261 lines
		
	
	
		
			8.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			261 lines
		
	
	
		
			8.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/*
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 * StatusNet - the distributed open-source microblogging tool
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 * Copyright (C) 2008, 2009, StatusNet, Inc.
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 *
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 * 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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require_once INSTALLDIR.'/extlib/facebook/facebook.php';
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require_once INSTALLDIR.'/lib/facebookaction.php';
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require_once INSTALLDIR.'/lib/noticelist.php';
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define("FACEBOOK_SERVICE", 2); // Facebook is foreign_service ID 2
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define("FACEBOOK_NOTICE_PREFIX", 1);
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define("FACEBOOK_PROMPTED_UPDATE_PREF", 2);
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function getFacebook()
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{
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    static $facebook = null;
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    $apikey = common_config('facebook', 'apikey');
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    $secret = common_config('facebook', 'secret');
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    if ($facebook === null) {
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        $facebook = new Facebook($apikey, $secret);
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    }
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    if (empty($facebook)) {
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        common_log(LOG_ERR, 'Could not make new Facebook client obj!',
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            __FILE__);
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    }
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    return $facebook;
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}
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function isFacebookBound($notice, $flink) {
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    if (empty($flink)) {
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        return false;
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    }
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    // Avoid a loop
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    if ($notice->source == 'Facebook') {
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        common_log(LOG_INFO, "Skipping notice $notice->id because its " .
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                   'source is Facebook.');
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        return false;
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    }
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    // If the user does not want to broadcast to Facebook, move along
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    if (!($flink->noticesync & FOREIGN_NOTICE_SEND == FOREIGN_NOTICE_SEND)) {
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        common_log(LOG_INFO, "Skipping notice $notice->id " .
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            'because user has FOREIGN_NOTICE_SEND bit off.');
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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', $notice->content) ||
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        ($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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function facebookBroadcastNotice($notice)
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{
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    $facebook = getFacebook();
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    $flink = Foreign_link::getByUserID($notice->profile_id, FACEBOOK_SERVICE);
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    if (isFacebookBound($notice, $flink)) {
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        // Okay, we're good to go, update the FB status
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        $status = null;
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        $fbuid = $flink->foreign_id;
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        $user = $flink->getUser();
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        $attachments  = $notice->attachments();
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        try {
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            // Get the status 'verb' (prefix) the user has set
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            // XXX: Does this call count against our per user FB request limit?
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            // If so we should consider storing verb elsewhere or not storing
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            $prefix = $facebook->api_client->data_getUserPreference(FACEBOOK_NOTICE_PREFIX,
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                                                                    $fbuid);
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            $status = "$prefix $notice->content";
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            $can_publish = $facebook->api_client->users_hasAppPermission('publish_stream',
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                                                                         $fbuid);
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            $can_update  = $facebook->api_client->users_hasAppPermission('status_update',
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                                                                         $fbuid);
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            if (!empty($attachments) && $can_publish == 1) {
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                $fbattachment = format_attachments($attachments);
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                $facebook->api_client->stream_publish($status, $fbattachment,
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                                                      null, null, $fbuid);
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                common_log(LOG_INFO,
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                           "Posted notice $notice->id w/attachment " .
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                           "to Facebook user's stream (fbuid = $fbuid).");
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            } elseif ($can_update == 1 || $can_publish == 1) {
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                $facebook->api_client->users_setStatus($status, $fbuid, false, true);
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                common_log(LOG_INFO,
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                           "Posted notice $notice->id to Facebook " .
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                           "as a status update (fbuid = $fbuid).");
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            } else {
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                $msg = "Not sending notice $notice->id to Facebook " .
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                  "because user $user->nickname hasn't given the " .
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                  'Facebook app \'status_update\' or \'publish_stream\' permission.';
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                common_log(LOG_WARNING, $msg);
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            }
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            // Finally, attempt to update the user's profile box
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            if ($can_publish == 1 || $can_update == 1) {
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                updateProfileBox($facebook, $flink, $notice);
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            }
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        } catch (FacebookRestClientException $e) {
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            $code = $e->getCode();
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            common_log(LOG_WARNING, 'Facebook returned error code ' .
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                       $code . ': ' . $e->getMessage());
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            common_log(LOG_WARNING,
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                       'Unable to update Facebook status for ' .
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                       "$user->nickname (user id: $user->id)!");
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            if ($code == 200 || $code == 250) {
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                // 200 The application does not have permission to operate on the passed in uid parameter.
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                // 250 Updating status requires the extended permission status_update or publish_stream.
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                // see: http://wiki.developers.facebook.com/index.php/Users.setStatus#Example_Return_XML
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                remove_facebook_app($flink);
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            } else {
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                // Try sending again later.
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                return false;
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            }
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        }
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    }
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    return true;
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}
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function updateProfileBox($facebook, $flink, $notice) {
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    $fbaction = new FacebookAction($output = 'php://output',
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                                   $indent = true, $facebook, $flink);
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    $fbaction->updateProfileBox($notice);
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}
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function format_attachments($attachments)
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{
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    $fbattachment          = array();
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    $fbattachment['media'] = array();
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    foreach($attachments as $attachment)
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    {
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        if($enclosure = $attachment->getEnclosure()){
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            $fbmedia = get_fbmedia_for_attachment($enclosure);
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        }else{
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            $fbmedia = get_fbmedia_for_attachment($attachment);
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        }
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        if($fbmedia){
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            $fbattachment['media'][]=$fbmedia;
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        }else{
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            $fbattachment['name'] = ($attachment->title ?
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                                  $attachment->title : $attachment->url);
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            $fbattachment['href'] = $attachment->url;
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        }
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    }
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    if(count($fbattachment['media'])>0){
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        unset($fbattachment['name']);
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        unset($fbattachment['href']);
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    }
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    return $fbattachment;
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}
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/**
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* given an File objects, returns an associative array suitable for Facebook media
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*/
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function get_fbmedia_for_attachment($attachment)
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{
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    $fbmedia    = array();
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    if (strncmp($attachment->mimetype, 'image/', strlen('image/')) == 0) {
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        $fbmedia['type']         = 'image';
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        $fbmedia['src']          = $attachment->url;
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        $fbmedia['href']         = $attachment->url;
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    } else if ($attachment->mimetype == 'audio/mpeg') {
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        $fbmedia['type']         = 'mp3';
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        $fbmedia['src']          = $attachment->url;
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    }else if ($attachment->mimetype == 'application/x-shockwave-flash') {
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        $fbmedia['type']         = 'flash';
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        // http://wiki.developers.facebook.com/index.php/Attachment_%28Streams%29
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        // says that imgsrc is required... but we have no value to put in it
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        // $fbmedia['imgsrc']='';
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        $fbmedia['swfsrc']       = $attachment->url;
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    }else{
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        return false;
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    }
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    return $fbmedia;
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}
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function remove_facebook_app($flink)
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{
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    $user = $flink->getUser();
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    common_log(LOG_INFO, 'Removing Facebook App Foreign link for ' .
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        "user $user->nickname (user id: $user->id).");
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    $result = $flink->delete();
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    if (empty($result)) {
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        common_log(LOG_ERR, 'Could not remove Facebook App ' .
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            "Foreign_link for $user->nickname (user id: $user->id)!");
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        common_log_db_error($flink, 'DELETE', __FILE__);
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    }
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    // Notify the user that we are removing their FB app access
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    $result = mail_facebook_app_removed($user);
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    if (!$result) {
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        $msg = 'Unable to send email to notify ' .
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            "$user->nickname (user id: $user->id) " .
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            'that their Facebook app link was ' .
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            'removed!';
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        common_log(LOG_WARNING, $msg);
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    }
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}
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