include/bbcode.php

   1 <?php
   2
   3 require_once("include/oembed.php");
   4 require_once('include/event.php');
   5
   6 function bb_cleanstyle($st) {
   7   return "<span style=\"".cleancss($st[1]).";\">".$st[2]."</span>";
   8 }
   9
  10 function bb_cleanclass($st) {
  11   return "<span class=\"".cleancss($st[1])."\">".$st[2]."</span>";
  12 }
  13
  14 function cleancss($input) {
  15
  16         $cleaned = "";
  17
  18         $input = strtolower($input);
  19
  20         for ($i = 0; $i < strlen($input); $i++) {
  21                 $char = substr($input, $i, 1);
  22
  23                 if (($char >= "a") and ($char <= "z"))
  24                         $cleaned .= $char;
  25
  26                 if (!(strpos(" #;:0123456789", $char) === false))
  27                         $cleaned .= $char;
  28         }
  29
  30         return($cleaned);
  31 }
  32
  33 function stripcode_br_cb($s) {
  34         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
  35 }
  36
  37 function tryoembed($match){
  38         $url = ((count($match)==2)?$match[1]:$match[2]);
  39 //      logger("tryoembed: $url");
  40
  41         $o = oembed_fetch_url($url);
  42
  43         //echo "<pre>"; var_dump($match, $url, $o); killme();
  44
  45         if ($o->type=="error") return $match[0];
  46
  47         $html = oembed_format_object($o);
  48         return $html; //oembed_iframe($html,$o->width,$o->height);
  49
  50 }
  51
  52 // [noparse][i]italic[/i][/noparse] turns into
  53 // [noparse][ i ]italic[ /i ][/noparse],
  54 // to hide them from parser.
  55
  56 function bb_spacefy($st) {
  57   $whole_match = $st[0];
  58   $captured = $st[1];
  59   $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
  60   $new_str = str_replace($captured, $spacefied, $whole_match);
  61   return $new_str;
  62 }
  63
  64 // The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
  65 // now turns back and the [noparse] tags are trimed
  66 // returning [i]italic[/i]
  67
  68 function bb_unspacefy_and_trim($st) {
  69   $whole_match = $st[0];
  70   $captured = $st[1];
  71   $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
  72   return $unspacefied;
  73 }
  74
  75 function bb_find_open_close($s, $open, $close, $occurance = 1) {
  76
  77         if($occurance < 1)
  78                 $occurance = 1;
  79
  80         $start_pos = -1;
  81         for($i = 1; $i <= $occurance; $i++) {
  82                 if( $start_pos !== false)
  83                         $start_pos = strpos($s, $open, $start_pos + 1);
  84         }
  85
  86         if( $start_pos === false)
  87                 return false;
  88
  89         $end_pos = strpos($s, $close, $start_pos);
  90
  91         if( $end_pos === false)
  92                 return false;
  93
  94         $res = array( 'start' => $start_pos, 'end' => $end_pos );
  95
  96         return $res;
  97 }
  98
  99 function get_bb_tag_pos($s, $name, $occurance = 1) {
 100
 101         if($occurance < 1)
 102                 $occurance = 1;
 103
 104         $start_open = -1;
 105         for($i = 1; $i <= $occurance; $i++) {
 106                 if( $start_open !== false)
 107                         $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
 108         }
 109
 110         if( $start_open === false)
 111                 return false;
 112
 113         $start_equal = strpos($s, '=', $start_open);
 114         $start_close = strpos($s, ']', $start_open);
 115
 116         if( $start_close === false)
 117                 return false;
 118
 119         $start_close++;
 120
 121         $end_open = strpos($s, '[/' . $name . ']', $start_close);
 122
 123         if( $end_open === false)
 124                 return false;
 125
 126         $res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
 127                       'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
 128         if( $start_equal !== false)
 129                 $res['start']['equal'] = $start_equal + 1;
 130
 131         return $res;
 132 }
 133
 134 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
 135
 136         $string = $s;
 137
 138         $occurance = 1;
 139         $pos = get_bb_tag_pos($string, $name, $occurance);
 140         while($pos !== false && $occurance < 1000) {
 141
 142                 $start = substr($string, 0, $pos['start']['open']);
 143                 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
 144                 $end = substr($string, $pos['end']['close']);
 145                 if($end === false)
 146                         $end = '';
 147
 148                 $subject = preg_replace($pattern, $replace, $subject);
 149                 $string = $start . $subject . $end;
 150
 151                 $occurance++;
 152                 $pos = get_bb_tag_pos($string, $name, $occurance);
 153         }
 154
 155         return $string;
 156 }
 157
 158 if(! function_exists('bb_extract_images')) {
 159 function bb_extract_images($body) {
 160
 161         $saved_image = array();
 162         $orig_body = $body;
 163         $new_body = '';
 164
 165         $cnt = 0;
 166         $img_start = strpos($orig_body, '[img');
 167         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 168         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 169         while(($img_st_close !== false) && ($img_end !== false)) {
 170
 171                 $img_st_close++; // make it point to AFTER the closing bracket
 172                 $img_end += $img_start;
 173
 174                 if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 175                         // This is an embedded image
 176
 177                         $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
 178                         $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
 179
 180                         $cnt++;
 181                 }
 182                 else
 183                         $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
 184
 185                 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
 186
 187                 if($orig_body === false) // in case the body ends on a closing image tag
 188                         $orig_body = '';
 189
 190                 $img_start = strpos($orig_body, '[img');
 191                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 192                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 193         }
 194
 195         $new_body = $new_body . $orig_body;
 196
 197         return array('body' => $new_body, 'images' => $saved_image);
 198 }}
 199
 200 if(! function_exists('bb_replace_images')) {
 201 function bb_replace_images($body, $images) {
 202
 203         $newbody = $body;
 204
 205         $cnt = 0;
 206         foreach($images as $image) {
 207                 // We're depending on the property of 'foreach' (specified on the PHP website) that
 208                 // it loops over the array starting from the first element and going sequentially
 209                 // to the last element
 210                 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . $image .'" alt="' . t('Image/photo') . '" />', $newbody);
 211                 $cnt++;
 212         }
 213
 214         return $newbody;
 215 }}
 216
 217 function bb_ShareAttributes($match) {
 218
 219         $attributes = $match[1];
 220
 221         $author = "";
 222         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 223         if ($matches[1] != "")
 224                 $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 225
 226         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 227         if ($matches[1] != "")
 228                 $author = $matches[1];
 229
 230         $link = "";
 231         preg_match("/link='(.*?)'/ism", $attributes, $matches);
 232         if ($matches[1] != "")
 233                 $link = $matches[1];
 234
 235         preg_match('/link="(.*?)"/ism', $attributes, $matches);
 236         if ($matches[1] != "")
 237                 $link = $matches[1];
 238
 239         $avatar = "";
 240         preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 241         if ($matches[1] != "")
 242                 $avatar = $matches[1];
 243
 244         preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 245         if ($matches[1] != "")
 246                 $avatar = $matches[1];
 247
 248         $profile = "";
 249         preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 250         if ($matches[1] != "")
 251                 $profile = $matches[1];
 252
 253         preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 254         if ($matches[1] != "")
 255                 $profile = $matches[1];
 256
 257         $headline = '<div class="shared_header">';
 258
 259         if ($avatar != "")
 260                 $headline .= '<img src="'.$avatar.'" height="32" width="32" >';
 261
 262         $headline .= sprintf(t('<span><a href="%s" target="external-link">%s</a> wrote the following <a href="%s" target="external-link">post</a>:</span>'), $profile, $author, $link);
 263
 264         $headline .= "</div>";
 265
 266         $text = $headline.'<blockquote class="shared_content">'.trim($match[2])."</blockquote>";
 267
 268         return($text);
 269 }
 270
 271         // BBcode 2 HTML was written by WAY2WEB.net
 272         // extended to work with Mistpark/Friendica - Mike Macgirvin
 273
 274 function bbcode($Text,$preserve_nl = false, $tryoembed = true) {
 275
 276         $a = get_app();
 277
 278         // Hide all [noparse] contained bbtags by spacefying them
 279         // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
 280
 281         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
 282         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
 283         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
 284
 285
 286         // Move all spaces out of the tags
 287         $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
 288         $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
 289
 290         // Extract the private images which use data url's since preg has issues with
 291         // large data sizes. Stash them away while we do bbcode conversion, and then put them back
 292         // in after we've done all the regex matching. We cannot use any preg functions to do this.
 293
 294         $extracted = bb_extract_images($Text);
 295         $Text = $extracted['body'];
 296         $saved_image = $extracted['images'];
 297
 298         // If we find any event code, turn it into an event.
 299         // After we're finished processing the bbcode we'll
 300         // replace all of the event code with a reformatted version.
 301
 302         $ev = bbtoevent($Text);
 303
 304
 305         // Replace any html brackets with HTML Entities to prevent executing HTML or script
 306         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
 307
 308         $Text = str_replace("<", "&lt;", $Text);
 309         $Text = str_replace(">", "&gt;", $Text);
 310
 311         // remove some newlines before the general conversion
 312         $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","[share$1]$2[/share]",$Text);
 313         $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism","[quote$1]$2[/quote]",$Text);
 314
 315         // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
 316         if (!$tryoembed)
 317                 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","\n[share$1$2]$3[/share]",$Text);
 318
 319         // Convert new line chars to html <br /> tags
 320
 321         // nlbr seems to be hopelessly messed up
 322         //      $Text = nl2br($Text);
 323
 324         // We'll emulate it.
 325
 326         $Text = trim($Text);
 327         $Text = str_replace("\r\n","\n", $Text);
 328
 329         // removing multiplicated newlines
 330         $search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]");
 331         $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]");
 332         do {
 333                 $oldtext = $Text;
 334                 $Text = str_replace($search, $replace, $Text);
 335         } while ($oldtext != $Text);
 336
 337         $Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
 338
 339         if($preserve_nl)
 340                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
 341
 342
 343
 344         // Set up the parameters for a URL search string
 345         $URLSearchString = "^\[\]";
 346         // Set up the parameters for a MAIL search string
 347         $MAILSearchString = $URLSearchString;
 348
 349
 350         // Perform URL Search
 351
 352         $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
 353
 354         if ($tryoembed)
 355                 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
 356
 357         $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
 358
 359         if ($tryoembed)
 360                 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
 361
 362         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
 363         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
 364         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
 365
 366         // we may need to restrict this further if it picks up too many strays
 367         // link acct:user@host to a webfinger profile redirector
 368
 369         $Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
 370                 . '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
 371
 372         // Perform MAIL Search
 373         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
 374         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
 375
 376         // Check for bold text
 377         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
 378
 379         // Check for Italics text
 380         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
 381
 382         // Check for Underline text
 383         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 384
 385         // Check for strike-through text
 386         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 387
 388         // Check for over-line text
 389         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 390
 391         // Check for colored text
 392         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 393
 394         // Check for sized text
 395         // [size=50] --> font-size: 50px (with the unit).
 396         $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
 397         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
 398
 399         // Check for centered text
 400         $Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
 401
 402         // Check for list text
 403         $Text = str_replace("[*]", "<li>", $Text);
 404
 405         // Check for style sheet commands
 406         $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism","bb_cleanstyle",$Text);
 407
 408         // Check for CSS classes
 409         $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism","bb_cleanclass",$Text);
 410
 411         // handle nested lists
 412         $endlessloop = 0;
 413
 414         while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
 415                ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
 416                ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
 417                ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
 418                 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 419                 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 420                 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 421                 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
 422                 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
 423                 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
 424                 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
 425                 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 426                 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 427                 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
 428         }
 429
 430         $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
 431         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 432         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 433         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 434
 435         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 436         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 437
 438         $Text = str_replace('[hr]','<hr />', $Text);
 439
 440         // This is actually executed in prepare_body()
 441
 442         $Text = str_replace('[nosmile]','',$Text);
 443
 444         // Check for font change text
 445         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 446
 447         // Declare the format for [code] layout
 448
 449 //      $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
 450
 451         $CodeLayout = '<code>$1</code>';
 452         // Check for [code] text
 453         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
 454
 455         // Declare the format for [spoiler] layout
 456         $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
 457
 458         // Check for [spoiler] text
 459         // handle nested quotes
 460         $endlessloop = 0;
 461         while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
 462                 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
 463
 464         // Check for [spoiler=Author] text
 465
 466         $t_wrote = t('$1 wrote:');
 467
 468         // handle nested quotes
 469         $endlessloop = 0;
 470         while ((strpos($Text, "[/spoiler]")!== false)  and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
 471                 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
 472                                      "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
 473                                      $Text);
 474
 475         // Declare the format for [quote] layout
 476         $QuoteLayout = '<blockquote>$1</blockquote>';
 477
 478         // Check for [quote] text
 479         // handle nested quotes
 480         $endlessloop = 0;
 481         while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
 482                 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
 483
 484         // Check for [quote=Author] text
 485
 486         $t_wrote = t('$1 wrote:');
 487
 488         // handle nested quotes
 489         $endlessloop = 0;
 490         while ((strpos($Text, "[/quote]")!== false)  and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
 491                 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
 492                                      "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
 493                                      $Text);
 494
 495         // [img=widthxheight]image source[/img]
 496         //$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
 497         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
 498
 499         // Images
 500         // [img]pathtoimage[/img]
 501         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 502
 503         // Shared content
 504         $Text = preg_replace_callback("/\[share(.*?)\](.*?)\[\/share\]/ism","bb_ShareAttributes",$Text);
 505
 506         $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);
 507         $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 />', $Text);
 508
 509
 510         // Try to Oembed
 511         if ($tryoembed) {
 512                 $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);
 513                 $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);
 514
 515                 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
 516                 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
 517         } else {
 518                 $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '$1', $Text);
 519                 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $Text);
 520         }
 521
 522         // html5 video and audio
 523
 524
 525         if ($tryoembed)
 526                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
 527         else
 528                 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
 529
 530         // Youtube extensions
 531         if ($tryoembed) {
 532                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 533                 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 534                 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
 535         }
 536
 537         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 538         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 539         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 540
 541         if ($tryoembed)
 542                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
 543         else
 544                 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", "http://www.youtube.com/watch?v=$1", $Text);
 545
 546
 547         if ($tryoembed) {
 548                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 549                 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 550         }
 551
 552         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 553         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 554
 555         if ($tryoembed)
 556                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
 557         else
 558                 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", "http://vimeo.com/$1", $Text);
 559
 560 //      $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);
 561
 562
 563         // oembed tag
 564         $Text = oembed_bbcode2html($Text);
 565
 566         // Avoid triple linefeeds through oembed
 567         $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
 568
 569         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
 570         // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
 571         // Summary (e.g. title) is required, earlier revisions only required description (in addition to
 572         // start which is always required). Allow desc with a missing summary for compatibility.
 573
 574         if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
 575                 $sub = format_event_html($ev);
 576
 577                 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
 578                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
 579                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
 580                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
 581                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
 582                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
 583         }
 584
 585         // Unhide all [noparse] contained bbtags unspacefying them
 586         // and triming the [noparse] tag.
 587
 588         $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
 589         $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
 590         $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
 591
 592
 593         $Text = preg_replace('/\[\&amp\;([#a-z0-9]+)\;\]/','&$1;',$Text);
 594         $Text = preg_replace('/\&\#039\;/','\'',$Text);
 595         $Text = preg_replace('/\&quot\;/','"',$Text);
 596
 597         // fix any escaped ampersands that may have been converted into links
 598         $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
 599         $Text = preg_replace("/\<(.*?)(src|href)=\"[^hfm](.*?)\>/ism",'<$1$2="">',$Text);
 600
 601         if($saved_image)
 602                 $Text = bb_replace_images($Text, $saved_image);
 603
 604         // Clean up the HTML by loading and saving the HTML with the DOM
 605         // Only do it when it has to be done - for performance reasons
 606         if (!$tryoembed) {
 607                 $doc = new DOMDocument();
 608                 $doc->preserveWhiteSpace = false;
 609
 610                 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
 611
 612                 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
 613                 @$doc->loadHTML($doctype."<html><body>".$Text."</body></html>");
 614
 615                 $Text = $doc->saveHTML();
 616                 $Text = str_replace(array("<html><body>", "</body></html>", $doctype), array("", "", ""), $Text);
 617
 618                 $Text = str_replace('<br></li>','</li>', $Text);
 619
 620                 $Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
 621         }
 622
 623         call_hooks('bbcode',$Text);
 624
 625         return $Text;
 626 }
 627