456 lines
14 KiB
PHP
456 lines
14 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, 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('STATUSNET') && !defined('LACONICA')) { 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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* previewUser() - display profile for a remote user
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* previewGroup() - display profile for a remote group
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*
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* successUser() - redirects to subscriptions page on subscribe
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* successGroup() - redirects to groups page on join
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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 $oprofile; // Ostatus_profile of remote entity, if valid
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/**
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* Show the initial form, when we haven't yet been given a valid
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* remote profile.
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*/
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function showInputForm()
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{
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$user = common_current_user();
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$profile = $user->getProfile();
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$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' =>
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common_local_url('ostatussub')));
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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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$this->input('profile',
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_m('Address or profile URL'),
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$this->profile_uri,
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_m('Enter the profile URL of a PubSubHubbub-enabled feed'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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$this->submit('validate', _m('Continue'));
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$this->elementEnd('fieldset');
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$this->elementEnd('form');
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}
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/**
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* Show the preview-and-confirm form. We've got a valid remote
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* profile and are ready to poke it!
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*
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* This controls the wrapper form; actual profile display will
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* be in previewUser() or previewGroup() depending on the type.
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*/
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function showPreviewForm()
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{
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if ($this->oprofile->isGroup()) {
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$this->previewGroup();
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} else {
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$this->previewUser();
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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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common_local_url('ostatussub')));
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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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$this->submit('submit', _m('Join'), 'submit', null,
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_m('Join this group'));
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} else {
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$this->submit('submit', _m('Subscribe'), 'submit', null,
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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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$this->elementEnd('div');
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}
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/**
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* Show a preview for a remote user's profile
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*/
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function previewUser()
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{
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$oprofile = $this->oprofile;
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$profile = $oprofile->localProfile();
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$this->showEntity($profile);
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}
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/**
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* Show a preview for a remote group's profile
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*/
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function previewGroup()
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{
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$oprofile = $this->oprofile;
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$group = $oprofile->localGroup();
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$this->showEntity($group);
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}
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function showEntity($entity)
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{
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$nickname = $entity->nickname;
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$profile = $entity->profileurl;
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$fullname = $entity->fullname;
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$homepage = $entity->homepage;
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$bio = $entity->bio;
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$location = $entity->location;
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$avatar = $entity->avatarurl;
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$this->elementStart('div', 'entity_profile vcard');
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$this->elementStart('dl', 'entity_depiction');
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$this->element('dt', null, _('Photo'));
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$this->elementStart('dd');
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if ($avatar) {
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$this->element('img', array('src' => $avatar,
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'class' => 'photo avatar',
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'width' => AVATAR_PROFILE_SIZE,
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'height' => AVATAR_PROFILE_SIZE,
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'alt' => $nickname));
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}
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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$this->elementStart('dl', 'entity_nickname');
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$this->element('dt', null, _('Nickname'));
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$this->elementStart('dd');
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$hasFN = ($fullname !== '') ? 'nickname' : 'fn nickname';
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$this->elementStart('a', array('href' => $profile,
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'class' => 'url '.$hasFN));
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$this->raw($nickname);
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$this->elementEnd('a');
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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if (!is_null($fullname)) {
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$this->elementStart('dl', 'entity_fn');
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$this->elementStart('dd');
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$this->elementStart('span', 'fn');
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$this->raw($fullname);
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$this->elementEnd('span');
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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if (!is_null($location)) {
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$this->elementStart('dl', 'entity_location');
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$this->element('dt', null, _('Location'));
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$this->elementStart('dd', 'label');
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$this->raw($location);
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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if (!is_null($homepage)) {
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$this->elementStart('dl', 'entity_url');
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$this->element('dt', null, _('URL'));
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$this->elementStart('dd');
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$this->elementStart('a', array('href' => $homepage,
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'class' => 'url'));
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$this->raw($homepage);
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$this->elementEnd('a');
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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if (!is_null($bio)) {
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$this->elementStart('dl', 'entity_note');
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$this->element('dt', null, _('Note'));
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$this->elementStart('dd', 'note');
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$this->raw($bio);
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$this->elementEnd('dd');
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$this->elementEnd('dl');
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}
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$this->elementEnd('div');
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}
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/**
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* Redirect on successful remote user subscription
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*/
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function successUser()
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{
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$cur = common_current_user();
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$url = common_local_url('subscriptions', array('nickname' => $cur->nickname));
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common_redirect($url, 303);
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}
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/**
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* Redirect on successful remote group join
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*/
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function successGroup()
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{
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$cur = common_current_user();
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$url = common_local_url('usergroups', array('nickname' => $cur->nickname));
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common_redirect($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 $this->oprofile on success.
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*
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* @return boolean
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*/
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function validateFeed()
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{
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$profile_uri = trim($this->arg('profile'));
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if ($profile_uri == '') {
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$this->showForm(_m('Empty remote profile URL!'));
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return;
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}
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$this->profile_uri = $profile_uri;
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// @fixme validate, normalize bla bla
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try {
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$oprofile = Ostatus_profile::ensureProfile($this->profile_uri);
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$this->oprofile = $oprofile;
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return true;
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} catch (FeedSubBadURLException $e) {
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$this->error = _m('Invalid URL or could not reach server.');
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} catch (FeedSubBadResponseException $e) {
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$this->error = _m('Cannot read feed; server returned error.');
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} catch (FeedSubEmptyException $e) {
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$this->error = _m('Cannot read feed; server returned an empty page.');
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} catch (FeedSubBadHTMLException $e) {
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$this->error = _m('Bad HTML, could not find feed link.');
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} catch (FeedSubNoFeedException $e) {
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$this->error = _m('Could not find a feed linked from this URL.');
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} catch (FeedSubUnrecognizedTypeException $e) {
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$this->error = _m('Not a recognized feed type.');
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} catch (FeedSubException $e) {
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// Any new ones we forgot about
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$this->error = sprintf(_m('Bad feed URL: %s %s'), get_class($e), $e->getMessage());
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}
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return false;
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}
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/**
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* Attempt to finalize subscription.
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* validateFeed must have been run first.
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*
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* Calls showForm on failure or successUser/successGroup on success.
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*/
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function saveFeed()
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{
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// And subscribe the current user to the local profile
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$user = common_current_user();
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if (!$this->oprofile->subscribe()) {
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$this->showForm(_m("Failed to set up server-to-server subscription."));
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return;
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}
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if ($this->oprofile->isGroup()) {
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$group = $this->oprofile->localGroup();
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if ($user->isMember($group)) {
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$this->showForm(_m('Already a member!'));
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} elseif (Group_member::join($this->oprofile->group_id, $user->id)) {
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$this->successGroup();
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} else {
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$this->showForm(_m('Remote group join failed!'));
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}
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} else {
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$local = $this->oprofile->localProfile();
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if ($user->isSubscribed($local)) {
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$this->showForm(_m('Already subscribed!'));
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} elseif ($this->oprofile->subscribeLocalToRemote($user)) {
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$this->successUser();
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} else {
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$this->showForm(_m('Remote subscription failed!'));
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}
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}
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}
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function prepare($args)
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{
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parent::prepare($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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$this->profile_uri = $this->arg('profile');
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return true;
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}
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/**
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* Handle the submission.
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*/
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function handle($args)
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{
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parent::handle($args);
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
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$this->handlePost();
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} else {
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if ($this->arg('profile')) {
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$this->validateFeed();
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}
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$this->showForm();
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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 || $token != common_session_token()) {
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$this->showForm(_('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 ($this->validateFeed()) {
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if ($this->arg('subscribe')) {
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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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header('Content-Type: text/xml;charset=utf-8');
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$this->xw->startDocument('1.0', 'UTF-8');
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$this->elementStart('html');
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$this->elementStart('head');
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$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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$this->elementEnd('html');
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} else {
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$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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return _m('Authorize subscription');
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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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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 ($this->error) {
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$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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}
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