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1 <?php
2 require_once("include/oembed.php");
3 require_once('include/event.php');
4 require_once('include/map.php');
5 require_once('mod/proxy.php');
6 require_once('include/Contact.php');
7 require_once('include/plaintext.php');
8
9 function bb_PictureCacheExt($matches) {
10         if (strpos($matches[3], "data:image/") === 0)
11                 return ($matches[0]);
12
13         $matches[3] = proxy_url($matches[3]);
14         return "[img=".$matches[1]."x".$matches[2]."]".$matches[3]."[/img]";
15 }
16
17 function bb_PictureCache($matches) {
18         if (strpos($matches[1], "data:image/") === 0)
19                 return ($matches[0]);
20
21         $matches[1] = proxy_url($matches[1]);
22         return "[img]".$matches[1]."[/img]";
23 }
24
25 function bb_map_coords($match) {
26         // the extra space in the following line is intentional
27         return str_replace($match[0],'<div class="map"  >' . generate_map(str_replace('/',' ',$match[1])) . '</div>', $match[0]);
28 }
29 function bb_map_location($match) {
30         // the extra space in the following line is intentional
31         return str_replace($match[0],'<div class="map"  >' . generate_named_map($match[1]) . '</div>', $match[0]);
32 }
33
34 function bb_attachment($Text, $simplehtml = false, $tryoembed = true) {
35
36         $data = get_attachment_data($Text);
37
38         if (!$data)
39                 return $Text;
40
41         if (isset($data["title"])) {
42                 $data["title"] = strip_tags($data["title"]);
43                 $data["title"] = str_replace(array("http://", "https://"), "", $data["title"]);
44         }
45
46         if (((strpos($data["text"], "[img=") !== false) OR (strpos($data["text"], "[img]") !== false)) AND ($data["image"] != "")) {
47                 $data["preview"] = $data["image"];
48                 $data["image"] = "";
49         }
50
51         if ($simplehtml == 7) {
52                 $title2 = $data["title"];
53
54                 $test1 = trim(html_entity_decode($data["text"],ENT_QUOTES,'UTF-8'));
55                 $test2 = trim(html_entity_decode($data["title"],ENT_QUOTES,'UTF-8'));
56
57                 // If the link description is similar to the text above then don't add the link description
58                 if (($data["title"] != "") AND ((strpos($test1,$test2) !== false) OR
59                         (similar_text($test1,$test2) / strlen($data["title"])) > 0.9))
60                         $title2 = $data["url"];
61                 $text = sprintf('<a href="%s" title="%s" class="attachment thumbnail" rel="nofollow external">%s</a><br />',
62                                 $data["url"], $data["title"], $title2);
63         } elseif (($simplehtml != 4) AND ($simplehtml != 0))
64                 $text = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
65         else {
66                 $text = sprintf('<span class="type-%s">', $data["type"]);
67
68                 $bookmark = array(sprintf('[bookmark=%s]%s[/bookmark]', $data["url"], $data["title"]), $data["url"], $data["title"]);
69                 if ($tryoembed)
70                         $oembed = tryoembed($bookmark);
71                 else
72                         $oembed = $bookmark[0];
73
74                 if (strstr(strtolower($oembed), "<iframe "))
75                         $text = $oembed;
76                 else {
77                         if (($data["image"] != "") AND !strstr(strtolower($oembed), "<img "))
78                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
79                         elseif (($data["preview"] != "") AND !strstr(strtolower($oembed), "<img "))
80                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
81
82                         if (($data["type"] == "photo") AND ($data["url"] != "") AND ($data["image"] != ""))
83                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a>', $data["url"], proxy_url($data["image"]), $data["title"]);
84                         else
85                                 $text .= $oembed;
86
87                         if (trim($data["description"]) != "")
88                                 $text .= sprintf('<blockquote>%s</blockquote></span>', trim($data["description"]));
89                 }
90         }
91         return $data["text"].$text.$data["after"];
92 }
93
94 function bb_remove_share_information($Text, $plaintext = false, $nolink = false) {
95
96         $data = get_attachment_data($Text);
97
98         if (!$data)
99                 return $Text;
100
101         if ($nolink)
102                 return $data["text"].$data["after"];
103
104         $title = htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false);
105         $text = htmlentities($data["text"], ENT_QUOTES, 'UTF-8', false);
106         if ($plaintext OR (($title != "") AND strstr($text, $title)))
107                 $data["title"] = $data["url"];
108         elseif (($text != "") AND strstr($title, $text)) {
109                 $data["text"] = $data["title"];
110                 $data["title"] = $data["url"];
111         }
112
113         if (($data["text"] == "") AND ($data["title"] != "") AND ($data["url"] == ""))
114                 return $data["title"].$data["after"];
115
116         // If the link already is included in the post, don't add it again
117         if (($data["url"] != "") AND strpos($data["text"], $data["url"]))
118                 return $data["text"].$data["after"];
119
120         $text = $data["text"];
121
122         if (($data["url"] != "") AND ($data["title"] != ""))
123                 $text .= "\n[url=".$data["url"]."]".$data["title"]."[/url]";
124         elseif (($data["url"] != ""))
125                 $text .= "\n".$data["url"];
126
127         return $text."\n".$data["after"];
128 }
129
130 function bb_cleanstyle($st) {
131   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
132 }
133
134 function bb_cleanclass($st) {
135   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
136 }
137
138 function cleancss($input) {
139
140         $cleaned = "";
141
142         $input = strtolower($input);
143
144         for ($i = 0; $i < strlen($input); $i++) {
145                 $char = substr($input, $i, 1);
146
147                 if (($char >= "a") and ($char <= "z"))
148                         $cleaned .= $char;
149
150                 if (!(strpos(" #;:0123456789-_", $char) === false))
151                         $cleaned .= $char;
152         }
153
154         return($cleaned);
155 }
156
157 function stripcode_br_cb($s) {
158         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
159 }
160
161 function bb_onelinecode_cb($match) {
162         if (strpos($match[1],"<br>")===false){
163                 return "<key>".$match[1]."</key>";
164         }
165         return "<code>".$match[1]."</code>";
166 }
167
168 function tryoembed($match){
169         $url = $match[1];
170
171         // Always embed the SSL version
172         $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
173                                 array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
174
175
176         $o = oembed_fetch_url($url);
177
178         if (!is_object($o))
179                 return $match[0];
180
181         if (isset($match[2]))
182                 $o->title = $match[2];
183
184         if ($o->type=="error") return $match[0];
185
186         $html = oembed_format_object($o);
187         return $html;
188
189 }
190
191 // [noparse][i]italic[/i][/noparse] turns into
192 // [noparse][ i ]italic[ /i ][/noparse],
193 // to hide them from parser.
194
195 function bb_spacefy($st) {
196   $whole_match = $st[0];
197   $captured = $st[1];
198   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
199   $new_str = str_replace($captured, $spacefied, $whole_match);
200   return $new_str;
201 }
202
203 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
204 // now turns back and the [noparse] tags are trimed
205 // returning [i]italic[/i]
206
207 function bb_unspacefy_and_trim($st) {
208   $whole_match = $st[0];
209   $captured = $st[1];
210   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
211   return $unspacefied;
212 }
213
214 function bb_find_open_close($s, $open, $close, $occurance = 1) {
215
216         if($occurance < 1)
217                 $occurance = 1;
218
219         $start_pos = -1;
220         for($i = 1; $i <= $occurance; $i++) {
221                 if( $start_pos !== false)
222                         $start_pos = strpos($s, $open, $start_pos + 1);
223         }
224
225         if( $start_pos === false)
226                 return false;
227
228         $end_pos = strpos($s, $close, $start_pos);
229
230         if( $end_pos === false)
231                 return false;
232
233         $res = array( 'start' => $start_pos, 'end' => $end_pos );
234
235         return $res;
236 }
237
238 function get_bb_tag_pos($s, $name, $occurance = 1) {
239
240         if($occurance < 1)
241                 $occurance = 1;
242
243         $start_open = -1;
244         for($i = 1; $i <= $occurance; $i++) {
245                 if( $start_open !== false)
246                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
247         }
248
249         if( $start_open === false)
250                 return false;
251
252         $start_equal = strpos($s, '=', $start_open);
253         $start_close = strpos($s, ']', $start_open);
254
255         if( $start_close === false)
256                 return false;
257
258         $start_close++;
259
260         $end_open = strpos($s, '[/' . $name . ']', $start_close);
261
262         if( $end_open === false)
263                 return false;
264
265         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
266                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
267         if( $start_equal !== false)
268                 $res['start']['equal'] = $start_equal + 1;
269
270         return $res;
271 }
272
273 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
274
275         $string = $s;
276
277         $occurance = 1;
278         $pos = get_bb_tag_pos($string, $name, $occurance);
279         while($pos !== false && $occurance < 1000) {
280
281                 $start = substr($string, 0, $pos['start']['open']);
282                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
283                 $end = substr($string, $pos['end']['close']);
284                 if($end === false)
285                         $end = '';
286
287                 $subject = preg_replace($pattern, $replace, $subject);
288                 $string = $start . $subject . $end;
289
290                 $occurance++;
291                 $pos = get_bb_tag_pos($string, $name, $occurance);
292         }
293
294         return $string;
295 }
296
297 if(! function_exists('bb_extract_images')) {
298 function bb_extract_images($body) {
299
300         $saved_image = array();
301         $orig_body = $body;
302         $new_body = '';
303
304         $cnt = 0;
305         $img_start = strpos($orig_body, '[img');
306         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
307         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
308         while(($img_st_close !== false) && ($img_end !== false)) {
309
310                 $img_st_close++; // make it point to AFTER the closing bracket
311                 $img_end += $img_start;
312
313                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
314                         // This is an embedded image
315
316                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
317                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
318
319                         $cnt++;
320                 }
321                 else
322                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
323
324                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
325
326                 if($orig_body === false) // in case the body ends on a closing image tag
327                         $orig_body = '';
328
329                 $img_start = strpos($orig_body, '[img');
330                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
331                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
332         }
333
334         $new_body = $new_body . $orig_body;
335
336         return array('body' => $new_body, 'images' => $saved_image);
337 }}
338
339 if(! function_exists('bb_replace_images')) {
340 function bb_replace_images($body, $images) {
341
342         $newbody = $body;
343
344         $cnt = 0;
345         foreach($images as $image) {
346                 // We're depending on the property of 'foreach' (specified on the PHP website) that
347                 // it loops over the array starting from the first element and going sequentially
348                 // to the last element
349                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . t('Image/photo') . '" />', $newbody);
350                 $cnt++;
351         }
352
353         return $newbody;
354 }}
355
356 function bb_ShareAttributes($share, $simplehtml) {
357         $attributes = $share[2];
358
359         $author = "";
360         preg_match("/author='(.*?)'/ism", $attributes, $matches);
361         if ($matches[1] != "")
362                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
363
364         preg_match('/author="(.*?)"/ism', $attributes, $matches);
365         if ($matches[1] != "")
366                 $author = $matches[1];
367
368         $profile = "";
369         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
370         if ($matches[1] != "")
371                 $profile = $matches[1];
372
373         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
374         if ($matches[1] != "")
375                 $profile = $matches[1];
376
377         $avatar = "";
378         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
379         if ($matches[1] != "")
380                 $avatar = $matches[1];
381
382         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
383         if ($matches[1] != "")
384                 $avatar = $matches[1];
385
386         $link = "";
387         preg_match("/link='(.*?)'/ism", $attributes, $matches);
388         if ($matches[1] != "")
389                 $link = $matches[1];
390
391         preg_match('/link="(.*?)"/ism', $attributes, $matches);
392         if ($matches[1] != "")
393                 $link = $matches[1];
394
395         $posted = "";
396
397         $itemcache = get_itemcachepath();
398
399         // relative dates only make sense when they aren't cached
400         if ($itemcache == "") {
401                 preg_match("/posted='(.*?)'/ism", $attributes, $matches);
402                 if ($matches[1] != "")
403                         $posted = $matches[1];
404
405                 preg_match('/posted="(.*?)"/ism', $attributes, $matches);
406                 if ($matches[1] != "")
407                         $posted = $matches[1];
408
409                 $reldate = (($posted) ? " " . relative_date($posted) : '');
410         }
411
412         $data = get_contact_details_by_url($profile);
413
414         if (isset($data["name"]) AND isset($data["addr"]))
415                 $userid_compact = $data["name"]." (".$data["addr"].")";
416         else
417                 $userid_compact = GetProfileUsername($profile,$author, true);
418
419         if (isset($data["addr"]))
420                 $userid = $data["addr"];
421         else
422                 $userid = GetProfileUsername($profile,$author, false);
423
424         if (isset($data["name"]))
425                 $author = $data["name"];
426
427         if (isset($data["photo"]))
428                 $avatar = $data["photo"];
429
430         $preshare = trim($share[1]);
431
432         if ($preshare != "")
433                 $preshare .= "<br /><br />";
434
435         switch ($simplehtml) {
436                 case 1:
437                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$share[3]."«";
438                         break;
439                 case 2:
440                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
441                         break;
442                 case 3: // Diaspora
443                         $headline .= '<b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b><br />';
444
445                         $text = trim($share[1]);
446
447                         if ($text != "")
448                                 $text .= "<hr />";
449
450                         if (substr(normalise_link($link), 0, 19) != "http://twitter.com/") {
451                                 $text .= $headline.'<blockquote>'.trim($share[3])."</blockquote><br />";
452
453                                 if ($link != "")
454                                         $text .= '<br /><a href="'.$link.'">[l]</a>';
455                         } else
456                                 $text .= '<br /><a href="'.$link.'">'.$link.'</a>';
457
458                         break;
459                 case 4:
460                         $headline = '<div class="shared_header">';
461                         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
462                         $headline .= sprintf(t('<a href="%1$s" target="_blank">%2$s</a> %3$s'), $link, $userid, $posted);
463                         $headline .= ":</b></span></div>";
464
465                         $text = trim($share[1]);
466
467                         if ($text != "")
468                                 $text .= "<hr />";
469
470                         $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
471
472                         break;
473                 case 5:
474                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
475                         break;
476                 case 6: // app.net
477                         $text = $preshare."&gt;&gt; @".$userid_compact.": <br />".$share[3];
478                         break;
479                 case 7: // statusnet/GNU Social
480                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8')." @".$userid_compact.": ".$share[3];
481                         break;
482                 case 8: // twitter
483                         $text = $preshare."RT @".$userid_compact.": ".$share[3];
484                         break;
485                 case 9: // Google+/Facebook
486                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
487
488                         if ($link != "")
489                                 $text .= "<br /><br />".$link;
490                         break;
491                 default:
492                         $headline = trim($share[1]).'<div class="shared_header">';
493                         if ($avatar != "")
494                                 $headline .= '<img src="'.proxy_url($avatar, false, PROXY_SIZE_MICRO).'" height="32" width="32" >';
495
496                         $headline .= sprintf(t('<span><a href="%s" target="_blank">%s</a> wrote the following <a href="%s" target="_blank">post</a>'.$reldate.':</span>'), $profile, $author, $link);
497                         $headline .= "</div>";
498                         $text = $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote>";
499                         break;
500         }
501         return($text);
502 }
503
504 function GetProfileUsername($profile, $username, $compact = false, $getnetwork = false) {
505
506         $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
507         if ($twitter != $profile) {
508                 if ($getnetwork)
509                         return(NETWORK_TWITTER);
510                 elseif ($compact)
511                         return($twitter);
512                 else
513                         return($username." (".$twitter.")");
514         }
515
516         $appnet = preg_replace("=https?://alpha.app.net/(.*)=ism", "$1@alpha.app.net", $profile);
517         if ($appnet != $profile) {
518                 if ($getnetwork)
519                         return(NETWORK_APPNET);
520                 elseif ($compact)
521                         return($appnet);
522                 else
523                         return($username." (".$appnet.")");
524         }
525
526         $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
527         if ($gplus != $profile) {
528                 if ($getnetwork)
529                         return(NETWORK_GPLUS);
530                 elseif ($compact)
531                         return($gplususername." (".$username.")");
532                 else
533                         return($username." (".$gplus.")");
534         }
535
536         $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
537         if ($friendica != $profile) {
538                 if ($getnetwork)
539                         return(NETWORK_DFRN);
540                 elseif ($compact)
541                         return($friendica);
542                 else
543                         return($username." (".$friendica.")");
544         }
545
546         $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
547         if ($diaspora != $profile) {
548                 if ($getnetwork)
549                         return(NETWORK_DIASPORA);
550                 elseif ($compact)
551                         return($diaspora);
552                 else
553                         return($username." (".$diaspora.")");
554         }
555
556         $red = preg_replace("=https?://(.*)/channel/(.*)=ism", "$2@$1", $profile);
557         if ($red != $profile) {
558                 if ($getnetwork)
559                         // red is identified as Diaspora - friendica can't connect directly to it
560                         return(NETWORK_DIASPORA);
561                 elseif ($compact)
562                         return($red);
563                 else
564                         return($username." (".$red.")");
565         }
566
567         $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
568         if ($StatusnetHost != $profile) {
569                 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
570                 if ($StatusnetUser != $profile) {
571                         $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
572                         $user = json_decode($UserData);
573                         if ($user) {
574                                 if ($getnetwork)
575                                         return(NETWORK_STATUSNET);
576                                 elseif ($compact)
577                                         return($user->screen_name."@".$StatusnetHost);
578                                 else
579                                         return($username." (".$user->screen_name."@".$StatusnetHost.")");
580                         }
581                 }
582         }
583
584         // pumpio (http://host.name/user)
585         $rest = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$3", $profile);
586         if ($rest == "") {
587                 $pumpio = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$2@$1", $profile);
588                 if ($pumpio != $profile) {
589                         if ($getnetwork)
590                                 return(NETWORK_PUMPIO);
591                         elseif ($compact)
592                                 return($pumpio);
593                         else
594                                 return($username." (".$pumpio.")");
595                 }
596         }
597
598         return($username);
599 }
600
601 function bb_DiasporaLinks($match) {
602         $a = get_app();
603
604         return "[url=".$a->get_baseurl()."/display/".$match[1]."]".$match[2]."[/url]";
605 }
606
607 function bb_RemovePictureLinks($match) {
608         $text = Cache::get($match[1]);
609
610         if(is_null($text)){
611                 $a = get_app();
612
613                 $stamp1 = microtime(true);
614
615                 $ch = @curl_init($match[1]);
616                 @curl_setopt($ch, CURLOPT_NOBODY, true);
617                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
618                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
619                 @curl_exec($ch);
620                 $curl_info = @curl_getinfo($ch);
621
622                 $a->save_timestamp($stamp1, "network");
623
624                 if (substr($curl_info["content_type"], 0, 6) == "image/")
625                         $text = "[url=".$match[1]."]".$match[1]."[/url]";
626                 else {
627                         $text = "[url=".$match[2]."]".$match[2]."[/url]";
628
629                         // if its not a picture then look if its a page that contains a picture link
630                         require_once("include/network.php");
631
632                         $body = fetch_url($match[1]);
633
634                         $doc = new DOMDocument();
635                         @$doc->loadHTML($body);
636                         $xpath = new DomXPath($doc);
637                         $list = $xpath->query("//meta[@name]");
638                         foreach ($list as $node) {
639                                 $attr = array();
640
641                                 if ($node->attributes->length)
642                                         foreach ($node->attributes as $attribute)
643                                                 $attr[$attribute->name] = $attribute->value;
644
645                                 if (strtolower($attr["name"]) == "twitter:image")
646                                         $text = "[url=".$attr["content"]."]".$attr["content"]."[/url]";
647                         }
648                 }
649                 Cache::set($match[1],$text);
650         }
651         return($text);
652 }
653
654 function bb_expand_links($match) {
655         if (($match[3] == "") OR ($match[2] == $match[3]) OR stristr($match[2], $match[3]))
656                 return ($match[1]."[url]".$match[2]."[/url]");
657         else
658                 return ($match[1].$match[3]." [url]".$match[2]."[/url]");
659 }
660
661 function bb_CleanPictureLinksSub($match) {
662         $text = Cache::get($match[1]);
663
664         if(is_null($text)){
665                 $a = get_app();
666
667                 $stamp1 = microtime(true);
668
669                 $ch = @curl_init($match[1]);
670                 @curl_setopt($ch, CURLOPT_NOBODY, true);
671                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
672                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
673                 @curl_exec($ch);
674                 $curl_info = @curl_getinfo($ch);
675
676                 $a->save_timestamp($stamp1, "network");
677
678                 // if its a link to a picture then embed this picture
679                 if (substr($curl_info["content_type"], 0, 6) == "image/")
680                         $text = "[img]".$match[1]."[/img]";
681                 else {
682                         $text = "[img]".$match[2]."[/img]";
683
684                         // if its not a picture then look if its a page that contains a picture link
685                         require_once("include/network.php");
686
687                         $body = fetch_url($match[1]);
688
689                         $doc = new DOMDocument();
690                         @$doc->loadHTML($body);
691                         $xpath = new DomXPath($doc);
692                         $list = $xpath->query("//meta[@name]");
693                         foreach ($list as $node) {
694                                 $attr = array();
695
696                                 if ($node->attributes->length)
697                                         foreach ($node->attributes as $attribute)
698                                                 $attr[$attribute->name] = $attribute->value;
699
700                                 if (strtolower($attr["name"]) == "twitter:image")
701                                         $text = "[img]".$attr["content"]."[/img]";
702                         }
703                 }
704                 Cache::set($match[1],$text);
705         }
706         return($text);
707 }
708
709 function bb_CleanPictureLinks($text) {
710         $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_CleanPictureLinksSub', $text);
711         return ($text);
712 }
713
714         // BBcode 2 HTML was written by WAY2WEB.net
715         // extended to work with Mistpark/Friendica - Mike Macgirvin
716
717 function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false) {
718
719         $a = get_app();
720
721         // Hide all [noparse] contained bbtags by spacefying them
722         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
723
724         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
725         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
726         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
727
728         // Remove the abstract element. It is a non visible element.
729         $Text = remove_abstract($Text);
730
731         // Move all spaces out of the tags
732         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
733         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
734
735         // Extract the private images which use data urls since preg has issues with
736         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
737         // in after we've done all the regex matching. We cannot use any preg functions to do this.
738
739         $extracted = bb_extract_images($Text);
740         $Text = $extracted['body'];
741         $saved_image = $extracted['images'];
742
743         // If we find any event code, turn it into an event.
744         // After we're finished processing the bbcode we'll
745         // replace all of the event code with a reformatted version.
746
747         $ev = bbtoevent($Text);
748
749         // Replace any html brackets with HTML Entities to prevent executing HTML or script
750         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
751
752         $Text = str_replace("<", "&lt;", $Text);
753         $Text = str_replace(">", "&gt;", $Text);
754
755         // remove some newlines before the general conversion
756         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
757         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
758
759         $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
760         $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
761
762         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
763         if (!$tryoembed)
764                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
765
766         // Convert new line chars to html <br /> tags
767
768         // nlbr seems to be hopelessly messed up
769         //      $Text = nl2br($Text);
770
771         // We'll emulate it.
772
773         $Text = trim($Text);
774         $Text = str_replace("\r\n","\n", $Text);
775
776         // removing multiplicated newlines
777         if (get_config("system", "remove_multiplicated_lines")) {
778                 $search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ", "[/attachment]\n",
779                                 "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n");
780                 $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
781                                 "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]");
782                 do {
783                         $oldtext = $Text;
784                         $Text = str_replace($search, $replace, $Text);
785                 } while ($oldtext != $Text);
786         }
787
788         // Handle attached links or videos
789         $Text = bb_attachment($Text, $simplehtml, $tryoembed);
790
791         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
792
793         if($preserve_nl)
794                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
795
796         // Set up the parameters for a URL search string
797         $URLSearchString = "^\[\]";
798         // Set up the parameters for a MAIL search string
799         $MAILSearchString = $URLSearchString;
800
801         // Remove all hashtag addresses
802         if ((!$tryoembed OR $simplehtml) AND !in_array($simplehtml, array(3, 7)))
803                 $Text = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $Text);
804         elseif ($simplehtml == 3)
805                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
806                         '$1<a href="$2">$3</a>',
807                         $Text);
808         elseif ($simplehtml == 7)
809                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
810                         '$1<span class="vcard"><a href="$2" class="url" title="$3"><span class="fn nickname mention">$3</span></a></span>',
811                         $Text);
812
813
814         // Bookmarks in red - will be converted to bookmarks in friendica
815         $Text = preg_replace("/#\^\[url\]([$URLSearchString]*)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $Text);
816         $Text = preg_replace("/#\^\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $Text);
817         $Text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
818                                 "[bookmark=$1]$2[/bookmark]", $Text);
819
820         if (in_array($simplehtml, array(2, 6, 7, 8, 9))) {
821                 $Text = preg_replace_callback("/([^#@])\[url\=([^\]]*)\](.*?)\[\/url\]/ism","bb_expand_links",$Text);
822                 //$Text = preg_replace("/[^#@]\[url\=([^\]]*)\](.*?)\[\/url\]/ism",' $2 [url]$1[/url]',$Text);
823                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",' $2 [url]$1[/url]',$Text);
824         }
825
826         if ($simplehtml == 5)
827                 $Text = preg_replace("/[^#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[url]$1[/url]', $Text);
828
829         // Perform URL Search
830         if ($tryoembed)
831                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'tryoembed',$Text);
832
833         if ($simplehtml == 5)
834                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url]$1[/url]',$Text);
835         else
836                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
837
838         // Handle Diaspora posts
839         $Text = preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi", 'bb_DiasporaLinks', $Text);
840
841         // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
842 //      if ($simplehtml != 7) {
843                 if (!$forplaintext)
844                         $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="_blank">$2</a>', $Text);
845                 else {
846                         $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism"," $1 ",$Text);
847                         $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
848                 }
849 //      }
850
851         if ($tryoembed)
852                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
853
854         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $Text);
855         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
856         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
857
858         // Red compatibility, though the link can't be authenticated on Friendica
859         $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
860
861
862         // we may need to restrict this further if it picks up too many strays
863         // link acct:user@host to a webfinger profile redirector
864
865         $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
866                 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
867
868         // Perform MAIL Search
869         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
870         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
871
872         // leave open the posibility of [map=something]
873         // this is replaced in prepare_body() which has knowledge of the item location
874
875         if (strpos($Text,'[/map]') !== false) {
876                 $Text = preg_replace_callback("/\[map\](.*?)\[\/map\]/ism", 'bb_map_location', $Text);
877         }
878         if (strpos($Text,'[map=') !== false) {
879                 $Text = preg_replace_callback("/\[map=(.*?)\]/ism", 'bb_map_coords', $Text);
880         }
881         if (strpos($Text,'[map]') !== false) {
882                 $Text = preg_replace("/\[map\]/", '<div class="map"></div>', $Text);
883         }
884
885         // Check for headers
886         $Text = preg_replace("(\[h1\](.*?)\[\/h1\])ism",'<h1>$1</h1>',$Text);
887         $Text = preg_replace("(\[h2\](.*?)\[\/h2\])ism",'<h2>$1</h2>',$Text);
888         $Text = preg_replace("(\[h3\](.*?)\[\/h3\])ism",'<h3>$1</h3>',$Text);
889         $Text = preg_replace("(\[h4\](.*?)\[\/h4\])ism",'<h4>$1</h4>',$Text);
890         $Text = preg_replace("(\[h5\](.*?)\[\/h5\])ism",'<h5>$1</h5>',$Text);
891         $Text = preg_replace("(\[h6\](.*?)\[\/h6\])ism",'<h6>$1</h6>',$Text);
892
893         // Check for bold text
894         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
895
896         // Check for Italics text
897         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
898
899         // Check for Underline text
900         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
901
902         // Check for strike-through text
903         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
904
905         // Check for over-line text
906         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
907
908         // Check for colored text
909         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
910
911         // Check for sized text
912         // [size=50] --> font-size: 50px (with the unit).
913         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px; line-height: initial;\">$2</span>",$Text);
914         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1; line-height: initial;\">$2</span>",$Text);
915
916         // Check for centered text
917         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
918
919         // Check for list text
920         $Text = str_replace("[*]", "<li>", $Text);
921
922         // Check for style sheet commands
923         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
924
925         // Check for CSS classes
926         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
927
928         // handle nested lists
929         $endlessloop = 0;
930
931         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
932                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
933                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
934                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
935                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
936                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
937                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
938                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
939                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
940                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
941                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
942                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
943                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
944                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
945         }
946
947         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
948         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
949         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
950         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
951
952         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
953         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
954
955         $Text = str_replace('[hr]','<hr />', $Text);
956
957         // This is actually executed in prepare_body()
958
959         $Text = str_replace('[nosmile]','',$Text);
960
961         // Check for font change text
962         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
963
964         // Declare the format for [code] layout
965
966 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
967
968         $CodeLayout = '<code>$1</code>';
969         // Check for [code] text
970         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
971
972         // Declare the format for [spoiler] layout
973         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
974
975         // Check for [spoiler] text
976         // handle nested quotes
977         $endlessloop = 0;
978         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
979                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
980
981         // Check for [spoiler=Author] text
982
983         $t_wrote = t('$1 wrote:');
984
985         // handle nested quotes
986         $endlessloop = 0;
987         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
988                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
989                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
990                                      $Text);
991
992         // Declare the format for [quote] layout
993         $QuoteLayout = '<blockquote>$1</blockquote>';
994
995         // Check for [quote] text
996         // handle nested quotes
997         $endlessloop = 0;
998         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
999                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
1000
1001         // Check for [quote=Author] text
1002
1003         $t_wrote = t('$1 wrote:');
1004
1005         // handle nested quotes
1006         $endlessloop = 0;
1007         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
1008                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
1009                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
1010                                      $Text);
1011
1012
1013         // [img=widthxheight]image source[/img]
1014         $Text = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", 'bb_PictureCacheExt', $Text);
1015
1016         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
1017         $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
1018
1019         // Images
1020         // [img]pathtoimage[/img]
1021         $Text = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'bb_PictureCache', $Text);
1022
1023         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1024         $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1025
1026         // Shared content
1027         $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
1028                 function ($match) use ($simplehtml){
1029                         return(bb_ShareAttributes($match, $simplehtml));
1030                 },$Text);
1031
1032         $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism",'<br/><img src="' .$a->get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . t('Encrypted content') . '" /><br />', $Text);
1033         $Text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism",'<br/><img src="' .$a->get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
1034         //$Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism",'<br/><img src="' .$a->get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
1035
1036
1037         // Try to Oembed
1038         if ($tryoembed) {
1039                 $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></video>', $Text);
1040                 $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
1041
1042                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
1043                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
1044         } else {
1045                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
1046                                         '<a href="$1" target="_blank">$1</a>', $Text);
1047                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
1048                                         '<a href="$1" target="_blank">$1</a>', $Text);
1049         }
1050
1051         // html5 video and audio
1052
1053
1054         if ($tryoembed)
1055                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
1056         else
1057                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
1058
1059         // Youtube extensions
1060         if ($tryoembed) {
1061                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1062                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1063                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
1064         }
1065
1066         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1067         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1068         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1069
1070         if ($tryoembed)
1071                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="https://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
1072         else
1073                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1074                                         '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $Text);
1075
1076         if ($tryoembed) {
1077                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1078                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1079         }
1080
1081         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1082         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1083
1084         if ($tryoembed)
1085                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="https://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
1086         else
1087                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1088                                         '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $Text);
1089
1090 //      $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<object width="425" height="350" type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1" ><param name="movie" value="http://www.youtube.com/v/$1"></param><!--[if IE]><embed src="http://www.youtube.com/v/$1" type="application/x-shockwave-flash" width="425" height="350" /><![endif]--></object>', $Text);
1091
1092         // oembed tag
1093         $Text = oembed_bbcode2html($Text);
1094
1095         // Avoid triple linefeeds through oembed
1096         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
1097
1098         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1099         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1100         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1101         // start which is always required). Allow desc with a missing summary for compatibility.
1102
1103         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
1104                 $sub = format_event_html($ev, $simplehtml);
1105
1106                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
1107                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
1108                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
1109                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
1110                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
1111                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
1112         }
1113
1114
1115         //replace oneliner <code> with <key>
1116         $Text = preg_replace_callback("|(?!<br[^>]*>)<code>([^<]*)</code>(?!<br[^>]*>)|ism", 'bb_onelinecode_cb', $Text);
1117
1118         // Unhide all [noparse] contained bbtags unspacefying them
1119         // and triming the [noparse] tag.
1120
1121         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
1122         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
1123         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
1124
1125
1126         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
1127         $Text = preg_replace('/\&\#039\;/','\'',$Text);
1128         $Text = preg_replace('/\&quot\;/','"',$Text);
1129
1130         // fix any escaped ampersands that may have been converted into links
1131         $Text = preg_replace("/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
1132         $Text = preg_replace("/\<([^>]*?)(src|href)=\"(?!http|ftp|mailto|gopher|cid)(.*?)\>/ism",'<$1$2="">',$Text);
1133
1134         if($saved_image)
1135                 $Text = bb_replace_images($Text, $saved_image);
1136
1137         // Clean up the HTML by loading and saving the HTML with the DOM.
1138         // Bad structured html can break a whole page.
1139         // For performance reasons do it only with ativated item cache or at export.
1140         if (!$tryoembed OR (get_itemcachepath() != "")) {
1141                 $doc = new DOMDocument();
1142                 $doc->preserveWhiteSpace = false;
1143
1144                 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1145
1146                 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1147                 $encoding = '<?xml encoding="UTF-8">';
1148                 @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
1149                 $doc->encoding = 'UTF-8';
1150                 $Text = $doc->saveHTML();
1151                 $Text = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $Text);
1152
1153                 $Text = str_replace('<br></li>','</li>', $Text);
1154
1155                 //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1156         }
1157
1158         // Clean up some useless linebreaks in lists
1159         //$Text = str_replace('<br /><ul','<ul ', $Text);
1160         //$Text = str_replace('</ul><br />','</ul>', $Text);
1161         //$Text = str_replace('</li><br />','</li>', $Text);
1162         //$Text = str_replace('<br /><li>','<li>', $Text);
1163         //      $Text = str_replace('<br /><ul','<ul ', $Text);
1164
1165         call_hooks('bbcode',$Text);
1166
1167         return trim($Text);
1168 }
1169
1170 /**
1171  * @brief Removes the "abstract" element from the text
1172  *
1173  * @param string $text The text with BBCode
1174  * @return string The same text - but without "abstract" element
1175  */
1176 function remove_abstract($text) {
1177         $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
1178         $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
1179
1180         return $text;
1181 }
1182
1183 /**
1184  * @brief Returns the value of the "abstract" element
1185  *
1186  * @param string $text The text that maybe contains the element
1187  * @param string $addon The addon for which the abstract is meant for
1188  * @return string The abstract
1189  */
1190 function fetch_abstract($text, $addon = "") {
1191         $abstract = "";
1192         $abstracts = array();
1193         $addon = strtolower($addon);
1194
1195         if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))
1196                 foreach ($results AS $result)
1197                         $abstracts[strtolower($result[1])] = $result[2];
1198
1199         if (isset($abstracts[$addon]))
1200                 $abstract = $abstracts[$addon];
1201
1202         if ($abstract == "")
1203                 if (preg_match("/\[abstract\](.*?)\[\/abstract\]/ism",$text, $result))
1204                         $abstract = $result[1];
1205
1206         return $abstract;
1207 }
1208 ?>