fix global leaks and copy-paste errors

- TCompactProtocol.prototype.writeBool not referencing `booleanField_`
  on `this` correctly. Also using `NULL` instead of `null`.

- TCompactProtocol.prototype.writeVarint64 had a typo for TProtocolException

- TCompactProtocol.prototype.readMapBegin had a typo between `kvtype` and
 `kvType`

- createMultiplexServer leaked a global var `processStatus`

- TFramedTransport had a line that was accidently copy pasted, leading
  to a global leak of `frameLeft`. (I created the patch the introduced
  this copy paste error in Thrift-1353, so I can confirm it was
  a mistake).

- createWebServer tried to check a non-existent var `route` and leaked
  a global `result`

Signed-off-by: Roger Meier <roger@apache.org>

lib/nodejs/lib/thrift/protocol.js

@@ -652,14 +652,14 @@ TCompactProtocol.prototype.writeSetEnd = function() {
 };
 
 TCompactProtocol.prototype.writeBool = function(value) {
-  if (booleanField_.name != NULL) {
+  if (this.booleanField_.name !== null) {
     // we haven't written the field header yet
-    this.writeFieldBeginInternal(booleanField_.name,
-                                 booleanField_.fieldType,
-                                 booleanField_.fieldId,
+    this.writeFieldBeginInternal(this.booleanField_.name,
+                                 this.booleanField_.fieldType,
+                                 this.booleanField_.fieldId,
                                  (value ? TCompactProtocol.Types.CT_BOOLEAN_TRUE
                                           : TCompactProtocol.Types.CT_BOOLEAN_FALSE));
-    booleanField_.name = NULL;
+    this.booleanField_.name = null;
   } else {
     // we're not part of a field, so just write the value
     this.writeByte((value ? TCompactProtocol.Types.CT_BOOLEAN_TRUE
@@ -765,7 +765,7 @@ TCompactProtocol.prototype.writeVarint64 = function(n) {
     n = new Int64(n);
   }
   if (! (n instanceof Int64)) {
-    throw new TProtocolError(INVALID_DATA, "Expected Int64 or Number, found: " + n);
+    throw new TProtocolException(INVALID_DATA, "Expected Int64 or Number, found: " + n);
   }
   
   var buf = new Buffer(10);
@@ -903,7 +903,7 @@ TCompactProtocol.prototype.readMapBegin = function() {
     throw new TProtocolException(NEGATIVE_SIZE, "Negative map size");
   } 
 
-  var kvtype = 0;
+  var kvType = 0;
   if (msize !== 0) {
     kvType = this.trans.readByte();
   }

lib/nodejs/lib/thrift/server.js

@@ -52,7 +52,7 @@ exports.createMultiplexServer = function(processor, options) {
 
       try {
         do {
-          processStatus = processor.process(input, output);
+          processor.process(input, output);
           transportWithData.commitPosition();
         } while (true);
       } catch (err) {

lib/nodejs/lib/thrift/transport.js

@@ -157,7 +157,6 @@ TFramedTransport.prototype = {
       // TODO: optimize this better, allocate one buffer instead of both:
       var msg = new Buffer(out.length + 4);
       binary.writeI32(msg, out.length);
-      frameLeft = binary.readI32(this.inBuf, 0);
       out.copy(msg, 4, 0, out.length);
       this.onFlush(msg);
     }

lib/nodejs/lib/thrift/web_server.js

@@ -506,10 +506,8 @@ exports.createWebServer = function(options) {
     try {
       svc = services[Object.keys(services)[0]];
     } catch(e) {
-      if (!route) {
-        socket.write("HTTP/1.1 403 No Apache Thrift Service availible\r\n\r\n");
-        return;
-      }
+      socket.write("HTTP/1.1 403 No Apache Thrift Service availible\r\n\r\n");
+      return;
     }
     //Perform upgrade
     var hash = crypto.createHash("sha1");
@@ -524,7 +522,7 @@ exports.createWebServer = function(options) {
     socket.on('data', function(frame) {
       try {
         while (frame) {
-          result = wsFrame.decode(frame);
+          var result = wsFrame.decode(frame);
           //Prepend any existing decoded data
           if (data) {
             if (result.data) {