/**
* Creates a default SIPResponse message for this request. Note You must add the necessary tags to
* outgoing responses if need be. For efficiency, this method does not clone the incoming request.
* If you want to modify the outgoing response, be sure to clone the incoming request as the
* headers are shared and any modification to the headers of the outgoing response will result in
* a modification of the incoming request. Tag fields are just copied from the incoming request.
* Contact headers are removed from the incoming request. Added by Jeff Keyser. Route headers are
* not added to the response.
*
* @param statusCode Status code for the response.
* @param reasonPhrase Reason phrase for this response.
* @return A SIPResponse with the status and reason supplied, and a copy of all the original
* headers from this request except the ones that are not supposed to be part of the response
* .
*/
public SIPResponse createResponse(int statusCode, String reasonPhrase) {
SIPResponse newResponse;
Iterator headerIterator;
SIPHeader nextHeader;
newResponse = new SIPResponse();
try {
newResponse.setStatusCode(statusCode);
} catch (ParseException ex) {
throw new IllegalArgumentException("Bad code " + statusCode);
}
if (reasonPhrase != null) newResponse.setReasonPhrase(reasonPhrase);
else newResponse.setReasonPhrase(SIPResponse.getReasonPhrase(statusCode));
headerIterator = getHeaders();
while (headerIterator.hasNext()) {
nextHeader = (SIPHeader) headerIterator.next();
if (nextHeader instanceof From
|| nextHeader instanceof To
|| nextHeader instanceof ViaList
|| nextHeader instanceof CallID
|| (nextHeader instanceof RecordRouteList && mustCopyRR(statusCode))
|| nextHeader instanceof CSeq
// We just copy TimeStamp for all headers (not just 100).
|| nextHeader instanceof TimeStamp) {
try {
newResponse.attachHeader((SIPHeader) nextHeader.clone(), false);
} catch (SIPDuplicateHeaderException e) {
e.printStackTrace();
}
}
}
if (MessageFactoryImpl.getDefaultServerHeader() != null) {
newResponse.setHeader(MessageFactoryImpl.getDefaultServerHeader());
}
if (newResponse.getStatusCode() == 100) {
// Trying is never supposed to have the tag parameter set.
newResponse.getTo().removeParameter("tag");
}
ServerHeader server = MessageFactoryImpl.getDefaultServerHeader();
if (server != null) {
newResponse.setHeader(server);
}
return newResponse;
}
/**
* Handles a new SIP response. It finds a client transaction to handle this message. If none
* exists, it sends the message directly to the superclass.
*
* @param responseReceived Response to handle.
* @param responseMessageChannel Channel that received message.
* @return A client transaction.
*/
protected ServerResponseInterface newSIPServerResponse(
SIPResponse responseReceived, MessageChannel responseMessageChannel) {
// System.out.println("response = " + responseReceived.encode());
// Iterator through all client transactions
Iterator<SIPClientTransaction> transactionIterator;
// Next transaction in the set
SIPClientTransaction nextTransaction;
// Transaction to handle this request
SIPClientTransaction currentTransaction;
String key = responseReceived.getTransactionId();
currentTransaction = (SIPClientTransaction) clientTransactionTable.get(key);
if (currentTransaction == null
|| !currentTransaction.isMessagePartOfTransaction(responseReceived)) {
// Loop through all server transactions
synchronized (clientTransactions) {
transactionIterator = clientTransactions.iterator();
currentTransaction = null;
while (transactionIterator.hasNext() && currentTransaction == null) {
nextTransaction = (SIPClientTransaction) transactionIterator.next();
// If this transaction should handle this request,
if (nextTransaction.isMessagePartOfTransaction(responseReceived)) {
// Mark this transaction as the one to
// handle this message
currentTransaction = nextTransaction;
}
}
}
// If no transaction exists to handle this message,
if (currentTransaction == null) {
// Pass the message directly to the TU
return super.newSIPServerResponse(responseReceived, responseMessageChannel);
}
}
// Set ths transaction's encapsulated response interface
// from the superclass
currentTransaction.setResponseInterface(
super.newSIPServerResponse(responseReceived, currentTransaction));
return currentTransaction;
}
/**
* Creates a default SIPResponse message for this request. Note You must add the necessary tags to
* outgoing responses if need be. For efficiency, this method does not clone the incoming request.
* If you want to modify the outgoing response, be sure to clone the incoming request as the
* headers are shared and any modification to the headers of the outgoing response will result in
* a modification of the incoming request. Tag fields are just copied from the incoming request.
* Contact headers are removed from the incoming request. Added by Jeff Keyser.
*
* @param statusCode Status code for the response. Reason phrase is generated.
* @return A SIPResponse with the status and reason supplied, and a copy of all the original
* headers from this request.
*/
public SIPResponse createResponse(int statusCode) {
String reasonPhrase = SIPResponse.getReasonPhrase(statusCode);
return this.createResponse(statusCode, reasonPhrase);
}
/**
* Gets invoked by the parser as a callback on successful message parsing (i.e. no parser errors).
*
* @param sipMessage Mesage to process (this calls the application for processing the message).
*/
public void processMessage(SIPMessage sipMessage) throws Exception {
try {
if (sipMessage.getFrom() == null
|| // sipMessage.getFrom().getTag() == null ||
sipMessage.getTo() == null
|| sipMessage.getCallId() == null
|| sipMessage.getCSeq() == null
|| sipMessage.getViaHeaders() == null) {
String badmsg = sipMessage.encode();
if (LogWriter.needsLogging) {
stack.logWriter.logMessage("bad message " + badmsg);
stack.logWriter.logMessage(">>> Dropped Bad Msg");
}
stack.logBadMessage(badmsg);
return;
}
ViaList viaList = sipMessage.getViaHeaders();
// For a request
// first via header tells where the message is coming from.
// For response, this has already been recorded in the outgoing
// message.
if (sipMessage instanceof SIPRequest) {
Via v = (Via) viaList.first();
if (v.hasPort()) {
this.peerPort = v.getPort();
} else this.peerPort = 5061;
this.peerProtocol = v.getTransport();
try {
this.peerAddress = mySock.getInetAddress();
// Check to see if the received parameter matches
// the peer address and tag it appropriately.
// Bug fix by [email protected]
// Should record host address not host name
// bug fix by Joost Yervante Damand
if (!v.getSentBy().getInetAddress().equals(this.peerAddress)) {
v.setParameter(Via.RECEIVED, this.peerAddress.getHostAddress());
// @@@ hagai
v.setParameter(Via.RPORT, new Integer(this.peerPort).toString());
}
} catch (java.net.UnknownHostException ex) {
// Could not resolve the sender address.
if (LogWriter.needsLogging) {
stack.logWriter.logMessage("Rejecting message -- could not resolve Via Address");
}
return;
} catch (java.text.ParseException ex) {
InternalErrorHandler.handleException(ex);
}
// Use this for outgoing messages as well.
if (!this.isCached) {
((TLSMessageProcessor) this.messageProcessor).cacheMessageChannel(this);
this.isCached = true;
String key = IOHandler.makeKey(mySock.getInetAddress(), this.peerPort);
stack.ioHandler.putSocket(key, mySock);
}
}
// Foreach part of the request header, fetch it and process it
long receptionTime = System.currentTimeMillis();
//
if (sipMessage instanceof SIPRequest) {
// This is a request - process the request.
SIPRequest sipRequest = (SIPRequest) sipMessage;
// Create a new sever side request processor for this
// message and let it handle the rest.
if (LogWriter.needsLogging) {
stack.logWriter.logMessage("----Processing Message---");
}
// Check for reasonable size - reject message
// if it is too long.
if (stack.getMaxMessageSize() > 0
&& sipRequest.getSize()
+ (sipRequest.getContentLength() == null
? 0
: sipRequest.getContentLength().getContentLength())
> stack.getMaxMessageSize()) {
SIPResponse sipResponse = sipRequest.createResponse(SIPResponse.MESSAGE_TOO_LARGE);
byte[] resp = sipResponse.encodeAsBytes();
this.sendMessage(resp, false);
throw new Exception("Message size exceeded");
}
ServerRequestInterface sipServerRequest = stack.newSIPServerRequest(sipRequest, this);
sipServerRequest.processRequest(sipRequest, this);
if (this.stack.serverLog.needsLogging(ServerLog.TRACE_MESSAGES)) {
if (sipServerRequest.getProcessingInfo() == null) {
stack.serverLog.logMessage(
sipMessage,
sipRequest.getViaHost() + ":" + sipRequest.getViaPort(),
stack.getHostAddress() + ":" + stack.getPort(this.getTransport()),
false,
receptionTime);
} else {
this.stack.serverLog.logMessage(
sipMessage,
sipRequest.getViaHost() + ":" + sipRequest.getViaPort(),
stack.getHostAddress() + ":" + stack.getPort(this.getTransport()),
sipServerRequest.getProcessingInfo(),
false,
receptionTime);
}
}
} else {
SIPResponse sipResponse = (SIPResponse) sipMessage;
// This is a response message - process it.
// Check the size of the response.
// If it is too large dump it silently.
if (stack.getMaxMessageSize() > 0
&& sipResponse.getSize()
+ (sipResponse.getContentLength() == null
? 0
: sipResponse.getContentLength().getContentLength())
> stack.getMaxMessageSize()) {
if (LogWriter.needsLogging) this.stack.logWriter.logMessage("Message size exceeded");
return;
}
ServerResponseInterface sipServerResponse = stack.newSIPServerResponse(sipResponse, this);
sipServerResponse.processResponse(sipResponse, this);
}
} finally {
}
}
/**
* Actually proces the parsed message.
*
* @param sipMessage
*/
public void processMessage(SIPMessage sipMessage) {
if (sipMessage instanceof SIPRequest) {
SIPRequest sipRequest = (SIPRequest) sipMessage;
// This is a request - process it.
// So far so good -- we will commit this message if
// all processing is OK.
if (sipStack.logWriter.isLoggingEnabled(ServerLog.TRACE_MESSAGES)) {
this.sipStack.serverLog.logMessage(
sipMessage,
this.getPeerHostPort().toString(),
this.getHost() + ":" + this.myPort,
false,
receptionTime);
}
ServerRequestInterface sipServerRequest = sipStack.newSIPServerRequest(sipRequest, this);
// Drop it if there is no request returned
if (sipServerRequest == null) {
if (sipStack.isLoggingEnabled()) {
this.sipStack.logWriter.logWarning("Null request interface returned -- dropping request");
}
return;
}
if (sipStack.isLoggingEnabled())
this.sipStack.logWriter.logDebug(
"About to process " + sipRequest.getFirstLine() + "/" + sipServerRequest);
try {
sipServerRequest.processRequest(sipRequest, this);
} finally {
if (sipServerRequest instanceof SIPTransaction) {
SIPServerTransaction sipServerTx = (SIPServerTransaction) sipServerRequest;
if (!sipServerTx.passToListener()) {
((SIPTransaction) sipServerRequest).releaseSem();
}
}
}
if (sipStack.isLoggingEnabled())
this.sipStack.logWriter.logDebug(
"Done processing " + sipRequest.getFirstLine() + "/" + sipServerRequest);
// So far so good -- we will commit this message if
// all processing is OK.
} else {
// Handle a SIP Reply message.
SIPResponse sipResponse = (SIPResponse) sipMessage;
try {
sipResponse.checkHeaders();
} catch (ParseException ex) {
if (sipStack.isLoggingEnabled())
sipStack.logWriter.logError(
"Dropping Badly formatted response message >>> " + sipResponse);
return;
}
ServerResponseInterface sipServerResponse = sipStack.newSIPServerResponse(sipResponse, this);
if (sipServerResponse != null) {
try {
if (sipServerResponse instanceof SIPClientTransaction
&& !((SIPClientTransaction) sipServerResponse).checkFromTag(sipResponse)) {
if (sipStack.isLoggingEnabled())
sipStack.logWriter.logError(
"Dropping response message with invalid tag >>> " + sipResponse);
return;
}
sipServerResponse.processResponse(sipResponse, this);
} finally {
if (sipServerResponse instanceof SIPTransaction
&& !((SIPTransaction) sipServerResponse).passToListener())
((SIPTransaction) sipServerResponse).releaseSem();
}
// Normal processing of message.
} else {
if (sipStack.isLoggingEnabled()) {
this.sipStack.logWriter.logDebug("null sipServerResponse!");
}
}
}
}
