include/bb2diaspora.php

   1 <?php
   2
   3 require_once("include/oembed.php");
   4 require_once('include/event.php');
   5
   6 require_once('library/markdown.php');
   7 require_once('include/html2bbcode.php');
   8
   9 // we don't want to support a bbcode specific markdown interpreter
  10 // and the markdown library we have is pretty good, but provides HTML output.
  11 // So we'll use that to convert to HTML, then convert the HTML back to bbcode,
  12 // and then clean up a few Diaspora specific constructs.
  13
  14 function diaspora2bb($s) {
  15
  16         $s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
  17     $s = str_replace("\r","\n",$s);
  18
  19         $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
  20
  21     $s = preg_replace('/\#([^\s\#])/','\\#$1',$s);
  22
  23         $s = Markdown($s);
  24
  25     $s = str_replace('&#35;','#',$s);
  26     $s = str_replace("\n",'<br />',$s);
  27
  28         $s = html2bbcode($s);
  29 //      $s = str_replace('&#42;','*',$s);
  30
  31
  32     $s = preg_replace("/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism",'[youtube]$2[/youtube]',$s);
  33     $s = preg_replace("/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism",'[youtube]$1[/youtube]',$s);
  34         $s = preg_replace("/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism",'[vimeo]$2[/vimeo]',$s);
  35         $s = preg_replace("/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism",'[vimeo]$1[/vimeo]',$s);
  36         $s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2$3$4[/url]',$s);
  37         // remove duplicate adjacent code tags
  38         $s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism","[code]$2[/code]", $s);
  39         $s = scale_diaspora_images($s);
  40
  41         return $s;
  42 }
  43
  44
  45 function scale_diaspora_images($s,$include_link = true) {
  46
  47         $matches = null;
  48         $c = preg_match_all('/\[img\](.*?)\[\/img\]/ism',$s,$matches,PREG_SET_ORDER);
  49         if($c) {
  50                 require_once('include/Photo.php');
  51                 foreach($matches as $mtch) {
  52                         logger('scale_diaspora_image: ' . $mtch[1]);
  53                         $i = fetch_url($mtch[1]);
  54                         if($i) {
  55                                 $ph = new Photo($i);
  56                                 if($ph->is_valid()) {
  57                                         if($ph->getWidth() > 600 || $ph->getHeight() > 600) {
  58                                                 $ph->scaleImage(600);
  59                                                 $new_width = $ph->getWidth();
  60                                                 $new_height = $ph->getHeight();
  61                                                 logger('scale_diaspora_image: ' . $new_width . 'w ' . $new_height . 'h' . 'match: ' . $mtch[0], LOGGER_DEBUG);
  62                                                 $s = str_replace($mtch[0],'[img=' . $new_width . 'x' . $new_height. ']' . $mtch[1] . '[/img]'
  63                                                         . "\n" . (($include_link)
  64                                                                 ? '[url=' . $mtch[1] . ']' . t('view full size') . '[/url]' . "\n"
  65                                                                 : ''),$s);
  66                                                 logger('scale_diaspora_image: new string: ' . $s, LOGGER_DEBUG);
  67                                         }
  68                                 }
  69                         }
  70                 }
  71         }
  72         return $s;
  73 }
  74
  75 function stripdcode_br_cb($s) {
  76         return '[code]' . str_replace('<br />', "\n\t", $s[1]) . '[/code]';
  77 }
  78
  79
  80
  81 function bb2diaspora($Text,$preserve_nl = false) {
  82
  83         $ev = bbtoevent($Text);
  84
  85         // Replace any html brackets with HTML Entities to prevent executing HTML or script
  86         // Don't use strip_tags here because it breaks [url] search by replacing & with amp
  87
  88         $Text = str_replace("<", "&lt;", $Text);
  89         $Text = str_replace(">", "&gt;", $Text);
  90
  91         // If we find any event code, turn it into an event.
  92         // After we're finished processing the bbcode we'll
  93         // replace all of the event code with a reformatted version.
  94
  95
  96         if($preserve_nl)
  97                 $Text = str_replace(array("\n","\r"), array('',''),$Text);
  98
  99         // Set up the parameters for a URL search string
 100         $URLSearchString = "^\[\]";
 101         // Set up the parameters for a MAIL search string
 102         $MAILSearchString = $URLSearchString;
 103
 104         // Perform URL Search
 105
 106         // [img]pathtoimage[/img]
 107
 108         // the following was added on 10-January-2012 due to an inability of Diaspora's
 109         // new javascript markdown processor to handle links with images as the link "text"
 110         // It is not optimal and may be removed if this ability is restored in the future
 111
 112         $Text = preg_replace("/\[url\=([$URLSearchString]*)\]\[img\](.*?)\[\/img\]\[\/url\]/ism",
 113                 '![' . t('image/photo') . '](' . '$2' . ')' . "\n" . '[' . t('link') . '](' . '$1' . ')', $Text);
 114
 115         $Text = preg_replace("/\[bookmark\]([$URLSearchString]*)\[\/bookmark\]/ism", '[$1]($1)', $Text);
 116         $Text = preg_replace("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism", '[$2]($1)', $Text);
 117
 118         $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '[$1]($1)', $Text);
 119         $Text = preg_replace("/\#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[#$2]($1)', $Text);
 120         $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[$2]($1)', $Text);
 121
 122
 123         $Text = preg_replace("/\[img\](.*?)\[\/img\]/", '![' . t('image/photo') . '](' . '$1' . ')', $Text);
 124         $Text = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/", '![' . t('image/photo') . '](' . '$2' . ')', $Text);
 125
 126         // Perform MAIL Search
 127         $Text = preg_replace("(\[mail\]([$MAILSearchString]*)\[/mail\])", '[$1](mailto:$1)', $Text);
 128         $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '[$2](mailto:$1)', $Text);
 129
 130         $Text = str_replace('*', '\\*', $Text);
 131         $Text = str_replace('_', '\\_', $Text);
 132
 133         $Text = str_replace('`','\\`', $Text);
 134
 135         // Check for bold text
 136         $Text = preg_replace("(\[b\](.*?)\[\/b\])is",'**$1**',$Text);
 137
 138         // Check for Italics text
 139         $Text = preg_replace("(\[i\](.*?)\[\/i\])is",'_$1_',$Text);
 140
 141         // Check for Underline text
 142 //      $Text = preg_replace("(\[u\](.*?)\[\/u\])is",'<u>$1</u>',$Text);
 143
 144         // Check for strike-through text
 145 //      $Text = preg_replace("(\[s\](.*?)\[\/s\])is",'<strike>$1</strike>',$Text);
 146
 147         // Check for over-line text
 148 //      $Text = preg_replace("(\[o\](.*?)\[\/o\])is",'<span class="overline">$1</span>',$Text);
 149
 150         // Check for colored text
 151 //      $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])is","<span style=\"color: $1;\">$2</span>",$Text);
 152
 153         // Check for sized text
 154 //      $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])is","<span style=\"font-size: $1;\">$2</span>",$Text);
 155
 156         // Check for list text
 157 //      $Text = preg_replace("/\[list\](.*?)\[\/list\]/is", '<ul class="listbullet">$1</ul>' ,$Text);
 158 //      $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/is", '<ul class="listdecimal">$1</ul>' ,$Text);
 159 //      $Text = preg_replace("/\[list=i\](.*?)\[\/list\]/s",'<ul class="listlowerroman">$1</ul>' ,$Text);
 160 //      $Text = preg_replace("/\[list=I\](.*?)\[\/list\]/s", '<ul class="listupperroman">$1</ul>' ,$Text);
 161 //      $Text = preg_replace("/\[list=a\](.*?)\[\/list\]/s", '<ul class="listloweralpha">$1</ul>' ,$Text);
 162 //      $Text = preg_replace("/\[list=A\](.*?)\[\/list\]/s", '<ul class="listupperalpha">$1</ul>' ,$Text);
 163 //      $Text = preg_replace("/\[li\](.*?)\[\/li\]/s", '<li>$1</li>' ,$Text);
 164
 165 //      $Text = preg_replace("/\[td\](.*?)\[\/td\]/s", '<td>$1</td>' ,$Text);
 166 //      $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/s", '<tr>$1</tr>' ,$Text);
 167 //      $Text = preg_replace("/\[table\](.*?)\[\/table\]/s", '<table>$1</table>' ,$Text);
 168
 169 //      $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/s", '<table border="1" >$1</table>' ,$Text);
 170 //      $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/s", '<table border="0" >$1</table>' ,$Text);
 171
 172
 173 //      $Text = str_replace("[*]", "<li>", $Text);
 174
 175         // Check for font change text
 176 //      $Text = preg_replace("(\[font=(.*?)\](.*?)\[\/font\])","<span style=\"font-family: $1;\">$2</span>",$Text);
 177
 178
 179     $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/is",'stripdcode_br_cb',$Text);
 180
 181         // Check for [code] text
 182         $Text = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/is","\t$2\n", $Text);
 183
 184
 185
 186
 187         // Declare the format for [quote] layout
 188         //      $QuoteLayout = '<blockquote>$1</blockquote>';
 189         // Check for [quote] text
 190         $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/is",">$1\n\n", $Text);
 191
 192         // Images
 193
 194         // html5 video and audio
 195
 196         $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '$1', $Text);
 197
 198         $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $Text);
 199
 200 //      $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
 201
 202         // [img=widthxheight]image source[/img]
 203 //      $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/", '<img src="$3" style="height:{$2}px; width:{$1}px;" >', $Text);
 204
 205     $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'http://www.youtube.com/watch?v=$1',$Text);
 206     $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'http://www.youtube.com/watch?v=$1',$Text);
 207     $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'http://www.youtube.com/watch?v=$1',$Text);
 208         $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", 'http://www.youtube.com/watch?v=$1', $Text);
 209
 210         $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'http://vimeo.com/$1',$Text);
 211         $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'http://vimeo.com/$1',$Text);
 212         $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", 'http://vimeo.com/$1',$Text);
 213
 214
 215         $Text = str_replace('[nosmile]','',$Text);
 216
 217         // oembed tag
 218         //      $Text = oembed_bbcode2html($Text);
 219
 220         // If we found an event earlier, strip out all the event code and replace with a reformatted version.
 221
 222         if(x($ev,'desc') && x($ev,'start')) {
 223
 224                 $sub = format_event_diaspora($ev);
 225
 226                 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/is",$sub,$Text);
 227                 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/is",'',$Text);
 228                 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/is",'',$Text);
 229                 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/is",'',$Text);
 230                 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/is",'',$Text);
 231         }
 232
 233         $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
 234
 235         $Text = preg_replace('/\[(.*?)\]\((.*?)\\\\_(.*?)\)/ism','[$1]($2_$3)',$Text);
 236
 237         call_hooks('bb2diaspora',$Text);
 238
 239         return $Text;
 240 }
 241
 242 function format_event_diaspora($ev) {
 243
 244         $a = get_app();
 245
 246         if(! ((is_array($ev)) && count($ev)))
 247                 return '';
 248
 249         $bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
 250
 251         $o = 'Friendica event notification:' . "\n";
 252
 253         $o .= '**' . bb2diaspora($ev['desc']) .  '**' . "\n";
 254
 255         $o .= t('Starts:') . ' ' . '['
 256                 . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
 257                         $ev['start'] , $bd_format ))
 258                         :  day_translate(datetime_convert('UTC', 'UTC',
 259                         $ev['start'] , $bd_format)))
 260                 .  '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
 261
 262         if(! $ev['nofinish'])
 263                 $o .= t('Finishes:') . ' ' . '['
 264                         . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
 265                                 $ev['finish'] , $bd_format ))
 266                                 :  day_translate(datetime_convert('UTC', 'UTC',
 267                                 $ev['finish'] , $bd_format )))
 268                         . '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
 269
 270         if(strlen($ev['location']))
 271                 $o .= t('Location:') . bb2diaspora($ev['location'])
 272                         . "\n";
 273
 274         $o .= "\n";
 275         return $o;
 276 }