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namespace OAuthAuthorizationServer.Code {
using System;
using System.Collections.Generic;
using DotNetOpenAuth.Messaging;
using DotNetOpenAuth.OAuth2;
/// <summary>
/// An OAuth 2.0 Client that has registered with this Authorization Server.
/// </summary>
public partial class Client : IClientDescription {
#region IConsumerDescription Members
/// <summary>
/// Gets the callback to use when an individual authorization request
/// does not include an explicit callback URI.
/// </summary>
/// <value>
/// An absolute URL; or <c>null</c> if none is registered.
/// </value>
Uri IClientDescription.DefaultCallback {
get { return string.IsNullOrEmpty(this.Callback) ? null : new Uri(this.Callback); }
}
/// <summary>
/// Gets the type of the client.
/// </summary>
ClientType IClientDescription.ClientType {
get { return (ClientType)this.ClientType; }
}
/// <summary>
/// Gets a value indicating whether a non-empty secret is registered for this client.
/// </summary>
bool IClientDescription.HasNonEmptySecret {
get { return !string.IsNullOrEmpty(this.ClientSecret); }
}
/// <summary>
/// Determines whether a callback URI included in a client's authorization request
/// is among those allowed callbacks for the registered client.
/// </summary>
/// <param name="callback">The absolute URI the client has requested the authorization result be received at.</param>
/// <returns>
/// <c>true</c> if the callback URL is allowable for this client; otherwise, <c>false</c>.
/// </returns>
bool IClientDescription.IsCallbackAllowed(Uri callback) {
if (string.IsNullOrEmpty(this.Callback)) {
// No callback rules have been set up for this client.
return true;
}
// In this sample, it's enough of a callback URL match if the scheme and host match.
// In a production app, it is advisable to require a match on the path as well.
Uri acceptableCallbackPattern = new Uri(this.Callback);
if (string.Equals(acceptableCallbackPattern.GetLeftPart(UriPartial.Authority), callback.GetLeftPart(UriPartial.Authority), StringComparison.Ordinal)) {
return true;
}
return false;
}
/// <summary>
/// Checks whether the specified client secret is correct.
/// </summary>
/// <param name="secret">The secret obtained from the client.</param>
/// <returns><c>true</c> if the secret matches the one in the authorization server's record for the client; <c>false</c> otherwise.</returns>
/// <remarks>
/// All string equality checks, whether checking secrets or their hashes,
/// should be done using <see cref="MessagingUtilities.EqualsConstantTime"/> to mitigate timing attacks.
/// </remarks>
bool IClientDescription.IsValidClientSecret(string secret) {
return MessagingUtilities.EqualsConstantTime(secret, this.ClientSecret);
}
#endregion
}
}
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