Querying PE Console for nodes

$Script:PuppetConsoleURI = 'https://fill.this.in' # e.g. 'https://peconsole.company.local';
$Script:PuppetConsoleUsername = 'username';
$Script:PuppetConsolePassword = 'password'  # Cleartext

Function Get-PuppetLoginToken() {
  $body = @{
    'username' = $Script:PuppetConsoleUsername;
    'password' = $Script:PuppetConsolePassword;
    'redirect' = '/'
  }
  $sv = $null

  $contentType = 'application/x-www-form-urlencoded'
  $result = Invoke-WebRequest -Uri "$($Script:PuppetConsoleURI)/auth/login" -ContentType $contentType `
    -Method Post -Body $body -SessionVariable sv -SkipCertificateCheck

  $body = $null

  $token = $null
  $result.Headers.'Set-Cookie' | % {
    if ($_.SubString(0,8) -eq 'pl_ssti=') { $token = ($_.SubString(8) -split ';',2)[0]}
  }
  $sv.Headers.Add('X-Authentication', $Token + '|no_keepalive')
  $script:PuppetRequestSession = $sv
}

Function Script:Invoke-PuppetRequest($URI, $Method = 'GET', $Body = $null) {
  $iwrArgs = @{
    'URI' = "$($Script:PuppetConsoleURI)$URI";
    'Method' = $Method;
    'WebSession' = $script:PuppetRequestSession;
    'UseBasicParsing' = $true;
  }
  if ($Body -ne $null) { $iwrArgs.Add('Body', $Body) }
  $oldPreference = $progressPreference
  $progressPreference = 'SilentlyContinue'
  $result = Invoke-WebRequest @iwrArgs -SkipCertificateCheck
  $progressPreference = $oldPreference

  Return $result.Content
}

Function Get-AllPuppetNodes()
{
  $obj = New-Object -TypeName System.Collections.ArrayList
  # Only fetch up to 2000 nodes
  $Maximum = 2000
  # Get 100 nodes at a time
  $OffsetBlock = 100

  $offset = 0
  $returnedObjects = 0
  Write-Progress -Activity 'Loading Nodes' -PercentComplete 0

  $body = @{
    'filter' = (@{} | ConvertTo-Json -Depth 5);
    'limit' = $OffsetBlock;
    'offset' = $offset;
  }

  do {
    $body.offset = $offset;

    $result = (Invoke-PuppetRequest -URI '/api/cm/nodes' -Body $body | ConvertFrom-JSON)
    $totalNodes = $result.meta.total
    if ($totalNodes -le 1) { $totalNodes = $Maximum }
    Write-Progress -Activity 'Loading Nodes' -PercentComplete ($offset/$totalNodes * 100)
    $returnedObjects = 0
    $result.'cm/nodes' | % {
      Write-Output $_
      $returnedObjects = $returnedObjects + 1
    }
    $offset = $offset + $OffsetBlock
  } while (($returnedObjects -eq $OffsetBlock) -and ($obj.Count -le $Maximum))
  Write-Progress -Activity 'Loading Nodes' -Completed
}

# Useful stuff is here ----v

Get-PuppetLoginToken

Get-AllPuppetNodes | ? { ($_.Status -eq 'unreported') -or ($_.Status -eq 'failure') -or ($_.ReportedAt -lt (Get-Date).AddDays(-5)) }