/**
* Gets the best available (and enabled) Auto-Update for WordPress Core.
*
* If there's 1.2.3 and 1.3 on offer, it'll choose 1.3 if the install allows it, else, 1.2.3
*
* @since 3.7.0
*
* @return bool|array False on failure, otherwise the core update offering.
*/
function find_core_auto_update()
{
$updates = get_site_transient('update_core');
if (!$updates || empty($updates->updates)) {
return false;
}
include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
$auto_update = false;
foreach ($updates->updates as $update) {
if ('autoupdate' != $update->response) {
continue;
}
if (!WP_Automatic_Upgrader::should_auto_update('core', $update, ABSPATH)) {
continue;
}
if (!$auto_update || version_compare($update->current, $auto_update->current, '>')) {
$auto_update = $update;
}
}
return $auto_update;
}
/**
* Display upgrade WordPress for downloading latest or upgrading automatically form.
*
* @since 2.7
*
* @return null
*/
function core_upgrade_preamble()
{
global $wp_version;
$updates = get_core_updates();
if (!isset($updates[0]->response) || 'latest' == $updates[0]->response) {
echo '<h3>';
_e('You have the latest version of WordPress.');
echo '</h3>';
} else {
echo '<div class="updated inline"><p>';
_e('<strong>Important:</strong> before updating, please <a href="http://codex.wordpress.org/WordPress_Backups">back up your database and files</a>. For help with updates, visit the <a href="http://codex.wordpress.org/Updating_WordPress">Updating WordPress</a> Codex page.');
echo '</p></div>';
echo '<h3 class="response">';
_e('An updated version of WordPress is available.');
echo '</h3>';
}
// This is temporary, for the WordPress 3.7 beta period.
if (isset($updates[0]) && $updates[0]->response == 'development') {
require ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
$ssl_support = wp_http_supports('ssl');
$should_auto_update = WP_Automatic_Upgrader::should_auto_update('core', $updates[0], ABSPATH);
if ($ssl_support && $should_auto_update) {
echo '<div class="updated inline"><p><strong>BETA TESTERS: This install will receive daily auto updates to future beta versions.</strong>';
if (get_locale() !== 'en_US') {
echo ' Translations of importers and default themes will also be updated.';
}
echo '</p><p>You will receive an email with debugging output after each update. If something goes wrong, please <a href="http://wordpress.org/support/forum/alphabeta">post in the support forums</a> or <a href="https://core.trac.wordpress.org/">open a bug report</a>.</div>';
} elseif (!$ssl_support) {
echo '<div class="error inline"><p><strong>BETA TESTERS:</strong> Your server does not support HTTP requests over SSL. This install will not receive auto updates.</p></div>';
} elseif (WP_Automatic_Upgrader::is_vcs_checkout(ABSPATH)) {
echo '<div class="error inline"><p><strong>BETA TESTERS:</strong> This install uses version control (SVN or Git) and thus will not receive auto updates. Try a separate install of WordPress with the <a href="http://wordpress.org/plugins/wordpress-beta-tester/">Beta Tester</a> plugin set to bleeding edge.</p></div>';
}
}
echo '<ul class="core-updates">';
$alternate = true;
foreach ((array) $updates as $update) {
echo '<li>';
list_core_update($update);
echo '</li>';
}
echo '</ul>';
if ($updates) {
echo '<p>' . __('While your site is being updated, it will be in maintenance mode. As soon as your updates are complete, your site will return to normal.') . '</p>';
} else {
list($normalized_version) = explode('-', $wp_version);
echo '<p>' . sprintf(__('<a href="%s">Learn more about WordPress %s</a>.'), esc_url(self_admin_url('about.php')), $normalized_version) . '</p>';
}
dismissed_updates();
}