<?php
require_once("include/oembed.php");
-require_once('include/event.php');
+require_once("include/event.php");
+require_once("library/markdown.php");
+require_once("include/html2bbcode.php");
+require_once("include/bbcode.php");
+require_once("include/markdownify/markdownify.php");
-require_once('library/markdown.php');
-require_once('include/html2bbcode.php');
-
-function diaspora2bb($s) {
-
- $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
- $s = Markdown($s);
- $s = html2bbcode($s);
- $s = str_replace('*','*',$s);
- $s = preg_replace("/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism",'[youtube]$2[/youtube]',$s);
- $s = preg_replace("/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism",'[youtube]$1[/youtube]',$s);
- $s = preg_replace("/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism",'[vimeo]$2[/vimeo]',$s);
- $s = preg_replace("/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism",'[vimeo]$1[/vimeo]',$s);
- $s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2$3$4[/url]',$s);
- $s = scale_diaspora_images($s);
- return $s;
-}
-
-
-function scale_diaspora_images($s) {
-
- $matches = null;
- $c = preg_match_all('/\[img\](.*?)\[\/img\]/ism',$s,$matches,PREG_SET_ORDER);
- if($c) {
- require_once('include/Photo.php');
- foreach($matches as $mtch) {
- $i = fetch_url($mtch[1]);
- if($i) {
- $ph = new Photo($i);
- if($ph->is_valid()) {
- if($ph->getWidth() > 600 || $ph->getHeight() > 600) {
- $ph->scaleImage(600);
- $new_width = $ph->getWidth();
- $new_height = $ph->getHeight();
- $s = str_replace($mtch[0],'[img=' . $new_width . 'x' . $new_height. ']' . $mtch[1] . '[/img]'
- . "\n" . '[url=' . $mtch[1] . ']' . t('view full size') . '[/url]' . "\n",$s);
- }
- }
- }
- }
- }
- return $s;
-}
-
-function stripdcode_br_cb($s) {
- return '[code]' . str_replace('<br />', "\n\t", $s[1]) . '[/code]';
-}
-
-
- // BBcode 2 HTML was written by WAY2WEB.net
- // extended to work with Mistpark/Friendika - Mike Macgirvin
-
-function bb2diaspora($Text,$preserve_nl = false) {
-
- $ev = bbtoevent($Text);
-
- // Replace any html brackets with HTML Entities to prevent executing HTML or script
- // Don't use strip_tags here because it breaks [url] search by replacing & with amp
-
- $Text = str_replace("<", "<", $Text);
- $Text = str_replace(">", ">", $Text);
-
- // If we find any event code, turn it into an event.
- // After we're finished processing the bbcode we'll
- // replace all of the event code with a reformatted version.
+// we don't want to support a bbcode specific markdown interpreter
+// and the markdown library we have is pretty good, but provides HTML output.
+// So we'll use that to convert to HTML, then convert the HTML back to bbcode,
+// and then clean up a few Diaspora specific constructs.
- if($preserve_nl)
- $Text = str_replace(array("\n","\r"), array('',''),$Text);
-
- // Set up the parameters for a URL search string
- $URLSearchString = "^\[\]";
- // Set up the parameters for a MAIL search string
- $MAILSearchString = $URLSearchString;
-
- // Perform URL Search
-
- // [img]pathtoimage[/img]
-
-
- $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '[$1]($1)', $Text);
- $Text = preg_replace("/\#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[#$2]($1)', $Text);
- $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[$2]($1)', $Text);
-
- $Text = preg_replace("/\[img\](.*?)\[\/img\]/", '![' . t('image/photo') . '](' . '$1' . ')', $Text);
-// $Text = preg_replace("/\[img\](.*?)\[\/img\]/", t('image/photo'), $Text);
-
- // Perform MAIL Search
- $Text = preg_replace("(\[mail\]([$MAILSearchString]*)\[/mail\])", '[$1](mailto:$1)', $Text);
- $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '[$2](mailto:$1)', $Text);
-
- $Text = str_replace('*', '\\*', $Text);
- $Text = str_replace('_', '\\_', $Text);
-
- $Text = str_replace('`','\\`', $Text);
+function diaspora2bb($s) {
- // Check for bold text
- $Text = preg_replace("(\[b\](.*?)\[\/b\])is",'**$1**',$Text);
+ $s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
- // Check for Italics text
- $Text = preg_replace("(\[i\](.*?)\[\/i\])is",'_$1_',$Text);
+ // Simply remove cr.
+ $s = str_replace("\r","",$s);
- // Check for Underline text
-// $Text = preg_replace("(\[u\](.*?)\[\/u\])is",'<u>$1</u>',$Text);
+ // <br/> is invalid. Replace it with the valid expression
+ $s = str_replace(array("<br/>", "</p>", "<p>", '<p dir="ltr">'),array("<br />", "<br />", "<br />", "<br />"),$s);
- // Check for strike-through text
-// $Text = preg_replace("(\[s\](.*?)\[\/s\])is",'<strike>$1</strike>',$Text);
+ $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
- // Check for over-line text
-// $Text = preg_replace("(\[o\](.*?)\[\/o\])is",'<span class="overline">$1</span>',$Text);
+ // Escaping the hash tags
+ $s = preg_replace('/\#([^\s\#])/','#$1',$s);
- // Check for colored text
-// $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])is","<span style=\"color: $1;\">$2</span>",$Text);
+ $s = Markdown($s);
- // Check for sized text
-// $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])is","<span style=\"font-size: $1;\">$2</span>",$Text);
+ $s = str_replace('#','#',$s);
- // Check for list text
-// $Text = preg_replace("/\[list\](.*?)\[\/list\]/is", '<ul class="listbullet">$1</ul>' ,$Text);
-// $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/is", '<ul class="listdecimal">$1</ul>' ,$Text);
-// $Text = preg_replace("/\[list=i\](.*?)\[\/list\]/s",'<ul class="listlowerroman">$1</ul>' ,$Text);
-// $Text = preg_replace("/\[list=I\](.*?)\[\/list\]/s", '<ul class="listupperroman">$1</ul>' ,$Text);
-// $Text = preg_replace("/\[list=a\](.*?)\[\/list\]/s", '<ul class="listloweralpha">$1</ul>' ,$Text);
-// $Text = preg_replace("/\[list=A\](.*?)\[\/list\]/s", '<ul class="listupperalpha">$1</ul>' ,$Text);
-// $Text = preg_replace("/\[li\](.*?)\[\/li\]/s", '<li>$1</li>' ,$Text);
+ $s = html2bbcode($s);
-// $Text = preg_replace("/\[td\](.*?)\[\/td\]/s", '<td>$1</td>' ,$Text);
-// $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/s", '<tr>$1</tr>' ,$Text);
-// $Text = preg_replace("/\[table\](.*?)\[\/table\]/s", '<table>$1</table>' ,$Text);
+ // protect the recycle symbol from turning into a tag, but without unescaping angles and naked ampersands
+ $s = str_replace('♲',html_entity_decode('♲',ENT_QUOTES,'UTF-8'),$s);
-// $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/s", '<table border="1" >$1</table>' ,$Text);
-// $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/s", '<table border="0" >$1</table>' ,$Text);
+ // Convert everything that looks like a link to a link
+ $s = preg_replace("/([^\]\=]|^)(https?\:\/\/)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3]$2$3[/url]',$s);
-
-// $Text = str_replace("[*]", "<li>", $Text);
+ //$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3$4]$2$3$4[/url]',$s);
+ $s = bb_tag_preg_replace("/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism",'[youtube]$2[/youtube]','url',$s);
+ $s = bb_tag_preg_replace("/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism",'[youtube]$1[/youtube]','url',$s);
+ $s = bb_tag_preg_replace("/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism",'[vimeo]$2[/vimeo]','url',$s);
+ $s = bb_tag_preg_replace("/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism",'[vimeo]$1[/vimeo]','url',$s);
+ // remove duplicate adjacent code tags
+ $s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism","[code]$2[/code]", $s);
- // Check for font change text
-// $Text = preg_replace("(\[font=(.*?)\](.*?)\[\/font\])","<span style=\"font-family: $1;\">$2</span>",$Text);
+ // Don't show link to full picture (until it is fixed)
+ $s = scale_external_images($s, false);
- // Declare the format for [code] layout
+ return $s;
+}
- $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/is",'stripdcode_br_cb',$Text);
+function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
- // $CodeLayout = '<code>$1</code>';
- // Check for [code] text
- $Text = preg_replace("/\[code\](.*?)\[\/code\]/is","\t$1\n", $Text);
+ $OriginalText = $Text;
+ // Since Diaspora is creating a summary for links, this function removes them before posting
+ if ($fordiaspora)
+ $Text = bb_remove_share_information($Text);
+ /**
+ * Transform #tags, strip off the [url] and replace spaces with underscore
+ */
+ $URLSearchString = "^\[\]";
+ $Text = preg_replace_callback("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i", create_function('$match',
+ 'return \'#\'. str_replace(\' \', \'_\', $match[2]);'
+ ), $Text);
- // Declare the format for [quote] layout
- // $QuoteLayout = '<blockquote>$1</blockquote>';
- // Check for [quote] text
- $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/is",">$1\n\n", $Text);
-
- // Images
+ // Converting images with size parameters to simple images. Markdown doesn't know it.
+ $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $Text);
- // html5 video and audio
+ // Convert it to HTML - don't try oembed
+ if ($fordiaspora) {
+ $Text = bbcode($Text, $preserve_nl, false, 3);
-// $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '<video src="$1" controls="controls" width="425" height="350"><a href="$1">$1</a></video>', $Text);
+ // Add all tags that maybe were removed
+ if (preg_match_all("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",$OriginalText, $tags)) {
+ $tagline = "";
+ foreach($tags[2] as $tag)
+ if (!strpos($Text, "#".$tag))
+ $tagline .= "#".$tag." ";
-// $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
+ $Text = $Text."<br />".$tagline;
+ }
-// $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
-
- // [img=widthxheight]image source[/img]
-// $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/", '<img src="$3" style="height:{$2}px; width:{$1}px;" >', $Text);
+ } else {
+ $Text = bbcode($Text, $preserve_nl, false, 4);
-// if (get_pconfig(local_user(), 'oembed', 'use_for_youtube' )==1){
-// // use oembed for youtube links
-// $Text = preg_replace("/\[youtube\]/",'[embed]',$Text);
-// $Text = preg_replace("/\[\/youtube\]/",'[/embed]',$Text);
-// } else {
-// // Youtube extensions
- // $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/",'[youtube]$1[/youtube]',$Text);
- // $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/",'[youtube]$1[/youtube]',$Text);
-// $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<iframe width="425" height="349" src="http://www.youtube.com/embed/$1" frameborder="0" allowfullscreen></iframe>', $Text);
-// }
-// $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);
+ // Libertree doesn't convert a harizontal rule if there isn't a linefeed
+ $Text = str_replace(array("<hr />", "<hr>"), array("<br /><hr />", "<br><hr>"), $Text);
+ }
+ // Now convert HTML to Markdown
+ $md = new Markdownify(false, false, false);
+ $Text = $md->parseString($Text);
+ // The Markdownify converter converts underscores '_' in URLs to '\_', which
+ // messes up the URL. Manually fix these
+ $count = 1;
+ $pos = bb_find_open_close($Text, '[', ']', $count);
+ while($pos !== false) {
+ $start = substr($Text, 0, $pos['start']);
+ $subject = substr($Text, $pos['start'], $pos['end'] - $pos['start'] + 1);
+ $end = substr($Text, $pos['end'] + 1);
- // oembed tag
- // $Text = oembed_bbcode2html($Text);
+ $subject = str_replace('\_', '_', $subject);
+ $Text = $start . $subject . $end;
- // If we found an event earlier, strip out all the event code and replace with a reformatted version.
+ $count++;
+ $pos = bb_find_open_close($Text, '[', ']', $count);
+ }
- if(x($ev,'desc') && x($ev,'start')) {
+ // If the text going into bbcode() has a plain URL in it, i.e.
+ // with no [url] tags around it, it will come out of parseString()
+ // looking like: <http://url.com>, which gets removed by strip_tags().
+ // So take off the angle brackets of any such URL
+ $Text = preg_replace("/<http(.*?)>/is", "http$1", $Text);
- $sub = format_event_diaspora($ev);
-
- $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/is",$sub,$Text);
- $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/is",'',$Text);
- $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/is",'',$Text);
- $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/is",'',$Text);
- $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/is",'',$Text);
- }
+ // Remove all unconverted tags
+ $Text = strip_tags($Text);
- $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
+ // Remove any leading or trailing whitespace, as this will mess up
+ // the Diaspora signature verification and cause the item to disappear
+ $Text = trim($Text);
- $Text = preg_replace('/\[(.*?)\]\((.*?)\\\\_(.*?)\)/ism','[$1]($2_$3)',$Text);
-
call_hooks('bb2diaspora',$Text);
return $Text;
}
+function unescape_underscores_in_links($m) {
+ $y = str_replace('\\_','_', $m[2]);
+ return('[' . $m[1] . '](' . $y . ')');
+}
+
function format_event_diaspora($ev) {
$a = get_app();
$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
- $o = 'Friendika event notification:' . "\n";
+ $o = 'Friendica event notification:' . "\n";
- $o .= '**' . bb2diaspora($ev['desc']) . '**' . "\n";
+ $o .= '**' . (($ev['summary']) ? bb2diaspora($ev['summary']) : bb2diaspora($ev['desc'])) . '**' . "\n";
$o .= t('Starts:') . ' ' . '['
. (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',