Merge pull request #447 from fermionic/zrls-and-redir-photos-broken-with-tags
regular expressions were grabbing too much
This commit is contained in:
fermionic
commit
597e96e156
3 changed files with 84 additions and 73 deletions
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@ -8,65 +8,6 @@ require_once("include/bbcode.php");
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require_once("include/markdownify/markdownify.php");
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function get_bb_tag_pos($s, $name, $occurance = 1) {
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if($occurance < 1)
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$occurance = 1;
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$start_open = -1;
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for($i = 1; $i <= $occurance; $i++) {
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if( $start_open !== false)
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$start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
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}
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if( $start_open === false)
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return false;
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$start_equal = strpos($s, '=', $start_open);
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$start_close = strpos($s, ']', $start_open);
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if( $start_close === false)
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return false;
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$start_close++;
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$end_open = strpos($s, '[/' . $name . ']', $start_close);
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if( $end_open === false)
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return false;
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$res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
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'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
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if( $start_equal !== false)
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$res['start']['equal'] = $start_equal + 1;
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return $res;
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}
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function bb_tag_preg_replace($pattern, $replace, $name, $s) {
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$string = $s;
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$occurance = 1;
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$pos = get_bb_tag_pos($string, $name, $occurance);
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while($pos !== false && $occurance < 1000) {
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$start = substr($string, 0, $pos['start']['open']);
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$subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
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$end = substr($string, $pos['end']['close']);
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if($end === false)
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$end = '';
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$subject = preg_replace($pattern, $replace, $subject);
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$string = $start . $subject . $end;
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$occurance++;
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$pos = get_bb_tag_pos($string, $name, $occurance);
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}
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return $string;
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}
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// we don't want to support a bbcode specific markdown interpreter
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// and the markdown library we have is pretty good, but provides HTML output.
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// So we'll use that to convert to HTML, then convert the HTML back to bbcode,
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@ -47,6 +47,65 @@ function bb_unspacefy_and_trim($st) {
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return $unspacefied;
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}
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function get_bb_tag_pos($s, $name, $occurance = 1) {
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if($occurance < 1)
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$occurance = 1;
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$start_open = -1;
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for($i = 1; $i <= $occurance; $i++) {
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if( $start_open !== false)
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$start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
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}
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if( $start_open === false)
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return false;
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$start_equal = strpos($s, '=', $start_open);
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$start_close = strpos($s, ']', $start_open);
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if( $start_close === false)
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return false;
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$start_close++;
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$end_open = strpos($s, '[/' . $name . ']', $start_close);
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if( $end_open === false)
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return false;
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$res = array( 'start' => array('open' => $start_open, 'close' => $start_close),
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'end' => array('open' => $end_open, 'close' => $end_open + strlen('[/' . $name . ']')) );
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if( $start_equal !== false)
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$res['start']['equal'] = $start_equal + 1;
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return $res;
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}
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function bb_tag_preg_replace($pattern, $replace, $name, $s) {
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$string = $s;
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$occurance = 1;
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$pos = get_bb_tag_pos($string, $name, $occurance);
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while($pos !== false && $occurance < 1000) {
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$start = substr($string, 0, $pos['start']['open']);
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$subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
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$end = substr($string, $pos['end']['close']);
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if($end === false)
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$end = '';
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$subject = preg_replace($pattern, $replace, $subject);
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$string = $start . $subject . $end;
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$occurance++;
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$pos = get_bb_tag_pos($string, $name, $occurance);
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}
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return $string;
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}
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if(! function_exists('bb_extract_images')) {
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function bb_extract_images($body) {
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@ -1,5 +1,8 @@
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<?php
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require_once("include/bbcode.php");
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// Note: the code in 'item_extract_images' and 'item_redir_and_replace_images'
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// is identical to the code in mod/message.php for 'item_extract_images' and
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// 'item_redir_and_replace_images'
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@ -51,19 +54,27 @@ function item_redir_and_replace_images($body, $images, $cid) {
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$origbody = $body;
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$newbody = '';
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for($i = 0; $i < count($images); $i++) {
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$search = '/\[url\=(.*?)\]\[!#saved_image' . $i . '#!\]\[\/url\]' . '/is';
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$cnt = 1;
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$pos = get_bb_tag_pos($origbody, 'url', 1);
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while($pos !== false && $cnt < 1000) {
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$search = '/\[url\=(.*?)\]\[!#saved_image([0-9]*)#!\]\[\/url\]' . '/is';
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$replace = '[url=' . z_path() . '/redir/' . $cid
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. '?f=1&url=' . '$1' . '][!#saved_image' . $i . '#!][/url]' ;
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. '?f=1&url=' . '$1' . '][!#saved_image' . '$2' .'#!][/url]';
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$img_end = strpos($origbody, '[!#saved_image' . $i . '#!][/url]') + strlen('[!#saved_image' . $i . '#!][/url]');
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$process_part = substr($origbody, 0, $img_end);
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$origbody = substr($origbody, $img_end);
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$newbody .= substr($origbody, 0, $pos['start']['open']);
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$subject = substr($origbody, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
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$origbody = substr($origbody, $pos['end']['close']);
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if($origbody === false)
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$origbody = '';
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$process_part = preg_replace($search, $replace, $process_part);
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$newbody = $newbody . $process_part;
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$subject = preg_replace($search, $replace, $subject);
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$newbody .= $subject;
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$cnt++;
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$pos = get_bb_tag_pos($origbody, 'url', 1);
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}
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$newbody = $newbody . $origbody;
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$newbody .= $origbody;
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$cnt = 0;
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foreach($images as $image) {
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@ -293,10 +304,10 @@ function localize_item(&$item){
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}
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// add zrl's to public images
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if(preg_match_all('/\[url=(.*?)\/photos\/(.*?)\/image\/(.*?)\]\[img(.*?)\]h(.*?)\[\/img\]\[\/url\]/is',$item['body'],$matches,PREG_SET_ORDER)) {
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foreach($matches as $mtch) {
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$item['body'] = str_replace($mtch[0],'[url=' . zrl($mtch[1] . '/photos/' . $mtch[2] . '/image/' . $mtch[3] ,true) . '][img' . $mtch[4] . ']h' . $mtch[5] . '[/img][/url]',$item['body']);
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}
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$photo_pattern = "/\[url=(.*?)\/photos\/(.*?)\/image\/(.*?)\]\[img(.*?)\]h(.*?)\[\/img\]\[\/url\]/is";
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if(preg_match($photo_pattern,$item['body'])) {
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$photo_replace = '[url=' . zrl('$1' . '/photos/' . '$2' . '/image/' . '$3' ,true) . '][img' . '$4' . ']h' . '$5' . '[/img][/url]';
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$item['body'] = bb_tag_preg_replace($photo_pattern, $photo_replace, 'url', $item['body']);
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}
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// add sparkle links to appropriate permalinks
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