Merge pull request #614 from sasjs/hot-fix-sasjs-server

fix(sasjs): restrict usage of localstorage for node env

.github/dependabot.yml

@@ -1,7 +1,7 @@
 version: 2
 updates:
-- package-ecosystem: npm
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
+  - package-ecosystem: npm
+    directory: '/'
+    schedule:
+      interval: monthly
+    open-pull-requests-limit: 10

.github/workflows/build.yml

@@ -13,14 +13,15 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [15.x]
+        node-version: [lts/fermium]
 
     steps:
       - uses: actions/checkout@v2
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
+          cache: npm
       - name: Install Dependencies
         run: npm ci
       - name: Check code style

.gitignore

@@ -5,4 +5,4 @@ build
 
 /coverage
 
-.DS_Store
+.DS_Store

.npmignore

@@ -1,4 +1,6 @@
 sasjs-tests/
 docs/
 .github/
-CONTRIBUTING.md
+*.md
+*.spec.ts
+.all-contributorsrc

README.md

@@ -36,7 +36,7 @@ Ok ok. Deploy this [example.html](https://raw.githubusercontent.com/sasjs/adapte
 
 The backend part can be deployed as follows:
 
-```
+```sas
 %let appLoc=/Public/app/readme;  /* Metadata or Viya Folder per SASjs config */
 filename mc url "https://raw.githubusercontent.com/sasjs/core/main/all.sas";
 %inc mc; /* compile macros (can also be downloaded & compiled seperately) */
@@ -85,11 +85,11 @@ let sasJs = new SASjs.default(
 );
 ```
 If you've installed it via NPM, you can import it as a default import like so:
-```
+```js
   import SASjs from '@sasjs/adapter';
 ```
 You can then instantiate it with:
-```
+```js
 const sasJs = new SASjs({your config})
 ```
 
@@ -119,6 +119,7 @@ sasJs.request("/path/to/my/service", dataObject)
     console.log(response.tablewith2cols1row[0].COL1.value)
   })
 ```
+
 We supply the path to the SAS service, and a data object.  The data object can be null (for services with no input), or can contain one or more tables in the following format:
 
 ```javascript
@@ -146,6 +147,7 @@ The adapter will also cache the logs (if debug enabled) and even the work tables
 The SAS side is handled by a number of macros in the [macro core](https://github.com/sasjs/core) library.
 
 The following snippet shows the process of SAS tables arriving / leaving:
+
 ```sas
 /* fetch all input tables sent from frontend - they arrive as work tables */
 %webout(FETCH)
@@ -161,7 +163,6 @@ run;
 %webout(OBJ,tables,fmt=N) /* unformatted (raw) data */
 %webout(OBJ,tables,label=newtable) /* rename tables on export */
 %webout(CLOSE) /* close the JSON and send some extra useful variables too */
-
 ```
 
 ## Configuration
@@ -172,6 +173,7 @@ Configuration on the client side involves passing an object on startup, which ca
 * `serverType` - either `SAS9` or `SASVIYA`.
 * `serverUrl` - the location (including http protocol and port) of the SAS Server. Can be omitted, eg if serving directly from the SAS Web Server, or in streaming mode.
 * `debug` - if `true` then SAS Logs and extra debug information is returned.
+* `LoginMechanism` - either `Default` or `Redirected`.  If `Redirected` then authentication occurs through the injection of an additional screen, which contains the SASLogon prompt.  This allows for more complex authentication flows (such as 2FA) and avoids the need to handle passwords in the application itself.  The styling of the redirect flow can also be modified.  If left at "Default" then the developer must capture the username and password and use these with the `.login()` method.
 * `useComputeApi` - Only relevant when the serverType is `SASVIYA`. If `true` the [Compute API](#using-the-compute-api) is used.  If `false` the [JES API](#using-the-jes-api) is used.  If `null` or `undefined` the [Web](#using-jes-web-app) approach is used.
 * `contextName` - Compute context on which the requests will be called.  If missing or not provided, defaults to `Job Execution Compute context`.
 
@@ -196,7 +198,7 @@ Here we are running Jobs using the Job Execution Service except this time we are
 
 This approach (`useComputeApi: false`) also ensures that jobs are displayed in Environment Manager.
 
-```
+```json
 {
   appLoc:"/Your/Path",
   serverType:"SASVIYA",
@@ -210,12 +212,12 @@ This approach is by far the fastest, as a result of the optimisations we have bu
 
 With this approach (`useComputeApi: true`), the requests/logs will _not_ appear in the list in Environment manager.
 
-```
+```json
 {
   appLoc:"/Your/Path",
   serverType:"SASVIYA",
   useComputeApi: true,
-  contextName: 'yourComputeContext'
+  contextName: "yourComputeContext"
 }
 ```
 

checkNodeVersion.js

@@ -0,0 +1,16 @@
+const result = process.versions
+if (result && result.node) {
+  if (parseInt(result.node) < 14) {
+    console.log(
+      '\x1b[31m%s\x1b[0m',
+      `❌ Process failed due to Node Version,\nPlease install and use Node Version >= 14\nYour current Node Version is: ${result.node}`
+    )
+    process.exit(1)
+  }
+} else {
+  console.log(
+    '\x1b[31m%s\x1b[0m',
+    'Something went wrong while checking Node version'
+  )
+  process.exit(1)
+}

package.json

@@ -3,8 +3,10 @@
   "description": "JavaScript adapter for SAS",
   "homepage": "https://adapter.sasjs.io",
   "scripts": {
+    "preinstall": "node checkNodeVersion",
+    "prebuild": "node checkNodeVersion",
     "build": "rimraf build && rimraf node && mkdir node && copyfiles -u 1 \"./src/**/*\" ./node && webpack && rimraf build/src && rimraf node",
-    "package:lib": "npm run build && copyfiles ./package.json build && cd build && npm version \"5.0.0\" && npm pack",
+    "package:lib": "npm run build && copyfiles ./package.json ./checkNodeVersion.js build && cd build && npm version \"5.0.0\" && npm pack",
     "publish:lib": "npm run build && cd build && npm publish",
     "lint:fix": "npx prettier --write \"src/**/*.{ts,tsx,js,jsx,html,css,sass,less,json,yml,md,graphql}\" && npx prettier --write \"sasjs-tests/src/**/*.{ts,tsx,js,jsx,html,css,sass,less,json,yml,md,graphql}\"",
     "lint": "npx prettier --check \"src/**/*.{ts,tsx,js,jsx,html,css,sass,less,json,yml,md,graphql}\" && npx prettier --check \"sasjs-tests/src/**/*.{ts,tsx,js,jsx,html,css,sass,less,json,yml,md,graphql}\"",
@@ -39,42 +41,43 @@
   "license": "ISC",
   "devDependencies": {
     "@types/axios": "^0.14.0",
+    "@types/express": "^4.17.13",
     "@types/form-data": "^2.5.0",
-    "@types/jest": "^26.0.24",
+    "@types/jest": "^27.0.2",
     "@types/mime": "^2.0.3",
+    "@types/pem": "^1.9.6",
     "@types/tough-cookie": "^4.0.1",
     "copyfiles": "^2.4.1",
     "cp": "^0.2.0",
     "dotenv": "^10.0.0",
-    "jest": "^27.0.6",
+    "express": "^4.17.1",
+    "jest": "^27.2.0",
     "jest-extended": "^0.11.5",
     "node-polyfill-webpack-plugin": "^1.1.4",
     "path": "^0.12.7",
+    "pem": "^1.14.4",
     "process": "^0.11.10",
     "rimraf": "^3.0.2",
-    "semantic-release": "^17.4.4",
-    "terser-webpack-plugin": "^5.1.4",
+    "semantic-release": "^18.0.0",
+    "terser-webpack-plugin": "^5.2.4",
     "ts-jest": "^27.0.3",
-    "ts-loader": "^9.2.2",
+    "ts-loader": "^9.2.6",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.18.0",
-    "typedoc": "^0.21.4",
+    "typedoc": "0.19.2",
     "typedoc-neo-theme": "^1.1.1",
     "typedoc-plugin-external-module-name": "^4.0.6",
-    "typescript": "^4.3.5",
-    "webpack": "^5.44.0",
+    "typescript": "4.3.5",
+    "webpack": "^5.56.0",
     "webpack-cli": "^4.7.2"
   },
   "main": "index.js",
   "dependencies": {
-    "@sasjs/utils": "^2.27.1",
-    "axios": "^0.21.1",
+    "@sasjs/utils": "^2.32.0",
+    "axios": "^0.21.4",
     "axios-cookiejar-support": "^1.0.1",
     "form-data": "^4.0.0",
     "https": "^1.0.0",
     "tough-cookie": "^4.0.0"
-  },
-  "engines": {
-    "node": ">=15"
   }
 }

sasjs-tests/README.md

@@ -47,7 +47,7 @@ npm i -g copyfiles
 ```
 and then run to build:
 ```bash
-npm run update:adapter && npm run build 
+npm run update:adapter && npm run build
 ```
 when it finishes run to deploy:
 ```bash
@@ -70,7 +70,7 @@ parmcards4;
   %webout(FETCH)
   %webout(OPEN)
   %macro x();
-  %do i=1 %to &_webin_file_count; %webout(OBJ,&&_webin_name&i) %end;
+  %do i=1 %to &_webin_file_count; %webout(OBJ,&&_webin_name&i,missing=STRING) %end;
   %mend; %x()
   %webout(CLOSE)
 ;;;;
@@ -79,7 +79,7 @@ parmcards4;
   %webout(FETCH)
   %webout(OPEN)
   %macro x();
-  %do i=1 %to &_webin_file_count; %webout(ARR,&&_webin_name&i) %end;
+  %do i=1 %to &_webin_file_count; %webout(ARR,&&_webin_name&i,missing=STRING) %end;
   %mend; %x()
   %webout(CLOSE)
 ;;;;
@@ -111,7 +111,7 @@ parmcards4;
   %macro x();
   %do i=1 %to %sysfunc(countw(&sasjs_tables));
     %let table=%scan(&sasjs_tables,&i);
-    %webout(OBJ,&table)
+    %webout(OBJ,&table,missing=STRING)
   %end;
   %mend;
   %x()
@@ -125,7 +125,7 @@ parmcards4;
   %macro x();
   %do i=1 %to %sysfunc(countw(&sasjs_tables));
     %let table=%scan(&sasjs_tables,&i);
-    %webout(ARR,&table)
+    %webout(ARR,&table,missing=STRING)
   %end;
   %mend;
   %x()

sasjs-tests/package.json

@@ -5,7 +5,7 @@
   "private": true,
   "dependencies": {
     "@sasjs/adapter": "file:../build/sasjs-adapter-5.0.0.tgz",
-    "@sasjs/test-framework": "^1.4.0",
+    "@sasjs/test-framework": "^1.4.2",
     "@types/jest": "^26.0.20",
     "@types/node": "^14.14.41",
     "@types/react": "^17.0.1",

sasjs-tests/src/testSuites/Basic.ts

@@ -1,4 +1,4 @@
-import SASjs, { SASjsConfig } from '@sasjs/adapter'
+import SASjs, { LoginMechanism, SASjsConfig } from '@sasjs/adapter'
 import { TestSuite } from '@sasjs/test-framework'
 import { ServerType } from '@sasjs/utils/types'
 
@@ -13,7 +13,7 @@ const defaultConfig: SASjsConfig = {
   debug: false,
   contextName: 'SAS Job Execution compute context',
   useComputeApi: false,
-  allowInsecureRequests: false
+  loginMechanism: LoginMechanism.Default
 }
 
 const customConfig = {
@@ -41,6 +41,19 @@ export const basicTests = (
       assertion: (response: any) =>
         response && response.isLoggedIn && response.userName === userName
     },
+    {
+      title: 'Fetch username for already logged in user',
+      description: 'Should log the user in',
+      test: async () => {
+        await adapter.logIn(userName, password)
+
+        const newAdapterIns = new SASjs(adapter.getSasjsConfig())
+
+        return await newAdapterIns.checkSession()
+      },
+      assertion: (response: any) =>
+        response?.isLoggedIn && response?.userName === userName
+    },
     {
       title: 'Multiple Log in attempts',
       description:
@@ -48,7 +61,7 @@ export const basicTests = (
       test: async () => {
         await adapter.logOut()
         await adapter.logIn('invalid', 'invalid')
-        return adapter.logIn(userName, password)
+        return await adapter.logIn(userName, password)
       },
       assertion: (response: any) =>
         response && response.isLoggedIn && response.userName === userName
@@ -64,8 +77,8 @@ export const basicTests = (
           'common/sendArr',
           stringData,
           undefined,
-          () => {
-            adapter.logIn(userName, password)
+          async () => {
+            await adapter.logIn(userName, password)
           }
         )
       },
@@ -151,7 +164,7 @@ export const basicTests = (
       description:
         'Should complete successful request with extra attributes present in response',
       test: async () => {
-        const config = {
+        const config: Partial<SASjsConfig> = {
           useComputeApi: false
         }
 

src/FileUploader.ts

@@ -1,100 +0,0 @@
-import { isUrl, getValidJson, parseSasViyaDebugResponse } from './utils'
-import { UploadFile } from './types/UploadFile'
-import { ErrorResponse, LoginRequiredError } from './types/errors'
-import { RequestClient } from './request/RequestClient'
-import { ServerType } from '@sasjs/utils/types'
-import SASjs from './SASjs'
-import { Server } from 'https'
-import { SASjsConfig } from './types'
-import { config } from 'process'
-
-export class FileUploader {
-  constructor(
-    private sasjsConfig: SASjsConfig,
-    private jobsPath: string,
-    private requestClient: RequestClient
-  ) {
-    if (this.sasjsConfig.serverUrl) isUrl(this.sasjsConfig.serverUrl)
-  }
-
-  public uploadFile(sasJob: string, files: UploadFile[], params: any) {
-    if (files?.length < 1)
-      return Promise.reject(
-        new ErrorResponse('At least one file must be provided.')
-      )
-    if (!sasJob || sasJob === '')
-      return Promise.reject(new ErrorResponse('sasJob must be provided.'))
-
-    let paramsString = ''
-
-    for (let param in params) {
-      if (params.hasOwnProperty(param)) {
-        paramsString += `&${param}=${params[param]}`
-      }
-    }
-
-    const program = this.sasjsConfig.appLoc
-      ? this.sasjsConfig.appLoc.replace(/\/?$/, '/') + sasJob.replace(/^\//, '')
-      : sasJob
-    const uploadUrl = `${this.jobsPath}/?${
-      '_program=' + program
-    }${paramsString}`
-
-    const formData = new FormData()
-
-    for (let file of files) {
-      formData.append('file', file.file, file.fileName)
-    }
-
-    const csrfToken = this.requestClient.getCsrfToken('file')
-    if (csrfToken) formData.append('_csrf', csrfToken.value)
-    if (this.sasjsConfig.debug) formData.append('_debug', '131')
-    if (
-      this.sasjsConfig.serverType === ServerType.SasViya &&
-      this.sasjsConfig.contextName
-    )
-      formData.append('_contextname', this.sasjsConfig.contextName)
-
-    const headers = {
-      'cache-control': 'no-cache',
-      Accept: '*/*',
-      'Content-Type': 'text/plain'
-    }
-
-    // currently only web approach is supported for file upload
-    // therefore log is part of response with debug enabled and must be parsed
-    return this.requestClient
-      .post(uploadUrl, formData, undefined, 'application/json', headers)
-      .then(async (res) => {
-        if (
-          this.sasjsConfig.serverType === ServerType.SasViya &&
-          this.sasjsConfig.debug
-        ) {
-          const jsonResponse = await parseSasViyaDebugResponse(
-            res.result as string,
-            this.requestClient,
-            this.sasjsConfig.serverUrl
-          )
-          return typeof jsonResponse === 'string'
-            ? getValidJson(jsonResponse)
-            : jsonResponse
-        }
-
-        return typeof res.result === 'string'
-          ? getValidJson(res.result)
-          : res.result
-
-        //TODO: append to SASjs requests
-      })
-      .catch((err: Error) => {
-        if (err instanceof LoginRequiredError) {
-          return Promise.reject(
-            new ErrorResponse('You must be logged in to upload a file.', err)
-          )
-        }
-        return Promise.reject(
-          new ErrorResponse('File upload request failed.', err)
-        )
-      })
-  }
-}

src/SAS9ApiClient.ts

@@ -1,3 +1,4 @@
+import * as https from 'https'
 import { generateTimestamp } from '@sasjs/utils/time'
 import * as NodeFormData from 'form-data'
 import { Sas9RequestClient } from './request/Sas9RequestClient'
@@ -13,10 +14,10 @@ export class SAS9ApiClient {
   constructor(
     private serverUrl: string,
     private jobsPath: string,
-    allowInsecureRequests: boolean
+    httpsAgentOptions?: https.AgentOptions
   ) {
     if (serverUrl) isUrl(serverUrl)
-    this.requestClient = new Sas9RequestClient(serverUrl, allowInsecureRequests)
+    this.requestClient = new Sas9RequestClient(serverUrl, httpsAgentOptions)
   }
 
   /**

src/SASViyaApiClient.ts

@@ -22,8 +22,8 @@ import { pollJobState } from './api/viya/pollJobState'
 import { getTokens } from './auth/getTokens'
 import { uploadTables } from './api/viya/uploadTables'
 import { executeScript } from './api/viya/executeScript'
-import { getAccessToken } from './auth/getAccessToken'
-import { refreshTokens } from './auth/refreshTokens'
+import { getAccessTokenForViya } from './auth/getAccessTokenForViya'
+import { refreshTokensForViya } from './auth/refreshTokensForViya'
 
 /**
  * A client for interfacing with the SAS Viya REST API.
@@ -51,6 +51,16 @@ export class SASViyaApiClient {
   )
   private folderMap = new Map<string, Job[]>()
 
+  /**
+   * A helper method used to call appendRequest method of RequestClient
+   * @param response - response from sasjs request
+   * @param program - name of program
+   * @param debug - a boolean that indicates whether debug was enabled or not
+   */
+  public appendRequest(response: any, program: string, debug: boolean) {
+    this.requestClient!.appendRequest(response, program, debug)
+  }
+
   public get debug() {
     return this._debug
   }
@@ -524,21 +534,26 @@ export class SASViyaApiClient {
     clientSecret: string,
     authCode: string
   ): Promise<SasAuthResponse> {
-    return getAccessToken(this.requestClient, clientId, clientSecret, authCode)
+    return getAccessTokenForViya(
+      this.requestClient,
+      clientId,
+      clientSecret,
+      authCode
+    )
   }
 
   /**
    * Exchanges the refresh token for an access token for the given client.
    * @param clientId - the client ID to authenticate with.
    * @param clientSecret - the client secret to authenticate with.
-   * @param authCode - the refresh token received from the server.
+   * @param refreshToken - the refresh token received from the server.
    */
   public async refreshTokens(
     clientId: string,
     clientSecret: string,
     refreshToken: string
   ) {
-    return refreshTokens(
+    return refreshTokensForViya(
       this.requestClient,
       clientId,
       clientSecret,

src/SASjs.ts

@@ -1,27 +1,41 @@
 import { compareTimestamps, asyncForEach } from './utils'
-import { SASjsConfig, UploadFile, EditContextInput, PollOptions } from './types'
+import {
+  SASjsConfig,
+  UploadFile,
+  EditContextInput,
+  PollOptions,
+  LoginMechanism,
+  FolderMember,
+  ServiceMember,
+  ExecutionQuery
+} from './types'
 import { SASViyaApiClient } from './SASViyaApiClient'
 import { SAS9ApiClient } from './SAS9ApiClient'
-import { FileUploader } from './FileUploader'
+import { SASjsApiClient, SASjsAuthResponse } from './SASjsApiClient'
 import { AuthManager } from './auth'
 import {
   ServerType,
   MacroVar,
   AuthConfig,
-  ExtraResponseAttributes
+  ExtraResponseAttributes,
+  SasAuthResponse
 } from '@sasjs/utils/types'
 import { RequestClient } from './request/RequestClient'
+import { SasjsRequestClient } from './request/SasjsRequestClient'
 import {
   JobExecutor,
   WebJobExecutor,
   ComputeJobExecutor,
   JesJobExecutor,
-  Sas9JobExecutor
+  Sas9JobExecutor,
+  FileUploader
 } from './job-execution'
 import { ErrorResponse } from './types/errors'
+import { LoginOptions, LoginResult } from './types/Login'
 
 const defaultConfig: SASjsConfig = {
   serverUrl: '',
+  pathSASJS: '/SASjsApi/stp/execute',
   pathSAS9: '/SASStoredProcess/do',
   pathSASViya: '/SASJobExecution',
   appLoc: '/Public/seedapp',
@@ -29,7 +43,7 @@ const defaultConfig: SASjsConfig = {
   debug: false,
   contextName: 'SAS Job Execution compute context',
   useComputeApi: null,
-  allowInsecureRequests: false
+  loginMechanism: LoginMechanism.Default
 }
 
 /**
@@ -41,6 +55,7 @@ export default class SASjs {
   private jobsPath: string = ''
   private sasViyaApiClient: SASViyaApiClient | null = null
   private sas9ApiClient: SAS9ApiClient | null = null
+  private sasJSApiClient: SASjsApiClient | null = null
   private fileUploader: FileUploader | null = null
   private authManager: AuthManager | null = null
   private requestClient: RequestClient | null = null
@@ -49,7 +64,7 @@ export default class SASjs {
   private jesJobExecutor: JobExecutor | null = null
   private sas9JobExecutor: JobExecutor | null = null
 
-  constructor(config?: any) {
+  constructor(config?: Partial<SASjsConfig>) {
     this.sasjsConfig = {
       ...defaultConfig,
       ...config
@@ -67,7 +82,7 @@ export default class SASjs {
     userName: string,
     password: string
   ) {
-    this.isMethodSupported('executeScriptSAS9', ServerType.Sas9)
+    this.isMethodSupported('executeScriptSAS9', [ServerType.Sas9])
 
     return await this.sas9ApiClient?.executeScript(
       linesOfCode,
@@ -81,7 +96,7 @@ export default class SASjs {
    * @param accessToken - an access token for an authorized user.
    */
   public async getComputeContexts(accessToken: string) {
-    this.isMethodSupported('getComputeContexts', ServerType.SasViya)
+    this.isMethodSupported('getComputeContexts', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.getComputeContexts(accessToken)
   }
@@ -91,7 +106,7 @@ export default class SASjs {
    * @param accessToken - an access token for an authorized user.
    */
   public async getLauncherContexts(accessToken: string) {
-    this.isMethodSupported('getLauncherContexts', ServerType.SasViya)
+    this.isMethodSupported('getLauncherContexts', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.getLauncherContexts(accessToken)
   }
@@ -100,7 +115,7 @@ export default class SASjs {
    * Gets default(system) launcher contexts.
    */
   public getDefaultComputeContexts() {
-    this.isMethodSupported('getDefaultComputeContexts', ServerType.SasViya)
+    this.isMethodSupported('getDefaultComputeContexts', [ServerType.SasViya])
 
     return this.sasViyaApiClient!.getDefaultComputeContexts()
   }
@@ -110,7 +125,7 @@ export default class SASjs {
    * @param authConfig - an access token, refresh token, client and secret for an authorized user.
    */
   public async getExecutableContexts(authConfig: AuthConfig) {
-    this.isMethodSupported('getExecutableContexts', ServerType.SasViya)
+    this.isMethodSupported('getExecutableContexts', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.getExecutableContexts(authConfig)
   }
@@ -132,7 +147,7 @@ export default class SASjs {
     accessToken: string,
     authorizedUsers?: string[]
   ) {
-    this.isMethodSupported('createComputeContext', ServerType.SasViya)
+    this.isMethodSupported('createComputeContext', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.createComputeContext(
       contextName,
@@ -157,7 +172,7 @@ export default class SASjs {
     launchType: string,
     accessToken: string
   ) {
-    this.isMethodSupported('createLauncherContext', ServerType.SasViya)
+    this.isMethodSupported('createLauncherContext', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.createLauncherContext(
       contextName,
@@ -178,7 +193,7 @@ export default class SASjs {
     editedContext: EditContextInput,
     accessToken?: string
   ) {
-    this.isMethodSupported('editComputeContext', ServerType.SasViya)
+    this.isMethodSupported('editComputeContext', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.editComputeContext(
       contextName,
@@ -193,7 +208,7 @@ export default class SASjs {
    * @param accessToken - an access token for an authorized user.
    */
   public async deleteComputeContext(contextName: string, accessToken?: string) {
-    this.isMethodSupported('deleteComputeContext', ServerType.SasViya)
+    this.isMethodSupported('deleteComputeContext', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.deleteComputeContext(
       contextName,
@@ -211,7 +226,7 @@ export default class SASjs {
     contextName: string,
     accessToken?: string
   ) {
-    this.isMethodSupported('getComputeContextByName', ServerType.SasViya)
+    this.isMethodSupported('getComputeContextByName', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.getComputeContextByName(
       contextName,
@@ -225,7 +240,7 @@ export default class SASjs {
    * @param accessToken - an access token for an authorized user.
    */
   public async getComputeContextById(contextId: string, accessToken?: string) {
-    this.isMethodSupported('getComputeContextById', ServerType.SasViya)
+    this.isMethodSupported('getComputeContextById', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.getComputeContextById(
       contextId,
@@ -234,7 +249,7 @@ export default class SASjs {
   }
 
   public async createSession(contextName: string, accessToken: string) {
-    this.isMethodSupported('createSession', ServerType.SasViya)
+    this.isMethodSupported('createSession', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.createSession(contextName, accessToken)
   }
@@ -254,7 +269,7 @@ export default class SASjs {
     authConfig?: AuthConfig,
     debug?: boolean
   ) {
-    this.isMethodSupported('executeScriptSASViya', ServerType.SasViya)
+    this.isMethodSupported('executeScriptSASViya', [ServerType.SasViya])
     if (!contextName) {
       throw new Error(
         'Context name is undefined. Please set a `contextName` in your SASjs or override config.'
@@ -344,7 +359,7 @@ export default class SASjs {
    * @param accessToken - the access token to authorize the request.
    */
   public async getFolder(folderPath: string, accessToken?: string) {
-    this.isMethodSupported('getFolder', ServerType.SasViya)
+    this.isMethodSupported('getFolder', [ServerType.SasViya])
     return await this.sasViyaApiClient!.getFolder(folderPath, accessToken)
   }
 
@@ -354,7 +369,7 @@ export default class SASjs {
    * @param accessToken - an access token for authorizing the request.
    */
   public async deleteFolder(folderPath: string, accessToken: string) {
-    this.isMethodSupported('deleteFolder', ServerType.SasViya)
+    this.isMethodSupported('deleteFolder', [ServerType.SasViya])
 
     return await this.sasViyaApiClient?.deleteFolder(folderPath, accessToken)
   }
@@ -369,7 +384,7 @@ export default class SASjs {
     accessToken?: string,
     limit?: number
   ) {
-    this.isMethodSupported('listFolder', ServerType.SasViya)
+    this.isMethodSupported('listFolder', [ServerType.SasViya])
 
     return await this.sasViyaApiClient?.listFolder(
       sourceFolder,
@@ -391,7 +406,7 @@ export default class SASjs {
     targetFolderName: string,
     accessToken: string
   ) {
-    this.isMethodSupported('moveFolder', ServerType.SasViya)
+    this.isMethodSupported('moveFolder', [ServerType.SasViya])
 
     return await this.sasViyaApiClient?.moveFolder(
       sourceFolder,
@@ -409,7 +424,7 @@ export default class SASjs {
     accessToken?: string,
     sasApiClient?: SASViyaApiClient
   ) {
-    this.isMethodSupported('createJobDefinition', ServerType.SasViya)
+    this.isMethodSupported('createJobDefinition', [ServerType.SasViya])
 
     if (sasApiClient)
       return await sasApiClient!.createJobDefinition(
@@ -429,7 +444,7 @@ export default class SASjs {
   }
 
   public async getAuthCode(clientId: string) {
-    this.isMethodSupported('getAuthCode', ServerType.SasViya)
+    this.isMethodSupported('getAuthCode', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.getAuthCode(clientId)
   }
@@ -444,8 +459,14 @@ export default class SASjs {
     clientId: string,
     clientSecret: string,
     authCode: string
-  ) {
-    this.isMethodSupported('getAccessToken', ServerType.SasViya)
+  ): Promise<SasAuthResponse | SASjsAuthResponse> {
+    this.isMethodSupported('getAccessToken', [
+      ServerType.SasViya,
+      ServerType.Sasjs
+    ])
+
+    if (this.sasjsConfig.serverType === ServerType.Sasjs)
+      return await this.sasJSApiClient!.getAccessToken(clientId, authCode)
 
     return await this.sasViyaApiClient!.getAccessToken(
       clientId,
@@ -454,12 +475,24 @@ export default class SASjs {
     )
   }
 
+  /**
+   * Exchanges the refresh token for an access token for the given client.
+   * @param clientId - the client ID to authenticate with.
+   * @param clientSecret - the client secret to authenticate with.
+   * @param refreshToken - the refresh token received from the server.
+   */
   public async refreshTokens(
     clientId: string,
     clientSecret: string,
     refreshToken: string
-  ) {
-    this.isMethodSupported('refreshTokens', ServerType.SasViya)
+  ): Promise<SasAuthResponse | SASjsAuthResponse> {
+    this.isMethodSupported('refreshTokens', [
+      ServerType.SasViya,
+      ServerType.Sasjs
+    ])
+
+    if (this.sasjsConfig.serverType === ServerType.Sasjs)
+      return await this.sasJSApiClient!.refreshTokens(refreshToken)
 
     return await this.sasViyaApiClient!.refreshTokens(
       clientId,
@@ -469,7 +502,7 @@ export default class SASjs {
   }
 
   public async deleteClient(clientId: string, accessToken: string) {
-    this.isMethodSupported('deleteClient', ServerType.SasViya)
+    this.isMethodSupported('deleteClient', [ServerType.SasViya])
 
     return await this.sasViyaApiClient!.deleteClient(clientId, accessToken)
   }
@@ -499,7 +532,7 @@ export default class SASjs {
       ...this.sasjsConfig,
       ...config
     }
-    await this.setupConfiguration()
+    this.setupConfiguration()
   }
 
   /**
@@ -525,9 +558,39 @@ export default class SASjs {
    * Logs into the SAS server with the supplied credentials.
    * @param username - a string representing the username.
    * @param password - a string representing the password.
+   * @param clientId - a string representing the client ID.
    */
-  public async logIn(username: string, password: string) {
-    return this.authManager!.logIn(username, password)
+  public async logIn(
+    username?: string,
+    password?: string,
+    clientId?: string,
+    options: LoginOptions = {}
+  ): Promise<LoginResult> {
+    if (this.sasjsConfig.loginMechanism === LoginMechanism.Default) {
+      if (!username || !password)
+        throw new Error(
+          'A username and password are required when using the default login mechanism.'
+        )
+
+      if (this.sasjsConfig.serverType === ServerType.Sasjs) {
+        if (!clientId)
+          throw new Error(
+            'A username, password and clientId are required when using the default login mechanism with server type SASJS.'
+          )
+
+        return this.authManager!.logInSasjs(username, password, clientId)
+      }
+
+      return this.authManager!.logIn(username, password)
+    }
+
+    if (typeof window === typeof undefined) {
+      throw new Error(
+        'The redirected login mechanism is only available for use in the browser.'
+      )
+    }
+
+    return this.authManager!.redirectedLogIn(options)
   }
 
   /**
@@ -544,24 +607,32 @@ export default class SASjs {
    *  Process). Is prepended at runtime with the value of `appLoc`.
    * @param files - array of files to be uploaded, including File object and file name.
    * @param params - request URL parameters.
-   * @param overrideSasjsConfig - object to override existing config (optional)
+   * @param config - provide any changes to the config here, for instance to
+   * enable/disable `debug`. Any change provided will override the global config,
+   * for that particular function call.
+   * @param loginRequiredCallback - a function that is called if the
+   * user is not logged in (eg to display a login form). The request will be
+   * resubmitted after successful login.
    */
-  public uploadFile(
+  public async uploadFile(
     sasJob: string,
     files: UploadFile[],
-    params: any,
-    overrideSasjsConfig?: any
+    params: { [key: string]: any } | null,
+    config: { [key: string]: any } = {},
+    loginRequiredCallback?: () => any
   ) {
-    const fileUploader = overrideSasjsConfig
-      ? new FileUploader(
-          { ...this.sasjsConfig, ...overrideSasjsConfig },
-          this.jobsPath,
-          this.requestClient!
-        )
-      : this.fileUploader ||
-        new FileUploader(this.sasjsConfig, this.jobsPath, this.requestClient!)
+    config = {
+      ...this.sasjsConfig,
+      ...config
+    }
+    const data = { files, params }
 
-    return fileUploader.uploadFile(sasJob, files, params)
+    return await this.fileUploader!.execute(
+      sasJob,
+      data,
+      config,
+      loginRequiredCallback
+    )
   }
 
   /**
@@ -619,6 +690,11 @@ export default class SASjs {
             authConfig
           )
         } else {
+          if (!config.contextName)
+            config = {
+              ...config,
+              contextName: 'SAS Job Execution compute context'
+            }
           return await this.jesJobExecutor!.execute(
             sasJob,
             data,
@@ -730,7 +806,7 @@ export default class SASjs {
     accessToken?: string,
     isForced = false
   ) {
-    this.isMethodSupported('deployServicePack', ServerType.SasViya)
+    this.isMethodSupported('deployServicePack', [ServerType.SasViya])
 
     let sasApiClient: any = null
     if (serverUrl || appLoc) {
@@ -752,7 +828,7 @@ export default class SASjs {
         sasApiClient = new SAS9ApiClient(
           serverUrl,
           this.jobsPath,
-          this.sasjsConfig.allowInsecureRequests
+          this.sasjsConfig.httpsAgentOptions
         )
       }
     } else {
@@ -784,6 +860,14 @@ export default class SASjs {
     )
   }
 
+  public async deployToSASjs(members: [FolderMember, ServiceMember]) {
+    return await this.sasJSApiClient?.deploy(members, this.sasjsConfig.appLoc)
+  }
+
+  public async executeJobSASjs(query: ExecutionQuery) {
+    return await this.sasJSApiClient?.executeJob(query)
+  }
+
   /**
    * Kicks off execution of the given job via the compute API.
    * @returns an object representing the compute session created for the given job.
@@ -817,7 +901,7 @@ export default class SASjs {
       ...config
     }
 
-    this.isMethodSupported('startComputeJob', ServerType.SasViya)
+    this.isMethodSupported('startComputeJob', [ServerType.SasViya])
     if (!config.contextName) {
       throw new Error(
         'Context name is undefined. Please set a `contextName` in your SASjs or override config.'
@@ -842,6 +926,7 @@ export default class SASjs {
     await this.webJobExecutor?.resendWaitingRequests()
     await this.computeJobExecutor?.resendWaitingRequests()
     await this.jesJobExecutor?.resendWaitingRequests()
+    await this.fileUploader?.resendWaitingRequests()
   }
 
   /**
@@ -873,20 +958,18 @@ export default class SASjs {
     })
   }
 
+  /**
+   * this method returns an array of SASjsRequest
+   * @returns SASjsRequest[]
+   */
   public getSasRequests() {
-    const requests = [
-      ...this.webJobExecutor!.getRequests(),
-      ...this.computeJobExecutor!.getRequests(),
-      ...this.jesJobExecutor!.getRequests()
-    ]
+    const requests = [...this.requestClient!.getRequests()]
     const sortedRequests = requests.sort(compareTimestamps)
     return sortedRequests
   }
 
   public clearSasRequests() {
-    this.webJobExecutor!.clearRequests()
-    this.computeJobExecutor!.clearRequests()
-    this.jesJobExecutor!.clearRequests()
+    this.requestClient!.clearRequests()
   }
 
   private setupConfiguration() {
@@ -909,15 +992,28 @@ export default class SASjs {
       this.sasjsConfig.serverUrl = this.sasjsConfig.serverUrl.slice(0, -1)
     }
 
-    this.requestClient = new RequestClient(
-      this.sasjsConfig.serverUrl,
-      this.sasjsConfig.allowInsecureRequests
-    )
+    if (!this.requestClient) {
+      const RequestClientClass =
+        this.sasjsConfig.serverType === ServerType.Sasjs
+          ? SasjsRequestClient
+          : RequestClient
+      this.requestClient = new RequestClientClass(
+        this.sasjsConfig.serverUrl,
+        this.sasjsConfig.httpsAgentOptions
+      )
+    } else {
+      this.requestClient.setConfig(
+        this.sasjsConfig.serverUrl,
+        this.sasjsConfig.httpsAgentOptions
+      )
+    }
 
     this.jobsPath =
       this.sasjsConfig.serverType === ServerType.SasViya
         ? this.sasjsConfig.pathSASViya
-        : this.sasjsConfig.pathSAS9
+        : this.sasjsConfig.serverType === ServerType.Sas9
+        ? this.sasjsConfig.pathSAS9
+        : this.sasjsConfig.pathSASJS || ''
 
     this.authManager = new AuthManager(
       this.sasjsConfig.serverUrl,
@@ -927,34 +1023,49 @@ export default class SASjs {
     )
 
     if (this.sasjsConfig.serverType === ServerType.SasViya) {
-      if (this.sasViyaApiClient)
+      if (this.sasViyaApiClient) {
         this.sasViyaApiClient!.setConfig(
           this.sasjsConfig.serverUrl,
           this.sasjsConfig.appLoc
         )
-      else
+      } else {
         this.sasViyaApiClient = new SASViyaApiClient(
           this.sasjsConfig.serverUrl,
           this.sasjsConfig.appLoc,
           this.sasjsConfig.contextName,
           this.requestClient
         )
+      }
 
       this.sasViyaApiClient.debug = this.sasjsConfig.debug
     }
+
     if (this.sasjsConfig.serverType === ServerType.Sas9) {
-      if (this.sas9ApiClient)
+      if (this.sas9ApiClient) {
         this.sas9ApiClient!.setConfig(this.sasjsConfig.serverUrl)
-      else
+      } else {
         this.sas9ApiClient = new SAS9ApiClient(
           this.sasjsConfig.serverUrl,
           this.jobsPath,
-          this.sasjsConfig.allowInsecureRequests
+          this.sasjsConfig.httpsAgentOptions
         )
+      }
+    }
+
+    if (this.sasjsConfig.serverType === ServerType.Sasjs) {
+      if (this.sasJSApiClient) {
+        this.sasJSApiClient.setConfig(this.sasjsConfig.serverUrl)
+      } else {
+        this.sasJSApiClient = new SASjsApiClient(
+          this.sasjsConfig.serverUrl,
+          this.requestClient
+        )
+      }
     }
 
     this.fileUploader = new FileUploader(
-      this.sasjsConfig,
+      this.sasjsConfig.serverUrl,
+      this.sasjsConfig.serverType!,
       this.jobsPath,
       this.requestClient
     )
@@ -971,7 +1082,8 @@ export default class SASjs {
       this.sasjsConfig.serverUrl,
       this.sasjsConfig.serverType!,
       this.jobsPath,
-      this.sasjsConfig.allowInsecureRequests
+      this.requestClient,
+      this.sasjsConfig.httpsAgentOptions
     )
 
     this.computeJobExecutor = new ComputeJobExecutor(
@@ -1038,12 +1150,15 @@ export default class SASjs {
     })
   }
 
-  private isMethodSupported(method: string, serverType: string) {
-    if (this.sasjsConfig.serverType !== serverType) {
+  private isMethodSupported(method: string, serverTypes: ServerType[]) {
+    if (
+      !this.sasjsConfig.serverType ||
+      !serverTypes.includes(this.sasjsConfig.serverType)
+    ) {
       throw new Error(
-        `Method '${method}' is only supported on ${
-          serverType === ServerType.Sas9 ? 'SAS9' : 'SAS Viya'
-        } servers.`
+        `Method '${method}' is only supported on ${serverTypes.join(
+          ', '
+        )} servers.`
       )
     }
   }

src/SASjsApiClient.ts

@@ -0,0 +1,82 @@
+import { FolderMember, ServiceMember, ExecutionQuery } from './types'
+import { RequestClient } from './request/RequestClient'
+import { getAccessTokenForSasjs } from './auth/getAccessTokenForSasjs'
+import { refreshTokensForSasjs } from './auth/refreshTokensForSasjs'
+import { getAuthCodeForSasjs } from './auth/getAuthCodeForSasjs'
+
+export class SASjsApiClient {
+  constructor(
+    private serverUrl: string,
+    private requestClient: RequestClient
+  ) {}
+
+  public setConfig(serverUrl: string) {
+    if (serverUrl) this.serverUrl = serverUrl
+  }
+
+  public async deploy(members: [FolderMember, ServiceMember], appLoc: string) {
+    const { result } = await this.requestClient.post<{
+      status: string
+      message: string
+      example?: {}
+    }>(
+      'SASjsApi/drive/deploy',
+      { fileTree: members, appLoc: appLoc },
+      undefined
+    )
+
+    return Promise.resolve(result)
+  }
+
+  public async executeJob(query: ExecutionQuery) {
+    const { result } = await this.requestClient.post<{
+      status: string
+      message: string
+      log?: string
+      logPath?: string
+      error?: {}
+    }>('SASjsApi/stp/execute', query, undefined)
+
+    return Promise.resolve(result)
+  }
+
+  /**
+   * Exchanges the auth code for an access token for the given client.
+   * @param clientId - the client ID to authenticate with.
+   * @param authCode - the auth code received from the server.
+   */
+  public async getAccessToken(
+    clientId: string,
+    authCode: string
+  ): Promise<SASjsAuthResponse> {
+    return getAccessTokenForSasjs(this.requestClient, clientId, authCode)
+  }
+
+  /**
+   * Exchanges the refresh token for an access token.
+   * @param refreshToken - the refresh token received from the server.
+   */
+  public async refreshTokens(refreshToken: string): Promise<SASjsAuthResponse> {
+    return refreshTokensForSasjs(this.requestClient, refreshToken)
+  }
+
+  /**
+   * Performs a login authenticate and returns an auth code for the given client.
+   * @param username - a string representing the username.
+   * @param password - a string representing the password.
+   * @param clientId - the client ID to authenticate with.
+   */
+  public async getAuthCode(
+    username: string,
+    password: string,
+    clientId: string
+  ) {
+    return getAuthCodeForSasjs(this.requestClient, username, password, clientId)
+  }
+}
+
+// todo move to sasjs/utils
+export interface SASjsAuthResponse {
+  access_token: string
+  refresh_token: string
+}

src/SessionManager.ts

@@ -168,7 +168,7 @@ export class SessionManager {
     ) {
       if (stateLink) {
         if (this.debug && !this.printedSessionState.printed) {
-          logger.info('Polling session status...')
+          logger.info(`Polling: ${this.serverUrl + stateLink.href}`)
 
           this.printedSessionState.printed = true
         }

src/api/viya/pollJobState.ts

@@ -4,7 +4,7 @@ import { getTokens } from '../../auth/getTokens'
 import { RequestClient } from '../../request/RequestClient'
 import { JobStatePollError } from '../../types/errors'
 import { Link, WriteStream } from '../../types'
-import { isNode } from '../../utils'
+import { delay, isNode } from '../../utils'
 
 export async function pollJobState(
   requestClient: RequestClient,
@@ -206,10 +206,11 @@ const doPoll = async (
 
     pollCount++
 
+    const jobHref = postedJob.links.find((l: Link) => l.rel === 'self')!.href
+
     if (pollOptions?.streamLog) {
-      const jobUrl = postedJob.links.find((l: Link) => l.rel === 'self')
       const { result: job } = await requestClient.get<Job>(
-        jobUrl!.href,
+        jobHref,
         authConfig?.access_token
       )
 
@@ -231,7 +232,7 @@ const doPoll = async (
     }
 
     if (debug && printedState !== state) {
-      logger.info('Polling job status...')
+      logger.info(`Polling: ${requestClient.getBaseUrl() + jobHref}/state`)
       logger.info(`Current job state: ${state}`)
 
       printedState = state
@@ -246,5 +247,3 @@ const doPoll = async (
 
   return { state, pollCount }
 }
-
-const delay = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms))

src/api/viya/spec/pollJobState.spec.ts

@@ -9,7 +9,10 @@ import * as isNodeModule from '../../../utils/isNode'
 import { PollOptions } from '../../../types'
 import { WriteStream } from 'fs'
 
+const baseUrl = 'http://localhost'
 const requestClient = new (<jest.Mock<RequestClient>>RequestClient)()
+requestClient['httpClient'].defaults.baseURL = baseUrl
+
 const defaultPollOptions: PollOptions = {
   maxPollCount: 100,
   pollInterval: 500,
@@ -195,7 +198,7 @@ describe('pollJobState', () => {
     expect((process as any).logger.info).toHaveBeenCalledTimes(4)
     expect((process as any).logger.info).toHaveBeenNthCalledWith(
       1,
-      'Polling job status...'
+      `Polling: ${baseUrl}/job/state`
     )
     expect((process as any).logger.info).toHaveBeenNthCalledWith(
       2,
@@ -203,7 +206,7 @@ describe('pollJobState', () => {
     )
     expect((process as any).logger.info).toHaveBeenNthCalledWith(
       3,
-      'Polling job status...'
+      `Polling: ${baseUrl}/job/state`
     )
     expect((process as any).logger.info).toHaveBeenNthCalledWith(
       4,

src/auth/AuthManager.ts

@@ -1,11 +1,18 @@
 import { ServerType } from '@sasjs/utils/types'
 import { RequestClient } from '../request/RequestClient'
+import { LoginOptions, LoginResult } from '../types/Login'
 import { serialize } from '../utils'
+import { getAccessTokenForSasjs } from './getAccessTokenForSasjs'
+import { getAuthCodeForSasjs } from './getAuthCodeForSasjs'
+import { openWebPage } from './openWebPage'
+import { verifySas9Login } from './verifySas9Login'
+import { verifySasViyaLogin } from './verifySasViyaLogin'
 
 export class AuthManager {
   public userName = ''
   private loginUrl: string
   private logoutUrl: string
+  private redirectedLoginUrl = `/SASLogon/home`
   constructor(
     private serverUrl: string,
     private serverType: ServerType,
@@ -16,68 +23,175 @@ export class AuthManager {
     this.logoutUrl =
       this.serverType === ServerType.Sas9
         ? '/SASLogon/logout?'
-        : '/SASLogon/logout.do?'
+        : this.serverType === ServerType.SasViya
+        ? '/SASLogon/logout.do?'
+        : '/SASjsApi/auth/logout'
+  }
+
+  /**
+   * Opens Pop up window to SAS Login screen.
+   * And checks if user has finished login process.
+   */
+  public async redirectedLogIn({
+    onLoggedOut
+  }: LoginOptions): Promise<LoginResult> {
+    const { isLoggedIn: isLoggedInAlready, userName: currentSessionUsername } =
+      await this.fetchUserName()
+
+    if (isLoggedInAlready) {
+      await this.loginCallback()
+
+      return {
+        isLoggedIn: true,
+        userName: currentSessionUsername
+      }
+    }
+
+    const loginPopup = await openWebPage(
+      this.redirectedLoginUrl,
+      'SASLogon',
+      {
+        width: 500,
+        height: 600
+      },
+      onLoggedOut
+    )
+
+    if (!loginPopup) {
+      return { isLoggedIn: false, userName: '' }
+    }
+
+    const { isLoggedIn } =
+      this.serverType === ServerType.SasViya
+        ? await verifySasViyaLogin(loginPopup)
+        : await verifySas9Login(loginPopup)
+
+    loginPopup.close()
+
+    if (isLoggedIn) {
+      if (this.serverType === ServerType.Sas9) {
+        await this.performCASSecurityCheck()
+      }
+
+      const { userName } = await this.fetchUserName()
+
+      await this.loginCallback()
+
+      return { isLoggedIn: true, userName }
+    }
+
+    return { isLoggedIn: false, userName: '' }
+  }
+
+  /**
+   * Logs into the SAS server with the supplied credentials.
+   * @param userName - a string representing the username.
+   * @param password - a string representing the password.
+   * @param clientId - a string representing the client ID.
+   * @returns - a boolean `isLoggedin` and a string `username`
+   */
+  public async logInSasjs(
+    username: string,
+    password: string,
+    clientId: string
+  ): Promise<LoginResult> {
+    const isLoggedIn = await this.sendLoginRequestSasjs(
+      username,
+      password,
+      clientId
+    )
+      .then((res) => {
+        this.userName = username
+        this.requestClient.saveLocalStorageToken(
+          res.access_token,
+          res.refresh_token
+        )
+        return true
+      })
+      .catch(() => false)
+
+    return {
+      isLoggedIn,
+      userName: this.userName
+    }
   }
 
   /**
    * Logs into the SAS server with the supplied credentials.
    * @param username - a string representing the username.
    * @param password - a string representing the password.
+   * @returns - a boolean `isLoggedin` and a string `username`
    */
-  public async logIn(username: string, password: string) {
-    const loginParams: any = {
+  public async logIn(username: string, password: string): Promise<LoginResult> {
+    const loginParams = {
       _service: 'default',
       username,
       password
     }
 
-    this.userName = loginParams.username
+    let {
+      isLoggedIn: isLoggedInAlready,
+      loginForm,
+      userName: currentSessionUsername
+    } = await this.checkSession()
 
-    const { isLoggedIn, loginForm } = await this.checkSession()
+    if (isLoggedInAlready) {
+      if (currentSessionUsername === loginParams.username) {
+        await this.loginCallback()
 
-    if (isLoggedIn) {
-      await this.loginCallback()
-
-      return {
-        isLoggedIn,
-        userName: this.userName
+        this.userName = currentSessionUsername!
+        return {
+          isLoggedIn: true,
+          userName: this.userName
+        }
+      } else {
+        await this.logOut()
+        loginForm = await this.getNewLoginForm()
       }
-    }
+    } else this.userName = ''
 
     let loginResponse = await this.sendLoginRequest(loginForm, loginParams)
 
-    let loggedIn = isLogInSuccess(loginResponse)
+    let isLoggedIn = isLogInSuccess(loginResponse)
 
-    if (!loggedIn) {
+    if (!isLoggedIn) {
       if (isCredentialsVerifyError(loginResponse)) {
         const newLoginForm = await this.getLoginForm(loginResponse)
 
         loginResponse = await this.sendLoginRequest(newLoginForm, loginParams)
       }
 
-      const currentSession = await this.checkSession()
-      loggedIn = currentSession.isLoggedIn
+      const res = await this.checkSession()
+      isLoggedIn = res.isLoggedIn
+
+      if (isLoggedIn) this.userName = res.userName
+    } else {
+      this.userName = loginParams.username
     }
 
-    if (loggedIn) {
+    if (isLoggedIn) {
       if (this.serverType === ServerType.Sas9) {
-        const casAuthenticationUrl = `${this.serverUrl}/SASStoredProcess/j_spring_cas_security_check`
-
-        await this.requestClient.get<string>(
-          `/SASLogon/login?service=${casAuthenticationUrl}`,
-          undefined
-        )
+        await this.performCASSecurityCheck()
       }
 
       this.loginCallback()
-    }
+    } else this.userName = ''
 
     return {
-      isLoggedIn: !!loggedIn,
+      isLoggedIn,
       userName: this.userName
     }
   }
 
+  private async performCASSecurityCheck() {
+    const casAuthenticationUrl = `${this.serverUrl}/SASStoredProcess/j_spring_cas_security_check`
+
+    await this.requestClient.get<string>(
+      `/SASLogon/login?service=${casAuthenticationUrl}`,
+      undefined
+    )
+  }
+
   private async sendLoginRequest(
     loginForm: { [key: string]: any },
     loginParams: { [key: string]: any }
@@ -101,17 +215,70 @@ export class AuthManager {
     return loginResponse
   }
 
+  private async sendLoginRequestSasjs(
+    username: string,
+    password: string,
+    clientId: string
+  ) {
+    const authCode = await getAuthCodeForSasjs(
+      this.requestClient,
+      username,
+      password,
+      clientId
+    )
+    return getAccessTokenForSasjs(this.requestClient, clientId, authCode)
+  }
   /**
    * Checks whether a session is active, or login is required.
-   * @returns - a promise which resolves with an object containing two values - a boolean `isLoggedIn`, and a string `userName`.
+   * @returns - a promise which resolves with an object containing three values
+   *  - a boolean `isLoggedIn`
+   *  - a string `userName` and
+   *  - a form `loginForm` if not loggedin.
    */
-  public async checkSession() {
-    //For VIYA we will send request on API endpoint. Which is faster then pinging SASJobExecution.
-    //For SAS9 we will send request on SASStoredProcess
+  public async checkSession(): Promise<{
+    isLoggedIn: boolean
+    userName: string
+    loginForm?: any
+  }> {
+    const { isLoggedIn, userName } = await this.fetchUserName()
+    let loginForm = null
+
+    if (!isLoggedIn) {
+      //We will logout to make sure cookies are removed and login form is presented
+      //Residue can happen in case of session expiration
+      await this.logOut()
+
+      if (this.serverType !== ServerType.Sasjs)
+        loginForm = await this.getNewLoginForm()
+    }
+
+    return Promise.resolve({
+      isLoggedIn,
+      userName: userName.toLowerCase(),
+      loginForm
+    })
+  }
+
+  private async getNewLoginForm() {
+    const { result: formResponse } = await this.requestClient.get<string>(
+      this.loginUrl.replace('.do', ''),
+      undefined,
+      'text/plain'
+    )
+
+    return await this.getLoginForm(formResponse)
+  }
+
+  private async fetchUserName(): Promise<{
+    isLoggedIn: boolean
+    userName: string
+  }> {
     const url =
-      this.serverType === 'SASVIYA'
-        ? `${this.serverUrl}/identities`
-        : `${this.serverUrl}/SASStoredProcess`
+      this.serverType === ServerType.SasViya
+        ? `${this.serverUrl}/identities/users/@currentUser`
+        : this.serverType === ServerType.Sas9
+        ? `${this.serverUrl}/SASStoredProcess`
+        : `${this.serverUrl}/SASjsApi/session`
 
     const { result: loginResponse } = await this.requestClient
       .get<string>(url, undefined, 'text/plain')
@@ -120,26 +287,34 @@ export class AuthManager {
       })
 
     const isLoggedIn = loginResponse !== 'authErr'
-    let loginForm = null
+    const userName = isLoggedIn ? this.extractUserName(loginResponse) : ''
 
-    if (!isLoggedIn) {
-      //We will logout to make sure cookies are removed and login form is presented
-      this.logOut()
+    return { isLoggedIn, userName }
+  }
 
-      const { result: formResponse } = await this.requestClient.get<string>(
-        this.loginUrl.replace('.do', ''),
-        undefined,
-        'text/plain'
-      )
+  private extractUserName = (response: any): string => {
+    switch (this.serverType) {
+      case ServerType.SasViya:
+        return response?.id
 
-      loginForm = await this.getLoginForm(formResponse)
+      case ServerType.Sas9:
+        const matched = response?.match(/"title":"Log Off [0-1a-zA-Z ]*"/)
+        const username = matched?.[0].slice(17, -1)
+
+        if (!username.includes(' ')) return username
+
+        return username
+          .split(' ')
+          .map((name: string) => name.slice(0, 3).toLowerCase())
+          .join('')
+
+      case ServerType.Sasjs:
+        return response?.username
+
+      default:
+        console.error('Server Type not found in extractUserName function')
+        return ''
     }
-
-    return Promise.resolve({
-      isLoggedIn,
-      userName: this.userName,
-      loginForm
-    })
   }
 
   private getLoginForm(response: any) {
@@ -185,9 +360,21 @@ export class AuthManager {
 
   /**
    * Logs out of the configured SAS server.
+   * @param accessToken - an optional access token is required for SASjs server type.
    */
-  public logOut() {
+  public async logOut() {
+    if (this.serverType === ServerType.Sasjs) {
+      return this.requestClient
+        .delete(this.logoutUrl)
+        .catch(() => true)
+        .finally(() => {
+          this.requestClient.clearLocalStorageTokens()
+          return true
+        })
+    }
+
     this.requestClient.clearCsrfTokens()
+
     return this.requestClient.get(this.logoutUrl, undefined).then(() => true)
   }
 }