public IISContextFactory(MemoryPool <byte> memoryPool, IHttpApplication <T> application, IISOptions options, IISHttpServer server)
{
_application = application;
_memoryPool = memoryPool;
_options = options;
_server = server;
}
internal unsafe IISHttpContext(MemoryPool <byte> memoryPool, IntPtr pInProcessHandler, IISOptions options, IISHttpServer server)
: base((HttpApiTypes.HTTP_REQUEST *)NativeMethods.HttpGetRawRequest(pInProcessHandler))
{
_memoryPool = memoryPool;
_pInProcessHandler = pInProcessHandler;
_options = options;
_server = server;
}
internal unsafe IISHttpContext(MemoryPool <byte> memoryPool, IntPtr pInProcessHandler, IISOptions options, IISHttpServer server)
: base((HttpApiTypes.HTTP_REQUEST *)NativeMethods.http_get_raw_request(pInProcessHandler))
{
_thisHandle = GCHandle.Alloc(this);
_memoryPool = memoryPool;
_pInProcessHandler = pInProcessHandler;
_server = server;
NativeMethods.http_set_managed_context(pInProcessHandler, (IntPtr)_thisHandle);
unsafe
{
Method = GetVerb();
RawTarget = GetRawUrl();
// TODO version is slow.
HttpVersion = GetVersion();
Scheme = SslStatus != SslStatus.Insecure ? Constants.HttpsScheme : Constants.HttpScheme;
KnownMethod = VerbId;
var originalPath = RequestUriBuilder.DecodeAndUnescapePath(GetRawUrlInBytes());
if (KnownMethod == HttpApiTypes.HTTP_VERB.HttpVerbOPTIONS && string.Equals(RawTarget, "*", StringComparison.Ordinal))
{
PathBase = string.Empty;
Path = string.Empty;
}
else
{
// Path and pathbase are unescaped by RequestUriBuilder
// The UsePathBase middleware will modify the pathbase and path correctly
PathBase = string.Empty;
Path = originalPath;
}
var cookedUrl = GetCookedUrl();
QueryString = cookedUrl.GetQueryString() ?? string.Empty;
// TODO: Avoid using long.ToString, it's pretty slow
RequestConnectionId = ConnectionId.ToString(CultureInfo.InvariantCulture);
// Copied from WebListener
// This is the base GUID used by HTTP.SYS for generating the activity ID.
// HTTP.SYS overwrites the first 8 bytes of the base GUID with RequestId to generate ETW activity ID.
// The requestId should be set by the NativeRequestContext
var guid = new Guid(0xffcb4c93, 0xa57f, 0x453c, 0xb6, 0x3f, 0x84, 0x71, 0xc, 0x79, 0x67, 0xbb);
*((ulong *)&guid) = RequestId;
// TODO: Also make this not slow
TraceIdentifier = guid.ToString();
var localEndPoint = GetLocalEndPoint();
LocalIpAddress = localEndPoint.GetIPAddress();
LocalPort = localEndPoint.GetPort();
var remoteEndPoint = GetRemoteEndPoint();
RemoteIpAddress = remoteEndPoint.GetIPAddress();
RemotePort = remoteEndPoint.GetPort();
StatusCode = 200;
RequestHeaders = new RequestHeaders(this);
HttpResponseHeaders = new HeaderCollection();
ResponseHeaders = HttpResponseHeaders;
if (options.ForwardWindowsAuthentication)
{
WindowsUser = GetWindowsPrincipal();
if (options.AutomaticAuthentication)
{
User = WindowsUser;
}
}
ResetFeatureCollection();
// Check if the Http upgrade feature is available in IIS.
// To check this, we can look at the server variable WEBSOCKET_VERSION
// And see if there is a version. Same check that Katana did:
// https://github.com/aspnet/AspNetKatana/blob/9f6e09af6bf203744feb5347121fe25f6eec06d8/src/Microsoft.Owin.Host.SystemWeb/OwinAppContext.cs#L125
// Actively not locking here as acquiring a lock on every request will hurt perf more than checking the
// server variables a few extra times if a bunch of requests hit the server at the same time.
if (_websocketAvailability == WebsocketAvailabilityStatus.Uninitialized)
{
NativeMethods.http_get_server_variable(pInProcessHandler, WebSocketVersionString, out var webSocketsSupported);
var webSocketsAvailable = !string.IsNullOrEmpty(webSocketsSupported);
_websocketAvailability = webSocketsAvailable ?
WebsocketAvailabilityStatus.Available :
WebsocketAvailabilityStatus.NotAvailable;
}
if (_websocketAvailability == WebsocketAvailabilityStatus.NotAvailable)
{
_currentIHttpUpgradeFeature = null;
}
}
RequestBody = new IISHttpRequestBody(this);
ResponseBody = new IISHttpResponseBody(this);
Input = new Pipe(new PipeOptions(_memoryPool, readerScheduler: PipeScheduler.ThreadPool, minimumSegmentSize: MinAllocBufferSize));
var pipe = new Pipe(new PipeOptions(
_memoryPool,
readerScheduler: PipeScheduler.ThreadPool,
pauseWriterThreshold: PauseWriterThreshold,
resumeWriterThreshold: ResumeWriterTheshold,
minimumSegmentSize: MinAllocBufferSize));
Output = new OutputProducer(pipe);
}
public IISHttpContextOfT(MemoryPool <byte> memoryPool, IHttpApplication <TContext> application, IntPtr pInProcessHandler, IISOptions options, IISHttpServer server)
: base(memoryPool, pInProcessHandler, options, server)
{
_application = application;
}