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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 15x 1x 6x 6x 6x 3x 3x 3x 1x 7x 7x 7x 7x 6x 7x 7x 7x 7x 1x 1x 6x 6x 6x 6x 6x | import fetch, { RequestInit, Response } from 'node-fetch'; import http from 'http'; import https from 'https'; import { URL } from 'url'; import dbg from 'debug'; import { HandlerFactory } from './client/HandlerFactory'; import { ClientCookie } from './client/ClientCookie'; import { ClientInfo } from './client/ClientInfo'; import { SecuritySupportProvider } from '..'; const debug = dbg('node-expose-sspi:client'); const httpAgent = new http.Agent({ keepAlive: true, }); const httpsAgent = new https.Agent({ keepAlive: true, }); const agent = (parsedURL: URL): http.Agent => parsedURL.protocol === 'http:' ? httpAgent : httpsAgent; /** * Allow to fetch url with a system that uses the negotiate protocol. * Cookies are managed if necessary during the process. * * @export * @class Client */ export class Client { clientCookie = new ClientCookie(); clientInfo = new ClientInfo(); agent = agent; /** * Set the credentials for running the client as another user. * * By default, the credentials are the logged windows account. * * @param {string} domain * @param {string} user * @param {string} password * @memberof Client */ setCredentials(domain: string, user: string, password: string): void { this.clientInfo.domain = domain; this.clientInfo.user = user; this.clientInfo.password = password; } /** * Force the targetName to a value. * * For Kerberos, the targetName is the SPN (Service Principal Name). * * @param {string} targetName * @memberof Client */ setTargetName(targetName: string): void { this.clientInfo.targetName = targetName; } /** * Set the Security Support Provider (NTLM, Kerberos, Negotiate) * * @param {SecuritySupportProvider} ssp * @memberof Client */ setSSP(ssp: SecuritySupportProvider): void { this.clientInfo.ssp = ssp; } /** * Works as the fetch function of node-fetch node module. * This function can handle the negotiate protocol with SPNEGO tokens. * * @param {string} resource - the URL to fetch * @param {RequestInit} [init] - the options (headers, body, etc.) * @returns {Promise<Response>} a promise with the HTTP response. * @memberof Client */ async fetch(resource: string, init?: RequestInit): Promise<Response> { const initKeepAlive = { ...init, agent: this.agent }; this.clientCookie.restituteCookies(initKeepAlive); const response = await fetch(resource, initKeepAlive); const result = await this.handleAuth(response, resource, initKeepAlive); return result; } /** * The authentication negotiate protocol is handled by this function. * It is called by `Client.fetch`. * * @private * @param {Response} response * @param {string} resource * @param {RequestInit} [init={}] * @returns {Promise<Response>} * @memberof Client */ private async handleAuth( response: Response, resource: string, init: RequestInit = {} ): Promise<Response> { debug('start response.headers', response.headers); debug('response.status', response.status); // has cookies ? this.clientCookie.saveCookies(response); if (response.status !== 401) { debug('no status 401'); return response; } const authHeader = response.headers.get('www-authenticate'); Iif (authHeader === null) { debug('no header www-authenticate'); return response; } const authenticationType = authHeader.split(/[, ]/)[0]; const handler = HandlerFactory.instantiate(authenticationType); return await handler.handle( this.clientInfo, this.clientCookie, response, resource, init ); } } |