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token_request_handler.ts
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token_request_handler.ts
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/*
* Copyright 2017 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing permissions and
* limitations under the License.
*/
import {AuthorizationServiceConfiguration} from './authorization_service_configuration';
import {AppAuthError} from './errors';
import {log} from './logger';
import {BasicQueryStringUtils, QueryStringUtils} from './query_string_utils';
import {RevokeTokenRequest} from './revoke_token_request';
import {TokenRequest} from './token_request';
import {TokenError, TokenErrorJson, TokenResponse, TokenResponseJson} from './token_response';
import {StringMap} from './types';
import {JQueryRequestor, Requestor} from './xhr';
/**
* Represents an interface which can make a token request.
*/
export interface TokenRequestHandler {
/**
* Performs the token request, given the service configuration.
*/
performTokenRequest(configuration: AuthorizationServiceConfiguration, request: TokenRequest):
Promise<TokenResponse>;
performRevokeTokenRequest(
configuration: AuthorizationServiceConfiguration,
request: RevokeTokenRequest): Promise<boolean>;
}
/**
* The default token request handler.
*/
export class BaseTokenRequestHandler implements TokenRequestHandler {
constructor(
public readonly requestor: Requestor = new JQueryRequestor(),
public readonly utils: QueryStringUtils = new BasicQueryStringUtils()) {}
private isTokenResponse(response: TokenResponseJson|
TokenErrorJson): response is TokenResponseJson {
return (response as TokenErrorJson).error === undefined;
}
performRevokeTokenRequest(
configuration: AuthorizationServiceConfiguration,
request: RevokeTokenRequest): Promise<boolean> {
let revokeTokenResponse = this.requestor.xhr<boolean>({
url: configuration.revocationEndpoint,
method: 'POST',
dataType: 'json', // adding implicit dataType
headers: {'Content-Type': 'application/x-www-form-urlencoded'},
data: request.toJson()
});
return revokeTokenResponse.then(response => {
return true;
});
}
performTokenRequest(configuration: AuthorizationServiceConfiguration, request: TokenRequest):
Promise<TokenResponse> {
let tokenResponse = this.requestor.xhr<TokenResponseJson|TokenErrorJson>({
url: configuration.tokenEndpoint,
method: 'POST',
dataType: 'json', // adding implicit dataType
headers: {'Content-Type': 'application/x-www-form-urlencoded'},
data: this.utils.stringify(request.toStringMap())
});
return tokenResponse.then(response => {
if (this.isTokenResponse(response)) {
return TokenResponse.fromJson(response);
} else {
return Promise.reject<TokenResponse>(
new AppAuthError(response.error, TokenError.fromJson(response)));
}
});
}
}