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<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2009, 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/>.
*/
/**
* @package FeedSubPlugin
* @maintainer Brion Vibber <brion@status.net>
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
class FeedSubSettingsAction extends ConnectSettingsAction
{
protected $profile_uri;
protected $preview;
protected $munger;
/**
* Title of the page
*
* @return string Title of the page
*/
function title()
{
return _m('Feed subscriptions');
}
/**
* Instructions for use
*
* @return instructions for use
*/
function getInstructions()
{
return _m('You can subscribe to feeds from other sites; ' .
'updates will appear in your personal timeline.');
}
/**
* Content area of the page
*
* Shows a form for associating a Twitter account with this
* StatusNet account. Also lets the user set preferences.
*
* @return void
*/
function showContent()
{
$user = common_current_user();
$profile = $user->getProfile();
$this->elementStart('form', array('method' => 'post',
'id' => 'form_settings_feedsub',
'class' => 'form_settings',
'action' =>
common_local_url('feedsubsettings')));
$this->hidden('token', common_session_token());
$this->elementStart('fieldset', array('id' => 'settings_feeds'));
$this->elementStart('ul', 'form_data');
$this->elementStart('li', array('id' => 'settings_twitter_login_button'));
$this->input('profile_uri',
_m('Feed URL'),
$this->profile_uri,
_m('Enter the profile URL of a PubSubHubbub-enabled feed'));
$this->elementEnd('li');
$this->elementEnd('ul');
if ($this->preview) {
$this->submit('subscribe', _m('Subscribe'));
} else {
$this->submit('validate', _m('Continue'));
}
$this->elementEnd('fieldset');
$this->elementEnd('form');
if ($this->preview) {
$this->previewFeed();
}
}
/**
* Handle posts to this form
*
* Based on the button that was pressed, muxes out to other functions
* to do the actual task requested.
*
* All sub-functions reload the form with a message -- success or failure.
*
* @return void
*/
function handlePost()
{
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->showForm(_('There was a problem with your session token. '.
'Try again, please.'));
return;
}
if ($this->arg('validate')) {
$this->validateAndPreview();
} else if ($this->arg('subscribe')) {
$this->saveFeed();
} else {
$this->showForm(_('Unexpected form submission.'));
}
}
/**
* Set up and add a feed
*
* @return boolean true if feed successfully read
* Sends you back to input form if not.
*/
function validateFeed()
{
$profile_uri = trim($this->arg('profile_uri'));
if ($profile_uri == '') {
$this->showForm(_m('Empty remote profile URL!'));
return;
}
$this->profile_uri = $profile_uri;
// @fixme validate, normalize bla bla
try {
$oprofile = Ostatus_profile::ensureProfile($this->profile_uri);
$this->oprofile = $oprofile;
return true;
} catch (FeedSubBadURLException $e) {
$err = _m('Invalid URL or could not reach server.');
} catch (FeedSubBadResponseException $e) {
$err = _m('Cannot read feed; server returned error.');
} catch (FeedSubEmptyException $e) {
$err = _m('Cannot read feed; server returned an empty page.');
} catch (FeedSubBadHTMLException $e) {
$err = _m('Bad HTML, could not find feed link.');
} catch (FeedSubNoFeedException $e) {
$err = _m('Could not find a feed linked from this URL.');
} catch (FeedSubUnrecognizedTypeException $e) {
$err = _m('Not a recognized feed type.');
} catch (FeedSubException $e) {
// Any new ones we forgot about
$err = sprintf(_m('Bad feed URL: %s %s'), get_class($e), $e->getMessage());
}
$this->showForm($err);
return false;
}
function saveFeed()
{
if ($this->validateFeed()) {
$this->preview = true;
// And subscribe the current user to the local profile
$user = common_current_user();
if (!$this->oprofile->subscribe()) {
$this->showForm(_m("Failed to set up server-to-server subscription."));
return;
}
if ($this->oprofile->isGroup()) {
$group = $this->oprofile->localGroup();
if ($user->isMember($group)) {
$this->showForm(_m('Already a member!'));
} elseif (Group_member::join($this->profile->group_id, $user->id)) {
$this->showForm(_m('Joined remote group!'));
} else {
$this->showForm(_m('Remote group join failed!'));
}
} else {
$local = $this->oprofile->localProfile();
if ($user->isSubscribed($local)) {
$this->showForm(_m('Already subscribed!'));
} elseif ($this->oprofile->subscribeLocalToRemote($user)) {
$this->showForm(_m('Remote user subscribed!'));
} else {
$this->showForm(_m('Remote subscription failed!'));
}
}
}
}
function validateAndPreview()
{
if ($this->validateFeed()) {
$this->preview = true;
$this->showForm(_m('Previewing feed:'));
}
}
function previewFeed()
{
$this->text('Profile preview should go here');
}
function showScripts()
{
parent::showScripts();
$this->autofocus('feedurl');
}
}
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