All files strategy.ts

100% Statements 42/42
94.74% Branches 18/19
100% Functions 2/2
100% Lines 42/42

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// @ts-ignore
import getProfile from 'grant-profile/lib/client';
import querystring from 'querystring';
import Debug from 'debug';
import {
  AuthenticationRequest, AuthenticationBaseStrategy, AuthenticationResult
} from '@feathersjs/authentication';
import { Params } from '@feathersjs/feathers';
 
const debug = Debug('@feathersjs/authentication-oauth/strategy');
 
export interface OAuthProfile {
  id?: string|number;
  [key: string]: any;
}
 
export class OAuthStrategy extends AuthenticationBaseStrategy {
  get configuration () {
    const { entity, service, entityId } = this.authentication.configuration;
 
    return {
      entity,
      service,
      entityId,
      ...super.configuration
    };
  }
 
  get entityId (): string {
    return this.configuration.entityId || this.entityService.id;
  }
 
  async getEntityQuery (profile: OAuthProfile, _params: Params) {
    return {
      [`${this.name}Id`]: profile.sub || profile.id
    };
  }
 
  async getEntityData (profile: OAuthProfile, _existingEntity: any, _params: Params) {
    return {
      [`${this.name}Id`]: profile.sub || profile.id
    };
  }
 
  /* istanbul ignore next */
  async getProfile (data: AuthenticationRequest, _params: Params) {
    const config = this.app.get('grant');
    const provider = config[data.strategy];
 
    debug('getProfile of oAuth profile from grant-profile with', data);
 
    return getProfile(provider, data);
  }
 
  async getCurrentEntity (params: Params) {
    const { authentication } = params;
    const { entity } = this.configuration;
 
    if (authentication && authentication.strategy) {
      debug('getCurrentEntity with authentication', authentication);
 
      const { strategy } = authentication;
      const authResult = await this.authentication
        .authenticate(authentication, params, strategy);
 
      return authResult[entity];
    }
 
    return null;
  }
 
  async getRedirect (data: AuthenticationResult|Error) {
    const { redirect } = this.authentication.configuration.oauth;
 
    if (!redirect) {
      return null;
    }
 
    const separator = redirect.endsWith('?') ? '' : '#';
    const authResult: AuthenticationResult = data;
    const query = authResult.accessToken ? {
      access_token: authResult.accessToken
    } : {
      error: data.message || 'OAuth Authentication not successful'
    };
 
    return redirect + separator + querystring.stringify(query);
  }
 
  async findEntity (profile: OAuthProfile, params: Params) {
    const query = await this.getEntityQuery(profile, params);
 
    debug('findEntity with query', query);
 
    const result = await this.entityService.find({
      ...params,
      query
    });
    const [ entity = null ] = result.data ? result.data : result;
 
    debug('findEntity returning', entity);
 
    return entity;
  }
 
  async createEntity (profile: OAuthProfile, params: Params) {
    const data = await this.getEntityData(profile, null, params);
 
    debug('createEntity with data', data);
 
    return this.entityService.create(data, params);
  }
 
  async updateEntity (entity: any, profile: OAuthProfile, params: Params) {
    const id = entity[this.entityId];
    const data = await this.getEntityData(profile, entity, params);
 
    debug(`updateEntity with id ${id} and data`, data);
 
    return this.entityService.patch(id, data, params);
  }
 
  async authenticate (authentication: AuthenticationRequest, params: Params) {
    const entity: string = this.configuration.entity;
    const profile = await this.getProfile(authentication, params);
    const existingEntity = await this.findEntity(profile, params)
      || await this.getCurrentEntity(params);
 
    debug(`authenticate with (existing) entity`, existingEntity);
 
    const authEntity = !existingEntity ? await this.createEntity(profile, params)
      : await this.updateEntity(existingEntity, profile, params);
 
    return {
      authentication: { strategy: this.name },
      [entity]: authEntity
    };
  }
}