public void handle(final AbstractActiveNetModule aOwner, @Nonnull final Socket aSocket) {
final String sClientInfo = getClientInfo(aSocket);
s_aLogger.info("Incoming connection " + sClientInfo);
final AS2Message aMsg = createMessage(aSocket);
final IAS2HttpResponseHandler aResponseHandler = new AS2HttpResponseHandlerSocket(aSocket);
// Time the transmission
final StopWatch aSW = StopWatch.createdStarted();
byte[] aMsgData = null;
try {
// Read in the message request, headers, and data
aMsgData =
readAndDecodeHttpRequest(
new AS2InputStreamProviderSocket(aSocket), aResponseHandler, aMsg);
} catch (final Exception ex) {
final NetException ne = new NetException(aSocket.getInetAddress(), aSocket.getPort(), ex);
ne.terminate();
}
aSW.stop();
if (aMsgData != null) {
s_aLogger.info(
"received "
+ IOHelper.getTransferRate(aMsgData.length, aSW)
+ " from "
+ sClientInfo
+ aMsg.getLoggingText());
handleIncomingMessage(sClientInfo, aMsgData, aMsg, aResponseHandler);
}
}
/**
* Create a new message and record the source ip and port
*
* @param aSocket The socket through which the message will be read.
* @return The {@link AS2Message} to use and never <code>null</code>.
*/
@Nonnull
protected AS2Message createMessage(@Nonnull final Socket aSocket) {
final AS2Message aMsg = new AS2Message();
aMsg.setAttribute(CNetAttribute.MA_SOURCE_IP, aSocket.getInetAddress().toString());
aMsg.setAttribute(CNetAttribute.MA_SOURCE_PORT, Integer.toString(aSocket.getPort()));
aMsg.setAttribute(CNetAttribute.MA_DESTINATION_IP, aSocket.getLocalAddress().toString());
aMsg.setAttribute(CNetAttribute.MA_DESTINATION_PORT, Integer.toString(aSocket.getLocalPort()));
aMsg.setAttribute(AS2Message.ATTRIBUTE_RECEIVED, Boolean.TRUE.toString());
return aMsg;
}
private void _sendAsyncMDN(@Nonnull final AS2Message aMsg) throws OpenAS2Exception {
s_aLogger.info("Async MDN submitted" + aMsg.getLoggingText());
final DispositionType aDisposition = DispositionType.createSuccess();
try {
final IMessageMDN aMdn = aMsg.getMDN();
// Create a HTTP connection
final String sUrl = aMsg.getAsyncMDNurl();
final boolean bOutput = true;
final boolean bInput = true;
final boolean bUseCaches = false;
final HttpURLConnection aConn =
getConnection(sUrl, bOutput, bInput, bUseCaches, "POST", getSession().getHttpProxy());
try {
s_aLogger.info("connected to " + sUrl + aMsg.getLoggingText());
aConn.setRequestProperty(CAS2Header.HEADER_CONNECTION, CAS2Header.DEFAULT_CONNECTION);
aConn.setRequestProperty(CAS2Header.HEADER_USER_AGENT, CAS2Header.DEFAULT_USER_AGENT);
// Copy all the header from mdn to the RequestProperties of conn
final Enumeration<?> aHeaders = aMdn.getHeaders().getAllHeaders();
while (aHeaders.hasMoreElements()) {
final Header aHeader = (Header) aHeaders.nextElement();
final String sHeaderValue =
aHeader.getValue().replace('\t', ' ').replace('\n', ' ').replace('\r', ' ');
aConn.setRequestProperty(aHeader.getName(), sHeaderValue);
}
// Note: closing this stream causes connection abort errors on some AS2
// servers
final OutputStream aMessageOS = aConn.getOutputStream();
// Transfer the data
final InputStream aMessageIS = aMdn.getData().getInputStream();
final StopWatch aSW = StopWatch.createdStarted();
final long nBytes = IOHelper.copy(aMessageIS, aMessageOS);
aSW.stop();
s_aLogger.info(
"transferred " + IOHelper.getTransferRate(nBytes, aSW) + aMsg.getLoggingText());
// Check the HTTP Response code
final int nResponseCode = aConn.getResponseCode();
if (nResponseCode != HttpURLConnection.HTTP_OK
&& nResponseCode != HttpURLConnection.HTTP_CREATED
&& nResponseCode != HttpURLConnection.HTTP_ACCEPTED
&& nResponseCode != HttpURLConnection.HTTP_PARTIAL
&& nResponseCode != HttpURLConnection.HTTP_NO_CONTENT) {
s_aLogger.error(
"sent AsyncMDN [" + aDisposition.getAsString() + "] Fail " + aMsg.getLoggingText());
throw new HttpResponseException(sUrl, nResponseCode, aConn.getResponseMessage());
}
s_aLogger.info(
"sent AsyncMDN [" + aDisposition.getAsString() + "] OK " + aMsg.getLoggingText());
// log & store mdn into backup folder.
try {
getSession()
.getMessageProcessor()
.handle(IProcessorStorageModule.DO_STOREMDN, aMsg, null);
} catch (final ComponentNotFoundException ex) {
// May be
}
} finally {
aConn.disconnect();
}
} catch (final HttpResponseException ex) {
// Resend if the HTTP Response has an error code
ex.terminate();
_resend(aMsg, ex);
} catch (final IOException ex) {
// Resend if a network error occurs during transmission
final OpenAS2Exception wioe = WrappedOpenAS2Exception.wrap(ex);
wioe.addSource(OpenAS2Exception.SOURCE_MESSAGE, aMsg);
wioe.terminate();
_resend(aMsg, wioe);
} catch (final Exception ex) {
// Propagate error if it can't be handled by a resend
throw WrappedOpenAS2Exception.wrap(ex);
}
}
/**
* This method can be used to handle an incoming HTTP message AFTER the headers where extracted.
*
* @param sClientInfo Client connection info
* @param aMsgData The message body
* @param aMsg The AS2 message that will be filled by this method
* @param aResponseHandler The response handler which handles HTTP error messages as well as
* synchronous MDN.
*/
public void handleIncomingMessage(
@Nonnull final String sClientInfo,
@Nonnull final byte[] aMsgData,
@Nonnull final AS2Message aMsg,
@Nonnull final IAS2HttpResponseHandler aResponseHandler) {
// TODO store HTTP request, headers, and data to file in Received folder
// -> use message-id for filename?
try {
final IAS2Session aSession = m_aReceiverModule.getSession();
try {
// Put received data in a MIME body part
final ContentType aReceivedContentType =
new ContentType(aMsg.getHeader(CAS2Header.HEADER_CONTENT_TYPE));
final String sReceivedContentType = aReceivedContentType.toString();
final MimeBodyPart aReceivedPart = new MimeBodyPart();
aReceivedPart.setDataHandler(
new DataHandler(new ByteArrayDataSource(aMsgData, sReceivedContentType, null)));
// Header must be set AFTER the DataHandler!
aReceivedPart.setHeader(CAS2Header.HEADER_CONTENT_TYPE, sReceivedContentType);
aMsg.setData(aReceivedPart);
} catch (final Exception ex) {
throw new DispositionException(
DispositionType.createError("unexpected-processing-error"),
AbstractActiveNetModule.DISP_PARSING_MIME_FAILED,
ex);
}
// Extract AS2 ID's from header, find the message's partnership and
// update the message
try {
final String sAS2From = aMsg.getAS2From();
aMsg.getPartnership().setSenderAS2ID(sAS2From);
final String sAS2To = aMsg.getAS2To();
aMsg.getPartnership().setReceiverAS2ID(sAS2To);
// Fill all partnership attributes etc.
aSession.getPartnershipFactory().updatePartnership(aMsg, false);
} catch (final OpenAS2Exception ex) {
throw new DispositionException(
DispositionType.createError("authentication-failed"),
AbstractActiveNetModule.DISP_PARTNERSHIP_NOT_FOUND,
ex);
}
// Per RFC5402 compression is always before encryption but can be before
// or after signing of message but only in one place
final ICryptoHelper aCryptoHelper = AS2Helper.getCryptoHelper();
boolean bIsDecompressed = false;
// Decrypt and verify signature of the data, and attach data to the
// message
decrypt(aMsg);
if (aCryptoHelper.isCompressed(aMsg.getContentType())) {
if (s_aLogger.isTraceEnabled())
s_aLogger.trace("Decompressing received message before checking signature...");
decompress(aMsg);
bIsDecompressed = true;
}
verify(aMsg);
if (aCryptoHelper.isCompressed(aMsg.getContentType())) {
// Per RFC5402 compression is always before encryption but can be before
// or after signing of message but only in one place
if (bIsDecompressed) {
throw new DispositionException(
DispositionType.createError("decompression-failed"),
AbstractActiveNetModule.DISP_DECOMPRESSION_ERROR,
new Exception(
"Message has already been decompressed. Per RFC5402 it cannot occur twice."));
}
if (s_aLogger.isTraceEnabled())
if (aMsg.containsAttribute(AS2Message.ATTRIBUTE_RECEIVED_SIGNED))
s_aLogger.trace("Decompressing received message after verifying signature...");
else s_aLogger.trace("Decompressing received message after decryption...");
decompress(aMsg);
bIsDecompressed = true;
}
if (s_aLogger.isTraceEnabled())
try {
s_aLogger.trace(
"SMIME Decrypted Content-Disposition: "
+ aMsg.getContentDisposition()
+ "\n Content-Type received: "
+ aMsg.getContentType()
+ "\n HEADERS after decryption: "
+ aMsg.getData().getAllHeaders()
+ "\n Content-Disposition in MSG detData() MIMEPART after decryption: "
+ aMsg.getData().getContentType());
} catch (final MessagingException ex) {
s_aLogger.error("Failed to trace message: " + aMsg, ex);
}
// Validate the received message before storing
try {
aSession
.getMessageProcessor()
.handle(IProcessorStorageModule.DO_VALIDATE_BEFORE_STORE, aMsg, null);
} catch (final NoModuleException ex) {
// No module installed - ignore
} catch (final OpenAS2Exception ex) {
throw new DispositionException(
DispositionType.createError("unexpected-processing-error"),
AbstractActiveNetModule.DISP_VALIDATION_FAILED
+ "\n"
+ StackTraceHelper.getStackAsString(ex),
ex);
}
// Store the received message
try {
aSession.getMessageProcessor().handle(IProcessorStorageModule.DO_STORE, aMsg, null);
} catch (final NoModuleException ex) {
// No module installed - ignore
} catch (final OpenAS2Exception ex) {
throw new DispositionException(
DispositionType.createError("unexpected-processing-error"),
AbstractActiveNetModule.DISP_STORAGE_FAILED + "\n" + ex.getMessage(),
ex);
}
// Validate the received message after storing
try {
aSession
.getMessageProcessor()
.handle(IProcessorStorageModule.DO_VALIDATE_AFTER_STORE, aMsg, null);
} catch (final NoModuleException ex) {
// No module installed - ignore
} catch (final OpenAS2Exception ex) {
throw new DispositionException(
DispositionType.createError("unexpected-processing-error"),
AbstractActiveNetModule.DISP_VALIDATION_FAILED
+ "\n"
+ StackTraceHelper.getStackAsString(ex),
ex);
}
try {
if (aMsg.isRequestingMDN()) {
// Transmit a success MDN if requested
sendSyncMDN(
sClientInfo,
aResponseHandler,
aMsg,
DispositionType.createSuccess(),
AbstractActiveNetModule.DISP_SUCCESS);
} else {
// Just send a HTTP OK
HTTPHelper.sendSimpleHTTPResponse(aResponseHandler, HttpURLConnection.HTTP_OK);
s_aLogger.info("sent HTTP OK " + sClientInfo + aMsg.getLoggingText());
}
} catch (final Exception ex) {
throw new WrappedOpenAS2Exception(
"Error creating and returning MDN, message was stilled processed", ex);
}
} catch (final DispositionException ex) {
sendSyncMDN(sClientInfo, aResponseHandler, aMsg, ex.getDisposition(), ex.getText());
m_aReceiverModule.handleError(aMsg, ex);
} catch (final OpenAS2Exception ex) {
m_aReceiverModule.handleError(aMsg, ex);
}
}
protected void sendSyncMDN(
@Nonnull final String sClientInfo,
@Nonnull final IAS2HttpResponseHandler aResponseHandler,
@Nonnull final AS2Message aMsg,
@Nonnull final DispositionType aDisposition,
@Nonnull final String sText) {
final boolean bMDNBlocked = aMsg.getPartnership().isBlockErrorMDN();
if (!bMDNBlocked) {
try {
final IAS2Session aSession = m_aReceiverModule.getSession();
final IMessageMDN aMdn = AS2Helper.createMDN(aSession, aMsg, aDisposition, sText);
if (aMsg.isRequestingAsynchMDN()) {
// if asyncMDN requested, close connection and initiate separate MDN
// send
final InternetHeaders aHeaders = new InternetHeaders();
aHeaders.setHeader(CAS2Header.HEADER_CONTENT_LENGTH, Integer.toString(0));
// Empty data
final NonBlockingByteArrayOutputStream aData = new NonBlockingByteArrayOutputStream();
aResponseHandler.sendHttpResponse(HttpURLConnection.HTTP_OK, aHeaders, aData);
s_aLogger.info(
"Setup to send asynch MDN ["
+ aDisposition.getAsString()
+ "] "
+ sClientInfo
+ aMsg.getLoggingText());
// trigger explicit sending
aSession.getMessageProcessor().handle(IProcessorSenderModule.DO_SENDMDN, aMsg, null);
} else {
// otherwise, send sync MDN back on same connection
s_aLogger.info(
"Sending back sync MDN ["
+ aDisposition.getAsString()
+ "] "
+ sClientInfo
+ aMsg.getLoggingText());
// Get data and therefore content length for sync MDN
final NonBlockingByteArrayOutputStream aData = new NonBlockingByteArrayOutputStream();
final MimeBodyPart aPart = aMdn.getData();
StreamHelper.copyInputStreamToOutputStream(aPart.getInputStream(), aData);
aMdn.setHeader(CAS2Header.HEADER_CONTENT_LENGTH, Integer.toString(aData.getSize()));
// start HTTP response
aResponseHandler.sendHttpResponse(HttpURLConnection.HTTP_OK, aMdn.getHeaders(), aData);
// Save sent MDN for later examination
try {
aSession.getMessageProcessor().handle(IProcessorStorageModule.DO_STOREMDN, aMsg, null);
} catch (final ComponentNotFoundException ex) {
// No message processor found
} catch (final NoModuleException ex) {
// No module found in message processor
}
s_aLogger.info(
"sent MDN ["
+ aDisposition.getAsString()
+ "] "
+ sClientInfo
+ aMsg.getLoggingText());
}
} catch (final Exception ex) {
final OpenAS2Exception we = WrappedOpenAS2Exception.wrap(ex);
we.addSource(OpenAS2Exception.SOURCE_MESSAGE, aMsg);
we.terminate();
}
}
}