rename bb2diaspora.php to markdown.php

1 files changed, 0 insertions, 532 deletions

diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
deleted file mode 100644
index 1759154f0..000000000
--- a/include/bb2diaspora.php
+++ /dev/null
@@ -1,532 +0,0 @@
-<?php
-/**
- * @file include/bb2diaspora.php
- * @brief Some functions for BB conversions for Diaspora protocol.
- */
-
-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 $string;
-}
-
-function share_shield($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] . '@' . $matches[3];
-	$link = '';
-	if($webbie) {
-		$r = q("select * from hubloc left join xchan on hubloc_hash = xchan_hash where hubloc_addr = '%s' limit 1",
-			dbesc($webbie)
-		);
-		if(! $r) {
-			$x = discover_by_webbie($webbie);
-			if($x) {
-				$r = q("select * from hubloc left join xchan on hubloc_hash = xchan_hash where hubloc_addr = '%s' limit 1",
-					dbesc($webbie)
-				);
-			}
-		}
-		if($r)
-			$link = $r[0]['xchan_url'];
-	}
-	if(! $link)
-		$link = 'https://' . $matches[3] . '/u/' . $matches[2];
-
-	if($r && $r[0]['hubloc_network'] === 'zot')
-		return '@[zrl=' . $link . ']' . trim($matches[1]) . ((substr($matches[0],-1,1) === '+') ? '+' : '') . '[/zrl]' ;
-	else
-		return '@[url=' . $link . ']' . trim($matches[1]) . ((substr($matches[0],-1,1) === '+') ? '+' : '') . '[/url]' ;
-
-}
-
-
-/**
- * @brief
- *
- * 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.
- *
- * @param string $s
- * @param boolean $use_zrl default false
- * @return string
- */
-function markdown_to_bb($s, $use_zrl = false) {
-
-	$s = str_replace("&#xD;","\r",$s);
-	$s = str_replace("&#xD;\n&gt;","",$s);
-
-	if(is_array($s)) {
-		btlogger('markdown_to_bb called with array. ' . print_r($s,true), LOGGER_NORMAL, LOG_WARNING);
-		return '';
-	}
-
-	$s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
-
-	// if empty link text replace with the url
-	$s = preg_replace("/\[\]\((.*?)\)/ism",'[$1]($1)',$s);
-
-	// first try plustags
-
-	$s = preg_replace_callback('/\@\{(.+?)\; (.+?)\@(.+?)\}\+/','diaspora_mention_callback',$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\#])/','&#35;$1',$s);
-
-	$s = Markdown($s);
-
-	$s = str_replace("\r","",$s);
-
-	$s = str_replace('&#35;','#',$s);
-
-	$s = html2bbcode($s);
-
-	// protect the recycle symbol from turning into a tag, but without unescaping angles and naked ampersands
-	$s = str_replace('&#x2672;',html_entity_decode('&#x2672;',ENT_QUOTES,'UTF-8'),$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);
-	}
-
-	// 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);
-
-	call_hooks('markdown_to_bb',$s);
-
-	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"
-//////////////////////
-/**
- * @brief
- *
- * Replace "[\\*]" followed by any number (including zero) of
- * spaces by "* " to match Diaspora's list format.
- *
- * @param string $s
- * @return string
- */
-function diaspora_ul($s) {
-	return preg_replace("/\[\\\\\*\]( *)/", "* ", $s[1]);
-}
-
-/**
- * @brief
- *
- * A hack: Diaspora will create a properly-numbered ordered list even
- * if you use '1.' for each element of the list, like:
- * \code
- * 1. First element
- * 1. Second element
- * 1. Third element
- * \endcode
- * @param string $s
- * @return string
- */
-function diaspora_ol($s) {
-	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 '@' . $match[3];
-}
-
-
-function bb2diaspora_itemwallwall(&$item,$uplink = false) {
-
-	// We will provide wallwall (embedded author on the Diaspora side) if
-	//  1. It is a wall-to-wall post
-	//  2. A comment arrived which has no Diaspora signature info
-
-
-	$wallwall = false;
-	$author_exists = true;
-
-	if(! array_key_exists('author',$item)) {
-		$author_exists = false;
-		logger('bb2diaspora_itemwallwall: no author');
-		$r = q("select * from xchan where xchan_hash = '%s' limit 1",
-			dbesc($item['author_xchan'])
-		);
-		if($r)
-			$item['author'] = $r[0];
-	}
-
-	$has_meta = false;
-	if($item['diaspora_meta'] || get_iconfig($item,'diaspora','fields'))
-		$has_meta = true;
-
-	if($item['author_xchan'] != $item['owner_xchan']) {
-		if($item['mid'] == $item['parent_mid']) 
-			$wallwall = true;
-		else {
-			if(! $has_meta) {
-				$wallwall = true;
-			}
-		}
-	}
-
-	if($uplink)
-		$wallwall = true;
-
-	if(($wallwall) && (is_array($item['author'])) && $item['author']['xchan_url'] && $item['author']['xchan_name'] && $item['author']['xchan_photo_s']) {
-		logger('bb2diaspora_itemwallwall: wall to wall post',LOGGER_DEBUG);
-		// post will come across with the owner's identity. Throw a preamble onto the post to indicate the true author.
-		$item['body'] = "\n\n" 
-			. '[quote]' 
-			. '[img]' . $item['author']['xchan_photo_s'] . '[/img]' 
-			. ' ' 
-			. '[url=' . $item['author']['xchan_url'] . '][b]' . $item['author']['xchan_name'] . '[/b][/url]' . "\n\n" 
-			. $item['body'] 
-			. '[/quote]';
-	}
-
-	// $item['author'] might cause a surprise further down the line if it wasn't expected to be here.
-
-	if(! $author_exists)
-		unset($item['author']);
-}
-
-
-function bb2diaspora_itembody($item, $force_update = false, $have_channel = false, $uplink = false) {
-
-
-	if(! get_iconfig($item,'diaspora','fields')) {
-		$force_update = true;
-	}
-
-	$matches = array();
-
-	if(($item['diaspora_meta']) && (! $force_update)) {
-		$diaspora_meta = json_decode($item['diaspora_meta'],true);
-		if($diaspora_meta) {
-			if(array_key_exists('iv',$diaspora_meta)) {
-				$key = get_config('system','prvkey');
-				$meta = json_decode(crypto_unencapsulate($diaspora_meta,$key),true);
-			}
-			else {
-				$meta = $diaspora_meta;
-			}
-			if($meta) {
-				logger('bb2diaspora_itembody: cached ');
-				$newitem = $item;
-				$newitem['body'] = $meta['body'];
-				return $newitem['body'];
-			}
-		}
-	}
-
-	create_export_photo_body($item);
-
-	$newitem = $item;
-
-	if(array_key_exists('item_obscured',$item) && intval($item['item_obscured'])) {
-		$key = get_config('system','prvkey');
-		$b = json_decode($item['body'],true);
-		// if called from diaspora_process_outbound, this decoding has already been done.
-		// Everything else that calls us will not yet be decoded.
-		if($b && is_array($b) && array_key_exists('iv',$b)) {
-			$newitem['title'] = (($item['title']) ? crypto_unencapsulate(json_decode($item['title'],true),$key) : '');
-			$newitem['body']  = (($item['body'])  ? crypto_unencapsulate(json_decode($item['body'],true),$key) : '');
-		}
-	}
-
-	if(! $have_channel)
-		bb2diaspora_itemwallwall($newitem,$uplink);
-
-	$title = $newitem['title'];
-	$body  = preg_replace('/\#\^http/i', 'http', $newitem['body']);
-
-	// protect tags and mentions from hijacking
-
-	if(intval(get_pconfig($item['uid'],'system','prevent_tag_hijacking'))) {
-		$new_tag	 = html_entity_decode('&#x22d5;',ENT_COMPAT,'UTF-8');
-		$new_mention = html_entity_decode('&#xff20;',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";
-			}
-		}
-	}
-
-//	logger('bb2diaspora_itembody : ' . $body, LOGGER_DATA);
-
-	return html_entity_decode($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('/#\^\[([zu])rl\=(\w+.*?)\](\w+.*?)\[\/([zu])rl\]/i', '[$1rl=$2]$3[/$4rl]', $Text);
-
-	$Text = preg_replace_callback('/\@\!?\[([zu])rl\=(\w+.*?)\](\w+.*?)\[\/([zu])rl\]/i', 'bb2dmention_callback', $Text);
-
-	// strip map tags, as the rendering is performed in bbcode() and the resulting output
-	// is not compatible with Diaspora (at least in the case of openstreetmap and probably
-	// due to the inclusion of an html iframe)
-
-	$Text = preg_replace("/\[map\=(.*?)\]/ism", '$1', $Text);
-	$Text = preg_replace("/\[map\](.*?)\[\/map\]/ism", '$1', $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);
-
-	// Markdownify does not preserve previously escaped html entities such as <> and &. 
-
-	$Text = str_replace(array('&lt;','&gt;','&amp;'),array('&_lt_;','&_gt_;','&_amp_;'),$Text);
-
-	// Now convert HTML to Markdown
-	$md = new Markdownify(false, false, false);
-	$Text = $md->parseString($Text);
-
-
-
-	// It also adds backslashes to our attempt at getting around the html entity preservation for some weird reason. 
-
-	$Text = str_replace(array('&\\_lt\\_;','&\\_gt\\_;','&\\_amp\\_;'),array('&lt;','&gt;','&amp;'),$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 empty zrl links 
-	$Text = preg_replace("/\[zrl\=\].*?\[\/zrl\]/is", "", $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) {
-
-	if(! ((is_array($ev)) && count($ev)))
-		return '';
-
-	$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
-
-	$o = t('$Projectname 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'] , $bd_format)))
-		.  '](' . z_root() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$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'] , $bd_format )))
-			. '](' . z_root() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
-
-	if(strlen($ev['location']))
-		$o .= t('Location:') . bb2diaspora($ev['location']) 
-			. "\n";
-
-	$o .= "\n";
-
-	return $o;
-}