realm: Add session room property to realm JWTs

packages/matrix/tests/login.spec.ts

@@ -112,10 +112,12 @@ test.describe('Login', () => {
     let claims = jwt.verify(token, REALM_SECRET_SEED) as {
       user: string;
       realm: string;
+      sessionRoom: string;
       permissions: ('read' | 'write' | 'realm-owner')[];
     };
     expect(claims.user).toStrictEqual('@user1:localhost');
     expect(claims.realm).toStrictEqual(`${appURL}/`);
+    expect(claims.sessionRoom).toMatch(/!\w*:localhost/);
     expect(claims.permissions).toMatchObject(['read', 'write']);
 
     // reload to page to show that the access token persists

packages/realm-server/tests/realm-server-test.ts

@@ -97,7 +97,15 @@ let createJWT = (
   user: string,
   permissions: RealmPermissions['user'] = [],
 ) => {
-  return realm.createJWT({ user, realm: realm.url, permissions }, '7d');
+  return realm.createJWT(
+    {
+      user,
+      realm: realm.url,
+      permissions,
+      sessionRoom: `test-session-room-for-${user}`,
+    },
+    '7d',
+  );
 };
 
 module(basename(__filename), function () {

packages/runtime-common/realm.ts

@@ -109,6 +109,7 @@ export interface FileRef {
 export interface TokenClaims {
   user: string;
   realm: string;
+  sessionRoom: string;
   permissions: RealmPermissions['user'];
 }
 
@@ -654,7 +655,7 @@ export class Realm {
             requestContext,
           });
         },
-        createJWT: async (user: string) => {
+        createJWT: async (user: string, sessionRoom: string) => {
           let permissions = requestContext.permissions;
 
           let userPermissions = await new RealmPermissionChecker(
@@ -666,6 +667,7 @@ export class Realm {
             {
               user,
               realm: this.url,
+              sessionRoom,
               permissions: userPermissions,
             },
             '7d',