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-rw-r--r--mod/twitterservice/twitterservice_lib.php329
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
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-<?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;
-}