<?php

/**

 * Update Core administration panel.

 *

 * @package WordPress

 * @subpackage Administration

 */

/** WordPress Administration Bootstrap */

require_once('admin.php');

if ( ! current_user_can('update_plugins') )

	wp_die(__('You do not have sufficient permissions to update plugins for this blog.'));

function list_core_update( $update ) {

	global $wp_local_package;

	$version_string = ('en_US' == $update->locale && 'en_US' == get_locale() ) ?

			$update->current : sprintf("%s&ndash;<strong>%s</strong>", $update->current, $update->locale);

	$current = false;

	if ( !isset($update->response) || 'latest' == $update->response )

		$current = true;

	$submit = __('Upgrade Automatically');

	$form_action = 'update-core.php?action=do-core-upgrade';

	if ( 'development' == $update->response ) {

		$message = __('You are using a development version of WordPress.  You can upgrade to the latest nightly build automatically or download the nightly build and install it manually:');

		$download = __('Download nightly build');

	} else {

		if ( $current ) {

			$message = sprintf(__('You have the latest version of WordPress. You do not need to upgrade. However, if you want to re-install version %s, you can do so automatically or download the package and re-install manually:'), $version_string);

			$submit = __('Re-install Automatically');

			$form_action = 'update-core.php?action=do-core-reinstall';

		} else {

			$message = 	sprintf(__('You can upgrade to version %s automatically or download the package and install it manually:'), $version_string);

		}

		$download = sprintf(__('Download %s'), $version_string);

	}

	echo '<p>';

	echo $message;

	echo '</p>';

	echo '<form method="post" action="' . $form_action . '" name="upgrade" class="upgrade">';

	wp_nonce_field('upgrade-core');

	echo '<p>';

	echo '<input id="upgrade" class="button" type="submit" value="' . esc_attr($submit) . '" name="upgrade" />&nbsp;';

	echo '<input name="version" value="'. esc_attr($update->current) .'" type="hidden"/>';

	echo '<input name="locale" value="'. esc_attr($update->locale) .'" type="hidden"/>';

	echo '<a href="' . esc_url($update->package) . '" class="button">' . $download . '</a>&nbsp;';

	if ( 'en_US' != $update->locale )

		if ( !isset( $update->dismissed ) || !$update->dismissed )

			echo '<input id="dismiss" class="button" type="submit" value="' . esc_attr__('Hide this update') . '" name="dismiss" />';

		else

			echo '<input id="undismiss" class="button" type="submit" value="' . esc_attr__('Bring back this update') . '" name="undismiss" />';

	echo '</p>';

	if ( 'en_US' != $update->locale && ( !isset($wp_local_package) || $wp_local_package != $update->locale ) )

	    echo '<p class="hint">'.__('This localized version contains both the translation and various other localization fixes. You can skip upgrading if you want to keep your current translation.').'</p>';

	else if ( 'en_US' == $update->locale && get_locale() != 'en_US' ) {

	    echo '<p class="hint">'.sprintf( __('You are about to install WordPress %s <strong>in English.</strong> There is a chance this upgrade will break your translation. You may prefer to wait for the localized version to be released.'), $update->current ).'</p>';

	}

	echo '</form>';

}

function dismissed_updates() {

	$dismissed = get_core_updates( array( 'dismissed' => true, 'available' => false ) );

	if ( $dismissed ) {

		$show_text = esc_js(__('Show hidden updates'));

		$hide_text = esc_js(__('Hide hidden updates'));

	?>

	<script type="text/javascript">

		jQuery(function($) {

			$('dismissed-updates').show();

			$('#show-dismissed').toggle(function(){$(this).text('<?php echo $hide_text; ?>');}, function() {$(this).text('<?php echo $show_text; ?>')});

			$('#show-dismissed').click(function() { $('#dismissed-updates').toggle('slow');});

		});

	</script>

	<?php

		echo '<p class="hide-if-no-js"><a id="show-dismissed" href="#">'.__('Show hidden updates').'</a></p>';

		echo '<ul id="dismissed-updates" class="core-updates dismissed">';

		foreach( (array) $dismissed as $update) {

			echo '<li>';

			list_core_update( $update );

			echo '</li>';

		}

		echo '</ul>';

	}

}

/**

 * Display upgrade WordPress for downloading latest or upgrading automatically form.

 *

 * @since 2.7

 *

 * @return null

 */

function core_upgrade_preamble() {

	$updates = get_core_updates();

?>

	<div class="wrap">

	<?php screen_icon(); ?>

	<h2><?php _e('Upgrade WordPress'); ?></h2>

<?php

	if ( !isset($updates[0]->response) || 'latest' == $updates[0]->response ) {

		echo '<h3>';

		_e('You have the latest version of WordPress. You do not need to upgrade');

		echo '</h3>';

	} else {

		echo '<div class="updated fade"><p>';

		_e('<strong>Important:</strong> before upgrading, please <a href="http://codex.wordpress.org/WordPress_Backups">backup your database and files</a>.');

		echo '</p></div>';

		echo '<h3 class="response">';

		_e( 'There is a new version of WordPress available for upgrade' );

		echo '</h3>';

	}

	echo '<ul class="core-updates">';

	$alternate = true;

	foreach( (array) $updates as $update ) {

		$class = $alternate? ' class="alternate"' : '';

		$alternate = !$alternate;

		echo "<li $class>";

		list_core_update( $update );

		echo '</li>';

	}

	echo '</ul>';

	dismissed_updates();

	echo '</div>';

}

/**

 * Upgrade WordPress core display.

 *

 * @since 2.7

 *

 * @return null

 */

function do_core_upgrade( $reinstall = false ) {

	global $wp_filesystem;

	if ( $reinstall )

		$url = 'update-core.php?action=do-core-reinstall';

	else

		$url = 'update-core.php?action=do-core-upgrade';

	$url = wp_nonce_url($url, 'upgrade-core');

	if ( false === ($credentials = request_filesystem_credentials($url, '', false, ABSPATH)) )

		return;

	$version = isset( $_POST['version'] )? $_POST['version'] : false;

	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';

	$update = find_core_update( $version, $locale );

	if ( !$update )

		return;

	if ( ! WP_Filesystem($credentials, ABSPATH) ) {

		request_filesystem_credentials($url, '', true, ABSPATH); //Failed to connect, Error and request again

		return;

	}

?>

	<div class="wrap">

	<?php screen_icon(); ?>

	<h2><?php _e('Upgrade WordPress'); ?></h2>

<?php

	if ( $wp_filesystem->errors->get_error_code() ) {

		foreach ( $wp_filesystem->errors->get_error_messages() as $message )

			show_message($message);

		echo '</div>';

		return;

	}

	if ( $reinstall )

		$update->response = 'reinstall';

	$result = wp_update_core($update, 'show_message');

	if ( is_wp_error($result) ) {

		show_message($result);

		if ('up_to_date' != $result->get_error_code() )

			show_message( __('Installation Failed') );

	} else {

		show_message( __('WordPress upgraded successfully') );

	}

	echo '</div>';

}

function do_dismiss_core_update() {

	$version = isset( $_POST['version'] )? $_POST['version'] : false;

	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';

	$update = find_core_update( $version, $locale );

	if ( !$update )

		return;

	dismiss_core_update( $update );

	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );

}

function do_undismiss_core_update() {

	$version = isset( $_POST['version'] )? $_POST['version'] : false;

	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';

	$update = find_core_update( $version, $locale );

	if ( !$update )

		return;

	undismiss_core_update( $version, $locale );

	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );

}

$action = isset($_GET['action']) ? $_GET['action'] : 'upgrade-core';

if ( 'upgrade-core' == $action ) {

	wp_version_check();

	$title = __('Upgrade WordPress');

	$parent_file = 'tools.php';

	require_once('admin-header.php');

	core_upgrade_preamble();

	include('admin-footer.php');

} elseif ( 'do-core-upgrade' == $action || 'do-core-reinstall' == $action ) {

	check_admin_referer('upgrade-core');

	$title = __('Upgrade WordPress');

	$parent_file = 'tools.php';

	// do the (un)dismiss actions before headers,

	// so that they can redirect

	if ( isset( $_POST['dismiss'] ) )

		do_dismiss_core_update();

	elseif ( isset( $_POST['undismiss'] ) )

	do_undismiss_core_update();

	require_once('admin-header.php');

	if ( 'do-core-reinstall' == $action )

		$reinstall = true;

	else

		$reinstall = false;

	if ( isset( $_POST['upgrade'] ) )

		do_core_upgrade($reinstall);

	include('admin-footer.php');

}?>