/// <summary>
/// Creates an instance of <see cref="ImportFilesContext"/> to be used
/// by <see cref="ImportFilesUtility"/>
/// </summary>
protected ImportFilesContext(string sourceAE, StorageConfiguration configuration, EventSource auditSource)
{
StudyWorkItems = new ObservableDictionary <string, WorkItem>();
FailedStudyAudits = new Dictionary <string, string>();
SourceAE = sourceAE;
StorageConfiguration = configuration;
AuditSource = auditSource;
ExpirationDelaySeconds = WorkItemServiceSettings.Default.ExpireDelaySeconds;
}
/// <summary>
/// Generates a "Dicom Instances Accessed" update event in the audit log (with ActionCode of Delete), according to DICOM Supplement 95.
/// </summary>
/// <remarks>
/// This method automatically separates different patients into separately logged events, as required by DICOM.
///
/// We chose to impleemnt the DicomInstancesAccessed audit log, as opposed to the DicomStudyDeleted audit message because the whole
/// study isn't being deleted, just a series.
/// </remarks>
/// <param name="aeTitles">The application entities from which the instances were accessed.</param>
/// <param name="instances">The studies that the series belong that are being deleted.</param>
/// <param name="eventSource">The source user or application entity which invoked the operation.</param>
/// <param name="eventResult">The result of the operation.</param>
public static void LogDeleteSeries(IEnumerable <string> aeTitles, AuditedInstances instances, EventSource eventSource, EventResult eventResult)
{
if (!AuditingEnabled)
{
return;
}
try
{
var aeTitlesArray = ToArray(aeTitles);
foreach (var patient in instances.EnumeratePatients())
{
var auditHelper = new DicomInstancesAccessedAuditHelper(eventSource, eventResult, EventIdentificationContentsEventActionCode.D);
auditHelper.AddUser(eventSource);
if (aeTitlesArray.Length > 0)
{
auditHelper.AddUser(new AuditProcessActiveParticipant(aeTitlesArray));
}
auditHelper.AddPatientParticipantObject(patient);
foreach (var study in instances.EnumerateStudies(patient))
{
auditHelper.AddStudyParticipantObject(study);
}
Log(auditHelper);
}
}
catch (Exception ex)
{
Platform.Log(LogLevel.Warn, ex, _messageAuditFailed);
}
}
/// <summary>
/// Generates a "Dicom Study Deleted" event in the audit log, according to DICOM Supplement 95.
/// </summary>
/// <remarks>
/// This method automatically separates different patients into separately logged events, as required by DICOM.
/// </remarks>
/// <param name="aeTitle">The application entity from which the instances were deleted.</param>
/// <param name="instances">The studies that were deleted.</param>
/// <param name="eventSource">The source user or application entity which invoked the operation.</param>
/// <param name="eventResult">The result of the operation.</param>
public static void LogDeleteStudies(string aeTitle, AuditedInstances instances, EventSource eventSource, EventResult eventResult)
{
if (!AuditingEnabled)
{
return;
}
try
{
foreach (var patient in instances.EnumeratePatients())
{
var auditHelper = new DicomStudyDeletedAuditHelper(eventSource, eventResult);
auditHelper.AddUserParticipant(eventSource);
auditHelper.AddUserParticipant(new AuditProcessActiveParticipant(aeTitle));
auditHelper.AddPatientParticipantObject(patient);
foreach (var study in instances.EnumerateStudies(patient))
{
auditHelper.AddStudyParticipantObject(study);
}
Log(auditHelper);
}
}
catch (Exception ex)
{
Platform.Log(LogLevel.Warn, ex, _messageAuditFailed);
}
}
/// <summary>
/// Generates a "Data Export" event in the audit log, according to DICOM Supplement 95.
/// </summary>
/// <remarks>
/// One audit event is generated for each file system volume to which data is exported.
/// If the audited instances are not on a file system, a single event is generated with an empty media identifier.
/// </remarks>
/// <param name="instances">The files that were exported.</param>
/// <param name="eventSource">The source user or application entity which invoked the operation.</param>
/// <param name="currentAE">The current DICOM AE performing the operation.</param>
/// <param name="eventResult">The result of the operation.</param>
public static void LogExportStudies(AuditedInstances instances, EventSource eventSource, EventSource currentAE, EventResult eventResult)
{
if (!AuditingEnabled)
{
return;
}
try
{
var fileVolumes = new List <string>(instances.EnumerateFileVolumes());
if (fileVolumes.Count == 0)
{
fileVolumes.Add(string.Empty);
}
foreach (var volume in fileVolumes)
{
var auditHelper = new DataExportAuditHelper(eventSource, eventResult, volume);
auditHelper.AddExporter(eventSource);
if (eventSource != currentAE)
{
auditHelper.AddExporter(currentAE);
}
foreach (var patient in instances.EnumeratePatients())
{
auditHelper.AddPatientParticipantObject(patient);
}
foreach (var study in instances.EnumerateStudies())
{
auditHelper.AddStudyParticipantObject(study);
}
Log(auditHelper);
}
}
catch (Exception ex)
{
Platform.Log(LogLevel.Warn, ex, _messageAuditFailed);
}
}
/// <summary>
/// Generates a "DICOM Instances Transferred" received event in the audit log, according to DICOM Supplement 95.
/// </summary>
/// <remarks>
/// This method automatically separates different patients into separately logged events, as required by DICOM.
/// </remarks>
/// <param name="localAETitle">The local application entity to which the transfer was completed.</param>
/// <param name="remoteAETitle">The application entity from which the transfer was completed.</param>
/// <param name="remoteHostName">The hostname of the application entity from which the transfer was completed.</param>
/// <param name="instances">The studies that were transferred.</param>
/// <param name="eventSource">The source user or application entity which invoked the operation.</param>
/// <param name="eventResult">The result of the operation.</param>
/// <param name="action">The action taken on the studies that were transferred.</param>
public static void LogReceivedInstances(string localAETitle, string remoteAETitle, string remoteHostName, AuditedInstances instances, EventSource eventSource, EventResult eventResult, EventReceiptAction action)
{
if (!AuditingEnabled)
{
return;
}
try
{
foreach (var patient in instances.EnumeratePatients())
{
var auditHelper = new DicomInstancesTransferredAuditHelper(eventSource, eventResult, action,
remoteAETitle ?? localAETitle, remoteHostName ?? LocalHostname, localAETitle, LocalHostname);
foreach (var study in instances.EnumerateStudies(patient))
{
auditHelper.AddStudyParticipantObject(study);
}
Log(auditHelper);
}
}
catch (Exception ex)
{
Platform.Log(LogLevel.Warn, ex, _messageAuditFailed);
}
}
/// <summary>
/// Generates an (issued) "Query" event in the audit log, according to DICOM Supplement 95.
/// </summary>
/// <param name="localAETitle">The local application entity making the query.</param>
/// <param name="remoteAETitle">The application entity on which the query is taking place.</param>
/// <param name="remoteHostName">The hostname of the application entity on which the query is taking place.</param>
/// <param name="eventSource">The source user or application entity which invoked the operation.</param>
/// <param name="currentAE">The current DICOM AE performing the operation.</param>
/// <param name="eventResult">The result of the operation.</param>
/// <param name="sopClassUid">The SOP Class Uid of the type of DICOM Query being issued</param>
/// <param name="ds">The dataset containing the DICOM query being issued</param>
public static void LogQueryIssued(string localAETitle, string remoteAETitle, string remoteHostName, EventSource eventSource, EventSource currentAE, EventResult eventResult, string sopClassUid, DicomAttributeCollection ds)
{
if (!AuditingEnabled)
{
return;
}
try
{
var auditHelper = new QueryAuditHelper(eventSource, eventResult,
localAETitle, LocalHostname, remoteAETitle ?? localAETitle,
remoteHostName ?? LocalHostname,
sopClassUid, ds);
if (eventSource != currentAE)
{
auditHelper.AddOtherParticipant(currentAE);
}
Log(auditHelper);
}
catch (Exception ex)
{
Platform.Log(LogLevel.Warn, ex, _messageAuditFailed);
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="sourceAE">The local AE title of the application importing the studies.</param>
/// <param name="configuration">The storage configuration. </param>
/// <param name="auditSource">The source of the import. </param>
public ImportStudyContext(string sourceAE, StorageConfiguration configuration, EventSource auditSource)
: base(sourceAE, configuration, auditSource)
{
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="sourceAE">The AE title of the remote application sending the SOP Instances.</param>
/// <param name="configuration">Storage configuration. </param>
/// <param name="hostname">The IP Address the remote app is connecting with.</param>
/// <param name="auditSource">The source of the request for auditing purposes </param>
public DicomReceiveImportContext(string sourceAE, string hostname, StorageConfiguration configuration, EventSource auditSource) : base(sourceAE, configuration, auditSource)
{
// TODO (CR Jun 2012 - Med): This object is disposable and should be cleaned up.
_monitor = WorkItemActivityMonitor.Create(false);
_monitor.WorkItemsChanged += WorkItemsChanged;
var serverList = ServerDirectory.GetRemoteServersByAETitle(sourceAE);
if (serverList.Count == 1)
{
_dicomServerNode = CollectionUtils.FirstElement(serverList);
}
_hostname = hostname;
}
private EventSource(DicomEventSource source)
{
_source = source;
}
/// <summary>
/// Gets a user event source when the specified user is the source of the auditable event.
/// </summary>
/// <param name="userName">The username of the source.</param>
public static DicomEventSource GetUserEventSource(string userName)
{
return(DicomEventSource.GetUserEventSource(userName));
}
/// <summary>
/// Gets a generic event source for other sources of auditable events.
/// </summary>
/// <param name="otherSourceName">The name of the source.</param>
public static DicomEventSource GetOtherEventSource(string otherSourceName)
{
return(DicomEventSource.GetOtherEventSource(otherSourceName));
}