264 lines
6.9 KiB
PHP
264 lines
6.9 KiB
PHP
<?php
|
|
/**
|
|
* ownCloud
|
|
*
|
|
* @author Tom Needham
|
|
* @copyright 2012 Tom Needham tom@owncloud.com
|
|
*
|
|
* 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/>.
|
|
*
|
|
*/
|
|
|
|
|
|
/**
|
|
* provides an interface to all search providers
|
|
*/
|
|
class OC_Migrate{
|
|
|
|
static private $MDB2=false;
|
|
static private $providers=array();
|
|
static private $schema=false;
|
|
|
|
/**
|
|
* register a new migration provider
|
|
* @param OC_Migrate_Provider $provider
|
|
*/
|
|
public static function registerProvider($provider){
|
|
self::$providers[]=$provider;
|
|
}
|
|
|
|
/**
|
|
* @breif creates a migration.db in the users data dir with their app data in
|
|
* @param @uid string userid of the user to export for
|
|
* @return bool whether operation was successfull
|
|
*/
|
|
public static function export( $uid ){
|
|
|
|
// Only export database users, otherwise we get chaos
|
|
if(!OC_User_Database::userExists( $uid )){
|
|
return false;
|
|
}
|
|
|
|
// Foreach provider
|
|
foreach( $providers as $provider ){
|
|
|
|
self::createAppTables( $provider->id );
|
|
// Run the export function
|
|
$provider->export( $uid );
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
/**
|
|
* @breif imports a new user
|
|
* @param $uid optional uid to use
|
|
* @return bool if the import succedded
|
|
*/
|
|
public static function import( $uid=null ){
|
|
|
|
self::$uid = $uid;
|
|
|
|
// Connect to the db
|
|
if(!self::connectDB()){
|
|
return false;
|
|
}
|
|
|
|
// Create the user
|
|
if(!self::createUser($uid, $hash)){
|
|
return false;
|
|
}
|
|
|
|
// Now get the list of apps to import from migration.db
|
|
// Then check for migrate.php for these apps
|
|
// If present, run the import function for them.
|
|
|
|
return treu;
|
|
|
|
}
|
|
|
|
// @breif connects to migration.db, or creates if not found
|
|
// @return bool whether the operation was successful
|
|
private static function connectDB(){
|
|
|
|
// Already connected
|
|
if(!self::$MDB2){
|
|
require_once('MDB2.php');
|
|
|
|
$datadir = OC_Config::getValue( "datadirectory", "$SERVERROOT/data" );
|
|
|
|
// Prepare options array
|
|
$options = array(
|
|
'portability' => MDB2_PORTABILITY_ALL & (!MDB2_PORTABILITY_FIX_CASE),
|
|
'log_line_break' => '<br>',
|
|
'idxname_format' => '%s',
|
|
'debug' => true,
|
|
'quote_identifier' => true
|
|
);
|
|
$dsn = array(
|
|
'phptype' => 'sqlite',
|
|
'database' => $datadir.'/'.self::$uid.'/migration.db',
|
|
'mode' => '0644'
|
|
);
|
|
|
|
// Try to establish connection
|
|
self::$MDB2 = MDB2::factory( $dsn, $options );
|
|
|
|
// Die if we could not connect
|
|
if( PEAR::isError( self::$MDB2 )){
|
|
OC_Log::write('migration', 'Failed to create migration.db',OC_Log::FATAL);
|
|
OC_Log::write('migration',self::$MDB2->getUserInfo(),OC_Log::FATAL);
|
|
OC_Log::write('migration',self::$MDB2->getMessage(),OC_Log::FATAL);
|
|
return false;
|
|
}
|
|
|
|
// We always, really always want associative arrays
|
|
self::$MDB2->setFetchMode(MDB2_FETCHMODE_ASSOC);
|
|
}
|
|
return true;
|
|
|
|
}
|
|
|
|
// @breif prepares the db
|
|
// @param $query the sql query to prepare
|
|
public static function prepareDB( $query ){
|
|
|
|
// Optimize the query
|
|
$query = self::processQuery( $query );
|
|
|
|
// Optimize the query
|
|
$query = self::$MDB2->prepare( $query );
|
|
|
|
// Die if we have an error (error means: bad query, not 0 results!)
|
|
if( PEAR::isError( $query )) {
|
|
$entry = 'DB Error: "'.$result->getMessage().'"<br />';
|
|
$entry .= 'Offending command was: '.$query.'<br />';
|
|
OC_Log::write('migration',$entry,OC_Log::FATAL);
|
|
return false;
|
|
} else {
|
|
return true;
|
|
}
|
|
|
|
}
|
|
|
|
// @breif processes the db query
|
|
// @param $query the query to process
|
|
// @return string of processed query
|
|
private static function processQuery( $query ){
|
|
|
|
self::connectDB();
|
|
$type = 'sqlite';
|
|
$prefix = '';
|
|
|
|
$query = str_replace( '`', '\'', $query );
|
|
$query = str_replace( 'NOW()', 'datetime(\'now\')', $query );
|
|
$query = str_replace( 'now()', 'datetime(\'now\')', $query );
|
|
|
|
// replace table name prefix
|
|
$query = str_replace( '*PREFIX*', $prefix, $query );
|
|
|
|
return $query;
|
|
|
|
}
|
|
|
|
// @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 ){
|
|
$file = OC::$SERVERROOT.'/apps/'.$appid.'appinfo/database.xml';
|
|
if(file_exists( $file )){
|
|
// There is a database.xml file
|
|
$content = file_get_contents( $file );
|
|
|
|
$file2 = 'static://db_scheme';
|
|
$content = str_replace( '*dbname*', 'migration', $content );
|
|
$content = str_replace( '*dbprefix*', '', $content );
|
|
|
|
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 true;
|
|
|
|
} else {
|
|
// No database.xml
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief connects to a MDB2 database scheme
|
|
* @returns true/false
|
|
*
|
|
* Connects to a MDB2 database scheme
|
|
*/
|
|
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 );
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// Create the user
|
|
$query = OC_DB::prepare( "INSERT INTO `*PREFIX*users` ( `uid`, `password` ) VALUES( ?, ? )" );
|
|
$result = $query->execute( array( $uid, $data['hash']));
|
|
|
|
return $result ? true : false;
|
|
|
|
}
|
|
|
|
}
|