diff options
Diffstat (limited to 'include/bbcode.php')
| -rw-r--r-- | include/bbcode.php | 88 |
1 files changed, 71 insertions, 17 deletions
diff --git a/include/bbcode.php b/include/bbcode.php index 55a879497..6a1c4b043 100644 --- a/include/bbcode.php +++ b/include/bbcode.php @@ -47,6 +47,67 @@ function bb_unspacefy_and_trim($st) { return $unspacefied; } +if(! function_exists('bb_extract_images')) { +function bb_extract_images($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); + $cnt++; + + $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]'; + } + 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' . $cnt . '#$]', '<img src="' . $image .'" alt="' . t('Image/photo') . '" />', $newbody); + $cnt++; + } + + return $newbody; +}} + + + // BBcode 2 HTML was written by WAY2WEB.net // extended to work with Mistpark/Friendica - Mike Macgirvin @@ -54,29 +115,21 @@ function bbcode($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 + // 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 = $extracted['images']; // If we find any event code, turn it into an event. // After we're finished processing the bbcode we'll @@ -333,8 +386,9 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) { // 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#$]','<img src="' . $saved_image .'" alt="' . t('Image/photo') . '" />',$Text); + + if($saved_image) + $Text = bb_replace_images($Text, $saved_image); call_hooks('bbcode',$Text); |