ctrlpanel/public/install/functions.php

<?php


$required_extentions = array("openssl", "gd", "mysql", "PDO", "mbstring", "tokenizer", "bcmath", "xml", "curl", "zip", "intl");

$requirements = [
    "minPhp" => "7.4",
    "maxPhp" => "8.1", // This version is not supported
    "mysql" => "5.7.22",
];

function checkPhpVersion()
{
    global $requirements;
    if (version_compare(phpversion(), $requirements["minPhp"], '>=') && version_compare(phpversion(), $requirements["maxPhp"], '<')) {
        return "OK";
    }
    return "not OK";
}
function checkWriteable()
{
    return is_writable("../../.env");
}
function checkHTTPS()
{
    return (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off')
        || $_SERVER['SERVER_PORT'] == 443;
}

function getMySQLVersion()
{
    global $requirements;

    $output = shell_exec('mysql -V');
    preg_match('@[0-9]+\.[0-9]+\.[0-9]+@', $output, $version);

    $versionoutput = $version[0] ?? "0";

    return (intval($versionoutput) > intval($requirements["mysql"]) ? "OK" : $versionoutput);
}

function getZipVersion()
{

    $output = shell_exec('zip  -v');
    preg_match('@[0-9]+\.[0-9]+\.[0-9]+@', $output, $version);

    $versionoutput = $version[0] ?? 0;

    return ($versionoutput != 0 ? "OK" : "not OK");
}

function getGitVersion()
{

    $output = shell_exec('git  --version');
    preg_match('@[0-9]+\.[0-9]+\.[0-9]+@', $output, $version);

    $versionoutput = $version[0] ?? 0;

    return ($versionoutput != 0 ? "OK" : "not OK");
}

function getTarVersion()
{

    $output = shell_exec('tar  --version');
    preg_match('@[0-9]+\.[0-9]+@', $output, $version);

    $versionoutput = $version[0] ?? 0;

    return ($versionoutput != 0 ? "OK" : "not OK");
}

function checkExtensions()
{
    global $required_extentions;

    $not_ok = [];
    $extentions = get_loaded_extensions();

    foreach ($required_extentions as $ext) {
        if (!preg_grep("/^(?=.*" . $ext . ").*$/", $extentions))
            array_push($not_ok, $ext);
    }
    return $not_ok;
}

function setEnvironmentValue($envKey, $envValue)
{

    $envFile = dirname(__FILE__, 3) . "/.env";
    $str = file_get_contents($envFile);

    $str .= "\n"; // In case the searched variable is in the last line without \n
    $keyPosition = strpos($str, "{$envKey}=");
    $endOfLinePosition = strpos($str, PHP_EOL, $keyPosition);
    $oldLine = substr($str, $keyPosition, $endOfLinePosition - $keyPosition);
    $str = str_replace($oldLine, "{$envKey}={$envValue}", $str);
    $str = substr($str, 0, -1);

    $fp = fopen($envFile, 'w');
    fwrite($fp, $str);
    fclose($fp);
}

function getEnvironmentValue($envKey)
{
    $envFile = dirname(__FILE__, 3) . "/.env";
    $str = file_get_contents($envFile);

    $str .= "\n"; // In case the searched variable is in the last line without \n
    $keyPosition = strpos($str, "{$envKey}=");
    $endOfLinePosition = strpos($str, PHP_EOL, $keyPosition);
    $oldLine = substr($str, $keyPosition, $endOfLinePosition - $keyPosition);
    $value = substr($oldLine, strpos($oldLine, "=") + 1);



    return $value;
}


function run_console($command)
{
    $path = dirname(__FILE__, 3);
    $cmd = "cd '$path' && bash -c 'exec -a ServerCPP $command' 2>&1";
    return shell_exec($cmd);
}

function wh_log($log_msg)
{
    $log_filename = "logs";
    if (!file_exists($log_filename)) {
        // create directory/folder uploads.
        mkdir($log_filename, 0777, true);
    }
    $log_file_data = $log_filename . '/installer.log';
    // if you don't add `FILE_APPEND`, the file will be erased each time you add a log
    file_put_contents($log_file_data, "[" . date('h:i:s') . "] " . $log_msg . "\n", FILE_APPEND);
}


function generateRandomString($length = 8) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $charactersLength = strlen($characters);
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[rand(0, $charactersLength - 1)];
    }
    return $randomString;
}