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/wp-admin/update-core.php

https://bitbucket.org/mihteh/mihteh.com-wp
PHP | 541 lines | 445 code | 69 blank | 27 comment | 102 complexity | 9acc3d622977c1fee144592a19c3a08f 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( self_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 . '&section=changelog&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 ( $themes as $stylesheet => $theme ) {
315		echo "
316	<tr class='active'>
317		<th scope='row' class='check-column'><input type='checkbox' name='checked[]' value='" . esc_attr( $stylesheet ) . "' /></th>
318		<td class='plugin-title'><img src='" . esc_url( $theme->get_screenshot() ) . "' width='64' height='64' style='float:left; padding: 0 5px 5px' /><strong>" . $theme->display('Name') . '</strong> ' . sprintf( __( 'You have version %1$s installed. Update to %2$s.' ), $theme->display('Version'), $theme->update['new_version'] ) . "</td>
319	</tr>";
320	}
321?>
322	</tbody>
323</table>
324<p><input id="upgrade-themes-2" class="button" type="submit" value="<?php esc_attr_e('Update Themes'); ?>" name="upgrade" /></p>
325</form>
326<?php
327}
328
329/**
330 * Upgrade WordPress core display.
331 *
332 * @since 2.7
333 *
334 * @return null
335 */
336function do_core_upgrade( $reinstall = false ) {
337	global $wp_filesystem;
338
339	if ( $reinstall )
340		$url = 'update-core.php?action=do-core-reinstall';
341	else
342		$url = 'update-core.php?action=do-core-upgrade';
343	$url = wp_nonce_url($url, 'upgrade-core');
344	if ( false === ($credentials = request_filesystem_credentials($url, '', false, ABSPATH)) )
345		return;
346
347	$version = isset( $_POST['version'] )? $_POST['version'] : false;
348	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
349	$update = find_core_update( $version, $locale );
350	if ( !$update )
351		return;
352
353	if ( ! WP_Filesystem($credentials, ABSPATH) ) {
354		request_filesystem_credentials($url, '', true, ABSPATH); //Failed to connect, Error and request again
355		return;
356	}
357?>
358	<div class="wrap">
359	<?php screen_icon('tools'); ?>
360	<h2><?php _e('Update WordPress'); ?></h2>
361<?php
362	if ( $wp_filesystem->errors->get_error_code() ) {
363		foreach ( $wp_filesystem->errors->get_error_messages() as $message )
364			show_message($message);
365		echo '</div>';
366		return;
367	}
368
369	if ( $reinstall )
370		$update->response = 'reinstall';
371
372	$result = wp_update_core($update, 'show_message');
373
374	if ( is_wp_error($result) ) {
375		show_message($result);
376		if ('up_to_date' != $result->get_error_code() )
377			show_message( __('Installation Failed') );
378		echo '</div>';
379		return;
380	}
381
382	show_message( __('WordPress updated successfully') );
383	show_message( '<span class="hide-if-no-js">' . sprintf( __( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%s">here</a>.' ), $result, esc_url( self_admin_url( 'about.php?updated' ) ) ) . '</span>' );
384	show_message( '<span class="hide-if-js">' . sprintf( __( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ), $result, esc_url( self_admin_url( 'about.php?updated' ) ) ) . '</span>' );
385	?>
386	</div>
387	<script type="text/javascript">
388	window.location = '<?php echo self_admin_url( 'about.php?updated' ); ?>';
389	</script>
390	<?php
391}
392
393function do_dismiss_core_update() {
394	$version = isset( $_POST['version'] )? $_POST['version'] : false;
395	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
396	$update = find_core_update( $version, $locale );
397	if ( !$update )
398		return;
399	dismiss_core_update( $update );
400	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );
401	exit;
402}
403
404function do_undismiss_core_update() {
405	$version = isset( $_POST['version'] )? $_POST['version'] : false;
406	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
407	$update = find_core_update( $version, $locale );
408	if ( !$update )
409		return;
410	undismiss_core_update( $version, $locale );
411	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );
412	exit;
413}
414
415function no_update_actions($actions) {
416	return '';
417}
418
419$action = isset($_GET['action']) ? $_GET['action'] : 'upgrade-core';
420
421$upgrade_error = false;
422if ( ( 'do-theme-upgrade' == $action || ( 'do-plugin-upgrade' == $action && ! isset( $_GET['plugins'] ) ) )
423	&& ! isset( $_POST['checked'] ) ) {
424	$upgrade_error = $action == 'do-theme-upgrade' ? 'themes' : 'plugins';
425	$action = 'upgrade-core';
426}
427
428$title = __('WordPress Updates');
429$parent_file = 'tools.php';
430
431get_current_screen()->add_help_tab( array(
432'id'		=> 'overview',
433'title'		=> __('Overview'),
434'content'	=>
435	'<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>' .
436	'<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>'
437) );
438
439get_current_screen()->add_help_tab( array(
440'id'		=> 'how-to-update',
441'title'		=> __('How to Update'),
442'content'	=>
443	'<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>' .
444	'<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>'
445) );
446
447get_current_screen()->set_help_sidebar(
448	'<p><strong>' . __('For more information:') . '</strong></p>' .
449	'<p>' . __('<a href="http://codex.wordpress.org/Dashboard_Updates_Screen" target="_blank">Documentation on Updating WordPress</a>') . '</p>' .
450	'<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
451);
452
453if ( 'upgrade-core' == $action ) {
454
455	wp_version_check();
456	require_once(ABSPATH . 'wp-admin/admin-header.php');
457	core_upgrade_preamble();
458	include(ABSPATH . 'wp-admin/admin-footer.php');
459
460} elseif ( 'do-core-upgrade' == $action || 'do-core-reinstall' == $action ) {
461	check_admin_referer('upgrade-core');
462
463	// do the (un)dismiss actions before headers,
464	// so that they can redirect
465	if ( isset( $_POST['dismiss'] ) )
466		do_dismiss_core_update();
467	elseif ( isset( $_POST['undismiss'] ) )
468		do_undismiss_core_update();
469
470	require_once(ABSPATH . 'wp-admin/admin-header.php');
471	if ( 'do-core-reinstall' == $action )
472		$reinstall = true;
473	else
474		$reinstall = false;
475
476	if ( isset( $_POST['upgrade'] ) )
477		do_core_upgrade($reinstall);
478
479	include(ABSPATH . 'wp-admin/admin-footer.php');
480
481} elseif ( 'do-plugin-upgrade' == $action ) {
482
483	if ( ! current_user_can( 'update_plugins' ) )
484		wp_die( __( 'You do not have sufficient permissions to update this site.' ) );
485
486	check_admin_referer('upgrade-core');
487
488	if ( isset( $_GET['plugins'] ) ) {
489		$plugins = explode( ',', $_GET['plugins'] );
490	} elseif ( isset( $_POST['checked'] ) ) {
491		$plugins = (array) $_POST['checked'];
492	} else {
493		wp_redirect( admin_url('update-core.php') );
494		exit;
495	}
496
497	$url = 'update.php?action=update-selected&plugins=' . urlencode(implode(',', $plugins));
498	$url = wp_nonce_url($url, 'bulk-update-plugins');
499
500	$title = __('Update Plugins');
501
502	require_once(ABSPATH . 'wp-admin/admin-header.php');
503	echo '<div class="wrap">';
504	screen_icon('plugins');
505	echo '<h2>' . esc_html__('Update Plugins') . '</h2>';
506	echo "<iframe src='$url' style='width: 100%; height: 100%; min-height: 750px;' frameborder='0'></iframe>";
507	echo '</div>';
508	include(ABSPATH . 'wp-admin/admin-footer.php');
509
510} elseif ( 'do-theme-upgrade' == $action ) {
511
512	if ( ! current_user_can( 'update_themes' ) )
513		wp_die( __( 'You do not have sufficient permissions to update this site.' ) );
514
515	check_admin_referer('upgrade-core');
516
517	if ( isset( $_GET['themes'] ) ) {
518		$themes = explode( ',', $_GET['themes'] );
519	} elseif ( isset( $_POST['checked'] ) ) {
520		$themes = (array) $_POST['checked'];
521	} else {
522		wp_redirect( admin_url('update-core.php') );
523		exit;
524	}
525
526	$url = 'update.php?action=update-selected-themes&themes=' . urlencode(implode(',', $themes));
527	$url = wp_nonce_url($url, 'bulk-update-themes');
528
529	$title = __('Update Themes');
530
531	require_once(ABSPATH . 'wp-admin/admin-header.php');
532	echo '<div class="wrap">';
533	screen_icon('themes');
534	echo '<h2>' . esc_html__('Update Themes') . '</h2>';
535	echo "<iframe src='$url' style='width: 100%; height: 100%; min-height: 750px;' frameborder='0'></iframe>";
536	echo '</div>';
537	include(ABSPATH . 'wp-admin/admin-footer.php');
538
539} else {
540	do_action('update-core-custom_' . $action);
541}