<?php

if ( defined( 'WP_ALLOW_MULTISITE' ) )

	add_cacheaction( 'add_cacheaction', 'wp_super_cache_multisite_init' );

function wp_super_cache_multisite_init() {

	add_filter( 'wpmu_blogs_columns', 'wp_super_cache_blogs_col' );

	add_action( 'manage_sites_custom_column', 'wp_super_cache_blogs_field', 10, 2 );

	add_action( 'init', 'wp_super_cache_override_on_flag' );

}

function wp_super_cache_blogs_col( $col ) {

	$col[ 'wp_super_cache' ] = __( 'Cached', 'wp-super-cache' );

	return $col;

}

function wp_super_cache_blogs_field( $name, $blog_id ) {

	if ( $name != 'wp_super_cache' )

		return false;

	if ( isset( $_GET[ 'id' ] ) && $blog_id == $_GET[ 'id' ] ) {

		$valid_nonce = isset( $_GET[ '_wpnonce' ] ) ? wp_verify_nonce( $_GET[ '_wpnonce' ], 'wp-cache' . $_GET[ 'id' ] ) : false;

		if ( $valid_nonce && isset( $_GET[ 'action' ] ) && $_GET[ 'action' ] == 'disable_cache' ) {

			add_blog_option( $_GET[ 'id' ], 'wp_super_cache_disabled', 1 );

		} elseif ( $valid_nonce && isset( $_GET[ 'action' ] ) && $_GET[ 'action' ] == 'enable_cache' ) {

			delete_blog_option( $_GET[ 'id' ], 'wp_super_cache_disabled' );

		}

	}

	if ( get_blog_option( $blog_id, 'wp_super_cache_disabled' ) == 1 ) {

		echo "<a href='" . wp_nonce_url( add_query_arg( array( 'action' => 'enable_cache', 'id' => $blog_id ) ), 'wp-cache' . $blog_id ) . "'>" . __( 'Enable', 'wp-super-cache' ) . "</a>";

	} else {

		echo "<a href='" . wp_nonce_url( add_query_arg( array( 'action' => 'disable_cache', 'id' => $blog_id ) ), 'wp-cache' . $blog_id ) . "'>" . __( 'Disable', 'wp-super-cache' ) . "</a>";

	}

}

function wp_super_cache_multisite_notice() {

	if ( isset( $_GET[ 'page' ] ) && $_GET[ 'page' ] == 'wpsupercache' )

		echo '<div class="error"><p><strong>' . __( 'Caching has been disabled on this blog on the Network Admin Sites page.', 'wp-super-cache' ) . '</strong></p></div>';

}

function wp_super_cache_override_on_flag() {

	global $cache_enabled, $super_cache_enabled;

	if ( $cache_enabled != true )

		return false;

	if ( get_option( 'wp_super_cache_disabled' ) ) {

		$cache_enabled = false;

		$super_cache_enabled = false;

		define( 'DONOTCACHEPAGE', 1 );

		define( "SUBMITDISABLED", 'disabled style="color: #aaa" ' );

		if ( is_admin() )

			add_action( 'admin_notices', 'wp_super_cache_multisite_notice' );

	}

}

?>