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import {
ChannelModel,
EmojiModel,
getPermission,
MemberModel,
MessageModel,
MessageReactionAddEvent,
MessageReactionRemoveEvent,
PartialEmoji,
PublicUserProjection,
toObject,
UserModel
} from "@fosscord/server-util";
import { Request, Response, Router } from "express";
import { HTTPError } from "lambert-server";
import { emitEvent } from "../../../../../util/Event";
const router = Router();
// TODO: check if emoji is really an unicode emoji or a prperly encoded external emoji
function getEmoji(emoji: string): PartialEmoji {
emoji = decodeURIComponent(emoji);
const parts = emoji.includes(":") && emoji.split(":");
if (parts)
return {
name: parts[0],
id: parts[1]
};
return {
id: undefined,
name: emoji
};
}
router.get("/:emoji", async (req, res) => {
const { message_id, channel_id } = req.params;
const emoji = getEmoji(req.params.emoji);
const message = await MessageModel.findOne({ id: message_id, channel_id }).exec();
if (!message) throw new HTTPError("Message not found", 404);
const reaction = message.reactions.find((x) => (x.emoji.id === emoji.id && emoji.id) || x.emoji.name === emoji.name);
if (!reaction) throw new HTTPError("Reaction not found", 404);
const permissions = await getPermission(req.user_id, undefined, channel_id);
permissions.hasThrow("VIEW_CHANNEL");
const users = await UserModel.find({ id: { $in: reaction.user_ids } }, PublicUserProjection).exec();
res.json(toObject(users));
});
router.put("/:emoji/:user_id", async (req, res) => {
const { message_id, channel_id, user_id } = req.params;
if (user_id !== "@me") throw new HTTPError("Invalid user");
const emoji = getEmoji(req.params.emoji);
const channel = await ChannelModel.findOne({ id: channel_id }, { guild_id: true }).exec();
if (!channel) throw new HTTPError("Channel not found", 404);
const message = await MessageModel.findOne({ id: message_id, channel_id }).exec();
if (!message) throw new HTTPError("Message not found", 404);
const already_added = message.reactions.find((x) => (x.emoji.id === emoji.id && emoji.id) || x.emoji.name === emoji.name);
const permissions = await getPermission(req.user_id, undefined, channel_id);
permissions.hasThrow("READ_MESSAGE_HISTORY");
if (!already_added) permissions.hasThrow("ADD_REACTIONS");
if (emoji.id) {
const external_emoji = await EmojiModel.findOne({ id: emoji.id }).exec();
if (!external_emoji) throw new HTTPError("Emoji not found", 404);
if (!already_added) permissions.hasThrow("USE_EXTERNAL_EMOJIS");
emoji.animated = external_emoji.animated;
emoji.name = external_emoji.name;
}
if (already_added) {
if (already_added.user_ids.includes(req.user_id)) return res.sendStatus(204); // Do not throw an error ¯\_(ツ)_/¯ as discord also doesn't throw any error
already_added.count++;
} else message.reactions.push({ count: 1, emoji, user_ids: [req.user_id] });
await MessageModel.updateOne({ id: message_id, channel_id }, message).exec();
const member = channel.guild_id && (await MemberModel.findOne({ id: req.user_id }).exec());
await emitEvent({
event: "MESSAGE_REACTION_ADD",
channel_id,
guild_id: channel.guild_id,
data: {
user_id: req.user_id,
channel_id,
message_id,
guild_id: channel.guild_id,
emoji,
member
}
} as MessageReactionAddEvent);
res.sendStatus(204);
});
router.delete("/:emoji/:user_id", async (req, res) => {
var { message_id, channel_id, user_id } = req.params;
const emoji = getEmoji(req.params.emoji);
const channel = await ChannelModel.findOne({ id: channel_id }, { guild_id: true }).exec();
if (!channel) throw new HTTPError("Channel not found", 404);
const message = await MessageModel.findOne({ id: message_id, channel_id }).exec();
if (!message) throw new HTTPError("Message not found", 404);
const permissions = await getPermission(req.user_id, undefined, channel_id);
if (user_id === "@me") user_id = req.user_id;
else permissions.hasThrow("MANAGE_MESSAGES");
const already_added = message.reactions.find((x) => (x.emoji.id === emoji.id && emoji.id) || x.emoji.name === emoji.name);
if (!already_added || !already_added.user_ids.includes(user_id)) throw new HTTPError("Reaction not found", 404);
already_added.count--;
if (already_added.count <= 0) message.reactions.remove(already_added);
await MessageModel.updateOne({ id: message_id, channel_id }, message).exec();
await emitEvent({
event: "MESSAGE_REACTION_REMOVE",
channel_id,
guild_id: channel.guild_id,
data: {
user_id: req.user_id,
channel_id,
message_id,
guild_id: channel.guild_id,
emoji
}
} as MessageReactionRemoveEvent);
res.sendStatus(204);
});
export default router;
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