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Ticket #10541: class-wp-upgrader.php

File class-wp-upgrader.php, 37.6 KB (added by dd32, 3 years ago)

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1	<?php
2	/**
3	* A File upgrader class for WordPress.
4	*
5	* This set of classes are designed to be used to upgrade/install a local set of files on the filesystem via the Filesystem Abstraction classes.
6	*
7	* @link http://trac.wordpress.org/ticket/7875 consolidate plugin/theme/core upgrade/install functions
8	*
9	* @package WordPress
10	* @subpackage Upgrader
11	* @since 2.8.0
12	*/
13
14	/**
15	* WordPress Upgrader class for Upgrading/Installing a local set of files via the Filesystem Abstraction classes from a Zip file.
16	*
17	* @TODO More Detailed docs, for methods as well.
18	*
19	* @package WordPress
20	* @subpackage Upgrader
21	* @since 2.8.0
22	*/
23	class WP_Upgrader {
24	var $strings = array();
25	var $skin = null;
26	var $result = array();
27
28	function WP_Upgrader($skin = null) {
29	return $this->__construct($skin);
30	}
31	function __construct($skin = null) {
32	if ( null == $skin )
33	$this->skin = new WP_Upgrader_Skin();
34	else
35	$this->skin = $skin;
36	}
37
38	function init() {
39	$this->skin->set_upgrader($this);
40	$this->generic_strings();
41	}
42
43	function generic_strings() {
44	$this->strings['bad_request'] = __('Invalid Data provided.');
45	$this->strings['fs_unavailable'] = __('Could not access filesystem.');
46	$this->strings['fs_error'] = __('Filesystem error');
47	$this->strings['fs_no_root_dir'] = __('Unable to locate WordPress Root directory.');
48	$this->strings['fs_no_content_dir'] = __('Unable to locate WordPress Content directory (wp-content).');
49	$this->strings['fs_no_plugins_dir'] = __('Unable to locate WordPress Plugin directory.');
50	$this->strings['fs_no_themes_dir'] = __('Unable to locate WordPress Theme directory.');
51	$this->strings['fs_no_folder'] = __('Unable to locate needed folder (%s).');
52
53	$this->strings['download_failed'] = __('Download failed.');
54	$this->strings['installing_package'] = __('Installing the latest version.');
55	$this->strings['folder_exists'] = __('Destination folder already exists.');
56	$this->strings['mkdir_failed'] = __('Could not create directory.');
57	$this->strings['bad_package'] = __('Incompatible Archive');
58
59	$this->strings['maintenance_start'] = __('Enabling Maintenance mode.');
60	$this->strings['maintenance_end'] = __('Disabling Maintenance mode.');
61	}
62
63	function fs_connect( $directories = array() ) {
64	global $wp_filesystem;
65
66	if ( false === ($credentials = $this->skin->request_filesystem_credentials()) )
67	return false;
68
69	if ( ! WP_Filesystem($credentials) ) {
70	$error = true;
71	if ( is_object($wp_filesystem) && $wp_filesystem->errors->get_error_code() )
72	$error = $wp_filesystem->errors;
73	$this->skin->request_filesystem_credentials($error); //Failed to connect, Error and request again
74	return false;
75	}
76
77	if ( ! is_object($wp_filesystem) )
78	return new WP_Error('fs_unavailable', $this->strings['fs_unavailable'] );
79
80	if ( is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code() )
81	return new WP_Error('fs_error', $this->strings['fs_error'], $wp_filesystem->errors);
82
83	foreach ( (array)$directories as $dir ) {
84	switch ( $dir ) {
85	case ABSPATH:
86	if ( ! $wp_filesystem->abspath() )
87	return new WP_Error('fs_no_root_dir', $this->strings['fs_no_root_dir']);
88	break;
89	case WP_CONTENT_DIR:
90	if ( ! $wp_filesystem->wp_content_dir() )
91	return new WP_Error('fs_no_content_dir', $this->strings['fs_no_content_dir']);
92	break;
93	case WP_PLUGIN_DIR:
94	if ( ! $wp_filesystem->wp_plugins_dir() )
95	return new WP_Error('fs_no_plugins_dir', $this->strings['fs_no_plugins_dir']);
96	break;
97	case WP_CONTENT_DIR . '/themes':
98	if ( ! $wp_filesystem->find_folder(WP_CONTENT_DIR . '/themes') )
99	return new WP_Error('fs_no_themes_dir', $this->strings['fs_no_themes_dir']);
100	break;
101	default:
102	if ( ! $wp_filesystem->find_folder($dir) )
103	return new WP_Error('fs_no_folder', sprintf($this->strings['fs_no_folder'], $dir));
104	break;
105	}
106	}
107	return true;
108	} //end fs_connect();
109
110	function download_package($package) {
111
112	if ( ! preg_match('!^(http\|https\|ftp)://!i', $package) && file_exists($package) ) //Local file or remote?
113	return $package; //must be a local file..
114
115	if ( empty($package) )
116	return new WP_Error('no_package', $this->strings['no_package']);
117
118	$this->skin->feedback('downloading_package', $package);
119
120	$download_file = download_url($package);
121
122	if ( is_wp_error($download_file) )
123	return new WP_Error('download_failed', $this->strings['download_failed'], $download_file->get_error_message());
124
125	return $download_file;
126	}
127
128	function unpack_package($package, $delete_package = true) {
129	global $wp_filesystem;
130
131	$this->skin->feedback('unpack_package');
132
133	$upgrade_folder = $wp_filesystem->wp_content_dir() . 'upgrade/';
134
135	//Clean up contents of upgrade directory beforehand.
136	$upgrade_files = $wp_filesystem->dirlist($upgrade_folder);
137	if ( !empty($upgrade_files) ) {
138	foreach ( $upgrade_files as $file )
139	$wp_filesystem->delete($upgrade_folder . $file['name'], true);
140	}
141
142	//We need a working directory
143	$working_dir = $upgrade_folder . basename($package, '.zip');
144
145	// Clean up working directory
146	if ( $wp_filesystem->is_dir($working_dir) )
147	$wp_filesystem->delete($working_dir, true);
148
149	// Unzip package to working directory
150	$result = unzip_file($package, $working_dir); //TODO optimizations, Copy when Move/Rename would suffice?
151
152	// Once extracted, delete the package if required.
153	if ( $delete_package )
154	unlink($package);
155
156	if ( is_wp_error($result) ) {
157	$wp_filesystem->delete($working_dir, true);
158	return $result;
159	}
160
161	return $working_dir;
162	}
163
164	function install_package($args = array()) {
165	global $wp_filesystem;
166	$defaults = array( 'source' => '', 'destination' => '', //Please always pass these
167	'clear_destination' => false, 'clear_working' => false,
168	'hook_extra' => array());
169
170	$args = wp_parse_args($args, $defaults);
171	extract($args);
172
173	@set_time_limit( 300 );
174
175	if ( empty($source) \|\| empty($destination) )
176	return new WP_Error('bad_request', $this->strings['bad_request']);
177
178	$this->skin->feedback('installing_package');
179
180	$res = apply_filters('upgrader_pre_install', true, $hook_extra);
181	if ( is_wp_error($res) )
182	return $res;
183
184	//Retain the Original source and destinations
185	$remote_source = $source;
186	$local_destination = $destination;
187
188	$source_files = array_keys( $wp_filesystem->dirlist($remote_source) );
189	$remote_destination = $wp_filesystem->find_folder($local_destination);
190
191	//Locate which directory to copy to the new folder, This is based on the actual folder holding the files.
192	if ( 1 == count($source_files) && $wp_filesystem->is_dir( trailingslashit($source) . $source_files[0] . '/') ) //Only one folder? Then we want its contents.
193	$source = trailingslashit($source) . trailingslashit($source_files[0]);
194	elseif ( count($source_files) == 0 )
195	return new WP_Error('bad_package', $this->strings['bad_package']); //There are no files?
196	//else //Its only a single file, The upgrader will use the foldername of this file as the destination folder. foldername is based on zip filename.
197
198	//Hook ability to change the source file location..
199	$source = apply_filters('upgrader_source_selection', $source, $remote_source, $this);
200	if ( is_wp_error($source) )
201	return $source;
202
203	//Has the source location changed? If so, we need a new source_files list.
204	if ( $source !== $remote_source )
205	$source_files = array_keys( $wp_filesystem->dirlist($source) );
206
207	//Protection against deleting files in any important base directories.
208	if ( in_array( $destination, array(ABSPATH, WP_CONTENT_DIR, WP_PLUGIN_DIR, WP_CONTENT_DIR . '/themes') ) ) {
209	$remote_destination = trailingslashit($remote_destination) . trailingslashit(basename($source));
210	$destination = trailingslashit($destination) . trailingslashit(basename($source));
211	}
212
213	//If we're not clearing the destination folder, and something exists there allready, Bail.
214	if ( ! $clear_destination && $wp_filesystem->exists($remote_destination) ) {
215	$wp_filesystem->delete($remote_source, true); //Clear out the source files.
216	return new WP_Error('folder_exists', $this->strings['folder_exists'], $remote_destination );
217	} else if ( $clear_destination ) {
218	//We're going to clear the destination if theres something there
219	$this->skin->feedback('remove_old');
220
221	$removed = true;
222	if ( $wp_filesystem->exists($remote_destination) )
223	$removed = $wp_filesystem->delete($remote_destination, true);
224
225	$removed = apply_filters('upgrader_clear_destination', $removed, $local_destination, $remote_destination, $hook_extra);
226
227	if ( is_wp_error($removed) )
228	return $removed;
229	else if ( ! $removed )
230	return new WP_Error('remove_old_failed', $this->strings['remove_old_failed']);
231	}
232
233	//Create destination if needed
234	if ( !$wp_filesystem->exists($remote_destination) )
235	if ( !$wp_filesystem->mkdir($remote_destination, FS_CHMOD_DIR) )
236	return new WP_Error('mkdir_failed', $this->strings['mkdir_failed'], $remote_destination);
237
238	// Copy new version of item into place.
239	$result = copy_dir($source, $remote_destination);
240	if ( is_wp_error($result) ) {
241	if ( $clear_working )
242	$wp_filesystem->delete($remote_source, true);
243	return $result;
244	}
245
246	//Clear the Working folder?
247	if ( $clear_working )
248	$wp_filesystem->delete($remote_source, true);
249
250	$destination_name = basename( str_replace($local_destination, '', $destination) );
251	if ( '.' == $destination_name )
252	$destination_name = '';
253
254	$this->result = compact('local_source', 'source', 'source_name', 'source_files', 'destination', 'destination_name', 'local_destination', 'remote_destination', 'clear_destination', 'delete_source_dir');
255
256	$res = apply_filters('upgrader_post_install', true, $hook_extra, $this->result);
257	if ( is_wp_error($res) ) {
258	$this->result = $res;
259	return $res;
260	}
261
262	//Bombard the calling function will all the info which we've just used.
263	return $this->result;
264	}
265
266	function run($options) {
267
268	$defaults = array( 'package' => '', //Please always pass this.
269	'destination' => '', //And this
270	'clear_destination' => false,
271	'clear_working' => true,
272	'hook_extra' => array() //Pass any extra $hook_extra args here, this will be passed to any hooked filters.
273	);
274
275	$options = wp_parse_args($options, $defaults);
276	extract($options);
277
278	//Connect to the Filesystem first.
279	$res = $this->fs_connect( array(WP_CONTENT_DIR, $destination) );
280	if ( ! $res ) //Mainly for non-connected filesystem.
281	return false;
282
283	if ( is_wp_error($res) ) {
284	$this->skin->error($res);
285	return $res;
286	}
287
288	$this->skin->header();
289	$this->skin->before();
290
291	//Download the package (Note, This just returns the filename of the file if the package is a local file)
292	$download = $this->download_package( $package );
293	if ( is_wp_error($download) ) {
294	$this->skin->error($download);
295	return $download;
296	}
297
298	//Unzip's the file into a temporary directory
299	$working_dir = $this->unpack_package( $download );
300	if ( is_wp_error($working_dir) ) {
301	$this->skin->error($working_dir);
302	return $working_dir;
303	}
304
305	//With the given options, this installs it to the destination directory.
306	$result = $this->install_package( array(
307	'source' => $working_dir,
308	'destination' => $destination,
309	'clear_destination' => $clear_destination,
310	'clear_working' => $clear_working,
311	'hook_extra' => $hook_extra
312	) );
313	$this->skin->set_result($result);
314	if ( is_wp_error($result) ) {
315	$this->skin->error($result);
316	$this->skin->feedback('process_failed');
317	} else {
318	//Install Suceeded
319	$this->skin->feedback('process_success');
320	}
321	$this->skin->after();
322	$this->skin->footer();
323	return $result;
324	}
325
326	function maintenance_mode($enable = false) {
327	global $wp_filesystem;
328	$file = $wp_filesystem->abspath() . '.maintenance';
329	if ( $enable ) {
330	$this->skin->feedback('maintenance_start');
331	// Create maintenance file to signal that we are upgrading
332	$maintenance_string = '<?php $upgrading = ' . time() . '; ?>';
333	$wp_filesystem->delete($file);
334	$wp_filesystem->put_contents($file, $maintenance_string, FS_CHMOD_FILE);
335	} else if ( !$enable && $wp_filesystem->exists($file) ) {
336	$this->skin->feedback('maintenance_end');
337	$wp_filesystem->delete($file);
338	}
339	}
340
341	}
342
343	/**
344	* Plugin Upgrader class for WordPress Plugins, It is designed to upgrade/install plugins from a local zip, remote zip URL, or uploaded zip file.
345	*
346	* @TODO More Detailed docs, for methods as well.
347	*
348	* @package WordPress
349	* @subpackage Upgrader
350	* @since 2.8.0
351	*/
352	class Plugin_Upgrader extends WP_Upgrader {
353
354	var $result;
355
356	function upgrade_strings() {
357	$this->strings['up_to_date'] = __('The plugin is at the latest version.');
358	$this->strings['no_package'] = __('Upgrade package not available.');
359	$this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>.');
360	$this->strings['unpack_package'] = __('Unpacking the update.');
361	$this->strings['deactivate_plugin'] = __('Deactivating the plugin.');
362	$this->strings['remove_old'] = __('Removing the old version of the plugin.');
363	$this->strings['remove_old_failed'] = __('Could not remove the old plugin.');
364	$this->strings['process_failed'] = __('Plugin upgrade Failed.');
365	$this->strings['process_success'] = __('Plugin upgraded successfully.');
366	}
367
368	function install_strings() {
369	$this->strings['no_package'] = __('Install package not available.');
370	$this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>.');
371	$this->strings['unpack_package'] = __('Unpacking the package.');
372	$this->strings['installing_package'] = __('Installing the plugin.');
373	$this->strings['process_failed'] = __('Plugin Install Failed.');
374	$this->strings['process_success'] = __('Plugin Installed successfully.');
375	}
376
377	function install($package) {
378
379	$this->init();
380	$this->install_strings();
381
382	$this->run(array(
383	'package' => $package,
384	'destination' => WP_PLUGIN_DIR,
385	'clear_destination' => false, //Do not overwrite files.
386	'clear_working' => true,
387	'hook_extra' => array()
388	));
389
390	// Force refresh of plugin update information
391	delete_transient('update_plugins');
392
393	}
394
395	function upgrade($plugin) {
396
397	$this->init();
398	$this->upgrade_strings();
399
400	$current = get_transient( 'update_plugins' );
401	if ( !isset( $current->response[ $plugin ] ) ) {
402	$this->skin->set_result(false);
403	$this->skin->error('up_to_date');
404	$this->skin->after();
405	return false;
406	}
407
408	// Get the URL to the zip file
409	$r = $current->response[ $plugin ];
410
411	add_filter('upgrader_pre_install', array(&$this, 'deactivate_plugin_before_upgrade'), 10, 2);
412	add_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'), 10, 4);
413	//'source_selection' => array(&$this, 'source_selection'), //theres a track ticket to move up the directory for zip's which are made a bit differently, useful for non-.org plugins.
414
415	$this->run(array(
416	'package' => $r->package,
417	'destination' => WP_PLUGIN_DIR,
418	'clear_destination' => true,
419	'clear_working' => true,
420	'hook_extra' => array(
421	'plugin' => $plugin
422	)
423	));
424
425	//Cleanup our hooks, incase something else does a upgrade on this connection.
426	remove_filter('upgrader_pre_install', array(&$this, 'deactivate_plugin_before_upgrade'));
427	remove_filter('upgrader_clear_destination', array(&$this, 'delete_old_plugin'));
428
429	if ( ! $this->result \|\| is_wp_error($this->result) )
430	return $this->result;
431
432	// Force refresh of plugin update information
433	delete_transient('update_plugins');
434	}
435
436	//return plugin info.
437	function plugin_info() {
438	if ( ! is_array($this->result) )
439	return false;
440	if ( empty($this->result['destination_name']) )
441	return false;
442
443	$plugin = get_plugins('/' . $this->result['destination_name']); //Ensure to pass with leading slash
444	if ( empty($plugin) )
445	return false;
446
447	$pluginfiles = array_keys($plugin); //Assume the requested plugin is the first in the list
448
449	return $this->result['destination_name'] . '/' . $pluginfiles[0];
450	}
451
452	//Hooked to pre_install
453	function deactivate_plugin_before_upgrade($return, $plugin) {
454
455	if ( is_wp_error($return) ) //Bypass.
456	return $return;
457
458	$plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
459	if ( empty($plugin) )
460	return new WP_Error('bad_request', $this->strings['bad_request']);
461
462	if ( is_plugin_active($plugin) ) {
463	$this->skin->feedback('deactivate_plugin');
464	//Deactivate the plugin silently, Prevent deactivation hooks from running.
465	deactivate_plugins($plugin, true);
466	}
467	}
468
469	//Hooked to upgrade_clear_destination
470	function delete_old_plugin($removed, $local_destination, $remote_destination, $plugin) {
471	global $wp_filesystem;
472
473	if ( is_wp_error($removed) )
474	return $removed; //Pass errors through.
475
476	$plugin = isset($plugin['plugin']) ? $plugin['plugin'] : '';
477	if ( empty($plugin) )
478	return new WP_Error('bad_request', $this->strings['bad_request']);
479
480	$plugins_dir = $wp_filesystem->wp_plugins_dir();
481	$this_plugin_dir = trailingslashit( dirname($plugins_dir . $plugin) );
482
483	if ( ! $wp_filesystem->exists($this_plugin_dir) ) //If its already vanished.
484	return $removed;
485
486	// If plugin is in its own directory, recursively delete the directory.
487	if ( strpos($plugin, '/') && $this_plugin_dir != $plugins_dir ) //base check on if plugin includes directory seperator AND that its not the root plugin folder
488	$deleted = $wp_filesystem->delete($this_plugin_dir, true);
489	else
490	$deleted = $wp_filesystem->delete($plugins_dir . $plugin);
491
492	if ( ! $deleted )
493	return new WP_Error('remove_old_failed', $this->strings['remove_old_failed']);
494
495	return $removed;
496	}
497	}
498
499	/**
500	* Theme Upgrader class for WordPress Themes, It is designed to upgrade/install themes from a local zip, remote zip URL, or uploaded zip file.
501	*
502	* @TODO More Detailed docs, for methods as well.
503	*
504	* @package WordPress
505	* @subpackage Upgrader
506	* @since 2.8.0
507	*/
508	class Theme_Upgrader extends WP_Upgrader {
509
510	var $result;
511
512	function upgrade_strings() {
513	$this->strings['up_to_date'] = __('The theme is at the latest version.');
514	$this->strings['no_package'] = __('Upgrade package not available.');
515	$this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>.');
516	$this->strings['unpack_package'] = __('Unpacking the update.');
517	$this->strings['remove_old'] = __('Removing the old version of the theme.');
518	$this->strings['remove_old_failed'] = __('Could not remove the old theme.');
519	$this->strings['process_failed'] = __('Theme upgrade Failed.');
520	$this->strings['process_success'] = __('Theme upgraded successfully.');
521	}
522
523	function install_strings() {
524	$this->strings['no_package'] = __('Install package not available.');
525	$this->strings['downloading_package'] = __('Downloading install package from <span class="code">%s</span>.');
526	$this->strings['unpack_package'] = __('Unpacking the package.');
527	$this->strings['installing_package'] = __('Installing the theme.');
528	$this->strings['process_failed'] = __('Theme Install Failed.');
529	$this->strings['process_success'] = __('Theme Installed successfully.');
530	}
531
532	function install($package) {
533
534	$this->init();
535	$this->install_strings();
536
537	$options = array(
538	'package' => $package,
539	'destination' => WP_CONTENT_DIR . '/themes',
540	'clear_destination' => false, //Do not overwrite files.
541	'clear_working' => true
542	);
543
544	$this->run($options);
545
546	if ( ! $this->result \|\| is_wp_error($this->result) )
547	return $this->result;
548
549	// Force refresh of theme update information
550	delete_transient('update_themes');
551
552	if ( empty($result['destination_name']) )
553	return false;
554	else
555	return $result['destination_name'];
556	}
557
558	function upgrade($theme) {
559
560	$this->init();
561	$this->upgrade_strings();
562
563	// Is an update available?
564	$current = get_transient( 'update_themes' );
565	if ( !isset( $current->response[ $theme ] ) ) {
566	$this->skin->set_result(false);
567	$this->skin->error('up_to_date');
568	$this->skin->after();
569	return false;
570	}
571
572	$r = $current->response[ $theme ];
573
574	add_filter('upgrader_pre_install', array(&$this, 'current_before'), 10, 2);
575	add_filter('upgrader_post_install', array(&$this, 'current_after'), 10, 2);
576	add_filter('upgrader_clear_destination', array(&$this, 'delete_old_theme'), 10, 4);
577
578	$options = array(
579	'package' => $r['package'],
580	'destination' => WP_CONTENT_DIR . '/themes',
581	'clear_destination' => true,
582	'clear_working' => true,
583	'hook_extra' => array(
584	'theme' => $theme
585	)
586	);
587
588	$this->run($options);
589
590	if ( ! $this->result \|\| is_wp_error($this->result) )
591	return $this->result;
592
593	// Force refresh of theme update information
594	delete_transient('update_themes');
595
596	return true;
597	}
598
599	function current_before($return, $theme) {
600
601	if ( is_wp_error($return) )
602	return $return;
603
604	$theme = isset($theme['theme']) ? $theme['theme'] : '';
605
606	if ( $theme != get_stylesheet() ) //If not current
607	return $return;
608	//Change to maintainence mode now.
609	$this->maintenance_mode(true);
610
611	return $return;
612	}
613	function current_after($return, $theme) {
614	if ( is_wp_error($return) )
615	return $return;
616
617	$theme = isset($theme['theme']) ? $theme['theme'] : '';
618
619	if ( $theme != get_stylesheet() ) //If not current
620	return $return;
621
622	//Ensure stylesheet name hasnt changed after the upgrade:
623	if ( $theme == get_stylesheet() && $theme != $this->result['destination_name'] ) {
624	$theme_info = $this->theme_info();
625	$stylesheet = $this->result['destination_name'];
626	$template = !empty($theme_info['Template']) ? $theme_info['Template'] : $stylesheet;
627	switch_theme($template, $stylesheet, true);
628	}
629
630	//Time to remove maintainence mode
631	$this->maintenance_mode(false);
632	return $return;
633	}
634
635	function delete_old_theme($removed, $local_destination, $remote_destination, $theme) {
636	global $wp_filesystem;
637
638	$theme = isset($theme['theme']) ? $theme['theme'] : '';
639
640	if ( is_wp_error($removed) \|\| empty($theme) )
641	return $removed; //Pass errors through.
642
643	$themes_dir = $wp_filesystem->wp_themes_dir();
644	if ( $wp_filesystem->exists( trailingslashit($themes_dir) . $theme ) )
645	if ( ! $wp_filesystem->delete( trailingslashit($themes_dir) . $theme, true ) )
646	return false;
647	return true;
648	}
649
650	function theme_info() {
651	if ( empty($this->result['destination_name']) )
652	return false;
653	return get_theme_data(WP_CONTENT_DIR . '/themes/' . $this->result['destination_name'] . '/style.css');
654	}
655
656	}
657
658	/**
659	* Core Upgrader class for WordPress. It allows for WordPress to upgrade itself in combiantion with the wp-admin/includes/update-core.php file
660	*
661	* @TODO More Detailed docs, for methods as well.
662	*
663	* @package WordPress
664	* @subpackage Upgrader
665	* @since 2.8.0
666	*/
667	class Core_Upgrader extends WP_Upgrader {
668
669	function upgrade_strings() {
670	$this->strings['up_to_date'] = __('WordPress is at the latest version.');
671	$this->strings['no_package'] = __('Upgrade package not available.');
672	$this->strings['downloading_package'] = __('Downloading update from <span class="code">%s</span>.');
673	$this->strings['unpack_package'] = __('Unpacking the update.');
674	$this->strings['copy_failed'] = __('Could not copy files.');
675	}
676
677	function upgrade($current) {
678	global $wp_filesystem;
679
680	$this->init();
681	$this->upgrade_strings();
682
683	if ( !empty($feedback) )
684	add_filter('update_feedback', $feedback);
685
686	// Is an update available?
687	if ( !isset( $current->response ) \|\| $current->response == 'latest' )
688	return new WP_Error('up_to_date', $this->strings['up_to_date']);
689
690	$res = $this->fs_connect( array(ABSPATH, WP_CONTENT_DIR) );
691	if ( is_wp_error($res) )
692	return $res;
693
694	$wp_dir = trailingslashit($wp_filesystem->abspath());
695
696	$download = $this->download_package( $current->package );
697	if ( is_wp_error($download) )
698	return $download;
699
700	$working_dir = $this->unpack_package( $download );
701	if ( is_wp_error($working_dir) )
702	return $working_dir;
703
704	// Copy update-core.php from the new version into place.
705	if ( !$wp_filesystem->copy($working_dir . '/wordpress/wp-admin/includes/update-core.php', $wp_dir . 'wp-admin/includes/update-core.php', true) ) {
706	$wp_filesystem->delete($working_dir, true);
707	return new WP_Error('copy_failed', $this->strings['copy_failed']);
708	}
709	$wp_filesystem->chmod($wp_dir . 'wp-admin/includes/update-core.php', FS_CHMOD_FILE);
710
711	require(ABSPATH . 'wp-admin/includes/update-core.php');
712
713	return update_core($working_dir, $wp_dir);
714	}
715
716	}
717
718	/**
719	* Generic Skin for the WordPress Upgrader classes. This skin is designed to be extended for specific purposes.
720	*
721	* @TODO More Detailed docs, for methods as well.
722	*
723	* @package WordPress
724	* @subpackage Upgrader
725	* @since 2.8.0
726	*/
727	class WP_Upgrader_Skin {
728
729	var $upgrader;
730	var $done_header = false;
731
732	function WP_Upgrader_Skin($args = array()) {
733	return $this->__construct($args);
734	}
735	function __construct($args = array()) {
736	$defaults = array( 'url' => '', 'nonce' => '', 'title' => '', 'context' => false );
737	$this->options = wp_parse_args($args, $defaults);
738	}
739
740	function set_upgrader(&$upgrader) {
741	if ( is_object($upgrader) )
742	$this->upgrader =& $upgrader;
743	}
744	function set_result($result) {
745	$this->result = $result;
746	}
747
748	function request_filesystem_credentials($error = false) {
749	$url = $this->options['url'];
750	$context = $this->options['context'];
751	if ( !empty($this->options['nonce']) )
752	$url = wp_nonce_url($url, $this->options['nonce']);
753	return request_filesystem_credentials($url, '', $error, $context); //Possible to bring inline, Leaving as is for now.
754	}
755
756	function header() {
757	if ( $this->done_header )
758	return;
759	$this->done_header = true;
760	echo '<div class="wrap">';
761	echo screen_icon();
762	echo '<h2>' . $this->options['title'] . '</h2>';
763	}
764	function footer() {
765	echo '</div>';
766	}
767
768	function error($errors) {
769	if ( ! $this->done_header )
770	$this->header();
771	if ( is_string($errors) ) {
772	$this->feedback($errors);
773	} elseif ( is_wp_error($errors) && $errors->get_error_code() ) {
774	foreach ( $errors->get_error_messages() as $message ) {
775	if ( $errors->get_error_data() )
776	$this->feedback($message . ' ' . $errors->get_error_data() );
777	else
778	$this->feedback($message);
779	}
780	}
781	}
782
783	function feedback($string) {
784	if ( isset( $this->upgrader->strings[$string] ) )
785	$string = $this->upgrader->strings[$string];
786
787	if ( strpos($string, '%') !== false ) {
788	$args = func_get_args();
789	$args = array_splice($args, 1);
790	if ( !empty($args) )
791	$string = vsprintf($string, $args);
792	}
793	if ( empty($string) )
794	return;
795	show_message($string);
796	}
797	function before() {}
798	function after() {}
799
800	}
801
802	/**
803	* Plugin Upgrader Skin for WordPress Plugin Upgrades.
804	*
805	* @TODO More Detailed docs, for methods as well.
806	*
807	* @package WordPress
808	* @subpackage Upgrader
809	* @since 2.8.0
810	*/
811	class Plugin_Upgrader_Skin extends WP_Upgrader_Skin {
812	var $plugin = '';
813	var $plugin_active = false;
814
815	function Plugin_Upgrader_Skin($args = array()) {
816	return $this->__construct($args);
817	}
818
819	function __construct($args = array()) {
820	$defaults = array( 'url' => '', 'plugin' => '', 'nonce' => '', 'title' => __('Upgrade Plugin') );
821	$args = wp_parse_args($args, $defaults);
822
823	$this->plugin = $args['plugin'];
824
825	$this->plugin_active = is_plugin_active($this->plugin);
826
827	parent::__construct($args);
828	}
829
830	function after() {
831	$this->plugin = $this->upgrader->plugin_info();
832	if( !empty($this->plugin) && !is_wp_error($this->result) && $this->plugin_active ){
833	show_message(__('Attempting reactivation of the plugin'));
834	echo '<iframe style="border:0;overflow:hidden" width="100%" height="170px" src="' . wp_nonce_url('update.php?action=activate-plugin&plugin=' . $this->plugin, 'activate-plugin_' . $this->plugin) .'"></iframe>';
835	}
836	$update_actions = array(
837	'activate_plugin' => '<a href="' . wp_nonce_url('plugins.php?action=activate&plugin=' . $this->plugin, 'activate-plugin_' . $this->plugin) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin') . '</a>',
838	'plugins_page' => '<a href="' . admin_url('plugins.php') . '" title="' . esc_attr__('Goto plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>'
839	);
840	if ( $this->plugin_active )
841	unset( $update_actions['activate_plugin'] );
842	if ( ! $this->result \|\| is_wp_error($this->result) )
843	unset( $update_actions['activate_plugin'] );
844
845	$update_actions = apply_filters('update_plugin_complete_actions', $update_actions, $this->plugin);
846	if ( ! empty($update_actions) )
847	$this->feedback('<strong>' . __('Actions:') . '</strong> ' . implode(' \| ', (array)$update_actions));
848	}
849	}
850
851	/**
852	* Plugin Installer Skin for WordPress Plugin Installer.
853	*
854	* @TODO More Detailed docs, for methods as well.
855	*
856	* @package WordPress
857	* @subpackage Upgrader
858	* @since 2.8.0
859	*/
860	class Plugin_Installer_Skin extends WP_Upgrader_Skin {
861	var $api;
862	var $type;
863
864	function Plugin_Installer_Skin($args = array()) {
865	return $this->__construct($args);
866	}
867
868	function __construct($args = array()) {
869	$defaults = array( 'type' => 'web', 'url' => '', 'plugin' => '', 'nonce' => '', 'title' => '' );
870	$args = wp_parse_args($args, $defaults);
871
872	$this->type = $args['type'];
873	$this->api = isset($args['api']) ? $args['api'] : array();
874
875	parent::__construct($args);
876	}
877
878	function before() {
879	if ( !empty($this->api) )
880	$this->upgrader->strings['process_success'] = sprintf( __('Successfully installed the plugin <strong>%s %s</strong>.'), $this->api->name, $this->api->version);
881	}
882
883	function after() {
884
885	$plugin_file = $this->upgrader->plugin_info();
886
887	$install_actions = array(
888	'activate_plugin' => '<a href="' . wp_nonce_url('plugins.php?action=activate&plugin=' . $plugin_file, 'activate-plugin_' . $plugin_file) . '" title="' . esc_attr__('Activate this plugin') . '" target="_parent">' . __('Activate Plugin') . '</a>',
889	);
890
891	if ( $this->type == 'web' )
892	$install_actions['plugins_page'] = '<a href="' . admin_url('plugin-install.php') . '" title="' . esc_attr__('Return to Plugin Installer') . '" target="_parent">' . __('Return to Plugin Installer') . '</a>';
893	else
894	$install_actions['plugins_page'] = '<a href="' . admin_url('plugins.php') . '" title="' . esc_attr__('Return to Plugins page') . '" target="_parent">' . __('Return to Plugins page') . '</a>';
895
896
897	if ( ! $this->result \|\| is_wp_error($this->result) )
898	unset( $install_actions['activate_plugin'] );
899
900	$install_actions = apply_filters('install_plugin_complete_actions', $install_actions, $this->api, $plugin_file);
901	if ( ! empty($install_actions) )
902	$this->feedback('<strong>' . __('Actions:') . '</strong> ' . implode(' \| ', (array)$install_actions));
903	}
904	}
905
906	/**
907	* Theme Installer Skin for the WordPress Theme Installer.
908	*
909	* @TODO More Detailed docs, for methods as well.
910	*
911	* @package WordPress
912	* @subpackage Upgrader
913	* @since 2.8.0
914	*/
915	class Theme_Installer_Skin extends WP_Upgrader_Skin {
916	var $api;
917	var $type;
918
919	function Theme_Installer_Skin($args = array()) {
920	return $this->__construct($args);
921	}
922
923	function __construct($args = array()) {
924	$defaults = array( 'type' => 'web', 'url' => '', 'theme' => '', 'nonce' => '', 'title' => '' );
925	$args = wp_parse_args($args, $defaults);
926
927	$this->type = $args['type'];
928	$this->api = isset($args['api']) ? $args['api'] : array();
929
930	parent::__construct($args);
931	}
932
933	function before() {
934	if ( !empty($this->api) ) {
935	/* translators: 1: theme name, 2: version */
936	$this->upgrader->strings['process_success'] = sprintf( __('Successfully installed the theme <strong>%1$s %2$s</strong>.'), $this->api->name, $this->api->version);
937	}
938	}
939
940	function after() {
941	if ( empty($this->upgrader->result['destination_name']) )
942	return;
943
944	$theme_info = $this->upgrader->theme_info();
945	if ( empty($theme_info) )
946	return;
947	$name = $theme_info['Name'];
948	$stylesheet = $this->upgrader->result['destination_name'];
949	$template = !empty($theme_info['Template']) ? $theme_info['Template'] : $stylesheet;
950
951	$preview_link = htmlspecialchars( add_query_arg( array('preview' => 1, 'template' => $template, 'stylesheet' => $stylesheet, 'TB_iframe' => 'true' ), trailingslashit(esc_url(get_option('home'))) ) );
952	$activate_link = wp_nonce_url("themes.php?action=activate&template=" . urlencode($template) . "&stylesheet=" . urlencode($stylesheet), 'switch-theme_' . $template);
953
954	$install_actions = array(
955	'preview' => '<a href="' . $preview_link . '" class="thickbox thickbox-preview" title="' . esc_attr(sprintf(__('Preview “%s”'), $name)) . '">' . __('Preview') . '</a>',
956	'activate' => '<a href="' . $activate_link . '" class="activatelink" title="' . esc_attr( sprintf( __('Activate “%s”'), $name ) ) . '">' . __('Activate') . '</a>'
957	);
958
959	if ( $this->type == 'web' )
960	$install_actions['themes_page'] = '<a href="' . admin_url('theme-install.php') . '" title="' . esc_attr__('Return to Theme Installer') . '" target="_parent">' . __('Return to Theme Installer') . '</a>';
961	else
962	$install_actions['themes_page'] = '<a href="' . admin_url('themes.php') . '" title="' . esc_attr__('Themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>';
963
964	if ( ! $this->result \|\| is_wp_error($this->result) )
965	unset( $install_actions['activate'], $install_actions['preview'] );
966
967	$install_actions = apply_filters('install_theme_complete_actions', $install_actions, $this->api, $stylesheet, $theme_info);
968	if ( ! empty($install_actions) )
969	$this->feedback('<strong>' . __('Actions:') . '</strong> ' . implode(' \| ', (array)$install_actions));
970	}
971	}
972
973	/**
974	* Theme Upgrader Skin for WordPress Theme Upgrades.
975	*
976	* @TODO More Detailed docs, for methods as well.
977	*
978	* @package WordPress
979	* @subpackage Upgrader
980	* @since 2.8.0
981	*/
982	class Theme_Upgrader_Skin extends WP_Upgrader_Skin {
983	var $theme = '';
984
985	function Theme_Upgrader_Skin($args = array()) {
986	return $this->__construct($args);
987	}
988
989	function __construct($args = array()) {
990	$defaults = array( 'url' => '', 'theme' => '', 'nonce' => '', 'title' => __('Upgrade Theme') );
991	$args = wp_parse_args($args, $defaults);
992
993	$this->theme = $args['theme'];
994
995	parent::__construct($args);
996	}
997
998	function after() {
999
1000	if ( !empty($this->upgrader->result['destination_name']) &&
1001	($theme_info = $this->upgrader->theme_info()) &&
1002	!empty($theme_info) ) {
1003
1004	$name = $theme_info['Name'];
1005	$stylesheet = $this->upgrader->result['destination_name'];
1006	$template = !empty($theme_info['Template']) ? $theme_info['Template'] : $stylesheet;
1007
1008	$preview_link = htmlspecialchars( add_query_arg( array('preview' => 1, 'template' => $template, 'stylesheet' => $stylesheet, 'TB_iframe' => 'true' ), trailingslashit(esc_url(get_option('home'))) ) );
1009	$activate_link = wp_nonce_url("themes.php?action=activate&template=" . urlencode($template) . "&stylesheet=" . urlencode($stylesheet), 'switch-theme_' . $template);
1010
1011	$update_actions = array(
1012	'preview' => '<a href="' . $preview_link . '" class="thickbox thickbox-preview" title="' . esc_attr(sprintf(__('Preview “%s”'), $name)) . '">' . __('Preview') . '</a>',
1013	'activate' => '<a href="' . $activate_link . '" class="activatelink" title="' . esc_attr( sprintf( __('Activate “%s”'), $name ) ) . '">' . __('Activate') . '</a>',
1014	);
1015	if ( ( ! $this->result \|\| is_wp_error($this->result) ) \|\| $stylesheet == get_stylesheet() )
1016	unset($update_actions['preview'], $update_actions['activate']);
1017	}
1018
1019	$update_actions['themes_page'] = '<a href="' . admin_url('themes.php') . '" title="' . esc_attr__('Return to Themes page') . '" target="_parent">' . __('Return to Themes page') . '</a>';
1020
1021	$update_actions = apply_filters('update_theme_complete_actions', $update_actions, $this->theme);
1022	if ( ! empty($update_actions) )
1023	$this->feedback('<strong>' . __('Actions:') . '</strong> ' . implode(' \| ', (array)$update_actions));
1024	}
1025	}
1026
1027	/**
1028	* Upgrade Skin helper for File uploads. This class handles the upload process and passes it as if its a local file to the Upgrade/Installer functions.
1029	*
1030	* @TODO More Detailed docs, for methods as well.
1031	*
1032	* @package WordPress
1033	* @subpackage Upgrader
1034	* @since 2.8.0
1035	*/
1036	class File_Upload_Upgrader {
1037	var $package;
1038	var $filename;
1039
1040	function File_Upload_Upgrader($form, $urlholder) {
1041	return $this->__construct($form, $urlholder);
1042	}
1043	function __construct($form, $urlholder) {
1044	if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) )
1045	wp_die($uploads['error']);
1046
1047	if ( empty($_FILES[$form]['name']) && empty($_GET[$urlholder]) )
1048	wp_die(__('Please select a file'));
1049
1050	if ( !empty($_FILES) )
1051	$this->filename = $_FILES[$form]['name'];
1052	else if ( isset($_GET[$urlholder]) )
1053	$this->filename = $_GET[$urlholder];
1054
1055	//Handle a newly uploaded file, Else assume its already been uploaded
1056	if ( !empty($_FILES) ) {
1057	$this->filename = wp_unique_filename( $uploads['basedir'], $this->filename );
1058	$this->package = $uploads['basedir'] . '/' . $this->filename;
1059
1060	// Move the file to the uploads dir
1061	if ( false === @ move_uploaded_file( $_FILES[$form]['tmp_name'], $this->package) )
1062	wp_die( sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path']));
1063	} else {
1064	$this->package = $uploads['basedir'] . '/' . $this->filename;
1065	}
1066	}
1067	}

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