static public bool ValidateAuthToken(string Secret, string Key, out Int64 UserId, out Int64 AuthTokenId)
{
try
{
Query qry = new Query(UserAuthToken.TableSchema).Where(UserAuthToken.Columns.Secret, Secret).AND(UserAuthToken.Columns.Key, Key);
UserAuthTokenCollection coll = UserAuthTokenCollection.FetchByQuery(qry);
if (coll.Count == 1)
{
UserAuthToken token = coll[0];
if (token.Expiry < DateTime.UtcNow || token.Key != EncodeKey(token.UserId, AuthTokenKeySalt_UserId))
{
UserAuthToken.Delete(token.UserAuthTokenId);
UserId = 0;
AuthTokenId = 0;
return(false);
}
else
{
UserId = token.UserId;
AuthTokenId = token.UserAuthTokenId;
DateTime newExpiry = DateTime.UtcNow.AddHours(AuthTokenLifeSpan_UserId);
if (newExpiry > token.Expiry)
{
token.Expiry = newExpiry;
}
token.Save();
return(true);
}
}
else
{
UserId = 0;
AuthTokenId = 0;
return(false);
}
}
catch
{
UserId = 0;
AuthTokenId = 0;
return(false);
}
}
static public UserAuthToken GenerateAuthTokenForUserId(Int64 UserId, int LifeTimeInHours)
{
int tries = 3;
UserAuthToken token = new UserAuthToken();
token.UserId = UserId;
token.CreatedOn = DateTime.UtcNow;
token.Expiry = token.CreatedOn.AddHours(LifeTimeInHours > 0 ? LifeTimeInHours : AuthTokenLifeSpan_UserId);
token.Key = EncodeKey(UserId, AuthTokenKeySalt_UserId);
while (tries > 0)
{
try
{
token.Secret = Guid.NewGuid();
token.Save();
return(token);
}
catch (System.Data.Common.DbException)
{
tries--;
}
}
return(null);
}
