include/bbcode.php

   1 <?php
   2 require_once("include/oembed.php");
   3 require_once('include/event.php');
   4
   5 function bb_attachment($Text, $plaintext = false, $tryoembed = true) {
   6         $Text = preg_replace_callback("/\[attachment(.*?)\](.*?)\[\/attachment\]/ism",
   7                 function ($match) use ($plaintext){
   8
   9                         $attributes = $match[1];
  10
  11                         $type = "";
  12                         preg_match("/type='(.*?)'/ism", $attributes, $matches);
  13                         if ($matches[1] != "")
  14                                 $type = $matches[1];
  15
  16                         preg_match('/type="(.*?)"/ism', $attributes, $matches);
  17                         if ($matches[1] != "")
  18                                 $type = $matches[1];
  19
  20                         if ($type == "")
  21                                 return($match[0]);
  22
  23                         if (!in_array($type, array("link", "audio", "video")))
  24                                 return($match[0]);
  25
  26                         $url = "";
  27                         preg_match("/url='(.*?)'/ism", $attributes, $matches);
  28                         if ($matches[1] != "")
  29                                 $url = $matches[1];
  30
  31                         preg_match('/url="(.*?)"/ism', $attributes, $matches);
  32                         if ($matches[1] != "")
  33                                 $url = $matches[1];
  34
  35                         $title = "";
  36                         preg_match("/title='(.*?)'/ism", $attributes, $matches);
  37                         if ($matches[1] != "")
  38                                 $title = $matches[1];
  39
  40                         preg_match('/title="(.*?)"/ism', $attributes, $matches);
  41                         if ($matches[1] != "")
  42                                 $title = $matches[1];
  43
  44                         $image = "";
  45                         preg_match("/image='(.*?)'/ism", $attributes, $matches);
  46                         if ($matches[1] != "")
  47                                 $image = $matches[1];
  48
  49                         preg_match('/image="(.*?)"/ism', $attributes, $matches);
  50                         if ($matches[1] != "")
  51                                 $image = $matches[1];
  52
  53                         $preview = "";
  54                         preg_match("/preview='(.*?)'/ism", $attributes, $matches);
  55                         if ($matches[1] != "")
  56                                 $preview = $matches[1];
  57
  58                         preg_match('/preview="(.*?)"/ism', $attributes, $matches);
  59                         if ($matches[1] != "")
  60                                 $preview = $matches[1];
  61
  62                         if ($plaintext)
  63                                 $text = sprintf('<a href="%s" target="_blank">%s</a>', $url, $title);
  64                         else {
  65                                 $text = sprintf('<span class="type-%s">', $type);
  66
  67                                 $bookmark = array(sprintf('[bookmark=%s]%s[/bookmark]', $url, $title), $title, $url);
  68                                 if ($tryoembed)
  69                                         $oembed = tryoembed($bookmark);
  70                                 else
  71                                         $oembed = $bookmark[0];
  72
  73                                 if (($image != "") AND !strstr(strtolower($oembed), "<img "))
  74                                         $text .= sprintf('<img src="%s" alt="%s" class="attachment-image" />', $image, $title); // To-Do: Anführungszeichen in "alt"
  75                                 elseif (($preview != "") AND !strstr(strtolower($oembed), "<img "))
  76                                         $text .= sprintf('<img src="%s" alt="%s" class="attachment-preview" />', $preview, $title); // To-Do: Anführungszeichen in "alt"
  77
  78                                 $text .= $oembed;
  79
  80                                 $text .= sprintf('<blockquote>%s</blockquote></span>', trim($match[2]));
  81                         }
  82
  83                         return($text);
  84                 },$Text);
  85
  86         return($Text);
  87 }
  88
  89 function bb_rearrange_link($shared) {
  90         if ($shared[1] != "type-link")
  91                 return($shared[0]);
  92
  93         $newshare = trim($shared[2]);
  94         $newshare = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $newshare);
  95
  96         if (!strpos($shared[0], "[bookmark"))
  97                 $newshare = preg_replace("/\[url\=(.*?)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $newshare, 1);
  98
  99         preg_match("/\[img\](.*?)\[\/img\]/ism", $newshare, $matches);
 100
 101         if ($matches) {
 102                 $newshare = str_replace($matches[0], '', $newshare);
 103                 $newshare = "[img]".$matches[1]."[/img]\n".$newshare;
 104         }
 105
 106         $search = array("\n\n", "\n ", " \n");
 107         $replace = array("\n", "\n", "\n");
 108         do {
 109                 $oldtext = $newshare;
 110                 $newshare = str_replace($search, $replace, $newshare);
 111         } while ($oldtext != $newshare);
 112
 113         $newshare = "[class=type-link]".$newshare."[/class]";
 114
 115         return($newshare);
 116 }
 117
 118 function bb_remove_share_information($Text, $plaintext = false, $nolink = false) {
 119         $Text = preg_replace_callback("((.*?)\[class=(.*?)\](.*?)\[\/class\])ism",
 120                 function ($match) use ($plaintext, $nolink){
 121                         return(bb_cleanup_share($match, $plaintext, $nolink));
 122                 },$Text);
 123         return($Text);
 124 }
 125
 126 function bb_cleanup_share($shared, $plaintext, $nolink) {
 127         if (!in_array($shared[2], array("type-link", "type-video")))
 128                 return($shared[0]);
 129
 130         if ($plaintext)
 131                 $shared[3] = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism","[bookmark=$1]$1[/bookmark]", $shared[3]);
 132
 133         if (!preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",$shared[3], $bookmark))
 134                 return($shared[0]);
 135
 136         if ($nolink)
 137                 return(trim($shared[1]));
 138
 139         $title = "";
 140         $link = "";
 141
 142         if (isset($bookmark[2][0]))
 143                 $title = $bookmark[2][0];
 144
 145         if (isset($bookmark[1][0]))
 146                 $link = $bookmark[1][0];
 147
 148         if (strpos($shared[1],$title) !== false)
 149                 $title = "";
 150
 151 //        if (strpos($shared[1],$link) !== false)
 152 //                $link = "";
 153
 154         $text = trim($shared[1]);
 155
 156         if (($text == "") AND ($title != "") AND ($link == ""))
 157                 $text .= "\n\n".trim($title);
 158
 159         if (($link != "") AND ($title != ""))
 160                 $text .= "\n[url=".trim($link)."]".trim($title)."[/url]";
 161         elseif (($link != ""))
 162                 $text .= "\n".trim($link);
 163
 164         return(trim($text));
 165 }
 166
 167
 168 function bb_cleanstyle($st) {
 169   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
 170 }
 171
 172 function bb_cleanclass($st) {
 173   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
 174 }
 175
 176 function cleancss($input) {
 177
 178         $cleaned = "";
 179
 180         $input = strtolower($input);
 181
 182         for ($i = 0; $i < strlen($input); $i++) {
 183                 $char = substr($input, $i, 1);
 184
 185                 if (($char >= "a") and ($char <= "z"))
 186                         $cleaned .= $char;
 187
 188                 if (!(strpos(" #;:0123456789-_", $char) === false))
 189                         $cleaned .= $char;
 190         }
 191
 192         return($cleaned);
 193 }
 194
 195 function stripcode_br_cb($s) {
 196         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
 197 }
 198
 199 function tryoembed($match){
 200         $url = ((count($match)==2)?$match[1]:$match[2]);
 201
 202         // Always embed the SSL version
 203         $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
 204                                 array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
 205
 206         //logger("tryoembed: $url");
 207
 208         $o = oembed_fetch_url($url);
 209
 210         //echo "<pre>"; var_dump($match, $url, $o); killme();
 211
 212         if ($o->type=="error") return $match[0];
 213
 214         $html = oembed_format_object($o);
 215         return $html; //oembed_iframe($html,$o->width,$o->height);
 216
 217 }
 218
 219 // [noparse][i]italic[/i][/noparse] turns into
 220 // [noparse][ i ]italic[ /i ][/noparse],
 221 // to hide them from parser.
 222
 223 function bb_spacefy($st) {
 224   $whole_match = $st[0];
 225   $captured = $st[1];
 226   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
 227   $new_str = str_replace($captured, $spacefied, $whole_match);
 228   return $new_str;
 229 }
 230
 231 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
 232 // now turns back and the [noparse] tags are trimed
 233 // returning [i]italic[/i]
 234
 235 function bb_unspacefy_and_trim($st) {
 236   $whole_match = $st[0];
 237   $captured = $st[1];
 238   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
 239   return $unspacefied;
 240 }
 241
 242 function bb_find_open_close($s, $open, $close, $occurance = 1) {
 243
 244         if($occurance < 1)
 245                 $occurance = 1;
 246
 247         $start_pos = -1;
 248         for($i = 1; $i <= $occurance; $i++) {
 249                 if( $start_pos !== false)
 250                         $start_pos = strpos($s, $open, $start_pos + 1);
 251         }
 252
 253         if( $start_pos === false)
 254                 return false;
 255
 256         $end_pos = strpos($s, $close, $start_pos);
 257
 258         if( $end_pos === false)
 259                 return false;
 260
 261         $res = array( 'start' => $start_pos, 'end' => $end_pos );
 262
 263         return $res;
 264 }
 265
 266 function get_bb_tag_pos($s, $name, $occurance = 1) {
 267
 268         if($occurance < 1)
 269                 $occurance = 1;
 270
 271         $start_open = -1;
 272         for($i = 1; $i <= $occurance; $i++) {
 273                 if( $start_open !== false)
 274                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
 275         }
 276
 277         if( $start_open === false)
 278                 return false;
 279
 280         $start_equal = strpos($s, '=', $start_open);
 281         $start_close = strpos($s, ']', $start_open);
 282
 283         if( $start_close === false)
 284                 return false;
 285
 286         $start_close++;
 287
 288         $end_open = strpos($s, '[/' . $name . ']', $start_close);
 289
 290         if( $end_open === false)
 291                 return false;
 292
 293         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
 294                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
 295         if( $start_equal !== false)
 296                 $res['start']['equal'] = $start_equal + 1;
 297
 298         return $res;
 299 }
 300
 301 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
 302
 303         $string = $s;
 304
 305         $occurance = 1;
 306         $pos = get_bb_tag_pos($string, $name, $occurance);
 307         while($pos !== false && $occurance < 1000) {
 308
 309                 $start = substr($string, 0, $pos['start']['open']);
 310                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
 311                 $end = substr($string, $pos['end']['close']);
 312                 if($end === false)
 313                         $end = '';
 314
 315                 $subject = preg_replace($pattern, $replace, $subject);
 316                 $string = $start . $subject . $end;
 317
 318                 $occurance++;
 319                 $pos = get_bb_tag_pos($string, $name, $occurance);
 320         }
 321
 322         return $string;
 323 }
 324
 325 if(! function_exists('bb_extract_images')) {
 326 function bb_extract_images($body) {
 327
 328         $saved_image = array();
 329         $orig_body = $body;
 330         $new_body = '';
 331
 332         $cnt = 0;
 333         $img_start = strpos($orig_body, '[img');
 334         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 335         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 336         while(($img_st_close !== false) && ($img_end !== false)) {
 337
 338                 $img_st_close++; // make it point to AFTER the closing bracket
 339                 $img_end += $img_start;
 340
 341                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 342                         // This is an embedded image
 343
 344                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
 345                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
 346
 347                         $cnt++;
 348                 }
 349                 else
 350                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
 351
 352                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
 353
 354                 if($orig_body === false) // in case the body ends on a closing image tag
 355                         $orig_body = '';
 356
 357                 $img_start = strpos($orig_body, '[img');
 358                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 359                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 360         }
 361
 362         $new_body = $new_body . $orig_body;
 363
 364         return array('body' => $new_body, 'images' => $saved_image);
 365 }}
 366
 367 if(! function_exists('bb_replace_images')) {
 368 function bb_replace_images($body, $images) {
 369
 370         $newbody = $body;
 371
 372         $cnt = 0;
 373         foreach($images as $image) {
 374                 // We're depending on the property of 'foreach' (specified on the PHP website) that
 375                 // it loops over the array starting from the first element and going sequentially
 376                 // to the last element
 377                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . $image .'" alt="' . t('Image/photo') . '" />', $newbody);
 378                 $cnt++;
 379         }
 380
 381         return $newbody;
 382 }}
 383
 384 function bb_ShareAttributes($share, $simplehtml) {
 385         $attributes = $share[2];
 386
 387         $author = "";
 388         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 389         if ($matches[1] != "")
 390                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 391
 392         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 393         if ($matches[1] != "")
 394                 $author = $matches[1];
 395
 396         $profile = "";
 397         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 398         if ($matches[1] != "")
 399                 $profile = $matches[1];
 400
 401         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 402         if ($matches[1] != "")
 403                 $profile = $matches[1];
 404
 405         $avatar = "";
 406         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 407         if ($matches[1] != "")
 408                 $avatar = $matches[1];
 409
 410         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 411         if ($matches[1] != "")
 412                 $avatar = $matches[1];
 413
 414         $link = "";
 415         preg_match("/link='(.*?)'/ism", $attributes, $matches);
 416         if ($matches[1] != "")
 417                 $link = $matches[1];
 418
 419         preg_match('/link="(.*?)"/ism', $attributes, $matches);
 420         if ($matches[1] != "")
 421                 $link = $matches[1];
 422
 423         $posted = "";
 424
 425         $itemcache = get_itemcachepath();
 426
 427         // relative dates only make sense when they aren't cached
 428         if ($itemcache == "") {
 429                 preg_match("/posted='(.*?)'/ism", $attributes, $matches);
 430                 if ($matches[1] != "")
 431                         $posted = $matches[1];
 432
 433                 preg_match('/posted="(.*?)"/ism', $attributes, $matches);
 434                 if ($matches[1] != "")
 435                         $posted = $matches[1];
 436
 437                 $reldate = (($posted) ? " " . relative_date($posted) : '');
 438         }
 439
 440         $userid = GetProfileUsername($profile,$author, false);
 441         $userid_compact = GetProfileUsername($profile,$author, true);
 442
 443         $preshare = trim($share[1]);
 444
 445         if ($preshare != "")
 446                 $preshare .= "<br /><br />";
 447
 448         switch ($simplehtml) {
 449                 case 1:
 450                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$share[3]."«";
 451                         break;
 452                 case 2:
 453                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 454                         break;
 455                 case 3: // Diaspora
 456                         $headline = '<div class="shared_header">';
 457                         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b></span>';
 458                         $headline .= "</div>";
 459
 460                         $text = trim($share[1]);
 461
 462                         if ($text != "")
 463                                 $text .= "<hr />";
 464
 465                         $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
 466
 467                         if ($link != "")
 468                                 $text .= '<br /><a href="'.$link.'">[l]</a>';
 469                         break;
 470                 case 4:
 471                         $headline = '<div class="shared_header">';
 472                         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
 473                         $headline .= sprintf(t('<a href="%1$s" target="_blank">%2$s</a> %3$s'), $link, $userid, $posted);
 474                         $headline .= ":</b></span></div>";
 475
 476                         $text = trim($share[1]);
 477
 478                         if ($text != "")
 479                                 $text .= "<hr />";
 480
 481                         $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
 482
 483                         break;
 484                 case 5:
 485                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 486                         break;
 487                 case 6: // app.net
 488                         $text = $preshare."&gt;&gt; @".$userid_compact.": <br />".$share[3];
 489                         break;
 490                 case 7: // statusnet/GNU Social
 491                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8')." @".$userid_compact.": ".$share[3];
 492                         break;
 493                 case 8: // twitter
 494                         $text = $preshare."RT @".$userid_compact.": ".$share[3];
 495                         break;
 496                 case 9: // Google+/Facebook
 497                         $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
 498
 499                         if ($link != "")
 500                                 $text .= "<br /><br />".$link;
 501                         break;
 502                 default:
 503                         $headline = trim($share[1]).'<div class="shared_header">';
 504                         if ($avatar != "")
 505                                 $headline .= '<img src="'.$avatar.'" height="32" width="32" >';
 506
 507                         $headline .= sprintf(t('<span><a href="%s" target="_blank">%s</a> wrote the following <a href="%s" target="_blank">post</a>'.$reldate.':</span>'), $profile, $author, $link);
 508                         $headline .= "</div>";
 509                         $text = $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote>";
 510                         break;
 511         }
 512         return($text);
 513 }
 514
 515 function GetProfileUsername($profile, $username, $compact = false) {
 516
 517         $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
 518         if ($twitter != $profile) {
 519                 if ($compact)
 520                         return($twitter);
 521                 else
 522                         return($username." (".$twitter.")");
 523         }
 524
 525         $appnet = preg_replace("=https?://alpha.app.net/(.*)=ism", "$1@alpha.app.net", $profile);
 526         if ($appnet != $profile) {
 527                 if ($compact)
 528                         return($appnet);
 529                 else
 530                         return($username." (".$appnet.")");
 531         }
 532
 533         $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
 534         if ($gplus != $profile) {
 535                 if ($compact)
 536                         return($gplususername." (".$username.")");
 537                 else
 538                         return($username." (".$gplus.")");
 539         }
 540
 541         $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
 542         if ($friendica != $profile) {
 543                 if ($compact)
 544                         return($friendica);
 545                 else
 546                         return($username." (".$friendica.")");
 547         }
 548
 549         $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
 550         if ($diaspora != $profile) {
 551                 if ($compact)
 552                         return($diaspora);
 553                 else
 554                         return($username." (".$diaspora.")");
 555         }
 556
 557         $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
 558         if ($StatusnetHost != $profile) {
 559                 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
 560                 if ($StatusnetUser != $profile) {
 561                         $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
 562                         $user = json_decode($UserData);
 563                         if ($user) {
 564                                 if ($compact)
 565                                         return($user->screen_name."@".$StatusnetHost);
 566                                 else
 567                                         return($username." (".$user->screen_name."@".$StatusnetHost.")");
 568                         }
 569                 }
 570         }
 571
 572         // pumpio (http://host.name/user)
 573         $rest = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$3", $profile);
 574         if ($rest == "") {
 575                 $pumpio = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$2@$1", $profile);
 576                 if ($pumpio != $profile) {
 577                         if ($compact)
 578                                 return($pumpio);
 579                         else
 580                                 return($username." (".$pumpio.")");
 581                 }
 582         }
 583
 584         return($username);
 585 }
 586
 587 function bb_RemovePictureLinks($match) {
 588         $text = Cache::get($match[1]);
 589
 590         if(is_null($text)){
 591                 $ch = @curl_init($match[1]);
 592                 @curl_setopt($ch, CURLOPT_NOBODY, true);
 593                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 594                 @curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (compatible; Friendica)");
 595                 @curl_exec($ch);
 596                 $curl_info = @curl_getinfo($ch);
 597
 598                 if (substr($curl_info["content_type"], 0, 6) == "image/")
 599                         $text = "[url=".$match[1]."]".$match[1]."[/url]";
 600                 else {
 601                         $text = "[url=".$match[2]."]".$match[2]."[/url]";
 602
 603                         // if its not a picture then look if its a page that contains a picture link
 604                         require_once("include/network.php");
 605
 606                         $body = fetch_url($match[1]);
 607
 608                         $doc = new DOMDocument();
 609                         @$doc->loadHTML($body);
 610                         $xpath = new DomXPath($doc);
 611                         $list = $xpath->query("//meta[@name]");
 612                         foreach ($list as $node) {
 613                                 $attr = array();
 614
 615                                 if ($node->attributes->length)
 616                                         foreach ($node->attributes as $attribute)
 617                                                 $attr[$attribute->name] = $attribute->value;
 618
 619                                 if (strtolower($attr["name"]) == "twitter:image")
 620                                         $text = "[url=".$attr["content"]."]".$attr["content"]."[/url]";
 621                         }
 622                 }
 623                 Cache::set($match[1],$text);
 624         }
 625         return($text);
 626 }
 627
 628 function bb_expand_links($match) {
 629         if (stristr($match[2], $match[3]) OR ($match[2] == $match[3]))
 630                 return ($match[1]."[url]".$match[2]."[/url]");
 631         else
 632                 return ($match[1].$match[3]." [url]".$match[2]."[/url]");
 633 }
 634
 635 function bb_CleanPictureLinksSub($match) {
 636         $text = Cache::get($match[1]);
 637
 638         if(is_null($text)){
 639                 $ch = @curl_init($match[1]);
 640                 @curl_setopt($ch, CURLOPT_NOBODY, true);
 641                 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 642                 @curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (compatible; Friendica)");
 643                 @curl_exec($ch);
 644                 $curl_info = @curl_getinfo($ch);
 645
 646                 // if its a link to a picture then embed this picture
 647                 if (substr($curl_info["content_type"], 0, 6) == "image/")
 648                         $text = "[img]".$match[1]."[/img]";
 649                 else {
 650                         $text = "[img]".$match[2]."[/img]";
 651
 652                         // if its not a picture then look if its a page that contains a picture link
 653                         require_once("include/network.php");
 654
 655                         $body = fetch_url($match[1]);
 656
 657                         $doc = new DOMDocument();
 658                         @$doc->loadHTML($body);
 659                         $xpath = new DomXPath($doc);
 660                         $list = $xpath->query("//meta[@name]");
 661                         foreach ($list as $node) {
 662                                 $attr = array();
 663
 664                                 if ($node->attributes->length)
 665                                         foreach ($node->attributes as $attribute)
 666                                                 $attr[$attribute->name] = $attribute->value;
 667
 668                                 if (strtolower($attr["name"]) == "twitter:image")
 669                                         $text = "[img]".$attr["content"]."[/img]";
 670                         }
 671                 }
 672                 Cache::set($match[1],$text);
 673         }
 674         return($text);
 675 }
 676
 677 function bb_CleanPictureLinks($text) {
 678         $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_CleanPictureLinksSub', $text);
 679         return ($text);
 680 }
 681
 682         // BBcode 2 HTML was written by WAY2WEB.net
 683         // extended to work with Mistpark/Friendica - Mike Macgirvin
 684
 685 function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false) {
 686
 687         $stamp1 = microtime(true);
 688
 689         $a = get_app();
 690
 691         // Hide all [noparse] contained bbtags by spacefying them
 692         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
 693
 694         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
 695         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
 696         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
 697
 698
 699         // Move all spaces out of the tags
 700         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
 701         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
 702
 703         // Extract the private images which use data urls since preg has issues with
 704         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
 705         // in after we've done all the regex matching. We cannot use any preg functions to do this.
 706
 707         $extracted = bb_extract_images($Text);
 708         $Text = $extracted['body'];
 709         $saved_image = $extracted['images'];
 710
 711         // If we find any event code, turn it into an event.
 712         // After we're finished processing the bbcode we'll
 713         // replace all of the event code with a reformatted version.
 714
 715         $ev = bbtoevent($Text);
 716
 717
 718         // Replace any html brackets with HTML Entities to prevent executing HTML or script
 719         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
 720
 721         $Text = str_replace("<", "&lt;", $Text);
 722         $Text = str_replace(">", "&gt;", $Text);
 723
 724         // remove some newlines before the general conversion
 725         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
 726         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
 727
 728         $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
 729         $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
 730
 731         // Handle attached links or videos
 732         $Text = bb_attachment($Text, ($simplehtml != 4) AND ($simplehtml != 0), $tryoembed);
 733
 734         // Rearrange shared links
 735         if (get_config("system", "rearrange_shared_links") AND (!$simplehtml OR $tryoembed))
 736                 $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_rearrange_link",$Text);
 737
 738         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
 739         if (!$tryoembed)
 740                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
 741
 742         // Convert new line chars to html <br /> tags
 743
 744         // nlbr seems to be hopelessly messed up
 745         //      $Text = nl2br($Text);
 746
 747         // We'll emulate it.
 748
 749         $Text = trim($Text);
 750         $Text = str_replace("\r\n","\n", $Text);
 751
 752         // removing multiplicated newlines
 753         if (get_config("system", "remove_multiplicated_lines")) {
 754                 $search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ");
 755                 $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ");
 756                 do {
 757                         $oldtext = $Text;
 758                         $Text = str_replace($search, $replace, $Text);
 759                 } while ($oldtext != $Text);
 760         }
 761
 762         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
 763
 764         if($preserve_nl)
 765                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
 766
 767
 768
 769         // Set up the parameters for a URL search string
 770         $URLSearchString = "^\[\]";
 771         // Set up the parameters for a MAIL search string
 772         $MAILSearchString = $URLSearchString;
 773
 774         // Remove all hashtag addresses
 775         if (!$tryoembed OR $simplehtml)
 776                 $Text = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $Text);
 777
 778         // Bookmarks in red - will be converted to bookmarks in friendica
 779         $Text = preg_replace("/#\^\[url\]([$URLSearchString]*)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $Text);
 780         $Text = preg_replace("/#\^\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $Text);
 781         $Text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
 782                                 "[bookmark=$1]$2[/bookmark]", $Text);
 783
 784         if (in_array($simplehtml, array(2, 6, 7, 8, 9))) {
 785                 $Text = preg_replace_callback("/([^#@])\[url\=([^\]]*)\](.*?)\[\/url\]/ism","bb_expand_links",$Text);
 786                 //$Text = preg_replace("/[^#@]\[url\=([^\]]*)\](.*?)\[\/url\]/ism",' $2 [url]$1[/url]',$Text);
 787                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",' $2 [url]$1[/url]',$Text);
 788         }
 789
 790         if ($simplehtml == 5)
 791                 $Text = preg_replace("/[^#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[url]$1[/url]', $Text);
 792
 793         // Perform URL Search
 794         if ($tryoembed)
 795                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
 796
 797         if ($simplehtml == 5)
 798                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url]$1[/url]',$Text);
 799         else
 800                 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
 801
 802         // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
 803         if (!$forplaintext)
 804                 $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="_blank">$2</a>', $Text);
 805         else {
 806                 $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism"," $1 ",$Text);
 807                 $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
 808         }
 809
 810         if ($tryoembed)
 811                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
 812
 813         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $Text);
 814         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 815         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 816
 817         // Red compatibility, though the link can't be authenticated on Friendica
 818         $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 819
 820
 821         // we may need to restrict this further if it picks up too many strays
 822         // link acct:user@host to a webfinger profile redirector
 823
 824         $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
 825                 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
 826
 827         // Perform MAIL Search
 828         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
 829         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
 830
 831         // Check for bold text
 832         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
 833
 834         // Check for Italics text
 835         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
 836
 837         // Check for Underline text
 838         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 839
 840         // Check for strike-through text
 841         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 842
 843         // Check for over-line text
 844         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 845
 846         // Check for colored text
 847         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 848
 849         // Check for sized text
 850         // [size=50] --> font-size: 50px (with the unit).
 851         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px; line-height: initial;\">$2</span>",$Text);
 852         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1; line-height: initial;\">$2</span>",$Text);
 853
 854         // Check for centered text
 855         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
 856
 857         // Check for list text
 858         $Text = str_replace("[*]", "<li>", $Text);
 859
 860         // Check for style sheet commands
 861         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
 862
 863         // Check for CSS classes
 864         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
 865
 866         // handle nested lists
 867         $endlessloop = 0;
 868
 869         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
 870                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
 871                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
 872                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
 873                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 874                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 875                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 876                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
 877                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
 878                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
 879                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
 880                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 881                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 882                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
 883         }
 884
 885         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
 886         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 887         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 888         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 889
 890         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 891         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 892
 893         $Text = str_replace('[hr]','<hr />', $Text);
 894
 895         // This is actually executed in prepare_body()
 896
 897         $Text = str_replace('[nosmile]','',$Text);
 898
 899         // Check for font change text
 900         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 901
 902         // Declare the format for [code] layout
 903
 904 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
 905
 906         $CodeLayout = '<code>$1</code>';
 907         // Check for [code] text
 908         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
 909
 910         // Declare the format for [spoiler] layout
 911         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
 912
 913         // Check for [spoiler] text
 914         // handle nested quotes
 915         $endlessloop = 0;
 916         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
 917                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
 918
 919         // Check for [spoiler=Author] text
 920
 921         $t_wrote = t('$1 wrote:');
 922
 923         // handle nested quotes
 924         $endlessloop = 0;
 925         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
 926                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
 927                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
 928                                      $Text);
 929
 930         // Declare the format for [quote] layout
 931         $QuoteLayout = '<blockquote>$1</blockquote>';
 932
 933         // Check for [quote] text
 934         // handle nested quotes
 935         $endlessloop = 0;
 936         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
 937                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
 938
 939         // Check for [quote=Author] text
 940
 941         $t_wrote = t('$1 wrote:');
 942
 943         // handle nested quotes
 944         $endlessloop = 0;
 945         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
 946                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
 947                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
 948                                      $Text);
 949
 950         // [img=widthxheight]image source[/img]
 951         //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
 952         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
 953         $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
 954
 955         // Images
 956         // [img]pathtoimage[/img]
 957         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 958         $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 959
 960         // Shared content
 961         $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
 962                 function ($match) use ($simplehtml){
 963                         return(bb_ShareAttributes($match, $simplehtml));
 964                 },$Text);
 965
 966         $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);
 967         $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 />', $Text);
 968         //$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 />', $Text);
 969
 970
 971         // Try to Oembed
 972         if ($tryoembed) {
 973                 $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);
 974                 $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);
 975
 976                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
 977                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
 978         } else {
 979                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
 980                                         '<a href="$1" target="_blank">$1</a>', $Text);
 981                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
 982                                         '<a href="$1" target="_blank">$1</a>', $Text);
 983         }
 984
 985         // html5 video and audio
 986
 987
 988         if ($tryoembed)
 989                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
 990         else
 991                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
 992
 993         // Youtube extensions
 994         if ($tryoembed) {
 995                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 996                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 997                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
 998         }
 999
1000         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1001         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1002         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
1003
1004         if ($tryoembed)
1005                 $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);
1006         else
1007                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1008                                         '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $Text);
1009
1010         if ($tryoembed) {
1011                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1012                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
1013         }
1014
1015         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1016         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
1017
1018         if ($tryoembed)
1019                 $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);
1020         else
1021                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1022                                         '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $Text);
1023
1024 //      $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);
1025
1026
1027         // oembed tag
1028         $Text = oembed_bbcode2html($Text);
1029
1030         // Avoid triple linefeeds through oembed
1031         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
1032
1033         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1034         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1035         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1036         // start which is always required). Allow desc with a missing summary for compatibility.
1037
1038         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
1039                 $sub = format_event_html($ev);
1040
1041                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
1042                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
1043                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
1044                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
1045                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
1046                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
1047         }
1048
1049         // Unhide all [noparse] contained bbtags unspacefying them
1050         // and triming the [noparse] tag.
1051
1052         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
1053         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
1054         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
1055
1056
1057         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
1058         $Text = preg_replace('/\&\#039\;/','\'',$Text);
1059         $Text = preg_replace('/\&quot\;/','"',$Text);
1060
1061         // fix any escaped ampersands that may have been converted into links
1062         $Text = preg_replace("/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
1063         $Text = preg_replace("/\<([^>]*?)(src|href)=\"(?!http|ftp|mailto|cid)(.*?)\>/ism",'<$1$2="">',$Text);
1064
1065         if($saved_image)
1066                 $Text = bb_replace_images($Text, $saved_image);
1067
1068         // Clean up the HTML by loading and saving the HTML with the DOM
1069         // Only do it when it has to be done - for performance reasons
1070         // Update: Now it is done every time - since bad structured html can break a whole page
1071         //if (!$tryoembed) {
1072         //      $doc = new DOMDocument();
1073         //      $doc->preserveWhiteSpace = false;
1074
1075         //      $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1076
1077         //      $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1078         //      @$doc->loadHTML($doctype."<html><body>".$Text."</body></html>");
1079
1080         //      $Text = $doc->saveHTML();
1081         //      $Text = str_replace(array("<html><body>", "</body></html>", $doctype), array("", "", ""), $Text);
1082
1083         //      $Text = str_replace('<br></li>','</li>', $Text);
1084
1085         //      $Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1086         //}
1087
1088         // Clean up some useless linebreaks in lists
1089         //$Text = str_replace('<br /><ul','<ul ', $Text);
1090         //$Text = str_replace('</ul><br />','</ul>', $Text);
1091         //$Text = str_replace('</li><br />','</li>', $Text);
1092         //$Text = str_replace('<br /><li>','<li>', $Text);
1093         //      $Text = str_replace('<br /><ul','<ul ', $Text);
1094
1095         // Remove all hashtag addresses
1096 /*      if (!$tryoembed AND get_config("system", "remove_hashtags_on_export")) {
1097                 $pattern = '/#<a.*?href="(.*?)".*?>(.*?)<\/a>/is';
1098                 $Text = preg_replace($pattern, '#$2', $Text);
1099         }
1100 */
1101         call_hooks('bbcode',$Text);
1102
1103         $a->save_timestamp($stamp1, "parser");
1104
1105         return $Text;
1106 }
1107 ?>