plugin

<?php

/*

    Plugin Name: WP User Control
    Plugin URI: http://oaktondata.com/wp-user-control/
    Version: 1.1.1
    Author: Bill Edgar
    Author URI: http://oaktondata.com
    Text Domain: wp-uc-widget
    Description: WP User Control adds a sidebar widget that allows a user to login, register, retrieve lost passwords, etc. without leaving a page/post within your site.
    Package: wp-uc-widget
    License: BSD New (3-CLause License)

    Copyright (c) 2012, Oakton Data LLC
    All rights reserved.

    Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

        * Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright
          notice, this list of conditions and the following disclaimer in the
          documentation and/or other materials provided with the distribution.
        * Neither the name of the Oakton Data LLC nor the
          names of its contributors may be used to endorse or promote products
          derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL Oakton Data LLC BE LIABLE FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    This is the main PHP class file for the WP User Control Widget plugin.

*/

// define constants
define( 'WP_USER_CONTROL_WIDGET_VERSION', '1.1' );
define( 'WP_USER_CONTROL_WIDGET_BASE_URL', network_site_url() );

// directory locations
define( 'WP_USER_CONTROL_WIDGET_DIR', plugin_dir_url(__FILE__) );
define( 'WP_USER_CONTROL_WIDGET_CSS', WP_USER_CONTROL_WIDGET_DIR . 'css/' );
define( 'WP_USER_CONTROL_WIDGET_INCLUDES', dirname(__FILE__) . '/' . 'inc/' );
define( 'WP_USER_CONTROL_WIDGET_JS', WP_USER_CONTROL_WIDGET_DIR . 'js/' );
define( 'WP_USER_CONTROL_WIDGET_HTML', WP_USER_CONTROL_WIDGET_DIR . 'html/' );

// php class files
define( 'WP_USER_CONTROL_WIDGET_SIDEBAR_CLASS', 'SidebarWidget' );
define( 'WP_USER_CONTROL_WIDGET_CLASS', 'WPUserControlWidget' );
define( 'WP_USER_CONTROL_WIDGET_EXCEPTION_CLASS', 'Exception' );
define( 'WP_USER_CONTROL_WIDGET_UTILITIES_CLASS', 'Utilities' );

// definition and configuration files
define( 'WP_USER_CONTROL_WIDGET_STYLE', 'style.css' );

// generic include method
function wp_uc__autoinclude( $class_name ) {
    try {
        include_once( WP_USER_CONTROL_WIDGET_INCLUDES . $class_name . '.php' );
    } catch ( Exception $e ) {
        echo "<p>" . $e->getMessage() . "</p>";
    }
}

// generic getter method
function wp_uc__get( $property, $obj ) { // generic getter
    if ( array_key_exists( $property, get_class_vars( get_class( $obj ) ) ) ) {
        return $obj->$property;
    } else {
        die("<p>$property does not exist in " . get_class( $obj ) . "</p>");
    }
}

// generic setter method
function wp_uc__set( $property, $value, $obj ) { // generic setter
    if ( array_key_exists( $property, get_class_vars( get_class( $obj ) ) ) ) {
        $obj->$property = $value;
    } else {
        die( "<p>$property does not exist in " . get_class( $obj ) . "</p>" );
    }
}

// generic toString method
function wp_uc__toString( $obj ) { // generic object toString
    $attributes = get_class_vars( get_class( $obj ) );
    $str = 'Class = ' . get_class( $obj ) . '\n';
    foreach ( $attributes as $name => $value ) {
        $str .= $name . ' = ' . $value . '\n';
    }
    return $str;
}

if ( !class_exists( 'wp_uc_widget' ) ) {

    // wp_uc_widget class
    class wp_uc_widget {

        // public constructor method
        function wp_uc_widget() {
            $this->__construct();
        }

        // hidden constructor method
        function __construct() {

            wp_uc__autoinclude( WP_USER_CONTROL_WIDGET_EXCEPTION_CLASS );
            wp_uc__autoinclude( WP_USER_CONTROL_WIDGET_SIDEBAR_CLASS ); // must be loaded first... base class
            wp_uc__autoinclude( WP_USER_CONTROL_WIDGET_UTILITIES_CLASS );
            wp_uc__autoinclude( WP_USER_CONTROL_WIDGET_CLASS );

            // verify we're on admin pages
            if ( is_admin() ) {

                // runs when plugin is activated
                register_activation_hook( __FILE__, array( &$this, 'activate' ) );
                // runs when plugin is deactivated
                register_deactivation_hook( __FILE__, array( &$this, 'deactivate' ) );

            }

        }

        // activate method
        function activate() {
            // call setup function
            $this->setup();
        }

        // deactivate method
        function deactivate() {

            // remove action and filter hooks
            remove_action(
                $tag = 'wp_login_failed',
                $function_to_remove = 'wp_user_control_login_fail_action',
                $priority = 10,
                $accepted_args = 1
                ); // remove action hook for failed login

            remove_filter(
                $tag = 'registration_errors',
                $function_to_remove = 'wp_user_control_registration_errors_filter',
                $priority = 10,
                $accepted_args = 3
                ); // remove filter for registration errors

            remove_filter(
                $tag = 'login_url',
                $function_to_remove = 'wp_user_control_login_url_filter',
                $priority = 10,
                $accepted_args = 2
                ); // remove filter for custom login url

        }

        // setup method
        function setup() {

        }

        // uninstall method
        function uninstall() {
            if ( !defined( 'ABSPATH' ) || !defined( 'WP_UNINSTALL_PLUGIN' ) ) {
                exit();
            }
        }

        // validate method
        function validate( $rawinput ) {
            return $rawinput;
        }

    }

} // end class wp_uc_widget

// instantiate new wp_uc_widget object
if ( class_exists( 'wp_uc_widget' ) ) {
    new wp_uc_widget();
}
?>