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//-----------------------------------------------------------------------
// <copyright file="InMemoryClientAuthorizationTracker.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.ApplicationBlock {
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.ServiceModel;
using System.Text;
using System.Threading;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OAuth2;
internal class InMemoryClientAuthorizationTracker : IClientAuthorizationTracker {
private readonly Dictionary<int, IAuthorizationState> savedStates = new Dictionary<int, IAuthorizationState>();
private int stateCounter;
#region Implementation of IClientTokenManager
/// <summary>
/// Gets the state of the authorization for a given callback URL and client state.
/// </summary>
/// <param name="callbackUrl">The callback URL.</param>
/// <param name="clientState">State of the client stored at the beginning of an authorization request.</param>
/// <returns>The authorization state; may be <c>null</c> if no authorization state matches.</returns>
public IAuthorizationState GetAuthorizationState(Uri callbackUrl, string clientState) {
IAuthorizationState state;
if (this.savedStates.TryGetValue(int.Parse(clientState), out state)) {
if (state.Callback != callbackUrl) {
throw new DotNetOpenAuth.Messaging.ProtocolException("Client state and callback URL do not match.");
}
}
return state;
}
#endregion
internal IAuthorizationState NewAuthorization(HashSet<string> scope, out string clientState) {
int counter = Interlocked.Increment(ref this.stateCounter);
clientState = counter.ToString(CultureInfo.InvariantCulture);
return this.savedStates[counter] = new AuthorizationState(scope);
}
}
}
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