518 lines
18 KiB
PHP
518 lines
18 KiB
PHP
<?php
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class Rest_MediaController extends Zend_Rest_Controller
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{
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const MUSIC_DIRS_STOR_PK = 1;
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const IMPORT_STATUS_SUCCESS = 0;
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const IMPORT_STATUS_PENDING = 1;
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const IMPORT_STATUS_FAILED = 2;
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//fields that are not modifiable via our RESTful API
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private static $blackList = array(
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'id',
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'directory',
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'filepath',
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'file_exists',
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'mtime',
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'utime',
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'lptime',
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'silan_check',
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'soundcloud_id',
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'is_scheduled',
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'is_playlist'
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);
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public function init()
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{
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$this->view->layout()->disableLayout();
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}
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public function indexAction()
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{
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if (!$this->verifyAuth(true, true))
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{
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return;
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}
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$files_array = array();
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foreach (CcFilesQuery::create()->find() as $file)
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{
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array_push($files_array, CcFiles::sanitizeResponse($file));
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}
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$this->getResponse()
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->setHttpResponseCode(200)
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->appendBody(json_encode($files_array));
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/** TODO: Use this simpler code instead after we upgrade to Propel 1.7 (Airtime 2.6.x branch):
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$this->getResponse()
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->setHttpResponseCode(200)
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->appendBody(json_encode(CcFilesQuery::create()->find()->toArray(BasePeer::TYPE_FIELDNAME)));
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*/
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}
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public function downloadAction()
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{
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if (!$this->verifyAuth(true, true))
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{
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return;
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}
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$id = $this->getId();
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if (!$id) {
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return;
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}
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$file = CcFilesQuery::create()->findPk($id);
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if ($file) {
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$con = Propel::getConnection();
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$storedFile = new Application_Model_StoredFile($file, $con);
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$baseUrl = Application_Common_OsPath::getBaseDir();
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$CC_CONFIG = Config::getConfig();
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$this->getResponse()
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->setHttpResponseCode(200)
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->appendBody($this->_redirect($storedFile->getRelativeFileUrl($baseUrl).'/download/true/api_key/'.$CC_CONFIG["apiKey"][0]));
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} else {
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$this->fileNotFoundResponse();
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}
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}
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public function getAction()
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{
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if (!$this->verifyAuth(true, true))
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{
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return;
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}
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$id = $this->getId();
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if (!$id) {
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return;
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}
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$file = CcFilesQuery::create()->findPk($id);
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if ($file) {
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$this->getResponse()
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->setHttpResponseCode(200)
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->appendBody(json_encode(CcFiles::sanitizeResponse($file)));
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} else {
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$this->fileNotFoundResponse();
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}
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}
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public function postAction()
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{
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if (!$this->verifyAuth(true, true))
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{
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return;
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}
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//If we do get an ID on a POST, then that doesn't make any sense
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//since POST is only for creating.
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if ($id = $this->_getParam('id', false)) {
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$resp = $this->getResponse();
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$resp->setHttpResponseCode(400);
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$resp->appendBody("ERROR: ID should not be specified when using POST. POST is only used for file creation, and an ID will be chosen by Airtime");
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return;
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}
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if (Application_Model_Systemstatus::isDiskOverQuota()) {
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$this->getResponse()
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->setHttpResponseCode(400)
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->appendBody("ERROR: Disk Quota reached.");
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return;
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}
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$file = new CcFiles();
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$whiteList = $this->removeBlacklistedFieldsFromRequestData($this->getRequest()->getPost());
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if (!$this->validateRequestData($file, $whiteList)) {
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$file->setDbTrackTitle($_FILES["file"]["name"]);
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$file->setDbUtime(new DateTime("now", new DateTimeZone("UTC")));
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$file->save();
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return;
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} else {
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/* If full_path is set, the post request came from ftp.
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* Users are allowed to upload folders via ftp. If this is the case
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* we need to include the folder name with the file name, otherwise
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* files won't get removed from the organize folder.
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*/
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if (isset($whiteList["full_path"])) {
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$fullPath = $whiteList["full_path"];
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$basePath = isset($_SERVER['AIRTIME_BASE']) ? $_SERVER['AIRTIME_BASE']."/srv/airtime/stor/organize/" : "/srv/airtime/stor/organize/";
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//$relativePath is the folder name(if one) + track name, that was uploaded via ftp
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$relativePath = substr($fullPath, strlen($basePath)-1);
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} else {
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$relativePath = $_FILES["file"]["name"];
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}
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$file->fromArray($whiteList);
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$file->setDbOwnerId($this->getOwnerId());
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$now = new DateTime("now", new DateTimeZone("UTC"));
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$file->setDbTrackTitle($_FILES["file"]["name"]);
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$file->setDbUtime($now);
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$file->setDbHidden(true);
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$file->save();
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$callbackUrl = $this->getRequest()->getScheme() . '://' . $this->getRequest()->getHttpHost() . $this->getRequest()->getRequestUri() . "/" . $file->getPrimaryKey();
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$this->processUploadedFile($callbackUrl, $relativePath, $this->getOwnerId());
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$this->getResponse()
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->setHttpResponseCode(201)
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->appendBody(json_encode(CcFiles::sanitizeResponse($file)));
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}
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}
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public function putAction()
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{
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if (!$this->verifyAuth(true, true))
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{
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return;
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}
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$id = $this->getId();
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if (!$id) {
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return;
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}
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$file = CcFilesQuery::create()->findPk($id);
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// Since we check for this value when deleting files, set it first
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//$file->setDbDirectory(self::MUSIC_DIRS_STOR_PK);
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$requestData = json_decode($this->getRequest()->getRawBody(), true);
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$whiteList = $this->removeBlacklistedFieldsFromRequestData($requestData);
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$whiteList = $this->stripTimeStampFromYearTag($whiteList);
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if (!$this->validateRequestData($file, $whiteList)) {
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$file->save();
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return;
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} else if ($file && isset($requestData["resource_id"])) {
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$file->fromArray($whiteList, BasePeer::TYPE_FIELDNAME);
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//store the original filename
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$file->setDbFilepath($requestData["filename"]);
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$fileSizeBytes = $requestData["filesize"];
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if (!isset($fileSizeBytes) || $fileSizeBytes === false)
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{
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$file->setDbImportStatus(2)->save();
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$this->fileNotFoundResponse();
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return;
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}
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$cloudFile = new CloudFile();
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$cloudFile->setStorageBackend($requestData["storage_backend"]);
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$cloudFile->setResourceId($requestData["resource_id"]);
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$cloudFile->setCcFiles($file);
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$cloudFile->save();
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Application_Model_Preference::updateDiskUsage($fileSizeBytes);
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$now = new DateTime("now", new DateTimeZone("UTC"));
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$file->setDbMtime($now);
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$file->save();
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$this->getResponse()
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->setHttpResponseCode(200)
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->appendBody(json_encode(CcFiles::sanitizeResponse($file)));
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} else {
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$file->setDbImportStatus(self::IMPORT_STATUS_FAILED)->save();
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$this->fileNotFoundResponse();
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}
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}
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public function deleteAction()
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{
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if (!$this->verifyAuth(true, true))
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{
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return;
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}
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$id = $this->getId();
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if (!$id) {
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return;
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}
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$file = CcFilesQuery::create()->findPk($id);
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if ($file) {
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$con = Propel::getConnection();
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$storedFile = Application_Model_StoredFile::RecallById($id, $con);
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$storedFile->delete(); //TODO: This checks your session permissions... Make it work without a session?
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$this->getResponse()
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->setHttpResponseCode(204);
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} else {
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$this->fileNotFoundResponse();
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}
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}
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private function getId()
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{
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if (!$id = $this->_getParam('id', false)) {
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$resp = $this->getResponse();
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$resp->setHttpResponseCode(400);
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$resp->appendBody("ERROR: No file ID specified.");
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return false;
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}
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return $id;
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}
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private function verifyAuth($checkApiKey, $checkSession)
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{
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// Session takes precedence over API key for now:
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if ($checkSession && $this->verifySession()) {
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// CSRF token validation only applies to session based authorization.
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if(!$this->verifyCSRFToken($this->_getParam('csrf_token'))){
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$resp = $this->getResponse();
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$resp->setHttpResponseCode(401);
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$resp->appendBody("ERROR: Token Missmatch.");
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return false;
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}
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return true;
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}
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if ($checkApiKey && $this->verifyAPIKey())
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{
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return true;
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}
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$resp = $this->getResponse();
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$resp->setHttpResponseCode(401);
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$resp->appendBody("ERROR: Incorrect API key.");
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return false;
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}
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private function verifyCSRFToken($token){
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$current_namespace = new Zend_Session_Namespace('csrf_namespace');
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$observed_csrf_token = $token;
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$expected_csrf_token = $current_namespace->authtoken;
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if($observed_csrf_token == $expected_csrf_token){
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return true;
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}else{
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return false;
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}
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}
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private function verifyAPIKey()
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{
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//The API key is passed in via HTTP "basic authentication":
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// http://en.wikipedia.org/wiki/Basic_access_authentication
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$CC_CONFIG = Config::getConfig();
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//Decode the API key that was passed to us in the HTTP request.
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$authHeader = $this->getRequest()->getHeader("Authorization");
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$encodedRequestApiKey = substr($authHeader, strlen("Basic "));
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$encodedStoredApiKey = base64_encode($CC_CONFIG["apiKey"][0] . ":");
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if ($encodedRequestApiKey === $encodedStoredApiKey)
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{
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return true;
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} else {
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return false;
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}
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return false;
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}
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private function verifySession()
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{
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$auth = Zend_Auth::getInstance();
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if ($auth->hasIdentity())
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{
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return true;
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}
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return false;
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//Token checking stub code. We'd need to change LoginController.php to generate a token too, but
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//but luckily all the token code already exists and works.
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//$auth = new Application_Model_Auth();
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//$auth->checkToken(Application_Model_Preference::getUserId(), $token);
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}
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private function fileNotFoundResponse()
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{
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$resp = $this->getResponse();
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$resp->setHttpResponseCode(404);
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$resp->appendBody("ERROR: Media not found.");
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}
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private function importFailedResponse()
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{
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$resp = $this->getResponse();
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$resp->setHttpResponseCode(200);
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$resp->appendBody("ERROR: Import Failed.");
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}
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private function invalidDataResponse()
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{
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$resp = $this->getResponse();
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$resp->setHttpResponseCode(422);
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$resp->appendBody("ERROR: Invalid data");
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}
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private function validateRequestData($file, &$whiteList)
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{
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try {
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// EditAudioMD form is used here for validation
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$fileForm = new Application_Form_EditAudioMD();
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$fileForm->startForm($file->getDbId());
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$fileForm->populate($whiteList);
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/*
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* Here we are truncating metadata of any characters greater than the
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* max string length set in the database. In the rare case a track's
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* genre is more than 64 chars, for example, we don't want to reject
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* tracks for that reason
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*/
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foreach($whiteList as $tag => &$value) {
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if ($fileForm->getElement($tag)) {
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$stringLengthValidator = $fileForm->getElement($tag)->getValidator('StringLength');
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//$stringLengthValidator will be false if the StringLength validator doesn't exist on the current element
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//in which case we don't have to truncate the extra characters
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if ($stringLengthValidator) {
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$value = substr($value, 0, $stringLengthValidator->getMax());
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}
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$value = $this->stripInvalidUtf8Characters($value);
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}
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}
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if (!$fileForm->isValidPartial($whiteList)) {
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throw new Exception("Data validation failed");
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}
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} catch (Exception $e) {
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$errors = $fileForm->getErrors();
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$messages = $fileForm->getMessages();
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Logging::error($messages);
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$file->setDbImportStatus(2);
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$file->setDbHidden(true);
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$this->invalidDataResponse();
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return false;
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}
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return true;
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}
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private function processUploadedFile($callbackUrl, $originalFilename, $ownerId)
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{
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$CC_CONFIG = Config::getConfig();
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$apiKey = $CC_CONFIG["apiKey"][0];
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$tempFilePath = $_FILES['file']['tmp_name'];
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$tempFileName = basename($tempFilePath);
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//Only accept files with a file extension that we support.
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$fileExtension = pathinfo($originalFilename, PATHINFO_EXTENSION);
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if (!in_array(strtolower($fileExtension), explode(",", "ogg,mp3,oga,flac,wav,m4a,mp4,opus")))
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{
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@unlink($tempFilePath);
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throw new Exception("Bad file extension.");
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}
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//TODO: Remove uploadFileAction from ApiController.php **IMPORTANT** - It's used by the recorder daemon...
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$storDir = Application_Model_MusicDir::getStorDir();
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$importedStorageDirectory = $storDir->getDirectory() . "/imported/" . $ownerId;
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try {
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//Copy the temporary file over to the "organize" folder so that it's off our webserver
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//and accessible by airtime_analyzer which could be running on a different machine.
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$newTempFilePath = Application_Model_StoredFile::copyFileToStor($tempFilePath, $originalFilename);
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} catch (Exception $e) {
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@unlink($tempFilePath);
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Logging::error($e->getMessage());
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return;
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}
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//Dispatch a message to airtime_analyzer through RabbitMQ,
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//notifying it that there's a new upload to process!
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Application_Model_RabbitMq::SendMessageToAnalyzer($newTempFilePath,
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$importedStorageDirectory, basename($originalFilename),
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$callbackUrl, $apiKey);
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}
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private function getOwnerId()
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{
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try {
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if ($this->verifySession()) {
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$service_user = new Application_Service_UserService();
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return $service_user->getCurrentUser()->getDbId();
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} else {
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$defaultOwner = CcSubjsQuery::create()
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->filterByDbType('A')
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->orderByDbId()
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->findOne();
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if (!$defaultOwner) {
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// what to do if there is no admin user?
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// should we handle this case?
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return null;
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}
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return $defaultOwner->getDbId();
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}
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} catch(Exception $e) {
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Logging::info($e->getMessage());
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}
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}
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/**
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*
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* Strips out fields from incoming request data that should never be modified
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* from outside of Airtime
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* @param array $data
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*/
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private static function removeBlacklistedFieldsFromRequestData($data)
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{
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foreach (self::$blackList as $key) {
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unset($data[$key]);
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}
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return $data;
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}
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private function removeEmptySubFolders($path)
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{
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exec("find $path -empty -type d -delete");
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}
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/*
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* It's possible that the year tag will be a timestamp but Airtime doesn't support this.
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* The year field in cc_files can only be 16 chars max.
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*
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* This functions strips the year field of it's timestamp, if one, and leaves just the year
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*/
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private function stripTimeStampFromYearTag($metadata)
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{
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if (isset($metadata["year"])) {
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if (preg_match("/^(\d{4})-(\d{2})-(\d{2})(?:\s+(\d{2}):(\d{2}):(\d{2}))?$/", $metadata["year"])) {
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$metadata["year"] = substr($metadata["year"], 0, 4);
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}
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}
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return $metadata;
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}
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private function stripInvalidUtf8Characters($string)
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{
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//Remove invalid UTF-8 characters
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//reject overly long 2 byte sequences, as well as characters above U+10000 and replace with ?
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$string = preg_replace('/[\x00-\x08\x10\x0B\x0C\x0E-\x19\x7F]'.
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'|[\x00-\x7F][\x80-\xBF]+'.
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'|([\xC0\xC1]|[\xF0-\xFF])[\x80-\xBF]*'.
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'|[\xC2-\xDF]((?![\x80-\xBF])|[\x80-\xBF]{2,})'.
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'|[\xE0-\xEF](([\x80-\xBF](?![\x80-\xBF]))|(?![\x80-\xBF]{2})|[\x80-\xBF]{3,})/S',
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'?', $string );
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//reject overly long 3 byte sequences and UTF-16 surrogates and replace with ?
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$string = preg_replace('/\xE0[\x80-\x9F][\x80-\xBF]'.
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'|\xED[\xA0-\xBF][\x80-\xBF]/S','?', $string );
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//Do a final encoding conversion to
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$string = mb_convert_encoding($string, 'UTF-8', 'UTF-8');
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return $string;
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}
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}
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