feat: 프로젝트 리더가 아닌 회원이 설정페이지를 접속시 웹소켓 연결을 끊도록 구현

- 프로젝트 리더인지 확인하는 서비스 구현
- 프로젝트 리더가 아닌 회원이 설정 페이지 접속시 웹소켓 연결 끊도록 구현
- 리더가 아닌 회원이 설정페이지 입장 하는 E2E 테스트 추가

backend/src/project/service/project.service.ts

@@ -59,6 +59,14 @@ export class ProjectService {
     return true;
   }
 
+  async isProjectLeader(project: Project, member: Member): Promise<boolean> {
+    const projectToMember = await this.projectRepository.getProjectToMember(
+      project,
+      member,
+    );
+    return projectToMember?.role === MemberRole.LEADER;
+  }
+
   getProjectByLinkId(projectLinkId: string): Promise<Project | null> {
     return this.projectRepository.getProjectByLinkId(projectLinkId);
   }

backend/src/project/ws-controller/ws-project.controller.ts

@@ -65,6 +65,16 @@ export class WsProjectController {
   }
 
   async joinSettingPage(client: ClientSocket) {
+    if (
+      !(await this.projectService.isProjectLeader(
+        client.project,
+        client.member,
+      ))
+    ) {
+      client.disconnect(true);
+      return;
+    }
+
     client.leave('landing');
     client.leave('backlog');
     client.join('setting');

backend/test/project/ws-setting-page/ws-project-landing-page.e2e-spec.ts

@@ -72,4 +72,26 @@ describe('WS Setting', () => {
       socket1.close();
     });
   });
+
+  it('Should close connection when member(not leader) enters setting page', async () => {
+    let socket2: Socket;
+
+    return new Promise<void>(async (resolve) => {
+      const accessToken1 = (await createMember(memberFixture, app)).accessToken;
+      const project = await createProject(accessToken1, projectPayload, app);
+      const projectLinkId = await getProjectLinkId(accessToken1, project.id);
+
+      const accessToken2 = (await createMember(memberFixture2, app))
+        .accessToken;
+      await joinProject(accessToken2, projectLinkId);
+
+      socket2 = connectServer(project.id, accessToken2);
+      socket2.emit('joinSetting');
+      socket2.on('disconnect', () => {
+        resolve();
+      });
+    }).finally(() => {
+      socket2.close();
+    });
+  });
 });