<?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("library/html-to-markdown/HTML_To_Markdown.php");
+// 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.
-function stripdcode_br_cb($s) {
- return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
-}
+function diaspora2bb($s) {
+ $s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
- // BBcode 2 HTML was written by WAY2WEB.net
- // extended to work with Mistpark/Friendika - Mike Macgirvin
+ // Handles single newlines
+ $s = str_replace("\r", '<br>', $s);
-function bb2diaspora($Text,$preserve_nl = false) {
+ $s = str_replace("\n", " \n", $s);
- // 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
+ // Replace lonely stars in lines not starting with it with literal stars
+ $s = preg_replace('/^([^\*]+)\*([^\*]*)$/im', '$1\*$2', $s);
- $Text = str_replace("<", "<", $Text);
- $Text = str_replace(">", ">", $Text);
+ // The parser cannot handle paragraphs correctly
+ $s = str_replace(array('</p>', '<p>', '<p dir="ltr">'), array('<br>', '<br>', '<br>'), $s);
+ // Escaping the hash tags
+ $s = preg_replace('/\#([^\s\#])/', '#$1', $s);
- if($preserve_nl)
- $Text = str_replace(array("\n","\r"), array('',''),$Text);
+ $s = Markdown($s);
- // Set up the parameters for a URL search string
- $URLSearchString = "^\[\]";
- // Set up the parameters for a MAIL search string
- $MAILSearchString = $URLSearchString;
+ $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/', '@[url=https://$3/u/$2]$1[/url]', $s);
- // Perform URL Search
+ $s = str_replace('#', '#', $s);
+ $search = array(" \n", "\n ");
+ $replace = array("\n", "\n");
+ do {
+ $oldtext = $s;
+ $s = str_replace($search, $replace, $s);
+ } while ($oldtext != $s);
+ $s = str_replace("\n\n", '<br>', $s);
- $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/", '[$1]($1)', $Text);
- $Text = preg_replace("(\[url\=([$URLSearchString]*)\](.*?)\[/url\])", '[$2]($1)', $Text);
- //$Text = preg_replace("(\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[/url\])", '[$2]($1)', $Text);
+ $s = html2bbcode($s);
+ // 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);
- // Perform MAIL Search
- $Text = preg_replace("(\[mail\]([$MAILSearchString]*)\[/mail\])", '[$1](mailto:$1)', $Text);
- $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '[$2](mailto:$1)', $Text);
-
- // Check for bold text
- $Text = preg_replace("(\[b\](.*?)\[\/b\])is",'**$1**',$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);
- // Check for Italics text
- $Text = preg_replace("(\[i\](.*?)\[\/i\])is",'_$1_',$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);
- // Check for Underline text
-// $Text = preg_replace("(\[u\](.*?)\[\/u\])is",'<u>$1</u>',$Text);
+ // remove duplicate adjacent code tags
+ $s = preg_replace('/(\[code\])+(.*?)(\[\/code\])+/ism', '[code]$2[/code]', $s);
- // Check for strike-through text
-// $Text = preg_replace("(\[s\](.*?)\[\/s\])is",'<strike>$1</strike>',$Text);
+ // Don't show link to full picture (until it is fixed)
+ $s = scale_external_images($s, false);
- // Check for over-line text
-// $Text = preg_replace("(\[o\](.*?)\[\/o\])is",'<span class="overline">$1</span>',$Text);
+ return $s;
+}
- // Check for colored text
-// $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])is","<span style=\"color: $1;\">$2</span>",$Text);
+function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
- // Check for sized text
-// $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])is","<span style=\"font-size: $1;\">$2</span>",$Text);
+ $a = get_app();
- // 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);
+ $OriginalText = $Text;
-// $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);
+ // Since Diaspora is creating a summary for links, this function removes them before posting
+ if ($fordiaspora)
+ $Text = bb_remove_share_information($Text);
-// $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);
+ /**
+ * 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);
-
-// $Text = str_replace("[*]", "<li>", $Text);
+ // 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);
- // Check for font change text
-// $Text = preg_replace("(\[font=(.*?)\](.*?)\[\/font\])","<span style=\"font-family: $1;\">$2</span>",$Text);
+ // Convert it to HTML - don't try oembed
+ if ($fordiaspora) {
+ $Text = bbcode($Text, $preserve_nl, false, 3);
- // Declare the format for [code] layout
+ // Add all tags that maybe were removed
+ if (preg_match_all("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",$OriginalText, $tags)) {
+ $tagline = "";
+ foreach($tags[2] as $tag) {
+ $tag = html_entity_decode($tag, ENT_QUOTES, 'UTF-8');
+ if (!strpos(html_entity_decode($Text, ENT_QUOTES, 'UTF-8'), "#".$tag))
+ $tagline .= "#".$tag." ";
+ }
+ $Text = $Text." ".$tagline;
+ }
- $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/is",'stripdcode_br_cb',$Text);
+ } else
+ $Text = bbcode($Text, $preserve_nl, false, 4);
-// $CodeLayout = '<code>$1</code>';
- // Check for [code] text
-// $Text = preg_replace("/\[code\](.*?)\[\/code\]/is","$CodeLayout", $Text);
+ // mask some special HTML chars from conversation to markdown
+ $Text = str_replace(array('<','>','&'),array('&_lt_;','&_gt_;','&_amp_;'),$Text);
+ // If a link is followed by a quote then there should be a newline before it
+ // Maybe we should make this newline at every time before a quote.
+ $Text = str_replace(array("</a><blockquote>"), array("</a><br><blockquote>"), $Text);
+ $stamp1 = microtime(true);
+ // Now convert HTML to Markdown
+ $Text = new HTML_To_Markdown($Text);
- // Declare the format for [quote] layout
-// $QuoteLayout = '<blockquote>$1</blockquote>';
- // Check for [quote] text
-// $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/is","$QuoteLayout", $Text);
-
- // Images
- // [img]pathtoimage[/img]
-// $Text = preg_replace("/\[img\](.*?)\[\/img\]/", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
+ // unmask the special chars back to HTML
+ $Text = str_replace(array('&_lt_;','&_gt_;','&_amp_;'),array('<','>','&'),$Text);
- // html5 video and audio
+ $a->save_timestamp($stamp1, "parser");
-// $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '<video src="$1" controls="controls" width="425" height="350"><a href="$1">$1</a></video>', $Text);
+ // Libertree has a problem with escaped hashtags.
+ $Text = str_replace(array('\#'), array('#'), $Text);
-// $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $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("/\[iframe\](.*?)\[\/iframe\]/", '<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;" >', $Text);
+ call_hooks('bb2diaspora',$Text);
-// 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);
+ return $Text;
+}
+function unescape_underscores_in_links($m) {
+ $y = str_replace('\\_','_', $m[2]);
+ return('[' . $m[1] . '](' . $y . ')');
+}
+function format_event_diaspora($ev) {
- // oembed tag
-// $Text = oembed_bbcode2html($Text);
+ if(! ((is_array($ev)) && count($ev)))
+ return '';
- // If we found an event earlier, strip out all the event code and replace with a reformatted version.
+ $bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
-// if(x($ev,'desc') && x($ev,'start')) {
-// $sub = format_event_html($ev);
+ $o = 'Friendica event notification:' . "\n";
- // $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);
-// }
+ $o .= '**' . (($ev['summary']) ? bb2diaspora($ev['summary']) : bb2diaspora($ev['desc'])) . '**' . "\n";
+ $o .= t('Starts:') . ' ' . '['
+ . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
+ $ev['start'] , $bd_format ))
+ : day_translate(datetime_convert('UTC', 'UTC',
+ $ev['start'] , $bd_format)))
+ . '](' . App::get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
-
- call_hooks('bb2diaspora',$Text);
+ if(! $ev['nofinish'])
+ $o .= t('Finishes:') . ' ' . '['
+ . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
+ $ev['finish'] , $bd_format ))
+ : day_translate(datetime_convert('UTC', 'UTC',
+ $ev['finish'] , $bd_format )))
+ . '](' . App::get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
- return $Text;
+ if(strlen($ev['location']))
+ $o .= t('Location:') . bb2diaspora($ev['location'])
+ . "\n";
+
+ $o .= "\n";
+ return $o;
}