include/bbcode.php

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