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Peppol AS4 servlet for incoming transmissions
/*
* Copyright (C) 2015-2024 Philip Helger (www.helger.com)
* philip[at]helger[dot]com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.helger.phase4.peppol.servlet;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.time.OffsetDateTime;
import java.time.ZoneOffset;
import java.util.Locale;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.unece.cefact.namespaces.sbdh.StandardBusinessDocument;
import org.w3c.dom.Node;
import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.IsSPIImplementation;
import com.helger.commons.annotation.Nonempty;
import com.helger.commons.annotation.OverrideOnDemand;
import com.helger.commons.annotation.ReturnsMutableCopy;
import com.helger.commons.annotation.ReturnsMutableObject;
import com.helger.commons.annotation.UnsupportedOperation;
import com.helger.commons.annotation.UsedViaReflection;
import com.helger.commons.collection.impl.CommonsArrayList;
import com.helger.commons.collection.impl.ICommonsList;
import com.helger.commons.datetime.XMLOffsetDateTime;
import com.helger.commons.error.IError;
import com.helger.commons.error.list.ErrorList;
import com.helger.commons.http.HttpHeaderMap;
import com.helger.commons.io.stream.NonBlockingByteArrayOutputStream;
import com.helger.commons.io.stream.StreamHelper;
import com.helger.commons.lang.ServiceLoaderHelper;
import com.helger.commons.state.ETriState;
import com.helger.commons.string.StringHelper;
import com.helger.peppol.reporting.api.CPeppolReporting;
import com.helger.peppol.reporting.api.PeppolReportingItem;
import com.helger.peppol.sbdh.PeppolSBDHData;
import com.helger.peppol.sbdh.read.PeppolSBDHDocumentReadException;
import com.helger.peppol.sbdh.read.PeppolSBDHDocumentReader;
import com.helger.peppol.smp.ESMPTransportProfile;
import com.helger.peppol.smp.ISMPTransportProfile;
import com.helger.peppol.utils.EPeppolCertificateCheckResult;
import com.helger.peppol.utils.PeppolCertificateChecker;
import com.helger.peppol.utils.PeppolCertificateHelper;
import com.helger.peppolid.IDocumentTypeIdentifier;
import com.helger.peppolid.IParticipantIdentifier;
import com.helger.peppolid.IProcessIdentifier;
import com.helger.peppolid.factory.SimpleIdentifierFactory;
import com.helger.peppolid.peppol.PeppolIdentifierHelper;
import com.helger.phase4.attachment.AS4DecompressException;
import com.helger.phase4.attachment.EAS4CompressionMode;
import com.helger.phase4.attachment.IAS4Attachment;
import com.helger.phase4.attachment.WSS4JAttachment;
import com.helger.phase4.ebms3header.Ebms3Error;
import com.helger.phase4.ebms3header.Ebms3Property;
import com.helger.phase4.ebms3header.Ebms3SignalMessage;
import com.helger.phase4.ebms3header.Ebms3UserMessage;
import com.helger.phase4.incoming.IAS4IncomingMessageMetadata;
import com.helger.phase4.incoming.IAS4IncomingMessageState;
import com.helger.phase4.incoming.spi.AS4MessageProcessorResult;
import com.helger.phase4.incoming.spi.AS4SignalMessageProcessorResult;
import com.helger.phase4.incoming.spi.IAS4IncomingMessageProcessorSPI;
import com.helger.phase4.mgr.MetaAS4Manager;
import com.helger.phase4.model.error.EEbmsError;
import com.helger.phase4.model.pmode.IPMode;
import com.helger.phase4.util.Phase4Exception;
import com.helger.sbdh.SBDMarshaller;
import com.helger.security.certificate.CertificateHelper;
import com.helger.smpclient.peppol.ISMPServiceMetadataProvider;
import com.helger.smpclient.peppol.PeppolWildcardSelector;
import com.helger.smpclient.peppol.SMPClientReadOnly;
import com.helger.xml.serialize.write.XMLWriter;
import com.helger.xsds.peppol.smp1.EndpointType;
import com.helger.xsds.peppol.smp1.SignedServiceMetadataType;
/**
* This is the SPI implementation to handle generic incoming AS4 requests. The
* main goal of this class is to implement the Peppol specific requirements of
* packaging data in SBDH. Users of this package must implement
* {@link IPhase4PeppolIncomingSBDHandlerSPI} instead which provides a more
* Peppol-style SPI handler. This class is instantiated only once, therefore
* changing the state of this class may have unintended side effects.
*
* @author Philip Helger
*/
@IsSPIImplementation
public class Phase4PeppolServletMessageProcessorSPI implements IAS4IncomingMessageProcessorSPI
{
/**
* This class represents the data of a single AS4 attachment.
*
* @author Philip Helger
*/
private static final class ReadAttachment
{
private String m_sID;
private String m_sMimeType;
private String m_sUncompressedMimeType;
private Charset m_aCharset;
private EAS4CompressionMode m_eCompressionMode;
private byte [] m_aPayloadBytes;
private StandardBusinessDocument m_aSBDH;
private ReadAttachment ()
{}
@Nullable
public String getID ()
{
return m_sID;
}
@Nullable
public String getMimeType ()
{
return m_sMimeType;
}
@Nullable
public String getUncompressedMimeType ()
{
return m_sUncompressedMimeType;
}
@Nullable
public Charset getCharset ()
{
return m_aCharset;
}
@Nullable
public EAS4CompressionMode getCompressionMode ()
{
return m_eCompressionMode;
}
@Nonnull
@ReturnsMutableObject
public byte [] payloadBytes ()
{
return m_aPayloadBytes;
}
@Nonnull
@ReturnsMutableObject
public StandardBusinessDocument standardBusinessDocument ()
{
return m_aSBDH;
}
}
public static final ESMPTransportProfile DEFAULT_TRANSPORT_PROFILE = ESMPTransportProfile.TRANSPORT_PROFILE_PEPPOL_AS4_V2;
private static final Logger LOGGER = LoggerFactory.getLogger (Phase4PeppolServletMessageProcessorSPI.class);
private ICommonsList m_aHandlers;
private ISMPTransportProfile m_aTransportProfile = DEFAULT_TRANSPORT_PROFILE;
private Phase4PeppolReceiverConfiguration m_aReceiverCheckData;
/**
* Constructor. Uses all SPI implementations of
* {@link IPhase4PeppolIncomingSBDHandlerSPI} as the handlers.
*/
@UsedViaReflection
public Phase4PeppolServletMessageProcessorSPI ()
{
m_aHandlers = ServiceLoaderHelper.getAllSPIImplementations (IPhase4PeppolIncomingSBDHandlerSPI.class);
}
/**
* @return A list of all contained Peppol specific SBD handlers. Never
* null but maybe empty.
*/
@Nonnull
@ReturnsMutableCopy
public final ICommonsList getAllHandler ()
{
return m_aHandlers.getClone ();
}
/**
* Set all handler to be used. This is helpful, if this message processor is
* not used as an SPI but as a manually configured handler.
*
* @param aHandlers
* The handler to be set. May not be null but maybe empty
* (in which case the message is basically discarded).
* @return this for chaining
*/
@Nonnull
public final Phase4PeppolServletMessageProcessorSPI setAllHandler (@Nonnull final Iterable aHandlers)
{
ValueEnforcer.notNull (aHandlers, "Handlers");
m_aHandlers = new CommonsArrayList <> (aHandlers);
if (m_aHandlers.isEmpty ())
LOGGER.warn ("Phase4PeppolServletMessageProcessorSPI has an empty handler list - this means incoming messages are only checked and afterwards discarded");
return this;
}
/**
* @return the transport profile to be handled. Never null. By
* default it is "Peppol AS4 v2" (see
* {@link #DEFAULT_TRANSPORT_PROFILE}).
*/
@Nonnull
public final ISMPTransportProfile getTransportProfile ()
{
return m_aTransportProfile;
}
/**
* Set the transport profile to be used. By default it is Peppol AS4 v2.
*
* @param aTransportProfile
* The transport profile to be used. May not be null.
* @return this for chaining
*/
@Nonnull
public final Phase4PeppolServletMessageProcessorSPI setTransportProfile (@Nonnull final ISMPTransportProfile aTransportProfile)
{
ValueEnforcer.notNull (aTransportProfile, "TransportProfile");
m_aTransportProfile = aTransportProfile;
return this;
}
/**
* @return The receiver check data to be used. null by default.
* @since 0.9.13
*/
@Nullable
public final Phase4PeppolReceiverConfiguration getReceiverCheckData ()
{
return m_aReceiverCheckData;
}
/**
* Set the receiver check data to be used. If set, it overrides the global one
* defined by {@link Phase4PeppolDefaultReceiverConfiguration}.
*
* @param aReceiverCheckData
* The customer receiver check data to use. May be null.
* @return this for chaining
* @since 0.9.13
*/
@Nonnull
public final Phase4PeppolServletMessageProcessorSPI setReceiverCheckData (@Nullable final Phase4PeppolReceiverConfiguration aReceiverCheckData)
{
m_aReceiverCheckData = aReceiverCheckData;
return this;
}
@Nullable
private EndpointType _getReceiverEndpoint (@Nonnull final String sLogPrefix,
@Nonnull final ISMPServiceMetadataProvider aSMPClient,
@Nullable final IParticipantIdentifier aRecipientID,
@Nullable final IDocumentTypeIdentifier aDocTypeID,
@Nullable final IProcessIdentifier aProcessID,
@Nullable final PeppolWildcardSelector.EMode eWildcardSelectionMode) throws Phase4PeppolServletException
{
if (aRecipientID == null || aDocTypeID == null || aProcessID == null || eWildcardSelectionMode == null)
return null;
try
{
if (LOGGER.isDebugEnabled ())
{
LOGGER.debug (sLogPrefix +
"Looking up the endpoint of recipient " +
aRecipientID.getURIEncoded () +
" for " +
aRecipientID.getURIEncoded () +
" and " +
aDocTypeID.getURIEncoded () +
" and " +
aProcessID.getURIEncoded () +
" and " +
m_aTransportProfile.getID () +
"; wildcard-mode=" +
eWildcardSelectionMode);
}
final EndpointType aEndpoint;
final boolean bWildcard = PeppolIdentifierHelper.DOCUMENT_TYPE_SCHEME_PEPPOL_DOCTYPE_WILDCARD.equals (aDocTypeID.getScheme ());
if (bWildcard)
{
// Wildcard lookup
final SignedServiceMetadataType aSSM = aSMPClient.getWildcardServiceMetadataOrNull (aRecipientID,
aDocTypeID,
eWildcardSelectionMode);
aEndpoint = aSSM == null ? null : SMPClientReadOnly.getEndpoint (aSSM, aProcessID, m_aTransportProfile);
}
else
{
// Direct match
aEndpoint = aSMPClient.getEndpoint (aRecipientID, aDocTypeID, aProcessID, m_aTransportProfile);
}
return aEndpoint;
}
catch (final Exception ex)
{
throw new Phase4PeppolServletException (sLogPrefix +
"Failed to retrieve endpoint of (" +
aRecipientID.getURIEncoded () +
", " +
aDocTypeID.getURIEncoded () +
", " +
aProcessID.getURIEncoded () +
", " +
m_aTransportProfile.getID () +
")",
ex);
}
}
private static void _checkIfReceiverEndpointURLMatches (@Nonnull final String sLogPrefix,
@Nonnull @Nonempty final String sOwnAPUrl,
@Nonnull final EndpointType aRecipientEndpoint) throws Phase4PeppolServletException
{
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix + "Our AP URL is " + sOwnAPUrl);
final String sRecipientAPUrl = SMPClientReadOnly.getEndpointAddress (aRecipientEndpoint);
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix + "Recipient AP URL from SMP is " + sRecipientAPUrl);
// Is it for us?
if (sRecipientAPUrl == null || !sRecipientAPUrl.contains (sOwnAPUrl))
{
final String sErrorMsg = sLogPrefix +
"Internal error: The request is targeted for '" +
sRecipientAPUrl +
"' and is not for us (" +
sOwnAPUrl +
")";
LOGGER.error (sErrorMsg);
throw new Phase4PeppolServletException (sErrorMsg);
}
}
private static void _checkIfEndpointCertificateMatches (@Nonnull final String sLogPrefix,
@Nonnull final X509Certificate aOurCert,
@Nonnull final EndpointType aRecipientEndpoint) throws Phase4PeppolServletException
{
final String sRecipientCertString = aRecipientEndpoint.getCertificate ();
X509Certificate aRecipientCert = null;
try
{
aRecipientCert = CertificateHelper.convertStringToCertficate (sRecipientCertString);
}
catch (final CertificateException t)
{
throw new Phase4PeppolServletException (sLogPrefix +
"Internal error: Failed to convert looked up endpoint certificate string '" +
sRecipientCertString +
"' to an X.509 certificate!",
t);
}
if (aRecipientCert == null)
{
// No certificate found - most likely because of invalid SMP entry
throw new Phase4PeppolServletException (sLogPrefix +
"No certificate found in looked up endpoint! Is this AP maybe NOT contained in an SMP?");
}
// Certificate found
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix + "Conformant recipient certificate present: " + aRecipientCert.toString ());
// Compare serial numbers
if (!aOurCert.getSerialNumber ().equals (aRecipientCert.getSerialNumber ()))
{
final String sErrorMsg = sLogPrefix +
"Certificate retrieved from SMP lookup (" +
aRecipientCert +
") does not match this APs configured Certificate (" +
aOurCert +
") - different serial numbers - ignoring document";
LOGGER.error (sErrorMsg);
throw new Phase4PeppolServletException (sErrorMsg);
}
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix + "The certificate of the SMP lookup matches our certificate");
}
/**
* Method to create a new {@link PeppolReportingItem} for a received message.
*
* @param aUserMessage
* The current AS4 UserMessage. May not be null.
* @param aPeppolSBD
* The parsed Peppol SBDH object. May not be null.
* @param aState
* The processing state of the incoming message. May not be
* null.
* @param sC3ID
* The Peppol Service Provider Seat ID (in the format PXX000000). May
* neither be null nor empty.
* @param sC4CountryCode
* The country code of the End User that is the business receiver of
* the document. Must neither be null nor empty.
* @param sEndUserID
* The internal (local) ID of the End User that is the business
* receiver of the document. This ID is NOT part of the reporting
* towards OpenPeppol, it is just for created aggregating counts. Must
* neither be null nor empty.
* @return null if not all necessary elements are present. Check
* logs for details.
* @since 2.2.2
*/
@Nullable
public static PeppolReportingItem createPeppolReportingItemForReceivedMessage (@Nonnull final Ebms3UserMessage aUserMessage,
@Nonnull final PeppolSBDHData aPeppolSBD,
@Nonnull final IAS4IncomingMessageState aState,
@Nonnull @Nonempty final String sC3ID,
@Nonnull @Nonempty final String sC4CountryCode,
@Nonnull @Nonempty final String sEndUserID)
{
ValueEnforcer.notNull (aUserMessage, "UserMessage");
ValueEnforcer.notNull (aPeppolSBD, "PeppolSBD");
ValueEnforcer.notNull (aState, "State");
ValueEnforcer.notEmpty (sC3ID, "C3ID");
ValueEnforcer.notEmpty (sC4CountryCode, "C4CountryCode");
ValueEnforcer.notEmpty (sEndUserID, "EndUserID");
// In case of success start building reporting item
final XMLOffsetDateTime aUserMsgDT = aUserMessage.getMessageInfo ().getTimestamp ();
final OffsetDateTime aExchangeDT;
if (aUserMsgDT != null)
{
// Take AS4 sending date time
if (aUserMsgDT.getOffset () != null)
aExchangeDT = aUserMsgDT.toOffsetDateTime ();
else
aExchangeDT = OffsetDateTime.of (aUserMsgDT.toLocalDateTime (), ZoneOffset.UTC);
}
else
{
// Try SBDH
final XMLOffsetDateTime aSbdhDT = aPeppolSBD.getCreationDateAndTime ();
if (aSbdhDT != null)
{
// Take SBDH creation date time
if (aSbdhDT.getOffset () != null)
aExchangeDT = aSbdhDT.toOffsetDateTime ();
else
aExchangeDT = OffsetDateTime.of (aSbdhDT.toLocalDateTime (), ZoneOffset.UTC);
}
else
{
// Neither in AS4 nor in SBDH
LOGGER.warn ("Incoming messages does not contain a UserMessage/MessageInfo/Timestamp value and no SBDH CreationDateTime. Using current date time");
aExchangeDT = MetaAS4Manager.getTimestampMgr ().getCurrentDateTime ();
}
}
// Incoming message signed by C2
final String sC2ID = PeppolCertificateHelper.getSubjectCN (aState.getUsedCertificate ());
try
{
String sC1CountryCode = aPeppolSBD.getCountryC1 ();
if (StringHelper.hasNoText (sC1CountryCode))
{
// Fallback to ZZ to make sure the item can be created
sC1CountryCode = CPeppolReporting.REPLACEMENT_COUNTRY_CODE;
}
return PeppolReportingItem.builder ()
.exchangeDateTime (aExchangeDT)
.directionReceiving ()
.c2ID (sC2ID)
.c3ID (sC3ID)
.docTypeID (aPeppolSBD.getDocumentTypeAsIdentifier ())
.processID (aPeppolSBD.getProcessAsIdentifier ())
.transportProtocolPeppolAS4v2 ()
.c1CountryCode (sC1CountryCode)
.c4CountryCode (sC4CountryCode)
.endUserID (sEndUserID)
.build ();
}
catch (final IllegalStateException ex)
{
LOGGER.error ("Not all mandatory fields are set. Cannot create Peppol Reporting Item", ex);
return null;
}
}
/**
* Method that is invoked after the message was successfully processed with at
* least one handler, and before a Receipt is returned. By default this method
* does nothing. The idea was to override this method to allow for remembering
* the created transaction for Peppol Reporting.
*
* @param aUserMessage
* The current AS4 UserMessage. Never null.
* @param aPeppolSBD
* The parsed Peppol SBDH object. Never null.
* @param aState
* The processing state of the incoming message. Never
* null.
* @since 2.2.2
* @see #createPeppolReportingItemForReceivedMessage(Ebms3UserMessage,
* PeppolSBDHData, IAS4IncomingMessageState, String, String, String)
*/
@OverrideOnDemand
protected void afterSuccessfulPeppolProcessing (@Nonnull final Ebms3UserMessage aUserMessage,
@Nonnull final PeppolSBDHData aPeppolSBD,
@Nonnull final IAS4IncomingMessageState aState)
{}
@Nonnull
public AS4MessageProcessorResult processAS4UserMessage (@Nonnull final IAS4IncomingMessageMetadata aMessageMetadata,
@Nonnull final HttpHeaderMap aHttpHeaders,
@Nonnull final Ebms3UserMessage aUserMessage,
@Nonnull final IPMode aSrcPMode,
@Nullable final Node aPayload,
@Nullable final ICommonsList aIncomingAttachments,
@Nonnull final IAS4IncomingMessageState aState,
@Nonnull final ICommonsList aProcessingErrorMessages)
{
if (LOGGER.isDebugEnabled ())
LOGGER.debug ("Invoking processAS4UserMessage");
final String sMessageID = aUserMessage.getMessageInfo ().getMessageId ();
final String sService = aUserMessage.getCollaborationInfo ().getServiceValue ();
final String sAction = aUserMessage.getCollaborationInfo ().getAction ();
final String sConversationID = aUserMessage.getCollaborationInfo ().getConversationId ();
final Locale aDisplayLocale = aState.getLocale ();
final String sLogPrefix = "[" + sMessageID + "] ";
// Start consistency checks if the receiver is supported or not
final Phase4PeppolReceiverConfiguration aReceiverCheckData = m_aReceiverCheckData != null ? m_aReceiverCheckData
: Phase4PeppolDefaultReceiverConfiguration.getAsReceiverCheckData ();
// Debug log
if (LOGGER.isDebugEnabled ())
{
if (aSrcPMode == null)
LOGGER.debug (sLogPrefix + " No Source PMode present");
else
LOGGER.debug (sLogPrefix + " Source PMode = " + aSrcPMode.getID ());
LOGGER.debug (sLogPrefix + " AS4 Message ID = '" + sMessageID + "'");
LOGGER.debug (sLogPrefix + " AS4 Service = '" + sService + "'");
LOGGER.debug (sLogPrefix + " AS4 Action = '" + sAction + "'");
LOGGER.debug (sLogPrefix + " AS4 ConversationId = '" + sConversationID + "'");
// Log User Message Message Properties
if (aUserMessage.getMessageProperties () != null && aUserMessage.getMessageProperties ().hasPropertyEntries ())
{
LOGGER.debug (sLogPrefix + " AS4 MessageProperties:");
for (final Ebms3Property p : aUserMessage.getMessageProperties ().getProperty ())
LOGGER.debug (sLogPrefix + " [" + p.getName () + "] = [" + p.getValue () + "]");
}
else
LOGGER.debug (sLogPrefix + " No AS4 Mesage Properties present");
if (aPayload == null)
LOGGER.debug (sLogPrefix + " No SOAP Body Payload present");
else
LOGGER.debug (sLogPrefix + " SOAP Body Payload = " + XMLWriter.getNodeAsString (aPayload));
}
// Check preconditions
if (!aState.isSoapDecrypted ())
{
final String sDetails = "The received Peppol message seems not to be encrypted (properly).";
LOGGER.error (sLogPrefix + sDetails);
aProcessingErrorMessages.add (EEbmsError.EBMS_FAILED_DECRYPTION.errorBuilder (aDisplayLocale)
.refToMessageInError (sMessageID)
.errorDetail (sDetails)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
if (!aState.isSoapSignatureChecked ())
{
final String sDetails = "The received Peppol message seems not to be signed (properly).";
LOGGER.error (sLogPrefix + sDetails);
aProcessingErrorMessages.add (EEbmsError.EBMS_FAILED_AUTHENTICATION.errorBuilder (aDisplayLocale)
.refToMessageInError (sMessageID)
.errorDetail (sDetails)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
if (aReceiverCheckData.isCheckSigningCertificateRevocation ())
{
final OffsetDateTime aNow = MetaAS4Manager.getTimestampMgr ().getCurrentDateTime ();
final X509Certificate aSenderCert = aState.getUsedCertificate ();
// Check if signing AP certificate is revoked
// * Use global caching setting
// * Use global certificate check mode
final EPeppolCertificateCheckResult eCertCheckResult = PeppolCertificateChecker.checkPeppolAPCertificate (aSenderCert,
aNow,
ETriState.UNDEFINED,
null);
if (eCertCheckResult.isInvalid ())
{
final String sDetails = "The received Peppol message is signed with a Peppol AP certificate invalid at " +
aNow +
". Rejecting incoming message. Reason: " +
eCertCheckResult.getReason ();
LOGGER.error (sLogPrefix + sDetails);
aProcessingErrorMessages.add (EEbmsError.EBMS_FAILED_AUTHENTICATION.errorBuilder (aDisplayLocale)
.refToMessageInError (sMessageID)
.errorDetail (sDetails)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
}
else
{
LOGGER.warn (sLogPrefix + "The revocation check of the received signing certificate is disabled.");
}
// Read all attachments
final ICommonsList aReadAttachments = new CommonsArrayList <> ();
if (aIncomingAttachments != null)
{
int nAttachmentIndex = 0;
for (final IAS4Attachment aIncomingAttachment : aIncomingAttachments)
{
final ReadAttachment a = new ReadAttachment ();
a.m_sID = aIncomingAttachment.getId ();
a.m_sMimeType = aIncomingAttachment.getMimeType ();
a.m_sUncompressedMimeType = aIncomingAttachment.getUncompressedMimeType ();
a.m_aCharset = aIncomingAttachment.getCharset ();
a.m_eCompressionMode = aIncomingAttachment.getCompressionMode ();
try (final InputStream aSIS = aIncomingAttachment.getSourceStream ())
{
final NonBlockingByteArrayOutputStream aBAOS = new NonBlockingByteArrayOutputStream ();
if (StreamHelper.copyInputStreamToOutputStreamAndCloseOS (aSIS, aBAOS).isSuccess ())
{
a.m_aPayloadBytes = aBAOS.getBufferOrCopy ();
}
}
catch (final IOException | AS4DecompressException ex)
{
// Fall through
}
if (a.m_aPayloadBytes == null)
{
final String sDetails = "Failed to decompress the payload of attachment #" + nAttachmentIndex;
LOGGER.error (sLogPrefix + sDetails);
aProcessingErrorMessages.add (EEbmsError.EBMS_DECOMPRESSION_FAILURE.errorBuilder (aDisplayLocale)
.refToMessageInError (sMessageID)
.errorDetail (sDetails)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
// Read data as SBDH
// Hint for production systems: this may take a huge amount of memory,
// if the payload is large
final ErrorList aSBDHErrors = new ErrorList ();
a.m_aSBDH = new SBDMarshaller ().setCollectErrors (aSBDHErrors).read (a.m_aPayloadBytes);
// Only fail if the first attachment is not an SBDH. The check for
// exactly 1 attachment comes below
if (nAttachmentIndex == 0 && a.m_aSBDH == null)
{
if (aSBDHErrors.isEmpty ())
{
final String sDetails = "Failed to read the provided SBDH document";
LOGGER.error (sLogPrefix + sDetails);
aProcessingErrorMessages.add (EEbmsError.EBMS_OTHER.errorBuilder (aDisplayLocale)
.refToMessageInError (sMessageID)
.errorDetail (sDetails)
.build ());
}
else
{
for (final IError aError : aSBDHErrors)
{
final String sDetails = "Peppol SBDH Issue: " + aError.getAsString (aDisplayLocale);
LOGGER.error (sLogPrefix + sDetails);
aProcessingErrorMessages.add (EEbmsError.EBMS_OTHER.errorBuilder (aDisplayLocale)
.refToMessageInError (sMessageID)
.errorDetail (sDetails)
.build ());
}
}
return AS4MessageProcessorResult.createFailure ();
}
aReadAttachments.add (a);
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix +
"AS4 Attachment " +
nAttachmentIndex +
" with ID [" +
a.m_sID +
"] uses [" +
a.m_sMimeType +
(a.m_sUncompressedMimeType == null ? null : " - uncompressed " + a.m_sUncompressedMimeType) +
"] and [" +
StringHelper.getToString (a.m_aCharset, "no charset") +
"] and length is " +
(a.m_aPayloadBytes == null ? "" : Integer.toString (a.m_aPayloadBytes.length)) +
" bytes" +
(a.m_eCompressionMode == null ? "" : " of compressed payload"));
nAttachmentIndex++;
}
}
if (aReadAttachments.size () != 1)
{
// In Peppol there must be exactly one payload
final String sDetails = "In Peppol exactly one payload attachment is expected. This request has " +
aReadAttachments.size () +
" attachments";
LOGGER.error (sLogPrefix + sDetails);
aProcessingErrorMessages.add (EEbmsError.EBMS_OTHER.errorBuilder (aDisplayLocale)
.refToMessageInError (aState.getMessageID ())
.errorDetail (sDetails)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
// The one and only
final ReadAttachment aReadAttachment = aReadAttachments.getFirstOrNull ();
// Extract Peppol values from SBD
final PeppolSBDHData aPeppolSBD;
try
{
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix + "Now evaluating the SBDH against Peppol rules");
// Interpret as Peppol SBDH and eventually perform consistency checks
final boolean bPerformValueChecks = aReceiverCheckData.isPerformSBDHValueChecks ();
final boolean bCheckForCountryC1 = aReceiverCheckData.isCheckSBDHForMandatoryCountryC1 ();
// Read with SimpleIdentifierFactory - accepts more the
// PeppolIdentifierFactory
final PeppolSBDHDocumentReader aReader = new PeppolSBDHDocumentReader (SimpleIdentifierFactory.INSTANCE).setPerformValueChecks (bPerformValueChecks)
.setCheckForCountryC1 (bCheckForCountryC1);
aPeppolSBD = aReader.extractData (aReadAttachment.standardBusinessDocument ());
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix +
"The provided SBDH is valid according to Peppol rules, with value checks being " +
(bPerformValueChecks ? "enabled" : "disabled"));
}
catch (final PeppolSBDHDocumentReadException ex)
{
final String sMsg = "Failed to extract the Peppol data from SBDH.";
LOGGER.error (sLogPrefix + sMsg, ex);
aProcessingErrorMessages.add (EEbmsError.EBMS_OTHER.errorBuilder (aDisplayLocale)
.refToMessageInError (aState.getMessageID ())
.errorDetail (sMsg, ex)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
if (aReceiverCheckData.isReceiverCheckEnabled ())
{
LOGGER.info (sLogPrefix + "Performing checks if the received data is registered in our SMP");
try
{
// Get the endpoint information required from the recipient
// Check if an endpoint is registered
final IParticipantIdentifier aReceiverID = aPeppolSBD.getReceiverAsIdentifier ();
final IDocumentTypeIdentifier aDocTypeID = aPeppolSBD.getDocumentTypeAsIdentifier ();
final IProcessIdentifier aProcessID = aPeppolSBD.getProcessAsIdentifier ();
final EndpointType aReceiverEndpoint = _getReceiverEndpoint (sLogPrefix,
aReceiverCheckData.getSMPClient (),
aReceiverID,
aDocTypeID,
aProcessID,
aReceiverCheckData.getWildcardSelectionMode ());
if (aReceiverEndpoint == null)
{
final String sMsg = "Failed to resolve SMP endpoint for provided receiver ID (" +
(aReceiverID == null ? "null" : aReceiverID.getURIEncoded ()) +
")/documentType ID (" +
(aDocTypeID == null ? "null" : aDocTypeID.getURIEncoded ()) +
")/process ID (" +
(aProcessID == null ? "null" : aProcessID.getURIEncoded ()) +
")/transport profile (" +
m_aTransportProfile.getID () +
") - not handling incoming AS4 document";
LOGGER.error (sLogPrefix + sMsg);
// the errorDetail MUST be set according to Peppol AS4 profile 2.2
aProcessingErrorMessages.add (EEbmsError.EBMS_OTHER.errorBuilder (aDisplayLocale)
.refToMessageInError (aState.getMessageID ())
.description (sMsg, aDisplayLocale)
.errorDetail ("PEPPOL:NOT_SERVICED")
.build ());
return AS4MessageProcessorResult.createFailure ();
}
// Check if the message is for us
_checkIfReceiverEndpointURLMatches (sLogPrefix, aReceiverCheckData.getAS4EndpointURL (), aReceiverEndpoint);
// Get the recipient certificate from the SMP
_checkIfEndpointCertificateMatches (sLogPrefix, aReceiverCheckData.getAPCertificate (), aReceiverEndpoint);
}
catch (final Phase4Exception ex)
{
final String sMsg = "The addressing data contained in the SBDH could not be verified";
LOGGER.error (sLogPrefix + sMsg, ex);
aProcessingErrorMessages.add (EEbmsError.EBMS_OTHER.errorBuilder (aDisplayLocale)
.refToMessageInError (aState.getMessageID ())
.errorDetail (sMsg, ex)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
}
else
{
LOGGER.info (sLogPrefix + "Endpoint checks for incoming AS4 messages are disabled");
}
// Receiving checks are positively done
if (m_aHandlers.isEmpty ())
{
// Oops - programming error
LOGGER.error (sLogPrefix + "No SPI handler is present - the message is unhandled and discarded!");
}
else
{
// Now start invoking SPI handlers
for (final IPhase4PeppolIncomingSBDHandlerSPI aHandler : m_aHandlers)
{
try
{
if (LOGGER.isDebugEnabled ())
LOGGER.debug (sLogPrefix + "Invoking Peppol handler " + aHandler);
aHandler.handleIncomingSBD (aMessageMetadata,
aHttpHeaders.getClone (),
aUserMessage.clone (),
aReadAttachment.payloadBytes (),
aReadAttachment.standardBusinessDocument (),
aPeppolSBD,
aState,
aProcessingErrorMessages);
}
catch (final Exception ex)
{
final String sDetails = "The incoming Peppol message could not be processed.";
LOGGER.error (sLogPrefix + sDetails, ex);
aProcessingErrorMessages.add (EEbmsError.EBMS_OTHER.errorBuilder (aDisplayLocale)
.refToMessageInError (aState.getMessageID ())
.errorDetail (sDetails, ex)
.build ());
return AS4MessageProcessorResult.createFailure ();
}
}
// Trigger post-processing, e.g. for reporting
afterSuccessfulPeppolProcessing (aUserMessage, aPeppolSBD, aState);
}
return AS4MessageProcessorResult.createSuccess ();
}
@Nonnull
@UnsupportedOperation
public AS4SignalMessageProcessorResult processAS4SignalMessage (@Nonnull final IAS4IncomingMessageMetadata aMessageMetadata,
@Nonnull final HttpHeaderMap aHttpHeaders,
@Nonnull final Ebms3SignalMessage aSignalMessage,
@Nullable final IPMode aPMode,
@Nonnull final IAS4IncomingMessageState aState,
@Nonnull final ICommonsList aProcessingErrorMessages)
{
LOGGER.error ("Invoking processAS4SignalMessage is not supported");
throw new UnsupportedOperationException ();
}
public void processAS4ResponseMessage (@Nonnull final IAS4IncomingMessageMetadata aMessageMetadata,
@Nonnull final IAS4IncomingMessageState aState,
@Nonnull @Nonempty final String sResponseMessageID,
@Nullable final byte [] aResponseBytes,
final boolean bResponsePayloadIsAvailable)
{}
}