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//-----------------------------------------------------------------------
// <copyright file="OAuth2AuthorizationServerChannel.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OAuth2.ChannelElements {
using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Net.Mime;
using System.Web;
using DotNetOpenAuth.Messaging;
/// <summary>
/// The channel for the OAuth protocol.
/// </summary>
internal class OAuth2AuthorizationServerChannel : OAuth2ChannelBase {
/// <summary>
/// Initializes a new instance of the <see cref="OAuth2AuthorizationServerChannel"/> class.
/// </summary>
/// <param name="authorizationServer">The authorization server.</param>
protected internal OAuth2AuthorizationServerChannel(IAuthorizationServer authorizationServer)
: base(InitializeBindingElements(authorizationServer)) {
Requires.NotNull(authorizationServer, "authorizationServer");
this.AuthorizationServer = authorizationServer;
}
/// <summary>
/// Gets the authorization server.
/// </summary>
/// <value>The authorization server.</value>
public IAuthorizationServer AuthorizationServer { get; private set; }
/// <summary>
/// Gets the protocol message that may be in the given HTTP response.
/// </summary>
/// <param name="response">The response that is anticipated to contain an protocol message.</param>
/// <returns>
/// The deserialized message parts, if found. Null otherwise.
/// </returns>
/// <exception cref="ProtocolException">Thrown when the response is not valid.</exception>
protected override IDictionary<string, string> ReadFromResponseCore(IncomingWebResponse response) {
throw new NotImplementedException();
}
/// <summary>
/// Queues a message for sending in the response stream.
/// </summary>
/// <param name="response">The message to send as a response.</param>
/// <returns>
/// The pending user agent redirect based message to be sent as an HttpResponse.
/// </returns>
/// <remarks>
/// This method implements spec OAuth V1.0 section 5.3.
/// </remarks>
protected override OutgoingWebResponse PrepareDirectResponse(IProtocolMessage response) {
var webResponse = new OutgoingWebResponse();
string json = this.SerializeAsJson(response);
webResponse.SetResponse(json, new ContentType(JsonEncoded));
return webResponse;
}
/// <summary>
/// Gets the protocol message that may be embedded in the given HTTP request.
/// </summary>
/// <param name="request">The request to search for an embedded message.</param>
/// <returns>
/// The deserialized message, if one is found. Null otherwise.
/// </returns>
protected override IDirectedProtocolMessage ReadFromRequestCore(HttpRequestInfo request) {
if (!string.IsNullOrEmpty(request.Url.Fragment)) {
var fields = HttpUtility.ParseQueryString(request.Url.Fragment.Substring(1)).ToDictionary();
MessageReceivingEndpoint recipient;
try {
recipient = request.GetRecipient();
} catch (ArgumentException ex) {
Logger.Messaging.WarnFormat("Unrecognized HTTP request: " + ex.ToString());
return null;
}
return (IDirectedProtocolMessage)this.Receive(fields, recipient);
}
return base.ReadFromRequestCore(request);
}
/// <summary>
/// Initializes the binding elements for the OAuth channel.
/// </summary>
/// <param name="authorizationServer">The authorization server.</param>
/// <returns>
/// An array of binding elements used to initialize the channel.
/// </returns>
private static IChannelBindingElement[] InitializeBindingElements(IAuthorizationServer authorizationServer) {
Requires.NotNull(authorizationServer, "authorizationServer");
var bindingElements = new List<IChannelBindingElement>();
bindingElements.Add(new AuthServerAllFlowsBindingElement());
bindingElements.Add(new AuthorizationCodeBindingElement());
bindingElements.Add(new AccessTokenBindingElement());
bindingElements.Add(new AccessRequestBindingElement());
return bindingElements.ToArray();
}
}
}
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