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source: trunk/admin/include/themes.class.php @ 10327

Last change on this file since 10327 was 9472, checked in by patdenice, 14 years ago
Add themes autmatic update functionality.
File size: 20.8 KB

Line
1	<?php
2	// +-----------------------------------------------------------------------+
3	// \| Piwigo - a PHP based photo gallery \|
4	// +-----------------------------------------------------------------------+
5	// \| Copyright(C) 2008-2011 Piwigo Team http://piwigo.org \|
6	// \| Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net \|
7	// \| Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick \|
8	// +-----------------------------------------------------------------------+
9	// \| This program is free software; you can redistribute it and/or modify \|
10	// \| it under the terms of the GNU General Public License as published by \|
11	// \| the Free Software Foundation \|
12	// \| \|
13	// \| This program is distributed in the hope that it will be useful, but \|
14	// \| WITHOUT ANY WARRANTY; without even the implied warranty of \|
15	// \| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU \|
16	// \| General Public License for more details. \|
17	// \| \|
18	// \| You should have received a copy of the GNU General Public License \|
19	// \| along with this program; if not, write to the Free Software \|
20	// \| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, \|
21	// \| USA. \|
22	// +-----------------------------------------------------------------------+
23
24	class themes
25	{
26	var $fs_themes = array();
27	var $db_themes_by_id = array();
28	var $server_themes = array();
29
30	/**
31	* Initialize $fs_themes and $db_themes_by_id
32	*/
33	function themes()
34	{
35	$this->get_fs_themes();
36
37	foreach ($this->get_db_themes() as $db_theme)
38	{
39	$this->db_themes_by_id[$db_theme['id']] = $db_theme;
40	}
41	}
42
43	/**
44	* Set tabsheet for themes pages.
45	* @param string selected page.
46	*/
47	function set_tabsheet($selected)
48	{
49	include_once(PHPWG_ROOT_PATH.'admin/include/tabsheet.class.php');
50
51	$link = get_root_url().'admin.php?page=';
52
53	$tabsheet = new tabsheet();
54	$tabsheet->add('themes_installed', l10n('Installed Themes'), $link.'themes_installed');
55	$tabsheet->add('themes_update', l10n('Check for updates'), $link.'themes_update');
56	$tabsheet->add('themes_new', l10n('Add New Theme'), $link.'themes_new');
57	$tabsheet->select($selected);
58	$tabsheet->assign();
59	}
60
61	/**
62	* Perform requested actions
63	* @param string - action
64	* @param string - theme id
65	* @param array - errors
66	*/
67	function perform_action($action, $theme_id)
68	{
69	if (isset($this->db_themes_by_id[$theme_id]))
70	{
71	$crt_db_theme = $this->db_themes_by_id[$theme_id];
72	}
73
74	$file_to_include = PHPWG_THEMES_PATH.'/'.$theme_id.'/admin/maintain.inc.php';
75
76	$errors = array();
77
78	switch ($action)
79	{
80	case 'activate':
81	if (isset($crt_db_theme))
82	{
83	// the theme is already active
84	break;
85	}
86
87	if ('default' == $theme_id)
88	{
89	// you can't activate the "default" theme
90	break;
91	}
92
93	$missing_parent = $this->missing_parent_theme($theme_id);
94	if (isset($missing_parent))
95	{
96	array_push(
97	$errors,
98	sprintf(
99	l10n('Impossible to activate this theme, the parent theme is missing: %s'),
100	$missing_parent
101	)
102	);
103
104	break;
105	}
106
107	if (file_exists($file_to_include))
108	{
109	include($file_to_include);
110	if (function_exists('theme_activate'))
111	{
112	theme_activate($theme_id, $this->fs_themes[$theme_id]['version'], $errors);
113	}
114	}
115
116	if (empty($errors))
117	{
118	$query = '
119	INSERT INTO '.THEMES_TABLE.'
120	(id, version, name)
121	VALUES(\''.$theme_id.'\',
122	\''.$this->fs_themes[$theme_id]['version'].'\',
123	\''.$this->fs_themes[$theme_id]['name'].'\')
124	;';
125	pwg_query($query);
126	}
127	break;
128
129	case 'deactivate':
130	if (!isset($crt_db_theme))
131	{
132	// the theme is already inactive
133	break;
134	}
135
136	// you can't deactivate the last theme
137	if (count($this->db_themes_by_id) <= 1)
138	{
139	array_push(
140	$errors,
141	l10n('Impossible to deactivate this theme, you need at least one theme.')
142	);
143	break;
144	}
145
146	if ($theme_id == get_default_theme())
147	{
148	// find a random theme to replace
149	$new_theme = null;
150
151	$query = '
152	SELECT
153	id
154	FROM '.THEMES_TABLE.'
155	WHERE id != \''.$theme_id.'\'
156	;';
157	$result = pwg_query($query);
158	if (pwg_db_num_rows($result) == 0)
159	{
160	$new_theme = 'default';
161	}
162	else
163	{
164	list($new_theme) = pwg_db_fetch_row($result);
165	}
166
167	$this->set_default_theme($new_theme);
168	}
169
170	if (file_exists($file_to_include))
171	{
172	include($file_to_include);
173	if (function_exists('theme_deactivate'))
174	{
175	theme_deactivate($theme_id);
176	}
177	}
178
179	$query = '
180	DELETE
181	FROM '.THEMES_TABLE.'
182	WHERE id= \''.$theme_id.'\'
183	;';
184	pwg_query($query);
185	break;
186
187	case 'delete':
188	if (!empty($crt_db_theme))
189	{
190	array_push($errors, 'CANNOT DELETE - THEME IS INSTALLED');
191	break;
192	}
193	if (!isset($this->fs_themes[$theme_id]))
194	{
195	// nothing to do here
196	break;
197	}
198
199	$children = $this->get_children_themes($theme_id);
200	if (count($children) > 0)
201	{
202	array_push(
203	$errors,
204	sprintf(
205	l10n('Impossible to delete this theme. Other themes depends on it: %s'),
206	implode(', ', $children)
207	)
208	);
209	break;
210	}
211
212	if (!$this->deltree(PHPWG_THEMES_PATH.$theme_id))
213	{
214	$this->send_to_trash(PHPWG_THEMES_PATH.$theme_id);
215	}
216	break;
217
218	case 'set_default':
219	// first we need to know which users are using the current default theme
220	$this->set_default_theme($theme_id);
221	break;
222	}
223	return $errors;
224	}
225
226	function missing_parent_theme($theme_id)
227	{
228	if (!isset($this->fs_themes[$theme_id]['parent']))
229	{
230	return null;
231	}
232
233	$parent = $this->fs_themes[$theme_id]['parent'];
234
235	if ('default' == $parent)
236	{
237	return null;
238	}
239
240	if (!isset($this->fs_themes[$parent]))
241	{
242	return $parent;
243	}
244
245	return $this->missing_parent_theme($parent);
246	}
247
248	function get_children_themes($theme_id)
249	{
250	$children = array();
251
252	foreach ($this->fs_themes as $test_child)
253	{
254	if (isset($test_child['parent']) and $test_child['parent'] == $theme_id)
255	{
256	array_push($children, $test_child['name']);
257	}
258	}
259
260	return $children;
261	}
262
263	function set_default_theme($theme_id)
264	{
265	global $conf;
266
267	// first we need to know which users are using the current default theme
268	$default_theme = get_default_theme();
269
270	$query = '
271	SELECT
272	user_id
273	FROM '.USER_INFOS_TABLE.'
274	WHERE theme = \''.$default_theme.'\'
275	;';
276	$user_ids = array_unique(
277	array_merge(
278	array_from_query($query, 'user_id'),
279	array($conf['guest_id'], $conf['default_user_id'])
280	)
281	);
282
283	// $user_ids can't be empty, at least the default user has the default
284	// theme
285
286	$query = '
287	UPDATE '.USER_INFOS_TABLE.'
288	SET theme = \''.$theme_id.'\'
289	WHERE user_id IN ('.implode(',', $user_ids).')
290	;';
291	pwg_query($query);
292	}
293
294	function get_db_themes($id='')
295	{
296	$query = '
297	SELECT
298	*
299	FROM '.THEMES_TABLE;
300
301	$clauses = array();
302	if (!empty($id))
303	{
304	$clauses[] = 'id = \''.$id.'\'';
305	}
306	if (count($clauses) > 0)
307	{
308	$query .= '
309	WHERE '. implode(' AND ', $clauses);
310	}
311
312	$result = pwg_query($query);
313	$themes = array();
314	while ($row = pwg_db_fetch_assoc($result))
315	{
316	array_push($themes, $row);
317	}
318	return $themes;
319	}
320
321
322	/**
323	* Get themes defined in the theme directory
324	*/
325	function get_fs_themes()
326	{
327	$dir = opendir(PHPWG_THEMES_PATH);
328
329	while ($file = readdir($dir))
330	{
331	if ($file!='.' and $file!='..')
332	{
333	$path = PHPWG_THEMES_PATH.$file;
334	if (is_dir($path)
335	and preg_match('/^[a-zA-Z0-9-_]+$/', $file)
336	and file_exists($path.'/themeconf.inc.php')
337	)
338	{
339	$theme = array(
340	'id' => $file,
341	'name' => $file,
342	'version' => '0',
343	'uri' => '',
344	'description' => '',
345	'author' => '',
346	);
347	$theme_data = implode( '', file($path.'/themeconf.inc.php') );
348
349	if ( preg_match("\|Theme Name: (.*)\|", $theme_data, $val) )
350	{
351	$theme['name'] = trim( $val[1] );
352	}
353	if (preg_match("\|Version: (.*)\|", $theme_data, $val))
354	{
355	$theme['version'] = trim($val[1]);
356	}
357	if ( preg_match("\|Theme URI: (.*)\|", $theme_data, $val) )
358	{
359	$theme['uri'] = trim($val[1]);
360	}
361	if ($desc = load_language('description.txt', $path.'/', array('return' => true)))
362	{
363	$theme['description'] = trim($desc);
364	}
365	elseif ( preg_match("\|Description: (.*)\|", $theme_data, $val) )
366	{
367	$theme['description'] = trim($val[1]);
368	}
369	if ( preg_match("\|Author: (.*)\|", $theme_data, $val) )
370	{
371	$theme['author'] = trim($val[1]);
372	}
373	if ( preg_match("\|Author URI: (.*)\|", $theme_data, $val) )
374	{
375	$theme['author uri'] = trim($val[1]);
376	}
377	if (!empty($theme['uri']) and strpos($theme['uri'] , 'extension_view.php?eid='))
378	{
379	list( , $extension) = explode('extension_view.php?eid=', $theme['uri']);
380	if (is_numeric($extension)) $theme['extension'] = $extension;
381	}
382	if (preg_match('/["\']parent["\'][^"\']+["\']([^"\']+)["\']/', $theme_data, $val))
383	{
384	$theme['parent'] = $val[1];
385	}
386	if (preg_match('/["\']activable["\'].*?(true\|false)/', $theme_data, $val))
387	{
388	$theme['activable'] = get_boolean($val[1]);
389	}
390
391	// screenshot
392	$screenshot_path = $path.'/screenshot.png';
393	if (file_exists($screenshot_path))
394	{
395	$theme['screenshot'] = $screenshot_path;
396	}
397	else
398	{
399	global $conf;
400	$theme['screenshot'] =
401	PHPWG_ROOT_PATH.'admin/themes/'
402	.$conf['admin_theme']
403	.'/images/missing_screenshot.png'
404	;
405	}
406
407	$admin_file = $path.'/admin/admin.inc.php';
408	if (file_exists($admin_file))
409	{
410	$theme['admin_uri'] = get_root_url().'admin.php?page=theme&theme='.$file;
411	}
412
413	// IMPORTANT SECURITY !
414	$theme = array_map('htmlspecialchars', $theme);
415	$this->fs_themes[$file] = $theme;
416	}
417	}
418	}
419	closedir($dir);
420	}
421
422	/**
423	* Sort fs_themes
424	*/
425	function sort_fs_themes($order='name')
426	{
427	switch ($order)
428	{
429	case 'name':
430	uasort($this->fs_themes, 'name_compare');
431	break;
432	case 'status':
433	$this->sort_themes_by_state();
434	break;
435	case 'author':
436	uasort($this->fs_themes, array($this, 'theme_author_compare'));
437	break;
438	case 'id':
439	uksort($this->fs_themes, 'strcasecmp');
440	break;
441	}
442	}
443
444	/**
445	* Retrieve PEM server datas to $server_themes
446	*/
447	function get_server_themes($new=false)
448	{
449	global $user;
450
451	$get_data = array(
452	'category_id' => 10,
453	'format' => 'php',
454	);
455
456	// Retrieve PEM versions
457	$version = PHPWG_VERSION;
458	$versions_to_check = array();
459	$url = PEM_URL . '/api/get_version_list.php';
460	if (fetchRemote($url, $result, $get_data) and $pem_versions = @unserialize($result))
461	{
462	if (!preg_match('/^\d+\.\d+\.\d+/', $version))
463	{
464	$version = $pem_versions[0]['name'];
465	}
466	$branch = substr($version, 0, strrpos($version, '.'));
467	foreach ($pem_versions as $pem_version)
468	{
469	if (strpos($pem_version['name'], $branch) === 0)
470	{
471	$versions_to_check[] = $pem_version['id'];
472	}
473	}
474	}
475	if (empty($versions_to_check))
476	{
477	return false;
478	}
479
480	// Themes to check
481	$themes_to_check = array();
482	foreach($this->fs_themes as $fs_theme)
483	{
484	if (isset($fs_theme['extension']))
485	{
486	$themes_to_check[] = $fs_theme['extension'];
487	}
488	}
489
490	// Retrieve PEM themes infos
491	$url = PEM_URL . '/api/get_revision_list.php';
492	$get_data = array_merge($get_data, array(
493	'last_revision_only' => 'true',
494	'version' => implode(',', $versions_to_check),
495	'lang' => substr($user['language'], 0, 2),
496	'get_nb_downloads' => 'true',
497	)
498	);
499
500	if (!empty($themes_to_check))
501	{
502	if ($new)
503	{
504	$get_data['extension_exclude'] = implode(',', $themes_to_check);
505	}
506	else
507	{
508	$get_data['extension_include'] = implode(',', $themes_to_check);
509	}
510	}
511	if (fetchRemote($url, $result, $get_data))
512	{
513	$pem_themes = @unserialize($result);
514	if (!is_array($pem_themes))
515	{
516	return false;
517	}
518	foreach ($pem_themes as $theme)
519	{
520	$this->server_themes[$theme['extension_id']] = $theme;
521	}
522	return true;
523	}
524	return false;
525	}
526
527	/**
528	* Sort $server_themes
529	*/
530	function sort_server_themes($order='date')
531	{
532	switch ($order)
533	{
534	case 'date':
535	krsort($this->server_themes);
536	break;
537	case 'revision':
538	usort($this->server_themes, array($this, 'extension_revision_compare'));
539	break;
540	case 'name':
541	uasort($this->server_themes, array($this, 'extension_name_compare'));
542	break;
543	case 'author':
544	uasort($this->server_themes, array($this, 'extension_author_compare'));
545	break;
546	case 'downloads':
547	usort($this->server_themes, array($this, 'extension_downloads_compare'));
548	break;
549	}
550	}
551
552	/**
553	* Extract theme files from archive
554	*
555	* @param string - install or upgrade
556	* @param string - remote revision identifier (numeric)
557	* @param string - theme id or extension id
558	*/
559	function extract_theme_files($action, $revision, $dest)
560	{
561	if ($archive = tempnam( PHPWG_THEMES_PATH, 'zip'))
562	{
563	$url = PEM_URL . '/download.php';
564	$get_data = array(
565	'rid' => $revision,
566	'origin' => 'piwigo_'.$action,
567	);
568
569	if ($handle = @fopen($archive, 'wb') and fetchRemote($url, $handle, $get_data))
570	{
571	fclose($handle);
572	include(PHPWG_ROOT_PATH.'admin/include/pclzip.lib.php');
573	$zip = new PclZip($archive);
574	if ($list = $zip->listContent())
575	{
576	foreach ($list as $file)
577	{
578	// we search main.inc.php in archive
579	if (basename($file['filename']) == 'themeconf.inc.php'
580	and (!isset($main_filepath)
581	or strlen($file['filename']) < strlen($main_filepath)))
582	{
583	$main_filepath = $file['filename'];
584	}
585	}
586	if (isset($main_filepath))
587	{
588	$root = dirname($main_filepath); // main.inc.php path in archive
589	if ($action == 'upgrade')
590	{
591	$extract_path = PHPWG_THEMES_PATH . $dest;
592	}
593	else
594	{
595	$extract_path = PHPWG_THEMES_PATH . ($root == '.' ? 'extension_' . $dest : basename($root));
596	}
597	if (
598	$result = $zip->extract(
599	PCLZIP_OPT_PATH, $extract_path,
600	PCLZIP_OPT_REMOVE_PATH, $root,
601	PCLZIP_OPT_REPLACE_NEWER
602	)
603	)
604	{
605	foreach ($result as $file)
606	{
607	if ($file['stored_filename'] == $main_filepath)
608	{
609	$status = $file['status'];
610	break;
611	}
612	}
613	if (file_exists($extract_path.'/obsolete.list')
614	and $old_files = file($extract_path.'/obsolete.list', FILE_IGNORE_NEW_LINES)
615	and !empty($old_files))
616	{
617	array_push($old_files, 'obsolete.list');
618	foreach($old_files as $old_file)
619	{
620	$path = $extract_path.'/'.$old_file;
621	if (is_file($path))
622	{
623	@unlink($path);
624	}
625	elseif (is_dir($path))
626	{
627	if (!$this->deltree($path))
628	{
629	$this->send_to_trash($path);
630	}
631	}
632	}
633	}
634	}
635	else $status = 'extract_error';
636	}
637	else $status = 'archive_error';
638	}
639	else $status = 'archive_error';
640	}
641	else $status = 'dl_archive_error';
642	}
643	else $status = 'temp_path_error';
644
645	@unlink($archive);
646	return $status;
647	}
648
649	/**
650	* delete $path directory
651	* @param string - path
652	*/
653	function deltree($path)
654	{
655	if (is_dir($path))
656	{
657	$fh = opendir($path);
658	while ($file = readdir($fh))
659	{
660	if ($file != '.' and $file != '..')
661	{
662	$pathfile = $path . '/' . $file;
663	if (is_dir($pathfile))
664	{
665	$this->deltree($pathfile);
666	}
667	else
668	{
669	@unlink($pathfile);
670	}
671	}
672	}
673	closedir($fh);
674	return @rmdir($path);
675	}
676	}
677
678	/**
679	* send $path to trash directory
680	* @param string - path
681	*/
682	function send_to_trash($path)
683	{
684	$trash_path = PHPWG_THEMES_PATH . 'trash';
685	if (!is_dir($trash_path))
686	{
687	@mkdir($trash_path);
688	$file = @fopen($trash_path . '/.htaccess', 'w');
689	@fwrite($file, 'deny from all');
690	@fclose($file);
691	}
692	while ($r = $trash_path . '/' . md5(uniqid(rand(), true)))
693	{
694	if (!is_dir($r))
695	{
696	@rename($path, $r);
697	break;
698	}
699	}
700	}
701
702	/**
703	* Sort functions
704	*/
705	function theme_version_compare($a, $b)
706	{
707	$pattern = array('/([a-z])/ei', '/\.+/', '/\.\Z\|\A\./');
708	$replacement = array( "'.'.intval('\\1', 36).'.'", '.', '');
709
710	$array = preg_replace($pattern, $replacement, array($a, $b));
711
712	return version_compare($array[0], $array[1], '>=');
713	}
714
715	function extension_revision_compare($a, $b)
716	{
717	if ($a['revision_date'] < $b['revision_date']) return 1;
718	else return -1;
719	}
720
721	function extension_name_compare($a, $b)
722	{
723	return strcmp(strtolower($a['extension_name']), strtolower($b['extension_name']));
724	}
725
726	function extension_author_compare($a, $b)
727	{
728	$r = strcasecmp($a['author_name'], $b['author_name']);
729	if ($r == 0) return $this->extension_name_compare($a, $b);
730	else return $r;
731	}
732
733	function theme_author_compare($a, $b)
734	{
735	$r = strcasecmp($a['author'], $b['author']);
736	if ($r == 0) return name_compare($a, $b);
737	else return $r;
738	}
739
740	function extension_downloads_compare($a, $b)
741	{
742	if ($a['extension_nb_downloads'] < $b['extension_nb_downloads']) return 1;
743	else return -1;
744	}
745
746	function sort_themes_by_state()
747	{
748	uasort($this->fs_themes, 'name_compare');
749
750	$active_themes = array();
751	$inactive_themes = array();
752	$not_installed = array();
753
754	foreach($this->fs_themes as $theme_id => $theme)
755	{
756	if (isset($this->db_themes_by_id[$theme_id]))
757	{
758	$this->db_themes_by_id[$theme_id]['state'] == 'active' ?
759	$active_themes[$theme_id] = $theme : $inactive_themes[$theme_id] = $theme;
760	}
761	else
762	{
763	$not_installed[$theme_id] = $theme;
764	}
765	}
766	$this->fs_themes = $active_themes + $inactive_themes + $not_installed;
767	}
768
769	// themes specific methods
770	function get_fs_themes_with_ini()
771	{
772	$themes_dir = PHPWG_ROOT_PATH.'themes';
773
774	$fs_themes = array();
775
776	foreach (get_dirs($themes_dir) as $theme)
777	{
778	$conf_file = $themes_dir.'/'.$theme.'/themeconf.inc.php';
779	if (file_exists($conf_file))
780	{
781	$theme_data = array(
782	'name' => $theme,
783	);
784
785	$ini_file = $themes_dir.'/'.$theme.'/theme.ini';
786	if (file_exists($ini_file))
787	{
788	$theme_ini = parse_ini_file($ini_file);
789	if (isset($theme_ini['extension_id']))
790	{
791	$theme_data['extension_id'] = $theme_ini['extension_id'];
792	}
793	}
794
795	array_push($fs_themes, $theme_data);
796	}
797	}
798
799	echo '<pre>'; print_r($fs_themes); echo '</pre>';
800	}
801
802
803	}
804	?>

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