gnu-social/plugins/Bookmark/importdelicious.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* Import del.icio.us bookmarks backups
*
* PHP version 5
*
* 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/>.
*
* @category Bookmark
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* UI for importing del.icio.us bookmark backups
*
* @category Bookmark
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class ImportdeliciousAction extends Action
{
protected $success = false;
private $inprogress = false;
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/**
* Return the title of the page
*
* @return string page title
*/
function title()
{
return _("Import del.icio.us bookmarks");
}
/**
* For initializing members of the class.
*
* @param array $argarray misc. arguments
*
* @return boolean true
*/
function prepare($argarray)
{
parent::prepare($argarray);
$cur = common_current_user();
if (empty($cur)) {
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throw new ClientException(_('Only logged-in users can '.
'import del.icio.us backups.'),
403);
}
if (!$cur->hasRight(BookmarkPlugin::IMPORTDELICIOUS)) {
throw new ClientException(_('You may not restore your account.'), 403);
}
return true;
}
/**
* Handler method
*
* @param array $argarray is ignored since it's now passed in in prepare()
*
* @return void
*/
function handle($argarray=null)
{
parent::handle($argarray);
if ($this->isPost()) {
$this->importDelicious();
} else {
$this->showPage();
}
return;
}
/**
* Queue a file for importation
*
* Uses the DeliciousBackupImporter class; may take a long time!
*
* @return void
*/
function importDelicious()
{
$this->checkSessionToken();
if (!isset($_FILES[ImportDeliciousForm::FILEINPUT]['error'])) {
throw new ClientException(_('No uploaded file.'));
}
switch ($_FILES[ImportDeliciousForm::FILEINPUT]['error']) {
case UPLOAD_ERR_OK: // success, jump out
break;
case UPLOAD_ERR_INI_SIZE:
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// TRANS: Client exception thrown when an uploaded file is too large.
throw new ClientException(_('The uploaded file exceeds the ' .
'upload_max_filesize directive in php.ini.'));
return;
case UPLOAD_ERR_FORM_SIZE:
throw new ClientException(
// TRANS: Client exception.
_('The uploaded file exceeds the MAX_FILE_SIZE directive' .
' that was specified in the HTML form.'));
return;
case UPLOAD_ERR_PARTIAL:
@unlink($_FILES[ImportDeliciousForm::FILEINPUT]['tmp_name']);
// TRANS: Client exception.
throw new ClientException(_('The uploaded file was only' .
' partially uploaded.'));
return;
case UPLOAD_ERR_NO_FILE:
// No file; probably just a non-AJAX submission.
throw new ClientException(_('No uploaded file.'));
return;
case UPLOAD_ERR_NO_TMP_DIR:
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// TRANS: Client exception thrown when a temporary folder is not present
throw new ClientException(_('Missing a temporary folder.'));
return;
case UPLOAD_ERR_CANT_WRITE:
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// TRANS: Client exception thrown when writing to disk is not possible
throw new ClientException(_('Failed to write file to disk.'));
return;
case UPLOAD_ERR_EXTENSION:
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// TRANS: Client exception thrown when a file upload has been stopped
throw new ClientException(_('File upload stopped by extension.'));
return;
default:
common_log(LOG_ERR, __METHOD__ . ": Unknown upload error " .
$_FILES[ImportDeliciousForm::FILEINPUT]['error']);
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// TRANS: Client exception thrown when a file upload operation has failed
throw new ClientException(_('System error uploading file.'));
return;
}
$filename = $_FILES[ImportDeliciousForm::FILEINPUT]['tmp_name'];
try {
if (!file_exists($filename)) {
throw new ServerException("No such file '$filename'.");
}
if (!is_file($filename)) {
throw new ServerException("Not a regular file: '$filename'.");
}
if (!is_readable($filename)) {
throw new ServerException("File '$filename' not readable.");
}
common_debug(sprintf(_("Getting backup from file '%s'."), $filename));
$html = file_get_contents($filename);
// Enqueue for processing.
$qm = QueueManager::get();
$qm->enqueue(array(common_current_user(), $html), 'dlcsback');
if ($qm instanceof UnQueueManager) {
// No active queuing means we've actually just completed the job!
$this->success = true;
} else {
// We've fed data into background queues, and it's probably still running.
$this->inprogress = true;
}
$this->showPage();
} catch (Exception $e) {
// Delete the file and re-throw
@unlink($_FILES[ImportDeliciousForm::FILEINPUT]['tmp_name']);
throw $e;
}
}
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/**
* Show the content of the page
*
* @return void
*/
function showContent()
{
if ($this->success) {
$this->element('p', null,
_('Bookmarks have been imported. Your bookmarks should now appear in search and your profile page.'));
} else if ($this->inprogress) {
$this->element('p', null,
_('Bookmarks are being imported. Please wait a few minutes for results.'));
} else {
$form = new ImportDeliciousForm($this);
$form->show();
}
}
/**
* Return true if read only.
*
* MAY override
*
* @param array $args other arguments
*
* @return boolean is read only action?
*/
function isReadOnly($args)
{
return !$this->isPost();
}
}
/**
* A form for backing up the account.
*
* @category Account
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class ImportDeliciousForm extends Form
{
const FILEINPUT = 'deliciousbackupfile';
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/**
* Constructor
*
* Set the encoding type, since this is a file upload.
*
* @param HTMLOutputter $out output channel
*
* @return ImportDeliciousForm this
*/
function __construct($out=null)
{
parent::__construct($out);
$this->enctype = 'multipart/form-data';
}
/**
* Class of the form.
*
* @return string the form's class
*/
function formClass()
{
return 'form_import_delicious';
}
/**
* URL the form posts to
*
* @return string the form's action URL
*/
function action()
{
return common_local_url('importdelicious');
}
/**
* Output form data
*
* Really, just instructions for doing a backup.
*
* @return void
*/
function formData()
{
$this->out->elementStart('p', 'instructions');
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$this->out->raw(_('You can upload a backed-up '.
'delicious.com bookmarks file.'));
$this->out->elementEnd('p');
$this->out->elementStart('ul', 'form_data');
$this->out->elementStart('li', array ('id' => 'settings_attach'));
$this->out->element('input', array('name' => self::FILEINPUT,
'type' => 'file',
'id' => self::FILEINPUT));
$this->out->elementEnd('li');
$this->out->elementEnd('ul');
}
/**
* Buttons for the form
*
* In this case, a single submit button
*
* @return void
*/
function formActions()
{
$this->out->submit('submit',
_m('BUTTON', 'Upload'),
'submit',
null,
_('Upload the file'));
}
}