]> git.mxchange.org Git - friendica.git/blob - include/bbcode.php
Merge pull request #2480 from rabuzarus/2504_vier_mobile_fix
[friendica.git] / include / bbcode.php
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         if ($plaintext)
105                 $data["title"] = $data["url"];
106
107         if (($data["text"] == "") AND ($data["title"] != "") AND ($data["url"] == ""))
108                 return $data["title"].$data["after"];
109
110         // If the link already is included in the post, don't add it again
111         if (($data["url"] != "") AND strpos($data["text"], $data["url"]))
112                 return $data["text"].$data["after"];
113
114         $text = $data["text"];
115
116         if (($data["url"] != "") AND ($data["title"] != ""))
117                 $text .= "\n[url=".$data["url"]."]".$data["title"]."[/url]";
118         elseif (($link != ""))
119                 $text .= "\n".$data["url"];
120
121         return $text.$data["after"];
122 }
123
124 function bb_cleanstyle($st) {
125   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
126 }
127
128 function bb_cleanclass($st) {
129   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
130 }
131
132 function cleancss($input) {
133
134         $cleaned = "";
135
136         $input = strtolower($input);
137
138         for ($i = 0; $i < strlen($input); $i++) {
139                 $char = substr($input, $i, 1);
140
141                 if (($char >= "a") and ($char <= "z"))
142                         $cleaned .= $char;
143
144                 if (!(strpos(" #;:0123456789-_", $char) === false))
145                         $cleaned .= $char;
146         }
147
148         return($cleaned);
149 }
150
151 function stripcode_br_cb($s) {
152         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
153 }
154
155 function bb_onelinecode_cb($match) {
156         if (strpos($match[1],"<br>")===false){
157                 return "<key>".$match[1]."</key>";
158         }
159         return "<code>".$match[1]."</code>";
160 }
161
162 function tryoembed($match){
163         $url = $match[1];
164
165         // Always embed the SSL version
166         $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
167                                 array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
168
169
170         $o = oembed_fetch_url($url);
171
172         if (!is_object($o))
173                 return $match[0];
174
175         if (isset($match[2]))
176                 $o->title = $match[2];
177
178         if ($o->type=="error") return $match[0];
179
180         $html = oembed_format_object($o);
181         return $html;
182
183 }
184
185 // [noparse][i]italic[/i][/noparse] turns into
186 // [noparse][ i ]italic[ /i ][/noparse],
187 // to hide them from parser.
188
189 function bb_spacefy($st) {
190   $whole_match = $st[0];
191   $captured = $st[1];
192   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
193   $new_str = str_replace($captured, $spacefied, $whole_match);
194   return $new_str;
195 }
196
197 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
198 // now turns back and the [noparse] tags are trimed
199 // returning [i]italic[/i]
200
201 function bb_unspacefy_and_trim($st) {
202   $whole_match = $st[0];
203   $captured = $st[1];
204   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
205   return $unspacefied;
206 }
207
208 function bb_find_open_close($s, $open, $close, $occurance = 1) {
209
210         if($occurance < 1)
211                 $occurance = 1;
212
213         $start_pos = -1;
214         for($i = 1; $i <= $occurance; $i++) {
215                 if( $start_pos !== false)
216                         $start_pos = strpos($s, $open, $start_pos + 1);
217         }
218
219         if( $start_pos === false)
220                 return false;
221
222         $end_pos = strpos($s, $close, $start_pos);
223
224         if( $end_pos === false)
225                 return false;
226
227         $res = array( 'start' => $start_pos, 'end' => $end_pos );
228
229         return $res;
230 }
231
232 function get_bb_tag_pos($s, $name, $occurance = 1) {
233
234         if($occurance < 1)
235                 $occurance = 1;
236
237         $start_open = -1;
238         for($i = 1; $i <= $occurance; $i++) {
239                 if( $start_open !== false)
240                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
241         }
242
243         if( $start_open === false)
244                 return false;
245
246         $start_equal = strpos($s, '=', $start_open);
247         $start_close = strpos($s, ']', $start_open);
248
249         if( $start_close === false)
250                 return false;
251
252         $start_close++;
253
254         $end_open = strpos($s, '[/' . $name . ']', $start_close);
255
256         if( $end_open === false)
257                 return false;
258
259         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
260                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
261         if( $start_equal !== false)
262                 $res['start']['equal'] = $start_equal + 1;
263
264         return $res;
265 }
266
267 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
268
269         $string = $s;
270
271         $occurance = 1;
272         $pos = get_bb_tag_pos($string, $name, $occurance);
273         while($pos !== false && $occurance < 1000) {
274
275                 $start = substr($string, 0, $pos['start']['open']);
276                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
277                 $end = substr($string, $pos['end']['close']);
278                 if($end === false)
279                         $end = '';
280
281                 $subject = preg_replace($pattern, $replace, $subject);
282                 $string = $start . $subject . $end;
283
284                 $occurance++;
285                 $pos = get_bb_tag_pos($string, $name, $occurance);
286         }
287
288         return $string;
289 }
290
291 if(! function_exists('bb_extract_images')) {
292 function bb_extract_images($body) {
293
294         $saved_image = array();
295         $orig_body = $body;
296         $new_body = '';
297
298         $cnt = 0;
299         $img_start = strpos($orig_body, '[img');
300         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
301         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
302         while(($img_st_close !== false) && ($img_end !== false)) {
303
304                 $img_st_close++; // make it point to AFTER the closing bracket
305                 $img_end += $img_start;
306
307                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
308                         // This is an embedded image
309
310                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
311                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
312
313                         $cnt++;
314                 }
315                 else
316                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
317
318                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
319
320                 if($orig_body === false) // in case the body ends on a closing image tag
321                         $orig_body = '';
322
323                 $img_start = strpos($orig_body, '[img');
324                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
325                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
326         }
327
328         $new_body = $new_body . $orig_body;
329
330         return array('body' => $new_body, 'images' => $saved_image);
331 }}
332
333 if(! function_exists('bb_replace_images')) {
334 function bb_replace_images($body, $images) {
335
336         $newbody = $body;
337
338         $cnt = 0;
339         foreach($images as $image) {
340                 // We're depending on the property of 'foreach' (specified on the PHP website) that
341                 // it loops over the array starting from the first element and going sequentially
342                 // to the last element
343                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . t('Image/photo') . '" />', $newbody);
344                 $cnt++;
345         }
346
347         return $newbody;
348 }}
349
350 function bb_ShareAttributes($share, $simplehtml) {
351         $attributes = $share[2];
352
353         $author = "";
354         preg_match("/author='(.*?)'/ism", $attributes, $matches);
355         if ($matches[1] != "")
356                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
357
358         preg_match('/author="(.*?)"/ism', $attributes, $matches);
359         if ($matches[1] != "")
360                 $author = $matches[1];
361
362         $profile = "";
363         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
364         if ($matches[1] != "")
365                 $profile = $matches[1];
366
367         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
368         if ($matches[1] != "")
369                 $profile = $matches[1];
370
371         $avatar = "";
372         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
373         if ($matches[1] != "")
374                 $avatar = $matches[1];
375
376         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
377         if ($matches[1] != "")
378                 $avatar = $matches[1];
379
380         $link = "";
381         preg_match("/link='(.*?)'/ism", $attributes, $matches);
382         if ($matches[1] != "")
383                 $link = $matches[1];
384
385         preg_match('/link="(.*?)"/ism', $attributes, $matches);
386         if ($matches[1] != "")
387                 $link = $matches[1];
388
389         $posted = "";
390
391         $itemcache = get_itemcachepath();
392
393         // relative dates only make sense when they aren't cached
394         if ($itemcache == "") {
395                 preg_match("/posted='(.*?)'/ism", $attributes, $matches);
396                 if ($matches[1] != "")
397                         $posted = $matches[1];
398
399                 preg_match('/posted="(.*?)"/ism', $attributes, $matches);
400                 if ($matches[1] != "")
401                         $posted = $matches[1];
402
403                 $reldate = (($posted) ? " " . relative_date($posted) : '');
404         }
405
406         $data = get_contact_details_by_url($profile);
407
408         if (isset($data["name"]) AND isset($data["addr"]))
409                 $userid_compact = $data["name"]." (".$data["addr"].")";
410         else
411                 $userid_compact = GetProfileUsername($profile,$author, true);
412
413         if (isset($data["addr"]))
414                 $userid = $data["addr"];
415         else
416                 $userid = GetProfileUsername($profile,$author, false);
417
418         if (isset($data["name"]))
419                 $author = $data["name"];
420
421         if (isset($data["photo"]))
422                 $avatar = $data["photo"];
423
424         $preshare = trim($share[1]);
425
426         if ($preshare != "")
427                 $preshare .= "<br /><br />";
428
429         switch ($simplehtml) {
430                 case 1:
431                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$share[3]."«";
432                         break;
433                 case 2:
434                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
435                         break;
436                 case 3: // Diaspora
437                         $headline .= '<b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b><br />';
438
439                         $text = trim($share[1]);
440
441                         if ($text != "")
442                                 $text .= "<hr />";
443
444                         if (substr(normalise_link($link), 0, 19) != "http://twitter.com/") {
445                                 $text .= $headline.'<blockquote>'.trim($share[3])."</blockquote><br />";
446
447                                 if ($link != "")
448                                         $text .= '<br /><a href="'.$link.'">[l]</a>';
449                         } else
450                                 $text .= '<br /><a href="'.$link.'">'.$link.'</a>';
451
452                         break;
453                 case 4:
454                         $headline = '<div class="shared_header">';
455                         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
456                         $headline .= sprintf(t('<a href="%1$s" target="_blank">%2$s</a> %3$s'), $link, $userid, $posted);
457                         $headline .= ":</b></span></div>";
458
459                         $text = trim($share[1]);
460
461                         if ($text != "")
462                                 $text .= "<hr />";
463
464                         $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
465
466                         break;
467                 case 5:
468                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
469                         break;
470                 case 6: // app.net
471                         $text = $preshare."&gt;&gt; @".$userid_compact.": <br />".$share[3];
472                         break;
473                 case 7: // statusnet/GNU Social
474                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8')." @".$userid_compact.": ".$share[3];
475                         break;
476                 case 8: // twitter
477                         $text = $preshare."RT @".$userid_compact.": ".$share[3];
478                         break;
479                 case 9: // Google+/Facebook
480                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
481
482                         if ($link != "")
483                                 $text .= "<br /><br />".$link;
484                         break;
485                 default:
486                         $headline = trim($share[1]).'<div class="shared_header">';
487                         if ($avatar != "")
488                                 $headline .= '<img src="'.proxy_url($avatar, false, PROXY_SIZE_MICRO).'" height="32" width="32" >';
489
490                         $headline .= sprintf(t('<span><a href="%s" target="_blank">%s</a> wrote the following <a href="%s" target="_blank">post</a>'.$reldate.':</span>'), $profile, $author, $link);
491                         $headline .= "</div>";
492                         $text = $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote>";
493                         break;
494         }
495         return($text);
496 }
497
498 function GetProfileUsername($profile, $username, $compact = false, $getnetwork = false) {
499
500         $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
501         if ($twitter != $profile) {
502                 if ($getnetwork)
503                         return(NETWORK_TWITTER);
504                 elseif ($compact)
505                         return($twitter);
506                 else
507                         return($username." (".$twitter.")");
508         }
509
510         $appnet = preg_replace("=https?://alpha.app.net/(.*)=ism", "$1@alpha.app.net", $profile);
511         if ($appnet != $profile) {
512                 if ($getnetwork)
513                         return(NETWORK_APPNET);
514                 elseif ($compact)
515                         return($appnet);
516                 else
517                         return($username." (".$appnet.")");
518         }
519
520         $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
521         if ($gplus != $profile) {
522                 if ($getnetwork)
523                         return(NETWORK_GPLUS);
524                 elseif ($compact)
525                         return($gplususername." (".$username.")");
526                 else
527                         return($username." (".$gplus.")");
528         }
529
530         $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
531         if ($friendica != $profile) {
532                 if ($getnetwork)
533                         return(NETWORK_DFRN);
534                 elseif ($compact)
535                         return($friendica);
536                 else
537                         return($username." (".$friendica.")");
538         }
539
540         $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
541         if ($diaspora != $profile) {
542                 if ($getnetwork)
543                         return(NETWORK_DIASPORA);
544                 elseif ($compact)
545                         return($diaspora);
546                 else
547                         return($username." (".$diaspora.")");
548         }
549
550         $red = preg_replace("=https?://(.*)/channel/(.*)=ism", "$2@$1", $profile);
551         if ($red != $profile) {
552                 if ($getnetwork)
553                         // red is identified as Diaspora - friendica can't connect directly to it
554                         return(NETWORK_DIASPORA);
555                 elseif ($compact)
556                         return($red);
557                 else
558                         return($username." (".$red.")");
559         }
560
561         $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
562         if ($StatusnetHost != $profile) {
563                 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
564                 if ($StatusnetUser != $profile) {
565                         $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
566                         $user = json_decode($UserData);
567                         if ($user) {
568                                 if ($getnetwork)
569                                         return(NETWORK_STATUSNET);
570                                 elseif ($compact)
571                                         return($user->screen_name."@".$StatusnetHost);
572                                 else
573                                         return($username." (".$user->screen_name."@".$StatusnetHost.")");
574                         }
575                 }
576         }
577
578         // pumpio (http://host.name/user)
579         $rest = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$3", $profile);
580         if ($rest == "") {
581                 $pumpio = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$2@$1", $profile);
582                 if ($pumpio != $profile) {
583                         if ($getnetwork)
584                                 return(NETWORK_PUMPIO);
585                         elseif ($compact)
586                                 return($pumpio);
587                         else
588                                 return($username." (".$pumpio.")");
589                 }
590         }
591
592         return($username);
593 }
594
595 function bb_DiasporaLinks($match) {
596         $a = get_app();
597
598         return "[url=".$a->get_baseurl()."/display/".$match[1]."]".$match[2]."[/url]";
599 }
600
601 function bb_RemovePictureLinks($match) {
602         $text = Cache::get($match[1]);
603
604         if(is_null($text)){
605                 $a = get_app();
606
607                 $stamp1 = microtime(true);
608
609                 $ch = @curl_init($match[1]);
610                 @curl_setopt($ch, CURLOPT_NOBODY, true);
611                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
612                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
613                 @curl_exec($ch);
614                 $curl_info = @curl_getinfo($ch);
615
616                 $a->save_timestamp($stamp1, "network");
617
618                 if (substr($curl_info["content_type"], 0, 6) == "image/")
619                         $text = "[url=".$match[1]."]".$match[1]."[/url]";
620                 else {
621                         $text = "[url=".$match[2]."]".$match[2]."[/url]";
622
623                         // if its not a picture then look if its a page that contains a picture link
624                         require_once("include/network.php");
625
626                         $body = fetch_url($match[1]);
627
628                         $doc = new DOMDocument();
629                         @$doc->loadHTML($body);
630                         $xpath = new DomXPath($doc);
631                         $list = $xpath->query("//meta[@name]");
632                         foreach ($list as $node) {
633                                 $attr = array();
634
635                                 if ($node->attributes->length)
636                                         foreach ($node->attributes as $attribute)
637                                                 $attr[$attribute->name] = $attribute->value;
638
639                                 if (strtolower($attr["name"]) == "twitter:image")
640                                         $text = "[url=".$attr["content"]."]".$attr["content"]."[/url]";
641                         }
642                 }
643                 Cache::set($match[1],$text);
644         }
645         return($text);
646 }
647
648 function bb_expand_links($match) {
649         if (($match[3] == "") OR ($match[2] == $match[3]) OR stristr($match[2], $match[3]))
650                 return ($match[1]."[url]".$match[2]."[/url]");
651         else
652                 return ($match[1].$match[3]." [url]".$match[2]."[/url]");
653 }
654
655 function bb_CleanPictureLinksSub($match) {
656         $text = Cache::get($match[1]);
657
658         if(is_null($text)){
659                 $a = get_app();
660
661                 $stamp1 = microtime(true);
662
663                 $ch = @curl_init($match[1]);
664                 @curl_setopt($ch, CURLOPT_NOBODY, true);
665                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
666                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
667                 @curl_exec($ch);
668                 $curl_info = @curl_getinfo($ch);
669
670                 $a->save_timestamp($stamp1, "network");
671
672                 // if its a link to a picture then embed this picture
673                 if (substr($curl_info["content_type"], 0, 6) == "image/")
674                         $text = "[img]".$match[1]."[/img]";
675                 else {
676                         $text = "[img]".$match[2]."[/img]";
677
678                         // if its not a picture then look if its a page that contains a picture link
679                         require_once("include/network.php");
680
681                         $body = fetch_url($match[1]);
682
683                         $doc = new DOMDocument();
684                         @$doc->loadHTML($body);
685                         $xpath = new DomXPath($doc);
686                         $list = $xpath->query("//meta[@name]");
687                         foreach ($list as $node) {
688                                 $attr = array();
689
690                                 if ($node->attributes->length)
691                                         foreach ($node->attributes as $attribute)
692                                                 $attr[$attribute->name] = $attribute->value;
693
694                                 if (strtolower($attr["name"]) == "twitter:image")
695                                         $text = "[img]".$attr["content"]."[/img]";
696                         }
697                 }
698                 Cache::set($match[1],$text);
699         }
700         return($text);
701 }
702
703 function bb_CleanPictureLinks($text) {
704         $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_CleanPictureLinksSub', $text);
705         return ($text);
706 }
707
708         // BBcode 2 HTML was written by WAY2WEB.net
709         // extended to work with Mistpark/Friendica - Mike Macgirvin
710
711 function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false) {
712
713         $a = get_app();
714
715         // Hide all [noparse] contained bbtags by spacefying them
716         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
717
718         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
719         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
720         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
721
722         // Remove the abstract element. It is a non visible element.
723         $Text = remove_abstract($Text);
724
725         // Move all spaces out of the tags
726         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
727         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
728
729         // Extract the private images which use data urls since preg has issues with
730         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
731         // in after we've done all the regex matching. We cannot use any preg functions to do this.
732
733         $extracted = bb_extract_images($Text);
734         $Text = $extracted['body'];
735         $saved_image = $extracted['images'];
736
737         // If we find any event code, turn it into an event.
738         // After we're finished processing the bbcode we'll
739         // replace all of the event code with a reformatted version.
740
741         $ev = bbtoevent($Text);
742
743         // Replace any html brackets with HTML Entities to prevent executing HTML or script
744         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
745
746         $Text = str_replace("<", "&lt;", $Text);
747         $Text = str_replace(">", "&gt;", $Text);
748
749         // remove some newlines before the general conversion
750         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
751         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
752
753         $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
754         $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
755
756         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
757         if (!$tryoembed)
758                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
759
760         // Convert new line chars to html <br /> tags
761
762         // nlbr seems to be hopelessly messed up
763         //      $Text = nl2br($Text);
764
765         // We'll emulate it.
766
767         $Text = trim($Text);
768         $Text = str_replace("\r\n","\n", $Text);
769
770         // removing multiplicated newlines
771         if (get_config("system", "remove_multiplicated_lines")) {
772                 $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",
773                                 "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n");
774                 $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
775                                 "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]");
776                 do {
777                         $oldtext = $Text;
778                         $Text = str_replace($search, $replace, $Text);
779                 } while ($oldtext != $Text);
780         }
781
782         // Handle attached links or videos
783         $Text = bb_attachment($Text, $simplehtml, $tryoembed);
784
785         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
786
787         if($preserve_nl)
788                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
789
790         // Set up the parameters for a URL search string
791         $URLSearchString = "^\[\]";
792         // Set up the parameters for a MAIL search string
793         $MAILSearchString = $URLSearchString;
794
795         // Remove all hashtag addresses
796         if ((!$tryoembed OR $simplehtml) AND !in_array($simplehtml, array(3, 7)))
797                 $Text = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $Text);
798         elseif ($simplehtml == 3)
799                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
800                         '$1<a href="$2">$3</a>',
801                         $Text);
802         elseif ($simplehtml == 7)
803                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
804                         '$1<span class="vcard"><a href="$2" class="url" title="$3"><span class="fn nickname mention">$3</span></a></span>',
805                         $Text);
806
807
808         // Bookmarks in red - will be converted to bookmarks in friendica
809         $Text = preg_replace("/#\^\[url\]([$URLSearchString]*)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $Text);
810         $Text = preg_replace("/#\^\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $Text);
811         $Text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
812                                 "[bookmark=$1]$2[/bookmark]", $Text);
813
814         if (in_array($simplehtml, array(2, 6, 7, 8, 9))) {
815                 $Text = preg_replace_callback("/([^#@])\[url\=([^\]]*)\](.*?)\[\/url\]/ism","bb_expand_links",$Text);
816                 //$Text = preg_replace("/[^#@]\[url\=([^\]]*)\](.*?)\[\/url\]/ism",' $2 [url]$1[/url]',$Text);
817                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",' $2 [url]$1[/url]',$Text);
818         }
819
820         if ($simplehtml == 5)
821                 $Text = preg_replace("/[^#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[url]$1[/url]', $Text);
822
823         // Perform URL Search
824         if ($tryoembed)
825                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'tryoembed',$Text);
826
827         if ($simplehtml == 5)
828                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url]$1[/url]',$Text);
829         else
830                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
831
832         // Handle Diaspora posts
833         $Text = preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi", 'bb_DiasporaLinks', $Text);
834
835         // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
836 //      if ($simplehtml != 7) {
837                 if (!$forplaintext)
838                         $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="_blank">$2</a>', $Text);
839                 else {
840                         $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism"," $1 ",$Text);
841                         $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
842                 }
843 //      }
844
845         if ($tryoembed)
846                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
847
848         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $Text);
849         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
850         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
851
852         // Red compatibility, though the link can't be authenticated on Friendica
853         $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
854
855
856         // we may need to restrict this further if it picks up too many strays
857         // link acct:user@host to a webfinger profile redirector
858
859         $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
860                 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
861
862         // Perform MAIL Search
863         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
864         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
865
866         // leave open the posibility of [map=something]
867         // this is replaced in prepare_body() which has knowledge of the item location
868
869         if (strpos($Text,'[/map]') !== false) {
870                 $Text = preg_replace_callback("/\[map\](.*?)\[\/map\]/ism", 'bb_map_location', $Text);
871         }
872         if (strpos($Text,'[map=') !== false) {
873                 $Text = preg_replace_callback("/\[map=(.*?)\]/ism", 'bb_map_coords', $Text);
874         }
875         if (strpos($Text,'[map]') !== false) {
876                 $Text = preg_replace("/\[map\]/", '<div class="map"></div>', $Text);
877         }
878
879         // Check for headers
880         $Text = preg_replace("(\[h1\](.*?)\[\/h1\])ism",'<h1>$1</h1>',$Text);
881         $Text = preg_replace("(\[h2\](.*?)\[\/h2\])ism",'<h2>$1</h2>',$Text);
882         $Text = preg_replace("(\[h3\](.*?)\[\/h3\])ism",'<h3>$1</h3>',$Text);
883         $Text = preg_replace("(\[h4\](.*?)\[\/h4\])ism",'<h4>$1</h4>',$Text);
884         $Text = preg_replace("(\[h5\](.*?)\[\/h5\])ism",'<h5>$1</h5>',$Text);
885         $Text = preg_replace("(\[h6\](.*?)\[\/h6\])ism",'<h6>$1</h6>',$Text);
886
887         // Check for bold text
888         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
889
890         // Check for Italics text
891         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
892
893         // Check for Underline text
894         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
895
896         // Check for strike-through text
897         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
898
899         // Check for over-line text
900         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
901
902         // Check for colored text
903         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
904
905         // Check for sized text
906         // [size=50] --> font-size: 50px (with the unit).
907         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px; line-height: initial;\">$2</span>",$Text);
908         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1; line-height: initial;\">$2</span>",$Text);
909
910         // Check for centered text
911         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
912
913         // Check for list text
914         $Text = str_replace("[*]", "<li>", $Text);
915
916         // Check for style sheet commands
917         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
918
919         // Check for CSS classes
920         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
921
922         // handle nested lists
923         $endlessloop = 0;
924
925         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
926                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
927                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
928                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
929                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
930                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
931                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
932                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
933                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
934                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
935                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
936                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
937                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
938                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
939         }
940
941         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
942         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
943         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
944         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
945
946         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
947         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
948
949         $Text = str_replace('[hr]','<hr />', $Text);
950
951         // This is actually executed in prepare_body()
952
953         $Text = str_replace('[nosmile]','',$Text);
954
955         // Check for font change text
956         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
957
958         // Declare the format for [code] layout
959
960 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
961
962         $CodeLayout = '<code>$1</code>';
963         // Check for [code] text
964         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
965
966         // Declare the format for [spoiler] layout
967         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
968
969         // Check for [spoiler] text
970         // handle nested quotes
971         $endlessloop = 0;
972         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
973                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
974
975         // Check for [spoiler=Author] text
976
977         $t_wrote = t('$1 wrote:');
978
979         // handle nested quotes
980         $endlessloop = 0;
981         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
982                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
983                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
984                                      $Text);
985
986         // Declare the format for [quote] layout
987         $QuoteLayout = '<blockquote>$1</blockquote>';
988
989         // Check for [quote] text
990         // handle nested quotes
991         $endlessloop = 0;
992         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
993                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
994
995         // Check for [quote=Author] text
996
997         $t_wrote = t('$1 wrote:');
998
999         // handle nested quotes
1000         $endlessloop = 0;
1001         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
1002                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
1003                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
1004                                      $Text);
1005
1006
1007         // [img=widthxheight]image source[/img]
1008         $Text = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", 'bb_PictureCacheExt', $Text);
1009
1010         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
1011         $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
1012
1013         // Images
1014         // [img]pathtoimage[/img]
1015         $Text = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'bb_PictureCache', $Text);
1016
1017         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1018         $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1019
1020         // Shared content
1021         $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
1022                 function ($match) use ($simplehtml){
1023                         return(bb_ShareAttributes($match, $simplehtml));
1024                 },$Text);
1025
1026         $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);
1027         $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 />', $Text);
1028         //$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 />', $Text);
1029
1030
1031         // Try to Oembed
1032         if ($tryoembed) {
1033                 $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);
1034                 $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);
1035
1036                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
1037                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
1038         } else {
1039                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
1040                                         '<a href="$1" target="_blank">$1</a>', $Text);
1041                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
1042                                         '<a href="$1" target="_blank">$1</a>', $Text);
1043         }
1044
1045         // html5 video and audio
1046
1047
1048         if ($tryoembed)
1049                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
1050         else
1051                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
1052
1053         // Youtube extensions
1054         if ($tryoembed) {
1055                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1056                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1057                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
1058         }
1059
1060         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1061         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1062         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1063
1064         if ($tryoembed)
1065                 $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);
1066         else
1067                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1068                                         '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $Text);
1069
1070         if ($tryoembed) {
1071                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1072                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1073         }
1074
1075         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1076         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1077
1078         if ($tryoembed)
1079                 $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);
1080         else
1081                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1082                                         '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $Text);
1083
1084 //      $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);
1085
1086         // oembed tag
1087         $Text = oembed_bbcode2html($Text);
1088
1089         // Avoid triple linefeeds through oembed
1090         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
1091
1092         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1093         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1094         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1095         // start which is always required). Allow desc with a missing summary for compatibility.
1096
1097         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
1098                 $sub = format_event_html($ev, $simplehtml);
1099
1100                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
1101                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
1102                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
1103                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
1104                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
1105                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
1106         }
1107
1108
1109         //replace oneliner <code> with <key>
1110         $Text = preg_replace_callback("|(?!<br[^>]*>)<code>([^<]*)</code>(?!<br[^>]*>)|ism", 'bb_onelinecode_cb', $Text);
1111
1112         // Unhide all [noparse] contained bbtags unspacefying them
1113         // and triming the [noparse] tag.
1114
1115         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
1116         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
1117         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
1118
1119
1120         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
1121         $Text = preg_replace('/\&\#039\;/','\'',$Text);
1122         $Text = preg_replace('/\&quot\;/','"',$Text);
1123
1124         // fix any escaped ampersands that may have been converted into links
1125         $Text = preg_replace("/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
1126         $Text = preg_replace("/\<([^>]*?)(src|href)=\"(?!http|ftp|mailto|gopher|cid)(.*?)\>/ism",'<$1$2="">',$Text);
1127
1128         if($saved_image)
1129                 $Text = bb_replace_images($Text, $saved_image);
1130
1131         // Clean up the HTML by loading and saving the HTML with the DOM.
1132         // Bad structured html can break a whole page.
1133         // For performance reasons do it only with ativated item cache or at export.
1134         if (!$tryoembed OR (get_itemcachepath() != "")) {
1135                 $doc = new DOMDocument();
1136                 $doc->preserveWhiteSpace = false;
1137
1138                 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1139
1140                 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1141                 $encoding = '<?xml encoding="UTF-8">';
1142                 @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
1143                 $doc->encoding = 'UTF-8';
1144                 $Text = $doc->saveHTML();
1145                 $Text = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $Text);
1146
1147                 $Text = str_replace('<br></li>','</li>', $Text);
1148
1149                 //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1150         }
1151
1152         // Clean up some useless linebreaks in lists
1153         //$Text = str_replace('<br /><ul','<ul ', $Text);
1154         //$Text = str_replace('</ul><br />','</ul>', $Text);
1155         //$Text = str_replace('</li><br />','</li>', $Text);
1156         //$Text = str_replace('<br /><li>','<li>', $Text);
1157         //      $Text = str_replace('<br /><ul','<ul ', $Text);
1158
1159         call_hooks('bbcode',$Text);
1160
1161         return trim($Text);
1162 }
1163
1164 /**
1165  * @brief Removes the "abstract" element from the text
1166  *
1167  * @param string $text The text with BBCode
1168  * @return string The same text - but without "abstract" element
1169  */
1170 function remove_abstract($text) {
1171         $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
1172         $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
1173
1174         return $text;
1175 }
1176
1177 /**
1178  * @brief Returns the value of the "abstract" element
1179  *
1180  * @param string $text The text that maybe contains the element
1181  * @param string $addon The addon for which the abstract is meant for
1182  * @return string The abstract
1183  */
1184 function fetch_abstract($text, $addon = "") {
1185         $abstract = "";
1186         $abstracts = array();
1187         $addon = strtolower($addon);
1188
1189         if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))
1190                 foreach ($results AS $result)
1191                         $abstracts[strtolower($result[1])] = $result[2];
1192
1193         if (isset($abstracts[$addon]))
1194                 $abstract = $abstracts[$addon];
1195
1196         if ($abstract == "")
1197                 if (preg_match("/\[abstract\](.*?)\[\/abstract\]/ism",$text, $result))
1198                         $abstract = $result[1];
1199
1200         return $abstract;
1201 }
1202 ?>