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|
<?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 $providers=array();
/**
* register a new migration provider
* @param OC_Migrate_Provider $provider
*/
public static function registerProvider($provider){
self::$providers[]=$provider;
}
/**
* export app data for a user
* @param string userid
* @return string xml of app data
*/
public static function export($uid){
// Only export database users, otherwise we get chaos
if(OC_User_Database::userExists($uid)){
$data = array();
$data['userid'] = OC_User::getUser();
$query = OC_DB::prepare( "SELECT uid, password FROM *PREFIX*users WHERE uid LIKE ?" );
$result = $query->execute( array( $uid));
$row = $result->fetchRow();
if($row){
$data['hash'] = $row['password'];
} else {
return false;
exit();
}
foreach(self::$providers as $provider){
$data['apps'][$prodider->appid]['info'] = OC_App::getAppInfo($provider->appid);
$data['apps'][$provider->appid]['data'] = $provider->export($uid);
}
return self::indent(json_encode($data));
} else {
return false;
}
}
/**
* @breif imports a new user
* @param $data json data for the user
* @param $uid optional uid to use
* @return json reply
*/
public function import($data,$uid=null){
// Import the data
$data = json_decode($data);
if(is_null($data)){
// TODO LOG
return false;
exit();
}
// Specified user or use original
$uid = !is_null($uid) ? $uid : $data['userid'];
// Check if userid exists
if(OC_User::userExists($uid)){
// TODO LOG
return false;
exit();
}
// Create the user
$query = OC_DB::prepare( "INSERT INTO `*PREFIX*users` ( `uid`, `password` ) VALUES( ?, ? )" );
$result = $query->execute( array( $uid, $data['hash']));
if(!$result){
// TODO LOG
return false;
exit();
}
foreach($data['app'] as $app){
// Check if supports migration and is enabled
if(in_array($app, self::$providers)){
if(OC_App::isEnabled($app)){
$provider->import($data['app'][$app],$uid);
}
}
}
}
private static function indent($json){
$result = '';
$pos = 0;
$strLen = strlen($json);
$indentStr = ' ';
$newLine = "\n";
$prevChar = '';
$outOfQuotes = true;
for ($i=0; $i<=$strLen; $i++) {
// Grab the next character in the string.
$char = substr($json, $i, 1);
// Are we inside a quoted string?
if ($char == '"' && $prevChar != '\\') {
$outOfQuotes = !$outOfQuotes;
// If this character is the end of an element,
// output a new line and indent the next line.
} else if(($char == '}' || $char == ']') && $outOfQuotes) {
$result .= $newLine;
$pos --;
for ($j=0; $j<$pos; $j++) {
$result .= $indentStr;
}
}
// Add the character to the result string.
$result .= $char;
// If the last character was the beginning of an element,
// output a new line and indent the next line.
if (($char == ',' || $char == '{' || $char == '[') && $outOfQuotes) {
$result .= $newLine;
if ($char == '{' || $char == '[') {
$pos ++;
}
for ($j = 0; $j < $pos; $j++) {
$result .= $indentStr;
}
}
$prevChar = $char;
}
return $result;
}
}
|
