Add oauth lib code & more structure

.gitignore

@@ -1 +1,3 @@
 node_modules/
+
+config.json

README.md

@@ -1,2 +1,5 @@
-# backend
-The backend for DisGitHook which handles settings & webhooks
+# DisGitHook Backend
+
+This repository contains the backend code for the DisGitHook project.
+
+It contains the API for the website and the code for handling webhooks.

index.js

@@ -1,16 +1,29 @@
+const { db } = require("../config.json")
+
+const mysql = require("mysql2")
+const mainDB = mysql.createPool(db)
+const pool = mainDB.promise()
+
 const express = require("express")
 const app = express()
 
 // - Dashboard -
 
 app.get("/", (req, res) => {
-  	res.send({ hello: "world" })
+	res.send("ok")
+})
+
+app.get("/auth/login", (req, res) => {
+	res.send("ok")
+})
+app.get("/auth/logout", (req, res) => {
+	res.send("ok")
 })
 
 // - Hooks -
 
 const hookFunc = async (req, res) => {
-	res.send({ hello: "world" })
+	res.sendStatus(204)
 }
 app.get("/hook/:id/:secret", hookFunc)
 app.post("/hook/:id/:secret", hookFunc)

package.json

@@ -2,12 +2,16 @@
   "name": "disgithook-backend",
   "version": "1.0.0",
   "private": true,
-  "description": "The backend for DisGitHook which handles settings & webhooks",
+  "description": "The backend for DisGitHook which handles settings & webhooks",
   "main": "index.js",
-  "author": "DisGitHook community",
   "license": "ISC",
+  "scripts": {
+    "nodemon": "nodemon index.js"
+  },
   "dependencies": {
-    "express": "^4.18.2"
+    "express": "^4.18.2",
+    "mysql2": "^3.6.2",
+    "nodemon": "^3.0.1"
   },
   "devDependencies": {
     "eslint": "^8.52.0",

util/oauth.js

@@ -0,0 +1,73 @@
+const { botId, botSecret, userAgent } = require("../config.json")
+
+const userCache = {}
+module.exports.getUser = async token => {
+	if (userCache[token]) return userCache[token]
+	const res = await fetch("https://discord.com/api/v10/users/@me", {
+		headers: {
+			"User-Agent": userAgent,
+			Authorization: "Bearer " + token,
+			Accept: "application/json"
+		}
+	})
+	if (!res.ok) return new Error("Couldnt get user data, failed with " + res.status + " " + res.statusText)
+	const json = await res.json()
+	userCache[token] = json
+	setTimeout(() => delete userCache[token], 1000 * 60 * 10)
+	return json
+}
+
+const guildCache = {}
+module.exports.getUserGuilds = async token => {
+	if (guildCache[token]) return guildCache[token]
+	const res = await fetch("https://discord.com/api/v10/users/@me/guilds", {
+		headers: {
+			"User-Agent": userAgent,
+			Authorization: "Bearer " + token,
+			Accept: "application/json"
+		}
+	})
+	if (!res.ok) {
+		console.log("Couldnt get guild data, failed with " + res.status + " " + res.statusText)
+		return new Error("Couldnt get guild data, failed with " + res.status + " " + res.statusText)
+	}
+	const json = await res.json()
+	guildCache[token] = json
+	setTimeout(() => delete guildCache[token], 1000 * 60 * 10)
+	return json
+}
+
+module.exports.getAccessToken = async (userId, tokens, bot) => {
+	if (Date.now() > tokens.expires_at) {
+		const body = new URLSearchParams({
+			client_id: botId,
+			client_secret: botSecret,
+			grant_type: "refresh_token",
+			refresh_token: tokens.refresh_token
+		})
+		const res = await fetch("https://discord.com/api/v10/oauth2/token", {
+			method: "POST",
+			body,
+			headers: {
+				"User-Agent": userAgent,
+				"Content-Type": "application/x-www-form-urlencoded",
+				Accept: "application/json"
+			}
+		})
+		if (res.ok) {
+			const newtokens = await res.json()
+			newtokens.expires_at = Date.now() + newtokens.expires_in * 1000
+			newtokens.type = tokens.type
+			if (tokens.username) newtokens.username = tokens.username
+			delete newtokens.expires_in
+
+			// TODO: Store "newtokens" in the database
+			return newtokens.access_token
+		} else {
+			console.log("Error refreshing access token: " + res.status + " " + res.statusText)
+			const json = await res.json()
+			console.log(json)
+		}
+	}
+	return tokens.access_token
+}