public async Task <IActionResult> GetCommentFile(int commentId)
{
GetCommentFileDto dto = new GetCommentFileDto {
CommentId = commentId
};
ServiceResponse <string> response = await _commentService.DownloadCommentFile(dto);
if (!response.Success)
{
return(BadRequest(response));
}
string path = response.Data;
string type = GetContentType(path);
if (type == null)
{
return(BadRequest("this file type is not supported"));
}
var memory = new MemoryStream();
using (var stream = new FileStream(path, FileMode.Open))
{
await stream.CopyToAsync(memory);
}
memory.Position = 0;
return(File(memory, type, Path.GetFileName(path)));
}
public async Task <ServiceResponse <string> > DownloadCommentFile(GetCommentFileDto dto)
{
ServiceResponse <string> response = new ServiceResponse <string>();
User user = await _context.Users.Include(u => u.ProjectGroups).FirstOrDefaultAsync(u => u.Id == GetUserId());
Comment comment = await _context.Comments.Include(c => c.CommentedSubmission).FirstOrDefaultAsync(s => s.Id == dto.CommentId);
if (comment == null)
{
response.Data = null;
response.Message = "There is no comment with this Id";
response.Success = false;
return(response);
}
Submission submission = comment.CommentedSubmission;
Assignment assignment = await _context.Assignments.Include(a => a.AfilliatedCourse).ThenInclude(c => c.Instructors)
.FirstOrDefaultAsync(a => a.Id == submission.AffiliatedAssignmentId);
if (!assignment.VisibilityOfSubmission)
{
if (!user.ProjectGroups.Any(pgu => pgu.UserId == submission.AffiliatedGroupId) &&
!assignment.AfilliatedCourse.Instructors.Any(cu => cu.UserId == GetUserId()) && user.UserType == UserTypeClass.Student)
{
response.Data = null;
response.Message = "You are not authorized for this endpoint";
response.Success = false;
return(response);
}
}
if (!comment.FileAttachmentAvailability)
{
response.Data = null;
response.Message = "This user has not yet submitted his comment as a file for this group yet";
response.Success = false;
return(response);
}
response.Data = comment.FilePath;
return(response);
}