641 lines
19 KiB
PHP
641 lines
19 KiB
PHP
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<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Class for communicating with Facebook
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Plugin
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Zach Copley <zach@status.net>
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* @copyright 2009-2010 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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/**
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* Class for communication with Facebook
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*
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* @category Plugin
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class Facebookclient
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{
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protected $facebook = null; // Facebook Graph client obj
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protected $flink = null; // Foreign_link StatusNet -> Facebook
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protected $notice = null; // The user's notice
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protected $user = null; // Sender of the notice
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protected $oldRestClient = null; // Old REST API client
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function __constructor($notice)
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{
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$this->facebook = self::getFacebook();
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$this->notice = $notice;
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$this->flink = Foreign_link::getByUserID(
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$notice->profile_id,
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FACEBOOK_SERVICE
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);
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$this->user = $this->flink->getUser();
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$this->oldRestClient = self::getOldRestClient();
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}
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/*
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* Get and instance of the old REST API client for sending notices from
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* users with Facebook links that pre-exist the Graph API
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*/
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static function getOldRestClient()
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{
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$apikey = common_config('facebook', 'apikey');
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$secret = common_config('facebook', 'secret');
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// If there's no app key and secret set in the local config, look
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// for a global one
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if (empty($apikey) || empty($secret)) {
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$apikey = common_config('facebook', 'global_apikey');
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$secret = common_config('facebook', 'global_secret');
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}
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return new FacebookRestClient($apikey, $secret, null);
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}
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/*
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* Get an instance of the Facebook Graph SDK object
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*
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* @param string $appId Application
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* @param string $secret Facebook API secret
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*
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* @return Facebook A Facebook SDK obj
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*/
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static function getFacebook($appId = null, $secret = null)
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{
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// Check defaults and configuration for application ID and secret
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if (empty($appId)) {
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$appId = common_config('facebook', 'appid');
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}
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if (empty($secret)) {
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$secret = common_config('facebook', 'secret');
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}
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// If there's no app ID and secret set in the local config, look
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// for a global one
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if (empty($appId) || empty($secret)) {
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$appId = common_config('facebook', 'global_appid');
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$secret = common_config('facebook', 'global_secret');
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}
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return new Facebook(
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array(
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'appId' => $appId,
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'secret' => $secret,
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'cookie' => true
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)
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);
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}
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/*
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* Broadcast a notice to Facebook
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*
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* @param Notice $notice the notice to send
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*/
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static function facebookBroadcastNotice($notice)
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{
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$client = new Facebookclient($notice);
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$client->sendNotice();
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}
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/*
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* Should the notice go to Facebook?
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*/
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function isFacebookBound() {
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if (empty($this->flink)) {
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common_log(
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LOG_WARN,
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sprintf(
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"No Foreign_link to Facebook for the author of notice %d.",
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$this->notice->id
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),
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__FILE__
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);
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return false;
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}
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// Avoid a loop
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if ($this->notice->source == 'Facebook') {
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common_log(
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LOG_INFO,
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sprintf(
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'Skipping notice %d because its source is Facebook.',
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$this->notice->id
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),
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__FILE__
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);
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return false;
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}
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// If the user does not want to broadcast to Facebook, move along
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if (!($this->flink->noticesync & FOREIGN_NOTICE_SEND == FOREIGN_NOTICE_SEND)) {
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common_log(
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LOG_INFO,
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sprintf(
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'Skipping notice %d because user has FOREIGN_NOTICE_SEND bit off.',
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$this->notice->id
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),
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__FILE__
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);
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return false;
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}
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// If it's not a reply, or if the user WANTS to send @-replies,
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// then, yeah, it can go to Facebook.
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if (!preg_match('/@[a-zA-Z0-9_]{1,15}\b/u', $this->notice->content) ||
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($this->flink->noticesync & FOREIGN_NOTICE_SEND_REPLY)) {
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return true;
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}
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return false;
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}
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/*
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* Determine whether we should send this notice using the Graph API or the
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* old REST API and then dispatch
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*/
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function sendNotice()
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{
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// If there's nothing in the credentials field try to send via
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// the Old Rest API
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if (empty($this->flink->credentials)) {
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$this->sendOldRest();
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} else {
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// Otherwise we most likely have an access token
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$this->sendGraph();
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}
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}
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/*
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* Send a notice to Facebook using the Graph API
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*/
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function sendGraph()
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{
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common_debug("Send notice via Graph API", __FILE__);
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}
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/*
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* Send a notice to Facebook using the deprecated Old REST API. We need this
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* for backwards compatibility. Users who signed up for Facebook bridging
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* using the old Facebook Canvas application do not have an OAuth 2.0
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* access token.
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*/
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function sendOldRest()
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{
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if (isFacebookBound()) {
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try {
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$canPublish = $this->checkPermission('publish_stream');
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$canUpdate = $this->checkPermission('status_update');
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// Post to Facebook
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if ($notice->hasAttachments() && $canPublish == 1) {
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$this->restPublishStream();
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} elseif ($canUpdate == 1 || $canPublish == 1) {
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$this->restStatusUpdate();
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} else {
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$msg = 'Not sending notice %d to Facebook because user %s '
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. '(%d), fbuid %s, does not have \'status_update\' '
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. 'or \'publish_stream\' permission.';
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common_log(
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LOG_WARNING,
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sprintf(
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$msg,
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$this->notice->id,
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$this->user->nickname,
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$this->user->id,
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$this->flink->foreign_id
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),
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__FILE__
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);
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}
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} catch (FacebookRestClientException $e) {
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return $this->handleFacebookError($e);
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}
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}
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return true;
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}
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/*
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* Query Facebook to to see if a user has permission
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*
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*
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*
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* @param $permission the permission to check for - must be either
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* public_stream or status_update
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*
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* @return boolean result
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*/
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function checkPermission($permission)
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{
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if (!in_array($permission, array('publish_stream', 'status_update'))) {
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throw new ServerExpception("No such permission!");
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}
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$fbuid = $this->flink->foreign_link;
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common_debug(
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sprintf(
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'Checking for %s permission for user %s (%d), fbuid %s',
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$permission,
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$this->user->nickname,
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$this->user->id,
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$fbuid
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),
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__FILE__
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);
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// NOTE: $this->oldRestClient->users_hasAppPermission() has been
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// returning bogus results, so we're using FQL to check for
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// permissions
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$fql = sprintf(
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"SELECT %s FROM permissions WHERE uid = %s",
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$permission,
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$fbuid
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);
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$result = $this->oldRestClient->fql_query($fql);
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$hasPermission = 0;
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if (isset($result[0][$permission])) {
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$canPublish = $result[0][$permission];
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}
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if ($hasPermission == 1) {
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common_debug(
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sprintf(
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'%s (%d), fbuid %s has %s permission',
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$permission,
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$this->user->nickname,
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$this->user->id,
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$fbuid
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),
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__FILE__
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);
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return true;
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} else {
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$logMsg = '%s (%d), fbuid $fbuid does NOT have %s permission.'
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. 'Facebook returned: %s';
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common_debug(
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sprintf(
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$logMsg,
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$this->user->nickname,
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$this->user->id,
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$permission,
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$fbuid,
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var_export($result, true)
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),
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__FILE__
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);
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return false;
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}
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}
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function handleFacebookError($e)
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{
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$fbuid = $this->flink->foreign_id;
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$code = $e->getCode();
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$errmsg = $e->getMessage();
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// XXX: Check for any others?
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switch($code) {
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case 100: // Invalid parameter
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$msg = 'Facebook claims notice %d was posted with an invalid '
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. 'parameter (error code 100 - %s) Notice details: '
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. '[nickname=%s, user id=%d, fbuid=%d, content="%s"]. '
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. 'Dequeing.';
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common_log(
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LOG_ERR, sprintf(
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$msg,
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$this->notice->id,
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$errmsg,
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$this->user->nickname,
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$this->user->id,
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$fbuid,
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$this->notice->content
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),
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__FILE__
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);
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return true;
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break;
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case 200: // Permissions error
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case 250: // Updating status requires the extended permission status_update
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$this->disconnect();
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return true; // dequeue
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break;
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case 341: // Feed action request limit reached
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$msg = '%s (userid=%d, fbuid=%d) has exceeded his/her limit '
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. 'for posting notices to Facebook today. Dequeuing '
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. 'notice %d';
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common_log(
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LOG_INFO, sprintf(
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$msg,
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$user->nickname,
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$user->id,
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$fbuid,
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$this->notice->id
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),
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__FILE__
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);
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// @fixme: We want to rety at a later time when the throttling has expired
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// instead of just giving up.
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return true;
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break;
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default:
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$msg = 'Facebook returned an error we don\'t know how to deal with '
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. 'when posting notice %d. Error code: %d, error message: "%s"'
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. ' Notice details: [nickname=%s, user id=%d, fbuid=%d, '
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. 'notice content="%s"]. Dequeing.';
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common_log(
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LOG_ERR, sprintf(
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$msg,
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$this->notice->id,
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$code,
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$errmsg,
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$this->user->nickname,
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$this->user->id,
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$fbuid,
|
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$this->notice->content
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|
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),
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|
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__FILE__
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);
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|
return true; // dequeue
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function restStatusUpdate()
|
||
|
|
{
|
||
|
|
$fbuid = $this->flink->foreign_id;
|
||
|
|
|
||
|
|
common_debug(
|
||
|
|
sprintf(
|
||
|
|
"Attempting to post notice %d as a status update for %s (%d), fbuid %s",
|
||
|
|
$this->notice->id,
|
||
|
|
$this->user->nickname,
|
||
|
|
$this->user->id,
|
||
|
|
$fbuid
|
||
|
|
),
|
||
|
|
__FILE__
|
||
|
|
);
|
||
|
|
|
||
|
|
$result = $this->oldRestClient->users_setStatus(
|
||
|
|
$this->notice->content,
|
||
|
|
$fbuid,
|
||
|
|
false,
|
||
|
|
true
|
||
|
|
);
|
||
|
|
|
||
|
|
common_log(
|
||
|
|
LOG_INFO,
|
||
|
|
sprintf(
|
||
|
|
"Posted notice %s as a status update for %s (%d), fbuid %s",
|
||
|
|
$this->notice->id,
|
||
|
|
$this->user->nickname,
|
||
|
|
$this->user->id,
|
||
|
|
$fbuid
|
||
|
|
),
|
||
|
|
__FILE__
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
function restPublishStream()
|
||
|
|
{
|
||
|
|
$fbuid = $this->flink->foreign_id;
|
||
|
|
|
||
|
|
common_debug(
|
||
|
|
sprintf(
|
||
|
|
'Attempting to post notice %d as stream item with attachment for '
|
||
|
|
. '%s (%d) fbuid %s',
|
||
|
|
$this->notice->id,
|
||
|
|
$this->user->nickname,
|
||
|
|
$this->user->id,
|
||
|
|
$fbuid
|
||
|
|
),
|
||
|
|
__FILE__
|
||
|
|
);
|
||
|
|
|
||
|
|
$fbattachment = format_attachments($notice->attachments());
|
||
|
|
|
||
|
|
$this->oldRestClient->stream_publish(
|
||
|
|
$this->notice->content,
|
||
|
|
$fbattachment,
|
||
|
|
null,
|
||
|
|
null,
|
||
|
|
$fbuid
|
||
|
|
);
|
||
|
|
|
||
|
|
common_log(
|
||
|
|
LOG_INFO,
|
||
|
|
sprintf(
|
||
|
|
'Posted notice %d as a stream item with attachment for %s '
|
||
|
|
. '(%d), fbuid %s',
|
||
|
|
$this->notice->id,
|
||
|
|
$this->user->nickname,
|
||
|
|
$this->user->id,
|
||
|
|
$fbuid
|
||
|
|
),
|
||
|
|
__FILE__
|
||
|
|
);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function format_attachments($attachments)
|
||
|
|
{
|
||
|
|
$fbattachment = array();
|
||
|
|
$fbattachment['media'] = array();
|
||
|
|
|
||
|
|
foreach($attachments as $attachment)
|
||
|
|
{
|
||
|
|
if($enclosure = $attachment->getEnclosure()){
|
||
|
|
$fbmedia = get_fbmedia_for_attachment($enclosure);
|
||
|
|
}else{
|
||
|
|
$fbmedia = get_fbmedia_for_attachment($attachment);
|
||
|
|
}
|
||
|
|
if($fbmedia){
|
||
|
|
$fbattachment['media'][]=$fbmedia;
|
||
|
|
}else{
|
||
|
|
$fbattachment['name'] = ($attachment->title ?
|
||
|
|
$attachment->title : $attachment->url);
|
||
|
|
$fbattachment['href'] = $attachment->url;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(count($fbattachment['media'])>0){
|
||
|
|
unset($fbattachment['name']);
|
||
|
|
unset($fbattachment['href']);
|
||
|
|
}
|
||
|
|
return $fbattachment;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* given an File objects, returns an associative array suitable for Facebook media
|
||
|
|
*/
|
||
|
|
function get_fbmedia_for_attachment($attachment)
|
||
|
|
{
|
||
|
|
$fbmedia = array();
|
||
|
|
|
||
|
|
if (strncmp($attachment->mimetype, 'image/', strlen('image/')) == 0) {
|
||
|
|
$fbmedia['type'] = 'image';
|
||
|
|
$fbmedia['src'] = $attachment->url;
|
||
|
|
$fbmedia['href'] = $attachment->url;
|
||
|
|
} else if ($attachment->mimetype == 'audio/mpeg') {
|
||
|
|
$fbmedia['type'] = 'mp3';
|
||
|
|
$fbmedia['src'] = $attachment->url;
|
||
|
|
}else if ($attachment->mimetype == 'application/x-shockwave-flash') {
|
||
|
|
$fbmedia['type'] = 'flash';
|
||
|
|
|
||
|
|
// http://wiki.developers.facebook.com/index.php/Attachment_%28Streams%29
|
||
|
|
// says that imgsrc is required... but we have no value to put in it
|
||
|
|
// $fbmedia['imgsrc']='';
|
||
|
|
|
||
|
|
$fbmedia['swfsrc'] = $attachment->url;
|
||
|
|
}else{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return $fbmedia;
|
||
|
|
}
|
||
|
|
|
||
|
|
function disconnect()
|
||
|
|
{
|
||
|
|
$fbuid = $this->flink->foreign_link;
|
||
|
|
|
||
|
|
common_log(
|
||
|
|
LOG_INFO,
|
||
|
|
sprintf(
|
||
|
|
'Removing Facebook link for %s (%d), fbuid %s',
|
||
|
|
$this->user->nickname,
|
||
|
|
$this->user->id,
|
||
|
|
$fbuid
|
||
|
|
),
|
||
|
|
__FILE__
|
||
|
|
);
|
||
|
|
|
||
|
|
$result = $flink->delete();
|
||
|
|
|
||
|
|
if (empty($result)) {
|
||
|
|
common_log(
|
||
|
|
LOG_ERR,
|
||
|
|
sprintf(
|
||
|
|
'Could not remove Facebook link for %s (%d), fbuid %s',
|
||
|
|
$this->user->nickname,
|
||
|
|
$this->user->id,
|
||
|
|
$fbuid
|
||
|
|
),
|
||
|
|
__FILE__
|
||
|
|
);
|
||
|
|
common_log_db_error($flink, 'DELETE', __FILE__);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Notify the user that we are removing their Facebook link
|
||
|
|
|
||
|
|
$result = $this->mailFacebookDisconnect();
|
||
|
|
|
||
|
|
if (!$result) {
|
||
|
|
|
||
|
|
$msg = 'Unable to send email to notify %s (%d), fbuid %s '
|
||
|
|
. 'about his/her Facebook link being removed.';
|
||
|
|
|
||
|
|
common_log(
|
||
|
|
LOG_WARNING,
|
||
|
|
sprintf(
|
||
|
|
$msg,
|
||
|
|
$this->user->nickname,
|
||
|
|
$this->user->id,
|
||
|
|
$fbuid
|
||
|
|
),
|
||
|
|
__FILE__
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Send a mail message to notify a user that her Facebook link
|
||
|
|
* has been terminated.
|
||
|
|
*
|
||
|
|
* @return boolean success flag
|
||
|
|
*/
|
||
|
|
function mailFacebookDisconnect()
|
||
|
|
{
|
||
|
|
$profile = $user->getProfile();
|
||
|
|
|
||
|
|
$siteName = common_config('site', 'name');
|
||
|
|
|
||
|
|
common_switch_locale($user->language);
|
||
|
|
|
||
|
|
$subject = sprintf(
|
||
|
|
_m('Your Facebook connection has been removed'),
|
||
|
|
$siteName
|
||
|
|
);
|
||
|
|
|
||
|
|
$msg = <<<BODY
|
||
|
|
Hi, %1$s. We're sorry to inform you we are unable to publish your notice to
|
||
|
|
Facebook, and have removed the connection between your %2$s account and Facebook.
|
||
|
|
|
||
|
|
This may have happened because you have removed permission for %2$s to post on
|
||
|
|
your behalf, or perhaps you have deactivated your Facebook account. You can
|
||
|
|
reconnect your %s account to Facebook at any time by logging in with Facebook
|
||
|
|
again.
|
||
|
|
BODY;
|
||
|
|
$body = sprintf(
|
||
|
|
_m($msg),
|
||
|
|
$this->user->nickname,
|
||
|
|
$siteName
|
||
|
|
);
|
||
|
|
|
||
|
|
common_switch_locale();
|
||
|
|
|
||
|
|
return mail_to_user($this->user, $subject, $body);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|