Parse custom text header and ignore it.

Some MMS carrier append own custom header as text into PduData. We should parse it and ignore it at the moment.

Change-Id: I4d6cf20f5cf99172ebbe310ab18101316eb04c77

Author: takuo

core/java/com/google/android/mms/pdu/PduParser.java

@@ -200,7 +200,18 @@ protected PduHeaders parseHeaders(ByteArrayInputStream pduDataStream){
         PduHeaders headers = new PduHeaders();
 
         while (keepParsing && (pduDataStream.available() > 0)) {
+            pduDataStream.mark(1);
             int headerField = extractByteValue(pduDataStream);
+            /* parse custom text header */
+            if ((headerField >= TEXT_MIN) && (headerField <= TEXT_MAX)) {
+                pduDataStream.reset();
+                byte [] bVal = parseWapString(pduDataStream, TYPE_TEXT_STRING);
+                if (LOCAL_LOGV) {
+                    Log.v(LOG_TAG, "TextHeader: " + new String(bVal));
+                }
+                /* we should ignore it at the moment */
+                continue;
+            }
             switch (headerField) {
                 case PduHeaders.MESSAGE_TYPE:
                 {