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<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 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/>.
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
/**
* Table Definition for subscription
*/
require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
class Subscription extends Memcached_DataObject
{
###START_AUTOCODE
/* the code below is auto generated do not remove the above tag */
public $__table = 'subscription'; // table name
public $subscriber; // int(4) primary_key not_null
public $subscribed; // int(4) primary_key not_null
public $jabber; // tinyint(1) default_1
public $sms; // tinyint(1) default_1
public $token; // varchar(255)
public $secret; // varchar(255)
public $created; // datetime() not_null
public $modified; // timestamp() not_null default_CURRENT_TIMESTAMP
/* Static get */
function staticGet($k,$v=null)
{ return Memcached_DataObject::staticGet('Subscription',$k,$v); }
/* the code above is auto generated do not remove the tag below */
###END_AUTOCODE
function pkeyGet($kv)
{
return Memcached_DataObject::pkeyGet('Subscription', $kv);
}
/**
* Make a new subscription
*
* @param Profile $subscriber party to receive new notices
* @param Profile $other party sending notices; publisher
*
* @return Subscription new subscription
*/
static function start($subscriber, $other)
{
// @fixme should we enforce this as profiles in callers instead?
if ($subscriber instanceof User) {
$subscriber = $subscriber->getProfile();
}
if ($other instanceof User) {
$other = $other->getProfile();
}
if (!$subscriber->hasRight(Right::SUBSCRIBE)) {
// TRANS: Exception thrown when trying to subscribe while being banned from subscribing.
throw new Exception(_('You have been banned from subscribing.'));
}
if (self::exists($subscriber, $other)) {
// TRANS: Exception thrown when trying to subscribe while already subscribed.
throw new Exception(_('Already subscribed!'));
}
if ($other->hasBlocked($subscriber)) {
// TRANS: Exception thrown when trying to subscribe to a user who has blocked the subscribing user.
throw new Exception(_('User has blocked you.'));
}
if (Event::handle('StartSubscribe', array($subscriber, $other))) {
$sub = self::saveNew($subscriber->id, $other->id);
$sub->notify();
self::blow('user:notices_with_friends:%d', $subscriber->id);
$subscriber->blowSubscriptionCount();
$other->blowSubscriberCount();
$otherUser = User::staticGet('id', $other->id);
if (!empty($otherUser) &&
$otherUser->autosubscribe &&
!self::exists($other, $subscriber) &&
!$subscriber->hasBlocked($other)) {
try {
self::start($other, $subscriber);
} catch (Exception $e) {
common_log(LOG_ERR, "Exception during autosubscribe of {$other->nickname} to profile {$subscriber->id}: {$e->getMessage()}");
}
}
Event::handle('EndSubscribe', array($subscriber, $other));
}
return true;
}
/**
* Low-level subscription save.
* Outside callers should use Subscription::start()
*/
protected function saveNew($subscriber_id, $other_id)
{
$sub = new Subscription();
$sub->subscriber = $subscriber_id;
$sub->subscribed = $other_id;
$sub->jabber = 1;
$sub->sms = 1;
$sub->created = common_sql_now();
$result = $sub->insert();
if (!$result) {
common_log_db_error($sub, 'INSERT', __FILE__);
// TRANS: Exception thrown when a subscription could not be stored on the server.
throw new Exception(_('Could not save subscription.'));
}
return $sub;
}
function notify()
{
# XXX: add other notifications (Jabber, SMS) here
# XXX: queue this and handle it offline
# XXX: Whatever happens, do it in Twitter-like API, too
$this->notifyEmail();
}
function notifyEmail()
{
$subscribedUser = User::staticGet('id', $this->subscribed);
if (!empty($subscribedUser)) {
$subscriber = Profile::staticGet('id', $this->subscriber);
mail_subscribe_notify_profile($subscribedUser, $subscriber);
}
}
/**
* Cancel a subscription
*
*/
function cancel($subscriber, $other)
{
if (!self::exists($subscriber, $other)) {
// TRANS: Exception thrown when trying to unsibscribe without a subscription.
throw new Exception(_('Not subscribed!'));
}
// Don't allow deleting self subs
if ($subscriber->id == $other->id) {
// TRANS: Exception thrown when trying to unsubscribe a user from themselves.
throw new Exception(_('Could not delete self-subscription.'));
}
if (Event::handle('StartUnsubscribe', array($subscriber, $other))) {
$sub = Subscription::pkeyGet(array('subscriber' => $subscriber->id,
'subscribed' => $other->id));
// note we checked for existence above
assert(!empty($sub));
// @todo: move this block to EndSubscribe handler for
// OMB plugin when it exists.
if (!empty($sub->token)) {
$token = new Token();
$token->tok = $sub->token;
if ($token->find(true)) {
$result = $token->delete();
if (!$result) {
common_log_db_error($token, 'DELETE', __FILE__);
// TRANS: Exception thrown when the OMB token for a subscription could not deleted on the server.
throw new Exception(_('Could not delete subscription OMB token.'));
}
} else {
common_log(LOG_ERR, "Couldn't find credentials with token {$token->tok}");
}
}
$result = $sub->delete();
if (!$result) {
common_log_db_error($sub, 'DELETE', __FILE__);
// TRANS: Exception thrown when a subscription could not be deleted on the server.
throw new Exception(_('Could not delete subscription.'));
}
self::blow('user:notices_with_friends:%d', $subscriber->id);
$subscriber->blowSubscriptionCount();
$other->blowSubscriberCount();
Event::handle('EndUnsubscribe', array($subscriber, $other));
}
return;
}
function exists($subscriber, $other)
{
$sub = Subscription::pkeyGet(array('subscriber' => $subscriber->id,
'subscribed' => $other->id));
return (empty($sub)) ? false : true;
}
}
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