Context Navigation

source: extensions/pbase2piwigo/include/functions.inc.php @ 22091

Last change on this file since 22091 was 21291, checked in by mistic100, 12 years ago
safe_mode
File size: 11.5 KB

Line
1	<?php
2	if (!defined('PBASE_PATH')) die('Hacking attempt!');
3
4	/**
5	* get the content of web-page, with cache management
6	* @param: string url
7	* @return: string
8	*/
9	function get_file_cached($url)
10	{
11	// html files are cached 10000 seconds
12	$cache_id_prefix = str_replace('http://www.pbase.com/', null, $url);
13	$cache_id_prefix = preg_replace('#([^a-z0-9-_]+)#i', null, $cache_id_prefix);
14	$cache_id = $cache_id_prefix.'-'.substr(time(), 0, -4);
15
16	if (!file_exists(PBASE_FS_CACHE.$cache_id))
17	{
18	$files = glob(PBASE_FS_CACHE.$cache_id_prefix.'-*');
19	foreach ($files as $file) unlink($file);
20
21	if (($result = download_remote_file($url, PBASE_FS_CACHE.$cache_id)) !== true)
22	{
23	return $result;
24	}
25	}
26
27	$html = file_get_contents(PBASE_FS_CACHE.$cache_id);
28
29	return utf8_encode($html);
30	}
31
32	/**
33	* helper to navigate throught the tree
34	* @param: &array tree
35	* @param: string path
36	* @return: reference to a branch of the tree
37	*/
38	function &get_current_cat(&$tree, $path)
39	{
40	if (empty($path)) return $tree;
41
42	$path = ltrim($path, '/');
43	$path = explode('/', $path);
44	$current = &$tree[ $path[0] ];
45	array_shift($path);
46
47	foreach ($path as $folder)
48	{
49	$current = &$current['categories'][$folder];
50	}
51
52	return $current;
53	}
54
55	/**
56	* check if give account (http://pbase.com/login/root) exists
57	* @param: string url
58	* @return: bool
59	*/
60	function check_account($url)
61	{
62	$html = get_file_cached($url);
63	return !(bool)preg_match('#<h2>Unknown Account</h2>#i', $html);
64	}
65
66	/**
67	* parse a category page
68	* @param: string category url
69	* @param: bool parse only sub-categories
70	* @param: bool parse only one level
71	* @return: array category
72	*/
73	function parse_category($url, $path, $cats_only=false, $one_level=false)
74	{
75	$url = str_replace('&page=all', null, $url);
76
77	$current = array(
78	'url' => $url,
79	'path' => null,
80	'id' => null,
81	);
82
83	// id
84	$temp = parse_url($url);
85	$temp = explode('/', $temp['path']);
86	$current['id'] = $temp[ count($temp)-1 ];
87	$current['path'] = $path.'/'.$current['id'];
88
89	if ($one_level === 'stop')
90	{
91	return $current;
92	}
93
94	$current = array_merge($current, array(
95	'title' => null,
96	'description' => null,
97	'pictures' => array(),
98	'categories' => array(),
99	'nb_pictures' => 0,
100	'nb_categories' => 0,
101	));
102
103
104	$url.= '&page=all'; // seriously... (should be ? not &)
105
106
107	$html = get_file_cached($url);
108	if ($html == 'file_error')
109	{
110	return $current;
111	}
112
113	preg_match('#<body>(.*)</body>#is', $html, $matches);
114	$body = $matches[1];
115
116	// content
117	// if (preg_match('#<CENTER>(.*)</CENTER>#is', $body, $matches) === 0) return 'null1';
118	if (preg_match_all('#<A HREF="([^">]*)" class="thumbnail">#i', $body, $matches) === 0) return $current;
119	$links = $matches[1];
120
121	// title
122	if (preg_match('#<h2>(.*?)</h2>#i', $body, $matches))
123	{
124	$current['title'] = trim($matches[1]);
125	}
126	else
127	{
128	$current['title'] = $current['id'];
129	}
130
131	// description
132	if (preg_match('#<!-- BEGIN user desc -->(.*?)<!-- END user desc -->#s', $body, $matches))
133	{
134	$current['description'] = trim($matches[1]);
135	}
136
137	// sub-cats and pictures
138	foreach ($links as $link)
139	{
140	if (strpos($link, '/image/') !== false)
141	{
142	if (($image = parse_image($link, $cats_only)) !== null)
143	{
144	$current['pictures'][ $image['id'] ] = $image;
145	}
146	$current['nb_pictures']++;
147	}
148	else
149	{
150	$next_level = ($one_level === true) ? 'stop' : false;
151	if (($category = parse_category($link, $current['path'], $cats_only, $next_level)) !== null)
152	{
153	$current['categories'][ $category['id'] ] = $category;
154	}
155	$current['nb_categories']++;
156	}
157	}
158
159	return $current;
160	}
161
162	/**
163	* parse a picture page
164	* @param: string picture url
165	* @param: bool return only url and id
166	* @return: array picture
167	*/
168	function parse_image($url, $light=false)
169	{
170	$url = preg_replace('#/(small\|medium\|large\|original)$#', null, $url);
171
172	$current = array(
173	'url' => $url,
174	'id' => null,
175	);
176
177	// id
178	$temp = parse_url($url);
179	$temp = explode('/', $temp['path']);
180	$current['id'] = $temp[ count($temp)-1 ];
181
182	if ($light)
183	{
184	return $current;
185	}
186
187	$current = array_merge($current, array(
188	'title' => null,
189	'path' => null,
190	'description' => null,
191	'date' => null,
192	'author' => null,
193	'keywords' => array(),
194	));
195
196	$url.= '/original';
197
198
199	$html = get_file_cached($url);
200	if ($html == 'file_error')
201	{
202	return $current;
203	}
204
205	preg_match('#<body>(.*)</body>#is', $html, $matches);
206	$body = $matches[1];
207
208	// path
209	if (preg_match('#<IMG ([^>])class="display" src="([^">])"#i', $body, $matches) ===0) return null;
210	$current['path'] = $matches[2];
211
212	// title
213	preg_match('#<span class="title">(.*?)</span>#i', $body, $matches);
214	if (!empty($matches[1]))
215	{
216	$current['title'] = trim($matches[1]);
217	$current['title'] = get_filename_wo_extension($current['title']);
218	}
219	else
220	{
221	$current['title'] = $current['id'];
222	}
223
224	// description
225	if (preg_match('#<p class="caption">(.*?)</p>#is', $body, $matches))
226	{
227	$current['description'] = trim($matches[1]);
228	}
229
230	// date
231	if (preg_match('#<span class=date>(.*?)</span>#i', $body, $matches))
232	{
233	$current['date'] = trim($matches[1]);
234	}
235
236	// author
237	if (preg_match('#<span class=artist>(.*?)</span>#i', $body, $matches))
238	{
239	$current['author'] = trim($matches[1]);
240	}
241
242
243	preg_match('#<head>(.*)</head>#is', $html, $matches);
244	$head = $matches[1];
245
246	// keywords
247	if (preg_match('#<meta name="keywords" content="([^">]*)">#i', $head, $matches))
248	{
249	$words = explode(',', $matches[1]);
250	foreach ($words as $word)
251	{
252	if (!empty($word)) $current['keywords'][] = trim($word);
253	}
254	}
255
256	return $current;
257	}
258
259	/**
260	* print categories tree (list or select)
261	* @param: array tree
262	* @param: int level
263	* @param: string tree type (list\|select)
264	* @return: string
265	*/
266	function print_tree(&$tree, $level=0, $type='list')
267	{
268	$out = '';
269
270	if ($type == 'list')
271	{
272	$out.= '<ul>';
273	foreach ($tree as $item)
274	{
275	$out.= '<li>';
276	$out.= '<a href="'.$item['url'].'">'.$item['title'].'</a> ['.$item['nb_pictures'].']';
277	if (!empty($item['categories']))
278	$out.= print_tree($item['categories'], $level+1, 'list');
279	$out.= '</li>';
280	}
281	$out.= '</ul>';
282	}
283	else if ($type == 'select')
284	{
285	$i=0;
286	foreach ($tree as $item)
287	{
288	$out.= '<option value="'.$item['path'].'"';
289	if ($level==0 and $i==0) $out.= ' selected="selected"';
290	$out.= '>';
291
292	$out.= str_repeat(' ', $level*4);
293	$out.= '- '.$item['title'].' ['.$item['nb_pictures'].']';
294
295	$out.= '</option>';
296
297	if (!empty($item['categories']))
298	$out.= print_tree($item['categories'], $level+1, 'select');
299
300	$i++;
301	}
302	}
303
304	return $out;
305	}
306
307	/**
308	* test if a download method is available
309	* @return: bool
310	*/
311	if (!function_exists('test_remote_download'))
312	{
313	function test_remote_download()
314	{
315	return function_exists('curl_init') \|\| ini_get('allow_url_fopen');
316	}
317	}
318
319	/**
320	* download a remote file
321	* - needs cURL or allow_url_fopen
322	* - take care of SSL urls
323	*
324	* @param: string source url
325	* @param: mixed destination file (if true, file content is returned)
326	*/
327	if (!function_exists('download_remote_file'))
328	{
329	function download_remote_file($src, $dest)
330	{
331	if (empty($src))
332	{
333	return false;
334	}
335
336	$return = ($dest === true) ? true : false;
337
338	/* curl */
339	if (function_exists('curl_init'))
340	{
341	if (!$return)
342	{
343	$newf = fopen($dest, "wb");
344	}
345	$ch = curl_init();
346
347	curl_setopt($ch, CURLOPT_URL, $src);
348	curl_setopt($ch, CURLOPT_HEADER, false);
349	curl_setopt($ch, CURLOPT_HTTPHEADER, array("Accept-language: en"));
350	curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)');
351	curl_setopt($ch, CURLOPT_TIMEOUT, 30);
352	if (!ini_get('safe_mode'))
353	{
354	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
355	curl_setopt($ch, CURLOPT_MAXREDIRS, 1);
356	}
357	if (strpos($src, 'https://') !== false)
358	{
359	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
360	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
361	}
362	if (!$return)
363	{
364	curl_setopt($ch, CURLOPT_FILE, $newf);
365	}
366	else
367	{
368	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
369	}
370
371	$out = curl_exec($ch);
372	curl_close($ch);
373
374	if ($out === false)
375	{
376	return 'file_error';
377	}
378	else if (!$return)
379	{
380	fclose($newf);
381	return true;
382	}
383	else
384	{
385	return $out;
386	}
387	}
388	/* file get content */
389	else if (ini_get('allow_url_fopen'))
390	{
391	if (strpos($src, 'https://') !== false and !extension_loaded('openssl'))
392	{
393	return false;
394	}
395
396	$opts = array(
397	'http' => array(
398	'method' => "GET",
399	'user_agent' => 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)',
400	'header' => "Accept-language: en",
401	)
402	);
403
404	$context = stream_context_create($opts);
405
406	if (($file = file_get_contents($src, false, $context)) === false)
407	{
408	return 'file_error';
409	}
410
411	if (!$return)
412	{
413	file_put_contents($dest, $file);
414	return true;
415	}
416	else
417	{
418	return $file;
419	}
420	}
421
422	return false;
423	}
424	}
425
426	/**
427	* count pictures and cats in the selected cat
428	* @param: &array tree
429	* @param: string $path
430	* @param: &int nb pictures
431	* @param: &int nb categories
432	* @param: bool recursive
433	* @return: void
434	*/
435	function count_pictures_cats(&$tree, $path, &$nb_pictures, &$nb_categories, $recursive=true)
436	{
437	$current = &get_current_cat($tree, $path);
438	$nb_pictures+= $current['nb_pictures'];
439	$nb_categories++;
440
441	if ( $recursive and !empty($current['categories']) )
442	{
443	foreach ($current['categories'] as $cat)
444	{
445	count_pictures_cats($tree, $cat['path'], $nb_pictures, $nb_categories, $recursive);
446	}
447	}
448	}
449
450	/**
451	* extract unique values of the specified key in a two dimensional array
452	* @param: array
453	* @param: mixed key name
454	* @return: array
455	*/
456	if (!function_exists('array_unique_deep'))
457	{
458	function array_unique_deep(&$array, $key)
459	{
460	$values = array();
461	foreach ($array as $k1 => $row)
462	{
463	foreach ($row as $k2 => $v)
464	{
465	if ($k2 == $key)
466	{
467	$values[ $k1 ] = $v;
468	continue;
469	}
470	}
471	}
472	return array_unique($values);
473	}
474	}
475
476	/**
477	* search a string in array values
478	* // http://www.strangeplanet.fr/blog/dev/php-une-fonction-pour-rechercher-dans-un-tableau
479	* @param string needle
480	* @param array haystack
481	* @param bool return all instances
482	* @param bool search in PCRE mode
483	* @return key or array of keys
484	*/
485	if (!function_exists('array_pos'))
486	{
487	function array_pos($needle, &$haystack, $match_all=false, $preg_mode=false)
488	{
489	if ($match_all) $matches = array();
490
491	foreach ($haystack as $i => $row)
492	{
493	if (!is_array($row))
494	{
495	if (!$preg_mode)
496	{
497	if (strpos($row, $needle) !== false)
498	{
499	if (!$match_all) return $i;
500	else array_push($matches, $i);
501	}
502	}
503	else
504	{
505	if (preg_match($needle, $row) === 1)
506	{
507	if (!$match_all) return $i;
508	else array_push($matches, $i);
509	}
510	}
511	}
512	}
513
514	if ( !$match_all or !count($matches) ) return false;
515	return $matches;
516	}
517	}
518
519	?>

Note: See TracBrowser for help on using the repository browser.

Download in other formats: