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<?php
/**
* Perform installation and updates on simpleSAMLphp modules
* based on information found in a module definition.
*
* @Author Andreas Åkre Solberg, <andreas.solberg@uninett.no>
*/
class sspmod_core_ModuleInstaller {
public $module;
public function __construct(sspmod_core_ModuleDefinition $module) {
$this->module = $module;
}
public function remove($branch = NULL) {
$access = $this->module->getAccess($branch);
switch($access['type']) {
default:
$this->requireInstalled();
$this->removeModuleDir($access);
break;
}
}
public function install($branch = NULL) {
$access = $this->module->getAccess($branch);
switch($access['type']) {
case 'svn' :
$this->requireNotInstalled();
$this->svnCheckout($access);
$this->enable();
$this->prepareConfig();
break;
case 'zip' :
$this->requireNotInstalled();
$this->zipLoad($access);
$this->enable();
$this->prepareConfig();
break;
default:
throw new Exception('Unknown access method type. Not one of [zip,tgz,svn]');
}
}
public static function exec($cmd) {
echo ' $ ' . $cmd . "\n";
$output = shell_exec(escapeshellcmd($cmd));
if (empty($output)) return;
$oa = explode("\n", $output);
foreach($oa AS $ol) {
echo ' > ' . $ol . "\n";
}
}
public function upgrade($branch = NULL) {
$access = $this->module->getAccess($branch);
switch($access['type']) {
case 'svn' :
$this->requireInstalled();
$this->svnUpdate($access);
$this->enable();
$this->prepareConfig();
break;
case 'zip' :
$this->requireInstalled();
$this->zipLoad($access);
$this->enable();
$this->prepareConfig();
break;
default:
throw new Exception('Unknown access method type. Not one of [zip,tgz,svn]');
}
}
public function dirExists() {
$config = SimpleSAML_Configuration::getConfig('config.php');
$basedir = $config->getBaseDir();
$dir = $basedir . 'modules/' . $this->module->def['id'];
return (file_exists($dir) && is_dir($dir));
}
public function requireValidURL($url) {
if (!preg_match('|http(s)?://[a-zA-Z0-9_-/.]|', $url))
throw new Exception('Invalid URL [' . $url . ']');
}
public function requireNotInstalled() {
if ($this->dirExists())
throw new Exception('The module [' . $this->module->def['id'] . '] is already installed.');
}
public function requireInstalled() {
if (!$this->dirExists())
throw new Exception('The module [' . $this->module->def['id'] . '] is not installed.');
}
public function svnCheckout($access) {
$config = SimpleSAML_Configuration::getConfig('config.php');
$basedir = $config->getBaseDir();
$cmd = "svn co " . escapeshellarg($access['url']) . " " . $basedir . "modules/" . $this->module->def['id'];
self::exec($cmd);
}
public function svnUpdate($access) {
$config = SimpleSAML_Configuration::getConfig('config.php');
$basedir = $config->getBaseDir();
$cmd = "svn up " . $basedir . "modules/" . $this->module->def['id'];
self::exec($cmd);
}
public function removeModuleDir($access) {
$config = SimpleSAML_Configuration::getConfig('config.php');
$basedir = $config->getBaseDir();
$cmd = "rm -rf " . $basedir . "modules/" . $this->module->def['id'];
self::exec($cmd);
}
public function enable() {
$config = SimpleSAML_Configuration::getConfig('config.php');
$basedir = $config->getBaseDir();
$this->requireInstalled();
$cmd = "touch " . $basedir . "modules/" . $this->module->def['id'] . '/enable';
self::exec($cmd);
}
public function prepareConfig() {
$config = SimpleSAML_Configuration::getConfig('config.php');
$basedir = $config->getBaseDir();
$this->requireInstalled();
$dir = $basedir . "modules/" . $this->module->def['id'] . '/config-templates';
if (!file_exists($dir)) return;
$files = scandir($dir);
foreach($files AS $file) {
if(!preg_match('|^.*\.php|', $file)) continue;
if (file_exists($basedir . 'config/' . $file)) {
echo "Configuration file [" . $file . "] already exists. Will not overwrite existing file.\n";
continue;
}
$cmd = 'cp ' . $dir . '/' . $file . ' ' . $basedir . 'config/';
self::exec($cmd);
}
}
public function zipLoad($access) {
$config = SimpleSAML_Configuration::getConfig('config.php');
$basedir = $config->getBaseDir();
$zipfile = $access['url'];
$localfile = tempnam(sys_get_temp_dir(), 'ssp-module-');
$filecontents = file_get_contents($zipfile);
file_put_contents($localfile, $filecontents);
$cmd = "unzip -qo " . escapeshellarg($localfile) . " -d " . $basedir . "modules/";
self::exec($cmd);
}
}
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