/// <summary>
/// Gets the specified URL, from the cache if possible
/// </summary>
/// <param name="URL">URL address to get data from</param>
/// <param name="SkipCache">Skip caching and grab live data</param>
/// <returns></returns>
private byte[] GetWebData(string URL, bool SkipCache)
{
// Initialize the cache if required
if (RequestCache == null)
{
RequestCache = new Dictionary <string, CachedWebRequest>();
}
// Hash the URL so we can refer to it later
string URLHash = CommonFunctions.CalculateMD5Hash(URL);
if (!SkipCache)
{
if (RequestCache.ContainsKey(URLHash))
{
if (DateTime.Now.Subtract(RequestCache[URLHash].LastUpdated) <= CacheLifetime)
{
return(RequestCache[URLHash].Data);
}
else
{
RequestCache.Remove(URLHash);
}
}
}
// Get the request from the web
using (WebClient client = new WebClient())
{
byte[] dataReturned = client.DownloadData(URL);
if (dataReturned.Length > 0)
{
if (!SkipCache)
{
RequestCache.Add(URLHash, new CachedWebRequest(URL, dataReturned));
}
return(dataReturned);
}
}
return(new byte[0]);
}