/// <summary>
/// Convert a DJKey to a DJID.
/// </summary>
/// <param name="DJKey">The DJKey.</param>
/// <param name="DJID">OUT parameter for the DJID.</param>
/// <returns>The outcome of the operation.</returns>
private Response DJKeyToID(long DJKey, out int DJID, DatabaseConnectivity db)
{
DJID = -1;
Response r = db.DJGetIDFromKey(DJKey);
if (r.error)
return r;
if (r.message.Trim().Length == 0)
{
r.error = true;
r.message = "DJKey is not valid";
return r;
}
if (!int.TryParse(r.message.Trim(), out DJID))
{
r.error = true;
r.message = "Exception in DJKeyToID: DJID Parse Fail";
return r;
}
return r;
}
/// <summary>
/// Convert a DJID to a DJKey.
/// </summary>
/// <param name="DJID">The DJID</param>
/// <param name="DJKey">OUT parameter for the DJKey</param>
/// <returns></returns>
private Response DJGenerateKey(int DJID, out long DJKey, DatabaseConnectivity db)
{
DJKey = -1;
Response r = new Response();
System.Security.Cryptography.SHA1 sha = new System.Security.Cryptography.SHA1CryptoServiceProvider();
Random rand = new Random();
byte[] randomBytes = new byte[64];
byte[] result;
long tempKey;
for (; ; )
{
rand.NextBytes(randomBytes);
result = sha.ComputeHash(randomBytes);
tempKey = BitConverter.ToInt64(result, 0);
r = db.DJGetIDFromKey(tempKey);
if (r.error)
return r;
if (r.message.Trim().Length != 0)
continue;
r = db.DJSetKey(DJID, tempKey);
if (r.error)
return r;
DJKey = tempKey;
return r;
}
}