Include long polling header for retrieve messages, extend retrieveMessages timeout to 40 seconds, reduce default tmeout to 5 seconds, remove dev/prod poll time difference

js/modules/loki_message_api.js

@@ -7,6 +7,7 @@ const { rpc } = require('./loki_rpc');
 
 // Will be raised (to 3?) when we get more nodes
 const MINIMUM_SUCCESSFUL_REQUESTS = 2;
+const LOKI_LONGPOLL_HEADER = 'X-Loki-Long-Poll';
 
 class LokiMessageAPI {
   constructor({ snodeServerPort }) {
@@ -171,13 +172,20 @@ class LokiMessageAPI {
         pubKey: ourKey,
         lastHash: nodeData.lastHash || '',
       };
+      const options = {
+        timeout: 40000,
+        headers: {
+          [LOKI_LONGPOLL_HEADER]: true,
+        },
+      };
 
       try {
         const result = await rpc(
           `http://${nodeUrl}`,
           this.snodeServerPort,
           'retrieve',
-          params
+          params,
+          options
         );
 
         nodeComplete(nodeUrl);

js/modules/loki_rpc.js

@@ -8,7 +8,7 @@ const endpointBase = '/v1/storage_rpc';
 
 // A small wrapper around node-fetch which deserializes response
 const fetch = async (url, options = {}) => {
-  const timeout = options.timeout || 10000;
+  const timeout = options.timeout || 5000;
   const method = options.method || 'GET';
 
   const address = parse(url).hostname;

libtextsecure/http-resources.js

@@ -3,8 +3,7 @@
 // eslint-disable-next-line func-names
 (function() {
   let server;
-  const development = window.getEnvironment() !== 'production';
-  const pollTime = development ? 100 : 5000;
+  const POLL_TIME = 100;
 
   function stringToArrayBufferBase64(string) {
     return dcodeIO.ByteBuffer.wrap(string, 'base64').toArrayBuffer();
@@ -115,7 +114,7 @@
       callback(connected);
       setTimeout(() => {
         pollServer(callback);
-      }, pollTime);
+      }, POLL_TIME);
     };
 
     this.isConnected = function isConnected() {