• Index
• Search by APIs
• Search by Words
• Project Search

• Java
• Python
• JavaScript
• TypeScript
• C++
• Scala
• Blog

• nest-casl-master
  • .github
    • dependabot.yml
    • workflows
      • build.yml
      • publish.yml
      • codeql-analysis.yml
  • .eslintignore
  • src
    • casl.module.ts
    • actions.enum.ts
    • decorators
      • casl-conditions.ts
      • casl-user.ts
      • index.ts
      • use-ability.ts
      • casl-subject.ts
      • casl-query-authorize.ts
    • casl.constants.ts
    • index.ts
    • access.service.spec.ts
    • casl.config.spec.ts
    • __specs__
      • rest.e2e.spec.ts
      • graphql.e2e.spec.ts
      • app
        • user
          • user.service.ts
          • dtos
            • user.dto.ts
          • user.module.ts
          • user.hook.ts
        • post
          • post.service.ts
          • post.permissions.ts
          • post.resolver.ts
          • dtos
            • update-post-input.dto.ts
            • create-post-input.dto.ts
            • post.dto.ts
          • post.module.ts
          • post.hook.ts
          • post.controller.ts
        • app.module.ts
        • app.roles.ts
      • tsconfig.json
    • access.service.ts
    • proxies
      • user.proxy.ts
      • request.proxy.spec.ts
      • context.proxy.spec.ts
      • subject.proxy.spec.ts
      • user.proxy.spec.ts
      • conditions.proxy.spec.ts
      • context.proxy.ts
      • subject.proxy.ts
      • request.proxy.ts
      • conditions.proxy.ts
    • access.guard.ts
    • interfaces
      • permissions.interface.ts
      • ability-metadata.interface.ts
      • casl-request-cache.interface.ts
      • authorizable-user.interface.ts
      • hooks.interface.ts
      • options.interface.ts
      • request.interface.ts
    • factories
      • ability.factory.spec.ts
      • ability.factory.ts
      • user-hook.factory.spec.ts
      • subject-hook.factory.ts
      • user-hook.factory.ts
    • casl.config.ts
    • access.guard.spec.ts
  • jest.config.js
  • .npmignore
  • .prettierrc
  • LICENSE
  • .npmrc
  • .releaserc.yaml
  • tsconfig.build.json
  • README.md
  • package.json
  • .eslintrc.js
  • tsconfig.json
  • .gitignore
  • .prettierignore
  • .vscode
    • launch.json

import { AnyClass, AnyObject } from '@casl/ability/dist/types/types';
import { ModuleRef } from '@nestjs/core';

import { AuthorizableRequest } from '../interfaces/request.interface';
import { SubjectBeforeFilterHook, SubjectBeforeFilterTuple } from '../interfaces/hooks.interface';

export class NullSubjectHook implements SubjectBeforeFilterHook {
  public async run(): Promise<undefined> {
    return undefined;
  }
}

// TODO request generic params
export class TupleSubjectHook<Service> implements SubjectBeforeFilterHook {
  constructor(
    private service: Service,
    private runFunc: (service: Service, request: AuthorizableRequest) => Promise<AnyObject | undefined>,
  ) {
  }

  public async run(request: AuthorizableRequest): Promise<AnyObject | undefined> {
    return this.runFunc(this.service, request);
  }
}

export async function subjectHookFactory(
  moduleRef: ModuleRef,
  hookOrTuple?: AnyClass<SubjectBeforeFilterHook> | SubjectBeforeFilterTuple,
): Promise<SubjectBeforeFilterHook> {
  if (!hookOrTuple) {
    return new NullSubjectHook();
  }
  if (Array.isArray(hookOrTuple)) {
    const [ServiceClass, runFunction] = hookOrTuple;
    const service = moduleRef.get(ServiceClass, { strict: false });
    return new TupleSubjectHook<typeof ServiceClass>(service, runFunction);
  }
  return moduleRef.create<SubjectBeforeFilterHook>(hookOrTuple);
}