array('open' => $start_open, 'close' => $start_close),
'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
if( $start_equal !== false)
$res['start']['equal'] = $start_equal + 1;
return $res;
}
function bb_tag_preg_replace($pattern, $replace, $name, $s) {
$string = $s;
$occurance = 1;
$pos = get_bb_tag_pos($string, $name, $occurance);
while($pos !== false && $occurance < 1000) {
$start = substr($string, 0, $pos['start']['open']);
$subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
$end = substr($string, $pos['end']['close']);
if($end === false)
$end = '';
$subject = preg_replace($pattern, $replace, $subject);
$string = $start . $subject . $end;
$occurance++;
$pos = get_bb_tag_pos($string, $name, $occurance);
}
return $string;
}
function share_shield($m) {
return str_replace($m[1],'!=+=+=!' . base64url_encode($m[1]) . '=+!=+!=',$m[0]);
}
function share_unshield($m) {
$x = str_replace(array('!=+=+=!','=+!=+!='),array('',''),$m[1]);
return str_replace($m[1], base64url_decode($x), $m[0]);
}
function diaspora_mention_callback($matches) {
$webbie = $matches[2];
$link = '';
if($webbie) {
$r = q("select * from hubloc left join xchan on hubloc_hash = xchan_hash where hubloc_addr = '%s' limit 1",
dbesc($webbie)
);
if($r)
$link = $r[0]['xchan_url'];
}
if(! $link)
$link = 'https://' . $matches[3] . '/u/' . $matches[2];
return '@[url=' . $link . ']' . trim($matches[1]) . '[/url]';
}
// 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 diaspora2bb($s,$use_zrl = false) {
$s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
// Too many new lines. So deactivated the following line
// $s = str_replace("\r","\n",$s);
// Simply remove cr.
$s = str_replace("\r","",$s);
//
is invalid. Replace it with the valid expression
$s = str_replace("
","
",$s);
$s = str_replace("\n","
",$s);
// $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
$s = preg_replace_callback('/\@\{(.+?)\; (.+?)\@(.+?)\}/','diaspora_mention_callback',$s);
// Escaping the hash tags - doesn't always seem to work
// $s = preg_replace('/\#([^\s\#])/','\\#$1',$s);
// This seems to work
$s = preg_replace('/\#([^\s\#])/','#$1',$s);
$s = preg_replace_callback('/\[share(.*?)\]/ism','share_shield',$s);
$s = Markdown($s);
$s = str_replace('#','#',$s);
// we seem to have double linebreaks
// $s = str_replace("\n",'
',$s);
$s = html2bbcode($s);
// $s = str_replace('*','*',$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);
// Convert everything that looks like a link to a link
if($use_zrl) {
$s = str_replace(array('[img','/img]'),array('[zmg','/zmg]'),$s);
$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[zrl=$2$3]$2$3[/zrl]',$s);
}
else {
$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3]$2$3[/url]',$s);
}
//$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);
$s = preg_replace_callback('/\[share(.*?)\]/ism','share_unshield',$s);
// Don't show link to full picture (until it is fixed)
$s = scale_external_images($s, false);
return $s;
}
function stripdcode_br_cb($s) {
return '[code]' . str_replace('
', "\n\t", $s[1]) . '[/code]';
}
//////////////////////
// The following "diaspora_ul" and "diaspora_ol" are only appropriate for the
// pre-Markdownify conversion. If Markdownify isn't used, use the non-Markdownify
// versions below
//////////////////////
/*
function diaspora_ul($s) {
// Replace "[*]" followed by any number (including zero) of
// spaces by "* " to match Diaspora's list format
if( strpos($s[0], "[list]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "* ", $s[1]) . '
';
elseif( strpos($s[0], "[ul]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "* ", $s[1]) . '
';
else
return $s[0];
}
function diaspora_ol($s) {
// A hack: Diaspora will create a properly-numbered ordered list even
// if you use '1.' for each element of the list, like:
// 1. First element
// 1. Second element
// 1. Third element
if( strpos($s[0], "[list=1]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '
';
elseif( strpos($s[0], "[list=i]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '
';
elseif( strpos($s[0], "[list=I]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '
';
elseif( strpos($s[0], "[list=a]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '
';
elseif( strpos($s[0], "[list=A]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '
';
elseif( strpos($s[0], "[ol]") === 0 )
return '' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '
';
else
return $s[0];
}
*/
//////////////////////
// Non-Markdownify versions of "diaspora_ol" and "diaspora_ul"
//////////////////////
function diaspora_ul($s) {
// Replace "[\\*]" followed by any number (including zero) of
// spaces by "* " to match Diaspora's list format
return preg_replace("/\[\\\\\*\]( *)/", "* ", $s[1]);
}
function diaspora_ol($s) {
// A hack: Diaspora will create a properly-numbered ordered list even
// if you use '1.' for each element of the list, like:
// 1. First element
// 1. Second element
// 1. Third element
return preg_replace("/\[\\\\\*\]( *)/", "1. ", $s[1]);
}
function bb2dmention_callback($match) {
$r = q("select xchan_addr from xchan where xchan_url = '%s'",
dbesc($match[2])
);
if($r)
return '@{' . $match[3] . ' ; ' . $r[0]['xchan_addr'] . '}';
return '@' . $match[3];
}
function bb2diaspora_itembody($item) {
if($item['diaspora_meta']) {
$j = json_decode($item['diaspora_meta'],true);
if($j && $j['body']) {
return $j['body'];
}
}
if(array_key_exists('item_flags',$item) && ($item['item_flags'] & ITEM_OBSCURED)) {
$key = get_config('system','prvkey');
$title = (($item['title']) ? crypto_unencapsulate(json_decode($item['title'],true),$key) : '');
$body = (($item['body']) ? crypto_unencapsulate(json_decode($item['body'],true),$key) : '');
}
$body = preg_replace('/\#\^http/i', 'http', $body);
// protect tags and mentions from hijacking
if(intval(get_pconfig($item['uid'],'system','prevent_tag_hijacking'))) {
$new_tag = html_entity_decode('⋕',ENT_COMPAT,'UTF-8');
$new_mention = html_entity_decode('＠',ENT_COMPAT,'UTF-8');
// #-tags
$body = preg_replace('/\#\[url/i', $new_tag . '[url', $body);
$body = preg_replace('/\#\[zrl/i', $new_tag . '[zrl', $body);
// @-mentions
$body = preg_replace('/\@\!?\[url/i', $new_mention . '[url', $body);
$body = preg_replace('/\@\!?\[zrl/i', $new_mention . '[zrl', $body);
}
// remove multiple newlines
do {
$oldbody = $body;
$body = str_replace("\n\n\n", "\n\n", $body);
} while ($oldbody != $body);
$body = bb2diaspora($body);
if(strlen($title))
$body = "## " . $title . "\n\n" . $body;
if($item['attach']) {
$cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism',$item['attach'],$matches,PREG_SET_ORDER);
if(cnt) {
$body .= "\n" . t('Attachments:') . "\n";
foreach($matches as $mtch) {
$body .= '[' . $mtch[3] . '](' . $mtch[1] . ')' . "\n";
}
}
}
return html_entity_decode($body);
}
function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
// Re-enabling the converter again.
// The bbcode parser now handles youtube-links (and the other stuff) correctly.
// Additionally the html code is now fixed so that lists are now working.
/**
* Transform #tags, strip off the [url] and replace spaces with underscore
*/
$Text = preg_replace_callback('/#\[([zu])rl\=(\w+.*?)\](\w+.*?)\[\/[(zu)]rl\]/i', create_function('$match',
'return \'#\'. str_replace(\' \', \'_\', $match[3]);'
), $Text);
$Text = preg_replace_callback('/#\^\[([zu])rl\=(\w+.*?)\](\w+.*?)\[\/[(zu)]rl\]/i', create_function('$match',
'return str_replace(\' \', \'_\', $match[3]);'
), $Text);
$Text = preg_replace_callback('/\@\!?\[([zu])rl\=(\w+.*?)\](\w+.*?)\[\/([zu])rl\]/i', 'bb2dmention_callback', $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]', $Text);
// the following was added on 10-January-2012 due to an inability of Diaspora's
// new javascript markdown processor to handle links with images as the link "text"
// It is not optimal and may be removed if this ability is restored in the future
//if ($fordiaspora)
// $Text = preg_replace("/\[url\=([^\[\]]*)\]\s*\[img\](.*?)\[\/img\]\s*\[\/url\]/ism",
// "[url]$1[/url]\n[img]$2[/img]", $Text);
// Convert it to HTML - don't try oembed
$Text = bbcode($Text, $preserve_nl, false);
// Now convert HTML to Markdown
$md = new Markdownify(false, false, false);
$Text = $md->parseString($Text);
// 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: , which gets removed by strip_tags().
// So take off the angle brackets of any such URL
$Text = preg_replace("//is", "http$1", $Text);
// Remove all unconverted tags
$Text = strip_tags($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);
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) {
$a = get_app();
if(! ((is_array($ev)) && count($ev)))
return '';
$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
$o = 'Friendica event notification:' . "\n";
$o .= '**' . (($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)))
. '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
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 )))
. '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
if(strlen($ev['location']))
$o .= t('Location:') . bb2diaspora($ev['location'])
. "\n";
$o .= "\n";
return $o;
}