serve.php in Advertisement 5

File

serve.php

<?php

// Provide adserve functions to external plugins.
require_once 'adserve.inc';
if (isset($_GET['o'])) {
  $output = preg_replace('/[^a-zA-Z0-9_-]/', '', $_GET['o']);
  if ($output == 'image') {
    require_once 'imageserve.inc';
    adserve_counter_image();
    exit(0);
  }
  else {
    if ($output) {

      // TODO: Document how this hook allows external modules to use serve.php
      $files = array(
        "{$output}.inc",
        // search for file in main ad directory
        "{$output}/{$output}.inc",
        // search for file in subdirectory
        "../{$output}/{$output}.inc",
      );
      foreach ($files as $file) {
        $function = $output . '_serve';
        if (file_exists($file)) {
          require_once "{$file}";
          if (function_exists($function)) {
            $function();
            exit(0);
          }
        }
      }
    }
  }
}

// Default action.
adserve_ad();