public string Backup(string username, int courseID, int asstID, IExternalSink extsink)
{
string zfile, wzfile, backdesc = username + ": ";
//Create our external sink file
if (extsink == null)
{
extsink = ArchiveToolFactory.GetInstance().CreateArchiveTool(".zip") as IExternalSink;
zfile = username + DateTime.Now.Hour + DateTime.Now.Minute + DateTime.Now.Second + ".zip";
wzfile = Globals.BackupDirectoryName + "/" + zfile;
zfile = Path.Combine(Globals.BackupDirectory, zfile);
extsink.CreateSink(zfile);
}
else
{
wzfile = zfile = ""; // In the middle of a backup
}
//Backup Results
//Back up submissions
FileSystem fs = new FileSystem(m_ident);
Components.Submission.SubmissionList subs;
if (asstID < 0)
{
if (zfile != "")
{
backdesc += (new Courses(m_ident).GetInfo(courseID)).Name;
}
subs = GetCourseSubmissions(username, courseID);
}
else
{
if (zfile != "")
{
backdesc += new Assignments(m_ident).GetInfo(asstID).Description;
}
subs = GetAsstSubmissions(username, asstID);
}
foreach (Components.Submission sub in subs)
{
fs.ExportData(username, sub.LocationID, extsink, true);
}
//If we are doing this not in a batch
if (zfile != "")
{
extsink.CloseSink();
}
//Log backup in database
if (zfile != "")
{
new Backups(Globals.CurrentIdentity).Create(
backdesc, wzfile, courseID);
}
return(zfile);
}
private IExternalSource CreateSource(HttpPostedFile tarchive)
{
ArchiveToolFactory afact = ArchiveToolFactory.GetInstance();
IExternalSource ztool = afact.CreateArchiveTool(".zip") as IExternalSource;
ztool.CreateSource(tarchive.InputStream);
return(ztool);
}
private IExternalSource CreateSource(HttpPostedFile upfile)
{
string ext = Path.GetExtension(upfile.FileName);
IArchiveTool etool =
ArchiveToolFactory.GetInstance().CreateArchiveTool(ext);
(etool as IExternalSource).CreateSource(upfile.InputStream);
return(etool as IExternalSource);
}
private void Page_Load(object sender, System.EventArgs e)
{
if (cmdSubmit.Enabled)
{
lblError.Visible = false;
}
if (!IsPostBack)
{
string[] types = ArchiveToolFactory.GetInstance().ListKeys();
foreach (string type in types)
{
lblTypes.Text += type + " ";
}
}
}
private byte[] GetDirectoryData(CFile dir)
{
FileSystem fs = new FileSystem(Globals.CurrentIdentity);
//Create our external sink (gonna be an archive, so safe cast)
IMemorySink extsink =
ArchiveToolFactory.GetInstance().CreateArchiveTool(".zip") as IMemorySink;
extsink.CreateSink(null);
//Export data
fs.ExportData("", dir, extsink, false);
byte[] data = extsink.GetSinkData();
extsink.CloseSink();
return(data);
}
public string Backup(int asstID)
{
string zfile, wzfile;
Assignment asst = GetInfo(asstID);
//Check permission
Authorize(asst.CourseID, "createbackup", asstID, null);
//Create our external sink file
IExternalSink extsink =
ArchiveToolFactory.GetInstance().CreateArchiveTool(".zip") as IExternalSink;
zfile = Globals.PurifyString(asst.Description) +
DateTime.Now.Hour + DateTime.Now.Minute + DateTime.Now.Second + ".zip";
wzfile = Globals.BackupDirectoryName + "/" + zfile;
zfile = Path.Combine(Globals.BackupDirectory, zfile);
extsink.CreateSink(zfile);
//Backup Info
//Backup Results
//Back up submissions
Users users = new Users(m_ident);
User.UserList mems = new Courses(m_ident).GetMembers(asst.CourseID, null);
foreach (User mem in mems)
{
users.Backup(mem.UserName, asst.CourseID, asstID, extsink);
}
extsink.CloseSink();
new Backups(m_ident).Create(asst.Description, wzfile, asst.CourseID);
return(zfile);
}
public string Backup(int courseID)
{
string zfile, wzfile;
Authorize(courseID, Permission.COURSE, "createback", courseID, null);
//Create our external sink file
IExternalSink extsink =
ArchiveToolFactory.GetInstance().CreateArchiveTool(".zip") as IExternalSink;
Course course = GetInfo(courseID);
zfile = course.Name + DateTime.Now.Hour + DateTime.Now.Minute + DateTime.Now.Second + ".zip";
wzfile = Globals.BackupDirectoryName + "/" + zfile;
zfile = Path.Combine(Globals.BackupDirectory, zfile);
extsink.CreateSink(zfile);
//Backup Info
//Backup Results
//Back up submissions
Users users = new Users(m_ident);
User.UserList mems = GetMembers(courseID, null);
foreach (User mem in mems)
{
users.Backup(mem.UserName, courseID, extsink);
}
extsink.CloseSink();
//Log in database
new Backups(m_ident).Create(GetInfo(courseID).Name, wzfile, courseID);
return(zfile);
}
