Question

我正在尝试使用SFTP将文件从一台服务器传输到另一台服务器。我正在使用命令

sftp2 -i "public key path" "source file path" username@servername "destination file path"

当我在命令提示符下手动使用此命令时它工作正常，但我在C＃代码中使用相同的命令我正在发生错误

为此服务指定的帐户与帐户不同为在同一进程中运行的其他服务指定。

我知道为什么我会得到这个错误和解决方案。

提前致谢。

Answer 1

我的猜测是，你可能需要在调用SFTP时冒充其他用户（用户名@ servername）

using (new Impersonation(domain, username, password))
{
    // do the Sftp call.
}

使用Matt Johnson的代码。

using System;
using System.Runtime.ConstrainedExecution;
using System.Runtime.InteropServices;
using System.Security;
using System.Security.Permissions;
using System.Security.Principal;
using Microsoft.Win32.SafeHandles;

namespace MyApplication
{
    [PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
    public class Impersonation : IDisposable
    {
        private readonly SafeTokenHandle _handle;
        private readonly WindowsImpersonationContext _context;

        const int LOGON32_LOGON_NEW_CREDENTIALS = 9;

        public Impersonation(string domain, string username, string password)
        {
            var ok = LogonUser(username, domain, password,
                           LOGON32_LOGON_NEW_CREDENTIALS, 0, out this._handle);
            if (!ok)
            {
                var errorCode = Marshal.GetLastWin32Error();
                throw new ApplicationException(string.Format("Could not impersonate the elevated user.  LogonUser returned error code {0}.", errorCode));
            }

            this._context = WindowsIdentity.Impersonate(this._handle.DangerousGetHandle());
        }

        public void Dispose()
        {
            this._context.Dispose();
            this._handle.Dispose();
        }

        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        private static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, out SafeTokenHandle phToken);

        public sealed class SafeTokenHandle : SafeHandleZeroOrMinusOneIsInvalid
        {
            private SafeTokenHandle()
                : base(true) { }

            [DllImport("kernel32.dll")]
            [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
            [SuppressUnmanagedCodeSecurity]
            [return: MarshalAs(UnmanagedType.Bool)]
            private static extern bool CloseHandle(IntPtr handle);

            protected override bool ReleaseHandle()
            {
                return CloseHandle(handle);
            }
        }
    }
}

使用SFTP时出错

1 个答案: