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/wordpress-dev/wp-admin/update-core.php

https://github.com/scottbale/kirkwoodcoc
PHP | 779 lines | 590 code | 105 blank | 84 comment | 141 complexity | dc115398ae4261756edc127cc5877ac1 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( dirname( __FILE__ ) . '/admin.php' );
 11
 12wp_enqueue_style( 'plugin-install' );
 13wp_enqueue_script( 'plugin-install' );
 14wp_enqueue_script( 'updates' );
 15add_thickbox();
 16
 17if ( is_multisite() && ! is_network_admin() ) {
 18	wp_redirect( network_admin_url( 'update-core.php' ) );
 19	exit();
 20}
 21
 22if ( ! current_user_can( 'update_core' ) && ! current_user_can( 'update_themes' ) && ! current_user_can( 'update_plugins' ) && ! current_user_can( 'update_languages' ) )
 23	wp_die( __( 'Sorry, you are not allowed to update this site.' ) );
 24
 25/**
 26 *
 27 * @global string $wp_local_package
 28 * @global wpdb   $wpdb
 29 *
 30 * @staticvar bool $first_pass
 31 *
 32 * @param object $update
 33 */
 34function list_core_update( $update ) {
 35 	global $wp_local_package, $wpdb;
 36  	static $first_pass = true;
 37
 38	$wp_version = get_bloginfo( 'version' );
 39
 40 	if ( 'en_US' == $update->locale && 'en_US' == get_locale() )
 41 		$version_string = $update->current;
 42 	// If the only available update is a partial builds, it doesn't need a language-specific version string.
 43 	elseif ( 'en_US' == $update->locale && $update->packages->partial && $wp_version == $update->partial_version && ( $updates = get_core_updates() ) && 1 == count( $updates ) )
 44 		$version_string = $update->current;
 45 	else
 46 		$version_string = sprintf( "%s&ndash;<strong>%s</strong>", $update->current, $update->locale );
 47
 48	$current = false;
 49	if ( !isset($update->response) || 'latest' == $update->response )
 50		$current = true;
 51	$submit = __('Update Now');
 52	$form_action = 'update-core.php?action=do-core-upgrade';
 53	$php_version    = phpversion();
 54	$mysql_version  = $wpdb->db_version();
 55	$show_buttons = true;
 56	if ( 'development' == $update->response ) {
 57		$message = __('You are using a development version of WordPress. You can update to the latest nightly build automatically:');
 58	} else {
 59		if ( $current ) {
 60			$message = sprintf( __( 'If you need to re-install version %s, you can do so here:' ), $version_string );
 61			$submit = __('Re-install Now');
 62			$form_action = 'update-core.php?action=do-core-reinstall';
 63		} else {
 64			$php_compat     = version_compare( $php_version, $update->php_version, '>=' );
 65			if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) )
 66				$mysql_compat = true;
 67			else
 68				$mysql_compat = version_compare( $mysql_version, $update->mysql_version, '>=' );
 69
 70			if ( !$mysql_compat && !$php_compat )
 71				/* translators: 1: WordPress version number, 2: Minimum required PHP version number, 3: Minimum required MySQL version number, 4: Current PHP version number, 5: Current MySQL version number */
 72				$message = sprintf( __('You cannot update because <a href="https://codex.wordpress.org/Version_%1$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, $mysql_version );
 73			elseif ( !$php_compat )
 74				/* translators: 1: WordPress version number, 2: Minimum required PHP version number, 3: Current PHP version number */
 75				$message = sprintf( __('You cannot update because <a href="https://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> requires PHP version %2$s or higher. You are running version %3$s.'), $update->current, $update->php_version, $php_version );
 76			elseif ( !$mysql_compat )
 77				/* translators: 1: WordPress version number, 2: Minimum required MySQL version number, 3: Current MySQL version number */
 78				$message = sprintf( __('You cannot update because <a href="https://codex.wordpress.org/Version_%1$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 );
 79			else
 80				/* translators: 1: WordPress version number, 2: WordPress version number including locale if necessary */
 81				$message = 	sprintf(__('You can update to <a href="https://codex.wordpress.org/Version_%1$s">WordPress %2$s</a> automatically:'), $update->current, $version_string);
 82			if ( !$mysql_compat || !$php_compat )
 83				$show_buttons = false;
 84		}
 85	}
 86
 87	echo '<p>';
 88	echo $message;
 89	echo '</p>';
 90	echo '<form method="post" action="' . $form_action . '" name="upgrade" class="upgrade">';
 91	wp_nonce_field('upgrade-core');
 92	echo '<p>';
 93	echo '<input name="version" value="'. esc_attr($update->current) .'" type="hidden"/>';
 94	echo '<input name="locale" value="'. esc_attr($update->locale) .'" type="hidden"/>';
 95	if ( $show_buttons ) {
 96		if ( $first_pass ) {
 97			submit_button( $submit, $current ? '' : 'primary regular', 'upgrade', false );
 98			$first_pass = false;
 99		} else {
100			submit_button( $submit, '', 'upgrade', false );
101		}
102	}
103	if ( 'en_US' != $update->locale )
104		if ( !isset( $update->dismissed ) || !$update->dismissed )
105			submit_button( __( 'Hide this update' ), '', 'dismiss', false );
106		else
107			submit_button( __( 'Bring back this update' ), '', 'undismiss', false );
108	echo '</p>';
109	if ( 'en_US' != $update->locale && ( !isset($wp_local_package) || $wp_local_package != $update->locale ) )
110	    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>';
111	// Partial builds don't need language-specific warnings.
112	elseif ( 'en_US' == $update->locale && get_locale() != 'en_US' && ( ! $update->packages->partial && $wp_version == $update->partial_version ) ) {
113	    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>';
114	}
115	echo '</form>';
116
117}
118
119/**
120 * @since 2.7.0
121 */
122function dismissed_updates() {
123	$dismissed = get_core_updates( array( 'dismissed' => true, 'available' => false ) );
124	if ( $dismissed ) {
125
126		$show_text = esc_js(__('Show hidden updates'));
127		$hide_text = esc_js(__('Hide hidden updates'));
128	?>
129	<script type="text/javascript">
130
131		jQuery(function($) {
132			$('dismissed-updates').show();
133			$('#show-dismissed').toggle(function(){$(this).text('<?php echo $hide_text; ?>');}, function() {$(this).text('<?php echo $show_text; ?>')});
134			$('#show-dismissed').click(function() { $('#dismissed-updates').toggle('slow');});
135		});
136	</script>
137	<?php
138		echo '<p class="hide-if-no-js"><a id="show-dismissed" href="#">'.__('Show hidden updates').'</a></p>';
139		echo '<ul id="dismissed-updates" class="core-updates dismissed">';
140		foreach ( (array) $dismissed as $update) {
141			echo '<li>';
142			list_core_update( $update );
143			echo '</li>';
144		}
145		echo '</ul>';
146	}
147}
148
149/**
150 * Display upgrade WordPress for downloading latest or upgrading automatically form.
151 *
152 * @since 2.7.0
153 *
154 * @global string $required_php_version
155 * @global string $required_mysql_version
156 */
157function core_upgrade_preamble() {
158	global $required_php_version, $required_mysql_version;
159
160	$wp_version = get_bloginfo( 'version' );
161	$updates = get_core_updates();
162
163	if ( !isset($updates[0]->response) || 'latest' == $updates[0]->response ) {
164		echo '<h2>';
165		_e('You have the latest version of WordPress.');
166
167		if ( wp_http_supports( array( 'ssl' ) ) ) {
168			require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
169			$upgrader = new WP_Automatic_Updater;
170			$future_minor_update = (object) array(
171				'current'       => $wp_version . '.1.next.minor',
172				'version'       => $wp_version . '.1.next.minor',
173				'php_version'   => $required_php_version,
174				'mysql_version' => $required_mysql_version,
175			);
176			$should_auto_update = $upgrader->should_update( 'core', $future_minor_update, ABSPATH );
177			if ( $should_auto_update )
178				echo ' ' . __( 'Future security updates will be applied automatically.' );
179		}
180		echo '</h2>';
181	} else {
182		echo '<div class="notice notice-warning"><p>';
183		_e('<strong>Important:</strong> before updating, please <a href="https://codex.wordpress.org/WordPress_Backups">back up your database and files</a>. For help with updates, visit the <a href="https://codex.wordpress.org/Updating_WordPress">Updating WordPress</a> Codex page.');
184		echo '</p></div>';
185
186		echo '<h2 class="response">';
187		_e( 'An updated version of WordPress is available.' );
188		echo '</h2>';
189	}
190
191	if ( isset( $updates[0] ) && $updates[0]->response == 'development' ) {
192		require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
193		$upgrader = new WP_Automatic_Updater;
194		if ( wp_http_supports( 'ssl' ) && $upgrader->should_update( 'core', $updates[0], ABSPATH ) ) {
195			echo '<div class="updated inline"><p>';
196			echo '<strong>' . __( 'BETA TESTERS:' ) . '</strong> ' . __( 'This site is set up to install updates of future beta versions automatically.' );
197			echo '</p></div>';
198		}
199	}
200
201	echo '<ul class="core-updates">';
202	foreach ( (array) $updates as $update ) {
203		echo '<li>';
204		list_core_update( $update );
205		echo '</li>';
206	}
207	echo '</ul>';
208	// Don't show the maintenance mode notice when we are only showing a single re-install option.
209	if ( $updates && ( count( $updates ) > 1 || $updates[0]->response != 'latest' ) ) {
210		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>';
211	} elseif ( ! $updates ) {
212		list( $normalized_version ) = explode( '-', $wp_version );
213		echo '<p>' . sprintf( __( '<a href="%s">Learn more about WordPress %s</a>.' ), esc_url( self_admin_url( 'about.php' ) ), $normalized_version ) . '</p>';
214	}
215	dismissed_updates();
216}
217
218function list_plugin_updates() {
219	$wp_version = get_bloginfo( 'version' );
220	$cur_wp_version = preg_replace( '/-.*$/', '', $wp_version );
221
222	require_once(ABSPATH . 'wp-admin/includes/plugin-install.php');
223	$plugins = get_plugin_updates();
224	if ( empty( $plugins ) ) {
225		echo '<h2>' . __( 'Plugins' ) . '</h2>';
226		echo '<p>' . __( 'Your plugins are all up to date.' ) . '</p>';
227		return;
228	}
229	$form_action = 'update-core.php?action=do-plugin-upgrade';
230
231	$core_updates = get_core_updates();
232	if ( !isset($core_updates[0]->response) || 'latest' == $core_updates[0]->response || 'development' == $core_updates[0]->response || version_compare( $core_updates[0]->current, $cur_wp_version, '=') )
233		$core_update_version = false;
234	else
235		$core_update_version = $core_updates[0]->current;
236	?>
237<h2><?php _e( 'Plugins' ); ?></h2>
238<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>
239<form method="post" action="<?php echo esc_url( $form_action ); ?>" name="upgrade-plugins" class="upgrade">
240<?php wp_nonce_field('upgrade-core'); ?>
241<p><input id="upgrade-plugins" class="button" type="submit" value="<?php esc_attr_e('Update Plugins'); ?>" name="upgrade" /></p>
242<table class="widefat updates-table" id="update-plugins-table">
243	<thead>
244	<tr>
245		<td class="manage-column check-column"><input type="checkbox" id="plugins-select-all" /></td>
246		<td class="manage-column"><label for="plugins-select-all"><?php _e( 'Select All' ); ?></label></td>
247	</tr>
248	</thead>
249
250	<tbody class="plugins">
251<?php
252	foreach ( (array) $plugins as $plugin_file => $plugin_data ) {
253		$plugin_data = (object) _get_plugin_data_markup_translate( $plugin_file, (array) $plugin_data, false, true );
254
255		$icon = '<span class="dashicons dashicons-admin-plugins"></span>';
256		$preferred_icons = array( 'svg', '1x', '2x', 'default' );
257		foreach ( $preferred_icons as $preferred_icon ) {
258			if ( ! empty( $plugin_data->update->icons[ $preferred_icon ] ) ) {
259				$icon = '<img src="' . esc_url( $plugin_data->update->icons[ $preferred_icon ] ) . '" alt="" />';
260				break;
261			}			
262		}
263
264		// Get plugin compat for running version of WordPress.
265		if ( isset($plugin_data->update->tested) && version_compare($plugin_data->update->tested, $cur_wp_version, '>=') ) {
266			$compat = '<br />' . sprintf(__('Compatibility with WordPress %1$s: 100%% (according to its author)'), $cur_wp_version);
267		} elseif ( isset($plugin_data->update->compatibility->{$cur_wp_version}) ) {
268			$compat = $plugin_data->update->compatibility->{$cur_wp_version};
269			$compat = '<br />' . sprintf(__('Compatibility with WordPress %1$s: %2$d%% (%3$d "works" votes out of %4$d total)'), $cur_wp_version, $compat->percent, $compat->votes, $compat->total_votes);
270		} else {
271			$compat = '<br />' . sprintf(__('Compatibility with WordPress %1$s: Unknown'), $cur_wp_version);
272		}
273		// Get plugin compat for updated version of WordPress.
274		if ( $core_update_version ) {
275			if ( isset( $plugin_data->update->tested ) && version_compare( $plugin_data->update->tested, $core_update_version, '>=' ) ) {
276				$compat .= '<br />' . sprintf( __( 'Compatibility with WordPress %1$s: 100%% (according to its author)' ), $core_update_version );
277			} elseif ( isset( $plugin_data->update->compatibility->{$core_update_version} ) ) {
278				$update_compat = $plugin_data->update->compatibility->{$core_update_version};
279				$compat .= '<br />' . sprintf(__('Compatibility with WordPress %1$s: %2$d%% (%3$d "works" votes out of %4$d total)'), $core_update_version, $update_compat->percent, $update_compat->votes, $update_compat->total_votes);
280			} else {
281				$compat .= '<br />' . sprintf(__('Compatibility with WordPress %1$s: Unknown'), $core_update_version);
282			}
283		}
284		// Get the upgrade notice for the new plugin version.
285		if ( isset($plugin_data->update->upgrade_notice) ) {
286			$upgrade_notice = '<br />' . strip_tags($plugin_data->update->upgrade_notice);
287		} else {
288			$upgrade_notice = '';
289		}
290
291		$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');
292		$details = sprintf(
293			'<a href="%1$s" class="thickbox open-plugin-details-modal" aria-label="%2$s">%3$s</a>',
294			esc_url( $details_url ),
295			/* translators: 1: plugin name, 2: version number */
296			esc_attr( sprintf( __( 'View %1$s version %2$s details' ), $plugin_data->Name, $plugin_data->update->new_version ) ),
297			/* translators: %s: plugin version */
298			sprintf( __( 'View version %s details.' ), $plugin_data->update->new_version )
299		);
300
301		$checkbox_id = "checkbox_" . md5( $plugin_data->Name );
302		?>
303		<tr>
304			<td class="check-column">
305				<input type="checkbox" name="checked[]" id="<?php echo $checkbox_id; ?>" value="<?php echo esc_attr( $plugin_file ); ?>" />
306				<label for="<?php echo $checkbox_id; ?>" class="screen-reader-text"><?php
307					/* translators: %s: plugin name */
308					printf( __( 'Select %s' ),
309						$plugin_data->Name
310					);
311				?></label>
312			</td>
313			<td class="plugin-title"><p>
314				<?php echo $icon; ?>
315				<strong><?php echo $plugin_data->Name; ?></strong>
316				<?php
317					/* translators: 1: plugin version, 2: new version */
318					printf( __( 'You have version %1$s installed. Update to %2$s.' ),
319						$plugin_data->Version,
320						$plugin_data->update->new_version
321					);
322					echo ' ' . $details . $compat . $upgrade_notice;
323				?>
324			</p></td>
325		</tr>
326		<?php
327	}
328?>
329	</tbody>
330
331	<tfoot>
332	<tr>
333		<td class="manage-column check-column"><input type="checkbox" id="plugins-select-all-2" /></td>
334		<td class="manage-column"><label for="plugins-select-all-2"><?php _e( 'Select All' ); ?></label></td>
335	</tr>
336	</tfoot>
337</table>
338<p><input id="upgrade-plugins-2" class="button" type="submit" value="<?php esc_attr_e('Update Plugins'); ?>" name="upgrade" /></p>
339</form>
340<?php
341}
342
343/**
344 * @since 2.9.0
345 */
346function list_theme_updates() {
347	$themes = get_theme_updates();
348	if ( empty( $themes ) ) {
349		echo '<h2>' . __( 'Themes' ) . '</h2>';
350		echo '<p>' . __( 'Your themes are all up to date.' ) . '</p>';
351		return;
352	}
353
354	$form_action = 'update-core.php?action=do-theme-upgrade';
355?>
356<h2><?php _e( 'Themes' ); ?></h2>
357<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>
358<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.' ), __( 'https://codex.wordpress.org/Child_Themes' ) ); ?></p>
359<form method="post" action="<?php echo esc_url( $form_action ); ?>" name="upgrade-themes" class="upgrade">
360<?php wp_nonce_field('upgrade-core'); ?>
361<p><input id="upgrade-themes" class="button" type="submit" value="<?php esc_attr_e('Update Themes'); ?>" name="upgrade" /></p>
362<table class="widefat updates-table" id="update-themes-table">
363	<thead>
364	<tr>
365		<td class="manage-column check-column"><input type="checkbox" id="themes-select-all" /></td>
366		<td class="manage-column"><label for="themes-select-all"><?php _e( 'Select All' ); ?></label></td>
367	</tr>
368	</thead>
369
370	<tbody class="plugins">
371<?php
372	foreach ( $themes as $stylesheet => $theme ) {
373		$checkbox_id = 'checkbox_' . md5( $theme->get( 'Name' ) );
374		?>
375		<tr>
376			<td class="check-column">
377				<input type="checkbox" name="checked[]" id="<?php echo $checkbox_id; ?>" value="<?php echo esc_attr( $stylesheet ); ?>" />
378				<label for="<?php echo $checkbox_id; ?>" class="screen-reader-text"><?php
379					/* translators: %s: theme name */
380					printf( __( 'Select %s' ),
381						$theme->display( 'Name' )
382					);
383				?></label>
384			</td>
385			<td class="plugin-title"><p>
386				<img src="<?php echo esc_url( $theme->get_screenshot() ); ?>" width="85" height="64" class="updates-table-screenshot" alt="" />
387				<strong><?php echo $theme->display( 'Name' ); ?></strong>
388				<?php
389					/* translators: 1: theme version, 2: new version */
390					printf( __( 'You have version %1$s installed. Update to %2$s.' ),
391						$theme->display( 'Version' ),
392						$theme->update['new_version']
393					);
394				?>
395			</p></td>
396		</tr>
397		<?php
398	}
399?>
400	</tbody>
401
402	<tfoot>
403	<tr>
404		<td class="manage-column check-column"><input type="checkbox" id="themes-select-all-2" /></td>
405		<td class="manage-column"><label for="themes-select-all-2"><?php _e( 'Select All' ); ?></label></td>
406	</tr>
407	</tfoot>
408</table>
409<p><input id="upgrade-themes-2" class="button" type="submit" value="<?php esc_attr_e('Update Themes'); ?>" name="upgrade" /></p>
410</form>
411<?php
412}
413
414/**
415 * @since 3.7.0
416 */
417function list_translation_updates() {
418	$updates = wp_get_translation_updates();
419	if ( ! $updates ) {
420		if ( 'en_US' != get_locale() ) {
421			echo '<h2>' . __( 'Translations' ) . '</h2>';
422			echo '<p>' . __( 'Your translations are all up to date.' ) . '</p>';
423		}
424		return;
425	}
426
427	$form_action = 'update-core.php?action=do-translation-upgrade';
428	?>
429	<h2><?php _e( 'Translations' ); ?></h2>
430	<form method="post" action="<?php echo esc_url( $form_action ); ?>" name="upgrade-translations" class="upgrade">
431		<p><?php _e( 'New translations are available.' ); ?></p>
432		<?php wp_nonce_field( 'upgrade-translations' ); ?>
433		<p><input class="button" type="submit" value="<?php esc_attr_e( 'Update Translations' ); ?>" name="upgrade" /></p>
434	</form>
435	<?php
436}
437
438/**
439 * Upgrade WordPress core display.
440 *
441 * @since 2.7.0
442 *
443 * @global WP_Filesystem_Base $wp_filesystem Subclass
444 *
445 * @param bool $reinstall
446 */
447function do_core_upgrade( $reinstall = false ) {
448	global $wp_filesystem;
449
450	include_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );
451
452	if ( $reinstall )
453		$url = 'update-core.php?action=do-core-reinstall';
454	else
455		$url = 'update-core.php?action=do-core-upgrade';
456	$url = wp_nonce_url($url, 'upgrade-core');
457
458	$version = isset( $_POST['version'] )? $_POST['version'] : false;
459	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
460	$update = find_core_update( $version, $locale );
461	if ( !$update )
462		return;
463
464	// Allow relaxed file ownership writes for User-initiated upgrades when the API specifies
465	// that it's safe to do so. This only happens when there are no new files to create.
466	$allow_relaxed_file_ownership = ! $reinstall && isset( $update->new_files ) && ! $update->new_files;
467
468?>
469	<div class="wrap">
470	<h1><?php _e( 'Update WordPress' ); ?></h1>
471<?php
472
473	if ( false === ( $credentials = request_filesystem_credentials( $url, '', false, ABSPATH, array( 'version', 'locale' ), $allow_relaxed_file_ownership ) ) ) {
474		echo '</div>';
475		return;
476	}
477
478	if ( ! WP_Filesystem( $credentials, ABSPATH, $allow_relaxed_file_ownership ) ) {
479		// Failed to connect, Error and request again
480		request_filesystem_credentials( $url, '', true, ABSPATH, array( 'version', 'locale' ), $allow_relaxed_file_ownership );
481		echo '</div>';
482		return;
483	}
484
485	if ( $wp_filesystem->errors->get_error_code() ) {
486		foreach ( $wp_filesystem->errors->get_error_messages() as $message )
487			show_message($message);
488		echo '</div>';
489		return;
490	}
491
492	if ( $reinstall )
493		$update->response = 'reinstall';
494
495	add_filter( 'update_feedback', 'show_message' );
496
497	$upgrader = new Core_Upgrader();
498	$result = $upgrader->upgrade( $update, array(
499		'allow_relaxed_file_ownership' => $allow_relaxed_file_ownership
500	) );
501
502	if ( is_wp_error($result) ) {
503		show_message($result);
504		if ( 'up_to_date' != $result->get_error_code() && 'locked' != $result->get_error_code() )
505			show_message( __('Installation Failed') );
506		echo '</div>';
507		return;
508	}
509
510	show_message( __('WordPress updated successfully') );
511	show_message( '<span class="hide-if-no-js">' . sprintf( __( 'Welcome to WordPress %1$s. You will be redirected to the About WordPress screen. If not, click <a href="%2$s">here</a>.' ), $result, esc_url( self_admin_url( 'about.php?updated' ) ) ) . '</span>' );
512	show_message( '<span class="hide-if-js">' . sprintf( __( 'Welcome to WordPress %1$s. <a href="%2$s">Learn more</a>.' ), $result, esc_url( self_admin_url( 'about.php?updated' ) ) ) . '</span>' );
513	?>
514	</div>
515	<script type="text/javascript">
516	window.location = '<?php echo self_admin_url( 'about.php?updated' ); ?>';
517	</script>
518	<?php
519}
520
521/**
522 * @since 2.7.0
523 */
524function do_dismiss_core_update() {
525	$version = isset( $_POST['version'] )? $_POST['version'] : false;
526	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
527	$update = find_core_update( $version, $locale );
528	if ( !$update )
529		return;
530	dismiss_core_update( $update );
531	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );
532	exit;
533}
534
535/**
536 * @since 2.7.0
537 */
538function do_undismiss_core_update() {
539	$version = isset( $_POST['version'] )? $_POST['version'] : false;
540	$locale = isset( $_POST['locale'] )? $_POST['locale'] : 'en_US';
541	$update = find_core_update( $version, $locale );
542	if ( !$update )
543		return;
544	undismiss_core_update( $version, $locale );
545	wp_redirect( wp_nonce_url('update-core.php?action=upgrade-core', 'upgrade-core') );
546	exit;
547}
548
549$action = isset($_GET['action']) ? $_GET['action'] : 'upgrade-core';
550
551$upgrade_error = false;
552if ( ( 'do-theme-upgrade' == $action || ( 'do-plugin-upgrade' == $action && ! isset( $_GET['plugins'] ) ) )
553	&& ! isset( $_POST['checked'] ) ) {
554	$upgrade_error = $action == 'do-theme-upgrade' ? 'themes' : 'plugins';
555	$action = 'upgrade-core';
556}
557
558$title = __('WordPress Updates');
559$parent_file = 'index.php';
560
561$updates_overview  = '<p>' . __( 'On this screen, you can update to the latest version of WordPress, as well as update your themes, plugins, and translations from the WordPress.org repositories.' ) . '</p>';
562$updates_overview .= '<p>' . __( 'If an update is available, you&#8127;ll see a notification appear in the Toolbar and navigation menu.' ) . ' ' . __( 'Keeping your site updated is important for security. It also makes the internet a safer place for you and your readers.' ) . '</p>';
563
564get_current_screen()->add_help_tab( array(
565	'id'      => 'overview',
566	'title'   => __( 'Overview' ),
567	'content' => $updates_overview
568) );
569
570$updates_howto  = '<p>' . __( '<strong>WordPress</strong> &mdash; Updating your WordPress installation is a simple one-click procedure: just <strong>click on the &#8220;Update Now&#8221; button</strong> when you are notified that a new version is available.' ) . ' ' . __( 'In most cases, WordPress will automatically apply maintenance and security updates in the background for you.' ) . '</p>';
571$updates_howto .= '<p>' . __( '<strong>Themes and Plugins</strong> &mdash; To update individual themes or plugins from this screen, use the checkboxes to make your selection, then <strong>click on the appropriate &#8220;Update&#8221; button</strong>. To update all of your themes or plugins at once, you can check the box at the top of the section to select all before clicking the update button.' ) . '</p>';
572
573if ( 'en_US' != get_locale() ) {
574	$updates_howto .= '<p>' . __( '<strong>Translations</strong> &mdash; The files translating WordPress into your language are updated for you whenever any other updates occur. But if these files are out of date, you can <strong>click the &#8220;Update Translations&#8221;</strong> button.' ) . '</p>';
575}
576
577get_current_screen()->add_help_tab( array(
578	'id'      => 'how-to-update',
579	'title'   => __( 'How to Update' ),
580	'content' => $updates_howto
581) );
582
583get_current_screen()->set_help_sidebar(
584	'<p><strong>' . __('For more information:') . '</strong></p>' .
585	'<p>' . __( '<a href="https://codex.wordpress.org/Dashboard_Updates_Screen">Documentation on Updating WordPress</a>' ) . '</p>' .
586	'<p>' . __( '<a href="https://wordpress.org/support/">Support Forums</a>' ) . '</p>'
587);
588
589if ( 'upgrade-core' == $action ) {
590	// Force a update check when requested
591	$force_check = ! empty( $_GET['force-check'] );
592	wp_version_check( array(), $force_check );
593
594	require_once(ABSPATH . 'wp-admin/admin-header.php');
595	?>
596	<div class="wrap">
597	<h1><?php _e( 'WordPress Updates' ); ?></h1>
598	<?php
599	if ( $upgrade_error ) {
600		echo '<div class="error"><p>';
601		if ( $upgrade_error == 'themes' )
602			_e('Please select one or more themes to update.');
603		else
604			_e('Please select one or more plugins to update.');
605		echo '</p></div>';
606	}
607
608	$last_update_check = false;
609	$current = get_site_transient( 'update_core' );
610
611	if ( $current && isset ( $current->last_checked ) )	{
612		$last_update_check = $current->last_checked + get_option( 'gmt_offset' ) * HOUR_IN_SECONDS;
613	}
614
615	echo '<p>';
616	/* translators: %1 date, %2 time. */
617	printf( __( 'Last checked on %1$s at %2$s.' ), date_i18n( __( 'F j, Y' ), $last_update_check ), date_i18n( __( 'g:i a' ), $last_update_check ) );
618	echo ' &nbsp; <a class="button" href="' . esc_url( self_admin_url('update-core.php?force-check=1') ) . '">' . __( 'Check Again' ) . '</a>';
619	echo '</p>';
620
621	if ( current_user_can( 'update_core' ) ) {
622		core_upgrade_preamble();
623	}
624	if ( current_user_can( 'update_plugins' ) ) {
625		list_plugin_updates();
626	}
627	if ( current_user_can( 'update_themes' ) ) {
628		list_theme_updates();
629	}
630	if ( current_user_can( 'update_languages' ) ) {
631		list_translation_updates();
632	}
633
634	/**
635	 * Fires after the core, plugin, and theme update tables.
636	 *
637	 * @since 2.9.0
638	 */
639	do_action( 'core_upgrade_preamble' );
640	echo '</div>';
641
642	wp_localize_script( 'updates', '_wpUpdatesItemCounts', array(
643		'totals'  => wp_get_update_data(),
644	) );
645
646	include(ABSPATH . 'wp-admin/admin-footer.php');
647
648} elseif ( 'do-core-upgrade' == $action || 'do-core-reinstall' == $action ) {
649
650	if ( ! current_user_can( 'update_core' ) )
651		wp_die( __( 'Sorry, you are not allowed to update this site.' ) );
652
653	check_admin_referer('upgrade-core');
654
655	// Do the (un)dismiss actions before headers, so that they can redirect.
656	if ( isset( $_POST['dismiss'] ) )
657		do_dismiss_core_update();
658	elseif ( isset( $_POST['undismiss'] ) )
659		do_undismiss_core_update();
660
661	require_once(ABSPATH . 'wp-admin/admin-header.php');
662	if ( 'do-core-reinstall' == $action )
663		$reinstall = true;
664	else
665		$reinstall = false;
666
667	if ( isset( $_POST['upgrade'] ) )
668		do_core_upgrade($reinstall);
669
670	wp_localize_script( 'updates', '_wpUpdatesItemCounts', array(
671		'totals'  => wp_get_update_data(),
672	) );
673
674	include(ABSPATH . 'wp-admin/admin-footer.php');
675
676} elseif ( 'do-plugin-upgrade' == $action ) {
677
678	if ( ! current_user_can( 'update_plugins' ) )
679		wp_die( __( 'Sorry, you are not allowed to update this site.' ) );
680
681	check_admin_referer('upgrade-core');
682
683	if ( isset( $_GET['plugins'] ) ) {
684		$plugins = explode( ',', $_GET['plugins'] );
685	} elseif ( isset( $_POST['checked'] ) ) {
686		$plugins = (array) $_POST['checked'];
687	} else {
688		wp_redirect( admin_url('update-core.php') );
689		exit;
690	}
691
692	$url = 'update.php?action=update-selected&plugins=' . urlencode(implode(',', $plugins));
693	$url = wp_nonce_url($url, 'bulk-update-plugins');
694
695	$title = __('Update Plugins');
696
697	require_once(ABSPATH . 'wp-admin/admin-header.php');
698	echo '<div class="wrap">';
699	echo '<h1>' . __( 'Update Plugins' ) . '</h1>';
700	echo '<iframe src="', $url, '" style="width: 100%; height: 100%; min-height: 750px;" frameborder="0" title="' . esc_attr__( 'Update progress' ) . '"></iframe>';
701	echo '</div>';
702
703	wp_localize_script( 'updates', '_wpUpdatesItemCounts', array(
704		'totals'  => wp_get_update_data(),
705	) );
706
707	include(ABSPATH . 'wp-admin/admin-footer.php');
708
709} elseif ( 'do-theme-upgrade' == $action ) {
710
711	if ( ! current_user_can( 'update_themes' ) )
712		wp_die( __( 'Sorry, you are not allowed to update this site.' ) );
713
714	check_admin_referer('upgrade-core');
715
716	if ( isset( $_GET['themes'] ) ) {
717		$themes = explode( ',', $_GET['themes'] );
718	} elseif ( isset( $_POST['checked'] ) ) {
719		$themes = (array) $_POST['checked'];
720	} else {
721		wp_redirect( admin_url('update-core.php') );
722		exit;
723	}
724
725	$url = 'update.php?action=update-selected-themes&themes=' . urlencode(implode(',', $themes));
726	$url = wp_nonce_url($url, 'bulk-update-themes');
727
728	$title = __('Update Themes');
729
730	require_once(ABSPATH . 'wp-admin/admin-header.php');
731	?>
732	<div class="wrap">
733		<h1><?php _e( 'Update Themes' ); ?></h1>
734		<iframe src="<?php echo $url ?>" style="width: 100%; height: 100%; min-height: 750px;" frameborder="0" title="<?php esc_attr_e( 'Update progress' ); ?>"></iframe>
735	</div>
736	<?php
737
738	wp_localize_script( 'updates', '_wpUpdatesItemCounts', array(
739		'totals'  => wp_get_update_data(),
740	) );
741
742	include(ABSPATH . 'wp-admin/admin-footer.php');
743
744} elseif ( 'do-translation-upgrade' == $action ) {
745
746	if ( ! current_user_can( 'update_languages' ) )
747		wp_die( __( 'Sorry, you are not allowed to update this site.' ) );
748
749	check_admin_referer( 'upgrade-translations' );
750
751	require_once( ABSPATH . 'wp-admin/admin-header.php' );
752	include_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );
753
754	$url = 'update-core.php?action=do-translation-upgrade';
755	$nonce = 'upgrade-translations';
756	$title = __( 'Update Translations' );
757	$context = WP_LANG_DIR;
758
759	$upgrader = new Language_Pack_Upgrader( new Language_Pack_Upgrader_Skin( compact( 'url', 'nonce', 'title', 'context' ) ) );
760	$result = $upgrader->bulk_upgrade();
761
762	wp_localize_script( 'updates', '_wpUpdatesItemCounts', array(
763		'totals'  => wp_get_update_data(),
764	) );
765
766	require_once( ABSPATH . 'wp-admin/admin-footer.php' );
767
768} else {
769	/**
770	 * Fires for each custom update action on the WordPress Updates screen.
771	 *
772	 * The dynamic portion of the hook name, `$action`, refers to the
773	 * passed update action. The hook fires in lieu of all available
774	 * default update actions.
775	 *
776	 * @since 3.2.0
777	 */
778	do_action( "update-core-custom_{$action}" );
779}