root/trunk/wp-admin/import/dotclear.php

<?php
/*
 * DotClear import plugin
 * by Thomas Quinot - http://thomas.quinot.org/
 */

/**
    Add These Functions to make our lives easier
**/

if(!function_exists('get_comment_count'))
{
    function get_comment_count($post_ID)
    {
        global $wpdb;
        return $wpdb->get_var( $wpdb->prepare("SELECT count(*) FROM $wpdb->comments WHERE comment_post_ID = %d", $post_ID) );
    }
}

if(!function_exists('link_exists'))
{
    function link_exists($linkname)
    {
        global $wpdb;
        return $wpdb->get_var( $wpdb->prepare("SELECT link_id FROM $wpdb->links WHERE link_name = %s", $linkname) );
    }
}

/*
 Identify UTF-8 text
 Taken from http://www.php.net/manual/fr/function.mb-detect-encoding.php#50087
*/
//
//    utf8 encoding validation developed based on Wikipedia entry at:
//    http://en.wikipedia.org/wiki/UTF-8
//
//    Implemented as a recursive descent parser based on a simple state machine
//    copyright 2005 Maarten Meijer
//
//    This cries out for a C-implementation to be included in PHP core
//

function valid_1byte($char) {
    if(!is_int($char)) return false;
        return ($char & 0x80) == 0x00;
}

function valid_2byte($char) {
    if(!is_int($char)) return false;
        return ($char & 0xE0) == 0xC0;
}

function valid_3byte($char) {
    if(!is_int($char)) return false;
        return ($char & 0xF0) == 0xE0;
}

function valid_4byte($char) {
    if(!is_int($char)) return false;
        return ($char & 0xF8) == 0xF0;
}

function valid_nextbyte($char) {
    if(!is_int($char)) return false;
        return ($char & 0xC0) == 0x80;
}

function valid_utf8($string) {
    $len = strlen($string);
    $i = 0;
    while( $i < $len ) {
        $char = ord(substr($string, $i++, 1));
        if(valid_1byte($char)) {    // continue
            continue;
        } else if(valid_2byte($char)) { // check 1 byte
            if(!valid_nextbyte(ord(substr($string, $i++, 1))))
                return false;
        } else if(valid_3byte($char)) { // check 2 bytes
            if(!valid_nextbyte(ord(substr($string, $i++, 1))))
                return false;
            if(!valid_nextbyte(ord(substr($string, $i++, 1))))
                return false;
        } else if(valid_4byte($char)) { // check 3 bytes
            if(!valid_nextbyte(ord(substr($string, $i++, 1))))
                return false;
            if(!valid_nextbyte(ord(substr($string, $i++, 1))))
                return false;
            if(!valid_nextbyte(ord(substr($string, $i++, 1))))
                return false;
        } // goto next char
    }
    return true; // done
}

function csc ($s) {
    if (valid_utf8 ($s)) {
        return $s;
    } else {
        return iconv(get_option ("dccharset"),"UTF-8",$s);
    }
}

function textconv ($s) {
    return csc (preg_replace ('|(?<!<br />)\s*\n|', ' ', $s));
}

/**
    The Main Importer Class
**/
class Dotclear_Import {

    function header()
    {
        echo '<div class="wrap">';
        echo '<h2>'.__('Import DotClear').'</h2>';
        echo '<p>'.__('Steps may take a few minutes depending on the size of your database. Please be patient.').'</p>';
    }

    function footer()
    {
        echo '</div>';
    }

    function greet()
    {
        echo '<div class="narrow"><p>'.__('Howdy! This importer allows you to extract posts from a DotClear database into your blog.  Mileage may vary.').'</p>';
        echo '<p>'.__('Your DotClear Configuration settings are as follows:').'</p>';
        echo '<form action="admin.php?import=dotclear&amp;step=1" method="post">';
        wp_nonce_field('import-dotclear');
        $this->db_form();
        echo '<p class="submit"><input type="submit" name="submit" value="'.attribute_escape(__('Import Categories')).'" /></p>';
        echo '</form></div>';
    }

    function get_dc_cats()
    {
        global $wpdb;
        // General Housekeeping
        $dcdb = new wpdb(get_option('dcuser'), get_option('dcpass'), get_option('dcname'), get_option('dchost'));
        set_magic_quotes_runtime(0);
        $dbprefix = get_option('dcdbprefix');

        // Get Categories
        return $dcdb->get_results('SELECT * FROM '.$dbprefix.'categorie', ARRAY_A);
    }

    function get_dc_users()
    {
        global $wpdb;
        // General Housekeeping
        $dcdb = new wpdb(get_option('dcuser'), get_option('dcpass'), get_option('dcname'), get_option('dchost'));
        set_magic_quotes_runtime(0);
        $dbprefix = get_option('dcdbprefix');

        // Get Users

        return $dcdb->get_results('SELECT * FROM '.$dbprefix.'user', ARRAY_A);
    }

    function get_dc_posts()
    {
        // General Housekeeping
        $dcdb = new wpdb(get_option('dcuser'), get_option('dcpass'), get_option('dcname'), get_option('dchost'));
        set_magic_quotes_runtime(0);
        $dbprefix = get_option('dcdbprefix');

        // Get Posts
        return $dcdb->get_results('SELECT '.$dbprefix.'post.*, '.$dbprefix.'categorie.cat_libelle_url AS post_cat_name
                        FROM '.$dbprefix.'post INNER JOIN '.$dbprefix.'categorie
                        ON '.$dbprefix.'post.cat_id = '.$dbprefix.'categorie.cat_id', ARRAY_A);
    }

    function get_dc_comments()
    {
        global $wpdb;
        // General Housekeeping
        $dcdb = new wpdb(get_option('dcuser'), get_option('dcpass'), get_option('dcname'), get_option('dchost'));
        set_magic_quotes_runtime(0);
        $dbprefix = get_option('dcdbprefix');

        // Get Comments
        return $dcdb->get_results('SELECT * FROM '.$dbprefix.'comment', ARRAY_A);
    }

    function get_dc_links()
    {
        //General Housekeeping
        $dcdb = new wpdb(get_option('dcuser'), get_option('dcpass'), get_option('dcname'), get_option('dchost'));
        set_magic_quotes_runtime(0);
        $dbprefix = get_option('dcdbprefix');

        return $dcdb->get_results('SELECT * FROM '.$dbprefix.'link ORDER BY position', ARRAY_A);
    }

    function cat2wp($categories='')
    {
        // General Housekeeping
        global $wpdb;
        $count = 0;
        $dccat2wpcat = array();
        // Do the Magic
        if(is_array($categories))
        {
            echo '<p>'.__('Importing Categories...').'<br /><br /></p>';
            foreach ($categories as $category)
            {
                $count++;
                extract($category);

                // Make Nice Variables
                $name = $wpdb->escape($cat_libelle_url);
                $title = $wpdb->escape(csc ($cat_libelle));
                $desc = $wpdb->escape(csc ($cat_desc));

                if($cinfo = category_exists($name))
                {
                    $ret_id = wp_insert_category(array('cat_ID' => $cinfo, 'category_nicename' => $name, 'cat_name' => $title, 'category_description' => $desc));
                }
                else
                {
                    $ret_id = wp_insert_category(array('category_nicename' => $name, 'cat_name' => $title, 'category_description' => $desc));
                }
                $dccat2wpcat[$id] = $ret_id;
            }

            // Store category translation for future use
            add_option('dccat2wpcat',$dccat2wpcat);
            echo '<p>'.sprintf(__ngettext('Done! <strong>%1$s</strong> category imported.', 'Done! <strong>%1$s</strong> categories imported.', $count), $count).'<br /><br /></p>';
            return true;
        }
        echo __('No Categories to Import!');
        return false;
    }

    function users2wp($users='')
    {
        // General Housekeeping
        global $wpdb;
        $count = 0;
        $dcid2wpid = array();

        // Midnight Mojo
        if(is_array($users))
        {
            echo '<p>'.__('Importing Users...').'<br /><br /></p>';
            foreach($users as $user)
            {
                $count++;
                extract($user);

                // Make Nice Variables
                $name = $wpdb->escape(csc ($name));
                $RealName = $wpdb->escape(csc ($user_pseudo));

                if($uinfo = get_userdatabylogin($name))
                {

                    $ret_id = wp_insert_user(array(
                                'ID'        => $uinfo->ID,
                                'user_login'    => $user_id,
                                'user_nicename'    => $Realname,
                                'user_email'    => $user_email,
                                'user_url'    => 'http://',
                                'display_name'    => $Realname)
                                );
                }
                else
                {
                    $ret_id = wp_insert_user(array(
                                'user_login'    => $user_id,
                                'user_nicename'    => csc ($user_pseudo),
                                'user_email'    => $user_email,
                                'user_url'    => 'http://',
                                'display_name'    => $Realname)
                                );
                }
                $dcid2wpid[$user_id] = $ret_id;

                // Set DotClear-to-WordPress permissions translation

                // Update Usermeta Data
                $user = new WP_User($ret_id);
                $wp_perms = $user_level + 1;
                if(10 == $wp_perms) { $user->set_role('administrator'); }
                else if(9  == $wp_perms) { $user->set_role('editor'); }
                else if(5  <= $wp_perms) { $user->set_role('editor'); }
                else if(4  <= $wp_perms) { $user->set_role('author'); }
                else if(3  <= $wp_perms) { $user->set_role('contributor'); }
                else if(2  <= $wp_perms) { $user->set_role('contributor'); }
                else                     { $user->set_role('subscriber'); }

                update_usermeta( $ret_id, 'wp_user_level', $wp_perms);
                update_usermeta( $ret_id, 'rich_editing', 'false');
                update_usermeta( $ret_id, 'first_name', csc ($user_prenom));
                update_usermeta( $ret_id, 'last_name', csc ($user_nom));
            }// End foreach($users as $user)

            // Store id translation array for future use
            add_option('dcid2wpid',$dcid2wpid);


            echo '<p>'.sprintf(__('Done! <strong>%1$s</strong> users imported.'), $count).'<br /><br /></p>';
            return true;
        }// End if(is_array($users)

        echo __('No Users to Import!');
        return false;

    }// End function user2wp()

    function posts2wp($posts='')
    {
        // General Housekeeping
        global $wpdb;
        $count = 0;
        $dcposts2wpposts = array();
        $cats = array();

        // Do the Magic
        if(is_array($posts))
        {
            echo '<p>'.__('Importing Posts...').'<br /><br /></p>';
            foreach($posts as $post)
            {
                $count++;
                extract($post);

                // Set DotClear-to-WordPress status translation
                $stattrans = array(0 => 'draft', 1 => 'publish');
                $comment_status_map = array (0 => 'closed', 1 => 'open');

                //Can we do this more efficiently?
                $uinfo = ( get_userdatabylogin( $user_id ) ) ? get_userdatabylogin( $user_id ) : 1;
                $authorid = ( is_object( $uinfo ) ) ? $uinfo->ID : $uinfo ;

                $Title = $wpdb->escape(csc ($post_titre));
                $post_content = textconv ($post_content);
                $post_excerpt = "";
                if ($post_chapo != "") {
                    $post_excerpt = textconv ($post_chapo);
                    $post_content = $post_excerpt ."\n<!--more-->\n".$post_content;
                }
                $post_excerpt = $wpdb->escape ($post_excerpt);
                $post_content = $wpdb->escape ($post_content);
                $post_status = $stattrans[$post_pub];

                // Import Post data into WordPress

                if($pinfo = post_exists($Title,$post_content))
                {
                    $ret_id = wp_insert_post(array(
                            'ID'            => $pinfo,
                            'post_author'        => $authorid,
                            'post_date'        => $post_dt,
                            'post_date_gmt'        => $post_dt,
                            'post_modified'        => $post_upddt,
                            'post_modified_gmt'    => $post_upddt,
                            'post_title'        => $Title,
                            'post_content'        => $post_content,
                            'post_excerpt'        => $post_excerpt,
                            'post_status'        => $post_status,
                            'post_name'        => $post_titre_url,
                            'comment_status'    => $comment_status_map[$post_open_comment],
                            'ping_status'        => $comment_status_map[$post_open_tb],
                            'comment_count'        => $post_nb_comment + $post_nb_trackback)
                            );
                    if ( is_wp_error( $ret_id ) )
                        return $ret_id;
                }
                else
                {
                    $ret_id = wp_insert_post(array(
                            'post_author'        => $authorid,
                            'post_date'        => $post_dt,
                            'post_date_gmt'        => $post_dt,
                            'post_modified'        => $post_modified_gmt,
                            'post_modified_gmt'    => $post_modified_gmt,
                            'post_title'        => $Title,
                            'post_content'        => $post_content,
                            'post_excerpt'        => $post_excerpt,
                            'post_status'        => $post_status,
                            'post_name'        => $post_titre_url,
                            'comment_status'    => $comment_status_map[$post_open_comment],
                            'ping_status'        => $comment_status_map[$post_open_tb],
                            'comment_count'        => $post_nb_comment + $post_nb_trackback)
                            );
                    if ( is_wp_error( $ret_id ) )
                        return $ret_id;
                }
                $dcposts2wpposts[$post_id] = $ret_id;

                // Make Post-to-Category associations
                $cats = array();
                $category1 = get_category_by_slug($post_cat_name);
                $category1 = $category1->term_id;

                if($cat1 = $category1) { $cats[1] = $cat1; }

                if(!empty($cats)) { wp_set_post_categories($ret_id, $cats); }
            }
        }
        // Store ID translation for later use
        add_option('dcposts2wpposts',$dcposts2wpposts);

        echo '<p>'.sprintf(__('Done! <strong>%1$s</strong> posts imported.'), $count).'<br /><br /></p>';
        return true;
    }

    function comments2wp($comments='')
    {
        // General Housekeeping
        global $wpdb;
        $count = 0;
        $dccm2wpcm = array();
        $postarr = get_option('dcposts2wpposts');

        // Magic Mojo
        if(is_array($comments))
        {
            echo '<p>'.__('Importing Comments...').'<br /><br /></p>';
            foreach($comments as $comment)
            {
                $count++;
                extract($comment);

                // WordPressify Data
                $comment_ID = (int) ltrim($comment_id, '0');
                $comment_post_ID = (int) $postarr[$post_id];
                $comment_approved = "$comment_pub";
                $name = $wpdb->escape(csc ($comment_auteur));
                $email = $wpdb->escape($comment_email);
                $web = "http://".$wpdb->escape($comment_site);
                $message = $wpdb->escape(textconv ($comment_content));

                if($cinfo = comment_exists($name, $comment_dt))
                {
                    // Update comments
                    $ret_id = wp_update_comment(array(
                            'comment_ID'        => $cinfo,
                            'comment_post_ID'    => $comment_post_ID,
                            'comment_author'    => $name,
                            'comment_author_email'    => $email,
                            'comment_author_url'    => $web,
                            'comment_author_IP'    => $comment_ip,
                            'comment_date'        => $comment_dt,
                            'comment_date_gmt'    => $comment_dt,
                            'comment_content'    => $message,
                            'comment_approved'    => $comment_approved)
                            );
                }
                else
                {
                    // Insert comments
                    $ret_id = wp_insert_comment(array(
                            'comment_post_ID'    =