483 lines
16 KiB
PHP
483 lines
16 KiB
PHP
<?php
|
|
/*
|
|
* StatusNet - the distributed open-source microblogging tool
|
|
* Copyright (C) 2008-2011 StatusNet, Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
if (!defined('STATUSNET') && !defined('LACONICA')) {
|
|
exit(1);
|
|
}
|
|
|
|
define('TWITTER_SERVICE', 1); // Twitter is foreign_service ID 1
|
|
|
|
function add_twitter_user($twitter_id, $screen_name)
|
|
{
|
|
// Clear out any bad old foreign_users with the new user's legit URL
|
|
// This can happen when users move around or fakester accounts get
|
|
// repoed, and things like that.
|
|
try {
|
|
$fuser = Foreign_user::getForeignUser($twitter_id, TWITTER_SERVICE);
|
|
$result = $fuser->delete();
|
|
if ($result != false) {
|
|
common_log(
|
|
LOG_INFO,
|
|
"Twitter bridge - removed old Twitter user: $screen_name ($twitter_id)."
|
|
);
|
|
}
|
|
} catch (NoResultException $e) {
|
|
// no old foreign users exist for this id
|
|
}
|
|
|
|
$fuser = new Foreign_user();
|
|
|
|
$fuser->nickname = $screen_name;
|
|
$fuser->uri = 'http://twitter.com/' . $screen_name;
|
|
$fuser->id = $twitter_id;
|
|
$fuser->service = TWITTER_SERVICE;
|
|
$fuser->created = common_sql_now();
|
|
$result = $fuser->insert();
|
|
|
|
if ($result === false) {
|
|
common_log(LOG_WARNING, "Twitter bridge - failed to add new Twitter user: $twitter_id - $screen_name.");
|
|
common_log_db_error($fuser, 'INSERT', __FILE__);
|
|
} else {
|
|
common_log(LOG_INFO,
|
|
"Twitter bridge - Added new Twitter user: $screen_name ($twitter_id).");
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
// Creates or Updates a Twitter user
|
|
function save_twitter_user($twitter_id, $screen_name)
|
|
{
|
|
// Check to see whether the Twitter user is already in the system,
|
|
// and update its screen name and uri if so.
|
|
try {
|
|
$fuser = Foreign_user::getForeignUser($twitter_id, TWITTER_SERVICE);
|
|
|
|
// Delete old record if Twitter user changed screen name
|
|
if ($fuser->nickname != $screen_name) {
|
|
$oldname = $fuser->nickname;
|
|
$fuser->delete();
|
|
common_log(LOG_INFO, sprintf('Twitter bridge - Updated nickname (and URI) ' .
|
|
'for Twitter user %1$d - %2$s, was %3$s.',
|
|
$fuser->id,
|
|
$screen_name,
|
|
$oldname));
|
|
}
|
|
} catch (NoResultException $e) {
|
|
// No old users exist for this id
|
|
|
|
// Kill any old, invalid records for this screen name
|
|
// XXX: Is this really only supposed to be run if the above getForeignUser fails?
|
|
try {
|
|
$fuser = Foreign_user::getByNickname($screen_name, TWITTER_SERVICE);
|
|
$fuser->delete();
|
|
common_log(
|
|
LOG_INFO,
|
|
sprintf(
|
|
'Twitter bridge - deteted old record for Twitter ' .
|
|
'screen name "%s" belonging to Twitter ID %d.',
|
|
$screen_name,
|
|
$fuser->id
|
|
)
|
|
);
|
|
} catch (NoResultException $e) {
|
|
// No old users exist for this screen_name
|
|
}
|
|
}
|
|
|
|
return add_twitter_user($twitter_id, $screen_name);
|
|
}
|
|
|
|
function is_twitter_bound($notice, $flink) {
|
|
|
|
// Don't send activity activities (at least for now)
|
|
if ($notice->object_type == ActivityObject::ACTIVITY) {
|
|
return false;
|
|
}
|
|
|
|
$allowedVerbs = array(ActivityVerb::POST);
|
|
|
|
// Default behavior: always send repeats
|
|
if (empty($flink))
|
|
array_push($allowedVerbs, ActivityVerb::SHARE);
|
|
// Otherwise, check to see if repeats are allowed
|
|
else if (($flink->noticesync & FOREIGN_NOTICE_SEND_REPEAT) == FOREIGN_NOTICE_SEND_REPEAT)
|
|
array_push($allowedVerbs, ActivityVerb::SHARE);
|
|
|
|
// Don't send things that aren't posts or repeats (at least for now)
|
|
if (!in_array($notice->verb, $allowedVerbs)) {
|
|
return false;
|
|
}
|
|
|
|
// Check to see if notice should go to Twitter
|
|
if (!empty($flink) && (($flink->noticesync & FOREIGN_NOTICE_SEND) == FOREIGN_NOTICE_SEND)) {
|
|
|
|
// If it's not a Twitter-style reply, or if the user WANTS to send replies,
|
|
// or if it's in reply to a twitter notice
|
|
if ( (($flink->noticesync & FOREIGN_NOTICE_SEND_REPLY) == FOREIGN_NOTICE_SEND_REPLY) ||
|
|
is_twitter_notice($notice->reply_to) || is_twitter_notice($notice->repeat_of) ||
|
|
(empty($notice->reply_to) && !preg_match('/^@[a-zA-Z0-9_]{1,15}\b/u', $notice->content)) ){
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function is_twitter_notice($id)
|
|
{
|
|
$n2s = Notice_to_status::getKV('notice_id', $id);
|
|
|
|
return (!empty($n2s));
|
|
}
|
|
|
|
/**
|
|
* Pull the formatted status ID number from a Twitter status object
|
|
* returned via JSON from Twitter API.
|
|
*
|
|
* Encapsulates checking for the id_str attribute, which is required
|
|
* to read 64-bit "Snowflake" ID numbers on a 32-bit system -- the
|
|
* integer id attribute gets corrupted into a double-precision float,
|
|
* losing a few digits of precision.
|
|
*
|
|
* Warning: avoid performing arithmetic or direct comparisons with
|
|
* this number, as it may get coerced back to a double on 32-bit.
|
|
*
|
|
* @param object $status
|
|
* @param string $field base field name if not 'id'
|
|
* @return mixed id number as int or string
|
|
*/
|
|
function twitter_id($status, $field='id')
|
|
{
|
|
$field_str = "{$field}_str";
|
|
if (isset($status->$field_str)) {
|
|
// String version of the id -- required on 32-bit systems
|
|
// since the 64-bit numbers get corrupted as ints.
|
|
return $status->$field_str;
|
|
} else {
|
|
return $status->$field;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if we need to broadcast a notice over the Twitter bridge, and
|
|
* do so if necessary. Will determine whether to do a straight post or
|
|
* a repeat/retweet
|
|
*
|
|
* This function is meant to be called directly from TwitterQueueHandler.
|
|
*
|
|
* @param Notice $notice
|
|
* @return boolean true if complete or successful, false if we should retry
|
|
*/
|
|
function broadcast_twitter($notice)
|
|
{
|
|
try {
|
|
$flink = Foreign_link::getByUserID($notice->profile_id, TWITTER_SERVICE);
|
|
} catch (NoResultException $e) {
|
|
// Alright so don't broadcast it then! (since there's no foreign link)
|
|
return true;
|
|
}
|
|
|
|
// Don't bother with basic auth, since it's no longer allowed
|
|
if (TwitterOAuthClient::isPackedToken($flink->credentials)) {
|
|
if (is_twitter_bound($notice, $flink)) {
|
|
if (!empty($notice->repeat_of) && is_twitter_notice($notice->repeat_of)) {
|
|
$retweet = retweet_notice($flink, Notice::getKV('id', $notice->repeat_of));
|
|
if (is_object($retweet)) {
|
|
Notice_to_status::saveNew($notice->id, twitter_id($retweet));
|
|
return true;
|
|
} else {
|
|
// Our error processing will have decided if we need to requeue
|
|
// this or can discard safely.
|
|
return $retweet;
|
|
}
|
|
} else {
|
|
return broadcast_oauth($notice, $flink);
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send a retweet to Twitter for a notice that has been previously bridged
|
|
* in or out.
|
|
*
|
|
* Warning: the return value is not guaranteed to be an object; some error
|
|
* conditions will return a 'true' which should be passed on to a calling
|
|
* queue handler.
|
|
*
|
|
* No local information about the resulting retweet is saved: it's up to
|
|
* caller to save new mappings etc if appropriate.
|
|
*
|
|
* @param Foreign_link $flink
|
|
* @param Notice $notice
|
|
* @return mixed object with resulting Twitter status data on success, or true/false/null on error conditions.
|
|
*/
|
|
function retweet_notice($flink, $notice)
|
|
{
|
|
$token = TwitterOAuthClient::unpackToken($flink->credentials);
|
|
$client = new TwitterOAuthClient($token->key, $token->secret);
|
|
|
|
$id = twitter_status_id($notice);
|
|
|
|
if (empty($id)) {
|
|
common_log(LOG_WARNING, "Trying to retweet notice {$notice->id} with no known status id.");
|
|
return null;
|
|
}
|
|
|
|
try {
|
|
$status = $client->statusesRetweet($id);
|
|
return $status;
|
|
} catch (OAuthClientException $e) {
|
|
return process_error($e, $flink, $notice);
|
|
}
|
|
}
|
|
|
|
function twitter_status_id($notice)
|
|
{
|
|
$n2s = Notice_to_status::getKV('notice_id', $notice->id);
|
|
if (empty($n2s)) {
|
|
return null;
|
|
} else {
|
|
return $n2s->status_id;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Pull any extra information from a notice that we should transfer over
|
|
* to Twitter beyond the notice text itself.
|
|
*
|
|
* @param Notice $notice
|
|
* @return array of key-value pairs for Twitter update submission
|
|
* @access private
|
|
*/
|
|
function twitter_update_params($notice)
|
|
{
|
|
$params = array();
|
|
if ($notice->lat || $notice->lon) {
|
|
$params['lat'] = $notice->lat;
|
|
$params['long'] = $notice->lon;
|
|
}
|
|
if (!empty($notice->reply_to) && is_twitter_notice($notice->reply_to)) {
|
|
$reply = Notice::getKV('id', $notice->reply_to);
|
|
$params['in_reply_to_status_id'] = twitter_status_id($reply);
|
|
}
|
|
return $params;
|
|
}
|
|
|
|
function broadcast_oauth($notice, Foreign_link $flink) {
|
|
try {
|
|
$user = $flink->getUser();
|
|
} catch (ServerException $e) {
|
|
common_log(LOG_WARNING, 'Discarding broadcast_oauth for notice '.$notice->id.' because of exception: '.$e->getMessage());
|
|
return true;
|
|
}
|
|
$statustxt = format_status($notice);
|
|
$params = twitter_update_params($notice);
|
|
|
|
$token = TwitterOAuthClient::unpackToken($flink->credentials);
|
|
$client = new TwitterOAuthClient($token->key, $token->secret);
|
|
$status = null;
|
|
|
|
try {
|
|
$status = $client->statusesUpdate($statustxt, $params);
|
|
if (!empty($status)) {
|
|
Notice_to_status::saveNew($notice->id, twitter_id($status));
|
|
}
|
|
} catch (OAuthClientException $e) {
|
|
return process_error($e, $flink, $notice);
|
|
}
|
|
|
|
if (empty($status)) {
|
|
// This could represent a failure posting,
|
|
// or the Twitter API might just be behaving flakey.
|
|
$errmsg = sprintf('Twitter bridge - No data returned by Twitter API when ' .
|
|
'trying to post notice %d for User %s (user id %d).',
|
|
$notice->id,
|
|
$user->nickname,
|
|
$user->id);
|
|
|
|
common_log(LOG_WARNING, $errmsg);
|
|
|
|
return false;
|
|
}
|
|
|
|
// Notice crossed the great divide
|
|
$msg = sprintf('Twitter bridge - posted notice %d to Twitter using ' .
|
|
'OAuth for User %s (user id %d).',
|
|
$notice->id,
|
|
$user->nickname,
|
|
$user->id);
|
|
|
|
common_log(LOG_INFO, $msg);
|
|
|
|
return true;
|
|
}
|
|
|
|
function process_error($e, $flink, $notice)
|
|
{
|
|
$user = $flink->getUser();
|
|
$code = $e->getCode();
|
|
|
|
$logmsg = sprintf('Twitter bridge - %d posting notice %d for ' .
|
|
'User %s (user id: %d): %s.',
|
|
$code,
|
|
$notice->id,
|
|
$user->nickname,
|
|
$user->id,
|
|
$e->getMessage());
|
|
|
|
common_log(LOG_WARNING, $logmsg);
|
|
|
|
// http://dev.twitter.com/pages/responses_errors
|
|
switch($code) {
|
|
case 400:
|
|
// Probably invalid data (bad Unicode chars or coords) that
|
|
// cannot be resolved by just sending again.
|
|
//
|
|
// It could also be rate limiting, but retrying immediately
|
|
// won't help much with that, so we'll discard for now.
|
|
// If a facility for retrying things later comes up in future,
|
|
// we can detect the rate-limiting headers and use that.
|
|
//
|
|
// Discard the message permanently.
|
|
return true;
|
|
break;
|
|
case 401:
|
|
// Probably a revoked or otherwise bad access token - nuke!
|
|
remove_twitter_link($flink);
|
|
return true;
|
|
break;
|
|
case 403:
|
|
// User has exceeder her rate limit -- toss the notice
|
|
return true;
|
|
break;
|
|
case 404:
|
|
// Resource not found. Shouldn't happen much on posting,
|
|
// but just in case!
|
|
//
|
|
// Consider it a matter for tossing the notice.
|
|
return true;
|
|
break;
|
|
default:
|
|
|
|
// For every other case, it's probably some flakiness so try
|
|
// sending the notice again later (requeue).
|
|
|
|
return false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
function format_status($notice)
|
|
{
|
|
// Start with the plaintext source of this notice...
|
|
$statustxt = $notice->content;
|
|
|
|
// Convert !groups to #hashes
|
|
// XXX: Make this an optional setting?
|
|
$statustxt = preg_replace('/(^|\s)!([A-Za-z0-9]{1,64})/', "\\1#\\2", $statustxt);
|
|
|
|
// detect links, each link uses 23 characters on twitter
|
|
$numberOfLinks = preg_match_all('`((http|https|ftp)://[^\s<]+[^\s<\.)])`i', $statustxt);
|
|
$statusWithoutLinks = preg_replace('`((http|https|ftp)://[^\s<]+[^\s<\.)])`i', '', $statustxt);
|
|
$statusLength = mb_strlen($statusWithoutLinks) + $numberOfLinks * 23;
|
|
|
|
// Twitter still has a 140-char hardcoded max.
|
|
if ($statusLength > 140) {
|
|
$noticeUrl = common_shorten_url($notice->getUrl());
|
|
// each link uses 23 chars on twitter + 3 for the ' … ' => 26
|
|
$statustxt = mb_substr($statustxt, 0, 140 - 26) . ' … ' . $noticeUrl;
|
|
}
|
|
|
|
return $statustxt;
|
|
}
|
|
|
|
function remove_twitter_link($flink)
|
|
{
|
|
$user = $flink->getUser();
|
|
|
|
common_log(LOG_INFO, 'Removing Twitter bridge Foreign link for ' .
|
|
"user $user->nickname (user id: $user->id).");
|
|
|
|
$result = $flink->safeDelete();
|
|
|
|
if (empty($result)) {
|
|
common_log(LOG_ERR, 'Could not remove Twitter bridge ' .
|
|
"Foreign_link for $user->nickname (user id: $user->id)!");
|
|
common_log_db_error($flink, 'DELETE', __FILE__);
|
|
}
|
|
|
|
// Notify the user that her Twitter bridge is down
|
|
|
|
if (isset($user->email)) {
|
|
$result = mail_twitter_bridge_removed($user);
|
|
|
|
if (!$result) {
|
|
$msg = 'Unable to send email to notify ' .
|
|
"$user->nickname (user id: $user->id) " .
|
|
'that their Twitter bridge link was ' .
|
|
'removed!';
|
|
|
|
common_log(LOG_WARNING, $msg);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send a mail message to notify a user that her Twitter bridge link
|
|
* has stopped working, and therefore has been removed. This can
|
|
* happen when the user changes her Twitter password, or otherwise
|
|
* revokes access.
|
|
*
|
|
* @param User $user user whose Twitter bridge link has been removed
|
|
*
|
|
* @return boolean success flag
|
|
*/
|
|
function mail_twitter_bridge_removed($user)
|
|
{
|
|
$profile = $user->getProfile();
|
|
|
|
common_switch_locale($user->language);
|
|
|
|
// TRANS: Mail subject after forwarding notices to Twitter has stopped working.
|
|
$subject = sprintf(_m('Your Twitter bridge has been disabled'));
|
|
|
|
$site_name = common_config('site', 'name');
|
|
|
|
// TRANS: Mail body after forwarding notices to Twitter has stopped working.
|
|
// TRANS: %1$ is the name of the user the mail is sent to, %2$s is a URL to the
|
|
// TRANS: Twitter settings, %3$s is the StatusNet sitename.
|
|
$body = sprintf(_m('Hi, %1$s. We\'re sorry to inform you that your ' .
|
|
'link to Twitter has been disabled. We no longer seem to have ' .
|
|
'permission to update your Twitter status. Did you maybe revoke ' .
|
|
'%3$s\'s access?' . "\n\n" .
|
|
'You can re-enable your Twitter bridge by visiting your ' .
|
|
"Twitter settings page:\n\n\t%2\$s\n\n" .
|
|
"Regards,\n%3\$s"),
|
|
$profile->getBestName(),
|
|
common_local_url('twittersettings'),
|
|
common_config('site', 'name'));
|
|
|
|
common_switch_locale();
|
|
return mail_to_user($user, $subject, $body);
|
|
}
|