/// <summary>
/// Gets the response in string from HttpResponseBuffer.
/// </summary>
/// <param name="url">Url for which response is needed</param>
/// <returns></returns>
private string GetResponseForUrl(string url, string filePath, HttpListenerContext ctx)
{
string retVal = string.Empty;
HttpResponseBuffer responseBuffer = null;
responseBuffer = _httpUrlList.GetUrl(url);
if (responseBuffer != null)
{
if ((DateTime.UtcNow.Ticks > responseBuffer.ExpiryTime) && (responseBuffer.IgnoreExpiryTime == false))
{
ctx.Response.StatusCode = 400;
_logger.Error(string.Format(Constants.URL_TIMEDOUT, url));
}
else
{
retVal = responseBuffer.GetData();
}
}
else
{
ctx.Response.StatusCode = 403;
_logger.Error(string.Format(Constants.LOG_RESOURCENOTFOUND, url));
}
return(retVal);
}
/// <summary>
/// Adds Url and object of HttpResponseBuffer to ConcurrentDictionary
/// </summary>
/// <param name="Url"> Url that is called by the user agent.</param>
/// <param name="session">Session is an object HttpResponseBuffer. See HttpResponseBuffer documentation for more.</param>
//ToDo : Failure checks
public bool AddUrl(string Url, HttpResponseBuffer session)
{
bool retVal = false;
if (string.IsNullOrEmpty(Url))
{
_logger.Error(string.Format(Constants.LOG_RESOURCEUNABLETOADD, Url));
}
else
{
Url = Url.ToLower();
if (_httpUrlList.ContainsKey(Url))
{
HttpResponseBuffer val;
_httpUrlList.TryGetValue(Url, out val);
retVal = _httpUrlList.TryUpdate(Url, session, val);
}
else
{
retVal = _httpUrlList.TryAdd(Url, session);
}
if (retVal == true)
{
_logger.Info(string.Format(Constants.LOG_RESOURCEADDED, Url));
}
else
{
_logger.Error(string.Format(Constants.LOG_RESOURCEUNABLETOADD, Url));
}
}
return(retVal);
}
/// <summary>
/// Updates the Expiry of a url, by already given TimeOut parameter.
/// </summary>
/// <param name="url">Url for which expiry times need to updated.</param>
/// <param name="seconds">Time in seconds.</param>
public void PokeUrl(string url)
{
url = Utilities.CleanUnixUrl(url);
HttpResponseBuffer buffer = _httpUrlList.GetUrl(url);
if (buffer != null)
{
buffer.ExtendExpiryTime();
}
else
{
_logger.Error(string.Format(Constants.LOG_RESOURCENOTFOUND, url));
}
}
/// <summary>
/// Removes the Url and the object from ConcurrentDictionary.
/// </summary>
/// <param name="Url">Url which needs to be removed</param>
public bool RemoveUrl(string Url)
{
bool retVal = false;
HttpResponseBuffer responseBuffer = null;
if (Url == null)
{
_logger.Error(Constants.NULL_PATH_URL + Utilities.GetMethodName());
}
else
{
Url = Url.ToLower();
if (_httpUrlList.TryRemove(Url, out responseBuffer) == true)
{
retVal = true;
_logger.Info(string.Format(Constants.LOG_RESOURCEREMOVED, Url));
}
else
{
_logger.Error(string.Format(Constants.LOG_RESOURCENOTREMOVED, Url));
}
}
return(retVal);
}
/// <summary>
/// Gets HttpResponseBuffer object aligned with strUrl.
/// </summary>
/// <param name="strUrl">Url against which the response Buffer is extracted.</param>
/// <returns></returns>
public HttpResponseBuffer GetUrl(string strUrl)
{
HttpResponseBuffer responseBuffer = null;
if (strUrl == null)
{
_logger.Error(Constants.NULL_PATH_URL + Utilities.GetMethodName());
}
else
{
strUrl = strUrl.ToLower();
if (_httpUrlList.TryGetValue(strUrl, out responseBuffer) == true)
{
_logger.Info(string.Format(Constants.LOG_RESOURCEFOUND, strUrl));
}
else
{
_logger.Error(string.Format(Constants.LOG_RESOURCENOTFOUND, strUrl));
}
}
return(responseBuffer);
}