OFCondition RetrieveDICOMFilesFromPACS::acceptSubAssociation(T_ASC_Network *associationNetwork, T_ASC_Association **association) { const char *knownAbstractSyntaxes[] = { UID_VerificationSOPClass }; const char *transferSyntaxes[] = { NULL, NULL, NULL, NULL }; int numTransferSyntaxes; OFCondition condition = ASC_receiveAssociation(associationNetwork, association, ASC_DEFAULTMAXPDU); if (condition.good()) { #ifndef DISABLE_COMPRESSION_EXTENSION // Si disposem de compressió la demanem, i podrem accelerar el temps de descàrrega considerablement // De moment demanem la compressió lossless que tot PACS que suporti compressió ha // de proporcionar: JPEGLossless:Non-Hierarchical-1stOrderPrediction transferSyntaxes[0] = UID_JPEGProcess14SV1TransferSyntax; transferSyntaxes[1] = UID_LittleEndianExplicitTransferSyntax; transferSyntaxes[2] = UID_BigEndianExplicitTransferSyntax; transferSyntaxes[3] = UID_LittleEndianImplicitTransferSyntax; numTransferSyntaxes = 4; #else // Defined in dcxfer.h if (gLocalByteOrder == EBO_LittleEndian) { transferSyntaxes[0] = UID_LittleEndianExplicitTransferSyntax; transferSyntaxes[1] = UID_BigEndianExplicitTransferSyntax; } else { transferSyntaxes[0] = UID_BigEndianExplicitTransferSyntax; transferSyntaxes[1] = UID_LittleEndianExplicitTransferSyntax; } transferSyntaxes[2] = UID_LittleEndianImplicitTransferSyntax; numTransferSyntaxes = 3; #endif // Accept the Verification SOP Class if presented condition = ASC_acceptContextsWithPreferredTransferSyntaxes((*association)->params, knownAbstractSyntaxes, DIM_OF(knownAbstractSyntaxes), transferSyntaxes, numTransferSyntaxes); if (condition.good()) { // The array of Storage SOP Class UIDs comes from dcuid.h condition = ASC_acceptContextsWithPreferredTransferSyntaxes((*association)->params, dcmAllStorageSOPClassUIDs, numberOfAllDcmStorageSOPClassUIDs, transferSyntaxes, numTransferSyntaxes); } } if (condition.good()) { condition = ASC_acknowledgeAssociation(*association); } else { ASC_dropAssociation(*association); ASC_destroyAssociation(association); } return condition; }
void Association::Destroy() { OFCondition cond = ASC_destroyAssociation(&assoc); dcmNet = NULL; assoc = NULL; msgId = 0; presId = 0; sopClass[0] = 0; sopInstance[0] = 0; }
void Association ::abort() { if(!this->is_associated()) { throw Exception("Not associated"); } ASC_abortAssociation(this->_association); ASC_destroyAssociation(&this->_association); this->_association = NULL; }
void Association ::release() { if(!this->is_associated()) { throw Exception("Not associated"); } ASC_releaseAssociation(this->_association); ASC_destroyAssociation(&this->_association); this->_association = NULL; }
void Association ::drop() { if(!this->is_associated()) { throw Exception("Not associated"); } ASC_acknowledgeRelease(this->_association); ASC_dropSCPAssociation(this->_association); ASC_destroyAssociation(&this->_association); this->_association = NULL; }
OFCondition AssociationCleanup(T_ASC_Association *assoc) { OFString temp_str; OFCondition cond = ASC_dropSCPAssociation(assoc); if (cond.bad()) { LOG(FATAL) << cond.text(); return cond; } cond = ASC_destroyAssociation(&assoc); if (cond.bad()) { LOG(FATAL) << cond.text(); return cond; } return cond; }
void PACSConnection::disconnect() { OFCondition condition = ASC_releaseAssociation(m_dicomAssociation); if (condition.bad()) { ERROR_LOG("No s'ha pogut desconnectar del PACS, descripcio error: " + QString(condition.text())); } condition = ASC_destroyAssociation(&m_dicomAssociation); if (condition.bad()) { ERROR_LOG("Error al destruir la connexio amb el PACS, descripcio error: " + QString(condition.text())); } // Destrueix l'objecte i tanca el socket obert, fins que no es fa el drop de l'objecte no es tanca el socket condition = ASC_dropNetwork(&m_associationNetwork); if (condition.bad()) { ERROR_LOG("Error al tancar el port de connexions entrants, descripcio error: " + QString(condition.text())); } }
OFCondition RetrieveDICOMFilesFromPACS::subOperationSCP(T_ASC_Association **subAssociation) { // Ens convertim com en un servei. El PACS ens fa peticions que nosaltres hem de respondre, ens pot demanar descarregar una imatge o fer un echo T_DIMSE_Message dimseMessage; T_ASC_PresentationContextID presentationContextID; if (!ASC_dataWaiting(*subAssociation, 0)) { return DIMSE_NODATAAVAILABLE; } OFCondition condition = DIMSE_receiveCommand(*subAssociation, DIMSE_BLOCKING, 0, &presentationContextID, &dimseMessage, NULL); if (condition == EC_Normal) { switch (dimseMessage.CommandField) { case DIMSE_C_STORE_RQ: condition = storeSCP(*subAssociation, &dimseMessage, presentationContextID); break; case DIMSE_C_ECHO_RQ: condition = echoSCP(*subAssociation, &dimseMessage, presentationContextID); break; default: ERROR_LOG("El PACS ens ha sol.licitat un tipus d'operacio invalida"); condition = DIMSE_BADCOMMANDTYPE; break; } } // Clean up on association termination if (condition == DUL_PEERREQUESTEDRELEASE) { INFO_LOG("El PACS sol.licita tancar la connexio per on ens ha enviat els fitxers"); condition = ASC_acknowledgeRelease(*subAssociation); ASC_dropSCPAssociation(*subAssociation); ASC_destroyAssociation(subAssociation); return condition; } else if (condition == DUL_PEERABORTEDASSOCIATION) { INFO_LOG("El PACS ha abortat la connexió"); } else if (condition != EC_Normal) { ERROR_LOG("S'ha produit un error reben la peticio d'una suboperacio, descripcio error: " + QString(condition.text())); condition = ASC_abortAssociation(*subAssociation); } else if (m_abortIsRequested) { INFO_LOG("Abortarem les connexions amb el PACS, perque han sol.licitant cancel.lar la descarrega"); condition = ASC_abortAssociation(*subAssociation); if (!condition.good()) { ERROR_LOG("Error al abortar la connexio pel qual rebem les imatges" + QString(condition.text())); } // Tanquem la connexió amb el PACS perquè segons indica la documentació DICOM al PS 3.4 (Baseline Behavior of SCP) C.4.2.3.1 si abortem // la connexió per la qual rebem les imatges, el comportament del PACS és desconegut, per exemple DCM4CHEE tanca la connexió amb el PACS, però // el RAIM_Server no la tanca i la manté fent que no sortim mai d'aquesta classe. Degut a que no es pot saber en aquesta situació com actuaran // els PACS es tanca aquí la connexió amb el PACS. condition = ASC_abortAssociation(m_pacsConnection->getConnection()); if (!condition.good()) { ERROR_LOG("Error al abortar la connexio pel amb el PACS" + QString(condition.text())); } else { INFO_LOG("Abortada la connexio amb el PACS"); } } if (condition != EC_Normal) { ASC_dropAssociation(*subAssociation); ASC_destroyAssociation(subAssociation); } return condition; }
void QtDcmServersDicomSettingsWidget::sendEcho() { if ( !treeWidget->currentItem() ) { return; } QtDcmPreferences* prefs = QtDcmPreferences::instance(); const QString aet = prefs->aetitle(); const QString serverAet = treeWidget->currentItem()->data ( 1, 1 ).toString(); const QString hostname = prefs->hostname(); const QString serverHostname = treeWidget->currentItem()->data ( 3, 1 ).toString(); const QString serverPort = treeWidget->currentItem()->data ( 2, 1 ).toString(); T_ASC_Network *net = 0; // network struct, contains DICOM upper layer FSM etc. OFCondition cond = ASC_initializeNetwork ( NET_REQUESTOR, 0, 30 /* timeout */, &net ); if ( cond != EC_Normal ) { QMessageBox msgBox( QApplication::activeWindow() ); msgBox.setIcon ( QMessageBox::Critical ); msgBox.setText ( "Cannot initialize network" ); msgBox.exec(); ASC_dropNetwork ( &net ); return; } QTcpSocket * socket = new QTcpSocket(this); socket->connectToHost(serverHostname, serverPort.toInt()); if (!socket->waitForConnected(1000)) { QMessageBox msgBox( QApplication::activeWindow() ); msgBox.setIcon ( QMessageBox::Information ); msgBox.setText ( "Cannot connect to server " + serverHostname + " on port " + serverPort + " !" ); msgBox.exec(); ASC_dropNetwork ( &net ); return; } socket->disconnectFromHost(); delete socket; T_ASC_Parameters *params; // parameters of association request cond = ASC_createAssociationParameters ( ¶ms, ASC_DEFAULTMAXPDU ); // set calling and called AE titles cond = ASC_setAPTitles ( params, aet.toUtf8().data(), serverAet.toUtf8().data(), NULL ); // the DICOM server accepts connections at server.nowhere.com port 104 cond = ASC_setPresentationAddresses ( params, hostname.toUtf8().data(), QString ( serverHostname + ":" + serverPort ).toLatin1().data() ); // list of transfer syntaxes, only a single entry here const char* ts[] = { UID_LittleEndianImplicitTransferSyntax }; // add presentation context to association request cond = ASC_addPresentationContext ( params, 1, UID_VerificationSOPClass, ts, 1 ); // request DICOM association T_ASC_Association *assoc = 0; if ( ASC_requestAssociation ( net, params, &assoc ).good() ) { if ( ASC_countAcceptedPresentationContexts ( params ) == 1 ) { // the remote SCP has accepted the Verification Service Class DIC_US id = assoc->nextMsgID++; // generate next message ID DIC_US status; // DIMSE status of C-ECHO-RSP will be stored here DcmDataset *sd = NULL; // status detail will be stored here // send C-ECHO-RQ and handle response DIMSE_echoUser ( assoc, id, DIMSE_BLOCKING, 0, &status, &sd ); delete sd; // we don't care about status detail QMessageBox msgBox( QApplication::activeWindow() ); msgBox.setIcon ( QMessageBox::Information ); msgBox.setText ( "Echo request successful !" ); msgBox.exec(); } else { QMessageBox msgBox( QApplication::activeWindow() ); msgBox.setIcon ( QMessageBox::Critical ); msgBox.setText ( "Wrong presentation context, echo request failed" ); msgBox.exec(); } } else { QMessageBox msgBox( QApplication::activeWindow() ); msgBox.setIcon ( QMessageBox::Critical ); msgBox.setText ( "Wrong dicom association, echo request failed" ); msgBox.exec(); } ASC_releaseAssociation ( assoc ); // release association ASC_destroyAssociation ( &assoc ); // delete assoc structure ASC_dropNetwork ( &net ); // delete net structure net = 0; assoc = 0; }
bool echoscu(const QString &peerTitle, const QString &ourTitle, const QString &hostname, int port, QString &msg) { T_ASC_Network *net; T_ASC_Parameters *params; T_ASC_Association *assoc; OFString temp_str; bool ret = false; #ifdef HAVE_WINSOCK_H WSAData winSockData; /* we need at least version 1.1 */ WORD winSockVersionNeeded = MAKEWORD( 1, 1 ); WSAStartup(winSockVersionNeeded, &winSockData); #endif /* initialize network, i.e. create an instance of T_ASC_Network*. */ OFCondition cond = ASC_initializeNetwork(NET_REQUESTOR, 0, 6, &net); if (cond.bad()) { DimseCondition::dump(temp_str, cond); msg = QString::fromLatin1(temp_str.c_str()); goto cleanup; } /* initialize asscociation parameters, i.e. create an instance of T_ASC_Parameters*. */ cond = ASC_createAssociationParameters(¶ms, ASC_DEFAULTMAXPDU); if (cond.bad()) { DimseCondition::dump(temp_str, cond); msg = QString::fromLatin1(temp_str.c_str()); goto cleanup; } ASC_setAPTitles(params, ourTitle.toLocal8Bit().data(), peerTitle.toLocal8Bit().data(), NULL); /* Set the transport layer type (type of network connection) in the params */ /* strucutre. The default is an insecure connection; where OpenSSL is */ /* available the user is able to request an encrypted,secure connection. */ cond = ASC_setTransportLayerType(params, OFFalse); if (cond.bad()) { DimseCondition::dump(temp_str, cond); msg = QString::fromLatin1(temp_str.c_str()); goto cleanup; } /* Figure out the presentation addresses and copy the */ /* corresponding values into the association parameters.*/ DIC_NODENAME localHost; DIC_NODENAME peerHost; gethostname(localHost, sizeof(localHost) - 1); sprintf(peerHost, "%s:%d", hostname.toLocal8Bit().data(), port); ASC_setPresentationAddresses(params, localHost, peerHost); /* Set the presentation contexts which will be negotiated */ /* when the network connection will be established */ int presentationContextID = 1; /* odd byte value 1, 3, 5, .. 255 */ for (unsigned long ii=0; ii<1; ii++) { cond = ASC_addPresentationContext(params, presentationContextID, UID_VerificationSOPClass, transferSyntaxes, 3); presentationContextID += 2; if (cond.bad()) { DimseCondition::dump(temp_str, cond); msg = QString::fromLatin1(temp_str.c_str()); goto cleanup; } } /* create association, i.e. try to establish a network connection to another */ /* DICOM application. This call creates an instance of T_ASC_Association*. */ cond = ASC_requestAssociation(net, params, &assoc); if (cond.bad()) { if (cond == DUL_ASSOCIATIONREJECTED) { T_ASC_RejectParameters rej; ASC_getRejectParameters(params, &rej); ASC_printRejectParameters(temp_str, &rej); msg = QString("Association Rejected: %1").arg(temp_str.c_str()); goto cleanup; } else { DimseCondition::dump(temp_str, cond); msg = QString("Association Request Failed: %1").arg(temp_str.c_str()); goto cleanup; } } /* count the presentation contexts which have been accepted by the SCP */ /* If there are none, finish the execution */ if (ASC_countAcceptedPresentationContexts(params) == 0) { msg = QString("No Acceptable Presentation Contexts"); goto cleanup; } /* do the real work, i.e. send a number of C-ECHO-RQ messages to the DICOM application */ /* this application is connected with and handle corresponding C-ECHO-RSP messages. */ DIC_US msgId = assoc->nextMsgID++; DIC_US status; DcmDataset *statusDetail = NULL; /* send C-ECHO-RQ and handle response */ cond = DIMSE_echoUser(assoc, msgId, DIMSE_BLOCKING, 0, &status, &statusDetail); /* check for status detail information, there should never be any */ if (statusDetail != NULL) { delete statusDetail; } /* tear down association, i.e. terminate network connection to SCP */ if (cond == EC_Normal) { cond = ASC_releaseAssociation(assoc); ret = true; } else if (cond == DUL_PEERABORTEDASSOCIATION) { } else { DimseCondition::dump(temp_str, cond); msg = QString::fromLatin1(temp_str.c_str()); cond = ASC_abortAssociation(assoc); } cleanup: /* destroy the association, i.e. free memory of T_ASC_Association* structure. This */ /* call is the counterpart of ASC_requestAssociation(...) which was called above. */ cond = ASC_destroyAssociation(&assoc); /* drop the network, i.e. free memory of T_ASC_Network* structure. This call */ /* is the counterpart of ASC_initializeNetwork(...) which was called above. */ cond = ASC_dropNetwork(&net); #ifdef HAVE_WINSOCK_H WSACleanup(); #endif return ret; }