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Diffstat (limited to 'include/bb2diaspora.php')
| -rw-r--r-- | include/bb2diaspora.php | 532 |
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) { - - $s = str_replace("
","\r",$s); - $s = str_replace("
\n>","",$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\#])/','#$1',$s); - - $s = Markdown($s); - - $s = str_replace("\r","",$s); - - $s = str_replace('#','#',$s); - - $s = html2bbcode($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); - - // 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('⋕',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"; - } - } - } - -// 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 &. - - $Text = str_replace(array('<','>','&'),array('&_lt_;','&_gt_;','&_amp_;'),$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. - - $Text = str_replace(array('&\\_lt\\_;','&\\_gt\\_;','&\\_amp\\_;'),array('<','>','&'),$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; -} |