Merge "1. Corrected Ip Protocol match field. 2. Added mask for Ipv6 Extension header...

[controller.git] / opendaylight / netconf / netconf-util / src / main / java / org / opendaylight / controller / netconf / util / messages / NetconfMessageFactory.java

diff --git a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageFactory.java b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageFactory.java
index 029d2ba7595c2a7fabb0f2ec74511fcf8b166184..891d40cf74fa520be681aa73109765424f5ab8e8 100644 (file)
--- a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageFactory.java
+++ b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/messages/NetconfMessageFactory.java
@@ -37,12 +37,6 @@ public final class NetconfMessageFactory implements ProtocolMessageFactory<Netco
 
     private static final Logger logger = LoggerFactory.getLogger(NetconfMessageFactory.class);
 
-    public static final byte[] endOfMessage = "]]>]]>".getBytes(Charsets.UTF_8);
-
-    public static final byte[] endOfChunk = "\n##\n".getBytes(Charsets.UTF_8);
-
-    public static final int MAX_CHUNK_SIZE = 1024; // Bytes
-
     private final Optional<String> clientId;
 
     public NetconfMessageFactory() {
@@ -54,25 +48,64 @@ public final class NetconfMessageFactory implements ProtocolMessageFactory<Netco
     }
 
     @Override
-    public List<NetconfMessage> parse(byte[] bytes) throws DeserializerException, DocumentedException {
-        String s = Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
-        logger.debug("Parsing message \n{}", s);
-        if (bytes[0] == '[') {
-            // yuma sends auth information in the first line. Ignore until ]\n
-            // is found.
-            int endOfAuthHeader = ByteArray.findByteSequence(bytes, new byte[] { ']', '\n' });
+    public NetconfMessage parse(byte[] bytes) throws DeserializerException, DocumentedException {
+        logMessage(bytes);
+
+        String additionalHeader = null;
+
+        if (startsWithAdditionalHeader(bytes)) {
+            // Auth information containing username, ip address... extracted for monitoring
+            int endOfAuthHeader = getAdditionalHeaderEndIndex(bytes);
             if (endOfAuthHeader > -1) {
+                byte[] additionalHeaderBytes = Arrays.copyOfRange(bytes, 0, endOfAuthHeader + 2);
+                additionalHeader = additionalHeaderToString(additionalHeaderBytes);
                 bytes = Arrays.copyOfRange(bytes, endOfAuthHeader + 2, bytes.length);
             }
         }
-        List<NetconfMessage> messages = Lists.newArrayList();
+        NetconfMessage message;
         try {
             Document doc = XmlUtil.readXmlToDocument(new ByteArrayInputStream(bytes));
-            messages.add(new NetconfMessage(doc));
+            message = new NetconfMessage(doc, additionalHeader);
         } catch (final SAXException | IOException | IllegalStateException e) {
             throw new NetconfDeserializerException("Could not parse message from " + new String(bytes), e);
         }
-        return messages;
+        return message;
+    }
+
+    private int getAdditionalHeaderEndIndex(byte[] bytes) {
+        for (String possibleEnd : Lists.newArrayList("]\n", "]\r\n")) {
+            int idx = ByteArray.findByteSequence(bytes, possibleEnd.getBytes(Charsets.UTF_8));
+
+            if (idx != -1) {
+                return idx;
+            }
+        }
+
+        return -1;
+    }
+
+    private boolean startsWithAdditionalHeader(byte[] bytes) {
+        List<String> possibleStarts = Lists.newArrayList("[", "\r\n[", "\n[");
+        for (String possibleStart : possibleStarts) {
+            int i = 0;
+            for (byte b : possibleStart.getBytes(Charsets.UTF_8)) {
+                if(bytes[i]!=b)
+                    break;
+
+                return true;
+            }
+        }
+
+        return false;
+    };
+
+    private void logMessage(byte[] bytes) {
+        String s = Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
+        logger.debug("Parsing message \n{}", s);
+    }
+
+    private String additionalHeaderToString(byte[] bytes) {
+        return Charsets.UTF_8.decode(ByteBuffer.wrap(bytes)).toString();
     }
 
     @Override
@@ -85,7 +118,7 @@ public final class NetconfMessageFactory implements ProtocolMessageFactory<Netco
         String content = xmlToString(netconfMessage.getDocument());
 
         logger.trace("Putting message \n{}", content);
-        byte[] b = new byte[msgBytes.remaining()];
+        byte[] b = new byte[msgBytes.limit()];
         msgBytes.get(b);
         return b;
     }