/**
* TODO(ianbarber): This function needs simplifying.
*
* @param $name
* @param $arguments
* @param $expected_class - optional, the expected class name
*
* @return Google_Http_Request|expected_class
* @throws Google_ApiException
*/
public function call($name, $arguments, $expected_class = null)
{
if (!isset($this->methods[$name])) {
throw new Google_ApiException("Unknown function: " . "{$this->serviceName}->{$this->resourceName}->{$name}()");
}
$method = $this->methods[$name];
$parameters = $arguments[0];
// postBody is a special case since it's not defined in the discovery
// document as parameter, but we abuse the param entry for storing it.
$postBody = null;
if (isset($parameters['postBody'])) {
if ($parameters['postBody'] instanceof Google_ApiModel) {
// In the cases the post body is an existing object, we want
// to use the smart method to create a simple object for
// for JSONification.
$parameters['postBody'] = $parameters['postBody']->toSimpleObject();
} else {
if (is_object($parameters['postBody'])) {
// If the post body is another kind of object, we will try and
// wrangle it into a sensible format.
$parameters['postBody'] = $this->convertToArrayAndStripNulls($parameters['postBody']);
}
}
$postBody = json_encode($parameters['postBody']);
unset($parameters['postBody']);
}
// TODO(ianbarber): optParams here probably should have been
// handled already - this may well be redundant code.
if (isset($parameters['optParams'])) {
$optParams = $parameters['optParams'];
unset($parameters['optParams']);
$parameters = array_merge($parameters, $optParams);
}
if (!isset($method['parameters'])) {
$method['parameters'] = array();
}
$method['parameters'] = array_merge($method['parameters'], $this->stackParameters);
foreach ($parameters as $key => $val) {
if ($key != 'postBody' && !isset($method['parameters'][$key])) {
throw new Google_ApiException("({$name}) unknown parameter: '{$key}'");
}
}
foreach ($method['parameters'] as $paramName => $paramSpec) {
if (isset($paramSpec['required']) && $paramSpec['required'] && !isset($parameters[$paramName])) {
throw new Google_ApiException("({$name}) missing required param: '{$paramName}'");
}
if (isset($parameters[$paramName])) {
$value = $parameters[$paramName];
$parameters[$paramName] = $paramSpec;
$parameters[$paramName]['value'] = $value;
unset($parameters[$paramName]['required']);
} else {
// Ensure we don't pass nulls.
unset($parameters[$paramName]);
}
}
$servicePath = $this->service->servicePath;
$url = Google_Http_REST::createRequestUri($servicePath, $method['path'], $parameters);
$httpRequest = new Google_Http_Request($url, $method['httpMethod'], null, $postBody);
$httpRequest->setBaseComponent($this->client->getBasePath());
if ($postBody) {
$contentTypeHeader = array();
$contentTypeHeader['content-type'] = 'application/json; charset=UTF-8';
$httpRequest->setRequestHeaders($contentTypeHeader);
$httpRequest->setPostBody($postBody);
}
$httpRequest = $this->client->getAuth()->sign($httpRequest);
$httpRequest->setExpectedClass($expected_class);
if (isset($parameters['data']) && ($parameters['uploadType']['value'] == 'media' || $parameters['uploadType']['value'] == 'multipart')) {
// If we are doing a simple media upload, trigger that as a convenience.
$mfu = new Google_Http_MediaFileUpload($this->client, $httpRequest, isset($parameters['mimeType']) ? $parameters['mimeType']['value'] : 'application/octet-stream', $parameters['data']['value']);
}
if ($this->client->shouldDefer()) {
// If we are in batch or upload mode, return the raw request.
return $httpRequest;
}
return $this->client->execute($httpRequest);
}
/**
* Downloads backup file from Google Drive to root folder on local server.
*
* @param array $args arguments passed to the function
* [google_drive_token] -> user's Google drive token in json form
* [google_drive_directory] -> folder on user's Google Drive account which backup file should be downloaded from
* [google_drive_site_folder] -> subfolder with site name in google_drive_directory which backup file should be downloaded from
* [backup_file] -> absolute path of backup file on local server
* [file_id] -> google file id
*
* @return bool|array absolute path to downloaded file is successful, array with error message if not
*/
public function get_google_drive_backup($args)
{
mwp_register_autoload_google();
$googleClient = new Google_ApiClient();
$googleClient->setAccessToken($args['google_drive_token']);
$driveService = new Google_Service_Drive($googleClient);
mwp_logger()->info('Connecting to Google Drive');
try {
$about = $driveService->about->get();
$rootFolderId = $about->getRootFolderId();
} catch (Exception $e) {
mwp_logger()->error('Error while connecting to Google Drive', array('exception' => $e));
return array('error' => 'Error while connecting to Google Drive: ' . $e->getMessage());
}
if (empty($args['file_id'])) {
mwp_logger()->info('Looking for backup directory');
try {
$backupFolderFiles = $driveService->files->listFiles(array('q' => sprintf("title='%s' and '%s' in parents and trashed = false", addslashes($args['google_drive_directory']), $rootFolderId)));
} catch (Exception $e) {
mwp_logger()->error('Error while looking for backup directory', array('exception' => $e));
return array('error' => 'Error while looking for backup directory: ' . $e->getMessage());
}
if (!$backupFolderFiles->offsetExists(0)) {
mwp_logger()->error('Backup directory ("{directory}") does not exist', array('directory' => $args['google_drive_directory']));
return array('error' => sprintf("The backup directory (%s) does not exist.", $args['google_drive_directory']));
}
/** @var Google_Service_Drive_DriveFile $backupFolder */
$backupFolder = $backupFolderFiles->offsetGet(0);
if ($args['google_drive_site_folder']) {
mwp_logger()->info('Looking into the site folder');
try {
$siteFolderFiles = $driveService->files->listFiles(array('q' => sprintf("title='%s' and '%s' in parents and trashed = false", addslashes($this->site_name), $backupFolder->getId())));
} catch (Exception $e) {
mwp_logger()->error('Error while looking for the site folder', array('exception' => $e));
return array('error' => 'Error while looking for the site folder: ' . $e->getMessage());
}
if ($siteFolderFiles->offsetExists(0)) {
$backupFolder = $siteFolderFiles->offsetGet(0);
}
}
try {
$backupFiles = $driveService->files->listFiles(array('q' => sprintf("title='%s' and '%s' in parents and trashed = false", addslashes($args['backup_file']), $backupFolder->getId())));
} catch (Exception $e) {
mwp_logger()->error('Error while fetching Google Drive backup file', array('file_name' => $args['backup_file'], 'exception' => $e));
return array('error' => 'Error while fetching Google Drive backup file: ' . $e->getMessage());
}
if (!$backupFiles->offsetExists(0)) {
return array('error' => sprintf('Backup file "%s" was not found on your Google Drive account.', $args['backup_file']));
}
/** @var Google_Service_Drive_DriveFile $backupFile */
$backupFile = $backupFiles->offsetGet(0);
} else {
try {
/** @var Google_Service_Drive_DriveFile $backupFile */
$backupFile = $driveService->files->get($args['file_id']);
} catch (Exception $e) {
mwp_logger()->error('Error while fetching Google Drive backup file by id', array('file_id' => $args['file_id'], 'exception' => $e));
return array('error' => 'Error while fetching Google Drive backup file: ' . $e->getMessage());
}
}
$downloadUrl = $backupFile->getDownloadUrl();
$downloadLocation = ABSPATH . 'mwp_temp_backup.zip';
$fileSize = $backupFile->getFileSize();
$downloaded = 0;
$chunkSize = 1024 * 1024 * 4;
$fh = fopen($downloadLocation, 'w+');
if (!is_resource($fh)) {
return array('error' => 'Temporary backup download location is not writable (location: "%s").', $downloadLocation);
}
while ($downloaded < $fileSize) {
$request = new Google_Http_Request($downloadUrl);
$googleClient->getAuth()->sign($request);
$toDownload = min($chunkSize, $fileSize - $downloaded);
mwp_logger()->info('Downloading: {downloaded}/{size}', array('downloaded' => mwp_format_bytes($downloaded), 'size' => mwp_format_bytes($fileSize)));
$request->setRequestHeaders($request->getRequestHeaders() + array('Range' => 'bytes=' . $downloaded . '-' . ($downloaded + $toDownload - 1)));
$googleClient->getIo()->makeRequest($request);
if ($request->getResponseHttpCode() !== 206) {
mwp_logger()->error('Google Drive has returned an invalid response', array('response_headers' => $request->getResponseHeaders(), 'response_body' => $request->getResponseBody()));
return array('error' => sprintf('Google Drive service has returned an invalid response code (%s)', $request->getResponseHttpCode()));
}
fwrite($fh, $request->getResponseBody());
$downloaded += $toDownload;
}
fclose($fh);
$fileMd5 = md5_file($downloadLocation);
if ($backupFile->getMd5Checksum() !== $fileMd5) {
mwp_logger()->error('File checksum does not match, downloaded file is corrupted.', array('original' => $backupFile->getMd5Checksum(), 'downloaded' => $fileMd5));
return array('error' => 'File downloaded was corrupted.');
}
return $downloadLocation;
}