forked from GNUsocial/gnu-social
de55d8f83b
lib/plugin.php now has a parent onAutoload function that finds most common
files that are used in plugins (actions, dataobjects, forms, libs etc.) if
they are put in the standardised directories ('actions', 'classes', 'forms',
'lib' and perhaps some others in the future).
328 lines
11 KiB
PHP
328 lines
11 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* Offline backup queue handler
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*
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* PHP version 5
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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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* @category Offline backup
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 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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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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/**
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* Offline backup queue handler
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*
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* @category General
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class OfflineBackupQueueHandler extends QueueHandler
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{
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function transport()
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{
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return 'backoff';
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}
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function handle($object)
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{
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$userId = $object;
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$user = User::getKV($userId);
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common_log(LOG_INFO, "Making backup file for user ".$user->nickname);
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$fileName = $this->makeBackupFile($user);
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common_log(LOG_INFO, "Notifying user ".$user->nickname . " of their new backup file.");
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$this->notifyBackupFile($user, $fileName);
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return true;
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}
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function makeBackupFile($user)
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{
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// XXX: this is pretty lose-y; try another way
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$tmpdir = sys_get_temp_dir() . '/offline-backup/' . $user->nickname . '/' . common_date_iso8601(common_sql_now());
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common_log(LOG_INFO, 'Writing backup data to ' . $tmpdir . ' for ' . $user->nickname);
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mkdir($tmpdir, 0700, true);
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$this->dumpNotices($user, $tmpdir);
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$this->dumpFaves($user, $tmpdir);
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$this->dumpSubscriptions($user, $tmpdir);
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$this->dumpSubscribers($user, $tmpdir);
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$this->dumpGroups($user, $tmpdir);
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$fileName = File::filename($user->getProfile(), "backup", "application/atom+xml");
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$fullPath = File::path($fileName);
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$this->makeActivityFeed($user, $tmpdir, $fullPath);
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$this->delTree($tmpdir);
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return $fileName;
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}
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function notifyBackupFile($user, $fileName)
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{
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$fileUrl = File::url($fileName);
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$body = sprintf(_m("The backup file you requested is ready for download.\n\n".
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"%s\n".
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"Thanks for your time,\n",
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"%s\n"),
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$fileUrl,
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common_config('site', 'name'));
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$headers = _mail_prepare_headers('offlinebackup', $user->nickname, $user->nickname);
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mail_to_user($user, _('Backup file ready for download'), $body, $headers);
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}
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function dumpNotices($user, $dir)
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{
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common_log(LOG_INFO, 'dumping notices by ' . $user->nickname . ' to directory ' . $dir);
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$profile = $user->getProfile();
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$stream = new ProfileNoticeStream($profile, $profile);
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$page = 1;
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do {
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$notice = $stream->getNotices(($page-1)*NOTICES_PER_PAGE, NOTICES_PER_PAGE + 1);
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while ($notice->fetch()) {
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try {
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$fname = $dir . '/'. common_date_iso8601($notice->created) . '-notice-' . $notice->id . '.atom';
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$data = $notice->asAtomEntry(false, false, false, null);
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common_log(LOG_INFO, 'dumping notice ' . $notice->id . ' to file ' . $fname);
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file_put_contents($fname, $data);
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$data = null;
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} catch (Exception $e) {
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common_log(LOG_ERR, "Error backing up notice " . $notice->id . ": " . $e->getMessage());
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continue;
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}
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}
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$page++;
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} while ($notice->N > NOTICES_PER_PAGE);
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}
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function dumpFaves($user, $dir)
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{
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common_log(LOG_INFO, 'dumping faves by ' . $user->nickname . ' to directory ' . $dir);
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$page = 1;
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do {
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$fave = Fave::byProfile($user->id, ($page-1)*NOTICES_PER_PAGE, NOTICES_PER_PAGE + 1);
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while ($fave->fetch()) {
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try {
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$fname = $dir . '/'. common_date_iso8601($fave->modified) . '-fave-' . $fave->notice_id . '.atom';
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$act = $fave->asActivity();
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$data = $act->asString(false, false, false);
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common_log(LOG_INFO, 'dumping fave of ' . $fave->notice_id . ' to file ' . $fname);
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file_put_contents($fname, $data);
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$data = null;
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} catch (Exception $e) {
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common_log(LOG_ERR, "Error backing up fave of " . $fave->notice_id . ": " . $e->getMessage());
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continue;
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}
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}
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$page++;
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} while ($fave->N > NOTICES_PER_PAGE);
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}
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function dumpSubscriptions($user, $dir)
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{
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common_log(LOG_INFO, 'dumping subscriptions by ' . $user->nickname . ' to directory ' . $dir);
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$page = 1;
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do {
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$sub = Subscription::bySubscriber($user->id, ($page-1)*PROFILES_PER_PAGE, PROFILES_PER_PAGE + 1);
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while ($sub->fetch()) {
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try {
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if ($sub->subscribed == $user->id) {
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continue;
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}
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$fname = $dir . '/'. common_date_iso8601($sub->created) . '-subscription-' . $sub->subscribed . '.atom';
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$act = $sub->asActivity();
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$data = $act->asString(false, false, false);
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common_log(LOG_INFO, 'dumping sub of ' . $sub->subscribed . ' to file ' . $fname);
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file_put_contents($fname, $data);
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$data = null;
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} catch (Exception $e) {
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common_log(LOG_ERR, "Error backing up subscription to " . $sub->subscribed . ": " . $e->getMessage());
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continue;
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}
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}
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$page++;
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} while ($sub->N > PROFILES_PER_PAGE);
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}
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function dumpSubscribers($user, $dir)
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{
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common_log(LOG_INFO, 'dumping subscribers to ' . $user->nickname . ' to directory ' . $dir);
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$page = 1;
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do {
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$sub = Subscription::bySubscribed($user->id, ($page-1)*PROFILES_PER_PAGE, PROFILES_PER_PAGE + 1);
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while ($sub->fetch()) {
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try {
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if ($sub->subscriber == $user->id) {
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continue;
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}
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$fname = $dir . '/'. common_date_iso8601($sub->created) . '-subscriber-' . $sub->subscriber . '.atom';
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$act = $sub->asActivity();
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$data = $act->asString(false, true, false);
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common_log(LOG_INFO, 'dumping sub by ' . $sub->subscriber . ' to file ' . $fname);
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file_put_contents($fname, $data);
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$data = null;
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} catch (Exception $e) {
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common_log(LOG_ERR, "Error backing up subscription from " . $sub->subscriber . ": " . $e->getMessage());
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continue;
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}
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}
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$page++;
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} while ($sub->N > PROFILES_PER_PAGE);
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}
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function dumpGroups($user, $dir)
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{
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common_log(LOG_INFO, 'dumping memberships of ' . $user->nickname . ' to directory ' . $dir);
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$page = 1;
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do {
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$mem = Group_member::byMember($user->id, ($page-1)*GROUPS_PER_PAGE, GROUPS_PER_PAGE + 1);
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while ($mem->fetch()) {
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try {
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$fname = $dir . '/'. common_date_iso8601($mem->created) . '-membership-' . $mem->group_id . '.atom';
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$act = $mem->asActivity();
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$data = $act->asString(false, false, false);
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common_log(LOG_INFO, 'dumping membership in ' . $mem->group_id . ' to file ' . $fname);
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file_put_contents($fname, $data);
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$data = null;
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} catch (Exception $e) {
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common_log(LOG_ERR, "Error backing up membership in " . $mem->group_id . ": " . $e->getMessage());
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continue;
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}
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}
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$page++;
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} while ($mem->N > GROUPS_PER_PAGE);
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}
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function makeActivityFeed($user, $tmpdir, $fullPath)
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{
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$handle = fopen($fullPath, 'c');
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$this->writeFeedHeader($user, $handle);
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$objects = scandir($tmpdir);
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rsort($objects);
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foreach ($objects as $object) {
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$objFull = $tmpdir . '/' . $object;
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if (!is_dir($objFull)) {
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$entry = file_get_contents($objFull);
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fwrite($handle, $entry);
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$entry = null;
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}
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}
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$this->writeFeedFooter($user, $handle);
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fclose($handle);
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}
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function writeFeedHeader($user, $handle)
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{
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fwrite($handle, '<?xml version="1.0" encoding="UTF-8"?>');
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fwrite($handle, "\n");
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fwrite($handle, '<feed xml:lang="en-US" xmlns="http://www.w3.org/2005/Atom" xmlns:thr="http://purl.org/syndication/thread/1.0" xmlns:georss="http://www.georss.org/georss" xmlns:activity="http://activitystrea.ms/spec/1.0/" xmlns:media="http://purl.org/syndication/atommedia" xmlns:poco="http://portablecontacts.net/spec/1.0" xmlns:ostatus="http://ostatus.org/schema/1.0" xmlns:statusnet="http://status.net/schema/api/1/">');
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fwrite($handle, "\n");
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$profile = $user->getProfile();
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$author = ActivityObject::fromProfile($profile);
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$xs = new XMLStringer();
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$author->outputTo($xs, 'author');
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fwrite($handle, $xs->getString());
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fwrite($handle, "\n");
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}
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function writeFeedFooter($user, $handle)
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{
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fwrite($handle, '</feed>');
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}
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function delTree($dir)
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{
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if (is_dir($dir)) {
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$objects = scandir($dir);
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foreach ($objects as $object) {
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if ($object != "." && $object != "..") {
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if (filetype($dir."/".$object) == "dir") {
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$this->delTree($dir."/".$object);
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} else {
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unlink($dir."/".$object);
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}
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}
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}
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reset($objects);
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rmdir($dir);
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}
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}
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}
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