/// <summary>
/// delete junk files
/// </summary>
/// <param name="junk"></param>
/// <returns></returns>
public static ulong ProcessJunk(ArrayList junk)
{
ulong gainedSize = 0;
ABORT = false;
string backto = string.Empty;
if (Preferences.BackupJunk)
{
backto = Path.GetDirectoryName(Application.ExecutablePath) + Path.DirectorySeparatorChar +
"backup" + Path.DirectorySeparatorChar +
DateTime.Now.ToString("yyyyMMddHHmmss") + Path.DirectorySeparatorChar;
try
{
Directory.CreateDirectory(backto);
}
catch
{
backto = Path.GetDirectoryName(Application.ExecutablePath) + Path.DirectorySeparatorChar;
}
if (!Directory.Exists(backto)) backto = string.Empty;
}
bool back = backto != string.Empty;
Dictionary<DeleteFile, string> success = new Dictionary<DeleteFile, string>();
foreach (DeleteFile del in junk)
{
if (ABORT) break;
if (del.Delete)
{
string succ = string.Empty;
string from = del.Name;
if (back)
{
Guid guid = Guid.NewGuid();
string to = backto + guid;
try
{
File.Copy(from, to);
succ = guid.ToString();
}
catch
{
succ = "FB";
} // failed backup
}
if ((back && string.IsNullOrEmpty(succ)) || !back)
{
try
{
File.Delete(from);
gainedSize += (ulong)(del.Info.Length);
}
catch
{
succ = "FD";
} // failed copy
}
success.Add(del, succ);
if (OnProgress != null)
{
Current = del;
OnProgress(null, EventArgs.Empty);
}
}
}
if (Preferences.BackupJunk && !string.IsNullOrEmpty(backto))
{
XmlDocument xml = new XmlDocument();
XmlElement element = xml.CreateElement("DiskCleanerBackup");
foreach (DeleteFile del in success.Keys)
{
XmlElement subelement = xml.CreateElement("item");
Preferences.AddToXML("filename", del.Name, ref xml, ref subelement);
Preferences.AddToXML("guid", success[del], ref xml, ref subelement);
element.AppendChild(subelement);
}
xml.AppendChild(element);
try
{
xml.Save(backto + "backupinfo.xml");
}
catch
{
}
}
return gainedSize;
}
/// <summary>
/// restore deleted folder form backup
/// </summary>
/// <param name="folder"></param>
/// <param name="overwrite"></param>
public static void RestoreFolder(string folder, bool overwrite)
{
ABORT = false;
string restorefrom = Directory.Exists(folder)
? folder
: Path.GetDirectoryName(Application.ExecutablePath) + Path.DirectorySeparatorChar +
"backup" + Path.DirectorySeparatorChar +
folder + Path.DirectorySeparatorChar;
if (!Directory.Exists(restorefrom)) return;
if (!File.Exists(restorefrom + "backupinfo.xml")) return;
XmlDocument xml = new XmlDocument();
try
{
xml.Load(restorefrom + "backupinfo.xml");
}
catch
{
return;
}
if (!xml.HasChildNodes || xml.FirstChild.Name != "DiskCleanerBackup" || !xml.FirstChild.HasChildNodes) return;
List<XmlNode> nodes = new List<XmlNode>();
if (xml.DocumentElement != null)
{
XmlNode elem = xml.DocumentElement.FirstChild;
while (elem != null)
{
if (elem.Name == "item" && elem.HasChildNodes && elem.ChildNodes.Count == 2)
nodes.Add(elem);
elem = elem.NextSibling;
}
}
string from = string.Empty;
Dictionary<XmlNode, string> result = new Dictionary<XmlNode, string>();
foreach (XmlNode node in nodes)
{
string succ;
XmlElement element = node["guid"];
if (element != null)
from = restorefrom + element.InnerText;
XmlElement xmlElement = node["filename"];
string to = string.Empty;
if (xmlElement != null)
to = xmlElement.InnerText;
if (!File.Exists(from))
succ = "FO"; // failed original
else
{
if (File.Exists(to) && !overwrite)
{
succ = "FW"; // failed overwrite not allowed
}
else
{
try
{
if (!string.IsNullOrEmpty(from) && !string.IsNullOrEmpty(to))
File.Copy(from, to, overwrite);
succ = "OK";
}
catch
{
succ = "FC";
} // failed to copy
}
}
result.Add(node, succ);
if (OnProgress != null)
{
Current = new DeleteFile(from, false);
OnProgress(null, EventArgs.Empty);
if (ABORT) break;
}
}
foreach (XmlNode node in result.Keys)
if (result[node] == "OK")
{
if (xml.DocumentElement != null)
xml.DocumentElement.RemoveChild(node);
try
{
XmlNode xmlElement = node["guid"];
if (xmlElement != null)
File.Delete(restorefrom + xmlElement.InnerText);
}
catch
{
}
}
if (xml.DocumentElement.HasChildNodes)
{
try
{
xml.Save(restorefrom + "backupinfo.xml");
}
catch
{
}
}
try
{
Directory.Delete(restorefrom, true);
}
catch
{
}
}