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<?php
/**
* ownCloud
*
* @author Robin Appelman
* @copyright 2010 Frank Karlitschek karlitschek@kde.org
*
* 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/>.
*
*/
/**
* This class provides the functionality needed to install, update and remove plugins/apps
*/
class OC_Installer{
/**
* @brief Installs an app
* @param $data array with all information
* @returns integer
*
* This function installs an app. All information needed are passed in the
* associative array $data.
* The following keys are required:
* - source: string, can be "path" or "http"
*
* One of the following keys is required:
* - path: path to the file containing the app
* - href: link to the downloadable file containing the app
*
* The following keys are optional:
* - pretend: boolean, if set true the system won't do anything
* - noinstall: boolean, if true appinfo/install.php won't be loaded
* - inactive: boolean, if set true the appconfig/app.sample.php won't be
* renamed
*
* This function works as follows
* -# fetching the file
* -# unzipping it
* -# installing the database at appinfo/database.xml
* -# including appinfo/install.php
* -# setting the installed version
*
* It is the task of oc_app_install to create the tables and do whatever is
* needed to get the app working.
*/
public static function installApp( $data = array()){
if(!isset($data['source'])){
OC_Log::write('core','No source specified when installing app',OC_Log::ERROR);
return false;
}
//download the file if necesary
if($data['source']=='http'){
$path=tempnam(get_temp_dir(),'oc_installer_');
if(!isset($data['href'])){
OC_Log::write('core','No href specified when installing app from http',OC_Log::ERROR);
return false;
}
copy($data['href'],$path);
}else{
if(!isset($data['path'])){
OC_Log::write('core','No path specified when installing app from local file',OC_Log::ERROR);
return false;
}
$path=$data['path'];
}
//extract the archive in a temporary folder
$extractDir=tempnam(get_temp_dir(),'oc_installer_uncompressed_');
unlink($extractDir);
mkdir($extractDir);
$zip = new ZipArchive;
if($zip->open($path)===true){
$zip->extractTo($extractDir);
$zip->close();
} else {
OC_Log::write('core','Failed to open archive when installing app',OC_Log::ERROR);
OC_Helper::rmdirr($extractDir);
if($data['source']=='http'){
unlink($path);
}
return false;
}
//load the info.xml file of the app
if(!is_file($extractDir.'/appinfo/info.xml')){
OC_Log::write('core','App does not provide an info.xml file',OC_Log::ERROR);
OC_Helper::rmdirr($extractDir);
if($data['source']=='http'){
unlink($path);
}
return false;
}
$info=OC_App::getAppInfo($extractDir.'/appinfo/info.xml',true);
$basedir=OC::$SERVERROOT.'/apps/'.$info['id'];
//check if an app with the same id is already installed
if(self::isInstalled( $info['id'] )){
OC_Log::write('core','App already installed',OC_Log::WARN);
OC_Helper::rmdirr($extractDir);
if($data['source']=='http'){
unlink($path);
}
return false;
}
//check if the destination directory already exists
if(is_dir($basedir)){
OC_Log::write('core','App directory already exists',OC_Log::WARN);
OC_Helper::rmdirr($extractDir);
if($data['source']=='http'){
unlink($path);
}
return false;
}
if(isset($data['pretent']) and $data['pretent']==true){
return false;
}
//copy the app to the correct place
if(!mkdir($basedir)){
OC_Log::write('core','Can\'t create app folder ('.$basedir.')',OC_Log::ERROR);
OC_Helper::rmdirr($extractDir);
if($data['source']=='http'){
unlink($path);
}
return false;
}
OC_Helper::copyr($extractDir,$basedir);
//remove temporary files
OC_Helper::rmdirr($extractDir);
if($data['source']=='http'){
unlink($path);
}
//install the database
if(is_file($basedir.'/appinfo/database.xml')){
OC_DB::createDbFromStructure($basedir.'/appinfo/database.xml');
}
//run appinfo/install.php
if((!isset($data['noinstall']) or $data['noinstall']==false) and file_exists($basedir.'/appinfo/install.php')){
include($basedir.'/appinfo/install.php');
}
//set the installed version
OC_Appconfig::setValue($info['id'],'installed_version',$info['version']);
OC_Appconfig::setValue($info['id'],'enabled','no');
return $info['id'];
}
/**
* @brief checks whether or not an app is installed
* @param $app app
* @returns true/false
*
* Checks whether or not an app is installed, i.e. registered in apps table.
*/
public static function isInstalled( $app ){
if( null == OC_Appconfig::getValue( $app, "installed_version" )){
return false;
}
return true;
}
/**
* @brief Update an application
* @param $data array with all information
* @returns integer
*
* This function installs an app. All information needed are passed in the
* associative array $data.
* The following keys are required:
* - source: string, can be "path" or "http"
*
* One of the following keys is required:
* - path: path to the file containing the app
* - href: link to the downloadable file containing the app
*
* The following keys are optional:
* - pretend: boolean, if set true the system won't do anything
* - noupgrade: boolean, if true appinfo/upgrade.php won't be loaded
*
* This function works as follows
* -# fetching the file
* -# removing the old files
* -# unzipping new file
* -# including appinfo/upgrade.php
* -# setting the installed version
*
* upgrade.php can determine the current installed version of the app using "OC_Appconfig::getValue($appid,'installed_version')"
*/
public static function upgradeApp( $data = array()){
// TODO: write function
return true;
}
/**
* @brief Removes an app
* @param $name name of the application to remove
* @param $options array with options
* @returns true/false
*
* This function removes an app. $options is an associative array. The
* following keys are optional:ja
* - keeppreferences: boolean, if true the user preferences won't be deleted
* - keepappconfig: boolean, if true the config will be kept
* - keeptables: boolean, if true the database will be kept
* - keepfiles: boolean, if true the user files will be kept
*
* This function works as follows
* -# including appinfo/remove.php
* -# removing the files
*
* The function will not delete preferences, tables and the configuration,
* this has to be done by the function oc_app_uninstall().
*/
public static function removeApp( $name, $options = array()){
// TODO: write function
return true;
}
/**
* @brief Installs shipped apps
* @param $enabled
*
* This function installs all apps found in the 'apps' directory;
* If $enabled is true, apps are installed as enabled.
* If $enabled is false, apps are installed as disabled.
*/
public static function installShippedApps(){
$dir = opendir( OC::$SERVERROOT."/apps" );
while( false !== ( $filename = readdir( $dir ))){
if( substr( $filename, 0, 1 ) != '.' and is_dir(OC::$SERVERROOT."/apps/$filename") ){
if( file_exists( OC::$SERVERROOT."/apps/$filename/appinfo/app.php" )){
if(!OC_Installer::isInstalled($filename)){
$info = OC_Installer::installShippedApp($filename);
$enabled = isset($info['default_enable']);
if( $enabled ){
OC_Appconfig::setValue($filename,'enabled','yes');
}else{
OC_Appconfig::setValue($filename,'enabled','no');
}
}
}
}
}
closedir( $dir );
}
/**
* install an app already placed in the app folder
* @param string $app id of the app to install
* @returns array see OC_App::getAppInfo
*/
public static function installShippedApp($app){
//install the database
if(is_file(OC::$SERVERROOT."/apps/$app/appinfo/database.xml")){
OC_DB::createDbFromStructure(OC::$SERVERROOT."/apps/$app/appinfo/database.xml");
}
//run appinfo/install.php
if(is_file(OC::$SERVERROOT."/apps/$app/appinfo/install.php")){
include(OC::$SERVERROOT."/apps/$app/appinfo/install.php");
}
$info=OC_App::getAppInfo($app);
OC_Appconfig::setValue($app,'installed_version',$info['version']);
return $info;
}
}
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