feat: add organisation sso portal (#1946)

Allow organisations to manage an SSO OIDC compliant portal. This method
is intended to streamline the onboarding process and paves the way to
allow organisations to manage their members in a more strict way.

packages/auth/server/lib/utils/delete-account-provider.ts

@@ -0,0 +1,37 @@
+import { UserSecurityAuditLogType } from '@prisma/client';
+import type { Context } from 'hono';
+
+import { ORGANISATION_USER_ACCOUNT_TYPE } from '@documenso/lib/constants/organisations';
+import { prisma } from '@documenso/prisma';
+
+import { getSession } from './get-session';
+
+export const deleteAccountProvider = async (c: Context, accountId: string): Promise<void> => {
+  const { user } = await getSession(c);
+
+  const requestMeta = c.get('requestMetadata');
+
+  await prisma.$transaction(async (tx) => {
+    const deletedAccountProvider = await tx.account.delete({
+      where: {
+        id: accountId,
+        userId: user.id,
+      },
+      select: {
+        type: true,
+      },
+    });
+
+    await tx.userSecurityAuditLog.create({
+      data: {
+        userId: user.id,
+        ipAddress: requestMeta.ipAddress,
+        userAgent: requestMeta.userAgent,
+        type:
+          deletedAccountProvider.type === ORGANISATION_USER_ACCOUNT_TYPE
+            ? UserSecurityAuditLogType.ORGANISATION_SSO_UNLINK
+            : UserSecurityAuditLogType.ACCOUNT_SSO_UNLINK,
+      },
+    });
+  });
+};

packages/auth/server/lib/utils/get-accounts.ts

@@ -0,0 +1,32 @@
+import type { Context } from 'hono';
+
+import { prisma } from '@documenso/prisma';
+
+import { getSession } from './get-session';
+
+export type PartialAccount = {
+  id: string;
+  userId: number;
+  type: string;
+  provider: string;
+  providerAccountId: string;
+  createdAt: Date;
+};
+
+export const getAccounts = async (c: Context | Request): Promise<PartialAccount[]> => {
+  const { user } = await getSession(c);
+
+  return await prisma.account.findMany({
+    where: {
+      userId: user.id,
+    },
+    select: {
+      id: true,
+      userId: true,
+      type: true,
+      provider: true,
+      providerAccountId: true,
+      createdAt: true,
+    },
+  });
+};

packages/auth/server/lib/utils/handle-oauth-callback-url.ts

@@ -20,70 +20,10 @@ type HandleOAuthCallbackUrlOptions = {
 export const handleOAuthCallbackUrl = async (options: HandleOAuthCallbackUrlOptions) => {
   const { c, clientOptions } = options;
 
-  if (!clientOptions.clientId || !clientOptions.clientSecret) {
-    throw new AppError(AppErrorCode.NOT_SETUP);
-  }
-
-  const { token_endpoint } = await getOpenIdConfiguration(clientOptions.wellKnownUrl, {
-    requiredScopes: clientOptions.scope,
-  });
-
-  const oAuthClient = new OAuth2Client(
-    clientOptions.clientId,
-    clientOptions.clientSecret,
-    clientOptions.redirectUrl,
-  );
-
   const requestMeta = c.get('requestMetadata');
 
-  const code = c.req.query('code');
-  const state = c.req.query('state');
-
-  const storedState = deleteCookie(c, `${clientOptions.id}_oauth_state`);
-  const storedCodeVerifier = deleteCookie(c, `${clientOptions.id}_code_verifier`);
-  const storedRedirectPath = deleteCookie(c, `${clientOptions.id}_redirect_path`) ?? '';
-
-  if (!code || !storedState || state !== storedState || !storedCodeVerifier) {
-    throw new AppError(AppErrorCode.INVALID_REQUEST, {
-      message: 'Invalid or missing state',
-    });
-  }
-
-  // eslint-disable-next-line prefer-const
-  let [redirectState, redirectPath] = storedRedirectPath.split(' ');
-
-  if (redirectState !== storedState || !redirectPath) {
-    redirectPath = '/';
-  }
-
-  const tokens = await oAuthClient.validateAuthorizationCode(
-    token_endpoint,
-    code,
-    storedCodeVerifier,
-  );
-
-  const accessToken = tokens.accessToken();
-  const accessTokenExpiresAt = tokens.accessTokenExpiresAt();
-  const idToken = tokens.idToken();
-
-  // eslint-disable-next-line @typescript-eslint/consistent-type-assertions
-  const claims = decodeIdToken(tokens.idToken()) as Record<string, unknown>;
-
-  const email = claims.email;
-  const name = claims.name;
-  const sub = claims.sub;
-
-  if (typeof email !== 'string' || typeof name !== 'string' || typeof sub !== 'string') {
-    throw new AppError(AuthenticationErrorCode.InvalidRequest, {
-      message: 'Invalid claims',
-    });
-  }
-
-  if (claims.email_verified !== true && !clientOptions.bypassEmailVerification) {
-    throw new AppError(AuthenticationErrorCode.UnverifiedEmail, {
-      message: 'Account email is not verified',
-    });
-  }
+  const { email, name, sub, accessToken, accessTokenExpiresAt, idToken, redirectPath } =
+    await validateOauth({ c, clientOptions });
 
   // Find the account if possible.
   const existingAccount = await prisma.account.findFirst({
@@ -199,3 +139,92 @@ export const handleOAuthCallbackUrl = async (options: HandleOAuthCallbackUrlOpti
 
   return c.redirect(redirectPath, 302);
 };
+
+export const validateOauth = async (options: HandleOAuthCallbackUrlOptions) => {
+  const { c, clientOptions } = options;
+
+  if (!clientOptions.clientId || !clientOptions.clientSecret) {
+    throw new AppError(AppErrorCode.NOT_SETUP);
+  }
+
+  const { token_endpoint } = await getOpenIdConfiguration(clientOptions.wellKnownUrl, {
+    requiredScopes: clientOptions.scope,
+  });
+
+  const oAuthClient = new OAuth2Client(
+    clientOptions.clientId,
+    clientOptions.clientSecret,
+    clientOptions.redirectUrl,
+  );
+
+  const code = c.req.query('code');
+  const state = c.req.query('state');
+
+  const storedState = deleteCookie(c, `${clientOptions.id}_oauth_state`);
+  const storedCodeVerifier = deleteCookie(c, `${clientOptions.id}_code_verifier`);
+  const storedRedirectPath = deleteCookie(c, `${clientOptions.id}_redirect_path`) ?? '';
+
+  if (!code || !storedState || state !== storedState || !storedCodeVerifier) {
+    throw new AppError(AppErrorCode.INVALID_REQUEST, {
+      message: 'Invalid or missing state',
+    });
+  }
+
+  // eslint-disable-next-line prefer-const
+  let [redirectState, redirectPath] = storedRedirectPath.split(' ');
+
+  if (redirectState !== storedState || !redirectPath) {
+    redirectPath = '/';
+  }
+
+  const tokens = await oAuthClient.validateAuthorizationCode(
+    token_endpoint,
+    code,
+    storedCodeVerifier,
+  );
+
+  const accessToken = tokens.accessToken();
+  const accessTokenExpiresAt = tokens.accessTokenExpiresAt();
+  const idToken = tokens.idToken();
+
+  // eslint-disable-next-line @typescript-eslint/consistent-type-assertions
+  const claims = decodeIdToken(tokens.idToken()) as Record<string, unknown>;
+
+  const email = claims.email;
+  const name = claims.name;
+  const sub = claims.sub;
+
+  if (typeof email !== 'string') {
+    throw new AppError(AuthenticationErrorCode.InvalidRequest, {
+      message: 'Missing email',
+    });
+  }
+
+  if (typeof name !== 'string') {
+    throw new AppError(AuthenticationErrorCode.InvalidRequest, {
+      message: 'Missing name',
+    });
+  }
+
+  if (typeof sub !== 'string') {
+    throw new AppError(AuthenticationErrorCode.InvalidRequest, {
+      message: 'Missing sub claim',
+    });
+  }
+
+  if (claims.email_verified !== true && !clientOptions.bypassEmailVerification) {
+    throw new AppError(AuthenticationErrorCode.UnverifiedEmail, {
+      message: 'Account email is not verified',
+    });
+  }
+
+  return {
+    email,
+    name,
+    sub,
+    accessToken,
+    accessTokenExpiresAt,
+    idToken,
+    redirectPath,
+  };
+};

packages/auth/server/lib/utils/handle-oauth-organisation-callback-url.ts

@@ -0,0 +1,99 @@
+import type { Context } from 'hono';
+
+import { sendOrganisationAccountLinkConfirmationEmail } from '@documenso/ee/server-only/lib/send-organisation-account-link-confirmation-email';
+import { AppError } from '@documenso/lib/errors/app-error';
+import { onCreateUserHook } from '@documenso/lib/server-only/user/create-user';
+import { formatOrganisationLoginUrl } from '@documenso/lib/utils/organisation-authentication-portal';
+import { prisma } from '@documenso/prisma';
+
+import { AuthenticationErrorCode } from '../errors/error-codes';
+import { onAuthorize } from './authorizer';
+import { validateOauth } from './handle-oauth-callback-url';
+import { getOrganisationAuthenticationPortalOptions } from './organisation-portal';
+
+type HandleOAuthOrganisationCallbackUrlOptions = {
+  c: Context;
+  orgUrl: string;
+};
+
+export const handleOAuthOrganisationCallbackUrl = async (
+  options: HandleOAuthOrganisationCallbackUrlOptions,
+) => {
+  const { c, orgUrl } = options;
+
+  const { organisation, clientOptions } = await getOrganisationAuthenticationPortalOptions({
+    type: 'url',
+    organisationUrl: orgUrl,
+  });
+
+  const { email, name, sub, accessToken, accessTokenExpiresAt, idToken } = await validateOauth({
+    c,
+    clientOptions: {
+      ...clientOptions,
+      bypassEmailVerification: true, // Bypass for organisation OIDC because we manually verify the email.
+    },
+  });
+
+  const allowedDomains = organisation.organisationAuthenticationPortal.allowedDomains;
+
+  if (allowedDomains.length > 0 && !allowedDomains.some((domain) => email.endsWith(`@${domain}`))) {
+    throw new AppError(AuthenticationErrorCode.InvalidRequest, {
+      message: 'Email domain not allowed',
+    });
+  }
+
+  // Find the account if possible.
+  const existingAccount = await prisma.account.findFirst({
+    where: {
+      provider: clientOptions.id,
+      providerAccountId: sub,
+    },
+    include: {
+      user: true,
+    },
+  });
+
+  // Directly log in user if account already exists.
+  if (existingAccount) {
+    await onAuthorize({ userId: existingAccount.user.id }, c);
+
+    return c.redirect(`/o/${orgUrl}`, 302);
+  }
+
+  let userToLink = await prisma.user.findFirst({
+    where: {
+      email,
+    },
+  });
+
+  // Handle new user.
+  if (!userToLink) {
+    userToLink = await prisma.user.create({
+      data: {
+        email: email,
+        name: name,
+        emailVerified: null, // Do not verify email.
+      },
+    });
+
+    await onCreateUserHook(userToLink).catch((err) => {
+      // Todo: (RR7) Add logging.
+      console.error(err);
+    });
+  }
+
+  await sendOrganisationAccountLinkConfirmationEmail({
+    type: userToLink.emailVerified ? 'link' : 'create',
+    userId: userToLink.id,
+    organisationId: organisation.id,
+    organisationName: organisation.name,
+    oauthConfig: {
+      accessToken,
+      idToken,
+      providerAccountId: sub,
+      expiresAt: Math.floor(accessTokenExpiresAt.getTime() / 1000),
+    },
+  });
+
+  return c.redirect(`${formatOrganisationLoginUrl(orgUrl)}?action=verification-required`, 302);
+};

packages/auth/server/lib/utils/organisation-portal.ts

@@ -0,0 +1,94 @@
+import { IS_BILLING_ENABLED } from '@documenso/lib/constants/app';
+import { DOCUMENSO_ENCRYPTION_KEY } from '@documenso/lib/constants/crypto';
+import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
+import { symmetricDecrypt } from '@documenso/lib/universal/crypto';
+import { formatOrganisationCallbackUrl } from '@documenso/lib/utils/organisation-authentication-portal';
+import { prisma } from '@documenso/prisma';
+
+type GetOrganisationAuthenticationPortalOptions =
+  | {
+      type: 'url';
+      organisationUrl: string;
+    }
+  | {
+      type: 'id';
+      organisationId: string;
+    };
+
+export const getOrganisationAuthenticationPortalOptions = async (
+  options: GetOrganisationAuthenticationPortalOptions,
+) => {
+  const organisation = await prisma.organisation.findFirst({
+    where:
+      options.type === 'url'
+        ? {
+            url: options.organisationUrl,
+          }
+        : {
+            id: options.organisationId,
+          },
+    include: {
+      organisationClaim: true,
+      organisationAuthenticationPortal: true,
+      groups: true,
+    },
+  });
+
+  if (!organisation) {
+    throw new AppError(AppErrorCode.NOT_FOUND, {
+      message: 'Organisation not found',
+    });
+  }
+
+  if (!IS_BILLING_ENABLED()) {
+    throw new AppError(AppErrorCode.NOT_SETUP, {
+      message: 'Billing is not enabled',
+    });
+  }
+
+  if (
+    !organisation.organisationClaim.flags.authenticationPortal ||
+    !organisation.organisationAuthenticationPortal.enabled
+  ) {
+    throw new AppError(AppErrorCode.NOT_SETUP, {
+      message: 'Authentication portal is not enabled for this organisation',
+    });
+  }
+
+  const {
+    clientId,
+    clientSecret: encryptedClientSecret,
+    wellKnownUrl,
+  } = organisation.organisationAuthenticationPortal;
+
+  if (!clientId || !encryptedClientSecret || !wellKnownUrl) {
+    throw new AppError(AppErrorCode.NOT_SETUP, {
+      message: 'Authentication portal is not configured for this organisation',
+    });
+  }
+
+  if (!DOCUMENSO_ENCRYPTION_KEY) {
+    throw new AppError(AppErrorCode.NOT_SETUP, {
+      message: 'Encryption key is not set',
+    });
+  }
+
+  const clientSecret = Buffer.from(
+    symmetricDecrypt({ key: DOCUMENSO_ENCRYPTION_KEY, data: encryptedClientSecret }),
+  ).toString('utf-8');
+
+  return {
+    organisation,
+    clientId,
+    clientSecret,
+    wellKnownUrl,
+    clientOptions: {
+      id: organisation.id,
+      scope: ['openid', 'email', 'profile'],
+      clientId,
+      clientSecret,
+      redirectUrl: formatOrganisationCallbackUrl(organisation.url),
+      wellKnownUrl,
+    },
+  };
+};