Open file from a network folder

Question

Hello! I need to open a certain file located in a folder sharing done through Samba Server on Ubuntu Webmin. The code below seems functional, but I get the error code: Incorrect user or password.

Process proc = new Process();
        proc.StartInfo = new ProcessStartInfo("\\\\192.168.10.116\\MarcaBus\\Arquivos\\Comprovantes\\arquivo.pdf");
        proc.StartInfo.UserName = "root";
        proc.StartInfo.Domain = "MYDOMAIN";

        string PwString = "Pmjm2018!@#";
        char[] PasswordChars = PwString.ToCharArray();
        SecureString Password = new SecureString();
        foreach (char c in PasswordChars)
            Password.AppendChar(c);

        proc.StartInfo.Password = Password;
        proc.StartInfo.UseShellExecute = false;
        proc.Start();

How do I get around this situation?

Answer 1

The problem may be in the way the password is being built in the SecureString.

Try creating the following method (do not forget the using System.Security):

using System.Security;

public static SecureString ConvertToSecureString(this string password)
{
    if (password == null)
        throw new ArgumentNullException("password");

    unsafe
    {
        fixed (char* passwordChars = password)
        {
            var securePassword = new SecureString(passwordChars, password.Length);
            securePassword.MakeReadOnly();
            return securePassword;
        }
    }
}

Then use it in the encoding of password when trying to execute the file opening/process with secure data:

string PwString = "Pmjm2018!@#";
SecureString secString = PwString.ConvertToSecureString();

var processInfo = new ProcessStartInfo
{
    WorkingDirectory = @"\\192.168.10.116\MarcaBus\Arquivos\Comprovantes",
    FileName = "arquivo.pdf",
    UserName = "root", 
    Password = secString,
    Domain = "MYDOMAIN",
    UseShellExecute = false,
};

Process.Start(processInfo);

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More information and details on the question Soen: Starting a process with a user name and password