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/** * @license * Copyright Akveo. All Rights Reserved. * Licensed under the MIT License. See License.txt in the project root for license information. */ import { Inject, Injectable } from '@angular/core'; import { HttpErrorResponse, HttpHeaders } from '@angular/common/http'; import { of as observableOf } from 'rxjs'; import { switchMap, map, catchError } from 'rxjs/operators'; import { NB_WINDOW } from '@nebular/theme'; import { NbAuthStrategy } from '../auth-strategy'; import { NbAuthIllegalTokenError } from '../../services/token/token'; import { NbAuthResult } from '../../services/auth-result'; import { NbOAuth2ResponseType, auth2StrategyOptions, NbOAuth2GrantType, NbOAuth2ClientAuthMethod, } from './oauth2-strategy.options'; import * as i0 from "@angular/core"; import * as i1 from "@angular/common/http"; import * as i2 from "@angular/router"; /** * OAuth2 authentication strategy. * * Strategy settings: * * ```ts * export enum NbOAuth2ResponseType { * CODE = 'code', * TOKEN = 'token', * } * * export enum NbOAuth2GrantType { * AUTHORIZATION_CODE = 'authorization_code', * PASSWORD = 'password', * REFRESH_TOKEN = 'refresh_token', * } * * export class NbOAuth2AuthStrategyOptions { * name: string; * baseEndpoint?: string = ''; * clientId: string = ''; * clientSecret: string = ''; * clientAuthMethod: string = NbOAuth2ClientAuthMethod.NONE; * redirect?: { success?: string; failure?: string } = { * success: '/', * failure: null, * }; * defaultErrors?: any[] = ['Something went wrong, please try again.']; * defaultMessages?: any[] = ['You have been successfully authenticated.']; * authorize?: { * endpoint?: string; * redirectUri?: string; * responseType?: string; * requireValidToken: true, * scope?: string; * state?: string; * params?: { [key: string]: string }; * } = { * endpoint: 'authorize', * responseType: NbOAuth2ResponseType.CODE, * }; * token?: { * endpoint?: string; * grantType?: string; * requireValidToken: true, * redirectUri?: string; * scope?: string; * class: NbAuthTokenClass, * } = { * endpoint: 'token', * grantType: NbOAuth2GrantType.AUTHORIZATION_CODE, * class: NbAuthOAuth2Token, * }; * refresh?: { * endpoint?: string; * grantType?: string; * scope?: string; * requireValidToken: true, * } = { * endpoint: 'token', * grantType: NbOAuth2GrantType.REFRESH_TOKEN, * }; * } * ``` * */ export class NbOAuth2AuthStrategy extends NbAuthStrategy { static setup(options) { return [NbOAuth2AuthStrategy, options]; } get responseType() { return this.getOption('authorize.responseType'); } get clientAuthMethod() { return this.getOption('clientAuthMethod'); } constructor(http, route, window) { super(); this.http = http; this.route = route; this.window = window; this.redirectResultHandlers = { [NbOAuth2ResponseType.CODE]: () => { return observableOf(this.route.snapshot.queryParams).pipe(switchMap((params) => { if (params.code) { return this.requestToken(params.code); } return observableOf(new NbAuthResult(false, params, this.getOption('redirect.failure'), this.getOption('defaultErrors'), [])); })); }, [NbOAuth2ResponseType.TOKEN]: () => { const module = 'authorize'; const requireValidToken = this.getOption(`${module}.requireValidToken`); return observableOf(this.route.snapshot.fragment).pipe(map((fragment) => this.parseHashAsQueryParams(fragment)), map((params) => { if (!params.error) { return new NbAuthResult(true, params, this.getOption('redirect.success'), [], this.getOption('defaultMessages'), this.createToken(params, requireValidToken)); } return new NbAuthResult(false, params, this.getOption('redirect.failure'), this.getOption('defaultErrors'), []); }), catchError((err) => { const errors = []; if (err instanceof NbAuthIllegalTokenError) { errors.push(err.message); } else { errors.push('Something went wrong.'); } return observableOf(new NbAuthResult(false, err, this.getOption('redirect.failure'), errors)); })); }, }; this.redirectResults = { [NbOAuth2ResponseType.CODE]: () => { return observableOf(this.route.snapshot.queryParams).pipe(map((params) => !!(params && (params.code || params.error)))); }, [NbOAuth2ResponseType.TOKEN]: () => { return observableOf(this.route.snapshot.fragment).pipe(map((fragment) => this.parseHashAsQueryParams(fragment)), map((params) => !!(params && (params.access_token || params.error)))); }, }; this.defaultOptions = auth2StrategyOptions; } authenticate(data) { if (this.getOption('token.grantType') === NbOAuth2GrantType.PASSWORD) { return this.passwordToken(data.email, data.password); } else { return this.isRedirectResult().pipe(switchMap((result) => { if (!result) { this.authorizeRedirect(); return observableOf(new NbAuthResult(true)); } return this.getAuthorizationResult(); })); } } getAuthorizationResult() { const redirectResultHandler = this.redirectResultHandlers[this.responseType]; if (redirectResultHandler) { return redirectResultHandler.call(this); } throw new Error(`'${this.responseType}' responseType is not supported, only 'token' and 'code' are supported now`); } refreshToken(token) { const module = 'refresh'; const url = this.getActionEndpoint(module); const requireValidToken = this.getOption(`${module}.requireValidToken`); return this.http.post(url, this.buildRefreshRequestData(token), { headers: this.getHeaders() }).pipe(map((res) => { return new NbAuthResult(true, res, this.getOption('redirect.success'), [], this.getOption('defaultMessages'), this.createRefreshedToken(res, token, requireValidToken)); }), catchError((res) => this.handleResponseError(res))); } passwordToken(username, password) { const module = 'token'; const url = this.getActionEndpoint(module); const requireValidToken = this.getOption(`${module}.requireValidToken`); return this.http.post(url, this.buildPasswordRequestData(username, password), { headers: this.getHeaders() }).pipe(map((res) => { return new NbAuthResult(true, res, this.getOption('redirect.success'), [], this.getOption('defaultMessages'), this.createToken(res, requireValidToken)); }), catchError((res) => this.handleResponseError(res))); } authorizeRedirect() { this.window.location.href = this.buildRedirectUrl(); } isRedirectResult() { return this.redirectResults[this.responseType].call(this); } requestToken(code) { const module = 'token'; const url = this.getActionEndpoint(module); const requireValidToken = this.getOption(`${module}.requireValidToken`); return this.http.post(url, this.buildCodeRequestData(code), { headers: this.getHeaders() }).pipe(map((res) => { return new NbAuthResult(true, res, this.getOption('redirect.success'), [], this.getOption('defaultMessages'), this.createToken(res, requireValidToken)); }), catchError((res) => this.handleResponseError(res))); } buildCodeRequestData(code) { const params = { grant_type: this.getOption('token.grantType'), code: code, redirect_uri: this.getOption('token.redirectUri'), client_id: this.getOption('clientId'), }; return this.urlEncodeParameters(this.cleanParams(this.addCredentialsToParams(params))); } buildRefreshRequestData(token) { const params = { grant_type: this.getOption('refresh.grantType'), refresh_token: token.getRefreshToken(), scope: this.getOption('refresh.scope'), client_id: this.getOption('clientId'), }; return this.urlEncodeParameters(this.cleanParams(this.addCredentialsToParams(params))); } buildPasswordRequestData(username, password) { const params = { grant_type: this.getOption('token.grantType'), username: username, password: password, scope: this.getOption('token.scope'), }; return this.urlEncodeParameters(this.cleanParams(this.addCredentialsToParams(params))); } buildAuthHeader() { if (this.clientAuthMethod === NbOAuth2ClientAuthMethod.BASIC) { if (this.getOption('clientId') && this.getOption('clientSecret')) { return new HttpHeaders({ Authorization: 'Basic ' + btoa(this.getOption('clientId') + ':' + this.getOption('clientSecret')), }); } else { throw Error('For basic client authentication method, please provide both clientId & clientSecret.'); } } return undefined; } getHeaders() { let headers = super.getHeaders(); headers = headers.append('Content-Type', 'application/x-www-form-urlencoded'); const authHeaders = this.buildAuthHeader(); if (authHeaders === undefined) { return headers; } for (const headerKey of authHeaders.keys()) { for (const headerValue of authHeaders.getAll(headerKey)) { headers = headers.append(headerKey, headerValue); } } return headers; } cleanParams(params) { Object.entries(params).forEach(([key, val]) => !val && delete params[key]); return params; } addCredentialsToParams(params) { if (this.clientAuthMethod === NbOAuth2ClientAuthMethod.REQUEST_BODY) { if (this.getOption('clientId') && this.getOption('clientSecret')) { return { ...params, client_id: this.getOption('clientId'), client_secret: this.getOption('clientSecret'), }; } else { throw Error('For request body client authentication method, please provide both clientId & clientSecret.'); } } return params; } handleResponseError(res) { let errors = []; if (res instanceof HttpErrorResponse) { if (res.error.error_description) { errors.push(res.error.error_description); } else { errors = this.getOption('defaultErrors'); } } else if (res instanceof NbAuthIllegalTokenError) { errors.push(res.message); } else { errors.push('Something went wrong.'); } return observableOf(new NbAuthResult(false, res, this.getOption('redirect.failure'), errors, [])); } buildRedirectUrl() { const params = { response_type: this.getOption('authorize.responseType'), client_id: this.getOption('clientId'), redirect_uri: this.getOption('authorize.redirectUri'), scope: this.getOption('authorize.scope'), state: this.getOption('authorize.state'), ...this.getOption('authorize.params'), }; const endpoint = this.getActionEndpoint('authorize'); const query = this.urlEncodeParameters(this.cleanParams(params)); return `${endpoint}?${query}`; } parseHashAsQueryParams(hash) { return hash ? hash.split('&').reduce((acc, part) => { const item = part.split('='); acc[item[0]] = decodeURIComponent(item[1]); return acc; }, {}) : {}; } urlEncodeParameters(params) { return Object.keys(params) .map((k) => { return `${encodeURIComponent(k)}=${encodeURIComponent(params[k])}`; }) .join('&'); } createRefreshedToken(res, existingToken, requireValidToken) { const refreshedToken = this.createToken(res, requireValidToken); if (!refreshedToken.getRefreshToken() && existingToken.getRefreshToken()) { refreshedToken.setRefreshToken(existingToken.getRefreshToken()); } return refreshedToken; } register(data) { throw new Error('`register` is not supported by `NbOAuth2AuthStrategy`, use `authenticate`.'); } requestPassword(data) { throw new Error('`requestPassword` is not supported by `NbOAuth2AuthStrategy`, use `authenticate`.'); } resetPassword(data = {}) { throw new Error('`resetPassword` is not supported by `NbOAuth2AuthStrategy`, use `authenticate`.'); } logout() { return observableOf(new NbAuthResult(true)); } } NbOAuth2AuthStrategy.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.4", ngImport: i0, type: NbOAuth2AuthStrategy, deps: [{ token: i1.HttpClient }, { token: i2.ActivatedRoute }, { token: NB_WINDOW }], target: i0.ɵɵFactoryTarget.Injectable }); NbOAuth2AuthStrategy.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.4", ngImport: i0, type: NbOAuth2AuthStrategy }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.4", ngImport: i0, type: NbOAuth2AuthStrategy, decorators: [{ type: Injectable }], ctorParameters: function () { return [{ type: i1.HttpClient }, { type: i2.ActivatedRoute }, { type: undefined, decorators: [{ type: Inject, args: [NB_WINDOW] }] }]; } }); //# 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* @license\n * Copyright Akveo. All Rights Reserved.\n * Licensed under the MIT License. See License.txt in the project root for license information.\n */\nimport { Inject, Injectable } from '@angular/core';\nimport { HttpClient, HttpErrorResponse, HttpHeaders } from '@angular/common/http';\nimport { ActivatedRoute } from '@angular/router';\nimport { Observable, of as observableOf } from 'rxjs';\nimport { switchMap, map, catchError } from 'rxjs/operators';\nimport { NB_WINDOW } from '@nebular/theme';\n\nimport { NbAuthStrategy } from '../auth-strategy';\nimport { NbAuthIllegalTokenError, NbAuthRefreshableToken, NbAuthToken } from '../../services/token/token';\nimport { NbAuthResult } from '../../services/auth-result';\nimport {\n  NbOAuth2AuthStrategyOptions,\n  NbOAuth2ResponseType,\n  auth2StrategyOptions,\n  NbOAuth2GrantType,\n  NbOAuth2ClientAuthMethod,\n} from './oauth2-strategy.options';\nimport { NbAuthStrategyClass } from '../../auth.options';\n\n/**\n * OAuth2 authentication strategy.\n *\n * Strategy settings:\n *\n * ```ts\n * export enum NbOAuth2ResponseType {\n *   CODE = 'code',\n *   TOKEN = 'token',\n * }\n *\n * export enum NbOAuth2GrantType {\n *   AUTHORIZATION_CODE = 'authorization_code',\n *   PASSWORD = 'password',\n *   REFRESH_TOKEN = 'refresh_token',\n * }\n *\n * export class NbOAuth2AuthStrategyOptions {\n *   name: string;\n *   baseEndpoint?: string = '';\n *   clientId: string = '';\n *   clientSecret: string = '';\n *   clientAuthMethod: string = NbOAuth2ClientAuthMethod.NONE;\n *   redirect?: { success?: string; failure?: string } = {\n *     success: '/',\n *     failure: null,\n *   };\n *   defaultErrors?: any[] = ['Something went wrong, please try again.'];\n *   defaultMessages?: any[] = ['You have been successfully authenticated.'];\n *   authorize?: {\n *     endpoint?: string;\n *     redirectUri?: string;\n *     responseType?: string;\n *     requireValidToken: true,\n *     scope?: string;\n *     state?: string;\n *     params?: { [key: string]: string };\n *   } = {\n *     endpoint: 'authorize',\n *     responseType: NbOAuth2ResponseType.CODE,\n *   };\n *   token?: {\n *     endpoint?: string;\n *     grantType?: string;\n *     requireValidToken: true,\n *     redirectUri?: string;\n *     scope?: string;\n *     class: NbAuthTokenClass,\n *   } = {\n *     endpoint: 'token',\n *     grantType: NbOAuth2GrantType.AUTHORIZATION_CODE,\n *     class: NbAuthOAuth2Token,\n *   };\n *   refresh?: {\n *     endpoint?: string;\n *     grantType?: string;\n *     scope?: string;\n *     requireValidToken: true,\n *   } = {\n *     endpoint: 'token',\n *     grantType: NbOAuth2GrantType.REFRESH_TOKEN,\n *   };\n * }\n * ```\n *\n */\n@Injectable()\nexport class NbOAuth2AuthStrategy extends NbAuthStrategy {\n  static setup(options: NbOAuth2AuthStrategyOptions): [NbAuthStrategyClass, NbOAuth2AuthStrategyOptions] {\n    return [NbOAuth2AuthStrategy, options];\n  }\n\n  get responseType() {\n    return this.getOption('authorize.responseType');\n  }\n\n  get clientAuthMethod() {\n    return this.getOption('clientAuthMethod');\n  }\n\n  protected redirectResultHandlers: { [key: string]: Function } = {\n    [NbOAuth2ResponseType.CODE]: () => {\n      return observableOf(this.route.snapshot.queryParams).pipe(\n        switchMap((params: any) => {\n          if (params.code) {\n            return this.requestToken(params.code);\n          }\n\n          return observableOf(\n            new NbAuthResult(false, params, this.getOption('redirect.failure'), this.getOption('defaultErrors'), []),\n          );\n        }),\n      );\n    },\n    [NbOAuth2ResponseType.TOKEN]: () => {\n      const module = 'authorize';\n      const requireValidToken = this.getOption(`${module}.requireValidToken`);\n      return observableOf(this.route.snapshot.fragment).pipe(\n        map((fragment) => this.parseHashAsQueryParams(fragment)),\n        map((params: any) => {\n          if (!params.error) {\n            return new NbAuthResult(\n              true,\n              params,\n              this.getOption('redirect.success'),\n              [],\n              this.getOption('defaultMessages'),\n              this.createToken(params, requireValidToken),\n            );\n          }\n          return new NbAuthResult(\n            false,\n            params,\n            this.getOption('redirect.failure'),\n            this.getOption('defaultErrors'),\n            [],\n          );\n        }),\n        catchError((err) => {\n          const errors = [];\n          if (err instanceof NbAuthIllegalTokenError) {\n            errors.push(err.message);\n          } else {\n            errors.push('Something went wrong.');\n          }\n          return observableOf(new NbAuthResult(false, err, this.getOption('redirect.failure'), errors));\n        }),\n      );\n    },\n  };\n\n  protected redirectResults: { [key: string]: Function } = {\n    [NbOAuth2ResponseType.CODE]: () => {\n      return observableOf(this.route.snapshot.queryParams).pipe(\n        map((params: any) => !!(params && (params.code || params.error))),\n      );\n    },\n    [NbOAuth2ResponseType.TOKEN]: () => {\n      return observableOf(this.route.snapshot.fragment).pipe(\n        map((fragment) => this.parseHashAsQueryParams(fragment)),\n        map((params: any) => !!(params && (params.access_token || params.error))),\n      );\n    },\n  };\n\n  protected defaultOptions: NbOAuth2AuthStrategyOptions = auth2StrategyOptions;\n\n  constructor(protected http: HttpClient, protected route: ActivatedRoute, @Inject(NB_WINDOW) protected window: any) {\n    super();\n  }\n\n  authenticate(data?: any): Observable<NbAuthResult> {\n    if (this.getOption('token.grantType') === NbOAuth2GrantType.PASSWORD) {\n      return this.passwordToken(data.email, data.password);\n    } else {\n      return this.isRedirectResult().pipe(\n        switchMap((result: boolean) => {\n          if (!result) {\n            this.authorizeRedirect();\n            return observableOf(new NbAuthResult(true));\n          }\n          return this.getAuthorizationResult();\n        }),\n      );\n    }\n  }\n\n  getAuthorizationResult(): Observable<any> {\n    const redirectResultHandler = this.redirectResultHandlers[this.responseType];\n    if (redirectResultHandler) {\n      return redirectResultHandler.call(this);\n    }\n\n    throw new Error(`'${this.responseType}' responseType is not supported,\n                      only 'token' and 'code' are supported now`);\n  }\n\n  refreshToken(token: NbAuthRefreshableToken): Observable<NbAuthResult> {\n    const module = 'refresh';\n    const url = this.getActionEndpoint(module);\n    const requireValidToken = this.getOption(`${module}.requireValidToken`);\n\n    return this.http.post(url, this.buildRefreshRequestData(token), { headers: this.getHeaders() }).pipe(\n      map((res) => {\n        return new NbAuthResult(\n          true,\n          res,\n          this.getOption('redirect.success'),\n          [],\n          this.getOption('defaultMessages'),\n          this.createRefreshedToken(res, token, requireValidToken),\n        );\n      }),\n      catchError((res) => this.handleResponseError(res)),\n    );\n  }\n\n  passwordToken(username: string, password: string): Observable<NbAuthResult> {\n    const module = 'token';\n    const url = this.getActionEndpoint(module);\n    const requireValidToken = this.getOption(`${module}.requireValidToken`);\n\n    return this.http.post(url, this.buildPasswordRequestData(username, password), { headers: this.getHeaders() }).pipe(\n      map((res) => {\n        return new NbAuthResult(\n          true,\n          res,\n          this.getOption('redirect.success'),\n          [],\n          this.getOption('defaultMessages'),\n          this.createToken(res, requireValidToken),\n        );\n      }),\n      catchError((res) => this.handleResponseError(res)),\n    );\n  }\n\n  protected authorizeRedirect() {\n    this.window.location.href = this.buildRedirectUrl();\n  }\n\n  protected isRedirectResult(): Observable<boolean> {\n    return this.redirectResults[this.responseType].call(this);\n  }\n\n  protected requestToken(code: string) {\n    const module = 'token';\n    const url = this.getActionEndpoint(module);\n    const requireValidToken = this.getOption(`${module}.requireValidToken`);\n\n    return this.http.post(url, this.buildCodeRequestData(code), { headers: this.getHeaders() }).pipe(\n      map((res) => {\n        return new NbAuthResult(\n          true,\n          res,\n          this.getOption('redirect.success'),\n          [],\n          this.getOption('defaultMessages'),\n          this.createToken(res, requireValidToken),\n        );\n      }),\n      catchError((res) => this.handleResponseError(res)),\n    );\n  }\n\n  protected buildCodeRequestData(code: string): any {\n    const params = {\n      grant_type: this.getOption('token.grantType'),\n      code: code,\n      redirect_uri: this.getOption('token.redirectUri'),\n      client_id: this.getOption('clientId'),\n    };\n    return this.urlEncodeParameters(this.cleanParams(this.addCredentialsToParams(params)));\n  }\n\n  protected buildRefreshRequestData(token: NbAuthRefreshableToken): any {\n    const params = {\n      grant_type: this.getOption('refresh.grantType'),\n      refresh_token: token.getRefreshToken(),\n      scope: this.getOption('refresh.scope'),\n      client_id: this.getOption('clientId'),\n    };\n    return this.urlEncodeParameters(this.cleanParams(this.addCredentialsToParams(params)));\n  }\n\n  protected buildPasswordRequestData(username: string, password: string): string {\n    const params = {\n      grant_type: this.getOption('token.grantType'),\n      username: username,\n      password: password,\n      scope: this.getOption('token.scope'),\n    };\n    return this.urlEncodeParameters(this.cleanParams(this.addCredentialsToParams(params)));\n  }\n\n  protected buildAuthHeader(): HttpHeaders | undefined {\n    if (this.clientAuthMethod === NbOAuth2ClientAuthMethod.BASIC) {\n      if (this.getOption('clientId') && this.getOption('clientSecret')) {\n        return new HttpHeaders({\n          Authorization: 'Basic ' + btoa(this.getOption('clientId') + ':' + this.getOption('clientSecret')),\n        });\n      } else {\n        throw Error('For basic client authentication method, please provide both clientId & clientSecret.');\n      }\n    }\n    return undefined;\n  }\n\n  protected getHeaders(): HttpHeaders {\n    let headers = super.getHeaders();\n    headers = headers.append('Content-Type', 'application/x-www-form-urlencoded');\n\n    const authHeaders = this.buildAuthHeader();\n    if (authHeaders === undefined) {\n      return headers;\n    }\n\n    for (const headerKey of authHeaders.keys()) {\n      for (const headerValue of authHeaders.getAll(headerKey)) {\n        headers = headers.append(headerKey, headerValue);\n      }\n    }\n\n    return headers;\n  }\n\n  protected cleanParams(params: any): any {\n    Object.entries(params).forEach(([key, val]) => !val && delete params[key]);\n    return params;\n  }\n\n  protected addCredentialsToParams(params: any): any {\n    if (this.clientAuthMethod === NbOAuth2ClientAuthMethod.REQUEST_BODY) {\n      if (this.getOption('clientId') && this.getOption('clientSecret')) {\n        return {\n          ...params,\n          client_id: this.getOption('clientId'),\n          client_secret: this.getOption('clientSecret'),\n        };\n      } else {\n        throw Error('For request body client authentication method, please provide both clientId & clientSecret.');\n      }\n    }\n    return params;\n  }\n\n  protected handleResponseError(res: any): Observable<NbAuthResult> {\n    let errors = [];\n    if (res instanceof HttpErrorResponse) {\n      if (res.error.error_description) {\n        errors.push(res.error.error_description);\n      } else {\n        errors = this.getOption('defaultErrors');\n      }\n    } else if (res instanceof NbAuthIllegalTokenError) {\n      errors.push(res.message);\n    } else {\n      errors.push('Something went wrong.');\n    }\n\n    return observableOf(new NbAuthResult(false, res, this.getOption('redirect.failure'), errors, []));\n  }\n\n  protected buildRedirectUrl() {\n    const params = {\n      response_type: this.getOption('authorize.responseType'),\n      client_id: this.getOption('clientId'),\n      redirect_uri: this.getOption('authorize.redirectUri'),\n      scope: this.getOption('authorize.scope'),\n      state: this.getOption('authorize.state'),\n\n      ...this.getOption('authorize.params'),\n    };\n\n    const endpoint = this.getActionEndpoint('authorize');\n    const query = this.urlEncodeParameters(this.cleanParams(params));\n\n    return `${endpoint}?${query}`;\n  }\n\n  protected parseHashAsQueryParams(hash: string): { [key: string]: string } {\n    return hash\n      ? hash.split('&').reduce((acc: any, part: string) => {\n          const item = part.split('=');\n          acc[item[0]] = decodeURIComponent(item[1]);\n          return acc;\n        }, {})\n      : {};\n  }\n\n  protected urlEncodeParameters(params: any): string {\n    return Object.keys(params)\n      .map((k) => {\n        return `${encodeURIComponent(k)}=${encodeURIComponent(params[k])}`;\n      })\n      .join('&');\n  }\n\n  protected createRefreshedToken(res, existingToken: NbAuthRefreshableToken, requireValidToken: boolean): NbAuthToken {\n    type AuthRefreshToken = NbAuthRefreshableToken & NbAuthToken;\n\n    const refreshedToken: AuthRefreshToken = this.createToken<AuthRefreshToken>(res, requireValidToken);\n    if (!refreshedToken.getRefreshToken() && existingToken.getRefreshToken()) {\n      refreshedToken.setRefreshToken(existingToken.getRefreshToken());\n    }\n    return refreshedToken;\n  }\n\n  register(data?: any): Observable<NbAuthResult> {\n    throw new Error('`register` is not supported by `NbOAuth2AuthStrategy`, use `authenticate`.');\n  }\n\n  requestPassword(data?: any): Observable<NbAuthResult> {\n    throw new Error('`requestPassword` is not supported by `NbOAuth2AuthStrategy`, use `authenticate`.');\n  }\n\n  resetPassword(data: any = {}): Observable<NbAuthResult> {\n    throw new Error('`resetPassword` is not supported by `NbOAuth2AuthStrategy`, use `authenticate`.');\n  }\n\n  logout(): Observable<NbAuthResult> {\n    return observableOf(new NbAuthResult(true));\n  }\n}\n"]}