✨ message attachments

package.json

@@ -29,7 +29,7 @@
 	},
 	"homepage": "https://github.com/fosscord/fosscord-api#readme",
 	"dependencies": {
-		"@fosscord/server-util": "^1.3.9",
+		"@fosscord/server-util": "^1.3.10",
 		"@types/jest": "^26.0.22",
 		"@types/json-schema": "^7.0.7",
 		"ajv": "^8.4.0",
@@ -44,11 +44,12 @@
 		"env-paths": "^2.2.1",
 		"express": "^4.17.1",
 		"express-validator": "^6.9.2",
+		"form-data": "^3.0.0",
 		"i18next": "^19.8.5",
 		"i18next-http-middleware": "^3.1.3",
 		"i18next-node-fs-backend": "^2.1.3",
 		"jsonwebtoken": "^8.5.1",
-		"lambert-server": "^1.2.2",
+		"lambert-server": "^1.2.3",
 		"missing-native-js-functions": "^1.2.6",
 		"mongodb": "^3.6.5",
 		"mongoose": "^5.12.3",

src/routes/channels/#channel_id/messages/#message_id/index.ts

@@ -45,6 +45,8 @@ router.patch("/", check(MessageCreateSchema), async (req, res) => {
 	return res.json(toObject(message));
 });
 
+// TODO: delete attachments in message
+
 router.delete("/", async (req, res) => {
 	const { message_id, channel_id } = req.params;
 

src/routes/channels/#channel_id/messages/index.ts

@@ -1,24 +1,13 @@
 import { Router } from "express";
-import {
-	ChannelModel,
-	ChannelType,
-	getPermission,
-	Message,
-	MessageCreateEvent,
-	MessageDocument,
-	MessageModel,
-	Snowflake,
-	toObject
-} from "@fosscord/server-util";
+import { Attachment, ChannelModel, ChannelType, getPermission, MessageDocument, MessageModel, toObject } from "@fosscord/server-util";
 import { HTTPError } from "lambert-server";
 import { MessageCreateSchema } from "../../../../schema/Message";
 import { check, instanceOf, Length } from "../../../../util/instanceOf";
-import { PublicUserProjection } from "../../../../util/User";
 import multer from "multer";
-import { emitEvent } from "../../../../util/Event";
 import { Query } from "mongoose";
-import { PublicMemberProjection } from "../../../../util/Member";
 import { sendMessage } from "../../../../util/Message";
+import { uploadFile } from "../../../../util/cdn";
+
 const router: Router = Router();
 
 export default router;
@@ -93,7 +82,14 @@ router.get("/", async (req, res) => {
 });
 
 // TODO: config max upload size
-const messageUpload = multer({ limits: { fieldSize: 1024 * 1024 * 1024 * 50 } }); // max upload 50 mb
+const messageUpload = multer({
+	limits: {
+		fileSize: 1024 * 1024 * 100,
+		fields: 10,
+		files: 1
+	},
+	storage: multer.memoryStorage()
+}); // max upload 50 mb
 
 // TODO: dynamically change limit of MessageCreateSchema with config
 // TODO: check: sum of all characters in an embed structure must not exceed 6000 characters
@@ -101,14 +97,31 @@ const messageUpload = multer({ limits: { fieldSize: 1024 * 1024 * 1024 * 50 } })
 // https://discord.com/developers/docs/resources/channel#create-message
 // TODO: text channel slowdown
 // TODO: trim and replace message content and every embed field
+
 // Send message
-router.post("/", check(MessageCreateSchema), async (req, res) => {
+router.post("/", check(MessageCreateSchema), messageUpload.single("file"), async (req, res) => {
 	const { channel_id } = req.params;
-	const body = req.body as MessageCreateSchema;
+	var body = req.body as MessageCreateSchema;
+	const attachments: Attachment[] = [];
+
+	if (req.file) {
+		try {
+			const file = await uploadFile(`/attachments/${channel_id}`, req.file);
+			attachments.push({ ...file, proxy_url: file.url });
+		} catch (error) {
+			return res.status(400).json(error);
+		}
+	}
+
+	if (body.payload_json) {
+		body = JSON.parse(body.payload_json);
+		const errors = instanceOf(MessageCreateSchema, body, { req });
+		if (errors !== true) throw errors;
+	}
 
 	const embeds = [];
 	if (body.embed) embeds.push(body.embed);
-	const data = await sendMessage({ ...body, type: 0, pinned: false, author_id: req.user_id, embeds, channel_id });
+	const data = await sendMessage({ ...body, type: 0, pinned: false, author_id: req.user_id, embeds, channel_id, attachments });
 
 	return res.send(data);
 });

src/schema/Message.ts

@@ -68,4 +68,5 @@ export interface MessageCreateSchema {
 		fail_if_not_exists: boolean;
 	};
 	payload_json?: string;
+	file?: any;
 }

src/util/Message.ts

@@ -50,7 +50,7 @@ export async function handleMessage(opts: Partial<Message>) {
 		mention_channels_ids: [],
 		mention_role_ids: [],
 		mention_user_ids: [],
-		attachments: [], // TODO: message attachments
+		attachments: opts.attachments || [], // TODO: message attachments
 		embeds: opts.embeds || [],
 		reactions: opts.reactions || [],
 		type: opts.type ?? 0

src/util/cdn.ts

@@ -0,0 +1,24 @@
+import { Config } from "@fosscord/server-util";
+import FormData from "form-data";
+import fetch from "node-fetch";
+
+export async function uploadFile(path: string, file: Express.Multer.File) {
+	const form = new FormData();
+	form.append("file", file.buffer, {
+		contentType: file.mimetype,
+		filename: file.originalname
+	});
+
+	const response = await fetch(`${Config.get().cdn.endpoint || "http://localhost:3003"}${path}`, {
+		headers: {
+			signature: Config.get().security.requestSignature,
+			...form.getHeaders()
+		},
+		method: "POST",
+		body: form
+	});
+	const result = await response.json();
+
+	if (response.status !== 200) throw result;
+	return result;
+}