include/bbcode.php

   1 <?php
   2
   3 require_once("include/oembed.php");
   4 require_once('include/event.php');
   5
   6
   7
   8 function stripcode_br_cb($s) {
   9         return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
  10 }
  11
  12 function tryoembed($match){
  13         $url = ((count($match)==2)?$match[1]:$match[2]);
  14 //      logger("tryoembed: $url");
  15
  16         $o = oembed_fetch_url($url);
  17
  18         //echo "<pre>"; var_dump($match, $url, $o); killme();
  19
  20         if ($o->type=="error") return $match[0];
  21
  22         $html = oembed_format_object($o);
  23         return $html; //oembed_iframe($html,$o->width,$o->height);
  24
  25 }
  26
  27
  28
  29         // BBcode 2 HTML was written by WAY2WEB.net
  30         // extended to work with Mistpark/Friendica - Mike Macgirvin
  31
  32 function bbcode($Text,$preserve_nl = false) {
  33
  34
  35         // Extract a single private image which uses data url's since preg has issues with
  36         // large data sizes. Stash it away while we do bbcode conversion, and then put it back
  37         // in after we've done all the regex matching. We cannot use any preg functions to do this.
  38
  39         $saved_image = '';
  40         $img_start = strpos($Text,'[img]data:');
  41         $img_end = strpos($Text,'[/img]');
  42
  43         if($img_start !== false && $img_end !== false && $img_end > $img_start) {
  44                 $start_fragment = substr($Text,0,$img_start);
  45                 $img_start += strlen('[img]');
  46                 $saved_image = substr($Text,$img_start,$img_end - $img_start);
  47                 $end_fragment = substr($Text,$img_end + strlen('[/img]'));
  48 //              logger('saved_image: ' . $saved_image,LOGGER_DEBUG);
  49                 $Text = $start_fragment . '[$#saved_image#$]' . $end_fragment;
  50         }
  51
  52         // If we find any event code, turn it into an event.
  53         // After we're finished processing the bbcode we'll
  54         // replace all of the event code with a reformatted version.
  55
  56         $ev = bbtoevent($Text);
  57
  58
  59         // Replace any html brackets with HTML Entities to prevent executing HTML or script
  60         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
  61
  62         $Text = str_replace("<", "&lt;", $Text);
  63         $Text = str_replace(">", "&gt;", $Text);
  64
  65         // Convert new line chars to html <br /> tags
  66
  67         $Text = nl2br($Text);
  68         if($preserve_nl)
  69                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
  70
  71
  72         // Set up the parameters for a URL search string
  73         $URLSearchString = "^\[\]";
  74         // Set up the parameters for a MAIL search string
  75         $MAILSearchString = $URLSearchString;
  76
  77
  78         // Perform URL Search
  79
  80         $Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
  81
  82         $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
  83         $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
  84
  85         $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
  86         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
  87         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
  88         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
  89
  90
  91         // Perform MAIL Search
  92         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
  93         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
  94
  95         // Check for bold text
  96         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
  97
  98         // Check for Italics text
  99         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
 100
 101         // Check for Underline text
 102         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 103
 104         // Check for strike-through text
 105         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 106
 107         // Check for over-line text
 108         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 109
 110         // Check for colored text
 111         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 112
 113         // Check for sized text
 114         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
 115
 116         // Check for list text
 117
 118         if(stristr($Text,'[/list]'))
 119                 $Text = str_replace("[*]", "<li>", $Text);
 120
 121         if(stristr($Text,'[/list]'))
 122                 $Text = str_replace("[*]", "<li>", $Text);
 123
 124         $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 125         $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 126         $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 127         $Text = preg_replace("/\[list=i\](.*?)\[\/list\]/sm",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$1</ul>' ,$Text);
 128         $Text = preg_replace("/\[list=I\](.*?)\[\/list\]/sm", '<ul class="listupperroman" style="list-style-type: upper-roman;">$1</ul>' ,$Text);
 129         $Text = preg_replace("/\[list=a\](.*?)\[\/list\]/sm", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$1</ul>' ,$Text);
 130         $Text = preg_replace("/\[list=A\](.*?)\[\/list\]/sm", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$1</ul>' ,$Text);
 131         $Text = preg_replace("/\[li\](.*?)\[\/li\]/sm", '<li>$1</li>' ,$Text);
 132
 133         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 134         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 135         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 136
 137         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 138         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 139
 140
 141
 142         // Check for font change text
 143         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 144
 145         // Declare the format for [code] layout
 146
 147         $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
 148
 149         $CodeLayout = '<code>$1</code>';
 150         // Check for [code] text
 151         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
 152
 153
 154
 155
 156         // Declare the format for [quote] layout
 157         $QuoteLayout = '<blockquote>$1</blockquote>';
 158         // Check for [quote] text
 159         $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
 160
 161         // [img=widthxheight]image source[/img]
 162         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
 163
 164         // Images
 165         // [img]pathtoimage[/img]
 166         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 167
 168
 169
 170         // Try to Oembed
 171         $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
 172         $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
 173
 174
 175         // html5 video and audio
 176
 177         $Text = preg_replace("/\[video\](.*?)\[\/video\]/ism", '<video src="$1" controls="controls" width="425" height="350"><a href="$1">$1</a></video>', $Text);
 178
 179         $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
 180
 181         $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
 182
 183
 184         // Youtube extensions
 185         $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 186         $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 187         $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
 188
 189         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 190         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 191         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 192
 193
 194         $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="425" height="350" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
 195
 196
 197         $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 198         $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 199
 200         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 201         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 202         $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="425" height="350" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
 203
 204 //      $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);
 205
 206
 207         // oembed tag
 208         $Text = oembed_bbcode2html($Text);
 209
 210         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
 211
 212         if(x($ev,'desc') && x($ev,'start')) {
 213                 $sub = format_event_html($ev);
 214
 215                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",$sub,$Text);
 216                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",'',$Text);
 217                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
 218                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
 219                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
 220         }
 221
 222         // fix any escaped ampersands that may have been converted into links
 223         $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
 224         if(strlen($saved_image))
 225                 $Text = str_replace('[$#saved_image#$]','<img src="' . $saved_image .'" alt="' . t('Image/photo') . '" />',$Text);
 226
 227         call_hooks('bbcode',$Text);
 228
 229         return $Text;
 230 }