Always use http-agent for hooks and triggers (#4800)

src/Controllers/HooksController.js

@@ -19,13 +19,11 @@ export class HooksController {
   _applicationId:string;
   _webhookKey:string;
   database: any;
-  keepAlive: boolean;
 
-  constructor(applicationId:string, databaseController, webhookKey, keepAlive) {
+  constructor(applicationId:string, databaseController, webhookKey) {
     this._applicationId = applicationId;
     this._webhookKey = webhookKey;
     this.database = databaseController;
-    this.keepAlive = keepAlive;
   }
 
   load() {
@@ -93,7 +91,7 @@ export class HooksController {
   }
 
   addHookToTriggers(hook) {
-    var wrappedFunction = wrapToHTTPRequest(hook, this._webhookKey, this.keepAlive);
+    var wrappedFunction = wrapToHTTPRequest(hook, this._webhookKey);
     wrappedFunction.url = hook.url;
     if (hook.className) {
       triggers.addTrigger(hook.triggerName, hook.className, wrappedFunction, this._applicationId)
@@ -167,7 +165,7 @@ export class HooksController {
   }
 }
 
-function wrapToHTTPRequest(hook, key, keepAlive) {
+function wrapToHTTPRequest(hook, key) {
   return (req, res) => {
     const jsonBody = {};
     for (var i in req) {
@@ -188,10 +186,8 @@ function wrapToHTTPRequest(hook, key, keepAlive) {
       body: JSON.stringify(jsonBody),
     };
 
-    if (keepAlive) {
     const agent = hook.url.startsWith('https') ? HTTPAgents['https'] : HTTPAgents['http'];
     jsonRequest.agent = agent;
-    }
 
     if (key) {
       jsonRequest.headers['X-Parse-Webhook-Key'] = key;

src/Controllers/index.js

@@ -150,9 +150,8 @@ export function getHooksController(options: ParseServerOptions, databaseControll
   const {
     appId,
     webhookKey,
-    hookKeepAlive,
   } = options;
-  return new HooksController(appId, databaseController, webhookKey, hookKeepAlive);
+  return new HooksController(appId, databaseController, webhookKey);
 }
 
 interface PushControlling {

src/Options/Definitions.js

@@ -302,11 +302,6 @@ module.exports.ParseServerOptions = {
     "env": "PARSE_SERVER_LIVE_QUERY_SERVER_OPTIONS",
     "help": "Live query server configuration options (will start the liveQuery server)",
     "action": parsers.objectParser
-  },
-  "hookKeepAlive": {
-    "env": "PARSE_SERVER_HOOK_KEEP_ALIVE",
-    "help": "Keep hook HTTP connections alive",
-    "action": parsers.booleanParser
   }
 };
 module.exports.CustomPagesOptions = {

src/Options/index.js

@@ -131,8 +131,6 @@ export interface ParseServerOptions {
   startLiveQueryServer: ?boolean;
   /* Live query server configuration options (will start the liveQuery server) */
   liveQueryServerOptions: ?LiveQueryServerOptions;
-  /* Keep hook HTTP connections alive */
-  hookKeepAlive: ?boolean;
 
   __indexBuildCompletionCallbackForTests: ?()=>void;
 }