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//-----------------------------------------------------------------------
// <copyright file="PlaintextSigningBindingElement.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OAuth.ChannelElements {
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DotNetOpenAuth.Logging;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.Messaging.Bindings;
/// <summary>
/// A binding element that signs outgoing messages and verifies the signature on incoming messages.
/// </summary>
public class PlaintextSigningBindingElement : SigningBindingElementBase {
/// <summary>
/// Initializes a new instance of the <see cref="PlaintextSigningBindingElement"/> class.
/// </summary>
public PlaintextSigningBindingElement()
: base("PLAINTEXT") {
}
/// <summary>
/// Calculates a signature for a given message.
/// </summary>
/// <param name="message">The message to sign.</param>
/// <returns>The signature for the message.</returns>
/// <remarks>
/// This method signs the message according to OAuth 1.0 section 9.4.1.
/// </remarks>
protected override string GetSignature(ITamperResistantOAuthMessage message) {
return GetConsumerAndTokenSecretString(message);
}
/// <summary>
/// Checks whether this binding element applies to this message.
/// </summary>
/// <param name="message">The message that needs to be signed.</param>
/// <returns>True if this binding element can be used to sign the message. False otherwise.</returns>
protected override bool IsMessageApplicable(ITamperResistantOAuthMessage message) {
if (string.Equals(message.Recipient.Scheme, "https", StringComparison.OrdinalIgnoreCase)) {
return true;
} else {
Logger.Bindings.DebugFormat("The {0} element will not sign this message because the URI scheme is not https.", this.GetType().Name);
return false;
}
}
/// <summary>
/// Clones this instance.
/// </summary>
/// <returns>A new instance of the binding element.</returns>
protected override ITamperProtectionChannelBindingElement Clone() {
return new PlaintextSigningBindingElement();
}
}
}
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