protected internal virtual void OnCredentialsSupported(GitCredentialsEventArgs e)
{
var ev = CredentialsSupported;
if (ev != null)
ev(this, e);
}
void _clientArgs_CredentialsSupported(object sender, GitCredentialsEventArgs e)
{
Invoke(
new Action<GitCredentialsEventArgs, bool>(ProcessCredentials),
e, true
);
}
private void ProcessCredentials(GitCredentialsEventArgs e, bool checkSupports)
{
if (checkSupports)
{
foreach (var item in e.Items)
{
switch (item.Type)
{
case GitCredentialsType.Informational:
case GitCredentialsType.Password:
case GitCredentialsType.String:
case GitCredentialsType.Username:
case GitCredentialsType.YesNo:
break;
default:
e.Cancel = true;
break;
}
}
}
else
{
// First, see whether:
// * We are processing a username/password combination;
// * We can already process the information and yes/no types;
// * All credentials are already present in cache.
GitCredentialItem usernameItem = null;
GitCredentialItem passwordItem = null;
bool oneMissing = false;
foreach (var item in e.Items)
{
if (!ProcessCached(e.Uri, item))
{
oneMissing = true;
switch (item.Type)
{
case GitCredentialsType.Username:
usernameItem = item;
break;
case GitCredentialsType.Password:
passwordItem = item;
break;
case GitCredentialsType.Informational:
if (!ShowInformation(item))
_canceling = true;
break;
case GitCredentialsType.YesNo:
if (!ShowYesNo(item))
_canceling = true;
break;
}
if (_canceling)
{
e.Cancel = true;
return;
}
}
}
if (!oneMissing)
return;
// When we have both a username and password, we display a
// combined dialog for this one.
bool hadUsernamePassword = usernameItem != null && passwordItem != null;
bool rememberPassword = false;
if (hadUsernamePassword)
{
string description = String.Format(Properties.Resources.TheServerXRequiresAUsernameAndPassword, e.Uri);
if (Environment.OSVersion.Platform == PlatformID.Win32NT && Environment.OSVersion.Version >= new Version(5, 1))
{
// If Windows XP/Windows 2003 or higher: Use the windows password dialog
GetUserNamePasswordWindows(e, description, usernameItem, passwordItem, ref rememberPassword);
if (e.Cancel)
return;
}
else
{
using (UsernamePasswordCredentialsDialog dialog = new UsernamePasswordCredentialsDialog())
{
dialog.UsernameItem = usernameItem;
dialog.PasswordItem = passwordItem;
dialog.RememberPassword = rememberPassword;
if (dialog.ShowDialog(Context, this) != DialogResult.OK)
{
e.Cancel = true;
return;
}
rememberPassword = dialog.RememberPassword;
}
}
}
// Process the rest. These are processed in a generic dialog.
// Only when the type is Username, will the dialog not be
// displayed as a password dialog.
foreach (var item in e.Items)
{
switch (item.Type)
{
case GitCredentialsType.Informational:
case GitCredentialsType.YesNo:
// Already processed these above.
break;
case GitCredentialsType.Username:
case GitCredentialsType.Password:
rememberPassword = item.Type == GitCredentialsType.Password;
if (!hadUsernamePassword)
{
if (!ShowGeneric(item, ref rememberPassword))
_canceling = true;
}
break;
default:
rememberPassword = item.Type != GitCredentialsType.Username;
if (!ShowGeneric(item, ref rememberPassword))
_canceling = true;
break;
}
if (_canceling)
{
e.Cancel = true;
return;
}
}
if (rememberPassword)
{
foreach (var item in e.Items)
{
UpdateCache(e.Uri, item);
}
}
}
}
private void GetUserNamePasswordWindows(GitCredentialsEventArgs e, string description, GitCredentialItem usernameItem, GitCredentialItem passwordItem, ref bool rememberPassword)
{
NativeMethods.CREDUI_INFO info = new NativeMethods.CREDUI_INFO();
info.pszCaptionText = Properties.Resources.ConnectToGit;
info.pszMessageText = description;
info.hwndParent = IntPtr.Zero;
info.cbSize = Marshal.SizeOf(typeof(NativeMethods.CREDUI_INFO));
StringBuilder sbUserName = new StringBuilder("", 1024);
StringBuilder sbPassword = new StringBuilder("", 1024);
var flags =
NativeMethods.CREDUI_FLAGS.GENERIC_CREDENTIALS |
NativeMethods.CREDUI_FLAGS.ALWAYS_SHOW_UI |
NativeMethods.CREDUI_FLAGS.DO_NOT_PERSIST |
NativeMethods.CREDUI_FLAGS.SHOW_SAVE_CHECK_BOX;
var result = NativeMethods.CredUIPromptForCredentials(
ref info, e.Uri, IntPtr.Zero, 0, sbUserName, 1024,
sbPassword, 1024, ref rememberPassword, flags
);
switch (result)
{
case NativeMethods.CredUIReturnCodes.NO_ERROR:
usernameItem.Value = sbUserName.ToString();
passwordItem.Value = sbPassword.ToString();
break;
case NativeMethods.CredUIReturnCodes.ERROR_CANCELLED:
usernameItem.Value = null;
passwordItem.Value = null;
e.Cancel = true;
break;
}
}
