]> git.mxchange.org Git - quix0rs-gnu-social.git/blobdiff - classes/Subscription.php
Subscription "get by" functions now don't use ArrayWrappers
[quix0rs-gnu-social.git] / classes / Subscription.php
index e9ad2a5a208e727471db1d59b38b708f334b9998..a9ffe8913e97123072b19c08870e6cd10b8b30c9 100644 (file)
@@ -24,8 +24,11 @@ if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
  */
 require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
 
-class Subscription extends Memcached_DataObject
+class Subscription extends Managed_DataObject
 {
+    const CACHE_WINDOW = 201;
+    const FORCE = true;
+
     ###START_AUTOCODE
     /* the code below is auto generated do not remove the above tag */
 
@@ -36,19 +39,34 @@ class Subscription extends Memcached_DataObject
     public $sms;                             // tinyint(1)   default_1
     public $token;                           // varchar(255)
     public $secret;                          // varchar(255)
+    public $uri;                             // 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)
+    public static function schemaDef()
     {
-        return Memcached_DataObject::pkeyGet('Subscription', $kv);
+        return array(
+            'fields' => array(
+                'subscriber' => array('type' => 'int', 'not null' => true, 'description' => 'profile listening'),
+                'subscribed' => array('type' => 'int', 'not null' => true, 'description' => 'profile being listened to'),
+                'jabber' => array('type' => 'int', 'size' => 'tiny', 'default' => 1, 'description' => 'deliver jabber messages'),
+                'sms' => array('type' => 'int', 'size' => 'tiny', 'default' => 1, 'description' => 'deliver sms messages'),
+                'token' => array('type' => 'varchar', 'length' => 255, 'description' => 'authorization token'),
+                'secret' => array('type' => 'varchar', 'length' => 255, 'description' => 'token secret'),
+                'uri' => array('type' => 'varchar', 'length' => 255, 'description' => 'universally unique identifier'),
+                'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
+                'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
+            ),
+            'primary key' => array('subscriber', 'subscribed'),
+            'unique keys' => array(
+                'subscription_uri_key' => array('uri'),
+            ),
+            'indexes' => array(
+                'subscription_subscriber_idx' => array('subscriber', 'created'),
+                'subscription_subscribed_idx' => array('subscribed', 'created'),
+                'subscription_token_idx' => array('token'),
+            ),
+        );
     }
 
     /**
@@ -56,20 +74,13 @@ class Subscription extends Memcached_DataObject
      *
      * @param Profile $subscriber party to receive new notices
      * @param Profile $other      party sending notices; publisher
+     * @param bool    $force      pass Subscription::FORCE to override local subscription approval
      *
-     * @return Subscription new subscription
+     * @return mixed Subscription or Subscription_queue: new subscription info
      */
 
-    static function start($subscriber, $other)
+    static function start(Profile $subscriber, Profile $other, $force=false)
     {
-        // @fixme should we enforce this as profiles in callers instead?
-        if ($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.'));
@@ -86,32 +97,39 @@ class Subscription extends Memcached_DataObject
         }
 
         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()}");
+            $otherUser = User::getKV('id', $other->id);
+            if ($otherUser && $otherUser->subscribe_policy == User::SUBSCRIBE_POLICY_MODERATE && !$force) {
+                $sub = Subscription_queue::saveNew($subscriber, $other);
+                $sub->notify();
+            } else {
+                $sub = self::saveNew($subscriber->id, $other->id);
+                $sub->notify();
+
+                self::blow('user:notices_with_friends:%d', $subscriber->id);
+
+                self::blow('subscription:by-subscriber:'.$subscriber->id);
+                self::blow('subscription:by-subscribed:'.$other->id);
+
+                $subscriber->blowSubscriptionCount();
+                $other->blowSubscriberCount();
+
+                if (!empty($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;
+        return $sub;
     }
 
     /**
@@ -127,6 +145,9 @@ class Subscription extends Memcached_DataObject
         $sub->jabber     = 1;
         $sub->sms        = 1;
         $sub->created    = common_sql_now();
+        $sub->uri        = self::newURI($sub->subscriber,
+                                        $sub->subscribed,
+                                        $sub->created);
 
         $result = $sub->insert();
 
@@ -141,20 +162,20 @@ class Subscription extends Memcached_DataObject
 
     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
+        // 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);
+        $subscribedUser = User::getKV('id', $this->subscribed);
 
         if (!empty($subscribedUser)) {
 
-            $subscriber = Profile::staticGet('id', $this->subscriber);
+            $subscriber = Profile::getKV('id', $this->subscriber);
 
             mail_subscribe_notify_profile($subscribedUser, $subscriber);
         }
@@ -164,7 +185,7 @@ class Subscription extends Memcached_DataObject
      * Cancel a subscription
      *
      */
-    function cancel($subscriber, $other)
+    static function cancel(Profile $subscriber, Profile $other)
     {
         if (!self::exists($subscriber, $other)) {
             // TRANS: Exception thrown when trying to unsibscribe without a subscription.
@@ -187,29 +208,6 @@ class Subscription extends Memcached_DataObject
 
             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) {
@@ -220,6 +218,9 @@ class Subscription extends Memcached_DataObject
 
             self::blow('user:notices_with_friends:%d', $subscriber->id);
 
+            self::blow('subscription:by-subscriber:'.$subscriber->id);
+            self::blow('subscription:by-subscribed:'.$other->id);
+
             $subscriber->blowSubscriptionCount();
             $other->blowSubscriberCount();
 
@@ -229,7 +230,7 @@ class Subscription extends Memcached_DataObject
         return;
     }
 
-    function exists($subscriber, $other)
+    static function exists(Profile $subscriber, Profile $other)
     {
         $sub = Subscription::pkeyGet(array('subscriber' => $subscriber->id,
                                            'subscribed' => $other->id));
@@ -238,21 +239,28 @@ class Subscription extends Memcached_DataObject
 
     function asActivity()
     {
-        $subscriber = Profile::staticGet('id', $this->subscriber);
-        $subscribed = Profile::staticGet('id', $this->subscribed);
+        $subscriber = Profile::getKV('id', $this->subscriber);
+        $subscribed = Profile::getKV('id', $this->subscribed);
+
+        if (empty($subscriber)) {
+            throw new Exception(sprintf(_('No profile for the subscriber: %d'), $this->subscriber));
+        }
+
+        if (empty($subscribed)) {
+            throw new Exception(sprintf(_('No profile for the subscribed: %d'), $this->subscribed));
+        }
 
         $act = new Activity();
 
         $act->verb = ActivityVerb::FOLLOW;
 
-        $act->id   = TagURI::mint('follow:%d:%d:%s',
-                                  $subscriber->id,
-                                  $subscribed->id,
-                                  common_date_iso8601($this->created));
+        // XXX: rationalize this with the URL
+
+        $act->id   = $this->getURI();
 
         $act->time    = strtotime($this->created);
-        // TRANS: Activity tile when subscribing to another person.
-        $act->title   = _("Follow");
+        // TRANS: Activity title when subscribing to another person.
+        $act->title = _m('TITLE','Follow');
         // TRANS: Notification given when one person starts following another.
         // TRANS: %1$s is the subscriber, %2$s is the subscribed.
         $act->content = sprintf(_('%1$s is now following %2$s.'),
@@ -262,6 +270,153 @@ class Subscription extends Memcached_DataObject
         $act->actor     = ActivityObject::fromProfile($subscriber);
         $act->objects[] = ActivityObject::fromProfile($subscribed);
 
+        $url = common_local_url('AtomPubShowSubscription',
+                                array('subscriber' => $subscriber->id,
+                                      'subscribed' => $subscribed->id));
+
+        $act->selfLink = $url;
+        $act->editLink = $url;
+
         return $act;
     }
+
+    /**
+     * Stream of subscriptions with the same subscriber
+     *
+     * Useful for showing pages that list subscriptions in reverse
+     * chronological order. Has offset & limit to make paging
+     * easy.
+     *
+     * @param integer $profile_id   ID of the subscriber profile
+     * @param integer $offset       Offset from latest
+     * @param integer $limit        Maximum number to fetch
+     *
+     * @return Subscription stream of subscriptions; use fetch() to iterate
+     */
+    public static function bySubscriber($profile_id, $offset = 0, $limit = PROFILES_PER_PAGE)
+    {
+        // "by subscriber" means it is the list of subscribed users we want
+        $ids = self::getSubscribedIDs($profile_id, $offset, $limit);
+        return Subscription::listFind('subscribed', $ids);
+    }
+
+    /**
+     * Stream of subscriptions with the same subscriber
+     *
+     * Useful for showing pages that list subscriptions in reverse
+     * chronological order. Has offset & limit to make paging
+     * easy.
+     *
+     * @param integer $profile_id   ID of the subscribed profile
+     * @param integer $offset       Offset from latest
+     * @param integer $limit        Maximum number to fetch
+     *
+     * @return Subscription stream of subscriptions; use fetch() to iterate
+     */
+    public static function bySubscribed($profile_id, $offset = 0, $limit = PROFILES_PER_PAGE)
+    {
+        // "by subscribed" means it is the list of subscribers we want
+        $ids = self::getSubscriberIDs($profile_id, $offset, $limit);
+        return Subscription::listFind('subscriber', $ids);
+    }
+
+
+    // The following are helper functions to the subscription lists,
+    // notably the public ones get used in places such as Profile
+    public static function getSubscribedIDs($profile_id, $offset, $limit) {
+        return self::getSubscriptionIDs('subscribed', $profile_id, $offset, $limit);
+    }
+
+    public static function getSubscriberIDs($profile_id, $offset, $limit) {
+        return self::getSubscriptionIDs('subscriber', $profile_id, $offset, $limit);
+    }
+
+    private static function getSubscriptionIDs($get_type, $profile_id, $offset, $limit)
+    {
+        switch ($get_type) {
+        case 'subscribed':
+            $by_type  = 'subscriber';
+            break;
+        case 'subscriber':
+            $by_type  = 'subscribed';
+            break;
+        default:
+            throw new Exception('Bad type argument to getSubscriptionIDs');
+        }
+
+        $cacheKey = 'subscription:by-'.$by_type.':'.$profile_id;
+
+        $queryoffset = $offset;
+        $querylimit = $limit;
+
+        if ($offset + $limit <= self::CACHE_WINDOW) {
+            // Oh, it seems it should be cached
+            $ids = self::cacheGet($cacheKey);
+            if (is_array($ids)) {
+                return array_slice($ids, $offset, $limit);
+            }
+            // Being here indicates we didn't find anything cached
+            // so we'll have to fill it up simultaneously
+            $queryoffset = 0;
+            $querylimit  = self::CACHE_WINDOW;
+        }
+
+        $sub = new Subscription();
+        $sub->$by_type = $profile_id;
+        $sub->selectAdd($get_type);
+        $sub->whereAdd("{$get_type} != {$profile_id}");
+        $sub->orderBy('created DESC');
+        $sub->limit($queryoffset, $querylimit);
+
+        if (!$sub->find()) {
+            return array();
+        }
+
+        $ids = $sub->fetchAll($get_type);
+
+        // If we're simultaneously filling up cache, remember to slice
+        if ($offset === 0 && $querylimit === self::CACHE_WINDOW) {
+            self::cacheSet($cacheKey, $ids);
+            return array_slice($ids, $offset, $limit);
+        }
+
+        return $ids;
+    }
+
+    /**
+     * Flush cached subscriptions when subscription is updated
+     *
+     * Because we cache subscriptions, it's useful to flush them
+     * here.
+     *
+     * @param mixed $orig Original version of object
+     *
+     * @return boolean success flag.
+     */
+    function update($orig=null)
+    {
+        $result = parent::update($orig);
+
+        self::blow('subscription:by-subscriber:'.$this->subscriber);
+        self::blow('subscription:by-subscribed:'.$this->subscribed);
+
+        return $result;
+    }
+
+    function getURI()
+    {
+        if (!empty($this->uri)) {
+            return $this->uri;
+        } else {
+            return self::newURI($this->subscriber, $this->subscribed, $this->created);
+        }
+    }
+
+    static function newURI($subscriber_id, $subscribed_id, $created)
+    {
+        return TagURI::mint('follow:%d:%d:%s',
+                            $subscriber_id,
+                            $subscribed_id,
+                            common_date_iso8601($created));
+    }
 }