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//-----------------------------------------------------------------------
// <copyright file="AuthenticationTests.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.Test.OpenId {
using System;
using System.Diagnostics.Contracts;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.Messaging.Bindings;
using DotNetOpenAuth.OpenId;
using DotNetOpenAuth.OpenId.Messages;
using DotNetOpenAuth.OpenId.Provider;
using DotNetOpenAuth.OpenId.RelyingParty;
using DotNetOpenAuth.Test.Mocks;
using NUnit.Framework;
[TestFixture]
public class AuthenticationTests : OpenIdTestBase {
[SetUp]
public override void SetUp() {
base.SetUp();
}
[TestCase]
public void SharedAssociationPositive() {
this.ParameterizedAuthenticationTest(true, true, false);
}
/// <summary>
/// Verifies that a shared association protects against tampering.
/// </summary>
[TestCase]
public void SharedAssociationTampered() {
this.ParameterizedAuthenticationTest(true, true, true);
}
[TestCase]
public void SharedAssociationNegative() {
this.ParameterizedAuthenticationTest(true, false, false);
}
[TestCase]
public void PrivateAssociationPositive() {
this.ParameterizedAuthenticationTest(false, true, false);
}
/// <summary>
/// Verifies that a private association protects against tampering.
/// </summary>
[TestCase]
public void PrivateAssociationTampered() {
this.ParameterizedAuthenticationTest(false, true, true);
}
[TestCase]
public void NoAssociationNegative() {
this.ParameterizedAuthenticationTest(false, false, false);
}
[TestCase]
public void UnsolicitedAssertion() {
this.MockResponder.RegisterMockRPDiscovery();
OpenIdCoordinator coordinator = new OpenIdCoordinator(
rp => {
rp.Channel.WebRequestHandler = this.MockResponder.MockWebRequestHandler;
IAuthenticationResponse response = rp.GetResponse();
Assert.AreEqual(AuthenticationStatus.Authenticated, response.Status);
},
op => {
op.Channel.WebRequestHandler = this.MockResponder.MockWebRequestHandler;
Identifier id = GetMockIdentifier(ProtocolVersion.V20);
op.SendUnsolicitedAssertion(OPUri, RPRealmUri, id, OPLocalIdentifiers[0]);
AutoProvider(op); // handle check_auth
});
coordinator.Run();
}
[TestCase]
public void UnsolicitedAssertionRejected() {
this.MockResponder.RegisterMockRPDiscovery();
OpenIdCoordinator coordinator = new OpenIdCoordinator(
rp => {
rp.Channel.WebRequestHandler = this.MockResponder.MockWebRequestHandler;
rp.SecuritySettings.RejectUnsolicitedAssertions = true;
IAuthenticationResponse response = rp.GetResponse();
Assert.AreEqual(AuthenticationStatus.Failed, response.Status);
},
op => {
op.Channel.WebRequestHandler = this.MockResponder.MockWebRequestHandler;
Identifier id = GetMockIdentifier(ProtocolVersion.V20);
op.SendUnsolicitedAssertion(OPUri, RPRealmUri, id, OPLocalIdentifiers[0]);
AutoProvider(op); // handle check_auth
});
coordinator.Run();
}
/// <summary>
/// Verifies that delegating identifiers are rejected in unsolicited assertions
/// when the appropriate security setting is set.
/// </summary>
[TestCase]
public void UnsolicitedDelegatingIdentifierRejection() {
this.MockResponder.RegisterMockRPDiscovery();
OpenIdCoordinator coordinator = new OpenIdCoordinator(
rp => {
rp.Channel.WebRequestHandler = this.MockResponder.MockWebRequestHandler;
rp.SecuritySettings.RejectDelegatingIdentifiers = true;
IAuthenticationResponse response = rp.GetResponse();
Assert.AreEqual(AuthenticationStatus.Failed, response.Status);
},
op => {
op.Channel.WebRequestHandler = this.MockResponder.MockWebRequestHandler;
Identifier id = GetMockIdentifier(ProtocolVersion.V20, false, true);
op.SendUnsolicitedAssertion(OPUri, RPRealmUri, id, OPLocalIdentifiers[0]);
AutoProvider(op); // handle check_auth
});
coordinator.Run();
}
private void ParameterizedAuthenticationTest(bool sharedAssociation, bool positive, bool tamper) {
foreach (Protocol protocol in Protocol.AllPracticalVersions) {
foreach (bool statelessRP in new[] { false, true }) {
if (sharedAssociation && statelessRP) {
// Skip the invalid combination scenario.
continue;
}
foreach (bool immediate in new[] { false, true }) {
TestLogger.InfoFormat("Beginning authentication test scenario. OpenID: {0}, Shared: {1}, positive: {2}, tamper: {3}, stateless: {4}, immediate: {5}", protocol.Version, sharedAssociation, positive, tamper, statelessRP, immediate);
this.ParameterizedAuthenticationTest(protocol, statelessRP, sharedAssociation, positive, immediate, tamper);
}
}
}
}
private void ParameterizedAuthenticationTest(Protocol protocol, bool statelessRP, bool sharedAssociation, bool positive, bool immediate, bool tamper) {
Contract.Requires<ArgumentException>(!statelessRP || !sharedAssociation, "The RP cannot be stateless while sharing an association with the OP.");
Contract.Requires<ArgumentException>(positive || !tamper, "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;
var coordinator = new OpenIdCoordinator(
rp => {
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;
rp.Channel.Respond(request);
if (positive) {
if (tamper) {
try {
rp.Channel.ReadFromRequest<PositiveAssertionResponse>();
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 = rp.Channel.ReadFromRequest<PositiveAssertionResponse>();
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 {
CoordinatingChannel channel = (CoordinatingChannel)rp.Channel;
channel.Replay(response);
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 = rp.Channel.ReadFromRequest<NegativeAssertionResponse>();
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);
}
}
},
op => {
if (association != null) {
var key = cryptoKeyStore.GetCurrentKey(ProviderAssociationHandleEncoder.AssociationHandleEncodingSecretBucket, TimeSpan.FromSeconds(1));
op.CryptoKeyStore.StoreKey(ProviderAssociationHandleEncoder.AssociationHandleEncodingSecretBucket, key.Key, key.Value);
}
var request = op.Channel.ReadFromRequest<CheckIdRequest>();
Assert.IsNotNull(request);
IProtocolMessage response;
if (positive) {
response = new PositiveAssertionResponse(request);
} else {
response = new NegativeAssertionResponse(request, op.Channel);
}
op.Channel.Respond(response);
if (positive && (statelessRP || !sharedAssociation)) {
var checkauthRequest = op.Channel.ReadFromRequest<CheckAuthenticationRequest>();
var checkauthResponse = new CheckAuthenticationResponse(checkauthRequest.Version, checkauthRequest);
checkauthResponse.IsValid = checkauthRequest.IsValid;
op.Channel.Respond(checkauthResponse);
if (!tamper) {
// Respond to the replay attack.
checkauthRequest = op.Channel.ReadFromRequest<CheckAuthenticationRequest>();
checkauthResponse = new CheckAuthenticationResponse(checkauthRequest.Version, checkauthRequest);
checkauthResponse.IsValid = checkauthRequest.IsValid;
op.Channel.Respond(checkauthResponse);
}
}
});
if (tamper) {
coordinator.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";
}
};
}
if (statelessRP) {
coordinator.RelyingParty = new OpenIdRelyingParty(null);
}
coordinator.Run();
}
}
}
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