Cricao de Sites - 650 Layouts Prontos/WebMasters.iso/Blogs/wordpress2.6.exe/wordpress2.6/wp-includes/update.php

PHP Script | 2008-08-02 | 5.6 KB | 174 lines

<?php
/**
 * A simple set of functions to check our version 1.0 update service
 *
 * @package WordPress
 * @since 2.3
 */

/**
 * wp_version_check() - Check WordPress version against the newest version.
 *
 * The WordPress version, PHP version, and Locale is sent. Checks against the WordPress server at
 * api.wordpress.org. Will only check if PHP has fsockopen enabled and WordPress isn't installing.
 *
 * @package WordPress
 * @since 2.3
 * @uses $wp_version Used to check against the newest WordPress version.
 *
 * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
 */
function wp_version_check() {
    if ( !function_exists('fsockopen') || defined('WP_INSTALLING') )
        return;

    global $wp_version;
    $php_version = phpversion();

    $current = get_option( 'update_core' );
    $locale = get_locale();

    if (
        isset( $current->last_checked ) &&
        43200 > ( time() - $current->last_checked ) &&
        $current->version_checked == $wp_version
    )
        return false;

    $new_option = '';
    $new_option->last_checked = time(); // this gets set whether we get a response or not, so if something is down or misconfigured it won't delay the page load for more than 3 seconds, twice a day
    $new_option->version_checked = $wp_version;

    $http_request  = "GET /core/version-check/1.1/?version=$wp_version&php=$php_version&locale=$locale HTTP/1.0\r\n";
    $http_request .= "Host: api.wordpress.org\r\n";
    $http_request .= 'Content-Type: application/x-www-form-urlencoded; charset=' . get_option('blog_charset') . "\r\n";
    $http_request .= 'User-Agent: WordPress/' . $wp_version . '; ' . get_bloginfo('url') . "\r\n";
    $http_request .= "\r\n";

    $response = '';
    if ( false !== ( $fs = @fsockopen( 'api.wordpress.org', 80, $errno, $errstr, 3 ) ) && is_resource($fs) ) {
        fwrite( $fs, $http_request );
        while ( !feof( $fs ) )
            $response .= fgets( $fs, 1160 ); // One TCP-IP packet
        fclose( $fs );

        $response = explode("\r\n\r\n", $response, 2);
        if ( !preg_match( '|HTTP/.*? 200|', $response[0] ) )
            return false;

        $body = trim( $response[1] );
        $body = str_replace(array("\r\n", "\r"), "\n", $body);

        $returns = explode("\n", $body);

        $new_option->response = attribute_escape( $returns[0] );
        if ( isset( $returns[1] ) )
            $new_option->url = clean_url( $returns[1] );
        if ( isset( $returns[2] ) )
            $new_option->current = attribute_escape( $returns[2] );
    }
    update_option( 'update_core', $new_option );
}
add_action( 'init', 'wp_version_check' );

/**
 * wp_update_plugins() - Check plugin versions against the latest versions hosted on WordPress.org.
 *
 * The WordPress version, PHP version, and Locale is sent along with a list of all plugins installed.
 * Checks against the WordPress server at api.wordpress.org.
 * Will only check if PHP has fsockopen enabled and WordPress isn't installing.
 *
 * @package WordPress
 * @since 2.3
 * @uses $wp_version Used to notidy the WordPress version.
 *
 * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
 */
function wp_update_plugins() {
    global $wp_version;

    if ( !function_exists('fsockopen') || defined('WP_INSTALLING') )
        return false;

    // If running blog-side, bail unless we've not checked in the last 12 hours
    if ( !function_exists( 'get_plugins' ) )
        require_once( ABSPATH . 'wp-admin/includes/plugin.php' );

    $plugins = get_plugins();
    $active  = get_option( 'active_plugins' );
    $current = get_option( 'update_plugins' );

    $new_option = '';
    $new_option->last_checked = time();
    $time_not_changed = isset( $current->last_checked ) && 43200 > ( time() - $current->last_checked );

    $plugin_changed = false;
    foreach ( $plugins as $file => $p ) {
        $new_option->checked[ $file ] = $p['Version'];

        if ( !isset( $current->checked[ $file ] ) ) {
            $plugin_changed = true;
            continue;
        }

        if ( strval($current->checked[ $file ]) !== strval($p['Version']) )
            $plugin_changed = true;
    }

    foreach ( (array) $current->response as $plugin_file => $update_details ) {
        if ( ! isset($plugins[ $plugin_file ]) ) {
            $plugin_changed = true;
        }
    }

    // Bail if we've checked in the last 12 hours and if nothing has changed
    if ( $time_not_changed && !$plugin_changed )
        return false;

    $to_send->plugins = $plugins;
    $to_send->active = $active;
    $send = serialize( $to_send );

    $request = 'plugins=' . urlencode( $send );
    $http_request  = "POST /plugins/update-check/1.0/ HTTP/1.0\r\n";
    $http_request .= "Host: api.wordpress.org\r\n";
    $http_request .= "Content-Type: application/x-www-form-urlencoded; charset=" . get_option('blog_charset') . "\r\n";
    $http_request .= "Content-Length: " . strlen($request) . "\r\n";
    $http_request .= 'User-Agent: WordPress/' . $wp_version . '; ' . get_bloginfo('url') . "\r\n";
    $http_request .= "\r\n";
    $http_request .= $request;

    $response = '';
    if( false != ( $fs = @fsockopen( 'api.wordpress.org', 80, $errno, $errstr, 3) ) && is_resource($fs) ) {
        fwrite($fs, $http_request);

        while ( !feof($fs) )
            $response .= fgets($fs, 1160); // One TCP-IP packet
        fclose($fs);
        $response = explode("\r\n\r\n", $response, 2);
    }

    $response = unserialize( $response[1] );

    if ( $response )
        $new_option->response = $response;

    update_option( 'update_plugins', $new_option );
}

function _maybe_update_plugins() {
    $current = get_option( 'update_plugins' );
    if ( isset( $current->last_checked ) && 43200 > ( time() - $current->last_checked ) )
        return;
    wp_update_plugins();
}

add_action( 'load-plugins.php', 'wp_update_plugins' );
add_action( 'admin_init', '_maybe_update_plugins' );
add_action( 'wp_update_plugins', 'wp_update_plugins' );

if ( !wp_next_scheduled('wp_update_plugins') )
    wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');

?>