wpmu-plugin-manager.php

<?php
/*
Plugin Name: WPMU Plugin Manager
Plugin URI: http://wordpress.org/plugins/wpmu-plugin-manager/
Description: Manage plugin access permissions across your entire multisite network.
Version: 1.1-beta
Author: WP-Cloud
Author URI: http://dev.wp-cloud.org
License: GPLv2
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: wpmu-plugin-manager
Domain Path: /languages
Network: true

	WPMU Plugin Manager
	based on/forked from Multisite Plugin Manager by UglyRobot Web Development (http://uglyrobot.com)

	Copyright (C) 2013-2019 WP-Cloud (http://dev.wp-cloud.org)

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License, version 2, as
	published by the Free Software Foundation.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
/**
 * @author    WP-Cloud <code@wp-cloud.org>
 * @copyright Copyright (c) 2013-2019, WP-Cloud
 * @license   http://www.gnu.org/licenses/gpl-2.0.html GPLv2
 * @package   WPC\PluginManager
 * @version   1.1-beta
 */

//avoid direct calls to this file
if ( !defined( 'ABSPATH' ) ) {
	header( 'Status: 403 Forbidden' );
	header( 'HTTP/1.1 403 Forbidden' );
	exit();
}

/**
 * Main class to run the plugin
 * 
 * @since	1.0.0
 */
class WPC_PluginManager {

	/**
	 * Current version of the plugin.
	 *
	 * @since	1.0.0
	 * @access	public
	 * @var		string	$version
	 */
	public $version = '1.1-beta';
	
	/**
	 * Hold the minimum permission to access plugin
	 *
	 * @since	1.0.0
	 * @access	public
	 * @var		string	$permission
	 */
	public $permission;
	
	/**
	 * Constructor. Hooks all interactions to initialize the class.
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see	add_action()
	 * @see	add_filter()
	 * @see	is_admin()
	 * @see apply_filters()
	 *
	 * @return	void
	 */
	public function __construct() {
		
		if ( ! is_admin() ) {
			return;
		}
		
		$this->permission = apply_filters( 'wpc_pm_cap', 'manage_network_plugins' );
		
		add_action( 'plugins_loaded', array( $this, 'load_plugin_textdomain' ) );
		add_action( 'network_admin_menu', array( $this, 'network_admin_menu' ) );

		add_action( 'wpmu_new_blog', array( $this, 'new_blog' ), 50 );
		add_action( 'wpmueditblogaction', array( $this, 'blog_options_form' ) );
		add_action( 'wpmu_update_blog_options', array( $this, 'blog_options_form_process' ) );

		add_action( 'admin_init', array( $this, 'remove_plugin_update_row' ) );
		add_filter( 'plugin_row_meta' , array( $this, 'remove_plugin_meta' ), 10, 2 );

		if ( ! ( defined( 'WP_CLI' ) && WP_CLI ) ) {
			add_filter( 'all_plugins', array( $this, 'remove_plugins' ) );
		}

		add_filter( 'plugin_action_links', array( $this, 'action_links' ), 10, 4 );
		// add_filter( 'active_plugins', array( $this, 'check_activated' ) );

	} // END __construct()

	/**
	 * Add admin menu item
	 *
	 * @since	0.1.0
	 * @access	public
	 *
	 * @see		add_action()
	 * @see		add_submenu_page()
	 * @action	network_admin_menu
	 *
	 * @return	void
	 */
	public function network_admin_menu() {
		
		add_submenu_page(
			'plugins.php',
			__( 'Manage Plugins', 'wpmu-plugin-manager' ),
			__( 'Manage', 'wpmu-plugin-manager' ),
			$this->permission,
			'manage',
			array( $this, 'admin_page' )
		);
		
		add_action( 'load-plugins_page_manage', array( $this, 'help_tabs' ) );

	} // END network_admin_menu()

	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		get_current_screen()
	 * @action	load-plugins_page_manage
	 *
	 * @return	string
 	 */
	public function help_tabs() {
		
		$screen = get_current_screen();
		$screen->add_help_tab(
			array(
				'id'        => 'wpc-plugin-manager_options',
				'title'     => __( 'Options', 'wpmu-plugin-manager' ),
				'callback'  => array( $this, 'option_tab')
			)
		);
		
	} // END help_tabs()
	
	/**
	 * @todo
	 *
	 * @since	0.1.0
	 * @access	public
	 *
	 * @see		_e()
	 *
	 * @return	string
	 */
	public function option_tab() { ?>
		<p>
			<strong><?php _e( 'Auto Activation', 'wpmu-plugin-manager' ); ?></strong>
			- <?php _e( 'When auto activation is on for a plugin, newly created blogs will have that plugin activated automatically. This does not affect existing blogs.', 'wpmu-plugin-manager' ); ?>
		</p>
		<p>
			<strong><?php _e( 'User Control', 'wpmu-plugin-manager' ); ?></strong>
			- <?php _e( 'When user control is enabled for a plugin, all users will be able to activate/deactivate the plugin through the <cite>Plugins</cite> menu. When you turn it off, users that have the plugin activated are grandfathered in, and will continue to have access until they deactivate it.', 'wpmu-plugin-manager' ); ?>
		</p>
		<p>
			<strong><?php _e( 'Mass Activation/Deactivation', 'wpmu-plugin-manager' ); ?></strong>
			- <?php _e( 'Mass activate and Mass deactivate buttons activate/deactivates the specified plugin for all blogs. This is different than the "Network Activate" option on the network plugins page, as users can later disable it and this only affects existing blogs. It also ignores the User Control option.', 'wpmu-plugin-manager' ); ?></p>
	<?php
	
	} // END option_tab()
	
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		_e()
	 * @see		current_user_can()
	 * @see		get_plugins()
	 * @see		get_site_option()
	 * @see		is_network_only_plugin()
	 * @see		is_plugin_active_for_network()
	 * @see		submit_button()
	 * @uses	self::process_form()
	 *
	 * @return	string
 	 */
	public function admin_page() {
		
		if ( ! current_user_can( $this->permission ) ) {
			die( 'Nice Try!' );
		}

		$this->process_form();
		?>
		<div class="wrap">
			<h1 class="wp-heading-inline"><?php _e( 'Plugin Management', 'wpmu-plugin-manager' ); ?></h1>
			<hr class="wp-header-end">
			<?php if ( isset( $_GET['updated'] ) ) { ?>
			<div id="message" class="updated notice is-dismissible"><p><?php _e( 'Settings saved.' ); ?></p></div>
			<?php } ?>
			<form action="plugins.php?page=manage&updated=true" method="post">
				<table class="wp-list-table widefat plugins" id="plugin-manager">
					<thead>
						<tr>
							<th><?php _e( 'Name', 'wpmu-plugin-manager' ); ?></th>
							<th><?php _e( 'Version', 'wpmu-plugin-manager' ); ?></th>
							<th><?php _e( 'Author', 'wpmu-plugin-manager' ); ?></th>
							<th title="<?php _e( 'Users may activate/deactivate', 'wpmu-plugin-manager' ); ?>">
								<?php _e( 'User Control', 'wpmu-plugin-manager' ); ?>
							</th>
                            <?php if ( $this->can_mass_process() ) { ?>
							<th>
								<?php _e( 'Mass Activate', 'wpmu-plugin-manager' ); ?>
							</th>
							<th>
								<?php _e( 'Mass Deactivate', 'wpmu-plugin-manager' ); ?>
							</th>
							<?php } ?>
						</tr>
					</thead>
					<tfoot>
						<tr>
							<th>
								<?php _e( 'Name', 'wpmu-plugin-manager' ); ?>
							</th>
							<th>
								<?php _e( 'Version', 'wpmu-plugin-manager' ); ?>
							</th>
							<th>
								<?php _e( 'Author', 'wpmu-plugin-manager' ); ?>
							</th>
							<th title="<?php _e( 'Users may activate/deactivate', 'wpmu-plugin-manager' ); ?>">
								<?php _e( 'User Control', 'wpmu-plugin-manager' ); ?>
							</th>
							<?php if ( $this->can_mass_process() ) { ?>
							<th>
								<?php _e( 'Mass Activate', 'wpmu-plugin-manager' ); ?>
							</th>
							<th>
								<?php _e( 'Mass Deactivate', 'wpmu-plugin-manager' ); ?>
							</th>
							<?php } ?>
						</tr>
					</tfoot>
					<?php
					$plugins		= get_plugins();
					$auto_activate	= (array)get_site_option( 'pm_auto_activate_list' );
					$user_control	= (array)get_site_option( 'pm_user_control_list' );

					foreach ( $plugins as $file => $p ) {

						//skip network plugins or network activated plugins
						if ( is_network_only_plugin( $file ) || is_plugin_active_for_network( $file ) ) {
							continue;
						}
					?>
					<tbody>	
						<tr>
							<td>
								<?php echo $p['Name']?>
							</td>
							<td>
								<?php echo $p['Version']?>
							</td>
							<td>
								<?php echo $p['Author']?>
							</td>
							<td>
								<?php
								echo '<select name="control[' . $file . ']" />'."\n";
								$u_checked		= in_array( $file, $user_control );
								$auto_checked	= in_array( $file, $auto_activate );

								if ( $u_checked ) {
									$n_opt = '';
									$s_opt = '';
									$a_opt = ' selected="yes"';
									$auto_opt = '';
								} else if ( $auto_checked ) {
									$n_opt = '';
									$s_opt = '';
									$a_opt = '';
									$auto_opt = ' selected="yes"';
								} else {
									$n_opt = ' selected="yes"';
									$s_opt = '';
									$a_opt = '';
									$auto_opt = '';
								}

								$opts = '<option value="none"' . $n_opt . '>' . __( 'None', 'wpmu-plugin-manager' ) . '</option>'."\n";
								$opts .= '<option value="all"' . $a_opt . '>' . __( 'All Users', 'wpmu-plugin-manager' ) . '</option>'."\n";
								$opts .= '<option value="auto"' . $auto_opt . '>' . __( 'Auto-Activate (All Users)', 'wpmu-plugin-manager' ) . '</option>'."\n";
								echo $opts.'</select>';
								?>
							</td>
							<?php if ( $this->can_mass_process() ) { ?>
							<td>
								<?php echo "<a href='plugins.php?page=manage&mass_activate=$file'>" . __( 'Activate All', 'wpmu-plugin-manager' ) . "</a>" ?>
							</td>
							<td>
								<?php echo "<a href='plugins.php?page=manage&mass_deactivate=$file'>" . __( 'Deactivate All', 'wpmu-plugin-manager' ) . "</a>" ?>
							</td>
							<?php } ?>
						</tr>
					</tbody>
				<?php } ?>
				</table>
				<?php submit_button(); ?>
			</form>
		</div>
			<?php
			
	} //end admin_page()

	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		current_user_can()
	 * @see		remove_all_actions()
	 * @action	plugin_row_meta
	 *
	 * @param	array	$plugin_meta
	 * @param	array	$plugin_file
	 * @return	array
 	 */
	public function remove_plugin_meta( $plugin_meta, $plugin_file ) {
		
		if ( current_user_can( $this->permission ) ) {
			
			return $plugin_meta;
			
		} else {
			
			remove_all_actions( "after_plugin_row_$plugin_file" );
			return array();
			
		}
		
	} // END remove_plugin_meta()
	
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		current_user_can()
	 * @see		remove_all_actions()
	 * @action	admin_init
	 *
	 * @return	void
 	 */
	function remove_plugin_update_row() {
		
		if ( !current_user_can( $this->permission ) ) {
			remove_all_actions( 'after_plugin_row' );
		}

	} // END remove_plugin_update_row()
	
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		update_site_option()
	 * @uses	self::mass_deactivate()
	 *
	 * @return	void
 	 */
	function process_form() {

	    if ( isset( $_GET['mass_activate'] ) ) {
			$plugin = $_GET['mass_activate'];
			$this->mass_activate($plugin);
		}
		
		if ( isset( $_GET['mass_deactivate'] ) ) {
			$plugin = $_GET['mass_deactivate'];
			$this->mass_deactivate( $plugin );
		}
		
		if ( isset( $_POST['control'] ) ) {
			
			//create blank arrays
			$user_control = array();
			$auto_activate = array();
			
			foreach ( $_POST['control'] as $plugin => $value ) {
				
				if ( $value == 'none' ) {
					//do nothing
				} else if ( $value == 'all' ) {
					$user_control[] = $plugin;
				} else if ( $value == 'auto' ) {
					$auto_activate[] = $plugin;
				}
				
			}
			
			update_site_option( 'pm_user_control_list', array_unique( $user_control ) );
			update_site_option( 'pm_auto_activate_list', array_unique( $auto_activate ) );

			//can't save blank value via update_site_option
			if ( ! $user_control ) {
				update_site_option( 'pm_user_control_list', 'EMPTY' );
			}

			if ( ! $auto_activate ) {
				update_site_option( 'pm_auto_activate_list', 'EMPTY' );
			}

		}
		
	} // END process_form()

	//options added to wpmu-blogs.php edit page. Overrides sitewide control settings for an individual blog.
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		__()
	 * @see		_e()
	 * @see		get_plugins()
	 * @see		get_blog_option()
	 * @see		is_network_only_plugin()
	 * @see		is_plugin_active_for_network()
	 * @action	blog_options_form
	 *
	 * @param	string	$blog_id
	 * @return	string
 	 */
	function blog_options_form( $blog_id ) {
		
		$plugins =			get_plugins();
		$override_plugins =	(array)get_blog_option( $blog_id, 'pm_plugin_override_list' );
		?>
		</table>
		<h3><?php _e( 'Plugin Override Options', 'wpmu-plugin-manager' ) ?></h3>
		<p style="padding:5px 10px 0 10px;margin:0;">
			<?php printf( __( 'Checked plugins here will be accessible to this site, overriding the sitewide %sPlugin Management%s settings. Uncheck to return to sitewide settings.', 'wpmu-plugin-manager' ), '<a href="plugins.php?page=manage">', '</a>' ); ?>
		</p>
		<table class="widefat" style="margin:10px;width:95%;">
		<thead>
			<tr>
				<th title="<?php _e( 'Blog users may activate/deactivate', 'wpmu-plugin-manager' ) ?>">
					<?php _e( 'User Control', 'wpmu-plugin-manager' ) ?>
				</th>
				<th>
					<?php _e( 'Name', 'wpmu-plugin-manager' ); ?>
				</th>
				<th>
					<?php _e( 'Version', 'wpmu-plugin-manager' ); ?>
				</th>
				<th>
					<?php _e( 'Author', 'wpmu-plugin-manager' ); ?>
				</th>
			</tr>
		</thead>
		<tfoot>
			<tr>
				<th title="<?php _e( 'Blog users may activate/deactivate', 'wpmu-plugin-manager' ) ?>">
					<?php _e( 'User Control', 'wpmu-plugin-manager' ) ?>
				</th>
				<th>
					<?php _e( 'Name', 'wpmu-plugin-manager' ); ?>
				</th>
				<th>
					<?php _e( 'Version', 'wpmu-plugin-manager' ); ?>
				</th>
				<th>
					<?php _e( 'Author', 'wpmu-plugin-manager' ); ?>
				</th>
			</tr>
		</tfoot>
		<?php
		foreach ( $plugins as $file => $p ) {
			//skip network plugins or network activated plugins
			if ( is_network_only_plugin( $file ) || is_plugin_active_for_network( $file ) ) {
				continue;
			}
			?>
			<tr>
				<td>
				<?php
					$checked = ( in_array( $file, $override_plugins ) ) ? 'checked="checked"' : '';
					echo '<label><input name="plugins[' . $file . ']" type="checkbox" value="1" ' . $checked . '/> ' . __( 'Enable', 'wpmu-plugin-manager' ) . '</label>';
				?>
				</td>
				<td>
					<?php echo $p['Name']?>
				</td>
				<td>
					<?php echo $p['Version']?>
				</td>
				<td>
					<?php echo $p['Author']?>
				</td>
			</tr>
			<?php
		}
		echo '</table>';
		
	} // END blog_options_form()

	//process options from wpmu-blogs.php edit page. Overrides sitewide control settings for an individual blog.
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		update_option()
	 * @action	wpmu_update_blog_options
	 *
	 * @return	void
 	 */
	public function blog_options_form_process() {
		
		$override_plugins = array();
		
		if ( is_array( $_POST['plugins'] ) ) {
			foreach ( (array)$_POST['plugins'] as $plugin => $value ) {
				$override_plugins[] = $plugin;
			}
			update_option( 'pm_plugin_override_list', $override_plugins );
		} else {
			update_option( 'pm_plugin_override_list', array() );
		}
		
	} // END blog_options_form_process()

	//activate on new blog
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		get_site_option()
	 * @see		switch_to_blog()
	 * @see		activate_plugins()
	 * @see		restore_current_blog()
	 * @action	wpmu_new_blog
	 *
	 * @param	string	$blog_id
	 * @return	void
 	 */
	function new_blog( $blog_id ) {
		
		require_once( ABSPATH . 'wp-admin/includes/plugin.php' );

		$auto_activate = (array)get_site_option( 'pm_auto_activate_list' );
		
        if ( count( $auto_activate ) && $auto_activate[0] != 'EMPTY' ) {
			
			switch_to_blog( $blog_id );
			activate_plugins( $auto_activate, '', false ); //silently activate any plugins
			restore_current_blog();
			
		}
		
	} // END new_blog()
	
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		__()
	 * @see		_e()
	 * @see		esc_html()
	 * @see		switch_to_blog()
	 * @see		activate_plugins()
	 * @see		restore_current_blog()
	 * @see		wp_is_large_network()
	 *
	 * @global	object	$wpdb
	 * @param	string	$plugin
	 * @return	string
 	 */
	public function mass_activate( $plugin ) {
		
		if ( wp_is_large_network() ) { ?>
			
			<div class="error">
				<p><?php _e('Failed to mass activate: Your multisite network is too large for this function.', 'pm'); ?></p>
			</div>
			<?php
			
			return false;
			
		}
		
		global $wpdb;
		
		set_time_limit( 120 );

		$blogs = $wpdb->get_col( "SELECT blog_id FROM {$wpdb->blogs} WHERE site_id = {$wpdb->siteid} AND spam = 0" );
		if ( $blogs ) {
			foreach( $blogs as $blog_id ) {
				switch_to_blog( $blog_id );
				activate_plugin( $plugin ); //silently activate the plugin
				restore_current_blog();
			} ?>
			<div id="message" class="updated notice is-dismissible">
				<p>
					<?php printf( __( '%s has been MASS ACTIVATED.', 'wpmu-plugin-manager' ), '<span style="color:#FF3300;">' . esc_html( $plugin ) . '</span>'); ?>
				</p>
			</div>
			<?php
		} else { ?>
			<div class="error">
				<p>
					<?php _e( 'Failed to mass activate: error selecting blogs', 'wpmu-plugin-manager' ); ?>
				</p>
			</div>
		<?php
		}
		
	} // END mass_activate()
	
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		__()
	 * @see		_e()
	 * @see		esc_html()
	 * @see		switch_to_blog()
	 * @see		deactivate_plugins()
	 * @see		restore_current_blog()
	 * @see		wp_is_large_network()
	 *
	 * @global	object	$wpdb
	 * @param	string	$plugin
	 * @return	string
 	 */
	function mass_deactivate( $plugin ) {
		
		if ( wp_is_large_network() ) { ?>
			
			<div class="error">
				<p><?php _e('Failed to mass activate: Your multisite network is too large for this function.', 'wpmu-plugin-mnanager' ); ?></p>
			</div>
			<?php
			
			return false;
			
		}
		
		global $wpdb;
		
		set_time_limit( 120 );
		$blogs = $wpdb->get_col( "SELECT blog_id FROM {$wpdb->blogs} WHERE site_id = {$wpdb->siteid} AND spam = 0" );

		if ( $blogs ) {
			foreach ( $blogs as $blog_id )	{
				switch_to_blog( $blog_id );
				deactivate_plugins( $plugin, true ); //silently deactivate the plugin
				restore_current_blog();
			} ?>
			<div id="message" class="updated notice is-dismissible">
				<p>
					<?php printf( __( '%s has been MASS DEACTIVATED.', 'wpmu-plugin-manager' ), '<span style="color:#FF3300;">' . esc_html( $plugin ) . '</span>'); ?>
				</p>
			</div>
		<?php
		} else { ?>
			<div class="error">
				<p>
					<?php _e( 'Failed to mass deactivate: error selecting blogs', 'wpmu-plugin-manager' ); ?>
				</p>
			</div>
		<?php
		}
		
	} // END mass_deactivate()

	//remove plugins with no user control
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		current_user_can()
	 * @see		get_site_option()
	 * @see		get_option()
	 *
	 * @param	string	$all_plugins
	 * @return	void
 	 */
	function remove_plugins( $all_plugins ) {
		
		if ( current_user_can( $this->permission ) ) { //don't filter siteadmin
			return $all_plugins;
		}

		$auto_activate		= (array)get_site_option( 'pm_auto_activate_list' );
		$user_control		= (array)get_site_option( 'pm_user_control_list' );
		$override_plugins	= (array)get_option( 'pm_plugin_override_list' );

		foreach ( (array)$all_plugins as $plugin_file => $plugin_data ) {
			
			if ( in_array( $plugin_file, $user_control ) || in_array( $plugin_file, $auto_activate ) || in_array( $plugin_file, $override_plugins ) ) {
				//do nothing - leave it in
			} else {
				unset( $all_plugins[ $plugin_file ] ); //remove plugin
			}
			
		}
		
		return $all_plugins;
		
	} // END remove_plugins()

	//plugin activate links
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		current_user_can()
	 * @see		get_site_option()
	 * @see		get_option()
	 * @action	plugin_action_links
	 *
	 * @global	?	$psts
	 * @global	string	$blog_id
	 * @param	array	$action_links
	 * @param	string	$plugin_file
	 * @param	string	$plugin_data
	 * @param	string	$context
	 * @return	void
 	 */
	function action_links( $action_links, $plugin_file, $plugin_data, $context ) {
		
//		global $psts, $blog_id;

		if ( current_user_can( $this->permission ) ) {
			return $action_links;
		}

		$auto_activate		= (array)get_site_option( 'pm_auto_activate_list' );
		$user_control		= (array)get_site_option( 'pm_user_control_list' );
		$override_plugins	= (array)get_option( 'pm_plugin_override_list' );

		if ( $context != 'active' ) {
			if ( in_array( $plugin_file, $user_control ) || in_array( $plugin_file, $auto_activate ) || in_array( $plugin_file, $override_plugins ) ) {
				return $action_links;
			}
		}
		
		return $action_links;
		
	} // END action_links()

	//use jquery to remove associated checkboxes to prevent mass activation (usability, not security)
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		esc_js()
	 *
	 * @param	string	$plugin_file
	 * @return	void
 	 */
	public function remove_checks( $plugin_file ) {
		
		echo '<script type="text/javascript">jQuery("input:checkbox[value=\'' . esc_js( $plugin_file ). '\']).remove();</script>';
		
	} // END remove_checks()

	/*
	Removes activated plugins that should not have been activated (multi). Single activations
	are additionaly protected by a nonce field. Dirty hack in case someone uses firebug or
	something to hack the post and simulate a bulk activation. I'd rather prevent
	them from being activated in the first place, but there are no hooks for that! The
	display will show the activated status, but really they are not. Only hacking attempts
	will see this though! */
	/**
	 * @todo
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		current_user_can()
	 * @see		get_site_option()
	 * @see		get_option()
	 * @see		deactivate_plugins()
	 *
	 * @param	array	$active_plugins
	 * @return	array
 	 */
	function check_activated( $active_plugins ) {
		
		if ( current_user_can( $this->permission ) ) {
			return $active_plugins;
		}

		//only perform check right after activation hack attempt
		if ( $_POST['action'] != 'activate-selected' && $_POST['action2'] != 'activate-selected' ) {
			return $active_plugins;
		}

		$auto_activate		= (array)get_site_option( 'pm_auto_activate_list' );
		$user_control		= (array)get_site_option( 'pm_user_control_list' );
		$override_plugins	= (array)get_option( 'pm_plugin_override_list' );

		foreach ( (array)$active_plugins as $plugin_file => $plugin_data ) {
			
			if ( in_array( $plugin_file, $user_control ) || in_array( $plugin_file, $auto_activate ) || in_array( $plugin_file, $override_plugins ) ) {
				//do nothing - leave it in
			} else {
				deactivate_plugins( $plugin_file, true ); //silently remove any plugins
				unset( $active_plugins[ $plugin_file ] );
			}
			
		}

		return $active_plugins;
		
	} // END check_activated()
	
	/**
	 * Load the plugin's textdomain hooked to 'plugins_loaded'.
	 *
	 * @since	1.0.0
	 * @access	public
	 *
	 * @see		load_plugin_textdomain()
	 * @see		plugin_basename()
	 * @action	plugins_loaded
	 *
	 * @return	void
	 */
	public function load_plugin_textdomain() {
		
		load_plugin_textdomain(
			'wpmu-plugin-manager',
			false,
			dirname( plugin_basename( __FILE__ ) ) . '/languages/'
		);
		
	} // END load_plugin_textdomain()

	private function can_mass_process() {
	    if ( wp_is_large_network() ) {
	        $can = false;
	    } else {
	        $can = true;
	    }
	    return apply_filters( 'wpc_pm_mass_process_status', $can );
	}

} // END class WPC_PluginManager

/**
 * Instantiate the main class
 *
 * @since	1.0.0
 * @access	public
 *
 * @var	object	$wpc_pm holds the instantiated class {@uses WPC_PluginManager}
 */
$wpc_pm = new WPC_PluginManager();