1 files changed, 82 insertions, 2 deletions
diff --git a/src/service/httpBackend.js b/src/service/httpBackend.js
index af3de970..28700940 100644
--- a/src/service/httpBackend.js
+++ b/src/service/httpBackend.js
@@ -1,6 +1,86 @@
+var XHR = window.XMLHttpRequest || function() {
+  try { return new ActiveXObject("Msxml2.XMLHTTP.6.0"); } catch (e1) {}
+  try { return new ActiveXObject("Msxml2.XMLHTTP.3.0"); } catch (e2) {}
+  try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e3) {}
+  throw new Error("This browser does not support XMLHttpRequest.");
+};
+
+
+/**
+ * @ngdoc object
+ * @name angular.module.ng.$httpBackend
+ * @requires $browser
+ * @requires $window
+ * @requires $document
+ *
+ * @description
+ */
 function $HttpBackendProvider() {
-  this.$get = ['$browser', function($browser) {
-    return $browser.xhr;
+  this.$get = ['$browser', '$window', '$document', function($browser, $window, $document) {
+    return createHttpBackend($browser, XHR, $browser.defer, $window, $document[0].body);
   }];
 }
 
+function createHttpBackend($browser, XHR, $browserDefer, $window, body) {
+  var idCounter = 0;
+
+  function completeRequest(callback, status, response) {
+    // normalize IE bug (http://bugs.jquery.com/ticket/1450)
+    callback(status == 1223 ? 204 : status, response);
+    $browser.$$completeOutstandingRequest(noop);
+  }
+
+  // TODO(vojta): fix the signature
+  return function(method, url, post, callback, headers, timeout) {
+    $browser.$$incOutstandingRequestCount();
+
+    if (lowercase(method) == 'jsonp') {
+      var callbackId = ('angular_' + Math.random() + '_' + (idCounter++)).replace(/\d\./, '');
+      $window[callbackId] = function(data) {
+        $window[callbackId].data = data;
+      };
+
+      var script = $browser.addJs(url.replace('JSON_CALLBACK', callbackId), null, function() {
+        if ($window[callbackId].data) {
+          completeRequest(callback, 200, $window[callbackId].data);
+        } else {
+          completeRequest(callback, -2);
+        }
+        delete $window[callbackId];
+        body.removeChild(script);
+      });
+    } else {
+      var xhr = new XHR();
+      xhr.open(method, url, true);
+      forEach(headers, function(value, key) {
+          if (value) xhr.setRequestHeader(key, value);
+      });
+
+      var status;
+      xhr.send(post || '');
+
+      // IE6, IE7 bug - does sync when serving from cache
+      if (xhr.readyState == 4) {
+        $browserDefer(function() {
+          completeRequest(callback, status || xhr.status, xhr.responseText);
+        }, 0);
+      } else {
+        xhr.onreadystatechange = function() {
+          if (xhr.readyState == 4) {
+            completeRequest(callback, status || xhr.status, xhr.responseText);
+          }
+        };
+      }
+
+      if (timeout > 0) {
+        $browserDefer(function() {
+          status = -1;
+          xhr.abort();
+        }, timeout);
+      }
+
+      return xhr;
+    }
+  };
+}
+