Tachidesk-Sorayomi web auto update

index.php

<?php
function CallAPI($url) {
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    $useragent = 'Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0';
    curl_setopt($curl, CURLOPT_USERAGENT, $useragent);
    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "GET");
       
    $response = curl_exec($curl);
    /* Check for 404 (file not found). */
    $httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
    // Check the HTTP Status code
    switch ($httpCode) {
        case 200:
            $error_status = "200: Success";
            return ($response);
            break;
        case 404:
            $error_status = "404: API Not found";
            break;
        case 410:
            $error_status = "410: Gone";
            return false;
            break;
        case 500:
            $error_status = "500: servers replied with an error.";
            break;
        case 502:
            $error_status = "502: servers may be down or being upgraded. Hopefully they'll be OK soon!";
            break;
        case 503:
            $error_status = "503: service unavailable. Hopefully they'll be OK soon!";
            break;
        default:
            $error_status = "Undocumented error: " . $httpCode . " : " . curl_error($curl);
            return ($response);
            break;
    }
    curl_close($curl);
    echo $error_status;
    die;
}
function get_this_v(){
    $myfile = fopen('version.json', "r") or die("Unable to open file!");
    $output = fread($myfile,filesize('version.json'));
    fclose($myfile);
    return json_decode($output,  true);
}
function update_check(){
    $git = json_decode(CallAPI('https://api.github.com/repos/Suwayomi/Tachidesk-Sorayomi/releases/latest'),  true);
    $this_v = get_this_v();
    if ($this_v["version"] != $git["tag_name"]){
        $assets = $git['assets'];
        $data;
        foreach($assets as $i=>$v) {
            if($v['name'] != "tachidesk-sorayomi-".$git["tag_name"]."-web.zip" ){
                continue;
            }
            $data=$v;
            file_put_contents('./'.$v['name'], fopen($v['browser_download_url'], 'r'));
            break;
        }
        $zip = new ZipArchive;
        $res = $zip->open($data['name']);
        if ($res === TRUE) {
        $zip->extractTo('./');
        $zip->close();
        }
        unlink($data['name']);
    }
    return true;
}
update_check();
$myfile = fopen('index.html', "r") or die("Unable to open file!");
$html = fread($myfile,filesize('index.html'));
fclose($myfile);
$host = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]";
$actual_link = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
if ($host != $actual_link){
    $replace = 'base href="/"';
    $with_me = 'base href="./"';
    $output = str_replace($replace, $with_me, $html);
}
if (file_exists('./config.js')){
?>
<script src="config.js"></script>
<?php
}
echo $output;