chevereto-free/app/install/update/updater.php

207 lines
8.6 KiB
PHP

<?php
/* --------------------------------------------------------------------
Chevereto
http://chevereto.com/
@author Rodolfo Berrios A. <http://rodolfoberrios.com/>
<inbox@rodolfoberrios.com>
Copyright (C) Rodolfo Berrios A. All rights reserved.
BY USING THIS SOFTWARE YOU DECLARE TO ACCEPT THE CHEVERETO EULA
http://chevereto.com/license
--------------------------------------------------------------------- */
namespace CHV;
use G, Exception;
if(!defined('access') or !access) die('This file cannot be directly accessed.');
try {
if(!is_null(getSetting('chevereto_version_installed')) and !Login::getUser()['is_admin']) {
G\set_status_header(403);
die('Request denied. You must be an admin to be here.');
}
if(!class_exists('ZipArchive')) {
throw new Exception("PHP ZipArchive class is not enabled in this server");
}
if(!is_writable(G_ROOT_PATH)) {
throw new Exception(sprintf("Can't write into root %s path", G\absolute_to_relative(G_ROOT_PATH)));
}
$update_temp_dir = CHV_APP_PATH_INSTALL . 'update/temp/';
if(!is_writable($update_temp_dir)) {
throw new Exception(sprintf("Can't write into %s path", G\absolute_to_relative($update_temp_dir)));
}
if(!isset($_REQUEST['action'])) {
$doctitle = 'Update in progress';
$system_template = CHV_APP_PATH_SYSTEM . 'template.php';
$update_template = dirname($update_temp_dir) . '/template/update.php';
if(file_exists($update_template)) {
ob_start();
require_once($update_template);
$html = ob_get_contents();
ob_end_clean();
} else {
throw new Exception("Can't find " . G\absolute_to_relative($update_template));
}
if(!@require_once($system_template)) {
throw new Exception("Can't find " . G\absolute_to_relative($system_template));
}
} else {
set_time_limit(300); // Allow up to five minutes...
switch($_REQUEST['action']) {
case 'ask':
try {
$json_array = json_decode(G\fetch_url('https://chevereto.com/api/get/info/free'), TRUE);
$json_array['success'] = ['message' => 'OK']; // "success" is a Chevereto internal thing
} catch(Exception $e) {
throw new Exception(_s("An error occurred. Please try again later."), 400);
}
break;
case 'download':
try {
$version = $_REQUEST['version'];
$context = stream_context_create([
'http'=> [
'method' => 'GET',
'header' => "User-agent: " . G_APP_GITHUB_REPO . "\r\n"
]
]);
$download = @file_get_contents('https://api.github.com/repos/' . G_APP_GITHUB_OWNER . '/' . G_APP_GITHUB_REPO . '/zipball/'.$version, FALSE, $context);
if($download === FALSE) {
throw new Exception(sprintf("Can't fetch " . G_APP_NAME . " v%s from GitHub", $version), 400);
}
$github_json = json_decode($download, TRUE);
if(json_last_error() == JSON_ERROR_NONE) {
throw new Exception("Can't proceed with update procedure");
} else {
// Get Content-Disposition header from GitHub
foreach($http_response_header as $header) {
if(preg_match('/^Content-Disposition:.*filename=(.*)$/i', $header, $matches)) {
$zip_local_filename = G\str_replace_last('.zip', '_' . G\random_string(24) . '.zip', $matches[1]);
break;
}
}
if(!isset($zip_local_filename)) {
throw new Exception("Can't grab content-disposition header from GitHub");
}
if(file_put_contents($update_temp_dir . $zip_local_filename, $download) === FALSE) {
throw new Exception(_s("Can't save file"));
}
$json_array = [
'success' => [
'message' => 'Download completed',
'code' => 200
],
'download' => [
'filename' => $zip_local_filename
]
];
}
} catch (Exception $e) {
throw new Exception(_s("Can't download %s", 'v' . $version) . ' (' . $e->getMessage() . ')');
}
break;
case 'extract':
$zip_file = $update_temp_dir . $_REQUEST['file'];
if(FALSE === preg_match('/^Chevereto-Chevereto-Free-([\d.]+)-\d+-g(.*)_.*$/', $_REQUEST['file'], $matches)) {
throw new Exception("Can't detect target zip file version");
}
$version = $matches[1];
$etag_short = $matches[2];
// Test .zip
if(!is_readable($zip_file)) {
throw new Exception('Missing '.$zip_file.' file', 400);
}
// Unzip .zip
$zip = new \ZipArchive;
if ($zip->open($zip_file) === TRUE) {
// At this point we will enter the website in maintenance mode (if needed)
try {
$toggle_maintenance = !getSetting('maintenance');
if($toggle_maintenance) {
DB::update('settings', ['value' => $toggle_maintenance], ['name' => 'maintenance']);
}
} catch (Exception $e) {}
$zip->extractTo($update_temp_dir);
$zip->close();
@unlink($zip_file);
} else {
throw new Exception(_s("Can't extract %s", G\absolute_to_relative($zip_file)), 401);
}
// Recursive copy UPDATE -> CURRENT
$source = $update_temp_dir . G_APP_GITHUB_OWNER . '-' . G_APP_GITHUB_REPO . '-' . $etag_short . '/';
$dest = G_ROOT_PATH;
foreach ($iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($source, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::SELF_FIRST) as $item) {
$target = $dest . $iterator->getSubPathName();
$target_visible = G\absolute_to_relative($target);
if ($item->isDir()) {
if(!file_exists($target) and !@mkdir($target)) {
$error = error_get_last();
throw new Exception(_s("Can't create %s directory - %e", [
'%s' => $target_visible,
'%e' => $error['message']
]), 402);
}
} else {
// Touch anything but .htaccess files
if(!preg_match('/\.htaccess$/', $item)) {
if(!@copy($item, $target)) {
$error = error_get_last();
throw new Exception(_s("Can't update %s file - %e", [
'%s' => $target_visible,
'%e' => $error['message']
]), 403);
}
}
unlink($item); // Save some valuable seconds...
}
}
// Remove working copy (UPDATE)
$tmp = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($update_temp_dir, \RecursiveDirectoryIterator::SKIP_DOTS), \RecursiveIteratorIterator::CHILD_FIRST);
foreach ($tmp as $fileinfo) {
$todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink');
$todo($fileinfo->getRealPath());
}
// Turn off maintenance mode (if needed)
try {
if($toggle_maintenance) {
DB::update('settings', ['value' => 0], ['name' => 'maintenance']);
}
} catch (Exception $e) {}
$json_array['success'] = ['message' => 'OK', 'code' => 200];
break;
}
// Inject any missing status_code
if(isset($json_array['success']) and !isset($json_array['status_code'])) {
$json_array['status_code'] = 200;
}
$json_array['request'] = $_REQUEST;
G\Render\json_output($json_array);
}
die(); // Terminate any remaining execution (if any)
} catch (Exception $e) {
if(!isset($_REQUEST['action'])) {
Render\chevereto_die($e->getMessage(), "This installation can't use the automatic update functionality because this server is missing some crucial elements to allow Chevereto to perform the automatic update:", "Can't perform automatic update");
} else {
$json_array = G\json_error($e);
$json_array['request'] = $_REQUEST;
G\Render\json_output($json_array);
}
}