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<?php
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/**
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* ownCloud - Documents App
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*
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* @author Victor Dubiniuk
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* @copyright 2013 Victor Dubiniuk victor.dubiniuk@gmail.com
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*
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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*/
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namespace OCA\Documents;
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class BadRequestException extends \Exception {
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protected $body = "";
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public function setBody($body){
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$this->body = $body;
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}
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public function getBody(){
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return $this->body;
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}
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}
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\OCP\JSON::checkAppEnabled('documents');
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$response = array();
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try{
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$request = new Request();
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$esId = $request->getParam('args/es_id');
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$session = new Db\Session();
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$session->load($esId);
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$memberId = $request->getParam('args/member_id');
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$member = new Db\Member();
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$member->load($memberId);
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if (!$member->getIsGuest()){
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\OCP\JSON::checkLoggedIn();
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}
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try {
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$file = new File($session->getFileId());
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} catch (\Exception $e){
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Helper::warnLog('Error. Session no longer exists. ' . $e->getMessage());
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$ex = new BadRequestException();
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$ex->setBody($request->getRawRequest());
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throw $ex;
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}
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$command = $request->getParam('command');
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switch ($command){
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case 'sync_ops':
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$seqHead = (string) $request->getParam('args/seq_head');
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if (!is_null($seqHead)){
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$ops = $request->getParam('args/client_ops');
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$hasOps = is_array($ops) && count($ops)>0;
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$op = new Db\Op();
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$currentHead = $op->getHeadSeq($esId);
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try {
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$member->updateActivity($memberId);
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} catch (\Exception $e){
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//Db error. Not critical
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}
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// TODO handle the case ($currentHead == "") && ($seqHead != "")
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if ($seqHead == $currentHead) {
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// matching heads
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if ($hasOps) {
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// incoming ops without conflict
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// Add incoming ops, respond with a new head
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$newHead = Db\Op::addOpsArray($esId, $memberId, $ops);
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$response["result"] = 'added';
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$response["head_seq"] = $newHead ? $newHead : $currentHead;
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} else {
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// no incoming ops (just checking for new ops...)
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$response["result"] = 'new_ops';
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$response["ops"] = array();
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$response["head_seq"] = $currentHead;
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}
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} else { // HEADs do not match
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$response["ops"] = $op->getOpsAfterJson($esId, $seqHead);
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$response["head_seq"] = $currentHead;
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$response["result"] = $hasOps ? 'conflict' : 'new_ops';
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}
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$inactiveMembers = $member->updateByTimeout($esId);
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foreach ($inactiveMembers as $inactive){
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$op->removeCursor($esId, $inactive);
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$op->removeMember($esId, $inactive);
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}
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} else {
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// Error - no seq_head passed
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throw new BadRequestException();
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}
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break;
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default:
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$ex = new BadRequestException();
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$ex->setBody($request->getRawRequest());
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throw $ex;
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break;
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}
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\OCP\JSON::success($response);
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} catch (BadRequestException $e){
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header('HTTP/1.1 400: BAD REQUEST');
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\OCP\JSON::error( array(
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'err' => 'bad request:[' . $e->getBody() . ']',
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));
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}
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exit();
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