internal DialogResult Run(BackgroundWorker worker, DownloadInstructions instr)
{
this.worker = worker;
this.instr = instr;
return(ShowDialog());
}
void worker_DoWork(object sender, DoWorkEventArgs e)
{
check = false;
BackgroundWorker worker = sender as BackgroundWorker;
DownloadInstructions instr = (DownloadInstructions)e.Argument;
bool harddiskMode = Directory.Exists(instr.From);
string to = instr.To;
string from = instr.From; //downloadLocation;
ModuleUpdateFilePath[] download = instr.Files; //config[localVersion.ToString()].GetStrings("game_add");
string[] remove = new string[0]; //config[localVersion.ToString()].GetStrings("game_remove");
if (download.Length == 0)
{
finished.Set();
return;
}
int totalsize = 0;
using (WebClientEx client = new WebClientEx())
{
// make backup
worker.ReportProgress(0, Program.Text[instr.Text].Get("backup"));
string backupPath = "tmp/backup/";
Directory.CreateDirectory(backupPath);
foreach (ModuleUpdateFilePath str in download)
{
string dir = Path.GetDirectoryName(str.File);
if (!Directory.Exists(backupPath + dir))
{
Directory.CreateDirectory(backupPath + dir);
}
if (System.IO.File.Exists(str.File))
{
System.IO.File.Copy(str.File, backupPath + str.File, true);
}
}
// remove old files
foreach (string str in remove)
{
string[] filenames = Directory.GetFiles(gamePath, str);
foreach (string filename in filenames)
{
System.IO.File.Delete(filename);
}
}
// retrieve file size
worker.ReportProgress(0, Program.Text[instr.Text].Get("retrieve"));
int index = 0;
// get info
do
{
string filename = from + download[index].FullPath;
try
{
if (harddiskMode)
{
FileInfo info = new FileInfo(filename);
totalsize += (int)info.Length;
}
else
{
totalsize += GetHttpFileSize(filename);
}
}
catch
{
MessageBox.Show(string.Format(Program.Text[instr.Text].Get("error1"), filename),
Program.Text[instr.Text].Get("error"));
worker.ReportProgress(-1);
finished.Set();
return;
}
index++;
} while (!worker.CancellationPending && index < download.Length);
if (worker.CancellationPending)
{
finished.Set();
return;
}
int downloaded = 0;
bool open = false;
// download
string msg = Program.Text[instr.Text].Get("download");
worker.ReportProgress(0, string.Format(msg, GetSizeString(instr.Text, downloaded), GetSizeString(instr.Text, totalsize))); index = 0;
Stream strResponse = null;
Stream strLocal = null;
byte[] downBuffer = new byte[2048];
int progress = 0;
do
{
if (!open)
{
string filename = from + download[index].FullPath;
msg = Program.Text[instr.Text].Get("download_file");
worker.ReportProgress(progress, string.Format(msg, download[index], GetSizeString(instr.Text, downloaded), GetSizeString(instr.Text, totalsize)));
try
{
// get download stream
if (harddiskMode)
{
strResponse = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
}
else
{
strResponse = client.OpenRead(filename);
}
}
catch
{
MessageBox.Show(string.Format(Program.Text[instr.Text].Get("error2"), filename),
Program.Text[instr.Text].Get("error"));
worker.ReportProgress(-1);
break;
}
// create local file
strLocal = new FileStream(to + download[index].File, FileMode.Create, FileAccess.Write, FileShare.None);
open = true;
}
int bytesSize = 0;
// download 2kb
bytesSize = strResponse.Read(downBuffer, 0, downBuffer.Length);
if (bytesSize > 0)
{
// save to harddrive
strLocal.Write(downBuffer, 0, bytesSize);
// report progress
downloaded += bytesSize;
// update progress if changed
float fprogress = downloaded * 100.0f / totalsize;
//if (progress != (int)fprogress)
{
progress = (int)fprogress;
msg = Program.Text[instr.Text].Get("download_file");
worker.ReportProgress(progress, string.Format(msg, download[index].File, GetSizeString(instr.Text, downloaded), GetSizeString(instr.Text, totalsize)));
}
}
else
{
strLocal.Close();
strResponse.Close();
open = false;
}
if (!open)
{
index++;
}
} while (!worker.CancellationPending && index < download.Length);
strLocal.Close();
strResponse.Close();
// download was cancelled
if (worker.CancellationPending)
{
worker.ReportProgress(progress, Program.Text[instr.Text].Get("rollback"));
// delete downloaded files
foreach (ModuleUpdateFilePath file in download)
{
if (System.IO.File.Exists(to + file.File))
{
System.IO.File.Delete(to + file.File);
}
}
// restore backup
foreach (ModuleUpdateFilePath file in download)
{
if (System.IO.File.Exists(backupPath + file.File))
{
System.IO.File.Copy(backupPath + file.File, to + file.File, true);
}
}
}
// remove backup
Directory.Delete(backupPath, true);
}
if (worker.CancellationPending)
{
worker.ReportProgress(100, Program.Text[instr.Text].Get("cancel"));
}
else
{
worker.ReportProgress(100, string.Format(Program.Text[instr.Text].Get("finish"), GetSizeString(instr.Text, totalsize)));
}
finished.Set();
check = true;
}
