/// <summary>
/// Saves a catalog.
/// </summary>
/// <param name="catalog">The catalog to save.</param>
/// <exception cref="IOException">A file could not be read or written or the GnuPG could not be launched or the catalog file could not be written.</exception>
/// <exception cref="UnauthorizedAccessException">Read or write access to a catalog file is not permitted.</exception>
/// <exception cref="KeyNotFoundException">An OpenPGP key could not be found.</exception>
private void SaveCatalog(Catalog catalog)
{
if (_xmlSign)
{
var openPgp = OpenPgpFactory.CreateDefault();
var signedCatalog = new SignedCatalog(catalog, openPgp.GetSecretKey(_key));
while (true)
{
try
{
signedCatalog.Save(_catalogFile, _openPgpPassphrase);
break; // Exit loop if passphrase is correct
}
catch (WrongPassphraseException ex)
{
// Continue loop if passhrase is incorrect
if (!string.IsNullOrEmpty(_openPgpPassphrase))
{
Log.Error(ex);
}
}
// Ask for passphrase to unlock secret key if we were unable to save without it
_openPgpPassphrase = CliUtils.ReadPassword(string.Format(Resources.AskForPassphrase, signedCatalog.SecretKey));
}
}
else
{
catalog.SaveXml(_catalogFile);
}
}
/// <summary>
/// Saves <see cref="Catalog"/> to an XML file, adds the default stylesheet and sign it it with <see cref="SecretKey"/> (if specified).
/// </summary>
/// <remarks>Writing and signing the catalog file are performed as an atomic operation (i.e. if signing fails an existing file remains unchanged).</remarks>
/// <param name="path">The file to save in.</param>
/// <param name="passphrase">The passphrase to use to unlock the secret key; can be <see langword="null"/> if <see cref="SecretKey"/> is <see langword="null"/>.</param>
/// <exception cref="IOException">A problem occurs while writing the file.</exception>
/// <exception cref="UnauthorizedAccessException">Write access to the file is not permitted.</exception>
/// <exception cref="WrongPassphraseException">Passphrase was incorrect.</exception>
public void Save([NotNull] string path, [CanBeNull] string passphrase = null)
{
#region Sanity checks
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException("path");
}
#endregion
if (SecretKey == null)
{
Catalog.SaveXml(path);
return;
}
var openPgp = OpenPgpFactory.CreateDefault();
using (var stream = new MemoryStream())
{
Catalog.SaveXml(stream, stylesheet: @"catalog.xsl");
stream.Position = 0;
FeedUtils.SignFeed(stream, SecretKey, passphrase, openPgp);
stream.WriteTo(path);
}
string directory = Path.GetDirectoryName(path);
if (directory != null)
{
FeedUtils.DeployPublicKey(directory, SecretKey, openPgp);
FeedUtils.DeployStylesheet(directory, @"catalog");
}
}
private void MassSignDialog_Load(object sender, EventArgs e)
{
comboBoxSecretKey.Items.Add("");
foreach (var secretKey in OpenPgpFactory.CreateDefault().ListSecretKeys())
{
comboBoxSecretKey.Items.Add(secretKey);
}
}
/// <summary>
/// Saves a feed.
/// </summary>
/// <exception cref="IOException">A file could not be read or written or the GnuPG could not be launched or the feed file could not be read or written.</exception>
/// <exception cref="UnauthorizedAccessException">Read or write access to a feed file is not permitted.</exception>
/// <exception cref="KeyNotFoundException">An OpenPGP key could not be found.</exception>
private void SaveFeed(FeedEditing feedEditing)
{
if (_unsign)
{
// Remove any existing signatures
feedEditing.SignedFeed.SecretKey = null;
}
else
{
var openPgp = OpenPgpFactory.CreateDefault();
if (_xmlSign)
{ // Signing explicitly requested
if (feedEditing.SignedFeed.SecretKey == null)
{ // No previous signature
// Use user-specified key or default key
feedEditing.SignedFeed.SecretKey = openPgp.GetSecretKey(_key);
}
else
{ // Existing siganture
if (!string.IsNullOrEmpty(_key)) // Use new user-specified key
{
feedEditing.SignedFeed.SecretKey = openPgp.GetSecretKey(_key);
}
//else resign implied
}
}
//else resign implied
}
// If no signing or unsigning was explicitly requested and the content did not change
// there is no need to overwrite (and potentiall resign) the file
if (!_xmlSign && !_unsign && !feedEditing.Changed)
{
return;
}
while (true)
{
try
{
Debug.Assert(feedEditing.Path != null);
feedEditing.SignedFeed.Save(feedEditing.Path, _openPgpPassphrase);
break; // Exit loop if passphrase is correct
}
catch (WrongPassphraseException ex)
{
// Continue loop if passhrase is incorrect
if (!string.IsNullOrEmpty(_openPgpPassphrase))
{
Log.Error(ex);
}
}
// Ask for passphrase to unlock secret key if we were unable to save without it
_openPgpPassphrase = CliUtils.ReadPassword(string.Format(Resources.AskForPassphrase, feedEditing.SignedFeed.SecretKey));
}
}
[STAThread] // Required for WinForms
private static void Main(string[] args)
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
ErrorReportForm.SetupMonitoring(new Uri("https://0install.de/error-report/"));
NetUtils.ApplyProxy();
var openPgp = OpenPgpFactory.CreateDefault();
if (args == null || args.Length == 0)
{
Application.Run(new WelcomeForm(openPgp));
}
else
{
try
{
var files = ArgumentUtils.GetFiles(args, "*.xml");
if (files.Count == 1)
{
string path = files.First().FullName;
Application.Run(new MainForm(FeedEditing.Load(path), openPgp));
}
else
{
MassSignForm.Show(files);
}
}
#region Error handling
catch (ArgumentException ex)
{
Msg.Inform(null, ex.Message, MsgSeverity.Warn);
}
catch (IOException ex)
{
Msg.Inform(null, ex.Message, MsgSeverity.Warn);
}
catch (UnauthorizedAccessException ex)
{
Msg.Inform(null, ex.Message, MsgSeverity.Warn);
}
catch (InvalidDataException ex)
{
Msg.Inform(null, ex.Message + (ex.InnerException == null ? "" : Environment.NewLine + ex.InnerException.Message), MsgSeverity.Warn);
}
#endregion
}
}
public static SignedCatalog Load([NotNull] string path)
{
#region Sanity checks
if (string.IsNullOrEmpty(path))
{
throw new ArgumentNullException("path");
}
#endregion
return(new SignedCatalog(XmlStorage.LoadXml <Catalog>(path), FeedUtils.GetKey(path, OpenPgpFactory.CreateDefault())));
}
