使用c＃中的身份validation复制文件
我试图将文件从本地驱动器复制到服务器上的文件夹之一。 服务器上文件夹的名称是“DBFiles”。 除了用户名’user’和密码’password1！’之外，没有人可以访问它。
在处理文件之前，如果不存在则创建目录。
有人可以帮助创建目录’测试’，然后复制文件。
if (!Directory.Exists(@"\\server-a\copiedfiles\")) Directory.CreateDirectory(@"\\server-a\DBFiles\"+Test); File.Copy("C:\Temp\abc.txt", @"\\server-a\DBFiles\"); 这是c＃中的原始代码。
NetworkShare.DisconnectFromShare(@"\\server-a\DBFiles", true); //Disconnect in case we are currently connected with our credentials; NetworkShare.ConnectToShare(@"\\server-a\DBFiles", "user1", "password1!"); //Connect with the new credentials File.Copy(@"c:\temp\T1.txt", @"\\server-a\DBFiles\T1.txt"); NetworkShare.DisconnectFromShare(@"\\server-a\DBFiles", false); //Disconnect from the server.
它因拒绝访问而给出错误。
另一种选择是，您可以以编程方式访问Windows的NET USE api并对共享进行身份validation，就像您在资源管理器中访问它并输入信用卡一样。
public static class NetworkShare { /// /// Connects to the remote share /// /// Null if successful, otherwise error message. public static string ConnectToShare(string uri, string username, string password) { //Create netresource and point it at the share NETRESOURCE nr = new NETRESOURCE(); nr.dwType = RESOURCETYPE_DISK; nr.lpRemoteName = uri; //Create the share int ret = WNetUseConnection(IntPtr.Zero, nr, password, username, 0, null, null, null); //Check for errors if (ret == NO_ERROR) return null; else return GetError(ret); } /// /// Remove the share from cache. /// /// Null if successful, otherwise error message. public static string DisconnectFromShare(string uri, bool force) { //remove the share int ret = WNetCancelConnection(uri, force); //Check for errors if (ret == NO_ERROR) return null; else return GetError(ret); } #region P/Invoke Stuff [DllImport("Mpr.dll")] private static extern int WNetUseConnection( IntPtr hwndOwner, NETRESOURCE lpNetResource, string lpPassword, string lpUserID, int dwFlags, string lpAccessName, string lpBufferSize, string lpResult ); [DllImport("Mpr.dll")] private static extern int WNetCancelConnection( string lpName, bool fForce ); [StructLayout(LayoutKind.Sequential)] private class NETRESOURCE { public int dwScope = 0; public int dwType = 0; public int dwDisplayType = 0; public int dwUsage = 0; public string lpLocalName = ""; public string lpRemoteName = ""; public string lpComment = ""; public string lpProvider = ""; } #region Consts const int RESOURCETYPE_DISK = 0x00000001; const int CONNECT_UPDATE_PROFILE = 0x00000001; #endregion #region Errors const int NO_ERROR = 0; const int ERROR_ACCESS_DENIED = 5; const int ERROR_ALREADY_ASSIGNED = 85; const int ERROR_BAD_DEVICE = 1200; const int ERROR_BAD_NET_NAME = 67; const int ERROR_BAD_PROVIDER = 1204; const int ERROR_CANCELLED = 1223; const int ERROR_EXTENDED_ERROR = 1208; const int ERROR_INVALID_ADDRESS = 487; const int ERROR_INVALID_PARAMETER = 87; const int ERROR_INVALID_PASSWORD = 1216; const int ERROR_MORE_DATA = 234; const int ERROR_NO_MORE_ITEMS = 259; const int ERROR_NO_NET_OR_BAD_PATH = 1203; const int ERROR_NO_NETWORK = 1222; const int ERROR_SESSION_CREDENTIAL_CONFLICT = 1219; const int ERROR_BAD_PROFILE = 1206; const int ERROR_CANNOT_OPEN_PROFILE = 1205; const int ERROR_DEVICE_IN_USE = 2404; const int ERROR_NOT_CONNECTED = 2250; const int ERROR_OPEN_FILES = 2401; private struct ErrorClass { public int num; public string message; public ErrorClass(int num, string message) { this.num = num; this.message = message; } } private static ErrorClass[] ERROR_LIST = new ErrorClass[] { new ErrorClass(ERROR_ACCESS_DENIED, "Error: Access Denied"), new ErrorClass(ERROR_ALREADY_ASSIGNED, "Error: Already Assigned"), new ErrorClass(ERROR_BAD_DEVICE, "Error: Bad Device"), new ErrorClass(ERROR_BAD_NET_NAME, "Error: Bad Net Name"), new ErrorClass(ERROR_BAD_PROVIDER, "Error: Bad Provider"), new ErrorClass(ERROR_CANCELLED, "Error: Cancelled"), new ErrorClass(ERROR_EXTENDED_ERROR, "Error: Extended Error"), new ErrorClass(ERROR_INVALID_ADDRESS, "Error: Invalid Address"), new ErrorClass(ERROR_INVALID_PARAMETER, "Error: Invalid Parameter"), new ErrorClass(ERROR_INVALID_PASSWORD, "Error: Invalid Password"), new ErrorClass(ERROR_MORE_DATA, "Error: More Data"), new ErrorClass(ERROR_NO_MORE_ITEMS, "Error: No More Items"), new ErrorClass(ERROR_NO_NET_OR_BAD_PATH, "Error: No Net Or Bad Path"), new ErrorClass(ERROR_NO_NETWORK, "Error: No Network"), new ErrorClass(ERROR_BAD_PROFILE, "Error: Bad Profile"), new ErrorClass(ERROR_CANNOT_OPEN_PROFILE, "Error: Cannot Open Profile"), new ErrorClass(ERROR_DEVICE_IN_USE, "Error: Device In Use"), new ErrorClass(ERROR_EXTENDED_ERROR, "Error: Extended Error"), new ErrorClass(ERROR_NOT_CONNECTED, "Error: Not Connected"), new ErrorClass(ERROR_OPEN_FILES, "Error: Open Files"), new ErrorClass(ERROR_SESSION_CREDENTIAL_CONFLICT, "Error: Credential Conflict"), }; private static string GetError(int errNum) { foreach (ErrorClass er in ERROR_LIST) { if (er.num == errNum) return er.message; } return "Error: Unknown, " + errNum; } #endregion #endregion }
你就像使用它一样
DisconnectFromShare(@"\\server-a\DBFiles", true); //Disconnect in case we are currently connected with our credentials; ConnectToShare(@"\\server-a\DBFiles", username, password); //Connect with the new credentials if (!Directory.Exists(@"\\server-a\DBFiles\")) Directory.CreateDirectory(@"\\server-a\DBFiles\"+Test); File.Copy("C:\Temp\abc.txt", @"\\server-a\DBFiles\"); DisconnectFromShare(@"\\server-a\DBFiles", false); //Disconnect from the server.
您可以使用模拟来更改线程用户上下文：
[DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)] public static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, out SafeTokenHandle phToken); ... LogonUser(userName, domainName, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, out safeTokenHandle); ... using (WindowsIdentity newId = new WindowsIdentity(safeTokenHandle.DangerousGetHandle())) { using (WindowsImpersonationContext impersonatedUser = newId.Impersonate()) { // Check the identity. Console.WriteLine("After impersonation: " + WindowsIdentity.GetCurrent().Name); //Do your coping here } }
MSDN示例windowsimpersonationcontext
NetworkShare.DisconnectFromShare(@"\\server-a\DBFiles", true); //Remove this line NetworkShare.ConnectToShare(@"\\server-a\DBFiles", "user1", "password1!"); //Connect with the new credentials File.Copy(@"c:\temp\T1.txt", @"\\server-a\DBFiles\T1.txt"); NetworkShare.DisconnectFromShare(@"\\server-a\DBFiles", false); //Remove this line also
经过02天的搜索，谷歌终于在上面为我工作了。 如果您在首次登录后使用“ NetworkShare.DisconnectFromShare ”，则会收到'Access denied'错误。 然后每次需要重新启动服务器或需要执行'net use * /del'命令来删除Windows中保存的凭据。
我从远程服务器完成了这个文件副本。 请找到代码。
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Net; using System.Security.Principal; using System.Runtime.InteropServices; namespace IMPolicy { public partial class ExtractData : System.Web.UI.Page { [DllImport("advapi32.DLL", SetLastError = true)] public static extern int LogonUser(string lpszUsername, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken); protected void Page_Load(object sender, EventArgs e) { AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal); IntPtr token = default(IntPtr); if (LogonUser("UserName", "Domain", "Password", 2, 0, ref token) != 0) { WindowsIdentity identity = new WindowsIdentity(token); WindowsImpersonationContext context = identity.Impersonate(); try { File.Copy(@"\\\\10.10.38.25\d$\\Sourav\\Draft Report ITC-LRBD_Online Booking Portal_12082016.pdf", @"d:\\Draft Report ITC-LRBD_Online Booking Portal_12082016.pdf", true); } finally { context.Undo(); } } } } }