8eca1b8dac
Changes the replacement of Twitter "entities" from in-place reverse ordering ('to preserve indices') to a forward-facing append-in-chunks that pulls in both the text and link portions, and escapes them all.
This unfortunately means first *de*-escaping the < and > that Twitter helpfully adds for us.... and any literal &blah;s that get written. This seems to match Twitter's web UI, however horrid it is.
702 lines
22 KiB
PHP
702 lines
22 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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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 Zach Copley <zach@status.net>
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* @author Julien C <chaumond@gmail.com>
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* @author Brion Vibber <brion@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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require_once INSTALLDIR . '/plugins/TwitterBridge/twitter.php';
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/**
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* Encapsulation of the Twitter status -> notice incoming bridge import.
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* Is used by both the polling twitterstatusfetcher.php daemon, and the
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* in-progress streaming import.
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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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* @author Julien C <chaumond@gmail.com>
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* @author Brion Vibber <brion@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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* @link http://twitter.com/
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*/
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class TwitterImport
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{
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public function importStatus($status)
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{
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// Hacktastic: filter out stuff coming from this StatusNet
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$source = mb_strtolower(common_config('integration', 'source'));
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if (preg_match("/$source/", mb_strtolower($status->source))) {
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common_debug($this->name() . ' - Skipping import of status ' .
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twitter_id($status) . ' with source ' . $source);
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return null;
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}
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// Don't save it if the user is protected
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// FIXME: save it but treat it as private
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if ($status->user->protected) {
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return null;
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}
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$notice = $this->saveStatus($status);
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return $notice;
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}
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function name()
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{
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return get_class($this);
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}
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function saveStatus($status)
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{
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$profile = $this->ensureProfile($status->user);
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if (empty($profile)) {
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common_log(LOG_ERR, $this->name() .
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' - Problem saving notice. No associated Profile.');
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return null;
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}
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$statusId = twitter_id($status);
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$statusUri = $this->makeStatusURI($status->user->screen_name, $statusId);
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// check to see if we've already imported the status
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$n2s = Notice_to_status::staticGet('status_id', $statusId);
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if (!empty($n2s)) {
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common_log(
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LOG_INFO,
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$this->name() .
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" - Ignoring duplicate import: {$statusId}"
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);
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return Notice::staticGet('id', $n2s->notice_id);
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}
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// If it's a retweet, save it as a repeat!
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if (!empty($status->retweeted_status)) {
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common_log(LOG_INFO, "Status {$statusId} is a retweet of " . twitter_id($status->retweeted_status) . ".");
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$original = $this->saveStatus($status->retweeted_status);
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if (empty($original)) {
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return null;
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} else {
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$author = $original->getProfile();
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// TRANS: Message used to repeat a notice. RT is the abbreviation of 'retweet'.
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// TRANS: %1$s is the repeated user's name, %2$s is the repeated notice.
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$content = sprintf(_m('RT @%1$s %2$s'),
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$author->nickname,
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$original->content);
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if (Notice::contentTooLong($content)) {
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$contentlimit = Notice::maxContent();
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$content = mb_substr($content, 0, $contentlimit - 4) . ' ...';
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}
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$repeat = Notice::saveNew($profile->id,
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$content,
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'twitter',
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array('repeat_of' => $original->id,
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'uri' => $statusUri,
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'is_local' => Notice::GATEWAY));
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common_log(LOG_INFO, "Saved {$repeat->id} as a repeat of {$original->id}");
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Notice_to_status::saveNew($repeat->id, $statusId);
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return $repeat;
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}
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}
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$notice = new Notice();
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$notice->profile_id = $profile->id;
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$notice->uri = $statusUri;
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$notice->url = $statusUri;
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$notice->created = strftime(
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'%Y-%m-%d %H:%M:%S',
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strtotime($status->created_at)
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);
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$notice->source = 'twitter';
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$notice->reply_to = null;
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$replyTo = twitter_id($status, 'in_reply_to_status_id');
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if (!empty($replyTo)) {
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common_log(LOG_INFO, "Status {$statusId} is a reply to status {$replyTo}");
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$n2s = Notice_to_status::staticGet('status_id', $replyTo);
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if (empty($n2s)) {
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common_log(LOG_INFO, "Couldn't find local notice for status {$replyTo}");
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} else {
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$reply = Notice::staticGet('id', $n2s->notice_id);
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if (empty($reply)) {
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common_log(LOG_INFO, "Couldn't find local notice for status {$replyTo}");
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} else {
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common_log(LOG_INFO, "Found local notice {$reply->id} for status {$replyTo}");
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$notice->reply_to = $reply->id;
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$notice->conversation = $reply->conversation;
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}
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}
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}
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if (empty($notice->conversation)) {
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$conv = Conversation::create();
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$notice->conversation = $conv->id;
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common_log(LOG_INFO, "No known conversation for status {$statusId} so making a new one {$conv->id}.");
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}
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$notice->is_local = Notice::GATEWAY;
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$notice->content = html_entity_decode($status->text, ENT_QUOTES, 'UTF-8');
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$notice->rendered = $this->linkify($status);
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if (Event::handle('StartNoticeSave', array(&$notice))) {
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$id = $notice->insert();
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if (!$id) {
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common_log_db_error($notice, 'INSERT', __FILE__);
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common_log(LOG_ERR, $this->name() .
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' - Problem saving notice.');
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}
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Event::handle('EndNoticeSave', array($notice));
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}
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Notice_to_status::saveNew($notice->id, $statusId);
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$this->saveStatusMentions($notice, $status);
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$this->saveStatusAttachments($notice, $status);
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$notice->blowOnInsert();
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return $notice;
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}
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/**
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* Make an URI for a status.
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*
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* @param object $status status object
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*
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* @return string URI
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*/
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function makeStatusURI($username, $id)
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{
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return 'http://twitter.com/#!/'
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. $username
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. '/status/'
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. $id;
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}
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/**
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* Look up a Profile by profileurl field. Profile::staticGet() was
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* not working consistently.
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*
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* @param string $nickname local nickname of the Twitter user
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* @param string $profileurl the profile url
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*
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* @return mixed value the first Profile with that url, or null
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*/
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function getProfileByUrl($nickname, $profileurl)
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{
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$profile = new Profile();
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$profile->nickname = $nickname;
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$profile->profileurl = $profileurl;
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$profile->limit(1);
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if ($profile->find()) {
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$profile->fetch();
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return $profile;
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}
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return null;
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}
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/**
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* Check to see if this Twitter status has already been imported
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*
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* @param Profile $profile Twitter user's local profile
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* @param string $statusUri URI of the status on Twitter
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*
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* @return mixed value a matching Notice or null
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*/
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function checkDupe($profile, $statusUri)
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{
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$notice = new Notice();
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$notice->uri = $statusUri;
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$notice->profile_id = $profile->id;
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$notice->limit(1);
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if ($notice->find()) {
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$notice->fetch();
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return $notice;
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}
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return null;
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}
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function ensureProfile($user)
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{
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// check to see if there's already a profile for this user
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$profileurl = 'http://twitter.com/' . $user->screen_name;
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$profile = $this->getProfileByUrl($user->screen_name, $profileurl);
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if (!empty($profile)) {
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common_debug($this->name() .
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" - Profile for $profile->nickname found.");
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// Check to see if the user's Avatar has changed
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$this->checkAvatar($user, $profile);
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return $profile;
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} else {
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common_debug($this->name() . ' - Adding profile and remote profile ' .
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"for Twitter user: $profileurl.");
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$profile = new Profile();
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$profile->query("BEGIN");
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$profile->nickname = $user->screen_name;
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$profile->fullname = $user->name;
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$profile->homepage = $user->url;
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$profile->bio = $user->description;
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$profile->location = $user->location;
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$profile->profileurl = $profileurl;
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$profile->created = common_sql_now();
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try {
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$id = $profile->insert();
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} catch(Exception $e) {
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common_log(LOG_WARNING, $this->name() . ' Couldn\'t insert profile - ' . $e->getMessage());
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}
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if (empty($id)) {
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common_log_db_error($profile, 'INSERT', __FILE__);
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$profile->query("ROLLBACK");
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return false;
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}
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// check for remote profile
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$remote_pro = Remote_profile::staticGet('uri', $profileurl);
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if (empty($remote_pro)) {
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$remote_pro = new Remote_profile();
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$remote_pro->id = $id;
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$remote_pro->uri = $profileurl;
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$remote_pro->created = common_sql_now();
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try {
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$rid = $remote_pro->insert();
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} catch (Exception $e) {
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common_log(LOG_WARNING, $this->name() . ' Couldn\'t save remote profile - ' . $e->getMessage());
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}
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if (empty($rid)) {
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common_log_db_error($profile, 'INSERT', __FILE__);
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$profile->query("ROLLBACK");
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return false;
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}
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}
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$profile->query("COMMIT");
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$this->saveAvatars($user, $id);
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return $profile;
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}
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}
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function checkAvatar($twitter_user, $profile)
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{
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global $config;
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$path_parts = pathinfo($twitter_user->profile_image_url);
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$newname = 'Twitter_' . $twitter_user->id . '_' .
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$path_parts['basename'];
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$oldname = $profile->getAvatar(48)->filename;
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if ($newname != $oldname) {
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common_debug($this->name() . ' - Avatar for Twitter user ' .
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"$profile->nickname has changed.");
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common_debug($this->name() . " - old: $oldname new: $newname");
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$this->updateAvatars($twitter_user, $profile);
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}
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if ($this->missingAvatarFile($profile)) {
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common_debug($this->name() . ' - Twitter user ' .
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$profile->nickname .
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' is missing one or more local avatars.');
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common_debug($this->name() ." - old: $oldname new: $newname");
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$this->updateAvatars($twitter_user, $profile);
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}
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}
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function updateAvatars($twitter_user, $profile) {
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global $config;
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$path_parts = pathinfo($twitter_user->profile_image_url);
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$img_root = substr($path_parts['basename'], 0, -11);
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$ext = $path_parts['extension'];
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$mediatype = $this->getMediatype($ext);
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foreach (array('mini', 'normal', 'bigger') as $size) {
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$url = $path_parts['dirname'] . '/' .
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$img_root . '_' . $size . ".$ext";
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$filename = 'Twitter_' . $twitter_user->id . '_' .
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$img_root . "_$size.$ext";
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$this->updateAvatar($profile->id, $size, $mediatype, $filename);
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$this->fetchAvatar($url, $filename);
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}
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}
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function missingAvatarFile($profile) {
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foreach (array(24, 48, 73) as $size) {
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$filename = $profile->getAvatar($size)->filename;
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$avatarpath = Avatar::path($filename);
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if (file_exists($avatarpath) == FALSE) {
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return true;
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}
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}
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return false;
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}
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function getMediatype($ext)
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{
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$mediatype = null;
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switch (strtolower($ext)) {
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case 'jpg':
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$mediatype = 'image/jpg';
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break;
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case 'gif':
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$mediatype = 'image/gif';
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break;
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default:
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$mediatype = 'image/png';
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}
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return $mediatype;
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}
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function saveAvatars($user, $id)
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{
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global $config;
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$path_parts = pathinfo($user->profile_image_url);
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$ext = $path_parts['extension'];
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$end = strlen('_normal' . $ext);
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$img_root = substr($path_parts['basename'], 0, -($end+1));
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$mediatype = $this->getMediatype($ext);
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foreach (array('mini', 'normal', 'bigger') as $size) {
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$url = $path_parts['dirname'] . '/' .
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$img_root . '_' . $size . ".$ext";
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$filename = 'Twitter_' . $user->id . '_' .
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$img_root . "_$size.$ext";
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if ($this->fetchAvatar($url, $filename)) {
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$this->newAvatar($id, $size, $mediatype, $filename);
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} else {
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common_log(LOG_WARNING, $id() .
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" - Problem fetching Avatar: $url");
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}
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}
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}
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function updateAvatar($profile_id, $size, $mediatype, $filename) {
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common_debug($this->name() . " - Updating avatar: $size");
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$profile = Profile::staticGet($profile_id);
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if (empty($profile)) {
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common_debug($this->name() . " - Couldn't get profile: $profile_id!");
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return;
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}
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$sizes = array('mini' => 24, 'normal' => 48, 'bigger' => 73);
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$avatar = $profile->getAvatar($sizes[$size]);
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// Delete the avatar, if present
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if ($avatar) {
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$avatar->delete();
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}
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$this->newAvatar($profile->id, $size, $mediatype, $filename);
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}
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function newAvatar($profile_id, $size, $mediatype, $filename)
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{
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global $config;
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$avatar = new Avatar();
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$avatar->profile_id = $profile_id;
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switch($size) {
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case 'mini':
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$avatar->width = 24;
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$avatar->height = 24;
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break;
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case 'normal':
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$avatar->width = 48;
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$avatar->height = 48;
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break;
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default:
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// Note: Twitter's big avatars are a different size than
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// StatusNet's (StatusNet's = 96)
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$avatar->width = 73;
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$avatar->height = 73;
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}
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$avatar->original = 0; // we don't have the original
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$avatar->mediatype = $mediatype;
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$avatar->filename = $filename;
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$avatar->url = Avatar::url($filename);
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$avatar->created = common_sql_now();
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try {
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$id = $avatar->insert();
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} catch (Exception $e) {
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common_log(LOG_WARNING, $this->name() . ' Couldn\'t insert avatar - ' . $e->getMessage());
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}
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if (empty($id)) {
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common_log_db_error($avatar, 'INSERT', __FILE__);
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return null;
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}
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common_debug($this->name() .
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" - Saved new $size avatar for $profile_id.");
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return $id;
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}
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/**
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* Fetch a remote avatar image and save to local storage.
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*
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* @param string $url avatar source URL
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* @param string $filename bare local filename for download
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* @return bool true on success, false on failure
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*/
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function fetchAvatar($url, $filename)
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{
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common_debug($this->name() . " - Fetching Twitter avatar: $url");
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$request = HTTPClient::start();
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$response = $request->get($url);
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if ($response->isOk()) {
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$avatarfile = Avatar::path($filename);
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$ok = file_put_contents($avatarfile, $response->getBody());
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if (!$ok) {
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common_log(LOG_WARNING, $this->name() .
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" - Couldn't open file $filename");
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return false;
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}
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} else {
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return false;
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}
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return true;
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}
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const URL = 1;
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const HASHTAG = 2;
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const MENTION = 3;
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|
|
|
function linkify($status)
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|
{
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$text = $status->text;
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|
|
|
if (empty($status->entities)) {
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$statusId = twitter_id($status);
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common_log(LOG_WARNING, "No entities data for {$statusId}; trying to fake up links ourselves.");
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$text = common_replace_urls_callback($text, 'common_linkify');
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$text = preg_replace('/(^|\"\;|\'|\(|\[|\{|\s+)#([\pL\pN_\-\.]{1,64})/e', "'\\1#'.TwitterStatusFetcher::tagLink('\\2')", $text);
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|
$text = preg_replace('/(^|\s+)@([a-z0-9A-Z_]{1,64})/e', "'\\1@'.TwitterStatusFetcher::atLink('\\2')", $text);
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return $text;
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|
}
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|
|
|
// Move all the entities into order so we can
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|
// replace them and escape surrounding plaintext
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|
// in order
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|
|
|
$toReplace = array();
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|
|
|
if (!empty($status->entities->urls)) {
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|
foreach ($status->entities->urls as $url) {
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$toReplace[$url->indices[0]] = array(self::URL, $url);
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|
}
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|
}
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|
|
|
if (!empty($status->entities->hashtags)) {
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|
foreach ($status->entities->hashtags as $hashtag) {
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$toReplace[$hashtag->indices[0]] = array(self::HASHTAG, $hashtag);
|
|
}
|
|
}
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|
|
|
if (!empty($status->entities->user_mentions)) {
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|
foreach ($status->entities->user_mentions as $mention) {
|
|
$toReplace[$mention->indices[0]] = array(self::MENTION, $mention);
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|
}
|
|
}
|
|
|
|
// sort in forward order by key
|
|
|
|
ksort($toReplace);
|
|
|
|
$result = '';
|
|
$cursor = 0;
|
|
|
|
foreach ($toReplace as $part) {
|
|
list($type, $object) = $part;
|
|
$start = $object->indices[0];
|
|
$end = $object->indices[1];
|
|
if ($cursor < $start) {
|
|
// Copy in the preceding plaintext
|
|
$result .= $this->twitEscape(mb_substr($text, $cursor, $start - $cursor));
|
|
$cursor = $start;
|
|
}
|
|
$orig = $this->twitEscape(mb_substr($text, $start, $end - $start));
|
|
switch($type) {
|
|
case self::URL:
|
|
$linkText = $this->makeUrlLink($object, $orig);
|
|
break;
|
|
case self::HASHTAG:
|
|
$linkText = $this->makeHashtagLink($object, $orig);
|
|
break;
|
|
case self::MENTION:
|
|
$linkText = $this->makeMentionLink($object, $orig);
|
|
break;
|
|
default:
|
|
$linkText = $orig;
|
|
continue;
|
|
}
|
|
$result .= $linkText;
|
|
$cursor = $end;
|
|
}
|
|
$last = $this->twitEscape(mb_substr($text, $cursor));
|
|
$result .= $last;
|
|
|
|
return $result;
|
|
}
|
|
|
|
function twitEscape($str)
|
|
{
|
|
// Twitter seems to preemptive turn < and > into < and >
|
|
// but doesn't for &, so while you may have some magic protection
|
|
// against XSS by not bothing to escape manually, you still get
|
|
// invalid XHTML. Thanks!
|
|
//
|
|
// Looks like their web interface pretty much sends anything
|
|
// through intact, so.... to do equivalent, decode all entities
|
|
// and then re-encode the special ones.
|
|
return htmlspecialchars(html_entity_decode($str, ENT_COMPAT, 'UTF-8'));
|
|
}
|
|
|
|
function makeUrlLink($object, $orig)
|
|
{
|
|
return "<a href='{$object->url}' class='extlink'>{$orig}</a>";
|
|
}
|
|
|
|
function makeHashtagLink($object, $orig)
|
|
{
|
|
return "#" . self::tagLink($object->text, substr($orig, 1));
|
|
}
|
|
|
|
function makeMentionLink($object, $orig)
|
|
{
|
|
return "@".self::atLink($object->screen_name, $object->name, substr($orig, 1));
|
|
}
|
|
|
|
static function tagLink($tag, $orig)
|
|
{
|
|
return "<a href='https://search.twitter.com/search?q=%23{$tag}' class='hashtag'>{$orig}</a>";
|
|
}
|
|
|
|
static function atLink($screenName, $fullName, $orig)
|
|
{
|
|
if (!empty($fullName)) {
|
|
return "<a href='http://twitter.com/#!/{$screenName}' title='{$fullName}'>{$orig}</a>";
|
|
} else {
|
|
return "<a href='http://twitter.com/#!/{$screenName}'>{$orig}</a>";
|
|
}
|
|
}
|
|
|
|
function saveStatusMentions($notice, $status)
|
|
{
|
|
$mentions = array();
|
|
|
|
if (empty($status->entities) || empty($status->entities->user_mentions)) {
|
|
return;
|
|
}
|
|
|
|
foreach ($status->entities->user_mentions as $mention) {
|
|
$flink = Foreign_link::getByForeignID($mention->id, TWITTER_SERVICE);
|
|
if (!empty($flink)) {
|
|
$user = User::staticGet('id', $flink->user_id);
|
|
if (!empty($user)) {
|
|
$reply = new Reply();
|
|
$reply->notice_id = $notice->id;
|
|
$reply->profile_id = $user->id;
|
|
common_log(LOG_INFO, __METHOD__ . ": saving reply: notice {$notice->id} to profile {$user->id}");
|
|
$id = $reply->insert();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Record URL links from the notice. Needed to get thumbnail records
|
|
* for referenced photo and video posts, etc.
|
|
*
|
|
* @param Notice $notice
|
|
* @param object $status
|
|
*/
|
|
function saveStatusAttachments($notice, $status)
|
|
{
|
|
if (common_config('attachments', 'process_links')) {
|
|
if (!empty($status->entities) && !empty($status->entities->urls)) {
|
|
foreach ($status->entities->urls as $url) {
|
|
File::processNew($url->url, $notice->id);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} |