region scanner?

[divinity76]

I need a region scanner. I know my full model code is "SM-S908BZWGEUB", but i don't know the region (and there's 500+ of them), and even worse, I know the url does not use the "full" model code, but a substring of the full code. (SM-S908BZWGEUB is a Samsung Galaxy S22 Ultra sold somewhere in Europe...)

wrote one in PHP but I'm not good at C# and idk what to do with the scanner, leaving it here

sample usage:

$ time php test2.php SM-F916N
total urls to check per model string: 509
total urls to check: 2545
Checking model string 1/5: SM-F916N
http://fota-cloud-dn.ospserver.net/firmware/KTC/SM-F916N/version.xml   : 200
http://fota-cloud-dn.ospserver.net/firmware/LUC/SM-F916N/version.xml   : 200
http://fota-cloud-dn.ospserver.net/firmware/SKC/SM-F916N/version.xml   : 200
http://fota-cloud-dn.ospserver.net/firmware/KOO/SM-F916N/version.xml   : 200
509/509 - 509/2545Checking model string 2/5: SM-F916
443/509 - 952/2545

code

<?php

declare(strict_types=1);

use function var_dump as d;

function getCSCList(): array
{
    $raw = file_get_contents('https://raw.githubusercontent.com/zacharee/SamloaderKotlin/master/common/src/commonMain/kotlin/tk/zwander/common/data/csc/CSCDB.kt');
    // CSCItem("AVF", "AL", "Vodafone"),
    $matches = [];
    preg_match_all('/CSCItem\\s*\\(\\"([^\\"]+)/', $raw, $matches);
    return $matches[1];
}
$model = $argv[1] ?? '';
if ($argc !== 2 || empty($model)) {
    echo "Usage: php scanner.php <model>\n";
    exit(1);
}
$ch = curl_init();
curl_setopt_array($ch, array(
    CURLOPT_URL => "http://fota-cloud-dn.ospserver.net/firmware/{$model}/version.xml",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_AUTOREFERER => true,
    CURLOPT_SSL_VERIFYPEER => false,
    CURLOPT_SSL_VERIFYHOST => false,
    //CURLOPT_USERAGENT => "Mozilla/5.0 (Windows NT 6.1; rv:40.0) Gecko/20100101 Firefox/40.0",
    CURLOPT_USERAGENT => 'csc_scanner/0.0.1',
));

$csclist = getCSCList();
$modelStrings = array();
for ($i = strlen($model); $i >= strlen("SM-S"); $i--) {
    $modelStrings[] = substr($model, 0, $i);
}
$totalModelStrings = count($modelStrings);
$totalPerModelString = count($csclist);
$grandTotalUrls = $totalPerModelString * count($modelStrings);
echo "total urls to check per model string: {$totalPerModelString}\n";
echo "total urls to check: {$grandTotalUrls}\n";
$urlsChecked = 0;
foreach ($modelStrings as $modelStringKey => $model) {
    $modelStringKeyPlusOne = $modelStringKey + 1;
    echo "\rChecking model string {$modelStringKeyPlusOne}/{$totalModelStrings}: {$model}\n";
    foreach ($csclist as $key => $str) {
        $keyPlusOne = $key + 1;
        $url = "http://fota-cloud-dn.ospserver.net/firmware/{$str}/{$model}/version.xml";
        curl_setopt($ch, CURLOPT_URL, $url);
        $response = curl_exec($ch);
        ++$urlsChecked;
        $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        if ($httpcode !== 403) {
            echo "\r{$url}" . str_repeat(" ", 3) . ": {$httpcode}\n";
        } else {
            echo "\r{$keyPlusOne}/{$totalPerModelString} - {$urlsChecked}/{$grandTotalUrls}";
        }
    }
}