Grab image from AD and rescale if desired

gistfile1.txt

function UserPhoto ($user, [int]$width, [int]$height) {
    $user_data = ([adsisearcher]"(&(objectClass=user)(sAMAccountName=$user))").FindAll()
    $stream = [System.Io.MemoryStream]::new($user_data.Properties["thumbnailphoto"][0])
    $img = [System.Drawing.Image]::FromStream($stream)
 
    if ($width -or $height) {
        if (-not $width) {
            $width = ($img.Width / $img.height) * $height
        }

        if (-not $height) {
            $height = ($img.height / $img.width) * $width
        }

        if ($width -ne $img.Width -or $height -ne $img.Height) {
            $destination_rect = New-Object System.Drawing.Rectangle 0, 0, $width, $height
            $destination_image = New-Object System.Drawing.Bitmap $width, $height
            $destination_image.SetResolution($img.HorizontalResolution, $img.VerticalResolution)
 
            $graphics = [System.Drawing.Graphics]::FromImage($destination_image)
            $graphics.CompositingMode = [System.Drawing.Drawing2D.CompositingMode]::SourceCopy
            $graphics.CompositingQuality = [System.Drawing.Drawing2D.CompositingQuality]::HighQuality
            $graphics.InterpolationMode = [System.Drawing.Drawing2D.InterpolationMode]::HighQualityBicubic
            $graphics.SmoothingMode = [System.Drawing.Drawing2D.SmoothingMode]::HighQuality
            $graphics.PixelOffsetMode = [System.Drawing.Drawing2D.PixelOffsetMode]::HighQuality
 
            $wrapmode = [System.Drawing.Imaging.ImageAttributes]::new()
            $wrapmode.SetWrapMode([System.Drawing.Drawing2D.WrapMode]::TileFlipXY)
 
            $graphics.DrawImage($img, $destination_rect, 0, 0, $img.Width, $img.Height, [System.Drawing.GraphicsUnit]::Pixel, $wrapmode)
 
            $destination_image
        }
        else {
            # Width and height parameters don't differ from what the image already has
            $img
        }
    }
    else {
        $img
    }
}