snaptik_decoder.php

<?php

/*
i convert it from js to python then from python to php LOL
credit: github.com/motebaya
*/

class Decoder
{
	private $content;
	private $h;
	private $e;
	private $alpa = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ+/";
	public function __construct($content)
	{
		$this->content = $content;
	}

	public function reduce($a, $b, $c)
	{
		$a += array_search($b, $this->h) * ($this->e ** $c);
		return $a;
	}

	public function reduces($it, $intializer)
	{
		$nx = next($it); // next function in python & php is different lol
		$value = (int)$this->reduce($intializer, $nx, 0);
		unset($it[array_search($nx, $it)]);
		foreach (array_slice($it, 1) as $index => $element) {
			$value = $this->reduce($value, $element, (int)($index) + 1);
		}
		return $value;
	}

	private function chars($d, $e, $f)
	{
		$g = str_split($this->alpa);
		$this->h = array_slice($g, 0, $e);
		$this->e = $e;
		$i = array_slice($g, 0, $f);
		$arr = str_split($d);
		array_push($arr, 'skip'); // add usseles value for delete on list
		$arr = array_reverse($arr);
		$j = $this->reduces($arr, 0);
		$k = "";
		while ($j > 0) {
			$k = $i[$j % $f] . $k;
			$j = (int)($j - ($j % $f)) / $f;
		}
		return (int)$k;
	}

	private function execute($h, $u, $n, $t, $e, $r)
	{
		$r =  "";
		$i = 0;
		while ($i < strlen($h)) {
			$s = "";
			while ($h[$i] != $n[(int)$e]) {
				$s .= $h[$i];
				$i++;
			}

			for ($x = 0; $x < strlen($n); $x++) {
				$s = str_replace(
					$n[$x],
					(string)$x,
					$s
				);
			}
			$r .= chr(
				(int)$this->chars(
					$s,
					(int)$e,
					10
				) - (int)$t
			);
			$i++;
		}
		print $r;
	}

	public function decode()
	{
		if (preg_match('/\(\"(.*?)",(.*?),"(.*?)",(.*?),(.*?),(.*?)\)/i', $this->content, $match)) {
			// in python use * or literal eval from ast
			$this->execute(
				...array_slice($match, 1)
			);
			// print_r($match);
		} else {
			die($this->content);
		}
	}
}

(new Decoder(
	file_get_contents(
		"snap.html"
	)
))->decode();