create keypair for ownCloud with empty passphrase, will be used for public link shares

1 files changed, 28 insertions, 0 deletions

diff --git a/apps/files_encryption/lib/session.php b/apps/files_encryption/lib/session.php
index 769a40b359f..ebf7edcd715 100644
--- a/apps/files_encryption/lib/session.php
+++ b/apps/files_encryption/lib/session.php
@@ -27,6 +27,34 @@ namespace OCA\Encryption;
  */
 
 class Session {
+	
+	/**
+	 * @brief if session is started, check if ownCloud key pair is set up, if not create it
+	 * 
+	 * The ownCloud key pair is used to allow public link sharing even if encryption is enabled
+	 */
+	public function __construct() {
+		$view = new \OC\Files\View('/');
+		if (!$view->is_dir('owncloud_private_key')) {
+			$view->mkdir('owncloud_private_key');
+		}
+		
+		if (!$view->file_exists("/public-keys/owncloud.public.key") || !$view->file_exists("/owncloud_private_key/owncloud.private.key") ) {
+			
+			$keypair = Crypt::createKeypair();
+			
+			\OC_FileProxy::$enabled = false;
+			// Save public key
+			$view->file_put_contents( '/public-keys/owncloud.public.key', $keypair['publicKey'] );
+			// Encrypt private key empthy passphrase
+			$encryptedPrivateKey = Crypt::symmetricEncryptFileContent( $keypair['privateKey'], '' );
+			// Save private key
+			error_log("encrypted private key: " . $encryptedPrivateKey );
+			$view->file_put_contents( '/owncloud_private_key/owncloud.private.key', $encryptedPrivateKey );
+			
+			\OC_FileProxy::$enabled = true;
+		}
+	}
 
 	/**
 	 * @brief Sets user private key to session