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Enable basic auth tests with domainless custom authenticator
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201 changes: 201 additions & 0 deletions
201
...ivate.ServiceModel/tools/IISHostedWcfService/App_code/BasicServiceAuthorizationManager.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,201 @@ | ||
| // Licensed to the .NET Foundation under one or more agreements. | ||
| // The .NET Foundation licenses this file to you under the MIT license. | ||
| // See the LICENSE file in the project root for more information. | ||
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.Collections.ObjectModel; | ||
| using System.Net; | ||
| using System.Security.Cryptography; | ||
| using System.Security.Principal; | ||
| using System.ServiceModel; | ||
| using System.ServiceModel.Channels; | ||
| using System.ServiceModel.Description; | ||
| using System.ServiceModel.Dispatcher; | ||
| using System.Text; | ||
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| namespace WcfService | ||
| { | ||
| public abstract class BasicServiceAuthorizationManager : ServiceAuthorizationManager, IServiceBehavior | ||
| { | ||
| private readonly string _realm; | ||
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| public BasicServiceAuthorizationManager(string realm) | ||
| { | ||
| if (realm == null) | ||
| { | ||
| realm = string.Empty; | ||
| } | ||
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| _realm = realm; | ||
| } | ||
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| private bool Authorized(BasicAuthenticationState basicState, OperationContext operationContext, ref Message message) | ||
| { | ||
| object identitiesListObject; | ||
| if (!operationContext.ServiceSecurityContext.AuthorizationContext.Properties.TryGetValue("Identities", | ||
| out identitiesListObject)) | ||
| { | ||
| identitiesListObject = new List<IIdentity>(1); | ||
| operationContext.ServiceSecurityContext.AuthorizationContext.Properties.Add("Identities", identitiesListObject); | ||
| } | ||
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| var identities = identitiesListObject as IList<IIdentity>; | ||
| identities.Add(new GenericIdentity(basicState.Username, "GenericPrincipal")); | ||
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| return true; | ||
| } | ||
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| public override bool CheckAccess(OperationContext operationContext, ref Message message) | ||
| { | ||
| var basicState = new BasicAuthenticationState(operationContext, GetRealm(ref message)); | ||
| if (!basicState.IsRequestBasicAuth) | ||
| { | ||
| return UnauthorizedResponse(basicState); | ||
| } | ||
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| string password; | ||
| if (!GetPassword(ref message, basicState.Username, out password)) | ||
| { | ||
| return UnauthorizedResponse(basicState); | ||
| } | ||
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| if(basicState.Password != password) | ||
| { | ||
| // According to RFC2616, a forbidden response should be in response to valid credentials where the | ||
| // authenticated user is not allowed to use the site but WCF responds with Forbbiden with an incorrect | ||
| // password. We should be returning Unauthorized, but this matches WCF behavior. | ||
| return ForbiddenResponse(basicState); | ||
| } | ||
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| return Authorized(basicState, operationContext, ref message); | ||
| } | ||
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| public virtual string GetRealm(ref Message message) | ||
| { | ||
| return _realm; | ||
| } | ||
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| public abstract bool GetPassword(ref Message message, string username, out string password); | ||
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| private bool UnauthorizedResponse(BasicAuthenticationState basicState) | ||
| { | ||
| basicState.SetChallengeResponse(HttpStatusCode.Unauthorized, "Access Denied"); | ||
| return false; | ||
| } | ||
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| private bool ForbiddenResponse(BasicAuthenticationState basicState) | ||
| { | ||
| basicState.SetChallengeResponse(HttpStatusCode.Forbidden, "Access Denied"); | ||
| return false; | ||
| } | ||
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| #region IServiceBehavior | ||
| public void Validate(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) { } | ||
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| public void AddBindingParameters(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase, Collection<ServiceEndpoint> endpoints, | ||
| BindingParameterCollection bindingParameters) | ||
| { } | ||
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| public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase) | ||
| { | ||
| serviceHostBase.Authorization.ServiceAuthorizationManager = this; | ||
| foreach (ChannelDispatcherBase t in serviceHostBase.ChannelDispatchers) | ||
| { | ||
| ChannelDispatcher channelDispatcher = t as ChannelDispatcher; | ||
| foreach (EndpointDispatcher endpointDispatcher in channelDispatcher.Endpoints) | ||
| { | ||
| endpointDispatcher.DispatchRuntime.ServiceAuthorizationManager = this; | ||
| } | ||
| } | ||
| } | ||
| #endregion | ||
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| private struct BasicAuthenticationState | ||
| { | ||
| private const string BasicAuthenticationMechanism = "Basic "; | ||
| private const int BasicAuthenticationMechanismLength = 6; // DigestAuthenticationMechanism.Length; | ||
| private const string RealmAuthenticationParameter = "realm"; | ||
| private const string AuthenticationChallengeHeaderName = "WWW-Authenticate"; | ||
| private const string AuthorizationHeaderName = "Authorization"; | ||
| private readonly string _authorizationHeader; | ||
| private readonly OperationContext _operationContext; | ||
| private readonly string _realm; | ||
| private string _username; | ||
| private string _password; | ||
| private bool? _authorized; | ||
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| public BasicAuthenticationState(OperationContext operationContext, string realm) | ||
| { | ||
| _operationContext = operationContext; | ||
| _realm = realm; | ||
| _username = _password = string.Empty; | ||
| _authorized = new bool?(); | ||
| _authorizationHeader = GetAuthorizationHeader(operationContext); | ||
| if (_authorizationHeader.Length < BasicAuthenticationMechanismLength) | ||
| { | ||
| _authorized = false; | ||
| return; | ||
| } | ||
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| string authBase64Encoded = _authorizationHeader.Substring(BasicAuthenticationMechanismLength); | ||
| var authDecodedBytes = Convert.FromBase64String(authBase64Encoded); | ||
| var authDecoded = Encoding.UTF8.GetString(authDecodedBytes); | ||
| int colonPos = authDecoded.IndexOf(':'); | ||
| if(colonPos <= 0) | ||
| { | ||
| _authorized = false; | ||
| return; | ||
| } | ||
| _username = authDecoded.Substring(0, colonPos); | ||
| _password = authDecoded.Substring(colonPos + 1); | ||
| } | ||
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| public bool IsRequestBasicAuth { get { return _authorizationHeader.StartsWith(BasicAuthenticationMechanism); } } | ||
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| public string Username { get { return _username; } } | ||
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| public string Password { get { return _password; } } | ||
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| public void SetChallengeResponse(HttpStatusCode statusCode, string statusDescription) | ||
| { | ||
| StringBuilder authChallenge = new StringBuilder(BasicAuthenticationMechanism); | ||
| authChallenge.AppendFormat(RealmAuthenticationParameter + "=\"{0}\", ", _realm); | ||
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| object responsePropertyObject; | ||
| if (!_operationContext.OutgoingMessageProperties.TryGetValue(HttpResponseMessageProperty.Name, out responsePropertyObject)) | ||
| { | ||
| responsePropertyObject = new HttpResponseMessageProperty(); | ||
| _operationContext.OutgoingMessageProperties[HttpResponseMessageProperty.Name] = responsePropertyObject; | ||
| } | ||
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| var responseMessageProperty = (HttpResponseMessageProperty)responsePropertyObject; | ||
| responseMessageProperty.Headers[AuthenticationChallengeHeaderName] = authChallenge.ToString(); | ||
| responseMessageProperty.StatusCode = statusCode; | ||
| responseMessageProperty.StatusDescription = statusDescription; | ||
| } | ||
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| private static string GetAuthorizationHeader(OperationContext operationContext) | ||
| { | ||
| object requestMessagePropertyObject; | ||
| if (!operationContext.IncomingMessageProperties.TryGetValue(HttpRequestMessageProperty.Name, | ||
| out requestMessagePropertyObject)) | ||
| { | ||
| throw new InvalidOperationException("Not an HTTP request"); | ||
| } | ||
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| HttpRequestMessageProperty requestMessageProperties = (HttpRequestMessageProperty)requestMessagePropertyObject; | ||
| var requestHeaders = requestMessageProperties.Headers; | ||
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| var authorizationHeader = requestHeaders[AuthorizationHeaderName]; | ||
| if (authorizationHeader == null) | ||
| { | ||
| authorizationHeader = string.Empty; | ||
| } | ||
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| return authorizationHeader.Trim(); | ||
| } | ||
| } | ||
| } | ||
| } |
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