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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
};
}
}
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