CODEWITHSUNDEEP
c#
Ann
Ann

Reputation: 43

How to access files from other network using credentials in window service

I've created a window service application where it read files from other networks then save it to my database every 1 minute. I have been provided a username and password to access the file from the other network. Unfortunately, I don't know how to how to access the file with network username and. password Can you show me how. Thank you.

I know how to provide the path of the file from app.config

appSettings

add key="filepath" value="\111.111.1.11\dummyfolder\"

And access it to my code by this:

string path = ConfigurationManager.AppSettings["filepath"].ToString();

Upvotes: 0

Views: 342

Answers (1)

user2440074
user2440074

Reputation:

What can be easier?

class AuthHelper
    {
        public const int LOGON32_LOGON_INTERACTIVE = 2;
        public const int LOGON32_PROVIDER_DEFAULT = 0;

        [DllImport("advapi32.dll")]
        public static extern int LogonUserA(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);

        public static WindowsIdentity GetWindowsIdentityForUser(String userName, String password, String domain)
        {
            WindowsIdentity result = null;

            IntPtr token = IntPtr.Zero;
            IntPtr tokenDuplicate = IntPtr.Zero;

            if (RevertToSelf())
                if (LogonUserA(userName, domain, password, LOGON32_LOGON_INTERACTIVE, LOGON32_PROVIDER_DEFAULT, ref token) != 0)
                    if (DuplicateToken(token, 2, ref tokenDuplicate) != 0)
                    {
                        result = new WindowsIdentity(tokenDuplicate);
                        if (result != null) return result;
                    }

            if (token != IntPtr.Zero) CloseHandle(token);
            if (tokenDuplicate != IntPtr.Zero) CloseHandle(tokenDuplicate);

            return result;
        }
    }

And then just:

var identity = AuthHelper.GetWindowsIdentityForUser("other user", "password", "domain");
            using (var context = identity.Impersonate())
            {
                //do whatever you want as "other user"
            }

Upvotes: 0

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