diff options
Diffstat (limited to 'plugins/OStatus/actions/ostatussub.php')
| -rw-r--r-- | plugins/OStatus/actions/ostatussub.php | 497 |
1 files changed, 497 insertions, 0 deletions
diff --git a/plugins/OStatus/actions/ostatussub.php b/plugins/OStatus/actions/ostatussub.php new file mode 100644 index 000000000..aae22f868 --- /dev/null +++ b/plugins/OStatus/actions/ostatussub.php @@ -0,0 +1,497 @@ +<?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 OStatusPlugin + * @maintainer Brion Vibber <brion@status.net> + */ + +if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); } + +/** + * Key UI methods: + * + * showInputForm() - form asking for a remote profile account or URL + * We end up back here on errors + * + * showPreviewForm() - surrounding form for preview-and-confirm + * previewUser() - display profile for a remote user + * previewGroup() - display profile for a remote group + * + * successUser() - redirects to subscriptions page on subscribe + * successGroup() - redirects to groups page on join + */ +class OStatusSubAction extends Action +{ + protected $profile_uri; // provided acct: or URI of remote entity + protected $oprofile; // Ostatus_profile of remote entity, if valid + + /** + * Show the initial form, when we haven't yet been given a valid + * remote profile. + */ + function showInputForm() + { + $user = common_current_user(); + + $profile = $user->getProfile(); + + $this->elementStart('form', array('method' => 'post', + 'id' => 'form_ostatus_sub', + 'class' => 'form_settings', + 'action' => + common_local_url('ostatussub'))); + + $this->hidden('token', common_session_token()); + + $this->elementStart('fieldset', array('id' => 'settings_feeds')); + + $this->elementStart('ul', 'form_data'); + $this->elementStart('li'); + $this->input('profile', + _m('Address or profile URL'), + $this->profile_uri, + _m('Enter the profile URL of a PubSubHubbub-enabled feed')); + $this->elementEnd('li'); + $this->elementEnd('ul'); + + $this->submit('validate', _m('Continue')); + + $this->elementEnd('fieldset'); + + $this->elementEnd('form'); + } + + /** + * Show the preview-and-confirm form. We've got a valid remote + * profile and are ready to poke it! + * + * This controls the wrapper form; actual profile display will + * be in previewUser() or previewGroup() depending on the type. + */ + function showPreviewForm() + { + if ($this->oprofile->isGroup()) { + $ok = $this->previewGroup(); + } else { + $ok = $this->previewUser(); + } + if (!$ok) { + // @fixme maybe provide a cancel button or link back? + return; + } + + $this->elementStart('div', 'entity_actions'); + $this->elementStart('ul'); + $this->elementStart('li', 'entity_subscribe'); + $this->elementStart('form', array('method' => 'post', + 'id' => 'form_ostatus_sub', + 'class' => 'form_remote_authorize', + 'action' => + common_local_url('ostatussub'))); + $this->elementStart('fieldset'); + $this->hidden('token', common_session_token()); + $this->hidden('profile', $this->profile_uri); + if ($this->oprofile->isGroup()) { + $this->submit('submit', _m('Join'), 'submit', null, + _m('Join this group')); + } else { + $this->submit('submit', _m('Subscribe'), 'submit', null, + _m('Subscribe to this user')); + } + $this->elementEnd('fieldset'); + $this->elementEnd('form'); + $this->elementEnd('li'); + $this->elementEnd('ul'); + $this->elementEnd('div'); + } + + /** + * Show a preview for a remote user's profile + * @return boolean true if we're ok to try subscribing + */ + function previewUser() + { + $oprofile = $this->oprofile; + $profile = $oprofile->localProfile(); + + $cur = common_current_user(); + if ($cur->isSubscribed($profile)) { + $this->element('div', array('class' => 'error'), + _m("You are already subscribed to this user.")); + $ok = false; + } else { + $ok = true; + } + + $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE); + $avatarUrl = $avatar ? $avatar->displayUrl() : false; + + $this->showEntity($profile, + $profile->profileurl, + $avatarUrl, + $profile->bio); + return $ok; + } + + /** + * Show a preview for a remote group's profile + * @return boolean true if we're ok to try joining + */ + function previewGroup() + { + $oprofile = $this->oprofile; + $group = $oprofile->localGroup(); + + $cur = common_current_user(); + if ($cur->isMember($group)) { + $this->element('div', array('class' => 'error'), + _m("You are already a member of this group.")); + $ok = false; + } else { + $ok = true; + } + + $this->showEntity($group, + $group->getProfileUrl(), + $group->homepage_logo, + $group->description); + return $ok; + } + + + function showEntity($entity, $profile, $avatar, $note) + { + $nickname = $entity->nickname; + $fullname = $entity->fullname; + $homepage = $entity->homepage; + $location = $entity->location; + + if (!$avatar) { + $avatar = Avatar::defaultImage(AVATAR_PROFILE_SIZE); + } + + $this->elementStart('div', 'entity_profile vcard'); + $this->elementStart('dl', 'entity_depiction'); + $this->element('dt', null, _('Photo')); + $this->elementStart('dd'); + $this->element('img', array('src' => $avatar, + 'class' => 'photo avatar', + 'width' => AVATAR_PROFILE_SIZE, + 'height' => AVATAR_PROFILE_SIZE, + 'alt' => $nickname)); + $this->elementEnd('dd'); + $this->elementEnd('dl'); + + $this->elementStart('dl', 'entity_nickname'); + $this->element('dt', null, _('Nickname')); + $this->elementStart('dd'); + $hasFN = ($fullname !== '') ? 'nickname' : 'fn nickname'; + $this->elementStart('a', array('href' => $profile, + 'class' => 'url '.$hasFN)); + $this->raw($nickname); + $this->elementEnd('a'); + $this->elementEnd('dd'); + $this->elementEnd('dl'); + + if (!is_null($fullname)) { + $this->elementStart('dl', 'entity_fn'); + $this->elementStart('dd'); + $this->elementStart('span', 'fn'); + $this->raw($fullname); + $this->elementEnd('span'); + $this->elementEnd('dd'); + $this->elementEnd('dl'); + } + if (!is_null($location)) { + $this->elementStart('dl', 'entity_location'); + $this->element('dt', null, _('Location')); + $this->elementStart('dd', 'label'); + $this->raw($location); + $this->elementEnd('dd'); + $this->elementEnd('dl'); + } + + if (!is_null($homepage)) { + $this->elementStart('dl', 'entity_url'); + $this->element('dt', null, _('URL')); + $this->elementStart('dd'); + $this->elementStart('a', array('href' => $homepage, + 'class' => 'url')); + $this->raw($homepage); + $this->elementEnd('a'); + $this->elementEnd('dd'); + $this->elementEnd('dl'); + } + + if (!is_null($note)) { + $this->elementStart('dl', 'entity_note'); + $this->element('dt', null, _('Note')); + $this->elementStart('dd', 'note'); + $this->raw($note); + $this->elementEnd('dd'); + $this->elementEnd('dl'); + } + $this->elementEnd('div'); + } + + /** + * Redirect on successful remote user subscription + */ + function successUser() + { + $cur = common_current_user(); + $url = common_local_url('subscriptions', array('nickname' => $cur->nickname)); + common_redirect($url, 303); + } + + /** + * Redirect on successful remote group join + */ + function successGroup() + { + $cur = common_current_user(); + $url = common_local_url('usergroups', array('nickname' => $cur->nickname)); + common_redirect($url, 303); + } + + /** + * Pull data for a remote profile and check if it's valid. + * Fills out error UI string in $this->error + * Fills out $this->oprofile on success. + * + * @return boolean + */ + function validateFeed() + { + $profile_uri = trim($this->arg('profile')); + + if ($profile_uri == '') { + $this->showForm(_m('Empty remote profile URL!')); + return; + } + $this->profile_uri = $profile_uri; + + try { + if (Validate::email($this->profile_uri)) { + $this->oprofile = Ostatus_profile::ensureWebfinger($this->profile_uri); + } else if (Validate::uri($this->profile_uri)) { + $this->oprofile = Ostatus_profile::ensureProfile($this->profile_uri); + } else { + $this->error = _m("Invalid address format."); + return false; + } + return true; + } catch (FeedSubBadURLException $e) { + $this->error = _m('Invalid URL or could not reach server.'); + } catch (FeedSubBadResponseException $e) { + $this->error = _m('Cannot read feed; server returned error.'); + } catch (FeedSubEmptyException $e) { + $this->error = _m('Cannot read feed; server returned an empty page.'); + } catch (FeedSubBadHTMLException $e) { + $this->error = _m('Bad HTML, could not find feed link.'); + } catch (FeedSubNoFeedException $e) { + $this->error = _m('Could not find a feed linked from this URL.'); + } catch (FeedSubUnrecognizedTypeException $e) { + $this->error = _m('Not a recognized feed type.'); + } catch (FeedSubException $e) { + // Any new ones we forgot about + $this->error = sprintf(_m('Bad feed URL: %s %s'), get_class($e), $e->getMessage()); + } + + return false; + } + + /** + * Attempt to finalize subscription. + * validateFeed must have been run first. + * + * Calls showForm on failure or successUser/successGroup on success. + */ + function saveFeed() + { + // And subscribe the current user to the local profile + $user = common_current_user(); + + if ($this->oprofile->isGroup()) { + $group = $this->oprofile->localGroup(); + if ($user->isMember($group)) { + $this->showForm(_m('Already a member!')); + return; + } + if (Event::handle('StartJoinGroup', array($group, $user))) { + $ok = Group_member::join($this->oprofile->group_id, $user->id); + if ($ok) { + Event::handle('EndJoinGroup', array($group, $user)); + $this->successGroup(); + } else { + $this->showForm(_m('Remote group join failed!')); + } + } else { + $this->showForm(_m('Remote group join aborted!')); + } + } else { + $local = $this->oprofile->localProfile(); + if ($user->isSubscribed($local)) { + $this->showForm(_m('Already subscribed!')); + } elseif ($this->oprofile->subscribeLocalToRemote($user)) { + $this->successUser(); + } else { + $this->showForm(_m('Remote subscription failed!')); + } + } + } + + function prepare($args) + { + parent::prepare($args); + + if (!common_logged_in()) { + // XXX: selfURL() didn't work. :< + common_set_returnto($_SERVER['REQUEST_URI']); + if (Event::handle('RedirectToLogin', array($this, null))) { + common_redirect(common_local_url('login'), 303); + } + return false; + } + + $this->profile_uri = $this->arg('profile'); + + return true; + } + + /** + * Handle the submission. + */ + function handle($args) + { + parent::handle($args); + if ($_SERVER['REQUEST_METHOD'] == 'POST') { + $this->handlePost(); + } else { + if ($this->arg('profile')) { + $this->validateFeed(); + } + $this->showForm(); + } + } + + + /** + * Handle posts to this form + * + * @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->validateFeed()) { + if ($this->arg('submit')) { + $this->saveFeed(); + return; + } + } + $this->showForm(); + } + + /** + * Show the appropriate form based on our input state. + */ + function showForm($err=null) + { + if ($err) { + $this->error = $err; + } + if ($this->boolean('ajax')) { + header('Content-Type: text/xml;charset=utf-8'); + $this->xw->startDocument('1.0', 'UTF-8'); + $this->elementStart('html'); + $this->elementStart('head'); + $this->element('title', null, _m('Subscribe to user')); + $this->elementEnd('head'); + $this->elementStart('body'); + $this->showContent(); + $this->elementEnd('body'); + $this->elementEnd('html'); + } else { + $this->showPage(); + } + } + + /** + * Title of the page + * + * @return string Title of the page + */ + + function title() + { + return _m('Authorize subscription'); + } + + /** + * Instructions for use + * + * @return instructions for use + */ + + function getInstructions() + { + return _m('You can subscribe to users from other supported sites. Paste their address or profile URI below:'); + } + + function showPageNotice() + { + if (!empty($this->error)) { + $this->element('p', 'error', $this->error); + } + } + + /** + * Content area of the page + * + * Shows a form for associating a remote OStatus account with this + * StatusNet account. + * + * @return void + */ + + function showContent() + { + if ($this->oprofile) { + $this->showPreviewForm(); + } else { + $this->showInputForm(); + } + } + + function showScripts() + { + parent::showScripts(); + $this->autofocus('feedurl'); + } +} |