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//-----------------------------------------------------------------------
// <copyright file="SignedMessageBase.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOAuth.Messages {
using System;
using System.Collections.Generic;
using DotNetOAuth.ChannelElements;
using DotNetOAuth.Messaging;
using DotNetOAuth.Messaging.Bindings;
/// <summary>
/// A base class for all signed OAuth messages.
/// </summary>
public class SignedMessageBase : MessageBase, ITamperResistantOAuthMessage, IExpiringProtocolMessage, IReplayProtectedProtocolMessage {
/// <summary>
/// The reference date and time for calculating time stamps.
/// </summary>
private static readonly DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
/// <summary>
/// The number of seconds since 1/1/1970, consistent with the OAuth timestamp requirement.
/// </summary>
[MessagePart("oauth_timestamp", IsRequired = true)]
private long timestamp;
/// <summary>
/// Initializes a new instance of the <see cref="SignedMessageBase"/> class.
/// </summary>
/// <param name="transport">A value indicating whether this message requires a direct or indirect transport.</param>
internal SignedMessageBase(MessageTransport transport)
: base(MessageProtection.All, transport) {
}
/// <summary>
/// Initializes a new instance of the <see cref="SignedMessageBase"/> class.
/// </summary>
/// <param name="transport">A value indicating whether this message requires a direct or indirect transport.</param>
/// <param name="recipient">The URI that a directed message will be delivered to.</param>
internal SignedMessageBase(MessageTransport transport, MessageReceivingEndpoint recipient)
: base(MessageProtection.All, transport, recipient) {
}
#region ITamperResistantOAuthMessage Members
/// <summary>
/// Gets or sets the signature method used to sign the request.
/// </summary>
[MessagePart("oauth_signature_method", IsRequired = true)]
string ITamperResistantOAuthMessage.SignatureMethod { get; set; }
/// <summary>
/// Gets or sets the Token Secret used to sign the message.
/// Only applicable to Consumer.
/// </summary>
public string TokenSecret { get; set; }
/// <summary>
/// Gets or sets the Consumer key.
/// </summary>
[MessagePart(Name = "oauth_consumer_key", IsRequired = true)]
public string ConsumerKey { get; set; }
/// <summary>
/// Gets or sets the Consumer Secret used to sign the message.
/// Only applicable to Consumer.
/// </summary>
public string ConsumerSecret { get; set; }
/// <summary>
/// Gets or sets the HTTP method that will be used to transmit the message.
/// Only applicable to Consumer.
/// </summary>
string ITamperResistantOAuthMessage.HttpMethod { get; set; }
#endregion
#region ITamperResistantProtocolMessage Members
/// <summary>
/// Gets or sets the message signature.
/// </summary>
[MessagePart("oauth_signature", IsRequired = true)]
string ITamperResistantProtocolMessage.Signature { get; set; }
#endregion
#region IExpiringProtocolMessage Members
/// <summary>
/// Gets or sets the OAuth timestamp of the message.
/// </summary>
DateTime IExpiringProtocolMessage.UtcCreationDate {
get { return epoch + TimeSpan.FromSeconds(this.timestamp); }
set { this.timestamp = (long)(value - epoch).TotalSeconds; }
}
#endregion
#region IReplayProtectedProtocolMessage Members
/// <summary>
/// Gets or sets the message nonce used for replay detection.
/// </summary>
[MessagePart("oauth_nonce", IsRequired = true)]
string IReplayProtectedProtocolMessage.Nonce { get; set; }
#endregion
/// <summary>
/// Gets or sets the version of the protocol this message was created with.
/// </summary>
[MessagePart(Name = "oauth_version", IsRequired = false)]
private string Version {
get {
return ((IProtocolMessage)this).ProtocolVersion.ToString();
}
set {
if (value != this.Version) {
throw new ArgumentOutOfRangeException("value");
}
}
}
}
}
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