/**
* Find the transaction corresponding to a given request.
*
* @param sipMessage request for which to retrieve the transaction.
* @param isServer search the server transaction table if true.
* @return the transaction object corresponding to the request or null if no such mapping exists.
*/
public SIPTransaction findTransaction(SIPMessage sipMessage, boolean isServer) {
SIPTransaction retval = null;
if (isServer) {
Via via = sipMessage.getTopmostVia();
if (via.getBranch() != null) {
String key = sipMessage.getTransactionId();
synchronized (this.serverTransactionTable) {
retval = (SIPTransaction) serverTransactionTable.get(key);
if (LogWriter.needsLogging) logMessage("looking for key " + key);
if (retval != null && retval.isMessagePartOfTransaction(sipMessage)) return retval;
}
}
// Need to scan the table for old style transactions (RFC 2543
// style)
synchronized (this.serverTransactions) {
Iterator<SIPServerTransaction> it = serverTransactions.iterator();
while (it.hasNext()) {
SIPServerTransaction sipServerTransaction = (SIPServerTransaction) it.next();
if (sipServerTransaction.isMessagePartOfTransaction(sipMessage))
return sipServerTransaction;
}
}
} else {
Via via = sipMessage.getTopmostVia();
if (via.getBranch() != null) {
String key = sipMessage.getTransactionId();
synchronized (this.clientTransactionTable) {
retval = (SIPTransaction) clientTransactionTable.get(key);
if (retval != null && retval.isMessagePartOfTransaction(sipMessage)) return retval;
}
}
// Need to scan the table for old style transactions (RFC 2543
// style)
synchronized (this.clientTransactions) {
Iterator<SIPClientTransaction> it = clientTransactions.iterator();
while (it.hasNext()) {
SIPClientTransaction clientTransaction = (SIPClientTransaction) it.next();
if (clientTransaction.isMessagePartOfTransaction(sipMessage)) return clientTransaction;
}
}
}
return null;
}
/**
* Logs the specified message and details to the packet logging service if enabled.
*
* @param message the message to log
* @param sender determines whether we are the origin of this message.
*/
private void logPacket(SIPMessage message, boolean sender) {
try {
PacketLoggingService packetLogging = SipActivator.getPacketLogging();
if (packetLogging == null
|| !packetLogging.isLoggingEnabled(PacketLoggingService.ProtocolName.SIP)
/* Via not present in CRLF packet on TCP - causes NPE */
|| message.getTopmostVia() == null) return;
String transport = message.getTopmostVia().getTransport();
boolean isTransportUDP = transport.equalsIgnoreCase("UDP");
byte[] srcAddr;
int srcPort;
byte[] dstAddr;
int dstPort;
// if addresses are not set use empty byte array with length
// equals to the other address or just empty
// byte array with length 4 (ipv4 0.0.0.0)
if (sender) {
if (!isTransportUDP) {
InetSocketAddress localAddress =
getLocalAddressForDestination(
message.getRemoteAddress(),
message.getRemotePort(),
message.getLocalAddress(),
transport);
srcPort = localAddress.getPort();
srcAddr = localAddress.getAddress().getAddress();
} else {
srcPort = message.getLocalPort();
if (message.getLocalAddress() != null) srcAddr = message.getLocalAddress().getAddress();
else if (message.getRemoteAddress() != null)
srcAddr = new byte[message.getRemoteAddress().getAddress().length];
else srcAddr = new byte[4];
}
dstPort = message.getRemotePort();
if (message.getRemoteAddress() != null) dstAddr = message.getRemoteAddress().getAddress();
else dstAddr = new byte[srcAddr.length];
} else {
if (!isTransportUDP) {
InetSocketAddress dstAddress =
getLocalAddressForDestination(
message.getRemoteAddress(),
message.getRemotePort(),
message.getLocalAddress(),
transport);
dstPort = dstAddress.getPort();
dstAddr = dstAddress.getAddress().getAddress();
} else {
dstPort = message.getLocalPort();
if (message.getLocalAddress() != null) dstAddr = message.getLocalAddress().getAddress();
else if (message.getRemoteAddress() != null)
dstAddr = new byte[message.getRemoteAddress().getAddress().length];
else dstAddr = new byte[4];
}
srcPort = message.getRemotePort();
if (message.getRemoteAddress() != null) srcAddr = message.getRemoteAddress().getAddress();
else srcAddr = new byte[dstAddr.length];
}
byte[] msg = null;
if (message instanceof SIPRequest) {
SIPRequest req = (SIPRequest) message;
if (req.getMethod().equals(SIPRequest.MESSAGE)
&& message.getContentTypeHeader() != null
&& message.getContentTypeHeader().getContentType().equalsIgnoreCase("text")) {
int len = req.getContentLength().getContentLength();
if (len > 0) {
SIPRequest newReq = (SIPRequest) req.clone();
byte[] newContent = new byte[len];
Arrays.fill(newContent, (byte) '.');
newReq.setMessageContent(newContent);
msg = newReq.toString().getBytes("UTF-8");
}
}
}
if (msg == null) {
msg = message.toString().getBytes("UTF-8");
}
packetLogging.logPacket(
PacketLoggingService.ProtocolName.SIP,
srcAddr,
srcPort,
dstAddr,
dstPort,
isTransportUDP
? PacketLoggingService.TransportName.UDP
: PacketLoggingService.TransportName.TCP,
sender,
msg);
} catch (Throwable e) {
logger.error("Cannot obtain message body", e);
}
}