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<?php
// $Id$
/**
* @file
* Alerts other sites that your site has been updated.
*/
/**
* Implementation of hook_help().
*/
function ping_help($path, $arg) {
switch ($path) {
case 'admin/help#ping':
$output = '<p>'. t('The ping module is useful for notifying interested sites that your site has changed. It automatically sends notifications, or "pings", to the <a href="@external-http-pingomatic-com">pingomatic</a> service about new or updated content. In turn, <a href="@external-http-pingomatic-com">pingomatic</a> notifies other popular services, including weblogs.com, Technorati, blo.gs, BlogRolling, Feedster.com, and Moreover.', array('@external-http-pingomatic-com' => 'http://pingomatic.com/')) .'</p>';
$output .= '<p>'. t('The ping module requires <code>cron</code> or a similar periodic job scheduler to be enabled.') .'</p>';
$output .= '<p>'. t('For more information, see the online handbook entry for <a href="@ping">Ping module</a>.', array('@ping' => 'http://drupal.org/handbook/modules/ping/')) .'</p>';
return $output;
}
}
/**
* Implementation of hook_cron().
*
* Fire off notifications of updates to remote sites.
*/
function ping_cron() {
global $base_url;
if (variable_get('site_name', 0)) {
if (db_result(db_query("SELECT COUNT(*) FROM {node} WHERE status = 1 AND (created > '". variable_get('cron_last', time()) ."' OR changed > '". variable_get('cron_last', time()) ."')"))) {
_ping_notify(variable_get('site_name', ''), $base_url);
}
}
}
/**
* Call hook_ping() in all modules to notify remote sites that there is
* new content at this one.
*/
function _ping_notify($name, $url) {
module_invoke_all('ping', $name, $url);
}
/**
* Implementation of hook_ping().
*
* Notifies pingomatic.com, blo.gs, and technorati.com of changes at this site.
*/
function ping_ping($name = '', $url = '') {
$result = xmlrpc('http://rpc.pingomatic.com', 'weblogUpdates.ping', $name, $url);
if ($result === FALSE) {
watchdog('directory ping', 'Failed to notify pingomatic.com (site).', array(), WATCHDOG_WARNING);
}
}
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