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add structure for `Oracles' (special answers depending on queries + a few implementations (#10)

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incl. a calculator, a hash encoder + rot13 and b64!, and a "what time is it" with timezone selection

frontend injected in $payload["left"] in web.php

you can see this live [on my instance](https://4get.silly.computer/web?s=7%2B8(9%5E2)&scraper=brave&nsfw=yes) (there are some issues that aren't related to this PR. favicons, etc. I'll fix them later.)

Reviewed-on: https://git.lolcat.ca/lolcat/4get/pulls/10
Co-authored-by: cynic <admin@cynic.moe>
Co-committed-by: cynic <admin@cynic.moe>
This commit is contained in:
cynic 2023-09-13 22:24:02 -05:00 • committed by lolcat
parent d312674df7
commit 8762d68466
6 changed files with 349 additions and 0 deletions
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40
oracles/encoder.php Normal file
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@ -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 "";
}
}
?>