feat(sas9-support): add support for SAS9 via username/password login

src/request/Sas9RequestClient.ts

@@ -0,0 +1,117 @@
+import { AxiosRequestConfig } from 'axios'
+import axiosCookieJarSupport from 'axios-cookiejar-support'
+import * as tough from 'tough-cookie'
+import { prefixMessage } from '@sasjs/utils/error'
+import { RequestClient, throwIfError } from './RequestClient'
+
+export class Sas9RequestClient extends RequestClient {
+  constructor(baseUrl: string, allowInsecure = false) {
+    super(baseUrl, allowInsecure)
+    this.httpClient.defaults.maxRedirects = 0
+    this.httpClient.defaults.validateStatus = (status) =>
+      status >= 200 && status < 303
+
+    if (axiosCookieJarSupport) {
+      axiosCookieJarSupport(this.httpClient)
+      this.httpClient.defaults.jar = new tough.CookieJar()
+    }
+  }
+
+  public async login(username: string, password: string) {
+    const codeInjectorPath = `/User Folders/${username}/My Folder/sasjs/runner`
+    if (this.httpClient.defaults.jar) {
+      ;(this.httpClient.defaults.jar as tough.CookieJar).removeAllCookies()
+      await this.get(
+        `/SASStoredProcess/do?_program=${codeInjectorPath}&_username=${username}&_password=${password}`,
+        undefined,
+        'text/plain'
+      )
+    }
+  }
+
+  public async get<T>(
+    url: string,
+    accessToken: string | undefined,
+    contentType: string = 'application/json',
+    overrideHeaders: { [key: string]: string | number } = {},
+    debug: boolean = false
+  ): Promise<{ result: T; etag: string }> {
+    const headers = {
+      ...this.getHeaders(accessToken, contentType),
+      ...overrideHeaders
+    }
+
+    const requestConfig: AxiosRequestConfig = {
+      headers,
+      responseType: contentType === 'text/plain' ? 'text' : 'json',
+      withCredentials: true
+    }
+    if (contentType === 'text/plain') {
+      requestConfig.transformResponse = undefined
+    }
+
+    return this.httpClient
+      .get<T>(url, requestConfig)
+      .then((response) => {
+        if (response.status === 302) {
+          return this.get(
+            response.headers['location'],
+            accessToken,
+            contentType
+          )
+        }
+        throwIfError(response)
+        return this.parseResponse<T>(response)
+      })
+      .catch(async (e) => {
+        return await this.handleError(
+          e,
+          () =>
+            this.get<T>(url, accessToken, contentType, overrideHeaders).catch(
+              (err) => {
+                throw prefixMessage(
+                  err,
+                  'Error while executing handle error callback. '
+                )
+              }
+            ),
+          debug
+        ).catch((err) => {
+          throw prefixMessage(err, 'Error while handling error. ')
+        })
+      })
+  }
+
+  public post<T>(
+    url: string,
+    data: any,
+    accessToken: string | undefined,
+    contentType = 'application/json',
+    overrideHeaders: { [key: string]: string | number } = {}
+  ): Promise<{ result: T; etag: string }> {
+    const headers = {
+      ...this.getHeaders(accessToken, contentType),
+      ...overrideHeaders
+    }
+
+    return this.httpClient
+      .post<T>(url, data, { headers, withCredentials: true })
+      .then(async (response) => {
+        if (response.status === 302) {
+          return await this.get(
+            response.headers['location'],
+            undefined,
+            contentType,
+            overrideHeaders
+          )
+        }
+        throwIfError(response)
+        return this.parseResponse<T>(response)
+      })
+      .catch(async (e) => {
+        return await this.handleError(e, () =>
+          this.post<T>(url, data, accessToken, contentType, overrideHeaders)
+        )
+      })
+  }
+}