forked from GNUsocial/gnu-social
457 lines
16 KiB
PHP
457 lines
16 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2009-2010, StatusNet, Inc.
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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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/**
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* @package OStatusPlugin
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* @maintainer Brion Vibber <brion@status.net>
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*/
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if (!defined('GNUSOCIAL') && !defined('STATUSNET')) { exit(1); }
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/**
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* Key UI methods:
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*
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* showInputForm() - form asking for a remote profile account or URL
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* We end up back here on errors
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*
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* showPreviewForm() - surrounding form for preview-and-confirm
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* preview() - display profile for a remote user
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*
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* success() - redirects to subscriptions page on subscribe
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*/
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class OStatusSubAction extends Action
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{
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protected $profile_uri; // provided acct: or URI of remote entity
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protected $oprofile; // Ostatus_profile of remote entity, if valid
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protected function prepare(array $args=array())
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{
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parent::prepare($args);
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if (!common_logged_in()) {
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// XXX: selfURL() didn't work. :<
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common_set_returnto($_SERVER['REQUEST_URI']);
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if (Event::handle('RedirectToLogin', array($this, null))) {
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common_redirect(common_local_url('login'), 303);
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}
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return false;
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}
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if ($this->pullRemoteProfile()) {
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$this->validateRemoteProfile();
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}
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return true;
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}
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/**
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* Handle the submission.
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*/
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protected function handle()
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{
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parent::handle();
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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$this->handlePost();
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} else {
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$this->showForm();
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}
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}
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/**
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* Show the initial form, when we haven't yet been given a valid
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* remote profile.
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*/
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function showInputForm()
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{
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$this->elementStart('form', array('method' => 'post',
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'id' => 'form_ostatus_sub',
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'class' => 'form_settings',
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'action' => $this->selfLink()));
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$this->hidden('token', common_session_token());
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$this->elementStart('fieldset', array('id' => 'settings_feeds'));
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$this->elementStart('ul', 'form_data');
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$this->elementStart('li');
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$this->input('profile',
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// TRANS: Field label for a field that takes an OStatus user address.
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_m('Subscribe to'),
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$this->profile_uri,
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// TRANS: Tooltip for field label "Subscribe to".
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_m('OStatus user\'s address, like nickname@example.com or http://example.net/nickname.'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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// TRANS: Button text.
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$this->submit('validate', _m('BUTTON','Continue'));
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$this->elementEnd('fieldset');
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$this->elementEnd('form');
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}
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/**
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* Show the preview-and-confirm form. We've got a valid remote
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* profile and are ready to poke it!
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*
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* This controls the wrapper form; actual profile display will
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* be in previewUser() or previewGroup() depending on the type.
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*/
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function showPreviewForm()
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{
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$ok = $this->preview();
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if (!$ok) {
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// @todo FIXME maybe provide a cancel button or link back?
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return;
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}
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$this->elementStart('div', 'entity_actions');
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$this->elementStart('ul');
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$this->elementStart('li', 'entity_subscribe');
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$this->elementStart('form', array('method' => 'post',
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'id' => 'form_ostatus_sub',
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'class' => 'form_remote_authorize',
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'action' =>
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$this->selfLink()));
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$this->elementStart('fieldset');
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$this->hidden('token', common_session_token());
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$this->hidden('profile', $this->profile_uri);
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if ($this->oprofile->isGroup()) {
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// TRANS: Button text.
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$this->submit('submit', _m('Join'), 'submit', null,
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// TRANS: Tooltip for button "Join".
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_m('BUTTON','Join this group'));
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} else {
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// TRANS: Button text.
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$this->submit('submit', _m('BUTTON','Confirm'), 'submit', null,
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// TRANS: Tooltip for button "Confirm".
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_m('Subscribe to this user'));
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}
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$this->elementEnd('fieldset');
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$this->elementEnd('form');
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$this->elementEnd('li');
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$this->elementEnd('ul');
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$this->elementEnd('div');
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}
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/**
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* Show a preview for a remote user's profile
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* @return boolean true if we're ok to try subscribing
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*/
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function preview()
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{
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// Throws NoProfileException on localProfile when remote user's Profile not found
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$profile = $this->oprofile->localProfile();
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if ($this->scoped->isSubscribed($profile)) {
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$this->element('div', array('class' => 'error'),
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// TRANS: Extra paragraph in remote profile view when already subscribed.
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_m('You are already subscribed to this user.'));
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$ok = false;
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} else {
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$ok = true;
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}
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$avatarUrl = $profile->avatarUrl(AVATAR_PROFILE_SIZE);
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$this->showEntity($profile,
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$profile->profileurl,
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$avatarUrl,
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$profile->bio);
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return $ok;
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}
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function showEntity($entity, $profile, $avatar, $note)
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{
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$nickname = $entity->nickname;
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$fullname = $entity->fullname;
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$homepage = $entity->homepage;
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$location = $entity->location;
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$this->elementStart('div', 'entity_profile vcard');
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$this->element('img', array('src' => $avatar,
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'class' => 'photo avatar entity_depiction',
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'width' => AVATAR_PROFILE_SIZE,
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'height' => AVATAR_PROFILE_SIZE,
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'alt' => $nickname));
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$hasFN = ($fullname !== '') ? 'nickname' : 'fn nickname entity_nickname';
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$this->elementStart('a', array('href' => $profile,
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'class' => 'url '.$hasFN));
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$this->text($nickname);
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$this->elementEnd('a');
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if (!is_null($fullname)) {
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$this->elementStart('div', 'fn entity_fn');
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$this->text($fullname);
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$this->elementEnd('div');
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}
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if (!is_null($location)) {
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$this->elementStart('div', 'label entity_location');
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$this->text($location);
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$this->elementEnd('div');
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}
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if (!is_null($homepage)) {
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$this->elementStart('a', array('href' => $homepage,
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'class' => 'url entity_url'));
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$this->text($homepage);
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$this->elementEnd('a');
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}
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if (!is_null($note)) {
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$this->elementStart('div', 'note entity_note');
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$this->text($note);
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$this->elementEnd('div');
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}
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$this->elementEnd('div');
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}
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/**
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* Redirect on successful remote user subscription
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*/
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function success()
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{
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$url = common_local_url('subscriptions', array('nickname' => $this->scoped->nickname));
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common_redirect($url, 303);
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}
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/**
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* Pull data for a remote profile and check if it's valid.
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* Fills out error UI string in $this->error
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* Fills out $this->oprofile on success.
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*
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* @return boolean
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*/
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function pullRemoteProfile()
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{
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$validate = new Validate();
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try {
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$this->profile_uri = Discovery::normalize($this->trimmed('profile'));
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} catch (Exception $e) {
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$this->profile_uri = null;
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}
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try {
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if (Discovery::isAcct($this->profile_uri) && $validate->email(mb_substr($this->profile_uri, 5))) {
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$this->oprofile = Ostatus_profile::ensureWebfinger($this->profile_uri);
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} else if ($validate->uri($this->profile_uri)) {
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$this->oprofile = Ostatus_profile::ensureProfileURL($this->profile_uri);
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} else {
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// TRANS: Error message in OStatus plugin. Do not translate the domain names example.com
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// TRANS: and example.net, as these are official standard domain names for use in examples.
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$this->error = _m("Sorry, we could not reach that address. Please make sure that the OStatus address is like nickname@example.com or http://example.net/nickname.");
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common_debug('Invalid address format.', __FILE__);
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return false;
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}
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return true;
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} catch (FeedSubBadURLException $e) {
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// TRANS: Error message in OStatus plugin. Do not translate the domain names example.com
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// TRANS: and example.net, as these are official standard domain names for use in examples.
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$this->error = _m('Sorry, we could not reach that address. Please make sure that the OStatus address is like nickname@example.com or http://example.net/nickname.');
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common_debug('Invalid URL or could not reach server.', __FILE__);
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} catch (FeedSubBadResponseException $e) {
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// TRANS: Error text.
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$this->error = _m('Sorry, we could not reach that feed. Please try that OStatus address again later.');
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common_debug('Cannot read feed; server returned error.', __FILE__);
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} catch (FeedSubEmptyException $e) {
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// TRANS: Error text.
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$this->error = _m('Sorry, we could not reach that feed. Please try that OStatus address again later.');
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common_debug('Cannot read feed; server returned an empty page.', __FILE__);
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} catch (FeedSubBadHTMLException $e) {
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// TRANS: Error text.
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$this->error = _m('Sorry, we could not reach that feed. Please try that OStatus address again later.');
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common_debug('Bad HTML, could not find feed link.', __FILE__);
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} catch (FeedSubNoFeedException $e) {
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// TRANS: Error text.
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$this->error = _m("Sorry, we could not reach that feed. Please try that OStatus address again later.");
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common_debug('Could not find a feed linked from this URL.', __FILE__);
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} catch (FeedSubUnrecognizedTypeException $e) {
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// TRANS: Error text.
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$this->error = _m("Sorry, we could not reach that feed. Please try that OStatus address again later.");
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common_debug('Not a recognized feed type.', __FILE__);
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} catch (FeedSubNoHubException $e) {
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// TRANS: Error text.
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$this->error = _m("Sorry, that feed is not Pubsubhubub enabled.");
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common_debug('No hub found.', __FILE__);
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} catch (Exception $e) {
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// Any new ones we forgot about
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// TRANS: Error message in OStatus plugin. Do not translate the domain names example.com
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// TRANS: and example.net, as these are official standard domain names for use in examples.
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$this->error = _m("Sorry, we could not reach that address. Please make sure that the OStatus address is like nickname@example.com or http://example.net/nickname.");
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common_debug(sprintf('Bad feed URL: %s %s', get_class($e), $e->getMessage()), __FILE__);
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}
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return false;
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}
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function validateRemoteProfile()
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{
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// Send us to the respective subscription form for conf
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if ($this->oprofile->isGroup()) {
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$target = common_local_url('ostatusgroup', array(), array('profile' => $this->profile_uri));
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common_redirect($target, 303);
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} else if ($this->oprofile->isPeopletag()) {
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$target = common_local_url('ostatuspeopletag', array(), array('profile' => $this->profile_uri));
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common_redirect($target, 303);
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}
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}
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/**
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* Attempt to finalize subscription.
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* validateFeed must have been run first.
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*
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* Calls showForm on failure or success on success.
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*/
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function saveFeed()
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{
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// And subscribe the current user to the local profile
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$local = $this->oprofile->localProfile();
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if ($this->scoped->isSubscribed($local)) {
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// TRANS: OStatus remote subscription dialog error.
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$this->showForm(_m('Already subscribed!'));
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} elseif (Subscription::start($this->scoped, $local)) {
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$this->success();
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} else {
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// TRANS: OStatus remote subscription dialog error.
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$this->showForm(_m('Remote subscription failed!'));
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}
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}
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/**
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* Handle posts to this form
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*
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* @return void
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*/
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function handlePost()
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{
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// CSRF protection
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$token = $this->trimmed('token');
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if (!$token || $token != common_session_token()) {
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// TRANS: Client error displayed when the session token does not match or is not given.
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$this->showForm(_m('There was a problem with your session token. '.
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'Try again, please.'));
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return;
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}
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if ($this->oprofile) {
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if ($this->arg('submit')) {
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$this->saveFeed();
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return;
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}
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}
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$this->showForm();
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}
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/**
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* Show the appropriate form based on our input state.
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*/
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function showForm($err=null)
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{
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if ($err) {
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$this->error = $err;
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}
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if ($this->boolean('ajax')) {
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$this->startHTML('text/xml;charset=utf-8');
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$this->elementStart('head');
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// TRANS: Form title.
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$this->element('title', null, _m('Subscribe to user'));
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$this->elementEnd('head');
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$this->elementStart('body');
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$this->showContent();
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$this->elementEnd('body');
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$this->endHTML();
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} else {
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$this->showPage();
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}
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}
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/**
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* Title of the page
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*
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* @return string Title of the page
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*/
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function title()
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{
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// TRANS: Page title for OStatus remote subscription form.
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return _m('Confirm');
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}
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/**
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* Instructions for use
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*
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* @return instructions for use
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*/
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function getInstructions()
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{
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// TRANS: Instructions.
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return _m('You can subscribe to users from other supported sites. Paste their address or profile URI below:');
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}
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function showPageNotice()
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{
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if (!empty($this->error)) {
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$this->element('p', 'error', $this->error);
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}
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}
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/**
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* Content area of the page
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*
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* Shows a form for associating a remote OStatus account with this
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* StatusNet account.
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*
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* @return void
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*/
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function showContent()
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{
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if ($this->oprofile) {
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$this->showPreviewForm();
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} else {
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$this->showInputForm();
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}
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}
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function showScripts()
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{
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parent::showScripts();
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$this->autofocus('feedurl');
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}
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function selfLink()
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{
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return common_local_url('ostatussub');
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}
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/**
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* Disable the send-notice form at the top of the page.
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* This is really just a hack for the broken CSS in the Cloudy theme,
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* I think; copying from other non-notice-navigation pages that do this
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* as well. There will be plenty of others also broken.
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*
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* @fixme fix the cloudy theme
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* @fixme do this in a more general way
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*/
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function showNoticeForm() {
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// nop
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}
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}
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