X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fbbcode.php;h=ef4a9aa9ba3462747f5ba5a30d69e565e77c077c;hb=4c3e9fde288130259ec3729b310551511c1c8f13;hp=988e75d417be89fee029b8a071f4504e82f1dc6b;hpb=dafc84390db4b57e5958f1af386c778b481c7d04;p=friendica.git diff --git a/include/bbcode.php b/include/bbcode.php index 988e75d417..ef4a9aa9ba 100644 --- a/include/bbcode.php +++ b/include/bbcode.php @@ -47,6 +47,150 @@ function bb_unspacefy_and_trim($st) { return $unspacefied; } +function bb_find_open_close($s, $open, $close, $occurance = 1) { + + if($occurance < 1) + $occurance = 1; + + $start_pos = -1; + for($i = 1; $i <= $occurance; $i++) { + if( $start_pos !== false) + $start_pos = strpos($s, $open, $start_pos + 1); + } + + if( $start_pos === false) + return false; + + $end_pos = strpos($s, $close, $start_pos); + + if( $end_pos === false) + return false; + + $res = array( 'start' => $start_pos, 'end' => $end_pos ); + + return $res; +} + +function get_bb_tag_pos($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 $string; +} + +if(! function_exists('bb_extract_images')) { +function bb_extract_images($body) { + + $saved_image = array(); + $orig_body = $body; + $new_body = ''; + + $cnt = 0; + $img_start = strpos($orig_body, '[img'); + $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false); + $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false); + while(($img_st_close !== false) && ($img_end !== false)) { + + $img_st_close++; // make it point to AFTER the closing bracket + $img_end += $img_start; + + if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) { + // This is an embedded image + + $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close)); + $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]'; + + $cnt++; + } + else + $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]')); + + $orig_body = substr($orig_body, $img_end + strlen('[/img]')); + + if($orig_body === false) // in case the body ends on a closing image tag + $orig_body = ''; + + $img_start = strpos($orig_body, '[img'); + $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false); + $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false); + } + + $new_body = $new_body . $orig_body; + + return array('body' => $new_body, 'images' => $saved_image); +}} + +if(! function_exists('bb_replace_images')) { +function bb_replace_images($body, $images) { + + $newbody = $body; + + $cnt = 0; + foreach($images as $image) { + // We're depending on the property of 'foreach' (specified on the PHP website) that + // it loops over the array starting from the first element and going sequentially + // to the last element + $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '' . t('Image/photo') . '', $newbody); + $cnt++; + } + + return $newbody; +}} + + + // BBcode 2 HTML was written by WAY2WEB.net // extended to work with Mistpark/Friendica - Mike Macgirvin @@ -54,29 +198,25 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { $a = get_app(); - // Hide all [noparse] contained bbtags spacefying them + // Hide all [noparse] contained bbtags by spacefying them + // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image? $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text); $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text); $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text); - // Extract a single private image which uses data url's since preg has issues with - // large data sizes. Stash it away while we do bbcode conversion, and then put it back + // Move all spaces out of the tags + $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text); + $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text); + + // Extract the private images which use data url's since preg has issues with + // large data sizes. Stash them away while we do bbcode conversion, and then put them back // in after we've done all the regex matching. We cannot use any preg functions to do this. - $saved_image = ''; - $img_start = strpos($Text,'[img]data:'); - $img_end = strpos($Text,'[/img]'); - - if($img_start !== false && $img_end !== false && $img_end > $img_start) { - $start_fragment = substr($Text,0,$img_start); - $img_start += strlen('[img]'); - $saved_image = substr($Text,$img_start,$img_end - $img_start); - $end_fragment = substr($Text,$img_end + strlen('[/img]')); -// logger('saved_image: ' . $saved_image,LOGGER_DEBUG); - $Text = $start_fragment . '[$#saved_image#$]' . $end_fragment; - } + $extracted = bb_extract_images($Text); + $Text = $extracted['body']; + $saved_image = $extracted['images']; // If we find any event code, turn it into an event. // After we're finished processing the bbcode we'll @@ -93,11 +233,19 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { // Convert new line chars to html
tags - $Text = nl2br($Text); + // nlbr seems to be hopelessly messed up + // $Text = nl2br($Text); + + // We'll emulate it. + + $Text = str_replace("\r\n","\n", $Text); + $Text = str_replace(array("\r","\n"), array('
','
'), $Text); + if($preserve_nl) $Text = str_replace(array("\n","\r"), array('',''),$Text); + // Set up the parameters for a URL search string $URLSearchString = "^\[\]"; // Set up the parameters for a MAIL search string @@ -158,14 +306,20 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { // Check for list text $Text = str_replace("[*]", "
  • ", $Text); - $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '
  • $1
    • ' ,$Text); + + // Check for style sheet commands + $Text = preg_replace("(\[style=(.*?)\](.*?)\[\/style\])ism","$2",$Text); + + // Check for CSS classes + $Text = preg_replace("(\[class=(.*?)\](.*?)\[\/class\])ism","$2",$Text); // handle nested lists $endlessloop = 0; while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) || ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) || - ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false))) && (++$endlessloop < 20)) { + ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) || + ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) { $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '' ,$Text); $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '' ,$Text); $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '' ,$Text); @@ -175,6 +329,7 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '' ,$Text); $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '' ,$Text); $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '' ,$Text); + $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '
  • $1
    • ' ,$Text); } $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '$1' ,$Text); @@ -196,7 +351,7 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { // Declare the format for [code] layout - $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text); +// $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text); $CodeLayout = '$1'; // Check for [code] text @@ -251,9 +406,14 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '' . t('Image/photo') . '', $Text); + + $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism",'
    ' . t('Encrypted content') . '
    ', $Text); + $Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism",'
    ' . t('Encrypted content') . '
    ', $Text); + + // Try to Oembed if ($tryoembed) { - $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '', $Text); + $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '', $Text); $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '', $Text); $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text); @@ -267,7 +427,7 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { if ($tryoembed) - $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '', $Text); + $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '', $Text); else $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '$1', $Text); @@ -283,7 +443,7 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text); if ($tryoembed) - $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '', $Text); + $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '', $Text); else $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", "http://www.youtube.com/watch?v=$1", $Text); @@ -297,7 +457,7 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text); if ($tryoembed) - $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '', $Text); + $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '', $Text); else $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", "http://vimeo.com/$1", $Text); @@ -307,6 +467,9 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { // oembed tag $Text = oembed_bbcode2html($Text); + // Avoid triple linefeeds through oembed + $Text = str_replace("


    ", "

    ", $Text); + // If we found an event earlier, strip out all the event code and replace with a reformatted version. // Replace the event-start section with the entire formatted event. The other bbcode is stripped. // Summary (e.g. title) is required, earlier revisions only required description (in addition to @@ -332,11 +495,15 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { $Text = preg_replace('/\[\&\;([#a-z0-9]+)\;\]/','&$1;',$Text); + $Text = preg_replace('/\&\#039\;/','\'',$Text); + $Text = preg_replace('/\"\;/','"',$Text); // fix any escaped ampersands that may have been converted into links $Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text); - if(strlen($saved_image)) - $Text = str_replace('[$#saved_image#$]','' . t('Image/photo') . '',$Text); + $Text = preg_replace("/\<(.*?)(src|href)=\"[^hfm](.*?)\>/ism",'<$1$2="">',$Text); + + if($saved_image) + $Text = bb_replace_images($Text, $saved_image); // Clean up the HTML by loading and saving the HTML with the DOM // Only do it when it has to be done - for performance reasons @@ -353,6 +520,8 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { $Text = str_replace(array("", "", $doctype), array("", "", ""), $Text); $Text = str_replace('
    ','', $Text); + + $Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES'); } call_hooks('bbcode',$Text);