update node modules

node_modules/form-data/lib/form_data.js

@@ -25,7 +25,7 @@ util.inherits(FormData, CombinedStream);
  */
 function FormData(options) {
   if (!(this instanceof FormData)) {
-    return new FormData();
+    return new FormData(options);
   }
 
   this._overheadLength = 0;
@@ -230,7 +230,7 @@ FormData.prototype._getContentDisposition = function(value, options) {
     filename = path.basename(options.filename || value.name || value.path);
   } else if (value.readable && value.hasOwnProperty('httpVersion')) {
     // or try http response
-    filename = path.basename(value.client._httpMessage.path);
+    filename = path.basename(value.client._httpMessage.path || '');
   }
 
   if (filename) {
@@ -305,6 +305,10 @@ FormData.prototype.getHeaders = function(userHeaders) {
   return formHeaders;
 };
 
+FormData.prototype.setBoundary = function(boundary) {
+  this._boundary = boundary;
+};
+
 FormData.prototype.getBoundary = function() {
   if (!this._boundary) {
     this._generateBoundary();
@@ -313,6 +317,32 @@ FormData.prototype.getBoundary = function() {
   return this._boundary;
 };
 
+FormData.prototype.getBuffer = function() {
+  var dataBuffer = new Buffer.alloc( 0 );
+  var boundary = this.getBoundary();
+
+  // Create the form content. Add Line breaks to the end of data.
+  for (var i = 0, len = this._streams.length; i < len; i++) {
+    if (typeof this._streams[i] !== 'function') {
+
+      // Add content to the buffer.
+      if(Buffer.isBuffer(this._streams[i])) {
+        dataBuffer = Buffer.concat( [dataBuffer, this._streams[i]]);
+      }else {
+        dataBuffer = Buffer.concat( [dataBuffer, Buffer.from(this._streams[i])]);
+      }
+
+      // Add break after content.
+      if (typeof this._streams[i] !== 'string' || this._streams[i].substring( 2, boundary.length + 2 ) !== boundary) {
+        dataBuffer = Buffer.concat( [dataBuffer, Buffer.from(FormData.LINE_BREAK)] );
+      }
+    }
+  }
+
+  // Add the footer and return the Buffer object.
+  return Buffer.concat( [dataBuffer, Buffer.from(this._lastBoundary())] );
+};
+
 FormData.prototype._generateBoundary = function() {
   // This generates a 50 character boundary similar to those used by Firefox.
   // They are optimized for boyer-moore parsing.
@@ -436,8 +466,19 @@ FormData.prototype.submit = function(params, cb) {
 
     this.pipe(request);
     if (cb) {
-      request.on('error', cb);
-      request.on('response', cb.bind(this, null));
+      var onResponse;
+
+      var callback = function (error, responce) {
+        request.removeListener('error', callback);
+        request.removeListener('response', onResponse);
+
+        return cb.call(this, error, responce);
+      };
+
+      onResponse = callback.bind(this, null);
+
+      request.on('error', callback);
+      request.on('response', onResponse);
     }
   }.bind(this));