// This method is guaranteed to be called only once. If called with a non-zero userToken, the context is not flowed.
protected override void Complete(IntPtr userToken)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::Complete() _Context(set):" + (_context != null).ToString() + " userToken:" + userToken.ToString());
}
// If no flowing, just complete regularly.
if ((_flags & StateFlags.PostBlockStarted) == 0)
{
base.Complete(userToken);
return;
}
// At this point, IsCompleted is set and CompletedSynchronously is fixed. If it's synchronous, then we want to hold
// the completion for the CaptureOrComplete() call to avoid the context flow. If not, we know CaptureOrComplete() has completed.
if (CompletedSynchronously)
{
return;
}
ExecutionContext context = _context;
// If the context is being abandoned or wasn't captured (SuppressFlow, null AsyncCallback), just
// complete regularly, as long as CaptureOrComplete() has finished.
//
if (userToken != IntPtr.Zero || context == null)
{
base.Complete(userToken);
return;
}
ExecutionContext.Run(context, s => ((ContextAwareResult)s).CompleteCallback(), this);
}
internal virtual void Abort(Exception e)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("CommandStream" + LoggingHash.HashString(this) + "::Abort() - closing control Stream");
}
lock (this)
{
if (_aborted)
{
return;
}
_aborted = true;
}
try
{
base.Close(0);
}
finally
{
if (e != null)
{
InvokeRequestCallback(e);
}
else
{
InvokeRequestCallback(null);
}
}
}
public static SecurityStatusPal EncryptMessage(SafeDeleteContext securityContext, byte[] writeBuffer, int size, int headerSize, int trailerSize, out int resultSize)
{
// Encryption using SCHANNEL requires 4 buffers: header, payload, trailer, empty.
SecurityBuffer[] securityBuffer = new SecurityBuffer[4];
securityBuffer[0] = new SecurityBuffer(writeBuffer, 0, headerSize, SecurityBufferType.Header);
securityBuffer[1] = new SecurityBuffer(writeBuffer, headerSize, size, SecurityBufferType.Data);
securityBuffer[2] = new SecurityBuffer(writeBuffer, headerSize + size, trailerSize, SecurityBufferType.Trailer);
securityBuffer[3] = new SecurityBuffer(null, SecurityBufferType.Empty);
int errorCode = SSPIWrapper.EncryptMessage(GlobalSSPI.SSPISecureChannel, securityContext, securityBuffer, 0);
if (errorCode != 0)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt ERROR" + errorCode.ToString("x"));
}
resultSize = 0;
}
else
{
// The full buffer may not be used.
resultSize = securityBuffer[0].size + securityBuffer[1].size + securityBuffer[2].size;
}
return(GetSecurityStatusPalFromWin32Int(errorCode));
}
internal SafeDeleteContext GetContext(out SecurityStatusPal status)
{
status = new SecurityStatusPal(SecurityStatusPalErrorCode.OK);
if (!(IsCompleted && IsValidContext))
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("NTAuthentication#{0}::GetContextToken|Should be called only when completed with success, currently is not!", LoggingHash.HashString(this));
}
Debug.Fail("NTAuthentication#" + LoggingHash.HashString(this) + "::GetContextToken |Should be called only when completed with success, currently is not!");
}
if (!IsServer)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("NTAuthentication#{0}::GetContextToken|The method must not be called by the client side!", LoggingHash.HashString(this));
}
Debug.Fail("NTAuthentication#" + LoggingHash.HashString(this) + "::GetContextToken |The method must not be called by the client side!");
}
if (!IsValidContext)
{
status = new SecurityStatusPal(SecurityStatusPalErrorCode.InvalidHandle);
return(null);
}
return(_securityContext);
}
public static SafeFreeContextBufferChannelBinding QueryContextChannelBinding(SSPIInterface secModule, SafeDeleteContext securityContext, Interop.SspiCli.ContextAttribute contextAttribute)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("QueryContextChannelBinding", contextAttribute.ToString());
}
SafeFreeContextBufferChannelBinding result;
int errorCode = secModule.QueryContextChannelBinding(securityContext, contextAttribute, out result);
if (errorCode != 0)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("QueryContextChannelBinding", "ERROR = " + ErrorDescription(errorCode));
}
return(null);
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("QueryContextChannelBinding", LoggingHash.HashString(result));
}
return(result);
}
private object _event; // Lazy allocated event to be returned in the IAsyncResult for the client to wait on.
internal LazyAsyncResult(object myObject, object myState, AsyncCallback myCallBack)
{
_asyncObject = myObject;
_asyncState = myState;
_asyncCallback = myCallBack;
_result = DBNull.Value;
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::.ctor()");
}
public static SecurityStatusPal EncryptMessage(SafeDeleteContext securityContext, byte[] input, int offset, int size, int headerSize, int trailerSize, ref byte[] output, out int resultSize)
{
// Ensure that there is sufficient space for the message output.
try
{
int bufferSizeNeeded = checked (size + headerSize + trailerSize);
if (output == null || output.Length < bufferSizeNeeded)
{
output = new byte[bufferSizeNeeded];
}
}
catch (Exception e)
{
if (!ExceptionCheck.IsFatal(e))
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt", "Arguments out of range.");
}
Debug.Fail("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt", "Arguments out of range.");
}
throw;
}
byte[] writeBuffer = output;
// Copy the input into the output buffer to prepare for SCHANNEL's expectations
Buffer.BlockCopy(input, offset, writeBuffer, headerSize, size);
// Encryption using SCHANNEL requires 4 buffers: header, payload, trailer, empty.
SecurityBuffer[] securityBuffer = new SecurityBuffer[4];
securityBuffer[0] = new SecurityBuffer(writeBuffer, 0, headerSize, SecurityBufferType.Header);
securityBuffer[1] = new SecurityBuffer(writeBuffer, headerSize, size, SecurityBufferType.Data);
securityBuffer[2] = new SecurityBuffer(writeBuffer, headerSize + size, trailerSize, SecurityBufferType.Trailer);
securityBuffer[3] = new SecurityBuffer(null, SecurityBufferType.Empty);
int errorCode = SSPIWrapper.EncryptMessage(GlobalSSPI.SSPISecureChannel, securityContext, securityBuffer, 0);
if (errorCode != 0)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt ERROR" + errorCode.ToString("x"));
}
resultSize = 0;
}
else
{
// The full buffer may not be used.
resultSize = securityBuffer[0].size + securityBuffer[1].size + securityBuffer[2].size;
}
return(SecurityStatusAdapterPal.GetSecurityStatusPalFromNativeInt(errorCode));
}
//
// Used only by client SSL code, never returns null.
//
internal static string[] GetRequestCertificateAuthorities(SafeDeleteContext securityContext)
{
Interop.SspiCli.IssuerListInfoEx issuerList =
(Interop.SspiCli.IssuerListInfoEx)SSPIWrapper.QueryContextAttributes(
GlobalSSPI.SSPISecureChannel,
securityContext,
Interop.SspiCli.ContextAttribute.IssuerListInfoEx);
string[] issuers = Array.Empty <string>();
try
{
if (issuerList.cIssuers > 0)
{
unsafe
{
uint count = issuerList.cIssuers;
issuers = new string[issuerList.cIssuers];
Interop.SspiCli._CERT_CHAIN_ELEMENT *pIL = (Interop.SspiCli._CERT_CHAIN_ELEMENT *)issuerList.aIssuers.DangerousGetHandle();
for (int i = 0; i < count; ++i)
{
Interop.SspiCli._CERT_CHAIN_ELEMENT *pIL2 = pIL + i;
if (GlobalLog.IsEnabled && pIL2->cbSize <= 0)
{
GlobalLog.Assert("SecureChannel::GetIssuers()", "Interop.SspiCli._CERT_CHAIN_ELEMENT size is not positive: " + pIL2->cbSize.ToString());
}
if (pIL2->cbSize > 0)
{
uint size = pIL2->cbSize;
byte * ptr = (byte *)(pIL2->pCertContext);
byte[] x = new byte[size];
for (int j = 0; j < size; j++)
{
x[j] = *(ptr + j);
}
X500DistinguishedName x500DistinguishedName = new X500DistinguishedName(x);
issuers[i] = x500DistinguishedName.Name;
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SecureChannel#" + LoggingHash.HashString(securityContext) + "::GetIssuers() IssuerListEx[" + i + "]:" + issuers[i]);
}
}
}
}
}
}
finally
{
if (issuerList.aIssuers != null)
{
issuerList.aIssuers.Dispose();
}
}
return(issuers);
}
private void CompleteCallback()
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::CompleteCallback() Context set, calling callback.");
}
base.Complete(IntPtr.Zero);
}
// NOTE: THIS METHOD MUST NOT BE CALLED DIRECTLY.
//
// This method does the callback's job and is guaranteed to be called exactly once.
// A derived overriding method must call the base class somewhere or the completion is lost.
protected virtual void Complete(IntPtr userToken)
{
bool offloaded = false;
ThreadContext threadContext = CurrentThreadContext;
try
{
bool globalLogEnabled = GlobalLog.IsEnabled;
++threadContext._nestedIOCount;
if (_asyncCallback != null)
{
if (globalLogEnabled)
{
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::Complete() invoking callback");
}
if (threadContext._nestedIOCount >= ForceAsyncCount)
{
if (globalLogEnabled)
{
GlobalLog.Print("LazyAsyncResult::Complete *** OFFLOADED the user callback ***");
}
Task.Factory.StartNew(
s => WorkerThreadComplete(s),
this,
CancellationToken.None,
TaskCreationOptions.DenyChildAttach,
TaskScheduler.Default);
offloaded = true;
}
else
{
_asyncCallback(this);
}
}
else if (globalLogEnabled)
{
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::Complete() no callback to invoke");
}
}
finally
{
--threadContext._nestedIOCount;
// Never call this method unless interlocked _intCompleted check has succeeded (like in this case).
if (!offloaded)
{
Cleanup();
}
}
}
protected override void Cleanup()
{
base.Cleanup();
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::Cleanup()");
}
CleanupInternal();
}
private int DecryptNtlm(byte[] payload, int offset, int count, out int newOffset, uint expectedSeqNumber)
{
// For the most part the arguments are verified in Encrypt().
if (count < 16)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("NTAuthentication#" + LoggingHash.HashString(this) + "::DecryptNtlm", "Argument 'count' out of range.");
}
Debug.Fail("NTAuthentication#" + LoggingHash.HashString(this) + "::DecryptNtlm", "Argument 'count' out of range.");
throw new ArgumentOutOfRangeException(nameof(count));
}
var securityBuffer = new SecurityBuffer[2];
securityBuffer[0] = new SecurityBuffer(payload, offset, 16, SecurityBufferType.Token);
securityBuffer[1] = new SecurityBuffer(payload, offset + 16, count - 16, SecurityBufferType.Data);
int errorCode;
SecurityBufferType realDataType = SecurityBufferType.Data;
if (IsConfidentialityFlag)
{
errorCode = SSPIWrapper.DecryptMessage(GlobalSSPI.SSPIAuth, _securityContext, securityBuffer, expectedSeqNumber);
}
else
{
realDataType |= SecurityBufferType.ReadOnlyFlag;
securityBuffer[1].type = realDataType;
errorCode = SSPIWrapper.VerifySignature(GlobalSSPI.SSPIAuth, _securityContext, securityBuffer, expectedSeqNumber);
}
if (errorCode != 0)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::Decrypt() throw Error = " + errorCode.ToString("x", NumberFormatInfo.InvariantInfo));
}
throw new Win32Exception(errorCode);
}
if (securityBuffer[1].type != realDataType)
{
throw new InternalException();
}
newOffset = securityBuffer[1].offset;
return(securityBuffer[1].size);
}
protected override void Cleanup()
{
base.Cleanup();
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::Cleanup()");
#if !NetNative
if (_windowsIdentity != null)
{
_windowsIdentity.Dispose();
_windowsIdentity = null;
}
#endif
}
protected override void Dispose(bool disposing)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("CommandStream" + LoggingHash.HashString(this) + "::Close()");
}
InvokeRequestCallback(null);
// Do not call base.Dispose(bool), which would close the web request.
// This stream effectively should be a wrapper around a web
// request that does not own the web request.
}
//
// Extracts a remote certificate upon request.
//
internal static X509Certificate2 GetRemoteCertificate(SafeDeleteContext securityContext, out X509Certificate2Collection remoteCertificateCollection)
{
remoteCertificateCollection = null;
if (securityContext == null)
{
return(null);
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("CertificateValidationPal.Windows SecureChannel#" + LoggingHash.HashString(securityContext) + "::GetRemoteCertificate()");
}
X509Certificate2 result = null;
SafeFreeCertContext remoteContext = null;
try
{
remoteContext = SSPIWrapper.QueryContextAttributes(GlobalSSPI.SSPISecureChannel, securityContext, Interop.SspiCli.ContextAttribute.RemoteCertificate) as SafeFreeCertContext;
if (remoteContext != null && !remoteContext.IsInvalid)
{
result = new X509Certificate2(remoteContext.DangerousGetHandle());
}
}
finally
{
if (remoteContext != null && !remoteContext.IsInvalid)
{
remoteCertificateCollection = UnmanagedCertificateContext.GetRemoteCertificatesFromStoreContext(remoteContext);
remoteContext.Dispose();
}
}
if (SecurityEventSource.Log.IsEnabled())
{
SecurityEventSource.Log.RemoteCertificate(result == null ? "null" : result.ToString(true));
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("CertificateValidationPal.Windows SecureChannel#" + LoggingHash.HashString(securityContext) + "::GetRemoteCertificate()", (result == null ? "null" : result.Subject));
}
return(result);
}
// If ContextCopy or Identity will be used, the return value should be locked until FinishPostingAsyncOp() is called
// or the operation has been aborted (e.g. by BeginXxx throwing). Otherwise, this can be called with false to prevent the lock
// object from being created.
internal object StartPostingAsyncOp(bool lockCapture)
{
if (InternalPeekCompleted)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("ContextAwareResult#{0}::StartPostingAsyncOp|Called on completed result.", LoggingHash.HashString(this));
}
Debug.Fail("ContextAwareResult#" + LoggingHash.HashString(this) + "::StartPostingAsyncOp |Called on completed result.");
}
DebugProtectState(true);
_lock = lockCapture ? new object() : null;
_flags |= StateFlags.PostBlockStarted;
return(_lock);
}
// A method for completing the IO with a result and invoking the user's callback.
// Used by derived classes to pass context into an overridden Complete(). Useful
// for determining the 'winning' thread in case several may simultaneously call
// the equivalent of InvokeCallback().
protected void ProtectedInvokeCallback(object result, IntPtr userToken)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::ProtectedInvokeCallback() result = " +
(result is Exception ? ((Exception)result).Message : result == null ? "<null>" : result.ToString()) +
", userToken:" + userToken.ToString());
}
// Critical to disallow DBNull here - it could result in a stuck spinlock in WaitForCompletion.
if (result == DBNull.Value)
{
throw new ArgumentNullException("result");
}
#if DEBUG
// Always safe to ask for the state now.
_protectState = false;
#endif
if ((_intCompleted & ~HighBit) == 0 && (Interlocked.Increment(ref _intCompleted) & ~HighBit) == 1)
{
// DBNull.Value is used to guarantee that the first caller wins,
// even if the result was set to null.
if (_result == DBNull.Value)
{
_result = result;
}
ManualResetEvent asyncEvent = (ManualResetEvent)_event;
if (asyncEvent != null)
{
try
{
asyncEvent.Set();
}
catch (ObjectDisposedException)
{
// Simply ignore this exception - There is apparently a rare race condition
// where the event is disposed before the completion method is called.
}
}
Complete(userToken);
}
}
internal FtpDataStream(NetworkStream networkStream, FtpWebRequest request, TriState writeOnly)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("FtpDataStream#" + LoggingHash.HashString(this) + "::FtpDataStream");
}
_readable = true;
_writeable = true;
if (writeOnly == TriState.True)
{
_readable = false;
}
else if (writeOnly == TriState.False)
{
_writeable = false;
}
_networkStream = networkStream;
_request = request;
}
// Allows creating a pre-completed result with less interlockeds. Beware! Constructor calls the callback.
// If a derived class ever uses this and overloads Cleanup, this may need to change.
internal LazyAsyncResult(object myObject, object myState, AsyncCallback myCallBack, object result)
{
GlobalLog.Assert(result != DBNull.Value, "LazyAsyncResult#{0}::.ctor()|Result can't be set to DBNull - it's a special internal value.", LoggingHash.HashString(this));
_asyncObject = myObject;
_asyncState = myState;
_asyncCallback = myCallBack;
_result = result;
_intCompleted = 1;
if (_asyncCallback != null)
{
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::Complete() invoking callback");
_asyncCallback(this);
}
else
{
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::Complete() no callback to invoke");
}
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::.ctor() (pre-completed)");
}
internal FtpWebResponse(Stream responseStream, long contentLength, Uri responseUri, FtpStatusCode statusCode, string statusLine, DateTime lastModified, string bannerMessage, string welcomeMessage, string exitMessage)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("FtpWebResponse#" + LoggingHash.HashString(this) + "::.ctor(" + contentLength.ToString() + "," + statusLine + ")");
}
_responseStream = responseStream;
if (responseStream == null && contentLength < 0)
{
contentLength = 0;
}
_contentLength = contentLength;
_responseUri = responseUri;
_statusCode = statusCode;
_statusLine = statusLine;
_lastModified = lastModified;
_bannerMessage = bannerMessage;
_welcomeMessage = welcomeMessage;
_exitMessage = exitMessage;
}
private void Initialize(bool isServer, string package, NetworkCredential credential, string spn, ContextFlagsPal requestedContextFlags, ChannelBinding channelBinding)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::.ctor() package:" + LoggingHash.ObjectToString(package) + " spn:" + LoggingHash.ObjectToString(spn) + " flags :" + requestedContextFlags.ToString());
}
_tokenSize = NegotiateStreamPal.QueryMaxTokenSize(package);
_isServer = isServer;
_spn = spn;
_securityContext = null;
_requestedContextFlags = requestedContextFlags;
_package = package;
_channelBinding = channelBinding;
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("Peer SPN-> '" + _spn + "'");
}
//
// Check if we're using DefaultCredentials.
//
Debug.Assert(CredentialCache.DefaultCredentials == CredentialCache.DefaultNetworkCredentials);
if (credential == CredentialCache.DefaultCredentials)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::.ctor(): using DefaultCredentials");
}
_credentialsHandle = NegotiateStreamPal.AcquireDefaultCredential(package, _isServer);
}
else
{
_credentialsHandle = NegotiateStreamPal.AcquireCredentialsHandle(package, _isServer, credential);
}
}
// This will return a client token when conducted authentication on server side.
// This token can be used for impersonation. We use it to create a WindowsIdentity and hand it out to the server app.
internal SecurityContextTokenHandle GetContextToken(out Interop.SecurityStatus status)
{
if (!(IsCompleted && IsValidContext))
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("NTAuthentication#{0}::GetContextToken|Should be called only when completed with success, currently is not!", LoggingHash.HashString(this));
}
Debug.Fail("NTAuthentication#" + LoggingHash.HashString(this) + "::GetContextToken |Should be called only when completed with success, currently is not!");
}
if (!IsServer)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("NTAuthentication#{0}::GetContextToken|The method must not be called by the client side!", LoggingHash.HashString(this));
}
Debug.Fail("NTAuthentication#" + LoggingHash.HashString(this) + "::GetContextToken |The method must not be called by the client side!");
}
if (!IsValidContext)
{
throw new Win32Exception((int)Interop.SecurityStatus.InvalidHandle);
}
SecurityContextTokenHandle token = null;
status = (Interop.SecurityStatus)SSPIWrapper.QuerySecurityContextToken(
GlobalSSPI.SSPIAuth,
_securityContext,
out token);
return(token);
}
internal CookieCollection CookieCutter(Uri uri, string headerName, string setCookieHeader, bool isThrow)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("CookieContainer#" + LoggingHash.HashString(this) + "::CookieCutter() uri:" + uri + " headerName:" + headerName + " setCookieHeader:" + setCookieHeader + " isThrow:" + isThrow);
}
CookieCollection cookies = new CookieCollection();
CookieVariant variant = CookieVariant.Unknown;
if (headerName == null)
{
variant = CookieVariant.Default;
}
else
{
for (int i = 0; i < s_headerInfo.Length; ++i)
{
if ((String.Compare(headerName, s_headerInfo[i].Name, StringComparison.OrdinalIgnoreCase) == 0))
{
variant = s_headerInfo[i].Variant;
}
}
}
bool isLocalDomain = IsLocalDomain(uri.Host);
try
{
CookieParser parser = new CookieParser(setCookieHeader);
do
{
Cookie cookie = parser.Get();
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("CookieContainer#" + LoggingHash.HashString(this) + "::CookieCutter() CookieParser returned cookie:" + LoggingHash.ObjectToString(cookie));
}
if (cookie == null)
{
break;
}
// Parser marks invalid cookies this way
if (String.IsNullOrEmpty(cookie.Name))
{
if (isThrow)
{
throw new CookieException(SR.net_cookie_format);
}
// Otherwise, ignore (reject) cookie
continue;
}
// This will set the default values from the response URI
// AND will check for cookie validity
if (!cookie.VerifySetDefaults(variant, uri, isLocalDomain, _fqdnMyDomain, true, isThrow))
{
continue;
}
// If many same cookies arrive we collapse them into just one, hence setting
// parameter isStrict = true below
cookies.InternalAdd(cookie, true);
} while (true);
}
catch (OutOfMemoryException)
{
throw;
}
catch (Exception e)
{
if (isThrow)
{
throw new CookieException(SR.Format(SR.net_cookie_parse_header, uri.AbsoluteUri), e);
}
}
foreach (Cookie c in cookies)
{
Add(c, isThrow);
}
return(cookies);
}
//
// Extracts a remote certificate upon request.
//
internal static X509Certificate2 GetRemoteCertificate(SafeDeleteContext securityContext, out X509Certificate2Collection remoteCertificateStore)
{
remoteCertificateStore = null;
bool gotReference = false;
if (securityContext == null)
{
return(null);
}
GlobalLog.Enter("CertificateValidationPal.Unix SecureChannel#" + LoggingHash.HashString(securityContext) + "::GetRemoteCertificate()");
X509Certificate2 result = null;
SafeFreeCertContext remoteContext = null;
try
{
int errorCode = QueryContextRemoteCertificate(securityContext, out remoteContext);
if (remoteContext != null && !remoteContext.IsInvalid)
{
remoteContext.DangerousAddRef(ref gotReference);
result = new X509Certificate2(remoteContext.DangerousGetHandle());
}
remoteCertificateStore = new X509Certificate2Collection();
using (SafeSharedX509StackHandle chainStack =
Interop.OpenSsl.GetPeerCertificateChain(securityContext.SslContext))
{
if (!chainStack.IsInvalid)
{
int count = Interop.Crypto.GetX509StackFieldCount(chainStack);
for (int i = 0; i < count; i++)
{
IntPtr certPtr = Interop.Crypto.GetX509StackField(chainStack, i);
if (certPtr != IntPtr.Zero)
{
// X509Certificate2(IntPtr) calls X509_dup, so the reference is appropriately tracked.
X509Certificate2 chainCert = new X509Certificate2(certPtr);
remoteCertificateStore.Add(chainCert);
}
}
}
}
}
finally
{
if (gotReference)
{
remoteContext.DangerousRelease();
}
if (remoteContext != null)
{
remoteContext.Dispose();
}
}
if (SecurityEventSource.Log.IsEnabled())
{
SecurityEventSource.Log.RemoteCertificate(result == null ? "null" : result.ToString(true));
}
GlobalLog.Leave("CertificateValidationPal.Unix SecureChannel#" + LoggingHash.HashString(securityContext) + "::GetRemoteCertificate()", (result == null ? "null" : result.Subject));
return(result);
}
// Accepts an incoming binary security blob and returns an outgoing binary security blob.
internal byte[] GetOutgoingBlob(byte[] incomingBlob, bool throwOnError, out SecurityStatusPal statusCode)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", ((incomingBlob == null) ? "0" : incomingBlob.Length.ToString(NumberFormatInfo.InvariantInfo)) + " bytes");
}
var list = new List <SecurityBuffer>(2);
if (incomingBlob != null)
{
list.Add(new SecurityBuffer(incomingBlob, SecurityBufferType.Token));
}
if (_channelBinding != null)
{
list.Add(new SecurityBuffer(_channelBinding));
}
SecurityBuffer[] inSecurityBufferArray = null;
if (list.Count > 0)
{
inSecurityBufferArray = list.ToArray();
}
var outSecurityBuffer = new SecurityBuffer(_tokenSize, SecurityBufferType.Token);
bool firstTime = _securityContext == null;
try
{
if (!_isServer)
{
// client session
statusCode = NegotiateStreamPal.InitializeSecurityContext(
_credentialsHandle,
ref _securityContext,
_spn,
_requestedContextFlags,
inSecurityBufferArray,
outSecurityBuffer,
ref _contextFlags);
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob() SSPIWrapper.InitializeSecurityContext() returns statusCode:0x" + ((int)statusCode.ErrorCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
}
if (statusCode.ErrorCode == SecurityStatusPalErrorCode.CompleteNeeded)
{
var inSecurityBuffers = new SecurityBuffer[1];
inSecurityBuffers[0] = outSecurityBuffer;
statusCode = NegotiateStreamPal.CompleteAuthToken(ref _securityContext, inSecurityBuffers);
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingDigestBlob() SSPIWrapper.CompleteAuthToken() returns statusCode:0x" + ((int)statusCode.ErrorCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
}
outSecurityBuffer.token = null;
}
}
else
{
// Server session.
statusCode = NegotiateStreamPal.AcceptSecurityContext(
_credentialsHandle,
ref _securityContext,
_requestedContextFlags,
inSecurityBufferArray,
outSecurityBuffer,
ref _contextFlags);
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob() SSPIWrapper.AcceptSecurityContext() returns statusCode:0x" + ((int)statusCode.ErrorCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
}
}
}
finally
{
//
// Assuming the ISC or ASC has referenced the credential on the first successful call,
// we want to decrement the effective ref count by "disposing" it.
// The real dispose will happen when the security context is closed.
// Note if the first call was not successful the handle is physically destroyed here.
//
if (firstTime && _credentialsHandle != null)
{
_credentialsHandle.Dispose();
}
}
if (NegoState.IsError(statusCode))
{
CloseContext();
_isCompleted = true;
if (throwOnError)
{
Exception exception = NegotiateStreamPal.CreateExceptionFromError(statusCode);
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", "Win32Exception:" + exception);
}
throw exception;
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", "null statusCode:0x" + ((int)statusCode.ErrorCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
}
return(null);
}
else if (firstTime && _credentialsHandle != null)
{
// Cache until it is pushed out by newly incoming handles.
SSPIHandleCache.CacheCredential(_credentialsHandle);
}
// The return value will tell us correctly if the handshake is over or not
if (statusCode.ErrorCode == SecurityStatusPalErrorCode.OK)
{
// Success.
_isCompleted = true;
}
else if (GlobalLog.IsEnabled)
{
// We need to continue.
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob() need continue statusCode:[0x" + ((int)statusCode.ErrorCode).ToString("x8", NumberFormatInfo.InvariantInfo) + "] (" + statusCode.ToString() + ") m_SecurityContext#" + LoggingHash.HashString(_securityContext) + "::Handle:" + LoggingHash.ObjectToString(_securityContext) + "]");
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", "IsCompleted:" + IsCompleted.ToString());
}
return(outSecurityBuffer.token);
}
// This must be called right before returning the result to the user. It might call the callback itself,
// to avoid flowing context. Even if the operation completes before this call, the callback won't have been
// called.
//
// Returns whether the operation completed sync or not.
private bool CaptureOrComplete(ref ExecutionContext cachedContext, bool returnContext)
{
if ((_flags & StateFlags.PostBlockStarted) == 0)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("ContextAwareResult#{0}::CaptureOrComplete|Called without calling StartPostingAsyncOp.", LoggingHash.HashString(this));
}
Debug.Fail("ContextAwareResult#" + LoggingHash.HashString(this) + "::CaptureOrComplete |Called without calling StartPostingAsyncOp.");
}
// See if we're going to need to capture the context.
bool capturingContext = AsyncCallback != null || (_flags & StateFlags.CaptureContext) != 0;
// Peek if we've already completed, but don't fix CompletedSynchronously yet
// Capture the identity if requested, unless we're going to capture the context anyway, unless
// capturing the context won't be sufficient.
if ((_flags & StateFlags.CaptureIdentity) != 0 && !InternalPeekCompleted && (!capturingContext))
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::CaptureOrComplete() starting identity capture");
}
SafeCaptureIdentity();
}
// No need to flow if there's no callback, unless it's been specifically requested.
// Note that Capture() can return null, for example if SuppressFlow() is in effect.
if (capturingContext && !InternalPeekCompleted)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::CaptureOrComplete() starting capture");
}
if (cachedContext == null)
{
cachedContext = ExecutionContext.Capture();
}
if (cachedContext != null)
{
if (!returnContext)
{
_context = cachedContext;
cachedContext = null;
}
else
{
_context = cachedContext;
}
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::CaptureOrComplete() _Context:" + LoggingHash.HashString(_context));
}
}
else
{
// Otherwise we have to have completed synchronously, or not needed the context.
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::CaptureOrComplete() skipping capture");
}
cachedContext = null;
if (AsyncCallback != null && !CompletedSynchronously)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("ContextAwareResult#{0}::CaptureOrComplete|Didn't capture context, but didn't complete synchronously!", LoggingHash.HashString(this));
}
Debug.Fail("ContextAwareResult#" + LoggingHash.HashString(this) + "::CaptureOrComplete |Didn't capture context, but didn't complete synchronously!");
}
}
// Now we want to see for sure what to do. We might have just captured the context for no reason.
// This has to be the first time the state has been queried "for real" (apart from InvokeCallback)
// to guarantee synchronization with Complete() (otherwise, Complete() could try to call the
// callback without the context having been gotten).
DebugProtectState(false);
if (CompletedSynchronously)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ContextAwareResult#" + LoggingHash.HashString(this) + "::CaptureOrComplete() completing synchronously");
}
base.Complete(IntPtr.Zero);
return(true);
}
return(false);
}
internal int Encrypt(byte[] buffer, int offset, int count, ref byte[] output, uint sequenceNumber)
{
SecSizes sizes = Sizes;
try
{
int maxCount = checked (Int32.MaxValue - 4 - sizes.BlockSize - sizes.SecurityTrailer);
if (count > maxCount || count < 0)
{
throw new ArgumentOutOfRangeException("count", SR.Format(SR.net_io_out_range, maxCount));
}
}
catch (Exception e)
{
if (!ExceptionCheck.IsFatal(e) && GlobalLog.IsEnabled)
{
GlobalLog.Assert("NTAuthentication#" + LoggingHash.HashString(this) + "::Encrypt", "Arguments out of range.");
}
throw;
}
int resultSize = count + sizes.SecurityTrailer + sizes.BlockSize;
if (output == null || output.Length < resultSize + 4)
{
output = new byte[resultSize + 4];
}
// Make a copy of user data for in-place encryption.
Buffer.BlockCopy(buffer, offset, output, 4 + sizes.SecurityTrailer, count);
// Prepare buffers TOKEN(signature), DATA and Padding.
var securityBuffer = new SecurityBuffer[3];
securityBuffer[0] = new SecurityBuffer(output, 4, sizes.SecurityTrailer, SecurityBufferType.Token);
securityBuffer[1] = new SecurityBuffer(output, 4 + sizes.SecurityTrailer, count, SecurityBufferType.Data);
securityBuffer[2] = new SecurityBuffer(output, 4 + sizes.SecurityTrailer + count, sizes.BlockSize, SecurityBufferType.Padding);
int errorCode;
if (IsConfidentialityFlag)
{
errorCode = SSPIWrapper.EncryptMessage(GlobalSSPI.SSPIAuth, _securityContext, securityBuffer, sequenceNumber);
}
else
{
if (IsNTLM)
{
securityBuffer[1].type |= SecurityBufferType.ReadOnlyFlag;
}
errorCode = SSPIWrapper.MakeSignature(GlobalSSPI.SSPIAuth, _securityContext, securityBuffer, 0);
}
if (errorCode != 0)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::Encrypt() throw Error = " + errorCode.ToString("x", NumberFormatInfo.InvariantInfo));
throw new Win32Exception(errorCode);
}
// Compacting the result.
resultSize = securityBuffer[0].size;
bool forceCopy = false;
if (resultSize != sizes.SecurityTrailer)
{
forceCopy = true;
Buffer.BlockCopy(output, securityBuffer[1].offset, output, 4 + resultSize, securityBuffer[1].size);
}
resultSize += securityBuffer[1].size;
if (securityBuffer[2].size != 0 && (forceCopy || resultSize != (count + sizes.SecurityTrailer)))
{
Buffer.BlockCopy(output, securityBuffer[2].offset, output, 4 + resultSize, securityBuffer[2].size);
}
resultSize += securityBuffer[2].size;
unchecked
{
output[0] = (byte)((resultSize) & 0xFF);
output[1] = (byte)(((resultSize) >> 8) & 0xFF);
output[2] = (byte)(((resultSize) >> 16) & 0xFF);
output[3] = (byte)(((resultSize) >> 24) & 0xFF);
}
return(resultSize + 4);
}
// Accepts an incoming binary security blob and returns an outgoing binary security blob.
internal byte[] GetOutgoingBlob(byte[] incomingBlob, bool throwOnError, out Interop.SecurityStatus statusCode)
{
GlobalLog.Enter("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", ((incomingBlob == null) ? "0" : incomingBlob.Length.ToString(NumberFormatInfo.InvariantInfo)) + " bytes");
var list = new List <SecurityBuffer>(2);
if (incomingBlob != null)
{
list.Add(new SecurityBuffer(incomingBlob, SecurityBufferType.Token));
}
if (_channelBinding != null)
{
list.Add(new SecurityBuffer(_channelBinding));
}
SecurityBuffer[] inSecurityBufferArray = null;
if (list.Count > 0)
{
inSecurityBufferArray = list.ToArray();
}
var outSecurityBuffer = new SecurityBuffer(_tokenSize, SecurityBufferType.Token);
bool firstTime = _securityContext == null;
try
{
if (!_isServer)
{
// client session
statusCode = (Interop.SecurityStatus)SSPIWrapper.InitializeSecurityContext(
GlobalSSPI.SSPIAuth,
_credentialsHandle,
ref _securityContext,
_spn,
_requestedContextFlags,
Interop.SspiCli.Endianness.Network,
inSecurityBufferArray,
outSecurityBuffer,
ref _contextFlags);
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob() SSPIWrapper.InitializeSecurityContext() returns statusCode:0x" + ((int)statusCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
if (statusCode == Interop.SecurityStatus.CompleteNeeded)
{
var inSecurityBuffers = new SecurityBuffer[1];
inSecurityBuffers[0] = outSecurityBuffer;
statusCode = (Interop.SecurityStatus)SSPIWrapper.CompleteAuthToken(
GlobalSSPI.SSPIAuth,
ref _securityContext,
inSecurityBuffers);
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingDigestBlob() SSPIWrapper.CompleteAuthToken() returns statusCode:0x" + ((int)statusCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
outSecurityBuffer.token = null;
}
}
else
{
// Server session.
statusCode = (Interop.SecurityStatus)SSPIWrapper.AcceptSecurityContext(
GlobalSSPI.SSPIAuth,
_credentialsHandle,
ref _securityContext,
_requestedContextFlags,
Interop.SspiCli.Endianness.Network,
inSecurityBufferArray,
outSecurityBuffer,
ref _contextFlags);
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob() SSPIWrapper.AcceptSecurityContext() returns statusCode:0x" + ((int)statusCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
}
}
finally
{
//
// Assuming the ISC or ASC has referenced the credential on the first successful call,
// we want to decrement the effective ref count by "disposing" it.
// The real dispose will happen when the security context is closed.
// Note if the first call was not successful the handle is physically destroyed here.
//
if (firstTime && _credentialsHandle != null)
{
_credentialsHandle.Dispose();
}
}
if (((int)statusCode & unchecked ((int)0x80000000)) != 0)
{
CloseContext();
_isCompleted = true;
if (throwOnError)
{
var exception = new Win32Exception((int)statusCode);
GlobalLog.Leave("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", "Win32Exception:" + exception);
throw exception;
}
GlobalLog.Leave("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", "null statusCode:0x" + ((int)statusCode).ToString("x8", NumberFormatInfo.InvariantInfo) + " (" + statusCode.ToString() + ")");
return(null);
}
else if (firstTime && _credentialsHandle != null)
{
// Cache until it is pushed out by newly incoming handles.
SSPIHandleCache.CacheCredential(_credentialsHandle);
}
// The return value from SSPI will tell us correctly if the
// handshake is over or not: http://msdn.microsoft.com/library/psdk/secspi/sspiref_67p0.htm
// we also have to consider the case in which SSPI formed a new context, in this case we're done as well.
if (statusCode == Interop.SecurityStatus.OK)
{
// Success.
if ((statusCode == Interop.SecurityStatus.OK) && GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("NTAuthentication#{0}::GetOutgoingBlob()|statusCode:[0x{1:x8}] ({2}) m_SecurityContext#{3}::Handle:[{4}] [STATUS != OK]", LoggingHash.HashString(this), (int)statusCode, statusCode, LoggingHash.HashString(_securityContext), LoggingHash.ObjectToString(_securityContext));
}
_isCompleted = true;
}
else
{
// We need to continue.
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob() need continue statusCode:[0x" + ((int)statusCode).ToString("x8", NumberFormatInfo.InvariantInfo) + "] (" + statusCode.ToString() + ") m_SecurityContext#" + LoggingHash.HashString(_securityContext) + "::Handle:" + LoggingHash.ObjectToString(_securityContext) + "]");
}
GlobalLog.Leave("NTAuthentication#" + LoggingHash.HashString(this) + "::GetOutgoingBlob", "IsCompleted:" + IsCompleted.ToString());
return(outSecurityBuffer.token);
}
private void Initialize(bool isServer, string package, NetworkCredential credential, string spn, Interop.SspiCli.ContextFlags requestedContextFlags, ChannelBinding channelBinding)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::.ctor() package:" + LoggingHash.ObjectToString(package) + " spn:" + LoggingHash.ObjectToString(spn) + " flags :" + requestedContextFlags.ToString());
_tokenSize = SSPIWrapper.GetVerifyPackageInfo(GlobalSSPI.SSPIAuth, package, true).MaxToken;
_isServer = isServer;
_spn = spn;
_securityContext = null;
_requestedContextFlags = requestedContextFlags;
_package = package;
_channelBinding = channelBinding;
GlobalLog.Print("Peer SPN-> '" + _spn + "'");
//
// Check if we're using DefaultCredentials.
//
Debug.Assert(CredentialCache.DefaultCredentials == CredentialCache.DefaultNetworkCredentials);
if (credential == CredentialCache.DefaultCredentials)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(this) + "::.ctor(): using DefaultCredentials");
_credentialsHandle = SSPIWrapper.AcquireDefaultCredential(
GlobalSSPI.SSPIAuth,
package,
(_isServer ? Interop.SspiCli.CredentialUse.Inbound : Interop.SspiCli.CredentialUse.Outbound));
}
else
{
unsafe
{
SafeSspiAuthDataHandle authData = null;
try
{
Interop.SecurityStatus result = Interop.SspiCli.SspiEncodeStringsAsAuthIdentity(
credential.UserName, credential.Domain,
credential.Password, out authData);
if (result != Interop.SecurityStatus.OK)
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.PrintError(
NetEventSource.ComponentType.Security,
SR.Format(
SR.net_log_operation_failed_with_error,
"SspiEncodeStringsAsAuthIdentity()",
String.Format(CultureInfo.CurrentCulture, "0x{0:X}", (int)result)));
}
throw new Win32Exception((int)result);
}
_credentialsHandle = SSPIWrapper.AcquireCredentialsHandle(GlobalSSPI.SSPIAuth,
package, (_isServer ? Interop.SspiCli.CredentialUse.Inbound : Interop.SspiCli.CredentialUse.Outbound), ref authData);
}
finally
{
if (authData != null)
{
authData.Dispose();
}
}
}
}
}
private object WaitForCompletion(bool snap)
{
ManualResetEvent waitHandle = null;
bool createdByMe = false;
bool complete = snap ? IsCompleted : InternalPeekCompleted;
if (!complete)
{
// Not done yet, so wait:
waitHandle = (ManualResetEvent)_event;
if (waitHandle == null)
{
createdByMe = LazilyCreateEvent(out waitHandle);
}
}
if (waitHandle != null)
{
try
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::InternalWaitForCompletion() Waiting for completion _event#" + LoggingHash.HashString(waitHandle));
}
waitHandle.WaitOne(Timeout.Infinite);
}
catch (ObjectDisposedException)
{
// This can occur if this method is called from two different threads.
// This possibility is the trade-off for not locking.
}
finally
{
// We also want to dispose the event although we can't unless we did wait on it here.
if (createdByMe && !_userEvent)
{
// Does _userEvent need to be volatile (or _event set via Interlocked) in order
// to avoid giving a user a disposed event?
ManualResetEvent oldEvent = (ManualResetEvent)_event;
_event = null;
if (!_userEvent)
{
oldEvent.Dispose();
}
}
}
}
// A race condition exists because InvokeCallback sets _intCompleted before _result (so that _result
// can benefit from the synchronization of _intCompleted). That means you can get here before _result got
// set (although rarely - once every eight hours of stress). Handle that case with a spin-lock.
SpinWait sw = new SpinWait();
while (_result == DBNull.Value)
{
sw.SpinOnce();
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("LazyAsyncResult#" + LoggingHash.HashString(this) + "::InternalWaitForCompletion() done: " +
(_result is Exception ? ((Exception)_result).Message : _result == null ? "<null>" : _result.ToString()));
}
return(_result);
}