private void ProvideStatus(string header, string message)
{
if (this.InvokeRequired)
{
this.Invoke(new StatusProvider(this.ProvideStatus), new object[] { header, message });
}
else
{
UnzipStatusReport f = new UnzipStatusReport();
f.Header= header;
f.Message= message;
f.ShowDialog();
}
}
private void DoExtract(Object obj)
{
List<string> itemsExtracted = new List<String>();
string targetDirectory = txtExtractDirectory.Text;
global::Ionic.Zip.ExtractExistingFileAction WantOverwrite = (Alienlab.Zip.ExtractExistingFileAction) Overwrite;
bool extractCancelled = false;
System.Collections.Generic.List<String> didNotOverwrite =
new System.Collections.Generic.List<String>();
_setCancel = false;
string currentPassword = "";
SetProgressBars();
try
{
// zip has already been set, when opening the exe.
zip.ExtractProgress += ExtractProgress;
foreach (global::Ionic.Zip.ZipEntry entry in zip)
{
if (_setCancel) { extractCancelled = true; break; }
if (entry.Encryption == global::Ionic.Zip.EncryptionAlgorithm.None)
{
try
{
entry.Extract(targetDirectory, WantOverwrite);
entryCount++;
itemsExtracted.Add(entry.FileName);
}
catch (Exception ex1)
{
if (WantOverwrite != global::Ionic.Zip.ExtractExistingFileAction.OverwriteSilently
&& ex1.Message.Contains("already exists."))
{
// The file exists, but the user did not ask for overwrite.
didNotOverwrite.Add(" " + entry.FileName);
}
else if (WantOverwrite == global::Ionic.Zip.ExtractExistingFileAction.OverwriteSilently ||
ex1.Message.Contains("already exists."))
{
DialogResult result = MessageBox.Show(String.Format("Failed to extract entry {0} -- {1}", entry.FileName, ex1.Message),
String.Format("Error Extracting {0}", entry.FileName), MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
if (result == DialogResult.Cancel)
{
_setCancel = true;
break;
}
}
}
}
else
{
bool done = false;
while (!done)
{
if (currentPassword == "")
{
string t = PromptForPassword(entry.FileName);
if (t == "")
{
done = true; // escape ExtractWithPassword loop
continue;
}
currentPassword = t;
}
if (currentPassword == null) // cancel all
{
_setCancel = true;
currentPassword = "";
break;
}
try
{
entry.ExtractWithPassword(targetDirectory, WantOverwrite, currentPassword);
entryCount++;
itemsExtracted.Add(entry.FileName);
done= true;
}
catch (Exception ex2)
{
// Retry here in the case of bad password.
if (ex2 as Alienlab.Zip.BadPasswordException != null)
{
currentPassword = "";
continue; // loop around, ask for password again
}
else if (WantOverwrite != global::Ionic.Zip.ExtractExistingFileAction.OverwriteSilently
&& ex2.Message.Contains("already exists."))
{
// The file exists, but the user did not ask for overwrite.
didNotOverwrite.Add(" " + entry.FileName);
done = true;
}
else if (WantOverwrite == global::Ionic.Zip.ExtractExistingFileAction.OverwriteSilently
&& !ex2.Message.Contains("already exists."))
{
DialogResult result = MessageBox.Show(String.Format("Failed to extract the password-encrypted entry {0} -- {1}", entry.FileName, ex2.Message.ToString()),
String.Format("Error Extracting {0}", entry.FileName), MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
done= true;
if (result == DialogResult.Cancel)
{
_setCancel = true;
break;
}
}
} // catch
} // while
} // else (encryption)
} // foreach
}
catch (Exception)
{
MessageBox.Show("The self-extracting zip file is corrupted.",
"Error Extracting", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
Application.Exit();
}
// optionally provide a status report
if (didNotOverwrite.Count > 0)
{
UnzipStatusReport f = new UnzipStatusReport();
if (didNotOverwrite.Count == 1)
f.Header = "This file was not extracted because the target file already exists:";
else
f.Header = String.Format("These {0} files were not extracted because the target files already exist:",
didNotOverwrite.Count);
f.Message = String.Join("\r\n", didNotOverwrite.ToArray());
f.ShowDialog();
}
SetUiDone();
if (extractCancelled) return;
// optionally open explorer
if (chk_OpenExplorer.Checked)
{
string w = System.Environment.GetEnvironmentVariable("WINDIR");
if (w == null) w = "c:\\windows";
try
{
Process.Start(Path.Combine(w, "explorer.exe"), targetDirectory);
}
catch { }
}
// optionally execute a command
postUpackExeDone = new ManualResetEvent(false);
if (this.chk_ExeAfterUnpack.Checked && PostUnpackCmdLineIsSet())
{
try
{
string[] cmd = SplitCommandLine(txtPostUnpackCmdLine.Text);
if (cmd != null && cmd.Length > 0)
{
object[] args = { cmd,
this.chk_Remove.Checked,
itemsExtracted,
targetDirectory
};
ThreadPool.QueueUserWorkItem(new WaitCallback(StartPostUnpackProc), args);
}
else postUpackExeDone.Set();
// else, nothing.
}
catch { postUpackExeDone.Set(); }
}
else postUpackExeDone.Set();
// quit if this is non-interactive
if (!Interactive)
{
postUpackExeDone.WaitOne();
Application.Exit();
}
}
