669 lines
18 KiB
PHP
669 lines
18 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Frank Karlitschek
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* @copyright 2010 Frank Karlitschek karlitschek@kde.org
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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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// set some stuff
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//ob_start();
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// error_reporting(E_ALL | E_STRICT);
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error_reporting( E_ERROR | E_PARSE | E_WARNING ); // MDB2 gives loads of strict error, disabling for now
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date_default_timezone_set('Europe/Berlin');
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ini_set('arg_separator.output','&');
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ini_set('session.cookie_httponly','1;');
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session_start();
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// calculate the documentroot
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$SERVERROOT=substr(__FILE__,0,-13);
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$DOCUMENTROOT=realpath($_SERVER['DOCUMENT_ROOT']);
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$SERVERROOT=str_replace("\\",'/',$SERVERROOT);
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$SUBURI=substr(realpath($_SERVER["SCRIPT_FILENAME"]),strlen($SERVERROOT));
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$WEBROOT=substr($_SERVER["SCRIPT_NAME"],0,strlen($_SERVER["SCRIPT_NAME"])-strlen($SUBURI));
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if($WEBROOT!='' and $WEBROOT[0]!=='/'){
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$WEBROOT='/'.$WEBROOT;
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}
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// set the right include path
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set_include_path($SERVERROOT.'/lib'.PATH_SEPARATOR.$SERVERROOT.'/config'.PATH_SEPARATOR.$SERVERROOT.'/3dparty'.PATH_SEPARATOR.get_include_path().PATH_SEPARATOR.$SERVERROOT);
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// define runtime variables - unless this already has been done
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if( !isset( $RUNTIME_NOSETUPFS )){
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$RUNTIME_NOSETUPFS = false;
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}
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// define default config values
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$CONFIG_INSTALLED=false;
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$CONFIG_DATADIRECTORY=$SERVERROOT.'/data';
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$CONFIG_BACKUPDIRECTORY=$SERVERROOT.'/backup';
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$CONFIG_HTTPFORCESSL=false;
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$CONFIG_ENABLEBACKUP=false;
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$CONFIG_DATEFORMAT='j M Y G:i';
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$CONFIG_DBNAME='owncloud';
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$CONFIG_DBTYPE='sqlite';
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$CONFIG_FILESYSTEM=array();
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// include the generated configfile
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@include_once($SERVERROOT.'/config/config.php');
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$CONFIG_DATADIRECTORY_ROOT=$CONFIG_DATADIRECTORY;// store this in a seperate variable so we can change the data directory to jail users.
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// redirect to https site if configured
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if(isset($CONFIG_HTTPFORCESSL) and $CONFIG_HTTPFORCESSL){
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if(!isset($_SERVER['HTTPS']) or $_SERVER['HTTPS'] != 'on') {
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$url = "https://". $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI'];
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header("Location: $url");
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exit;
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}
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}
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// load core libs
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require_once('helper.php');
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require_once('app.php');
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require_once('files.php');
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require_once('filesystem.php');
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require_once('filestorage.php');
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require_once('fileobserver.php');
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require_once('log.php');
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require_once('config.php');
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require_once('user.php');
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require_once('group.php');
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require_once('ocs.php');
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require_once('connect.php');
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require_once('remotestorage.php');
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require_once('plugin.php');
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OC_PLUGIN::loadPlugins( "" );
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if(!isset($CONFIG_BACKEND)){
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$CONFIG_BACKEND='database';
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}
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OC_USER::setBackend( $CONFIG_BACKEND );
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OC_GROUP::setBackend( $CONFIG_BACKEND );
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// Set up file system unless forbidden
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if( !$RUNTIME_NOSETUPFS ){
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OC_UTIL::setupFS();
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}
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// Add the stuff we need always
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OC_APP::addPersonalMenuEntry( array( "order" => 1000, "href" => OC_HELPER::linkTo( "", "index.php?logout=1" ), "name" => "Logout" ));
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OC_UTIL::addScript( "jquery-1.5.min" );
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OC_UTIL::addScript( "jquery-ui-1.8.10.custom.min" );
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OC_UTIL::addScript( "js" );
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OC_UTIL::addStyle( "jquery-ui-1.8.10.custom" );
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OC_UTIL::addStyle( "styles" );
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// Load Apps
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OC_APP::loadApps();
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// check if the server is correctly configured for ownCloud
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OC_UTIL::checkserver();
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/**
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* Class for utility functions
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*
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*/
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class OC_UTIL {
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public static $scripts=array();
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public static $styles=array();
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private static $fsSetup=false;
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// Can be set up
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public static function setupFS( $user = "", $root = "files" ){// configure the initial filesystem based on the configuration
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if(self::$fsSetup){//setting up the filesystem twice can only lead to trouble
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return false;
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}
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// Global Variables
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global $SERVERROOT;
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global $CONFIG_DATADIRECTORY_ROOT;
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global $CONFIG_DATADIRECTORY;
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global $CONFIG_BACKUPDIRECTORY;
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global $CONFIG_ENABLEBACKUP;
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global $CONFIG_FILESYSTEM;
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// Create root dir
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if(!is_dir($CONFIG_DATADIRECTORY_ROOT)){
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@mkdir($CONFIG_DATADIRECTORY_ROOT) or die("Can't create data directory ($CONFIG_DATADIRECTORY_ROOT), you can usually fix this by setting the owner of '$SERVERROOT' to the user that the web server uses (www-data for debian/ubuntu)");
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}
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// If we are not forced to load a specific user we load the one that is logged in
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if( $user == "" && OC_USER::isLoggedIn()){
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$user = $_SESSION['user_id'];
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}
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if( $user != "" ){ //if we aren't logged in, there is no use to set up the filesystem
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//first set up the local "root" storage and the backupstorage if needed
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$rootStorage=OC_FILESYSTEM::createStorage('local',array('datadir'=>$CONFIG_DATADIRECTORY));
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if($CONFIG_ENABLEBACKUP){
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// This creates the Directorys recursively
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if(!is_dir( "$CONFIG_BACKUPDIRECTORY/$user/$root" )){
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mkdir( "$CONFIG_BACKUPDIRECTORY/$user/$root", 0x755, true );
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}
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$backupStorage=OC_FILESYSTEM::createStorage('local',array('datadir'=>$CONFIG_BACKUPDIRECTORY));
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$backup=new OC_FILEOBSERVER_BACKUP(array('storage'=>$backupStorage));
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$rootStorage->addObserver($backup);
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}
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OC_FILESYSTEM::mount($rootStorage,'/');
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$CONFIG_DATADIRECTORY = "$CONFIG_DATADIRECTORY_ROOT/$user/$root";
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if( !is_dir( $CONFIG_DATADIRECTORY )){
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mkdir( $CONFIG_DATADIRECTORY, 0x755, true );
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}
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//set up the other storages according to the system settings
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foreach($CONFIG_FILESYSTEM as $storageConfig){
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if(OC_FILESYSTEM::hasStorageType($storageConfig['type'])){
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$arguments=$storageConfig;
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unset($arguments['type']);
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unset($arguments['mountpoint']);
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$storage=OC_FILESYSTEM::createStorage($storageConfig['type'],$arguments);
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if($storage){
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OC_FILESYSTEM::mount($storage,$storageConfig['mountpoint']);
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}
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}
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}
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//jail the user into his "home" directory
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OC_FILESYSTEM::chroot("/$user/$root");
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self::$fsSetup=true;
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}
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}
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/**
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* get the current installed version of ownCloud
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* @return array
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*/
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public static function getVersion(){
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return array(1,2,0);
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}
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/**
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* add a javascript file
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*
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* @param url $url
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*/
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public static function addScript( $application, $file = null ){
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if( is_null( $file )){
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$file = $application;
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$application = "";
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}
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self::$scripts[] = "$application/js/$file";
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}
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/**
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* add a css file
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*
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* @param url $url
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*/
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public static function addStyle( $application, $file = null ){
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if( is_null( $file )){
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$file = $application;
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$application = "";
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}
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self::$styles[] = "$application/css/$file";
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}
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/**
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* check if the current server configuration is suitable for ownCloud
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*
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*/
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public static function checkServer(){
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global $SERVERROOT;
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global $CONFIG_DATADIRECTORY_ROOT;
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global $CONFIG_BACKUPDIRECTORY;
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global $CONFIG_ENABLEBACKUP;
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global $CONFIG_INSTALLED;
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$error='';
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if(!is_callable('sqlite_open') and !is_callable('mysql_connect')){
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$error.='No database drivers (sqlite or mysql) installed.<br/>';
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}
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global $CONFIG_DBTYPE;
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global $CONFIG_DBNAME;
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if(!stristr(PHP_OS, 'WIN')){
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if($CONFIG_DBTYPE=='sqlite'){
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$file=$SERVERROOT.'/'.$CONFIG_DBNAME;
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if(file_exists($file)){
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$prems=substr(decoct(fileperms($file)),-3);
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if(substr($prems,2,1)!='0'){
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@chmod($file,0660);
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clearstatcache();
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$prems=substr(decoct(fileperms($file)),-3);
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if(substr($prems,2,1)!='0'){
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$error.='SQLite database file ('.$file.') is readable from the web<br/>';
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}
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}
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}
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}
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$prems=substr(decoct(fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
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if(substr($prems,-1)!='0'){
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chmodr($CONFIG_DATADIRECTORY_ROOT,0770);
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clearstatcache();
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$prems=substr(decoct(fileperms($CONFIG_DATADIRECTORY_ROOT)),-3);
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if(substr($prems,2,1)!='0'){
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$error.='Data directory ('.$CONFIG_DATADIRECTORY_ROOT.') is readable from the web<br/>';
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}
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}
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if($CONFIG_ENABLEBACKUP){
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$prems=substr(decoct(fileperms($CONFIG_BACKUPDIRECTORY)),-3);
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if(substr($prems,-1)!='0'){
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chmodr($CONFIG_BACKUPDIRECTORY,0770);
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clearstatcache();
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$prems=substr(decoct(fileperms($CONFIG_BACKUPDIRECTORY)),-3);
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if(substr($prems,2,1)!='0'){
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$error.='Data directory ('.$CONFIG_BACKUPDIRECTORY.') is readable from the web<br/>';
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}
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}
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}
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}else{
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//TODO: premisions checks for windows hosts
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}
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if($error){
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die($error);
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}
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}
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}
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/**
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* This class manages the hooks. It basically provides two functions: adding
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* slots and emitting signals.
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*/
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class OC_HOOK{
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static private $registered = array();
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/**
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* @brief connects a function to a hook
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* @param $signalclass class name of emitter
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* @param $signalname name of signal
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* @param $slotclass class name of slot
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* @param $slotname name of slot
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* @returns true/false
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*
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* This function makes it very easy to connect to use hooks.
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*
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* TODO: write example
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*/
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public function connect( $signalclass, $signalname, $slotclass, $slotname ){
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// Cerate the data structure
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if( !array_key_exists( $signalclass, self::$registered )){
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self::$registered[$signalclass] = array();
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}
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if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
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self::$registered[$signalclass][$signalname] = array();
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}
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// register hook
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self::$registered[$signalclass][$signalname][] = array(
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"class" => $slotclass,
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"name" => $slotname );
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// No chance for failure ;-)
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return true;
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}
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/**
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* @brief emitts a signal
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* @param $signalclass class name of emitter
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* @param $signalname name of signal
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* @param $params defautl: array() array with additional data
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* @returns true if slots exists or false if not
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*
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* Emits a signal. To get data from the slot use references!
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*
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* TODO: write example
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*/
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public function emit( $signalclass, $signalname, $params = array()){
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// Return false if there are no slots
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if( !array_key_exists( $signalclass, self::$registered )){
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return false;
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}
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if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
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return false;
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}
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// Call all slots
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foreach( $registered[$signalclass][$signalname] as $i ){
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call_user_func( array( $i["class"], $i["name"] ), $params );
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}
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// return true
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return true;
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}
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}
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/**
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* This class manages the access to the database. It basically is a wrapper for
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* MDB2 with some adaptions.
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*/
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class OC_DB {
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static private $DBConnection=false;
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static private $schema=false;
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static private $affected=0;
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static private $result=false;
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/**
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* @brief connects to the database
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* @returns true if connection can be established or nothing (die())
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*
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* Connects to the database as specified in config.php
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*/
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static public function connect(){
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// The global data we need
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global $CONFIG_DBNAME;
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global $CONFIG_DBHOST;
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global $CONFIG_DBUSER;
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global $CONFIG_DBPASSWORD;
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global $CONFIG_DBTYPE;
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global $DOCUMENTROOT;
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global $SERVERROOT;
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// do nothing if the connection already has been established
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if(!self::$DBConnection){
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// Require MDB2.php (not required in the head of the file so we only load it when needed)
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require_once('MDB2.php');
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// Prepare options array
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$options = array(
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'portability' => MDB2_PORTABILITY_ALL,
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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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// Add the dsn according to the database type
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if( $CONFIG_DBTYPE == 'sqlite' ){
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// sqlite
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$dsn = array(
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'phptype' => 'sqlite',
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'database' => "$SERVERROOT/$CONFIG_DBNAME",
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'mode' => '0644' );
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}
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elseif( $CONFIG_DBTYPE == 'mysql' ){
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// MySQL
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$dsn = array(
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'phptype' => 'mysql',
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'username' => $CONFIG_DBUSER,
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'password' => $CONFIG_DBPASSWORD,
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'hostspec' => $CONFIG_DBHOST,
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'database' => $CONFIG_DBNAME );
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}
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elseif( $CONFIG_DBTYPE == 'pgsql' ){
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// PostgreSQL
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$dsn = array(
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'phptype' => 'pgsql',
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'username' => $CONFIG_DBUSER,
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'password' => $CONFIG_DBPASSWORD,
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'hostspec' => $CONFIG_DBHOST,
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'database' => $CONFIG_DBNAME );
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}
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// Try to establish connection
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self::$DBConnection = MDB2::factory( $dsn, $options );
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// Die if we could not connect
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if( PEAR::isError( self::$DBConnection )){
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echo( '<b>can not connect to database, using '.$CONFIG_DBTYPE.'. ('.self::$DBConnection->getUserInfo().')</center>');
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$error = self::$DBConnection->getMessage();
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error_log( $error);
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error_log( self::$DBConnection->getUserInfo());
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die( $error );
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}
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// We always, really always want associative arrays
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self::$DBConnection->setFetchMode(MDB2_FETCHMODE_ASSOC);
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}
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// we are done. great!
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return true;
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}
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/**
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* @brief SQL query
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* @param $query Query string
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* @returns result as MDB2_Result
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*
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* SQL query via MDB2 query()
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*/
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static public function query( $query ){
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// Optimize the query
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$query = self::processQuery( $query );
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self::connect();
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//fix differences between sql versions
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// return the result
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$result = self::$DBConnection->exec( $query );
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// Die if we have an error (error means: bad query, not 0 results!)
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if( PEAR::isError($result)) {
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$entry = 'DB Error: "'.$result->getMessage().'"<br />';
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$entry .= 'Offending command was: '.$cmd.'<br />';
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error_log( $entry );
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die( $entry );
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}
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return $result;
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}
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/**
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* @brief Prepare a SQL query
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* @param $query Query string
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* @returns prepared SQL query
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*
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* SQL query via MDB2 prepare(), needs to be execute()'d!
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*/
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static public function prepare( $query ){
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// Optimize the query
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$query = self::processQuery( $query );
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self::connect();
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// return the result
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$result = self::$DBConnection->prepare( $query );
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// Die if we have an error (error means: bad query, not 0 results!)
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if( PEAR::isError($result)) {
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$entry = 'DB Error: "'.$result->getMessage().'"<br />';
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$entry .= 'Offending command was: '.$cmd.'<br />';
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error_log( $entry );
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die( $entry );
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}
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return $result;
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}
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|
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/**
|
|
* @brief gets last value of autoincrement
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* @returns id
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*
|
|
* MDB2 lastInsertID()
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*
|
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* Call this method right after the insert command or other functions may
|
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* cause trouble!
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*/
|
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public static function insertid(){
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self::connect();
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return self::$DBConnection->lastInsertID();
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}
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/**
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* @brief Disconnect
|
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* @returns true/false
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*
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* This is good bye, good bye, yeah!
|
|
*/
|
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public static function disconnect(){
|
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// Cut connection if required
|
|
if(self::$DBConnection){
|
|
self::$DBConnection->disconnect();
|
|
self::$DBConnection=false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Escapes bad characters
|
|
* @param $string string with dangerous characters
|
|
* @returns escaped string
|
|
*
|
|
* MDB2 escape()
|
|
*/
|
|
public static function escape( $string ){
|
|
self::connect();
|
|
return self::$DBConnection->escape( $string );
|
|
}
|
|
|
|
/**
|
|
* @brief saves database scheme to xml file
|
|
* @param $file name of file
|
|
* @returns true/false
|
|
*
|
|
* TODO: write more documentation
|
|
*/
|
|
public static function getDbStructure( $file ){
|
|
self::connectScheme();
|
|
|
|
// write the scheme
|
|
$definition = self::$schema->getDefinitionFromDatabase();
|
|
$dump_options = array(
|
|
'output_mode' => 'file',
|
|
'output' => $file,
|
|
'end_of_line' => "\n"
|
|
);
|
|
self::$schema->dumpDatabase( $definition, $dump_options, MDB2_SCHEMA_DUMP_STRUCTURE );
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief Creates tables from XML file
|
|
* @param $file file to read structure from
|
|
* @returns true/false
|
|
*
|
|
* TODO: write more documentation
|
|
*/
|
|
public static function createDbFromStructure( $file ){
|
|
global $CONFIG_DBNAME;
|
|
global $CONFIG_DBTABLEPREFIX;
|
|
|
|
self::connectScheme();
|
|
|
|
// read file
|
|
$content = file_get_contents( $file );
|
|
|
|
// Make changes and save them to a temporary file
|
|
$file2 = tempnam( sys_get_temp_dir(), 'oc_db_scheme_' );
|
|
$content = str_replace( '*dbname*', $CONFIG_DBNAME, $content );
|
|
$content = str_replace( '*dbprefix*', $CONFIG_DBTABLEPREFIX, $content );
|
|
file_put_contents( $file2, $content );
|
|
|
|
// Try to create tables
|
|
$definition = @self::$schema->parseDatabaseDefinitionFile( $file2 );
|
|
|
|
// Delete our temporary file
|
|
unlink( $file2 );
|
|
|
|
// Die in case something went wrong
|
|
if( $definition instanceof MDB2_Schema_Error ){
|
|
die( $definition->getMessage().': '.$definition->getUserInfo());
|
|
}
|
|
$ret=@self::$schema->createDatabase( $definition );
|
|
|
|
// Die in case something went wrong
|
|
if( $ret instanceof MDB2_Error ){
|
|
die ($ret->getMessage() . ': ' . $ret->getUserInfo());
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief connects to a MDB2 database scheme
|
|
* @returns true/false
|
|
*
|
|
* Connects to a MDB2 database scheme
|
|
*/
|
|
private static function connectScheme(){
|
|
// We need a database connection
|
|
self::connect();
|
|
|
|
// Connect if this did not happen before
|
|
if(!self::$schema){
|
|
require_once('MDB2/Schema.php');
|
|
self::$schema=&MDB2_Schema::factory(self::$DBConnection);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @brief does minor chages to query
|
|
* @param $query Query string
|
|
* @returns corrected query string
|
|
*
|
|
* This function replaces *PREFIX* with the value of $CONFIG_DBTABLEPREFIX
|
|
* and replaces the ` woth ' or " according to the database driver.
|
|
*/
|
|
private static function processQuery( $query ){
|
|
// We need Database type and table prefix
|
|
global $CONFIG_DBTYPE;
|
|
global $CONFIG_DBTABLEPREFIX;
|
|
|
|
// differences in escaping of table names (` for mysql)
|
|
// Problem: what if there is a ` in the value we want to insert?
|
|
if( $CONFIG_DBTYPE == 'sqlite' ){
|
|
$query = str_replace( '`', '\'', $query );
|
|
}
|
|
elseif( $CONFIG_DBTYPE == 'pgsql' ){
|
|
$query = str_replace( '`', '"', $query );
|
|
}
|
|
|
|
// replace table names
|
|
$query = str_replace( '*PREFIX*', $CONFIG_DBTABLEPREFIX, $query );
|
|
|
|
return $query;
|
|
}
|
|
}
|
|
|
|
function chmodr($path, $filemode) {
|
|
// echo "$path<br/>";
|
|
if (!is_dir($path))
|
|
return chmod($path, $filemode);
|
|
$dh = opendir($path);
|
|
while (($file = readdir($dh)) !== false) {
|
|
if($file != '.' && $file != '..') {
|
|
$fullpath = $path.'/'.$file;
|
|
if(is_link($fullpath))
|
|
return FALSE;
|
|
elseif(!is_dir($fullpath) && !chmod($fullpath, $filemode))
|
|
return FALSE;
|
|
elseif(!chmodr($fullpath, $filemode))
|
|
return FALSE;
|
|
}
|
|
}
|
|
closedir($dh);
|
|
if(chmod($path, $filemode))
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
?>
|