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allow more than one embedded private photo

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Zach Prezkuta 2012-07-07 16:20:24 -06:00
parent 57635e7684
commit 173b3a1b9a
4 changed files with 327 additions and 139 deletions
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88
include/bbcode.php
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@ -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)=(.*?)\&amp\;(.*?)\>/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);