<commit_before><?php

/**
 * ownCloud
 *
 * @author <NAME>
 * @copyright 2012 <NAME> <EMAIL>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Encryption;

/**
 * Class for hook specific logic
 */

class Hooks {

	// TODO: use passphrase for encrypting private key that is separate to 
	// the login password

	/**
	 * @brief Startup encryption backend upon user login
	 * @note This method should never be called for users using client side encryption
	 */
	public static function login( $params ) {
	
		// Manually initialise Filesystem{} singleton with correct 
		// fake root path, in order to avoid fatal webdav errors
		\OC\Files\Filesystem::init( $params['uid'], '/' . 'files' . '/' );
	
		$view = new \OC_FilesystemView( '/' );

		$util = new Util( $view, $params['uid'] );
		
		// Check files_encryption infrastructure is ready for action
		if ( ! $util->ready() ) {
			
			\OC_Log::write( 'Encryption library', 'User account "' . $params['uid'] . '" is not ready for encryption; configuration started', \OC_Log::DEBUG );
			
			return $util->setupServerSide( $params['password'] );

		}
	
		\OC_FileProxy::$enabled = false;
		
		$encryptedKey = Keymanager::getPrivateKey( $view, $params['uid'] );
		
		\OC_FileProxy::$enabled = true;
		
		$privateKey = Crypt::symmetricDecryptFileContent( $encryptedKey, $params['password'] );
		
		$session = new Session( $view );
		
		$session->setPrivateKey( $privateKey, $params['uid'] );
		
		$view1 = new \OC_FilesystemView( '/' . $params['uid'] );
		
		// Set legacy encryption key if it exists, to support 
		// depreciated encryption system
		if ( 
			$view1->file_exists( 'encryption.key' )
			&& $encLegacyKey = $view1->file_get_contents( 'encryption.key' ) 
		) {
		
			$plainLegacyKey = Crypt::legacyDecrypt( $encLegacyKey, $params['password'] );
			
			$session->setLegacyKey( $plainLegacyKey );
		
		}
		
		\OC_FileProxy::$enabled = false;
		
		$publicKey = Keymanager::getPublicKey( $view, $params['uid'] );
		
		\OC_FileProxy::$enabled = false;
		
		// Encrypt existing user files:
		// This serves to upgrade old versions of the encryption
		// app (see appinfo/spec.txt)
		if ( 
			$util->encryptAll( $publicKey,  '/' . $params['uid'] . '/' . 'files', $session->getLegacyKey(), $params['password'] )
		) {
			
			\OC_Log::write( 
				'Encryption library', 'Encryption of existing files belonging to "' . $params['uid'] . '" started at login'
				, \OC_Log::INFO 
			);
		
		}

		return true;<commit_msg>fixed webdav errors, now webdav up - and downloads are full working<commit_after><?php

/**
 * ownCloud
 *
 * @author <NAME>
 * @copyright 2012 <NAME> <EMAIL>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Encryption;

/**
 * Class for hook specific logic
 */

class Hooks {

	// TODO: use passphrase for encrypting private key that is separate to 
	// the login password

	/**
	 * @brief Startup encryption backend upon user login
	 * @note This method should never be called for users using client side encryption
	 */
	public static function login( $params ) {
	
		// Manually initialise Filesystem{} singleton with correct 
		// fake root path, in order to avoid fatal webdav errors
        // NOTE: disabled because this give errors on webdav!
		//\OC\Files\Filesystem::init( $params['uid'], '/' . 'files' . '/' );
	
		$view = new \OC_FilesystemView( '/' );

		$util = new Util( $view, $params['uid'] );
		
		// Check files_encryption infrastructure is ready for action
		if ( ! $util->ready() ) {
			
			\OC_Log::write( 'Encryption library', 'User account "' . $params['uid'] . '" is not ready for encryption; configuration started', \OC_Log::DEBUG );
			
			return $util->setupServerSide( $params['password'] );

		}
	
		\OC_FileProxy::$enabled = false;
		
		$encryptedKey = Keymanager::getPrivateKey( $view, $params['uid'] );
		
		\OC_FileProxy::$enabled = true;
		
		$privateKey = Crypt::symmetricDecryptFileContent( $encryptedKey, $params['password'] );
		
		$session = new Session( $view );
		
		$session->setPrivateKey( $privateKey, $params['uid'] );

        //FIXME: disabled because it gets called each time a user do an operation on iPhone
        //FIXME: we need a better place doing this and maybe only one time or by user
		/*$view1 = new \OC_FilesystemView( '/' . $params['uid'] );
		
		// Set legacy encryption key if it exists, to support 
		// depreciated encryption system
		if ( 
			$view1->file_exists( 'encryption.key' )
			&& $encLegacyKey = $view1->file_get_contents( 'encryption.key' ) 
		) {
		
			$plainLegacyKey = Crypt::legacyDecrypt( $encLegacyKey, $params['password'] );
			
			$session->setLegacyKey( $plainLegacyKey );
		
		}
		
		\OC_FileProxy::$enabled = false;
		
		$publicKey = Keymanager::getPublicKey( $view, $params['uid'] );
		
		\OC_FileProxy::$enabled = false;*/
		
		// Encrypt existing user files:
		// This serves to upgrade old versions of the encryption
		// app (see appinfo/spec.txt)
		/*if (
			$util->encryptAll( $publicKey,  '/' . $params['uid'] . '/' . 'files', $session->getLegacyKey(), $params['password'] )
		) {
			
			\OC_Log::write( 
				'Encryption library', 'Encryption of existing files belonging to "' . $params['uid'] . '" started at login'
				, \OC_Log::INFO 
			);
		
		}*/

		return true;
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