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D2131.1775679209.diff
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D2131.1775679209.diff

diff --git a/lib/ext/Syncroton/Command/Sync.php b/lib/ext/Syncroton/Command/Sync.php
--- a/lib/ext/Syncroton/Command/Sync.php
+++ b/lib/ext/Syncroton/Command/Sync.php
@@ -545,19 +545,23 @@
} while (Syncroton_Server::validateSession() && time() - $intervalStart < $this->_heartbeatInterval - (Syncroton_Registry::getPingTimeout() + 10));
}
- // First check for folders hierarchy changes
foreach ($this->_collections as $collectionData) {
if (! ($collectionData->folder instanceof Syncroton_Model_IFolder)) {
+ // Report not found folders as such.
+ // Outlook refuses to remove some folders, and keeps requesting them.
+ // If we instead reported a folder hierarchy change, we end up in an endless loop: https://bifrost.kolabsystems.com/T399575
if ($this->_logger instanceof Zend_Log)
- $this->_logger->warn(__METHOD__ . '::' . __LINE__ . " Detected a folder hierarchy change on {$collectionData->collectionId}.");
+ $this->_logger->warn(__METHOD__ . '::' . __LINE__ . " Detected an unknown folder, skipping {$collectionData->collectionId}.");
- $sync->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_FOLDER_HIERARCHY_HAS_CHANGED));
- return $this->_outputDom;
+ $collection = $collections->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Collection'));
+ $collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'SyncKey', $collectionData->syncKey));
+ $collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'CollectionId', $collectionData->collectionId));
+ $collection->appendChild($this->_outputDom->createElementNS('uri:AirSync', 'Status', self::STATUS_OBJECT_NOT_FOUND));
+
+ continue;
}
- }
- foreach($this->_collections as $collectionData) {
$collectionChanges = 0;
/**

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