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OStatus: do PuSH subscription setup from subscribe/join event hooks, so resubscribing directly from a profile/group list works correctly if there aren't active subscriptions at the moment.

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This commit is contained in:
Brion Vibber
2010-02-23 20:44:27 +00:00
parent c79c70ea2c
commit 90d34b26c6
4 changed files with 127 additions and 66 deletions
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158
plugins/OStatus/OStatusPlugin.php
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@@ -251,58 +251,6 @@ class OStatusPlugin extends Plugin
return true;
}
/**
* Notify remote server and garbage collect unused feeds on unsubscribe.
* @fixme send these operations to background queues
*
* @param User $user
* @param Profile $other
* @return hook return value
*/
function onEndUnsubscribe($profile, $other)
{
$user = User::staticGet('id', $profile->id);
if (empty($user)) {
return true;
}
$oprofile = Ostatus_profile::staticGet('profile_id', $other->id);
if (empty($oprofile)) {
return true;
}
// Drop the PuSH subscription if there are no other subscribers.
if ($other->subscriberCount() == 0) {
common_log(LOG_INFO, "Unsubscribing from now-unused feed $oprofile->feeduri");
$oprofile->unsubscribe();
}
$act = new Activity();
$act->verb = ActivityVerb::UNFOLLOW;
$act->id = TagURI::mint('unfollow:%d:%d:%s',
$profile->id,
$other->id,
common_date_iso8601(time()));
$act->time = time();
$act->title = _("Unfollow");
$act->content = sprintf(_("%s stopped following %s."),
$profile->getBestName(),
$other->getBestName());
$act->actor = ActivityObject::fromProfile($profile);
$act->object = ActivityObject::fromProfile($other);
$oprofile->notifyActivity($act);
return true;
}
/**
* Make sure necessary tables are filled out.
*/
@@ -366,6 +314,50 @@ class OStatusPlugin extends Plugin
}
}
/**
* When about to subscribe to a remote user, start a server-to-server
* PuSH subscription if needed. If we can't establish that, abort.
*
* @fixme If something else aborts later, we could end up with a stray
* PuSH subscription. This is relatively harmless, though.
*
* @param Profile $subscriber
* @param Profile $other
*
* @return hook return code
*
* @throws Exception
*/
function onStartSubscribe($subscriber, $other)
{
$user = User::staticGet('id', $subscriber->id);
if (empty($user)) {
return true;
}
$oprofile = Ostatus_profile::staticGet('profile_id', $other->id);
if (empty($oprofile)) {
return true;
}
if (!$oprofile->subscribe()) {
throw new Exception(_m('Could not set up remote subscription.'));
}
}
/**
* Having established a remote subscription, send a notification to the
* remote OStatus profile's endpoint.
*
* @param Profile $subscriber
* @param Profile $other
*
* @return hook return code
*
* @throws Exception
*/
function onEndSubscribe($subscriber, $other)
{
$user = User::staticGet('id', $subscriber->id);
@@ -403,6 +395,54 @@ class OStatusPlugin extends Plugin
return true;
}
/**
* Notify remote server and garbage collect unused feeds on unsubscribe.
* @fixme send these operations to background queues
*
* @param User $user
* @param Profile $other
* @return hook return value
*/
function onEndUnsubscribe($profile, $other)
{
$user = User::staticGet('id', $profile->id);
if (empty($user)) {
return true;
}
$oprofile = Ostatus_profile::staticGet('profile_id', $other->id);
if (empty($oprofile)) {
return true;
}
// Drop the PuSH subscription if there are no other subscribers.
$oprofile->garbageCollect();
$act = new Activity();
$act->verb = ActivityVerb::UNFOLLOW;
$act->id = TagURI::mint('unfollow:%d:%d:%s',
$profile->id,
$other->id,
common_date_iso8601(time()));
$act->time = time();
$act->title = _("Unfollow");
$act->content = sprintf(_("%s stopped following %s."),
$profile->getBestName(),
$other->getBestName());
$act->actor = ActivityObject::fromProfile($profile);
$act->object = ActivityObject::fromProfile($other);
$oprofile->notifyActivity($act);
return true;
}
/**
* When one of our local users tries to join a remote group,
* notify the remote server. If the notification is rejected,
@@ -418,6 +458,10 @@ class OStatusPlugin extends Plugin
{
$oprofile = Ostatus_profile::staticGet('group_id', $group->id);
if ($oprofile) {
if (!$oprofile->subscribe()) {
throw new Exception(_m('Could not set up remote group membership.'));
}
$member = Profile::staticGet($user->id);
$act = new Activity();
@@ -439,7 +483,8 @@ class OStatusPlugin extends Plugin
if ($oprofile->notifyActivity($act)) {
return true;
} else {
throw new ServerException(_m("Failed joining remote group."));
$oprofile->garbageCollect();
throw new Exception(_m("Failed joining remote group."));
}
}
}
@@ -464,12 +509,7 @@ class OStatusPlugin extends Plugin
$oprofile = Ostatus_profile::staticGet('group_id', $group->id);
if ($oprofile) {
// Drop the PuSH subscription if there are no other subscribers.
$members = $group->getMembers(0, 1);
if ($members->N == 0) {
common_log(LOG_INFO, "Unsubscribing from now-unused group feed $oprofile->feeduri");
$oprofile->unsubscribe();
}
$oprofile->garbageCollect();
$member = Profile::staticGet($user->id);