Fix the content-type http header validation for binary format, in commons.js and unmarshaller

Signed-off-by: Fabio José <fabiojose@gmail.com>

lib/bindings/http/commons.js

@@ -1,3 +1,16 @@
+const Constants = require("./constants.js");
+
+function sanityContentType(contentType) {
+  if(contentType) {
+    return Array.of(contentType)
+              .map(c => c.split(";"))
+              .map(c => c.shift())
+              .shift();
+  }
+
+  return contentType;
+}
+
 function sanityAndClone(headers) {
 
   var sanityHeaders = {};
@@ -8,9 +21,13 @@ function sanityAndClone(headers) {
       sanityHeaders[header.toLowerCase()] = headers[header];
     });
 
+  sanityHeaders[Constants.HEADER_CONTENT_TYPE] =
+    sanityContentType(sanityHeaders[Constants.HEADER_CONTENT_TYPE]);
+
   return sanityHeaders;
 }
 
 module.exports = {
-  sanityAndClone
+  sanityAndClone,
+  sanityContentType
 };

lib/bindings/http/unmarshaller_0_2.js

@@ -32,10 +32,7 @@ function validateArgs(payload, headers) {
 function resolveBindingName(payload, headers) {
 
   var contentType =
-    Array.of(headers[Constants.HEADER_CONTENT_TYPE])
+    Commons.sanityContentType(headers[Constants.HEADER_CONTENT_TYPE]);
-      .map(c => c.split(";"))
-      .map(c => c.shift())
-      .shift();
 
   if(contentType.startsWith(Constants.MIME_CE)){
     // Structured