3 require_once("include/oembed.php");
4 require_once("include/event.php");
5 require_once("library/markdown.php");
6 require_once("include/html2bbcode.php");
7 require_once("include/bbcode.php");
8 require_once("library/html-to-markdown/HTML_To_Markdown.php");
11 // we don't want to support a bbcode specific markdown interpreter
12 // and the markdown library we have is pretty good, but provides HTML output.
13 // So we'll use that to convert to HTML, then convert the HTML back to bbcode,
14 // and then clean up a few Diaspora specific constructs.
16 function diaspora2bb($s) {
18 $s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
20 // Handles single newlines
21 $s = str_replace("\r", '<br>', $s);
23 $s = str_replace("\n", " \n", $s);
25 // Replace lonely stars in lines not starting with it with literal stars
26 $s = preg_replace('/^([^\*]+)\*([^\*]*)$/im', '$1\*$2', $s);
28 // The parser cannot handle paragraphs correctly
29 $s = str_replace(array('</p>', '<p>', '<p dir="ltr">'), array('<br>', '<br>', '<br>'), $s);
31 // Escaping the hash tags
32 $s = preg_replace('/\#([^\s\#])/', '#$1', $s);
36 $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/', '@[url=https://$3/u/$2]$1[/url]', $s);
38 $s = str_replace('#', '#', $s);
40 $search = array(" \n", "\n ");
41 $replace = array("\n", "\n");
44 $s = str_replace($search, $replace, $s);
45 } while ($oldtext != $s);
47 $s = str_replace("\n\n", '<br>', $s);
51 // protect the recycle symbol from turning into a tag, but without unescaping angles and naked ampersands
52 $s = str_replace('♲', html_entity_decode('♲', ENT_QUOTES, 'UTF-8'), $s);
54 // Convert everything that looks like a link to a link
55 $s = preg_replace('/([^\]=]|^)(https?\:\/\/)([a-zA-Z0-9:\/\-?&;.=_~#%$!+,@]+(?<!,))/ism', '$1[url=$2$3]$2$3[/url]', $s);
57 //$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3$4]$2$3$4[/url]',$s);
58 $s = bb_tag_preg_replace('/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism', '[youtube]$2[/youtube]', 'url',$s);
59 $s = bb_tag_preg_replace('/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism', '[youtube]$1[/youtube]', 'url',$s);
60 $s = bb_tag_preg_replace('/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism', '[vimeo]$2[/vimeo]', 'url', $s);
61 $s = bb_tag_preg_replace('/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism', '[vimeo]$1[/vimeo]', 'url', $s);
62 // remove duplicate adjacent code tags
63 $s = preg_replace('/(\[code\])+(.*?)(\[\/code\])+/ism', '[code]$2[/code]', $s);
65 // Don't show link to full picture (until it is fixed)
66 $s = scale_external_images($s, false);
71 function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
75 $OriginalText = $Text;
77 // Since Diaspora is creating a summary for links, this function removes them before posting
79 $Text = bb_remove_share_information($Text);
82 * Transform #tags, strip off the [url] and replace spaces with underscore
84 $URLSearchString = "^\[\]";
85 $Text = preg_replace_callback("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i", create_function('$match',
86 'return \'#\'. str_replace(\' \', \'_\', $match[2]);'
89 // Converting images with size parameters to simple images. Markdown doesn't know it.
90 $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $Text);
92 // Convert it to HTML - don't try oembed
94 $Text = bbcode($Text, $preserve_nl, false, 3);
96 // Add all tags that maybe were removed
97 if (preg_match_all("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",$OriginalText, $tags)) {
99 foreach($tags[2] as $tag) {
100 $tag = html_entity_decode($tag, ENT_QUOTES, 'UTF-8');
101 if (!strpos(html_entity_decode($Text, ENT_QUOTES, 'UTF-8'), "#".$tag))
102 $tagline .= "#".$tag." ";
104 $Text = $Text." ".$tagline;
108 $Text = bbcode($Text, $preserve_nl, false, 4);
110 // mask some special HTML chars from conversation to markdown
111 $Text = str_replace(array('<','>','&'),array('&_lt_;','&_gt_;','&_amp_;'),$Text);
113 // If a link is followed by a quote then there should be a newline before it
114 // Maybe we should make this newline at every time before a quote.
115 $Text = str_replace(array("</a><blockquote>"), array("</a><br><blockquote>"), $Text);
117 $stamp1 = microtime(true);
119 // Now convert HTML to Markdown
120 $Text = new HTML_To_Markdown($Text);
122 // unmask the special chars back to HTML
123 $Text = str_replace(array('&_lt_;','&_gt_;','&_amp_;'),array('<','>','&'),$Text);
125 $a->save_timestamp($stamp1, "parser");
127 // Libertree has a problem with escaped hashtags.
128 $Text = str_replace(array('\#'), array('#'), $Text);
130 // Remove any leading or trailing whitespace, as this will mess up
131 // the Diaspora signature verification and cause the item to disappear
134 call_hooks('bb2diaspora',$Text);
139 function unescape_underscores_in_links($m) {
140 $y = str_replace('\\_','_', $m[2]);
141 return('[' . $m[1] . '](' . $y . ')');
144 function format_event_diaspora($ev) {
148 if(! ((is_array($ev)) && count($ev)))
151 $bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
153 $o = 'Friendica event notification:' . "\n";
155 $o .= '**' . (($ev['summary']) ? bb2diaspora($ev['summary']) : bb2diaspora($ev['desc'])) . '**' . "\n";
157 $o .= t('Starts:') . ' ' . '['
158 . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
159 $ev['start'] , $bd_format ))
160 : day_translate(datetime_convert('UTC', 'UTC',
161 $ev['start'] , $bd_format)))
162 . '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
164 if(! $ev['nofinish'])
165 $o .= t('Finishes:') . ' ' . '['
166 . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
167 $ev['finish'] , $bd_format ))
168 : day_translate(datetime_convert('UTC', 'UTC',
169 $ev['finish'] , $bd_format )))
170 . '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
172 if(strlen($ev['location']))
173 $o .= t('Location:') . bb2diaspora($ev['location'])