nest-oidc-provider

nest-oidc-provider

Description

oidc-provider module for Nest framework (node.js)

Installation

$ npm i --save nest-oidc-provider oidc-provider

OR

$ yarn add nest-oidc-provider oidc-provider

OR

$ pnpm add nest-oidc-provider oidc-provider

Setup

⚠️ Version 8 of oidc-provider is now ESM-only, which is not yet supported by NestJS natively (nest#7021, nest#8736). This library enables the use of the ESM-only version of oidc-provider for Node.js <= 20.17.x via dynamic imports. To avoid errors like [ERR_REQUIRE_ESM], all interfaces should be imported from this package, and the module should be accessed through dependency injection. Use @InjectOidcModule() to inject the oidc-provider module and @InjectOidcProvider() for the running instance. You must not import anything directly from oidc-provider, unless you're using Node.js >= 20.17.x with the experimental --experimental-require-module flag (#54447)!

TypeScript

You need to install the oidc-provider @types package if you want to use the re-exported types from this library.

npm install @types/oidc-provider --save-dev

Basic configuration

@Module({
  imports: [
    OidcModule.forRoot({
      issuer: 'http://localhost:3000',
      path: '/oidc',
      oidc: ... // oidc-provider configuration
    })
  ],
})
export class AppModule {}

Custom factory function

You can pass a factory function to customize the provider instantiation.

@Module({
  imports: [
    OidcModule.forRoot({
      issuer: 'http://localhost:3000',
      path: '/oidc',
      factory: ({ issuer, config, module }) => {
        // `module` is the import from `oidc-provider`
        const provider = new module.Provider(issuer, config);
        provider.on('server_error', (ctx, err) => {...})
        return provider;
      },
      oidc: ... // oidc-provider configuration
    })
  ],
})
export class AppModule {}

Trusting TLS offloading proxies

You can set the proxy option to true to trust TLS offloading proxies.
For more info visit the oidc-provider documentation: Trusting TLS offloading proxies

@Module({
  imports: [
    OidcModule.forRoot({
      issuer: 'http://localhost:3000',
      path: '/oidc',
      proxy: true, // <- trust TLS offloading proxies
      oidc: {...}
    })
  ],
})
export class AppModule {}

Dynamic host routing

You can set the host option to require the HTTP host of incoming requests to match some specific value before they are processed by the oidc-provider callback.

For more info visit the NestJS documentation: Sub-domain routing.

@Module({
  imports: [
    OidcModule.forRoot({
      issuer: 'https://oidc.example.com',
      path: '/oidc',
      host: 'oidc.example.com', // <- Use a specific host/subdomain
      oidc: {...}
    })
  ],
})
export class AppModule {}

Async configuration

useFactory

@Module({
  imports: [
    OidcModule.forRootAsync({
      imports: [ConfigModule],
      useFactory: async (configService: ConfigService) => ({
        issuer: configService.get<string>('ISSUER'),
        path: configService.get<string>('OIDC_PATH'),
        oidc: ... // oidc-provider configuration
      }),
      inject: [ConfigService],
    }),
  ],
})
export class AppModule {}

useClass

@Module({
  imports: [
    OidcModule.forRootAsync({
      useClass: OidcConfigService,
    }),
  ],
})
export class AppModule {}

Note that in this example, the OidcConfigService has to implement the OidcModuleOptionsFactory interface, as shown below.

import type { OidcModuleOptionsFactory } from 'nest-oidc-provider';

@Injectable()
export class OidcConfigService implements OidcModuleOptionsFactory {
  constructor(private readonly @InjectConnection() conn: Connection) {}

  createModuleOptions(): OidcModuleOptions {
    return {
      issuer: 'http://localhost:3001',
      path: '/oidc',
      oidc: ..., // oidc-provider configuration
    };
  }

  createAdapterFactory?(): AdapterFactory {
    return (modelName: string) => new MyAdapter(modelName, this.conn);
  }
}

You can omit the Adapter option of oidc-provider configuration if you implement the createAdapterFactory method.

useExisting

@Module({
  imports: [
    OidcModule.forRootAsync({
      imports: [OidcConfigModule],
      useExisting: OidcConfigService,
    }),
  ],
})
export class AppModule {}

Custom injection decorators

To be able to access the exports of the oidc-provider module or the running instance, you need to use decorators or injection tokens:

import {
  InjectOidcModule,
  InjectOidcProvider,
  type Provider,
  type ProviderModule,
} from 'nest-oidc-provider';

@Controller('/some-controller')
export class SomeController {
  constructor(
    /** Returns exports from the `oidc-provider` module */
    @InjectOidcModule() oidc: ProviderModule,
    /** Returns the running `oidc-provider` instance */
    @InjectOidcProvider() provider: Provider,
  ) {}
}

OR

import {
  OIDC_PROVIDER,
  OIDC_PROVIDER_MODULE,
  type Provider,
  type ProviderModule,
} from 'nest-oidc-provider';

async function bootstrap() {
  const app = await NestFactory.create<NestExpressApplication>(AppModule);

  const { Provider, errors, interactionPolicy } =
    app.get<ProviderModule>(OIDC_PROVIDER_MODULE);
  const provider = app.get<Provider>(OIDC_PROVIDER);

  await app.listen(3000);
}

Custom param decorators

@OidcInteraction()

Returns an instance of InteractionHelper class.

import { OidcInteraction, type InteractionHelper } from 'nest-oidc-provider';

@Get(':uid')
@Render('login')
async login(
  @OidcInteraction() interaction: InteractionHelper
) {
  const { prompt, params, uid } = await interaction.details();

  const client = await this.provider.Client.find(params.client_id as string);

  return { prompt, client, params, uid, ...};
}

The InteractionHelper class is just a helper that omits the req and res parameters from the existing interaction methods in oidc-provider.

interface InteractionHelper {
  details(): Promise<InteractionDetails>;

  finished(
    result: InteractionResults,
    options?: { mergeWithLastSubmission?: boolean },
  ): Promise<void>;

  result(
    result: InteractionResults,
    options?: { mergeWithLastSubmission?: boolean },
  ): Promise<string>;
}

@OidcContext()

Returns an instance of KoaContextWithOIDC.

import { OidcContext, type KoaContextWithOIDC } from 'nest-oidc-provider';

@Get()
async index(@OidcContext() ctx: KoaContextWithOIDC) {
  const { oidc: { provider } } = ctx;
  const session = await provider.Session.get(ctx);
  //...
}

@OidcSession()

Returns the user Session from the current context, equivalent to retrieving the session from KoaContextWithOIDC.

import { OidcSession, type Session } from 'nest-oidc-provider';

@Get()
async index(@OidcSession() session: Session) {
  //...
}

Examples

A complete example can be found in the example directory.

Contributing

You are welcome to contribute to this project, just open a PR.

CHANGELOG

See CHANGELOG for more information.

License

This project is MIT licensed.