/// <summary>
/// Saves an access token at the selected PlayerPrefs.
/// </summary>
/// <param name="prefsName">PlayerPrefs where the token will be saved as JSON.</param>
/// <param name="token">Access toekn to save.</param>
private static void SetPrefsToken(string prefsName, AccessToken token)
{
StoredToken_JSON tokenJson = new StoredToken_JSON()
{
access_token = token.token,
token_type = token.type,
expiration = token.expiration.ToBinary().ToString(),
scope = token.scope
};
PlayerPrefs.SetString(prefsName, JsonUtility.ToJson(tokenJson));
}
/// <summary>
/// Retrieves an access token from the selected PlayerPrefs.
/// </summary>
/// <param name="prefsName">PlayerPrefs where the token is stored.</param>
/// <returns>Returns an access token converted from JSON, or 'null' if the PlayerPrefs is invalid.</returns>
private static AccessToken GetPrefsToken(string prefsName)
{
string tokenString = PlayerPrefs.GetString(prefsName);
if (string.IsNullOrEmpty(tokenString))
{
return(null);
}
StoredToken_JSON tokenJson = JsonUtility.FromJson <StoredToken_JSON>(tokenString);
long temp;
try { temp = Convert.ToInt64(tokenJson.expiration); } catch { temp = 0; }
DateTime expiration = temp != 0 ? DateTime.FromBinary(temp) : DateTime.Now.AddSeconds(-1);
return(new AccessToken(tokenJson.access_token, tokenJson.token_type, expiration, tokenJson.scope));
}