fosrl.pangolin/server/routers/user/inviteUser.ts

import { Request, Response, NextFunction } from "express";
import { z } from "zod";
import { db } from "@server/db";
import { userInvites, userOrgs, users } from "@server/db/schema";
import { and, eq } from "drizzle-orm";
import response from "@server/utils/response";
import HttpCode from "@server/types/HttpCode";
import createHttpError from "http-errors";
import { ActionsEnum, checkUserActionPermission } from "@server/auth/actions";
import logger from "@server/logger";
import { alphabet, generateRandomString } from "oslo/crypto";
import { createDate, TimeSpan } from "oslo";
import config from "@server/config";
import { hashPassword } from "@server/auth/password";
import { fromError } from "zod-validation-error";

const inviteUserParamsSchema = z.object({
    orgId: z.string(),
});

const inviteUserBodySchema = z.object({
    email: z.string().email(),
    roleId: z.number(),
    validHours: z.number().gt(0).lte(168),
});

export type InviteUserBody = z.infer<typeof inviteUserBodySchema>;

export type InviteUserResponse = {
    inviteLink: string;
    expiresAt: number;
};

export async function inviteUser(
    req: Request,
    res: Response,
    next: NextFunction
): Promise<any> {
    try {
        const parsedParams = inviteUserParamsSchema.safeParse(req.params);
        if (!parsedParams.success) {
            return next(
                createHttpError(
                    HttpCode.BAD_REQUEST,
                    fromError(parsedParams.error).toString()
                )
            );
        }

        const parsedBody = inviteUserBodySchema.safeParse(req.body);
        if (!parsedBody.success) {
            return next(
                createHttpError(
                    HttpCode.BAD_REQUEST,
                    fromError(parsedBody.error).toString()
                )
            );
        }

        const { orgId } = parsedParams.data;
        const { email, validHours, roleId } = parsedBody.data;

        const hasPermission = await checkUserActionPermission(
            ActionsEnum.inviteUser,
            req
        );
        if (!hasPermission) {
            return next(
                createHttpError(
                    HttpCode.FORBIDDEN,
                    "User does not have permission to perform this action"
                )
            );
        }

        const existingUser = await db
            .select()
            .from(users)
            .innerJoin(userOrgs, eq(users.userId, userOrgs.userId))
            .where(eq(users.email, email))
            .limit(1);
        if (existingUser.length && existingUser[0].userOrgs?.orgId === orgId) {
            return next(
                createHttpError(
                    HttpCode.BAD_REQUEST,
                    "User is already a member of this organization"
                )
            );
        }

        const inviteId = generateRandomString(
            10,
            alphabet("a-z", "A-Z", "0-9")
        );
        const token = generateRandomString(32, alphabet("a-z", "A-Z", "0-9"));
        const expiresAt = createDate(new TimeSpan(validHours, "h")).getTime();

        const tokenHash = await hashPassword(token);

        // delete any existing invites for this email
        await db
            .delete(userInvites)
            .where(
                and(eq(userInvites.email, email), eq(userInvites.orgId, orgId))
            )
            .execute();

        await db.insert(userInvites).values({
            inviteId,
            orgId,
            email,
            expiresAt,
            tokenHash,
            roleId,
        });

        const inviteLink = `${config.app.base_url}/invite?token=${inviteId}-${token}`;

        return response<InviteUserResponse>(res, {
            data: {
                inviteLink,
                expiresAt,
            },
            success: true,
            error: false,
            message: "User invited successfully",
            status: HttpCode.OK,
        });
    } catch (error) {
        logger.error(error);
        return next(
            createHttpError(HttpCode.INTERNAL_SERVER_ERROR, "An error occurred")
        );
    }
}