PowerShell: Find File Download Source

# Recursively search current user's Downloads directory
Get-ChildItem -Recurse -File "$env:UserProfile\Downloads\" | ForEach-Object {

  $file = $_
  # Get all data streams of the file
  $item = Get-Item $file.FullName -Stream *
  if ($item.Stream -contains 'Zone.Identifier') {
    # If the Zone.Identifier stream is present
    # Value  Setting
    # ------------------------------
    # 0      My Computer
    # 1      Local Intranet Zone
    # 2      Trusted sites Zone
    # 3      Internet Zone
    # 4      Restricted Sites Zone
    $streamContents = Get-Content -Raw -Stream 'Zone.Identifier' $item.FileName
    $streamContents = $streamContents.Split("`n")
    $zoneId = $streamContents[1].Split('=')[1] -replace '\s'
    
    if ($zoneId -in @('1','2','3','4')) {
    
      $hostUrl = $streamContents | Where-Object {$_ -match '^HostUrl'}
      $referrerUrl = $streamContents | Where-Object {$_ -match '^ReferrerUrl'}
      if ($hostUrl) { $hostUrl = $hostUrl.Split('=')[1] }
      if ($referrerUrl) { $referrerUrl = $referrerUrl.Split('=')[1] }
     
      [PSCustomObject]@{
        'ZoneId' = $zoneId
        'FileName' = $file.FullName
        'DownloadUrl' = $hostUrl
        'ReferrerUrl' = $referrerUrl
      }
      
    }
    
  }
  
} | Format-List *