add nodejs support

client/javascript/http.js

@@ -193,7 +193,7 @@ class HTTPSession extends CurlSession {
     if (params.referrer) {
       params.headers["Referer"] = params.referrer;
     }
-    if (!params.headers["User-Agent"]) {
+    if (!params.headers["User-Agent"] && typeof navigator === "object") {
       params.headers["User-Agent"] = navigator.userAgent;
     }
     if (body && !params.headers["Content-Type"]) {

client/javascript/main.js

@@ -5,7 +5,7 @@ Licensed under the GNU LGPL v3. See https://github.com/ading2210/libcurl.js
 */
 
 //everything is wrapped in a function to prevent emscripten from polluting the global scope
-const libcurl = (function() {
+export const libcurl = (function() {
 
 //emscripten compiled code is inserted here
 /* __emscripten_output__ */
@@ -21,6 +21,8 @@ var main_session = null;
 const libcurl_version = "__library_version__";
 const wisp_version = "__wisp_version__";
 
+const WSImpl = (typeof process !== "undefined" && typeof WebSocket === "undefined") ? require("ws").WebSocket : WebSocket;
+
 function check_loaded(check_websocket) {
   if (!wasm_ready) {
     throw new Error("wasm not loaded yet, please call libcurl.load_wasm first");
@@ -149,4 +151,6 @@ api = {
 
 return api;
 
-})()
+})()
+
+export default libcurl;

client/javascript/session.js

@@ -186,7 +186,7 @@ class CurlSession {
       try {
         stream_controller.close();
       }
-      catch {}
+      catch (e) {}
       end_callback(error);
     }