// ---
public static IEnumerable <IDownloadableResourceFileCollection> enumerateResourceFileCollections(String studentUsername, String studentPassword, Func <Boolean> cancellationRequestedChecker, TextWriter logTextWriter)
{
try {
XmlDocument signedInXmlDocument;
OuSignedInWebSession ouSignedInWebSession = OuSignedInWebSession.signIn(studentUsername, studentPassword, out signedInXmlDocument);
if (null == ouSignedInWebSession || null == signedInXmlDocument)
{
Console.Error.WriteLine("Error: could not sign-in student: {0}", studentUsername);
return(Enumerable.Empty <IDownloadableResourceFileCollection>());
}
signedInXmlDocument.preserve("SignedIn.xml");
using (ouSignedInWebSession) {
// note: using block will attempt to sign-out if an exception is thrown
OuDownloader ouDownloader = new OuDownloader(ouSignedInWebSession);
IEnumerable <IDownloadableResourceFileCollection> findings = ouDownloader.enumerateResourceFileCollections(cancellationRequestedChecker, logTextWriter);
// attempt to sign-out normally:
XmlDocument signedOutXmlDocument;
ouSignedInWebSession.signOut(out signedOutXmlDocument);
if (null == signedOutXmlDocument)
{
Console.Error.WriteLine("Error: could not sign-out");
}
else
{
signedOutXmlDocument.preserve("SignedOut.xml");
}
return(findings);
}
}
catch (Exception exception) {
Console.Error.WriteLine("Error: exception: {0}", exception);
return(Enumerable.Empty <IDownloadableResourceFileCollection>());
}
}
public OuStudentWebModuleResourceFileFinder(OuSignedInWebSession ouSignedInWebSession, Func <Boolean> cancellationRequestedChecker, TextWriter logTextWriter) :
base(ouSignedInWebSession, cancellationRequestedChecker, logTextWriter)
{
}
public OuStudentWebModuleVisitor(OuSignedInWebSession ouSignedInWebSession, Func <Boolean> cancellationRequestedChecker, TextWriter logTextWriter)
{
this.ouSignedInWebSession = ouSignedInWebSession;
this.cancellationRequestedChecker = cancellationRequestedChecker;
this.log = new IndentedWriter(logTextWriter, " ");
}
public OuDownloader(OuSignedInWebSession ouSignedInWebSession)
{
this.ouSignedInWebSession = ouSignedInWebSession;
}