feat(core): issue subject tokens

packages/core/src/constants/index.ts

@@ -1 +1,5 @@
 export const protectedAppSignInCallbackUrl = 'sign-in-callback';
+/** The default lifetime of subject tokens (in seconds) */
+export const subjectTokenExpiresIn = 600;
+/** The prefix for subject tokens */
+export const subjectTokenPrefix = 'sub_';

packages/core/src/queries/subject-token.ts

@@ -0,0 +1,14 @@
+import { SubjectTokens } from '@logto/schemas';
+import type { CommonQueryMethods } from '@silverhand/slonik';
+
+import { buildInsertIntoWithPool } from '#src/database/insert-into.js';
+
+export const createSubjectTokenQueries = (pool: CommonQueryMethods) => {
+  const insertSubjectToken = buildInsertIntoWithPool(pool)(SubjectTokens, {
+    returning: true,
+  });
+
+  return {
+    insertSubjectToken,
+  };
+};

packages/core/src/routes/init.ts

@@ -32,6 +32,7 @@ import resourceRoutes from './resource.js';
 import resourceScopeRoutes from './resource.scope.js';
 import roleRoutes from './role.js';
 import roleScopeRoutes from './role.scope.js';
+import securityRoutes from './security/index.js';
 import signInExperiencesRoutes from './sign-in-experience/index.js';
 import ssoConnectors from './sso-connector/index.js';
 import statusRoutes from './status.js';
@@ -79,6 +80,7 @@ const createRouters = (tenant: TenantContext) => {
   organizationRoutes(managementRouter, tenant);
   ssoConnectors(managementRouter, tenant);
   systemRoutes(managementRouter, tenant);
+  securityRoutes(managementRouter, tenant);
 
   const anonymousRouter: AnonymousRouter = new Router();
   wellKnownRoutes(anonymousRouter, tenant);

packages/core/src/routes/security/index.openapi.json

@@ -0,0 +1,41 @@
+{
+  "tags": [
+    {
+      "name": "Security",
+      "description": "Security related endpoints."
+    }
+  ],
+  "paths": {
+    "/api/security/subject-tokens": {
+      "post": {
+        "tags": ["Dev feature"],
+        "summary": "Create a new subject token.",
+        "description": "Create a new subject token for the use of impersonating the user.",
+        "requestBody": {
+          "content": {
+            "application/json": {
+              "schema": {
+                "properties": {
+                  "userId": {
+                    "description": "The ID of the user to impersonate."
+                  },
+                  "context": {
+                    "description": "The additional context to be included in the token, this can be used in custom JWT."
+                  }
+                }
+              }
+            }
+          }
+        },
+        "responses": {
+          "201": {
+            "description": "The subject token has been created successfully."
+          },
+          "404": {
+            "description": "The user does not exist."
+          }
+        }
+      }
+    }
+  }
+}

packages/core/src/routes/security/index.ts

@@ -0,0 +1,56 @@
+import { jsonObjectGuard, subjectTokenResponseGuard } from '@logto/schemas';
+import { generateStandardId } from '@logto/shared';
+import { addSeconds } from 'date-fns';
+import { object, string } from 'zod';
+
+import { subjectTokenExpiresIn, subjectTokenPrefix } from '#src/constants/index.js';
+import { EnvSet } from '#src/env-set/index.js';
+import koaGuard from '#src/middleware/koa-guard.js';
+
+import { type RouterInitArgs, type ManagementApiRouter } from '../types.js';
+
+export default function securityRoutes<T extends ManagementApiRouter>(...args: RouterInitArgs<T>) {
+  const [router, { queries }] = args;
+  const {
+    subjectTokens: { insertSubjectToken },
+  } = queries;
+
+  if (!EnvSet.values.isDevFeaturesEnabled) {
+    return;
+  }
+
+  router.post(
+    '/security/subject-tokens',
+    koaGuard({
+      body: object({
+        userId: string(),
+        context: jsonObjectGuard.optional(),
+      }),
+      response: subjectTokenResponseGuard,
+      status: [201, 404],
+    }),
+    async (ctx, next) => {
+      const {
+        auth: { id },
+        guard: {
+          body: { userId, context = {} },
+        },
+      } = ctx;
+
+      const subjectToken = await insertSubjectToken({
+        id: `${subjectTokenPrefix}${generateStandardId()}`,
+        userId,
+        context,
+        expiresAt: addSeconds(new Date(), subjectTokenExpiresIn).valueOf(),
+        creatorId: id,
+      });
+
+      ctx.status = 201;
+      ctx.body = {
+        subjectToken: subjectToken.id,
+        expiresIn: subjectTokenExpiresIn,
+      };
+      return next();
+    }
+  );
+}

packages/core/src/tenants/Queries.ts

@@ -21,6 +21,7 @@ import { createRolesQueries } from '#src/queries/roles.js';
 import { createScopeQueries } from '#src/queries/scope.js';
 import { createSignInExperienceQueries } from '#src/queries/sign-in-experience.js';
 import SsoConnectorQueries from '#src/queries/sso-connectors.js';
+import { createSubjectTokenQueries } from '#src/queries/subject-token.js';
 import createTenantQueries from '#src/queries/tenant.js';
 import UserSsoIdentityQueries from '#src/queries/user-sso-identities.js';
 import { createUserQueries } from '#src/queries/user.js';
@@ -52,6 +53,7 @@ export default class Queries {
   organizations = new OrganizationQueries(this.pool);
   ssoConnectors = new SsoConnectorQueries(this.pool);
   userSsoIdentities = new UserSsoIdentityQueries(this.pool);
+  subjectTokens = createSubjectTokenQueries(this.pool);
   tenants = createTenantQueries(this.pool);
 
   constructor(

packages/integration-tests/src/api/subject-token.ts

@@ -0,0 +1,13 @@
+import type { JsonObject, SubjectTokenResponse } from '@logto/schemas';
+
+import { authedAdminApi } from './api.js';
+
+export const createSubjectToken = async (userId: string, context?: JsonObject) =>
+  authedAdminApi
+    .post('security/subject-tokens', {
+      json: {
+        userId,
+        context,
+      },
+    })
+    .json<SubjectTokenResponse>();

packages/integration-tests/src/tests/api/security.test.ts

@@ -0,0 +1,19 @@
+import { createSubjectToken } from '#src/api/subject-token.js';
+import { createUserByAdmin } from '#src/helpers/index.js';
+import { devFeatureTest } from '#src/utils.js';
+
+const { describe, it } = devFeatureTest;
+
+describe('subject-tokens', () => {
+  it('should create a subject token successfully', async () => {
+    const user = await createUserByAdmin();
+    const response = await createSubjectToken(user.id, { test: 'test' });
+
+    expect(response.subjectToken).toContain('sub_');
+    expect(response.expiresIn).toBeGreaterThan(0);
+  });
+
+  it('should fail to create a subject token with a non-existent user', async () => {
+    await expect(createSubjectToken('non-existent-user')).rejects.toThrow();
+  });
+});

packages/schemas/alterations/next-1718865814-add-subject-tokens.ts

@@ -0,0 +1,36 @@
+import { sql } from '@silverhand/slonik';
+
+import type { AlterationScript } from '../lib/types/alteration.js';
+
+import { applyTableRls, dropTableRls } from './utils/1704934999-tables.js';
+
+const alteration: AlterationScript = {
+  up: async (pool) => {
+    await pool.query(sql`
+      create table subject_tokens (
+        tenant_id varchar(21) not null
+          references tenants (id) on update cascade on delete cascade,
+        id varchar(25) not null,
+        context jsonb /* @use JsonObject */ not null default '{}'::jsonb,
+        expires_at timestamptz not null,
+        consumed_at timestamptz,
+        user_id varchar(21) not null
+          references users (id) on update cascade on delete cascade,
+        created_at timestamptz not null default(now()),
+        creator_id varchar(32) not null, /* It is intented to not reference to user or application table */
+        primary key (id)
+      );
+
+      create index subject_token__id on subject_tokens (tenant_id, id);
+    `);
+    await applyTableRls(pool, 'subject_tokens');
+  },
+  down: async (pool) => {
+    await dropTableRls(pool, 'subject_tokens');
+    await pool.query(sql`
+      drop table subject_tokens
+    `);
+  },
+};
+
+export default alteration;

packages/schemas/src/types/index.ts

@@ -28,3 +28,4 @@ export * from './mapi-proxy.js';
 export * from './consent.js';
 export * from './onboarding.js';
 export * from './sign-in-experience.js';
+export * from './subject-token.js';

packages/schemas/src/types/subject-token.ts

@@ -0,0 +1,8 @@
+import { number, object, string, type z } from 'zod';
+
+export const subjectTokenResponseGuard = object({
+  subjectToken: string(),
+  expiresIn: number(),
+});
+
+export type SubjectTokenResponse = z.infer<typeof subjectTokenResponseGuard>;

packages/schemas/tables/subject_tokens.sql

@@ -0,0 +1,16 @@
+create table subject_tokens (
+  tenant_id varchar(21) not null
+    references tenants (id) on update cascade on delete cascade,
+  id varchar(25) not null,
+  context jsonb /* @use JsonObject */ not null default '{}'::jsonb,
+  expires_at timestamptz not null,
+  consumed_at timestamptz,
+  user_id varchar(21) not null
+    references users (id) on update cascade on delete cascade,
+  created_at timestamptz not null default(now()),
+  /* It is intented to not reference to user or application table, it can be userId or applicationId, for audit only */
+  creator_id varchar(32) not null,
+  primary key (id)
+);
+
+create index subject_token__id on subject_tokens (tenant_id, id);