Merge pull request #381 from fermionic/embed-multiple-private-photos
Embed multiple private photos
This commit is contained in:
friendica
commit
a3640b4e9f
4 changed files with 380 additions and 75 deletions
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@ -47,6 +47,67 @@ function bb_unspacefy_and_trim($st) {
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return $unspacefied;
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}
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if(! function_exists('bb_extract_images')) {
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function bb_extract_images($body) {
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$saved_image = array();
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$orig_body = $body;
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$new_body = '';
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$cnt = 0;
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$img_start = strpos($orig_body, '[img');
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$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
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$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
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while(($img_st_close !== false) && ($img_end !== false)) {
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$img_st_close++; // make it point to AFTER the closing bracket
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$img_end += $img_start;
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if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
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// This is an embedded image
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$saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
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$new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
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$cnt++;
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}
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else
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$new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
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$orig_body = substr($orig_body, $img_end + strlen('[/img]'));
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if($orig_body === false) // in case the body ends on a closing image tag
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$orig_body = '';
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$img_start = strpos($orig_body, '[img');
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$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
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$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
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}
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$new_body = $new_body . $orig_body;
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return array('body' => $new_body, 'images' => $saved_image);
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}}
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if(! function_exists('bb_replace_images')) {
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function bb_replace_images($body, $images) {
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$newbody = $body;
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$cnt = 0;
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foreach($images as $image) {
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// We're depending on the property of 'foreach' (specified on the PHP website) that
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// it loops over the array starting from the first element and going sequentially
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// to the last element
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$newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . $image .'" alt="' . t('Image/photo') . '" />', $newbody);
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$cnt++;
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}
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return $newbody;
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}}
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// BBcode 2 HTML was written by WAY2WEB.net
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// extended to work with Mistpark/Friendica - Mike Macgirvin
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@ -54,29 +115,21 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) {
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$a = get_app();
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// Hide all [noparse] contained bbtags spacefying them
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// Hide all [noparse] contained bbtags by spacefying them
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// POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
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$Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
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$Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
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$Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
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// Extract a single private image which uses data url's since preg has issues with
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// large data sizes. Stash it away while we do bbcode conversion, and then put it back
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// Extract the private images which use data url's since preg has issues with
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// large data sizes. Stash them away while we do bbcode conversion, and then put them back
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// in after we've done all the regex matching. We cannot use any preg functions to do this.
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$saved_image = '';
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$img_start = strpos($Text,'[img]data:');
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$img_end = strpos($Text,'[/img]');
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if($img_start !== false && $img_end !== false && $img_end > $img_start) {
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$start_fragment = substr($Text,0,$img_start);
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$img_start += strlen('[img]');
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$saved_image = substr($Text,$img_start,$img_end - $img_start);
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$end_fragment = substr($Text,$img_end + strlen('[/img]'));
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// logger('saved_image: ' . $saved_image,LOGGER_DEBUG);
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$Text = $start_fragment . '[$#saved_image#$]' . $end_fragment;
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}
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$extracted = bb_extract_images($Text);
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$Text = $extracted['body'];
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$saved_image = $extracted['images'];
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// If we find any event code, turn it into an event.
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// After we're finished processing the bbcode we'll
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@ -333,8 +386,9 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true) {
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// fix any escaped ampersands that may have been converted into links
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$Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
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if(strlen($saved_image))
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$Text = str_replace('[$#saved_image#$]','<img src="' . $saved_image .'" alt="' . t('Image/photo') . '" />',$Text);
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if($saved_image)
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$Text = bb_replace_images($Text, $saved_image);
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call_hooks('bbcode',$Text);
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@ -1,30 +1,92 @@
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<?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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if(! function_exists('item_extract_images')) {
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function item_extract_images($body) {
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$saved_image = array();
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$orig_body = $body;
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$new_body = '';
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$cnt = 0;
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$img_start = strpos($orig_body, '[img');
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$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
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$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
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while(($img_st_close !== false) && ($img_end !== false)) {
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$img_st_close++; // make it point to AFTER the closing bracket
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$img_end += $img_start;
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if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
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// This is an embedded image
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$saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
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$new_body = $new_body . substr($orig_body, 0, $img_start) . '[!#saved_image' . $cnt . '#!]';
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$cnt++;
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}
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else
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$new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
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$orig_body = substr($orig_body, $img_end + strlen('[/img]'));
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if($orig_body === false) // in case the body ends on a closing image tag
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$orig_body = '';
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$img_start = strpos($orig_body, '[img');
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$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
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$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
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}
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$new_body = $new_body . $orig_body;
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return array('body' => $new_body, 'images' => $saved_image);
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}}
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if(! function_exists('item_redir_and_replace_images')) {
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function item_redir_and_replace_images($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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$replace = '[url=' . z_path() . '/redir/' . $cid
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. '?f=1&url=' . '$1' . '][!#saved_image' . $i . '#!][/url]' ;
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$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, $img_end);
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$process_part = preg_replace($search, $replace, $process_part);
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$newbody = $newbody . $process_part;
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}
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$newbody = $newbody . $origbody;
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$cnt = 0;
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foreach($images as $image) {
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// We're depending on the property of 'foreach' (specified on the PHP website) that
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// it loops over the array starting from the first element and going sequentially
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// to the last element
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$newbody = str_replace('[!#saved_image' . $cnt . '#!]', '[img]' . $image . '[/img]', $newbody);
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$cnt++;
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}
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return $newbody;
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}}
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/**
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* Render actions localized
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*/
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function localize_item(&$item){
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$Text = $item['body'];
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$saved_image = '';
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$img_start = strpos($Text,'[img]data:');
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$img_end = strpos($Text,'[/img]');
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if($img_start !== false && $img_end !== false && $img_end > $img_start) {
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$start_fragment = substr($Text,0,$img_start);
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$img_start += strlen('[img]');
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$saved_image = substr($Text,$img_start,$img_end - $img_start);
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$end_fragment = substr($Text,$img_end + strlen('[/img]'));
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$Text = $start_fragment . '[!#saved_image#!]' . $end_fragment;
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$search = '/\[url\=(.*?)\]\[!#saved_image#!\]\[\/url\]' . '/is';
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$replace = '[url=' . z_path() . '/redir/' . $item['contact-id']
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. '?f=1&url=' . '$1' . '][!#saved_image#!][/url]' ;
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$Text = preg_replace($search,$replace,$Text);
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if(strlen($saved_image))
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$item['body'] = str_replace('[!#saved_image#!]', '[img]' . $saved_image . '[/img]',$Text);
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}
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$extracted = item_extract_images($item['body']);
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if($extracted['images'])
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$item['body'] = item_redir_and_replace_images($extracted['body'], $extracted['images'], $item['contact-id']);
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$xmlhead="<"."?xml version='1.0' encoding='UTF-8' ?".">";
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if ($item['verb']=== ACTIVITY_LIKE || $item['verb']=== ACTIVITY_DISLIKE){
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@ -4,6 +4,8 @@ require_once('include/bbcode.php');
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require_once('include/oembed.php');
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require_once('include/salmon.php');
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require_once('include/crypto.php');
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require_once('include/Photo.php');
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function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
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@ -280,6 +282,98 @@ function construct_activity_target($item) {
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return '';
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}
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/* limit_body_size()
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*
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* The purpose of this function is to apply system message length limits to
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* imported messages without including any embedded photos in the length
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*/
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if(! function_exists('limit_body_size')) {
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function limit_body_size($body) {
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logger('limit_body_size: start', LOGGER_DEBUG);
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$maxlen = get_max_import_size();
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// If the length of the body, including the embedded images, is smaller
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// than the maximum, then don't waste time looking for the images
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if($maxlen && (strlen($body) > $maxlen)) {
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logger('limit_body_size: the total body length exceeds the limit', LOGGER_DEBUG);
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$orig_body = $body;
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$new_body = '';
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$textlen = 0;
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$max_found = false;
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$img_start = strpos($orig_body, '[img');
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$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
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$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
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while(($img_st_close !== false) && ($img_end !== false)) {
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$img_st_close++; // make it point to AFTER the closing bracket
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$img_end += $img_start;
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$img_end += strlen('[/img]');
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if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
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// This is an embedded image
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if( ($textlen + $img_start) > $maxlen ) {
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if($textlen < $maxlen) {
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logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
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$new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
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$textlen = $maxlen;
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}
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}
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else {
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$new_body = $new_body . substr($orig_body, 0, $img_start);
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$textlen += $img_start;
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}
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$new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
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}
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else {
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if( ($textlen + $img_end) > $maxlen ) {
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if($textlen < $maxlen) {
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logger('limit_body_size: the limit happens before the end of a non-embedded image', LOGGER_DEBUG);
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$new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
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$textlen = $maxlen;
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}
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}
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else {
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$new_body = $new_body . substr($orig_body, 0, $img_end);
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$textlen += $img_end;
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}
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}
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$orig_body = substr($orig_body, $img_end);
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if($orig_body === false) // in case the body ends on a closing image tag
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$orig_body = '';
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$img_start = strpos($orig_body, '[img');
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$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
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$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
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}
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if( ($textlen + strlen($orig_body)) > $maxlen) {
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if($textlen < $maxlen) {
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logger('limit_body_size: the limit happens after the end of the last image', LOGGER_DEBUG);
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$new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
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$textlen = $maxlen;
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}
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}
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else {
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logger('limit_body_size: the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG);
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$new_body = $new_body . $orig_body;
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$textlen += strlen($orig_body);
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}
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return $new_body;
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}
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else
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return $body;
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}}
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@ -414,9 +508,8 @@ function get_atom_elements($feed,$item) {
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$res['body'] = notags(base64url_decode($res['body']));
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}
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$maxlen = get_max_import_size();
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if($maxlen && (strlen($res['body']) > $maxlen))
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$res['body'] = substr($res['body'],0, $maxlen);
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$res['body'] = limit_body_size($res['body']);
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// It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
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// the content type. Our own network only emits text normally, though it might have been converted to
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@ -3094,14 +3187,27 @@ function fix_private_photos($s,$uid, $item = null, $cid = 0) {
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logger('fix_private_photos', LOGGER_DEBUG);
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$site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://'));
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if(preg_match("/\[img(.*?)\](.*?)\[\/img\]/is",$s,$matches)) {
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$image = $matches[2];
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$orig_body = $s;
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$new_body = '';
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$img_start = strpos($orig_body, '[img');
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$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
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$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
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while( ($img_st_close !== false) && ($img_len !== false) ) {
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$img_st_close++; // make it point to AFTER the closing bracket
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$image = substr($orig_body, $img_start + $img_st_close, $img_len);
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logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
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if(stristr($image , $site . '/photo/')) {
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// Only embed locally hosted photos
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$replace = false;
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$i = basename($image);
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$i = str_replace(array('.jpg','.png'),array('',''),$i);
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$x = strpos($i,'-');
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if($x) {
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$res = substr($i,$x+1);
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$i = substr($i,0,$x);
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@ -3120,14 +3226,6 @@ function fix_private_photos($s,$uid, $item = null, $cid = 0) {
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// permissions, regardless of order but first check to see if they're an exact
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// match to save some processing overhead.
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// Currently we only embed one private photo per message so as not to hit import
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// size limits at the receiving end.
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// To embed multiples, we would need to parse out the embedded photos on message
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// receipt and limit size based only on the text component. Would also need to
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// ignore all photos during bbcode translation and item localisation, as these
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// will hit internal regex backtrace limits.
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if(has_permissions($r[0])) {
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if($cid) {
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$recips = enumerate_permissions($r[0]);
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@ -3141,15 +3239,45 @@ function fix_private_photos($s,$uid, $item = null, $cid = 0) {
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}
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}
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if($replace) {
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$data = $r[0]['data'];
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$type = $r[0]['type'];
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// If a custom width and height were specified, apply before embedding
|
||||
if(preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
|
||||
logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
|
||||
|
||||
$width = intval($match[1]);
|
||||
$height = intval($match[2]);
|
||||
|
||||
$ph = new Photo($data, $type);
|
||||
if($ph->is_valid()) {
|
||||
$ph->scaleImage(max($width, $height));
|
||||
$data = $ph->imageString();
|
||||
$type = $ph->getType();
|
||||
}
|
||||
}
|
||||
|
||||
logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
|
||||
$s = str_replace($image, 'data:' . $r[0]['type'] . ';base64,' . base64_encode($r[0]['data']), $s);
|
||||
logger('fix_private_photos: replaced: ' . $s, LOGGER_DATA);
|
||||
$image = 'data:' . $type . ';base64,' . base64_encode($data);
|
||||
logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
$new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
|
||||
$orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
|
||||
if($orig_body === false)
|
||||
$orig_body = '';
|
||||
|
||||
$img_start = strpos($orig_body, '[img');
|
||||
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
|
||||
$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
|
||||
}
|
||||
return($s);
|
||||
|
||||
$new_body = $new_body . $orig_body;
|
||||
|
||||
return($new_body);
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
101
mod/message.php
101
mod/message.php
|
|
@ -88,6 +88,84 @@ function message_post(&$a) {
|
|||
|
||||
}
|
||||
|
||||
// Note: the code in 'item_extract_images' and 'item_redir_and_replace_images'
|
||||
// is identical to the code in include/conversation.php
|
||||
if(! function_exists('item_extract_images')) {
|
||||
function item_extract_images($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' => $saved_image);
|
||||
}}
|
||||
|
||||
if(! function_exists('item_redir_and_replace_images')) {
|
||||
function item_redir_and_replace_images($body, $images, $cid) {
|
||||
|
||||
$origbody = $body;
|
||||
$newbody = '';
|
||||
|
||||
for($i = 0; $i < count($images); $i++) {
|
||||
$search = '/\[url\=(.*?)\]\[!#saved_image' . $i . '#!\]\[\/url\]' . '/is';
|
||||
$replace = '[url=' . z_path() . '/redir/' . $cid
|
||||
. '?f=1&url=' . '$1' . '][!#saved_image' . $i . '#!][/url]' ;
|
||||
|
||||
$img_end = strpos($origbody, '[!#saved_image' . $i . '#!][/url]') + strlen('[!#saved_image' . $i . '#!][/url]');
|
||||
$process_part = substr($origbody, 0, $img_end);
|
||||
$origbody = substr($origbody, $img_end);
|
||||
|
||||
$process_part = preg_replace($search, $replace, $process_part);
|
||||
$newbody = $newbody . $process_part;
|
||||
}
|
||||
$newbody = $newbody . $origbody;
|
||||
|
||||
$cnt = 0;
|
||||
foreach($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]' . $image . '[/img]', $newbody);
|
||||
$cnt++;
|
||||
}
|
||||
|
||||
return $newbody;
|
||||
}}
|
||||
|
||||
|
||||
|
||||
function message_content(&$a) {
|
||||
|
||||
$o = '';
|
||||
|
|
@ -345,26 +423,9 @@ function message_content(&$a) {
|
|||
}
|
||||
|
||||
|
||||
$Text = $message['body'];
|
||||
$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]'));
|
||||
$Text = $start_fragment . '[!#saved_image#!]' . $end_fragment;
|
||||
$search = '/\[url\=(.*?)\]\[!#saved_image#!\]\[\/url\]' . '/is';
|
||||
$replace = '[url=' . z_path() . '/redir/' . $message['contact-id']
|
||||
. '?f=1&url=' . '$1' . '][!#saved_image#!][/url]' ;
|
||||
|
||||
$Text = preg_replace($search,$replace,$Text);
|
||||
|
||||
if(strlen($saved_image))
|
||||
$message['body'] = str_replace('[!#saved_image#!]', '[img]' . $saved_image . '[/img]',$Text);
|
||||
}
|
||||
$extracted = item_extract_images($message['body']);
|
||||
if($extracted['images'])
|
||||
$message['body'] = item_redir_and_replace_images($extracted['body'], $extracted['images'], $message['contact-id']);
|
||||
|
||||
$mails[] = array(
|
||||
'id' => $message['id'],
|
||||
|
|
|
|||
Loading…
Reference in a new issue