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msalClient.ts
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msalClient.ts
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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
import { CredentialUnavailable } from "./errors";
import {
PublicClientApplication,
Configuration,
AuthorizationCodeRequest,
AuthenticationResult,
DeviceCodeRequest,
ConfidentialClientApplication,
ClientCredentialRequest,
NetworkRequestOptions,
NetworkResponse,
INetworkModule
} from "@azure/msal-node";
import axios, { AxiosRequestConfig } from "axios";
import { IdentityClient, TokenCredentialOptions } from "./identityClient";
import { AccessToken } from "@azure/core-http";
import { credentialLogger } from "../util/logging";
import { NodeAuthOptions } from "@azure/msal-node/dist/config/Configuration";
const logger = credentialLogger("InteractiveBrowserCredential");
/**
* The record to use to find the cached tokens in the cache
*/
export interface AuthenticationRecord {
/**
* The associated authority, if used
*/
authority?: string;
/**
* The home account Id
*/
homeAccountId: string;
/**
* The login environment, eg "login.windows.net"
*/
environment: string;
/**
* The associated tenant ID
*/
tenantId: string;
/**
* Local, tenant-specific account identifer for this account object, usually used in legacy cases
*/
localAccountId: string;
/**
* The username of the logged in account
*/
username: string;
}
export class AuthenticationRequired extends CredentialUnavailable {}
export class MsalClient {
private persistenceEnabled: boolean;
private authenticationRecord: AuthenticationRecord | undefined;
private identityClient: IdentityClient;
private pca: PublicClientApplication | undefined;
private cca: ConfidentialClientApplication | undefined;
private msalConfig: NodeAuthOptions;
constructor(
msalConfig: NodeAuthOptions,
persistenceEnabled: boolean,
authenticationRecord?: AuthenticationRecord,
options?: TokenCredentialOptions
) {
this.identityClient = new IdentityClient(options);
this.msalConfig = msalConfig;
this.persistenceEnabled = persistenceEnabled;
this.authenticationRecord = authenticationRecord;
}
async prepareClientApplications(): Promise<void> {
// If we've already initialized the public client application, return
if (this.pca) {
return;
}
// Construct the public client application, since it hasn't been initialized, yet
const clientConfig: Configuration = {
auth: this.msalConfig,
cache: undefined,
system: { networkClient: this.identityClient }
};
this.pca = new PublicClientApplication(clientConfig);
}
async acquireTokenFromCache(scopes: string[]): Promise<AccessToken | null> {
await this.prepareClientApplications();
if (!this.persistenceEnabled || !this.authenticationRecord) {
throw new AuthenticationRequired();
}
const silentRequest = {
account: this.authenticationRecord!,
scopes
};
try {
const response = await this.pca!.acquireTokenSilent(silentRequest);
logger.info("Successful silent token acquisition");
if (response && response.expiresOn) {
return {
expiresOnTimestamp: response.expiresOn.getTime(),
token: response.accessToken
};
} else {
throw new AuthenticationRequired("Could not authenticate silently using the cache");
}
} catch (e) {
throw new AuthenticationRequired("Could not authenticate silently using the cache");
}
}
async getAuthCodeUrl(request: { scopes: string[]; redirectUri: string }): Promise<string> {
await this.prepareClientApplications();
return this.pca!.getAuthCodeUrl(request);
}
async acquireTokenByCode(
request: AuthorizationCodeRequest
): Promise<AuthenticationResult | null> {
await this.prepareClientApplications();
return this.pca!.acquireTokenByCode(request);
}
async acquireTokenByDeviceCode(request: DeviceCodeRequest): Promise<AuthenticationResult | null> {
await this.prepareClientApplications();
return this.pca!.acquireTokenByDeviceCode(request);
}
async acquireTokenByClientCredential(
request: ClientCredentialRequest
): Promise<AuthenticationResult | null> {
await this.prepareClientApplications();
return this.cca!.acquireTokenByClientCredential(request);
}
}
export enum HttpMethod {
GET = "get",
POST = "post"
}
/**
* This class implements the API for network requests.
*/
export class HttpClient implements INetworkModule {
/**
* Http Get request
* @param url -
* @param options -
*/
async sendGetRequestAsync<T>(
url: string,
options?: NetworkRequestOptions
): Promise<NetworkResponse<T>> {
const request: AxiosRequestConfig = {
method: HttpMethod.GET,
url: url,
headers: options && options.headers,
validateStatus: () => true
};
const response = await axios(request);
const out = {
headers: response.headers,
body: response.data as T,
status: response.status
};
return out;
}
/**
* Http Post request
* @param url -
* @param options -
*/
async sendPostRequestAsync<T>(
url: string,
options?: NetworkRequestOptions
): Promise<NetworkResponse<T>> {
const request: AxiosRequestConfig = {
method: HttpMethod.POST,
url: url,
data: (options && options.body) || "",
headers: options && options.headers,
validateStatus: () => true
};
const response = await axios(request);
const out = {
headers: response.headers,
body: response.data as T,
status: response.status
};
return out;
}
}