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<?php
// $Id$
/**
* @file
* Code required only when fetching information about available updates.
*/
/**
* Callback to manually check the update status without cron.
*/
function update_manual_status() {
if (_update_refresh()) {
drupal_set_message(t('Fetched information about all available new releases and updates.'));
}
else {
drupal_set_message(t('Unable to fetch any information about available new releases and updates.'), 'error');
}
drupal_goto('admin/reports/updates');
}
/**
* Fetch project info via XML from a central server.
*/
function _update_refresh() {
global $base_url;
module_load_include('inc', 'update', 'update.compare');
// Since we're fetching new available update data, we want to clear
// our cache of both the projects we care about, and the current update
// status of the site. We do *not* want to clear the cache of available
// releases just yet, since that data (even if it's stale) can be useful
// during update_get_projects(); for example, to modules that implement
// hook_system_info_alter() such as cvs_deploy.
_update_cache_clear('update_project_projects');
_update_cache_clear('update_project_data');
$available = array();
$data = array();
$site_key = md5($base_url . drupal_get_private_key());
$projects = update_get_projects();
// Now that we have the list of projects, we should also clear our cache of
// available release data, since even if we fail to fetch new data, we need
// to clear out the stale data at this point.
_update_cache_clear('update_available_releases');
foreach ($projects as $key => $project) {
$url = _update_build_fetch_url($project, $site_key);
$xml = drupal_http_request($url);
if (isset($xml->data)) {
$data[] = $xml->data;
}
}
if ($data) {
$available = update_parse_xml($data);
}
if (!empty($available) && is_array($available)) {
$frequency = variable_get('update_check_frequency', 1);
_update_cache_set('update_available_releases', $available, REQUEST_TIME + (60 * 60 * 24 * $frequency));
variable_set('update_last_check', REQUEST_TIME);
watchdog('update', 'Fetched information about all available new releases and updates.', array(), WATCHDOG_NOTICE, l(t('view'), 'admin/reports/updates'));
}
else {
watchdog('update', 'Unable to fetch any information about available new releases and updates.', array(), WATCHDOG_ERROR, l(t('view'), 'admin/reports/updates'));
}
return $available;
}
/**
* Generates the URL to fetch information about project updates.
*
* This figures out the right URL to use, based on the project's .info file
* and the global defaults. Appends optional query arguments when the site is
* configured to report usage stats.
*
* @param $project
* The array of project information from update_get_projects().
* @param $site_key
* The anonymous site key hash (optional).
*
* @see update_refresh()
* @see update_get_projects()
*/
function _update_build_fetch_url($project, $site_key = '') {
$default_url = variable_get('update_fetch_url', UPDATE_DEFAULT_URL);
if (!isset($project['info']['project status url'])) {
$project['info']['project status url'] = $default_url;
}
$name = $project['name'];
$url = $project['info']['project status url'];
$url .= '/' . $name . '/' . DRUPAL_CORE_COMPATIBILITY;
if (!empty($site_key)) {
$url .= (strpos($url, '?') === TRUE) ? '&' : '?';
$url .= 'site_key=';
$url .= drupal_urlencode($site_key);
if (!empty($project['info']['version'])) {
$url .= '&version=';
$url .= drupal_urlencode($project['info']['version']);
}
}
return $url;
}
/**
* Perform any notifications that should be done once cron fetches new data.
*
* This method checks the status of the site using the new data and depending
* on the configuration of the site, notifies administrators via email if there
* are new releases or missing security updates.
*
* @see update_requirements()
*/
function _update_cron_notify() {
include_once DRUPAL_ROOT . '/includes/install.inc';
$status = update_requirements('runtime');
$params = array();
$notify_all = (variable_get('update_notification_threshold', 'all') == 'all');
foreach (array('core', 'contrib') as $report_type) {
$type = 'update_' . $report_type;
if (isset($status[$type]['severity'])
&& ($status[$type]['severity'] == REQUIREMENT_ERROR || ($notify_all && $status[$type]['reason'] == UPDATE_NOT_CURRENT))) {
$params[$report_type] = $status[$type]['reason'];
}
}
if (!empty($params)) {
$notify_list = variable_get('update_notify_emails', '');
if (!empty($notify_list)) {
$default_language = language_default();
foreach ($notify_list as $target) {
if ($target_user = user_load_by_mail($target)) {
$target_language = user_preferred_language($target_user);
}
else {
$target_language = $default_language;
}
drupal_mail('update', 'status_notify', $target, $target_language, $params);
}
}
}
}
/**
* Parse the XML of the Drupal release history info files.
*
* @param $raw_xml_list
* Array of raw XML strings, one for each fetched project.
*
* @return
* Nested array of parsed data about projects and releases.
*/
function update_parse_xml($raw_xml_list) {
$data = array();
foreach ($raw_xml_list as $raw_xml) {
$xml = new SimpleXMLElement($raw_xml);
$short_name = (string)$xml->short_name;
$data[$short_name] = array();
foreach ($xml as $k => $v) {
$data[$short_name][$k] = (string)$v;
}
$data[$short_name]['releases'] = array();
foreach ($xml->releases->children() as $release) {
$version = (string)$release->version;
$data[$short_name]['releases'][$version] = array();
foreach ($release->children() as $k => $v) {
$data[$short_name]['releases'][$version][$k] = (string)$v;
}
$data[$short_name]['releases'][$version]['terms'] = array();
if ($release->terms) {
foreach ($release->terms->children() as $term) {
if (!isset($data[$short_name]['releases'][$version]['terms'][(string)$term->name])) {
$data[$short_name]['releases'][$version]['terms'][(string)$term->name] = array();
}
$data[$short_name]['releases'][$version]['terms'][(string)$term->name][] = (string)$term->value;
}
}
}
}
return $data;
}
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