feat: set response headers provded by SAS Code execution

api/src/utils/extractHeaders.ts

@@ -0,0 +1,25 @@
+const headerUtils = require('http-headers-validation')
+
+export interface HTTPHeaders {
+  [key: string]: string | undefined
+}
+
+export const extractHeaders = (content: string): HTTPHeaders => {
+  const headersObj: HTTPHeaders = {}
+  const headersArr = content
+    .split('\n')
+    .map((line) => line.trim())
+    .filter((line) => !!line)
+
+  headersArr.forEach((headerStr) => {
+    const [key, value] = headerStr.split(':').map((data) => data.trim())
+
+    if (value && headerUtils.validateHeader(key, value)) {
+      headersObj[key] = value
+    } else {
+      delete headersObj[key]
+    }
+  })
+
+  return headersObj
+}

api/src/utils/getCertificates.ts

@@ -7,6 +7,9 @@ export const getCertificates = async () => {
   const keyPath = PRIVATE_KEY ?? (await getFileInput('Private Key (PEM)'))
   const certPath = FULL_CHAIN ?? (await getFileInput('Full Chain (PEM)'))
 
+  console.log('keyPath: ', keyPath)
+  console.log('certPath: ', certPath)
+
   const key = await readFile(keyPath)
   const cert = await readFile(certPath)
 

api/src/utils/index.ts

@@ -1,4 +1,5 @@
 export * from './connectDB'
+export * from './extractHeaders'
 export * from './file'
 export * from './generateAccessToken'
 export * from './generateAuthCode'

api/src/utils/specs/extractHeaders.spec.ts

@@ -0,0 +1,40 @@
+import { extractHeaders } from '..'
+
+describe('extractHeaders', () => {
+  it('should return valid http headers', () => {
+    const headers = extractHeaders(`
+      Content-type: application/csv
+      Cache-Control: public, max-age=2000
+      Content-type: application/text
+      Cache-Control: public, max-age=1500
+      Content-type: application/zip
+      Cache-Control: public, max-age=1000
+    `)
+
+    expect(headers).toEqual({
+      'Content-type': 'application/zip',
+      'Cache-Control': 'public, max-age=1000'
+    })
+  })
+
+  it('should not return http headers if last occurrence is blank', () => {
+    const headers = extractHeaders(`
+      Content-type: application/csv
+      Cache-Control: public, max-age=1000
+      Content-type: application/text
+      Content-type:    
+    `)
+
+    expect(headers).toEqual({ 'Cache-Control': 'public, max-age=1000' })
+  })
+
+  it('should return only valid http headers', () => {
+    const headers = extractHeaders(`
+      Content-type[]: application/csv
+      Content//-type: application/text
+      Content()-type: application/zip
+    `)
+
+    expect(headers).toEqual({})
+  })
+})