private async Task <SavedFile> AddSampleFile(HttpRequestMessage req)
{
var bytes = Convert.FromBase64String(SampleSavedFile.fileContents);
Stream stream = new MemoryStream(bytes);
return(await _fileService.AddFileAsync(stream, SampleSavedFile.documentId, SampleSavedFile.fileName, "", req));
}
public async Task <ApiResult> AddProblemAsync(long contestId, long userId, AddProblemViewModel addProblem)
{
var contest = await _context.Contests.Include(c => c.Owner).SingleOrDefaultAsync(c => c.Id == contestId && c.Id == addProblem.ContestId);
if (contest == null)
{
return new ApiResult {
Error = AddProblemResultType.ContestNotFound
}
}
;
if (contest.Owner.UserId != userId)
{
return new ApiResult {
Error = AddProblemResultType.Unauthorized
}
}
;
if (contest.ProgressState != ContestProgressState.NoStarted &&
contest.ProgressState != ContestProgressState.UnPublished)
{
return(new ApiResult {
Error = AddProblemResultType.Forbiddance
});
}
var problem = _mapper.Map <AddProblemViewModel, ProblemModel>(addProblem);
var fileResult = await _fileService.AddFileAsync(addProblem.File, userId);
switch (fileResult.Error)
{
case AddFileResultType.Error:
return(new ApiResult {
Error = AddProblemResultType.Error
});
case AddFileResultType.FileTooBig:
return(new ApiResult {
Error = AddProblemResultType.FileTooBig
});
case AddFileResultType.Ok:
problem.Content = fileResult.Data;
break;
default:
throw new ArgumentOutOfRangeException();
}
await _context.Problems.AddAsync(problem);
await _context.SaveChangesAsync();
return(new ApiResult {
Error = AddProblemResultType.Ok
});
}
public async Task <HttpResponseMessage> Post(HttpRequestMessage req, TraceWriter log)
{
log.Info("FileApi.Post method called.");
if (req.Content.IsMimeMultipartContent() == false)
{
return(req.CreateResponse(HttpStatusCode.BadRequest));
}
Stream fileStream = null;
var multipartStreamProvider = await req.Content.ReadAsMultipartAsync(new MultipartMemoryStreamProvider());
string documentId = string.Empty, fileName = string.Empty, name = string.Empty;
foreach (HttpContent content in multipartStreamProvider.Contents)
{
Stream stream = content.ReadAsStreamAsync().Result;
if (!string.IsNullOrEmpty(content.Headers.ContentDisposition.FileName))
{
fileName = content.Headers.ContentDisposition.FileName.Trim('"');
log.Info($"Filename: {content.Headers.ContentDisposition.FileName}");
fileStream = stream;
}
else
{
var contents = new StreamReader(stream).ReadToEnd();
if (content.Headers.ContentDisposition.Name == "\"documentId\"")
{
documentId = contents;
}
if (content.Headers.ContentDisposition.Name == "\"name\"")
{
name = contents;
}
}
}
var savedFile = await _fileService.AddFileAsync(fileStream, documentId, fileName, name, req);
return(req.CreateResponse(HttpStatusCode.Created, savedFile));
}
public async Task <ApiResult> AddSubmissionAsync(long contestId, long problemId, long userId, AddSubmissionViewModel addSubmission)
{
var contest = await _context.Contests.Include(c => c.Problems).ThenInclude(p => p.Submissions).Include(c => c.Enrollments).ThenInclude(e => e.Student).SingleOrDefaultAsync(c => c.Id == contestId);
if (contest == null)
{
return new ApiResult {
Error = AddSubmissionResultType.ContestNotFound
}
}
;
if (contest.ProgressState != ContestProgressState.InProgress)
{
return(new ApiResult {
Error = AddSubmissionResultType.Forbiddance
});
}
var enrollment = contest.Enrollments.SingleOrDefault(e =>
e.StudentId == addSubmission.StudentId && e.Student.UserId == userId);
if (enrollment == null)
{
return new ApiResult {
Error = AddSubmissionResultType.Unauthorized
}
}
;
var problem = contest.Problems.SingleOrDefault(p => p.Id == problemId && p.Id == addSubmission.ProblemId);
if (problem == null)
{
return new ApiResult {
Error = AddSubmissionResultType.ProblemNotFound
}
}
;
var submissions = problem.Submissions.Where(p => p.StudentId == addSubmission.StudentId).ToList();
if (submissions.Count > 0)
{
foreach (var s in submissions)
{
if (s.Type != SubmissionType.Binary)
{
continue;
}
var fileResult = await _fileService.DeleteFileAsync(s.Content);
switch (fileResult)
{
case DeleteFileResultType.Error:
return(new ApiResult {
Error = AddSubmissionResultType.Error
});
case DeleteFileResultType.Ok:
break;
default:
throw new ArgumentOutOfRangeException();
}
}
_context.RemoveRange(submissions);
}
var submission = _mapper.Map <AddSubmissionViewModel, SubmissionModel>(addSubmission);
submission.CreateTime = DateTime.Now;
if (submission.Type == SubmissionType.Binary)
{
var fileResult = await _fileService.AddFileAsync(addSubmission.File, userId);
switch (fileResult.Error)
{
case AddFileResultType.Error:
return(new ApiResult {
Error = AddSubmissionResultType.Error
});
case AddFileResultType.FileTooBig:
return(new ApiResult {
Error = AddSubmissionResultType.FileTooBig
});
case AddFileResultType.Ok:
submission.Content = fileResult.Data;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
await _context.Submissions.AddAsync(submission);
await _context.SaveChangesAsync();
return(new ApiResult {
Error = AddSubmissionResultType.Ok
});
}