mirror of https://github.com/Radarr/Radarr
38 lines
1.0 KiB
C#
38 lines
1.0 KiB
C#
using System;
|
|
using System.Text;
|
|
|
|
namespace NzbDrone.Common
|
|
{
|
|
public static class HashUtil
|
|
{
|
|
public static string CalculateCrc(string input)
|
|
{
|
|
uint mCrc = 0xffffffff;
|
|
byte[] bytes = Encoding.UTF8.GetBytes(input);
|
|
foreach (byte myByte in bytes)
|
|
{
|
|
mCrc ^= (uint)myByte << 24;
|
|
for (var i = 0; i < 8; i++)
|
|
{
|
|
if ((Convert.ToUInt32(mCrc) & 0x80000000) == 0x80000000)
|
|
{
|
|
mCrc = (mCrc << 1) ^ 0x04C11DB7;
|
|
}
|
|
else
|
|
{
|
|
mCrc <<= 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $"{mCrc:x8}";
|
|
}
|
|
|
|
public static string AnonymousToken()
|
|
{
|
|
var seed = $"{Environment.ProcessorCount}_{Environment.OSVersion.Platform}_{Environment.MachineName}_{Environment.UserName}";
|
|
return HashUtil.CalculateCrc(seed);
|
|
}
|
|
}
|
|
}
|