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OStatus/FeedSub: tweaked PuSH feed garbage collection so other plugins can declare usage of a low-level feed or an OStatus profile besides profile subscriptions & group memberships.

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SubMirror: redid add-mirror frontend to accept a feed URL, then pass that on to OStatus, instead of pulling from your subscriptions.
Profile: tweaked subscriberCount() so it doesn't subtract 1 for foreign profiles who aren't subscribed to themselves; instead excludes the self-subscription in the count query.
Memcached_DataObject: tweak to avoid extra error spew in the DB error raising

Work in progress: tweaking feedsub garbage collection so we can count other uses
This commit is contained in:
Brion Vibber
2010-08-06 10:56:18 -07:00
parent ebd2fc2f7c
commit 7e55fc0044
10 changed files with 125 additions and 149 deletions
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45
plugins/OStatus/classes/Ostatus_profile.php
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@@ -215,22 +215,13 @@ class Ostatus_profile extends Memcached_DataObject
}
/**
* Send a PuSH unsubscription request to the hub for this feed.
* The hub will later send us a confirmation POST to /main/push/callback.
* Check if this remote profile has any active local subscriptions, and
* if not drop the PuSH subscription feed.
*
* @return bool true on success, false on failure
* @throws ServerException if feed state is not valid
*/
public function unsubscribe() {
$feedsub = FeedSub::staticGet('uri', $this->feeduri);
if (!$feedsub || $feedsub->sub_state == '' || $feedsub->sub_state == 'inactive') {
// No active PuSH subscription, we can just leave it be.
return true;
} else {
// PuSH subscription is either active or in an indeterminate state.
// Send an unsubscribe.
return $feedsub->unsubscribe();
}
$this->garbageCollect();
}
/**
@@ -240,6 +231,21 @@ class Ostatus_profile extends Memcached_DataObject
* @return boolean
*/
public function garbageCollect()
{
$feedsub = FeedSub::staticGet('uri', $this->feeduri);
return $feedsub->garbageCollect();
}
/**
* Check if this remote profile has any active local subscriptions, so the
* PuSH subscription layer can decide if it can drop the feed.
*
* This gets called via the FeedSubSubscriberCount event when running
* FeedSub::garbageCollect().
*
* @return int
*/
public function subscriberCount()
{
if ($this->isGroup()) {
$members = $this->localGroup()->getMembers(0, 1);
@@ -247,13 +253,14 @@ class Ostatus_profile extends Memcached_DataObject
} else {
$count = $this->localProfile()->subscriberCount();
}
if ($count == 0) {
common_log(LOG_INFO, "Unsubscribing from now-unused remote feed $this->feeduri");
$this->unsubscribe();
return true;
} else {
return false;
}
common_log(LOG_INFO, __METHOD__ . " SUB COUNT BEFORE: $count");
// Other plugins may be piggybacking on OStatus without having
// an active group or user-to-user subscription we know about.
Event::handle('Ostatus_profileSubscriberCount', array($this, &$count));
common_log(LOG_INFO, __METHOD__ . " SUB COUNT AFTER: $count");
return $count;
}
/**