private void WaitUntilSandboxIsReady(Process sandbox)
{
var readyLineReadTask = sandbox.StandardOutput.ReadLineAsync();
if (readyLineReadTask.Wait(settings.MaintenanceTimeLimit) && readyLineReadTask.Result == "Ready")
{
return;
}
if (!sandbox.HasExited)
{
throw new SandboxException($"Песочница не ответила «Ready» через {settings.MaintenanceTimeLimit.TotalSeconds} секунд после запуска, убиваю её");
}
if (sandbox.ExitCode != 0)
{
log.Warn($"Песочница не ответила «Ready», а вышла с кодом {sandbox.ExitCode}");
var stderrReader = new AsyncReader(sandbox.StandardError, settings.OutputLimit + 1);
var stderrData = stderrReader.GetDataAsync().Result;
log.Warn($"Вывод песочницы в stderr:\n{stderrData}");
var result = GetResultForNonZeroExitCode(stderrData, sandbox.ExitCode);
throw new SandboxException(result.Error);
}
throw new SandboxException("Sandbox unexpectedly exited before respond");
}
private void RunSolutionAndWaitUntilSandboxExit(Process sandbox, out string sandboxOutput, out string sandboxError)
{
sandbox.Refresh();
var startUsedMemory = sandbox.WorkingSet64;
var startUsedTime = sandbox.TotalProcessorTime;
var startTime = DateTime.Now;
sandbox.StandardInput.WriteLine("Run");
sandbox.StandardInput.Flush();
sandbox.StandardInput.WriteLineAsync(submission.Input);
var stderrReader = new AsyncReader(sandbox.StandardError, settings.OutputLimit + 1);
var stdoutReader = new AsyncReader(sandbox.StandardOutput, settings.OutputLimit + 1);
while (!sandbox.HasExited &&
!CheckIsTimeLimitExceeded(sandbox, startTime, startUsedTime) &&
!CheckIsMemoryLimitExceeded(sandbox, startUsedMemory) &&
!CheckIsOutputLimit(stdoutReader) &&
!CheckIsOutputLimit(stderrReader))
{
}
if (!hasTimeLimit && !hasMemoryLimit && !hasOutputLimit)
{
/* Read all data to the end of streams */
sandboxError = stderrReader.GetData();
sandboxOutput = stdoutReader.GetData();
hasOutputLimit = CheckIsOutputLimit(stdoutReader);
hasOutputLimit = CheckIsOutputLimit(stderrReader);
}
else
{
sandboxError = "";
sandboxOutput = "";
}
}
private bool CheckIsOutputLimit(AsyncReader reader)
{
return(hasOutputLimit = hasOutputLimit || reader.ReadedLength > settings.OutputLimit);
}
private bool IsOutputLimit(AsyncReader reader)
{
return(_hasOutputLimit = _hasOutputLimit ||
(reader.ReadedLength > OutputLimit));
}
private void RunSandboxer(CompilerResults assembly)
{
var startInfo = new ProcessStartInfo(
"CsSandboxer.exe",
string.Format("\"{0}\" {1}", Path.GetFullPath(assembly.PathToAssembly), _submission.Id))
{
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = true,
StandardOutputEncoding = Encoding.UTF8,
StandardErrorEncoding = Encoding.UTF8
};
var sandboxer = Process.Start(startInfo);
if (sandboxer == null)
{
_result.Verdict = Verdict.SandboxError;
_result.Error = "Can't start proces";
return;
}
var stderrReader = new AsyncReader(sandboxer.StandardError, OutputLimit + 1);
var readyState = sandboxer.StandardOutput.ReadLineAsync();
if (!readyState.Wait(TimeLimit) || readyState.Result != "Ready")
{
if (!sandboxer.HasExited)
{
sandboxer.Kill();
_result.Verdict = Verdict.SandboxError;
_result.Error = "Sandbox does not respond";
return;
}
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
_result.Verdict = Verdict.SandboxError;
_result.Error = "Sandbox exit before respond";
return;
}
sandboxer.Refresh();
var startUsedMemory = sandboxer.WorkingSet64;
var startUsedTime = sandboxer.TotalProcessorTime;
var startTime = DateTime.Now;
sandboxer.StandardInput.WriteLine("Run");
sandboxer.StandardInput.WriteLineAsync(_submission.Input);
var stdoutReader = new AsyncReader(sandboxer.StandardOutput, OutputLimit + 1);
while (!sandboxer.HasExited &&
!IsTimeLimitExpected(sandboxer, startTime, startUsedTime) &&
!IsMemoryLimitExpected(sandboxer, startUsedMemory) &&
!IsOutputLimit(stdoutReader) &&
!IsOutputLimit(stderrReader))
{
}
if (!sandboxer.HasExited)
{
sandboxer.Kill();
}
if (_hasOutputLimit)
{
_result.Verdict = Verdict.OutputLimit;
return;
}
if (_hasTimeLimit)
{
_result.Verdict = Verdict.TimeLimit;
return;
}
if (_hasMemoryLimit)
{
_result.Verdict = Verdict.MemoryLimit;
return;
}
sandboxer.WaitForExit();
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
_result.Output = stdoutReader.GetData();
_result.Error = stderrReader.GetData();
}
private bool IsOutputLimit(AsyncReader reader)
{
return _hasOutputLimit = _hasOutputLimit
|| (reader.ReadedLength > OutputLimit);
}
private void RunSandboxer(CompilerResults assembly)
{
var startInfo = new ProcessStartInfo(
"CsSandboxer.exe",
string.Format("\"{0}\" {1}", Path.GetFullPath(assembly.PathToAssembly), _submission.Id))
{
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = true,
StandardOutputEncoding = Encoding.UTF8,
StandardErrorEncoding = Encoding.UTF8
};
var sandboxer = Process.Start(startInfo);
if (sandboxer == null)
{
_result.Verdict = Verdict.SandboxError;
_result.Error = "Can't start proces";
return;
}
var stderrReader = new AsyncReader(sandboxer.StandardError, OutputLimit + 1);
var readyState = sandboxer.StandardOutput.ReadLineAsync();
if (!readyState.Wait(TimeLimit) || readyState.Result != "Ready")
{
if (!sandboxer.HasExited)
{
sandboxer.Kill();
_result.Verdict = Verdict.SandboxError;
_result.Error = "Sandbox does not respond";
return;
}
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
_result.Verdict = Verdict.SandboxError;
_result.Error = "Sandbox exit before respond";
return;
}
sandboxer.Refresh();
var startUsedMemory = sandboxer.WorkingSet64;
var startUsedTime = sandboxer.TotalProcessorTime;
var startTime = DateTime.Now;
sandboxer.StandardInput.WriteLine("Run");
sandboxer.StandardInput.WriteLineAsync(_submission.Input);
var stdoutReader = new AsyncReader(sandboxer.StandardOutput, OutputLimit + 1);
while (!sandboxer.HasExited
&& !IsTimeLimitExpected(sandboxer, startTime, startUsedTime)
&& !IsMemoryLimitExpected(sandboxer, startUsedMemory)
&& !IsOutputLimit(stdoutReader)
&& !IsOutputLimit(stderrReader))
{
}
if (!sandboxer.HasExited)
sandboxer.Kill();
if (_hasOutputLimit)
{
_result.Verdict = Verdict.OutputLimit;
return;
}
if (_hasTimeLimit)
{
_result.Verdict = Verdict.TimeLimit;
return;
}
if (_hasMemoryLimit)
{
_result.Verdict = Verdict.MemoryLimit;
return;
}
sandboxer.WaitForExit();
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
_result.Output = stdoutReader.GetData();
_result.Error = stderrReader.GetData();
}
private void RunSandboxer(string args)
{
var workingDirectory = AppDomain.CurrentDomain.BaseDirectory;
log.Info($"Запускаю C#-песочницу с аргументами: {args}\nРабочая директория: {workingDirectory}");
var startInfo = new ProcessStartInfo(Path.Combine(workingDirectory, "CsSandboxer.exe"), args)
{
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = true,
StandardOutputEncoding = Encoding.UTF8,
StandardErrorEncoding = Encoding.UTF8
};
startInfo.EnvironmentVariables.Add("InsideSandbox", "true");
Process sandboxer;
try
{
sandboxer = Process.Start(startInfo);
}
catch (Exception e)
{
log.Error("Не могу запустить C#-песочницу", e);
result.Verdict = Verdict.SandboxError;
result.Error = "Can't start process";
return;
}
if (sandboxer == null)
{
log.Error("Не могу запустить C#-песочницу. Process.Start() вернул NULL");
result.Verdict = Verdict.SandboxError;
result.Error = "Can't start process";
return;
}
var stderrReader = new AsyncReader(sandboxer.StandardError, settings.OutputLimit + 1);
var readyState = sandboxer.StandardOutput.ReadLineAsync();
if (!readyState.Wait(settings.TimeLimit) || readyState.Result != "Ready")
{
if (!sandboxer.HasExited)
{
log.Error($"Песочница не завершилась через {settings.TimeLimit.TotalSeconds} секунд, убиваю её");
sandboxer.Kill();
result.Verdict = Verdict.SandboxError;
result.Error = "Sandbox does not respond";
return;
}
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
result.Verdict = Verdict.SandboxError;
result.Error = "Sandbox exit before respond";
return;
}
sandboxer.Refresh();
var startUsedMemory = sandboxer.WorkingSet64;
var startUsedTime = sandboxer.TotalProcessorTime;
var startTime = DateTime.Now;
sandboxer.StandardInput.WriteLine("Run");
sandboxer.StandardInput.WriteLineAsync(submission.Input);
var stdoutReader = new AsyncReader(sandboxer.StandardOutput, settings.OutputLimit + 1);
while (!sandboxer.HasExited &&
!IsTimeLimitExpected(sandboxer, startTime, startUsedTime) &&
!IsMemoryLimitExpected(sandboxer, startUsedMemory) &&
!IsOutputLimit(stdoutReader) &&
!IsOutputLimit(stderrReader))
{
}
if (!sandboxer.HasExited)
{
sandboxer.Kill();
}
if (hasOutputLimit)
{
result.Verdict = Verdict.OutputLimit;
return;
}
if (hasTimeLimit)
{
log.Error("Программа превысила ограничение по времени");
result.Verdict = Verdict.TimeLimit;
return;
}
if (hasMemoryLimit)
{
log.Error("Программа превысила ограничение по памяти");
result.Verdict = Verdict.MemoryLimit;
return;
}
sandboxer.WaitForExit();
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
result.Output = stdoutReader.GetData();
result.Error = stderrReader.GetData();
}
private bool IsOutputLimit(AsyncReader reader)
{
return hasOutputLimit = hasOutputLimit
|| (reader.ReadedLength > settings.OutputLimit);
}
private void RunSandboxer(string args)
{
var workingDirectory = AppDomain.CurrentDomain.BaseDirectory;
log.Info($"Запускаю C#-песочницу с аргументами: {args}\nРабочая директория: {workingDirectory}");
var startInfo = new ProcessStartInfo(Path.Combine(workingDirectory, "CsSandboxer.exe"), args)
{
RedirectStandardInput = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
UseShellExecute = false,
CreateNoWindow = true,
StandardOutputEncoding = Encoding.UTF8,
StandardErrorEncoding = Encoding.UTF8
};
startInfo.EnvironmentVariables.Add("InsideSandbox", "true");
Process sandboxer;
try
{
sandboxer = Process.Start(startInfo);
}
catch (Exception e)
{
log.Error("Не могу запустить C#-песочницу", e);
result.Verdict = Verdict.SandboxError;
result.Error = "Can't start process";
return;
}
if (sandboxer == null)
{
log.Error("Не могу запустить C#-песочницу. Process.Start() вернул NULL");
result.Verdict = Verdict.SandboxError;
result.Error = "Can't start process";
return;
}
var stderrReader = new AsyncReader(sandboxer.StandardError, settings.OutputLimit + 1);
var readyState = sandboxer.StandardOutput.ReadLineAsync();
if (!readyState.Wait(settings.TimeLimit) || readyState.Result != "Ready")
{
if (!sandboxer.HasExited)
{
log.Error($"Песочница не завершилась через {settings.TimeLimit.TotalSeconds} секунд, убиваю её");
sandboxer.Kill();
result.Verdict = Verdict.SandboxError;
result.Error = "Sandbox does not respond";
return;
}
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
result.Verdict = Verdict.SandboxError;
result.Error = "Sandbox exit before respond";
return;
}
sandboxer.Refresh();
var startUsedMemory = sandboxer.WorkingSet64;
var startUsedTime = sandboxer.TotalProcessorTime;
var startTime = DateTime.Now;
sandboxer.StandardInput.WriteLine("Run");
sandboxer.StandardInput.WriteLineAsync(submission.Input);
var stdoutReader = new AsyncReader(sandboxer.StandardOutput, settings.OutputLimit + 1);
while (!sandboxer.HasExited
&& !IsTimeLimitExpected(sandboxer, startTime, startUsedTime)
&& !IsMemoryLimitExpected(sandboxer, startUsedMemory)
&& !IsOutputLimit(stdoutReader)
&& !IsOutputLimit(stderrReader))
{
}
if (!sandboxer.HasExited)
sandboxer.Kill();
if (hasOutputLimit)
{
result.Verdict = Verdict.OutputLimit;
return;
}
if (hasTimeLimit)
{
log.Error("Программа превысила ограничение по времени");
result.Verdict = Verdict.TimeLimit;
return;
}
if (hasMemoryLimit)
{
log.Error("Программа превысила ограничение по памяти");
result.Verdict = Verdict.MemoryLimit;
return;
}
sandboxer.WaitForExit();
if (sandboxer.ExitCode != 0)
{
HandleNonZeroExitCode(stderrReader.GetData(), sandboxer.ExitCode);
return;
}
result.Output = stdoutReader.GetData();
result.Error = stderrReader.GetData();
}