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-rw-r--r--plugins/SubMirror/actions/basemirror.php169
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diff --git a/plugins/SubMirror/actions/basemirror.php b/plugins/SubMirror/actions/basemirror.php
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+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2010, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * PHP version 5
+ *
+ * @category Action
+ * @package StatusNet
+ * @author Brion Vibber <brion@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link http://status.net/
+ */
+
+if (!defined('STATUSNET')) {
+ exit(1);
+}
+
+/**
+ * Takes parameters:
+ *
+ * - feed: a profile ID
+ * - token: session token to prevent CSRF attacks
+ * - ajax: boolean; whether to return Ajax or full-browser results
+ *
+ * Only works if the current user is logged in.
+ *
+ * @category Action
+ * @package StatusNet
+ * @copyright 2010 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link http://status.net/
+ */
+
+abstract class BaseMirrorAction extends Action
+{
+ var $user;
+ var $profile;
+
+ /**
+ * Check pre-requisites and instantiate attributes
+ *
+ * @param Array $args array of arguments (URL, GET, POST)
+ *
+ * @return boolean success flag
+ */
+
+ function prepare($args)
+ {
+ parent::prepare($args);
+ return $this->sharedBoilerplate();
+ }
+
+ protected function validateFeedUrl($url)
+ {
+ if (common_valid_http_url($url)) {
+ return $url;
+ } else {
+ $this->clientError(_m("Invalid feed URL."));
+ }
+ }
+
+ protected function validateProfile($id)
+ {
+ $id = intval($id);
+ $profile = Profile::staticGet('id', $id);
+ if ($profile && $profile->id != $this->user->id) {
+ return $profile;
+ }
+ // TRANS: Error message returned to user when setting up feed mirroring, but we were unable to resolve the given URL to a working feed.
+ $this->clientError(_m("Invalid profile for mirroring."));
+ }
+
+ /**
+ *
+ * @param string $url
+ * @return Profile
+ */
+ protected function profileForFeed($url)
+ {
+ $oprofile = Ostatus_profile::ensureProfileURL($url);
+ if ($oprofile->isGroup()) {
+ $this->clientError(_m("Can't mirror a StatusNet group at this time."));
+ }
+ $this->oprofile = $oprofile; // @fixme ugly side effect :D
+ return $oprofile->localProfile();
+ }
+
+ /**
+ * @fixme none of this belongs in end classes
+ * this stuff belongs in shared code!
+ */
+ function sharedBoilerplate()
+ {
+ // Only allow POST requests
+
+ if ($_SERVER['REQUEST_METHOD'] != 'POST') {
+ $this->clientError(_('This action only accepts POST requests.'));
+ return false;
+ }
+
+ // CSRF protection
+
+ $token = $this->trimmed('token');
+
+ if (!$token || $token != common_session_token()) {
+ $this->clientError(_('There was a problem with your session token.'.
+ ' Try again, please.'));
+ return false;
+ }
+
+ // Only for logged-in users
+
+ $this->user = common_current_user();
+
+ if (empty($this->user)) {
+ $this->clientError(_('Not logged in.'));
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Handle request
+ *
+ * Does the subscription and returns results.
+ *
+ * @param Array $args unused.
+ *
+ * @return void
+ */
+
+ function handle($args)
+ {
+ // Throws exception on error
+ $this->saveMirror();
+
+ if ($this->boolean('ajax')) {
+ $this->startHTML('text/xml;charset=utf-8');
+ $this->elementStart('head');
+ $this->element('title', null, _('Subscribed'));
+ $this->elementEnd('head');
+ $this->elementStart('body');
+ $unsubscribe = new EditMirrorForm($this, $this->profile);
+ $unsubscribe->show();
+ $this->elementEnd('body');
+ $this->elementEnd('html');
+ } else {
+ $url = common_local_url('mirrorsettings');
+ common_redirect($url, 303);
+ }
+ }
+
+ abstract function saveMirror();
+}