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[...nextauth].tsx
592 lines (538 loc) · 19.6 KB
/
[...nextauth].tsx
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import type { UserPermissionRole } from "@prisma/client";
import { IdentityProvider } from "@prisma/client";
import { readFileSync } from "fs";
import Handlebars from "handlebars";
import { SignJWT } from "jose";
import type { Session } from "next-auth";
import NextAuth from "next-auth";
import { encode } from "next-auth/jwt";
import type { 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 type { TransportOptions } from "nodemailer";
import nodemailer 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 { ErrorCode, isPasswordValid, verifyPassword } from "@calcom/lib/auth";
import { APP_NAME, IS_TEAM_BILLING_ENABLED, WEBAPP_URL, WEBSITE_URL } from "@calcom/lib/constants";
import { symmetricDecrypt } from "@calcom/lib/crypto";
import { defaultCookies } from "@calcom/lib/default-cookies";
import { randomString } from "@calcom/lib/random";
import rateLimit from "@calcom/lib/rateLimit";
import { serverConfig } from "@calcom/lib/serverConfig";
import slugify from "@calcom/lib/slugify";
import prisma from "@calcom/prisma";
import { teamMetadataSchema, userMetadata } from "@calcom/prisma/zod-utils";
import CalComAdapter from "@lib/auth/next-auth-custom-adapter";
import { GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, IS_GOOGLE_LOGIN_ENABLED } from "@server/lib/constants";
const transporter = nodemailer.createTransport<TransportOptions>({
...(serverConfig.transport as TransportOptions),
} as TransportOptions);
const usernameSlug = (username: string) => slugify(username) + "-" + randomString(6).toLowerCase();
const signJwt = async (payload: { email: string }) => {
const secret = new TextEncoder().encode(process.env.CALENDSO_ENCRYPTION_KEY);
return new SignJWT(payload)
.setProtectedHeader({ alg: "HS256" })
.setSubject(payload.email)
.setIssuedAt()
.setIssuer(WEBSITE_URL)
.setAudience(`${WEBSITE_URL}/auth/login`)
.setExpirationTime("2m")
.sign(secret);
};
const loginWithTotp = async (user: { email: string }) =>
`/auth/login?totp=${await signJwt({ email: user.email })}`;
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(),
},
select: {
role: true,
id: true,
username: true,
name: true,
email: true,
metadata: true,
identityProvider: true,
password: true,
twoFactorEnabled: true,
twoFactorSecret: true,
teams: {
include: {
team: true,
},
},
},
});
// Don't leak information about it being username or password that is invalid
if (!user) {
throw new Error(ErrorCode.IncorrectUsernamePassword);
}
if (user.identityProvider !== IdentityProvider.CAL && !credentials.totpCode) {
throw new Error(ErrorCode.ThirdPartyIdentityProviderEnabled);
}
if (!user.password && user.identityProvider !== IdentityProvider.CAL && !credentials.totpCode) {
throw new Error(ErrorCode.IncorrectUsernamePassword);
}
if (user.password) {
const isCorrectPassword = await verifyPassword(credentials.password, user.password);
if (!isCorrectPassword) {
throw new Error(ErrorCode.IncorrectUsernamePassword);
}
}
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 ${secret.length}`
);
throw new Error(ErrorCode.InternalServerError);
}
const isValidToken = authenticator.check(credentials.totpCode, secret);
if (!isValidToken) {
throw new Error(ErrorCode.IncorrectTwoFactorCode);
}
}
const limiter = rateLimit({
intervalInMs: 60 * 1000, // 1 minute
});
await limiter.check(10, user.email); // 10 requests per minute
// Check if the user you are logging into has any active teams
const hasActiveTeams =
user.teams.filter((m: { team: { metadata: unknown } }) => {
if (!IS_TEAM_BILLING_ENABLED) return true;
const metadata = teamMetadataSchema.safeParse(m.team.metadata);
if (metadata.success && metadata.data?.subscriptionId) return true;
return false;
}).length > 0;
// authentication success- but does it meet the minimum password requirements?
if (user.role === "ADMIN" && !isPasswordValid(credentials.password, false, true)) {
return {
id: user.id,
username: user.username,
email: user.email,
name: user.name,
role: "INACTIVE_ADMIN",
belongsToActiveTeam: hasActiveTeams,
};
}
return {
id: user.id,
username: user.username,
email: user.email,
name: user.name,
role: user.role,
belongsToActiveTeam: hasActiveTeams,
};
},
}),
ImpersonationProvider,
];
if (IS_GOOGLE_LOGIN_ENABLED) {
providers.push(
GoogleProvider({
clientId: GOOGLE_CLIENT_ID,
clientSecret: GOOGLE_CLIENT_SECRET,
allowDangerousEmailAccountLinking: true,
})
);
}
if (isSAMLLoginEnabled) {
providers.push({
id: "saml",
name: "BoxyHQ",
type: "oauth",
version: "2.0",
checks: ["pkce", "state"],
authorization: {
url: `${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 || ""} ${profile.lastName || ""}`.trim(),
email_verified: true,
};
},
options: {
clientId: "dummy",
clientSecret: "dummy",
},
allowDangerousEmailAccountLinking: true,
});
}
if (true) {
const emailsDir = path.resolve(process.cwd(), "..", "..", "packages/emails", "templates");
providers.push(
EmailProvider({
type: "email",
maxAge: 10 * 60 * 60, // Magic links are valid for 10 min only
// Here we setup the sendVerificationRequest that calls the email template with the identifier (email) and token to verify.
sendVerificationRequest: ({ identifier, url }) => {
const originalUrl = new URL(url);
const webappUrl = new URL(WEBAPP_URL);
if (originalUrl.origin !== webappUrl.origin) {
url = url.replace(originalUrl.origin, webappUrl.origin);
}
const emailFile = readFileSync(path.join(emailsDir, "confirm-email.html"), {
encoding: "utf8",
});
const emailTemplate = Handlebars.compile(emailFile);
transporter.sendMail({
from: `${process.env.EMAIL_FROM}` || APP_NAME,
to: identifier,
subject: "Your sign-in link for " + APP_NAME,
html: emailTemplate({
base_url: WEBAPP_URL,
signin_url: url,
email: identifier,
}),
});
},
})
);
}
function isNumber(n: string) {
return !isNaN(parseFloat(n)) && !isNaN(+n);
}
const calcomAdapter = CalComAdapter(prisma);
export default NextAuth({
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
adapter: calcomAdapter,
session: {
strategy: "jwt",
},
jwt: {
// decorate the native JWT encode function
// Impl. detail: We don't pass through as this function is called with encode/decode functions.
encode: async ({ token, maxAge, secret }) => {
if (token?.sub && isNumber(token.sub)) {
const user = await prisma.user.findFirst({
where: { id: Number(token.sub) },
select: { metadata: true },
});
// if no user is found, we still don't want to crash here.
if (user) {
const metadata = userMetadata.parse(user.metadata);
if (metadata?.sessionTimeout) {
maxAge = metadata.sessionTimeout / 60;
}
}
}
return encode({ secret, token, maxAge });
},
},
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! },
select: {
id: true,
username: true,
name: true,
email: true,
role: true,
},
});
if (!existingUser) {
return token;
}
return {
...existingUser,
...token,
};
};
if (!user) {
return await autoMergeIdentities();
}
if (account && account.type === "credentials") {
return {
...token,
id: user.id,
name: user.name,
username: user.username,
email: user.email,
role: user.role,
impersonatedByUID: user?.impersonatedByUID,
belongsToActiveTeam: user?.belongsToActiveTeam,
};
}
// 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 {
...token,
id: existingUser.id,
name: existingUser.name,
username: existingUser.username,
email: existingUser.email,
role: existingUser.role,
impersonatedByUID: token.impersonatedByUID as number,
belongsToActiveTeam: token?.belongsToActiveTeam as boolean,
};
}
return token;
},
async session({ session, token }) {
const hasValidLicense = await checkLicense(prisma);
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,
belongsToActiveTeam: token?.belongsToActiveTeam as boolean,
},
};
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;
}
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore-error TODO validate email_verified key on profile
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");
}
}
if (existingUser.twoFactorEnabled) {
return loginWithTotp(existingUser);
} else {
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 } });
if (existingUser.twoFactorEnabled) {
return loginWithTotp(existingUser);
} else {
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) {
if (existingUserWithEmail.twoFactorEnabled) {
return loginWithTotp(existingUserWithEmail);
} else {
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: String(user.id),
},
});
if (existingUserWithEmail.twoFactorEnabled) {
return loginWithTotp(existingUserWithEmail);
} else {
return true;
}
}
// User signs up with email/password and then tries to login with Google/SAML using the same email
if (
existingUserWithEmail.identityProvider === IdentityProvider.CAL &&
(idP === IdentityProvider.GOOGLE || idP === IdentityProvider.SAML)
) {
await prisma.user.update({
where: { email: existingUserWithEmail.email },
data: { password: null },
});
if (existingUserWithEmail.twoFactorEnabled) {
return loginWithTotp(existingUserWithEmail);
} else {
return true;
}
} else 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: String(user.id),
},
});
const linkAccountNewUserData = { ...account, userId: newUser.id };
await calcomAdapter.linkAccount(linkAccountNewUserData);
if (account.twoFactorEnabled) {
return loginWithTotp(newUser);
} else {
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;
},
},
});