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oracles/encoder.php

@@ -0,0 +1,40 @@
+<?php
+include_once("oracles/base.php");
+class encoder extends oracle {
+	public $info = [
+		"name" => "text encoder/hasher"
+	];
+	private $special_types = [
+		"rot13",
+		"base64"
+	];
+	public function check_query($q) {
+		$types = array_merge($this->special_types, hash_algos());
+		foreach ($types as $type) {
+			$type .= " ";
+			if (str_starts_with($q, $type)) {
+				return true;
+			}
+		}
+		return false;
+	}
+	public function generate_response($q)
+	{
+		$type = explode(" ", $q)[0];
+		$victim = substr($q, strlen($type)+1);
+		if (in_array($type, hash_algos())) {
+			return [$type." hash" => hash($type, $victim)];
+		}
+		switch ($type) {
+			case "rot13":
+				return ["rot13 encoded" => str_rot13($victim)];
+			case "base64":
+				return [
+					"base64 encoded" => base64_encode($victim),
+					"base64 decoded" => base64_decode($victim)
+				];
+		}
+		return "";
+	}
+}
+?>