/** * @return bool */ public function stream_close() { $this->flush(); // if there is no valid private key return false if ($this->privateKey === false) { // cleanup if ($this->meta['mode'] !== 'r' && $this->meta['mode'] !== 'rb' && !$this->isLocalTmpFile) { // Disable encryption proxy to prevent recursive calls $proxyStatus = \OC_FileProxy::$enabled; \OC_FileProxy::$enabled = false; if ($this->rootView->file_exists($this->rawPath) && $this->size === 0) { $this->rootView->unlink($this->rawPath); } // Re-enable proxy - our work is done \OC_FileProxy::$enabled = $proxyStatus; } // if private key is not valid redirect user to a error page \OCA\Encryption\Helper::redirectToErrorPage($this->session); } if ($this->meta['mode'] !== 'r' && $this->meta['mode'] !== 'rb' && $this->isLocalTmpFile === false && $this->size > 0 && $this->unencryptedSize > 0) { // only write keyfiles if it was a new file if ($this->newFile === true) { // Disable encryption proxy to prevent recursive calls $proxyStatus = \OC_FileProxy::$enabled; \OC_FileProxy::$enabled = false; // Fetch user's public key $this->publicKey = Keymanager::getPublicKey($this->rootView, $this->keyId); // Check if OC sharing api is enabled $sharingEnabled = \OCP\Share::isEnabled(); $util = new Util($this->rootView, $this->userId); // Get all users sharing the file includes current user $uniqueUserIds = $util->getSharingUsersArray($sharingEnabled, $this->relPath); $checkedUserIds = $util->filterShareReadyUsers($uniqueUserIds); // Fetch public keys for all sharing users $publicKeys = Keymanager::getPublicKeys($this->rootView, $checkedUserIds['ready']); // Encrypt enc key for all sharing users $this->encKeyfiles = Crypt::multiKeyEncrypt($this->plainKey, $publicKeys); // Save the new encrypted file key Keymanager::setFileKey($this->rootView, $util, $this->relPath, $this->encKeyfiles['data']); // Save the sharekeys Keymanager::setShareKeys($this->rootView, $util, $this->relPath, $this->encKeyfiles['keys']); // Re-enable proxy - our work is done \OC_FileProxy::$enabled = $proxyStatus; } // we need to update the file info for the real file, not for the // part file. $path = Helper::stripPartialFileExtension($this->rawPath); // get file info $fileInfo = $this->rootView->getFileInfo($path); if (is_array($fileInfo)) { // set encryption data $fileInfo['encrypted'] = true; $fileInfo['size'] = $this->size; $fileInfo['unencrypted_size'] = $this->unencryptedSize; // set fileinfo $this->rootView->putFileInfo($path, $fileInfo); } } return fclose($this->handle); }
/** * fix the file size of the encrypted file * @param string $path absolute path * @return boolean true / false if file is encrypted */ public function fixFileSize($path) { $result = false; // Disable encryption proxy to prevent recursive calls $proxyStatus = \OC_FileProxy::$enabled; \OC_FileProxy::$enabled = false; $realSize = $this->getFileSize($path); if ($realSize > 0) { $cached = $this->view->getFileInfo($path); $cached['encrypted'] = true; // set the size $cached['unencrypted_size'] = $realSize; // put file info $this->view->putFileInfo($path, $cached); $result = true; } \OC_FileProxy::$enabled = $proxyStatus; return $result; }
/** * Sets the ETag * * @param string $etag * * @return int file id of updated file or -1 on failure */ public function setETag($etag) { return $this->fileView->putFileInfo($this->path, array('etag' => $etag)); }
/** * change file metadata * * @param string $path * @param array $data * @return int * * returns the fileid of the updated file */ public static function putFileInfo($path, $data) { return self::$defaultInstance->putFileInfo($path, $data); }
/** * @return bool */ public function stream_close() { $this->flush(); // if there is no valid private key return false if ($this->privateKey === false) { // cleanup if ($this->meta['mode'] !== 'r' && $this->meta['mode'] !== 'rb' && !$this->isLocalTmpFile) { // Disable encryption proxy to prevent recursive calls $proxyStatus = \OC_FileProxy::$enabled; \OC_FileProxy::$enabled = false; if ($this->rootView->file_exists($this->rawPath) && $this->size === 0) { fclose($this->handle); $this->rootView->unlink($this->rawPath); } // Re-enable proxy - our work is done \OC_FileProxy::$enabled = $proxyStatus; } // if private key is not valid redirect user to a error page Helper::redirectToErrorPage($this->session); } if ($this->meta['mode'] !== 'r' && $this->meta['mode'] !== 'rb' && $this->isLocalTmpFile === false && $this->size > 0 && $this->unencryptedSize > 0) { // only write keyfiles if it was a new file if ($this->newFile === true) { // Disable encryption proxy to prevent recursive calls $proxyStatus = \OC_FileProxy::$enabled; \OC_FileProxy::$enabled = false; // Fetch user's public key $this->publicKey = Keymanager::getPublicKey($this->rootView, $this->keyId); // Check if OC sharing api is enabled $sharingEnabled = \OCP\Share::isEnabled(); // Get all users sharing the file includes current user $uniqueUserIds = $this->util->getSharingUsersArray($sharingEnabled, $this->relPath); $checkedUserIds = $this->util->filterShareReadyUsers($uniqueUserIds); // Fetch public keys for all sharing users $publicKeys = Keymanager::getPublicKeys($this->rootView, $checkedUserIds['ready']); // Encrypt enc key for all sharing users $this->encKeyfiles = Crypt::multiKeyEncrypt($this->plainKey, $publicKeys); // Save the new encrypted file key Keymanager::setFileKey($this->rootView, $this->util, $this->relPath, $this->encKeyfiles['data']); // Save the sharekeys Keymanager::setShareKeys($this->rootView, $this->util, $this->relPath, $this->encKeyfiles['keys']); // Re-enable proxy - our work is done \OC_FileProxy::$enabled = $proxyStatus; } // we need to update the file info for the real file, not for the // part file. $path = Helper::stripPartialFileExtension($this->rawPath); $fileInfo = array('mimetype' => $this->rootView->getMimeType($this->rawPath), 'encrypted' => true, 'unencrypted_size' => $this->unencryptedSize); // if we write a part file we also store the unencrypted size for // the part file so that it can be re-used later $this->rootView->putFileInfo($this->rawPath, $fileInfo); if ($path !== $this->rawPath) { $this->rootView->putFileInfo($path, $fileInfo); } } $result = fclose($this->handle); if ($result === false) { \OCP\Util::writeLog('Encryption library', 'Could not close stream, file could be corrupted', \OCP\Util::FATAL); } return $result; }