/// <summary>
/// This function is responsible for continually asking for status updates from OSBIDE
/// </summary>
private void CheckStatus()
{
while (IsSendingData)
{
//this block checks to make sure that our authentication key is up to date
string webServiceKey;
lock (_cache)
{
webServiceKey = _cache[StringConstants.AuthenticationCacheKey] as string;
var result = false;
try
{
var task = AsyncServiceClient.IsValidKey(webServiceKey);
result = task.Result;
}
catch (Exception)
{
// ignored
}
//if result is false, our key has gone stale. Try to login again
if (result == false)
{
var userName = _cache[StringConstants.UserNameCacheKey] as string;
var passwordBytes = _cache[StringConstants.PasswordCacheKey] as byte[];
var encoderKey = _cache[StringConstants.AesKeyCacheKey] as byte[];
var encoderVector = _cache[StringConstants.AesVectorCacheKey] as byte[];
var password = string.Empty;
try
{
password = AesEncryption.DecryptStringFromBytes_Aes(passwordBytes, encoderKey, encoderVector);
}
catch (Exception)
{
// ignored
}
if (userName != null && password != null)
{
var task = AsyncServiceClient.Login(userName, password);
webServiceKey = task.Result;
_cache[StringConstants.AuthenticationCacheKey] = webServiceKey;
}
else
{
IsSendingData = false;
}
}
}
//this block checks for recent user profile activity
DateTime lastLocalProfileUpdate;
const string lastProfileActivityKey = "LastProfileActivity";
//get last cached value
lock (_cache)
{
if (_cache.Contains(lastProfileActivityKey) == false)
{
_cache[lastProfileActivityKey] = DateTime.MinValue;
}
try
{
lastLocalProfileUpdate = (DateTime)_cache[lastProfileActivityKey];
}
catch (Exception)
{
lastLocalProfileUpdate = DateTime.MinValue;
_cache.Remove(lastProfileActivityKey);
}
}
//get last server value
if (IsSendingData)
{
DateTime lastServerProfileUpdate;
try
{
var task = AsyncServiceClient.GetMostRecentSocialActivity(webServiceKey);
lastServerProfileUpdate = task.Result;
}
catch (Exception)
{
lastServerProfileUpdate = DateTime.MinValue;
}
if (lastLocalProfileUpdate < lastServerProfileUpdate)
{
//notify client of new social activity
if (ReceivedNewSocialActivity != null)
{
ReceivedNewSocialActivity(this, EventArgs.Empty);
}
lock (_cache)
{
_cache[lastProfileActivityKey] = lastServerProfileUpdate;
}
}
}
Thread.Sleep(new TimeSpan(0, 0, 3, 0, 0));
}
}
