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//-----------------------------------------------------------------------
// <copyright file="AuthServerAllFlowsBindingElement.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OAuth2.ChannelElements {
using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Linq;
using System.Text;
using DotNetOpenAuth.OAuth2.Messages;
using Messaging;
/// <summary>
/// A binding element that should be applied for authorization server channels regardless of which flows
/// are supported.
/// </summary>
internal class AuthServerAllFlowsBindingElement : AuthServerBindingElementBase {
/// <summary>
/// Initializes a new instance of the <see cref="AuthServerAllFlowsBindingElement"/> class.
/// </summary>
internal AuthServerAllFlowsBindingElement() {
}
/// <summary>
/// Gets the protection commonly offered (if any) by this binding element.
/// </summary>
/// <remarks>
/// This value is used to assist in sorting binding elements in the channel stack.
/// </remarks>
public override MessageProtections Protection {
get { return MessageProtections.None; }
}
/// <summary>
/// Prepares a message for sending based on the rules of this channel binding element.
/// </summary>
/// <param name="message">The message to prepare for sending.</param>
/// <returns>
/// The protections (if any) that this binding element applied to the message.
/// Null if this binding element did not even apply to this binding element.
/// </returns>
/// <remarks>
/// Implementations that provide message protection must honor the
/// <see cref="MessagePartAttribute.RequiredProtection"/> properties where applicable.
/// </remarks>
public override MessageProtections? ProcessOutgoingMessage(IProtocolMessage message) {
return null;
}
/// <summary>
/// Performs any transformation on an incoming message that may be necessary and/or
/// validates an incoming message based on the rules of this channel binding element.
/// </summary>
/// <param name="message">The incoming message to process.</param>
/// <returns>
/// The protections (if any) that this binding element applied to the message.
/// Null if this binding element did not even apply to this binding element.
/// </returns>
/// <exception cref="ProtocolException">
/// Thrown when the binding element rules indicate that this message is invalid and should
/// NOT be processed.
/// </exception>
/// <remarks>
/// Implementations that provide message protection must honor the
/// <see cref="MessagePartAttribute.RequiredProtection"/> properties where applicable.
/// </remarks>
public override MessageProtections? ProcessIncomingMessage(IProtocolMessage message) {
var authorizationRequest = message as EndUserAuthorizationRequest;
if (authorizationRequest != null) {
var client = this.AuthorizationServer.GetClientOrThrow(authorizationRequest.ClientIdentifier);
ErrorUtilities.VerifyProtocol(authorizationRequest.Callback == null || client.IsCallbackAllowed(authorizationRequest.Callback), OAuthStrings.ClientCallbackDisallowed, authorizationRequest.Callback);
ErrorUtilities.VerifyProtocol(authorizationRequest.Callback != null || client.DefaultCallback != null, OAuthStrings.NoCallback);
return MessageProtections.None;
}
return null;
}
}
}
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