public upload now also works with encryption enabled

apps/files/index.php

@@ -108,7 +108,6 @@ if ($needUpgrade) {
 	// if the encryption app is disabled, than everything is fine (INIT_SUCCESSFUL status code)
 	$encryptionInitStatus = 2;
 	if (OC_App::isEnabled('files_encryption')) {
-		$publicUploadEnabled = 'no';
 		$session = new \OCA\Encryption\Session(new \OC\Files\View('/'));
 		$encryptionInitStatus = $session->getInitialized();
 	}

apps/files_encryption/lib/keymanager.php

@@ -112,6 +112,7 @@ class Keymanager {
 	 * @brief store file encryption key
 	 *
 	 * @param \OC_FilesystemView $view
+	 * @param \OCA\Encryption\Util $util
 	 * @param string $path relative path of the file, including filename
 	 * @param $userId
 	 * @param $catfile
@@ -120,13 +121,11 @@ class Keymanager {
 	 * @note The keyfile is not encrypted here. Client code must
 	 * asymmetrically encrypt the keyfile before passing it to this method
 	 */
-	public static function setFileKey(\OC_FilesystemView $view, $path, $userId, $catfile) {
+	public static function setFileKey(\OC_FilesystemView $view, $util, $path, $userId, $catfile) {
 
 		$proxyStatus = \OC_FileProxy::$enabled;
 		\OC_FileProxy::$enabled = false;
 
-		$userId = Helper::getUser($path);
-		$util = new Util($view, $userId);
 		list($owner, $filename) = $util->getUidAndFilename($path);
 
 		// in case of system wide mount points the keys are stored directly in the data directory
@@ -315,19 +314,16 @@ class Keymanager {
 	/**
 	 * @brief store multiple share keys for a single file
 	 * @param \OC_FilesystemView $view
-	 * @param $path
+	 * @param \OCA\Encryption\Util $util
+	 * @param string $path
 	 * @param array $shareKeys
 	 * @return bool
 	 */
-	public static function setShareKeys(\OC_FilesystemView $view, $path, array $shareKeys) {
+	public static function setShareKeys(\OC_FilesystemView $view, $util, $path, array $shareKeys) {
 
 		// $shareKeys must be  an array with the following format:
 		// [userId] => [encrypted key]
 
-		$userId = Helper::getUser($path);
-
-		$util = new Util($view, $userId);
-
 		list($owner, $filename) = $util->getUidAndFilename($path);
 
 		// in case of system wide mount points the keys are stored directly in the data directory

apps/files_encryption/lib/proxy.php

@@ -47,8 +47,10 @@ class Proxy extends \OC_FileProxy {
 	 */
 	private static function shouldEncrypt($path) {
 
+		$userId = Helper::getUser($path);
+
 		if (\OCP\App::isEnabled('files_encryption') === false || Crypt::mode() !== 'server' ||
-				strpos($path, '/' . \OCP\User::getUser() . '/files') !== 0) {
+				strpos($path, '/' . $userId . '/files') !== 0) {
 			return false;
 		}
 
@@ -244,9 +246,6 @@ class Proxy extends \OC_FileProxy {
 		// split the path parts
 		$pathParts = explode('/', $path);
 
-		// get relative path
-		$relativePath = \OCA\Encryption\Helper::stripUserFilesPath($path);
-
 		// FIXME: handling for /userId/cache used by webdav for chunking. The cache chunks are NOT encrypted
 		if (isset($pathParts[2]) && $pathParts[2] === 'cache') {
 			return $result;

apps/files_encryption/lib/stream.php

@@ -90,11 +90,14 @@ class Stream {
 			$this->rootView = new \OC_FilesystemView('/');
 		}
 
+		// rawPath is relative to the data directory
+		$this->rawPath = \OC\Files\Filesystem::normalizePath(str_replace('crypt://', '', $path));
+
 		$this->session = new \OCA\Encryption\Session($this->rootView);
 
 		$this->privateKey = $this->session->getPrivateKey();
 
-		$userId = Helper::getUser($path);
+		$userId = Helper::getUser($this->rawPath);
 
 		$util = new Util($this->rootView, $userId);
 
@@ -102,9 +105,6 @@ class Stream {
 		// public share key ID
 		$this->userId = $util->getUserId();
 
-		// rawPath is relative to the data directory
-		$this->rawPath = \OC\Files\Filesystem::normalizePath(str_replace('crypt://', '', $path));
-
 		// Strip identifier text from path, this gives us the path relative to data/<user>/files
 		$this->relPath = Helper::stripUserFilesPath($this->rawPath);
 		// if raw path doesn't point to a real file, check if it is a version or a file in the trash bin
@@ -518,7 +518,7 @@ class Stream {
 				$util = new Util($this->rootView, $userId);
 
 				// Get all users sharing the file includes current user
-				$uniqueUserIds = $util->getSharingUsersArray($sharingEnabled, $this->relPath, $this->userId);
+				$uniqueUserIds = $util->getSharingUsersArray($sharingEnabled, $this->relPath, $userId);
 				$checkedUserIds = $util->filterShareReadyUsers($uniqueUserIds);
 
 				// Fetch public keys for all sharing users
@@ -528,10 +528,10 @@ class Stream {
 				$this->encKeyfiles = Crypt::multiKeyEncrypt($this->plainKey, $publicKeys);
 
 				// Save the new encrypted file key
-				Keymanager::setFileKey($this->rootView, $this->relPath, $this->userId, $this->encKeyfiles['data']);
+				Keymanager::setFileKey($this->rootView, $util, $this->relPath, $userId, $this->encKeyfiles['data']);
 
 				// Save the sharekeys
-				Keymanager::setShareKeys($this->rootView, $this->relPath, $this->encKeyfiles['keys']);
+				Keymanager::setShareKeys($this->rootView, $util, $this->relPath, $this->encKeyfiles['keys']);
 
 				// Re-enable proxy - our work is done
 				\OC_FileProxy::$enabled = $proxyStatus;

apps/files_encryption/lib/util.php

@@ -1097,8 +1097,8 @@ class Util {
 		// Save the recrypted key to it's owner's keyfiles directory
 		// Save new sharekeys to all necessary user directory
 		if (
-			!Keymanager::setFileKey($this->view, $filePath, $fileOwner, $multiEncKey['data'])
-			|| !Keymanager::setShareKeys($this->view, $filePath, $multiEncKey['keys'])
+			!Keymanager::setFileKey($this->view, $this, $filePath, $fileOwner, $multiEncKey['data'])
+			|| !Keymanager::setShareKeys($this->view, $this, $filePath, $multiEncKey['keys'])
 		) {
 
 			\OCP\Util::writeLog('Encryption library',

apps/files_encryption/tests/keymanager.php

@@ -145,13 +145,15 @@ class Test_Encryption_Keymanager extends \PHPUnit_Framework_TestCase {
 
 		$file = 'unittest-' . time() . '.txt';
 
+		$util = new Encryption\Util($this->view, $this->userId);
+
 		// Disable encryption proxy to prevent recursive calls
 		$proxyStatus = \OC_FileProxy::$enabled;
 		\OC_FileProxy::$enabled = false;
 
 		$this->view->file_put_contents($this->userId . '/files/' . $file, $this->dataShort);
 
-		Encryption\Keymanager::setFileKey($this->view, $file, $this->userId, $key);
+		Encryption\Keymanager::setFileKey($this->view, $util, $file, $this->userId, $key);
 
 		$this->assertTrue($this->view->file_exists('/' . $this->userId . '/files_encryption/keyfiles/' . $file . '.key'));
 

apps/files_sharing/public.php

@@ -152,9 +152,6 @@ if (isset($path)) {
 		$tmpl->assign('sharingToken', $token);
 		$tmpl->assign('disableSharing', true);
 		$allowPublicUploadEnabled = (bool) ($linkItem['permissions'] & OCP\PERMISSION_CREATE);
-		if (\OCP\App::isEnabled('files_encryption')) {
-			$allowPublicUploadEnabled = false;
-		}
 		if (OC_Appconfig::getValue('core', 'shareapi_allow_public_upload', 'yes') === 'no') {
 			$allowPublicUploadEnabled = false;
 		}