/// <summary>
/// We want to base the lock name off of the full path of the package, however, the Mutex looks for files on disk if a path is given.
/// Additionally, it also fails if the string is longer than 256 characters. Therefore we obtain a base-64 encoded hash of the path.
/// </summary>
/// <seealso cref="http://social.msdn.microsoft.com/forums/en-us/clr/thread/D0B3BF82-4D23-47C8-8706-CC847157AC81"/>
private static string GenerateUniqueToken(IPackageManager packageManager, string packageId, SemanticVersion version)
{
var packagePath = packageManager.FileSystem.GetFullPath(packageManager.PathResolver.GetPackageFileName(packageId, version));
var pathBytes = Encoding.UTF8.GetBytes(packagePath);
var hashProvider = new CryptoHashProvider("SHA256");
return(Convert.ToBase64String(hashProvider.CalculateHash(pathBytes)).ToUpperInvariant());
}
public static string GenerateUniqueToken(string caseInsensitiveKey)
{
if (string.IsNullOrEmpty(caseInsensitiveKey))
{
throw new ArgumentNullException(nameof(caseInsensitiveKey));
}
// SHA256 is case sensitive; given that our key is case insensitive, we upper case it
var pathBytes = Encoding.UTF8.GetBytes(caseInsensitiveKey.ToUpperInvariant());
var hashProvider = new CryptoHashProvider("SHA256");
return(Convert.ToBase64String(hashProvider.CalculateHash(pathBytes)).ToUpperInvariant());
}