使用C#实现Windows组和用户管理的示例代码

1、windowsaccounthelper类实现

using system;
using system.collections.generic;
using system.directoryservices.accountmanagement;
using system.linq;
 
public class windowsaccounthelper
{
    public static string lasterrormsg { get; private set; }
 
    public static list<string> getgroups()
    {
        var groups = new list<string>();
        try
        {
            var context = new principalcontext(contexttype.machine);
            var querygroup = new groupprincipal(context);
            var searcher = new principalsearcher(querygroup);
            searcher.findall().tolist().foreach(t => groups.add(t.name));
        }
        catch (exception)
        {
            groups.clear();
        }
 
        return groups;
    }
 
    public static list<string> getgroupusers(string groupname)
    {
        var group = getgroup(groupname);
        return getgroupusers(group);
    }
 
    public static list<string> getgroupusers(groupprincipal group)
    {
        var users = new list<string>();
         
        if (group == null)
        {
            return users;
        }
 
        group.getmembers().tolist().foreach(t => users.add(t.name));
        return users;
    }
 
    public static groupprincipal getgroup(string groupname)
    {
        groupprincipal group = null;
        try
        {
            var context = new principalcontext(contexttype.machine);
            var querygroup = new groupprincipal(context);
            var searcher = new principalsearcher(querygroup);
            foreach (var principal in searcher.findall())
            {
                var groupprincipal = (groupprincipal)principal;
                if (groupprincipal != null && groupprincipal.name.equals(groupname))
                {
                    group = groupprincipal;
                    break;
                }
            }
        }
        catch (exception)
        {
            // ignored
        }
 
        return group;
    }
 
    public static groupprincipal creategroup(string groupname, string description, bool issecuritygroup)
    {
        groupprincipal group;
        try
        {
            group = getgroup(groupname);
            if (group == null)
            {
                var context = new principalcontext(contexttype.machine);
                group = new groupprincipal(context)
                {
                    name = groupname,
                    description = description,
                    issecuritygroup = issecuritygroup,
                    groupscope = groupscope.local
                };
                group.save();
            }
        }
        catch (exception e)
        {
            lasterrormsg = e.message;
            group = null;
        }
 
        return group;
    }
 
    public static bool deletegroup(string groupname)
    {
        var group = getgroup(groupname);
        if (group == null)
        {
            return true;
        }
 
        var ret = true;
        try
        {
            group.delete();
        }
        catch (exception)
        {
            ret = false;
        }
 
        return ret;
    }
 
    public static bool createwindowsaccount(string username, string password,
        string displayname, string description, bool cannotchangepassword,
        bool passwordneverexpires, string groupname)
    {
        bool ret;
        try
        {
            var context = new principalcontext(contexttype.machine);
            var group = groupprincipal.findbyidentity(context, groupname);
            if (group == null)
            {
                return false;
            }
 
            ret = createwindowsaccount(username, password, displayname,
                description, cannotchangepassword, passwordneverexpires, group);
        }
        catch (exception)
        {
            ret = false;
        }
 
        return ret;
    }
 
    public static bool createwindowsaccount(string username, string password,
        string displayname, string description, bool cannotchangepassword,
        bool passwordneverexpires, groupprincipal group)
    {
        bool ret;
        try
        {
            if (group == null)
            {
                return false;
            }
 
            var context = new principalcontext(contexttype.machine);
            var user = userprincipal.findbyidentity(context, username)
                       ?? new userprincipal(context);
            user.setpassword(password);
            user.displayname = displayname;
            user.name = username;
            user.description = description;
            user.usercannotchangepassword = cannotchangepassword;
            user.passwordneverexpires = passwordneverexpires;
            user.save();
 
            group.members.add(user);
            group.save();
            ret = true;
        }
        catch (exception)
        {
            ret = false;
        }
 
        return ret;
    }
 
    public static bool deletewindowsaccount(list<string> usernamelist)
    {
        var ret = true;
        try
        {
            foreach (var username in usernamelist)
            {
                var context = new principalcontext(contexttype.machine);
                var user = userprincipal.findbyidentity(context, username);
                user?.delete();
            }
        }
        catch (exception)
        {
            ret = false;
        }
 
        return ret;
    }
 
    public static bool changeusergroup(string username, string groupname)
    {
        bool ret;
        try
        {
            var context = new principalcontext(contexttype.machine);
            var group = groupprincipal.findbyidentity(context, groupname);
            if (group == null)
            {
                return false;
            }
 
            ret = changeusergroup(username, group);
        }
        catch (exception)
        {
            ret = false;
        }
 
        return ret;
    }
 
    public static bool changeusergroup(string username, groupprincipal group)
    {
        bool ret;
        try
        {
            if (group == null)
            {
                return false;
            }
 
            var context = new principalcontext(contexttype.machine);
            var user = userprincipal.findbyidentity(context, username);
            if (user == null)
            {
                return false;
            }
 
            if (!group.members.contains(user))
            {
                group.members.add(user);
                group.save();
            }
 
            ret = true;
        }
        catch (exception)
        {
            ret = false;
        }
 
        return ret;
    }
 
    public static int updategroupusers(string groupname, list<string> usernames, string password = "")
    {
        var group = creategroup(groupname, string.empty, false);
        if (group == null)
        {
            return 0;
        }
 
        var usernamelist = new list<string>();
        usernamelist.addrange(usernames);
 
        var addedusers = new list<string>();
        int groupusercount;
 
        try
        {
            foreach (var principal in group.getmembers())
            {
                var user = (userprincipal)principal;
                if (user == null)
                {
                    continue;
                }
 
                if (usernamelist.contains(user.name))
                {
                    //已有用户
                    addedusers.add(user.name);
                }
                else
                {
                    user.delete();
                }
            }
 
            //已有用户数
            groupusercount = addedusers.count;
 
            //剩余的即为需要添加的用户集合
            foreach (var username in addedusers)
            {
                usernamelist.remove(username);
            }
 
            //创建用户
            foreach (var username in usernamelist)
            {
                if (createwindowsaccount(username, password,
                    username, string.empty,
                    false, false, group))
                {
                    groupusercount++;
                }
            }
        }
        catch (unauthorizedaccessexception)
        {
            groupusercount = 0;
        }
 
        return groupusercount;
    }
}

2、使用示例

private bool creategroupusers(string groupname, list<string> windowsuserlist,
    string password, int usercount)
{
    var group = windowsaccounthelper.creategroup(groupname, string.empty, true);
    if (group == null)
    {
        return false;
    }
 
    var usernames = windowsaccounthelper.getgroupusers(group);
    foreach (var username in windowsuserlist)
    {
        if (!usernames.contains(username))
        {
            if (!windowsaccounthelper.createwindowsaccount(username, password,
                username, string.empty,
                false, false, group))
            {
                return false;
            }
        }
    }
 
    return true;
}

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