// Use this to save the blob from dispose if this object was never used (never given to a user) and is about to be
// disposed.
internal void DetachBlob(NativeRequestContext memoryBlob)
{
if (memoryBlob != null && (object)memoryBlob == (object)_nativeRequestContext)
{
_nativeRequestContext = null;
}
}
internal unsafe bool ValidateRequest(NativeRequestContext requestMemory)
{
// Block potential DOS attacks
if (requestMemory.RequestBlob->Headers.UnknownHeaderCount > UnknownHeaderLimit)
{
SendError(requestMemory.RequestBlob->RequestId, HttpStatusCode.BadRequest, authChallenges: null);
return(false);
}
return(true);
}
internal RequestContext(WebListener server, NativeRequestContext memoryBlob)
{
// TODO: Verbose log
_server = server;
_memoryBlob = memoryBlob;
_request = new Request(this, _memoryBlob);
_response = new Response(this);
_request.ReleasePins();
AuthenticationChallenges = server.AuthenticationManager.AuthenticationSchemes & ~AuthenticationSchemes.AllowAnonymous;
}
internal unsafe bool ValidateAuth(NativeRequestContext requestMemory)
{
var requestV2 = (UnsafeNclNativeMethods.HttpApi.HTTP_REQUEST_V2 *)requestMemory.RequestBlob;
if (!AuthenticationManager.AllowAnonymous && !AuthenticationManager.CheckAuthenticated(requestV2->pRequestInfo))
{
SendError(requestMemory.RequestBlob->RequestId, HttpStatusCode.Unauthorized,
AuthenticationManager.GenerateChallenges(AuthenticationManager.AuthenticationSchemes));
return(false);
}
return(true);
}
// should only be called from RequestContext
internal void Dispose()
{
// TODO: Verbose log
_isDisposed = true;
NativeRequestContext memoryBlob = _nativeRequestContext;
if (memoryBlob != null)
{
memoryBlob.Dispose();
_nativeRequestContext = null;
}
if (_nativeStream != null)
{
_nativeStream.Dispose();
}
}
internal unsafe Request(RequestContext httpContext, NativeRequestContext memoryBlob)
{
// TODO: Verbose log
_requestContext = httpContext;
_nativeRequestContext = memoryBlob;
_contentBoundaryType = BoundaryType.None;
// Set up some of these now to avoid refcounting on memory blob later.
_requestId = memoryBlob.RequestBlob->RequestId;
_connectionId = memoryBlob.RequestBlob->ConnectionId;
_contextId = memoryBlob.RequestBlob->UrlContext;
_sslStatus = memoryBlob.RequestBlob->pSslInfo == null ? SslStatus.Insecure :
memoryBlob.RequestBlob->pSslInfo->SslClientCertNegotiated == 0 ? SslStatus.NoClientCert :
SslStatus.ClientCert;
if (memoryBlob.RequestBlob->pRawUrl != null && memoryBlob.RequestBlob->RawUrlLength > 0)
{
_rawUrl = Marshal.PtrToStringAnsi((IntPtr)memoryBlob.RequestBlob->pRawUrl, memoryBlob.RequestBlob->RawUrlLength);
}
UnsafeNclNativeMethods.HttpApi.HTTP_COOKED_URL cookedUrl = memoryBlob.RequestBlob->CookedUrl;
if (cookedUrl.pHost != null && cookedUrl.HostLength > 0)
{
_cookedUrlHost = Marshal.PtrToStringUni((IntPtr)cookedUrl.pHost, cookedUrl.HostLength / 2);
}
if (cookedUrl.pAbsPath != null && cookedUrl.AbsPathLength > 0)
{
_cookedUrlPath = Marshal.PtrToStringUni((IntPtr)cookedUrl.pAbsPath, cookedUrl.AbsPathLength / 2);
}
if (cookedUrl.pQueryString != null && cookedUrl.QueryStringLength > 0)
{
_cookedUrlQuery = Marshal.PtrToStringUni((IntPtr)cookedUrl.pQueryString, cookedUrl.QueryStringLength / 2);
}
UrlPrefix prefix = httpContext.Server.UrlPrefixes.GetPrefix((int)_contextId);
string originalPath = RequestPath;
// These paths are both unescaped already.
if (originalPath.Length == prefix.Path.Length - 1)
{
// They matched exactly except for the trailing slash.
_pathBase = originalPath;
_path = string.Empty;
}
else
{
// url: /base/path, prefix: /base/, base: /base, path: /path
// url: /, prefix: /, base: , path: /
_pathBase = originalPath.Substring(0, prefix.Path.Length - 1);
_path = originalPath.Substring(prefix.Path.Length - 1);
}
int major = memoryBlob.RequestBlob->Version.MajorVersion;
int minor = memoryBlob.RequestBlob->Version.MinorVersion;
if (major == 1 && minor == 1)
{
_httpVersion = Constants.V1_1;
}
else if (major == 1 && minor == 0)
{
_httpVersion = Constants.V1_0;
}
else
{
_httpVersion = new Version(major, minor);
}
_httpMethod = UnsafeNclNativeMethods.HttpApi.GetVerb(RequestBuffer, OriginalBlobAddress);
_headers = new HeaderCollection(new RequestHeaders(_nativeRequestContext));
var requestV2 = (UnsafeNclNativeMethods.HttpApi.HTTP_REQUEST_V2 *)memoryBlob.RequestBlob;
_user = AuthenticationManager.GetUser(requestV2->pRequestInfo, requestV2->RequestInfoCount);
GetTlsTokenBindingInfo();
// TODO: Verbose log parameters
}
internal RequestHeaders(NativeRequestContext requestMemoryBlob)
{
_requestMemoryBlob = requestMemoryBlob;
}
internal AsyncAcceptContext(WebListener server)
{
_server = server;
_tcs = new TaskCompletionSource <RequestContext>();
_nativeRequestContext = new NativeRequestContext(this);
}