fix: admin token requests does not automatically have id (#6501)

To check that users do indeed have permissions to update the roles from
project-service, we've been depending on req.user.id.
We had one error on Friday March 8th, where we managed to send
undefined/null to a method that requires a number. This PR assumes that
if we have an API token, and we have admin permissions and userId is not
set we're a legacy admin token.

It uses the util method for extractUserId(req: IAuthRequest | IApiRequest), so if we've passed through the apiTokenMiddleware first, we'll have userId -42, if we haven't, we'll get -1337.

src/lib/features/project/project-service.ts

@@ -8,6 +8,7 @@ import { nameType } from '../../routes/util';
 import { projectSchema } from '../../services/project-schema';
 import NotFoundError from '../../error/notfound-error';
 import {
+    ADMIN_TOKEN_USER,
     CreateProject,
     DEFAULT_PROJECT,
     FeatureToggle,
@@ -44,6 +45,7 @@ import {
     ProjectUserUpdateRoleEvent,
     RoleName,
     SYSTEM_USER,
+    SYSTEM_USER_ID,
 } from '../../types';
 import {
     IProjectAccessModel,
@@ -701,8 +703,12 @@ export default class ProjectService {
         );
     }
 
-    private isAdmin(roles: IRoleWithProject[]): boolean {
-        return roles.some((r) => r.name === RoleName.ADMIN);
+    private isAdmin(userId: number, roles: IRoleWithProject[]): boolean {
+        return (
+            userId === SYSTEM_USER_ID ||
+            userId === ADMIN_TOKEN_USER.id ||
+            roles.some((r) => r.name === RoleName.ADMIN)
+        );
     }
 
     private isProjectOwner(
@@ -723,7 +729,7 @@ export default class ProjectService {
             projectId,
         );
         if (
-            this.isAdmin(userRoles) ||
+            this.isAdmin(userAddingAccess, userRoles) ||
             this.isProjectOwner(userRoles, projectId)
         ) {
             return true;

src/lib/middleware/rbac-middleware.test.ts

@@ -7,7 +7,7 @@ import ApiUser from '../types/api-user';
 import { IFeatureToggleStore } from '../features/feature-toggle/types/feature-toggle-store-type';
 import FakeFeatureToggleStore from '../features/feature-toggle/fakes/fake-feature-toggle-store';
 import { ApiTokenType } from '../types/models/api-token';
-import { ISegmentStore } from '../types';
+import { ISegmentStore, SYSTEM_USER_ID } from '../types';
 import FakeSegmentStore from '../../test/fixtures/fake-segment-store';
 
 let config: IUnleashConfig;
@@ -73,6 +73,65 @@ test('should give api-user ADMIN permission', async () => {
     expect(hasAccess).toBe(true);
 });
 
+describe('ADMIN tokens should have user id -1337 when only passed through rbac-middleware', () => {
+    /// Will be -42 (ADMIN_USER.id) when we have the api-token-middleware run first
+    test('Should give ADMIN api-user userid -1337 (SYSTEM_USER_ID)', async () => {
+        const accessService = {
+            hasPermission: jest.fn(),
+        };
+
+        const func = rbacMiddleware(
+            config,
+            { featureToggleStore, segmentStore },
+            accessService,
+        );
+
+        const cb = jest.fn();
+        const req: any = {
+            user: new ApiUser({
+                tokenName: 'api',
+                permissions: [perms.ADMIN],
+                project: '*',
+                environment: '*',
+                type: ApiTokenType.ADMIN,
+                secret: 'a',
+            }),
+        };
+        func(req, undefined, cb);
+        const hasAccess = await req.checkRbac(perms.ADMIN);
+        expect(req.user.id).toBe(SYSTEM_USER_ID);
+        expect(hasAccess).toBe(true);
+    });
+    /// Will be -42 (ADMIN_USER.id) when we have the api-token-middleware run first
+    test('Also when checking against permission NONE, userid should still be -1337', async () => {
+        const accessService = {
+            hasPermission: jest.fn(),
+        };
+
+        const func = rbacMiddleware(
+            config,
+            { featureToggleStore, segmentStore },
+            accessService,
+        );
+
+        const cb = jest.fn();
+        const req: any = {
+            user: new ApiUser({
+                tokenName: 'api',
+                permissions: [perms.ADMIN],
+                project: '*',
+                environment: '*',
+                type: ApiTokenType.ADMIN,
+                secret: 'a',
+            }),
+        };
+        func(req, undefined, cb);
+        const hasAccess = await req.checkRbac(perms.NONE);
+        expect(req.user.id).toBe(SYSTEM_USER_ID);
+        expect(hasAccess).toBe(true);
+    });
+});
+
 test('should not give api-user ADMIN permission', async () => {
     const accessService = {
         hasPermission: jest.fn(),

src/lib/middleware/rbac-middleware.ts

@@ -1,7 +1,7 @@
 import {
+    ADMIN,
     CREATE_FEATURE,
     DELETE_FEATURE,
-    ADMIN,
     UPDATE_FEATURE,
     UPDATE_PROJECT_SEGMENT,
 } from '../types/permissions';
@@ -9,6 +9,7 @@ import { IUnleashConfig } from '../types/option';
 import { IUnleashStores } from '../types/stores';
 import User from '../types/user';
 import { Request } from 'express';
+import { extractUserId } from '../util';
 
 interface PermissionChecker {
     hasPermission(
@@ -56,7 +57,14 @@ const rbacMiddleware = (
             }
 
             if (user.isAPI) {
-                return user.permissions.includes(ADMIN);
+                if (user.permissions.includes(ADMIN)) {
+                    if (!req.user.id) {
+                        req.user.id = extractUserId(req);
+                    }
+                    return true;
+                } else {
+                    return false;
+                }
             }
 
             if (!user.id) {

src/lib/services/access-service.ts

@@ -31,8 +31,8 @@ import { roleSchema } from '../schema/role-schema';
 import {
     ALL_ENVS,
     ALL_PROJECTS,
-    CUSTOM_ROOT_ROLE_TYPE,
     CUSTOM_PROJECT_ROLE_TYPE,
+    CUSTOM_ROOT_ROLE_TYPE,
     ROOT_ROLE_TYPES,
 } from '../util/constants';
 import { DEFAULT_PROJECT } from '../types/project';
@@ -219,7 +219,7 @@ export class AccessService {
     /**
      * Returns all roles the user has in the project.
      * Including roles via groups.
-     * In addition it includes root roles
+     * In addition, it includes root roles
      * @param userId user to find roles for
      * @param project project to find roles for
      */