private static object CreateGenericDelegatesForFunction(InstanceGenerator instanceGenerator, MethodInfo methodInfo,
GenerationRequest request)
{
var fullSignatureTypes = ReturnTypeOf(methodInfo).Concat(ParameterTypes(methodInfo));
return(CreateGenericDelegatesObjectForConcreteTypes(fullSignatureTypes, WithArgumentGeneratedBy(instanceGenerator, methodInfo, request)));
}
public async Task <FileStreamResult> GetFromUrl(string outputfile, string template)
{
using (_logger.BeginScope("Generate Direct " + template))
{
var data = new GenerationRequest()
{
Template = new GenerationTemplateData()
{
Url = template
},
Output = new GenerationOutputData()
{
FileName = outputfile
}
};
_logger.LogInformation("Beginning Document Creation");
var result = await InvokeCreation(data);
result.Flush();
result.Position = 0;
_logger.LogInformation("Completed Document Creation");
return(new FileStreamResult(result, "application/pdf"));
}
}
public object?Dummy(GenerationRequest request, Type type)
{
var smartType = SmartType.For(type);
if (type.IsPrimitive)
{
return(_unconstrainedChain.Resolve(this, request, type));
}
if (type == typeof(string))
{
return(_unconstrainedChain.Resolve(this, request, type));
}
var emptyCollectionInstantiation = new EmptyCollectionInstantiation();
if (smartType.IsImplementationOfOpenGeneric(typeof(IEnumerable <>)))
{
return(emptyCollectionInstantiation.CreateCollectionPassedAsGenericType(type));
}
if (smartType.IsOpenGeneric(typeof(IEnumerable <>)))
{
return(emptyCollectionInstantiation.EmptyEnumerableOf(type.GetCollectionItemType()));
}
if (type.IsAbstract)
{
return(default);
public object GenerateCustomizedInstance(InstanceGenerator instanceGenerator, GenerationRequest request, Type type)
{
var generateInstance = GenerateInstance(instanceGenerator, request, type);
CustomizeCreatedValue(generateInstance, instanceGenerator, request, type);
return(generateInstance);
}
internal static string[] GetCommandLineArguments(GenerationRequest req, out string currentDirectory, out string tempDirectory, out string libDirectory)
{
currentDirectory = null;
libDirectory = null;
tempDirectory = null;
List <string> commandLineArguments = new List <string>();
foreach (GenerationRequest.Argument arg in req.Arguments)
{
if (arg.ArgumentId == GenerationProtocolConstants.ArgumentId.CurrentDirectory)
{
currentDirectory = arg.Value;
}
else if (arg.ArgumentId == GenerationProtocolConstants.ArgumentId.TempDirectory)
{
tempDirectory = arg.Value;
}
else if (arg.ArgumentId == GenerationProtocolConstants.ArgumentId.CommandLineArgument)
{
int argIndex = arg.ArgumentIndex;
while (argIndex >= commandLineArguments.Count)
{
commandLineArguments.Add("");
}
commandLineArguments[argIndex] = arg.Value;
}
}
return(commandLineArguments.ToArray());
}
public string GenerateInstance(InstanceGenerator instanceGenerator, GenerationRequest request)
{
var preprocessedStrings = from str in _excludedSubstrings
where !string.IsNullOrEmpty(str)
select str;
var result = _stringGenerator.GenerateInstance(instanceGenerator, request);
var found = false;
for (int i = 0; i < 100; ++i)
{
result = _stringGenerator.GenerateInstance(instanceGenerator, request);
if (!preprocessedStrings.Any(result.Contains))
{
found = true;
break;
}
}
if (!found)
{
foreach (var excludedSubstring in _excludedSubstrings.Where(s => s != string.Empty))
{
result = result.Replace(excludedSubstring, "");
}
}
return(result);
}
public object Instance(Type type, GenerationRequest request)
{
return(request.GenerationCustomizations.Where(c => c.AppliesTo(type)).FirstMaybe()
.SelectOrElse(
c => c.Generate(type, this, request),
() => _inner.Instance(type, request, request.GenerationCustomizations)));
}
protected string GetCacheName(GenerationRequest request, HttpContext context, string extension)
{
if (request.LayerName.Contains(".") || request.LayerName.Contains("/"))
{
throw new HttpException("Layer name is not valid.");
}
var cacheComponents = new string[]
{
"~",
"App_Cache",
"api-v1",
request.LayerName,
request.Seed.ToString(),
request.X.ToString(),
request.Y.ToString(),
request.Z.ToString(),
request.Size.ToString(),
"get" + (request.AsSquare ? "_square" : "") +
(request.Packed ? "_packed" : "") + "." + extension
};
for (var i = 0; i < cacheComponents.Length - 1; i++)
{
var path = context.Server.MapPath(cacheComponents.Where((x, id) => id <= i).Aggregate((a, b) => a + "/" + b));
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
}
return(context.Server.MapPath(cacheComponents.Aggregate((a, b) => a + "/" + b)));
}
public object NewInstanceOf(Type type, InstanceGenerator instanceGenerator, GenerationRequest request)
{
var typeInfo = type.GetTypeInfo();
var type1 = typeInfo.GetGenericArguments()[0];
var type2 = typeInfo.GetGenericArguments()[1];
return(_factoryMethod.Invoke(type1, type2, instanceGenerator, request));
}
protected override void ValidateGenerationRequest(GenerationRequest request)
{
// Now that we've read data from the stream we can validate the identity.
if (!ClientAndOurIdentitiesMatch(_pipeStream))
{
throw new Exception("Client identity does not match server identity.");
}
}
/// <summary>
/// Try to compile using the server. Returns a null-containing Task if a response
/// from the server cannot be retrieved.
/// </summary>
private static async Task <GenerationResponse> TryGeneration(NamedPipeClientStream pipeStream,
GenerationRequest request,
CancellationToken cancellationToken)
{
GenerationResponse response;
using (pipeStream)
{
// Write the request
try
{
_log.Debug("Begin writing request");
await request.WriteAsync(pipeStream, cancellationToken).ConfigureAwait(false);
_log.Debug("End writing request");
}
catch (Exception e)
{
_log.Error($"Error writing build request. {e.Message}", e);
return(new RejectedGenerationResponse());
}
// Wait for the compilation and a monitor to detect if the server disconnects
var serverCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
_log.Debug("Begin reading response");
var responseTask = GenerationResponse.ReadAsync(pipeStream, serverCts.Token);
var monitorTask = CreateMonitorDisconnectTask(pipeStream, "client", serverCts.Token);
await Task.WhenAny(responseTask, monitorTask).ConfigureAwait(false);
_log.Debug("End reading response");
if (responseTask.IsCompleted)
{
// await the task to log any exceptions
try
{
response = await responseTask.ConfigureAwait(false);
}
catch (Exception e)
{
_log.Error("Error reading response", e);
response = new RejectedGenerationResponse();
}
}
else
{
_log.Debug("Server disconnect");
response = new RejectedGenerationResponse();
}
// Cancel whatever task is still around
serverCts.Cancel();
Debug.Assert(response != null);
return(response);
}
}
public AbstractClassInterceptor(
CachedReturnValueGeneration cachedGeneration,
Func <Type, GenerationRequest, object> instanceSource,
GenerationRequest request)
{
_cachedGeneration = cachedGeneration;
_instanceSource = instanceSource;
_request = request;
}
public object Apply(InstanceGenerator instanceGenerator, GenerationRequest request, Type type)
{
//todo think it through - should it need access to InlineGenerators?
var elementType = type.GetElementType();
var array = InlineGenerators.GetByNameAndType(nameof(InlineGenerators.Array), elementType)
.GenerateInstance(instanceGenerator, request);
return(array);
}
public void Generate(GenerationRequest request)
{
Creator.CreateDirectory(request.FolderOfResults);
for (int i = 0; i < request.NumberOfFiles; i++)
{
CreateFile(GetPathToFile(request, i), request.NumberOfInts);
}
}
public static ICollection <T> AddTo <T>(ICollection <T> collection, int many,
InstanceGenerator instanceGenerator, GenerationRequest request)
{
for (int i = 0; i < many; ++i)
{
collection.Add(instanceGenerator.Instance <T>(request));
}
return(collection);
}
private T WithCustomizations <T>(
InstanceGenerator gen,
GenerationRequest request,
Func <FixtureWrapper, T> creation)
{
using (_generator.Customize(request, gen))
{
return(creation.Invoke(_generator));
}
}
internal static RunRequest GetRunRequest(GenerationRequest req)
{
string currentDirectory;
string libDirectory;
string tempDirectory;
string[] arguments = GetCommandLineArguments(req, out currentDirectory, out tempDirectory, out libDirectory);
return(new RunRequest(currentDirectory, tempDirectory, arguments));
}
public object Apply(InstanceGenerator instanceGenerator, GenerationRequest request, Type type)
{
var resultType = type.GenericTypeArguments.First();
var parameters = instanceGenerator.Instance(resultType, request);
var result = new GenericMethodProxyCalls().ResultOfGenericVersionOfStaticMethod <Task>(
type.GenericTypeArguments.First(),
"FromResult", parameters);
return(result);
}
public IEnumerable <T> GenerateInstance(InstanceGenerator instanceGenerator, GenerationRequest request)
{
var list = new List <T>();
list.Add(instanceGenerator.Instance <T>(request));
list.AddRange(_included);
list.Add(instanceGenerator.Instance <T>(request));
return(list);
}
public string GenerateInstance(InstanceGenerator instanceGenerator, GenerationRequest request)
{
var result = string.Empty;
while (result.Length < _length)
{
result += _stringGenerator.GenerateInstance(instanceGenerator, request);
}
return(result.Substring(0, _length));
}
public T GenerateInstance(InstanceGenerator instanceGenerator, GenerationRequest request)
{
if (typeof(T).IsInterface)
{
return(ProxyGenerator.CreateInterfaceProxyWithoutTarget <T>(new ExplodingInterceptor()));
}
else
{
throw new Exception("Exploding instances can be created out of interfaces only!");
}
}
public string GenerateInstance(InstanceGenerator instanceGenerator, GenerationRequest request)
{
var result = string.Empty;
for (var i = 0; i < _maxLength; ++i)
{
result += _charGenerator.GenerateInstance(instanceGenerator, request);
}
return(result);
}
public byte GenerateInstance(InstanceGenerator instanceGenerator, GenerationRequest request)
{
byte digit = _digitGenerator.GenerateInstance(instanceGenerator, request);
while (digit == 0)
{
digit = _digitGenerator.GenerateInstance(instanceGenerator, request);
}
return(digit);
}
public async Task Generate_ReturnsOk_IfRequestIsCorrect()
{
var request = new GenerationRequest
{
DinosaursCount = 1,
SpeciesCount = 1,
};
var result = await _api.Generate <string>(request);
Assert.AreEqual(result.StatusCode, HttpStatusCode.OK);
}
/// <summary>
/// Shutting down the server is an inherently racy operation. The server can be started or stopped by
/// external parties at any time.
///
/// This function will return success if at any time in the function the server is determined to no longer
/// be running.
/// </summary>
internal async Task <int> RunShutdownAsync(string pipeName, bool waitForProcess = true, TimeSpan?timeout = null, CancellationToken cancellationToken = default(CancellationToken))
{
if (WasServerRunning(pipeName) == false)
{
// The server holds the mutex whenever it is running, if it's not open then the
// server simply isn't running.
return(CommonGenerator.Succeeded);
}
try
{
var realTimeout = timeout != null
? (int)timeout.Value.TotalMilliseconds
: Timeout.Infinite;
using (var client = await ConnectForShutdownAsync(pipeName, realTimeout).ConfigureAwait(false))
{
var request = GenerationRequest.CreateShutdown();
await request.WriteAsync(client, cancellationToken).ConfigureAwait(false);
var response = await GenerationResponse.ReadAsync(client, cancellationToken).ConfigureAwait(false);
var shutdownResponse = (ShutdownGenerationResponse)response;
if (waitForProcess)
{
try
{
var process = Process.GetProcessById(shutdownResponse.ServerProcessId);
process.WaitForExit();
}
catch (Exception)
{
// There is an inherent race here with the server process. If it has already shutdown
// by the time we try to access it then the operation has succeed.
}
}
}
return(CommonGenerator.Succeeded);
}
catch (Exception)
{
if (WasServerRunning(pipeName) == false)
{
// If the server was in the process of shutting down when we connected then it's reasonable
// for an exception to happen. If the mutex has shutdown at this point then the server
// is shut down.
return(CommonGenerator.Succeeded);
}
return(CommonGenerator.Failed);
}
}
public string GenerateInstance(InstanceGenerator instanceGenerator, GenerationRequest request)
{
string result = _alphaChar.GenerateInstance(instanceGenerator, request).ToString(CultureInfo.InvariantCulture);
for (var i = 0; i < 5; ++i)
{
result += _digitChar.GenerateInstance(instanceGenerator, request);
result += _alphaChar.GenerateInstance(instanceGenerator, request);
}
return(result);
}
protected override bool ProcessCache(GenerationRequest request, HttpContext context)
{
var cache = this.GetCacheName(request, context, "json");
if (File.Exists(cache))
{
context.Response.ContentType = "application/json";
context.Response.TransmitFile(cache);
return(true);
}
return(false);
}
public object Apply(InstanceGenerator instanceGenerator, GenerationRequest request, Type type)
{
var result = _proxyGenerator.CreateClassProxy(
type,
_fallbackTypeGenerator.GenerateConstructorParameters(instanceGenerator.Instance, request, type).ToArray(),
new AbstractClassInterceptor(_generation,
instanceGenerator.Instance, request));
_fallbackTypeGenerator.CustomizeCreatedValue(result, instanceGenerator, request, type);
return(result);
}
protected override bool ProcessCache(GenerationRequest request, HttpContext context)
{
var cache = this.GetCacheName(request, context, "json");
if (File.Exists(cache))
{
context.Response.ContentType = "application/json";
context.Response.TransmitFile(cache);
return true;
}
return false;
}
private void ApplyCustomizations(IFixture generator, InstanceGenerator gen, GenerationRequest request)
{
Monitor.Enter(_syncRoot);
try
{
generator.Customizations.Insert(0, new CustomizationRelay(gen, request));
}
catch
{
Monitor.Exit(_syncRoot);
throw;
}
}
public object Resolve(InstanceGenerator instanceGenerator, GenerationRequest request, Type type)
{
foreach (var resolution in _resolutions)
{
if (resolution.AppliesTo(type))
{
request.Trace.SelectedResolution(type, resolution);
return(resolution.Apply(instanceGenerator, request, type));
}
}
throw new ChainFailedException(type);
}
private void SaveToCache(Image bitmap, GenerationRequest request, HttpContext context)
{
try
{
context.Response.ContentType = "image/png";
bitmap.Save(context.Response.OutputStream, ImageFormat.Png);
var cache = this.GetCacheName(request, context, "png");
if (cache != null)
{
try
{
using (var stream = new FileStream(cache, FileMode.CreateNew))
bitmap.Save(stream, ImageFormat.Png);
}
catch (Exception)
{
}
}
}
finally
{
bitmap.Dispose();
}
}
public override sealed void ProcessRequest(HttpContext context)
{
// Read in provided parameters, using either the fast or slow
// API URLs.
GenerationRequest request;
if (context.Request.Url.AbsolutePath.StartsWith("/api-v1/", StringComparison.Ordinal))
{
// The format of this URL allows Nginx to automatically
// serve the resource if it already exists, which the
// query string version does not. However it means that
// we have to parse out the path components of the request
// so that we have the information we want.
var components = context.Request.Url.AbsolutePath.Substring("/api-v1/".Length).Split('/');
if (components.Length != 7)
throw new HttpException(500, "Not enough URL components to determine request.");
request = new GenerationRequest
{
X = Convert.ToInt64(components[2]),
Y = Convert.ToInt64(components[3]),
Z = Convert.ToInt64(components[4]),
Size = Convert.ToInt32(components[5]),
Seed = Convert.ToInt64(components[1]),
LayerName = HttpUtility.UrlDecode(components[0]),
Packed = components[6].Contains("_packed"),
AsSquare = components[6].Contains("_square")
};
if (request.LayerName.Contains(".") || request.LayerName.Contains("/"))
throw new HttpException("Layer name is not valid.");
var permittedNames = new[]
{
"get.png",
"get_square.png",
"get.json",
"get_packed.json"
};
if (!permittedNames.Contains(components[6]))
{
var message =
"The final component of the URL must be one of {" +
permittedNames.Aggregate((a, b) => a + ", " + b) +
"} for fast caching to work.";
throw new HttpException(
500,
message);
}
}
else
{
request = new GenerationRequest
{
X = Convert.ToInt64(context.Request.QueryString["x"]),
Y = Convert.ToInt64(context.Request.QueryString["y"]),
Z = Convert.ToInt64(context.Request.QueryString["z"]),
Size = Convert.ToInt32(context.Request.QueryString["size"]),
Seed = Convert.ToInt64(context.Request.QueryString["seed"]),
LayerName = context.Request.QueryString["layer"],
Packed = Convert.ToBoolean(context.Request.QueryString["packed"]),
AsSquare = Convert.ToBoolean(context.Request.QueryString["as_square"])
};
}
// Force the size to be 64x64x64.
request.Size = Math.Max(0, request.Size);
request.Size = Math.Min(request.Size, 128);
// Load the configuration.
var layer = this.CreateLayerFromConfig(context.Server.MapPath("~/bin/WorldConfig.xml"), request);
if (layer == null)
throw new HttpException(404, "The layer name was invalid");
// Handle with cache if possible.
if (this.ProcessCache(request, context))
return;
// Generate the requested data.
int computations;
layer.SetSeed(request.Seed);
var start = DateTime.Now;
var data = layer.GenerateData(
request.X,
request.Y,
layer.Algorithm.Is2DOnly ? 0 : request.Z,
request.Size,
request.Size,
layer.Algorithm.Is2DOnly ? 1 : request.Size,
out computations);
var end = DateTime.Now;
// Store the result.
var generation = new GenerationResult
{
Request = request,
Layer = layer,
Data = data,
Computations = computations,
TotalTime = end - start
};
// 3D layers can be optimized to empty results.
if (!layer.Algorithm.Is2DOnly && DataIsAllSame(data))
{
this.ProcessEmpty(generation, context);
return;
}
// Handle with generation processing.
this.ProcessGeneration(generation, context);
}
private RuntimeLayer CreateLayerFromConfig(string path, GenerationRequest request)
{
// Use StorageAccess to load reference to world generation.
StorageLayer[] layers;
using (var reader = new StreamReader(path))
layers = this.StorageAccess.LoadStorage(reader);
foreach (var layer in layers)
if ((layer.Algorithm is AlgorithmResult) &&
(layer.Algorithm as AlgorithmResult).Name == request.LayerName &&
((layer.Algorithm as AlgorithmResult).ShowInMakeMeAWorld ||
(layer.Algorithm as AlgorithmResult).PermitInMakeMeAWorld))
return this.StorageAccess.ToRuntime(layer);
return null;
}
/// <summary> /// Processes a request by checking the cache and handling it if possible. Returns /// true if the request has been handled by the cache. /// </summary> protected abstract bool ProcessCache(GenerationRequest request, HttpContext context);
protected string GetCacheName(GenerationRequest request, HttpContext context, string extension)
{
if (request.LayerName.Contains(".") || request.LayerName.Contains("/"))
throw new HttpException("Layer name is not valid.");
var cacheComponents = new string[]
{
"~",
"App_Cache",
"api-v1",
request.LayerName,
request.Seed.ToString(),
request.X.ToString(),
request.Y.ToString(),
request.Z.ToString(),
request.Size.ToString(),
"get" + (request.AsSquare ? "_square" : string.Empty) +
(request.Packed ? "_packed" : string.Empty) + "." + extension
};
for (var i = 0; i < cacheComponents.Length - 1; i++)
{
var path = context.Server.MapPath(cacheComponents.Where((x, id) => id <= i).Aggregate((a, b) => a + "/" + b));
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
}
return context.Server.MapPath(cacheComponents.Aggregate((a, b) => a + "/" + b));
}
