Esempio n. 1
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 /**
  * Add a new server transaction to the set of existing transactions. Add it to the top of the list
  * so an incoming ack has less work to do in order to find the transaction.
  *
  * @param serverTransaction -- server transaction to add to the set.
  */
 public void addTransaction(SIPServerTransaction serverTransaction) throws IOException {
   if (LogWriter.needsLogging) logWriter.logMessage("added transaction " + serverTransaction);
   synchronized (serverTransactions) {
     this.serverTransactions.add(0, serverTransaction);
     serverTransaction.map();
   }
   addTransactionHash(serverTransaction);
   serverTransaction.startTransactionTimer();
 }
Esempio n. 2
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  /**
   * 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;
  }
Esempio n. 3
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  public SIPServerTransaction findPendingTransaction(SIPRequest requestReceived) {
    SIPServerTransaction currentTransaction;
    Iterator<SIPServerTransaction> transactionIterator;
    synchronized (pendingTransactions) {
      transactionIterator = pendingTransactions.iterator();
      currentTransaction = null;
      while (transactionIterator.hasNext() && currentTransaction == null) {

        SIPServerTransaction nextTransaction = (SIPServerTransaction) transactionIterator.next();

        // If this transaction should handle this request,
        if (nextTransaction.isMessagePartOfTransaction(requestReceived)) {
          // Mark this transaction as the one
          // to handle this message
          currentTransaction = nextTransaction;
        }
      }
    }
    return currentTransaction;
  }
Esempio n. 4
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  /**
   * Get the transaction to cancel. Search the server transaction table for a transaction that
   * matches the given transaction.
   */
  public SIPTransaction findCancelTransaction(SIPRequest cancelRequest, boolean isServer) {

    if (LogWriter.needsLogging) {
      logWriter.logMessage(
          "findCancelTransaction request= \n"
              + cancelRequest
              + "\nfindCancelRequest isServer="
              + isServer);
    }

    if (isServer) {
      synchronized (this.serverTransactions) {
        Iterator<SIPServerTransaction> li = this.serverTransactions.iterator();
        while (li.hasNext()) {
          SIPTransaction transaction = (SIPTransaction) li.next();
          // SIPRequest sipRequest = (SIPRequest) (transaction
          //		.getRequest());

          SIPServerTransaction sipServerTransaction = (SIPServerTransaction) transaction;
          if (sipServerTransaction.doesCancelMatchTransaction(cancelRequest))
            return sipServerTransaction;
        }
      }
    } else {
      synchronized (this.clientTransactions) {
        Iterator<SIPClientTransaction> li = this.clientTransactions.iterator();
        while (li.hasNext()) {
          SIPTransaction transaction = (SIPTransaction) li.next();
          //					SIPRequest sipRequest = (SIPRequest) (transaction
          //							.getRequest());

          SIPClientTransaction sipClientTransaction = (SIPClientTransaction) transaction;
          if (sipClientTransaction.doesCancelMatchTransaction(cancelRequest))
            return sipClientTransaction;
        }
      }
    }
    if (LogWriter.needsLogging)
      logWriter.logMessage("Could not find transaction for cancel request");
    return null;
  }
  /**
   * Gets invoked by the parser as a callback on successful message parsing (i.e. no parser errors).
   *
   * @param sipMessage Message to process (this calls the application for processing the message).
   *     <p>Jvb: note that this code is identical to TCPMessageChannel, refactor some day
   */
  public void processMessage(SIPMessage sipMessage) throws Exception {
    try {
      if (sipMessage.getFrom() == null
          || sipMessage.getTo() == null
          || sipMessage.getCallId() == null
          || sipMessage.getCSeq() == null
          || sipMessage.getViaHeaders() == null) {

        if (logger.isLoggingEnabled()) {
          String badmsg = sipMessage.encode();
          logger.logError("bad message " + badmsg);
          logger.logError(">>> Dropped Bad Msg");
        }
        return;
      }

      sipMessage.setRemoteAddress(this.peerAddress);
      sipMessage.setRemotePort(this.getPeerPort());
      sipMessage.setLocalAddress(this.getMessageProcessor().getIpAddress());
      sipMessage.setLocalPort(this.getPort());
      // Issue 3: https://telestax.atlassian.net/browse/JSIP-3
      sipMessage.setPeerPacketSourceAddress(this.peerAddress);
      sipMessage.setPeerPacketSourcePort(this.peerPort);

      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.getFirst();
        // the peer address and tag it appropriately.
        Hop hop = sipStack.addressResolver.resolveAddress(v.getHop());
        this.peerProtocol = v.getTransport();
        // if(peerPortAdvertisedInHeaders <= 0) {
        int hopPort = v.getPort();
        if (logger.isLoggingEnabled(LogWriter.TRACE_DEBUG)) {
          logger.logDebug(
              "hop port = "
                  + hopPort
                  + " for request "
                  + sipMessage
                  + " for this channel "
                  + this
                  + " key "
                  + key);
        }
        if (hopPort <= 0) {
          // if port is 0 we assume the default port for TCP
          this.peerPortAdvertisedInHeaders = 5060;
        } else {
          this.peerPortAdvertisedInHeaders = hopPort;
        }
        if (logger.isLoggingEnabled(LogWriter.TRACE_DEBUG)) {
          logger.logDebug(
              "3.Storing peerPortAdvertisedInHeaders = "
                  + peerPortAdvertisedInHeaders
                  + " for this channel "
                  + this
                  + " key "
                  + key);
        }
        // }
        // may be needed to reconnect, when diff than peer address
        if (peerAddressAdvertisedInHeaders == null) {
          peerAddressAdvertisedInHeaders = hop.getHost();
          if (logger.isLoggingEnabled(LogWriter.TRACE_DEBUG)) {
            logger.logDebug(
                "3.Storing peerAddressAdvertisedInHeaders = "
                    + peerAddressAdvertisedInHeaders
                    + " for this channel "
                    + this
                    + " key "
                    + key);
          }
        }

        try {
          if (mySock != null) { // selfrouting makes socket = null
            // https://jain-sip.dev.java.net/issues/show_bug.cgi?id=297
            this.peerAddress = mySock.getInetAddress();
          }
          // Check to see if the received parameter matches
          // the peer address and tag it appropriately.

          // JvB: dont do this. It is both costly and incorrect
          // Must set received also when it is a FQDN, regardless
          // whether
          // it resolves to the correct IP address
          // InetAddress sentByAddress =
          // InetAddress.getByName(hop.getHost());
          // JvB: if sender added 'rport', must always set received
          boolean hasRPort = v.hasParameter(Via.RPORT);
          if (!hasRPort && v.getPort() != peerPort) {
            // https://github.com/RestComm/jain-sip/issues/79
            if (logger.isLoggingEnabled(LogWriter.TRACE_DEBUG)) {
              logger.logDebug(
                  "setting rport since viaPort "
                      + v.getPort()
                      + " different than peerPacketSourcePort "
                      + peerPort
                      + " so that the response can be routed back");
            }
            hasRPort = true;
          }
          if (hasRPort || !hop.getHost().equals(this.peerAddress.getHostAddress())) {
            v.setParameter(Via.RECEIVED, this.peerAddress.getHostAddress());
          }
          // @@@ hagai
          // JvB: technically, may only do this when Via already
          // contains
          // rport
          v.setParameter(Via.RPORT, Integer.toString(this.peerPort));
        } catch (java.text.ParseException ex) {
          InternalErrorHandler.handleException(ex);
        }
        // Use this for outgoing messages as well.
        if (!this.isCached && mySock != null) { // self routing makes
          // mySock=null
          // https://jain-sip.dev.java.net/issues/show_bug.cgi?id=297
          this.isCached = true;
          int remotePort = ((java.net.InetSocketAddress) mySock.getRemoteSocketAddress()).getPort();
          String key = IOHandler.makeKey(mySock.getInetAddress(), remotePort);
          if (this.messageProcessor instanceof NioTcpMessageProcessor) {
            // https://java.net/jira/browse/JSIP-475 don't use iohandler in case of NIO
            // communications of the socket will leak in the iohandler sockettable
            ((NioTcpMessageProcessor) this.messageProcessor)
                .nioHandler.putSocket(key, mySock.getChannel());
          } else {
            sipStack.ioHandler.putSocket(key, mySock);
          }
          // since it can close the socket it needs to be after the mySock usage otherwise
          // it the socket will be disconnected and NPE will be thrown in some edge cases
          ((ConnectionOrientedMessageProcessor) this.messageProcessor).cacheMessageChannel(this);
        }
      }

      // 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 (logger.isLoggingEnabled(LogWriter.TRACE_DEBUG)) {
          logger.logDebug("----Processing Message---");
        }
        if (logger.isLoggingEnabled(ServerLogger.TRACE_MESSAGES)) {

          sipStack.serverLogger.logMessage(
              sipMessage,
              this.getPeerHostPort().toString(),
              this.messageProcessor.getIpAddress().getHostAddress()
                  + ":"
                  + this.messageProcessor.getPort(),
              false,
              receptionTime);
        }
        // Check for reasonable size - reject message
        // if it is too long.
        if (sipStack.getMaxMessageSize() > 0
            && sipRequest.getSize()
                    + (sipRequest.getContentLength() == null
                        ? 0
                        : sipRequest.getContentLength().getContentLength())
                > sipStack.getMaxMessageSize()) {
          SIPResponse sipResponse = sipRequest.createResponse(SIPResponse.MESSAGE_TOO_LARGE);
          byte[] resp = sipResponse.encodeAsBytes(this.getTransport());
          this.sendMessage(resp, false);
          throw new Exception("Message size exceeded");
        }

        String sipVersion = ((SIPRequest) sipMessage).getRequestLine().getSipVersion();
        if (!sipVersion.equals("SIP/2.0")) {
          SIPResponse versionNotSupported =
              ((SIPRequest) sipMessage)
                  .createResponse(Response.VERSION_NOT_SUPPORTED, "Bad SIP version " + sipVersion);
          this.sendMessage(versionNotSupported.encodeAsBytes(this.getTransport()), false);
          throw new Exception("Bad version ");
        }

        String method = ((SIPRequest) sipMessage).getMethod();
        String cseqMethod = ((SIPRequest) sipMessage).getCSeqHeader().getMethod();

        if (!method.equalsIgnoreCase(cseqMethod)) {
          SIPResponse sipResponse = sipRequest.createResponse(SIPResponse.BAD_REQUEST);
          byte[] resp = sipResponse.encodeAsBytes(this.getTransport());
          this.sendMessage(resp, false);
          throw new Exception("Bad CSeq method" + sipMessage + " method " + method);
        }

        // Stack could not create a new server request interface.
        // maybe not enough resources.
        ServerRequestInterface sipServerRequest = sipStack.newSIPServerRequest(sipRequest, this);

        if (sipServerRequest != null) {
          try {
            sipServerRequest.processRequest(sipRequest, this);
          } finally {
            if (sipServerRequest instanceof SIPTransaction) {
              SIPServerTransaction sipServerTx = (SIPServerTransaction) sipServerRequest;
              if (!sipServerTx.passToListener()) ((SIPTransaction) sipServerRequest).releaseSem();
            }
          }
        } else {
          if (sipStack.sipMessageValve
              == null) { // Allow message valves to nullify messages without error
            SIPResponse response = sipRequest.createResponse(Response.SERVICE_UNAVAILABLE);

            RetryAfter retryAfter = new RetryAfter();

            // Be a good citizen and send a decent response code back.
            try {
              retryAfter.setRetryAfter((int) (10 * (Math.random())));
              response.setHeader(retryAfter);
              this.sendMessage(response);
            } catch (Exception e) {
              // IGNore
            }
            if (logger.isLoggingEnabled())
              logger.logWarning("Dropping message -- could not acquire semaphore");
          }
        }
      } else {
        SIPResponse sipResponse = (SIPResponse) sipMessage;
        // JvB: dont do this
        // if (sipResponse.getStatusCode() == 100)
        // sipResponse.getTo().removeParameter("tag");
        try {
          sipResponse.checkHeaders();
        } catch (ParseException ex) {
          if (logger.isLoggingEnabled())
            logger.logError("Dropping Badly formatted response message >>> " + sipResponse);
          return;
        }
        // This is a response message - process it.
        // Check the size of the response.
        // If it is too large dump it silently.
        if (sipStack.getMaxMessageSize() > 0
            && sipResponse.getSize()
                    + (sipResponse.getContentLength() == null
                        ? 0
                        : sipResponse.getContentLength().getContentLength())
                > sipStack.getMaxMessageSize()) {
          if (logger.isLoggingEnabled(LogWriter.TRACE_DEBUG))
            logger.logDebug("Message size exceeded");
          return;
        }

        ServerResponseInterface sipServerResponse =
            sipStack.newSIPServerResponse(sipResponse, this);
        if (sipServerResponse != null) {
          try {
            if (sipServerResponse instanceof SIPClientTransaction
                && !((SIPClientTransaction) sipServerResponse).checkFromTag(sipResponse)) {
              if (logger.isLoggingEnabled())
                logger.logError("Dropping response message with invalid tag >>> " + sipResponse);
              return;
            }

            sipServerResponse.processResponse(sipResponse, this);
          } finally {
            if (sipServerResponse instanceof SIPTransaction
                && !((SIPTransaction) sipServerResponse).passToListener()) {
              // Note that the semaphore is released in event
              // scanner if the
              // request is actually processed by the Listener.
              ((SIPTransaction) sipServerResponse).releaseSem();
            }
          }
        } else {
          logger.logWarning(
              "Application is blocked -- could not acquire semaphore -- dropping response");
        }
      }
    } 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.getStackLogger().isLoggingEnabled(ServerLogger.TRACE_MESSAGES)) {

        this.sipStack.serverLogger.logMessage(
            sipMessage,
            this.getPeerHostPort().toString(),
            this.getHost() + ":" + this.myPort,
            false,
            receptionTime);
      }
      final ServerRequestInterface sipServerRequest =
          sipStack.newSIPServerRequest(sipRequest, this);
      // Drop it if there is no request returned
      if (sipServerRequest == null) {
        if (sipStack.isLoggingEnabled()) {
          this.sipStack
              .getStackLogger()
              .logWarning("Null request interface returned -- dropping request");
        }

        return;
      }
      if (sipStack.isLoggingEnabled(LogWriter.TRACE_DEBUG))
        this.sipStack
            .getStackLogger()
            .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(LogWriter.TRACE_DEBUG))
        this.sipStack
            .getStackLogger()
            .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
              .getStackLogger()
              .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
                  .getStackLogger()
                  .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(LogWriter.TRACE_DEBUG)) {
          this.sipStack.getStackLogger().logDebug("null sipServerResponse!");
        }
      }
    }
  }
Esempio n. 7
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  /**
   * Handles a new SIP request. It finds a server transaction to handle this message. If none
   * exists, it creates a new transaction.
   *
   * @param requestReceived Request to handle.
   * @param requestMessageChannel Channel that received message.
   * @return A server transaction.
   */
  protected ServerRequestInterface newSIPServerRequest(
      SIPRequest requestReceived, MessageChannel requestMessageChannel) {

    // Iterator through all server transactions
    Iterator<SIPServerTransaction> transactionIterator;
    // Next transaction in the set
    SIPServerTransaction nextTransaction;
    // Transaction to handle this request
    SIPServerTransaction currentTransaction;

    String key = requestReceived.getTransactionId();

    currentTransaction = (SIPServerTransaction) serverTransactionTable.get(key);
    if (currentTransaction == null
        || !currentTransaction.isMessagePartOfTransaction(requestReceived)) {

      // Loop through all server transactions
      synchronized (serverTransactions) {
        transactionIterator = serverTransactions.iterator();
        currentTransaction = null;
        while (transactionIterator.hasNext() && currentTransaction == null) {

          nextTransaction = (SIPServerTransaction) transactionIterator.next();

          // If this transaction should handle this request,
          if (nextTransaction.isMessagePartOfTransaction(requestReceived)) {
            // Mark this transaction as the one
            // to handle this message
            currentTransaction = nextTransaction;
          }
        }

        // If no transaction exists to handle this message
        if (currentTransaction == null) {
          currentTransaction = findPendingTransaction(requestReceived);
          if (currentTransaction != null) return currentTransaction;
          currentTransaction = createServerTransaction(requestMessageChannel);
          currentTransaction.setOriginalRequest(requestReceived);
          if (!isDialogCreated(requestReceived.getMethod())) {
            // Dialog is not created - can we find the state?
            // If so, then create a transaction and add it.
            String dialogId = requestReceived.getDialogId(true);
            SIPDialog dialog = getDialog(dialogId);
            // Sequence numbers are supposed to increment.
            // avoid processing old sequence numbers and
            // delivering the same request up to the
            // application if the request has already been seen.
            // Special handling applies to ACK processing.
            if (dialog != null
                && (requestReceived.getMethod().equals(Request.ACK)
                    || requestReceived.getCSeq().getSequenceNumber()
                        > dialog.getRemoteSequenceNumber())) {
              // Found a dialog.
              if (LogWriter.needsLogging)
                logWriter.logMessage("adding server transaction " + currentTransaction);
              serverTransactions.add(0, currentTransaction);
              addTransactionHash(currentTransaction);
              currentTransaction.startTransactionTimer();
              currentTransaction.isMapped = true;
            }
          } else {
            // Create the transaction but dont map it.
            String dialogId = requestReceived.getDialogId(true);
            SIPDialog dialog = getDialog(dialogId);
            // This is a dialog creating request that is part of an
            // existing dialog (eg. re-Invite). Re-invites get a non
            // null server transaction Id (unlike the original
            // invite).
            if (dialog != null
                && requestReceived.getCSeq().getSequenceNumber()
                    > dialog.getRemoteSequenceNumber()) {
              currentTransaction.map();
              if (LogWriter.needsLogging)
                logWriter.logMessage("adding server transaction " + currentTransaction);
              serverTransactions.add(0, currentTransaction);
              addTransactionHash(currentTransaction);
              currentTransaction.startTransactionTimer();
              currentTransaction.toListener = true;
            }
          }
        }
      }
    }

    // Set ths transaction's encapsulated request
    // interface from the superclass
    currentTransaction.setRequestInterface(
        super.newSIPServerRequest(requestReceived, currentTransaction));
    return currentTransaction;
  }