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         if (!$data)
  38                 return $Text;
  39
  40         if (isset($data["title"])) {
  41                 $data["title"] = strip_tags($data["title"]);
  42                 $data["title"] = str_replace(array("http://", "https://"), "", $data["title"]);
  43         }
  44
  45         if (((strpos($data["text"], "[img=") !== false) OR (strpos($data["text"], "[img]") !== false)) AND ($data["image"] != "")) {
  46                 $data["preview"] = $data["image"];
  47                 $data["image"] = "";
  48         }
  49
  50         if ($simplehtml == 7) {
  51                 $title2 = $data["title"];
  52
  53                 $test1 = trim(html_entity_decode($data["text"],ENT_QUOTES,'UTF-8'));
  54                 $test2 = trim(html_entity_decode($data["title"],ENT_QUOTES,'UTF-8'));
  55
  56                 // If the link description is similar to the text above then don't add the link description
  57                 if (($data["title"] != "") AND ((strpos($test1,$test2) !== false) OR
  58                         (similar_text($test1,$test2) / strlen($data["title"])) > 0.9))
  59                         $title2 = $data["url"];
  60                 $text = sprintf('<a href="%s" title="%s" class="attachment thumbnail" rel="nofollow external">%s</a><br />',
  61                                 $data["url"], $data["title"], $title2);
  62         } elseif (($simplehtml != 4) AND ($simplehtml != 0))
  63                 $text = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
  64         else {
  65                 $text = sprintf('<span class="type-%s">', $data["type"]);
  66
  67                 $bookmark = array(sprintf('[bookmark=%s]%s[/bookmark]', $data["url"], $data["title"]), $data["url"], $data["title"]);
  68                 if ($tryoembed)
  69                         $oembed = tryoembed($bookmark);
  70                 else
  71                         $oembed = $bookmark[0];
  72
  73                 if (strstr(strtolower($oembed), "<iframe "))
  74                         $text = $oembed;
  75                 else {
  76                         if (($data["image"] != "") AND !strstr(strtolower($oembed), "<img "))
  77                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
  78                         elseif (($data["preview"] != "") AND !strstr(strtolower($oembed), "<img "))
  79                                 $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
  80
  81                         if (($data["type"] == "photo") AND ($data["url"] != "") AND ($data["image"] != ""))
  82                                 $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"]);
  83                         else
  84                                 $text .= $oembed;
  85
  86                         if (trim($data["description"]) != "")
  87                                 $text .= sprintf('<blockquote>%s</blockquote></span>', trim(bbcode($data["description"])));
  88                 }
  89         }
  90         return $data["text"].$text.$data["after"];
  91 }
  92
  93 function bb_remove_share_information($Text, $plaintext = false, $nolink = false) {
  94
  95         $data = get_attachment_data($Text);
  96
  97         if (!$data)
  98                 return $Text;
  99
 100         if ($nolink)
 101                 return $data["text"].$data["after"];
 102
 103         $title = htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false);
 104         $text = htmlentities($data["text"], ENT_QUOTES, 'UTF-8', false);
 105         if ($plaintext OR (($title != "") AND strstr($text, $title)))
 106                 $data["title"] = $data["url"];
 107         elseif (($text != "") AND strstr($title, $text)) {
 108                 $data["text"] = $data["title"];
 109                 $data["title"] = $data["url"];
 110         }
 111
 112         if (($data["text"] == "") AND ($data["title"] != "") AND ($data["url"] == ""))
 113                 return $data["title"].$data["after"];
 114
 115         // If the link already is included in the post, don't add it again
 116         if (($data["url"] != "") AND strpos($data["text"], $data["url"]))
 117                 return $data["text"].$data["after"];
 118
 119         $text = $data["text"];
 120
 121         if (($data["url"] != "") AND ($data["title"] != ""))
 122                 $text .= "\n[url=".$data["url"]."]".$data["title"]."[/url]";
 123         elseif (($data["url"] != ""))
 124                 $text .= "\n".$data["url"];
 125
 126         return $text."\n".$data["after"];
 127 }
 128
 129 function bb_cleanstyle($st) {
 130   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
 131 }
 132
 133 function bb_cleanclass($st) {
 134   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
 135 }
 136
 137 function cleancss($input) {
 138
 139         $cleaned = "";
 140
 141         $input = strtolower($input);
 142
 143         for ($i = 0; $i < strlen($input); $i++) {
 144                 $char = substr($input, $i, 1);
 145
 146                 if (($char >= "a") and ($char <= "z"))
 147                         $cleaned .= $char;
 148
 149                 if (!(strpos(" #;:0123456789-_", $char) === false))
 150                         $cleaned .= $char;
 151         }
 152
 153         return($cleaned);
 154 }
 155
 156 function stripcode_br_cb($s) {
 157         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
 158 }
 159
 160 function bb_onelinecode_cb($match) {
 161         if (strpos($match[1],"<br>")===false){
 162                 return "<key>".$match[1]."</key>";
 163         }
 164         return "<code>".$match[1]."</code>";
 165 }
 166
 167 function tryoembed($match){
 168         $url = $match[1];
 169
 170         // Always embed the SSL version
 171         $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
 172                                 array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
 173
 174
 175         $o = oembed_fetch_url($url);
 176
 177         if (!is_object($o))
 178                 return $match[0];
 179
 180         if (isset($match[2]))
 181                 $o->title = $match[2];
 182
 183         if ($o->type=="error") return $match[0];
 184
 185         $html = oembed_format_object($o);
 186         return $html;
 187
 188 }
 189
 190 // [noparse][i]italic[/i][/noparse] turns into
 191 // [noparse][ i ]italic[ /i ][/noparse],
 192 // to hide them from parser.
 193
 194 function bb_spacefy($st) {
 195   $whole_match = $st[0];
 196   $captured = $st[1];
 197   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
 198   $new_str = str_replace($captured, $spacefied, $whole_match);
 199   return $new_str;
 200 }
 201
 202 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
 203 // now turns back and the [noparse] tags are trimed
 204 // returning [i]italic[/i]
 205
 206 function bb_unspacefy_and_trim($st) {
 207   $whole_match = $st[0];
 208   $captured = $st[1];
 209   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
 210   return $unspacefied;
 211 }
 212
 213 function bb_find_open_close($s, $open, $close, $occurance = 1) {
 214
 215         if($occurance < 1)
 216                 $occurance = 1;
 217
 218         $start_pos = -1;
 219         for($i = 1; $i <= $occurance; $i++) {
 220                 if( $start_pos !== false)
 221                         $start_pos = strpos($s, $open, $start_pos + 1);
 222         }
 223
 224         if( $start_pos === false)
 225                 return false;
 226
 227         $end_pos = strpos($s, $close, $start_pos);
 228
 229         if( $end_pos === false)
 230                 return false;
 231
 232         $res = array( 'start' => $start_pos, 'end' => $end_pos );
 233
 234         return $res;
 235 }
 236
 237 function get_bb_tag_pos($s, $name, $occurance = 1) {
 238
 239         if($occurance < 1)
 240                 $occurance = 1;
 241
 242         $start_open = -1;
 243         for($i = 1; $i <= $occurance; $i++) {
 244                 if( $start_open !== false)
 245                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
 246         }
 247
 248         if( $start_open === false)
 249                 return false;
 250
 251         $start_equal = strpos($s, '=', $start_open);
 252         $start_close = strpos($s, ']', $start_open);
 253
 254         if( $start_close === false)
 255                 return false;
 256
 257         $start_close++;
 258
 259         $end_open = strpos($s, '[/' . $name . ']', $start_close);
 260
 261         if( $end_open === false)
 262                 return false;
 263
 264         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
 265                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
 266         if( $start_equal !== false)
 267                 $res['start']['equal'] = $start_equal + 1;
 268
 269         return $res;
 270 }
 271
 272 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
 273
 274         $string = $s;
 275
 276         $occurance = 1;
 277         $pos = get_bb_tag_pos($string, $name, $occurance);
 278         while($pos !== false && $occurance < 1000) {
 279
 280                 $start = substr($string, 0, $pos['start']['open']);
 281                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
 282                 $end = substr($string, $pos['end']['close']);
 283                 if($end === false)
 284                         $end = '';
 285
 286                 $subject = preg_replace($pattern, $replace, $subject);
 287                 $string = $start . $subject . $end;
 288
 289                 $occurance++;
 290                 $pos = get_bb_tag_pos($string, $name, $occurance);
 291         }
 292
 293         return $string;
 294 }
 295
 296 if(! function_exists('bb_extract_images')) {
 297 function bb_extract_images($body) {
 298
 299         $saved_image = array();
 300         $orig_body = $body;
 301         $new_body = '';
 302
 303         $cnt = 0;
 304         $img_start = strpos($orig_body, '[img');
 305         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 306         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 307         while(($img_st_close !== false) && ($img_end !== false)) {
 308
 309                 $img_st_close++; // make it point to AFTER the closing bracket
 310                 $img_end += $img_start;
 311
 312                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 313                         // This is an embedded image
 314
 315                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
 316                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
 317
 318                         $cnt++;
 319                 }
 320                 else
 321                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
 322
 323                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
 324
 325                 if($orig_body === false) // in case the body ends on a closing image tag
 326                         $orig_body = '';
 327
 328                 $img_start = strpos($orig_body, '[img');
 329                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 330                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 331         }
 332
 333         $new_body = $new_body . $orig_body;
 334
 335         return array('body' => $new_body, 'images' => $saved_image);
 336 }}
 337
 338 if(! function_exists('bb_replace_images')) {
 339 function bb_replace_images($body, $images) {
 340
 341         $newbody = $body;
 342
 343         $cnt = 0;
 344         foreach($images as $image) {
 345                 // We're depending on the property of 'foreach' (specified on the PHP website) that
 346                 // it loops over the array starting from the first element and going sequentially
 347                 // to the last element
 348                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . t('Image/photo') . '" />', $newbody);
 349                 $cnt++;
 350         }
 351
 352         return $newbody;
 353 }}
 354
 355 function bb_ShareAttributes($share, $simplehtml) {
 356         $attributes = $share[2];
 357
 358         $author = "";
 359         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 360         if ($matches[1] != "")
 361                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 362
 363         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 364         if ($matches[1] != "")
 365                 $author = $matches[1];
 366
 367         $profile = "";
 368         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 369         if ($matches[1] != "")
 370                 $profile = $matches[1];
 371
 372         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 373         if ($matches[1] != "")
 374                 $profile = $matches[1];
 375
 376         $avatar = "";
 377         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 378         if ($matches[1] != "")
 379                 $avatar = $matches[1];
 380
 381         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 382         if ($matches[1] != "")
 383                 $avatar = $matches[1];
 384
 385         $link = "";
 386         preg_match("/link='(.*?)'/ism", $attributes, $matches);
 387         if ($matches[1] != "")
 388                 $link = $matches[1];
 389
 390         preg_match('/link="(.*?)"/ism', $attributes, $matches);
 391         if ($matches[1] != "")
 392                 $link = $matches[1];
 393
 394         $posted = "";
 395
 396         $itemcache = get_itemcachepath();
 397
 398         preg_match("/posted='(.*?)'/ism", $attributes, $matches);
 399         if ($matches[1] != "")
 400                 $posted = $matches[1];
 401
 402         preg_match('/posted="(.*?)"/ism', $attributes, $matches);
 403         if ($matches[1] != "")
 404                 $posted = $matches[1];
 405
 406         // relative dates only make sense when they aren't cached
 407         if ($itemcache == "")
 408                 $reldate = (($posted) ? " " . relative_date($posted) : '');
 409
 410         // We only call this so that a previously unknown contact can be added.
 411         // This is important for the function "get_contact_details_by_url".
 412         // This function then can fetch an entry from the contact table.
 413         get_contact($profile, 0);
 414
 415         $data = get_contact_details_by_url($profile);
 416
 417         if (isset($data["name"]) AND ($data["name"] != "") AND isset($data["addr"]) AND ($data["addr"] != ""))
 418                 $userid_compact = $data["name"]." (".$data["addr"].")";
 419         else
 420                 $userid_compact = GetProfileUsername($profile,$author, true);
 421
 422         if (isset($data["addr"]) AND ($data["addr"] != ""))
 423                 $userid = $data["addr"];
 424         else
 425                 $userid = GetProfileUsername($profile,$author, false);
 426
 427         if (isset($data["name"]) AND ($data["name"] != ""))
 428                 $author = $data["name"];
 429
 430         if (isset($data["micro"]) AND ($data["micro"] != ""))
 431                 $avatar = $data["micro"];
 432
 433         $preshare = trim($share[1]);
 434
 435         if ($preshare != "")
 436                 $preshare .= "<br /><br />";
 437
 438         switch ($simplehtml) {
 439                 case 1:
 440                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$share[3]."«";
 441                         break;
 442                 case 2:
 443                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 444                         break;
 445                 case 3: // Diaspora
 446                         $headline .= '<b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b><br />';
 447
 448                         $text = trim($share[1]);
 449
 450                         if ($text != "")
 451                                 $text .= "<hr />";
 452
 453                         if (substr(normalise_link($link), 0, 19) != "http://twitter.com/") {
 454                                 $text .= $headline.'<blockquote>'.trim($share[3])."</blockquote><br />";
 455
 456                                 if ($link != "")
 457                                         $text .= '<br /><a href="'.$link.'">[l]</a>';
 458                         } else
 459                                 $text .= '<br /><a href="'.$link.'">'.$link.'</a>';
 460
 461                         break;
 462                 case 4:
 463                         $headline = '<div class="shared_header">';
 464                         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
 465                         $headline .= sprintf(t('<a href="%1$s" target="_blank">%2$s</a> %3$s'), $link, $userid, $posted);
 466                         $headline .= ":</b></span></div>";
 467
 468                         $text = trim($share[1]);
 469
 470                         if ($text != "")
 471                                 $text .= "<hr />";
 472
 473                         $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
 474
 475                         break;
 476                 case 5:
 477                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 478                         break;
 479                 case 6: // app.net
 480                         $text = $preshare."&gt;&gt; @".$userid_compact.": <br />".$share[3];
 481                         break;
 482                 case 7: // statusnet/GNU Social
 483                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8')." @".$userid_compact.": ".$share[3];
 484                         break;
 485                 case 8: // twitter
 486                         $text = $preshare."RT @".$userid_compact.": ".$share[3];
 487                         break;
 488                 case 9: // Google+/Facebook
 489                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 490
 491                         if ($link != "")
 492                                 $text .= "<br /><br />".$link;
 493                         break;
 494                 default:
 495                         $text = trim($share[1])."\n";
 496
 497                         $avatar = proxy_url($avatar, false, PROXY_SIZE_THUMB);
 498
 499                         $tpl = get_markup_template('shared_content.tpl');
 500                         $text .= replace_macros($tpl,
 501                                         array(
 502                                                 '$profile' => $profile,
 503                                                 '$avatar' => $avatar,
 504                                                 '$author' => $author,
 505                                                 '$link' => $link,
 506                                                 '$posted' => $posted,
 507                                                 '$reldate' => $reldate,
 508                                                 '$content' => trim($share[3])
 509                                         )
 510                                 );
 511                         break;
 512         }
 513         return($text);
 514 }
 515
 516 function GetProfileUsername($profile, $username, $compact = false, $getnetwork = false) {
 517
 518         $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
 519         if ($twitter != $profile) {
 520                 if ($getnetwork)
 521                         return(NETWORK_TWITTER);
 522                 elseif ($compact)
 523                         return($twitter);
 524                 else
 525                         return($username." (".$twitter.")");
 526         }
 527
 528         $appnet = preg_replace("=https?://alpha.app.net/(.*)=ism", "$1@alpha.app.net", $profile);
 529         if ($appnet != $profile) {
 530                 if ($getnetwork)
 531                         return(NETWORK_APPNET);
 532                 elseif ($compact)
 533                         return($appnet);
 534                 else
 535                         return($username." (".$appnet.")");
 536         }
 537
 538         $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
 539         if ($gplus != $profile) {
 540                 if ($getnetwork)
 541                         return(NETWORK_GPLUS);
 542                 elseif ($compact)
 543                         return($gplususername." (".$username.")");
 544                 else
 545                         return($username." (".$gplus.")");
 546         }
 547
 548         $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
 549         if ($friendica != $profile) {
 550                 if ($getnetwork)
 551                         return(NETWORK_DFRN);
 552                 elseif ($compact)
 553                         return($friendica);
 554                 else
 555                         return($username." (".$friendica.")");
 556         }
 557
 558         $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
 559         if ($diaspora != $profile) {
 560                 if ($getnetwork)
 561                         return(NETWORK_DIASPORA);
 562                 elseif ($compact)
 563                         return($diaspora);
 564                 else
 565                         return($username." (".$diaspora.")");
 566         }
 567
 568         $red = preg_replace("=https?://(.*)/channel/(.*)=ism", "$2@$1", $profile);
 569         if ($red != $profile) {
 570                 if ($getnetwork)
 571                         // red is identified as Diaspora - friendica can't connect directly to it
 572                         return(NETWORK_DIASPORA);
 573                 elseif ($compact)
 574                         return($red);
 575                 else
 576                         return($username." (".$red.")");
 577         }
 578
 579         $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
 580         if ($StatusnetHost != $profile) {
 581                 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
 582                 if ($StatusnetUser != $profile) {
 583                         $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
 584                         $user = json_decode($UserData);
 585                         if ($user) {
 586                                 if ($getnetwork)
 587                                         return(NETWORK_STATUSNET);
 588                                 elseif ($compact)
 589                                         return($user->screen_name."@".$StatusnetHost);
 590                                 else
 591                                         return($username." (".$user->screen_name."@".$StatusnetHost.")");
 592                         }
 593                 }
 594         }
 595
 596         // pumpio (http://host.name/user)
 597         $rest = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$3", $profile);
 598         if ($rest == "") {
 599                 $pumpio = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$2@$1", $profile);
 600                 if ($pumpio != $profile) {
 601                         if ($getnetwork)
 602                                 return(NETWORK_PUMPIO);
 603                         elseif ($compact)
 604                                 return($pumpio);
 605                         else
 606                                 return($username." (".$pumpio.")");
 607                 }
 608         }
 609
 610         return($username);
 611 }
 612
 613 function bb_DiasporaLinks($match) {
 614         $a = get_app();
 615
 616         return "[url=".$a->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 href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
 896                 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
 897
 898         // Perform MAIL Search
 899         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
 900         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
 901
 902         // leave open the posibility of [map=something]
 903         // this is replaced in prepare_body() which has knowledge of the item location
 904
 905         if (strpos($Text,'[/map]') !== false) {
 906                 $Text = preg_replace_callback("/\[map\](.*?)\[\/map\]/ism", 'bb_map_location', $Text);
 907         }
 908         if (strpos($Text,'[map=') !== false) {
 909                 $Text = preg_replace_callback("/\[map=(.*?)\]/ism", 'bb_map_coords', $Text);
 910         }
 911         if (strpos($Text,'[map]') !== false) {
 912                 $Text = preg_replace("/\[map\]/", '<div class="map"></div>', $Text);
 913         }
 914
 915         // Check for headers
 916         $Text = preg_replace("(\[h1\](.*?)\[\/h1\])ism",'<h1>$1</h1>',$Text);
 917         $Text = preg_replace("(\[h2\](.*?)\[\/h2\])ism",'<h2>$1</h2>',$Text);
 918         $Text = preg_replace("(\[h3\](.*?)\[\/h3\])ism",'<h3>$1</h3>',$Text);
 919         $Text = preg_replace("(\[h4\](.*?)\[\/h4\])ism",'<h4>$1</h4>',$Text);
 920         $Text = preg_replace("(\[h5\](.*?)\[\/h5\])ism",'<h5>$1</h5>',$Text);
 921         $Text = preg_replace("(\[h6\](.*?)\[\/h6\])ism",'<h6>$1</h6>',$Text);
 922
 923         // Check for paragraph
 924         $Text = preg_replace("(\[p\](.*?)\[\/p\])ism",'<p>$1</p>',$Text);
 925
 926         // Check for bold text
 927         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
 928
 929         // Check for Italics text
 930         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
 931
 932         // Check for Underline text
 933         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 934
 935         // Check for strike-through text
 936         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 937
 938         // Check for over-line text
 939         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 940
 941         // Check for colored text
 942         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 943
 944         // Check for sized text
 945         // [size=50] --> font-size: 50px (with the unit).
 946         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px; line-height: initial;\">$2</span>",$Text);
 947         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1; line-height: initial;\">$2</span>",$Text);
 948
 949         // Check for centered text
 950         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
 951
 952         // Check for list text
 953         $Text = str_replace("[*]", "<li>", $Text);
 954
 955         // Check for style sheet commands
 956         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
 957
 958         // Check for CSS classes
 959         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
 960
 961         // handle nested lists
 962         $endlessloop = 0;
 963
 964         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
 965                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
 966                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
 967                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
 968                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 969                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 970                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 971                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
 972                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
 973                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
 974                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
 975                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 976                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 977                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
 978         }
 979
 980         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
 981         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 982         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 983         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 984
 985         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 986         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 987
 988         $Text = str_replace('[hr]','<hr />', $Text);
 989
 990         // This is actually executed in prepare_body()
 991
 992         $Text = str_replace('[nosmile]','',$Text);
 993
 994         // Check for font change text
 995         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 996
 997         // Declare the format for [code] layout
 998
 999 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
1000
1001         $CodeLayout = '<code>$1</code>';
1002         // Check for [code] text
1003         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
1004
1005         // Declare the format for [spoiler] layout
1006         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
1007
1008         // Check for [spoiler] text
1009         // handle nested quotes
1010         $endlessloop = 0;
1011         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
1012                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
1013
1014         // Check for [spoiler=Author] text
1015
1016         $t_wrote = t('$1 wrote:');
1017
1018         // handle nested quotes
1019         $endlessloop = 0;
1020         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
1021                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
1022                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
1023                                      $Text);
1024
1025         // Declare the format for [quote] layout
1026         $QuoteLayout = '<blockquote>$1</blockquote>';
1027
1028         // Check for [quote] text
1029         // handle nested quotes
1030         $endlessloop = 0;
1031         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
1032                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
1033
1034         // Check for [quote=Author] text
1035
1036         $t_wrote = t('$1 wrote:');
1037
1038         // handle nested quotes
1039         $endlessloop = 0;
1040         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
1041                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
1042                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
1043                                      $Text);
1044
1045
1046         // [img=widthxheight]image source[/img]
1047         $Text = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", 'bb_PictureCacheExt', $Text);
1048
1049         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
1050         $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
1051
1052         // Images
1053         // [img]pathtoimage[/img]
1054         $Text = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'bb_PictureCache', $Text);
1055
1056         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1057         $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
1058
1059         // Shared content
1060         $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
1061                 function ($match) use ($simplehtml){
1062                         return(bb_ShareAttributes($match, $simplehtml));
1063                 },$Text);
1064
1065         $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);
1066         $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 />', $Text);
1067         //$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 />', $Text);
1068
1069
1070         // Try to Oembed
1071         if ($tryoembed) {
1072                 $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);
1073                 $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);
1074
1075                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
1076                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
1077         } else {
1078                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
1079                                         '<a href="$1" target="_blank">$1</a>', $Text);
1080                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
1081                                         '<a href="$1" target="_blank">$1</a>', $Text);
1082         }
1083
1084         // html5 video and audio
1085
1086
1087         if ($tryoembed)
1088                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
1089         else
1090                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
1091
1092         // Youtube extensions
1093         if ($tryoembed) {
1094                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1095                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
1096                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
1097         }
1098
1099         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1100         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1101         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1102
1103         if ($tryoembed)
1104                 $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);
1105         else
1106                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1107                                         '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $Text);
1108
1109         if ($tryoembed) {
1110                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1111                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1112         }
1113
1114         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1115         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1116
1117         if ($tryoembed)
1118                 $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);
1119         else
1120                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1121                                         '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $Text);
1122
1123 //      $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);
1124
1125         // oembed tag
1126         $Text = oembed_bbcode2html($Text);
1127
1128         // Avoid triple linefeeds through oembed
1129         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
1130
1131         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1132         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1133         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1134         // start which is always required). Allow desc with a missing summary for compatibility.
1135
1136         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
1137                 $sub = format_event_html($ev, $simplehtml);
1138
1139                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
1140                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
1141                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
1142                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
1143                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
1144                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
1145                 $Text = preg_replace("/\[event\-id\](.*?)\[\/event\-id\]/ism",'',$Text);
1146         }
1147
1148
1149         //replace oneliner <code> with <key>
1150         $Text = preg_replace_callback("|(?!<br[^>]*>)<code>([^<]*)</code>(?!<br[^>]*>)|ism", 'bb_onelinecode_cb', $Text);
1151
1152         // Unhide all [noparse] contained bbtags unspacefying them
1153         // and triming the [noparse] tag.
1154
1155         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
1156         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
1157         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
1158
1159
1160         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
1161         $Text = preg_replace('/\&\#039\;/','\'',$Text);
1162         $Text = preg_replace('/\&quot\;/','"',$Text);
1163
1164         // fix any escaped ampersands that may have been converted into links
1165         $Text = preg_replace("/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
1166         $Text = preg_replace("/\<([^>]*?)(src|href)=\"(?!http|ftp|mailto|gopher|cid)(.*?)\>/ism",'<$1$2="">',$Text);
1167
1168         if($saved_image)
1169                 $Text = bb_replace_images($Text, $saved_image);
1170
1171         // Clean up the HTML by loading and saving the HTML with the DOM.
1172         // Bad structured html can break a whole page.
1173         // For performance reasons do it only with ativated item cache or at export.
1174         if (!$tryoembed OR (get_itemcachepath() != "")) {
1175                 $doc = new DOMDocument();
1176                 $doc->preserveWhiteSpace = false;
1177
1178                 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1179
1180                 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1181                 $encoding = '<?xml encoding="UTF-8">';
1182                 @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
1183                 $doc->encoding = 'UTF-8';
1184                 $Text = $doc->saveHTML();
1185                 $Text = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $Text);
1186
1187                 $Text = str_replace('<br></li>','</li>', $Text);
1188
1189                 //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1190         }
1191
1192         // Clean up some useless linebreaks in lists
1193         //$Text = str_replace('<br /><ul','<ul ', $Text);
1194         //$Text = str_replace('</ul><br />','</ul>', $Text);
1195         //$Text = str_replace('</li><br />','</li>', $Text);
1196         //$Text = str_replace('<br /><li>','<li>', $Text);
1197         //      $Text = str_replace('<br /><ul','<ul ', $Text);
1198
1199         call_hooks('bbcode',$Text);
1200
1201         return trim($Text);
1202 }
1203
1204 /**
1205  * @brief Removes the "abstract" element from the text
1206  *
1207  * @param string $text The text with BBCode
1208  * @return string The same text - but without "abstract" element
1209  */
1210 function remove_abstract($text) {
1211         $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
1212         $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
1213
1214         return $text;
1215 }
1216
1217 /**
1218  * @brief Returns the value of the "abstract" element
1219  *
1220  * @param string $text The text that maybe contains the element
1221  * @param string $addon The addon for which the abstract is meant for
1222  * @return string The abstract
1223  */
1224 function fetch_abstract($text, $addon = "") {
1225         $abstract = "";
1226         $abstracts = array();
1227         $addon = strtolower($addon);
1228
1229         if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))
1230                 foreach ($results AS $result)
1231                         $abstracts[strtolower($result[1])] = $result[2];
1232
1233         if (isset($abstracts[$addon]))
1234                 $abstract = $abstracts[$addon];
1235
1236         if ($abstract == "")
1237                 if (preg_match("/\[abstract\](.*?)\[\/abstract\]/ism",$text, $result))
1238                         $abstract = $result[1];
1239
1240         return $abstract;
1241 }
1242 ?>