added more-privacy-options mu-plugin

wp-content/mu-plugins/ds_wp3_private_blog.php

+<?php
+/*
+Plugin Name: More Privacy Options
+Plugin URI:	http://wordpress.org/extend/plugins/more-privacy-options/
+Version: 4.6
+Description: Add more privacy(visibility) options to a WordPress Multisite Network. Settings->Reading->Visibility:Network Users, Blog Members, or Admins Only. Network Settings->Network Visibility Selector: All Blogs Visible to Network Users Only or Visibility managed per blog as default.
+Author: D. Sader
+Author URI: http://dsader.snowotherway.org/
+Network: true
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+*/
+/*
+Tips:
+To allow everyone who is on-campus into the blog, while requiring those off-campus to log in. Modify function ds_users_authenticator().
+
+Such as this:
+
+if (     (strncmp('155.47.', $_SERVER['REMOTE_ADDR'], 7 ) == 0)  || (is_user_logged_in())                  ) {
+        // user is either logged in or at campus 
+                }
+else {
+        // user is either not logged in or at campus      
+
+      if( is_feed() ) {
+...
+}
+
+Similarily:
+A plugin to allow login from only certain ip:
+http://w-shadow.com/blog/2008/11/07/restrict-login-by-ip-a-wordpress-plugin/
+A plugin to ban certain ip:
+http://wordpress.org/extend/plugins/wp-ban/
+
+To protect files/attachments/images uploaded to protected blogs(.htaccess rewrites needed)
+Pluginspiration: http://plugins.svn.wordpress.org/private-files/trunk/privatefiles.php
+
+?????????? Notes/Questions about allowing wp-activate.php on a private site ????????????????????
+
+First, but using string matching is dumb and easily bypasses login page. Adding "?wp-activate.php" to any url
+
+//if( strpos($_SERVER['REQUEST_URI'], 'wp-activate.php')) return;
+
+Second, allow activate.php on the main page, but PHP_SELF url string matching may have the same drawbacks as REQUEST_URI. Could be done to main page with a plugin/function.
+
+Also, the appearance of wp-activate on a subsite depends on which action is hooked: send_headers, or template_redirect. I prefer the template_redirect so activations can occur on subsites, too.
+
+add_action('send_headers','ds_more_privacy_options_activate',10);
+	function ds_more_privacy_options_activate() {
+		global $ds_more_privacy_options;
+
+		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php') && is_main_site()) {
+			remove_action('send_headers', array($ds_more_privacy_options, 'ds_users_authenticator'),10);
+			remove_action('send_headers', array($ds_more_privacy_options, 'ds_members_authenticator'),10);
+			remove_action('send_headers', array($ds_more_privacy_options, 'ds_admins_authenticator'),10);
+		}
+	}
+
+Third, you could redirect any url match to the main page wp-activate.php, but the redirection doesn't take the activation key with it - just not ideal to use any site but the main for activation IMHO.
+
+// at any rate using url matching was dumb - adding wp-activate.php to any url bypassed the login auth - so a redirect to main site may help - provided the main site isn't also private.
+//		if( strpos($_SERVER['REQUEST_URI'], 'wp-activate.php')  && !is_main_site()) { //DO NOT DO THIS!
+	
+So, better may be PHP_SELF since we can wait for script to execute before deciding to auth_redirect it.
+	
+//		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php')  && !is_main_site()) {
+//			$destination = network_home_url('wp-activate.php');
+//			wp_redirect( $destination );
+//		exit();
+//		}
+
+Finally, changing the hook to fire at send_headers rather than template_redirect allows the activation page on every site. Still shows template pages with headers/sidebars etc - so not ideal either. Hence my preference to redirect to the main site.
+
+//			//	add_action('template_redirect', array($this, 'ds_users_authenticator'));
+				add_action('send_headers', array($this, 'ds_users_authenticator'));
+
+So, I have the private functions the way I actually use them on my private sites/networks. I also do many activations as the SiteAdmin manually using other plugins.
+Therefore, the code in this revision may make blogs more private, but somewhat more inconvenient to activate, both features I desire.
+
+We'll see how the feedback trickles in on this issue. 
+
+*/
+
+class DS_More_Privacy_Options {
+		var $l10n_prefix;
+
+	function __construct() {
+		global  $current_blog;
+		
+		if ( ! is_multisite() ) {
+			add_action( 'all_admin_notices', array( $this, 'display_not_multisite_notice' ) );
+			return false;
+		}
+		
+		$this->l10n_prefix = 'more-privacy-options';
+
+		//------------------------------------------------------------------------//
+		//---Hooks-----------------------------------------------------------------//
+		//------------------------------------------------------------------------//
+				add_action( 'init', array($this, 'ds_localization_init' ));
+			// Network->Settings
+				add_action( 'update_wpmu_options', array($this, 'sitewide_privacy_update'));
+				add_action( 'wpmu_options', array($this, 'sitewide_privacy_options_page'));
+			
+			// hooks into Misc Blog Actions in Network->Sites->Edit
+				add_action('wpmueditblogaction', array($this, 'wpmu_blogs_add_privacy_options'),-999);
+			// hooks into Blog Columns views Network->Sites
+				//add_filter( 'manage_sites-network_columns', array( $this, 'add_sites_column' ), 10, 1);
+				//add_action( 'manage_sites_custom_column', array( $this, 'manage_sites_custom_column' ), 10, 3);
+
+			// hook into options-reading.php Dashboard->Settings->Reading.
+				add_action('blog_privacy_selector', array($this, 'add_privacy_options'));
+
+			// all three add_privacy_option get a redirect and a message in the Login form
+		$number = intval(get_site_option('ds_sitewide_privacy'));
+
+		if (( '-1' == $current_blog->public ) || ($number == '-1')) {
+			
+			//wp_is_mobile() ? is send_headers or template_redirect better for mobiles?
+				add_action('template_redirect', array($this, 'ds_users_authenticator'));
+			//	add_action('send_headers', array($this, 'ds_users_authenticator'));
+				add_action('login_form', array($this, 'registered_users_login_message')); 
+				add_filter('privacy_on_link_title', array($this, 'registered_users_header_title'));
+				add_filter('privacy_on_link_text', array($this, 'registered_users_header_link') );
+		}
+		if ( '-2' == $current_blog->public ) {
+				add_action('template_redirect', array($this, 'ds_members_authenticator'));
+			//	add_action('send_headers', array($this, 'ds_members_authenticator'));
+				add_action('login_form', array($this, 'registered_members_login_message')); 
+				add_filter('privacy_on_link_title', array($this, 'registered_members_header_title'));
+				add_filter('privacy_on_link_text', array($this, 'registered_members_header_link') );
+
+		}
+		if ( '-3' == $current_blog->public ) {
+				add_action('template_redirect', array($this, 'ds_admins_authenticator'));
+			//	add_action('send_headers', array($this, 'ds_admins_authenticator'));
+				add_action('login_form', array($this, 'registered_admins_login_message'));
+				add_filter('privacy_on_link_title', array($this, 'registered_admins_header_title'));
+				add_filter('privacy_on_link_text', array($this, 'registered_admins_header_link') );
+		}
+
+			// fixes robots.txt rules 
+				add_action('do_robots', array($this, 'do_robots'),1);
+
+			// fixes noindex meta as well
+				add_action('wp_head', array($this, 'noindex'),0);
+				add_action('login_head', array($this, 'noindex'),1);
+
+			//no pings unless public either
+				add_filter('option_ping_sites', array($this, 'privacy_ping_filter'),1);
+			//email SuperAdmin when privacy changes
+                //	add_action( 'update_blog_public', array($this,'ds_mail_super_admin'));
+			// hook into signup form?
+				 add_action('signup_blogform', array($this, 'add_privacy_options'));
+
+	}
+	function display_not_multisite_notice() {
+		
+		echo '<div class="error"><p>' . __( 'More Privacy Options is a plugin just for multisites, please deactivate it.', $this->l10n_prefix) . '</p></div>';
+
+	}
+	
+	function ds_localization_init() {
+				load_plugin_textdomain( $this->l10n_prefix, false, dirname( plugin_basename( __FILE__ ) ) . '/languages/');
+	}
+	
+	function ds_mail_super_admin() {
+		global $blog_id;
+			$blog_public_new = get_blog_option($blog_id,'blog_public');
+									
+			$to_new = $this->ds_mail_super_admin_messages($blog_public_new);			
+				$blogname = get_blog_option( $blog_id, 'blogname');
+			$email =  stripslashes( get_site_option('admin_email') );
+			$subject = __('Site ', $this->l10n_prefix).'"'.$blogname.'" (ID: '.$blog_id.'), '.get_site_url( $blog_id ).', '. __('changed reading visibility setting to ', $this->l10n_prefix) .'"'. $to_new.'"';
+  			$message = __('Site ', $this->l10n_prefix).'"'.$blogname.'" (ID: '.$blog_id.'), '.get_site_url( $blog_id ).', '.__('changed reading visibility setting to ', $this->l10n_prefix) .'"'. $to_new.'."';
+  			$message .= __(" \r\n\r\nSent by More Privacy Options plugin.", $this->l10n_prefix);
+
+			$headers = 'Auto-Submitted: auto-generated';
+ 		wp_mail($email, $subject, $message, $headers);
+	}
+
+	function ds_mail_super_admin_messages($blog_public) {
+			if ( '1' == $blog_public ) {
+				return __('Visible(1)', $this->l10n_prefix);
+			}
+			if ( '0' == $blog_public ) {
+				return __('No Search(0)', $this->l10n_prefix);
+			}
+			if ( '-1' == $blog_public ) {
+				return __('Network Users Only(-1)', $this->l10n_prefix);
+			}
+			if ( '-2' == $blog_public ) {
+				return __('Site Members Only(-2)', $this->l10n_prefix);
+			}
+			if ( '-3' == $blog_public ) {
+				return __('Site Admins Only(-3)', $this->l10n_prefix);
+			}
+	}	
+
+	function do_robots() {
+		//https://wordpress.org/support/topic/robotstxt-too-restrictive-for-allow-search-engines/
+		
+		remove_action('do_robots', 'do_robots');
+
+		header( 'Content-Type: text/plain; charset=utf-8' );
+
+		do_action( 'do_robotstxt' );
+
+		$output = "User-agent: *\n";
+		$public = get_option( 'blog_public' );
+		if ( '1' != $public ) {
+			$output .= "Disallow: /\n";
+		} else {
+			$site_url = parse_url( site_url() );
+			$path = ( !empty( $site_url['path'] ) ) ? $site_url['path'] : '';
+			$output .= "Disallow: $path/wp-admin/\n";
+	}
+
+	echo apply_filters('robots_txt', $output, $public);
+	}	
+
+	function noindex() {
+		remove_action( 'login_head', 'noindex' );
+		remove_action( 'wp_head', 'noindex',1 );//priority 1
+
+		// If the blog is not public, tell robots to go away.
+		if ( '1' != get_option('blog_public') )
+		//		wp_no_robots();
+			echo "<meta name='robots' content='noindex,nofollow' />\n";
+	}
+
+	function privacy_ping_filter($sites) {
+		remove_filter( 'option_ping_sites', 'privacy_ping_filter' );
+		if ( '1' == get_option('blog_public') )
+			return $sites;
+		else
+			return '';
+	}
+
+	//------------------------------------------------------------------------//
+	//---Functions hooked into site_settings.php---------------------------------//
+	function wpmu_blogs_add_privacy_options() { 
+		global $details,$options;
+		?>
+		<tr>
+			<th><?php _e( 'More Privacy Options', $this->l10n_prefix); ?></th>
+			<td>
+				<input type='radio' name='option[blog_public]' value='1' <?php if( $details->public == '1' ) echo " checked"?>> <?php _e('Visible(1)', $this->l10n_prefix) ?>
+				<br />
+	    		<input type='radio' name='option[blog_public]' value='0' <?php if( $details->public == '0' ) echo " checked"?>> <?php _e('No Search(0)', $this->l10n_prefix) ?>    
+				<br />
+	    		<input type='radio' name='option[blog_public]' value='-1' <?php if( $details->public == '-1' ) echo " checked"?>> <?php _e('Network Users Only(-1)', $this->l10n_prefix) ?>
+				<br />
+	    		<input type='radio' name='option[blog_public]' value='-2' <?php if( $details->public == '-2' ) echo " checked"?>> <?php _e('Site Members Only(-2)', $this->l10n_prefix) ?>
+				<br />
+		   		<input type='radio' name='option[blog_public]' value='-3' <?php if( $details->public == '-3' ) echo " checked"?>> <?php _e('Site Admins Only(-3)', $this->l10n_prefix) ?>
+			</td>
+		</tr>
+		<?php
+	}
+
+    function add_sites_column( $column_details ) {
+        $column_details['blog_visibility'] = _x( '<nobr>Visibility</nobr>', 'column name' );
+        return $column_details;
+    }
+
+    function manage_sites_custom_column( $column_name, $blog_id ) {
+        if ( $column_name != 'blog_visibility' ) {
+            return;
+        }
+		$details = get_blog_details($blog_id);
+
+			if ( '1' == $details->public ) {
+				_e('Visible(1)', $this->l10n_prefix);
+			}
+			if ( '0' == $details->public ) {
+				_e('No Search(0)', $this->l10n_prefix);
+			}
+			if ( '-1' == $details->public ) {
+				_e('Network Users Only(-1)', $this->l10n_prefix);
+			}
+			if ( '-2' == $details->public ) {
+				_e('Site Members Only(-2)', $this->l10n_prefix);
+			}
+			if ( '-3' == $details->public ) {
+				_e('Site Admins Only(-3)', $this->l10n_prefix);
+			}
+			echo '<br class="clear" />';
+	}
+
+	function wpmu_blogs_add_privacy_options_messages() {
+		global $blog;
+			if ( '1' == $blog[ 'public' ] ) {
+				_e('Visible(1)', $this->l10n_prefix);
+			}
+			if ( '0' == $blog[ 'public' ] ) {
+				_e('No Search(0)', $this->l10n_prefix);
+			}
+			if ( '-1' == $blog[ 'public' ] ) {
+				_e('Network Users Only(-1)', $this->l10n_prefix);
+			}
+			if ( '-2' == $blog[ 'public' ] ) {
+				_e('Site Members Only(-2)', $this->l10n_prefix);
+			}
+			if ( '-3' == $blog[ 'public' ] ) {
+				_e('Site Admins Only(-3)', $this->l10n_prefix);
+			}
+			echo '<br class="clear" />';
+	}
+
+	//------------------------------------------------------------------------//
+	//---Functions hooked into blog visibility selector(options-reading.php)-----//
+	//------------------------------------------------------------------------//
+	function add_privacy_options($options) { 
+		global $blogname,$current_site; 
+		$blog_name = get_bloginfo('name', 'display');
+		?>
+			<label class="checkbox" for="blog-private-1">
+				<input id="blog-private-1" type="radio" name="blog_public" value="-1" <?php checked('-1', get_option('blog_public')); ?> /><?php _e('Visible only to registered users of this network', $this->l10n_prefix); ?>
+			</label>
+			<br/>
+			<label class="checkbox" for="blog-private-2">
+				<input id="blog-private-2" type="radio" name="blog_public" value="-2" <?php checked('-2', get_option('blog_public')); ?> /><?php _e('Visible only to registered users of this site', $this->l10n_prefix); ?>
+			</label>
+			<br/>
+			<label class="checkbox" for="blog-private-3">
+				<input id="blog-private-3" type="radio" name="blog_public" value="-3" <?php checked('-3', get_option('blog_public')); ?> /><?php _e('Visible only to administrators of this site', $this->l10n_prefix); ?>
+			</label>
+			<?php 
+	}
+
+	//------------------------------------------------------------------------//
+	//---Functions for Registered Community Users Only Blog-------------------//
+	//------------------------------------------------------------------------//
+	function ds_feed_login() {
+		//December 2012 tested with "Free RSS" for iPhone. Google Reader does not authenticate locked feeds. Tough to find a free reader that does authenticate.
+		global $current_blog, $blog_id;
+			$credentials = array();
+        	$credentials['user_login'] = isset($_SERVER['PHP_AUTH_USER']) ? $_SERVER['PHP_AUTH_USER'] : '';
+        	$credentials['user_password'] = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : '';
+			$credentials['remember'] = true;
+			$user = wp_signon( $credentials, false ); //if this creates WP_User, the next 3 lines are redundant
+			$user_id = is_wp_error( $user ) ? get_user_id_from_string( $user->user_login ) : null;
+
+			if ( is_wp_error( $user ) ||
+				// "Members Only"
+				( ( '-2' == $current_blog->public ) && ( !is_user_member_of_blog( $user_id, $blog_id ) ) && !is_super_admin( $user_id ) ) ||
+				// TODO "Admins Only" - members still see feeds need a new ms-function is_super_admin( $user_id, $blog_id )
+				( ( '-3' == $current_blog->public )
+				//&&  !is_super_admin( $user_id, $blog_id ) //this function doesn't exist
+				&& ( !is_user_member_of_blog( $user_id, $blog_id ) )
+				&& !is_super_admin( $user_id ) )
+	   	        )
+					{
+ 		               header( 'WWW-Authenticate: Basic realm="' . $_SERVER['SERVER_NAME'] . '"' );
+ 		               header( 'HTTP/1.0 401 Unauthorized' );
+ 		               die();
+					}   	       
+	}
+	
+	function ds_users_authenticator () {
+		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php') && is_main_site()) return;		
+		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php') && !is_main_site()) {
+			$destination = network_home_url('wp-activate.php');
+			wp_redirect( $destination );
+		exit();
+		}
+
+
+		if ( !is_user_logged_in() ) {
+			if( is_feed() ) {
+				$this->ds_feed_login();
+			} else {
+				auth_redirect();
+			}
+		}
+	}
+	
+	function registered_users_login_message () {
+		global $current_site;
+		echo '<p>';
+		echo __('Visible only to registered users of this network', $this->l10n_prefix);
+		echo '</p><br/>';
+	}
+	
+	function registered_users_header_title () {
+		return __('Visible only to registered users of this network', $this->l10n_prefix);
+	}
+	
+	function registered_users_header_link () {
+		return __('Visible only to registered users of this network', $this->l10n_prefix);
+	}
+
+	//------------------------------------------------------------------------//
+	//---Shortcut Function for logged in users to add timed "refresh"--------//
+	//------------------------------------------------------------------------//
+	function ds_login_header() {
+	global $error, $is_iphone, $interim_login, $current_site;
+			nocache_headers();
+			header( 'Content-Type: text/html; charset=utf-8' );
+		?>
+	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+	<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
+		<head>
+			<title><?php _e('Site Visibility', $this->l10n_prefix); ?></title>
+			<!--<meta http-equiv="refresh" content="8;URL=<?php echo wp_login_url(); ?>" /> -->
+			<meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php bloginfo('charset'); ?>" />
+			<?php
+			wp_admin_css( 'login', true );
+			wp_admin_css( 'colors-fresh', true );
+
+			if ( $is_iphone ) { ?>
+			<meta name="viewport" content="width=320; initial-scale=0.9; maximum-scale=1.0; user-scalable=0;" />
+			<style type="text/css" media="screen">
+				form { margin-left: 0px; }
+				#login { margin-top: 20px; }
+			</style>
+			<?php
+			} elseif ( isset($interim_login) && $interim_login ) { ?>
+			<style type="text/css" media="all">
+				.login #login { margin: 20px auto; }
+			</style>
+			<?php
+			}
+
+			do_action('login_head'); ?>
+		</head>
+		<body class="login">
+			<div id="login">
+				<h1><a href="<?php echo apply_filters('login_headerurl', 'http://' . $current_site->domain . $current_site->path ); ?>" title="<?php echo apply_filters('login_headertitle', $current_site->site_name ); ?>"><span class="hide"><?php bloginfo('name'); ?></span></a></h1>
+	<?php
+	}
+
+	//------------------------------------------------------------------------//
+	//---Functions for Members Only Blog---------------------------------------//
+	//------------------------------------------------------------------------//
+	function ds_members_authenticator() {
+		global $current_user, $blog_id;
+		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php') && is_main_site()) return;		
+		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php') && !is_main_site()) {
+			$destination = network_home_url('wp-activate.php');
+			wp_redirect( $destination );
+		exit();
+		}
+
+		if( is_user_member_of_blog( $current_user->ID, $blog_id ) || is_super_admin() ) {
+			 return;
+		} else {
+				if ( is_user_logged_in() ) {	      	
+					$this->ds_login_header(); ?>
+					<form name="loginform" id="loginform" />
+						<p><a href="<?php if (!is_user_logged_in()) { echo wp_login_url(); } else { echo network_home_url(); } ?>"><?php echo __('Click', $this->l10n_prefix).'</a>'. __(' to continue', $this->l10n_prefix); ?>.</p>
+							<?php $this->registered_members_login_message (); ?>
+					</form>
+				</div>
+			</body>
+		</html>
+		<?php 
+			exit();
+		} else {
+					if( is_feed()) {
+    	       	$this->ds_feed_login();
+    	       	
+		   	    } else {
+		auth_redirect();
+				}
+			}
+		}
+	}
+	
+	function registered_members_login_message() {
+		global $current_site;
+		echo '<p>';
+		if(!is_user_logged_in()) {
+			echo __('Visible only to registered users of this site', $this->l10n_prefix);
+		}
+		if(is_user_logged_in()) {
+		echo __('To become a member of this site, contact', $this->l10n_prefix).' <a href="mailto:' . str_replace( '@', ' AT ', get_option('admin_email')) . '?subject=' . get_bloginfo('name') . __(' Site Membership at ', $this->l10n_prefix) . $current_site->site_name .'">' . str_replace( '@', ' AT ', get_option('admin_email')) . '</a>';
+
+		}
+		echo '</p><br/>';
+	}
+	
+	function registered_members_header_title() {
+		return __('Visible only to registered users of this site', $this->l10n_prefix);
+	}
+	
+	function registered_members_header_link() {
+		return __ ('Visible only to registered users of this site', $this->l10n_prefix);
+	}
+
+	//-----------------------------------------------------------------------//
+	//---Functions for Admins Only Blog--------------------------------------//
+	//---WARNING: member users, if they exist, still see the backend---------//
+	function ds_admins_authenticator() {
+		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php') && is_main_site()) return;
+		if( strpos($_SERVER['PHP_SELF'], 'wp-activate.php') && !is_main_site()) {
+			$destination = network_home_url('wp-activate.php');
+			wp_redirect( $destination );
+		exit();
+		}
+
+		if( current_user_can( 'manage_options' ) || is_super_admin() ) {
+			 return;
+		} else {
+		
+		if (( is_user_logged_in() )) {
+			$this->ds_login_header(); ?>
+						<form name="loginform" id="loginform" />
+							<?php $this->registered_admins_login_message (); ?>
+							<p><?php echo __('Visit', $this->l10n_prefix); ?> <a href="<?php echo network_home_url(); ?>"><?php echo network_home_url(); ?></a> <?php __('to continue', $this->l10n_prefix); ?>.</p>
+						</form>
+					</div>
+				</body>
+			</html>
+			<?php 
+			exit();
+		} else {
+					if( is_feed()) {
+    	       	$this->ds_feed_login();
+		   	    } else {
+		auth_redirect();
+				}
+			}
+		}
+	}
+	
+	function registered_admins_login_message() {
+		echo '<p>';
+		echo __('Visible only to administrators of this site', $this->l10n_prefix);
+		echo '</p><br/>';
+	}	
+	
+	function registered_admins_header_title() {
+		return __('Visible only to administrators of this site', $this->l10n_prefix);
+	}
+	
+	function registered_admins_header_link() {
+		return __('Visible only to administrators of this site', $this->l10n_prefix);
+	}
+
+//-----------------------------------------------------------------------//
+//---Functions for SiteAdmins Options--------------------------------------//
+//---WARNING: member users, if they exist, still see the backend---------//
+	function sitewide_privacy_options_page() {
+		$number = intval(get_site_option('ds_sitewide_privacy'));
+		if ( !isset($number) ) {
+			$number = '1';
+		}
+		echo '<h3>'. __('Network Visibility Selector', $this->l10n_prefix).'</h3>';
+		echo '
+		<table class="form-table">
+		<tr valign="top"> 
+			<th scope="row">' . __('Network Visibility', $this->l10n_prefix) . '</th><td>';
+
+			$checked = ( $number == "-1" ) ? " checked=''" : "";
+		echo '<label><input type="radio" name="ds_sitewide_privacy" id="ds_sitewide_privacy" value="-1" ' . $checked . '/>
+			' . __ ('Visible only to registered users of this network', $this->l10n_prefix) . '
+			</label><br />';
+
+			$checked = ( $number == "1" ) ? " checked=''" : "";
+		echo '<label><input type="radio" name="ds_sitewide_privacy" id="ds_sitewide_privacy_1" value="1" ' . $checked . '/>
+			' . __('Default: visibility managed per site.', $this->l10n_prefix) . '
+			</label><br />';
+
+		echo '</td>			
+		</tr>
+		</table>'; 
+	}
+	
+	function sitewide_privacy_update() {
+		update_site_option('ds_sitewide_privacy', $_POST['ds_sitewide_privacy']);
+	}
+}
+new DS_More_Privacy_Options();	
+?>
\ No newline at end of file