From dc8f78256944885108f1d52b822c8677bf9d964c Mon Sep 17 00:00:00 2001
From: Minteck <contact@minteck.org>
Date: Sun, 12 Dec 2021 11:19:38 +0100
Subject: Initial commit

---
 ratelimited/instant.php | 82 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 ratelimited/instant.php

(limited to 'ratelimited')

diff --git a/ratelimited/instant.php b/ratelimited/instant.php
new file mode 100644
index 0000000..bfbb56f
--- /dev/null
+++ b/ratelimited/instant.php
@@ -0,0 +1,82 @@
+<?php
+
+if (isset($_GET['q'])) {
+    $query = strtolower(substr($_GET['q'], 0, 200));
+    $query = preg_replace("/[^A-Za-z0-9 ]/", '', preg_replace("/[\.]/", ' ', $query));
+} else {
+    header("Location: /");
+    die();
+}
+
+$addr = sha1($_SERVER['REMOTE_ADDR']);
+$cacheOnly = false;
+$rl = [
+    "local" => -1,
+    "global" => -1,
+    "blocked" => false
+];
+
+if (!file_exists($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr)) {
+    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr, "1|" . date('YmdHi'));
+} else {
+    $requests = (int)explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr))[0];
+    $date = explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr))[1];
+    if ($date === date('YmdHi')) {
+        $requests++;
+        if ($requests > 3) {
+            $cacheOnly = true;
+            $rl["blocked"] = true;
+        }
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr, $requests . "|" . date('YmdHi'));
+    } else {
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/" . $addr, "1|" . date('YmdHi'));
+    }
+
+    $rl["local"] = $requests;
+}
+
+if (!file_exists($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global")) {
+    file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global", "1|" . date('YmdHi'));
+} else {
+    $requests = (int)explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global"))[0];
+    $date = explode("|", file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global"))[1];
+    if ($date === date('YmdHi')) {
+        $requests++;
+        if ($requests >= 20) {
+            $cacheOnly = true;
+            $rl["blocked"] = true;
+        }
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global", $requests . "|" . date('YmdHi'));
+    } else {
+        file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/private/ratelimiting/_global", "1|" . date('YmdHi'));
+    }
+
+    $rl["global"] = $requests;
+}
+
+header("Content-Type: application/json");
+
+if (file_exists($_SERVER["DOCUMENT_ROOT"] . "/private/instants/" . str_replace(" ", "_", $query))) {
+    $ds = "local";
+    $data = file_get_contents($_SERVER["DOCUMENT_ROOT"] . "/private/instants/" . str_replace(" ", "_", $query));
+} else if (file_exists($_SERVER["DOCUMENT_ROOT"] . "/private/cache/instant_" . str_replace(" ", "_", $query))) {
+    $ds = "cache";
+    $data = file_get_contents($_SERVER["DOCUMENT_ROOT"] . "/private/cache/instant_" . str_replace(" ", "_", $query));
+} else {
+    if ($cacheOnly) {
+        die();
+    } else {
+        $ds = "online";
+        $data = file_get_contents("https://api.duckduckgo.com/?q=" . $query . "&format=json&pretty=1&t=Minteck-WolfEye_https://minteck.org&skip_disambig=1&no_redirect=1&no_html=1");
+        file_put_contents($_SERVER["DOCUMENT_ROOT"] . "/private/cache/instant_" . str_replace(" ", "_", $query), $data);
+    }
+}
+
+$parsed = json_decode($data, true);
+$parsed = array_reverse($parsed);
+$parsed["_WolfEye_DataSource"] = $ds;
+$parsed["_WolfEye_RateLimiting"] = $rl;
+$parsed["_WolfEye_External"] = $ds !== "local";
+$parsed = array_reverse($parsed);
+
+die(json_encode($parsed, JSON_PRETTY_PRINT));
\ No newline at end of file
-- 
cgit