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//-----------------------------------------------------------------------
// <copyright file="OAuthAuthorizationManager.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace RelyingPartyLogic {
using System;
using System.Collections.Generic;
using System.IdentityModel.Policy;
using System.Linq;
using System.Security.Principal;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Security;
using DotNetOpenAuth;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OAuth;
using DotNetOpenAuth.OAuth2;
/// <summary>
/// A WCF extension to authenticate incoming messages using OAuth.
/// </summary>
public class OAuthAuthorizationManager : ServiceAuthorizationManager {
public OAuthAuthorizationManager() {
}
protected override bool CheckAccessCore(OperationContext operationContext) {
if (!base.CheckAccessCore(operationContext)) {
return false;
}
var httpDetails = operationContext.RequestContext.RequestMessage.Properties[HttpRequestMessageProperty.Name] as HttpRequestMessageProperty;
var requestUri = operationContext.RequestContext.RequestMessage.Properties.Via;
using (var crypto = OAuthResourceServer.CreateRSA()) {
var tokenAnalyzer = new SpecialAccessTokenAnalyzer(crypto, crypto);
var resourceServer = new ResourceServer(tokenAnalyzer);
try {
IPrincipal principal = resourceServer.GetPrincipal(httpDetails, requestUri, operationContext.IncomingMessageHeaders.Action);
var policy = new OAuthPrincipalAuthorizationPolicy(principal);
var policies = new List<IAuthorizationPolicy> {
policy,
};
var securityContext = new ServiceSecurityContext(policies.AsReadOnly());
if (operationContext.IncomingMessageProperties.Security != null) {
operationContext.IncomingMessageProperties.Security.ServiceSecurityContext = securityContext;
} else {
operationContext.IncomingMessageProperties.Security = new SecurityMessageProperty {
ServiceSecurityContext = securityContext,
};
}
securityContext.AuthorizationContext.Properties["Identities"] = new List<IIdentity> {
principal.Identity,
};
return true;
} catch (ProtocolFaultResponseException ex) {
// Return the appropriate unauthorized response to the client.
ex.CreateErrorResponse().Send();
} catch (DotNetOpenAuth.Messaging.ProtocolException/* ex*/) {
////Logger.Error("Error processing OAuth messages.", ex);
}
}
return false;
}
}
}
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