protected async Task SSEMethod(string ids, int taskId, string studentId)
{
int[] solIds = JsonConvert.DeserializeObject <int[]>(ids);
var response = Response;
response.Headers.Add("Content-Type", "text/event-stream");
response.Headers.Add("Cache-Control", "no-cache");
response.Headers.Add("Connection", "keep-alive");
var curState = new Dictionary <int, ResultCode>();
foreach (var id in solIds)
{
var s = _db.Solutions.Find(id);
if (s != null)
{
curState[id] = s.ResultCode;
}
}
while (true)
{
bool update = false;
foreach (var id in solIds)
{
var s = _db.Solutions.Find(id);
_db.Entry(s).Reload();
if (s != null && s.ResultCode != ResultCode.NT && curState[id] == ResultCode.NT)
{
curState[id] = s.ResultCode;
update = true;
break;
}
}
if (update)
{
solIds = solIds.Where(i => curState[i] == ResultCode.NT).ToArray();
var res = GetStudentTaskView(taskId, studentId);
JsonSerializerSettings serializerSettings = new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver(),
DateTimeZoneHandling = DateTimeZoneHandling.RoundtripKind
};
var data = JsonConvert.SerializeObject(res, serializerSettings);
await response
.WriteAsync("data:" + data + "\n\n");
}
await Task.Delay(5 * 1000);
}
}
public async Task CheckSolutions(PlagiarismCheckRequest checkRequest)
{
try
{
int taskId = checkRequest.TaskId;
var task = _db.StudentTasks.Find(taskId);
while (DateTime.Now < task.To)
{
await Task.Delay(5 * 60 * 1000);
_db.Entry(task).Reload();
}
var check = _db.PlagiarismChecks.Find(taskId);
if (check.Settings.MakeCheck)
{
var sourceFileList = new List <string>();
var studentSolutions = _db.StudentResults.Where(r => r.TaskId == taskId).Select(r => r.Solution).ToList();
var taskDir = new DirectoryInfo("C:\\tasks\\" + taskId.ToString());
if (taskDir.Exists)
{
taskDir.Delete(true);
}
taskDir.Create();
var saveDir = new DirectoryInfo("C:\\saving");
if (!saveDir.Exists)
{
saveDir.Create();
}
foreach (var sol in studentSolutions)
{
var curSaveDir = new DirectoryInfo(saveDir.FullName + "\\" + sol.Id.ToString());
if (curSaveDir.Exists)
{
curSaveDir.Delete(true);
}
curSaveDir.Create();
string fullPath = curSaveDir.FullName + "\\" + sol.File.Name;
File.WriteAllBytes(fullPath, sol.File.Content);
ZipFile.ExtractToDirectory(fullPath, curSaveDir.FullName, true);
var curSolDir = new DirectoryInfo(taskDir.FullName + "\\" + sol.Id.ToString());
if (curSolDir.Exists)
{
curSolDir.Delete(true);
}
curSolDir.Create();
var solFiles = curSaveDir.GetFiles("*.cs", SearchOption.AllDirectories).Where(p => !p.FullName.Contains("\\obj\\")).ToList();
foreach (var file in solFiles)
{
file.CopyTo(curSolDir.FullName + "//" + file.Name);
}
curSaveDir.Delete(true);
}
var request = new MossRequest
{
UserId = _config.MossId,
IsDirectoryMode = true,
IsBetaRequest = false,
Language = check.Settings.Language,
MaxMatches = check.Settings.MaxMatches
};
//request.BaseFile.AddRange(this.BaseFileList);
foreach (var solDir in taskDir.GetDirectories())
{
var curSolFiles = solDir.GetFiles("*.cs", SearchOption.AllDirectories).Select(f => f.FullName).Where(p => !p.Contains("\\obj\\")).ToList();
sourceFileList.AddRange(curSolFiles);
}
request.Files.AddRange(sourceFileList);
bool res = request.SendRequest(out string response);
check.Link = response;
if (res)
{
string html = new WebClient().DownloadString(response);
var config = Configuration.Default;
var context = BrowsingContext.New(config);
var document = context.OpenAsync(req => req.Content(html)).Result;
var allLines = document.All.Where(m => m.LocalName == "tr" && !m.Children.Any(c => c.LocalName == "th"));
foreach (var line in allLines)
{
var file1 = ParseUserAndPercent(line.Children[0]);
var file2 = ParseUserAndPercent(line.Children[1]);
var lMatched = int.Parse(line.Children[2].InnerHtml);
var solId1 = file1.Item1;
var percent1 = file1.Item2;
var solId2 = file2.Item1;
var percent2 = file2.Item2;
if (percent1 > check.Settings.MinPercent || percent2 > check.Settings.MinPercent)
{
var sol1 = _db.Solutions.Find(solId1);
var sol2 = _db.Solutions.Find(solId2);
var newResult = new PlagiarismResult
{
SolutionId1 = sol1.Id,
SolutionId2 = sol2.Id,
Percent1 = percent1,
Percent2 = percent2,
LinesMatched = lMatched,
TaskId = taskId,
};
_db.PlagiarismResults.Add(newResult);
sol1.PlagiarismDetected = true;
sol2.PlagiarismDetected = true;
}
}
}
_db.SaveChanges();
}
}
catch
{
return;
}
}