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ensureHub on 422 status code (Superfeedr error on non-existing topic)

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This commit is contained in:
Mikael Nordfeldth 2017-04-30 10:29:16 +02:00
parent b20b9727cf
commit 16880de8f6
2 changed files with 24 additions and 21 deletions
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43
plugins/OStatus/classes/FeedSub.php
View File

@ -204,8 +204,16 @@ class FeedSub extends Managed_DataObject
/**
* ensureHub will only do $this->update if !empty($this->id)
* because otherwise the object has not been created yet.
*
* @param bool $autorenew Whether to autorenew the feed after ensuring the hub URL
*
* @return null if actively avoiding the database
* int number of rows updated in the database (0 means untouched)
*
* @throws ServerException if something went wrong when updating the database
* FeedSubNoHubException if no hub URL was discovered
*/
public function ensureHub()
public function ensureHub($autorenew=false)
{
if ($this->sub_state !== 'inactive') {
common_log(LOG_INFO, sprintf(__METHOD__ . ': Running hub discovery a possibly active feed in %s state for URI %s', _ve($this->sub_state), _ve($this->uri)));
@ -221,26 +229,23 @@ class FeedSub extends Managed_DataObject
throw new FeedSubNoHubException();
}
// if we've already got a DB object stored, we want to UPDATE, not INSERT
$orig = !empty($this->id) ? clone($this) : null;
if (!empty($this->huburi) && $this->huburi !== $huburi) {
// There was a huburi already and now we're replacing it,
// so we have to set a new secret because otherwise we're
// possibly vulnerable to attack from the previous hub.
// ...but as I understand it this is done in $this->doSubscribe()
// which is called from $this->subscribe() (which in turn is
// called from $this->renew())
}
$old_huburi = $this->huburi; // most likely null if we're INSERTing
$this->huburi = $huburi;
if (!empty($this->id)) {
common_debug(sprintf(__METHOD__ . ': Feed uri==%s huburi before=%s after=%s (identical==%s)', _ve($this->uri), _ve($old_huburi), _ve($this->huburi), _ve($old_huburi===$this->huburi)));
$result = $this->update($orig);
if ($result === false) {
// TODO: Get a DB exception class going...
common_debug('Database update failed for FeedSub id=='._ve($this->id).' with new huburi: '._ve($this->huburi));
throw new ServerException('Database update failed for FeedSub.');
}
if ($autorenew) {
$this->renew();
}
return $result;
}
@ -430,6 +435,12 @@ class FeedSub extends Managed_DataObject
return;
} else if ($status >= 200 && $status < 300) {
common_log(LOG_ERR, __METHOD__ . ": sub req returned unexpected HTTP $status: " . $response->getBody());
} else if ($status == 422) {
// Error code regarding something wrong in the data (it seems
// that we're talking to a PuSH hub at least, so let's check
// our own data to be sure we're not mistaken somehow.
$this->ensureHub(true);
} else {
common_log(LOG_ERR, __METHOD__ . ": sub req failed with HTTP $status: " . $response->getBody());
}
@ -528,17 +539,9 @@ class FeedSub extends Managed_DataObject
} catch (FeedSubBadPushSignatureException $e) {
// We got a signature, so something could be wrong. Let's check to see if
// maybe upstream has switched to another hub. Let's fetch feed and then
// compare rel="hub" with $this->huburi
// compare rel="hub" with $this->huburi, which is done in $this->ensureHub()
$old_huburi = $this->huburi;
$this->ensureHub();
common_debug(sprintf(__METHOD__ . ': Feed uri==%s huburi before=%s after=%s (identical==%s)', _ve($this->uri), _ve($old_huburi), _ve($this->huburi), _ve($old_huburi===$this->huburi)));
// If the huburi is the same as before a renewal will happen some time in the future anyway.
if ($old_huburi !== $this->huburi) {
// let's make sure that this new hub knows that we want to subscribe
$this->renew();
}
$this->ensureHub(true);
}
}

2
plugins/OStatus/lib/pushinqueuehandler.php
View File

@ -45,7 +45,7 @@ class PushInQueueHandler extends QueueHandler
} catch(NoResultException $e) {
common_log(LOG_INFO, "Discarding POST to unknown feed subscription id {$feedsub_id}");
} catch(Exception $e) {
common_log(LOG_ERR, "Exception during PuSH input processing for {$feedsub->getUri()}: " . $e->getMessage());
common_log(LOG_ERR, "Exception "._ve(get_class($e))." during PuSH input processing for {$feedsub->getUri()}: " . $e->getMessage());
}
return true;
}