diff --git a/src/util/Message.ts b/src/util/Message.ts
index 0d3cdac7..27796997 100644
--- a/src/util/Message.ts
+++ b/src/util/Message.ts
@@ -1,14 +1,28 @@
-import { ChannelModel, MessageCreateEvent } from "@fosscord/server-util";
+import { ChannelModel, Embed, Message, MessageCreateEvent, MessageUpdateEvent } from "@fosscord/server-util";
import { Snowflake } from "@fosscord/server-util";
import { MessageModel } from "@fosscord/server-util";
import { PublicMemberProjection } from "@fosscord/server-util";
import { toObject } from "@fosscord/server-util";
import { getPermission } from "@fosscord/server-util";
-import { Message } from "@fosscord/server-util";
import { HTTPError } from "lambert-server";
+import fetch from "node-fetch";
+import cheerio from "cheerio";
import { emitEvent } from "./Event";
// TODO: check webhook, application, system author
+const LINK_REGEX = /https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)/g;
+
+const DEFAULT_FETCH_OPTIONS: any = {
+ redirect: "follow",
+ follow: 1,
+ headers: {
+ "user-agent": "Mozilla/5.0 (compatible; Discordbot/2.0; +https://discordapp.com)"
+ },
+ size: 1024 * 1024 * 1,
+ compress: true,
+ method: "GET"
+};
+
export async function handleMessage(opts: Partial<Message>) {
const channel = await ChannelModel.findOne({ id: opts.channel_id }, { guild_id: true, type: true, permission_overwrites: true }).exec();
if (!channel || !opts.channel_id) throw new HTTPError("Channel not found", 404);
@@ -43,6 +57,60 @@ export async function handleMessage(opts: Partial<Message>) {
};
}
+// TODO: cache link result in db
+export async function postHandleMessage(message: Message) {
+ var links = message.content?.match(LINK_REGEX);
+ if (!links) return;
+
+ const data = { ...message };
+ data.embeds = data.embeds.filter((x) => x.type !== "link");
+
+ links = links.slice(0, 5); // embed max 5 links
+
+ for (const link of links) {
+ try {
+ const request = await fetch(link, DEFAULT_FETCH_OPTIONS);
+
+ const text = await request.text();
+ const $ = cheerio.load(text);
+
+ const title = $('meta[property="og:title"]').attr("content");
+ const provider_name = $('meta[property="og:site_name"]').text();
+ const author_name = $('meta[property="article:author"]').attr("content");
+ const description = $('meta[property="og:description"]').attr("content") || $('meta[property="description"]').attr("content");
+ const image = $('meta[property="og:image"]').attr("content");
+ const url = $('meta[property="og:url"]').attr("content");
+ // TODO: color
+ const embed: Embed = {
+ provider: {
+ url: link,
+ name: provider_name
+ }
+ };
+
+ if (author_name) embed.author = { name: author_name };
+ if (image) embed.thumbnail = { proxy_url: image, url: image };
+ if (title) embed.title = title;
+ if (url) embed.url = url;
+ if (description) embed.description = description;
+
+ if (title || description) {
+ data.embeds.push(embed);
+ }
+ } catch (error) {}
+ }
+
+ await Promise.all([
+ emitEvent({
+ event: "MESSAGE_UPDATE",
+ guild_id: message.guild_id,
+ channel_id: message.channel_id,
+ data
+ } as MessageUpdateEvent),
+ MessageModel.updateOne({ id: message.id, channel_id: message.channel_id }, data).exec()
+ ]);
+}
+
export async function sendMessage(opts: Partial<Message>) {
const message = await handleMessage({ ...opts, id: Snowflake.generate(), timestamp: new Date() });
@@ -50,5 +118,7 @@ export async function sendMessage(opts: Partial<Message>) {
await emitEvent({ event: "MESSAGE_CREATE", channel_id: opts.channel_id, data, guild_id: message.guild_id } as MessageCreateEvent);
+ postHandleMessage(data); // no await as it shouldnt block the message send function
+
return data;
}
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