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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/>.
- */
- /**
- * @package OStatusPlugin
- * @maintainer James Walker <james@status.net>
- */
- if (!defined('STATUSNET')) {
- exit(1);
- }
- class OStatusInitAction extends Action
- {
- var $nickname;
- var $tagger;
- var $peopletag;
- var $group;
- var $profile;
- var $err;
- protected function prepare(array $args=array())
- {
- parent::prepare($args);
- if (common_logged_in()) {
- // TRANS: Client error.
- $this->clientError(_m('You can use the local subscription!'));
- }
- // Local user or group the remote wants to subscribe to
- $this->nickname = $this->trimmed('nickname');
- $this->tagger = $this->trimmed('tagger');
- $this->peopletag = $this->trimmed('peopletag');
- $this->group = $this->trimmed('group');
- // Webfinger or profile URL of the remote user
- $this->profile = $this->trimmed('profile');
- return true;
- }
- protected function handle()
- {
- parent::handle();
- if ($_SERVER['REQUEST_METHOD'] == 'POST') {
- /* Use a session token for CSRF protection. */
- $token = $this->trimmed('token');
- if (!$token || $token != common_session_token()) {
- // TRANS: Client error displayed when the session token does not match or is not given.
- $this->showForm(_m('There was a problem with your session token. '.
- 'Try again, please.'));
- return;
- }
- $this->ostatusConnect();
- } else {
- $this->showForm();
- }
- }
- function showForm($err = null)
- {
- $this->err = $err;
- if ($this->boolean('ajax')) {
- $this->startHTML('text/xml;charset=utf-8');
- $this->elementStart('head');
- // TRANS: Form title.
- $this->element('title', null, _m('TITLE','Subscribe to user'));
- $this->elementEnd('head');
- $this->elementStart('body');
- $this->showContent();
- $this->elementEnd('body');
- $this->endHTML();
- } else {
- $this->showPage();
- }
- }
- function showContent()
- {
-
- if ($this->group) {
- // TRANS: Form legend. %s is a group name.
- $header = sprintf(_m('Join group %s'), $this->group);
- // TRANS: Button text to join a group.
- $submit = _m('BUTTON','Join');
- } else if ($this->peopletag && $this->tagger) {
- // TRANS: Form legend. %1$s is a list, %2$s is a lister's name.
- $header = sprintf(_m('Subscribe to list %1$s by %2$s'), $this->peopletag, $this->tagger);
- // TRANS: Button text to subscribe to a list.
- $submit = _m('BUTTON','Subscribe');
- // TRANS: Button text.
- } else {
- // TRANS: Form legend. %s is a nickname.
- $header = sprintf(_m('Subscribe to %s'), $this->nickname);
- // TRANS: Button text to subscribe to a profile.
- $submit = _m('BUTTON','Subscribe');
- }
- $this->elementStart('form', array('id' => 'form_ostatus_connect',
- 'method' => 'post',
- 'class' => 'form_settings',
- 'action' => common_local_url('ostatusinit')));
- $this->elementStart('fieldset');
- $this->element('legend', null, $header);
- $this->hidden('token', common_session_token());
- $this->elementStart('ul', 'form_data');
- $this->elementStart('li', array('id' => 'ostatus_nickname'));
- if ($this->group) {
- // TRANS: Field label.
- $this->input('group', _m('Group nickname'), $this->group,
- // TRANS: Field title.
- _m('Nickname of the group you want to join.'));
- } else {
- // TRANS: Field label.
- $this->input('nickname', _m('User nickname'), $this->nickname,
- // TRANS: Field title.
- _m('Nickname of the user you want to follow.'));
- $this->hidden('tagger', $this->tagger);
- $this->hidden('peopletag', $this->peopletag);
- }
- $this->elementEnd('li');
- $this->elementStart('li', array('id' => 'ostatus_profile'));
- // TRANS: Field label.
- $this->input('profile', _m('Profile Account'), $this->profile,
- // TRANS: Tooltip for field label "Profile Account".
- _m('Your account ID (e.g. user@example.com).'));
- $this->elementEnd('li');
- $this->elementEnd('ul');
- $this->submit('submit', $submit);
- $this->elementEnd('fieldset');
- $this->elementEnd('form');
- }
- function ostatusConnect()
- {
- $validate = new Validate();
- $opts = array('allowed_schemes' => array('http', 'https', 'acct'));
- if ($validate->uri($this->profile, $opts)) {
- $bits = parse_url($this->profile);
- if ($bits['scheme'] == 'acct') {
- $this->connectWebfinger($bits['path']);
- } else {
- $this->connectProfile($this->profile);
- }
- } elseif (strpos($this->profile, '@') !== false) {
- $this->connectWebfinger($this->profile);
- } else {
- // TRANS: Client error.
- $this->clientError(_m('Must provide a remote profile.'));
- }
- }
- function connectWebfinger($acct)
- {
- $target_profile = $this->targetProfile();
- $disco = new Discovery;
- $xrd = $disco->lookup($acct);
- $link = $xrd->get('http://ostatus.org/schema/1.0/subscribe');
- if (!is_null($link)) {
- // We found a URL - let's redirect!
- if (!empty($link->template)) {
- $url = Discovery::applyTemplate($link->template, $target_profile);
- } else {
- $url = $link->href;
- }
- common_log(LOG_INFO, "Sending remote subscriber $acct to $url");
- common_redirect($url, 303);
- }
- // TRANS: Client error.
- $this->clientError(_m('Could not confirm remote profile address.'));
- }
- function connectProfile($subscriber_profile)
- {
- $target_profile = $this->targetProfile();
- // @fixme hack hack! We should look up the remote sub URL from XRDS
- $suburl = preg_replace('!^(.*)/(.*?)$!', '$1/main/ostatussub', $subscriber_profile);
- $suburl .= '?profile=' . urlencode($target_profile);
- common_log(LOG_INFO, "Sending remote subscriber $subscriber_profile to $suburl");
- common_redirect($suburl, 303);
- }
- /**
- * Build the canonical profile URI+URL of the requested user or group
- */
- function targetProfile()
- {
- if ($this->nickname) {
- $user = User::getKV('nickname', $this->nickname);
- if ($user) {
- return common_local_url('userbyid', array('id' => $user->id));
- } else {
- // TRANS: Client error.
- $this->clientError(_m('No such user.'));
- }
- } else if ($this->group) {
- $group = Local_group::getKV('nickname', $this->group);
- if ($group instanceof Local_group) {
- return common_local_url('groupbyid', array('id' => $group->group_id));
- } else {
- // TRANS: Client error.
- $this->clientError(_m('No such group.'));
- }
- } else if ($this->peopletag && $this->tagger) {
- $user = User::getKV('nickname', $this->tagger);
- if (empty($user)) {
- // TRANS: Client error.
- $this->clientError(_m('No such user.'));
- }
- $peopletag = Profile_list::getByTaggerAndTag($user->id, $this->peopletag);
- if ($peopletag) {
- return common_local_url('profiletagbyid',
- array('tagger_id' => $user->id, 'id' => $peopletag->id));
- }
- // TRANS: Client error.
- $this->clientError(_m('No such list.'));
- } else {
- // TRANS: Client error.
- $this->clientError(_m('No local user or group nickname provided.'));
- }
- }
- function title()
- {
- // TRANS: Page title.
- return _m('OStatus Connect');
- }
- }
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