<#
    .Synopsis
        将用户（.csv）自动导入至AD中
    .Description
        利用PowerShell自动将用户导入至AD中，需要在参数配置中指定AdDomain,AdContainer
        如果要用默认的凭据，设置UseLoggedInUsersCredentials=True，
        否则在参数配置中配置Administrator账号和密码。
    .Parameter FullPathOfCsvFile
        用户文件所在位置
    .Parameter UseLoggedInUsersCredentials
        设置是否使用当前已经登录的凭据
    .Outputs
        用户 Chris 创建成功
        用户 Mark  创建成功
        用户 Chen  创建成功
        用户 Jack  创建成功
        用户 Queen 创建成功
        用户 King  创建成功
    .Example
         .\CreateUsersFromCsv1.ps1 -FullPathOfCsvFile "C:\Fuck\temp\Users.csv" -UseLoggedInUsersCredentials $false

#>
param([string] $FullPathOfCsvFile,[bool] $UseLoggedInUsersCredentials)

########################################################参数配置########################################################################################################################################
$AdDomain="Kingdom"                               #提供 Domain Name.Example=> $AdDomain="Kingdom"
$AdUser="Administrator"                           #当$UseLoggedInUsersCredentials=False时，提供 AD Administrator Name.Example=>$AdUser="Administrator"
$AdUserPwd="p@ssw0rd!!!"                             #当$UseLoggedInUsersCredentials=False时，提供 Administrator的密码.Example=>$AduserPwd="p@ssw0rd!!!"
$AdContainer="OU=Staff,DC=Kingdom,DC=com"         #存储区上，用作上下文的根容器。所有查询都在此根下执行，并且所有插入都在此容器中执行.Example=>"OU=Staff,DC=Kingdom,DC=com"，请确保它是正确并真实存在
########################################################参数配置#########################################################################################################################################

if(!(Get-PSSnapin|Where-Object{$_.Name -eq "Microsoft.SharePoint.PowerShell"}))
{
    Add-PSSnapin "Microsoft.SharePoint.PowerShell"
}

function Get-ContextPrincipal([string]$ctxDomain,[string]$ctxContainer)
{
        Add-Type -AssemblyName System.DirectoryServices.AccountManagement
        $ct=[System.DirectoryServices.AccountManagement.ContextType]::Domain
        $pc=New-Object System.DirectoryServices.AccountManagement.PrincipalContext($ct,$ctxDomain,$ctxContainer)
        return $pc
    }

function Get-Principal([string]$userName,[string]$userPassword,[string]$ctxDomain,[string] $ctxContainer)
{
        Add-Type -AssemblyName System.DirectoryServices.AccountManagement
        $ct=[System.DirectoryServices.AccountManagement.ContextType]::Domain
        $pc=New-Object System.DirectoryServices.AccountManagement.PrincipalContext($ct,$ctxDomain,$ctxContainer,$userName,$userPassword)
        return $pc
    }

function IsUserExist([System.DirectoryServices.AccountManagement.PrincipalContext] $ctx,[string] $userName)
{
        $curUser=[System.DirectoryServices.AccountManagement.UserPrincipal]::FindByIdentity($ctx,$userName)
        return $curUser -ne $null
    }

function IsNullOrEmpty($str)
{
    if ($str) 
    { 
        return $false
    }
    else
    {
        return $true
    }
}

if([System.IO.File]::Exists($FullPathOfCsvFile) -eq $true)
{
     if(IsNullOrEmpty($AdDomain)){
            Write-Host Domain Name不能为空
            return
     }
     if(IsNullOrEmpty($AdContainer)){
            Write-Host AD Container不能为空
            return
     }
    if($UseLoggedInUsersCredentials)
    {
        $CurrentContext=Get-ContextPrincipal -ctxDomain $AdDomain -ctxContainer $AdContainer
    }
    else
    {
        [bool] $DataValid=$true
        if(IsNullOrEmpty($AdUser)){
            Write-Host AD Admin Name不能为空
            $DataValid=$false
        }
        if(IsNullOrEmpty($AdUserPwd)){
            Write-Host AD Admin 密码不能为空
            $DataValid=$false
        }
        
        if($DataValid)
        {
          $CurrentContext=Get-Principal -userName $AdUser -userPassword $AdUserPwd -ctxDomain $AdDomain -ctxContainer $AdContainer
        }
        else
        {
            Write-Host 传入参数不能为空，请修改。或者使用已登录的用户的凭据，请设置UserLoggedInUsersCredentials为True。详情请 Get-Help .\CreateUsersFromCsv1.ps1查看
            return;
        }
    }

    Import-Csv $FullPathOfCsvFile|ForEach-Object{
        if(IsUserExist -ctx $CurrentContext -userName $_.LogIn)
        {
            Write-Host 用户 $_.LogIn 已经存在
        }
        else
        {
            $newUser=New-Object -TypeName System.DirectoryServices.AccountManagement.UserPrincipal($CurrentContext,$_.LogIn,$_.Password,$_.PasswordNeverExpires)
            $newUser.UserPrincipalName=$_.LogIn
            $newUser.GivenName=$_.FirstName
            $newUser.DisplayName=$_.FirstName+" "+$_.LastName
            $newUser.Name=$_.FirstName+" "+$_.LastName
            $newUser.EmailAddress=$_.Email
            $newUser.Surname=$_.LastName
            $newUser.PasswordNeverExpires=$_.PasswordNeverExpires
            $newUser.Save()
            Write-Host 用户 $_.LogIn 创建成功
        }
    }
       Write-Host 命令执行结束
}
else
{
    Write-Host 无效的文件路径
    Write-Host 请入有效的文件路径
}