From 3b032667851905eeec5c61d50be1e242e1aa739c Mon Sep 17 00:00:00 2001
From: Flam3rboy <34555296+Flam3rboy@users.noreply.github.com>
Date: Sat, 29 May 2021 18:23:16 +0200
Subject: [PATCH] :sparkles: avatars

---
 src/Server.ts             | 10 +++++++
 src/routes/attachments.ts | 22 +++++---------
 src/routes/avatars.ts     | 63 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 80 insertions(+), 15 deletions(-)
 create mode 100644 src/routes/avatars.ts

diff --git a/src/Server.ts b/src/Server.ts
index de02a585..15868129 100644
--- a/src/Server.ts
+++ b/src/Server.ts
@@ -1,6 +1,7 @@
 import { Server, ServerOptions } from "lambert-server";
 import { Config, db } from "@fosscord/server-util";
 import path from "path";
+import multerConfig from "multer";
 
 export interface CDNServerOptions extends ServerOptions {}
 
@@ -26,3 +27,12 @@ export class CDNServer extends Server {
 		return super.stop();
 	}
 }
+
+export const multer = multerConfig({
+	storage: multerConfig.memoryStorage(),
+	limits: {
+		fields: 0,
+		files: 1,
+		fileSize: 1024 * 1024 * 100, // 100 mb
+	},
+});
diff --git a/src/routes/attachments.ts b/src/routes/attachments.ts
index f477d1b2..3bbced31 100644
--- a/src/routes/attachments.ts
+++ b/src/routes/attachments.ts
@@ -1,21 +1,13 @@
 import { Router } from "express";
-import multer from "multer";
 import { Config, Snowflake } from "@fosscord/server-util";
 import { storage } from "../util/Storage";
 import FileType from "file-type";
 import { HTTPError } from "lambert-server";
+import { multer } from "../Server";
 
-const multer_ = multer({
-	storage: multer.memoryStorage(),
-	limits: {
-		fields: 0,
-		files: 1,
-		fileSize: 1024 * 1024 * 100, // 100 mb
-	},
-});
 const router = Router();
 
-router.post("/:channel_id", multer_.single("file"), async (req, res) => {
+router.post("/:channel_id", multer.single("file"), async (req, res) => {
 	const { buffer, mimetype, size, originalname, fieldname } = req.file;
 	const { channel_id } = req.params;
 	const filename = originalname.replaceAll(" ", "_").replace(/[^a-zA-Z0-9._]+/g, "");
@@ -31,7 +23,7 @@ router.post("/:channel_id", multer_.single("file"), async (req, res) => {
 		content_type: mimetype,
 		filename: filename,
 		size,
-		url: `${endpoint}/attachments/${channel_id}/${id}/${filename}`,
+		url: `${endpoint}/${path}`,
 	};
 
 	return res.json(file);
@@ -42,9 +34,9 @@ router.get("/:channel_id/:id/:filename", async (req, res) => {
 
 	const file = await storage.get(`attachments/${channel_id}/${id}/${filename}`);
 	if (!file) throw new HTTPError("File not found");
-	const result = await FileType.fromBuffer(file);
+	const type = await FileType.fromBuffer(file);
 
-	res.set("Content-Type", result?.mime);
+	res.set("Content-Type", type?.mime);
 
 	return res.send(file);
 });
@@ -53,9 +45,9 @@ router.delete("/:channel_id/:id/:filename", async (req, res) => {
 	const { channel_id, id, filename } = req.params;
 	const path = `attachments/${channel_id}/${id}/${filename}`;
 
-	storage.delete(path);
+	await storage.delete(path);
 
-	return res.send({ success: true, message: "attachment deleted" });
+	return res.send({ success: true });
 });
 
 export default router;
diff --git a/src/routes/avatars.ts b/src/routes/avatars.ts
new file mode 100644
index 00000000..c447db9f
--- /dev/null
+++ b/src/routes/avatars.ts
@@ -0,0 +1,63 @@
+import { Router } from "express";
+import { Config, Snowflake } from "@fosscord/server-util";
+import { storage } from "../util/Storage";
+import FileType from "file-type";
+import { HTTPError } from "lambert-server";
+import { multer } from "../Server";
+
+// TODO: check premium and animated pfp are allowed in the config
+// TODO: generate different sizes of avatar
+// TODO: generate different image types of avatar
+// TODO: delete old avatars
+// TODO: check request signature for modify methods
+
+const ANIMATED_MIME_TYPES = ["image/apng", "image/gif", "image/gifv"];
+const STATIC_MIME_TYPES = ["image/png", "image/jpeg", "image/webp"];
+const ALLOWED_MIME_TYPES = [...ANIMATED_MIME_TYPES, ...STATIC_MIME_TYPES];
+
+const router = Router();
+
+router.post("/:user_id", multer.single("file"), async (req, res) => {
+	const { buffer, mimetype, size, originalname, fieldname } = req.file;
+	const { user_id } = req.params;
+
+	const id = Snowflake.generate();
+
+	const type = await FileType.fromBuffer(buffer);
+	if (!type || !ALLOWED_MIME_TYPES.includes(type.mime)) throw new HTTPError("Invalid file type");
+	const path = `avatars/${user_id}/${id}`;
+	const endpoint = Config.get().cdn.endpoint || "http://localhost:3003";
+
+	await storage.set(path, buffer);
+
+	return res.json({
+		id,
+		content_type: type.mime,
+		size,
+		url: `${endpoint}/path`,
+	});
+});
+
+router.get("/:user_id/:id", async (req, res) => {
+	const { user_id, id } = req.params;
+	const path = `avatars/${user_id}/${id}`;
+
+	const file = await storage.get(path);
+	if (!file) throw new HTTPError("not found", 404);
+	const type = await FileType.fromBuffer(file);
+
+	res.set("Content-Type", type?.mime);
+
+	return res.send(file);
+});
+
+router.delete("/:user_id/:id", async (req, res) => {
+	const { user_id, id } = req.params;
+	const path = `avatars/${user_id}/${id}`;
+
+	await storage.delete(path);
+
+	return res.send({ success: true });
+});
+
+export default router;