Month: January 2017

C# A folder sync tool

On By windows7bugsIn .net programming6 Comments

Hi guys!

I’ve been busy with so many developments recently. Few projects for Oracle E-Business Suite R12 & few others for learning C#. I can say I’ve “learned” how to copy, paste, correct and use it with my projects to produce beautiful results!

My recent C# projects include a WPF solution that uses WMI classes to generate hardware details for entire Windows Domain (Linux boxes are not dealt) & today I’ve decided to build a small solution that could synchronize my C# projects with our file server.

This small project can,

  • Replicate source Directory, subdirectories & files to destination folder
  • While re-ran, check whether the destination files are older than the source files and, if yes, overwrite the old ones with newer ones.

Interested to try it yourself? here comes the code

(This project uses codes copied from both MSDN & http://www.stackoverflow.com. RecursiveFileProcessor is a MSDN example, while File exists snippet was copied from stackoverflow)

[code language=”csharp” gutter=”false”]
using System;
using System.IO;
using System.Collections;

//http://stackoverflow.com/questions/58744/copy-the-entire-contents-of-a-directory-in-c-sharp
//

namespace RecursiveFileProcessor
{
class Program
{
public static void Main(string[] args)
{
string sourceDirectory = @"D:\MyProjects";
string targetDirectory = @"\\network_share_location\MyProjects";
Copy(sourceDirectory, targetDirectory);
Console.WriteLine();
Console.WriteLine("Task Completed. Press any key to continue");
Console.ReadLine();

}

public static void Copy(string sourceDirectory, string targetDirectory)
{
DirectoryInfo diSource = new DirectoryInfo(sourceDirectory);
DirectoryInfo diTarget = new DirectoryInfo(targetDirectory);

CopyAll(diSource, diTarget);
}

public static void CopyAll(DirectoryInfo source, DirectoryInfo target)
{

Directory.CreateDirectory(target.FullName);

// Copy each file into the new directory.
foreach (FileInfo fi in source.GetFiles())
{

DateTime created = fi.CreationTime;
DateTime lastmodified = fi.LastWriteTime;

if (File.Exists(Path.Combine(target.FullName, fi.Name)))
{
string tFileName = Path.Combine(target.FullName, fi.Name);
FileInfo f2 = new FileInfo(tFileName);
DateTime lm = f2.LastWriteTime;
Console.WriteLine(@"File {0}\{1} Already Exist {2} last modified {3}", target.FullName, fi.Name, tFileName, lm);

try
{
if (lastmodified > lm)
{
Console.WriteLine(@"Source file {0}\{1} last modified {2} is newer than the target file {3}\{4} last modified {5}",
fi.DirectoryName, fi.Name, lastmodified.ToString(), target.FullName, fi.Name, lm.ToString());
fi.CopyTo(Path.Combine(target.FullName, fi.Name), true);
}
else
{
Console.WriteLine(@"Destination File {0}\{1} Skipped", target.FullName, fi.Name);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}

}
else
{
Console.WriteLine(@"Copying {0}\{1}", target.FullName, fi.Name);
fi.CopyTo(Path.Combine(target.FullName, fi.Name), true);
}

}

// Copy each subdirectory using recursion.
foreach (DirectoryInfo diSourceSubDir in source.GetDirectories())
{
DirectoryInfo nextTargetSubDir =
target.CreateSubdirectory(diSourceSubDir.Name);
CopyAll(diSourceSubDir, nextTargetSubDir);
}
}

}
}

[/code]

Thumb rules:

  1. Do not set your source and destination folders the same.

This project uses Framework 4.5 & I am sure versions above 2.0 should support the classes referred.

If you are new to .net developments, create a project with the name “RecursiveFileProcessor”, which will let you copy and paste the whole code as it is to your project.

Do let me know whether you enjoyed your new sync toy!

regards,

rajesh

C# (CSharp, C-Sharp) Windows Active Directory last logon

On By windows7bugsIn .net programming, Active Directory, UncategorizedLeave a comment

Hi guys

Please note, many threads were referred in order to compile the script attached below & all I did was re-arranging in order for better reading/formatting

(And I insure that the script works under following scenarios:

  1. You are a domain administrator
  2. You are administrating Windows 2003 onwards Windows domain
  3. Your puter is connected to the domain network ;)

)

Referenced websites/threads

  1. http://stackoverflow.com/questions/15775264/searching-for-lastlogon-attribute-of-user-in-multiple-domain-servers
  2. https://www.codeproject.com/kb/security/lastlogonacrossallwindows.aspx#_comments
  3. http://codebeautify.org/csharpviewer (for formatting the C# code)

How to test the code

Start Visual Studio (I am using 2013 Professional edition, you can use any of the community editions to test the scripts)

Create a new C# Console Application and name it llogon (else you need to change the namespace name “llogon” according to the name you have chosen for your new project.

Add the following references to your project

  1. “Framework -> System.DirectoryServices”
  2. “Browse and add -> C:\Windows\System32\activeds.tlb”

 

[code language=”csharp” gutter=”false”]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

//Added by Rajesh

//using System.Management;
//using System.Data;
using System.DirectoryServices;
using System.DirectoryServices.ActiveDirectory;
//http://stackoverflow.com/questions/33274162/the-namespace-of-iadslargeinteger
//ActiveDS namespace
using ActiveDs; // Namespace added via ref to C:\Windows\System32\activeds.tlb
//https://www.codeproject.com/kb/security/lastlogonacrossallwindows.aspx

namespace llogon
{
class Program
{
static void Main(string[] args)
{
// Get the root entry
DirectoryEntry rootDSE = new DirectoryEntry("LDAP://RootDSE");
string configurationNamingContext =
(string)rootDSE.Properties["configurationNamingContext"].Value;
string defaultNamingContext =
(string)rootDSE.Properties["defaultNamingContext"].Value;
Dictionary<string, Int64> lastLogons = new Dictionary<string, Int64>();
// Get all the domain controllers
DirectoryEntry deConfig = new DirectoryEntry("LDAP://" + configurationNamingContext);
DirectorySearcher dsConfig = new DirectorySearcher(deConfig);
dsConfig.Filter = "(objectClass=nTDSDSA)";
foreach (SearchResult srDomains in dsConfig.FindAll())
{
DirectoryEntry deDomain = srDomains.GetDirectoryEntry();
if (deDomain != null)
{
string dnsHostName =
deDomain.Parent.Properties["DNSHostName"].Value.ToString();
// Get all the users for that domain
DirectoryEntry deUsers =
new DirectoryEntry("LDAP://" + dnsHostName + "/" + defaultNamingContext);
DirectorySearcher dsUsers = new DirectorySearcher(deUsers);
dsUsers.Filter = "(&(objectCategory=person)(objectClass=user))";
foreach (SearchResult srUsers in dsUsers.FindAll())
{
DirectoryEntry deUser = srUsers.GetDirectoryEntry();
if (deUser != null)
{
// Get the distinguishedName and lastLogon for each user
// Save the most recent logon for each user in a Dictionary object
string distinguishedName = deUser.Properties["distinguishedName"].Value.ToString();
Int64 lastLogonThisServer = new Int64();
if (deUser.Properties["lastLogon"].Value != null)
{
IADsLargeInteger lgInt =
(IADsLargeInteger)deUser.Properties["lastLogon"].Value;
lastLogonThisServer = ((long)lgInt.HighPart << 32) + lgInt.LowPart;
}

// Save the most recent logon for each user in a Dictionary object
if (lastLogons.ContainsKey(distinguishedName))
{
if (lastLogons[distinguishedName] < lastLogonThisServer)
{
lastLogons[distinguishedName] = lastLogonThisServer;
}
}
else
{
lastLogons.Add(distinguishedName, lastLogonThisServer);
}
string readableLastLogon = DateTime.FromFileTime(lastLogonThisServer).ToString();
Console.WriteLine("User: " + distinguishedName + "Last logon: " +readableLastLogon);
}
}
Console.ReadLine();
}
}

}
}
}

[/code]

Try the code & if you are stuck somewhere, do let me through the comments. I am working on a WPF C# project for a simple Active Directory Reporter / Asset Management System using WMI. Stay tuned & I will soon post the entire solution here :)

regards,

rajesh