<?php
// $Id: xmlsitemap_engines.module,v 1.1.2.5.2.17 2009-05-19 07:27:23 kiam Exp $

/**
 * @file
 * Defines actions for Google, Yahoo!, Ask, and Windows Live.
 */

/**
 * @addtogroup xmlsitemap
 * @{
 */

 /**
  * Implementation of hook_menu().
  */
function xmlsitemap_engines_menu($may_cache) {
  $items = array();
  $access_content = user_access('access content');
  if ($may_cache) {
    if ($verify = variable_get('xmlsitemap_engines_google_verify', '')) {
      $items[] = array(
        'path' => $verify,
        'title' => t('Google verification page'),
        'callback' => 'xmlsitemap_engines_verify',
        'callback arguments' => array('google'),
        'type' => MENU_CALLBACK,
        'access' => $access_content,
      );
    }
    if (($verify = variable_get('xmlsitemap_engines_yahoo_verify', '')) != '') {
      $items[] = array(
        'path' => $verify,
        'title' => t('Yahoo! verification page'),
        'callback' => 'xmlsitemap_engines_verify',
        'callback arguments' => array('yahoo'),
        'type' => MENU_CALLBACK,
        'access' => $access_content,
      );
    }
    if (($verify = variable_get('xmlsitemap_engines_live_verify', 'LiveSearchSiteAuth.xml')) != '') {
      $items[] = array(
        'path' => $verify,
        'title' => t('Windows Live verification page'),
        'callback' => 'xmlsitemap_engines_verify',
        'callback arguments' => array('live'),
        'type' => MENU_CALLBACK,
        'access' => $access_content,
      );
    }
  }
  return $items;
}

/**
 * Implementation of hook_xmlsitemap_engines().
 */
function xmlsitemap_engines_xmlsitemap_engines($op) {
  switch ($op) {
    case 'form':
      $form = array();
      // Ask.com form.
      $form['ask'] = array(
        '#type' => 'fieldset',
        '#title' => t('Ask.com'),
        '#collapsible' => TRUE,
        '#collapsed' => TRUE,
      );
      $form['ask']['xmlsitemap_engines_ask_submit'] = array(
        '#type' => 'checkbox',
        '#title' => t('Submit the sitemap to Ask.com'),
        '#default_value' => variable_get('xmlsitemap_engines_ask_submit', FALSE),
      );
      $form['ask']['xmlsitemap_engines_ask_url'] = array(
        '#type' => 'textfield',
        '#title' => t('Submission URL'),
        '#default_value' => variable_get('xmlsitemap_engines_ask_url', 'http://submissions.ask.com/ping?sitemap=[sitemap]'),
        '#description' => t('The URL to submit the sitemap to. Use %placeholder like placeholder for the sitemap URL.', array('%placeholder' => '[sitemap]')),
      );
      // Google form.
      $form['google'] = array(
        '#type' => 'fieldset',
        '#title' => t('Google'),
        '#collapsible' => TRUE,
        '#collapsed' => TRUE,
      );
      $form['google']['xmlsitemap_engines_google_submit'] = array(
        '#type' => 'checkbox',
        '#title' => t('Submit the sitemap to Google'),
        '#default_value' => variable_get('xmlsitemap_engines_google_submit', FALSE),
      );
      $form['google']['xmlsitemap_engines_google_url'] = array(
        '#type' => 'textfield',
        '#title' => t('Submission URL'),
        '#default_value' => variable_get('xmlsitemap_engines_google_url', 'http://www.google.com/webmasters/tools/ping?sitemap=[sitemap]'),
        '#description' => t('The URL to submit the sitemap to. Use %placeholder like placeholder for the sitemap URL.', array('%placeholder' => '[sitemap]')),
      );
      $form['google']['xmlsitemap_engines_google_verify'] = array(
        '#type' => 'textfield',
        '#title' => t('Verification link'),
        '#default_value' => variable_get('xmlsitemap_engines_google_verify', ''),
        '#description' => t('In order to show statistics, Google will ask you to verify that you control this site by creating a file with a certain name. Enter that name here and the XML sitemap module will create a path to that file name. This will only work if you have clean URLs enabled.'),
      );
      // Moreover.com form.
      $form['moreover'] = array(
        '#type' => 'fieldset',
        '#title' => t('Moreover.com'),
        '#collapsible' => TRUE,
        '#collapsed' => TRUE,
      );
      $form['moreover']['xmlsitemap_engines_moreover_submit'] = array(
        '#type' => 'checkbox',
        '#title' => t('Submit the sitemap to Moreover.com'),
        '#default_value' => variable_get('xmlsitemap_engines_moreover_submit', FALSE),
      );
      $form['moreover']['xmlsitemap_engines_moreover_url'] = array(
        '#type' => 'textfield',
        '#title' => t('Submission URL'),
        '#default_value' => variable_get('xmlsitemap_engines_moreover_url', 'http://api.moreover.com/ping?u=[sitemap]'),
        '#description' => t('The URL to submit the sitemap to. Use %placeholder like placeholder for the sitemap URL.', array('%placeholder' => '[sitemap]')),
      );
      // Windows Live form.
      $form['live'] = array(
        '#type' => 'fieldset',
        '#title' => t('Windows Live'),
        '#collapsible' => TRUE,
        '#collapsed' => TRUE,
      );
      $form['live']['xmlsitemap_engines_live_submit'] = array(
        '#type' => 'checkbox',
        '#title' => t('Submit the sitemap to Windows Live'),
        '#default_value' => variable_get('xmlsitemap_engines_live_submit', FALSE),
      );
      $form['live']['xmlsitemap_engines_live_url'] = array(
        '#type' => 'textfield',
        '#title' => t('Submission URL'),
        '#default_value' => variable_get('xmlsitemap_engines_live_url', 'http://webmaster.live.com/ping.aspx?siteMap=[sitemap]'),
        '#description' => t('The URL to submit the sitemap to. Use %placeholder like placeholder for the sitemap URL.', array('%placeholder' => '[sitemap]')),
      );
      $form['live']['xmlsitemap_engines_live_verify'] = array(
        '#type' => 'textfield',
        '#title' => t('Authentication file'),
        '#default_value' => variable_get('xmlsitemap_engines_live_verify', 'LiveSearchSiteAuth.xml'),
        '#description' => t('Before allowing you to view additional information, Windows Live will ask you to verify that you control this site by creating a file with a certain name. Enter that name here, and XML sitemap will create a path to that file name. This will only work if you have clean URLs enabled.'),
      );
      $form['live']['xmlsitemap_engines_live_verify_string'] = array(
        '#type' => 'textfield',
        '#title' => t('Authentication tag'),
        '#default_value' => variable_get('xmlsitemap_engines_live_verify_string', ''),
        '#description' => t('Windows Live will give you an authentication tag.'),
      );
      // Yahoo! form.
      $form['yahoo'] = array(
        '#type' => 'fieldset',
        '#title' => t('Yahoo!'),
        '#collapsible' => TRUE,
        '#collapsed' => TRUE,
      );
      $form['yahoo']['xmlsitemap_engines_yahoo_submit'] = array(
        '#type' => 'checkbox',
        '#title' => t('Submit the sitemap to Yahoo!'),
        '#default_value' => variable_get('xmlsitemap_engines_yahoo_submit', FALSE),
      );
      $form['yahoo']['xmlsitemap_engines_yahoo_url'] = array(
        '#type' => 'textfield',
        '#title' => t('Submission URL'),
        '#default_value' => variable_get('xmlsitemap_engines_yahoo_url', 'http://search.yahooapis.com/SiteExplorerService/V1/ping?sitemap=[sitemap]'),
        '#description' => t('The URL to submit the sitemap to. Use %placeholder like placeholder for the sitemap URL.', array('%placeholder' => '[sitemap]')),
      );
      $form['yahoo']['xmlsitemap_engines_yahoo_verify'] = array(
        '#type' => 'textfield',
        '#title' => t('Verification link'),
        '#default_value' => variable_get('xmlsitemap_engines_yahoo_verify', ''),
        '#description' => t('Before allowing you to view additional information, Yahoo! will ask you to verify that you control this site by creating a file with a certain name. Enter that name here, and XML sitemap will create a path to that file name. This will only work if you have clean URLs enabled.'),
      );
      $form['yahoo']['xmlsitemap_engines_yahoo_verify_string'] = array(
        '#type' => 'textfield',
        '#title' => t('Authentication key'),
        '#default_value' => variable_get('xmlsitemap_engines_yahoo_verify_string', ''),
        '#description' => t('Yahoo! will ask you to put an authentication key in the verification file.'),
      );
      return $form;
    case 'ping':
      // Ask.com.
      if (variable_get('xmlsitemap_engines_ask_submit', FALSE)) {
        xmlsitemap_engines_submit_sitemap('Ask.com', 'xmlsitemap_engines_ask_url',
          'http://submissions.ask.com/ping?sitemap=[sitemap]'
        );
      }
      // Google.
      if (variable_get('xmlsitemap_engines_google_submit', FALSE)) {
        xmlsitemap_engines_submit_sitemap('Google', 'xmlsitemap_engines_google_url',
          'http://www.google.com/webmasters/tools/ping?sitemap=[sitemap]'
        );
      }
      // Moreover.com.
      if (variable_get('xmlsitemap_engines_moreover_submit', FALSE)) {
        xmlsitemap_engines_submit_sitemap('Moreover.com', 'xmlsitemap_engines_moreover_url',
          'http://api.moreover.com/ping?u=[sitemap]'
        );
      }
      // Windows Live.
      if (variable_get('xmlsitemap_engines_ask_submit', FALSE)) {
        xmlsitemap_engines_submit_sitemap('Windows Live', 'xmlsitemap_engines_live_url',
          'http://webmaster.live.com/ping.aspx?siteMap=[sitemap]'
        );
      }
      // Yahoo!.
      if (variable_get('xmlsitemap_engines_yahoo_submit', FALSE)) {
        xmlsitemap_engines_submit_sitemap('Yahoo!', 'xmlsitemap_engines_yahoo_url',
          'http://search.yahooapis.com/SiteExplorerService/V1/ping?sitemap=[sitemap]'
        );
      }
      break;
    case 'access':
      if (strpos($_SERVER['HTTP_USER_AGENT'], 'Googlebot') !== FALSE) {
        return 'Sitemap downloaded by Google.';
      }
  }
}

/*****************************************************************************
 * Menu callbaks / form builders.
 ****************************************************************************/

/*
 * Menu callback; display verification page.
 */
function xmlsitemap_engines_verify($engine) {
  switch ($engine) {
    case 'google':
      print '<html>'."\n";
      print '  <head>'."\n";
      print '    <title>Hello, Google!</title>'."\n";
      print '  </head>'."\n";
      print '  <body>'."\n";
      print '    <p>Hello, Google!</p>'."\n";
      print '  </body>'."\n";
      print '</html>'."\n";
      break;
    case 'yahoo':
      print variable_get('xmlsitemap_engines_yahoo_verify_string', '');
      break;
    case 'live':
      print '<?xml version="1.0"?>'."\n";
      print "<users>\n";
      print '    <user>'. variable_get('xmlsitemap_engines_live_verify_string', '') ."</user>\n";
      print "</users>\n";
      break;
  }
  drupal_page_footer();
  exit;
}

/*****************************************************************************
 * Public functions.
 ****************************************************************************/

/**
 * Submit the sitemap to the selected engine, and log the result.
 *
 * @param $engine
 *  The identifier for the search engine.
 * @param $url_var
 *  The variable name containing the submission URL used by the search engine.
 * @param $default_url
 *  The default submission URL.
 */
function xmlsitemap_engines_submit_sitemap($engine, $url_var, $default_url) {
  $url = strtr(
    variable_get($url_var, $default_url),
    array('[sitemap]' => url('sitemap.xml', NULL, NULL, TRUE))
  );
  $result = drupal_http_request($url);
  if ($result->code == 200) {
    watchdog('xmlsitemap', t('The sitemap has been successfully submitted to !engine.',
      array('!engine' => $engine))
    );
  }
  else {
    watchdog('xmlsitemap', t('An error occurred while submitting the sitemap to !engine: !code',
      array('!engine' => $engine, '!code' => 0 + $result->code)), WATCHDOG_ERROR
    );
  }
}

/**
 * @} End of "addtogroup xmlsitemap".
 */