private void lDeletedFiles_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
DependencyObject obj = (DependencyObject)e.OriginalSource;
while (obj != null && obj != lDeletedFiles)
{
if (obj.GetType() == typeof(System.Windows.Controls.ListViewItem))
{
string deletedFileName = ((VersionListViewItem)lDeletedFiles.SelectedItem).sFilename;
string deletedFilePath = ((VersionListViewItem)lDeletedFiles.SelectedItem).sPath;
FileUtenteList fileUtenteList = FileUtenteList.getInstance();
FileUtente[] deletedFileList = fileUtenteList.Deleted;
foreach (FileUtente fu in deletedFileList)
{
if (fu.Nome == deletedFileName && fu.Path == deletedFilePath)
{
deletedFileUtente = fu;
break;
}
}
lDeletedFileVersions.Items.Clear();
foreach (DateTime fv in deletedFileUtente.Items)
{
lDeletedFileVersions.Items.Add(new FileVersionListViewItem(fv));
}
break;
}
obj = VisualTreeHelper.GetParent(obj);
}
}
static public FileUtenteList getInstance()
{
if (_instance == null)
{
_instance = new FileUtenteList();
}
_instance.__file_list = new FileUtente[_instance.__list_ids_files.Count];
_instance.__deleted_list = new FileUtente[_instance.__list_deleted_ids.Count];
return(_instance);
}
private void GetDelFiles()
{
try
{
lDeletedFiles.Items.Clear();
lDeletedFileVersions.Items.Clear();
FileUtenteList fileUtenteList = FileUtenteList.getInstance();
foreach (FileUtente fu in fileUtenteList.Deleted)
{
lDeletedFiles.Items.Add(new VersionListViewItem(fu.Nome, fu.Path, fu.TempoModifica));
}
lDeletedFiles.SelectedIndex = 0;
}
catch (Exception ex)
{
updateStatus(ex.Message);
}
}
private void GetFiles()
{
try
{
lDetails.Items.Clear();
lFileVersions.Items.Clear();
FileUtenteList list = FileUtenteList.getInstance();
for (int i = 0; i < list.Length; i++)
{
lDetails.Items.Add(new VersionListViewItem(list[i].Nome, list[i].Path, list[i].TempoModifica));
}
lDetails.SelectedIndex = 0;
}
catch (Exception ex)
{
updateStatus(ex.Message);
}
}
public static void Check()
{
TimeZoneInfo tz = TimeZoneInfo.FindSystemTimeZoneById("Central Europe Standard Time");
if (!Directory.Exists(base_path))
{
return;
}
if (Monitor.TryEnter(syncLock))
{
try {
List <string[]> files = FileUtenteList.exploreFileSystem(base_path);
List <FileUtente> toBeDeleted = new List <FileUtente>();
FileUtenteList list = FileUtenteList.getInstance();
string[] entry = new string[2];
string path_completo;
Command c;
CultureInfo it = new CultureInfo("it-IT");
Thread.CurrentThread.CurrentCulture = it;
if (!init)
{
throw new ClientException("La classe per il controllo delle modifiche non è inizializzata correttamente.", ClientErrorCode.ControlloNonInizializzato);
}
if (!Command.Logged)
{
ComandoLogin login = new ComandoLogin(user, pwd);
login.esegui();
}
FileInfo finfo;
foreach (FileUtente fu in list)
{
//Check if still exists, and if its modified
entry[0] = fu.Nome;
entry[1] = fu.Path;
int index;
if ((index = files.FindIndex(fTest => (fTest[0] == entry[0] && fTest[1] == entry[1]))) >= 0)
{
files.RemoveAt(index);
//Il file selezionato esiste ancora...
path_completo = base_path + entry[1] + Path.DirectorySeparatorChar + entry[0];
finfo = new FileInfo(path_completo);
DateTime dt = TimeZoneInfo.ConvertTime(finfo.LastWriteTime, TimeZoneInfo.Local, tz);
DateTime tMod = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
tMod = tMod.AddTicks(-(tMod.Ticks % TimeSpan.TicksPerSecond));
if (DateTime.Compare(tMod, fu.TempoModifica) != 0)
{
FileStream fs = File.Open(path_completo, FileMode.Open);
string new_sha = FileUtente.CalcolaSHA256(fs);
if (new_sha != fu.SHA256Contenuto)
{
fu.aggiornaDati((int)finfo.Length, finfo.LastWriteTime);
c = new ComandoAggiornaContenutoFile(entry[0], entry[1], (int)finfo.Length,
finfo.LastWriteTime, fu.SHA256Contenuto);
c.esegui();
}
}
}
else
{
toBeDeleted.Add(fu);
}
}
//Cancelliamo
foreach (FileUtente _fu in toBeDeleted)
{
list.Delete(_fu.Id);
c = new ComandoEliminaFile(_fu.Nome, _fu.Path);
c.esegui();
}
//file nuovi
FileUtente fu2;
foreach (string[] n_file in files)
{
string file_path_completo = base_path + n_file[1] + Path.DirectorySeparatorChar + n_file[0];
finfo = new FileInfo(file_path_completo);
DateTime dt = TimeZoneInfo.ConvertTime(finfo.LastWriteTime, TimeZoneInfo.Local, tz);
DateTime tMod = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
tMod = tMod.AddTicks(-(tMod.Ticks % TimeSpan.TicksPerSecond));
dt = TimeZoneInfo.ConvertTime(finfo.CreationTime, TimeZoneInfo.Local, tz);
DateTime tCre = DateTime.SpecifyKind(dt, DateTimeKind.Utc);
tCre = tCre.AddTicks(-(tCre.Ticks % TimeSpan.TicksPerSecond));
FileStream fs = File.Open(file_path_completo, FileMode.Open);
string new_sha = FileUtente.CalcolaSHA256(fs);
fu2 = list.CreaNuovo(n_file[0], n_file[1], tCre, tMod, (int)finfo.Length, new_sha);
c = new ComandoNuovoFile(n_file[0], n_file[1], (int)finfo.Length, tCre, tMod, new_sha);
c.esegui();
}
}
finally
{
if (Monitor.IsEntered(syncLock))
{
Monitor.Exit(syncLock);
}
}
}
}
/// <summary>
/// In ordine questa funzione:
/// - Cancella il contenuto della cartella base_path
/// - Cancella il database e lo ricrea con le tabelle vuote
/// - Scarica la lista dei path relativi
/// - Per ogni path, ricrea le cartelle e scarica i file con le loro versioni
/// </summary>
public static void RestoreAsLastStatusOnServer()
{
bool tmp = checker.Enabled;
checker.Enabled = false;
Log l = Log.getLog();
lock (syncLock)
{
//Puliamo la cartella...
if (Directory.Exists(base_path))
{
Directory.Delete(base_path, recursive: true);
}
try
{
DB_Table.RebuildDB();
Directory.CreateDirectory(base_path);
ComandoListFolders c = new ComandoListFolders();
c.esegui();
FileUtenteList flist = FileUtenteList.getInstance();
foreach (string path_rel in c.Paths)
{
string[] directories = path_rel.Split('\\');
string tmp_path = base_path;
foreach (string dir in directories)
{
tmp_path += dir + "\\";
if (!Directory.Exists(tmp_path))
{
Directory.CreateDirectory(tmp_path);
}
}
ComandoListDir c2 = new ComandoListDir(path_rel);
c2.esegui();
foreach (string nome_file in c2.FileNames)
{
ComandoListVersions c_vers = new ComandoListVersions(nome_file, path_rel);
c_vers.esegui();
DateTime[] versions = c_vers.Versions;
DateTime last_vers = versions.Max();
ComandoScaricaFile c_scarica = new ComandoScaricaFile(nome_file, path_rel, last_vers);
c_scarica.esegui();
FileUtente fu = flist.CreaNuovo(nome_file, path_rel, last_vers, last_vers, c_scarica.Dim, c_scarica.SHAContenuto);
foreach (DateTime dt in versions)
{
if (dt != last_vers)
{
fu.AggiungiVersione(dt);
}
}
}
}
}
catch (ServerException e)
{
l.log(e.Message);
throw;
}
checker.Enabled = tmp;
}
}
/// <summary>
/// Carica la versione richiesta del file all'utente che lo richiede.
/// </summary>
/// <param name="s"></param>
/// <param name="dati">
/// [0]: nome_file
/// [1]: path relativo
/// [2]: timestamp versione (in Ticks)
/// </param>
/// <returns>
/// OK intermedio
/// token
/// dimensione file
/// sha contenuto
/// </returns>
public override bool esegui()
{
StringBuilder sb = new StringBuilder();
sb.Append(nome_comando).Append(Environment.NewLine).
Append(nome_file).Append(Environment.NewLine).
Append(path).Append(Environment.NewLine).
Append(t_creazione.Ticks).Append(Environment.NewLine).
Append(Environment.NewLine);
sendData(sb.ToString());
//control_stream_writer.Write(sb.ToString());
//control_stream_writer.Flush();
string response = null;
var respEnumerator = getResponses().GetEnumerator();
respEnumerator.MoveNext();
response = respEnumerator.Current;
if (response == null)
{
Monitor.Exit(sharedLock);
return(false);
}
try
{
string token = response;
if (!respEnumerator.MoveNext() || respEnumerator.Current == null)
{
Monitor.Exit(sharedLock);
return(false);
}
this.dim = Int32.Parse(respEnumerator.Current);
if (!respEnumerator.MoveNext() || respEnumerator.Current == null)
{
Monitor.Exit(sharedLock);
return(false);
}
this.sha_contenuto = respEnumerator.Current;
data_stream = CollegamentoDati.getCollegamentoDati(token);
respEnumerator.MoveNext();
}
catch
{
Monitor.Exit(sharedLock);
error_message = Properties.Messaggi.collegamentoDati;
error_code = ServerErrorCode.CollegamentoDatiNonDisponibile;
Connected = false;
return(false);
}
byte[] buffer = new byte[1024];
int size = 1024;
int tot_read = 0;
try
{
while ((size = data_stream.Read(buffer, 0, size)) != 0)
{
//Scrivo su un file temporaneo. Se tutto va bene sostituisco quello presente
//nella cartella dell'utente
tot_read += size;
tmp_file.Write(buffer, 0, size);
tmp_file.Flush();
}
}
catch
{
Monitor.Exit(sharedLock);
error_message = Properties.Messaggi.erroreConnessioneServer;
error_code = ServerErrorCode.ConnessioneInterrotta;
Connected = false;
return(false);
}
finally
{
tmp_file.Close();
data_stream.Close();
}
if (tot_read != this.dim)
{
error_message = Properties.Messaggi.datiInconsistenti;
error_code = ServerErrorCode.DatiInconsistenti;
Monitor.Exit(sharedLock);
return(false);
}
SHA256 sha_obj = SHA256Managed.Create();
byte[] hash_val;
tmp_file = File.Open(tmp_path, FileMode.Open);
hash_val = sha_obj.ComputeHash(tmp_file);
tmp_file.Close();
StringBuilder hex = new StringBuilder(hash_val.Length * 2);
foreach (byte b in hash_val)
{
hex.AppendFormat("{0:x2}", b);
}
string sha_reale = hex.ToString();
if (sha_reale != sha_contenuto.Trim())
{
error_message = Properties.Messaggi.datiInconsistenti;
error_code = ServerErrorCode.DatiInconsistenti;
Monitor.Exit(sharedLock);
return(false);
}
if (!respEnumerator.MoveNext() || respEnumerator.Current == null)
{
Monitor.Exit(sharedLock);
return(false);
}
while (respEnumerator.MoveNext())
{
;
}
Monitor.Exit(sharedLock);
FileUtenteList list = FileUtenteList.getInstance();
//vado a vedere il flag di validità sul db
//se è TRUE -> è una retrive di un file esistente
//se è FALSE -> è una retrive di un file cancellato
if (list.getValidity(this.nome_file, this.path) == true)
{
list[this.nome_file, this.path].aggiornaDatiPrec(this.dim, this.t_creazione, this.SHAContenuto);
}
else
{
FileUtente[] deleted = list.Deleted;
foreach (FileUtente fu in deleted)
{
if (fu.Nome == this.nome_file && fu.Path == this.path)
{
list.Ripristina(fu.Id);
fu.aggiornaDatiPrec(this.dim, this.t_creazione, this.SHAContenuto);
break;
}
}
}
try
{
// Ensure that the target does not exist.
if (File.Exists(path_completo))
{
File.Delete(path_completo);
}
// Move the file.
File.Move(tmp_path, path_completo);
}
catch (Exception e)
{
error_message = "Errore nel sostituire la versione precedente. " + e.Message;
error_code = ServerErrorCode.Unknown;
return(false);
}
return(true);
}
