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
  15         $o = oembed_fetch_url($url);
  16
  17         //echo "<pre>"; var_dump($match, $url, $o); killme();
  18
  19         if ($o->type=="error") return $match[0];
  20
  21         $html = oembed_format_object($o);
  22         return $html; //oembed_iframe($html,$o->width,$o->height);
  23
  24 }
  25
  26
  27
  28         // BBcode 2 HTML was written by WAY2WEB.net
  29         // extended to work with Mistpark/Friendika - Mike Macgirvin
  30
  31 function bbcode($Text,$preserve_nl = false) {
  32
  33
  34         // Extract a single private image which uses data url's since preg has issues with
  35         // large data sizes. Stash it away while we do bbcode conversion, and then put it back
  36         // in after we've done all the regex matching. We cannot use any preg functions to do this.
  37
  38         $saved_image = '';
  39         $img_start = strpos($Text,'[img]data:');
  40         $img_end = strpos($Text,'[/img]');
  41
  42         if($img_start !== false && $img_end !== false && $img_end > $img_start) {
  43                 $start_fragment = substr($Text,0,$img_start);
  44                 $img_start += strlen('[img]');
  45                 $saved_image = substr($Text,$img_start,$img_end - $img_start);
  46                 $end_fragment = substr($Text,$img_end + strlen('[/img]'));
  47 //              logger('saved_image: ' . $saved_image,LOGGER_DEBUG);
  48                 $Text = $start_fragment . '[$#saved_image#$]' . $end_fragment;
  49         }
  50
  51         // If we find any event code, turn it into an event.
  52         // After we're finished processing the bbcode we'll
  53         // replace all of the event code with a reformatted version.
  54
  55         $ev = bbtoevent($Text);
  56
  57
  58         // Replace any html brackets with HTML Entities to prevent executing HTML or script
  59         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
  60
  61         $Text = str_replace("<", "&lt;", $Text);
  62         $Text = str_replace(">", "&gt;", $Text);
  63
  64         // Convert new line chars to html <br /> tags
  65
  66         $Text = nl2br($Text);
  67         if($preserve_nl)
  68                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
  69
  70
  71         // Set up the parameters for a URL search string
  72         $URLSearchString = "^\[\]";
  73         // Set up the parameters for a MAIL search string
  74         $MAILSearchString = $URLSearchString;
  75
  76
  77         // Perform URL Search
  78
  79         $Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
  80
  81         $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
  82         $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
  83
  84         $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
  85         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
  86         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
  87         //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
  88
  89
  90         // Perform MAIL Search
  91         $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
  92         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
  93
  94         // Check for bold text
  95         $Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
  96
  97         // Check for Italics text
  98         $Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
  99
 100         // Check for Underline text
 101         $Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
 102
 103         // Check for strike-through text
 104         $Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
 105
 106         // Check for over-line text
 107         $Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
 108
 109         // Check for colored text
 110         $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
 111
 112         // Check for sized text
 113         $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
 114
 115         // Check for list text
 116
 117         if(stristr($Text,'[/list]'))
 118                 $Text = str_replace("[*]", "<li>", $Text);
 119
 120         if(stristr($Text,'[/list]'))
 121                 $Text = str_replace("[*]", "<li>", $Text);
 122
 123         $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
 124         $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
 125         $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
 126         $Text = preg_replace("/\[list=i\](.*?)\[\/list\]/sm",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$1</ul>' ,$Text);
 127         $Text = preg_replace("/\[list=I\](.*?)\[\/list\]/sm", '<ul class="listupperroman" style="list-style-type: upper-roman;">$1</ul>' ,$Text);
 128         $Text = preg_replace("/\[list=a\](.*?)\[\/list\]/sm", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$1</ul>' ,$Text);
 129         $Text = preg_replace("/\[list=A\](.*?)\[\/list\]/sm", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$1</ul>' ,$Text);
 130         $Text = preg_replace("/\[li\](.*?)\[\/li\]/sm", '<li>$1</li>' ,$Text);
 131
 132         $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
 133         $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
 134         $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
 135
 136         $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
 137         $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
 138
 139
 140
 141         // Check for font change text
 142         $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
 143
 144         // Declare the format for [code] layout
 145
 146         $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
 147
 148         $CodeLayout = '<code>$1</code>';
 149         // Check for [code] text
 150         $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
 151
 152
 153
 154
 155         // Declare the format for [quote] layout
 156         $QuoteLayout = '<blockquote>$1</blockquote>';
 157         // Check for [quote] text
 158         $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
 159
 160         // [img=widthxheight]image source[/img]
 161         $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
 162
 163         // Images
 164         // [img]pathtoimage[/img]
 165         $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
 166
 167
 168
 169         // Try to Oembed
 170         $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
 171         $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
 172
 173
 174         // html5 video and audio
 175
 176         $Text = preg_replace("/\[video\](.*?)\[\/video\]/ism", '<video src="$1" controls="controls" width="425" height="350"><a href="$1">$1</a></video>', $Text);
 177
 178         $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
 179
 180         $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
 181
 182
 183         /*if (get_pconfig(local_user(), 'oembed', 'use_for_youtube' )==1){
 184                 // use oembed for youtube links
 185                 $Text = preg_replace("/\[youtube\]/",'[embed]',$Text);
 186                 $Text = preg_replace("/\[\/youtube\]/",'[/embed]',$Text);
 187         } else {*/
 188                 // Youtube extensions
 189         $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
 190         $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
 191
 192         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 193         $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 194         $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
 195
 196
 197                 $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);
 198         //}
 199
 200         $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 201         $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
 202
 203         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 204         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
 205         $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="425" height="350" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
 206
 207 //      $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);
 208
 209
 210         // oembed tag
 211         $Text = oembed_bbcode2html($Text);
 212
 213         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
 214
 215         if(x($ev,'desc') && x($ev,'start')) {
 216                 $sub = format_event_html($ev);
 217
 218                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",$sub,$Text);
 219                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",'',$Text);
 220                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
 221                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
 222                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
 223         }
 224
 225         // fix any escaped ampersands that may have been converted into links
 226         $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
 227         if(strlen($saved_image))
 228                 $Text = str_replace('[$#saved_image#$]','<img src="' . $saved_image .'" alt="' . t('Image/photo') . '" />',$Text);
 229
 230         call_hooks('bbcode',$Text);
 231
 232         return $Text;
 233 }