include/bbcode.php

   1 <?php
   2 require_once("include/oembed.php");
   3 require_once('include/event.php');
   4
   5 function bb_remove_share_information($Text) {
   6         $Text = preg_replace_callback("((.*?)\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanup_share",$Text);
   7         return($Text);
   8 }
   9
  10 function bb_cleanup_share($shared) {
  11         if ($shared[2] != "type-link")
  12                 return($shared[3]);
  13
  14         if (!preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",$shared[3], $bookmark))
  15                 return($shared[3]);
  16
  17         $title = "";
  18         $link = "";
  19
  20         if (isset($bookmark[2][0]))
  21                 $title = $bookmark[2][0];
  22
  23         if (isset($bookmark[1][0]))
  24                 $link = $bookmark[1][0];
  25
  26         if (strpos($shared[1],$title) !== false)
  27                 $title = "";
  28
  29         if (strpos($shared[1],$link) !== false)
  30                 $link = "";
  31
  32         $text = trim($shared[1]);
  33
  34         if (($text == "") AND ($title != "") AND ($link == ""))
  35                 $text .= "\n\n".trim($title);
  36
  37         if (($link != "") AND ($title != ""))
  38                 $text .= "\n[url=".trim($link)."]".trim($title)."[/url]";
  39         elseif (($link != ""))
  40                 $text .= "\n".trim($link);
  41
  42         return(trim($text));
  43 }
  44
  45
  46 function bb_cleanstyle($st) {
  47   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
  48 }
  49
  50 function bb_cleanclass($st) {
  51   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
  52 }
  53
  54 function cleancss($input) {
  55
  56         $cleaned = "";
  57
  58         $input = strtolower($input);
  59
  60         for ($i = 0; $i < strlen($input); $i++) {
  61                 $char = substr($input, $i, 1);
  62
  63                 if (($char >= "a") and ($char <= "z"))
  64                         $cleaned .= $char;
  65
  66                 if (!(strpos(" #;:0123456789-_", $char) === false))
  67                         $cleaned .= $char;
  68         }
  69
  70         return($cleaned);
  71 }
  72
  73 function stripcode_br_cb($s) {
  74         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
  75 }
  76
  77 function tryoembed($match){
  78         $url = ((count($match)==2)?$match[1]:$match[2]);
  79
  80         // Always embed the SSL version
  81         $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
  82                                 array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
  83
  84         //logger("tryoembed: $url");
  85
  86         $o = oembed_fetch_url($url);
  87
  88         //echo "<pre>"; var_dump($match, $url, $o); killme();
  89
  90         if ($o->type=="error") return $match[0];
  91
  92         $html = oembed_format_object($o);
  93         return $html; //oembed_iframe($html,$o->width,$o->height);
  94
  95 }
  96
  97 // [noparse][i]italic[/i][/noparse] turns into
  98 // [noparse][ i ]italic[ /i ][/noparse],
  99 // to hide them from parser.
 100
 101 function bb_spacefy($st) {
 102   $whole_match = $st[0];
 103   $captured = $st[1];
 104   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
 105   $new_str = str_replace($captured, $spacefied, $whole_match);
 106   return $new_str;
 107 }
 108
 109 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
 110 // now turns back and the [noparse] tags are trimed
 111 // returning [i]italic[/i]
 112
 113 function bb_unspacefy_and_trim($st) {
 114   $whole_match = $st[0];
 115   $captured = $st[1];
 116   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
 117   return $unspacefied;
 118 }
 119
 120 function bb_find_open_close($s, $open, $close, $occurance = 1) {
 121
 122         if($occurance < 1)
 123                 $occurance = 1;
 124
 125         $start_pos = -1;
 126         for($i = 1; $i <= $occurance; $i++) {
 127                 if( $start_pos !== false)
 128                         $start_pos = strpos($s, $open, $start_pos + 1);
 129         }
 130
 131         if( $start_pos === false)
 132                 return false;
 133
 134         $end_pos = strpos($s, $close, $start_pos);
 135
 136         if( $end_pos === false)
 137                 return false;
 138
 139         $res = array( 'start' => $start_pos, 'end' => $end_pos );
 140
 141         return $res;
 142 }
 143
 144 function get_bb_tag_pos($s, $name, $occurance = 1) {
 145
 146         if($occurance < 1)
 147                 $occurance = 1;
 148
 149         $start_open = -1;
 150         for($i = 1; $i <= $occurance; $i++) {
 151                 if( $start_open !== false)
 152                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
 153         }
 154
 155         if( $start_open === false)
 156                 return false;
 157
 158         $start_equal = strpos($s, '=', $start_open);
 159         $start_close = strpos($s, ']', $start_open);
 160
 161         if( $start_close === false)
 162                 return false;
 163
 164         $start_close++;
 165
 166         $end_open = strpos($s, '[/' . $name . ']', $start_close);
 167
 168         if( $end_open === false)
 169                 return false;
 170
 171         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
 172                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
 173         if( $start_equal !== false)
 174                 $res['start']['equal'] = $start_equal + 1;
 175
 176         return $res;
 177 }
 178
 179 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
 180
 181         $string = $s;
 182
 183         $occurance = 1;
 184         $pos = get_bb_tag_pos($string, $name, $occurance);
 185         while($pos !== false && $occurance < 1000) {
 186
 187                 $start = substr($string, 0, $pos['start']['open']);
 188                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
 189                 $end = substr($string, $pos['end']['close']);
 190                 if($end === false)
 191                         $end = '';
 192
 193                 $subject = preg_replace($pattern, $replace, $subject);
 194                 $string = $start . $subject . $end;
 195
 196                 $occurance++;
 197                 $pos = get_bb_tag_pos($string, $name, $occurance);
 198         }
 199
 200         return $string;
 201 }
 202
 203 if(! function_exists('bb_extract_images')) {
 204 function bb_extract_images($body) {
 205
 206         $saved_image = array();
 207         $orig_body = $body;
 208         $new_body = '';
 209
 210         $cnt = 0;
 211         $img_start = strpos($orig_body, '[img');
 212         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 213         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 214         while(($img_st_close !== false) && ($img_end !== false)) {
 215
 216                 $img_st_close++; // make it point to AFTER the closing bracket
 217                 $img_end += $img_start;
 218
 219                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 220                         // This is an embedded image
 221
 222                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
 223                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
 224
 225                         $cnt++;
 226                 }
 227                 else
 228                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
 229
 230                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
 231
 232                 if($orig_body === false) // in case the body ends on a closing image tag
 233                         $orig_body = '';
 234
 235                 $img_start = strpos($orig_body, '[img');
 236                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 237                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 238         }
 239
 240         $new_body = $new_body . $orig_body;
 241
 242         return array('body' => $new_body, 'images' => $saved_image);
 243 }}
 244
 245 if(! function_exists('bb_replace_images')) {
 246 function bb_replace_images($body, $images) {
 247
 248         $newbody = $body;
 249
 250         $cnt = 0;
 251         foreach($images as $image) {
 252                 // We're depending on the property of 'foreach' (specified on the PHP website) that
 253                 // it loops over the array starting from the first element and going sequentially
 254                 // to the last element
 255                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . $image .'" alt="' . t('Image/photo') . '" />', $newbody);
 256                 $cnt++;
 257         }
 258
 259         return $newbody;
 260 }}
 261
 262 function bb_ShareAttributes($match) {
 263
 264         $attributes = $match[1];
 265
 266         $author = "";
 267         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 268         if ($matches[1] != "")
 269                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 270
 271         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 272         if ($matches[1] != "")
 273                 $author = $matches[1];
 274
 275         $link = "";
 276         preg_match("/link='(.*?)'/ism", $attributes, $matches);
 277         if ($matches[1] != "")
 278                 $link = $matches[1];
 279
 280         preg_match('/link="(.*?)"/ism', $attributes, $matches);
 281         if ($matches[1] != "")
 282                 $link = $matches[1];
 283
 284         $avatar = "";
 285         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 286         if ($matches[1] != "")
 287                 $avatar = $matches[1];
 288
 289         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 290         if ($matches[1] != "")
 291                 $avatar = $matches[1];
 292
 293         $profile = "";
 294         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 295         if ($matches[1] != "")
 296                 $profile = $matches[1];
 297
 298         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 299         if ($matches[1] != "")
 300                 $profile = $matches[1];
 301
 302         $posted = "";
 303
 304         $itemcache = get_config("system","itemcache");
 305
 306         // relative dates only make sense when they aren't cached
 307         if ($itemcache == "") {
 308                 preg_match("/posted='(.*?)'/ism", $attributes, $matches);
 309                 if ($matches[1] != "")
 310                         $posted = $matches[1];
 311
 312                 preg_match('/posted="(.*?)"/ism', $attributes, $matches);
 313                 if ($matches[1] != "")
 314                         $posted = $matches[1];
 315
 316                 $reldate = (($posted) ? " " . relative_date($posted) : '');
 317         }
 318
 319         $headline = '<div class="shared_header">';
 320         //$headline = '<br /><div class="shared_header">';
 321
 322         if ($avatar != "")
 323                 $headline .= '<img src="'.$avatar.'" height="32" width="32" >';
 324
 325         $headline .= sprintf(t('<span><a href="%s" target="external-link">%s</a> wrote the following <a href="%s" target="external-link">post</a>'.$reldate.':</span>'), $profile, $author, $link);
 326
 327         $headline .= "</div>";
 328
 329         $text = $headline.'<blockquote class="shared_content">'.trim($match[2])."</blockquote>";
 330
 331         return($text);
 332 }
 333
 334 // Escpecially for Diaspora (there mustn't be links in the share information)
 335 function bb_ShareAttributesDiaspora($match) {
 336
 337         $attributes = $match[2];
 338
 339         $author = "";
 340         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 341         if ($matches[1] != "")
 342                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 343
 344         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 345         if ($matches[1] != "")
 346                 $author = $matches[1];
 347
 348         $profile = "";
 349         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 350         if ($matches[1] != "")
 351                 $profile = $matches[1];
 352
 353         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 354         if ($matches[1] != "")
 355                 $profile = $matches[1];
 356
 357         $posted = "";
 358 //      preg_match("/posted='(.*?)'/ism", $attributes, $matches);
 359 //      if ($matches[1] != "")
 360 //              $posted = " ".date("Y-m-d H:i", strtotime($matches[1]));
 361 //
 362 //      preg_match('/posted="(.*?)"/ism', $attributes, $matches);
 363 //      if ($matches[1] != "")
 364 //              $posted = " ".date("Y-m-d H:i", strtotime($matches[1]));
 365
 366         $userid = GetProfileUsername($profile,$author);
 367
 368         $headline = '<div class="shared_header">';
 369         $headline .= '<span><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b></span>';
 370         //$headline .= sprintf(t('<span><b>'.
 371         //              html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').
 372         //              '<a href="%s" target="external-link">%s</a>%s:</b></span>'), $profile, $userid, $posted);
 373         $headline .= "</div>";
 374
 375         $text = trim($match[1]);
 376
 377         if ($text != "")
 378                 $text .= "<hr />";
 379
 380         $text .= $headline.'<blockquote class="shared_content">'.trim($match[3])."</blockquote><br />";
 381         //$text .= $headline."<br />".trim($match[3])."<br />";
 382
 383         return($text);
 384 }
 385
 386 // Optimized for Libertree, Wordpress, Tumblr, ...
 387 function bb_ShareAttributesForExport($match) {
 388
 389         $attributes = $match[2];
 390
 391         $author = "";
 392         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 393         if ($matches[1] != "")
 394                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 395
 396         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 397         if ($matches[1] != "")
 398                 $author = $matches[1];
 399
 400         $profile = "";
 401         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 402         if ($matches[1] != "")
 403                 $profile = $matches[1];
 404
 405         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 406         if ($matches[1] != "")
 407                 $profile = $matches[1];
 408
 409         $link = "";
 410         preg_match("/link='(.*?)'/ism", $attributes, $matches);
 411         if ($matches[1] != "")
 412                 $link = $matches[1];
 413
 414         preg_match('/link="(.*?)"/ism', $attributes, $matches);
 415         if ($matches[1] != "")
 416                 $link = $matches[1];
 417
 418         if ($link == "")
 419                 $link = $profile;
 420
 421         $userid = GetProfileUsername($profile,$author);
 422
 423         $headline = '<div class="shared_header">';
 424         $headline .= sprintf(t('<span><b>'.
 425                         html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').
 426                         '<a href="%s" target="external-link">%s</a>%s:</b></span>'), $link, $userid, $posted);
 427         $headline .= "</div>";
 428
 429         $text = trim($match[1]);
 430
 431         if ($text != "")
 432                 $text .= "<hr />";
 433
 434         $text .= $headline.'<blockquote class="shared_content">'.trim($match[3])."</blockquote><br />";
 435
 436         return($text);
 437 }
 438
 439 // Still in use?
 440 function bb_ShareAttributesSimple($match) {
 441
 442         $attributes = $match[1];
 443
 444         $author = "";
 445         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 446         if ($matches[1] != "")
 447                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 448
 449         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 450         if ($matches[1] != "")
 451                 $author = $matches[1];
 452
 453         $profile = "";
 454         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 455         if ($matches[1] != "")
 456                 $profile = $matches[1];
 457
 458         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 459         if ($matches[1] != "")
 460                 $profile = $matches[1];
 461
 462         $userid = GetProfileUsername($profile,$author);
 463
 464         $text = "<br />".html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$match[2]."«";
 465
 466         return($text);
 467 }
 468
 469 // Used for text exports (Twitter, Facebook, Google+)
 470 function bb_ShareAttributesSimple2($match) {
 471
 472         $attributes = $match[1];
 473
 474         $author = "";
 475         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 476         if ($matches[1] != "")
 477                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 478
 479         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 480         if ($matches[1] != "")
 481                 $author = $matches[1];
 482
 483         $profile = "";
 484         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 485         if ($matches[1] != "")
 486                 $profile = $matches[1];
 487
 488         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 489         if ($matches[1] != "")
 490                 $profile = $matches[1];
 491
 492         $userid = GetProfileUsername($profile,$author);
 493
 494         $text = "<br />".html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />".$match[2];
 495
 496         return($text);
 497 }
 498
 499 function GetProfileUsername($profile, $username) {
 500
 501         $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
 502         if ($twitter != $profile)
 503                 return($username." (".$twitter.")");
 504
 505         $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
 506         if ($gplus != $profile)
 507                 return($username." (".$gplus.")");
 508
 509         $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
 510         if ($friendica != $profile)
 511                 return($username." (".$friendica.")");
 512
 513         $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
 514         if ($diaspora != $profile)
 515                 return($username." (".$diaspora.")");
 516
 517         $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
 518         if ($StatusnetHost != $profile) {
 519                 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
 520                 if ($StatusnetUser != $profile) {
 521                         $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
 522                         $user = json_decode($UserData);
 523                         if ($user)
 524                                 return($username." (".$user->screen_name."@".$StatusnetHost.")");
 525                 }
 526         }
 527
 528         // To-Do: Better check for pumpio
 529         $pumpio = preg_replace("=https?://([^/]*).*/(\w*)=ism", "$2@$1", $profile);
 530         if ($pumpio != $profile)
 531                 return($username." (".$pumpio.")");
 532
 533         return($username);
 534 }
 535
 536         // BBcode 2 HTML was written by WAY2WEB.net
 537         // extended to work with Mistpark/Friendica - Mike Macgirvin
 538
 539 function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false) {
 540
 541         $stamp1 = microtime(true);
 542
 543         $a = get_app();
 544
 545         // Hide all [noparse] contained bbtags by spacefying them
 546         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
 547
 548         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
 549         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
 550         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
 551
 552
 553         // Move all spaces out of the tags
 554         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
 555         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
 556
 557         // Extract the private images which use data url's since preg has issues with
 558         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
 559         // in after we've done all the regex matching. We cannot use any preg functions to do this.
 560
 561         $extracted = bb_extract_images($Text);
 562         $Text = $extracted['body'];
 563         $saved_image = $extracted['images'];
 564
 565         // If we find any event code, turn it into an event.
 566         // After we're finished processing the bbcode we'll
 567         // replace all of the event code with a reformatted version.
 568
 569         $ev = bbtoevent($Text);
 570
 571
 572         // Replace any html brackets with HTML Entities to prevent executing HTML or script
 573         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
 574
 575         $Text = str_replace("<", "&lt;", $Text);
 576         $Text = str_replace(">", "&gt;", $Text);
 577
 578         // remove some newlines before the general conversion
 579         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
 580         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
 581
 582         $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
 583         $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
 584
 585         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
 586         if (!$tryoembed)
 587                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
 588
 589         // Convert new line chars to html <br /> tags
 590
 591         // nlbr seems to be hopelessly messed up
 592         //      $Text = nl2br($Text);
 593
 594         // We'll emulate it.
 595
 596         $Text = trim($Text);
 597         $Text = str_replace("\r\n","\n", $Text);
 598
 599         // removing multiplicated newlines
 600         if (get_config("system", "remove_multiplicated_lines")) {
 601                 $search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n");
 602                 $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]");
 603                 do {
 604                         $oldtext = $Text;
 605                         $Text = str_replace($search, $replace, $Text);
 606                 } while ($oldtext != $Text);
 607         }
 608
 609         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
 610
 611         if($preserve_nl)
 612                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
 613
 614
 615
 616         // Set up the parameters for a URL search string
 617         $URLSearchString = "^\[\]";
 618         // Set up the parameters for a MAIL search string
 619         $MAILSearchString = $URLSearchString;
 620
 621
 622         // Perform URL Search
 623         // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
 624         if (!$forplaintext)
 625                 $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
 626         else
 627                 $Text = preg_replace("(\[url\](.*?)\[\/url\])ism","$1",$Text);
 628
 629         if ($tryoembed)
 630                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
 631
 632         $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
 633
 634         if ($tryoembed)
 635                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
 636
 637         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
 638         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
 639         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 640
 641         // Red compatibility, though the link can't be authenticated on Friendica
 642         $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
 643
 644
 645         // we may need to restrict this further if it picks up too many strays
 646         // link acct:user@host to a webfinger profile redirector
 647
 648         $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
 649                 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
 650
 651         // Perform MAIL Search
 652         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
 653         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
 654
 655         // Check for bold text
 656         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
 657
 658         // Check for Italics text
 659         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
 660
 661         // Check for Underline text
 662         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 663
 664         // Check for strike-through text
 665         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 666
 667         // Check for over-line text
 668         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 669
 670         // Check for colored text
 671         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 672
 673         // Check for sized text
 674         // [size=50] --> font-size: 50px (with the unit).
 675         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
 676         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
 677
 678         // Check for centered text
 679         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
 680
 681         // Check for list text
 682         $Text = str_replace("[*]", "<li>", $Text);
 683
 684         // Check for style sheet commands
 685         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
 686
 687         // Check for CSS classes
 688         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
 689
 690         // handle nested lists
 691         $endlessloop = 0;
 692
 693         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
 694                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
 695                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
 696                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
 697                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 698                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 699                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 700                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
 701                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
 702                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
 703                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
 704                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 705                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 706                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
 707         }
 708
 709         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
 710         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 711         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 712         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 713
 714         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 715         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 716
 717         $Text = str_replace('[hr]','<hr />', $Text);
 718
 719         // This is actually executed in prepare_body()
 720
 721         $Text = str_replace('[nosmile]','',$Text);
 722
 723         // Check for font change text
 724         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 725
 726         // Declare the format for [code] layout
 727
 728 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
 729
 730         $CodeLayout = '<code>$1</code>';
 731         // Check for [code] text
 732         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
 733
 734         // Declare the format for [spoiler] layout
 735         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
 736
 737         // Check for [spoiler] text
 738         // handle nested quotes
 739         $endlessloop = 0;
 740         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
 741                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
 742
 743         // Check for [spoiler=Author] text
 744
 745         $t_wrote = t('$1 wrote:');
 746
 747         // handle nested quotes
 748         $endlessloop = 0;
 749         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
 750                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
 751                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
 752                                      $Text);
 753
 754         // Declare the format for [quote] layout
 755         $QuoteLayout = '<blockquote>$1</blockquote>';
 756
 757         // Check for [quote] text
 758         // handle nested quotes
 759         $endlessloop = 0;
 760         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
 761                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
 762
 763         // Check for [quote=Author] text
 764
 765         $t_wrote = t('$1 wrote:');
 766
 767         // handle nested quotes
 768         $endlessloop = 0;
 769         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
 770                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
 771                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
 772                                      $Text);
 773
 774         // [img=widthxheight]image source[/img]
 775         //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
 776         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
 777         $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
 778
 779         // Images
 780         // [img]pathtoimage[/img]
 781         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 782         $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 783
 784         // Shared content
 785         if (!$simplehtml)
 786                 $Text = preg_replace_callback("/\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributes",$Text);
 787         elseif ($simplehtml == 1)
 788                 $Text = preg_replace_callback("/\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributesSimple",$Text);
 789         elseif ($simplehtml == 2)
 790                 $Text = preg_replace_callback("/\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributesSimple2",$Text);
 791         elseif ($simplehtml == 3)
 792                 $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributesDiaspora",$Text);
 793         elseif ($simplehtml == 4)
 794                 $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributesForExport",$Text);
 795
 796         $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);
 797         $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 />', $Text);
 798         //$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 />', $Text);
 799
 800
 801         // Try to Oembed
 802         if ($tryoembed) {
 803                 $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);
 804                 $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);
 805
 806                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
 807                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
 808         } else {
 809                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
 810                                         '<a href="$1" target="external-link">$1</a>', $Text);
 811                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
 812                                         '<a href="$1" target="external-link">$1</a>', $Text);
 813         }
 814
 815         // html5 video and audio
 816
 817
 818         if ($tryoembed)
 819                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
 820         else
 821                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
 822
 823         // Youtube extensions
 824         if ($tryoembed) {
 825                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 826                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 827                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
 828         }
 829
 830         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 831         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 832         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 833
 834         if ($tryoembed)
 835                 $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);
 836         else
 837                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
 838                                         '<a href="https://www.youtube.com/watch?v=$1" target="external-link">https://www.youtube.com/watch?v=$1</a>', $Text);
 839
 840         if ($tryoembed) {
 841                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 842                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 843         }
 844
 845         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 846         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 847
 848         if ($tryoembed)
 849                 $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);
 850         else
 851                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
 852                                         '<a href="https://vimeo.com/$1" target="external-link">https://vimeo.com/$1</a>', $Text);
 853
 854 //      $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);
 855
 856
 857         // oembed tag
 858         $Text = oembed_bbcode2html($Text);
 859
 860         // Avoid triple linefeeds through oembed
 861         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
 862
 863         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
 864         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
 865         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
 866         // start which is always required). Allow desc with a missing summary for compatibility.
 867
 868         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
 869                 $sub = format_event_html($ev);
 870
 871                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
 872                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
 873                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
 874                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
 875                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
 876                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
 877         }
 878
 879         // Unhide all [noparse] contained bbtags unspacefying them
 880         // and triming the [noparse] tag.
 881
 882         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
 883         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
 884         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
 885
 886
 887         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
 888         $Text = preg_replace('/\&\#039\;/','\'',$Text);
 889         $Text = preg_replace('/\&quot\;/','"',$Text);
 890
 891         // fix any escaped ampersands that may have been converted into links
 892         $Text = preg_replace("/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
 893         $Text = preg_replace("/\<([^>]*?)(src|href)=\"(?!http|ftp|mailto|cid)(.*?)\>/ism",'<$1$2="">',$Text);
 894
 895         if($saved_image)
 896                 $Text = bb_replace_images($Text, $saved_image);
 897
 898         // Clean up the HTML by loading and saving the HTML with the DOM
 899         // Only do it when it has to be done - for performance reasons
 900         // Update: Now it is done every time - since bad structured html can break a whole page
 901         //if (!$tryoembed) {
 902         //      $doc = new DOMDocument();
 903         //      $doc->preserveWhiteSpace = false;
 904
 905         //      $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
 906
 907         //      $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
 908         //      @$doc->loadHTML($doctype."<html><body>".$Text."</body></html>");
 909
 910         //      $Text = $doc->saveHTML();
 911         //      $Text = str_replace(array("<html><body>", "</body></html>", $doctype), array("", "", ""), $Text);
 912
 913         //      $Text = str_replace('<br></li>','</li>', $Text);
 914
 915         //      $Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
 916         //}
 917
 918         // Clean up some useless linebreaks in lists
 919         //$Text = str_replace('<br /><ul','<ul ', $Text);
 920         //$Text = str_replace('</ul><br />','</ul>', $Text);
 921         //$Text = str_replace('</li><br />','</li>', $Text);
 922         //$Text = str_replace('<br /><li>','<li>', $Text);
 923         //      $Text = str_replace('<br /><ul','<ul ', $Text);
 924
 925         // Remove all hashtag addresses
 926         if (!$tryoembed AND get_config("system", "remove_hashtags_on_export")) {
 927                 $pattern = '/#<a.*?href="(.*?)".*?>(.*?)<\/a>/is';
 928                 $Text = preg_replace($pattern, '#$2', $Text);
 929         }
 930
 931         call_hooks('bbcode',$Text);
 932
 933         $a->save_timestamp($stamp1, "parser");
 934
 935         return $Text;
 936 }