From 0daea86092411969caa2fe2b195ab995edc584c5 Mon Sep 17 00:00:00 2001
From: Madeline <46743919+MaddyUnderStars@users.noreply.github.com>
Date: Sun, 2 Oct 2022 15:28:03 +1100
Subject: Use imagor for image resizing

---
 src/api/util/utility/EmbedHandlers.ts | 18 +++++++++++++++---
 src/cdn/routes/external.ts            |  2 ++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/api/util/utility/EmbedHandlers.ts b/src/api/util/utility/EmbedHandlers.ts
index a9cba383..db73dcdc 100644
--- a/src/api/util/utility/EmbedHandlers.ts
+++ b/src/api/util/utility/EmbedHandlers.ts
@@ -2,7 +2,7 @@ import { Config, Embed, EmbedType } from "@fosscord/util";
 import fetch, { Response } from "node-fetch";
 import * as cheerio from "cheerio";
 import probe from "probe-image-size";
-import imageSize from "image-size";
+import crypto from "crypto";
 
 export const DEFAULT_FETCH_OPTIONS: any = {
 	redirect: "follow",
@@ -18,16 +18,28 @@ export const DEFAULT_FETCH_OPTIONS: any = {
 
 export const getProxyUrl = (url: URL, width: number, height: number) => {
 	const { endpointPublic, resizeWidthMax, resizeHeightMax } = Config.get().cdn;
+	const secret = Config.get().security.jwtSecret;	// maybe shouldn't use this?
 	width = Math.min(width || 500, resizeWidthMax || width);
 	height = Math.min(height || 500, resizeHeightMax || width);
-	return `${endpointPublic}/external/resize/${encodeURIComponent(url.href)}?width=${width}&height=${height}`;
+
+	let path = `${width}x${height}/${url.host}${url.pathname}`
+	
+	const hash = crypto.createHmac('sha1', secret)
+	.update(path)
+	.digest('base64')
+	.replace(/\+/g, '-').replace(/\//g, '_');
+	
+	// TODO: make configurable
+	return `https://media.understars.dev/${hash}/${path}`;
+
+	// return `${endpointPublic}/external/resize/${encodeURIComponent(url.href)}?width=${width}&height=${height}`;
 };
 
 const getMeta = ($: cheerio.CheerioAPI, name: string): string | undefined => {
 	let elem = $(`meta[property="${name}"]`);
 	if (!elem.length) elem = $(`meta[name="${name}"]`);
 	return elem.attr("content") || elem.text();
-}
+};
 
 export const getMetaDescriptions = (text: string) => {
 	const $ = cheerio.load(text);
diff --git a/src/cdn/routes/external.ts b/src/cdn/routes/external.ts
index 33528a7b..32979a59 100644
--- a/src/cdn/routes/external.ts
+++ b/src/cdn/routes/external.ts
@@ -58,6 +58,8 @@ router.get("/:id", async (req: Request, res: Response) => {
 });
 
 // this method is gross lol don't care
+// It's also no longer actually used on Slowcord's official server.
+// We actually use imagor now
 router.get("/resize/:url", async (req: Request, res: Response) => {
 	const url = decodeURIComponent(req.params.url);
 	const { width, height } = req.query;
-- 
cgit 1.4.1