Validate IP Address During Authentication – For A Given User

  • avberkel

    (@avberkel)


    4 years, 10 months ago

    I want a specific user only logging in from a specific IP-adres.
    See the code below. I put it in the functions.php from my child-theme
    It worked perfect before installing wpcerber.
    Can some one advise me the code to work with wpcerber

    /**
    * Validate IP Address During Authentication – For A Given User
    */
    add_filter( ‘wp_authenticate’, function( $user )
    {
    // Adjust to your needs:
    $allowed_user_ip = ‘84.86.5.72’;
    $ip_restricted_user_id = 9;

    // Current user’s IP address
    $current_user_ip = isset( $_SERVER[‘REMOTE_ADDR’] ) ? $_SERVER[‘REMOTE_ADDR’] : null;

    // Nothing to do for valid IP address
    if( $current_user_ip === $allowed_user_ip )
    return $user;

    // Nothing to do for users that are not IP restricted
    if(
    $user instanceof \WP_User
    && $user->ID > 0
    && $ip_restricted_user_id != $user->ID
    )
    return $user;

    // Add an ‘Invalid IP address’ error
    if( is_wp_error( $user ) )
    $user->add(
    ‘invalid_ip’,
    sprintf(
    ‘%s: %s’,
    esc_html__( ‘ERROR’, ‘mydomain’ ),
    esc_html__( ‘IP address is invalid.’, ‘mydomain’ )
    )
    );
    // Create a new ‘Invalid IP address’ error
    else
    $user = new WP_Error(
    ‘invalid_ip’,
    sprintf(
    ‘%s: %s’,
    esc_html__( ‘ERROR’, ‘mydomain’ ),
    esc_html__( ‘IP address is invalid.’, ‘mydomain’ )
    )
    );

    return $user;
    }, 1);`

    • This topic was modified 4 years, 10 months ago by avberkel.

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