include/bbcode.php

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