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source: branches/1.4/admin/remote_site.php @ 7198

Last change on this file since 7198 was 675, checked in by plg, 20 years ago
all headers adapted to new year 2005, happy new year
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 21.8 KB

Line
1	<?php
2	// +-----------------------------------------------------------------------+
3	// \| PhpWebGallery - a PHP based picture gallery \|
4	// \| Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net \|
5	// \| Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net \|
6	// +-----------------------------------------------------------------------+
7	// \| branch : BSF (Best So Far)
8	// \| file : $RCSfile$
9	// \| last update : $Date: 2005-01-07 23:10:51 +0000 (Fri, 07 Jan 2005) $
10	// \| last modifier : $Author: plg $
11	// \| revision : $Revision: 675 $
12	// +-----------------------------------------------------------------------+
13	// \| This program is free software; you can redistribute it and/or modify \|
14	// \| it under the terms of the GNU General Public License as published by \|
15	// \| the Free Software Foundation \|
16	// \| \|
17	// \| This program is distributed in the hope that it will be useful, but \|
18	// \| WITHOUT ANY WARRANTY; without even the implied warranty of \|
19	// \| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU \|
20	// \| General Public License for more details. \|
21	// \| \|
22	// \| You should have received a copy of the GNU General Public License \|
23	// \| along with this program; if not, write to the Free Software \|
24	// \| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, \|
25	// \| USA. \|
26	// +-----------------------------------------------------------------------+
27
28	if (!defined('PHPWG_ROOT_PATH'))
29	{
30	die ("Hacking attempt!");
31	}
32	include_once(PHPWG_ROOT_PATH.'admin/include/isadmin.inc.php');
33
34	define('CURRENT_DATE', date('Y-m-d'));
35	// +-----------------------------------------------------------------------+
36	// \| functions \|
37	// +-----------------------------------------------------------------------+
38
39	/**
40	* requests the given $url (a remote create_listing_file.php) and fills a
41	* list of lines corresponding to request output
42	*
43	* @param string $url
44	* @return void
45	*/
46	function remote_output($url)
47	{
48	global $template, $errors, $lang;
49
50	if($lines = @file($url))
51	{
52	$template->assign_block_vars('remote_output', array());
53	// cleaning lines from HTML tags
54	foreach ($lines as $line)
55	{
56	$line = trim(strip_tags($line));
57	if (preg_match('/^PWG-([A-Z]+)-/', $line, $matches))
58	{
59	$template->assign_block_vars(
60	'remote_output.remote_line',
61	array(
62	'CLASS' => 'remote'.ucfirst(strtolower($matches[1])),
63	'CONTENT' => $line
64	)
65	);
66	}
67	}
68	}
69	else
70	{
71	array_push($errors, $lang['remote_site_file_not_found']);
72	}
73	}
74
75	/**
76	* returns an array where are linked the sub-categories id and there
77	* directories corresponding to the given uppercat id
78	*
79	* @param int site_id
80	* @param mixed id_uppercat
81	* @return array
82	*/
83	function database_subdirs($site_id, $id_uppercat)
84	{
85	$database_dirs = array();
86
87	$query = '
88	SELECT id,dir
89	FROM '.CATEGORIES_TABLE.'
90	WHERE site_id = '.$site_id;
91	if (!is_numeric($id_uppercat))
92	{
93	$query.= '
94	AND id_uppercat IS NULL';
95	}
96	else
97	{
98	$query.= '
99	AND id_uppercat = '.$id_uppercat;
100	}
101	// virtual categories not taken
102	$query.= '
103	AND dir IS NOT NULL
104	;';
105	$result = pwg_query($query);
106	while ($row = mysql_fetch_array($result))
107	{
108	$database_dirs[$row['id']] = $row['dir'];
109	}
110
111	return $database_dirs;
112	}
113
114	/**
115	* read $listing_file and update a remote site according to its id
116	*
117	* @param string listing_file
118	* @param int site_id
119	* @return void
120	*/
121	function update_remote_site($listing_file, $site_id)
122	{
123	global $lang, $counts, $template, $removes, $errors;
124
125	if (@fopen($listing_file, 'r'))
126	{
127	$counts = array(
128	'new_elements' => 0,
129	'new_categories' => 0,
130	'del_elements' => 0,
131	'del_categories' => 0
132	);
133	$removes = array();
134
135	$xml_content = getXmlCode($listing_file);
136	insert_remote_category($xml_content, $site_id, 'NULL', 0);
137	update_category();
138	ordering();
139	update_global_rank();
140
141	$template->assign_block_vars(
142	'update',
143	array(
144	'NB_NEW_CATEGORIES'=>$counts['new_categories'],
145	'NB_DEL_CATEGORIES'=>$counts['del_categories'],
146	'NB_NEW_ELEMENTS'=>$counts['new_elements'],
147	'NB_DEL_ELEMENTS'=>$counts['del_elements']
148	));
149
150	if (count($removes) > 0)
151	{
152	$template->assign_block_vars('update.removes', array());
153	}
154	foreach ($removes as $remove)
155	{
156	$template->assign_block_vars('update.removes.remote_remove',
157	array('NAME'=>$remove));
158	}
159	}
160	else
161	{
162	array_push($errors, $lang['remote_site_listing_not_found']);
163	}
164	}
165
166	/**
167	* searchs the "dir" node of the xml_dir given and insert the contained
168	* categories if the are not in the database yet. The function also deletes
169	* the categories that are in the database and not in the xml_file.
170	*
171	* @param string xml_content
172	* @param int site_id
173	* @param mixed id_uppercat
174	* @param int level
175	* @return void
176	*/
177	function insert_remote_category($xml_content, $site_id, $id_uppercat, $level)
178	{
179	global $counts, $removes, $conf;
180
181	$uppercats = '';
182	// 0. retrieving informations on the category to display
183
184	if (is_numeric($id_uppercat))
185	{
186	$query = '
187	SELECT id,name,uppercats,dir,status,visible
188	FROM '.CATEGORIES_TABLE.'
189	WHERE id = '.$id_uppercat.'
190	;';
191	$row = mysql_fetch_array(pwg_query($query));
192	$parent = array('id' => $row['id'],
193	'name' => $row['name'],
194	'dir' => $row['dir'],
195	'uppercats' => $row['uppercats'],
196	'visible' => $row['visible'],
197	'status' => $row['status']);
198
199	insert_remote_element($xml_content, $id_uppercat);
200	}
201
202	// $xml_dirs contains dir names contained in the xml file for this
203	// id_uppercat
204	$xml_dirs = array();
205	$temp_dirs = getChildren($xml_content, 'dir'.$level);
206	foreach ($temp_dirs as $temp_dir)
207	{
208	array_push($xml_dirs, getAttribute($temp_dir, 'name'));
209	}
210
211	// $database_dirs contains dir names contained in the database for this
212	// id_uppercat and site_id
213	$database_dirs = database_subdirs($site_id, $id_uppercat);
214
215	// 3. we have to remove the categories of the database not present anymore
216	$to_delete = array();
217	foreach ($database_dirs as $id => $dir)
218	{
219	if (!in_array($dir, $xml_dirs))
220	{
221	array_push($to_delete, $id);
222	array_push($removes, get_complete_dir($id));
223	}
224	}
225	delete_categories($to_delete);
226
227	// array of new categories to insert
228	$inserts = array();
229
230	// calculate default value at category creation
231	$create_values = array();
232	if (isset($parent))
233	{
234	// at creation, must a category be visible or not ? Warning : if
235	// the parent category is invisible, the category is automatically
236	// create invisible. (invisible = locked)
237	if ('false' == $parent['visible'])
238	{
239	$create_values{'visible'} = 'false';
240	}
241	else
242	{
243	$create_values{'visible'} = $conf['newcat_default_visible'];
244	}
245	// at creation, must a category be public or private ? Warning :
246	// if the parent category is private, the category is
247	// automatically create private.
248	if ('private' == $parent['status'])
249	{
250	$create_values{'status'} = 'private';
251	}
252	else
253	{
254	$create_values{'status'} = $conf['newcat_default_status'];
255	}
256	}
257	else
258	{
259	$create_values{'visible'} = $conf['newcat_default_visible'];
260	$create_values{'status'} = $conf['newcat_default_status'];
261	}
262
263	foreach ($xml_dirs as $xml_dir)
264	{
265	// 5. Is the category already existing ? we create a subcat if not
266	// existing
267	$category_id = array_search($xml_dir, $database_dirs);
268	if (!is_numeric($category_id))
269	{
270	$name = str_replace('_', ' ', $xml_dir);
271
272	$insert = array();
273
274	$insert{'dir'} = $xml_dir;
275	$insert{'name'} = $name;
276	$insert{'site_id'} = $site_id;
277	$insert{'uppercats'} = 'undef';
278	$insert{'commentable'} = $conf['newcat_default_commentable'];
279	$insert{'uploadable'} = 'false';
280	$insert{'status'} = $create_values{'status'};
281	$insert{'visible'} = $create_values{'visible'};
282	if (isset($parent))
283	{
284	$insert{'id_uppercat'} = $parent['id'];
285	}
286	array_push($inserts, $insert);
287	}
288	}
289
290	// we have to create the category
291	if (count($inserts) > 0)
292	{
293	// inserts all found categories
294	$dbfields = array('dir','name','site_id','uppercats','id_uppercat',
295	'commentable','uploadable','status','visible');
296	mass_inserts(CATEGORIES_TABLE, $dbfields, $inserts);
297	$counts{'new_categories'}+= count($inserts);
298
299	// updating uppercats field
300	$query = '
301	UPDATE '.CATEGORIES_TABLE;
302	if (isset($parent))
303	{
304	$query.= "
305	SET uppercats = CONCAT('".$parent['uppercats']."',',',id)
306	WHERE id_uppercat = ".$id_uppercat;
307	}
308	else
309	{
310	$query.= '
311	SET uppercats = id
312	WHERE id_uppercat IS NULL';
313	}
314	$query.= '
315	;';
316	pwg_query($query);
317	}
318
319	// Recursive call on the sub-categories (not virtual ones)
320	$database_dirs = database_subdirs($site_id, $id_uppercat);
321
322	foreach ($temp_dirs as $temp_dir)
323	{
324	$dir = getAttribute($temp_dir, 'name');
325	$id_uppercat = array_search($dir, $database_dirs);
326	insert_remote_category($temp_dir, $site_id, $id_uppercat, $level+1);
327	}
328	}
329
330	/**
331	* searchs the "root" node of $xml_dir (xml string), inserts elements in the
332	* database if new
333	*
334	* @param string xml_dir
335	* @param int category_id
336	* @return void
337	*/
338	function insert_remote_element($xml_dir, $category_id)
339	{
340	global $counts, $lang, $removes;
341
342	$output = '';
343	$root = getChild($xml_dir, 'root');
344
345	$xml_files = array();
346	$xml_elements = getChildren($root, 'element');
347	foreach ($xml_elements as $xml_element)
348	{
349	array_push($xml_files, getAttribute($xml_element,'file'));
350	}
351
352	// we have to delete all the images from the database that are not in the
353	// directory anymore (not in the XML anymore)
354	$query = '
355	SELECT id,file
356	FROM '.IMAGES_TABLE.'
357	WHERE storage_category_id = '.$category_id.'
358	;';
359	$result = pwg_query($query);
360	$to_delete = array();
361	while ($row = mysql_fetch_array($result))
362	{
363	if (!in_array($row['file'], $xml_files))
364	{
365	// local_dir is cached
366	if (!isset($local_dir))
367	{
368	$local_dir = get_local_dir($category_id);
369	}
370	array_push($removes, $local_dir.$row['file']);
371	array_push($to_delete, $row['id']);
372	}
373	}
374	delete_elements($to_delete);
375
376	$database_elements = array();
377	$query = '
378	SELECT file
379	FROM '.IMAGES_TABLE.'
380	WHERE storage_category_id = '.$category_id.'
381	;';
382	$result = pwg_query($query);
383	while ($row = mysql_fetch_array($result))
384	{
385	array_push($database_elements, $row['file']);
386	}
387
388	$inserts = array();
389	foreach ($xml_elements as $xml_element)
390	{
391	// minimal tag : <element file="albatros.jpg"/>
392	$file = getAttribute($xml_element, 'file');
393
394	// is the picture already existing in the database ?
395	if (!in_array($file, $database_elements))
396	{
397	$insert = array();
398	$insert{'file'} = $file;
399	$insert{'storage_category_id'} = $category_id;
400	$insert{'date_available'} = CURRENT_DATE;
401	$optional_atts = array('tn_ext',
402	'representative_ext',
403	'filesize',
404	'width',
405	'height',
406	'date_creation',
407	'author',
408	'keywords',
409	'name',
410	'comment',
411	'path');
412	foreach ($optional_atts as $att)
413	{
414	if (getAttribute($xml_element, $att) != '')
415	{
416	$insert{$att} = getAttribute($xml_element, $att);
417	}
418	}
419	array_push($inserts, $insert);
420	}
421	}
422
423	if (count($inserts) > 0)
424	{
425	$dbfields = array('file','storage_category_id','date_available','tn_ext',
426	'filesize','width','height','date_creation','author',
427	'keywords','name','comment','path');
428	mass_inserts(IMAGES_TABLE, $dbfields, $inserts);
429	$counts{'new_elements'}+= count($inserts);
430
431	// what are the ids of the pictures in the $category_id ?
432	$ids = array();
433
434	$query = '
435	SELECT id
436	FROM '.IMAGES_TABLE.'
437	WHERE storage_category_id = '.$category_id.'
438	;';
439	$result = pwg_query($query);
440	while ($row = mysql_fetch_array($result))
441	{
442	array_push($ids, $row['id']);
443	}
444
445	// recreation of the links between this storage category pictures and
446	// its storage category
447	$query = '
448	DELETE FROM '.IMAGE_CATEGORY_TABLE.'
449	WHERE category_id = '.$category_id.'
450	AND image_id IN ('.implode(',', $ids).')
451	;';
452	pwg_query($query);
453
454	$query = '
455	INSERT INTO '.IMAGE_CATEGORY_TABLE.'
456	(category_id,image_id)
457	VALUES';
458	foreach ($ids as $num => $image_id)
459	{
460	$query.= '
461	';
462	if ($num > 0)
463	{
464	$query.= ',';
465	}
466	$query.= '('.$category_id.','.$image_id.')';
467	}
468	$query.= '
469	;';
470	pwg_query($query);
471	// set a new representative element for this category
472	$query = '
473	SELECT image_id
474	FROM '.IMAGE_CATEGORY_TABLE.'
475	WHERE category_id = '.$category_id.'
476	ORDER BY RAND()
477	LIMIT 0,1
478	;';
479	list($representative) = mysql_fetch_array(pwg_query($query));
480	$query = '
481	UPDATE '.CATEGORIES_TABLE.'
482	SET representative_picture_id = '.$representative.'
483	WHERE id = '.$category_id.'
484	;';
485	pwg_query($query);
486	}
487	}
488	// +-----------------------------------------------------------------------+
489	// \| template init \|
490	// +-----------------------------------------------------------------------+
491	$template->set_filenames(array('remote_site'=>'admin/remote_site.tpl'));
492
493	$template->assign_vars(
494	array(
495	'L_SUBMIT'=>$lang['submit'],
496	'L_REMOTE_SITE_CREATE'=>$lang['remote_site_create'],
497	'L_REMOTE_SITE_GENERATE'=>$lang['remote_site_generate'],
498	'L_REMOTE_SITE_GENERATE_HINT'=>$lang['remote_site_generate_hint'],
499	'L_REMOTE_SITE_UPDATE'=>$lang['remote_site_update'],
500	'L_REMOTE_SITE_UPDATE_HINT'=>$lang['remote_site_update_hint'],
501	'L_REMOTE_SITE_CLEAN'=>$lang['remote_site_clean'],
502	'L_REMOTE_SITE_CLEAN_HINT'=>$lang['remote_site_clean_hint'],
503	'L_REMOTE_SITE_DELETE'=>$lang['remote_site_delete'],
504	'L_REMOTE_SITE_DELETE_HINT'=>$lang['remote_site_delete_hint'],
505	'L_NB_NEW_ELEMENTS'=>$lang['update_nb_new_elements'],
506	'L_NB_NEW_CATEGORIES'=>$lang['update_nb_new_categories'],
507	'L_NB_DEL_ELEMENTS'=>$lang['update_nb_del_elements'],
508	'L_NB_DEL_CATEGORIES'=>$lang['update_nb_del_categories'],
509	'L_REMOTE_SITE_REMOVED_TITLE'=>$lang['remote_site_removed_title'],
510	'L_REMOTE_SITE_REMOVED'=>$lang['remote_site_removed'],
511	'L_REMOTE_SITE_LOCAL_FOUND'=>$lang['remote_site_local_found'],
512	'L_REMOTE_SITE_LOCAL_NEW'=>$lang['remote_site_local_new'],
513	'L_REMOTE_SITE_LOCAL_UPDATE'=>$lang['remote_site_local_update'],
514
515	'F_ACTION'=>add_session_id(PHPWG_ROOT_PATH.'admin.php?page=remote_site')
516	)
517	);
518	// +-----------------------------------------------------------------------+
519	// \| new site creation form \|
520	// +-----------------------------------------------------------------------+
521	$errors = array();
522
523	if (isset($_POST['submit']))
524	{
525	// site must start by http:// or https://
526	if (!preg_match('/^https?:\/\/[~\/\.\w-]+$/', $_POST['galleries_url']))
527	{
528	array_push($errors, $lang['remote_site_uncorrect_url']);
529	}
530	else
531	{
532	$page['galleries_url'] = preg_replace('/[\/]*$/',
533	'',
534	$_POST['galleries_url']);
535	$page['galleries_url'].= '/';
536	// site must not exists
537	$query = '
538	SELECT COUNT(id) AS count
539	FROM '.SITES_TABLE.'
540	WHERE galleries_url = \''.$page['galleries_url'].'\'
541	;';
542	$row = mysql_fetch_array(pwg_query($query));
543	if ($row['count'] > 0)
544	{
545	array_push($errors, $lang['remote_site_already_exists']);
546	}
547	}
548
549	if (count($errors) == 0)
550	{
551	$url = $page['galleries_url'].'create_listing_file.php';
552	$url.= '?action=test';
553	$url.= '&version='.PHPWG_VERSION;
554	if ($lines = @file($url))
555	{
556	$first_line = strip_tags($lines[0]);
557	if (!preg_match('/^PWG-INFO-2:/', $first_line))
558	{
559	array_push($errors, $lang['remote_site_error'].' : '.$first_line);
560	}
561	}
562	else
563	{
564	array_push($errors, $lang['remote_site_file_not_found']);
565	}
566	}
567
568	if (count($errors) == 0)
569	{
570	$query = '
571	INSERT INTO '.SITES_TABLE.'
572	(galleries_url)
573	VALUES
574	(\''.$page['galleries_url'].'\')
575	;';
576	pwg_query($query);
577
578	$template->assign_block_vars(
579	'confirmation',
580	array(
581	'CONTENT'=>$page['galleries_url'].' '.$lang['remote_site_created']
582	));
583	}
584	}
585	// +-----------------------------------------------------------------------+
586	// \| actions on site \|
587	// +-----------------------------------------------------------------------+
588	if (isset($_GET['site']) and is_numeric($_GET['site']))
589	{
590	$page['site'] = $_GET['site'];
591	}
592
593	if (isset($_GET['action']))
594	{
595	if (isset($page['site']))
596	{
597	$query = '
598	SELECT galleries_url
599	FROM '.SITES_TABLE.'
600	WHERE id = '.$page['site'].'
601	;';
602	list($galleries_url) = mysql_fetch_array(pwg_query($query));
603	}
604
605	switch($_GET['action'])
606	{
607	case 'delete' :
608	{
609	delete_site($page['site']);
610
611	$template->assign_block_vars(
612	'confirmation',
613	array(
614	'CONTENT'=>$galleries_url.' '.$lang['remote_site_deleted']
615	));
616
617	break;
618	}
619	case 'generate' :
620	{
621	$title = $galleries_url.' : '.$lang['remote_site_generate'];
622	$template->assign_vars(array('REMOTE_SITE_TITLE'=>$title));
623	remote_output($galleries_url.'create_listing_file.php?action=generate');
624	break;
625	}
626	case 'update' :
627	{
628	$title = $galleries_url.' : '.$lang['remote_site_update'];
629	$template->assign_vars(array('REMOTE_SITE_TITLE'=>$title));
630	update_remote_site($galleries_url.'listing.xml', $page['site']);
631	break;
632	}
633	case 'clean' :
634	{
635	$title = $galleries_url.' : '.$lang['remote_site_clean'];
636	$template->assign_vars(array('REMOTE_SITE_TITLE'=>$title));
637	remote_output($galleries_url.'create_listing_file.php?action=clean');
638	break;
639	}
640	case 'local_update' :
641	{
642	$local_listing = PHPWG_ROOT_PATH.'listing.xml';
643	$xml_content = getXmlCode($local_listing);
644	$url = getAttribute(getChild($xml_content, 'informations'), 'url');
645
646	// is the site already existing ?
647	$query = '
648	SELECT id
649	FROM '.SITES_TABLE.'
650	WHERE galleries_url = \''.addslashes($url).'\'
651	;';
652	$result = pwg_query($query);
653	if (mysql_num_rows($result) == 0)
654	{
655	// we have to register this site in the database
656	$query = '
657	INSERT INTO '.SITES_TABLE.'
658	(galleries_url)
659	VALUES
660	(\''.$url.'\')
661	;';
662	pwg_query($query);
663	$site_id = mysql_insert_id();
664	}
665	else
666	{
667	// we get the already registered id
668	$row = mysql_fetch_array($result);
669	$site_id = $row['id'];
670	}
671
672	$title = $url.' : '.$lang['remote_site_local_update'];
673	$template->assign_vars(array('REMOTE_SITE_TITLE'=>$title));
674	update_remote_site($local_listing, $site_id);
675	break;
676	}
677	}
678	}
679	else
680	{
681	// we search a "local" listing.xml file
682	$local_listing = PHPWG_ROOT_PATH.'listing.xml';
683	if (is_file($local_listing))
684	{
685	$xml_content = getXmlCode($local_listing);
686	$url = getAttribute(getChild($xml_content, 'informations'), 'url');
687
688	$base_url = PHPWG_ROOT_PATH.'admin.php?page=remote_site&action=';
689
690	$template->assign_block_vars(
691	'local',
692	array(
693	'URL' => $url,
694	'U_UPDATE' => add_session_id($base_url.'local_update')
695	)
696	);
697
698	// is the site already existing ?
699	$query = '
700	SELECT COUNT(*)
701	FROM '.SITES_TABLE.'
702	WHERE galleries_url = \''.addslashes($url).'\'
703	;';
704	list($count) = mysql_fetch_array(pwg_query($query));
705	if ($count == 0)
706	{
707	$template->assign_block_vars('local.new_site', array());
708	}
709	}
710	}
711	// +-----------------------------------------------------------------------+
712	// \| remote sites list \|
713	// +-----------------------------------------------------------------------+
714
715	// site 1 is the local site, should not be taken into account
716	$query = '
717	SELECT id, galleries_url
718	FROM '.SITES_TABLE.'
719	WHERE id != 1
720	;';
721	$result = pwg_query($query);
722	while ($row = mysql_fetch_array($result))
723	{
724	$base_url = PHPWG_ROOT_PATH.'admin.php';
725	$base_url.= '?page=remote_site';
726	$base_url.= '&site='.$row['id'];
727	$base_url.= '&action=';
728
729	$template->assign_block_vars(
730	'site',
731	array(
732	'NAME' => $row['galleries_url'],
733	'U_GENERATE' => add_session_id($base_url.'generate'),
734	'U_UPDATE' => add_session_id($base_url.'update'),
735	'U_CLEAN' => add_session_id($base_url.'clean'),
736	'U_DELETE' => add_session_id($base_url.'delete')
737	)
738	);
739	}
740	// +-----------------------------------------------------------------------+
741	// \| errors display \|
742	// +-----------------------------------------------------------------------+
743	if (count($errors) != 0)
744	{
745	$template->assign_block_vars('errors',array());
746	foreach ($errors as $error)
747	{
748	$template->assign_block_vars('errors.error',array('ERROR'=>$error));
749	}
750	}
751	// +-----------------------------------------------------------------------+
752	// \| sending html code \|
753	// +-----------------------------------------------------------------------+
754	$template->assign_var_from_handle('ADMIN_CONTENT', 'remote_site');
755	?>

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