mirror of
https://github.com/spacebarchat/server.git
synced 2026-04-01 02:45:40 +00:00
366 lines
9.2 KiB
TypeScript
366 lines
9.2 KiB
TypeScript
import {
|
|
Channel,
|
|
Embed,
|
|
emitEvent,
|
|
Guild,
|
|
Message,
|
|
MessageCreateEvent,
|
|
MessageUpdateEvent,
|
|
getPermission,
|
|
getRights,
|
|
CHANNEL_MENTION,
|
|
Snowflake,
|
|
USER_MENTION,
|
|
ROLE_MENTION,
|
|
Role,
|
|
EVERYONE_MENTION,
|
|
HERE_MENTION,
|
|
MessageType,
|
|
User,
|
|
Application,
|
|
Webhook,
|
|
Attachment,
|
|
Config,
|
|
Sticker,
|
|
MessageCreateSchema,
|
|
} from "@fosscord/util";
|
|
import { HTTPError } from "lambert-server";
|
|
import fetch from "node-fetch";
|
|
import cheerio from "cheerio";
|
|
import { In } from "typeorm";
|
|
const allow_empty = false;
|
|
// TODO: check webhook, application, system author, stickers
|
|
// TODO: embed gifs/videos/images
|
|
|
|
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; Fosscord/1.0; +https://github.com/fosscord/fosscord)",
|
|
},
|
|
// size: 1024 * 1024 * 5, // grabbed from config later
|
|
compress: true,
|
|
method: "GET",
|
|
};
|
|
|
|
export async function handleMessage(opts: MessageOptions): Promise<Message> {
|
|
const channel = await Channel.findOneOrFail({
|
|
where: { id: opts.channel_id },
|
|
relations: ["recipients"],
|
|
});
|
|
if (!channel || !opts.channel_id)
|
|
throw new HTTPError("Channel not found", 404);
|
|
|
|
const stickers = opts.sticker_ids
|
|
? await Sticker.find({ where: { id: In(opts.sticker_ids) } })
|
|
: undefined;
|
|
const message = Message.create({
|
|
id: Snowflake.generate(),
|
|
...opts,
|
|
sticker_items: stickers,
|
|
guild_id: channel.guild_id,
|
|
channel_id: opts.channel_id,
|
|
attachments: opts.attachments || [],
|
|
embeds: opts.embeds || [],
|
|
reactions: /*opts.reactions ||*/ [],
|
|
type: opts.type ?? 0,
|
|
});
|
|
|
|
if (
|
|
message.content &&
|
|
message.content.length > Config.get().limits.message.maxCharacters
|
|
) {
|
|
throw new HTTPError("Content length over max character limit");
|
|
}
|
|
|
|
if (opts.author_id) {
|
|
message.author = await User.getPublicUser(opts.author_id);
|
|
const rights = await getRights(opts.author_id);
|
|
rights.hasThrow("SEND_MESSAGES");
|
|
}
|
|
if (opts.application_id) {
|
|
message.application = await Application.findOneOrFail({
|
|
where: { id: opts.application_id },
|
|
});
|
|
}
|
|
if (opts.webhook_id) {
|
|
message.webhook = await Webhook.findOneOrFail({
|
|
where: { id: opts.webhook_id },
|
|
});
|
|
}
|
|
|
|
const permission = await getPermission(
|
|
opts.author_id,
|
|
channel.guild_id,
|
|
opts.channel_id,
|
|
);
|
|
permission.hasThrow("SEND_MESSAGES");
|
|
if (permission.cache.member) {
|
|
message.member = permission.cache.member;
|
|
}
|
|
|
|
if (opts.tts) permission.hasThrow("SEND_TTS_MESSAGES");
|
|
if (opts.message_reference) {
|
|
permission.hasThrow("READ_MESSAGE_HISTORY");
|
|
// code below has to be redone when we add custom message routing
|
|
if (message.guild_id !== null) {
|
|
const guild = await Guild.findOneOrFail({
|
|
where: { id: channel.guild_id },
|
|
});
|
|
if (!guild.features.includes("CROSS_CHANNEL_REPLIES")) {
|
|
if (opts.message_reference.guild_id !== channel.guild_id)
|
|
throw new HTTPError(
|
|
"You can only reference messages from this guild",
|
|
);
|
|
if (opts.message_reference.channel_id !== opts.channel_id)
|
|
throw new HTTPError(
|
|
"You can only reference messages from this channel",
|
|
);
|
|
}
|
|
}
|
|
/** Q: should be checked if the referenced message exists? ANSWER: NO
|
|
otherwise backfilling won't work **/
|
|
// @ts-ignore
|
|
message.type = MessageType.REPLY;
|
|
}
|
|
|
|
// TODO: stickers/activity
|
|
if (
|
|
!allow_empty &&
|
|
!opts.content &&
|
|
!opts.embeds?.length &&
|
|
!opts.attachments?.length &&
|
|
!opts.sticker_ids?.length
|
|
) {
|
|
throw new HTTPError("Empty messages are not allowed", 50006);
|
|
}
|
|
|
|
var content = opts.content;
|
|
var mention_channel_ids = [] as string[];
|
|
var mention_role_ids = [] as string[];
|
|
var mention_user_ids = [] as string[];
|
|
var mention_everyone = false;
|
|
|
|
if (content) {
|
|
// TODO: explicit-only mentions
|
|
message.content = content.trim();
|
|
for (const [_, mention] of content.matchAll(CHANNEL_MENTION)) {
|
|
if (!mention_channel_ids.includes(mention))
|
|
mention_channel_ids.push(mention);
|
|
}
|
|
|
|
for (const [_, mention] of content.matchAll(USER_MENTION)) {
|
|
if (!mention_user_ids.includes(mention))
|
|
mention_user_ids.push(mention);
|
|
}
|
|
|
|
await Promise.all(
|
|
Array.from(content.matchAll(ROLE_MENTION)).map(
|
|
async ([_, mention]) => {
|
|
const role = await Role.findOneOrFail({
|
|
where: { id: mention, guild_id: channel.guild_id },
|
|
});
|
|
if (role.mentionable || permission.has("MANAGE_ROLES")) {
|
|
mention_role_ids.push(mention);
|
|
}
|
|
},
|
|
),
|
|
);
|
|
|
|
if (permission.has("MENTION_EVERYONE")) {
|
|
mention_everyone =
|
|
!!content.match(EVERYONE_MENTION) ||
|
|
!!content.match(HERE_MENTION);
|
|
}
|
|
}
|
|
|
|
message.mention_channels = mention_channel_ids.map((x) =>
|
|
Channel.create({ id: x }),
|
|
);
|
|
message.mention_roles = mention_role_ids.map((x) => Role.create({ id: x }));
|
|
message.mentions = mention_user_ids.map((x) => User.create({ id: x }));
|
|
message.mention_everyone = mention_everyone;
|
|
|
|
// TODO: check and put it all in the body
|
|
|
|
return 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, 20) as RegExpMatchArray; // embed max 20 links — TODO: make this configurable with instance policies
|
|
|
|
const { endpointPublic, resizeWidthMax, resizeHeightMax } =
|
|
Config.get().cdn;
|
|
|
|
for (const link of links) {
|
|
try {
|
|
const request = await fetch(link, {
|
|
...DEFAULT_FETCH_OPTIONS,
|
|
size: Config.get().limits.message.maxEmbedDownloadSize,
|
|
});
|
|
|
|
let embed: Embed;
|
|
|
|
const type = request.headers.get("content-type");
|
|
if (type?.indexOf("image") == 0) {
|
|
embed = {
|
|
provider: {
|
|
url: link,
|
|
name: new URL(link).hostname,
|
|
},
|
|
image: {
|
|
// can't be bothered rn
|
|
proxy_url: `${endpointPublic}/external/resize/${encodeURIComponent(
|
|
link,
|
|
)}?width=500&height=400`,
|
|
url: link,
|
|
width: 500,
|
|
height: 400,
|
|
},
|
|
};
|
|
data.embeds.push(embed);
|
|
} else {
|
|
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 width =
|
|
parseInt(
|
|
$('meta[property="og:image:width"]').attr("content") ||
|
|
"",
|
|
) || undefined;
|
|
const height =
|
|
parseInt(
|
|
$('meta[property="og:image:height"]').attr("content") ||
|
|
"",
|
|
) || undefined;
|
|
|
|
const url = $('meta[property="og:url"]').attr("content");
|
|
// TODO: color
|
|
embed = {
|
|
provider: {
|
|
url: link,
|
|
name: provider_name,
|
|
},
|
|
};
|
|
|
|
const resizeWidth = Math.min(resizeWidthMax ?? 1, width ?? 100);
|
|
const resizeHeight = Math.min(
|
|
resizeHeightMax ?? 1,
|
|
height ?? 100,
|
|
);
|
|
if (author_name) embed.author = { name: author_name };
|
|
if (image)
|
|
embed.thumbnail = {
|
|
proxy_url: `${endpointPublic}/external/resize/${encodeURIComponent(
|
|
image,
|
|
)}?width=${resizeWidth}&height=${resizeHeight}`,
|
|
url: image,
|
|
width: width,
|
|
height: height,
|
|
};
|
|
if (title) embed.title = title;
|
|
if (url) embed.url = url;
|
|
if (description) embed.description = description;
|
|
|
|
const approvedProviders = [
|
|
"media4.giphy.com",
|
|
"c.tenor.com",
|
|
// todo: make configurable? don't really care tho
|
|
];
|
|
|
|
// very bad code below
|
|
// don't care lol
|
|
if (
|
|
embed?.thumbnail?.url &&
|
|
approvedProviders.indexOf(
|
|
new URL(embed.thumbnail.url).hostname,
|
|
) !== -1
|
|
) {
|
|
embed = {
|
|
provider: {
|
|
url: link,
|
|
name: new URL(link).hostname,
|
|
},
|
|
image: {
|
|
proxy_url: `${endpointPublic}/external/resize/${encodeURIComponent(
|
|
image!,
|
|
)}?width=${resizeWidth}&height=${resizeHeight}`,
|
|
url: image,
|
|
width: width,
|
|
height: height,
|
|
},
|
|
};
|
|
}
|
|
|
|
if (title || description) {
|
|
data.embeds.push(embed);
|
|
}
|
|
}
|
|
} catch (error) {}
|
|
}
|
|
|
|
await Promise.all([
|
|
emitEvent({
|
|
event: "MESSAGE_UPDATE",
|
|
channel_id: message.channel_id,
|
|
data,
|
|
} as MessageUpdateEvent),
|
|
Message.update(
|
|
{ id: message.id, channel_id: message.channel_id },
|
|
{ embeds: data.embeds },
|
|
),
|
|
]);
|
|
}
|
|
|
|
export async function sendMessage(opts: MessageOptions) {
|
|
const message = await handleMessage({ ...opts, timestamp: new Date() });
|
|
|
|
await Promise.all([
|
|
Message.insert(message),
|
|
emitEvent({
|
|
event: "MESSAGE_CREATE",
|
|
channel_id: opts.channel_id,
|
|
data: message.toJSON(),
|
|
} as MessageCreateEvent),
|
|
]);
|
|
|
|
postHandleMessage(message).catch((e) => {}); // no await as it should catch error non-blockingly
|
|
|
|
return message;
|
|
}
|
|
|
|
interface MessageOptions extends MessageCreateSchema {
|
|
id?: string;
|
|
type?: MessageType;
|
|
pinned?: boolean;
|
|
author_id?: string;
|
|
webhook_id?: string;
|
|
application_id?: string;
|
|
embeds?: Embed[];
|
|
channel_id?: string;
|
|
attachments?: Attachment[];
|
|
edited_timestamp?: Date;
|
|
timestamp?: Date;
|
|
}
|