<?php

/*

Plugin Name: WP Super Cache

Plugin URI: http://ocaoimh.ie/wp-super-cache/

Description: Very fast caching plugin for WordPress.

Version: 0.9.8

Author: Donncha O Caoimh

Author URI: http://ocaoimh.ie/

*/

/*  Copyright 2005-2006  Ricardo Galli Granada  (email : gallir@uib.es)

    Copyright 2007-2009 Donncha O Caoimh (http://ocaoimh.ie/)

    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.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

// Pre-2.6 compatibility

if( !defined('WP_CONTENT_URL') )

	define( 'WP_CONTENT_URL', get_option('siteurl') . '/wp-content');

if( !defined('WP_CONTENT_DIR') )

	define( 'WP_CONTENT_DIR', ABSPATH . 'wp-content' );

$wp_cache_config_file = WP_CONTENT_DIR . '/wp-cache-config.php';

if( !@include($wp_cache_config_file) ) {

	get_wpcachehome();

	$wp_cache_config_file_sample = WPCACHEHOME . 'wp-cache-config-sample.php';

	@include($wp_cache_config_file_sample);

} else {

	get_wpcachehome();

}

$wp_cache_config_file_sample = WPCACHEHOME . 'wp-cache-config-sample.php';

$wp_cache_link = WP_CONTENT_DIR . '/advanced-cache.php';

$wp_cache_file = WPCACHEHOME . 'advanced-cache.php';

if( !defined( 'WP_CACHE' ) ) {

	$wp_cache_check_wp_config = true;

}

include(WPCACHEHOME . 'wp-cache-base.php');

function wp_super_cache_text_domain() {

	load_plugin_textdomain( 'wp-super-cache', WPCACHEHOME . 'languages', basename( dirname( __FILE__ ) ) . '/languages' );

}

add_action( 'init', 'wp_super_cache_text_domain' );

// from legolas558 d0t users dot sf dot net at http://www.php.net/is_writable

function is_writeable_ACLSafe($path) {

	// PHP's is_writable does not work with Win32 NTFS

	if ($path{strlen($path)-1}=='/') // recursively return a temporary file path

		return is_writeable_ACLSafe($path.uniqid(mt_rand()).'.tmp');

	else if (is_dir($path))

		return is_writeable_ACLSafe($path.'/'.uniqid(mt_rand()).'.tmp');

	// check tmp file for read/write capabilities

	$rm = file_exists($path);

	$f = @fopen($path, 'a');

	if ($f===false)

		return false;

	fclose($f);

	if (!$rm)

		unlink($path);

	return true;

}

function get_wpcachehome() {

	if( defined( 'WPCACHEHOME' ) == false ) {

		if( is_file( dirname(__FILE__) . '/wp-cache-config-sample.php' ) ) {

			define( 'WPCACHEHOME', trailingslashit( dirname(__FILE__) ) );

		} elseif( is_file( dirname(__FILE__) . '/wp-super-cache/wp-cache-config-sample.php' ) ) {

			define( 'WPCACHEHOME', dirname(__FILE__) . '/wp-super-cache/' );

		} else {

			die( sprintf( __( 'Please create %s /wp-cache-config.php from wp-super-cache/wp-cache-config-sample.php', 'wp-super-cache' ), WP_CONTENT_DIR ) );

		}

	}

}

function wpsupercache_deactivate() {

	global $wp_cache_config_file, $wp_cache_link, $cache_path;

	$files = array( $wp_cache_config_file, $wp_cache_link );

	foreach( $files as $file ) {

		if( file_exists( $file ) )

			unlink( $file );

	}

	if( !function_exists( 'prune_super_cache' ) )

		include_once( 'wp-cache-phase2.php' );

	prune_super_cache ($cache_path, true);

	@unlink( $cache_path . '.htaccess' );

	@unlink( $cache_path . 'meta' );

	@unlink( $cache_path . 'supercache' );

	wp_clear_scheduled_hook( 'wp_cache_check_site_hook' );

}

register_deactivation_hook( __FILE__, 'wpsupercache_deactivate' );

function wpsupercache_activate() {

}

register_activation_hook( __FILE__, 'wpsupercache_activate' );

function wp_cache_add_pages() {

	if( function_exists( 'is_site_admin' ) ) {

		if( is_site_admin() ) {

			add_submenu_page('wpmu-admin.php', 'WP Super Cache', 'WP Super Cache', 'manage_options', 'wpsupercache', 'wp_cache_manager');

			add_options_page('WP Super Cache', 'WP Super Cache', 'manage_options', 'wpsupercache', 'wp_cache_manager');

		}

	} else {

		add_options_page('WP Super Cache', 'WP Super Cache', 'manage_options', 'wpsupercache', 'wp_cache_manager');

	}

}

add_action('admin_menu', 'wp_cache_add_pages');

function wp_cache_manager() {

	global $wp_cache_config_file, $valid_nonce, $supercachedir, $cache_path, $cache_enabled, $cache_compression, $super_cache_enabled, $wp_cache_hello_world;

	global $wp_cache_clear_on_post_edit, $cache_rebuild_files, $wp_cache_mutex_disabled, $wp_cache_mobile_enabled, $wp_cache_mobile_whitelist, $wp_cache_mobile_browsers;

	global $wp_cache_cron_check, $wp_cache_debug, $wp_cache_hide_donation, $wp_cache_not_logged_in, $wp_supercache_cache_list;

	global $wp_super_cache_front_page_check;

	if( function_exists( 'is_site_admin' ) )

		if( !is_site_admin() )

			return;

	$supercachedir = $cache_path . 'supercache/' . preg_replace('/:.*$/', '',  $_SERVER["HTTP_HOST"]);

	if( get_option( 'gzipcompression' ) == 1 )

		update_option( 'gzipcompression', 0 );

	if( !isset( $cache_rebuild_files ) )

		$cache_rebuild_files = 0;

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

	/* http://www.netlobo.com/div_hiding.html */

	?>

<script type='text/javascript'>

<!--

function toggleLayer( whichLayer ) {

  var elem, vis;

  if( document.getElementById ) // this is the way the standards work

    elem = document.getElementById( whichLayer );

  else if( document.all ) // this is the way old msie versions work

      elem = document.all[whichLayer];

  else if( document.layers ) // this is the way nn4 works

    elem = document.layers[whichLayer];

  vis = elem.style;

  // if the style.display value is blank we try to figure it out here

  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)

    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';

  vis.display = (vis.display==''||vis.display=='block')?'none':'block';

}

// -->

//Clicking header opens fieldset options

jQuery(document).ready(function(){

	jQuery("fieldset h3").css("cursor","pointer").click(function(){

		jQuery(this).parent("fieldset").find("p,form,ul,blockquote").toggle("slow");

	});

});

</script>

<?php

	echo '<div class="wrap">';

	echo "<h2><a href='?page=wpsupercache'>" . __( 'WP Super Cache Manager', 'wp-super-cache' ) . "</a></h2>\n";

	if( 1 == ini_get( 'safe_mode' ) || "on" == strtolower( ini_get( 'safe_mode' ) ) ) {

		?><h3><?php _e( 'Warning! PHP Safe Mode Enabled!', 'wp-super-cache' ); ?></h3>

		<p><?php _e( 'You may experience problems running this plugin because SAFE MODE is enabled.', 'wp-super-cache' );

		if( !ini_get( 'safe_mode_gid' ) ) {

			echo __( 'Your server is set up to check the owner of PHP scripts before allowing them to read and write files.', 'wp-super-cache' ) . "</p><p>";

			echo sprintf( __( 'You or an administrator may be able to make it work by changing the group owner of the plugin scripts to match that of the web server user. The group owner of the %s/cache/ directory must also be changed. See the <a href="http://php.net/features.safe-mode">safe mode manual page</a> for further details.', 'wp-super-cache' ), WP_CONTENT_DIR ) . "</p>";

		} else {

			echo __( 'You or an administrator must disable this. See the <a href="http://php.net/features.safe-mode">safe mode manual page</a> for further details. This cannot be disabled in a .htaccess file unfortunately. It must be done in the php.ini config file.', 'wp-super-cache' ) . "</p>";

		}

	}

	if ( isset( $wp_super_cache_front_page_check ) && $wp_super_cache_front_page_check == 1 && !wp_next_scheduled( 'wp_cache_check_site_hook' ) ) {

		wp_schedule_single_event( time() + 360 , 'wp_cache_check_site_hook' );

		if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( 'scheduled wp_cache_check_site_hook for 360 seconds time.', 2 );

	}

	if(isset($_REQUEST['wp_restore_config']) && $valid_nonce) {

		unlink($wp_cache_config_file);

		echo '<strong>' . __( 'Configuration file changed, some values might be wrong. Load the page again from the "Settings" menu to reset them.', 'wp-super-cache' ) . '</strong>';

	}

	if ( !wp_cache_check_link() ||

		!wp_cache_verify_config_file() ||

		!wp_cache_verify_cache_dir() ) {

		echo '<p>' . __( "Cannot continue... fix previous problems and retry.", 'wp-super-cache' ) . '</p>';

		echo "</div>\n";

		return;

	}

	if (!wp_cache_check_global_config()) {

		echo "</div>\n";

		return;

	}

	if( $wp_cache_debug || !$wp_cache_cron_check ) {

	if( function_exists( "wp_remote_get" ) == false ) {

		$hostname = str_replace( 'http://', '', str_replace( 'https://', '', get_option( 'siteurl' ) ) );

		if( strpos( $hostname, '/' ) )

			$hostname = substr( $hostname, 0, strpos( $hostname, '/' ) );

		$ip = gethostbyname( $hostname );

		if( substr( $ip, 0, 3 ) == '127' || substr( $ip, 0, 7 ) == '192.168' ) {

			?><h3><?php printf( __( 'Warning! Your hostname "%s" resolves to %s', 'wp-super-cache' ), $hostname, $ip ); ?></h3>

			<div style='padding:0 8px;color:#9f6000;background-color:#feefb3;border:1px solid #9f6000;'>

			<p><?php printf( __( 'Your server thinks your hostname resolves to %s. Some services such as garbage collection by this plugin, and WordPress scheduled posts may not operate correctly.', 'wp-super-cache' ), $ip ); ?></p>

			<p><?php printf( __( 'Please see entry 16 in the <a href="%s">Troubleshooting section</a> of the readme.txt', 'wp-super-cache' ), 'http://wordpress.org/extend/plugins/wp-super-cache/faq/' ); ?></p>

			</div>

			<?php

		} else {

			wp_cache_replace_line('^ *\$wp_cache_cron_check', "\$wp_cache_cron_check = 1;", $wp_cache_config_file);

		}

	} else {

		$cron_url = get_option( 'siteurl' ) . '/wp-cron.php?check=' . wp_hash('187425');

		$cron = wp_remote_get($cron_url, array('timeout' => 0.01, 'blocking' => true));

		if( is_array( $cron ) ) {

			if( $cron[ 'response' ][ 'code' ] == '404' ) {

				?><h3>Warning! wp-cron.php not found!</h3>

				<div style='padding:0 8px;color:#9f6000;background-color:#feefb3;border:1px solid #9f6000;'>

				<p><?php _e( 'Unfortunately WordPress cannot find the file wp-cron.php. This script is required for the the correct operation of garbage collection by this plugin, WordPress scheduled posts as well as other critical activities.', 'wp-super-cache' ); ?></p>

				<p><?php printf( __( 'Please see entry 16 in the <a href="%s">Troubleshooting section</a> of the readme.txt', 'wp-super-cache' ), 'http://wordpress.org/extend/plugins/wp-super-cache/faq/' ); ?></p>

				</div>

				<?php

			} else {

				wp_cache_replace_line('^ *\$wp_cache_cron_check', "\$wp_cache_cron_check = 1;", $wp_cache_config_file);

			}

		}

	}

	}

	if( $cache_enabled == true && $super_cache_enabled == true && !got_mod_rewrite() ) {

		?><h4 style='color: #a00'><?php _e( 'Mod rewrite may not be installed!', 'wp-super-cache' ); ?></h4>

		<p><?php _e( 'It appears that mod_rewrite is not installed. Sometimes this check isn&#8217;t 100% reliable, especially if you are not using Apache. Please verify that the mod_rewrite module is loaded. It is required for serving Super Cache static files. You will still be able to use half-on mode.', 'wp-super-cache' ); ?></p><?php

	}

	if( !is_writeable_ACLSafe($wp_cache_config_file) ) {

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

		?><h4 style='text-align:center; color: #a00'><?php _e( 'Read Only Mode. Configuration cannot be changed.', 'wp-super-cache' ); ?> <a href="javascript:toggleLayer('readonlywarning');" title="<?php _e( 'Why your configuration may not be changed', 'wp-super-cache' ); ?>"><?php _e( 'Why', 'wp-super-cache' ); ?></a></h4>

		<div id='readonlywarning' style='border: 1px solid #aaa; margin: 2px; padding: 2px; display: none;'>

		<p><?php printf( __( 'The WP Super Cache configuration file is <code>%s/wp-cache-config.php</code> and cannot be modified. That file must be writeable by the webserver to make any changes.', 'wp-super-cache' ), WP_CONTENT_DIR ); ?>

		<?php _e( 'A simple way of doing that is by changing the permissions temporarily using the CHMOD command or through your ftp client. Make sure it&#8217;s globally writeable and it should be fine.', 'wp-super-cache' ); ?></p>

		<?php _e( 'Writeable:', 'wp-super-cache' ); ?> <code>chmod 666 <?php echo WP_CONTENT_DIR; ?>/wp-cache-config.php</code>

		<?php _e( 'Readonly:', 'wp-super-cache' ); ?> <code>chmod 644 <?php echo WP_CONTENT_DIR; ?>/wp-cache-config.php</code></p>

		</div><?php

	} else {

		define( "SUBMITDISABLED", ' ' );

	}

	// Server could be running as the owner of the wp-content directory.  Therefore, if it's

	// writable, issue a warning only if the permissions aren't 755.

	if( is_writeable_ACLSafe( WP_CONTENT_DIR . '/' ) ) {

		$wp_content_stat = stat(WP_CONTENT_DIR . '/');

		$wp_content_mode = ($wp_content_stat['mode'] & 0777);

		if( $wp_content_mode != 0755 ) {

			?><h4 style='text-align:center; color: #a00'><?php printf( __( 'Warning! %s is writeable!', 'wp-super-cache' ), WP_CONTENT_DIR ); ?></h4>

			<p><?php printf( __( 'You should change the permissions on %s and make it more restrictive. Use your ftp client, or the following command to fix things:', 'wp-super-cache' ), WP_CONTENT_DIR ); ?><code>chmod 755 <?php echo WP_CONTENT_DIR; ?>/</code></p><?php

		}

	}

	if ( $valid_nonce ) {

		if( isset( $_POST[ 'wp_cache_status' ] ) ) {

			if( isset( $_POST[ 'wp_cache_mobile_enabled' ] ) ) {

				$wp_cache_mobile_enabled = 1;

			} else {

				$wp_cache_mobile_enabled = 0;

			}

			if( $wp_cache_mobile_enabled == 1 ) {

				if( !isset( $wp_cache_mobile_whitelist ) )

					wp_cache_replace_line('^ *\$wp_cache_mobile_whitelist', "\$wp_cache_mobile_whitelist = 'Stand Alone/QNws';", $wp_cache_config_file);

				if( false == isset( $wp_cache_mobile_browsers ) )

					wp_cache_replace_line('^ *\$wp_cache_mobile_browsers', "\$wp_cache_mobile_browsers = 'Android, 2.0 MMP, 240x320, AvantGo, BlackBerry, Blazer, Cellphone, Danger, DoCoMo, Elaine/3.0, EudoraWeb, hiptop, IEMobile, iPhone, iPod, KYOCERA/WX310K, LG/U990, MIDP-2.0, MMEF20, MOT-V, NetFront, Newt, Nintendo Wii, Nitro, Nokia, Opera Mini, Palm, Playstation Portable, portalmmm, Proxinet, ProxiNet, SHARP-TQ-GX10, Small, SonyEricsson, Symbian OS, SymbianOS, TS21i-10, UP.Browser, UP.Link, Windows CE, WinWAP';", $wp_cache_config_file);

			}

			wp_cache_replace_line('^ *\$wp_cache_mobile_enabled', "\$wp_cache_mobile_enabled = " . $wp_cache_mobile_enabled . ";", $wp_cache_config_file);

			$wp_supercache_cache_list = $_POST[ 'wp_supercache_cache_list' ] == 1 ? 1 : 0;

			wp_cache_replace_line('^ *\$wp_supercache_cache_list', "\$wp_supercache_cache_list = " . $wp_supercache_cache_list . ";", $wp_cache_config_file);

			switch( $_POST[ 'wp_cache_status' ] ) {

				case 'all':

					wp_cache_enable();

					break;

				case 'none':

					wp_cache_disable();

					break;

				case 'wpcache':

					wp_cache_enable();

					wp_super_cache_disable();

					break;

			}

			if( isset( $_POST[ 'wp_cache_hello_world' ] ) ) {

				$wp_cache_hello_world = 1;

			} else {

				$wp_cache_hello_world = 0;

			}

			wp_cache_replace_line('^ *\$wp_cache_hello_world', '$wp_cache_hello_world = ' . (int)$wp_cache_hello_world . ";", $wp_cache_config_file);

			if( isset( $_POST[ 'wp_cache_clear_on_post_edit' ] ) ) {

				$wp_cache_clear_on_post_edit = 1;

			} else {

				$wp_cache_clear_on_post_edit = 0;

			}

			wp_cache_replace_line('^ *\$wp_cache_clear_on_post_edit', "\$wp_cache_clear_on_post_edit = " . $wp_cache_clear_on_post_edit . ";", $wp_cache_config_file);

			if( isset( $_POST[ 'cache_rebuild_files' ] ) ) {

				$cache_rebuild_files = 1;

			} else {

				$cache_rebuild_files = 0;

			}

			wp_cache_replace_line('^ *\$cache_rebuild_files', "\$cache_rebuild_files = " . $cache_rebuild_files . ";", $wp_cache_config_file);

			if( isset( $_POST[ 'wp_cache_mutex_disabled' ] ) ) {

				$wp_cache_mutex_disabled = 0;

			} else {

				$wp_cache_mutex_disabled = 1;

			}

			if( defined( 'WPSC_DISABLE_LOCKING' ) ) {

				$wp_cache_mutex_disabled = 1;

			}

			wp_cache_replace_line('^ *\$wp_cache_mutex_disabled', "\$wp_cache_mutex_disabled = " . $wp_cache_mutex_disabled . ";", $wp_cache_config_file);

			if( isset( $_POST[ 'wp_cache_not_logged_in' ] ) ) {

				if( $wp_cache_not_logged_in == 0 && function_exists( 'prune_super_cache' ) )

					prune_super_cache ($cache_path, true);

				$wp_cache_not_logged_in = 1;

			} else {

				$wp_cache_not_logged_in = 0;

			}

			wp_cache_replace_line('^ *\$wp_cache_not_logged_in', "\$wp_cache_not_logged_in = " . $wp_cache_not_logged_in . ";", $wp_cache_config_file);

		}

		if( defined( 'WPSC_DISABLE_COMPRESSION' ) ) {

			$cache_compression_changed = false;

			$cache_compression = 0;

			wp_cache_replace_line('^ *\$cache_compression', "\$cache_compression = " . $cache_compression . ";", $wp_cache_config_file);

		} elseif( isset( $_POST[ 'cache_compression' ] ) && $_POST[ 'cache_compression' ] != $cache_compression ) {

			$cache_compression_changed = true;

			$cache_compression = intval( $_POST[ 'cache_compression' ] );

			wp_cache_replace_line('^ *\$cache_compression', "\$cache_compression = " . $cache_compression . ";", $wp_cache_config_file);

			if( function_exists( 'prune_super_cache' ) )

				prune_super_cache ($cache_path, true);

			delete_option( 'super_cache_meta' );

		}

		if( isset( $_POST[ 'wp_cache_hide_donation' ] ) && $_POST[ 'wp_cache_hide_donation' ] != $wp_cache_hide_donation ) {

			$wp_cache_hide_donation = intval( $_POST[ 'wp_cache_hide_donation' ] );

			wp_cache_replace_line('^ *\$wp_cache_hide_donation', "\$wp_cache_hide_donation = " . $wp_cache_hide_donation . ";", $wp_cache_config_file);

		}

	}

	echo '<a name="top"></a>';

	?>

	<table><td><fieldset class="options" id="show-this-fieldset"> 

	<h3><?php _e( 'WP Super Cache Status', 'wp-super-cache' ); ?></h3><?php

	echo '<form name="wp_manager" action="#top" method="post">';

	?>

	<label><input type='radio' name='wp_cache_status' value='all' <?php if( $cache_enabled == true && $super_cache_enabled == true ) { echo 'checked=checked'; } ?>> <strong><?php _e( 'ON', 'wp-super-cache' ); ?></strong> <span class="setting-description"><?php _e( 'WP Cache and Super Cache enabled', 'wp-super-cache' ); ?></span></label><br />

	<label><input type='radio' name='wp_cache_status' value='wpcache' <?php if( $cache_enabled == true && $super_cache_enabled == false ) { echo 'checked=checked'; } ?>> <strong><?php _e( 'HALF ON', 'wp-super-cache' ); ?></strong> <span class="setting-description"><?php _e( 'Super Cache Disabled, only legacy WP-Cache caching.', 'wp-super-cache' ); ?></span></label><br />

	<label><input type='radio' name='wp_cache_status' value='none' <?php if( $cache_enabled == false ) { echo 'checked=checked'; } ?>> <strong><?php _e( 'OFF', 'wp-super-cache' ); ?></strong> <span class="setting-description"><?php _e( 'WP Cache and Super Cache disabled', 'wp-super-cache' ); ?></span></label><br />

	<p><label><input type='checkbox' name='wp_cache_not_logged_in' <?php if( $wp_cache_not_logged_in ) echo "checked"; ?> value='1'> <?php _e( 'Don&#8217;t cache pages for logged in users.', 'wp-super-cache' ); ?></label></p>

	<p><label><input type='checkbox' name='wp_cache_hello_world' <?php if( $wp_cache_hello_world ) echo "checked"; ?> value='1'> <?php _e( 'Proudly tell the world your server is Digg proof! (places a message in your blog&#8217;s footer)', 'wp-super-cache' ); ?></label></p>

	<p><label><input type='checkbox' name='wp_cache_clear_on_post_edit' <?php if( $wp_cache_clear_on_post_edit ) echo "checked"; ?> value='1'> <?php _e( 'Clear all cache files when a post or page is published. (This may significantly slow down saving of posts.)', 'wp-super-cache' ); ?></label></p>

	<p><label><input type='checkbox' name='cache_rebuild_files' <?php if( $cache_rebuild_files ) echo "checked"; ?> value='1'> <?php _e( 'Cache rebuild. Serve a supercache file to anonymous users while a new file is being generated. Recommended for <em>very</em> busy websites with lots of comments. Makes "directly cached pages" and "Lockdown mode" obsolete.', 'wp-super-cache' ); ?></label></p>

	<?php if( false == defined( 'WPSC_DISABLE_LOCKING' ) ) { ?>

		<p><label><input type='checkbox' name='wp_cache_mutex_disabled' <?php if( !$wp_cache_mutex_disabled ) echo "checked"; ?> value='0'> <?php _e( 'Coarse file locking. You probably don&#8217;t need this but it may help if your server is underpowered. Warning! <em>May cause your server to lock up in very rare cases!</em>', 'wp-super-cache' ); ?></label></p>

	<?php } ?>

	<p><label><input type='checkbox' name='wp_supercache_cache_list' <?php if( $wp_supercache_cache_list ) echo "checked"; ?> value='1'> <?php _e( 'List the newest cached pages (may be expensive to run on busy sites, use with caution.)', 'wp-super-cache' ); ?></label>

	<p><label><input type='checkbox' name='wp_cache_mobile_enabled' <?php if( $wp_cache_mobile_enabled ) echo "checked"; ?> value='1'> <?php _e( 'Mobile device support.', 'wp-super-cache' ); ?></label>

	<?php

	$home_path = trailingslashit( get_home_path() );

	$scrules = implode( "\n", extract_from_markers( $home_path.'.htaccess', 'WPSuperCache' ) );

	if ( !$wp_cache_mobile_enabled && strpos( $scrules, '240x320|AvantGo|BlackBerry|Blazer|Cellphone|Danger|DoCoMo' ) ) {

		echo "<blockquote style='background-color:#feefb3; padding: 5px; margin: 5px;'><h4>" . __( 'Mobile rewrite rules detected', 'wp-super-cache' ) . "</h4>";

		echo "<p>" . __( 'For best performance you should enable "Mobile device support" or delete the mobile rewrite rules in your .htaccess. Look for the 2 lines with the text "Android|2.0\ MMP|240x320|AvantGo|BlackBerry|Blazer|Cellphone" and delete those.', 'wp-super-cache' ) . "</p><p>" . __( 'This will have no affect on ordinary users but mobile users will see uncached pages.', 'wp-super-cache' ) . "</p></blockquote>";

	} elseif ( $wp_cache_mobile_enabled && $scrules != '' && false === strpos( $scrules, '240x320|AvantGo|BlackBerry|Blazer|Cellphone|Danger|DoCoMo' ) ) {

	?>

	<blockquote style='background-color:#fefeb3; padding: 5px; margin: 5px;'><p><?php _e( 'Mobile support requires extra rules in your .htaccess file, or you can set the plugin to half-on mode. Here are your options (in order of difficulty):', 'wp-super-cache' ); ?>

	<ol><li> 1. <?php _e( 'Set the plugin to half on mode and enable mobile support.', 'wp-super-cache' ); ?></li>

	<li> 2. <?php printf( __( 'Delete the plugin mod_rewrite rules in %s.htaccess enclosed by <code># BEGIN WPSuperCache</code> and <code># END WPSuperCache</code> and let the plugin regenerate them by reloading this page.', 'wp-super-cache' ), $home_path ); ?></li>

	<li> 3. <?php printf( __( 'Add the rules yourself. Edit %s.htaccess and find the block of code enclosed by the lines <code># BEGIN WPSuperCache</code> and <code># END WPSuperCache</code>. There are two sections that look very similar. Just below the line <code>%{HTTP:Cookie} !^.*(comment_author_|wordpress|wp-postpass_).*$</code> add this line: (do it twice, once for each section)', 'wp-super-cache' ), $home_path ); ?></p>

	<div style='padding: 2px; margin: 2px; border: 1px solid #333; width:400px; overflow: scroll'><pre>RewriteCond %{HTTP_user_agent} !^.*(Android|2.0\ MMP|240x320|AvantGo|BlackBerry|Blazer|Cellphone|Danger|DoCoMo|Elaine/3.0|EudoraWeb|hiptop|IEMobile|iPhone|iPod|KYOCERA/WX310K|LG/U990|MIDP-2.0|MMEF20|MOT-V|NetFront|Newt|Nintendo\ Wii|Nitro|Nokia|Opera\ Mini|Palm|Playstation\ Portable|portalmmm|Proxinet|ProxiNet|SHARP-TQ-GX10|Small|SonyEricsson|Symbian\ OS|SymbianOS|TS21i-10|UP.Browser|UP.Link|Windows\ CE|WinWAP).*</pre></div></li></ol></blockquote>

	<?php } ?>

	<p><strong><?php _e( 'Note:', 'wp-super-cache' ); ?></strong> <?php printf( __( 'If uninstalling this plugin, make sure the directory <em>%s</em> is writeable by the webserver so the files <em>advanced-cache.php</em> and <em>cache-config.php</em> can be deleted automatically. (Making sure those files are writeable too is probably a good idea!)', 'wp-super-cache' ), WP_CONTENT_DIR ); ?></p>

	<p><?php printf( __( 'Uninstall using the <a href="%1$s/wp-super-cache/uninstall.php">uninstall script</a> to remove files and directories created by the plugin. (Please see <a href="%1$s/wp-super-cache/readme.txt">readme.txt</a> for instructions on uninstalling this script.)', 'wp-super-cache' ), WP_PLUGIN_URL ); ?></p>

	<?php

	echo "<div class='submit'><input type='submit' " . SUBMITDISABLED . " value='" . __( 'Update Status', 'wp-super-cache' ) . " &raquo;' /></div>";

	wp_nonce_field('wp-cache');

	?>

	</form>

	<?php

	if( $super_cache_enabled && function_exists( 'apache_get_modules' ) ) {

		$mods = apache_get_modules();

		$required_modules = array( 'mod_mime' => __( 'Required to serve compressed supercache files properly.', 'wp-super-cache' ), 'mod_headers' => __( 'Required to set caching information on supercache pages. IE7 users will see old pages without this module.', 'wp-super-cache' ), 'mod_expires' => __( 'Set the expiry date on supercached pages. Visitors may not see new pages when they refresh or leave comments without this module.', 'wp-super-cache' ) );

		foreach( $required_modules as $req => $desc ) {

			if( !in_array( $req, $mods ) ) {

				$missing_mods[ $req ] = $desc;

			}

		}

		if( isset( $missing_mods) && is_array( $missing_mods ) ) {

			echo "<h3>" . __( 'Missing Apache Modules', 'wp-super-cache' ) . "</h3>";

			echo "<p>" . __( 'The following Apache modules are missing. The plugin will work in half-on mode without them. In full Supercache mode, your visitors may see corrupted pages or out of date content however.', 'wp-super-cache' ) . "</p>";

			echo "<ul>";

			foreach( $missing_mods as $req => $desc ) {

				echo "<li> $req - $desc</li>";

			}

			echo "</ul>";

		}

	}

	?>

	</fieldset>

	</td><td valign='top'>

	<div style='background: #ffc; border: 1px solid #333; margin: 2px; padding: 5px'>

	<h3 align='center'><?php _e( 'Make WordPress Faster', 'wp-super-cache' ); ?></h3>

	<?php if( $wp_cache_hide_donation != 1 ) { ?>

	<p><?php printf( __( '%1$s really makes your blog go faster. Make it go faster<sup>*</sup> by buying me an <a href="%2$s">Amazon gift card</a>! Make it out to "%3$s" for whatever amount you want. Every penny helps!', 'wp-super-cache' ), '<a href="http://ocaoimh.ie/wp-super-cache/?r=wpsc">WP Super Cache</a>', 'http://ocaoimh.ie/agc', 'donncha@ocaoimh.ie' ) ?>;</p>

	<p><?php printf( __( 'If Amazon isn&#8217;t your thing, there&#8217;s also PayPal. Click the "Donate" button below or take a quick peek at my <a href="%s">wishlist</a>.', 'wp-super-cache' ), 'http://ocaoimh.ie/wish' ); ?></p>

	<p><?php _e( 'Thanks in advance!', 'wp-super-cache' ); ?><br />Donncha<br />

	<small>* <?php _e( 'Ok, it won&#8217;t go any faster but you&#8217;ll make this plugin author very happy!', 'wp-super-cache' ); ?></small></p>

	<div align='center'>

	<form action="https://www.paypal.com/cgi-bin/webscr" method="post">

	<input type="hidden" name="cmd" value="_s-xclick"/>

	<input type="hidden" name="hosted_button_id" value="3244504"/>

	<input type="image" src="https://www.paypal.com/en_GB/i/btn/btn_donate_SM.gif" border="0" name="submit" alt=""/>

	<img alt="" border="0" src="https://www.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1"/><br />

	</form>

	<p><?php _e( 'Don&#8217;t show me this again.', 'wp-super-cache' ); ?> <form action="#top" method="post"><input type='hidden' name='wp_cache_hide_donation' value='1' /><input type='submit' value='<?php _e( 'Hide', 'wp-super-cache' ); ?>' /><?php wp_nonce_field('wp-cache'); ?></form></p>

	</div>

	<?php } else { ?>

	<p><?php printf( __( '%1$s is maintained and developed by %2$s with contributions from many others.', 'wp-super-cache' ), '<a href="http://ocaoimh.ie/wp-super-cache/?r=supercache">WP Super Cache</a>', '<a href="http://ocaoimh.ie/?r=supercache">Donncha O Caoimh</a>' ); ?></p>

	<p><?php printf( __( 'He blogs at %1$s, posts photos at %2$s and <a href="%3$s">wishes</a> he had more time to read and relax.', 'wp-super-cache' ), '<a href="http://ocaoimh.ie/?r=supercache">Holy Shmoly</a>', '<a href="http://inphotos.org/?r=supercache">In Photos.org</a>', 'http://ocaoimh.ie/gad' ); ?></p>

	<p><?php printf( __( 'Please say hi to him on %s too!', 'wp-super-cache' ), '<a href="http://twitter.com/donncha/">Twitter</a>' ); ?></p>

	<?php 

	}

	if ( isset( $wp_supercache_cache_list ) && $wp_supercache_cache_list ) { 

		$start_date = get_option( 'wpsupercache_start' );

		if ( !$start_date ) {

			$start_date = time();

		}

		?>

		<p><?php printf( __( 'Cached pages since %1$s : <strong>%2$s</strong>', 'wp-super-cache' ), date( 'M j, Y', $start_date ), number_format( get_option( 'wpsupercache_count' ) ) ); ?></p>

		<p><?php _e( 'Newest Cached Pages:', 'wp-super-cache' ); ?><ol>

		<?php

		foreach( array_reverse( (array)get_option( 'supercache_last_cached' ) ) as $url ) {

			$since = time() - strtotime( $url[ 'date' ] );

			echo "<li><a title='" . sprintf( __( 'Cached %s seconds ago', 'wp-super-cache' ), $since ) . "' href='" . site_url( $url[ 'url' ] ) . "'>{$url[ 'url' ]}</a></li>\n";

		}

		?></ol>

		<small><?php _e( '(may not always be accurate on busy sites)', 'wp-super-cache' ); ?></small>

		</p><?php 

	} else {

		$start_date = get_option( 'wpsupercache_start' );

		if ( $start_date ) {

			update_option( 'wpsupercache_start', $start_date );

			update_option( 'wpsupercache_count', 0 );

		}

	}

	?>

	</div>

	</td></table>

	<?php

	wp_cache_files();

	wsc_mod_rewrite();

	wp_cache_edit_max_time();

	echo '<a name="files"></a><fieldset class="options"><h3>' . __( 'Accepted Filenames &amp; Rejected URIs', 'wp-super-cache' ) . '</h3>';

	wp_cache_edit_rejected_pages();

	echo "\n";

	wp_cache_edit_rejected();

	echo "\n";

	wp_cache_edit_accepted();

	echo '</fieldset>';

	wp_cache_edit_rejected_ua();

	wp_cache_debug_settings();

	wp_lock_down();

	wp_cache_restore();

	ob_start();

	if( defined( 'WP_CACHE' ) ) {

		if( function_exists( 'do_cacheaction' ) ) {

			do_cacheaction( 'cache_admin_page' );

		}

	}

	$out = ob_get_contents();

	ob_end_clean();

	if( SUBMITDISABLED == ' ' && $out != '' ) {

		echo '<fieldset class="options"><h3>' . __( 'Cache Plugins', 'wp-super-cache' ) . '</h3>';

		echo $out;

		echo '</fieldset>';

	}

	echo "</div>\n";

}

function wsc_mod_rewrite() {

	global $cache_enabled, $super_cache_enabled, $cache_compression, $cache_compression_changed, $valid_nonce, $cache_path;

	if( $super_cache_enabled == false && $cache_enabled == true ) {

		?><h3><?php _e( 'Super Cache Compression', 'wp-super-cache' ); ?></h3>

		<p><?php _e( 'Compression is enabled by default when in <em>HALF ON</em> mode.', 'wp-super-cache' ); ?></p>

		<?php

		return;

	} elseif ( $super_cache_enabled == false ) {

		return;

	}

	if( false == defined( 'WPSC_DISABLE_COMPRESSION' ) ) {

	?>

	<a name='rewrite'></a>

	<fieldset class="options"> 

	<h3><?php _e( 'Super Cache Compression', 'wp-super-cache' ); ?></h3>

	<form name="wp_manager" action="#rewrite" method="post">

	<label><input type="radio" name="cache_compression" value="1" <?php if( $cache_compression ) { echo "checked=checked"; } ?>> <?php _e( 'Enabled', 'wp-super-cache' ); ?></label>

	<label><input type="radio" name="cache_compression" value="0" <?php if( !$cache_compression ) { echo "checked=checked"; } ?>> <?php _e( 'Disabled', 'wp-super-cache' ); ?></label>

	<p><?php _e( 'Compression is disabled by default because some hosts have problems with compressed files. Switching this on and off clears the cache.', 'wp-super-cache' ); ?></p>

	<?php

	if( isset( $cache_compression_changed ) && isset( $_POST[ 'cache_compression' ] ) && !$cache_compression ) {

		?><p><strong><?php _e( 'Super Cache compression is now disabled.', 'wp-super-cache' ); ?></strong></p> <?php

	} elseif( isset( $cache_compression_changed ) && isset( $_POST[ 'cache_compression' ] ) && $cache_compression ) {

		?><p><strong><?php _e( 'Super Cache compression is now enabled.', 'wps-uper-cache' ); ?></strong></p><?php

	}

	echo '<div class="submit"><input ' . SUBMITDISABLED . 'type="submit" value="' . __( 'Update Compression', 'wp-super-cache' ) . ' &raquo;" /></div>';

	wp_nonce_field('wp-cache');

	echo "</form>\n";