.
*
*/
/**
* Please copy this file into your webserver root and open it with a browser. The setup wizard checks the dependency, downloads the newest Nextcloud version, unpacks it and redirects to the Nextcloud first run wizard.
*/
// Nextcloud version
define('NC_VERSION', '11.0.0');
// init
ob_start();
error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);
ini_set('display_errors', 1);
@set_time_limit(0);
/**
* Setup class with a few helper functions
*/
class Setup {
private static $requirements = array(
array(
'classes' => array(
'ZipArchive' => 'zip',
'DOMDocument' => 'dom',
'XMLWriter' => 'XMLWriter'
),
'functions' => array(
'xml_parser_create' => 'libxml',
'mb_detect_encoding' => 'mb multibyte',
'ctype_digit' => 'ctype',
'json_encode' => 'JSON',
'gd_info' => 'GD',
'gzencode' => 'zlib',
'iconv' => 'iconv',
'simplexml_load_string' => 'SimpleXML',
'hash' => 'HASH Message Digest Framework',
'curl_init' => 'curl',
),
'defined' => array(
'PDO::ATTR_DRIVER_NAME' => 'PDO'
),
)
);
/**
* Checks if all the Nextcloud dependencies are installed
* @return string with error messages
*/
static public function checkDependencies() {
$error = '';
$missingDependencies = array();
// do we have PHP 5.4.0 or newer?
if(version_compare(PHP_VERSION, '5.6.0', '<')) {
$error.='PHP 5.6.0 is required. Please ask your server administrator to update PHP to version 5.6.0 or higher. ';
}
// running oC on windows is unsupported since 8.1
if(substr(PHP_OS, 0, 3) === "WIN") {
$error.='Nextcloud Server does not support Microsoft Windows. ';
}
foreach (self::$requirements[0]['classes'] as $class => $module) {
if (!class_exists($class)) {
$missingDependencies[] = array($module);
}
}
foreach (self::$requirements[0]['functions'] as $function => $module) {
if (!function_exists($function)) {
$missingDependencies[] = array($module);
}
}
foreach (self::$requirements[0]['defined'] as $defined => $module) {
if (!defined($defined)) {
$missingDependencies[] = array($module);
}
}
if(!empty($missingDependencies)) {
$error .= 'The following PHP modules are required to use Nextcloud: ';
}
foreach($missingDependencies as $missingDependency) {
$error .= '
Please contact your server administrator to install the missing modules.
';
}
// do we have write permission?
if(!is_writable('.')) {
$error.='Can\'t write to the current directory. Please fix this by giving the webserver user write access to the directory. ';
}
return($error);
}
/**
* Check the cURL version
* @return bool status of CURLOPT_CERTINFO implementation
*/
static public function isCertInfoAvailable() {
$curlDetails = curl_version();
return version_compare($curlDetails['version'], '7.19.1') != -1;
}
/**
* Performs the Nextcloud install.
* @return string with error messages
*/
static public function install() {
$error = '';
$directory = $_GET['directory'];
// Test if folder already exists
if(file_exists('./'.$directory.'/status.php')) {
return 'The selected folder seems to already contain a Nextcloud installation. - You cannot use this script to update existing installations.';
}
// downloading latest release
if (!file_exists('nc.zip')) {
$error .= Setup::getFile('https://download.nextcloud.com/server/releases/nextcloud-'.NC_VERSION.'.zip','nc.zip');
}
// unpacking into nextcloud folder
$zip = new ZipArchive;
$res = $zip->open('nc.zip');
if ($res==true) {
// Extract it to the tmp dir
$nextcloud_tmp_dir = 'tmp-nextcloud'.time();
$zip->extractTo($nextcloud_tmp_dir);
$zip->close();
// Move it to the folder
if ($_GET['directory'] === '.') {
foreach (array_diff(scandir($nextcloud_tmp_dir.'/nextcloud'), array('..', '.')) as $item) {
rename($nextcloud_tmp_dir.'/nextcloud/'.$item, './'.$item);
}
rmdir($nextcloud_tmp_dir.'/nextcloud');
} else {
rename($nextcloud_tmp_dir.'/nextcloud', './'.$directory);
}
// Delete the tmp folder
rmdir($nextcloud_tmp_dir);
} else {
$error.='unzip of nextcloud source file failed. ';
}
// deleting zip file
$result=@unlink('nc.zip');
if($result==false) $error.='deleting of nc.zip failed. ';
return($error);
}
/**
* Downloads a file and stores it in the local filesystem
* @param string $url
* @param string$path
* @return string with error messages
*/
static public function getFile($url,$path) {
$error='';
$fp = fopen ($path, 'w+');
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_TIMEOUT, 0);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
if (Setup::isCertInfoAvailable()){
curl_setopt($ch, CURLOPT_CERTINFO, TRUE);
}
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, TRUE);
$data=curl_exec($ch);
$curlError=curl_error($ch);
curl_close($ch);
fclose($fp);
if($data==false){
$error.='download of Nextcloud source file failed. '.$curlError;
}
return($error.$curlError);
}
/**
* Shows the html header of the setup page
*/
static public function showHeader() {
echo('
Nextcloud Setup
');
}
/**
* Shows the html footer of the setup page
*/
static public function showFooter() {
echo('
');
}
/**
* Shows the html content part of the setup page
* @param string $title
* @param string $content
* @param string $nextpage
*/
static public function showContent($title, $content, $nextpage=''){
echo('
'.$title.'
');
}
/**
* JS function to check if user deleted this script
* N.B. We can't reload the page to check this with PHP:
* once script is deleted we end up with 404
*/
static public function showJsValidation(){
echo '
';
}
/**
* Shows the welcome screen of the setup wizard
*/
static public function showWelcome() {
$txt='Welcome to the Setup Wizard for Nextcloud '.NC_VERSION.'!
This wizard will: 1. Check the server dependencies 2. Download Nextcloud 3. Install Nextcloud in a few simple steps';
Setup::showContent('Setup Wizard',$txt,1);
}
/**
* Shows the check dependencies screen
*/
static public function showCheckDependencies() {
$error=Setup::checkDependencies();
if($error=='') {
$txt='All Nextcloud dependencies found';
Setup::showContent('Dependency check',$txt,2);
}else{
$txt='Dependencies not found. '.$error;
Setup::showContent('Dependency check',$txt);
}
}
/**
* Shows the install screen
*/
static public function showInstall() {
$error=Setup::install();
if($error=='') {
$txt='Nextcloud is now installed';
Setup::showContent('Success',$txt,3);
}else{
$txt='Nextcloud is NOT installed '.$error;
Setup::showContent('Error',$txt);
}
}
/**
* Shows the redirect screen
*/
static public function showRedirect() {
// delete own file
@unlink(__FILE__);
clearstatcache();
if (file_exists(__FILE__)){
Setup::showJsValidation();
Setup::showContent(
'Warning',
'Failed to remove installer script. Please remove ' . __FILE__ . ' manually',
3
);
} else {
// redirect to Nextcloud
header("Location: " . $_GET['directory']);
}
}
}
// read the step get variable
$step = isset($_GET['step']) ? $_GET['step'] : 0;
// show the header
Setup::showHeader();
// show the right step
if ($step==0) Setup::showWelcome();
elseif ($step==1) Setup::showCheckDependencies();
elseif ($step==2) Setup::showInstall();
elseif ($step==3) Setup::showRedirect();
else echo('Internal error. Please try again.');
// show the footer
Setup::showFooter();