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/wp-admin/update-core.php

https://bitbucket.org/jcsarda/wordpress-dotcloud-deployable
PHP | 545 lines | 446 code | 72 blank | 27 comment | 102 complexity | 287cf0161a8348b72cb62c5d96180b70 MD5 | raw file
  1<?php
  2/**
  3 * Update Core administration panel.
  4 *
  5 * @package WordPress
  6 * @subpackage Administration
  7 */
  8
  9/** WordPress Administration Bootstrap */
 10require_once('./admin.php');
 11
 12wp_enqueue_style( 'plugin-install' );
 13wp_enqueue_script( 'plugin-install' );
 14add_thickbox();
 15
 16if ( is_multisite() && ! is_network_admin() ) {
 17	wp_redirect( network_admin_url( 'update-core.php' ) );
 18	exit();
 19}
 20
 21if ( ! current_user_can( 'update_core' ) )
 22	wp_die( __( 'You do not have sufficient permissions to update this site.' ) );
 23
 24function list_core_update( $update ) {
 25	global $wp_local_package, $wpdb;
 26	static $first_pass = true;
 27
 28	$version_string = ('en_US' == $update->locale && 'en_US' == get_locale() ) ?
 29			$update->current : sprintf("%s&ndash;<strong>%s</strong>", $update->current, $update->locale);
 30	$current = false;
 31	if ( !isset($update->response) || 'latest' == $update->response )
 32		$current = true;
 33	$submit = __('Update Now');
 34	$form_action = 'update-core.php?action=do-core-upgrade';
 35	$php_version    = phpversion();
 36	$mysql_version  = $wpdb->db_version();
 37	$show_buttons = true;
 38	if ( 'development' == $update->response ) {
 39		$message = __('You are using a development version of WordPress.  You can update to the latest nightly build automatically or download the nightly build and install it manually:');
 40		$download = __('Download nightly build');
 41	} else {
 42		if ( $current ) {
 43			$message = sprintf(__('You have the latest version of WordPress. You do not need to update. However, if you want to re-install version %s, you can do so automatically or download the package and re-install manually:'), $version_string);
 44			$submit = __('Re-install Now');
 45			$form_action = 'update-core.php?action=do-core-reinstall';
 46		} else {
 47			$php_compat     = version_compare( $php_version, $update->php_version, '>=' );
 48			if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) )
 49				$mysql_compat = true;
 50			else
 51				$mysql_compat = version_compare( $mysql_version, $update->mysql_version, '>=' );
 52
 53			if ( !$mysql_compat && !$php_compat )
 54				$message = sprintf( __('You cannot update because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher and MySQL version %3$s or higher. You are running PHP version %4$s and MySQL version %5$s.'), $update->current, $update->php_version, $update->mysql_version, $php_version, $mysql_version );
 55			elseif ( !$php_compat )
 56				$message = sprintf( __('You cannot update because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher. You are running version %3$s.'), $update->current, $update->php_version, $php_version );
 57			elseif ( !$mysql_compat )
 58				$message = sprintf( __('You cannot update because <a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires MySQL version %2$s or higher. You are running version %3$s.'), $update->current, $update->mysql_version, $mysql_version );
 59			else
 60				$message = 	sprintf(__('You can update to <a href="http://codex.wordpress.org/Version_%1$s">WordPress %2$s</a> automatically or download the package and install it manually:'), $update->current, $version_string);
 61			if ( !$mysql_compat || !$php_compat )
 62				$show_buttons = false;
 63		}
 64		$download = sprintf(__('Download %s'), $version_string);
 65	}
 66
 67	echo '<p>';
 68	echo $message;
 69	echo '</p>';
 70	echo '<form method="post" action="' . $form_action . '" name="upgrade" class="upgrade">';
 71	wp_nonce_field('upgrade-core');
 72	echo '<p>';
 73	echo '<input name="version" value="'. esc_attr($update->current) .'" type="hidden"/>';
 74	echo '<input name="locale" value="'. esc_attr($update->locale) .'" type="hidden"/>';
 75	if ( $show_buttons ) {
 76		if ( $first_pass ) {
 77			submit_button( $submit, $current ? 'button' : 'primary', 'upgrade', false );
 78			$first_pass = false;
 79		} else {
 80			submit_button( $submit, 'button', 'upgrade', false );
 81		}
 82		echo '&nbsp;<a href="' . esc_url( $update->download ) . '" class="button">' . $download . '</a>&nbsp;';
 83	}
 84	if ( 'en_US' != $update->locale )
 85		if ( !isset( $update->dismissed ) || !$update->dismissed )
 86			submit_button( __('Hide this update'), 'button', 'dismiss', false );
 87		else
 88			submit_button( __('Bring back this update'), 'button', 'undismiss', false );
 89	echo '</p>';
 90	if ( 'en_US' != $update->locale && ( !isset($wp_local_package) || $wp_local_package != $update->locale ) )
 91	    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>';
 92	else if ( 'en_US' == $update->locale && get_locale() != 'en_US' ) {
 93	    echo '<p class="hint">'.sprintf( __('You are about to install WordPress %s <strong>in English (US).</strong> There is a chance this update will break your translation. You may prefer to wait for the localized version to be released.'), $update->response != 'development' ? $update->current : '' ).'</p>';
 94	}
 95	echo '</form>';
 96
 97}
 98
 99function dismissed_updates() {
100	$dismissed = get_core_updates( array( 'dismissed' => true, 'available' => false ) );
101	if ( $dismissed ) {
102
103		$show_text = esc_js(__('Show hidden updates'));
104		$hide_text = esc_js(__('Hide hidden updates'));
105	?>
106	<script type="text/javascript">
107
108		jQuery(function($) {
109			$('dismissed-updates').show();
110			$('#show-dismissed').toggle(function(){$(this).text('<?php echo $hide_text; ?>');}, function() {$(this).text('<?php echo $show_text; ?>')});
111			$('#show-dismissed').click(function() { $('#dismissed-updates').toggle('slow');});
112		});
113	</script>
114	<?php
115		echo '<p class="hide-if-no-js"><a id="show-dismissed" href="#">'.__('Show hidden updates').'</a></p>';
116		echo '<ul id="dismissed-updates" class="core-updates dismissed">';
117		foreach( (array) $dismissed as $update) {
118			echo '<li>';
119			list_core_update( $update );
120			echo '</li>';
121		}
122		echo '</ul>';
123	}
124}
125
126/**
127 * Display upgrade WordPress for downloading latest or upgrading automatically form.
128 *
129 * @since 2.7
130 *
131 * @return null
132 */
133function core_upgrade_preamble() {
134	global $upgrade_error, $wp_version;
135
136	$updates = get_core_updates();
137?>
138	<div class="wrap">
139	<?php screen_icon('tools'); ?>
140	<h2><?php _e('WordPress Updates'); ?></h2>
141<?php
142	if ( $upgrade_error ) {
143		echo '<div class="error"><p>';
144		if ( $upgrade_error == 'themes' )
145			_e('Please select one or more themes to update.');
146		else
147			_e('Please select one or more plugins to update.');
148		echo '</p></div>';
149	}
150
151	echo '<p>';
152	/* translators: %1 date, %2 time. */
153	printf( __('Last checked on %1$s at %2$s.'), date_i18n( get_option( 'date_format' ) ), date_i18n( get_option( 'time_format' ) ) );
154	echo ' &nbsp; <a class="button" href="' . esc_url( self_admin_url('update-core.php') ) . '">' . __( 'Check Again' ) . '</a>';
155	echo '</p>';
156
157	if ( !isset($updates[0]->response) || 'latest' == $updates[0]->response ) {
158		echo '<h3>';
159		_e('You have the latest version of WordPress.');
160		echo '</h3>';
161	} else {
162		echo '<div class="updated inline"><p>';
163		_e('<strong>Important:</strong> before updating, please <a href="http://codex.wordpress.org/WordPress_Backups">back up your database and files</a>. For help with updates, visit the <a href="http://codex.wordpress.org/Updating_WordPress">Updating WordPress</a> Codex page.');
164		echo '</p></div>';
165
166		echo '<h3 class="response">';
167		_e( 'An updated version of WordPress is available.' );
168		echo '</h3>';
169	}
170
171	echo '<ul class="core-updates">';
172	$alternate = true;
173	foreach( (array) $updates as $update ) {
174		echo '<li>';
175		list_core_update( $update );
176		echo '</li>';
177	}
178	echo '</ul>';
179	if ( $updates ) {
180		echo '<p>' . __( 'While your site is being updated, it will be in maintenance mode. As soon as your updates are complete, your site will return to normal.' ) . '</p>';
181	} else {
182		list( $normalized_version ) = explode( '-', $wp_version );
183		echo '<p>' . sprintf( __( '<a href="%s">Learn more about WordPress %s</a>.' ), esc_url( admin_url( 'about.php' ) ), $normalized_version ) . '</p>';
184	}
185	dismissed_updates();
186
187	if ( current_user_can( 'update_plugins' ) )
188		list_plugin_updates();
189	if ( current_user_can( 'update_themes' ) )
190		list_theme_updates();
191	do_action('core_upgrade_preamble');
192	echo '</div>';
193}
194
195function list_plugin_updates() {
196	global $wp_version;
197
198	$cur_wp_version = preg_replace('/-.*$/', '', $wp_version);
199
200	require_once(ABSPATH . 'wp-admin/includes/plugin-install.php');
201	$plugins = get_plugin_updates();
202	if ( empty( $plugins ) ) {
203		echo '<h3>' . __( 'Plugins' ) . '</h3>';
204		echo '<p>' . __( 'Your plugins are all up to date.' ) . '</p>';
205		return;
206	}
207	$form_action = 'update-core.php?action=do-plugin-upgrade';
208
209	$core_updates = get_core_updates();
210	if ( !isset($core_updates[0]->response) || 'latest' == $core_updates[0]->response || 'development' == $core_updates[0]->response || version_compare( $core_updates[0]->current, $cur_wp_version, '=') )
211		$core_update_version = false;
212	else
213		$core_update_version = $core_updates[0]->current;
214	?>
215<h3><?php _e( 'Plugins' ); ?></h3>
216<p><?php _e( 'The following plugins have new versions available. Check the ones you want to update and then click &#8220;Update Plugins&#8221;.' ); ?></p>
217<form method="post" action="<?php echo $form_action; ?>" name="upgrade-plugins" class="upgrade">
218<?php wp_nonce_field('upgrade-core'); ?>
219<p><input id="upgrade-plugins" class="button" type="submit" value="<?php esc_attr_e('Update Plugins'); ?>" name="upgrade" /></p>
220<table class="widefat" cellspacing="0" id="update-plugins-table">
221	<thead>
222	<tr>
223		<th scope="col" class="manage-column check-column"><input type="checkbox" id="plugins-select-all" /></th>
224		<th scope="col" class="manage-column"><label for="plugins-select-all"><?php _e('Select All'); ?></label></th>
225	</tr>
226	</thead>
227
228	<tfoot>
229	<tr>
230		<th scope="col" class="manage-column check-column"><input type="checkbox" id="plugins-select-all-2" /></th>
231		<th scope="col" class="manage-column"><label for="plugins-select-all-2"><?php _e('Select All'); ?></label></th>
232	</tr>
233	</tfoot>
234	<tbody class="plugins">
235<?php
236	foreach ( (array) $plugins as $plugin_file => $plugin_data) {
237		$info = plugins_api('plugin_information', array('slug' => $plugin_data->update->slug ));
238		// Get plugin compat for running version of WordPress.
239		if ( isset($info->tested) && version_compare($info->tested, $cur_wp_version, '>=') ) {
240			$compat = '<br />' . sprintf(__('Compatibility with WordPress %1$s: 100%% (according to its author)'), $cur_wp_version);
241		} elseif ( isset($info->compatibility[$cur_wp_version][$plugin_data->update->new_version]) ) {
242			$compat = $info->compatibility[$cur_wp_version][$plugin_data->update->new_version];
243			$compat = '<br />' . sprintf(__('Compatibility with WordPress %1$s: %2$d%% (%3$d "works" votes out of %4$d total)'), $cur_wp_version, $compat[0], $compat[2], $compat[1]);
244		} else {
245			$compat = '<br />' . sprintf(__('Compatibility with WordPress %1$s: Unknown'), $cur_wp_version);
246		}
247		// Get plugin compat for updated version of WordPress.
248		if ( $core_update_version ) {
249			if ( isset($info->compatibility[$core_update_version][$plugin_data->update->new_version]) ) {
250				$update_compat = $info->compatibility[$core_update_version][$plugin_data->update->new_version];
251				$compat .= '<br />' . sprintf(__('Compatibility with WordPress %1$s: %2$d%% (%3$d "works" votes out of %4$d total)'), $core_update_version, $update_compat[0], $update_compat[2], $update_compat[1]);
252			} else {
253				$compat .= '<br />' . sprintf(__('Compatibility with WordPress %1$s: Unknown'), $core_update_version);
254			}
255		}
256		// Get the upgrade notice for the new plugin version.
257		if ( isset($plugin_data->update->upgrade_notice) ) {
258			$upgrade_notice = '<br />' . strip_tags($plugin_data->update->upgrade_notice);
259		} else {
260			$upgrade_notice = '';
261		}
262
263		$details_url = self_admin_url('plugin-install.php?tab=plugin-information&plugin=' . $plugin_data->update->slug . '&TB_iframe=true&width=640&height=662');
264		$details_text = sprintf(__('View version %1$s details'), $plugin_data->update->new_version);
265		$details = sprintf('<a href="%1$s" class="thickbox" title="%2$s">%3$s</a>.', esc_url($details_url), esc_attr($plugin_data->Name), $details_text);
266
267		echo "
268	<tr class='active'>
269		<th scope='row' class='check-column'><input type='checkbox' name='checked[]' value='" . esc_attr($plugin_file) . "' /></th>
270		<td><p><strong>{$plugin_data->Name}</strong><br />" . sprintf(__('You have version %1$s installed. Update to %2$s.'), $plugin_data->Version, $plugin_data->update->new_version) . ' ' . $details . $compat . $upgrade_notice . "</p></td>
271	</tr>";
272	}
273?>
274	</tbody>
275</table>
276<p><input id="upgrade-plugins-2" class="button" type="submit" value="<?php esc_attr_e('Update Plugins'); ?>" name="upgrade" /></p>
277</form>
278<?php
279}
280
281function list_theme_updates() {
282	$themes = get_theme_updates();
283	if ( empty( $themes ) ) {
284		echo '<h3>' . __( 'Themes' ) . '</h3>';
285		echo '<p>' . __( 'Your themes are all up to date.' ) . '</p>';
286		return;
287	}
288
289	$form_action = 'update-core.php?action=do-theme-upgrade';
290
291?>
292<h3><?php _e( 'Themes' ); ?></h3>
293<p><?php _e( 'The following themes have new versions available. Check the ones you want to update and then click &#8220;Update Themes&#8221;.' ); ?></p>
294<p><?php printf( __('<strong>Please Note:</strong> Any customizations you have made to theme files will be lost. Please consider using <a href="%s">child themes</a> for modifications.'), _x('http://codex.wordpress.org/Child_Themes', 'Link used in suggestion to use child themes in GUU') ); ?></p>
295<form method="post" action="<?php echo $form_action; ?>" name="upgrade-themes" class="upgrade">
296<?php wp_nonce_field('upgrade-core'); ?>
297<p><input id="upgrade-themes" class="button" type="submit" value="<?php esc_attr_e('Update Themes'); ?>" name="upgrade" /></p>
298<table class="widefat" cellspacing="0" id="update-themes-table">
299	<thead>
300	<tr>
301		<th scope="col" class="manage-column check-column"><input type="checkbox" id="themes-select-all" /></th>
302		<th scope="col" class="manage-column"><label for="themes-select-all"><?php _e('Select All'); ?></label></th>
303	</tr>
304	</thead>
305
306	<tfoot>
307	<tr>
308		<th scope="col" class="manage-column check-column"><input type="checkbox" id="themes-select-all-2" /></th>
309		<th scope="col" class="manage-column"><label for="themes-select-all-2"><?php _e('Select All'); ?></label></th>
310	</tr>
311	</tfoot>
312	<tbody class="plugins">
313<?php
314	foreach ( (array) $themes as $stylesheet => $theme_data) {
315		$screenshot = $theme_data->{'Theme Root URI'} . '/' . $stylesheet . '/' . $theme_data->Screenshot;
316
317		echo "
318	<tr class='active'>
319		<th scope='row' class='check-column'><input type='checkbox' name='checked[]' value='" . esc_attr($stylesheet) . "' /></th>
320		<td class='plugin-title'><img src='$screenshot' width='64' height='64' style='float:left; padding: 0 5px 5px' /><strong>{$theme_data->Name}</strong>" .  sprintf(__('You have version %1$s installed. Update to %2$s.'), $theme_data->Version, $theme_data->update['new_version']) . "</td>
321	</tr>";
322	}
323?>
324	</tbody>
325</table>
326<p><input id="upgrade-themes-2" class="button" type="submit" value="<?php esc_attr_e('Update Themes'); ?>" name="upgrade" /></p>
327</form>
328<?php
329}
330
331/**
332 * Upgrade WordPress core display.
333 *
334 * @since 2.7
335 *
336 * @return null
337 */
338function do_core_upgrade( $reinstall = false ) {
339	global $wp_filesystem;
340
341	if ( $reinstall )
342		$url = 'update-core.php?action=do-core-reinstall';
343	else
344		$url = 'update-core.php?action=do-core-upgrade';
345	$url = wp_nonce_url($url, 'upgrade-core');
346	if ( false === ($credentials = request_filesystem_credentials($url, '', false, ABSPATH)) )
347		return;
348
349	$version = isset( $_POST['version'] )? $_POST['version'] : false;
350	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
351	$update = find_core_update( $version, $locale );
352	if ( !$update )
353		return;
354
355
356	if ( ! WP_Filesystem($credentials, ABSPATH) ) {
357		request_filesystem_credentials($url, '', true, ABSPATH); //Failed to connect, Error and request again
358		return;
359	}
360?>
361	<div class="wrap">
362	<?php screen_icon('tools'); ?>
363	<h2><?php _e('Update WordPress'); ?></h2>
364<?php
365	if ( $wp_filesystem->errors->get_error_code() ) {
366		foreach ( $wp_filesystem->errors->get_error_messages() as $message )
367			show_message($message);
368		echo '</div>';
369		return;
370	}
371
372	if ( $reinstall )
373		$update->response = 'reinstall';
374
375	$result = wp_update_core($update, 'show_message');
376
377	if ( is_wp_error($result) ) {
378		show_message($result);
379		if ('up_to_date' != $result->get_error_code() )
380			show_message( __('Installation Failed') );
381		echo '</div>';
382		return;
383	}
384
385	show_message( __('WordPress updated successfully') );
386	show_message( '<span class="hide-if-no-js">' . sprintf( __( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%s">here</a>.' ), $result, esc_url( admin_url( 'about.php?updated' ) ) ) . '</span>' );
387	show_message( '<span class="hide-if-js">' . sprintf( __( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ), $result, esc_url( admin_url( 'about.php?updated' ) ) ) . '</span>' );
388	?>
389	</div>
390	<script type="text/javascript">
391	window.location = '<?php echo admin_url( 'about.php?upgraded' ); ?>';
392	</script>
393	<?php
394}
395
396function do_dismiss_core_update() {
397	$version = isset( $_POST['version'] )? $_POST['version'] : false;
398	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
399	$update = find_core_update( $version, $locale );
400	if ( !$update )
401		return;
402	dismiss_core_update( $update );
403	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );
404	exit;
405}
406
407function do_undismiss_core_update() {
408	$version = isset( $_POST['version'] )? $_POST['version'] : false;
409	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
410	$update = find_core_update( $version, $locale );
411	if ( !$update )
412		return;
413	undismiss_core_update( $version, $locale );
414	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );
415	exit;
416}
417
418function no_update_actions($actions) {
419	return '';
420}
421
422$action = isset($_GET['action']) ? $_GET['action'] : 'upgrade-core';
423
424$upgrade_error = false;
425if ( ( 'do-theme-upgrade' == $action || ( 'do-plugin-upgrade' == $action && ! isset( $_GET['plugins'] ) ) )
426	&& ! isset( $_POST['checked'] ) ) {
427	$upgrade_error = $action == 'do-theme-upgrade' ? 'themes' : 'plugins';
428	$action = 'upgrade-core';
429}
430
431$title = __('WordPress Updates');
432$parent_file = 'tools.php';
433
434get_current_screen()->add_help_tab( array(
435'id'		=> 'overview',
436'title'		=> __('Overview'),
437'content'	=>
438	'<p>' . __('This screen lets you update to the latest version of WordPress as well as update your themes and plugins from the WordPress.org repository. When updates are available, the number of available updates will appear in a bubble on the left hand menu as a notification.') . '</p>' .
439	'<p>' . __('It is very important to keep your WordPress installation up to date for security reasons, so when you see a number appear, make sure you take the time to update, which is an easy process.') . '</p>'
440) );
441
442get_current_screen()->add_help_tab( array(
443'id'		=> 'how-to-update',
444'title'		=> __('How to Update'),
445'content'	=>
446	'<p>' . __('Updating your WordPress installation is a simple one-click procedure; just click on the Update button when it says a new version is available.') . '</p>' .
447	'<p>' . __('To update themes or plugins from this screen, use the checkboxes to make your selection and click on the appropriate Update button. Check the box at the top of the Themes or Plugins section to select all and update them all at once.') . '</p>'
448) );
449
450
451get_current_screen()->set_help_sidebar(
452	'<p><strong>' . __('For more information:') . '</strong></p>' .
453	'<p>' . __('<a href="http://codex.wordpress.org/Dashboard_Updates_Screen" target="_blank">Documentation on Updating WordPress</a>') . '</p>' .
454	'<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
455);
456
457if ( 'upgrade-core' == $action ) {
458
459	wp_version_check();
460	require_once(ABSPATH . 'wp-admin/admin-header.php');
461	core_upgrade_preamble();
462	include(ABSPATH . 'wp-admin/admin-footer.php');
463
464} elseif ( 'do-core-upgrade' == $action || 'do-core-reinstall' == $action ) {
465	check_admin_referer('upgrade-core');
466
467	// do the (un)dismiss actions before headers,
468	// so that they can redirect
469	if ( isset( $_POST['dismiss'] ) )
470		do_dismiss_core_update();
471	elseif ( isset( $_POST['undismiss'] ) )
472		do_undismiss_core_update();
473
474	require_once(ABSPATH . 'wp-admin/admin-header.php');
475	if ( 'do-core-reinstall' == $action )
476		$reinstall = true;
477	else
478		$reinstall = false;
479
480	if ( isset( $_POST['upgrade'] ) )
481		do_core_upgrade($reinstall);
482
483	include(ABSPATH . 'wp-admin/admin-footer.php');
484
485} elseif ( 'do-plugin-upgrade' == $action ) {
486
487	if ( ! current_user_can( 'update_plugins' ) )
488		wp_die( __( 'You do not have sufficient permissions to update this site.' ) );
489
490	check_admin_referer('upgrade-core');
491
492	if ( isset( $_GET['plugins'] ) ) {
493		$plugins = explode( ',', $_GET['plugins'] );
494	} elseif ( isset( $_POST['checked'] ) ) {
495		$plugins = (array) $_POST['checked'];
496	} else {
497		wp_redirect( admin_url('update-core.php') );
498		exit;
499	}
500
501	$url = 'update.php?action=update-selected&plugins=' . urlencode(implode(',', $plugins));
502	$url = wp_nonce_url($url, 'bulk-update-plugins');
503
504	$title = __('Update Plugins');
505
506	require_once(ABSPATH . 'wp-admin/admin-header.php');
507	echo '<div class="wrap">';
508	screen_icon('plugins');
509	echo '<h2>' . esc_html__('Update Plugins') . '</h2>';
510	echo "<iframe src='$url' style='width: 100%; height: 100%; min-height: 750px;' frameborder='0'></iframe>";
511	echo '</div>';
512	include(ABSPATH . 'wp-admin/admin-footer.php');
513
514} elseif ( 'do-theme-upgrade' == $action ) {
515
516	if ( ! current_user_can( 'update_themes' ) )
517		wp_die( __( 'You do not have sufficient permissions to update this site.' ) );
518
519	check_admin_referer('upgrade-core');
520
521	if ( isset( $_GET['themes'] ) ) {
522		$themes = explode( ',', $_GET['themes'] );
523	} elseif ( isset( $_POST['checked'] ) ) {
524		$themes = (array) $_POST['checked'];
525	} else {
526		wp_redirect( admin_url('update-core.php') );
527		exit;
528	}
529
530	$url = 'update.php?action=update-selected-themes&themes=' . urlencode(implode(',', $themes));
531	$url = wp_nonce_url($url, 'bulk-update-themes');
532
533	$title = __('Update Themes');
534
535	require_once(ABSPATH . 'wp-admin/admin-header.php');
536	echo '<div class="wrap">';
537	screen_icon('themes');
538	echo '<h2>' . esc_html__('Update Themes') . '</h2>';
539	echo "<iframe src='$url' style='width: 100%; height: 100%; min-height: 750px;' frameborder='0'></iframe>";
540	echo '</div>';
541	include(ABSPATH . 'wp-admin/admin-footer.php');
542
543} else {
544	do_action('update-core-custom_' . $action);
545}