protected void Page_Load(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(IsAuthorized))
{
if (Context.Items["Authorized"] == null || !Context.Items["Authorized"].Equals("true"))
{
Server.Transfer("~/Pages/Error/WebViewerAuthorizationErrorPage.aspx");
}
else
{
IsAuthorized = "true";
}
}
if (string.IsNullOrEmpty(WebViewerInitString))
{
WebViewerInitString = Request.Params[ImageServerConstants.WebViewerQueryStrings.WebViewerInitParams];
}
//Extract the WebViewer Init Parameters for retreiving studies
var initParams = new WebViewerInitParams();
string[] vals = HttpUtility.UrlDecode(WebViewerInitString).Split(new[] { '?', ';', '=', ',', '&' });
for (int i = 0; i < vals.Length - 1; i++)
{
if (String.IsNullOrEmpty(vals[i]))
{
continue;
}
if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.Study))
{
i++;
initParams.StudyInstanceUids.Add(vals[i]);
}
else if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.PatientID))
{
i++;
initParams.PatientIds.Add(vals[i]);
}
else if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.AeTitle))
{
i++;
initParams.AeTitle = vals[i];
}
else if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.AccessionNumber))
{
i++;
initParams.AccessionNumbers.Add(vals[i]);
}
}
SearchPanel.InitParams = initParams;
SearchPanel.Username = Context.Items[ImageServerConstants.WebViewerQueryStrings.Username] as String;
SearchPanel.SessionId = Context.Items[ImageServerConstants.WebViewerStartupParameters.Session] as String;
}
private static void ValidateParameters(WebViewerInitParams parameters)
{
if (parameters == null)
{
throw new Exception("Parameters are missing");
}
// According to the techinical document, AE Title is optional
//
// if (string.IsNullOrEmpty(parameters.AeTitle.Trim()))
// {
// throw new Exception("'aetitle' cannot be empty");
// }
if (parameters.AccessionNumbers != null)
{
foreach (var value in parameters.AccessionNumbers)
{
if (string.IsNullOrEmpty(value.Trim()))
{
throw new Exception("'accession' is specified but contain an empty value");
}
}
}
if (parameters.PatientIds != null)
{
foreach (var value in parameters.PatientIds)
{
if (string.IsNullOrEmpty(value.Trim()))
{
throw new Exception("'patientid' is specified but contain an empty value");
}
}
}
if (parameters.StudyInstanceUids != null)
{
foreach (var value in parameters.StudyInstanceUids)
{
if (string.IsNullOrEmpty(value.Trim()))
{
throw new Exception("'study' is specified but contain an empty value");
}
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
UserID = Request.Params[ImageServerConstants.WebViewerQueryStrings.Username];
Password = Request.Params[ImageServerConstants.WebViewerQueryStrings.Password];
AppName = Request.Params[ImageServerConstants.WebViewerQueryStrings.ApplicationName];
ListStudies = Request.Params[ImageServerConstants.WebViewerQueryStrings.ListStudies];
WebViewerInitString = Request.Params[ImageServerConstants.WebViewerQueryStrings.WebViewerInitParams];
//Try to authenticate the user
if (!string.IsNullOrEmpty(UserID) && !string.IsNullOrEmpty(Password))
{
if (String.IsNullOrEmpty(AppName))
{
int start = WebViewerInitString.IndexOf(ImageServerConstants.WebViewerQueryStrings.ApplicationName + "=");
if (start < 0)
{
AppName = ImageServerConstants.DefaultApplicationName;
}
else
{
start += (ImageServerConstants.WebViewerQueryStrings.ApplicationName + "=").Length;
AppName = WebViewerInitString.Substring(start);
int end = AppName.IndexOf(',');
AppName = AppName.Substring(0, end);
if (string.IsNullOrEmpty(AppName))
{
AppName = ImageServerConstants.DefaultApplicationName;
}
}
}
AppName = String.Format("{0}@{1}", AppName, HttpContext.Current.Request.UserHostName);
try
{
using (LoginService service = new LoginService())
{
SessionInfo session = service.Login(UserID, Password, AppName);
Platform.Log(LogLevel.Info, "[{0}]: {1} has successfully logged in.", AppName, UserID);
WebViewerInitString += string.Format(",{0}={1},{2}={3}",
ImageServerConstants.WebViewerQueryStrings.Username, UserID,
ImageServerConstants.WebViewerQueryStrings.Session,
session.Credentials.SessionToken.Id);
//_sessionId = session.Credentials.SessionToken.Id;
//Add the session information to the context in case we redirect to the studies page.
//We need these to properly launch the WebViewer
Context.Items.Add(ImageServerConstants.WebViewerQueryStrings.Username, UserID);
Context.Items.Add(ImageServerConstants.WebViewerQueryStrings.Session, session.Credentials.SessionToken.Id);
Context.Items.Add("Authorized", false);
foreach (string role in session.Credentials.Authorities)
{
if (role.Equals(Macro.ImageServer.Enterprise.Authentication.AuthorityTokens.Study.ViewImages))
{
Context.Items["Authorized"] = "true";
break;
}
}
}
}
catch (PasswordExpiredException)
{
Platform.Log(LogLevel.Info, "[{0}]: {1} encountered PasswordExpiredException.", AppName, UserID);
Server.Transfer(ImageServerConstants.PageURLs.WebViewerAuthorizationErrorPage, true);
}
catch (UserAccessDeniedException)
{
Platform.Log(LogLevel.Info, "[{0}]: {1} encountered UserAccessDeniedException.", AppName, UserID);
Server.Transfer(ImageServerConstants.PageURLs.WebViewerAuthorizationErrorPage, true);
}
catch (Exception ex)
{
Platform.Log(LogLevel.Info, "[{0}]: {1} encountered exception {2} - {3}.", AppName, UserID, ex.GetType(), ex.Message);
Server.Transfer(ImageServerConstants.PageURLs.WebViewerAuthorizationErrorPage, true);
}
if (!string.IsNullOrEmpty(ListStudies) && ListStudies.Equals("true"))
{
//Extract the WebViewer Init Parameters to determine whether or not we need
//to redirect to the Studies page.
var initParams = new WebViewerInitParams();
string[] vals = HttpUtility.UrlDecode(WebViewerInitString).Split(new[] { '?', ';', '=', ',', '&' });
for (int i = 0; i < vals.Length - 1; i++)
{
if (String.IsNullOrEmpty(vals[i]))
{
continue;
}
if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.Study))
{
i++;
initParams.StudyInstanceUids.Add(vals[i]);
}
else if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.PatientID))
{
i++;
initParams.PatientIds.Add(vals[i]);
}
else if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.AeTitle))
{
i++;
initParams.AeTitle = vals[i];
}
else if (vals[i].Equals(ImageServerConstants.WebViewerStartupParameters.AccessionNumber))
{
i++;
initParams.AccessionNumbers.Add(vals[i]);
}
}
//Check if there are multiple studies to be displayed.
var controller = new StudyController();
var partitionAdapter = new ServerPartitionDataAdapter();
var partitionCriteria = new ServerPartitionSelectCriteria();
StudySelectCriteria studyCriteria;
ServerPartition partition = null;
int studyCount = 0;
if (!string.IsNullOrEmpty(initParams.AeTitle))
{
partitionCriteria.AeTitle.EqualTo(initParams.AeTitle);
IList <ServerPartition> partitions = partitionAdapter.GetServerPartitions(partitionCriteria);
//TODO: What if the AE Title is invalid?
if (partitions.Count == 1)
{
partition = partitions[0];
}
}
//TODO: The logic below is very weird.
foreach (string patientId in initParams.PatientIds)
{
studyCriteria = new StudySelectCriteria();
if (partition != null)
{
studyCriteria.ServerPartitionKey.EqualTo(partition.Key);
}
SetStringCondition(studyCriteria.PatientId, patientId);
studyCount += controller.GetStudyCount(studyCriteria);
}
if (studyCount < 2)
{
foreach (string accession in initParams.AccessionNumbers)
{
studyCriteria = new StudySelectCriteria();
if (partition != null)
{
studyCriteria.ServerPartitionKey.EqualTo(partition.Key);
}
SetStringCondition(studyCriteria.AccessionNumber, accession);
// TODO: studyCount is either 0 or 1 entering this block. If the same study is found, studyCount is incremented to 2, which is wrong
studyCount += controller.GetStudyCount(studyCriteria);
}
}
if (studyCount < 2 && initParams.StudyInstanceUids.Count > 0)
{
studyCriteria = new StudySelectCriteria();
if (partition != null)
{
studyCriteria.ServerPartitionKey.EqualTo(partition.Key);
}
studyCriteria.StudyInstanceUid.In(initParams.StudyInstanceUids);
// TODO: studyCount is either 0 or 1 entering this block. If the same study is found, studyCount is incremented to 2, which is wrong
studyCount += controller.GetStudyCount(studyCriteria);
}
if (studyCount > 1)
{
Server.Transfer(ImageServerConstants.PageURLs.WebViewerStudiesPage, true);
}
}
if (string.IsNullOrEmpty(WebViewerInitString))
{
Response.Redirect(ImageServerConstants.PageURLs.WebViewerDefaultPage, true);
}
else
{
Response.Redirect(ImageServerConstants.PageURLs.WebViewerDefaultPage + "?" + ImageServerConstants.WebViewerQueryStrings.WebViewerInitParams + "=" + WebViewerInitString, true);
}
}
else
{
Server.Transfer(ImageServerConstants.PageURLs.WebViewerAuthorizationErrorPage, true);
}
}
private static IList <StudySummary> LoadStudies(WebViewerInitParams initParams)
{
ValidateParameters(initParams);
var controller = new StudyController();
var partitionAdapter = new ServerPartitionDataAdapter();
StudySelectCriteria studyCriteria;
var partitionCriteria = new ServerPartitionSelectCriteria();
ServerPartition partition = null;
IList <Study> studies;
List <StudySummary> totalStudies = new List <StudySummary>();
if (!string.IsNullOrEmpty(initParams.AeTitle))
{
partitionCriteria.AeTitle.EqualTo(initParams.AeTitle);
IList <ServerPartition> partitions = partitionAdapter.GetServerPartitions(partitionCriteria);
if (partitions.Count == 1)
{
partition = partitions[0];
}
}
foreach (string patientId in initParams.PatientIds)
{
studyCriteria = new StudySelectCriteria();
if (partition != null)
{
studyCriteria.ServerPartitionKey.EqualTo(partition.Key);
}
SetStringCondition(studyCriteria.PatientId, patientId);
studyCriteria.StudyDate.SortDesc(0);
studies = controller.GetStudies(studyCriteria);
foreach (Study study in studies)
{
totalStudies.Add(StudySummaryAssembler.CreateStudySummary(HttpContextData.Current.ReadContext, study));
}
}
foreach (string accession in initParams.AccessionNumbers)
{
studyCriteria = new StudySelectCriteria();
if (partition != null)
{
studyCriteria.ServerPartitionKey.EqualTo(partition.Key);
}
SetStringCondition(studyCriteria.AccessionNumber, accession);
studyCriteria.StudyDate.SortDesc(0);
studies = controller.GetStudies(studyCriteria);
foreach (Study study in studies)
{
totalStudies.Add(StudySummaryAssembler.CreateStudySummary(HttpContextData.Current.ReadContext, study));
}
}
if (initParams.StudyInstanceUids.Count > 0)
{
studyCriteria = new StudySelectCriteria();
if (partition != null)
{
studyCriteria.ServerPartitionKey.EqualTo(partition.Key);
}
studyCriteria.StudyInstanceUid.In(initParams.StudyInstanceUids);
studyCriteria.StudyDate.SortDesc(0);
studies = controller.GetStudies(studyCriteria);
foreach (Study study in studies)
{
totalStudies.Add(StudySummaryAssembler.CreateStudySummary(HttpContextData.Current.ReadContext, study));
}
}
totalStudies.Sort((a, b) => a.StudyDate.CompareTo(b.StudyDate) * -1);
return(totalStudies);
}
