2012-02-04 00:32:06 +04:00
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<?php
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/**
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* ownCloud
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*
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* @author Tom Needham
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* @copyright 2012 Tom Needham tom@owncloud.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* provides an interface to all search providers
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*/
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class OC_Migrate{
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2012-03-10 03:33:11 +04:00
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static private $MDB2=false;
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2012-02-04 01:00:12 +04:00
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static private $providers=array();
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2012-03-10 03:33:11 +04:00
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static private $schema=false;
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2012-03-10 22:18:58 +04:00
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static private $uid=false;
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2012-03-13 01:41:32 +04:00
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static private $database=false;
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2012-02-04 00:32:06 +04:00
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/**
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* register a new migration provider
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* @param OC_Migrate_Provider $provider
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*/
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public static function registerProvider($provider){
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self::$providers[]=$provider;
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}
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/**
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2012-03-10 03:33:11 +04:00
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* @breif creates a migration.db in the users data dir with their app data in
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* @param @uid string userid of the user to export for
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* @return bool whether operation was successfull
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2012-02-04 00:32:06 +04:00
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*/
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2012-03-10 03:33:11 +04:00
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public static function export( $uid ){
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2012-03-12 02:09:16 +04:00
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2012-03-03 21:30:21 +04:00
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// Only export database users, otherwise we get chaos
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2012-03-10 03:33:11 +04:00
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if(!OC_User_Database::userExists( $uid )){
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return false;
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}
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2012-03-10 22:18:58 +04:00
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self::$uid = $uid;
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2012-03-12 02:09:16 +04:00
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if(empty(self::$uid)){
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OC_Log::write('migration','Invalid uid passed',OC_Log::FATAL);
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return false;
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exit();
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}
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2012-03-10 22:18:58 +04:00
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self::connectDB();
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$ok = true;
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$return = array();
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2012-03-10 03:33:11 +04:00
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// Foreach provider
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2012-03-10 22:18:58 +04:00
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foreach( self::$providers as $provider ){
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2012-03-12 22:40:14 +04:00
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$failed = false;
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// Does this app use the database?
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2012-03-10 22:18:58 +04:00
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if(file_exists(OC::$SERVERROOT.'/apps/'.$provider->id.'/appinfo/database.xml')){
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2012-03-12 22:40:14 +04:00
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// Create some app tables
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$tables = self::createAppTables( $provider->id );
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if( is_array( $tables ) ){
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// Save the table names
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foreach($tables as $table){
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$return['app'][$provider->id]['tables'][] = $table;
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}
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} else {
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// It failed to create the tables
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$failed = true;
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}
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2012-03-10 22:18:58 +04:00
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}
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2012-03-12 22:40:14 +04:00
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// Run the import function?
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if( !$failed ){
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$return['app'][$provider->id]['success'] = $provider->export( $uid );
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2012-03-12 02:09:16 +04:00
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} else {
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2012-03-12 22:40:14 +04:00
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$return['app'][$provider->id]['success'] = false;
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$return['app'][$provider->id]['message'] = 'failed to create the app tables';
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2012-03-10 22:18:58 +04:00
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}
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2012-03-12 22:40:14 +04:00
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// Now add some app info the the return array
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$appinfo = OC_App::getAppInfo( $provider->id );
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$return['app'][$provider->id]['version'] = $appinfo['version'];
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2012-03-10 03:33:11 +04:00
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}
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2012-03-12 22:40:14 +04:00
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// Add some general info to the return array
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$return['migrateinfo']['uid'] = $uid;
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$return['migrateinfo']['ocversion'] = OC_Util::getVersionString();
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2012-03-10 03:33:11 +04:00
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2012-03-10 22:18:58 +04:00
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return $return;
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2012-03-10 03:33:11 +04:00
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}
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/**
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* @breif imports a new user
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2012-03-13 01:41:32 +04:00
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* @param $db string path to migration.db
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* @param $migrateinfo string path to the migration info json file
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2012-03-10 03:33:11 +04:00
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* @param $uid optional uid to use
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* @return bool if the import succedded
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*/
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2012-03-13 01:41:32 +04:00
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public static function import( $db, $migrateinfo, $uid=false ){
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2012-03-12 02:09:16 +04:00
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if(!self::$uid){
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OC_Log::write('migration','Tried to import without passing a uid',OC_Log::FATAL);
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return false;
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exit();
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}
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2012-03-13 01:41:32 +04:00
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// Check if the db exists
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if( file_exists( $db ) ){
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// Connect to the db
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if(!self::connectDB( $db )){
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return false;
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exit();
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}
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} else {
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OC_Log::write('migration','Migration.db not found at: '.$db, OC_Log::FATAL );
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return false;
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exit();
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}
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// Load the json info
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if( file_exists( $migrateinfo ) ){
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} else {
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OC_Log::write( 'migration', 'Migration information file not found at: '.$migrateinfo, OC_Log::FATAL );
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return false;
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exit();
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2012-03-10 03:33:11 +04:00
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}
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2012-03-13 01:41:32 +04:00
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// Process migration info
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$info = file_get_contents( $migrateinfo );
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$info = json_decode( $info );
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// Set the user id
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self::$uid = !$uid : $info['migrateinfo']['uid'] ? $uid;
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2012-03-10 03:33:11 +04:00
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// Create the user
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if(!self::createUser($uid, $hash)){
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return false;
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2012-03-13 01:41:32 +04:00
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exit();
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}
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$apps = $info['apps'];
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foreach( self::$providers as $provider){
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// Is the app in the export?
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if( array_key_exists( $provider->id, $apps ) ){
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// Did it succeed?
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if( $app[$provider->id] ){
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// Then do the import
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$provider->import();
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}
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}
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2012-03-10 03:33:11 +04:00
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}
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2012-03-10 22:18:58 +04:00
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return true;
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2012-03-10 03:33:11 +04:00
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}
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2012-03-03 21:30:21 +04:00
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2012-03-10 03:33:11 +04:00
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// @breif connects to migration.db, or creates if not found
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2012-03-13 01:41:32 +04:00
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// @param $db optional path to migration.db, defaults to user data dir
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2012-03-10 03:33:11 +04:00
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// @return bool whether the operation was successful
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2012-03-13 01:41:32 +04:00
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private static function connectDB( $db=null ){
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2012-03-12 02:09:16 +04:00
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OC_Log::write('migration','connecting to migration.db for user: '.self::$uid,OC_Log::INFO);
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// Fail if no user is set
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if(!self::$uid){
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OC_Log::write('migration','connectDB() called without self::$uid being set',OC_Log::INFO);
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return false;
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}
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2012-03-10 03:33:11 +04:00
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// Already connected
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if(!self::$MDB2){
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require_once('MDB2.php');
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2012-03-13 01:41:32 +04:00
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self::$database = !is_null( $db ) ? $db : $datadir.'/'.self::$uid.'/migration.db';
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2012-03-10 22:18:58 +04:00
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$datadir = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
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2012-03-10 03:33:11 +04:00
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// Prepare options array
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$options = array(
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'portability' => MDB2_PORTABILITY_ALL & (!MDB2_PORTABILITY_FIX_CASE),
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'log_line_break' => '<br>',
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'idxname_format' => '%s',
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'debug' => true,
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'quote_identifier' => true
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);
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$dsn = array(
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2012-03-10 22:18:58 +04:00
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'phptype' => 'sqlite3',
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2012-03-13 01:41:32 +04:00
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'database' => self::$database,
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2012-03-10 03:33:11 +04:00
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'mode' => '0644'
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);
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// Try to establish connection
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self::$MDB2 = MDB2::factory( $dsn, $options );
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// Die if we could not connect
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if( PEAR::isError( self::$MDB2 )){
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2012-03-10 22:18:58 +04:00
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die(self::$MDB2->getMessage());
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2012-03-12 02:09:16 +04:00
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OC_Log::write('migration', 'Failed to create/connect to migration.db',OC_Log::FATAL);
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2012-03-10 03:33:11 +04:00
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OC_Log::write('migration',self::$MDB2->getUserInfo(),OC_Log::FATAL);
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OC_Log::write('migration',self::$MDB2->getMessage(),OC_Log::FATAL);
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2012-03-03 21:30:21 +04:00
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return false;
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2012-03-10 22:18:58 +04:00
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} else {
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2012-03-03 21:30:21 +04:00
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}
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2012-03-10 03:33:11 +04:00
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// We always, really always want associative arrays
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self::$MDB2->setFetchMode(MDB2_FETCHMODE_ASSOC);
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}
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return true;
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}
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2012-03-03 21:30:21 +04:00
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2012-03-10 03:33:11 +04:00
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// @breif prepares the db
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// @param $query the sql query to prepare
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2012-03-10 19:52:38 +04:00
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public static function prepare( $query ){
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2012-03-10 03:33:11 +04:00
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// Optimize the query
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$query = self::processQuery( $query );
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// Optimize the query
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$query = self::$MDB2->prepare( $query );
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// Die if we have an error (error means: bad query, not 0 results!)
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if( PEAR::isError( $query )) {
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$entry = 'DB Error: "'.$result->getMessage().'"<br />';
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$entry .= 'Offending command was: '.$query.'<br />';
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OC_Log::write('migration',$entry,OC_Log::FATAL);
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return false;
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} else {
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2012-03-10 22:18:58 +04:00
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return $query;
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2012-03-10 03:33:11 +04:00
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}
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}
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2012-03-03 21:30:21 +04:00
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2012-03-10 03:33:11 +04:00
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// @breif processes the db query
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// @param $query the query to process
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// @return string of processed query
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private static function processQuery( $query ){
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2012-03-03 21:30:21 +04:00
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2012-03-10 03:33:11 +04:00
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self::connectDB();
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$prefix = '';
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$query = str_replace( '`', '\'', $query );
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$query = str_replace( 'NOW()', 'datetime(\'now\')', $query );
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$query = str_replace( 'now()', 'datetime(\'now\')', $query );
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// replace table name prefix
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$query = str_replace( '*PREFIX*', $prefix, $query );
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return $query;
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}
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2012-03-10 19:52:38 +04:00
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// @brief copys rows to migration.db from the main database
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// @param $options array of options.
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// @return bool
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public static function copyRows( $options ){
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if( !array_key_exists( 'table', $options ) ){
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return false;
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}
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2012-03-12 02:09:16 +04:00
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$return = array();
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2012-03-10 19:52:38 +04:00
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// Need to include 'where' in the query?
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if( array_key_exists( 'matchval', $options ) && array_key_exists( 'matchcol', $options ) ){
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2012-03-10 22:18:58 +04:00
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// If only one matchval, create an array
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if(!is_array($options['matchval'])){
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$options['matchval'] = array( $options['matchval'] );
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}
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2012-03-10 19:52:38 +04:00
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foreach( $options['matchval'] as $matchval ){
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// Run the query for this match value (where x = y value)
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$query = OC_DB::prepare( "SELECT * FROM *PREFIX*" . $options['table'] . " WHERE " . $options['matchcol'] . " LIKE ?" );
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$results = $query->execute( array( $matchval ) );
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2012-03-12 02:13:50 +04:00
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$newreturns = self::insertData( $results, $options );
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$return = array_merge( $return, $newreturns );
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2012-03-10 19:52:38 +04:00
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}
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} else {
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// Just get everything
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$query = OC_DB::prepare( "SELECT * FROM *PREFIX*" . $options['table'] );
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$results = $query->execute();
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2012-03-12 02:09:16 +04:00
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$return = self::insertData( $results, $options );
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2012-03-10 19:52:38 +04:00
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}
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2012-03-12 02:09:16 +04:00
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return $return;
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2012-03-10 19:52:38 +04:00
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}
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// @breif saves a sql data set into migration.db
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// @param $data a sql data set returned from self::prepare()->query()
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// @param $options array of copyRows options
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// @return void
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private static function insertData( $data, $options ){
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2012-03-12 02:09:16 +04:00
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$return = array();
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2012-03-10 22:18:58 +04:00
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while( $row = $data->fetchRow() ){
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2012-03-10 19:52:38 +04:00
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// Now save all this to the migration.db
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2012-03-12 02:09:16 +04:00
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$fields = array();
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$values = array();
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2012-03-10 19:52:38 +04:00
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foreach($row as $field=>$value){
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$fields[] = $field;
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$values[] = $value;
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}
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// Generate some sql
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2012-03-10 22:18:58 +04:00
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$sql = "INSERT INTO `" . $options['table'] . '` ( `';
|
2012-03-10 19:52:38 +04:00
|
|
|
$fieldssql = implode( '`, `', $fields );
|
|
|
|
$sql .= $fieldssql . "` ) VALUES( ";
|
2012-03-10 22:18:58 +04:00
|
|
|
$valuessql = substr( str_repeat( '?, ', count( $fields ) ),0,-2 );
|
2012-03-10 19:52:38 +04:00
|
|
|
$sql .= $valuessql . " )";
|
|
|
|
// Make the query
|
|
|
|
$query = self::prepare( $sql );
|
2012-03-10 22:18:58 +04:00
|
|
|
if(!$query){
|
|
|
|
OC_Log::write('migration','Invalid sql produced: '.$sql,OC_Log::FATAL);
|
2012-03-12 02:09:16 +04:00
|
|
|
return false;
|
|
|
|
exit();
|
2012-03-10 22:18:58 +04:00
|
|
|
} else {
|
|
|
|
$query->execute( $values );
|
2012-03-12 02:09:16 +04:00
|
|
|
// Do we need to return some values?
|
|
|
|
if( array_key_exists( 'idcol', $options ) ){
|
|
|
|
// Yes we do
|
|
|
|
$return[] = $row[$options['idcol']];
|
|
|
|
} else {
|
|
|
|
// Take a guess and return the first field :)
|
|
|
|
$return[] = reset($row);
|
|
|
|
}
|
2012-03-10 22:18:58 +04:00
|
|
|
}
|
2012-03-10 19:52:38 +04:00
|
|
|
}
|
2012-03-12 02:09:16 +04:00
|
|
|
return $return;
|
2012-03-10 19:52:38 +04:00
|
|
|
}
|
|
|
|
|
2012-03-10 03:33:11 +04:00
|
|
|
// @breif creates the tables in migration.db from an apps database.xml
|
|
|
|
// @param $appid string id of the app
|
|
|
|
// @return bool whether the operation was successful
|
|
|
|
private static function createAppTables( $appid ){
|
|
|
|
|
2012-03-12 22:40:14 +04:00
|
|
|
if(!self::connectScheme()){
|
2012-03-03 21:30:21 +04:00
|
|
|
return false;
|
2012-02-04 00:32:06 +04:00
|
|
|
}
|
2012-03-12 22:40:14 +04:00
|
|
|
|
|
|
|
// There is a database.xml file
|
|
|
|
$content = file_get_contents( OC::$SERVERROOT . '/apps/' . $appid . '/appinfo/database.xml' );
|
|
|
|
|
|
|
|
$file2 = 'static://db_scheme';
|
|
|
|
$content = str_replace( '*dbname*', self::$uid.'/migration', $content );
|
|
|
|
$content = str_replace( '*dbprefix*', '', $content );
|
|
|
|
|
|
|
|
$xml = new SimpleXMLElement($content);
|
|
|
|
foreach($xml->table as $table){
|
|
|
|
$tables[] = (string)$table->name;
|
|
|
|
}
|
|
|
|
|
|
|
|
file_put_contents( $file2, $content );
|
|
|
|
|
|
|
|
// Try to create tables
|
|
|
|
$definition = self::$schema->parseDatabaseDefinitionFile( $file2 );
|
|
|
|
|
|
|
|
unlink( $file2 );
|
|
|
|
|
|
|
|
// Die in case something went wrong
|
|
|
|
if( $definition instanceof MDB2_Schema_Error ){
|
|
|
|
OC_Log::write('migration','Failed to parse database.xml for: '.$appid,OC_Log::FATAL);
|
|
|
|
OC_Log::write('migration',$definition->getMessage().': '.$definition->getUserInfo(),OC_Log::FATAL);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
$definition['overwrite'] = true;
|
|
|
|
|
|
|
|
$ret = self::$schema->createDatabase( $definition );
|
|
|
|
// Die in case something went wrong
|
|
|
|
|
|
|
|
if( $ret instanceof MDB2_Error ){
|
|
|
|
OC_Log::write('migration','Failed to create tables for: '.$appid,OC_Log::FATAL);
|
|
|
|
OC_Log::write('migration',$ret->getMessage().': '.$ret->getUserInfo(),OC_Log::FATAL);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return $tables;
|
|
|
|
|
2012-02-04 00:32:06 +04:00
|
|
|
}
|
|
|
|
|
2012-03-10 03:33:11 +04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* @brief connects to a MDB2 database scheme
|
|
|
|
* @returns true/false
|
|
|
|
*
|
|
|
|
* Connects to a MDB2 database scheme
|
2012-03-03 21:30:21 +04:00
|
|
|
*/
|
2012-03-10 03:33:11 +04:00
|
|
|
private static function connectScheme(){
|
|
|
|
// We need a mdb2 database connection
|
|
|
|
self::connectDB();
|
|
|
|
self::$MDB2->loadModule( 'Manager' );
|
|
|
|
self::$MDB2->loadModule( 'Reverse' );
|
|
|
|
|
|
|
|
// Connect if this did not happen before
|
|
|
|
if( !self::$schema ){
|
|
|
|
require_once('MDB2/Schema.php');
|
|
|
|
self::$schema=MDB2_Schema::factory( self::$MDB2 );
|
2012-03-03 21:30:21 +04:00
|
|
|
}
|
|
|
|
|
2012-03-10 03:33:11 +04:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// @breif creates a new user in the database
|
|
|
|
// @param $uid string user_id of the user to be created
|
|
|
|
// @param $hash string hash of the user to be created
|
|
|
|
// @return bool result of user creation
|
|
|
|
private static function createUser( $uid, $hash ){
|
|
|
|
|
|
|
|
// Check if userid exists
|
|
|
|
if(OC_User::userExists( $uid )){
|
|
|
|
return false;
|
2012-03-03 21:30:21 +04:00
|
|
|
}
|
|
|
|
|
2012-03-10 03:33:11 +04:00
|
|
|
// Create the user
|
|
|
|
$query = OC_DB::prepare( "INSERT INTO `*PREFIX*users` ( `uid`, `password` ) VALUES( ?, ? )" );
|
|
|
|
$result = $query->execute( array( $uid, $data['hash']));
|
2012-03-13 01:41:32 +04:00
|
|
|
if( !$result ){
|
|
|
|
OC_Log::write('migration', 'Failed to create the new user "'.$uid."");
|
|
|
|
}
|
2012-03-10 03:33:11 +04:00
|
|
|
return $result ? true : false;
|
|
|
|
|
|
|
|
}
|
2012-03-03 21:30:21 +04:00
|
|
|
|
2012-02-04 00:32:06 +04:00
|
|
|
}
|