public TokenManager(IAccessTokenObtainer ValidTokenObtainer, int RefreshCacheInMinutes)
{
this.ValidTokenObtainer = ValidTokenObtainer;
CacheTimer = new CacheExpiration(RefreshCacheInMinutes, RefreshTokens);
Tokens = GetAllCurrentTokens();
}
public Task Invoke(IDictionary <string, object> Environment)
{
try
{
var Headers = (IDictionary <string, string[]>)Environment["owin.RequestHeaders"];
if (Headers.ContainsKey("access_token"))
{
if (AccessTokenManager.IsValidToken(TokenFromHttpHeaders(Headers)))
{
return(NextFunction(Environment));
}
else
{
var ResponseData = new Response();
ResponseData.Message = "Invalid Token Supplied";
ResponseData.Environment = Environment;
ResponseData.ResponseCode = 401;
var NewHeader = new Dictionary <string, string[]>();
NewHeader.Add("WWW-Authenticate", new string[] { "Supplied token not valid" });
ResponseData.AppendHeaders = NewHeader;
return(ReturnResponse(ResponseData));
}
}
else
{
var ResponseData = new Response();
ResponseData.Message = "Invalid Token Supplied";
ResponseData.Environment = Environment;
ResponseData.ResponseCode = 401;
var NewHeader = new Dictionary <string, string[]>();
NewHeader.Add("WWW-Authenticate", new string[] { "You must supply header access_token" });
ResponseData.AppendHeaders = NewHeader;
return(ReturnResponse(ResponseData));
}
}
catch (Exception ex)
{
StringBuilder Message = new StringBuilder();
Message.AppendLine(ex.Message);
Message.AppendLine(ex.StackTrace);
Message.AppendLine(ex.Source);
System.Windows.Forms.MessageBox.Show(Message.ToString());
var ResponseData = new Response();
ResponseData.Message = "Exception caught processing token authentication";
ResponseData.Environment = Environment;
ResponseData.ResponseCode = 500;
return(ReturnResponse(ResponseData));
}
finally
{
TokenObtainer = null;
}
}
public TokenManagerMiddleware(AppFunc _NextFunction, IAccessTokenObtainer AccessTokenObtainer, int CacheRefreshTimeInMinutes)
{
NextFunction = _NextFunction;
TokenObtainer = AccessTokenObtainer;
AccessTokenManager = new TokenManager(TokenObtainer, CacheRefreshTimeInMinutes);
}
public static void UseAccessTokenManagement(this IAppBuilder App, IAccessTokenObtainer TokenObtainer, int CacheRefreshInMinutes)
{
App.Use <TokenManagerMiddleware>(TokenObtainer, CacheRefreshInMinutes);
}
