/** {@inheritdoc} */
public function opendir($path) {
$this->init();
$path = $this->cleanPath($path);
try {
$response = $this->client->propfind(
$this->encodePath($path),
array(),
1
);
$id = md5('webdav' . $this->root . $path);
$content = array();
$files = array_keys($response);
array_shift($files); //the first entry is the current directory
if (!$this->statCache->hasKey($path)) {
$this->statCache->set($path, true);
}
foreach ($files as $file) {
$file = urldecode($file);
// do not store the real entry, we might not have all properties
if (!$this->statCache->hasKey($path)) {
$this->statCache->set($file, true);
}
$file = basename($file);
$content[] = $file;
}
Dir::register($id, $content);
return opendir('fakedir://' . $id);
} catch (ClientHttpException $e) {
if ($e->getHttpStatus() === 404) {
$this->statCache->clear($path . '/');
$this->statCache->set($path, false);
return false;
}
$this->convertException($e);
} catch (\Exception $e) {
$this->convertException($e);
}
return false;
}
/**
* see http://php.net/manual/en/function.fopen.php
*
* @param string $path
* @param string $mode
* @return resource|bool
* @throws GenericEncryptionException
* @throws ModuleDoesNotExistsException
*/
public function fopen($path, $mode)
{
// check if the file is stored in the array cache, this means that we
// copy a file over to the versions folder, in this case we don't want to
// decrypt it
if ($this->arrayCache->hasKey('encryption_copy_version_' . $path)) {
$this->arrayCache->remove('encryption_copy_version_' . $path);
return $this->storage->fopen($path, $mode);
}
$encryptionEnabled = $this->encryptionManager->isEnabled();
$shouldEncrypt = false;
$encryptionModule = null;
$header = $this->getHeader($path);
$signed = isset($header['signed']) && $header['signed'] === 'true' ? true : false;
$fullPath = $this->getFullPath($path);
$encryptionModuleId = $this->util->getEncryptionModuleId($header);
if ($this->util->isExcluded($fullPath) === false) {
$size = $unencryptedSize = 0;
$realFile = $this->util->stripPartialFileExtension($path);
$targetExists = $this->file_exists($realFile) || $this->file_exists($path);
$targetIsEncrypted = false;
if ($targetExists) {
// in case the file exists we require the explicit module as
// specified in the file header - otherwise we need to fail hard to
// prevent data loss on client side
if (!empty($encryptionModuleId)) {
$targetIsEncrypted = true;
$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
}
if ($this->file_exists($path)) {
$size = $this->storage->filesize($path);
$unencryptedSize = $this->filesize($path);
} else {
$size = $unencryptedSize = 0;
}
}
try {
if ($mode === 'w' || $mode === 'w+' || $mode === 'wb' || $mode === 'wb+') {
// don't overwrite encrypted files if encryption is not enabled
if ($targetIsEncrypted && $encryptionEnabled === false) {
throw new GenericEncryptionException('Tried to access encrypted file but encryption is not enabled');
}
if ($encryptionEnabled) {
// if $encryptionModuleId is empty, the default module will be used
$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
$shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
$signed = true;
}
} else {
$info = $this->getCache()->get($path);
// only get encryption module if we found one in the header
// or if file should be encrypted according to the file cache
if (!empty($encryptionModuleId)) {
$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
$shouldEncrypt = true;
} else {
if (empty($encryptionModuleId) && $info['encrypted'] === true) {
// we come from a old installation. No header and/or no module defined
// but the file is encrypted. In this case we need to use the
// OC_DEFAULT_MODULE to read the file
$encryptionModule = $this->encryptionManager->getEncryptionModule('OC_DEFAULT_MODULE');
$shouldEncrypt = true;
$targetIsEncrypted = true;
}
}
}
} catch (ModuleDoesNotExistsException $e) {
$this->logger->warning('Encryption module "' . $encryptionModuleId . '" not found, file will be stored unencrypted (' . $e->getMessage() . ')');
}
// encryption disabled on write of new file and write to existing unencrypted file -> don't encrypt
if (!$encryptionEnabled || !$this->mount->getOption('encrypt', true)) {
if (!$targetExists || !$targetIsEncrypted) {
$shouldEncrypt = false;
}
}
if ($shouldEncrypt === true && $encryptionModule !== null) {
$headerSize = $this->getHeaderSize($path);
$source = $this->storage->fopen($path, $mode);
if (!is_resource($source)) {
return false;
}
$handle = \OC\Files\Stream\Encryption::wrap($source, $path, $fullPath, $header, $this->uid, $encryptionModule, $this->storage, $this, $this->util, $this->fileHelper, $mode, $size, $unencryptedSize, $headerSize, $signed);
return $handle;
}
}
return $this->storage->fopen($path, $mode);
}
