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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using DotNetOAuth.Messaging;
namespace DotNetOAuth.ApplicationBlock {
internal class Util {
/// <summary>
/// Enumerates through the individual set bits in a flag enum.
/// </summary>
/// <param name="flags">The flags enum value.</param>
/// <returns>An enumeration of just the <i>set</i> bits in the flags enum.</returns>
internal static IEnumerable<long> GetIndividualFlags(Enum flags) {
long flagsLong = Convert.ToInt64(flags);
for (int i = 0; i < sizeof(long) * 8; i++) { // long is the type behind the largest enum
// Select an individual application from the scopes.
long individualFlagPosition = (long)Math.Pow(2, i);
long individualFlag = flagsLong & individualFlagPosition;
if (individualFlag == individualFlagPosition) {
yield return individualFlag;
}
}
}
internal static Uri GetCallbackUrlFromContext() {
Uri callback = MessagingUtilities.GetRequestUrlFromContext().StripQueryArgumentsWithPrefix("oauth_");
return callback;
}
}
}
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