ELM-ADTools.psm1

Function Export-Users {

    Param(
        [int]$Days
    ) # end param


    # Get path friendly date (dd-mm-yy)
    $Today = Get-Date -UFormat %d-%m-%y

    # Get ALL users in domain
    $AllUsers = Get-ADUser -filter * -Properties *

    # Filter uses only if Days variable has been assigned
    if ($Days) {

        # Filter to those logged in within last 90 days
        $AllUsers = $AllUsers | Where-Object  lastlogondate -gt ((Get-Date).AddDays(-$Days))
        }

    # Output to a CSV file with firstname, lastname, username, and also OU they were in
    $AllUsers |
    Select-Object givenname, surname, samaccountname, distinguishedname |
    ConvertTo-Csv -NoTypeInformation |
    Out-File -FilePath "$Home\Desktop\User_Export-$Today.csv"

}
function Get-InactiveAccounts {
    
    [cmdletbinding(SupportsShouldProcess=$True)]

    Param(
        [int] $DaysInactive = 30,
        [Parameter(Mandatory)]  
        [ValidateSet('Users','Computers')]
        $Object,
        [switch]
        $Disable
        )

    $domain = (Get-ADDomain).DistinguishedName
    $oucheckname = "_DISABLED"
    $oucheck = [adsi]::Exists("LDAP://OU=$oucheckname,$domain")

    if ($oucheck -eq $false) {
        New-ADOrganizationalUnit -Name _DISABLED
    }

    $DisabledOU = (Get-ADOrganizationalUnit -Filter 'Name -Like "*_DISABLED*"').DistinguishedName

    if ($Object -eq 'Users') {
        
        $InactiveObjects = Search-ADAccount -UsersOnly -AccountInactive -TimeSpan "30.00:00:00" |
        Where-Object { ($_.Enabled -eq $true) -and ($_.lastlogondate -ne $null) -and ($_.name -notlike "*admin*")}
        $InactiveObjects | Sort-Object LastLogonDate | Select-Object Name,LastLogonDate

        if ($Disable) {

            foreach ($Item in $InactiveObjects) {
            
                Set-ADUser -Identity $Item.DistinguishedName -Description "Account Disabled on $(get-date -UFormat %d/%m/%y)" -Enabled $false
                Move-ADObject -Identity $Item.DistinguishedName -TargetPath $DisabledOU
                Write-Verbose "Successfully disabled $($Item.Name)"

            }

        }

    }


    if ($Object -eq 'Computers') {
        
        $InactiveObjects = Search-ADAccount -ComputersOnly -AccountInactive -TimeSpan "$DaysInactive.00:00:00"  |
        Where-Object {$_.Enabled -eq $true}
        $InactiveObjects | Sort-Object LastLogonDate | Select-Object Name,LastLogonDate

        if ($Disable) {

            foreach ($Item in $InactiveObjects) {
            
                Set-ADComputer -Identity $Item.DistinguishedName -Description "Computer Disabled on $(get-date -UFormat %d/%m/%y)" -Enabled $false
                Move-ADObject -Identity $Item.DistinguishedName -TargetPath $DisabledOU
                Write-Verbose "Successfully disabled $($Item.Name)"
                

            }

        }

    }


}
function Get-OrphanedFolders {


    [cmdletbinding()]    
    param(
        [Parameter(Mandatory=$true)]
        [string]$ProfileDir,
        [Parameter(Mandatory=$true)]
        [string]$HomeDir
    )


    $Date = Get-Date -UFormat %Y-%m-%d
    Install-WindowsFeature RSAT-AD-PowerShell

    ###########################
    ##### Home FOLDERS #####
    ###########################

    # create an array to put all folders in
    $AllHomeFolders = @()

    # scan through subfolders and add them to the array
    $AllHomeFolders += (Get-ChildItem $HomeDir -Exclude Archive | Get-ChildItem)

    # create an array to put orphaned folders in
    $OrphanedHomeFolders = @()

    # test each folder name against active directory samaccountnames and if they dont exist place them in the orphaned folders array
    Foreach ($HomeFolder in $AllHomeFolders) {

        try {
            Write-Verbose "Looking for $($HomeFolder.Name)..."
            Get-ADUser -Identity $HomeFolder.Name | out-null
            }
        catch {
            Write-Verbose "*** Could not find $($HomeFolder.Name) ***"
            $OrphanedHomeFolders += $HomeFolder
            }

    }

    # display the orphaned folders that were found
    Write-Host "here are the current oprhaned Home folders"

    $OrphanedHomeFolders | Sort-Object lastaccesstime | Format-Table name,fullname,lastaccesstime

    # prompt user if they want to archive them
    $confirm = Read-Host "Would you like to move these to an archive folder (y/n)"

    # test for archive folder and create it if it does not exist
    if ($confirm -eq "y") {

        $HomeArchiveDir = "$HomeDir\Archive\$Date"

        if (!(Test-Path $HomeArchiveDir)) {

            New-Item $HomeArchiveDir -ItemType Directory

            }

    # move all orphaned folders to the archive folder
        $OrphanedHomeFolders | Move-Item -Destination $HomeArchiveDir -Force
        Write-Host "The folders have been successfully moved to $HomeArchiveDir" -ForegroundColor Green

    }

    ###########################
    ##### Profile FOLDERS #####
    ###########################

    # create an array to put all folders in
    $AllProfileFolders = @()

    # scan through subfolders and add them to the array
    $AllProfileFolders += (Get-ChildItem $ProfileDir -Exclude Archive | Get-ChildItem)

    # create an array to put orphaned folders in
    $OrphanedProfileFolders = @()

    # test each folder name against active directory samaccountnames and if they dont exist place them in the orphaned folders array
    Foreach ($ProfileFolder in $AllProfileFolders) {

        try {
            Write-Verbose "Looking for $($ProfileFolder.Name)..."
            Get-ADUser -Identity $ProfileFolder.Name.Replace(".V6","") | Out-Null
            }
        catch {
            Write-Verbose "*** Could not find $($ProfileFolder.Name) ***"
            $OrphanedProfileFolders += $ProfileFolder
            }

    }

    # display the orphaned folders that were found
    Write-Host "here are the current oprhaned Profile folders"

    $OrphanedProfileFolders | Sort-Object lastaccesstime | Format-Table name,fullname,lastaccesstime

    # prompt user if they want to archive them
    $confirm = Read-Host "Would you like to move these to an archive folder (y/n)"

    # test for archive folder and create it if it does not exist
    if ($confirm -eq "y") {

        $ProfileArchiveDir = "$ProfileDir\Archive\$Date"

        if (!(Test-Path $ProfileArchiveDir)) {

            New-Item $ProfileArchiveDir -ItemType Directory

            }

    # move all orphaned folders to the archive folder
        $OrphanedProfileFolders | Move-Item -Destination $ProfileArchiveDir -Force
        Write-Host "The folders have been successfully moved to $ProfileArchiveDir" -ForegroundColor Green

    }

}
Function Import-Users {

    <#
 
    .Synopsis
    Use this function to import users from a CSV file in to Active Directory
 
    .Description
    Users are imported in to an imported users OU, from there you can move them as you wish
 
 
    .Parameter CSV
    The path to a CSV file containing user data, CSV MUST have 3 columns, firstname, lastname & description
 
    .Parameter UsernameFormat
    Select the format you want for the usernames generated, currently johnd, john.d, jdoe, j.doe, john.doe are supported.
 
    .Parameter Usertype
    Select the type of user account, the function uses this to find the home directory (eg Home$\Staff) and also adds them to the corresponding security group
 
    .Parameter Homeshare
    Path to the Home$ share (eg \\DC01\Home$)
 
    .Parameter Profileshare
    Path to the Profile$ share (eg \\DC01\Profile$)
 
    .Parameter Password
    What password you want for the account, MUST comply with domain policy OR fine grained password policy.
 
    .Parameter RandomPassword
    Tells the function to use www.dinopass.com to generate random passwords for each account
 
    .Parameter Logpath
    What path to generate the log files, by default is current users desktop
 
 
    #>



    #Requires -RunAsAdministrator
    
    [cmdletbinding(SupportsShouldProcess=$True)]
    [CmdletBinding(DefaultParameterSetName='password')]
    Param(
        
        [string]
        [Parameter(Mandatory=$true)]
        $csv,
        
        [string]
        [Parameter(Mandatory=$true)]
        [ValidateSet('johnd','john.d','jdoe','j.doe','john.doe')]
        $UsernameFormat,
        
        [string]
        [Parameter(Mandatory=$true)]
        [ValidateSet('Staff','Office','Students')]
        $UserType,
        
        [string]
        [Parameter(Mandatory=$true)]
        $HomeShare,
        
        [string]
        [Parameter(Mandatory=$true)]
        $ProfileShare,
        
        [Parameter(ParameterSetName='password', Position=0)]
        $Password,
        
        [Switch]
        [Parameter(ParameterSetName='random', Position=0)]
        $RandomPassword,
        
        [string]
        $LogPath = "$env:USERPROFILE\Desktop\User Import Logs"
    )


    # Setup logging
    $Log = "$LogPath\$(Get-Date -UFormat %Y-%m-%d) Import Log.csv"
    $FailLog = "$LogPath\$(Get-Date -UFormat %Y-%m-%d) FAILED Import Log.csv"

    if (!(Test-Path $Log)) {

        New-Item $Log, $FailLog -Force
        Set-Content -Path $Log -Value '"Full Name","UserName","Description","Password"'
        Set-Content -Path $FailLog -Value '"Full Name","UserName"'
        
        }

    # Store the data from the CSV in the $Users variable
    $Users = Import-csv $csv

    # Defines what the CSV headers should be
    $CorrectHeaders = @(
        'firstname'
        'lastname'
        'description'
        )

    # Assigns the actual headers to a variable
    $ImportHeaders = (($Users[0].psobject.properties.name))

    # Counts the differencnes
    $HeaderDiffs = (Compare-Object $CorrectHeaders $ImportHeaders).count

    # Throws an error if the differences are not 0
    if ($HeaderDiffs -ne '0') {

        Throw "Check your CSV Headers! Should be 'firstname,lastname,description'"

    }

    # Set some Variables
    $Domain = (Get-ADDomain).name
    $FullDomain = (Get-ADDomain).dnsroot
    $DomainRoot = (Get-ADDomain).DistinguishedName
    $HomePath = "$HomeShare\$UserType"
    $ProfilePath = "$ProfileShare\$UserType"
    $bar = "*" * 125

    # Tests for an "Imported Users" OU at root of domain and if it does not exist then it creates it
    $ImportOU = "OU=Imported Users,$DomainRoot"

    try {
        Get-ADOrganizationalUnit -Identity $ImportOU | Out-Null
        } catch {
        New-ADOrganizationalUnit -Name "Imported Users" -Path $DomainRoot
        }

    # Check Home & Profile paths exist
    if (!(Test-Path $HomePath)) {
        Throw "Could not find $HomePath!"
    }
        
    if (!(Test-Path $ProfilePath)) {
        Throw "Could not find $ProfilePath!"
    }

    # Loop through each row containing user details in the CSV file

    foreach ($User in $Users) {

        # Read user data from each field in each row and assign the data to a variable as below
            
        $Firstname      = $User.firstname 
        $Lastname      = $User.lastname
        $FullName    = "$Firstname $Lastname"
        $Description = $User.description

        # Select username format

        if ($UsernameFormat -eq "johnd") {
            $Username = $Firstname + $Lastname.substring(0,1)
            
        }

        if ($UsernameFormat -eq "john.d") {
            $Username = $Firstname + "." + $Lastname.substring(0,1)
        }

        if ($UsernameFormat -eq "jdoe") {
            $Username = $Firstname.substring(0,1) + $Lastname
        }

        if ($UsernameFormat -eq "j.doe") {
            $Username = $Firstname.substring(0,1) + "." + $Lastname
        }

        if ($UsernameFormat -eq "john.doe") {
            $Username = $Firstname + "." + $Lastname
        }
        
        # change to lower case and remove - and ' and spaces

        $Username    = $Username.ToLower()
        $Username    = $Username.Replace('-','').replace("'",'').replace(" ",'')

        # Generate a random password and make the first letter a capital

        if ($RandomPassword) {
            
            Write-Verbose "Generating random password..."
            $Password = (Get-Culture).TextInfo.ToTitleCase((Invoke-WebRequest "http://www.dinopass.com/password/simple" -Verbose:$False | Select-Object Content -ExpandProperty Content))

            }

        $PasswordSecure = $Password | ConvertTo-SecureString -AsPlainText -Force


        # Create splat of user params
            
        $UserParams = @{
            SamAccountName = $Username
            UserPrincipalName  = "$Username@$FullDomain"
            Name = $FullName
            GivenName = $Firstname
            Surname = $Lastname
            Enabled = $True
            DisplayName = $FullName
            Path = $ImportOU
            ProfilePath = "$ProfilePath\$Username"
            HomeDrive = "H:"
            HomeDirectory = "$HomePath\$Username"
            Description = $Description
            AccountPassword = $PasswordSecure
            ChangePasswordAtLogon = $true
            }

        # Create an object to make reporting later easier
        
        $UserObject = [PSCustomObject]@{

            Name            = $Fullname
            UserName        = $Username
            Description     = $Description
            Password        = $Password

            }

        try {
            
            New-ADUser @UserParams
            Write-Verbose "Successfully created $FullName with username $Username and Password $Password"
            $UserObject | ConvertTo-Csv -NoTypeInformation | Select-Object -Skip 1 | Out-File -FilePath $Log -Append -encoding ASCII

            } catch {

            $_ | Out-File -FilePath $FailLog -Append -encoding ASCII
            $UserObject | Select-Object Name,Username | ConvertTo-Csv -NoTypeInformation | Select-Object -Skip 1 | Out-File -FilePath $FailLog -Append -encoding ASCII
            $bar | Out-File -FilePath $FailLog -Append -encoding ASCII
            Write-Verbose "Unable to create $FullName, moving on to next user..."
            continue
            
            }

        Write-Verbose "Creating home directory: $HomePath\$Username"
        # Create users home folder and give them full rights
        New-Item -Name $Username -Path $HomePath -ItemType Directory | Out-Null
            
        Write-Verbose "Setting access rights..."
        $Acl = Get-Acl "$HomePath\$Username"
        $Ar = New-Object  System.Security.AccessControl.FileSystemAccessRule("$Domain\$Username","FullControl","ContainerInherit,ObjectInherit","None","Allow")
        $Acl.SetAccessRule($Ar)
        Set-Acl "$HomePath\$Username" $Acl

        Write-Verbose "Assigning to groups..."
        # Add them to AD groups
        Add-ADGroupMember -Identity $UserType -Members $Username

        # Set password and enable account after group membership (fine grained password policy)
        Write-Verbose "Setting password..."
        
        Set-ADAccountPassword -Identity $Username -Reset -NewPassword $PasswordSecure
        Set-ADUser -Identity $Username -Enabled $true
        
        if ($UserType -eq "Students") {

            Set-ADUser -Identity $Username -CannotChangePassword $true -ChangePasswordAtLogon $false -PasswordNeverExpires $true
            
            } else {

            Set-ADUser -Identity $Username -CannotChangePassword $false -ChangePasswordAtLogon $true

            }

        Write-Verbose $bar

        }

}
function List-Users {

    param (
        [Parameter(Mandatory=$true)]
        [string]$Group
        )


    # Put all members of group in to a variable
    $GroupMembers = Get-ADGroupMember -Identity $Group

    # Prepare a blank array
    $UsersToList = @()

    # As Get-ADGroupMember does not return the "description" field we will need to loop through and Get-ADUser on each group member to get all their properties
    Foreach ($User in $GroupMembers) {
    
    # Set the current value in the pipe line to $User
    $_ = $User

    # Get the ADUser using their account name
    $User = Get-ADUser -Filter {samaccountname -eq $_.SamAccountName -and enabled -eq $true} -Properties *

    # Add them to the emtpy array created earlier
    $UsersToList += $User

    }


    # Do some super magic formatting!
    # Sort by description and then by name
    # Put in a table and group by description
    # If they are a student then change the group heading to "Year Group" from "Description"
    # Else assume they are staff and change the group heading to "Role" from "Description"
    # Change property name (SamAccountName to Username)
    # Output to a text file on the desktop
    If ($Group -like "Student*") {
        
        $UsersToList |
        Sort-Object @{expression="Description";Ascending=$true},
                    @{expression="Name";Ascending=$true} |
        Format-Table -AutoSize -GroupBy @{Name="Year Group";Expression='Description'} -Property `
        @{Label="Name";Expression={$_.Name}},
        @{Label="Username";Expression={$_.SamAccountName}} |
        Out-File "$HOME\Desktop\$Group User List.txt"

        } else {

        $UsersToList |
        Sort-Object @{expression="Description";Ascending=$true},
                    @{expression="Name";Ascending=$true} |
        Format-Table -AutoSize -GroupBy @{Name="Role";Expression='Description'} -Property `
        @{Label="Name";Expression={$_.Name}},
        @{Label="Username";Expression={$_.SamAccountName}} |
        Out-File "$HOME\Desktop\$Group User List.txt"

        }


}
function Remove-DisabledUsers {

    $domain = (Get-ADDomain).DistinguishedName
    $oucheckname = "_DISABLED"
    $oucheck = [adsi]::Exists("LDAP://OU=$oucheckname,$domain")

    if ($oucheck -eq $false) {
        
        Write-Warning "Cannot find a _DISABLED OU, exiting now..."
        exit
    
    } else {

        $disabledou = (Get-ADOrganizationalUnit -Filter 'Name -Like "*_DISABLED*"').DistinguishedName
        Write-host "I have found a _DISABLED OU at $disabledou" -ForegroundColor Cyan
    
    }

    # Now we will get all disabled users in that OU

    $userstodelete = Get-ADUser -Filter {Enabled -eq $false} -Properties * -SearchBase $disabledou

    Write-Host "I have found the following users to delete..."

    $userstodelete | Format-Table Name,samaccountname,enabled,memberof

    # Here is a confirmation that exits unless y is entered

    $confirm = Read-Host "Would you like to proceed with the removal? (type yes to continue)"
    
    if ($confirm -ne 'yes') {exit}



    foreach ($user in $userstodelete) {
    
        $homedir = $user.homedirectory
        $profiledir = $user.profilepath
        $name = $user.name

        Write-Host "Removing $name's Home Folder" -ForegroundColor Green
        Remove-Item $homedir -Recurse -Force
        
        Write-Host "Removing $name's Profile" -ForegroundColor Green
        Remove-Item "$profiledir*" -Recurse -Force
        
        Write-Host "Removing $name's Account" -ForegroundColor Green
        Remove-ADUser $user -Confirm:$false -Verbose

    }

}
function Rename-Users {

    param (
    [string]$OU
    )

    # get users in a certain OU
    $allusers = Get-ADUser -Filter * -SearchBase $OU

    # loop through all users found
    foreach($user in $allusers){

    # assign variables
    $firstname = $user.givenname
    $surname = $user.surname
    $olddisplayname =$user.name

    # reassign variables with correct capitalization
    $firstname = $firstname.substring(0,1).ToUpper()+$firstname.substring(1).ToLower()

    $surname = $surname.substring(0,1).ToUpper()+$surname.substring(1).ToLower()

    # create the correct displayname
    $newdisplayname = $firstname + " $surname"

    # perform the rename action
    Set-ADUser -Identity $user -DisplayName $newdisplayname
    Rename-ADObject -Identity $user -NewName $newdisplayname

    Write-Host "Renamed $olddisplayname to $newdisplayname" -ForegroundColor Green

    }
}
Function Reset-Passwords {
    
    param (

    [Parameter(Mandatory=$true,Position=0)]
    [string]$OU,

    [Parameter(Mandatory=$true,Position=0)]
    [string]$NewPwd,

    [switch]$RequireChange = $true


    )


    # Get all the users in the OU
    $Users = Get-ADUser -Filter * -Properties * -SearchBase $OU

    foreach ($User in $Users) {
    
        # Set the users password
        Set-ADAccountPassword -Identity $User.SamAccountName -NewPassword (ConvertTo-SecureString $NewPwd -AsPlainText -Force) -Reset -Verbose    
        # If require change is true then do so
        if ($RequireChange -eq $true) {
            Set-ADUser -Identity $User.SamAccountName -ChangePasswordAtLogon $true
        }
    
    Write-Host "$($User.name)'s password has been updated" -ForegroundColor Green
        
    }
}