<?php

$engines = array( 'google' => array('q'),
                  'yahoo' => array('p'),
                  'ask' => array('q'),
                  'msn' => array('q'),
                  'aol' => array('query'),
                  'jumptap' => array('q'),
                  'taptu' => array('t'),
                  'find' => array('q'),
                  'mowser' => array('p'),
                  'orangeworld' => array('q', 'searchText'),
                  'tigo' => array('q'),
                  'minipoisk' => array('q'),
                  'orange' => array('q', 'searchText'),
                  'telusmobility' => array('q'),
                  'mweb' => array('q'),
                  'tinytube' => array('q'),
                  'mph1' => array('q'),
                  'metajam' => array('p'),
                  '999-search' => array('q'),
                  'googlemobile' => array('q'),
                  'mycricket' => array('q'),
                  'skweezer' => array('q') );

/*
 * Takes a referer URL and looks for search information.  If the referer does
 * not appear to be a search source it returns a null.  If the referer is a 
 * search results page it returns an array containing:
 *  name - search engine name
 *  domain - original domain in the referer
 *  keywords - keywords field
 */
function search_info($url) {
  global $engines;

  $p = parse_url($url);
  if (!$p || !$p['host'] || !$p['query']) {
    return null;
  }

  $h = strtolower($p['host']);
  $hp = explode('.',$h);
  if (count($hp) < 2) {
    return null;
  } else if (count($hp) == 2) {
    $name = $hp[0];
  } else {
    $name = array_shift(array_slice($hp, -2, 1));
    if (in_array($name, array('co', 'com'))) {
      $name = array_shift(array_slice($hp, -3, 1));
    }
  }

  if (!array_key_exists($name, $engines)) {
    return null;
  }

  parse_str($p['query'], $params);

  $keywords = null;
  $potentials = $engines[$name];
  while ($keywords == null && count($potentials)) {
    $param = array_shift($potentials);
    if (array_key_exists($param, $params)) {
      $keywords = $params[$param];
    }
  }

  if ($keywords == null) {
    return null;
  }

  return array( 'name' => $name, 
                'domain' => $h,
                'keywords' => $keywords );
}


$fh = fopen('php://stdin', 'r');
while (!feof($fh)) {
  $line = rtrim(fgets($fh));
  $si = search_info($line);
  if ($si) {
    print $si['name'] . " " . $si['keywords'] . "\n";
  }
}