protected virtual bool TryGetValue(
AzureSqlConnectionStringBuilder connectionString,
out AccessTokenCacheValue accessToken)
{
return(_cache.TryGetValue(connectionString.ConnectionString, out accessToken));
}
/// <summary>
/// Access token is near expiration, and should be refreshed soon.
/// </summary>
private bool IsNearExpiry(AccessTokenCacheValue accessToken)
{
return(TokenExpiresIn(accessToken.AuthenticationResult, DefaultMinExpirationInMinutes));
}
/// <summary>
/// KeyVault certificate has been rotated, and client assertion and tokens should be refreshed soon. Old certificate
/// (and tokens) should still be valid, so long as the rotation policy is not set to 100% of certificate lifetime.
/// </summary>
private bool ClientCertificateHasChanged(
AccessTokenCacheValue accessToken,
string clientCertificateData)
{
return(!accessToken.ClientCertificateData.Equals(clientCertificateData, StringComparison.InvariantCulture));
}
/// <summary>
/// Access token has expired, and must be refreshed.
/// </summary>
private bool IsExpired(AccessTokenCacheValue accessToken)
{
return(TokenExpiresIn(accessToken.AuthenticationResult, expirationInMinutes: 5));
}