root/tags/1.3/wp-admin/includes/upgrade.php

<?php

if ( file_exists(ABSPATH . 'wp-content/install.php') )
    require (ABSPATH . 'wp-content/install.php');
require_once(ABSPATH . 'wp-admin/includes/admin.php');
require_once(ABSPATH . 'wp-admin/includes/schema.php');

if ( !function_exists('wp_install') ) :
function wp_install($blog_title, $user_name, $user_email, $public, $meta='') {
    global $wp_rewrite;

    wp_check_mysql_version();
    wp_cache_flush();
    make_db_current_silent();
    populate_options();
    populate_roles();

    update_option('blogname', $blog_title);
    update_option('admin_email', $user_email);
    update_option('blog_public', $public);
    $schema = ( isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ) ? 'https://' : 'http://';

    if ( defined('WP_SITEURL') && '' != WP_SITEURL )
        $guessurl = WP_SITEURL;
    else
        $guessurl = preg_replace('|/wp-admin/.*|i', '', $schema . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);

    update_option('siteurl', $guessurl);

    // If not a public blog, don't ping.
    if ( ! $public )
        update_option('default_pingback_flag', 0);

    // Create default user.  If the user already exists, the user tables are
    // being shared among blogs.  Just set the role in that case.
    $user_id = username_exists($user_name);
    if ( !$user_id ) {
        $random_password = substr(md5(uniqid(microtime())), 0, 6);
        $user_id = wp_create_user($user_name, $random_password, $user_email);
    } else {
        $random_password = __('User already exists.  Password inherited.');
    }

    $user = new WP_User($user_id);
    $user->set_role('administrator');

    wp_install_defaults($user_id);

    $wp_rewrite->flush_rules();

    wp_new_blog_notification($blog_title, $guessurl, $user_id, $random_password);

    wp_cache_flush();

    return array('url' => $guessurl, 'user_id' => $user_id, 'password' => $random_password);
}
endif;

if ( !function_exists('wp_install_defaults') ) :
function wp_install_defaults($user_id) {
    global $wpdb;

    // Default category
    $cat_name = $wpdb->escape(__('Uncategorized'));
    $cat_slug = sanitize_title(__('Uncategorized'));
    $wpdb->query("INSERT INTO $wpdb->terms (name, slug, term_group) VALUES ('$cat_name', '$cat_slug', '0')");
    $wpdb->query("INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES ('1', 'category', '', '0', '1')");

    // Default link category
    $cat_name = $wpdb->escape(__('Blogroll'));
    $cat_slug = sanitize_title(__('Blogroll'));
    $wpdb->query("INSERT INTO $wpdb->terms (name, slug, term_group) VALUES ('$cat_name', '$cat_slug', '0')");
    $wpdb->query("INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES ('2', 'link_category', '', '0', '7')");

    // Now drop in some default links
    $wpdb->query("INSERT INTO $wpdb->links (link_url, link_name, link_category, link_rss, link_notes) VALUES ('http://codex.wordpress.org/', 'Documentation', 0, '', '');");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (1, 2)" );

    $wpdb->query("INSERT INTO $wpdb->links (link_url, link_name, link_category, link_rss, link_notes) VALUES ('http://wordpress.org/development/', 'Development Blog', 0, 'http://wordpress.org/development/feed/', '');");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (2, 2)" );

    $wpdb->query("INSERT INTO $wpdb->links (link_url, link_name, link_category, link_rss, link_notes) VALUES ('http://wordpress.org/extend/ideas/', 'Suggest Ideas', 0, '', '');");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (3, 2)" );

    $wpdb->query("INSERT INTO $wpdb->links (link_url, link_name, link_category, link_rss, link_notes) VALUES ('http://wordpress.org/support/', 'Support Forum', 0, '', '');");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (4, 2)" );

    $wpdb->query("INSERT INTO $wpdb->links (link_url, link_name, link_category, link_rss, link_notes) VALUES ('http://wordpress.org/extend/plugins/', 'Plugins', 0, '', '');");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (5, 2)" );

    $wpdb->query("INSERT INTO $wpdb->links (link_url, link_name, link_category, link_rss, link_notes) VALUES ('http://wordpress.org/extend/themes/', 'Themes', 0, '', '');");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (6, 2)" );

    $wpdb->query("INSERT INTO $wpdb->links (link_url, link_name, link_category, link_rss, link_notes) VALUES ('http://planet.wordpress.org/', 'WordPress Planet', 0, '', '');");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (7, 2)" );

    // First post
    $now = date('Y-m-d H:i:s');
    $now_gmt = gmdate('Y-m-d H:i:s');
    $first_post_guid = get_option('home') . '/?p=1';
    $wpdb->query("INSERT INTO $wpdb->posts (post_author, post_date, post_date_gmt, post_content, post_excerpt, post_title, post_category, post_name, post_modified, post_modified_gmt, guid, comment_count, to_ping, pinged, post_content_filtered) VALUES ($user_id, '$now', '$now_gmt', '".$wpdb->escape(__('Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!'))."', '', '".$wpdb->escape(__('Hello world!'))."', '0', '".$wpdb->escape(__('hello-world'))."', '$now', '$now_gmt', '$first_post_guid', '1', '', '', '')");
    $wpdb->query( "INSERT INTO $wpdb->term_relationships (`object_id`, `term_taxonomy_id`) VALUES (1, 1)" );

    // Default comment
    $wpdb->query("INSERT INTO $wpdb->comments (comment_post_ID, comment_author, comment_author_email, comment_author_url, comment_date, comment_date_gmt, comment_content) VALUES ('1', '".$wpdb->escape(__('Mr WordPress'))."', '', 'http://wordpress.org/', '$now', '$now_gmt', '".$wpdb->escape(__('Hi, this is a comment.<br />To delete a comment, just log in and view the post&#039;s comments. There you will have the option to edit or delete them.'))."')");

    // First Page
    $wpdb->query("INSERT INTO $wpdb->posts (post_author, post_date, post_date_gmt, post_content, post_excerpt, post_title, post_category, post_name, post_modified, post_modified_gmt, post_status, post_type, to_ping, pinged, post_content_filtered) VALUES ($user_id, '$now', '$now_gmt', '".$wpdb->escape(__('This is an example of a WordPress page, you could edit this to put information about yourself or your site so readers know where you are coming from. You can create as many pages like this one or sub-pages as you like and manage all of your content inside of WordPress.'))."', '', '".$wpdb->escape(__('About'))."', '0', '".$wpdb->escape(__('about'))."', '$now', '$now_gmt', 'publish', 'page', '', '', '')");
}
endif;

if ( !function_exists('wp_new_blog_notification') ) :
function wp_new_blog_notification($blog_title, $blog_url, $user_id, $password) {
    $user = new WP_User($user_id);
    $email = $user->user_email;
    $name = $user->user_login;
    $message_headers = 'From: "' . $blog_title . '" <wordpress@' . $_SERVER['SERVER_NAME'] . '>';
    $message = sprintf(__("Your new WordPress blog has been successfully set up at:

%1\$s

You can log in to the administrator account with the following information:

Username: %2\$s
Password: %3\$s

We hope you enjoy your new blog. Thanks!

--The WordPress Team
http://wordpress.org/
"), $blog_url, $name, $password);

    @wp_mail($email, __('New WordPress Blog'), $message, $message_headers);
}
endif;

if ( !function_exists('wp_upgrade') ) :
function wp_upgrade() {
    global $wp_current_db_version, $wp_db_version;

    $wp_current_db_version = __get_option('db_version');

    // We are up-to-date.  Nothing to do.
    if ( $wp_db_version == $wp_current_db_version )
        return;

    wp_check_mysql_version();
    wp_cache_flush();
    make_db_current_silent();
    upgrade_all();
    wp_cache_flush();
}
endif;

// Functions to be called in install and upgrade scripts
function upgrade_all() {
    global $wp_current_db_version, $wp_db_version, $wp_rewrite;
    $wp_current_db_version = __get_option('db_version');

    // We are up-to-date.  Nothing to do.
    if ( $wp_db_version == $wp_current_db_version )
        return;

    // If the version is not set in the DB, try to guess the version.
    if ( empty($wp_current_db_version) ) {
        $wp_current_db_version = 0;

        // If the template option exists, we have 1.5.
        $template = __get_option('template');
        if ( !empty($template) )
            $wp_current_db_version = 2541;
    }

    if ( $wp_current_db_version < 6039 )
        upgrade_230_options_table();

    populate_options();

    if ( $wp_current_db_version < 2541 ) {
        upgrade_100();
        upgrade_101();
        upgrade_110();
        upgrade_130();
    }

    if ( $wp_current_db_version < 3308 )
        upgrade_160();

    if ( $wp_current_db_version < 4772 )
        upgrade_210();

    if ( $wp_current_db_version < 4351 )
        upgrade_old_slugs();

    if ( $wp_current_db_version < 5539 )
        upgrade_230();

    if ( $wp_current_db_version < 6124 )
        upgrade_230_old_tables();

    maybe_disable_automattic_widgets();

    $wp_rewrite->flush_rules();

    update_option('db_version', $wp_db_version);
}

function upgrade_100() {
    global $wpdb;

    // Get the title and ID of every post, post_name to check if it already has a value
    $posts = $wpdb->get_results("SELECT ID, post_title, post_name FROM $wpdb->posts WHERE post_name = ''");
    if ($posts) {
        foreach($posts as $post) {
            if ('' == $post->post_name) {
                $newtitle = sanitize_title($post->post_title);
                $wpdb->query("UPDATE $wpdb->posts SET post_name = '$newtitle' WHERE ID = '$post->ID'");
            }
        }
    }

    $categories = $wpdb->get_results("SELECT cat_ID, cat_name, category_nicename FROM $wpdb->categories");
    foreach ($categories as $category) {
        if ('' == $category->category_nicename) {
            $newtitle = sanitize_title($category->cat_name);
            $wpdb->query("UPDATE $wpdb->categories SET category_nicename = '$newtitle' WHERE cat_ID = '$category->cat_ID'");
        }
    }


    $wpdb->query("UPDATE $wpdb->options SET option_value = REPLACE(option_value, 'wp-links/links-images/', 'wp-images/links/')
    WHERE option_name LIKE 'links_rating_image%'
    AND option_value LIKE 'wp-links/links-images/%'");

    $done_ids = $wpdb->get_results("SELECT DISTINCT post_id FROM $wpdb->post2cat");
    if ($done_ids) :
        foreach ($done_ids as $done_id) :
            $done_posts[] = $done_id->post_id;
        endforeach;
        $catwhere = ' AND ID NOT IN (' . implode(',', $done_posts) . ')';
    else:
        $catwhere = '';
    endif;

    $allposts = $wpdb->get_results("SELECT ID, post_category FROM $wpdb->posts WHERE post_category != '0' $catwhere");
    if ($allposts) :
        foreach ($allposts as $post) {
            // Check to see if it's already been imported
            $cat = $wpdb->get_row("SELECT * FROM $wpdb->post2cat WHERE post_id = $post->ID AND category_id = $post->post_category");
            if (!$cat && 0 != $post->post_category) { // If there's no result
                $wpdb->query("
                    INSERT INTO $wpdb->post2cat
                    (post_id, category_id)
                    VALUES
                    ('$post->ID', '$post->post_category')
                    ");
            }
        }
    endif;
}

function upgrade_101() {
    global $wpdb;

    // Clean up indices, add a few
    add_clean_index($wpdb->posts, 'post_name');
    add_clean_index($wpdb->posts, 'post_status');
    add_clean_index($wpdb->categories, 'category_nicename');
    add_clean_index($wpdb->comments, 'comment_approved');
    add_clean_index($wpdb->comments, 'comment_post_ID');
    add_clean_index($wpdb->links , 'link_category');
    add_clean_index($wpdb->links , 'link_visible');
}


function upgrade_110() {
    global $wpdb;

    // Set user_nicename.
    $users = $wpdb->get_results("SELECT ID, user_nickname, user_nicename FROM $wpdb->users");
    foreach ($users as $user) {
        if ('' == $user->user_nicename) {
            $newname = sanitize_title($user->user_nickname);
            $wpdb->query("UPDATE $wpdb->users SET user_nicename = '$newname' WHERE ID = '$user->ID'");
        }
    }

    $users = $wpdb->get_results("SELECT ID, user_pass from $wpdb->users");
    foreach ($users as $row) {
        if (!preg_match('/^[A-Fa-f0-9]{32}$/', $row->user_pass)) {
            $wpdb->query('UPDATE '.$wpdb->users.' SET user_pass = MD5(\''.$row->user_pass.'\') WHERE ID = \''.$row->ID.'\'');
        }
    }


    // Get the GMT offset, we'll use that later on
    $all_options = get_alloptions_110();

    $time_difference = $all_options->time_difference;

    $server_time = time()+date('Z');
    $weblogger_time = $server_time + $time_difference*3600;
    $gmt_time = time();

    $diff_gmt_server = ($gmt_time - $server_time) / 3600;
    $diff_weblogger_server = ($weblogger_time - $server_time) / 3600;
    $diff_gmt_weblogger = $diff_gmt_server - $diff_weblogger_server;
    $gmt_offset = -$diff_gmt_weblogger;

    // Add a gmt_offset option, with value $gmt_offset
    add_option('gmt_offset', $gmt_offset);

    // Check if we already set the GMT fields (if we did, then
    // MAX(post_date_gmt) can't be '0000-00-00 00:00:00'
    // <michel_v> I just slapped myself silly for not thinking about it earlier
    $got_gmt_fields = ($wpdb->get_var("SELECT MAX(post_date_gmt) FROM $wpdb->posts") == '0000-00-00 00:00:00') ? false : true;

    if (!$got_gmt_fields) {

        // Add or substract time to all dates, to get GMT dates
        $add_hours = intval($diff_gmt_weblogger);
        $add_minutes = intval(60 * ($diff_gmt_weblogger - $add_hours));
        $wpdb->query("UPDATE $wpdb->posts SET post_date_gmt = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
        $wpdb->query("UPDATE $wpdb->posts SET post_modified = post_date");
        $wpdb->query("UPDATE $wpdb->posts SET post_modified_gmt = DATE_ADD(post_modified, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE) WHERE post_modified != '0000-00-00 00:00:00'");
        $wpdb->query("UPDATE $wpdb->comments SET comment_date_gmt = DATE_ADD(comment_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
        $wpdb->query("UPDATE $wpdb->users SET user_registered = DATE_ADD(user_registered, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
    }

}

function upgrade_130() {
    global $wpdb;

    // Remove extraneous backslashes.
    $posts = $wpdb->get_results("SELECT ID, post_title, post_content, post_excerpt, guid, post_date, post_name, post_status, post_author FROM $wpdb->posts");
    if ($posts) {
        foreach($posts as $post) {
            $post_content = addslashes(deslash($post->post_content));
            $post_title = addslashes(deslash($post->post_title));
            $post_excerpt = addslashes(deslash($post->post_excerpt));
            if ( empty($post->guid) )
                $guid = get_permalink($post->ID);
            else
                $guid = $post->guid;

            $wpdb->query("UPDATE $wpdb->posts SET post_title = '$post_title', post_content = '$post_content', post_excerpt = '$post_excerpt', guid = '$guid' WHERE ID = '$post->ID'");
        }
    }

    // Remove extraneous backslashes.
    $comments = $wpdb->get_results("SELECT comment_ID, comment_author, comment_content FROM $wpdb->comments");
    if ($comments) {
        foreach($comments as $comment) {
            $comment_content = addslashes(deslash($comment->comment_content));
            $comment_author = addslashes(deslash($comment->comment_author));
            $wpdb->query("UPDATE $wpdb->comments SET comment_content = '$comment_content', comment_author = '$comment_author' WHERE comment_ID = '$comment->comment_ID'");
        }
    }

    // Remove extraneous backslashes.
    $links = $wpdb->get_results("SELECT link_id, link_name, link_description FROM $wpdb->links");
    if ($links) {
        foreach($links as $link) {
            $link_name = addslashes(deslash($link->link_name));
            $link_description = addslashes(deslash($link->link_description));
            $wpdb->query("UPDATE $wpdb->links SET link_name = '$link_name', link_description = '$link_description' WHERE link_id = '$link->link_id'");
        }
    }

    // The "paged" option for what_to_show is no more.
    if ($wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name = 'what_to_show'") == 'paged') {
        $wpdb->query("UPDATE $wpdb->options SET option_value = 'posts' WHERE option_name = 'what_to_show'");
    }

    $active_plugins = __get_option('active_plugins');

    // If plugins are not stored in an array, they're stored in the old
    // newline separated format.  Convert to new format.
    if ( !is_array( $active_plugins ) ) {
        $active_plugins = explode("\n", trim($active_plugins));
        update_option('active_plugins', $active_plugins);
    }

    // Obsolete tables
    $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optionvalues');
    $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiontypes');
    $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroups');
    $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroup_options');

    // Update comments table to use comment_type
    $wpdb->query("UPDATE $wpdb->comments SET comment_type='trackback', comment_content = REPLACE(comment_content, '<trackback />', '') WHERE comment_content LIKE '<trackback />%'");
    $wpdb->query("UPDATE $wpdb->comments SET comment_type='pingback', comment_content = REPLACE(comment_content, '<pingback />', '') WHERE comment_content LIKE '<pingback />%'");

    // Some versions have multiple duplicate option_name rows with the same values
    $options = $wpdb->get_results("SELECT option_name, COUNT(option_name) AS dupes FROM `$wpdb->options` GROUP BY option_name");
    foreach ( $options as $option ) {
        if ( 1 != $option->dupes ) { // Could this be done in the query?
            $limit = $option->dupes - 1;
            $dupe_ids = $wpdb->get_col("SELECT option_id FROM $wpdb->options WHERE option_name = '$option->option_name' LIMIT $limit");
            $dupe_ids = join($dupe_ids, ',');
            $wpdb->query("DELETE FROM $wpdb->options WHERE option_id IN ($dupe_ids)");
        }
    }

    make_site_theme();
}

function upgrade_160_helper( $users ) {
    global $wpdb;

    populate_roles_160();

    foreach ( $users as $user_details ) :
        $user = $wpdb->get_results("SELECT * FROM $wpdb->users WHERE ID = '" . $user_details[ 'user_id' ] . "'");
        if ( !empty( $user->user_firstname ) )
            update_usermeta( $user->ID, 'first_name', $wpdb->escape($user->user_firstname) );
        if ( !empty( $user->user_lastname ) )
            update_usermeta( $user->ID, 'last_name', $wpdb->escape($user->user_lastname) );
        if ( !empty( $user->user_nickname ) )
            update_usermeta( $user->ID, 'nickname', $wpdb->escape($user->user_nickname) );
        if ( !empty( $user->user_level ) )
            update_usermeta( $user->ID, $wpdb->prefix . 'user_level', $user->user_level );
        if ( !empty( $user->user_icq ) )
            update_usermeta( $user->ID, 'icq', $wpdb->escape($user->user_icq) );
        if ( !empty( $user->user_aim ) )
            update_usermeta( $user->ID, 'aim', $wpdb->escape($user->user_aim) );
        if ( !empty( $user->user_msn ) )
            update_usermeta( $user->ID, 'msn', $wpdb->escape($user->user_msn) );
        if ( !empty( $user->user_yim ) )
            update_usermeta( $user->ID, 'yim', $wpdb->escape($user->user_icq) );
        if ( !empty( $user->user_description ) )
            update_usermeta( $user->ID, 'description', $wpdb->escape($user->user_description) );

        if ( isset( $user->user_idmode ) ):
            $idmode = $user->user_idmode;
            if ($idmode == 'nickname') $id = $user->user_nickname;
            if ($idmode == 'login') $id = $user->user_login;
            if ($idmode == 'firstname') $id = $user->user_firstname;
            if ($idmode == 'lastname') $id = $user->user_lastname;
            if ($idmode == 'namefl') $id = $user->user_firstname.' '.$user->user_lastname;
            if ($idmode == 'namelf') $id = $user->user_lastname.' '.$user->user_firstname;
            if (!$idmode) $id = $user->user_nickname;
            $id