3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2008, 2009, StatusNet, Inc.
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
16 * You should have received a copy of the GNU Affero General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
22 require_once('XMPPHP/XMPP.php');
24 /* Subscribe $user to nickname $other_nickname
25 Returns true or an error message.
28 function subs_subscribe_user($user, $other_nickname)
31 $other = User::staticGet('nickname', $other_nickname);
34 return _('No such user.');
37 return subs_subscribe_to($user, $other);
40 /* Subscribe user $user to other user $other.
41 * Note: $other must be a local user, not a remote profile.
42 * Because the other way is quite a bit more complicated.
45 function subs_subscribe_to($user, $other)
47 if (!$user->hasRight(Right::SUBSCRIBE)) {
48 return _('You have been banned from subscribing.');
51 if ($user->isSubscribed($other)) {
52 return _('Already subscribed!');
55 if ($other->hasBlocked($user)) {
56 return _('User has blocked you.');
60 if (Event::handle('StartSubscribe', array($user, $other))) {
62 if (!$user->subscribeTo($other)) {
63 return _('Could not subscribe.');
67 subs_notify($other, $user);
69 $cache = common_memcache();
72 $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
75 $profile = $user->getProfile();
77 $profile->blowSubscriptionsCount();
78 $other->blowSubscribersCount();
80 if ($other->autosubscribe && !$other->isSubscribed($user) && !$user->hasBlocked($other)) {
81 if (!$other->subscribeTo($user)) {
82 return _('Could not subscribe other to you.');
84 $cache = common_memcache();
87 $cache->delete(common_cache_key('user:notices_with_friends:' . $other->id));
90 subs_notify($user, $other);
93 Event::handle('EndSubscribe', array($user, $other));
95 } catch (Exception $e) {
96 return $e->getMessage();
102 function subs_notify($listenee, $listener)
104 # XXX: add other notifications (Jabber, SMS) here
105 # XXX: queue this and handle it offline
106 # XXX: Whatever happens, do it in Twitter-like API, too
107 subs_notify_email($listenee, $listener);
110 function subs_notify_email($listenee, $listener)
112 mail_subscribe_notify($listenee, $listener);
115 /* Unsubscribe $user from nickname $other_nickname
116 Returns true or an error message.
119 function subs_unsubscribe_user($user, $other_nickname)
122 $other = User::staticGet('nickname', $other_nickname);
125 return _('No such user.');
128 return subs_unsubscribe_to($user, $other->getProfile());
131 /* Unsubscribe user $user from profile $other
132 * NB: other can be a remote user. */
134 function subs_unsubscribe_to($user, $other)
136 if (!$user->isSubscribed($other))
137 return _('Not subscribed!');
139 // Don't allow deleting self subs
141 if ($user->id == $other->id) {
142 return _('Couldn\'t delete self-subscription.');
146 if (Event::handle('StartUnsubscribe', array($user, $other))) {
148 $sub = DB_DataObject::factory('subscription');
150 $sub->subscriber = $user->id;
151 $sub->subscribed = $other->id;
155 // note we checked for existence above
158 return _('Couldn\'t delete subscription.');
160 $cache = common_memcache();
163 $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
166 $profile = $user->getProfile();
168 $profile->blowSubscriptionsCount();
169 $other->blowSubscribersCount();
171 Event::handle('EndUnsubscribe', array($user, $other));
173 } catch (Exception $e) {
174 return $e->getMessage();