feat(powershell): add powershell webrequest target (Kong#127)

Closes Kong#105

Author: darrenjennings

src/targets/index.js

@@ -11,6 +11,7 @@ module.exports = {
   objc: require('./objc'),
   ocaml: require('./ocaml'),
   php: require('./php'),
+  powershell: require('./powershell'),
   python: require('./python'),
   ruby: require('./ruby'),
   shell: require('./shell'),

src/targets/powershell/index.js

@@ -0,0 +1,12 @@
+'use strict'
+
+module.exports = {
+  info: {
+    key: 'powershell',
+    title: 'Powershell',
+    extname: '.ps1',
+    default: 'webrequest'
+  },
+
+  webrequest: require('./webrequest')
+}

src/targets/powershell/webrequest.js

@@ -0,0 +1,59 @@
+'use strict'
+
+var CodeBuilder = require('../../helpers/code-builder')
+
+module.exports = function (source, options) {
+  var code = new CodeBuilder()
+  var methods = [ 'GET', 'POST', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS' ]
+
+  if (methods.indexOf(source.method.toUpperCase()) === -1) {
+    return 'Method not supported'
+  }
+
+  var commandOptions = []
+
+  // Add headers, including the cookies
+  var headers = Object.keys(source.headersObj)
+
+  // construct headers
+  if (headers.length) {
+    code.push('$headers=@{}')
+    headers.forEach(function (key) {
+      if (key !== 'connection') { // Not allowed
+        code.push('$headers.Add("%s", "%s")', key, source.headersObj[key])
+      }
+    })
+    commandOptions.push('-Headers $headers')
+  }
+
+  // construct cookies
+  if (source.cookies.length) {
+    code.push('$session = New-Object Microsoft.PowerShell.Commands.WebRequestSession')
+
+    source.cookies.forEach(function (cookie) {
+      code.push('$cookie = New-Object System.Net.Cookie')
+
+      code.push("$cookie.Name = '%s'", cookie.name)
+      code.push("$cookie.Value = '%s'", cookie.value)
+      code.push("$cookie.Domain = '%s'", source.uriObj.host)
+
+      code.push('$session.Cookies.Add($cookie)')
+    })
+    commandOptions.push('-WebSession $session')
+  }
+
+  if (source.postData.text) {
+    commandOptions.push("-ContentType '" + source.allHeaders['content-type'] + "'")
+    commandOptions.push("-Body '" + source.postData.text + "'")
+  }
+
+  code.push("$response = Invoke-WebRequest -Uri '%s' -Method %s %s", source.fullUrl, source.method, commandOptions.join(' '))
+  return code.join()
+}
+
+module.exports.info = {
+  key: 'webrequest',
+  title: 'Invoke-WebRequest',
+  link: 'https://docs.microsoft.com/en-us/powershell/module/Microsoft.PowerShell.Utility/Invoke-WebRequest',
+  description: 'Powershell Invoke-WebRequest client'
+}

test/targets/powershell/webrequest.js

@@ -0,0 +1,5 @@
+'use strict'
+
+require('should')
+
+module.exports = function (snippet, fixtures) {}