public static ResultCode GetString(Uri uri, NetworkCredential credential = null,
int timeout = 4 * 60 * 1000)
{
Trace.Assert(uri != null);
ResultCode resCode = ResultCode.UNKNOWN;
credential = credential ?? CredentialCache.DefaultNetworkCredentials;
var web = new WebClientWithTimeOut(timeout);
web.Credentials = credential;
web.DownloadProgressChanged += (s, e) => {
if (e == null)
{
return;
}
Console.Error.WriteLine("downloading: " + e.BytesReceived + " " + e.TotalBytesToReceive);
Console.Error.Flush();
};
web.DownloadStringCompleted += (s, e) => {
if (e.Cancelled)
{
resCode = ResultCode.CANCELLED;
Console.Error.WriteLine("cancelled");
Console.Error.Flush();
}
else if (e.Error != null)
{
resCode = ResultCode.ERROR;
Console.Error.WriteLine(e.Error.Message);
Console.Error.WriteLine(e.Error.StackTrace);
Console.Error.Flush();
}
else
{
resCode = ResultCode.COMPLETED;
Console.Out.WriteLine(e.Result);
Console.Out.Flush();
}
};
try { web.DownloadStringTaskAsync(uri).Wait(); }
catch (Exception exc) {
resCode = ResultCode.ERROR;
Console.Out.WriteLine(exc.StackTrace);
Console.Out.Flush();
PrintExceptions(exc, 0);
}
web.Dispose();
return(resCode);
}
public static ResultCode GetFile(Uri uri, string prefix, string dstFileName,
NetworkCredential credential = null, int timeout = 4 * 60 * 1000)
{
Trace.Assert(uri != null);
ResultCode resCode = ResultCode.UNKNOWN;
credential = credential ?? CredentialCache.DefaultNetworkCredentials;
string tmpFileName;
do
{
tmpFileName = Path.Combine(
prefix, Path.GetRandomFileName() + ".wgettmp");
} while (File.Exists(tmpFileName));
var web = new WebClientWithTimeOut(timeout);
web.Credentials = credential;
web.DownloadProgressChanged += (s, e) => {
if (e == null)
{
return;
}
Console.Error.WriteLine("downloading: " + e.BytesReceived + " " + e.TotalBytesToReceive);
Console.Error.Flush();
};
web.DownloadFileCompleted += (s, e) => {
if (e.Cancelled)
{
resCode = ResultCode.CANCELLED;
Console.Error.WriteLine("cancelled");
Console.Error.Flush();
}
else if (e.Error != null)
{
resCode = ResultCode.ERROR;
Console.Error.WriteLine(e.Error.Message);
Console.Error.WriteLine(e.Error.StackTrace);
Console.Error.Flush();
}
else
{
resCode = ResultCode.COMPLETED;
}
};
try { web.DownloadFileTaskAsync(uri, tmpFileName).Wait(); }
catch (Exception exc) {
resCode = ResultCode.ERROR;
Console.Error.WriteLine(exc.StackTrace);
Console.Error.Flush();
PrintExceptions(exc, 0);
}
if (resCode == ResultCode.COMPLETED)
{
if (dstFileName == null)
{
if (web.ResponseHeaders.Get("Content-Disposition") != null)
{
string _tmp = web.ResponseHeaders.Get("Content-Disposition");
_tmp = _tmp.Substring(_tmp.IndexOf("filename=") + 9).Replace("\"", "");
dstFileName = _tmp.Split(';')[0];
}
else
{
dstFileName = Path.GetFileName(uri.AbsolutePath);
}
dstFileName = Path.Combine(prefix, dstFileName);
}
try {
if (File.Exists(dstFileName))
{
File.Delete(dstFileName);
}
File.Move(tmpFileName, dstFileName);
}
catch (Exception exc) {
resCode = ResultCode.ERROR;
Console.Error.WriteLine(exc.StackTrace);
Console.Error.Flush();
PrintExceptions(exc, 0);
}
}
if (File.Exists(tmpFileName))
{
try { File.Delete(tmpFileName); }
catch (Exception) { }
}
Console.Out.WriteLine(resCode.ToString() + " " + dstFileName);
Console.Out.Flush();
web.Dispose();
return(resCode);
}
