/// <summary>
/// Converts <see cref="ApplicationDataCompositeValue"/> instance to <see cref="MSHealthToken"/>.
/// </summary>
/// <param name="composite"><see cref="ApplicationDataCompositeValue"/> instance.</param>
/// <returns><see cref="MSHealthToken"/> instancel.</returns>
public static MSHealthToken ToMSHealthToken(this ApplicationDataCompositeValue composite)
{
MSHealthToken loToken = null;
if (composite != null)
{
loToken = new MSHealthToken();
if (composite["creationTime"] != null)
loToken.CreationTime = new DateTime((long)composite["creationTime"]);
if (composite["expiresIn"] != null)
loToken.ExpiresIn = (long)composite["expiresIn"];
if (composite["accessToken"] != null)
loToken.AccessToken = (string)composite["accessToken"];
if (composite["refreshToken"] != null)
loToken.RefreshToken = (string)composite["refreshToken"];
}
return loToken;
}
/// <summary>
/// Verifies <paramref name="token"/>instance validity (<see cref="MSHealthToken.ExpirationTime"/>),
/// replaces current <see cref="MSHealthClient.Token"/> and if <paramref name="refreshIfInvalid"/>
/// is <see langword="true"/>, calls <see cref="MSHealthClient.RefreshToken"/>.
/// </summary>
/// <param name="token">Instance of <see cref="MSHealthToken"/> to validate.</param>
/// <param name="refreshIfInvalid">Flag to enforce Token refresh if is not valid.</param>
/// <returns><see langword="true"/> if specified token is valid or has been refresh successfull, otherwise, <see langword="false"/>.</returns>
/// <remarks>
/// It only wworks if <see cref="MSHealthToken.RefreshToken"/> is available, to obtain it,
/// it's necessary to set use <see cref="MSHealthScope.OfflineAccess"/>.
/// </remarks>
public async Task<bool> ValidateToken(MSHealthToken token, bool refreshIfInvalid = true)
{
bool lbValid = false;
// Check input token
if (token != null)
{
// Check instance token
if (Token != null)
{
// Compare AccessToken for input vs instance
if (!string.IsNullOrEmpty(token.AccessToken) &&
!token.AccessToken.Equals(Token.AccessToken, StringComparison.OrdinalIgnoreCase))
{
// Different AccessToken, so, asign input to instance
Token = token;
}
}
else
{
// No instance token, so, asign input
Token = token;
}
// Check Token's ExpirationTime
if (Token.ExpirationTime == null ||
Token.ExpirationTime.CompareTo(DateTime.Now) <= 0)
{
// Already Expired, so, refresh Token
if (refreshIfInvalid)
lbValid = await RefreshToken();
}
else
{
lbValid = true;
}
}
return lbValid;
}