/// <summary>
/// Redownload files with given relative filenames.
/// </summary>
/// <returns>RunWorkerCompletedEventArgs. True if the download is succeeded, otherwise false.</returns>
public static RunWorkerCompletedEventArgs RedownloadFile(ExtendedWebClient _webClient, string relativeFilename, string destinationFullfilename, Func <int, bool> progress_callback)
{
bool continueDownload = true;
Exception Myex = null;
Uri currenturl = null;
DownloadProgressChangedEventHandler ooooo = null;
if (progress_callback != null)
{
ooooo = new DownloadProgressChangedEventHandler(delegate(object sender, DownloadProgressChangedEventArgs e)
{
if (progress_callback.Invoke(e.ProgressPercentage))
{
continueDownload = false;
_webClient.CancelAsync();
}
});
}
if (ooooo != null)
{
_webClient.DownloadProgressChanged += ooooo;
}
try
{
HttpStatusCode lastCode;
var _pso22fileurl = new PSO2FileUrl(Leayal.UriHelper.URLConcat(DefaultValues.Web.MainDownloadLink, relativeFilename), Leayal.UriHelper.URLConcat(DefaultValues.Web.OldDownloadLink, relativeFilename));
currenturl = _pso22fileurl.MainUrl;
lastCode = HttpStatusCode.ServiceUnavailable;
try
{
_webClient.AutoUserAgent = true;
_webClient.DownloadFile(currenturl, destinationFullfilename);
_webClient.AutoUserAgent = false;
}
catch (WebException webEx)
{
if (webEx.Response != null)
{
HttpWebResponse rep = webEx.Response as HttpWebResponse;
lastCode = rep.StatusCode;
}
else
{
throw webEx;
}
}
if (lastCode == HttpStatusCode.NotFound)
{
currenturl = _pso22fileurl.GetTheOtherOne(currenturl.OriginalString);
try
{
_webClient.AutoUserAgent = true;
_webClient.DownloadFile(currenturl, destinationFullfilename);
_webClient.AutoUserAgent = false;
}
catch (WebException webEx)
{
if (webEx.Response != null)
{
HttpWebResponse rep = webEx.Response as HttpWebResponse;
if (rep.StatusCode != HttpStatusCode.NotFound)
{
throw webEx;
}
}
else
{
throw webEx;
}
}
}
}
catch (Exception ex) { Myex = ex; }
if (ooooo != null)
{
_webClient.DownloadProgressChanged -= ooooo;
}
return(new RunWorkerCompletedEventArgs(null, Myex, !continueDownload));
}
