]> git.mxchange.org Git - friendica.git/blob - include/bbcode.php
Issue 2957: The avatar problem with mastodon should now finally be solved
[friendica.git] / include / bbcode.php
1 <?php
2 use \Friendica\Core\Config;
3
4 require_once("include/oembed.php");
5 require_once('include/event.php');
6 require_once('include/map.php');
7 require_once('mod/proxy.php');
8 require_once('include/Contact.php');
9 require_once('include/plaintext.php');
10
11 function bb_PictureCacheExt($matches) {
12         if (strpos($matches[3], "data:image/") === 0)
13                 return ($matches[0]);
14
15         $matches[3] = proxy_url($matches[3]);
16         return "[img=".$matches[1]."x".$matches[2]."]".$matches[3]."[/img]";
17 }
18
19 function bb_PictureCache($matches) {
20         if (strpos($matches[1], "data:image/") === 0)
21                 return ($matches[0]);
22
23         $matches[1] = proxy_url($matches[1]);
24         return "[img]".$matches[1]."[/img]";
25 }
26
27 function bb_map_coords($match) {
28         // the extra space in the following line is intentional
29         return str_replace($match[0],'<div class="map"  >' . generate_map(str_replace('/',' ',$match[1])) . '</div>', $match[0]);
30 }
31 function bb_map_location($match) {
32         // the extra space in the following line is intentional
33         return str_replace($match[0],'<div class="map"  >' . generate_named_map($match[1]) . '</div>', $match[0]);
34 }
35
36 function bb_attachment($Text, $simplehtml = false, $tryoembed = true) {
37
38         $data = get_attachment_data($Text);
39         if (!$data)
40                 return $Text;
41
42         if (isset($data["title"])) {
43                 $data["title"] = strip_tags($data["title"]);
44                 $data["title"] = str_replace(array("http://", "https://"), "", $data["title"]);
45         }
46
47         if (((strpos($data["text"], "[img=") !== false) OR (strpos($data["text"], "[img]") !== false)) AND ($data["image"] != "")) {
48                 $data["preview"] = $data["image"];
49                 $data["image"] = "";
50         }
51
52         if ($simplehtml == 7) {
53                 $title2 = $data["title"];
54
55                 $test1 = trim(html_entity_decode($data["text"],ENT_QUOTES,'UTF-8'));
56                 $test2 = trim(html_entity_decode($data["title"],ENT_QUOTES,'UTF-8'));
57
58                 // If the link description is similar to the text above then don't add the link description
59                 if (($data["title"] != "") AND ((strpos($test1,$test2) !== false) OR
60                         (similar_text($test1,$test2) / strlen($data["title"])) > 0.9))
61                         $title2 = $data["url"];
62                 $text = sprintf('<a href="%s" title="%s" class="attachment thumbnail" rel="nofollow external">%s</a><br />',
63                                 $data["url"], $data["title"], $title2);
64         } elseif (($simplehtml != 4) AND ($simplehtml != 0))
65                 $text = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
66         else {
67                 $text = sprintf('<span class="type-%s">', $data["type"]);
68
69                 $bookmark = array(sprintf('[bookmark=%s]%s[/bookmark]', $data["url"], $data["title"]), $data["url"], $data["title"]);
70                 if ($tryoembed)
71                         $oembed = tryoembed($bookmark);
72                 else
73                         $oembed = $bookmark[0];
74
75                 if (strstr(strtolower($oembed), "<iframe "))
76                         $text = $oembed;
77                 else {
78                         if (($data["image"] != "") AND !strstr(strtolower($oembed), "<img "))
79                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
80                         elseif (($data["preview"] != "") AND !strstr(strtolower($oembed), "<img "))
81                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
82
83                         if (($data["type"] == "photo") AND ($data["url"] != "") AND ($data["image"] != ""))
84                                 $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"]);
85                         else
86                                 $text .= $oembed;
87
88                         if (trim($data["description"]) != "")
89                                 $text .= sprintf('<blockquote>%s</blockquote></span>', trim(bbcode($data["description"])));
90                 }
91         }
92         return $data["text"].$text.$data["after"];
93 }
94
95 function bb_remove_share_information($Text, $plaintext = false, $nolink = false) {
96
97         $data = get_attachment_data($Text);
98
99         if (!$data)
100                 return $Text;
101
102         if ($nolink)
103                 return $data["text"].$data["after"];
104
105         $title = htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false);
106         $text = htmlentities($data["text"], ENT_QUOTES, 'UTF-8', false);
107         if ($plaintext OR (($title != "") AND strstr($text, $title)))
108                 $data["title"] = $data["url"];
109         elseif (($text != "") AND strstr($title, $text)) {
110                 $data["text"] = $data["title"];
111                 $data["title"] = $data["url"];
112         }
113
114         if (($data["text"] == "") AND ($data["title"] != "") AND ($data["url"] == ""))
115                 return $data["title"].$data["after"];
116
117         // If the link already is included in the post, don't add it again
118         if (($data["url"] != "") AND strpos($data["text"], $data["url"]))
119                 return $data["text"].$data["after"];
120
121         $text = $data["text"];
122
123         if (($data["url"] != "") AND ($data["title"] != ""))
124                 $text .= "\n[url=".$data["url"]."]".$data["title"]."[/url]";
125         elseif (($data["url"] != ""))
126                 $text .= "\n".$data["url"];
127
128         return $text."\n".$data["after"];
129 }
130
131 function bb_cleanstyle($st) {
132   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
133 }
134
135 function bb_cleanclass($st) {
136   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
137 }
138
139 function cleancss($input) {
140
141         $cleaned = "";
142
143         $input = strtolower($input);
144
145         for ($i = 0; $i < strlen($input); $i++) {
146                 $char = substr($input, $i, 1);
147
148                 if (($char >= "a") and ($char <= "z"))
149                         $cleaned .= $char;
150
151                 if (!(strpos(" #;:0123456789-_.%", $char) === false))
152                         $cleaned .= $char;
153         }
154
155         return($cleaned);
156 }
157
158 function stripcode_br_cb($s) {
159         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
160 }
161
162 function bb_onelinecode_cb($match) {
163         if (strpos($match[1],"<br>")===false){
164                 return "<key>".$match[1]."</key>";
165         }
166         return "<code>".$match[1]."</code>";
167 }
168
169 function tryoembed($match){
170         $url = $match[1];
171
172         // Always embed the SSL version
173         $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
174                                 array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
175
176
177         $o = oembed_fetch_url($url);
178
179         if (!is_object($o))
180                 return $match[0];
181
182         if (isset($match[2]))
183                 $o->title = $match[2];
184
185         if ($o->type=="error") return $match[0];
186
187         $html = oembed_format_object($o);
188         return $html;
189
190 }
191
192 // [noparse][i]italic[/i][/noparse] turns into
193 // [noparse][ i ]italic[ /i ][/noparse],
194 // to hide them from parser.
195
196 function bb_spacefy($st) {
197   $whole_match = $st[0];
198   $captured = $st[1];
199   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
200   $new_str = str_replace($captured, $spacefied, $whole_match);
201   return $new_str;
202 }
203
204 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
205 // now turns back and the [noparse] tags are trimed
206 // returning [i]italic[/i]
207
208 function bb_unspacefy_and_trim($st) {
209   $whole_match = $st[0];
210   $captured = $st[1];
211   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
212   return $unspacefied;
213 }
214
215 function bb_find_open_close($s, $open, $close, $occurance = 1) {
216
217         if($occurance < 1)
218                 $occurance = 1;
219
220         $start_pos = -1;
221         for($i = 1; $i <= $occurance; $i++) {
222                 if( $start_pos !== false)
223                         $start_pos = strpos($s, $open, $start_pos + 1);
224         }
225
226         if( $start_pos === false)
227                 return false;
228
229         $end_pos = strpos($s, $close, $start_pos);
230
231         if( $end_pos === false)
232                 return false;
233
234         $res = array( 'start' => $start_pos, 'end' => $end_pos );
235
236         return $res;
237 }
238
239 function get_bb_tag_pos($s, $name, $occurance = 1) {
240
241         if($occurance < 1)
242                 $occurance = 1;
243
244         $start_open = -1;
245         for($i = 1; $i <= $occurance; $i++) {
246                 if( $start_open !== false)
247                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
248         }
249
250         if( $start_open === false)
251                 return false;
252
253         $start_equal = strpos($s, '=', $start_open);
254         $start_close = strpos($s, ']', $start_open);
255
256         if( $start_close === false)
257                 return false;
258
259         $start_close++;
260
261         $end_open = strpos($s, '[/' . $name . ']', $start_close);
262
263         if( $end_open === false)
264                 return false;
265
266         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
267                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
268         if( $start_equal !== false)
269                 $res['start']['equal'] = $start_equal + 1;
270
271         return $res;
272 }
273
274 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
275
276         $string = $s;
277
278         $occurance = 1;
279         $pos = get_bb_tag_pos($string, $name, $occurance);
280         while($pos !== false && $occurance < 1000) {
281
282                 $start = substr($string, 0, $pos['start']['open']);
283                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
284                 $end = substr($string, $pos['end']['close']);
285                 if($end === false)
286                         $end = '';
287
288                 $subject = preg_replace($pattern, $replace, $subject);
289                 $string = $start . $subject . $end;
290
291                 $occurance++;
292                 $pos = get_bb_tag_pos($string, $name, $occurance);
293         }
294
295         return $string;
296 }
297
298 if(! function_exists('bb_extract_images')) {
299 function bb_extract_images($body) {
300
301         $saved_image = array();
302         $orig_body = $body;
303         $new_body = '';
304
305         $cnt = 0;
306         $img_start = strpos($orig_body, '[img');
307         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
308         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
309         while(($img_st_close !== false) && ($img_end !== false)) {
310
311                 $img_st_close++; // make it point to AFTER the closing bracket
312                 $img_end += $img_start;
313
314                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
315                         // This is an embedded image
316
317                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
318                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
319
320                         $cnt++;
321                 }
322                 else
323                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
324
325                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
326
327                 if($orig_body === false) // in case the body ends on a closing image tag
328                         $orig_body = '';
329
330                 $img_start = strpos($orig_body, '[img');
331                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
332                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
333         }
334
335         $new_body = $new_body . $orig_body;
336
337         return array('body' => $new_body, 'images' => $saved_image);
338 }}
339
340 if(! function_exists('bb_replace_images')) {
341 function bb_replace_images($body, $images) {
342
343         $newbody = $body;
344
345         $cnt = 0;
346         foreach ($images as $image) {
347                 // We're depending on the property of 'foreach' (specified on the PHP website) that
348                 // it loops over the array starting from the first element and going sequentially
349                 // to the last element
350                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . t('Image/photo') . '" />', $newbody);
351                 $cnt++;
352         }
353
354         return $newbody;
355 }}
356
357 function bb_ShareAttributes($share, $simplehtml) {
358         $attributes = $share[2];
359
360         $author = "";
361         preg_match("/author='(.*?)'/ism", $attributes, $matches);
362         if ($matches[1] != "")
363                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
364
365         preg_match('/author="(.*?)"/ism', $attributes, $matches);
366         if ($matches[1] != "")
367                 $author = $matches[1];
368
369         $profile = "";
370         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
371         if ($matches[1] != "")
372                 $profile = $matches[1];
373
374         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
375         if ($matches[1] != "")
376                 $profile = $matches[1];
377
378         $avatar = "";
379         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
380         if ($matches[1] != "")
381                 $avatar = $matches[1];
382
383         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
384         if ($matches[1] != "")
385                 $avatar = $matches[1];
386
387         $link = "";
388         preg_match("/link='(.*?)'/ism", $attributes, $matches);
389         if ($matches[1] != "")
390                 $link = $matches[1];
391
392         preg_match('/link="(.*?)"/ism', $attributes, $matches);
393         if ($matches[1] != "")
394                 $link = $matches[1];
395
396         $posted = "";
397
398         $itemcache = get_itemcachepath();
399
400         preg_match("/posted='(.*?)'/ism", $attributes, $matches);
401         if ($matches[1] != "")
402                 $posted = $matches[1];
403
404         preg_match('/posted="(.*?)"/ism', $attributes, $matches);
405         if ($matches[1] != "")
406                 $posted = $matches[1];
407
408         // relative dates only make sense when they aren't cached
409         if ($itemcache == "")
410                 $reldate = (($posted) ? " " . relative_date($posted) : '');
411
412         // We only call this so that a previously unknown contact can be added.
413         // This is important for the function "get_contact_details_by_url".
414         // This function then can fetch an entry from the contact table.
415         get_contact($profile, 0);
416
417         $data = get_contact_details_by_url($profile);
418
419         if (isset($data["name"]) AND ($data["name"] != "") AND isset($data["addr"]) AND ($data["addr"] != ""))
420                 $userid_compact = $data["name"]." (".$data["addr"].")";
421         else
422                 $userid_compact = GetProfileUsername($profile,$author, true);
423
424         if (isset($data["addr"]) AND ($data["addr"] != ""))
425                 $userid = $data["addr"];
426         else
427                 $userid = GetProfileUsername($profile,$author, false);
428
429         if (isset($data["name"]) AND ($data["name"] != ""))
430                 $author = $data["name"];
431
432         if (isset($data["micro"]) AND ($data["micro"] != ""))
433                 $avatar = $data["micro"];
434
435         $preshare = trim($share[1]);
436
437         if ($preshare != "")
438                 $preshare .= "<br /><br />";
439
440         switch ($simplehtml) {
441                 case 1:
442                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$share[3]."«";
443                         break;
444                 case 2:
445                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
446                         break;
447                 case 3: // Diaspora
448                         $headline .= '<b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b><br />';
449
450                         $text = trim($share[1]);
451
452                         if ($text != "")
453                                 $text .= "<hr />";
454
455                         if (substr(normalise_link($link), 0, 19) != "http://twitter.com/") {
456                                 $text .= $headline.'<blockquote>'.trim($share[3])."</blockquote><br />";
457
458                                 if ($link != "")
459                                         $text .= '<br /><a href="'.$link.'">[l]</a>';
460                         } else
461                                 $text .= '<br /><a href="'.$link.'">'.$link.'</a>';
462
463                         break;
464                 case 4:
465                         $headline = '<div class="shared_header">';
466                         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
467                         $headline .= sprintf(t('<a href="%1$s" target="_blank">%2$s</a> %3$s'), $link, $userid, $posted);
468                         $headline .= ":</b></span></div>";
469
470                         $text = trim($share[1]);
471
472                         if ($text != "")
473                                 $text .= "<hr />";
474
475                         $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
476
477                         break;
478                 case 5:
479                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
480                         break;
481                 case 6: // app.net
482                         $text = $preshare."&gt;&gt; @".$userid_compact.": <br />".$share[3];
483                         break;
484                 case 7: // statusnet/GNU Social
485                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8')." @".$userid_compact.": ".$share[3];
486                         break;
487                 case 8: // twitter
488                         $text = $preshare."RT @".$userid_compact.": ".$share[3];
489                         break;
490                 case 9: // Google+/Facebook
491                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
492
493                         if ($link != "")
494                                 $text .= "<br /><br />".$link;
495                         break;
496                 default:
497                         $text = trim($share[1])."\n";
498
499                         $avatar = proxy_url($avatar, false, PROXY_SIZE_THUMB);
500
501                         $tpl = get_markup_template('shared_content.tpl');
502                         $text .= replace_macros($tpl,
503                                         array(
504                                                 '$profile' => $profile,
505                                                 '$avatar' => $avatar,
506                                                 '$author' => $author,
507                                                 '$link' => $link,
508                                                 '$posted' => $posted,
509                                                 '$reldate' => $reldate,
510                                                 '$content' => trim($share[3])
511                                         )
512                                 );
513                         break;
514         }
515         return($text);
516 }
517
518 function GetProfileUsername($profile, $username, $compact = false, $getnetwork = false) {
519
520         $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
521         if ($twitter != $profile) {
522                 if ($getnetwork)
523                         return(NETWORK_TWITTER);
524                 elseif ($compact)
525                         return($twitter);
526                 else
527                         return($username." (".$twitter.")");
528         }
529
530         $appnet = preg_replace("=https?://alpha.app.net/(.*)=ism", "$1@alpha.app.net", $profile);
531         if ($appnet != $profile) {
532                 if ($getnetwork)
533                         return(NETWORK_APPNET);
534                 elseif ($compact)
535                         return($appnet);
536                 else
537                         return($username." (".$appnet.")");
538         }
539
540         $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
541         if ($gplus != $profile) {
542                 if ($getnetwork)
543                         return(NETWORK_GPLUS);
544                 elseif ($compact)
545                         return($gplususername." (".$username.")");
546                 else
547                         return($username." (".$gplus.")");
548         }
549
550         $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
551         if ($friendica != $profile) {
552                 if ($getnetwork)
553                         return(NETWORK_DFRN);
554                 elseif ($compact)
555                         return($friendica);
556                 else
557                         return($username." (".$friendica.")");
558         }
559
560         $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
561         if ($diaspora != $profile) {
562                 if ($getnetwork)
563                         return(NETWORK_DIASPORA);
564                 elseif ($compact)
565                         return($diaspora);
566                 else
567                         return($username." (".$diaspora.")");
568         }
569
570         $red = preg_replace("=https?://(.*)/channel/(.*)=ism", "$2@$1", $profile);
571         if ($red != $profile) {
572                 if ($getnetwork)
573                         // red is identified as Diaspora - friendica can't connect directly to it
574                         return(NETWORK_DIASPORA);
575                 elseif ($compact)
576                         return($red);
577                 else
578                         return($username." (".$red.")");
579         }
580
581         $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
582         if ($StatusnetHost != $profile) {
583                 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
584                 if ($StatusnetUser != $profile) {
585                         $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
586                         $user = json_decode($UserData);
587                         if ($user) {
588                                 if ($getnetwork)
589                                         return(NETWORK_STATUSNET);
590                                 elseif ($compact)
591                                         return($user->screen_name."@".$StatusnetHost);
592                                 else
593                                         return($username." (".$user->screen_name."@".$StatusnetHost.")");
594                         }
595                 }
596         }
597
598         // pumpio (http://host.name/user)
599         $rest = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$3", $profile);
600         if ($rest == "") {
601                 $pumpio = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$2@$1", $profile);
602                 if ($pumpio != $profile) {
603                         if ($getnetwork)
604                                 return(NETWORK_PUMPIO);
605                         elseif ($compact)
606                                 return($pumpio);
607                         else
608                                 return($username." (".$pumpio.")");
609                 }
610         }
611
612         return($username);
613 }
614
615 function bb_DiasporaLinks($match) {
616         return "[url=".App::get_baseurl()."/display/".$match[1]."]".$match[2]."[/url]";
617 }
618
619 function bb_RemovePictureLinks($match) {
620         $text = Cache::get($match[1]);
621
622         if(is_null($text)){
623                 $a = get_app();
624
625                 $stamp1 = microtime(true);
626
627                 $ch = @curl_init($match[1]);
628                 @curl_setopt($ch, CURLOPT_NOBODY, true);
629                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
630                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
631                 @curl_exec($ch);
632                 $curl_info = @curl_getinfo($ch);
633
634                 $a->save_timestamp($stamp1, "network");
635
636                 if (substr($curl_info["content_type"], 0, 6) == "image/")
637                         $text = "[url=".$match[1]."]".$match[1]."[/url]";
638                 else {
639                         $text = "[url=".$match[2]."]".$match[2]."[/url]";
640
641                         // if its not a picture then look if its a page that contains a picture link
642                         require_once("include/network.php");
643
644                         $body = fetch_url($match[1]);
645
646                         $doc = new DOMDocument();
647                         @$doc->loadHTML($body);
648                         $xpath = new DomXPath($doc);
649                         $list = $xpath->query("//meta[@name]");
650                         foreach ($list as $node) {
651                                 $attr = array();
652
653                                 if ($node->attributes->length)
654                                         foreach ($node->attributes as $attribute)
655                                                 $attr[$attribute->name] = $attribute->value;
656
657                                 if (strtolower($attr["name"]) == "twitter:image")
658                                         $text = "[url=".$attr["content"]."]".$attr["content"]."[/url]";
659                         }
660                 }
661                 Cache::set($match[1],$text);
662         }
663         return($text);
664 }
665
666 function bb_expand_links($match) {
667         if (($match[3] == "") OR ($match[2] == $match[3]) OR stristr($match[2], $match[3]))
668                 return ($match[1]."[url]".$match[2]."[/url]");
669         else
670                 return ($match[1].$match[3]." [url]".$match[2]."[/url]");
671 }
672
673 function bb_CleanPictureLinksSub($match) {
674         $text = Cache::get($match[1]);
675
676         if(is_null($text)){
677                 $a = get_app();
678
679                 $stamp1 = microtime(true);
680
681                 $ch = @curl_init($match[1]);
682                 @curl_setopt($ch, CURLOPT_NOBODY, true);
683                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
684                 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
685                 @curl_exec($ch);
686                 $curl_info = @curl_getinfo($ch);
687
688                 $a->save_timestamp($stamp1, "network");
689
690                 // if its a link to a picture then embed this picture
691                 if (substr($curl_info["content_type"], 0, 6) == "image/")
692                         $text = "[img]".$match[1]."[/img]";
693                 else {
694                         $text = "[img]".$match[2]."[/img]";
695
696                         // if its not a picture then look if its a page that contains a picture link
697                         require_once("include/network.php");
698
699                         $body = fetch_url($match[1]);
700
701                         $doc = new DOMDocument();
702                         @$doc->loadHTML($body);
703                         $xpath = new DomXPath($doc);
704                         $list = $xpath->query("//meta[@name]");
705                         foreach ($list as $node) {
706                                 $attr = array();
707
708                                 if ($node->attributes->length)
709                                         foreach ($node->attributes as $attribute)
710                                                 $attr[$attribute->name] = $attribute->value;
711
712                                 if (strtolower($attr["name"]) == "twitter:image")
713                                         $text = "[img]".$attr["content"]."[/img]";
714                         }
715                 }
716                 Cache::set($match[1],$text);
717         }
718         return($text);
719 }
720
721 function bb_CleanPictureLinks($text) {
722         $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_CleanPictureLinksSub', $text);
723         return ($text);
724 }
725
726 function bb_highlight($match) {
727         if(in_array(strtolower($match[1]),['php','css','mysql','sql','abap','diff','html','perl','ruby',
728                 'vbscript','avrc','dtd','java','xml','cpp','python','javascript','js','sh']))
729                 return text_highlight($match[2],strtolower($match[1]));
730         return $match[0];
731 }
732
733         // BBcode 2 HTML was written by WAY2WEB.net
734         // extended to work with Mistpark/Friendica - Mike Macgirvin
735
736 function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false) {
737
738         $a = get_app();
739
740         // Hide all [noparse] contained bbtags by spacefying them
741         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
742
743         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
744         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
745         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
746
747         // Remove the abstract element. It is a non visible element.
748         $Text = remove_abstract($Text);
749
750         // Move all spaces out of the tags
751         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
752         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
753
754         // Extract the private images which use data urls since preg has issues with
755         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
756         // in after we've done all the regex matching. We cannot use any preg functions to do this.
757
758         $extracted = bb_extract_images($Text);
759         $Text = $extracted['body'];
760         $saved_image = $extracted['images'];
761
762         // If we find any event code, turn it into an event.
763         // After we're finished processing the bbcode we'll
764         // replace all of the event code with a reformatted version.
765
766         $ev = bbtoevent($Text);
767
768         // Replace any html brackets with HTML Entities to prevent executing HTML or script
769         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
770
771         $Text = str_replace("<", "&lt;", $Text);
772         $Text = str_replace(">", "&gt;", $Text);
773
774         // remove some newlines before the general conversion
775         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
776         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
777
778         $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
779         $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
780
781         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
782         if (!$tryoembed)
783                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
784
785         // Check for [code] text here, before the linefeeds are messed with.
786         // The highlighter will unescape and re-escape the content.
787         if (strpos($Text,'[code=') !== false) {
788                 $Text = preg_replace_callback("/\[code=(.*?)\](.*?)\[\/code\]/ism", 'bb_highlight', $Text);
789         }
790         // Convert new line chars to html <br /> tags
791
792         // nlbr seems to be hopelessly messed up
793         //      $Text = nl2br($Text);
794
795         // We'll emulate it.
796
797         $Text = trim($Text);
798         $Text = str_replace("\r\n","\n", $Text);
799
800         // removing multiplicated newlines
801         if (get_config("system", "remove_multiplicated_lines")) {
802                 $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",
803                                 "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n");
804                 $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
805                                 "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]");
806                 do {
807                         $oldtext = $Text;
808                         $Text = str_replace($search, $replace, $Text);
809                 } while ($oldtext != $Text);
810         }
811
812         // Handle attached links or videos
813         $Text = bb_attachment($Text, $simplehtml, $tryoembed);
814
815         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
816
817         if($preserve_nl)
818                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
819
820         // Set up the parameters for a URL search string
821         $URLSearchString = "^\[\]";
822         // Set up the parameters for a MAIL search string
823         $MAILSearchString = $URLSearchString;
824
825         // Remove all hashtag addresses
826         if ((!$tryoembed OR $simplehtml) AND !in_array($simplehtml, array(3, 7)))
827                 $Text = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $Text);
828         elseif ($simplehtml == 3)
829                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
830                         '$1<a href="$2">$3</a>',
831                         $Text);
832         elseif ($simplehtml == 7)
833                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
834                         '$1<span class="vcard"><a href="$2" class="url" title="$3"><span class="fn nickname mention">$3</span></a></span>',
835                         $Text);
836         elseif (!$simplehtml)
837                 $Text = preg_replace("/([@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
838                         '$1<a href="$2" class="userinfo mention" title="$3">$3</a>',
839                         $Text);
840
841         // Bookmarks in red - will be converted to bookmarks in friendica
842         $Text = preg_replace("/#\^\[url\]([$URLSearchString]*)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $Text);
843         $Text = preg_replace("/#\^\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $Text);
844         $Text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
845                                 "[bookmark=$1]$2[/bookmark]", $Text);
846
847         if (in_array($simplehtml, array(2, 6, 7, 8, 9))) {
848                 $Text = preg_replace_callback("/([^#@])\[url\=([^\]]*)\](.*?)\[\/url\]/ism","bb_expand_links",$Text);
849                 //$Text = preg_replace("/[^#@]\[url\=([^\]]*)\](.*?)\[\/url\]/ism",' $2 [url]$1[/url]',$Text);
850                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",' $2 [url]$1[/url]',$Text);
851         }
852
853         if ($simplehtml == 5)
854                 $Text = preg_replace("/[^#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[url]$1[/url]', $Text);
855
856         // Perform URL Search
857         if ($tryoembed)
858                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'tryoembed',$Text);
859
860         if ($simplehtml == 5)
861                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url]$1[/url]',$Text);
862         else
863                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
864
865         // Handle Diaspora posts
866         $Text = preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi", 'bb_DiasporaLinks', $Text);
867
868         // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
869 //      if ($simplehtml != 7) {
870                 if (!$forplaintext)
871                         $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="_blank">$2</a>', $Text);
872                 else {
873                         $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism"," $1 ",$Text);
874                         $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
875                 }
876 //      }
877
878         if ($tryoembed)
879                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
880
881         $Text = preg_replace("/([#])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
882                                 '$1<a href="$2" class="tag" title="$3">$3</a>', $Text);
883
884         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $Text);
885         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
886         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
887
888         // Red compatibility, though the link can't be authenticated on Friendica
889         $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
890
891
892         // we may need to restrict this further if it picks up too many strays
893         // link acct:user@host to a webfinger profile redirector
894
895         $Text = preg_replace('/acct:([^@]+)@((?!\-)(?:[a-zA-Z\d\-]{0,62}[a-zA-Z\d]\.){1,126}(?!\d+)[a-zA-Z\d]{1,63})/', '<a href="' . App::get_baseurl() . '/acctlink?addr=$1@$2" target="extlink">acct:$1@$2</a>',$Text);
896
897         // Perform MAIL Search
898         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
899         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
900
901         // leave open the posibility of [map=something]
902         // this is replaced in prepare_body() which has knowledge of the item location
903
904         if (strpos($Text,'[/map]') !== false) {
905                 $Text = preg_replace_callback("/\[map\](.*?)\[\/map\]/ism", 'bb_map_location', $Text);
906         }
907         if (strpos($Text,'[map=') !== false) {
908                 $Text = preg_replace_callback("/\[map=(.*?)\]/ism", 'bb_map_coords', $Text);
909         }
910         if (strpos($Text,'[map]') !== false) {
911                 $Text = preg_replace("/\[map\]/", '<div class="map"></div>', $Text);
912         }
913
914         // Check for headers
915         $Text = preg_replace("(\[h1\](.*?)\[\/h1\])ism",'<h1>$1</h1>',$Text);
916         $Text = preg_replace("(\[h2\](.*?)\[\/h2\])ism",'<h2>$1</h2>',$Text);
917         $Text = preg_replace("(\[h3\](.*?)\[\/h3\])ism",'<h3>$1</h3>',$Text);
918         $Text = preg_replace("(\[h4\](.*?)\[\/h4\])ism",'<h4>$1</h4>',$Text);
919         $Text = preg_replace("(\[h5\](.*?)\[\/h5\])ism",'<h5>$1</h5>',$Text);
920         $Text = preg_replace("(\[h6\](.*?)\[\/h6\])ism",'<h6>$1</h6>',$Text);
921
922         // Check for paragraph
923         $Text = preg_replace("(\[p\](.*?)\[\/p\])ism",'<p>$1</p>',$Text);
924
925         // Check for bold text
926         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
927
928         // Check for Italics text
929         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
930
931         // Check for Underline text
932         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
933
934         // Check for strike-through text
935         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
936
937         // Check for over-line text
938         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
939
940         // Check for colored text
941         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
942
943         // Check for sized text
944         // [size=50] --> font-size: 50px (with the unit).
945         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px; line-height: initial;\">$2</span>",$Text);
946         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1; line-height: initial;\">$2</span>",$Text);
947
948         // Check for centered text
949         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
950
951         // Check for list text
952         $Text = str_replace("[*]", "<li>", $Text);
953
954         // Check for style sheet commands
955         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
956
957         // Check for CSS classes
958         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
959
960         // handle nested lists
961         $endlessloop = 0;
962
963         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
964                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
965                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
966                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
967                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
968                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
969                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
970                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
971                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
972                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
973                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
974                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
975                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
976                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
977         }
978
979         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
980         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
981         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
982         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
983
984         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
985         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
986
987         $Text = str_replace('[hr]','<hr />', $Text);
988
989         // This is actually executed in prepare_body()
990
991         $Text = str_replace('[nosmile]','',$Text);
992
993         // Check for font change text
994         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
995
996         // Declare the format for [code] layout
997
998 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
999
1000         $CodeLayout = '<code>$1</code>';
1001         // Check for [code] text
1002         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
1003
1004         // Declare the format for [spoiler] layout
1005         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
1006
1007         // Check for [spoiler] text
1008         // handle nested quotes
1009         $endlessloop = 0;
1010         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
1011                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
1012
1013         // Check for [spoiler=Author] text
1014
1015         $t_wrote = t('$1 wrote:');
1016
1017         // handle nested quotes
1018         $endlessloop = 0;
1019         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
1020                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
1021                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
1022                                      $Text);
1023
1024         // Declare the format for [quote] layout
1025         $QuoteLayout = '<blockquote>$1</blockquote>';
1026
1027         // Check for [quote] text
1028         // handle nested quotes
1029         $endlessloop = 0;
1030         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
1031                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
1032
1033         // Check for [quote=Author] text
1034
1035         $t_wrote = t('$1 wrote:');
1036
1037         // handle nested quotes
1038         $endlessloop = 0;
1039         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
1040                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
1041                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
1042                                      $Text);
1043
1044
1045         // [img=widthxheight]image source[/img]
1046         $Text = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", 'bb_PictureCacheExt', $Text);
1047
1048         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
1049         $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
1050
1051         // Images
1052         // [img]pathtoimage[/img]
1053         $Text = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'bb_PictureCache', $Text);
1054
1055         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1056         $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1057
1058         // Shared content
1059         $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
1060                 function ($match) use ($simplehtml){
1061                         return(bb_ShareAttributes($match, $simplehtml));
1062                 },$Text);
1063
1064         $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism",'<br/><img src="' .App::get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . t('Encrypted content') . '" /><br />', $Text);
1065         $Text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism",'<br/><img src="' .App::get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
1066         //$Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism",'<br/><img src="' .App::get_baseurl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
1067
1068
1069         // Try to Oembed
1070         if ($tryoembed) {
1071                 $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);
1072                 $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);
1073
1074                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
1075                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
1076         } else {
1077                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
1078                                         '<a href="$1" target="_blank">$1</a>', $Text);
1079                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
1080                                         '<a href="$1" target="_blank">$1</a>', $Text);
1081         }
1082
1083         // html5 video and audio
1084
1085
1086         if ($tryoembed)
1087                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
1088         else
1089                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
1090
1091         // Youtube extensions
1092         if ($tryoembed) {
1093                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1094                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1095                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
1096         }
1097
1098         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1099         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1100         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1101
1102         if ($tryoembed)
1103                 $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);
1104         else
1105                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1106                                         '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $Text);
1107
1108         if ($tryoembed) {
1109                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1110                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1111         }
1112
1113         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1114         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1115
1116         if ($tryoembed)
1117                 $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);
1118         else
1119                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1120                                         '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $Text);
1121
1122 //      $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);
1123
1124         // oembed tag
1125         $Text = oembed_bbcode2html($Text);
1126
1127         // Avoid triple linefeeds through oembed
1128         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
1129
1130         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1131         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1132         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1133         // start which is always required). Allow desc with a missing summary for compatibility.
1134
1135         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
1136                 $sub = format_event_html($ev, $simplehtml);
1137
1138                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
1139                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
1140                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
1141                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
1142                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
1143                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
1144                 $Text = preg_replace("/\[event\-id\](.*?)\[\/event\-id\]/ism",'',$Text);
1145         }
1146
1147
1148         //replace oneliner <code> with <key>
1149         $Text = preg_replace_callback("|(?!<br[^>]*>)<code>([^<]*)</code>(?!<br[^>]*>)|ism", 'bb_onelinecode_cb', $Text);
1150
1151         // Unhide all [noparse] contained bbtags unspacefying them
1152         // and triming the [noparse] tag.
1153
1154         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
1155         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
1156         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
1157
1158
1159         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
1160         $Text = preg_replace('/\&\#039\;/','\'',$Text);
1161         $Text = preg_replace('/\&quot\;/','"',$Text);
1162
1163         // fix any escaped ampersands that may have been converted into links
1164         $Text = preg_replace('/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism', '<$1$2=$3&$4>', $Text);
1165
1166         // sanitizes src attributes (http and redir URLs for displaying in a web page, cid used for inline images in emails)
1167         static $allowed_src_protocols = array('http', 'redir', 'cid');
1168         $Text = preg_replace('#<([^>]*?)(src)="(?!' . implode('|', $allowed_src_protocols) . ')(.*?)"(.*?)>#ism',
1169                              '<$1$2=""$4 class="invalid-src" title="' . t('Invalid source protocol') . '">', $Text);
1170
1171         // sanitize href attributes (only whitelisted protocols URLs)
1172         // default value for backward compatibility
1173         $allowed_link_protocols = Config::get('system', 'allowed_link_protocols', array('ftp', 'mailto', 'gopher', 'cid'));
1174
1175         // Always allowed protocol even if config isn't set or not including it
1176         $allowed_link_protocols[] = 'http';
1177
1178         $regex = '#<([^>]*?)(href)="(?!' . implode('|', $allowed_link_protocols) . ')(.*?)"(.*?)>#ism';
1179         $Text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 class="invalid-href" title="' . t('Invalid link protocol') . '">', $Text);
1180
1181         if($saved_image) {
1182                 $Text = bb_replace_images($Text, $saved_image);
1183         }
1184
1185         // Clean up the HTML by loading and saving the HTML with the DOM.
1186         // Bad structured html can break a whole page.
1187         // For performance reasons do it only with ativated item cache or at export.
1188         if (!$tryoembed OR (get_itemcachepath() != "")) {
1189                 $doc = new DOMDocument();
1190                 $doc->preserveWhiteSpace = false;
1191
1192                 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1193
1194                 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1195                 $encoding = '<?xml encoding="UTF-8">';
1196                 @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
1197                 $doc->encoding = 'UTF-8';
1198                 $Text = $doc->saveHTML();
1199                 $Text = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $Text);
1200
1201                 $Text = str_replace('<br></li>','</li>', $Text);
1202
1203                 //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1204         }
1205
1206         // Clean up some useless linebreaks in lists
1207         //$Text = str_replace('<br /><ul','<ul ', $Text);
1208         //$Text = str_replace('</ul><br />','</ul>', $Text);
1209         //$Text = str_replace('</li><br />','</li>', $Text);
1210         //$Text = str_replace('<br /><li>','<li>', $Text);
1211         //      $Text = str_replace('<br /><ul','<ul ', $Text);
1212
1213         call_hooks('bbcode',$Text);
1214
1215         return trim($Text);
1216 }
1217
1218 /**
1219  * @brief Removes the "abstract" element from the text
1220  *
1221  * @param string $text The text with BBCode
1222  * @return string The same text - but without "abstract" element
1223  */
1224 function remove_abstract($text) {
1225         $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
1226         $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
1227
1228         return $text;
1229 }
1230
1231 /**
1232  * @brief Returns the value of the "abstract" element
1233  *
1234  * @param string $text The text that maybe contains the element
1235  * @param string $addon The addon for which the abstract is meant for
1236  * @return string The abstract
1237  */
1238 function fetch_abstract($text, $addon = "") {
1239         $abstract = "";
1240         $abstracts = array();
1241         $addon = strtolower($addon);
1242
1243         if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))
1244                 foreach ($results AS $result)
1245                         $abstracts[strtolower($result[1])] = $result[2];
1246
1247         if (isset($abstracts[$addon]))
1248                 $abstract = $abstracts[$addon];
1249
1250         if ($abstract == "")
1251                 if (preg_match("/\[abstract\](.*?)\[\/abstract\]/ism",$text, $result))
1252                         $abstract = $result[1];
1253
1254         return $abstract;
1255 }
1256 ?>