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using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Principal;
using System.Web;
/// <summary>
/// Extension methods and other helpful utility methods.
/// </summary>
public static class Utilities {
/// <summary>
/// Gets the database entity representing the user identified by a given <see cref="IIdentity"/> instance.
/// </summary>
/// <param name="identity">The identity of the user.</param>
/// <returns>
/// The database object for that user; or <c>null</c> if the user could not
/// be found or if <paramref name="identity"/> is <c>null</c> or represents an anonymous identity.
/// </returns>
public static User GetUser(this IIdentity identity) {
if (identity == null || !identity.IsAuthenticated) {
return null;
}
return Global.DataContext.Users.SingleOrDefault(user => user.OpenIDClaimedIdentifier == identity.Name);
}
}
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