public static bool AuthCodePrompt(Program program, TargetUri targetUri, Github.GitHubAuthenticationResultType resultType, string username, out string authenticationCode)
{
// ReadConsole 32768 fail, 32767 ok @linquize [https://github.com/Microsoft/Git-Credential-Manager-for-Windows/commit/a62b9a19f430d038dcd85a610d97e5f763980f85]
const int BufferReadSize = 16 * 1024;
Debug.Assert(targetUri != null);
StringBuilder buffer = new StringBuilder(BufferReadSize);
uint read = 0;
uint written = 0;
authenticationCode = null;
NativeMethods.FileAccess fileAccessFlags = NativeMethods.FileAccess.GenericRead | NativeMethods.FileAccess.GenericWrite;
NativeMethods.FileAttributes fileAttributes = NativeMethods.FileAttributes.Normal;
NativeMethods.FileCreationDisposition fileCreationDisposition = NativeMethods.FileCreationDisposition.OpenExisting;
NativeMethods.FileShare fileShareFlags = NativeMethods.FileShare.Read | NativeMethods.FileShare.Write;
using (SafeFileHandle stdout = NativeMethods.CreateFile(NativeMethods.ConsoleOutName, fileAccessFlags, fileShareFlags, IntPtr.Zero, fileCreationDisposition, fileAttributes, IntPtr.Zero))
using (SafeFileHandle stdin = NativeMethods.CreateFile(NativeMethods.ConsoleInName, fileAccessFlags, fileShareFlags, IntPtr.Zero, fileCreationDisposition, fileAttributes, IntPtr.Zero))
{
string type = resultType == Github.GitHubAuthenticationResultType.TwoFactorApp
? "app"
: "sms";
Git.Trace.WriteLine($"2fa type = '{type}'.");
buffer.AppendLine()
.Append("authcode (")
.Append(type)
.Append("): ");
if (!NativeMethods.WriteConsole(stdout, buffer, (uint)buffer.Length, out written, IntPtr.Zero))
{
int error = Marshal.GetLastWin32Error();
throw new Win32Exception(error, "Unable to write to standard output (" + NativeMethods.Win32Error.GetText(error) + ").");
}
buffer.Clear();
// read input from the user
if (!NativeMethods.ReadConsole(stdin, buffer, BufferReadSize, out read, IntPtr.Zero))
{
int error = Marshal.GetLastWin32Error();
throw new Win32Exception(error, "Unable to read from standard input (" + NativeMethods.Win32Error.GetText(error) + ").");
}
authenticationCode = buffer.ToString(0, (int)read);
authenticationCode = authenticationCode.Trim(Program.NewLineChars);
}
return(authenticationCode != null);
}
internal bool GitHubAuthCodePrompt(TargetUri targetUri, Github.GitHubAuthenticationResultType resultType, string username, out string authenticationCode) => _gitHubAuthCodePrompt(this, targetUri, resultType, username, out authenticationCode);
public static bool AuthCodePrompt(Program program, TargetUri targetUri, Github.GitHubAuthenticationResultType resultType, string username, out string authenticationCode)
{
// ReadConsole 32768 fail, 32767 ok @linquize [https://github.com/Microsoft/Git-Credential-Manager-for-Windows/commit/a62b9a19f430d038dcd85a610d97e5f763980f85]
const int BufferReadSize = 16 * 1024;
if (program is null)
{
throw new ArgumentNullException(nameof(program));
}
if (targetUri is null)
{
throw new ArgumentNullException(nameof(targetUri));
}
var trace = program.Trace;
StringBuilder buffer = new StringBuilder(BufferReadSize);
uint read = 0;
uint written = 0;
authenticationCode = null;
var fileAccessFlags = FileAccess.GenericRead
| FileAccess.GenericWrite;
var fileAttributes = FileAttributes.Normal;
var fileCreationDisposition = FileCreationDisposition.OpenExisting;
var fileShareFlags = FileShare.Read
| FileShare.Write;
using (SafeFileHandle stdout = CreateFile(fileName: ConsoleOutName,
desiredAccess: fileAccessFlags,
shareMode: fileShareFlags,
securityAttributes: IntPtr.Zero,
creationDisposition: fileCreationDisposition,
flagsAndAttributes: fileAttributes,
templateFile: IntPtr.Zero))
using (SafeFileHandle stdin = CreateFile(fileName: ConsoleInName,
desiredAccess: fileAccessFlags,
shareMode: fileShareFlags,
securityAttributes: IntPtr.Zero,
creationDisposition: fileCreationDisposition,
flagsAndAttributes: fileAttributes,
templateFile: IntPtr.Zero))
{
string type = resultType == Github.GitHubAuthenticationResultType.TwoFactorApp
? "app"
: "sms";
trace.WriteLine($"2fa type = '{type}'.");
buffer.AppendLine()
.Append("authcode (")
.Append(type)
.Append("): ");
if (!WriteConsole(buffer: buffer,
consoleOutputHandle: stdout,
numberOfCharsToWrite: (uint)buffer.Length,
numberOfCharsWritten: out written,
reserved: IntPtr.Zero))
{
int error = Marshal.GetLastWin32Error();
throw new Win32Exception(error, "Unable to write to standard output (" + NativeMethods.Win32Error.GetText(error) + ").");
}
buffer.Clear();
// read input from the user
if (!ReadConsole(buffer: buffer,
consoleInputHandle: stdin,
numberOfCharsToRead: BufferReadSize,
numberOfCharsRead: out read,
reserved: IntPtr.Zero))
{
int error = Marshal.GetLastWin32Error();
throw new Win32Exception(error, "Unable to read from standard input (" + Win32Error.GetText(error) + ").");
}
authenticationCode = buffer.ToString(0, (int)read);
authenticationCode = authenticationCode.Trim(program.NewLineChars);
}
return(authenticationCode != null);
}
