Add emscripten_async_wget2 with progress callback

Send request Post & Get with progress callback
Add sample HTTP using emscripten_async_wget2

1 files changed, 50 insertions, 0 deletions

diff --git a/src/library_browser.js b/src/library_browser.js
index 00ee158c..c18edf4a 100644
--- a/src/library_browser.js
+++ b/src/library_browser.js
@@ -385,6 +385,56 @@ mergeInto(LibraryManager.library, {
     );
   },
 
+  emscripten_async_wget2: function(url, file, request, param, arg, onload, onerror, onprogress) {
+    var _url = Pointer_stringify(url);
+    var _file = Pointer_stringify(file);
+    var _request = Pointer_stringify(request);
+    var _param = Pointer_stringify(param);
+    var index = _file.lastIndexOf('/');
+     
+    var http = new XMLHttpRequest();
+    http.open(_request, _url, true);
+	http.responseType = 'arraybuffer';
+    
+    // LOAD
+    http.onload = function(e) {
+    	if (http.status == 200) {
+	    	FS.createDataFile( _file.substr(0, index), _file.substr(index +1), new Uint8Array(http.response), true, true);
+	    	if (onload) FUNCTION_TABLE[onload](arg,file);
+        } else {
+        	if (onerror) FUNCTION_TABLE[onerror](arg,http.status);
+        }
+    };
+      
+    // ERROR
+    http.onerror = function(e) {
+		if (onerror) FUNCTION_TABLE[onerror](arg,http.status);
+	};
+	
+	// PROGRESS
+	http.onprogress = function(e) {
+	  	var percentComplete = (e.position / e.totalSize)*100;
+	  	if (onprogress) FUNCTION_TABLE[onprogress](arg,percentComplete);
+	};
+	  
+	try {  
+	if (http.channel instanceof Ci.nsIHttpChannel)
+    	http.channel.redirectionLimit = 0;
+	} catch (ex) { /* whatever */ }
+
+    if (_request == "POST") {
+		//Send the proper header information along with the request
+		http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
+		http.setRequestHeader("Content-length", _param.length);
+		http.setRequestHeader("Connection", "close");
+		
+		http.send(_param);
+    } else {
+        http.send(null);
+    }
+    
+  },
+  
   emscripten_async_prepare: function(file, onload, onerror) {
     var _file = Pointer_stringify(file);
     var data = FS.analyzePath(_file);