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 (only relative redir URIs or http URLs)
1167         $Text = preg_replace('#<([^>]*?)(src)="(?!http|redir)(.*?)"(.*?)>#ism', '<$1$2=""$4 class="invalid-src" title="' . t('Invalid source protocol') . '">', $Text);
1168
1169         // sanitize href attributes (only whitelisted protocols URLs)
1170         // default value for backward compatibility
1171         $allowed_link_protocols = Config::get('system', 'allowed_link_protocols', array('ftp', 'mailto', 'gopher', 'cid'));
1172
1173         // Always allowed protocol even if config isn't set or not including it
1174         $allowed_link_protocols[] = 'http';
1175
1176         $regex = '#<([^>]*?)(href)="(?!' . implode('|', $allowed_link_protocols) . ')(.*?)"(.*?)>#ism';
1177         $Text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 class="invalid-href" title="' . t('Invalid link protocol') . '">', $Text);
1178
1179         if($saved_image) {
1180                 $Text = bb_replace_images($Text, $saved_image);
1181         }
1182
1183         // Clean up the HTML by loading and saving the HTML with the DOM.
1184         // Bad structured html can break a whole page.
1185         // For performance reasons do it only with ativated item cache or at export.
1186         if (!$tryoembed OR (get_itemcachepath() != "")) {
1187                 $doc = new DOMDocument();
1188                 $doc->preserveWhiteSpace = false;
1189
1190                 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1191
1192                 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1193                 $encoding = '<?xml encoding="UTF-8">';
1194                 @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
1195                 $doc->encoding = 'UTF-8';
1196                 $Text = $doc->saveHTML();
1197                 $Text = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $Text);
1198
1199                 $Text = str_replace('<br></li>','</li>', $Text);
1200
1201                 //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1202         }
1203
1204         // Clean up some useless linebreaks in lists
1205         //$Text = str_replace('<br /><ul','<ul ', $Text);
1206         //$Text = str_replace('</ul><br />','</ul>', $Text);
1207         //$Text = str_replace('</li><br />','</li>', $Text);
1208         //$Text = str_replace('<br /><li>','<li>', $Text);
1209         //      $Text = str_replace('<br /><ul','<ul ', $Text);
1210
1211         call_hooks('bbcode',$Text);
1212
1213         return trim($Text);
1214 }
1215
1216 /**
1217  * @brief Removes the "abstract" element from the text
1218  *
1219  * @param string $text The text with BBCode
1220  * @return string The same text - but without "abstract" element
1221  */
1222 function remove_abstract($text) {
1223         $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
1224         $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
1225
1226         return $text;
1227 }
1228
1229 /**
1230  * @brief Returns the value of the "abstract" element
1231  *
1232  * @param string $text The text that maybe contains the element
1233  * @param string $addon The addon for which the abstract is meant for
1234  * @return string The abstract
1235  */
1236 function fetch_abstract($text, $addon = "") {
1237         $abstract = "";
1238         $abstracts = array();
1239         $addon = strtolower($addon);
1240
1241         if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))
1242                 foreach ($results AS $result)
1243                         $abstracts[strtolower($result[1])] = $result[2];
1244
1245         if (isset($abstracts[$addon]))
1246                 $abstract = $abstracts[$addon];
1247
1248         if ($abstract == "")
1249                 if (preg_match("/\[abstract\](.*?)\[\/abstract\]/ism",$text, $result))
1250                         $abstract = $result[1];
1251
1252         return $abstract;
1253 }
1254 ?>