public static List <string> Validate(string path, out bool valid)
{
var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
var reader = PackageReader.Create(stream);
valid = true;
var settings = new PackageValidatorSettings(
ValidationBehavior.LogWarning,
ValidationBehavior.LogWarning,
ValidationBehavior.LogError,
ValidationBehavior.LogWarning);
ValidationResults results;
var messages = new List <string>();
try
{
results = Microsoft.LearningComponents.PackageValidator.Validate(reader, settings);
}
catch (InvalidPackageException ex)
{
messages.Add(string.Format("Package is invalid.{0}", ex.Message));
valid = false;
reader.Dispose();
stream.Close();
return(messages);
}
foreach (var result in results.Results)
{
if (result.IsError)
{
valid = false;
messages.Add(string.Format("MLC Error: {0}", result.Message));
}
else
{
messages.Add(string.Format("SCORM Warning: {0}", result.Message));
}
}
if (messages.Count == 0)
{
messages.Add("Package is valid.");
}
reader.Dispose();
stream.Close();
return(messages);
}
/// <summary>
/// Validate the package selected by the user.
/// </summary>
///
void ValidateSelectedPackage()
{
// do nothing if no package is selected
if (packageListBox.SelectedIndex < 0)
{
return;
}
// execute the remainder of this method with a wait cursor displayed
Cursor = Cursors.WaitCursor;
try
{
// set <filePath> to the path to the package the user selected
FileListItem fileListItem = (FileListItem)packageListBox.SelectedItem;
string filePath = fileListItem.FilePath;
// empty <logTextBox>, and add the file name
logTextBox.Clear();
logTextBox.AppendText(String.Format("Validating: {0}\r\n\r\n", filePath));
// validate the package
using (FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
bool anyMessages = false;
using (PackageReader packageReader = PackageReader.Create(stream))
{
// set package validator settings based on the setting of the <additionalScormWarningsCheckBox> control
PackageValidatorSettings settings;
if (additionalScormWarningsCheckBox.Checked)
{
// perform the same validation as SLK, plus look for additional SCORM issues
settings = new PackageValidatorSettings(
ValidationBehavior.LogWarning, ValidationBehavior.LogWarning,
ValidationBehavior.LogError, ValidationBehavior.LogWarning);
}
else
{
// perform the same validation as SLK
settings = new PackageValidatorSettings(
ValidationBehavior.LogWarning, ValidationBehavior.None,
ValidationBehavior.LogError, ValidationBehavior.LogWarning);
}
// validate the package; set <results> to the list of results
ValidationResults results;
try
{
results = PackageValidator.Validate(packageReader, settings);
}
catch (InvalidPackageException ex)
{
logTextBox.AppendText(String.Format("Package is invalid.\r\n\r\n{0}", ex.Message));
return;
}
// display <results>
foreach (ValidationResult result in results.Results)
{
string message;
if (result.IsError)
{
message = String.Format("MLC Error: {0}\r\n\r\n", result.Message);
}
else
{
message = String.Format("SCORM Warning: {0}\r\n\r\n", result.Message);
}
logTextBox.AppendText(message);
anyMessages = true;
}
}
// if there were no messages, give feedback to that effect to the user
if (!anyMessages)
{
logTextBox.AppendText("Package is valid.");
}
}
}
finally
{
Cursor = Cursors.Default;
}
}
protected void UploadPackageButton_OnClick(object sender, EventArgs e)
{
// the user clicked "Upload"...
// do nothing if the user didn't select a file to upload
if (!UploadedPackageFile.HasFile)
{
return;
}
// hide the upload panel and show the message panel; the message panel will hold
// information about the success or failure of the package upload operation
UploadPanel.Visible = false;
MessagePanel.Visible = true;
// attempt to import the uploaded file into PackageStore
try
{
// set <currentUser> to information about the current user; we need the current user's
// UserItemIdentifier
LStoreUserInfo currentUser = GetCurrentUserInfo();
// import the package file; set packageId to the ID of the uploaded
// package; set importLog to a collection of warnings (if any)
// about the import process
PackageItemIdentifier packageId;
ValidationResults importLog;
using (PackageReader packageReader = PackageReader.Create(UploadedPackageFile.FileContent))
{
// Add package, asking to fix anything that can be fixed.
AddPackageResult result = PStore.AddPackage(packageReader, new PackageEnforcement(false, false, false));
packageId = result.PackageId;
importLog = result.Log;
}
// fill in the application-specific columns of the PackageItem table
LearningStoreJob job = LStore.CreateJob();
Dictionary <string, object> properties = new Dictionary <string, object>();
properties[Schema.PackageItem.Owner] = currentUser.Id;
properties[Schema.PackageItem.FileName] = UploadedPackageFile.FileName;
properties[Schema.PackageItem.UploadDateTime] = DateTime.Now;
job.UpdateItem(packageId, properties);
job.Execute();
// retrieve information about the package
job = LStore.CreateJob();
RequestMyTraining(job, packageId);
GetMyTrainingResultsToHtml(job.Execute <DataTable>(), TrainingGrid);
// when the page loads in the browser, copy information about the from the TrainingGrid
// hidden table to the main page using client-side script
UpdateParentPageScript.Visible = true;
// provide user feedback
if (importLog.HasWarnings)
{
// display warnings
WarningIntro.Visible = true;
WarningMessages.Visible = true;
foreach (ValidationResult result in importLog.Results)
{
ScrollingMessagesList.Items.Add(new ListItem(result.Message));
}
}
else
{
// the operation was successful, and there are no messages to display to the user,
// so close the dialog
CloseDialogScript.Visible = true;
}
}
catch (PackageImportException ex)
{
// a package import failure occurred -- display the error message
ErrorIntro.Visible = true;
ErrorMessage.Visible = true;
foreach (ValidationResult result in ex.Log.Results)
{
ErrorMessageScrollingList.Items.Add(new ListItem(result.Message));
}
if (ex.InnerException != null)
{
ErrorMessageScrollingList.Items.Add(new ListItem(
Server.HtmlEncode(ex.InnerException.Message)));
}
}
catch (Exception ex)
{
// an unexpected error occurred -- display a generic message that doesn't include the
// exception message (since that message may include sensitive information), and write
// the exception message to the event log
ErrorIntro.Visible = true;
ErrorMessage.Visible = true;
ErrorMessage.Controls.Add(new System.Web.UI.LiteralControl(
Server.HtmlEncode("A serious error occurred. Please contact your system administrator. More information has been written to the server event log.")));
LogEvent(System.Diagnostics.EventLogEntryType.Error,
"An exception occurred while uploading a package:\n\n{0}\n\n", ex.ToString());
}
}
