function twitterservice_update_user_avatar($user, $file_location) { - $sizes = array( - 'topbar' => array(16, 16, TRUE), - 'tiny' => array(25, 25, TRUE), - 'small' => array(40, 40, TRUE), - 'medium' => array(100, 100, TRUE), - 'large' => array(200, 200, FALSE), - 'master' => array(550, 550, FALSE), - ); - - $filehandler = new ElggFile(); - $filehandler->owner_guid = $user->getGUID(); - foreach ($sizes as $size => $dimensions) { - $image = get_resized_image_from_existing_file( - $file_location, - $dimensions[0], - $dimensions[1], - $dimensions[2] - ); - - $filehandler->setFilename("profile/$user->guid$size.jpg"); - $filehandler->open('write'); - $filehandler->write($image); - $filehandler->close(); - } - - return TRUE; -} - -/** - * User-initiated Twitter authorization - * - * Callback action from Twitter registration. Registers a single Elgg user with - * the authorization tokens. Will revoke access from previous users when a - * conflict exists. - * - * Depends upon {@link twitterservice_get_authorize_url} being called previously - * to establish session request tokens. - */ -function twitterservice_authorize() { - $token = twitterservice_get_access_token(); - if (!isset($token['oauth_token']) || !isset($token['oauth_token_secret'])) { - register_error(elgg_echo('twitterservice:authorize:error')); - forward('settings/plugins', 'twitterservice'); - } - - // make sure no other users are registered to this twitter account. - $options = array( - 'type' => 'user', - 'plugin_user_setting_name_value_pairs' => array( - 'access_key' => $token['oauth_token'], - 'access_secret' => $token['oauth_token_secret'], - ), - 'limit' => 0 - ); - - $users = elgg_get_entities_from_plugin_user_settings($options); - - if ($users) { - foreach ($users as $user) { - // revoke access - elgg_unset_plugin_user_setting('twitter_name', $user->getGUID()); - elgg_unset_plugin_user_setting('access_key', $user->getGUID()); - elgg_unset_plugin_user_setting('access_secret', $user->getGUID()); - } - } - - // register user's access tokens - elgg_set_plugin_user_setting('twitter_name', $token['screen_name']); - elgg_set_plugin_user_setting('access_key', $token['oauth_token']); - elgg_set_plugin_user_setting('access_secret', $token['oauth_token_secret']); - - // trigger authorization hook - elgg_trigger_plugin_hook('authorize', 'twitterservice', array('token' => $token)); - - system_message(elgg_echo('twitterservice:authorize:success')); - forward('settings/plugins', 'twitterservice'); -} - -/** - * Remove twitter access for the currently logged in user. - */ -function twitterservice_revoke() { - // unregister user's access tokens - elgg_unset_plugin_user_setting('twitter_name'); - elgg_unset_plugin_user_setting('access_key'); - elgg_unset_plugin_user_setting('access_secret'); - - system_message(elgg_echo('twitterservice:revoke:success')); - forward('settings/plugins', 'twitterservice'); -} - -/** - * Returns the url to authorize a user. - * - * @param string $callback The callback URL? - */ -function twitterservice_get_authorize_url($callback = NULL) { - global $SESSION; - - $consumer_key = elgg_get_plugin_setting('consumer_key', 'twitterservice'); - $consumer_secret = elgg_get_plugin_setting('consumer_secret', 'twitterservice'); - - // request tokens from Twitter - $twitter = new TwitterOAuth($consumer_key, $consumer_secret); - $token = $twitter->getRequestToken($callback); - - // save token in session for use after authorization - $SESSION['twitterservice'] = array( - 'oauth_token' => $token['oauth_token'], - 'oauth_token_secret' => $token['oauth_token_secret'], - ); - - return $twitter->getAuthorizeURL($token['oauth_token']); -} - -/** - * Returns the access token to use in twitter calls. - * - * @param unknown_type $oauth_verifier - */ -function twitterservice_get_access_token($oauth_verifier = FALSE) { - global $SESSION; - - $consumer_key = elgg_get_plugin_setting('consumer_key', 'twitterservice'); - $consumer_secret = elgg_get_plugin_setting('consumer_secret', 'twitterservice'); - - // retrieve stored tokens - $oauth_token = $SESSION['twitterservice']['oauth_token']; - $oauth_token_secret = $SESSION['twitterservice']['oauth_token_secret']; - $SESSION->offsetUnset('twitterservice'); - - // fetch an access token - $api = new TwitterOAuth($consumer_key, $consumer_secret, $oauth_token, $oauth_token_secret); - return $api->getAccessToken($oauth_verifier); -} - -/** - * Checks if this site is accepting new users. - * Admins can disable manual registration, but some might want to allow - * twitter-only logins. - */ -function twitterservice_allow_new_users_with_twitter() { - $site_reg = elgg_get_config('allow_registration'); - $twitter_reg = elgg_get_plugin_setting('new_users'); - - if ($site_reg || (!$site_reg && $twitter_reg == 'yes')) { - return true; - } - - return false; -} |