import { IdentityProvider, UserPermissionRole } from "@prisma/client"; import { readFileSync } from "fs"; import Handlebars from "handlebars"; import NextAuth, { Session } from "next-auth"; import { Provider } from "next-auth/providers"; import CredentialsProvider from "next-auth/providers/credentials"; import EmailProvider from "next-auth/providers/email"; import GoogleProvider from "next-auth/providers/google"; import nodemailer, { TransportOptions } from "nodemailer"; import { authenticator } from "otplib"; import path from "path"; import checkLicense from "@calcom/features/ee/common/server/checkLicense"; import ImpersonationProvider from "@calcom/features/ee/impersonation/lib/ImpersonationProvider"; import { hostedCal, isSAMLLoginEnabled } from "@calcom/features/ee/sso/lib/saml"; import { WEBAPP_URL } from "@calcom/lib/constants"; import { symmetricDecrypt } from "@calcom/lib/crypto"; import { defaultCookies } from "@calcom/lib/default-cookies"; import rateLimit from "@calcom/lib/rateLimit"; import { serverConfig } from "@calcom/lib/serverConfig"; import prisma from "@calcom/prisma"; import { ErrorCode, verifyPassword } from "@lib/auth"; import CalComAdapter from "@lib/auth/next-auth-custom-adapter"; import { randomString } from "@lib/random"; import slugify from "@lib/slugify"; import { GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, IS_GOOGLE_LOGIN_ENABLED } from "@server/lib/constants"; const transporter = nodemailer.createTransport({ ...(serverConfig.transport as TransportOptions), } as TransportOptions); const usernameSlug = (username: string) => slugify(username) + "-" + randomString(6).toLowerCase(); const providers: Provider[] = [ CredentialsProvider({ id: "credentials", name: "Cal.com", type: "credentials", credentials: { email: { label: "Email Address", type: "email", placeholder: "john.doe@example.com" }, password: { label: "Password", type: "password", placeholder: "Your super secure password" }, totpCode: { label: "Two-factor Code", type: "input", placeholder: "Code from authenticator app" }, }, async authorize(credentials) { if (!credentials) { console.error(`For some reason credentials are missing`); throw new Error(ErrorCode.InternalServerError); } const user = await prisma.user.findUnique({ where: { email: credentials.email.toLowerCase(), }, }); if (!user) { throw new Error(ErrorCode.UserNotFound); } if (user.identityProvider !== IdentityProvider.CAL) { throw new Error(ErrorCode.ThirdPartyIdentityProviderEnabled); } if (!user.password) { throw new Error(ErrorCode.UserMissingPassword); } const isCorrectPassword = await verifyPassword(credentials.password, user.password); if (!isCorrectPassword) { throw new Error(ErrorCode.IncorrectPassword); } if (user.twoFactorEnabled) { if (!credentials.totpCode) { throw new Error(ErrorCode.SecondFactorRequired); } if (!user.twoFactorSecret) { console.error(`Two factor is enabled for user ${user.id} but they have no secret`); throw new Error(ErrorCode.InternalServerError); } if (!process.env.CALENDSO_ENCRYPTION_KEY) { console.error(`"Missing encryption key; cannot proceed with two factor login."`); throw new Error(ErrorCode.InternalServerError); } const secret = symmetricDecrypt(user.twoFactorSecret, process.env.CALENDSO_ENCRYPTION_KEY); if (secret.length !== 32) { console.error( `Two factor secret decryption failed. Expected key with length 32 but got ${secret.length}` ); throw new Error(ErrorCode.InternalServerError); } const isValidToken = authenticator.check(credentials.totpCode, secret); if (!isValidToken) { throw new Error(ErrorCode.IncorrectTwoFactorCode); } } const limiter = rateLimit({ intervalInMs: 60 * 1000, // 1 minute }); await limiter.check(10, user.email); // 10 requests per minute return { id: user.id, username: user.username, email: user.email, name: user.name, role: user.role, }; }, }), ImpersonationProvider, ]; if (IS_GOOGLE_LOGIN_ENABLED) { providers.push( GoogleProvider({ clientId: GOOGLE_CLIENT_ID, clientSecret: GOOGLE_CLIENT_SECRET, }) ); } if (isSAMLLoginEnabled) { providers.push({ id: "saml", name: "BoxyHQ", type: "oauth", version: "2.0", checks: ["pkce", "state"], authorization: { url: `${WEBAPP_URL}/api/auth/saml/authorize`, params: { scope: "", response_type: "code", provider: "saml", }, }, token: { url: `${WEBAPP_URL}/api/auth/saml/token`, params: { grant_type: "authorization_code" }, }, userinfo: `${WEBAPP_URL}/api/auth/saml/userinfo`, profile: (profile) => { return { id: profile.id || "", firstName: profile.firstName || "", lastName: profile.lastName || "", email: profile.email || "", name: `${profile.firstName || ""} ${profile.lastName || ""}`.trim(), email_verified: true, }; }, options: { clientId: "dummy", clientSecret: "dummy", }, }); } if (true) { const emailsDir = path.resolve(process.cwd(), "..", "..", "packages/emails", "templates"); providers.push( EmailProvider({ type: "email", maxAge: 10 * 60 * 60, // Magic links are valid for 10 min only // Here we setup the sendVerificationRequest that calls the email template with the identifier (email) and token to verify. sendVerificationRequest: ({ identifier, url }) => { const originalUrl = new URL(url); const webappUrl = new URL(WEBAPP_URL); if (originalUrl.origin !== webappUrl.origin) { url = url.replace(originalUrl.origin, webappUrl.origin); } const emailFile = readFileSync(path.join(emailsDir, "confirm-email.html"), { encoding: "utf8", }); const emailTemplate = Handlebars.compile(emailFile); transporter.sendMail({ from: `${process.env.EMAIL_FROM}` || "Cal.com", to: identifier, subject: "Your sign-in link for Cal.com", html: emailTemplate({ base_url: WEBAPP_URL, signin_url: url, email: identifier, }), }); }, }) ); } const calcomAdapter = CalComAdapter(prisma); export default NextAuth({ // eslint-disable-next-line @typescript-eslint/ban-ts-comment // @ts-ignore adapter: calcomAdapter, session: { strategy: "jwt", }, cookies: defaultCookies(WEBAPP_URL?.startsWith("https://")), pages: { signIn: "/auth/login", signOut: "/auth/logout", error: "/auth/error", // Error code passed in query string as ?error= verifyRequest: "/auth/verify", // newUser: "/auth/new", // New users will be directed here on first sign in (leave the property out if not of interest) }, providers, callbacks: { async jwt({ token, user, account }) { const autoMergeIdentities = async () => { const existingUser = await prisma.user.findFirst({ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion where: { email: token.email! }, }); if (!existingUser) { return token; } return { id: existingUser.id, username: existingUser.username, name: existingUser.name, email: existingUser.email, role: existingUser.role, impersonatedByUID: token?.impersonatedByUID as number, }; }; if (!user) { return await autoMergeIdentities(); } if (account && account.type === "credentials") { return { id: user.id, name: user.name, username: user.username, email: user.email, role: user.role, impersonatedByUID: user?.impersonatedByUID as number, }; } // The arguments above are from the provider so we need to look up the // user based on those values in order to construct a JWT. if (account && account.type === "oauth" && account.provider && account.providerAccountId) { let idP: IdentityProvider = IdentityProvider.GOOGLE; if (account.provider === "saml") { idP = IdentityProvider.SAML; } const existingUser = await prisma.user.findFirst({ where: { AND: [ { identityProvider: idP, }, { identityProviderId: account.providerAccountId as string, }, ], }, }); if (!existingUser) { return await autoMergeIdentities(); } return { id: existingUser.id, name: existingUser.name, username: existingUser.username, email: existingUser.email, role: existingUser.role, impersonatedByUID: token.impersonatedByUID as number, }; } return token; }, async session({ session, token }) { const hasValidLicense = await checkLicense(process.env.CALCOM_LICENSE_KEY || ""); const calendsoSession: Session = { ...session, hasValidLicense, user: { ...session.user, id: token.id as number, name: token.name, username: token.username as string, role: token.role as UserPermissionRole, impersonatedByUID: token.impersonatedByUID as number, }, }; return calendsoSession; }, async signIn(params) { const { user, account, profile } = params; if (account.provider === "email") { return true; } // In this case we've already verified the credentials in the authorize // callback so we can sign the user in. if (account.type === "credentials") { return true; } if (account.type !== "oauth") { return false; } if (!user.email) { return false; } if (!user.name) { return false; } if (account.provider) { let idP: IdentityProvider = IdentityProvider.GOOGLE; if (account.provider === "saml") { idP = IdentityProvider.SAML; } user.email_verified = user.email_verified || user.emailVerified || profile.email_verified; if (!user.email_verified) { return "/auth/error?error=unverified-email"; } // Only google oauth on this path const provider = account.provider.toUpperCase() as IdentityProvider; const existingUser = await prisma.user.findFirst({ include: { accounts: { where: { provider: account.provider, }, }, }, where: { identityProvider: provider, identityProviderId: account.providerAccountId, }, }); if (existingUser) { // In this case there's an existing user and their email address // hasn't changed since they last logged in. if (existingUser.email === user.email) { try { // If old user without Account entry we link their google account if (existingUser.accounts.length === 0) { const linkAccountWithUserData = { ...account, userId: existingUser.id }; await calcomAdapter.linkAccount(linkAccountWithUserData); } } catch (error) { if (error instanceof Error) { console.error("Error while linking account of already existing user"); } } return true; } // If the email address doesn't match, check if an account already exists // with the new email address. If it does, for now we return an error. If // not, update the email of their account and log them in. const userWithNewEmail = await prisma.user.findFirst({ where: { email: user.email }, }); if (!userWithNewEmail) { await prisma.user.update({ where: { id: existingUser.id }, data: { email: user.email } }); return true; } else { return "/auth/error?error=new-email-conflict"; } } // If there's no existing user for this identity provider and id, create // a new account. If an account already exists with the incoming email // address return an error for now. const existingUserWithEmail = await prisma.user.findFirst({ where: { email: user.email }, }); if (existingUserWithEmail) { // if self-hosted then we can allow auto-merge of identity providers if email is verified if (!hostedCal && existingUserWithEmail.emailVerified) { return true; } // check if user was invited if ( !existingUserWithEmail.password && !existingUserWithEmail.emailVerified && !existingUserWithEmail.username ) { await prisma.user.update({ where: { email: user.email }, data: { // Slugify the incoming name and append a few random characters to // prevent conflicts for users with the same name. username: usernameSlug(user.name), emailVerified: new Date(Date.now()), name: user.name, identityProvider: idP, identityProviderId: user.id as string, }, }); return true; } if (existingUserWithEmail.identityProvider === IdentityProvider.CAL) { return "/auth/error?error=use-password-login"; } return "/auth/error?error=use-identity-login"; } const newUser = await prisma.user.create({ data: { // Slugify the incoming name and append a few random characters to // prevent conflicts for users with the same name. username: usernameSlug(user.name), emailVerified: new Date(Date.now()), name: user.name, email: user.email, identityProvider: idP, identityProviderId: user.id as string, }, }); const linkAccountNewUserData = { ...account, userId: newUser.id }; await calcomAdapter.linkAccount(linkAccountNewUserData); return true; } return false; }, async redirect({ url, baseUrl }) { // Allows relative callback URLs if (url.startsWith("/")) return `${baseUrl}${url}`; // Allows callback URLs on the same domain else if (new URL(url).hostname === new URL(WEBAPP_URL).hostname) return url; return baseUrl; }, }, });