public override bool Equals(object obj)
{
Hack other = obj as Hack;
if (other == null)
{
return(false);
}
return(other.ID == this.ID);
}
public TaskFeedback_Hack Hack(Problem problem, Record record, Hack hack)
{
if (!Authenticated) throw new FaultException<AccessDeniedError>(new AccessDeniedError());
return Env.Run(new Task
{
Problem = problem,
Record = record,
Hack = hack,
Type = TaskType.Hack
}, Callback) as TaskFeedback_Hack;
}
public int HackRecord(int recordID, string dataOrDatamaker, ProgrammingLanguage? datamakerLanguage)
{
using (DB db = new DB())
{
CheckRole(db, UserRole.Competitor);
Record record = db.Records.Find(recordID);
if (record == null) throw new FaultException<NotFoundError>(new NotFoundError { ID = recordID, Type = "Record" });
if (record.Status != RecordStatus.Accepted)
throw new FaultException<InvalidOperationError>(new InvalidOperationError(), "Only accepted records can be hacked");
Contest contest = record.Problem.Contest;
Problem problem = record.Problem;
if (contest.StartTime > DateTime.Now)
throw new FaultException<InvalidOperationError>(new InvalidOperationError(), "Contest not started");
if (contest.EndTime < DateTime.Now)
throw new FaultException<InvalidOperationError>(new InvalidOperationError(), "Contest has finished");
if (contest.Type == ContestType.Codeforces)
{
if (!problem.LockedUsers.Contains(CurrentUser))
throw new FaultException<InvalidOperationError>(new InvalidOperationError(), "Please lock the problem first");
}
else if (contest.Type == ContestType.TopCoder)
{
if (contest.HackStartTime > DateTime.Now)
throw new FaultException<InvalidOperationError>(new InvalidOperationError(), "Hack before hackStartTime");
}
else
throw new FaultException<InvalidOperationError>(new InvalidOperationError(), "This contest does not support hacking.");
Hack hack = new Hack
{
DatamakerLanguage = datamakerLanguage,
DataOrDatamaker = dataOrDatamaker,
HackerID = CurrentUser.ID,
RecordID = record.ID,
Status = HackStatus.Pending,
Time = DateTime.Now
};
db.Hacks.Add(hack);
db.SaveChanges();
if (NewHack != null)
System.Threading.Tasks.Task.Factory.StartNew(() => NewHack(hack.ID));
return hack.ID;
}
}
private void DoJudgeHack(int hackID)
{
using (DB db = new DB())
{
Contest contest;
Problem problem;
Record record;
Hack hack;
var h = db.Hacks.Find(hackID);
if (h == null) return;
if (h.Status != HackStatus.Pending) return;
h.Status = Entity.HackStatus.Running;
db.SaveChanges();
hack = new Hack
{
ID = h.ID,
DatamakerLanguage = h.DatamakerLanguage,
DataOrDatamaker = h.DataOrDatamaker,
HackeeID = h.Record.UserID,
HackeeNickName = h.Record.User.NickName,
HackerID = h.HackerID,
HackerNickName = h.Hacker.NickName,
RecordID = h.RecordID,
Status = HackStatus.Running
};
var r = h.Record;
record = new Record
{
ID = r.ID,
Code = r.Code,
Language = r.Language,
ProblemID = r.ProblemID,
ProblemTitle = r.Problem.Title,
Status = RecordStatus.Running,
SubmissionTime = r.SubmissionTime,
UserID = r.UserID,
UserNickName = r.UserNickName
};
var p = r.Problem;
problem = new Problem
{
ID = p.ID,
ContestID = p.ContestID,
ContestTitle = p.Contest.Title,
ForbiddenLanguages = p.ForbiddenLanguages,
MemoryLimit = p.MemoryLimit,
Score = p.Score,
Spj = p.Spj,
SpjLanguage = p.SpjLanguage,
Std = p.Std,
StdLanguage = p.StdLanguage,
TestCasesCount = p.TestCases.Count,
TimeLimit = p.TimeLimit,
Title = p.Title,
Validator = p.Validator,
ValidatorLanguage = p.ValidatorLanguage
};
using (var conn = GetFreestNode())
{
var ret = conn.Hack(problem, record, hack);
h.Status = ret.HackStatus;
if (ret.HackStatus == HackStatus.Success)
{
h.Record.Status = RecordStatus.Hacked;
var inputHash = MD5.Create().ComputeHash(ret.HackData.Input);
var outputHash = MD5.Create().ComputeHash(ret.HackData.Output);
bool existed = (from t in db.TestCases
where t.ProblemID == p.ID
&& t.InputHash == inputHash
select t).Any();
if (!existed)
{
var hackTestCase = new TestCase
{
Input = ret.HackData.Input,
InputHash = inputHash,
Output = ret.HackData.Output,
OutputHash = outputHash,
ProblemID = p.ID,
Type = TestCaseType.Systemtest
};
db.TestCases.Add(hackTestCase);
db.SaveChanges();
hack.GeneratedTestCaseID = hackTestCase.ID;
}
}
else
{
h.Detail = ret.CompilerOutput;
}
db.SaveChanges();
}
}
}
