public async Task <ServiceResponse <string> > DownloadAllSubmissions(GetSubmissionsFileDto dto)
{
ServiceResponse <string> response = new ServiceResponse <string>();
User user = await _context.Users.Include(u => u.ProjectGroups).FirstOrDefaultAsync(u => u.Id == GetUserId());
Course course = await _context.Courses.Include(u => u.Instructors).FirstOrDefaultAsync(c => c.Id == dto.CourseId);
if (course == null)
{
response.Data = null;
response.Message = "There is no course under this Id";
response.Success = false;
return(response);
}
if (course.Instructors.FirstOrDefault(i => i.UserId == user.Id) == null && user.UserType == UserTypeClass.Student)
{
response.Data = null;
response.Message = "You are not authorized for this endpoint";
response.Success = false;
return(response);
}
if (dto.SectionId == -1)
{
response.Data = Path.Combine(_hostingEnvironment.ContentRootPath, string.Format("{0}/{1}",
"StaticFiles/Submissions", dto.CourseId));
}
else if (dto.AssignmentId == -1)
{
response.Data = Path.Combine(_hostingEnvironment.ContentRootPath, string.Format("{0}/{1}/{2}/",
"StaticFiles/Submissions", dto.CourseId, dto.SectionId));
}
else
{
response.Data = Path.Combine(_hostingEnvironment.ContentRootPath, string.Format("{0}/{1}/{2}/{3}",
"StaticFiles/Submissions", dto.CourseId, dto.SectionId, dto.AssignmentId));
}
return(response);
}
public async Task <ActionResult> GetAllSubmissions(int courseId, int sectionId = -1, int assignmentId = -1)
{
GetSubmissionsFileDto dto = new GetSubmissionsFileDto {
CourseId = courseId, SectionId = sectionId, AssignmentId = assignmentId
};
ServiceResponse <string> response = await _submissionService.DownloadAllSubmissions(dto);
if (!response.Success)
{
return(BadRequest(response));
}
List <string> files = new List <string>();
Stack <string> stack = new Stack <string>();
string s = response.Data;
stack.Push(s);
while (stack.Count != 0)
{
s = stack.Peek();
stack.Pop();
foreach (string f in Directory.GetFiles(s))
{
files.Add(f);
}
foreach (string d in Directory.GetDirectories(s))
{
stack.Push(d);
}
}
var webRoot = _hostingEnvironment.ContentRootPath;
var fileName = "Submissions.zip";
var tempOutput = webRoot + "/StaticFiles/Submissions/" + fileName;
using (ZipOutputStream zipOutputStream = new ZipOutputStream(System.IO.File.Create(tempOutput)))
{
zipOutputStream.SetLevel(9);
byte[] buffer = new byte[4096];
for (int i = 0; i < files.Count; i++)
{
ZipEntry zipEntry = new ZipEntry(Path.GetFileName(files[i]));
zipEntry.DateTime = DateTime.Now;
zipEntry.IsUnicodeText = true;
zipOutputStream.PutNextEntry(zipEntry);
using (FileStream fileStream = System.IO.File.OpenRead(files[i]))
{
int sourceBytes;
do
{
sourceBytes = fileStream.Read(buffer, 0, buffer.Length);
zipOutputStream.Write(buffer, 0, sourceBytes);
} while (sourceBytes > 0);
}
}
zipOutputStream.Finish();
zipOutputStream.Flush();
zipOutputStream.Close();
byte[] finalResult = System.IO.File.ReadAllBytes(tempOutput);
if (System.IO.File.Exists(tempOutput))
{
System.IO.File.Delete(tempOutput);
}
if (finalResult == null || !finalResult.Any())
{
return(BadRequest(response));
}
return(File(finalResult, "application/zip", fileName));
}
}
