WebSVN – Code-Repo – Diff – /SWAT Office App/trunk/SWAT Office App/Manage_User_Accounts.cs

 using System.Text;
 using System.Diagnostics;
 using System.IO;
 using System.Windows.Forms;
 using System.Security.AccessControl;
+using System.DirectoryServices.AccountManagement;
 namespace SWAT_Office_App
+{
     class ManageUserAccounts
+    {
+        private static string studentGroupName = "StudentAccounts";
-        public static List<string> UserAccountsList = new List<string>();
+        public static List<UserPrincipal> UserAccountsList = new List<UserPrincipal>();
         public static bool AddUser(string username, string password)
+        {
             try
+            {
+                PrincipalContext localSystem = new PrincipalContext(ContextType.Machine);
-                // Returns true if user was added successfully
+                // Creates a new user after checking if it already exists or not
-                foreach (string user in UserAccountsList)
+                UserPrincipal newUser = new UserPrincipal(localSystem);
+                newUser.Name = username;
+                PrincipalSearcher searcher = new PrincipalSearcher(newUser);
+                Principal result = searcher.FindOne();
+                if (result == null)
+                {
+                    newUser = new UserPrincipal(localSystem);
-                    if (username.ToLower() == user.ToLower())
+                    newUser.Name = username;
+                    newUser.SetPassword(password);
+                    newUser.PasswordNeverExpires = true;
+                    newUser.PasswordNotRequired = false;
+                    newUser.UserCannotChangePassword = true;
+                    newUser.Description = DateTime.Now.ToShortDateString();
+                    newUser.Save();
+                    // Creates a new group after checking if it already exists or not
+                    GroupPrincipal studentGroup = new GroupPrincipal(localSystem);
+                    studentGroup.Name = studentGroupName;
+                    searcher = new PrincipalSearcher(studentGroup);
+                    result = searcher.FindOne();
+                    // Creates group if it doesnt already exist
+                    if (result == null)
+                    {
+                        studentGroup = new GroupPrincipal(localSystem, studentGroupName);
+                        studentGroup.Name = studentGroupName;
+                        studentGroup.IsSecurityGroup = true;
+                        studentGroup.Members.Add(newUser);
+                        studentGroup.Save();
+                    }
+                    // Otherwise add to existing group
+                    else
+                    {
+                        studentGroup = (GroupPrincipal)result;
-                        MessageBox.Show("Username already exists", "Error");
+                        studentGroup.Members.Add(newUser);
-                        return false;
+                        studentGroup.Save();
+                    }
+                    DebugText.appendText("Account " + username + " has been created");
+                    return true;
+                }
+                else
+                {
+                    // local account already exists, return with error
+                    return false;
+                }
-                Process netProcess = new Process();
-                netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
-                netProcess.StartInfo.FileName = "net.exe";
-                netProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
-                netProcess.StartInfo.CreateNoWindow = true;
-                // Arguments for user account creation. Run NET HELP USER from the command prompt for more info.
-                netProcess.StartInfo.Arguments = "USER \"" + username + "\" \"" + password +
-                    "\" /ADD /ACTIVE:YES /PASSWORDCHG:NO /PASSWORDREQ:YES /EXPIRES:NEVER /COMMENT:" + DateTime.Now.ToShortDateString();
-                netProcess.Start();
-                netProcess.WaitForExit();
-                netProcess.Close();
-                return true;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
                 return false;
+            }
+        }
-        public static void DeleteUser(List<string> usernames)
+        public static bool DeleteUser(List<string> usernames)
+        {
             try
+            {
+                bool Success = true;
+                PrincipalContext localSystem = new PrincipalContext(ContextType.Machine);
+                // Iterates through and deletes selected users
                 foreach (string user in usernames)
+                {
+                    bool deleteShare = false;
                     if (Directory.Exists(Settings_Form.sharedFolderLocation + @"\" + user))
+                    {
                         // Prompts for deletion of folder as well as the user account
                         DialogResult result = MessageBox.Show("A shared folder exists for the user " + user + "!" +
                             "\nDelete the folder and all data within the folder?",
                            "Warning!", MessageBoxButtons.YesNo);
                         if (result == DialogResult.Yes)
-                        {
-                            Process netProcess = new Process();
-                            netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
-                            netProcess.StartInfo.FileName = "net.exe";
-                            netProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
-                            netProcess.StartInfo.CreateNoWindow = true;
-                            // Arguments for user account deletion. Run NET HELP USER from the command prompt for more info.
-                            netProcess.StartInfo.Arguments = "USER \"" + user + "\" /DELETE";
-                            netProcess.Start();
-                            netProcess.WaitForExit();
-                            netProcess.Close();
-                            DeleteShareFolder(user);
+                            deleteShare = true;
-                        }
-                    }
-                    // If no folders exist for the user, account is deleted without prompting
-                    else
-                    {
-                        Process netProcess = new Process();
-                        netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
-                        netProcess.StartInfo.FileName = "net.exe";
-                        netProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
-                        netProcess.StartInfo.CreateNoWindow = true;
-                        // Arguments for user account deletion. Run NET HELP USER from the command prompt for more info.
-                        netProcess.StartInfo.Arguments = "USER \"" + user + "\" /DELETE";
-                        netProcess.Start();
-                        netProcess.WaitForExit();
-                        netProcess.Close();
+                    }
+                    // Finds and deletes user and share
+                    UserPrincipal toDelete = new UserPrincipal(localSystem);
+                    toDelete.Name = user;
+                    PrincipalSearcher searcher = new PrincipalSearcher(toDelete);
+                    Principal found = searcher.FindOne();
+                    toDelete = (UserPrincipal)found;
+                    toDelete.Delete();
+                    DebugText.appendText("Account " + user + " has been deleted");
+                    // Deletes share if selected
+                    if (deleteShare)
+                        if (!DeleteShareFolder(user))
+                            Success = false;
+                }
+                return Success;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return false;
+            }
+        }
-        public static void QueryUserAccounts()
+        public static bool QueryUserAccounts()
+        {
             // Function that reads the user accounts on the local computer to UserAccountsList
             UserAccountsList.Clear();
             try
+            {
-                Process netProcess = new Process();
+                PrincipalContext localSystem = new PrincipalContext(ContextType.Machine);
-                netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
-                netProcess.StartInfo.FileName = "net.exe";
-                netProcess.StartInfo.UseShellExecute = false;
+                UserPrincipal user = new UserPrincipal(localSystem);
-                netProcess.StartInfo.RedirectStandardOutput = true;
-                netProcess.StartInfo.CreateNoWindow = true;
-                netProcess.StartInfo.Arguments = "USER";
-                netProcess.Start();
+                user.Name = "*";
-                string netOutput = netProcess.StandardOutput.ReadToEnd();
-                // Splits the output into seperate strings for further processing
-                string[] tempSplit = netOutput.Split(new string[] { "  ", "\r", "\n" }, StringSplitOptions.RemoveEmptyEntries);
-                // Roundabout way of trimming each string in the array
-                string[] netOutputSplit = new string[tempSplit.Length];
+                PrincipalSearcher searcher = new PrincipalSearcher(user);
-                for (int i = 0; i < tempSplit.Length; i++)
-                    netOutputSplit[i] = tempSplit[i].Trim();
-                // Imports the string array into the UserAccountsList List
+                PrincipalSearchResult<Principal> result = searcher.FindAll();
-                UserAccountsList.AddRange(netOutputSplit);
-                // Removes the header and footer from the List
-                UserAccountsList.RemoveRange(0, 2);
-                UserAccountsList.RemoveRange(UserAccountsList.Count() - 1, 1);
-                // Removes any additional empty entries
+                foreach (Principal p in result)
-                UserAccountsList.RemoveAll(IsStringBlank);
+                    UserAccountsList.Add((UserPrincipal)p);
-                netProcess.WaitForExit();
-                netProcess.Close();
-            }
-            catch (Exception e)
-            {
-                MessageBox.Show(e.ToString(), "Error");
-            }
-        }
-        public static string [] QueryUserAccountExtraInformation(string username)
-        {
-            // Returns a string array with password requirement and date of account creation
-            string[] stringArray = { "", "" };
-            try
-            {
-                Process netProcess = new Process();
-                netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
-                netProcess.StartInfo.FileName = "net.exe";
-                netProcess.StartInfo.UseShellExecute = false;
-                netProcess.StartInfo.RedirectStandardOutput = true;
-                netProcess.StartInfo.CreateNoWindow = true;
-                netProcess.StartInfo.Arguments = "USER " + "\"" + username + "\"";
-                netProcess.Start();
+                return true;
-                string netOutput = netProcess.StandardOutput.ReadToEnd();
-                // Splits the output into seperate strings for further processing
-                string[] tempSplit = netOutput.Split(new string[] { "  ", "\r", "\n" }, StringSplitOptions.RemoveEmptyEntries);
-                // Roundabout way of trimming each string in the array
-                string[] netOutputSplit = new string[tempSplit.Length];
-                for (int i = 0; i < tempSplit.Length; i++)
-                    netOutputSplit[i] = tempSplit[i].Trim();
-                stringArray[0] = netOutputSplit[20];
-                stringArray[1] = netOutputSplit[4];
-                netProcess.WaitForExit();
-                netProcess.Close();
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return false;
+            }
-            return stringArray;
+        }
         public static bool QueryUserSharedFolderExist(string username)
+        {
             return Directory.Exists(Settings_Form.sharedFolderLocation + @"\" + username);
+        }
-        public static void CreateShareFolder(string username)
+        public static bool CreateShareFolder(string username)
+        {
             try
+            {
                 // Creates the directory with only the specific NTFS and share permissions for the user.
                 DirectorySecurity dSecurity = new DirectorySecurity();
+                // Adds NTFS permissions for system accounts
                 foreach (string systemUser in Settings_Form.systemAccounts)
+                {
                     dSecurity.AddAccessRule(new FileSystemAccessRule("\\" + systemUser, FileSystemRights.FullControl, InheritanceFlags.ContainerInherit, PropagationFlags.None, AccessControlType.Allow));
                     dSecurity.AddAccessRule(new FileSystemAccessRule("\\" + systemUser, FileSystemRights.FullControl, InheritanceFlags.ObjectInherit, PropagationFlags.None, AccessControlType.Allow));
+                }
-                //dSecurity.AddAccessRule(new FileSystemAccessRule("\\Administrator", FileSystemRights.FullControl, AccessControlType.Allow));
-                //dSecurity.AddAccessRule(new FileSystemAccessRule("\\SWAT", FileSystemRights.FullControl, AccessControlType.Allow));
+                // Adds NTFS permissions for the user
-                //dSecurity.AddAccessRule(new FileSystemAccessRule("\\Administrators", FileSystemRights.FullControl, AccessControlType.Allow));
                 dSecurity.AddAccessRule(new FileSystemAccessRule("\\" + username, FileSystemRights.FullControl, InheritanceFlags.ContainerInherit, PropagationFlags.None, AccessControlType.Allow));
                 dSecurity.AddAccessRule(new FileSystemAccessRule("\\" + username, FileSystemRights.FullControl, InheritanceFlags.ObjectInherit, PropagationFlags.None, AccessControlType.Allow));
                 Directory.CreateDirectory(Settings_Form.sharedFolderLocation + @"\" + username, dSecurity);
+                DebugText.appendText("Shared folder for " + username + " has been created");
-                SetSharePermissions(username);
+                return SetSharePermissions(username);
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return false;
+            }
+        }
-        public static void DeleteShareFolder(string username)
+        public static bool DeleteShareFolder(string username)
+        {
             try
+            {
+                bool Success = true;
                 // Removes the share BEFORE deleting the folder. Otherwise share will error on remove.
-                RemoveSharePermissions(username);
+                if (!RemoveSharePermissions(username))
+                    Success = false;
                 Directory.Delete(Settings_Form.sharedFolderLocation + @"\" + username, true);
+                DebugText.appendText("Shared folder for " + username + " has been deleted");
+                return Success;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return false;
+            }
+        }
-        public static void ToggleShare(string username)
+        public static bool ToggleShare(string username)
+        {
             try
+            {
+                // Checks if a share already exists for the user
                 if (Directory.Exists(Settings_Form.sharedFolderLocation + @"\" + username))
+                {
                     DialogResult result = MessageBox.Show("A shared folder exists for the user " + username + "!" +
                                 "\nDelete the folder and all data within the folder?",
                                "Warning!", MessageBoxButtons.YesNo);
                     if (result == DialogResult.Yes)
-                    {
-                        DeleteShareFolder(username);
+                        return DeleteShareFolder(username);
-                    }
+                }
+                // Otherwise creates the share for the user
                 else
-                {
-                    CreateShareFolder(username);
+                    return CreateShareFolder(username);
-                }
+                return true;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return false;
+            }
+        }
         public static long GetShareSize(string username)
+        {
             DirectoryInfo dir = new DirectoryInfo(Settings_Form.sharedFolderLocation + @"\" + username);
             long size = GetDirSize(dir);
             return size;
+        }
-        public static void ChangeUserPassword(string username, string password)
+        private static long GetDirSize(DirectoryInfo input)
+        {
             try
+            {
+                if (input.Exists)
+                {
+                    long size = 0;
-                Process netProcess = new Process();
+                    FileInfo[] files = input.GetFiles();
+                    foreach (FileInfo file in files)
+                    {
+                        size += file.Length;
+                    }
-                netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
+                    DirectoryInfo[] dirs = input.GetDirectories();
-                netProcess.StartInfo.FileName = "net.exe";
+                    foreach (DirectoryInfo dir in dirs)
+                    {
+                        size += GetDirSize(dir);
+                    }
+                    return size;
+                }
+                else
+                    return 0;
+            }
+            catch (Exception e)
+            {
-                netProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
+                //MessageBox.Show(e.ToString(), "Error");
-                netProcess.StartInfo.CreateNoWindow = true;
+                DebugText.appendText(e.ToString());
-                // Arguments for changing user password. Run NET HELP USER from the command prompt for more info.
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return 0;
+            }
+        }
-                netProcess.StartInfo.Arguments = "USER \"" + username + "\" \"" + password + "\"";
+        public static bool ChangeUserPassword(string username, string password)
+        {
+            try
+            {
+                // Queries for the specified user password
+                PrincipalContext localSystem = new PrincipalContext(ContextType.Machine);
+                UserPrincipal user = new UserPrincipal(localSystem);
-                netProcess.Start();
+                user.Name = username;
+                PrincipalSearcher searcher = new PrincipalSearcher(user);
+                Principal result = searcher.FindOne();
+                user = (UserPrincipal)result;
-                netProcess.WaitForExit();
+                user.SetPassword(password);
-                netProcess.Close();
+                user.Save();
+                DebugText.appendText("Password for " + username + " has been changed");
+                return true;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return false;
+            }
+        }
         public static bool SessionsOpen()
+        {
-            bool sessionsOpen = true;
             try
+            {
                 Process netProcess = new Process();
                 netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
                 netProcess.StartInfo.FileName = "net.exe";
                 string[] tempSplit = netOutput.Split(new string[] { "  ", "\r", "\n" }, StringSplitOptions.RemoveEmptyEntries);
                 netProcess.WaitForExit();
                 netProcess.Close();
                 if (tempSplit[0] == "There are no entries in the list.")
-                    sessionsOpen = false;
-            }
-            catch (Exception e)
-            {
-                MessageBox.Show(e.ToString(), "Error");
-            }
-            return sessionsOpen;
-        }
-        private static long GetDirSize(DirectoryInfo entry)
-        {
-            try
-            {
-                if (entry.Exists)
-                {
-                    long size = 0;
-                    FileInfo[] files = entry.GetFiles();
-                    foreach (FileInfo file in files)
-                    {
-                        size += file.Length;
-                    }
-                    DirectoryInfo[] dirs = entry.GetDirectories();
-                    foreach (DirectoryInfo dir in dirs)
-                    {
-                        size += GetDirSize(dir);
-                    }
-                    return size;
+                    return false;
-                }
                 else
-                    return 0;
+                    return true;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
-                return 0;
+                return true;
+            }
+        }
-        private static void SetSharePermissions(string username)
+        private static bool SetSharePermissions(string username)
+        {
             string combinationString = "";
             foreach (string systemUser in Settings_Form.systemAccounts)
+            {
                 combinationString = combinationString.Insert(combinationString.Length, " /GRANT:\"" + systemUser + "\",FULL");
                 netProcess.StartInfo.CreateNoWindow = true;
                 netProcess.StartInfo.Arguments = "SHARE \"" + username + "\"=\"" + Settings_Form.sharedFolderLocation + "\\" + username + "\" " + combinationString;
                 netProcess.Start();
                 netProcess.WaitForExit();
                 netProcess.Close();
+                DebugText.appendText("Share permissions for " + username + " has been set");
+                return true;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
+                DebugText.appendText(e.ToString());
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
+                return false;
+            }
+        }
-        private static void RemoveSharePermissions(string username)
+        private static bool RemoveSharePermissions(string username)
+        {
             try
+            {
                 Process netProcess = new Process();
                 netProcess.StartInfo.WorkingDirectory = System.Environment.SystemDirectory;
                 netProcess.StartInfo.CreateNoWindow = true;
                 netProcess.StartInfo.Arguments = "SHARE \"" + username + "\" /Delete";
                 netProcess.Start();
                 netProcess.WaitForExit();
                 netProcess.Close();
+                DebugText.appendText("Share permissions for " + username + " has been removed");
+                return true;
+            }
             catch (Exception e)
+            {
-                MessageBox.Show(e.ToString(), "Error");
+                //MessageBox.Show(e.ToString(), "Error");
-            }
-        }
-        private static bool IsStringBlank(string s)
+                DebugText.appendText(e.ToString());
-        {
-            if (s == "")
-                return true;
+                MessageBox.Show("An error has occured. Please notify a supervisor to debug.", "Error");
-            else
                 return false;
+            }
+        }
+    }
+}

Subversion Repositories Code-Repo

(root)/SWAT Office App/trunk/SWAT Office App/Manage_User_Accounts.cs @ 53 – Rev 50 → 53