Defined (1)

The class is defined in the following location(s).

/wp-admin/includes/class-wp-importer.php  

class WP_Importer { 
    /** 
     * Class Constructor 
     * 
     */ 
    public function __construct() {} 
 
    /** 
     * Returns array with imported permalinks from WordPress database 
     * 
     * @global wpdb $wpdb WordPress database abstraction object. 
     * 
     * @param string $importer_name 
     * @param string $bid 
     * @return array 
     */ 
    public function get_imported_posts( $importer_name, $bid ) { 
        global $wpdb; 
 
        $hashtable = array(); 
 
        $limit = 100; 
        $offset = 0; 
 
        // Grab all posts in chunks 
        do { 
            $meta_key = $importer_name . '_' . $bid . '_permalink'; 
            $sql = $wpdb->prepare( "SELECT post_id, meta_value FROM $wpdb->postmeta WHERE meta_key = '%s' LIMIT %d, %d", $meta_key, $offset, $limit ); 
            $results = $wpdb->get_results( $sql ); 
 
            // Increment offset 
            $offset = ( $limit + $offset ); 
 
            if ( !empty( $results ) ) { 
                foreach ( $results as $r ) { 
                    // Set permalinks into array 
                    $hashtable[$r->meta_value] = intval( $r->post_id ); 
                } 
            } 
        } while ( count( $results ) == $limit ); 
 
        // Unset to save memory. 
        unset( $results, $r ); 
 
        return $hashtable; 
    } 
 
    /** 
     * Return count of imported permalinks from WordPress database 
     * 
     * @global wpdb $wpdb WordPress database abstraction object. 
     * 
     * @param string $importer_name 
     * @param string $bid 
     * @return int 
     */ 
    public function count_imported_posts( $importer_name, $bid ) { 
        global $wpdb; 
 
        $count = 0; 
 
        // Get count of permalinks 
        $meta_key = $importer_name . '_' . $bid . '_permalink'; 
        $sql = $wpdb->prepare( "SELECT COUNT( post_id ) AS cnt FROM $wpdb->postmeta WHERE meta_key = '%s'", $meta_key ); 
 
        $result = $wpdb->get_results( $sql ); 
 
        if ( !empty( $result ) ) 
            $count = intval( $result[0]->cnt ); 
 
        // Unset to save memory. 
        unset( $results ); 
 
        return $count; 
    } 
 
    /** 
     * Set array with imported comments from WordPress database 
     * 
     * @global wpdb $wpdb WordPress database abstraction object. 
     * 
     * @param string $bid 
     * @return array 
     */ 
    public function get_imported_comments( $bid ) { 
        global $wpdb; 
 
        $hashtable = array(); 
 
        $limit = 100; 
        $offset = 0; 
 
        // Grab all comments in chunks 
        do { 
            $sql = $wpdb->prepare( "SELECT comment_ID, comment_agent FROM $wpdb->comments LIMIT %d, %d", $offset, $limit ); 
            $results = $wpdb->get_results( $sql ); 
 
            // Increment offset 
            $offset = ( $limit + $offset ); 
 
            if ( !empty( $results ) ) { 
                foreach ( $results as $r ) { 
                    // Explode comment_agent key 
                    list ( $ca_bid, $source_comment_id ) = explode( '-', $r->comment_agent ); 
                    $source_comment_id = intval( $source_comment_id ); 
 
                    // Check if this comment came from this blog 
                    if ( $bid == $ca_bid ) { 
                        $hashtable[$source_comment_id] = intval( $r->comment_ID ); 
                    } 
                } 
            } 
        } while ( count( $results ) == $limit ); 
 
        // Unset to save memory. 
        unset( $results, $r ); 
 
        return $hashtable; 
    } 
 
    /** 
     * 
     * @param int $blog_id 
     * @return int|void 
     */ 
    public function set_blog( $blog_id ) { 
        if ( is_numeric( $blog_id ) ) { 
            $blog_id = (int) $blog_id; 
        } else { 
            $blog = 'http://' . preg_replace( '#^https?://#', '', $blog_id ); 
            if ( ( !$parsed = parse_url( $blog ) ) || empty( $parsed['host'] ) ) { 
                fwrite( STDERR, "Error: can not determine blog_id from $blog_id\n" ); 
                exit(); 
            } 
            if ( empty( $parsed['path'] ) ) { 
                $parsed['path'] = '/'; 
            } 
            $blogs = get_sites( array( 'domain' => $parsed['host'], 'number' => 1, 'path' => $parsed['path'] ) ); 
            if ( ! $blogs ) { 
                fwrite( STDERR, "Error: Could not find blog\n" ); 
                exit(); 
            } 
            $blog = array_shift( $blogs ); 
            $blog_id = (int) $blog->blog_id; 
        } 
 
        if ( function_exists( 'is_multisite' ) ) { 
            if ( is_multisite() ) 
                switch_to_blog( $blog_id ); 
        } 
 
        return $blog_id; 
    } 
 
    /** 
     * 
     * @param int $user_id 
     * @return int|void 
     */ 
    public function set_user( $user_id ) { 
        if ( is_numeric( $user_id ) ) { 
            $user_id = (int) $user_id; 
        } else { 
            $user_id = (int) username_exists( $user_id ); 
        } 
 
        if ( !$user_id || !wp_set_current_user( $user_id ) ) { 
            fwrite( STDERR, "Error: can not find user\n" ); 
            exit(); 
        } 
 
        return $user_id; 
    } 
 
    /** 
     * Sort by strlen, longest string first 
     * 
     * @param string $a 
     * @param string $b 
     * @return int 
     */ 
    public function cmpr_strlen( $a, $b ) { 
        return strlen( $b ) - strlen( $a ); 
    } 
 
    /** 
     * GET URL 
     * 
     * @param string $url 
     * @param string $username 
     * @param string $password 
     * @param bool   $head 
     * @return array 
     */ 
    public function get_page( $url, $username = '', $password = '', $head = false ) { 
        // Increase the timeout 
        add_filter( 'http_request_timeout', array( $this, 'bump_request_timeout' ) ); 
 
        $headers = array(); 
        $args = array(); 
        if ( true === $head ) 
            $args['method'] = 'HEAD'; 
        if ( !empty( $username ) && !empty( $password ) ) 
            $headers['Authorization'] = 'Basic ' . base64_encode( "$username:$password" ); 
 
        $args['headers'] = $headers; 
 
        return wp_safe_remote_request( $url, $args ); 
    } 
 
    /** 
     * Bump up the request timeout for http requests 
     * 
     * @param int $val 
     * @return int 
     */ 
    public function bump_request_timeout( $val ) { 
        return 60; 
    } 
 
    /** 
     * Check if user has exceeded disk quota 
     * 
     * @return bool 
     */ 
    public function is_user_over_quota() { 
        if ( function_exists( 'upload_is_user_over_quota' ) ) { 
            if ( upload_is_user_over_quota() ) { 
                return true; 
            } 
        } 
 
        return false; 
    } 
 
    /** 
     * Replace newlines, tabs, and multiple spaces with a single space 
     * 
     * @param string $string 
     * @return string 
     */ 
    public function min_whitespace( $string ) { 
        return preg_replace( '|[\r\n\t ]+|', ' ', $string ); 
    } 
 
    /** 
     * Reset global variables that grow out of control during imports 
     * 
     * @global wpdb  $wpdb 
     * @global array $wp_actions 
     */ 
    public function stop_the_insanity() { 
        global $wpdb, $wp_actions; 
        // Or define( 'WP_IMPORTING', true ); 
        $wpdb->queries = array(); 
        // Reset $wp_actions to keep it from growing out of control 
        $wp_actions = array(); 
    } 
}