mirror of
https://github.com/EGroupware/egroupware.git
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315 lines
11 KiB
PHP
315 lines
11 KiB
PHP
<?php
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/**
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* eGroupWare - SyncML based on Horde 3
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*
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* Slow sync may just work; I think most of the work is going to be
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* done by the API.
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*
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*
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* Using the PEAR Log class (which need to be installed!)
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*
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* @link http://www.egroupware.org
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package api
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* @subpackage horde
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* @author Anthony Mills <amills@pyramid6.com>
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* @author Joerg Lehrke <jlehrke@noc.de>
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* @copyright (c) The Horde Project (http://www.horde.org/)
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* @version $Id$
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*/
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include_once 'Horde/SyncML/Sync/TwoWaySync.php';
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class Horde_SyncML_Sync_SlowSync extends Horde_SyncML_Sync_TwoWaySync {
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function handleSync($currentCmdID, $hordeType, $syncType, &$output, $refts) {
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global $registry;
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$history = $GLOBALS['egw']->contenthistory;
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$state = &$_SESSION['SyncML.state'];
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$maxMsgSize = $state->getMaxMsgSizeClient();
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$deviceInfo = $state->getClientDeviceInfo();
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if (isset($deviceInfo['maxEntries'])) {
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$maxEntries = $deviceInfo['maxEntries'];
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if (!$maxMsgSize && !$maxEntries) {
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// fallback to default
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$maxEntries = MAX_ENTRIES;
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}
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} else {
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$maxEntries = MAX_ENTRIES;
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}
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$serverAnchorNext = $state->getServerAnchorNext($syncType);
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// now we remove all UID from contentmap that have not been verified in this slowsync
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$state->removeOldUID($syncType, $serverAnchorNext);
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if (isset($state->curSyncItem)) {
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// Finish the pending sync item
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$cmd = &$state->curSyncItem;
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if (!is_a($cmd, 'Horde_SyncML_Command_Sync_ContentSyncElement')) {
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// Conflict with other datastore
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Horde :: logMessage("SyncML: handleSync($currentCmdID, $hordeType, $syncType) moreData conflict found",
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__FILE__, __LINE__, PEAR_LOG_WARNING);
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$state->setSyncStatus(SERVER_SYNC_DATA_PENDING);
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return $currentCmdID;
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}
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unset($state->curSyncItem);
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$currentCmdID = $cmd->outputCommand($currentCmdID, $output, 'Sync');
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// moreData split; save in session state and end current message
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if ($cmd->hasMoreData()) {
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$state->curSyncItem = &$cmd;
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$state->setSyncStatus(SERVER_SYNC_DATA_PENDING);
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return $currentCmdID;
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}
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$state->incNumberOfElements();
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}
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$adds =& $state->getAddedItems($syncType);
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$conflicts =& $state->getConflictItems($syncType);
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Horde::logMessage('SyncML: ' .count($adds). ' added items found for ' .$syncType, __FILE__, __LINE__, PEAR_LOG_DEBUG);
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Horde::logMessage('SyncML: ' . count($conflicts) . ' items to delete on client found for ' . $syncType, __FILE__, __LINE__, PEAR_LOG_DEBUG);
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if (is_array($adds)) {
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while ($guid = array_shift($adds)) {
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$currentSize = $output->getOutputSize();
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// return if we have to much data
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if (($maxEntries && ($state->getNumberOfElements() >= $maxEntries)
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&& isset($contentType['mayFragment'])
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&& $contentType['mayFragment']) ||
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($maxMsgSize && (($currentSize + MIN_MSG_LEFT * 2) > $maxMsgSize))) {
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// put the item back in the queue
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$adds[] = $guid;
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$state->maxNumberOfElements();
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$state->setSyncStatus(SERVER_SYNC_DATA_PENDING);
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return $currentCmdID;
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}
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if (($locID = $state->getLocID($syncType, $guid))) {
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Horde::logMessage("SyncML: slowsync add to client: $guid ignored, already at client($locID)",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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continue;
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}
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$guid_ts = $state->getSyncTSforAction($guid, 'add');
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if ($guid_ts > $serverAnchorNext) {
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// Change was made after we started this sync.
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// Don't sent this now to the client.
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Horde::logMessage("SyncML: slowsync add $guid is in our future",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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continue;
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}
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$contentType = $state->getPreferedContentTypeClient($this->_sourceLocURI, $this->_targetLocURI);
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$c = $registry->call($hordeType . '/export', array('guid' => $guid, 'contentType' => $contentType));
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if ($c === false) continue; // no content to export
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if (is_a($c, 'PEAR_Error')) {
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Horde::logMessage("SyncML: slowsync failed to export guid $guid:\n" . print_r($c, true),
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__FILE__, __LINE__, PEAR_LOG_WARNING);
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continue;
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}
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$size = strlen($c);
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// return if we have to much data
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if ($maxMsgSize && !$deviceInfo['supportLargeObjs']) {
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if (($size + MIN_MSG_LEFT * 2) > $maxMsgSize) {
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Horde::logMessage("SyncML: slowsync failed to export guid $guid due to size $size",
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__FILE__, __LINE__, PEAR_LOG_ERROR);
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continue;
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}
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if (($currentSize + $size + MIN_MSG_LEFT * 2) > $maxMsgSize) {
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// put the item back in the queue
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$adds[] = $guid;
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$state->setSyncStatus(SERVER_SYNC_DATA_PENDING);
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return $currentCmdID;
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}
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}
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Horde::logMessage("SyncML: slowsync add guid $guid to client\n$c",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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$cmd = new Horde_SyncML_Command_Sync_ContentSyncElement();
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$cmd->setContent($c);
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$cmd->setContentType($contentType['ContentType']);
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if (isset($contentType['ContentFormat'])) {
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$cmd->setContentFormat($contentType['ContentFormat']);
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}
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$cmd->setGUID($guid);
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$currentCmdID = $cmd->outputCommand($currentCmdID, $output, 'Add');
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$state->log('Server-Add');
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// moreData split; save in session state and end current message
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if ($cmd->hasMoreData()) {
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$state->curSyncItem = &$cmd;
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$state->setSyncStatus(SERVER_SYNC_DATA_PENDING);
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return $currentCmdID;
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}
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$state->incNumberOfElements();
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}
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}
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// handle remote deletes due to conflicts
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if (count($conflicts) > 0) {
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while ($locid = array_shift($conflicts)) {
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$currentSize = $output->getOutputSize();
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// return if we have to much data
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if (($maxEntries && ($state->getNumberOfElements() >= $maxEntries)
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&& isset ($contentType['mayFragment'])
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&& $contentType['mayFragment'])
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|| ($maxMsgSize
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&& (($currentSize +MIN_MSG_LEFT * 2) > $maxMsgSize))) {
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// put the item back in the queue
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$conflicts[] = $locid;
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$state->maxNumberOfElements();
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$state->setSyncStatus(SERVER_SYNC_DATA_PENDING);
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return $currentCmdID;
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}
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Horde :: logMessage("SyncML: delete client locid: $locid",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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// Create a Delete request for client.
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$cmd = new Horde_SyncML_Command_Sync_ContentSyncElement();
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$cmd->setLocURI($locid);
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$currentCmdID = $cmd->outputCommand($currentCmdID, $output, 'Delete');
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$state->log('Server-DeletedConflicts');
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$state->removeUID($syncType, $locid);
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// moreData split; save in session state and end current message
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if ($cmd->hasMoreData()) {
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$state->curSyncItem = & $cmd;
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$state->setSyncStatus(SERVER_SYNC_DATA_PENDING);
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return $currentCmdID;
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}
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$state->incNumberOfElements();
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}
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}
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Horde::logMessage("SyncML: All items handled for sync $syncType",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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$state->removeExpiredUID($syncType, $serverAnchorNext);
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$state->clearSync($syncType);
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return $currentCmdID;
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}
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/**
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* Here's where the actual processing of a client-sent Sync
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* Command takes place. Entries are added or replaced
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* from the server database by using Horde API (Registry) calls.
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*/
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function runSyncCommand(&$command) {
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global $registry;
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$history = $GLOBALS['egw']->contenthistory;
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$state = &$_SESSION['SyncML.state'];
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$type = $this->_targetLocURI;
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$syncml_prefs = $GLOBALS['egw_info']['user']['preferences']['syncml'];
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if (isset($syncml_prefs[$type])) {
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$sync_conflicts = $syncml_prefs[$type];
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} else {
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$sync_conflicts = CONFLICT_SERVER_WINNING;
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}
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$hordeType = $state->getHordeType($type);
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$syncElementItems = $command->getSyncElementItems();
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foreach($syncElementItems as $syncItem) {
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if(!$contentType = $syncItem->getContentType()) {
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$contentType = $state->getPreferedContentType($type);
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}
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if (($contentType == 'text/x-vcalendar' || $contentType == 'text/calendar')
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&& strpos($syncItem->getContent(), 'BEGIN:VTODO') !== false) {
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$hordeType = 'tasks';
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}
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$guid = false;
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$locURI = $syncItem->getLocURI();
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$oguid = $state->getGlobalUID($type, $locURI);
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$guid = $registry->call($hordeType . '/search',
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array($state->convertClient2Server($syncItem->getContent(), $contentType), $contentType, $oguid, $type));
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if (!is_a($guid, 'PEAR_Error') && $guid) {
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// Check if the found entry came from the client
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$guid_ts = $state->getSyncTSforAction($guid, 'add');
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$sync_ts = $state->getChangeTS($type, $guid);
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if ($oguid != $guid && $sync_ts && $sync_ts == $guid_ts) {
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// Entry came from the client, so we get a duplicate here
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Horde::logMessage('SyncML: CONFLICT for locuri ' . $syncItem->getLocURI()
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. ' guid ' . $guid , __FILE__, __LINE__, PEAR_LOG_WARNING);
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if ($sync_conflicts != CONFLICT_RESOLVED_WITH_DUPLICATE) {
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$state->log("Client-AddReplaceIgnored");
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$command->setStatus(RESPONSE_CONFILCT_RESOLVED_WITH_DUPLICATE);
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continue;
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}
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} else {
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# Entry exists in database already. Just update the mapping
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Horde::logMessage("SyncML: adding mapping for locuri: $locURI and guid: $guid",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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$state->setUID($type, $locURI, $guid);
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$state->log("Client-Map");
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$command->setStatus(RESPONSE_ALREADY_EXISITS);
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continue;
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}
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}
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if ($sync_conflicts > CONFLICT_RESOLVED_WITH_DUPLICATE) {
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// We enforce the client not to change anything
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if ($sync_conflicts > CONFLICT_CLIENT_CHANGES_IGNORED) {
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// delete this item from client
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Horde::logMessage("SyncML: Server RO! REMOVE $locURI from client",
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__FILE__, __LINE__, PEAR_LOG_WARNING);
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$state->addConflictItem($type, $locURI);
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} else {
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Horde::logMessage('SyncML: Server RO! REJECT all client changes',
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__FILE__, __LINE__, PEAR_LOG_WARNING);
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$state->log("Client-AddReplaceIgnored");
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}
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$command->setStatus(RESPONSE_NO_EXECUTED);
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continue;
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}
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// Add entry to the database.
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$state->removeUID($type, $locURI);
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Horde::logMessage("SyncML: try to add $locURI with contentype $contentType to $hordeType",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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$guid = $registry->call($hordeType . '/import',
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array($state->convertClient2Server($syncItem->getContent(), $contentType), $contentType));
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if (!is_a($guid, 'PEAR_Error') && $guid) {
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// first we try the modification timestamp then the creation ts
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if (!($ts = $state->getSyncTSforAction($guid, 'modify'))) {
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$ts = $state->getSyncTSforAction($guid, 'add');
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}
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$state->setUID($type, $locURI, $guid, $ts);
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$state->log("Client-AddReplace");
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Horde::logMessage("SyncML: replaced/added client entry $locURI as $guid",
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__FILE__, __LINE__, PEAR_LOG_DEBUG);
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} else {
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Horde::logMessage('SyncML: Error in replacing/add client entry ' . $locURI . ': '. $guid->message,
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__FILE__, __LINE__, PEAR_LOG_ERR);
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$state->log("Client-AddFailure");
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}
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}
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}
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function loadData() {
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global $registry;
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$state = &$_SESSION['SyncML.state'];
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$syncType = $this->_targetLocURI;
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$hordeType = $state->getHordeType($syncType);
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$state->setTargetURI($syncType);
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$future = $state->getServerAnchorNext($syncType);
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$state->mergeAddedItems($syncType, $registry->call($hordeType. '/list', array('filter' => $this->_filterExpression)));
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$this->_syncDataLoaded = TRUE;
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return count($state->getAddedItems($syncType)) + count($state->getConflictItems($syncType));
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}
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}
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