/// <summary>
/// Returns a <see cref="Version"/> instance where the specified number of components
/// are guaranteed to be non-negative. Any applicable negative components are converted to zeros.
/// </summary>
/// <param name="version">The version to use as a template for the returned value.</param>
/// <param name="fieldCount">The number of version components to ensure are non-negative.</param>
/// <returns>
/// The same as <paramref name="version"/> except with any applicable negative values
/// translated to zeros.
/// </returns>
public static Version EnsureNonNegativeComponents(this Version version, int fieldCount = 4)
{
Requires.NotNull(version, nameof(version));
Requires.Range(fieldCount >= 0 && fieldCount <= 4, nameof(fieldCount));
int maj = fieldCount >= 1 ? Math.Max(0, version.Major) : version.Major;
int min = fieldCount >= 2 ? Math.Max(0, version.Minor) : version.Minor;
int bld = fieldCount >= 3 ? Math.Max(0, version.Build) : version.Build;
int rev = fieldCount >= 4 ? Math.Max(0, version.Revision) : version.Revision;
if (version.Major == maj &&
version.Minor == min &&
version.Build == bld &&
version.Revision == rev)
{
return(version);
}
if (rev >= 0)
{
return(new Version(maj, min, bld, rev));
}
else if (bld >= 0)
{
return(new Version(maj, min, bld));
}
else
{
throw Assumes.NotReachable();
}
}
protected virtual object SubstituteValueIfRequired(object value)
{
Requires.NotNull(value, nameof(value));
ISubstitutedValue substitutedValue;
switch (this.direction)
{
case Direction.ToSubstitutedValue:
if (Enum32Substitution.TrySubstituteValue(value, this.resolver, out substitutedValue) ||
TypeSubstitution.TrySubstituteValue(value, this.resolver, out substitutedValue) ||
TypeArraySubstitution.TrySubstituteValue(value, this.resolver, out substitutedValue))
{
value = substitutedValue;
}
break;
case Direction.ToOriginalValue:
if ((substitutedValue = value as ISubstitutedValue) != null)
{
value = substitutedValue.ActualValue;
}
break;
default:
throw Assumes.NotReachable();
}
return(value);
}
public async ValueTask <T?> GetProxyAsync <T>(ServiceRpcDescriptor serviceDescriptor, ServiceActivationOptions options = default, CancellationToken cancellationToken = default)
where T : class
{
if (this.container.profferedServices.TryGetValue(serviceDescriptor.Moniker, out object?factory))
{
if (factory is BrokeredServiceFactory fac1)
{
T?service = (T?) await fac1(serviceDescriptor.Moniker, options, this, cancellationToken).ConfigureAwait(false);
if (service is object)
{
return(serviceDescriptor.ConstructLocalProxy <T>(service));
}
}
else if (factory is AuthorizingBrokeredServiceFactory fac2)
{
#pragma warning disable CA2000 // Dispose objects before losing scope
T?service = (T?) await fac2(serviceDescriptor.Moniker, options, this, new AuthorizationServiceClient(new MockAuthorizationService()), cancellationToken).ConfigureAwait(false);
#pragma warning restore CA2000 // Dispose objects before losing scope
if (service is object)
{
return(serviceDescriptor.ConstructLocalProxy <T>(service));
}
}
else
{
throw Assumes.NotReachable();
}
}
return(default);
private async Task <T> ExecuteUnderLockCoreAsync <T>(Func <CancellationToken, Task <T> > action, CancellationToken cancellationToken = default)
{
Requires.NotNull(action, nameof(action));
using (var source = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, DisposalToken))
{
CancellationToken jointCancellationToken = source.Token;
try
{
T result = default;
await _semaphore.ExecuteAsync(async() => { result = await action(jointCancellationToken); }, jointCancellationToken);
return(result);
}
catch (Exception ex)
{
if (!TryTranslateException(ex, cancellationToken, DisposalToken))
{
throw;
}
}
}
throw Assumes.NotReachable();
}
public async Task ExtensionsAreIdentifiedAsSignedOrUnsigned()
{
Protocol protocol = Protocol.Default;
var opStore = new MemoryCryptoKeyAndNonceStore();
int rpStep = 0;
Handle(RPUri).By(
async req => {
var rp = new OpenIdRelyingParty(new MemoryCryptoKeyAndNonceStore(), this.HostFactories);
RegisterMockExtension(rp.Channel);
switch (++rpStep)
{
case 1:
var response = await rp.Channel.ReadFromRequestAsync <IndirectSignedResponse>(req, CancellationToken.None);
Assert.AreEqual(1, response.SignedExtensions.Count(), "Signed extension should have been received.");
Assert.AreEqual(0, response.UnsignedExtensions.Count(), "No unsigned extension should be present.");
break;
case 2:
response = await rp.Channel.ReadFromRequestAsync <IndirectSignedResponse>(req, CancellationToken.None);
Assert.AreEqual(0, response.SignedExtensions.Count(), "No signed extension should have been received.");
Assert.AreEqual(1, response.UnsignedExtensions.Count(), "Unsigned extension should have been received.");
break;
default:
throw Assumes.NotReachable();
}
return(new HttpResponseMessage());
});
Handle(OPUri).By(
async req => {
var op = new OpenIdProvider(opStore, this.HostFactories);
return(await AutoProviderActionAsync(op, req, CancellationToken.None));
});
{
var op = new OpenIdProvider(opStore, this.HostFactories);
RegisterMockExtension(op.Channel);
var redirectingResponse = await op.Channel.PrepareResponseAsync(this.CreateResponseWithExtensions(protocol));
using (var httpClient = this.HostFactories.CreateHttpClient()) {
using (var response = await httpClient.GetAsync(redirectingResponse.Headers.Location)) {
response.EnsureSuccessStatusCode();
}
}
op.SecuritySettings.SignOutgoingExtensions = false;
redirectingResponse = await op.Channel.PrepareResponseAsync(this.CreateResponseWithExtensions(protocol));
using (var httpClient = this.HostFactories.CreateHttpClient()) {
using (var response = await httpClient.GetAsync(redirectingResponse.Headers.Location)) {
response.EnsureSuccessStatusCode();
}
}
}
}
public void Remove(object index)
{
bool intIndexPresent = index is int indexInt && _importsList.IsPresent(indexInt);
bool stringIndexPresent = index is string removeImport && _importsList.IsPresent(removeImport);
if (intIndexPresent || stringIndexPresent)
{
string?importRemoved = null;
_threadingService.ExecuteSynchronously(() =>
{
return(_projectAccessor.OpenProjectForWriteAsync(ConfiguredProject, project =>
{
Microsoft.Build.Evaluation.ProjectItem importProjectItem;
if (index is string removeImport1)
{
importProjectItem = project.GetItems(ImportItemTypeName)
.First(i => string.Equals(removeImport1, i.EvaluatedInclude, StringComparison.OrdinalIgnoreCase));
}
else if (index is int indexInt1)
{
importProjectItem = project.GetItems(ImportItemTypeName)
.OrderBy(i => i.EvaluatedInclude)
.ElementAt(indexInt1 - 1);
}
else
{
// Cannot reach this point, since index has to be Int or String
throw Assumes.NotReachable();
}
if (importProjectItem.IsImported)
{
throw new ArgumentException(string.Format(VSResources.ImportsFromTargetCannotBeDeleted, index.ToString()), nameof(index));
}
importRemoved = importProjectItem.EvaluatedInclude;
project.RemoveItem(importProjectItem);
}));
});
Assumes.NotNull(importRemoved);
OnImportRemoved(importRemoved);
}
else if (index is string)
{
throw new ArgumentException(string.Format("{0} - Namespace is not present ", index), nameof(index));
}
else
{
throw new ArgumentException(string.Format("{0} - index is neither an Int nor a String", index), nameof(index));
}
}
public void Setup()
{
this.clientRpc = new JsonRpc(CreateHandler(Stream.Null));
IJsonRpcMessageHandler CreateHandler(Stream pipe)
{
return(this.Formatter switch
{
"JSON" => new HeaderDelimitedMessageHandler(pipe, new JsonMessageFormatter()),
"MessagePack" => new LengthHeaderMessageHandler(pipe, pipe, new MessagePackFormatter()),
_ => throw Assumes.NotReachable(),
});
}
/// <summary>
/// Pushes a message pump on the current thread that will execute work scheduled using <see cref="Post(SendOrPostCallback, object)"/>.
/// </summary>
/// <param name="frame">The frame to represent this message pump, which controls when the message pump ends.</param>
public void PushFrame(Frame frame)
{
Requires.NotNull(frame, nameof(frame));
Verify.Operation(this.ownedThreadId == Environment.CurrentManagedThreadId, Strings.PushFromWrongThread);
frame.SetOwner(this);
using (this.Apply())
{
while (frame.Continue)
{
Message message;
lock (this.messageQueue)
{
// Check again now that we're holding the lock.
if (!frame.Continue)
{
break;
}
if (this.messageQueue.Count > 0)
{
message = this.messageQueue.Dequeue();
}
else
{
Monitor.Wait(this.messageQueue);
continue;
}
}
if (message.Context != null)
{
#if EXECUTIONCONTEXT
ExecutionContext.Run(
message.Context,
new ContextCallback(message.Callback),
message.State);
#else
throw Assumes.NotReachable();
#endif
}
else
{
// If this throws, we intentionally let it propagate to our caller.
// WPF/WinForms SyncContexts will crash the process (perhaps by throwing from their method like this?).
// But anyway, throwing from here instead of crashing is more friendly IMO and more easily tested.
message.Callback(message.State);
}
}
}
}
public async Task AssociateRenegotiateBitLength()
{
Protocol protocol = Protocol.V20;
// The strategy is to make a simple request of the RP to establish an association,
// and to more carefully observe the Provider-side of things to make sure that both
// the OP and RP are behaving as expected.
int providerAttemptCount = 0;
HandleProvider(
async(op, request) => {
op.SecuritySettings.MaximumHashBitLength = 160; // Force OP to reject HMAC-SHA256
switch (++providerAttemptCount)
{
case 1:
// Receive initial request for an HMAC-SHA256 association.
var req = (AutoResponsiveRequest)await op.GetRequestAsync(request);
var associateRequest = (AssociateRequest)req.RequestMessage;
Assert.That(associateRequest, Is.Not.Null);
Assert.AreEqual(protocol.Args.SignatureAlgorithm.HMAC_SHA256, associateRequest.AssociationType);
// Ensure that the response is a suggestion that the RP try again with HMAC-SHA1
var renegotiateResponse =
(AssociateUnsuccessfulResponse)await req.GetResponseMessageAsyncTestHook(CancellationToken.None);
Assert.AreEqual(protocol.Args.SignatureAlgorithm.HMAC_SHA1, renegotiateResponse.AssociationType);
return(await op.PrepareResponseAsync(req));
case 2:
// Receive second attempt request for an HMAC-SHA1 association.
req = (AutoResponsiveRequest)await op.GetRequestAsync(request);
associateRequest = (AssociateRequest)req.RequestMessage;
Assert.AreEqual(protocol.Args.SignatureAlgorithm.HMAC_SHA1, associateRequest.AssociationType);
// Ensure that the response is a success response.
var successResponse =
(AssociateSuccessfulResponse)await req.GetResponseMessageAsyncTestHook(CancellationToken.None);
Assert.AreEqual(protocol.Args.SignatureAlgorithm.HMAC_SHA1, successResponse.AssociationType);
return(await op.PrepareResponseAsync(req));
default:
throw Assumes.NotReachable();
}
});
var rp = this.CreateRelyingParty();
var opDescription = new ProviderEndpointDescription(OPUri, protocol.Version);
Association association = await rp.AssociationManager.GetOrCreateAssociationAsync(opDescription, CancellationToken.None);
Assert.IsNotNull(association, "Association failed to be created.");
Assert.AreEqual(protocol.Args.SignatureAlgorithm.HMAC_SHA1, association.GetAssociationType(protocol));
}
public override void Write(Utf8JsonWriter writer, TagKind value, JsonSerializerOptions options)
{
int numericValue = value switch
{
TagKind.General => 0,
TagKind.Artist => 1,
TagKind.Copyright => 3,
TagKind.Character => 4,
TagKind.Metadata => 8,
_ => throw Assumes.NotReachable(),
};
writer.WriteNumberValue(numericValue);
}
protected override Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
switch (this.mode)
{
case Mode.Live:
return(base.SendAsync(request, cancellationToken));
case Mode.Recording:
return(this.RecordSendAsync(request, cancellationToken));
case Mode.Playback:
return(this.PlaybackSendAsync(request, cancellationToken));
default:
throw Assumes.NotReachable();
}
}
public async Task ExtensionOnlyFacadeLevel()
{
Protocol protocol = Protocol.V20;
int opStep = 0;
HandleProvider(
async(op, req) => {
switch (++opStep)
{
case 1:
var assocRequest = await op.GetRequestAsync(req);
return(await op.PrepareResponseAsync(assocRequest));
case 2:
var request = (IAnonymousRequest)await op.GetRequestAsync(req);
request.IsApproved = true;
Assert.IsNotInstanceOf <CheckIdRequest>(request);
return(await op.PrepareResponseAsync(request));
default:
throw Assumes.NotReachable();
}
});
{
var rp = this.CreateRelyingParty();
var request = await rp.CreateRequestAsync(GetMockIdentifier(protocol.ProtocolVersion), RPRealmUri, RPUri);
request.IsExtensionOnly = true;
var redirectRequest = await request.GetRedirectingResponseAsync();
Uri redirectResponseUrl;
this.HostFactories.AllowAutoRedirects = false;
using (var httpClient = this.HostFactories.CreateHttpClient()) {
using (var redirectResponse = await httpClient.GetAsync(redirectRequest.Headers.Location)) {
Assert.That(redirectResponse.StatusCode, Is.EqualTo(HttpStatusCode.Redirect));
redirectResponseUrl = redirectResponse.Headers.Location;
}
}
IAuthenticationResponse response =
await rp.GetResponseAsync(new HttpRequestMessage(HttpMethod.Get, redirectResponseUrl));
Assert.AreEqual(AuthenticationStatus.ExtensionsOnly, response.Status);
}
}
public void Setup()
{
(IDuplexPipe, IDuplexPipe)duplex = FullDuplexStream.CreatePipePair();
this.clientRpc = new JsonRpc(CreateHandler(duplex.Item1));
this.clientRpc.StartListening();
this.serverRpc = new JsonRpc(CreateHandler(duplex.Item2));
this.serverRpc.AddLocalRpcTarget(new Server());
this.serverRpc.StartListening();
IJsonRpcMessageHandler CreateHandler(IDuplexPipe pipe)
{
return(this.Formatter switch
{
"JSON" => new HeaderDelimitedMessageHandler(pipe, new JsonMessageFormatter()),
"MessagePack" => new LengthHeaderMessageHandler(pipe, new MessagePackFormatter()),
_ => throw Assumes.NotReachable(),
});
}
/// <summary>
/// Issues the <see cref="CancellationToken"/> for use by the next asynchronous operation in the sequence,
/// and cancels any prior token.
/// </summary>
/// <remarks>
/// <para>This method does not guarantee that prior operations stop executing before
/// it returns. It only guarantees that their <see cref="CancellationToken"/>
/// will be cancelled. Operations need to use their tokens in an appropriate manner.
/// You may still require additional concurrency protections.</para>
///
/// <para>This method is thread-safe.</para>
/// </remarks>
/// <returns>A <see cref="CancellationToken"/> to be used by the commencing asynchronous operation.</returns>
/// <exception cref="OperationCanceledException">This object is disposed.</exception>
public CancellationToken Next()
{
var next = new CancellationTokenSource();
// Make sure to obtain the CancellationToken for the next source before exposing the source,
// or another thread could dispose of source before we get a chance to access this property.
var nextToken = next.Token;
// The following block is identical to Interlocked.Exchange, except no replacement is
// made if the current field value is null (latch on null).
var prior = Volatile.Read(ref _cancellationTokenSource);
while (prior is not null)
{
var candidate = Interlocked.CompareExchange(ref _cancellationTokenSource, next, prior);
if (candidate == prior)
{
break;
}
else
{
prior = candidate;
}
}
// Detect and handle the case where the sequence was already disposed
if (prior is null)
{
next.Cancel();
next.Dispose();
nextToken.ThrowIfCancellationRequested();
throw Assumes.NotReachable();
}
prior.Cancel();
prior.Dispose();
return(nextToken);
}
public static IUdpProxy CreateProxy(ProxyType type, IPEndPoint local, Socks5CreateOption option)
{
switch (type)
{
case ProxyType.Plain:
{
return(new NoneUdpProxy(local));
}
case ProxyType.Socks5:
{
Requires.NotNull(option, nameof(option));
Requires.Argument(option.Address is not null, nameof(option), @"Proxy server is null");
return(new Socks5UdpProxy(local, option));
}
default:
{
throw Assumes.NotReachable();
}
}
}
public async Task RPOnlyRenegotiatesOnce()
{
Protocol protocol = Protocol.V20;
int opStep = 0;
HandleProvider(
async(op, req) => {
switch (++opStep)
{
case 1:
// Receive initial request.
var request = await op.Channel.ReadFromRequestAsync <AssociateRequest>(req, CancellationToken.None);
// Send a renegotiate response
var renegotiateResponse = new AssociateUnsuccessfulResponse(request.Version, request);
renegotiateResponse.AssociationType = protocol.Args.SignatureAlgorithm.HMAC_SHA1;
renegotiateResponse.SessionType = protocol.Args.SessionType.DH_SHA1;
return(await op.Channel.PrepareResponseAsync(renegotiateResponse, CancellationToken.None));
case 2:
// Receive second-try
request = await op.Channel.ReadFromRequestAsync <AssociateRequest>(req, CancellationToken.None);
// Send ANOTHER renegotiate response, at which point the DNOI RP should give up.
renegotiateResponse = new AssociateUnsuccessfulResponse(request.Version, request);
renegotiateResponse.AssociationType = protocol.Args.SignatureAlgorithm.HMAC_SHA256;
renegotiateResponse.SessionType = protocol.Args.SessionType.DH_SHA256;
return(await op.Channel.PrepareResponseAsync(renegotiateResponse, CancellationToken.None));
default:
throw Assumes.NotReachable();
}
});
var rp = this.CreateRelyingParty();
var association = await rp.AssociationManager.GetOrCreateAssociationAsync(new ProviderEndpointDescription(OPUri, protocol.Version), CancellationToken.None);
Assert.IsNull(association, "The RP should quietly give up when the OP misbehaves.");
}
/// <summary>
/// Gets the block mode for an algorithm.
/// </summary>
/// <param name="algorithm">The algorithm.</param>
/// <returns>The block mode.</returns>
public static SymmetricAlgorithmMode GetMode(this SymmetricAlgorithm algorithm)
{
switch (algorithm)
{
case SymmetricAlgorithm.AesCbc:
case SymmetricAlgorithm.AesCbcPkcs7:
case SymmetricAlgorithm.Rc2Cbc:
case SymmetricAlgorithm.Rc2CbcPkcs7:
case SymmetricAlgorithm.DesCbc:
case SymmetricAlgorithm.DesCbcPkcs7:
case SymmetricAlgorithm.TripleDesCbc:
case SymmetricAlgorithm.TripleDesCbcPkcs7:
return(SymmetricAlgorithmMode.Cbc);
case SymmetricAlgorithm.AesEcb:
case SymmetricAlgorithm.AesEcbPkcs7:
case SymmetricAlgorithm.DesEcb:
case SymmetricAlgorithm.DesEcbPkcs7:
case SymmetricAlgorithm.TripleDesEcb:
case SymmetricAlgorithm.TripleDesEcbPkcs7:
case SymmetricAlgorithm.Rc2Ecb:
case SymmetricAlgorithm.Rc2EcbPkcs7:
return(SymmetricAlgorithmMode.Ecb);
case SymmetricAlgorithm.AesCcm:
return(SymmetricAlgorithmMode.Ccm);
case SymmetricAlgorithm.AesGcm:
return(SymmetricAlgorithmMode.Gcm);
case SymmetricAlgorithm.Rc4:
return(SymmetricAlgorithmMode.Streaming);
default:
throw Assumes.NotReachable();
}
}
public async Task CreateConnectionAndInvokeOnce()
{
for (int i = 0; i < Iterations; i++)
{
(IDuplexPipe, IDuplexPipe)duplex = FullDuplexStream.CreatePipePair();
using var clientRpc = new JsonRpc(CreateHandler(duplex.Item1));
clientRpc.StartListening();
using var serverRpc = new JsonRpc(CreateHandler(duplex.Item2));
serverRpc.AddLocalRpcTarget(new Server());
serverRpc.StartListening();
await clientRpc.InvokeAsync(nameof(Server.NoOp), Array.Empty <object>());
}
IJsonRpcMessageHandler CreateHandler(IDuplexPipe pipe)
{
return(this.Formatter switch
{
"JSON" => new HeaderDelimitedMessageHandler(pipe, new JsonMessageFormatter()),
"MessagePack" => new LengthHeaderMessageHandler(pipe, new MessagePackFormatter()),
_ => throw Assumes.NotReachable(),
});
}
public bool Contains(object item)
{
throw Assumes.NotReachable();
}
private async Task ParameterizedAuthenticationTestAsync(Protocol protocol, bool statelessRP, bool sharedAssociation, bool positive, bool immediate, bool tamper)
{
Requires.That(!statelessRP || !sharedAssociation, null, "The RP cannot be stateless while sharing an association with the OP.");
Requires.That(positive || !tamper, null, "Cannot tamper with a negative response.");
var securitySettings = new ProviderSecuritySettings();
var cryptoKeyStore = new MemoryCryptoKeyStore();
var associationStore = new ProviderAssociationHandleEncoder(cryptoKeyStore);
Association association = sharedAssociation ? HmacShaAssociationProvider.Create(protocol, protocol.Args.SignatureAlgorithm.Best, AssociationRelyingPartyType.Smart, associationStore, securitySettings) : null;
int opStep = 0;
HandleProvider(
async(op, req) => {
if (association != null)
{
var key = cryptoKeyStore.GetCurrentKey(
ProviderAssociationHandleEncoder.AssociationHandleEncodingSecretBucket, TimeSpan.FromSeconds(1));
op.CryptoKeyStore.StoreKey(
ProviderAssociationHandleEncoder.AssociationHandleEncodingSecretBucket, key.Key, key.Value);
}
switch (++opStep)
{
case 1:
var request = await op.Channel.ReadFromRequestAsync <CheckIdRequest>(req, CancellationToken.None);
Assert.IsNotNull(request);
IProtocolMessage response;
if (positive)
{
response = new PositiveAssertionResponse(request);
}
else
{
response = await NegativeAssertionResponse.CreateAsync(request, CancellationToken.None, op.Channel);
}
return(await op.Channel.PrepareResponseAsync(response));
case 2:
if (positive && (statelessRP || !sharedAssociation))
{
var checkauthRequest =
await op.Channel.ReadFromRequestAsync <CheckAuthenticationRequest>(req, CancellationToken.None);
var checkauthResponse = new CheckAuthenticationResponse(checkauthRequest.Version, checkauthRequest);
checkauthResponse.IsValid = checkauthRequest.IsValid;
return(await op.Channel.PrepareResponseAsync(checkauthResponse));
}
throw Assumes.NotReachable();
case 3:
if (positive && (statelessRP || !sharedAssociation))
{
if (!tamper)
{
// Respond to the replay attack.
var checkauthRequest =
await op.Channel.ReadFromRequestAsync <CheckAuthenticationRequest>(req, CancellationToken.None);
var checkauthResponse = new CheckAuthenticationResponse(checkauthRequest.Version, checkauthRequest);
checkauthResponse.IsValid = checkauthRequest.IsValid;
return(await op.Channel.PrepareResponseAsync(checkauthResponse));
}
}
throw Assumes.NotReachable();
default:
throw Assumes.NotReachable();
}
});
{
var rp = this.CreateRelyingParty(statelessRP);
if (tamper)
{
rp.Channel.IncomingMessageFilter = message => {
var assertion = message as PositiveAssertionResponse;
if (assertion != null)
{
// Alter the Local Identifier between the Provider and the Relying Party.
// If the signature binding element does its job, this should cause the RP
// to throw.
assertion.LocalIdentifier = "http://victim";
}
};
}
var request = new CheckIdRequest(
protocol.Version, OPUri, immediate ? AuthenticationRequestMode.Immediate : AuthenticationRequestMode.Setup);
if (association != null)
{
StoreAssociation(rp, OPUri, association);
request.AssociationHandle = association.Handle;
}
request.ClaimedIdentifier = "http://claimedid";
request.LocalIdentifier = "http://localid";
request.ReturnTo = RPUri;
request.Realm = RPUri;
var redirectRequest = await rp.Channel.PrepareResponseAsync(request);
Uri redirectResponse;
this.HostFactories.AllowAutoRedirects = false;
using (var httpClient = rp.Channel.HostFactories.CreateHttpClient()) {
using (var response = await httpClient.GetAsync(redirectRequest.Headers.Location)) {
Assert.That(response.StatusCode, Is.EqualTo(HttpStatusCode.Redirect));
redirectResponse = response.Headers.Location;
}
}
var assertionMessage = new HttpRequestMessage(HttpMethod.Get, redirectResponse);
if (positive)
{
if (tamper)
{
try {
await rp.Channel.ReadFromRequestAsync <PositiveAssertionResponse>(assertionMessage, CancellationToken.None);
Assert.Fail("Expected exception {0} not thrown.", typeof(InvalidSignatureException).Name);
} catch (InvalidSignatureException) {
TestLogger.InfoFormat(
"Caught expected {0} exception after tampering with signed data.", typeof(InvalidSignatureException).Name);
}
}
else
{
var response =
await rp.Channel.ReadFromRequestAsync <PositiveAssertionResponse>(assertionMessage, CancellationToken.None);
Assert.IsNotNull(response);
Assert.AreEqual(request.ClaimedIdentifier, response.ClaimedIdentifier);
Assert.AreEqual(request.LocalIdentifier, response.LocalIdentifier);
Assert.AreEqual(request.ReturnTo, response.ReturnTo);
// Attempt to replay the message and verify that it fails.
// Because in various scenarios and protocol versions different components
// notice the replay, we can get one of two exceptions thrown.
// When the OP notices the replay we get a generic InvalidSignatureException.
// When the RP notices the replay we get a specific ReplayMessageException.
try {
await rp.Channel.ReadFromRequestAsync <PositiveAssertionResponse>(assertionMessage, CancellationToken.None);
Assert.Fail("Expected ProtocolException was not thrown.");
} catch (ProtocolException ex) {
Assert.IsTrue(
ex is ReplayedMessageException || ex is InvalidSignatureException,
"A {0} exception was thrown instead of the expected {1} or {2}.",
ex.GetType(),
typeof(ReplayedMessageException).Name,
typeof(InvalidSignatureException).Name);
}
}
}
else
{
var response =
await rp.Channel.ReadFromRequestAsync <NegativeAssertionResponse>(assertionMessage, CancellationToken.None);
Assert.IsNotNull(response);
if (immediate)
{
// Only 1.1 was required to include user_setup_url
if (protocol.Version.Major < 2)
{
Assert.IsNotNull(response.UserSetupUrl);
}
}
else
{
Assert.IsNull(response.UserSetupUrl);
}
}
}
}
public IEnumerator <object> GetEnumerator()
{
return(Assumes.NotReachable <IEnumerator <object> >());
}
IEnumerator IEnumerable.GetEnumerator()
{
return(Assumes.NotReachable <IEnumerator>());
}
private void Write(IImportSatisfiabilityConstraint importConstraint)
{
using (this.Trace(nameof(IImportSatisfiabilityConstraint)))
{
ConstraintTypes type;
if (importConstraint is ImportMetadataViewConstraint)
{
type = ConstraintTypes.ImportMetadataViewConstraint;
}
else if (importConstraint is ExportTypeIdentityConstraint)
{
type = ConstraintTypes.ExportTypeIdentityConstraint;
}
else if (importConstraint is PartCreationPolicyConstraint)
{
type = ConstraintTypes.PartCreationPolicyConstraint;
}
else if (importConstraint is ExportMetadataValueImportConstraint)
{
type = ConstraintTypes.ExportMetadataValueImportConstraint;
}
else
{
throw new NotSupportedException(string.Format(CultureInfo.CurrentCulture, Strings.ImportConstraintTypeNotSupported, importConstraint.GetType().FullName));
}
this.writer !.Write((byte)type);
switch (type)
{
case ConstraintTypes.ImportMetadataViewConstraint:
var importMetadataViewConstraint = (ImportMetadataViewConstraint)importConstraint;
this.WriteCompressedUInt((uint)importMetadataViewConstraint.Requirements.Count);
foreach (var item in importMetadataViewConstraint.Requirements)
{
this.Write(item.Key);
this.Write(item.Value.MetadatumValueTypeRef);
this.writer.Write(item.Value.IsMetadataumValueRequired);
}
break;
case ConstraintTypes.ExportTypeIdentityConstraint:
var exportTypeIdentityConstraint = (ExportTypeIdentityConstraint)importConstraint;
this.Write(exportTypeIdentityConstraint.TypeIdentityName);
break;
case ConstraintTypes.PartCreationPolicyConstraint:
var partCreationPolicyConstraint = (PartCreationPolicyConstraint)importConstraint;
this.Write(partCreationPolicyConstraint.RequiredCreationPolicy);
break;
case ConstraintTypes.ExportMetadataValueImportConstraint:
var exportMetadataValueImportConstraint = (ExportMetadataValueImportConstraint)importConstraint;
this.Write(exportMetadataValueImportConstraint.Name);
this.WriteObject(exportMetadataValueImportConstraint.Value);
break;
default:
throw Assumes.NotReachable();
}
}
}
public IEnumerator <object> GetEnumerator()
{
throw Assumes.NotReachable();
}
public bool Remove(object item)
{
throw Assumes.NotReachable();
}
/// <summary>
/// Creates a new <see cref="CancellationToken"/> that is canceled when any of a set of other tokens are canceled.
/// </summary>
/// <param name="original">The first token.</param>
/// <param name="others">The additional tokens.</param>
/// <returns>A struct that contains the combined <see cref="CancellationToken"/> and a means to release memory when you're done using it.</returns>
public static CombinedCancellationToken CombineWith(this CancellationToken original, params CancellationToken[] others)
{
Requires.NotNull(others, nameof(others));
if (original.IsCancellationRequested)
{
return(new CombinedCancellationToken(original));
}
int cancelableTokensCount = original.CanBeCanceled ? 1 : 0;
foreach (CancellationToken other in others)
{
if (other.IsCancellationRequested)
{
return(new CombinedCancellationToken(other));
}
if (other.CanBeCanceled)
{
cancelableTokensCount++;
}
}
switch (cancelableTokensCount)
{
case 0:
return(new CombinedCancellationToken(CancellationToken.None));
case 1:
if (original.CanBeCanceled)
{
return(new CombinedCancellationToken(original));
}
foreach (CancellationToken other in others)
{
if (other.CanBeCanceled)
{
return(new CombinedCancellationToken(other));
}
}
throw Assumes.NotReachable();
case 2:
CancellationToken first = CancellationToken.None;
CancellationToken second = CancellationToken.None;
if (original.CanBeCanceled)
{
first = original;
}
foreach (CancellationToken other in others)
{
if (other.CanBeCanceled)
{
if (first.CanBeCanceled)
{
second = other;
}
else
{
first = other;
}
}
}
Assumes.True(first.CanBeCanceled && second.CanBeCanceled);
// Call the overload that takes two CancellationTokens explicitly to avoid an array allocation.
return(new CombinedCancellationToken(CancellationTokenSource.CreateLinkedTokenSource(first, second)));
default:
// This is the most expensive path to take since it involves allocating memory and requiring disposal.
// Before this point we've checked every condition that would allow us to avoid it.
var cancelableTokens = new CancellationToken[cancelableTokensCount];
int i = 0;
foreach (CancellationToken other in others)
{
if (other.CanBeCanceled)
{
cancelableTokens[i++] = other;
}
}
return(new CombinedCancellationToken(CancellationTokenSource.CreateLinkedTokenSource(cancelableTokens)));
}
}
private TypeRef(Resolver resolver, Type type, bool shallow = false)
{
Requires.NotNull(resolver, nameof(resolver));
Requires.NotNull(type, nameof(type));
this.resolver = resolver;
this.resolvedType = type;
this.AssemblyName = GetNormalizedAssemblyName(type.GetTypeInfo().Assembly.GetName());
this.assemblyId = resolver.GetStrongAssemblyIdentity(type.GetTypeInfo().Assembly, this.AssemblyName);
this.TypeFlags |= type.IsArray ? TypeRefFlags.Array : TypeRefFlags.None;
this.TypeFlags |= type.GetTypeInfo().IsValueType ? TypeRefFlags.IsValueType : TypeRefFlags.None;
this.ElementTypeRef = PartDiscovery.TryGetElementTypeFromMany(type, out var elementType)
? TypeRef.Get(elementType, resolver)
: this;
var arrayElementType = this.ArrayElementType;
Requires.Argument(!arrayElementType.IsGenericParameter, nameof(type), "Generic parameters are not supported.");
this.MetadataToken = arrayElementType.GetTypeInfo().MetadataToken;
this.FullName = (arrayElementType.GetTypeInfo().IsGenericType ? arrayElementType.GetGenericTypeDefinition() : arrayElementType).FullName ?? throw Assumes.NotReachable();
this.GenericTypeParameterCount = arrayElementType.GetTypeInfo().GenericTypeParameters.Length;
this.GenericTypeArguments = arrayElementType.GenericTypeArguments != null && arrayElementType.GenericTypeArguments.Length > 0
? arrayElementType.GenericTypeArguments.Where(t => !(shallow && t.IsGenericParameter)).Select(t => new TypeRef(resolver, t, shallow: true)).ToImmutableArray()
: ImmutableArray <TypeRef> .Empty;
if (!shallow)
{
this.baseTypes = arrayElementType.EnumTypeBaseTypesAndInterfaces().Skip(1).Select(t => new TypeRef(resolver, t, shallow: true)).ToImmutableArray();
}
}
public void NotReachableOfT()
{
Assert.ThrowsAny <Exception>(() => Assumes.NotReachable <int>());
Assert.ThrowsAny <Exception>(() => Assumes.NotReachable <object>());
}
IEnumerator IEnumerable.GetEnumerator()
{
throw Assumes.NotReachable();
}
public void CopyTo(object[] array, int arrayIndex)
{
throw Assumes.NotReachable();
}
