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source: trunk/admin/include/plugins.class.php @ 10159

Last change on this file since 10159 was 10129, checked in by patdenice, 14 years ago
feature:2250 Remove useless query for delete.
Property svn:eol-style set to `LF`
File size: 20.1 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 plugins
25	{
26	var $fs_plugins = array();
27	var $db_plugins_by_id = array();
28	var $server_plugins = array();
29	var $default_plugins = array('LocalFilesEditor', 'language_switch', 'c13y_upgrade', 'admin_multi_view');
30
31	/**
32	* Initialize $fs_plugins and $db_plugins_by_id
33	*/
34	function plugins()
35	{
36	$this->get_fs_plugins();
37
38	foreach (get_db_plugins() as $db_plugin)
39	{
40	$this->db_plugins_by_id[$db_plugin['id']] = $db_plugin;
41	}
42	}
43
44	/**
45	* Set tabsheet for plugins pages.
46	* @param string selected page.
47	*/
48	function set_tabsheet($selected)
49	{
50	include_once(PHPWG_ROOT_PATH.'admin/include/tabsheet.class.php');
51
52	$link = get_root_url().'admin.php?page=';
53
54	$tabsheet = new tabsheet();
55	$tabsheet->add('plugins_list', l10n('Plugin list'), $link.'plugins_list');
56	$tabsheet->add('plugins_update', l10n('Check for updates'), $link.'plugins_update');
57	$tabsheet->add('plugins_new', l10n('Other plugins'), $link.'plugins_new');
58	$tabsheet->select($selected);
59	$tabsheet->assign();
60	}
61
62	/**
63	* Perform requested actions
64	* @param string - action
65	* @param string - plugin id
66	* @param array - errors
67	*/
68	function perform_action($action, $plugin_id)
69	{
70	if (isset($this->db_plugins_by_id[$plugin_id]))
71	{
72	$crt_db_plugin = $this->db_plugins_by_id[$plugin_id];
73	}
74	$file_to_include = PHPWG_PLUGINS_PATH . $plugin_id . '/maintain.inc.php';
75
76	$errors = array();
77
78	switch ($action)
79	{
80	case 'install':
81	if (!empty($crt_db_plugin))
82	{
83	array_push($errors, 'CANNOT INSTALL - ALREADY INSTALLED');
84	break;
85	}
86	if (!isset($this->fs_plugins[$plugin_id]))
87	{
88	array_push($errors, 'CANNOT INSTALL - NO SUCH PLUGIN');
89	break;
90	}
91	if (file_exists($file_to_include))
92	{
93	include_once($file_to_include);
94	if (function_exists('plugin_install'))
95	{
96	plugin_install($plugin_id, $this->fs_plugins[$plugin_id]['version'], $errors);
97	}
98	}
99	if (empty($errors))
100	{
101	$query = '
102	INSERT INTO ' . PLUGINS_TABLE . ' (id,version) VALUES (\''
103	. $plugin_id . '\',\'' . $this->fs_plugins[$plugin_id]['version'] . '\'
104	)';
105	pwg_query($query);
106	}
107	break;
108
109	case 'activate':
110	if (!isset($crt_db_plugin))
111	{
112	array_push($errors, 'CANNOT ACTIVATE - NOT INSTALLED');
113	break;
114	}
115	if ($crt_db_plugin['state'] != 'inactive')
116	{
117	array_push($errors, 'invalid current state ' . $crt_db_plugin['state']);
118	break;
119	}
120	if (file_exists($file_to_include))
121	{
122	include_once($file_to_include);
123	if (function_exists('plugin_activate'))
124	{
125	plugin_activate($plugin_id, $crt_db_plugin['version'], $errors);
126	}
127	}
128	if (empty($errors))
129	{
130	$query = '
131	UPDATE ' . PLUGINS_TABLE . '
132	SET state=\'active\', version=\''.$this->fs_plugins[$plugin_id]['version'].'\'
133	WHERE id=\'' . $plugin_id . '\'';
134	pwg_query($query);
135	}
136	break;
137
138	case 'deactivate':
139	if (!isset($crt_db_plugin))
140	{
141	die ('CANNOT DEACTIVATE - NOT INSTALLED');
142	}
143	if ($crt_db_plugin['state'] != 'active')
144	{
145	die('invalid current state ' . $crt_db_plugin['state']);
146	}
147	$query = '
148	UPDATE ' . PLUGINS_TABLE . ' SET state=\'inactive\' WHERE id=\'' . $plugin_id . '\'';
149	pwg_query($query);
150	if (file_exists($file_to_include))
151	{
152	include_once($file_to_include);
153	if (function_exists('plugin_deactivate'))
154	{
155	plugin_deactivate($plugin_id);
156	}
157	}
158	break;
159
160	case 'uninstall':
161	if (!isset($crt_db_plugin))
162	{
163	die ('CANNOT UNINSTALL - NOT INSTALLED');
164	}
165	$query = '
166	DELETE FROM ' . PLUGINS_TABLE . ' WHERE id=\'' . $plugin_id . '\'';
167	pwg_query($query);
168	if (file_exists($file_to_include))
169	{
170	include_once($file_to_include);
171	if (function_exists('plugin_uninstall'))
172	{
173	plugin_uninstall($plugin_id);
174	}
175	}
176	break;
177
178	case 'delete':
179	if (!empty($crt_db_plugin))
180	{
181	array_push($errors, 'CANNOT DELETE - PLUGIN IS INSTALLED');
182	break;
183	}
184	if (!isset($this->fs_plugins[$plugin_id]))
185	{
186	array_push($errors, 'CANNOT DELETE - NO SUCH PLUGIN');
187	break;
188	}
189	if (!$this->deltree(PHPWG_PLUGINS_PATH . $plugin_id))
190	{
191	$this->send_to_trash(PHPWG_PLUGINS_PATH . $plugin_id);
192	}
193	break;
194	}
195	return $errors;
196	}
197
198	/**
199	* Get plugins defined in the plugin directory
200	*/
201	function get_fs_plugins()
202	{
203	$dir = opendir(PHPWG_PLUGINS_PATH);
204	while ($file = readdir($dir))
205	{
206	if ($file!='.' and $file!='..')
207	{
208	$path = PHPWG_PLUGINS_PATH.$file;
209	if (is_dir($path) and !is_link($path)
210	and preg_match('/^[a-zA-Z0-9-_]+$/', $file )
211	and file_exists($path.'/main.inc.php')
212	)
213	{
214	$plugin = array(
215	'name'=>$file,
216	'version'=>'0',
217	'uri'=>'',
218	'description'=>'',
219	'author'=>'',
220	);
221	$plg_data = implode( '', file($path.'/main.inc.php') );
222
223	if ( preg_match("\|Plugin Name: (.*)\|", $plg_data, $val) )
224	{
225	$plugin['name'] = trim( $val[1] );
226	}
227	if (preg_match("\|Version: (.*)\|", $plg_data, $val))
228	{
229	$plugin['version'] = trim($val[1]);
230	}
231	if ( preg_match("\|Plugin URI: (.*)\|", $plg_data, $val) )
232	{
233	$plugin['uri'] = trim($val[1]);
234	}
235	if ($desc = load_language('description.txt', $path.'/', array('return' => true)))
236	{
237	$plugin['description'] = trim($desc);
238	}
239	elseif ( preg_match("\|Description: (.*)\|", $plg_data, $val) )
240	{
241	$plugin['description'] = trim($val[1]);
242	}
243	if ( preg_match("\|Author: (.*)\|", $plg_data, $val) )
244	{
245	$plugin['author'] = trim($val[1]);
246	}
247	if ( preg_match("\|Author URI: (.*)\|", $plg_data, $val) )
248	{
249	$plugin['author uri'] = trim($val[1]);
250	}
251	if (!empty($plugin['uri']) and strpos($plugin['uri'] , 'extension_view.php?eid='))
252	{
253	list( , $extension) = explode('extension_view.php?eid=', $plugin['uri']);
254	if (is_numeric($extension)) $plugin['extension'] = $extension;
255	}
256	// IMPORTANT SECURITY !
257	$plugin = array_map('htmlspecialchars', $plugin);
258	$this->fs_plugins[$file] = $plugin;
259	}
260	}
261	}
262	closedir($dir);
263	}
264
265	/**
266	* Sort fs_plugins
267	*/
268	function sort_fs_plugins($order='name')
269	{
270	switch ($order)
271	{
272	case 'name':
273	uasort($this->fs_plugins, 'name_compare');
274	break;
275	case 'status':
276	$this->sort_plugins_by_state();
277	break;
278	case 'author':
279	uasort($this->fs_plugins, array($this, 'plugin_author_compare'));
280	break;
281	case 'id':
282	uksort($this->fs_plugins, 'strcasecmp');
283	break;
284	}
285	}
286
287	// Retrieve PEM versions
288	function get_versions_to_check($version=PHPWG_VERSION)
289	{
290	$versions_to_check = array();
291	$url = PEM_URL . '/api/get_version_list.php?category=12&format=php';
292	if (fetchRemote($url, $result) and $pem_versions = @unserialize($result))
293	{
294	if (!preg_match('/^\d+\.\d+\.\d+/', $version))
295	{
296	$version = $pem_versions[0]['name'];
297	}
298	$branch = substr($version, 0, strrpos($version, '.'));
299	foreach ($pem_versions as $pem_version)
300	{
301	if (strpos($pem_version['name'], $branch) === 0)
302	{
303	$versions_to_check[] = $pem_version['id'];
304	}
305	}
306	}
307	return $versions_to_check;
308	}
309
310	/**
311	* Retrieve PEM server datas to $server_plugins
312	*/
313	function get_server_plugins($new=false)
314	{
315	global $user;
316
317	$versions_to_check = $this->get_versions_to_check();
318	if (empty($versions_to_check))
319	{
320	return false;
321	}
322
323	// Plugins to check
324	$plugins_to_check = array();
325	foreach($this->fs_plugins as $fs_plugin)
326	{
327	if (isset($fs_plugin['extension']))
328	{
329	$plugins_to_check[] = $fs_plugin['extension'];
330	}
331	}
332
333	// Retrieve PEM plugins infos
334	$url = PEM_URL . '/api/get_revision_list.php';
335	$get_data = array(
336	'category_id' => 12,
337	'format' => 'php',
338	'last_revision_only' => 'true',
339	'version' => implode(',', $versions_to_check),
340	'lang' => substr($user['language'], 0, 2),
341	'get_nb_downloads' => 'true',
342	);
343
344	if (!empty($plugins_to_check))
345	{
346	if ($new)
347	{
348	$get_data['extension_exclude'] = implode(',', $plugins_to_check);
349	}
350	else
351	{
352	$get_data['extension_include'] = implode(',', $plugins_to_check);
353	}
354	}
355	if (fetchRemote($url, $result, $get_data))
356	{
357	$pem_plugins = @unserialize($result);
358	if (!is_array($pem_plugins))
359	{
360	return false;
361	}
362	foreach ($pem_plugins as $plugin)
363	{
364	$this->server_plugins[$plugin['extension_id']] = $plugin;
365	}
366	return true;
367	}
368	return false;
369	}
370
371	function get_incompatible_plugins($actualize=false)
372	{
373	if (isset($_SESSION['incompatible_plugins']) and !$actualize
374	and $_SESSION['incompatible_plugins']['~~expire~~'] > time())
375	{
376	return $_SESSION['incompatible_plugins'];
377	}
378
379	$_SESSION['incompatible_plugins'] = array('~~expire~~' => time() + 300);
380
381	$versions_to_check = $this->get_versions_to_check();
382	if (empty($versions_to_check))
383	{
384	return false;
385	}
386
387	// Plugins to check
388	$plugins_to_check = array();
389	foreach($this->fs_plugins as $fs_plugin)
390	{
391	if (isset($fs_plugin['extension']))
392	{
393	$plugins_to_check[] = $fs_plugin['extension'];
394	}
395	}
396
397	// Retrieve PEM plugins infos
398	$url = PEM_URL . '/api/get_revision_list.php';
399	$get_data = array(
400	'category_id' => 12,
401	'format' => 'php',
402	'version' => implode(',', $versions_to_check),
403	'extension_include' => implode(',', $plugins_to_check),
404	);
405
406	if (fetchRemote($url, $result, $get_data))
407	{
408	$pem_plugins = @unserialize($result);
409	if (!is_array($pem_plugins))
410	{
411	return false;
412	}
413
414	$server_plugins = array();
415	foreach ($pem_plugins as $plugin)
416	{
417	if (!isset($server_plugins[$plugin['extension_id']]))
418	{
419	$server_plugins[$plugin['extension_id']] = array();
420	}
421	array_push($server_plugins[$plugin['extension_id']], $plugin['revision_name']);
422	}
423
424	foreach ($this->fs_plugins as $plugin_id => $fs_plugin)
425	{
426	if (isset($fs_plugin['extension'])
427	and !in_array($plugin_id, $this->default_plugins)
428	and $fs_plugin['version'] != 'auto'
429	and (!isset($server_plugins[$fs_plugin['extension']]) or !in_array($fs_plugin['version'], $server_plugins[$fs_plugin['extension']])))
430	{
431	$_SESSION['incompatible_plugins'][$plugin_id] = $fs_plugin['version'];
432	}
433	}
434	return $_SESSION['incompatible_plugins'];
435	}
436	return false;
437	}
438
439	/**
440	* Sort $server_plugins
441	*/
442	function sort_server_plugins($order='date')
443	{
444	switch ($order)
445	{
446	case 'date':
447	krsort($this->server_plugins);
448	break;
449	case 'revision':
450	usort($this->server_plugins, array($this, 'extension_revision_compare'));
451	break;
452	case 'name':
453	uasort($this->server_plugins, array($this, 'extension_name_compare'));
454	break;
455	case 'author':
456	uasort($this->server_plugins, array($this, 'extension_author_compare'));
457	break;
458	case 'downloads':
459	usort($this->server_plugins, array($this, 'extension_downloads_compare'));
460	break;
461	}
462	}
463
464	/**
465	* Extract plugin files from archive
466	* @param string - install or upgrade
467	* @param string - archive URL
468	* @param string - plugin id or extension id
469	*/
470	function extract_plugin_files($action, $revision, $dest)
471	{
472	if ($archive = tempnam( PHPWG_PLUGINS_PATH, 'zip'))
473	{
474	$url = PEM_URL . '/download.php';
475	$get_data = array(
476	'rid' => $revision,
477	'origin' => 'piwigo_'.$action,
478	);
479
480	if ($handle = @fopen($archive, 'wb') and fetchRemote($url, $handle, $get_data))
481	{
482	fclose($handle);
483	include(PHPWG_ROOT_PATH.'admin/include/pclzip.lib.php');
484	$zip = new PclZip($archive);
485	if ($list = $zip->listContent())
486	{
487	foreach ($list as $file)
488	{
489	// we search main.inc.php in archive
490	if (basename($file['filename']) == 'main.inc.php'
491	and (!isset($main_filepath)
492	or strlen($file['filename']) < strlen($main_filepath)))
493	{
494	$main_filepath = $file['filename'];
495	}
496	}
497	if (isset($main_filepath))
498	{
499	$root = dirname($main_filepath); // main.inc.php path in archive
500	if ($action == 'upgrade')
501	{
502	$extract_path = PHPWG_PLUGINS_PATH . $dest;
503	}
504	else
505	{
506	$extract_path = PHPWG_PLUGINS_PATH
507	. ($root == '.' ? 'extension_' . $dest : basename($root));
508	}
509	if($result = $zip->extract(PCLZIP_OPT_PATH, $extract_path,
510	PCLZIP_OPT_REMOVE_PATH, $root,
511	PCLZIP_OPT_REPLACE_NEWER))
512	{
513	foreach ($result as $file)
514	{
515	if ($file['stored_filename'] == $main_filepath)
516	{
517	$status = $file['status'];
518	break;
519	}
520	}
521	if (file_exists($extract_path.'/obsolete.list')
522	and $old_files = file($extract_path.'/obsolete.list', FILE_IGNORE_NEW_LINES)
523	and !empty($old_files))
524	{
525	array_push($old_files, 'obsolete.list');
526	foreach($old_files as $old_file)
527	{
528	$path = $extract_path.'/'.$old_file;
529	if (is_file($path))
530	{
531	@unlink($path);
532	}
533	elseif (is_dir($path))
534	{
535	if (!$this->deltree($path))
536	{
537	$this->send_to_trash($path);
538	}
539	}
540	}
541	}
542	}
543	else $status = 'extract_error';
544	}
545	else $status = 'archive_error';
546	}
547	else $status = 'archive_error';
548	}
549	else $status = 'dl_archive_error';
550	}
551	else $status = 'temp_path_error';
552
553	@unlink($archive);
554	return $status;
555	}
556
557	function get_merged_extensions($version=PHPWG_VERSION)
558	{
559	if (isset($_SESSION['merged_extensions']) and $_SESSION['merged_extensions']['~~expire~~'] > time())
560	{
561	return $_SESSION['merged_extensions'];
562	}
563
564	$_SESSION['merged_extensions'] = array('~~expire~~' => time() + 600);
565
566	if (fetchRemote(PHPWG_URL.'/download/merged_extensions.txt', $result))
567	{
568	$rows = explode("\n", $result);
569	foreach ($rows as $row)
570	{
571	if (preg_match('/^(\d+\.\d+): (.)$/', $row, $match))
572	{
573	if (version_compare($version, $match[1], '>='))
574	{
575	$extensions = explode(',', trim($match[2]));
576	$_SESSION['merged_extensions'] = array_merge($_SESSION['merged_extensions'], $extensions);
577	}
578	}
579	}
580	}
581
582	return $_SESSION['merged_extensions'];
583	}
584
585	/**
586	* delete $path directory
587	* @param string - path
588	*/
589	function deltree($path)
590	{
591	if (is_dir($path))
592	{
593	$fh = opendir($path);
594	while ($file = readdir($fh))
595	{
596	if ($file != '.' and $file != '..')
597	{
598	$pathfile = $path . '/' . $file;
599	if (is_dir($pathfile))
600	{
601	$this->deltree($pathfile);
602	}
603	else
604	{
605	@unlink($pathfile);
606	}
607	}
608	}
609	closedir($fh);
610	return @rmdir($path);
611	}
612	}
613
614	/**
615	* send $path to trash directory
616	* @param string - path
617	*/
618	function send_to_trash($path)
619	{
620	$trash_path = PHPWG_PLUGINS_PATH . 'trash';
621	if (!is_dir($trash_path))
622	{
623	@mkdir($trash_path);
624	$file = @fopen($trash_path . '/.htaccess', 'w');
625	@fwrite($file, 'deny from all');
626	@fclose($file);
627	}
628	while ($r = $trash_path . '/' . md5(uniqid(rand(), true)))
629	{
630	if (!is_dir($r))
631	{
632	@rename($path, $r);
633	break;
634	}
635	}
636	}
637
638	/**
639	* Sort functions
640	*/
641	function plugin_version_compare($a, $b)
642	{
643	if (strtolower($a) == 'auto') return false;
644
645	$pattern = array('/([a-z])/ei', '/\.+/', '/\.\Z\|\A\./');
646	$replacement = array( "'.'.intval('\\1', 36).'.'", '.', '');
647
648	$array = preg_replace($pattern, $replacement, array($a, $b));
649
650	return version_compare($array[0], $array[1], '>=');
651	}
652
653	function extension_revision_compare($a, $b)
654	{
655	if ($a['revision_date'] < $b['revision_date']) return 1;
656	else return -1;
657	}
658
659	function extension_name_compare($a, $b)
660	{
661	return strcmp(strtolower($a['extension_name']), strtolower($b['extension_name']));
662	}
663
664	function extension_author_compare($a, $b)
665	{
666	$r = strcasecmp($a['author_name'], $b['author_name']);
667	if ($r == 0) return $this->extension_name_compare($a, $b);
668	else return $r;
669	}
670
671	function plugin_author_compare($a, $b)
672	{
673	$r = strcasecmp($a['author'], $b['author']);
674	if ($r == 0) return name_compare($a, $b);
675	else return $r;
676	}
677
678	function extension_downloads_compare($a, $b)
679	{
680	if ($a['extension_nb_downloads'] < $b['extension_nb_downloads']) return 1;
681	else return -1;
682	}
683
684	function sort_plugins_by_state()
685	{
686	uasort($this->fs_plugins, 'name_compare');
687
688	$active_plugins = array();
689	$inactive_plugins = array();
690	$not_installed = array();
691
692	foreach($this->fs_plugins as $plugin_id => $plugin)
693	{
694	if (isset($this->db_plugins_by_id[$plugin_id]))
695	{
696	$this->db_plugins_by_id[$plugin_id]['state'] == 'active' ?
697	$active_plugins[$plugin_id] = $plugin : $inactive_plugins[$plugin_id] = $plugin;
698	}
699	else
700	{
701	$not_installed[$plugin_id] = $plugin;
702	}
703	}
704	$this->fs_plugins = $active_plugins + $inactive_plugins + $not_installed;
705	}
706	}
707	?>

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