<?php /** @file */ require_once("include/oembed.php"); require_once("include/event.php"); require_once("library/markdown.php"); require_once("include/html2bbcode.php"); require_once("include/bbcode.php"); require_once("library/markdownify/markdownify.php"); function get_bb_tag_pos($s, $name, $occurance = 1) { if($occurance < 1) $occurance = 1; $start_open = -1; for($i = 1; $i <= $occurance; $i++) { if( $start_open !== false) $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags } if( $start_open === false) return false; $start_equal = strpos($s, '=', $start_open); $start_close = strpos($s, ']', $start_open); if( $start_close === false) return false; $start_close++; $end_open = strpos($s, '[/' . $name . ']', $start_close); if( $end_open === false) return false; $res = array( 'start' => 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 $string; } // we don't want to support a bbcode specific markdown interpreter // and the markdown library we have is pretty good, but provides HTML output. // So we'll use that to convert to HTML, then convert the HTML back to bbcode, // and then clean up a few Diaspora specific constructs. function diaspora2bb($s) { // for testing purposes: Collect raw markdown articles // $file = tempnam("/tmp/friendica/", "markdown"); // file_put_contents($file, $s); $s = html_entity_decode($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); // <br/> is invalid. Replace it with the valid expression $s = str_replace("<br/>","<br />",$s); $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$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); $s = Markdown($s); $s = str_replace('#','#',$s); // we seem to have double linebreaks // $s = str_replace("\n",'<br />',$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 $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); // 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('<br />', "\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 '<ul class="listbullet" style="list-style-type: circle;">' . preg_replace("/\[\*\]( *)/", "* ", $s[1]) . '</ul>'; elseif( strpos($s[0], "[ul]") === 0 ) return '<ul class="listbullet" style="list-style-type: circle;">' . preg_replace("/\[\*\]( *)/", "* ", $s[1]) . '</ul>'; 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 '<ul class="listdecimal" style="list-style-type: decimal;">' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '</ul>'; elseif( strpos($s[0], "[list=i]") === 0 ) return '<ul class="listlowerroman" style="list-style-type: lower-roman;">' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '</ul>'; elseif( strpos($s[0], "[list=I]") === 0 ) return '<ul class="listupperroman" style="list-style-type: upper-roman;">' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '</ul>'; elseif( strpos($s[0], "[list=a]") === 0 ) return '<ul class="listloweralpha" style="list-style-type: lower-alpha;">' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '</ul>'; elseif( strpos($s[0], "[list=A]") === 0 ) return '<ul class="listupperalpha" style="list-style-type: upper-alpha;">' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '</ul>'; elseif( strpos($s[0], "[ol]") === 0 ) return '<ul class="listdecimal" style="list-style-type: decimal;">' . preg_replace("/\[\*\]( *)/", "1. ", $s[1]) . '</ul>'; 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. ", $s[1]); } function bb2diaspora($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('/#\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', create_function('$match', 'return \'#\'. str_replace(\' \', \'_\', $match[2]);' ), $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: <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); // Remove all unconverted tags $Text = strip_tags($Text); /* Old routine $ev = bbtoevent($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(">", ">", $Text); // If we find any event code, turn it into an event. // After we're finished processing the bbcode we'll // replace all of the event code with a reformatted version. if($preserve_nl) $Text = str_replace(array("\n","\r"), array('',''),$Text); else // Remove the "return" character, as Diaspora uses only the "newline" // character, so having the "return" character can cause signature // failures $Text = str_replace("\r", "", $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] // 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 $Text = preg_replace("/\[url\=([$URLSearchString]*)\]\[img\](.*?)\[\/img\]\[\/url\]/ism", '![' . t('image/photo') . '](' . '$2' . ')' . "\n" . '[' . t('link') . '](' . '$1' . ')', $Text); $Text = preg_replace("/\[bookmark\]([$URLSearchString]*)\[\/bookmark\]/ism", '[$1]($1)', $Text); $Text = preg_replace("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism", '[$2]($1)', $Text); $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') . '](' . '$2' . ')', $Text); $Text = preg_replace("/\[zrl\]([$URLSearchString]*)\[\/zrl\]/ism", '[$1]($1)', $Text); $Text = preg_replace("/\#\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '[#$2]($1)', $Text); $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '[$2]($1)', $Text); $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/", '![' . t('image/photo') . '](' . '$1' . ')', $Text); $Text = preg_replace("/\[zmg\=(.*?)\](.*?)\[\/zmg\]/", '![' . t('image/photo') . '](' . '$2' . ')', $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); // Check for bold text $Text = preg_replace("(\[b\](.*?)\[\/b\])is",'**$1**',$Text); // Check for italics text $Text = preg_replace("(\[i\](.*?)\[\/i\])is",'_$1_',$Text); // Check for underline text // Replace with italics since Diaspora doesn't have underline $Text = preg_replace("(\[u\](.*?)\[\/u\])is",'_$1_',$Text); // Check for strike-through text $Text = preg_replace("(\[s\](.*?)\[\/s\])is",'**[strike]**$1**[/strike]**',$Text); // Check for over-line text // $Text = preg_replace("(\[o\](.*?)\[\/o\])is",'<span class="overline">$1</span>',$Text); // Check for colored text // Remove color since Diaspora doesn't support it $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])is","$2",$Text); // Check for sized text // Remove it since Diaspora doesn't support sizes very well $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])is","$2",$Text); // Check for list text $endlessloop = 0; while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) || ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) || ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) || ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) { $Text = preg_replace_callback("/\[list\](.*?)\[\/list\]/is", 'diaspora_ul', $Text); $Text = preg_replace_callback("/\[list=1\](.*?)\[\/list\]/is", 'diaspora_ol', $Text); $Text = preg_replace_callback("/\[list=i\](.*?)\[\/list\]/s",'diaspora_ol', $Text); $Text = preg_replace_callback("/\[list=I\](.*?)\[\/list\]/s", 'diaspora_ol', $Text); $Text = preg_replace_callback("/\[list=a\](.*?)\[\/list\]/s", 'diaspora_ol', $Text); $Text = preg_replace_callback("/\[list=A\](.*?)\[\/list\]/s", 'diaspora_ol', $Text); $Text = preg_replace_callback("/\[ul\](.*?)\[\/ul\]/is", 'diaspora_ul', $Text); $Text = preg_replace_callback("/\[ol\](.*?)\[\/ol\]/is", 'diaspora_ol', $Text); $Text = preg_replace("/\[li\]( *)(.*?)\[\/li\]/s", '* $2' ,$Text); } // Just get rid of table tags since Diaspora doesn't support tables $Text = preg_replace("/\[th\](.*?)\[\/th\]/s", '$1' ,$Text); $Text = preg_replace("/\[td\](.*?)\[\/td\]/s", '$1' ,$Text); $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/s", '$1' ,$Text); $Text = preg_replace("/\[table\](.*?)\[\/table\]/s", '$1' ,$Text); $Text = preg_replace("/\[table border=(.*?)\](.*?)\[\/table\]/s", '$2' ,$Text); // $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/s", '<table border="0" >$1</table>' ,$Text); // $Text = str_replace("[*]", "<li>", $Text); // Check for font change text // $Text = preg_replace("(\[font=(.*?)\](.*?)\[\/font\])","<span style=\"font-family: $1;\">$2</span>",$Text); $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/is",'stripdcode_br_cb',$Text); // Check for [code] text $Text = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/is","\t$2\n", $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); $Text = preg_replace("/\[quote=(.*?)\](.*?)\[\/quote\]/is",">$2\n\n", $Text); // Images // html5 video and audio $Text = preg_replace("/\[video\](.*?)\[\/video\]/", '$1', $Text); $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $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); $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'http://www.youtube.com/watch?v=$1',$Text); $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'http://www.youtube.com/watch?v=$1',$Text); $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'http://www.youtube.com/watch?v=$1',$Text); $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", 'http://www.youtube.com/watch?v=$1', $Text); $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'http://vimeo.com/$1',$Text); $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'http://vimeo.com/$1',$Text); $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", 'http://vimeo.com/$1',$Text); $Text = str_replace('[nosmile]','',$Text); // oembed tag // $Text = oembed_bbcode2html($Text); // If we found an event earlier, strip out all the event code and replace with a reformatted version. if(x($ev,'start')) { $sub = format_event_diaspora($ev); $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/is",'',$Text); $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/is",'',$Text); $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/is",$sub,$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); } $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text); $Text = preg_replace_callback('/\[(.*?)\]\((.*?)\)/ism','unescape_underscores_in_links',$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; }