360 lines
9.6 KiB
PHP
360 lines
9.6 KiB
PHP
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<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2010, StatusNet, Inc.
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*
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* Restore a backup of your own account from the browser
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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 Account
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2010 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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* Restore a backup of your own account from the browser
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*
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* @category Account
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2010 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 RestoreaccountAction extends Action
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{
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private $success = false;
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/**
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* Returns the title of the page
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*
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* @return string page title
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*/
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function title()
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{
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return _("Restore account");
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}
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/**
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* For initializing members of the class.
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*
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* @param array $argarray misc. arguments
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*
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* @return boolean true
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*/
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function prepare($argarray)
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{
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parent::prepare($argarray);
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$cur = common_current_user();
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if (empty($cur)) {
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throw new ClientException(_('Only logged-in users can restore their account.'), 403);
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}
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if (!$cur->hasRight(Right::RESTOREACCOUNT)) {
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throw new ClientException(_('You may not restore your account.'), 403);
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}
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return true;
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}
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/**
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* Handler method
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*
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* @param array $argarray is ignored since it's now passed in in prepare()
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*
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* @return void
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*/
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function handle($argarray=null)
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{
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parent::handle($args);
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if ($this->isPost()) {
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$this->restoreAccount();
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} else {
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$this->showPage();
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}
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return;
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}
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/**
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* Queue a file for restoration
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*
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* Uses the UserActivityStream class; may take a long time!
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*
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* @return void
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*/
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function restoreAccount()
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{
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$this->checkSessionToken();
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if (!isset($_FILES['restorefile']['error'])) {
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throw new ClientException(_('No uploaded file.'));
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}
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switch ($_FILES['restorefile']['error']) {
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case UPLOAD_ERR_OK: // success, jump out
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break;
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case UPLOAD_ERR_INI_SIZE:
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// TRANS: Client exception thrown when an uploaded file is larger than set in php.ini.
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throw new ClientException(_('The uploaded file exceeds the ' .
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'upload_max_filesize directive in php.ini.'));
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return;
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case UPLOAD_ERR_FORM_SIZE:
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throw new ClientException(
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// TRANS: Client exception.
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_('The uploaded file exceeds the MAX_FILE_SIZE directive' .
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' that was specified in the HTML form.'));
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return;
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case UPLOAD_ERR_PARTIAL:
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@unlink($_FILES['restorefile']['tmp_name']);
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// TRANS: Client exception.
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throw new ClientException(_('The uploaded file was only' .
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' partially uploaded.'));
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return;
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case UPLOAD_ERR_NO_FILE:
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// No file; probably just a non-AJAX submission.
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return;
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case UPLOAD_ERR_NO_TMP_DIR:
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// TRANS: Client exception thrown when a temporary folder is not present to store a file upload.
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throw new ClientException(_('Missing a temporary folder.'));
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return;
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case UPLOAD_ERR_CANT_WRITE:
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// TRANS: Client exception thrown when writing to disk is not possible during a file upload operation.
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throw new ClientException(_('Failed to write file to disk.'));
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return;
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case UPLOAD_ERR_EXTENSION:
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// TRANS: Client exception thrown when a file upload operation has been stopped by an extension.
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throw new ClientException(_('File upload stopped by extension.'));
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return;
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default:
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common_log(LOG_ERR, __METHOD__ . ": Unknown upload error " .
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$_FILES['restorefile']['error']);
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// TRANS: Client exception thrown when a file upload operation has failed with an unknown reason.
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throw new ClientException(_('System error uploading file.'));
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return;
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}
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$filename = $_FILES['restorefile']['tmp_name'];
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try {
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if (!file_exists($filename)) {
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throw new ServerException("No such file '$filename'.");
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}
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if (!is_file($filename)) {
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throw new ServerException("Not a regular file: '$filename'.");
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}
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if (!is_readable($filename)) {
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throw new ServerException("File '$filename' not readable.");
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}
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common_debug(sprintf(_("Getting backup from file '%s'."), $filename));
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$xml = file_get_contents($filename);
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// This check is costly but we should probably give
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// the user some info ahead of time.
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$doc = DOMDocument::loadXML($xml);
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$feed = $doc->documentElement;
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if ($feed->namespaceURI != Activity::ATOM ||
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$feed->localName != 'feed') {
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throw new ClientException(_("Not an atom feed."));
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}
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// Enqueue for processing.
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$qm = QueueManager::get();
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$qm->enqueue(array(common_current_user(), $xml, false), 'feedimp');
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$this->success = true;
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$this->showPage();
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} catch (Exception $e) {
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// Delete the file and re-throw
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@unlink($_FILES['restorefile']['tmp_name']);
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throw $e;
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}
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}
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/**
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* Show a little form so that the person can upload a file to restore
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*
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* @return void
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*/
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function showContent()
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{
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if ($this->success) {
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$this->element('p', null,
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_('Feed will be restored. Please wait a few minutes for results.'));
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} else {
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$form = new RestoreAccountForm($this);
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$form->show();
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}
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}
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/**
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* Return true if read only.
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*
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* MAY override
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*
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* @param array $args other arguments
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*
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* @return boolean is read only action?
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*/
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function isReadOnly($args)
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{
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return false;
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}
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/**
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* Return last modified, if applicable.
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*
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* MAY override
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*
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* @return string last modified http header
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*/
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function lastModified()
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{
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// For comparison with If-Last-Modified
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// If not applicable, return null
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return null;
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}
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/**
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* Return etag, if applicable.
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*
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* MAY override
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*
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* @return string etag http header
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*/
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function etag()
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{
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return null;
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}
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}
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/**
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* A form for backing up the account.
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*
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* @category Account
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2010 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 RestoreAccountForm extends Form
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{
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function __construct($out=null) {
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parent::__construct($out);
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$this->enctype = 'multipart/form-data';
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}
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/**
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* Class of the form.
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*
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* @return string the form's class
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*/
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function formClass()
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{
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return 'form_profile_restore';
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}
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/**
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* URL the form posts to
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*
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* @return string the form's action URL
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*/
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function action()
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{
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return common_local_url('restoreaccount');
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}
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/**
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* Output form data
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*
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* Really, just instructions for doing a backup.
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*
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* @return void
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*/
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function formData()
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{
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$this->out->elementStart('p', 'instructions');
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$this->out->raw(_('You can upload a backed-up stream in '.
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'<a href="http://activitystrea.ms/">Activity Streams</a> format.'));
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$this->out->elementEnd('p');
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$this->out->elementStart('ul', 'form_data');
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$this->out->elementStart('li', array ('id' => 'settings_attach'));
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$this->out->element('input', array('name' => 'restorefile',
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'type' => 'file',
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'id' => 'restorefile'));
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$this->out->elementEnd('li');
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$this->out->elementEnd('ul');
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}
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/**
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* Buttons for the form
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*
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* In this case, a single submit button
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*
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* @return void
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*/
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function formActions()
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{
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$this->out->submit('submit',
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_m('BUTTON', 'Upload'),
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'submit',
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null,
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_('Upload the file'));
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}
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}
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