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/routes/callback.ts

@@ -1,7 +1,10 @@
 import { Hono } from 'hono';
 
+import { AppError } from '@documenso/lib/errors/app-error';
+
 import { GoogleAuthOptions, OidcAuthOptions } from '../config';
 import { handleOAuthCallbackUrl } from '../lib/utils/handle-oauth-callback-url';
+import { handleOAuthOrganisationCallbackUrl } from '../lib/utils/handle-oauth-organisation-callback-url';
 import type { HonoAuthContext } from '../types/context';
 
 /**
@@ -14,6 +17,31 @@ export const callbackRoute = new Hono<HonoAuthContext>()
    */
   .get('/oidc', async (c) => handleOAuthCallbackUrl({ c, clientOptions: OidcAuthOptions }))
 
+  /**
+   * Organisation OIDC callback verification.
+   */
+  .get('/oidc/org/:orgUrl', async (c) => {
+    const orgUrl = c.req.param('orgUrl');
+
+    try {
+      return await handleOAuthOrganisationCallbackUrl({
+        c,
+        orgUrl,
+      });
+    } catch (err) {
+      console.error(err);
+
+      if (err instanceof Error) {
+        throw new AppError(err.name, {
+          message: err.message,
+          statusCode: 500,
+        });
+      }
+
+      throw err;
+    }
+  })
+
   /**
    * Google callback verification.
    */