RocketChat/Rocket.Chat

import { Invites, Rooms } from '@rocket.chat/models';
import { Meteor } from 'meteor/meteor';

export const validateInviteToken = async (token: string) => {
    if (!token || typeof token !== 'string') {
        throw new Meteor.Error('error-invalid-token', 'The invite token is invalid.', {
            method: 'validateInviteToken',
            field: 'token',
        });
    }

    const inviteData = await Invites.findOneById(token);
    if (!inviteData) {
        throw new Meteor.Error('error-invalid-token', 'The invite token is invalid.', {
            method: 'validateInviteToken',
            field: 'token',
        });
    }

    const room = await Rooms.findOneById(inviteData.rid);
    if (!room) {
        throw new Meteor.Error('error-invalid-room', 'The invite token is invalid.', {
            method: 'validateInviteToken',
            field: 'rid',
        });
    }

    if (inviteData.expires && new Date(inviteData.expires).getTime() <= Date.now()) {
        throw new Meteor.Error('error-invite-expired', 'The invite token has expired.', {
            method: 'validateInviteToken',
            field: 'expires',
        });
    }

    if (inviteData.maxUses > 0 && inviteData.uses >= inviteData.maxUses) {
        throw new Meteor.Error('error-invite-expired', 'The invite token has expired.', {
            method: 'validateInviteToken',
            field: 'maxUses',
        });
    }

    return {
        inviteData,
        room,
    };
};