一、挪用Net use敕令
// 运用要领：
//if (Connect("192.168.1.48", "用户名", "暗码"))
//{
// File.Copy(@"\\192.168.1.48\同享目次\test.txt", @"e:\\test.txt", true);
//}
public bool Connect(string remoteHost, string userName, string passWord)
{
bool Flag = true;
Process proc = new Process();
proc.StartInfo.FileName = "cmd.exe";
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.RedirectStandardInput = true;
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.RedirectStandardError = true;
proc.StartInfo.CreateNoWindow = true;
try
{
proc.Start();
string command = @"net use \\" + remoteHost + " " + passWord + " " + " /user:" + userName + ">NUL";
proc.StandardInput.WriteLine(command);
command = "exit";
proc.StandardInput.WriteLine(command);
while (proc.HasExited == false)
{
proc.WaitForExit(1000);
}
string errormsg = proc.StandardError.ReadToEnd();
if (errormsg != "")
Flag = false;
proc.StandardError.Close();
}
catch (Exception ex)
{
Flag = false;
}
finally
{
proc.Close();
proc.Dispose();
}
return Flag;
}
二、挪用WNetAddConnection2、WNetAddConnection3或许NetUseAdd函数，举行磁盘映照。
using System;using System.Collections.Generic;using System.Text; using System.Runtime.InteropServices;
namespace WindowsApplication1{ public class MyMap { [DllImport("mpr.dll", EntryPoint = "WNetAddConnection2")] public static extern uint WNetAddConnection2( [In] NETRESOURCE lpNetResource, string lpPassword, string lpUsername, uint dwFlags); [DllImport("Mpr.dll")] public static extern uint WNetCancelConnection2( string lpName, uint dwFlags, bool fForce); [StructLayout(LayoutKind.Sequential)] public class NETRESOURCE { public int dwScope; public int dwType; public int dwDisplayType; public int dwUsage; public string LocalName; public string RemoteName; public string Comment; public string Provider; }
// remoteNetworkPath format: @"\\192.168.1.48\sharefolder" // localDriveName format: @"E:" public static bool CreateMap(string userName, string password, string remoteNetworkPath, string localDriveName) { NETRESOURCE myNetResource = new NETRESOURCE(); myNetResource.dwScope = 2; //2:RESOURCE_GLOBALNET myNetResource.dwType = 1; //1:RESOURCETYPE_ANY myNetResource.dwDisplayType = 3; //3:RESOURCEDISPLAYTYPE_GENERIC myNetResource.dwUsage = 1; //1: RESOURCEUSAGE_CONNECTABLE myNetResource.LocalName = localDriveName; myNetResource.RemoteName = remoteNetworkPath; myNetResource.Provider = null;
uint nret = WNetAddConnection2(myNetResource, password, userName, 0);
if (nret == 0) return true; else return false; }
// localDriveName format: @"E:" public static bool DeleteMap(string localDriveName) { uint nret = WNetCancelConnection2(localDriveName, 1, true);
if (nret == 0) return true; else return false; }
public void test() { // 注重： // remote、local、username的花样一定要准确，不然能够涌现毛病 string remote = @"\\192.168.1.48\generals"; string local = @"P:"; string username = @"Domain\UserName"; string password = @"Password"; bool ret = MyMap.CreateMap(username, password, remote, local); if (ret) { //do what you want: // ... //File.Copy("q:\\test.htm", "c:\\test.htm");
MyMap.DeleteMap(local); } } }}
三、运用WebClient类
因为WebClient类能够上传下载文件，而且支撑以http:、https:和file:开首的URI，所以能够用WebClient类来传输文件。
增加System.Net定名空间后运用以下代码下载文件：
private void Test1() { try { WebClient client = new WebClient(); NetworkCredential cred = new NetworkCredential("username", "password", "172.16.0.222"); client.Credentials = cred; client.DownloadFile("file://172.16.0.222/test/111.txt", "111.txt"); } catch (Exception ex) { // 假如收集很慢，而文件又很大，这时候能够有超时非常（Time out）。 } }
public void Test2() { try { WebClient client = new WebClient(); NetworkCredential cred = new NetworkCredential("username", "password", "domain"); client.Credentials = cred; client.DownloadFile("file://172.16.0.222/test/111.txt", "111.txt"); } catch (Exception ex) { // 假如收集很慢，而文件又很大，这时候能够有超时非常（Time out）。 } }
相似的还能够尝尝WebRequest、FileWebRequest等：
WebRequest req = WebRequest.Create("file://138.12.12.14/generals/test.htm");
NetworkCredential cred = new NetworkCredential("username", "password", "IP");
req.Credentials = cred;
WebResponse response = req.GetResponse();
Stream strm = response.GetResponseStream();
StreamReader r = new StreamReader(strm);
... ...
四、角色模仿
/// <summary>
/// 身份模仿完成长途资本接见
/// </summary>
public class FileImpersonation
{
// logon types
const int LOGON32_LOGON_INTERACTIVE = 2;
const int LOGON32_LOGON_NETWORK = 3;
const int LOGON32_LOGON_NEW_CREDENTIALS = 9;
// logon providers
const int LOGON32_PROVIDER_DEFAULT = 0;
const int LOGON32_PROVIDER_WINNT50 = 3;
const int LOGON32_PROVIDER_WINNT40 = 2;
const int LOGON32_PROVIDER_WINNT35 = 1;
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern int LogonUser(string lpszUserName,
string lpszDomain,
string lpszPassword,
int dwLogonType,
int dwLogonProvider,
ref IntPtr phToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern int DuplicateToken(IntPtr hToken,
int impersonationLevel,
ref IntPtr hNewToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern bool RevertToSelf();
[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
public static extern bool CloseHandle(IntPtr handle);
private WindowsImpersonationContext impersonationContext;
/// <summary>
/// 身份模仿
/// </summary>
/// <param name="userName">自力效劳器用IP，域环境就用域名</param>
/// <param name="domain"></param>
/// <param name="password"></param>
/// <returns></returns>
public bool impersonateValidUser(string userName, string domain, string password)
{
WindowsIdentity tempWindowsIdentity;
IntPtr token = IntPtr.Zero;
IntPtr tokenDuplicate = IntPtr.Zero;
if (RevertToSelf())
{
// 这里运用LOGON32_LOGON_NEW_CREDENTIALS来接见长途资本。
// 假如要（经由过程模仿用户取得权限）完成效劳器顺序，接见当地受权数据库可
// 以用LOGON32_LOGON_INTERACTIVE
if (LogonUser(userName, domain, password, LOGON32_LOGON_NEW_CREDENTIALS,
LOGON32_PROVIDER_DEFAULT, ref token) != 0)
{
if (DuplicateToken(token, 2, ref tokenDuplicate) != 0)
{
tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
impersonationContext = tempWindowsIdentity.Impersonate();
if (impersonationContext != null)
{
AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);
IPrincipal pr = System.Threading.Thread.CurrentPrincipal;
IIdentity id = pr.Identity;
CloseHandle(token);
CloseHandle(tokenDuplicate);
return true;
}
}
}
}
if (token != IntPtr.Zero)
CloseHandle(token);
if (tokenDuplicate != IntPtr.Zero)
CloseHandle(tokenDuplicate);
return false;
}
/// <summary>
/// 作废模仿身份
/// </summary>
public void undoImpersonation()
{
impersonationContext.Undo();
}
/// <summary>
///
/// </summary>
/// <param name="domain">自力效劳器用IP，域环境就用域名</param>
/// <param name="username"></param>
/// <param name="password"></param>
/// <param name="act">须要实行的操纵</param>
public void ImpersonateFunc(string username, string domain, string password, Action act)
{
bool isImpersonated = false;
try
{
if (impersonateValidUser(username, domain, password))
{
isImpersonated = true;
//File.Copy(@"\\192.168.1.48\generals\now.htm", "c:\\now.htm", true);
act();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
finally
{
if (isImpersonated)
undoImpersonation();
}
}
//
}
FileImpersonation imp = new FileImpersonation();
imp.ImpersonateFunc("Administrator", "192.168.0.125", "xxxx", () =>
{
var source = new DirectoryInfo(@"D:\HR");
string targetFolder = @"\\192.168.0.125\d$\HR";
if (!Directory.Exists(targetFolder))
{
Directory.CreateDirectory(targetFolder);
}
foreach (FileInfo item in source.GetFiles())
{
string targertFile = Path.Combine(targetFolder, item.Name);
File.Copy(item.FullName, targertFile, true);
}
});
五、比较
要领一经由过程挪用Shell敕令Net Use完成，有点愚笨。
要领二和要领一有些相似之处。映照长途资本，然后接见。
要领三因为会有超时非常涌现，所以在收集速度快、传输小文件时是能够的。
要领四经由过程身份模仿完成长途资本接见。一些效劳器历程就是经由过程这类体式格局运转的。这类要领也是我的最爱。
六、要注重的处所
关于这几种要领，google后都能够找到一些文章。然则比及本身现实测试时，有时会涌现种种小毛病，
这些毛病基础来源于两方面：
1、函数的参数挑选有题目，和本身的环境不符合。
比方
public static extern int LogonUser(String lpszUserName,
String lpszDomain,
String lpszPassword,
int dwLogonType,
int dwLogonProvider,
ref IntPtr phToken);
中的dwLogonType，要接见长途资本就要用LOGON32_LOGON_NEW_CREDENTIALS，
要模仿本机用户就要用LOGON32_LOGON_INTERACTIVE。
2、函数的参数花样有题目。
a、比方
public static extern int LogonUser(String lpszUserName,
String lpszDomain,
String lpszPassword,
int dwLogonType,
int dwLogonProvider,
ref IntPtr phToken);
中的lpszUserName、lpszDomain、lpszPassword就要写清晰。
我就在这遇到过题目，第一次测试时，长途效劳器就是一台自力的文件效劳器，这是我的挪用体式格局：
LogonUser("myname", "192.168.1.48", "password", LOGON32_LOGON_NEW_CREDENTIALS,
LOGON32_PROVIDER_DEFAULT, ref token);
第二次测试时，长途效劳器是域MyDomain中的一个成员效劳器，供应文件效劳。这时候代码就应该是：
LogonUser("myname", "MyDomain", "password", LOGON32_LOGON_NEW_CREDENTIALS,
LOGON32_PROVIDER_DEFAULT, ref token);
注重，代码中是MyDomain而不是IP地点。
b、再如：
参考上面代码
string remote = @"\\192.168.1.48\generals";
string local = @"P:";
string username = @"Domain\UserName";
string password = @"Password";
假如@"\\192.168.1.48\generals"变成@"\\192.168.1.48\generals\”就会失足；
假如是域中的用户，那末把@"Domain\UserName"变成@"UserName"就会失足。
以上就是C#接见长途主机资本的多种要领分享的细致内容，更多请关注ki4网别的相干文章！
