feat: add things

packages/bot/package.json

@@ -13,11 +13,13 @@
   "devDependencies": {
     "@cloudflare/workers-types": "^3.17.0",
     "@types/jest": "^29.1.2",
-    "discord-api-types": "^0.37.14",
     "esbuild": "^0.15.11",
     "eslint": "^8.25.0",
     "jest": "^29.2.0",
     "miniflare": "^2.10.0",
     "typescript": "^4.8.4"
+  },
+  "dependencies": {
+    "discord-api-types": "^0.37.37"
   }
 }

packages/bot/src/commands/setup.ts

@@ -1,5 +1,15 @@
+import { InteractionResponseType } from "discord-api-types/v10";
 import { Command } from "../structs/Command";
+import respond from "../utils/respond";
 
 new Command({
 	name: "setup",
+	run: async () => {
+		return respond({
+			type: InteractionResponseType.ChannelMessageWithSource,
+			data: {
+				content: "Setup",
+			},
+		});
+	},
 });

packages/bot/src/index.ts

@@ -1,11 +1,51 @@
 import "./commands/setup";
-import { COMMANDS } from "./registers";
+import {
+	APIApplicationCommandInteraction,
+	APIMessageComponentInteraction,
+	APIPingInteraction,
+	InteractionResponseType,
+	InteractionType,
+} from "discord-api-types/v10";
+import { COMMANDS, COMPONENTS } from "./registers";
+import { verify } from "./utils/verify";
+import respond from "./utils/respond";
 
 console.log(COMMANDS);
 
 export default {
-	fetch: (request: Request) => {
-		console.log(request);
-		return new Response("asda");
+	fetch: async (request: Request) => {
+		if (
+			!request.headers.get("X-Signature-Ed25519") ||
+			!request.headers.get("X-Signature-Timestamp")
+		)
+			return Response.redirect("https://xhyrom.dev");
+		if (!(await verify(request)))
+			return new Response("Invalid request signature", { status: 401 });
+
+		const interaction = (await request.json()) as
+			| APIPingInteraction
+			| APIApplicationCommandInteraction
+			| APIMessageComponentInteraction;
+
+		if (interaction.type === InteractionType.Ping)
+			return respond({
+				type: InteractionResponseType.Pong,
+			});
+
+		if (interaction.type === InteractionType.ApplicationCommand) {
+			const command = COMMANDS.find(
+				(cmd) => cmd.name === interaction.data.name,
+			);
+
+			if (!command) return new Response("Unknown command", { status: 404 });
+			return command.run(interaction);
+		}
+
+		const component = COMPONENTS.find(
+			(cmp) => cmp.id === interaction.data.custom_id,
+		);
+
+		if (!component) return new Response("Unknown component", { status: 404 });
+		return component.run(interaction);
 	},
 };

packages/bot/src/registers.ts

@@ -1,13 +1,13 @@
 import { Command } from "./structs/Command";
-import { Listener } from "./structs/Listener";
+import { Component } from "./structs/Component";
 
 export const COMMANDS: Command[] = [];
-export const LISTENERS: Listener[] = [];
+export const COMPONENTS: Component[] = [];
 
 export const registerCommand = (command: Command) => {
 	COMMANDS.push(command);
 };
 
-export const registerListener = (listener: Listener) => {
-	LISTENERS.push(listener);
+export const registerComponent = (component: Component) => {
+	COMPONENTS.push(component);
 };

packages/bot/src/structs/Command.ts

@@ -1,14 +1,20 @@
+import { APIApplicationCommandInteraction } from "discord-api-types/v10";
 import { registerCommand } from "../registers";
 
 interface CommandOptions {
 	name: string;
+	run: (interaction: APIApplicationCommandInteraction) => Promise<Response>;
 }
 
 export class Command {
 	public name: string;
+	public run: (
+		interaction: APIApplicationCommandInteraction,
+	) => Promise<Response>;
 
 	constructor(options: CommandOptions) {
 		this.name = options.name;
+		this.run = options.run;
 
 		registerCommand(this);
 	}

packages/bot/src/structs/Component.ts

@@ -0,0 +1,21 @@
+import { APIMessageComponentInteraction } from "discord-api-types/v10";
+import { registerComponent } from "../registers";
+
+interface ComponentOptions {
+	id: string;
+	run: (interaction: APIMessageComponentInteraction) => Promise<Response>;
+}
+
+export class Component {
+	public id: string;
+	public run: (
+		interaction: APIMessageComponentInteraction,
+	) => Promise<Response>;
+
+	constructor(options: ComponentOptions) {
+		this.id = options.id;
+		this.run = options.run;
+
+		registerComponent(this);
+	}
+}

packages/bot/src/structs/Listener.ts

@@ -1,18 +0,0 @@
-import { registerListener } from "../registers";
-
-interface ListenerOptions {
-	name: string;
-	once: boolean | undefined;
-}
-
-export class Listener {
-	public name: string;
-	public once: boolean;
-
-	constructor(options: ListenerOptions) {
-		this.name = options.name;
-		this.once = options.once ?? false;
-
-		registerListener(this);
-	}
-}

packages/bot/src/types.d.ts

@@ -0,0 +1,3 @@
+// secrets: wrangler secret put <name>
+declare const publicKey: string;
+declare const token: string;

packages/bot/src/utils/respond.ts

@@ -0,0 +1,7 @@
+import { APIInteractionResponse } from "discord-api-types/v10";
+
+export default function (response: APIInteractionResponse) {
+	return new Response(JSON.stringify(response), {
+		headers: { "content-type": "application/json" },
+	});
+}

packages/bot/src/utils/verify.ts

@@ -0,0 +1,38 @@
+// from https://gist.github.com/devsnek/77275f6e3f810a9545440931ed314dc1
+
+"use strict";
+
+function hex2bin(hex: string) {
+	const buf = new Uint8Array(Math.ceil(hex.length / 2));
+	for (let i = 0; i < buf.length; i++) {
+		buf[i] = parseInt(hex.substring(i * 2, i * 2 + 2), 16);
+	}
+	return buf;
+}
+
+const PUBLIC_KEY = crypto.subtle.importKey(
+	"raw",
+	hex2bin(publicKey),
+	{
+		name: "NODE-ED25519",
+		namedCurve: "NODE-ED25519",
+	},
+	true,
+	["verify"],
+);
+
+const encoder = new TextEncoder();
+
+export async function verify(request: Request) {
+	// rome-ignore lint/style/noNonNullAssertion: its fine
+	const signature = hex2bin(request.headers.get("X-Signature-Ed25519")!);
+	const timestamp = request.headers.get("X-Signature-Timestamp");
+	const unknown = await request.clone().text();
+
+	return await crypto.subtle.verify(
+		"NODE-ED25519",
+		await PUBLIC_KEY,
+		signature,
+		encoder.encode(timestamp + unknown),
+	);
+}

pnpm-lock.yaml

@@ -9,6 +9,10 @@ importers:
         version: 12.0.0
 
   packages/bot:
+    dependencies:
+      discord-api-types:
+        specifier: ^0.37.37
+        version: 0.37.37
     devDependencies:
       '@cloudflare/workers-types':
         specifier: ^3.17.0
@@ -16,9 +20,6 @@ importers:
       '@types/jest':
         specifier: ^29.1.2
         version: 29.1.2
-      discord-api-types:
-        specifier: ^0.37.14
-        version: 0.37.14
       esbuild:
         specifier: ^0.15.11
         version: 0.15.11
@@ -2324,9 +2325,9 @@ packages:
       path-type: 4.0.0
     dev: true
 
-  /discord-api-types@0.37.14:
-    resolution: {integrity: sha512-byBH7SfDCMJwxdqeS8k5sihltH88/YPhuwx+vF2cftSxFLdxyHyU/ZxDL3bq+LB2c4ls/TymE76/ISlLfniUXg==}
-    dev: true
+  /discord-api-types@0.37.37:
+    resolution: {integrity: sha512-LDMBKzl/zbvHO/yCzno5hevuA6lFIXJwdKSJZQrB+1ToDpFfN9thK+xxgZNR4aVkI7GHRDja0p4Sl2oYVPnHYg==}
+    dev: false
 
   /dlv@1.1.3:
     resolution: {integrity: sha512-+HlytyjlPKnIG8XuRG8WvmBP8xs8P71y+SKKS6ZXWoEgLuePxtDoUEiH7WkdePWrQ5JBpE6aoVqfZfJUQkjXwA==}

rome.json

@@ -3,6 +3,9 @@
   "organizeImports": {
     "enabled": false
   },
+  "files": {
+    "ignore": ["dist/**"]
+  },
   "linter": {
     "enabled": true,
     "rules": {