diff options
Diffstat (limited to 'include/items.php')
| -rw-r--r-- | include/items.php | 99 |
1 files changed, 89 insertions, 10 deletions
diff --git a/include/items.php b/include/items.php index e5b640fd2..3fe977b6f 100644 --- a/include/items.php +++ b/include/items.php @@ -2832,7 +2832,7 @@ function atom_author($tag,$name,$uri,$h,$w,$photo) { return $o; } -function atom_entry($item,$type,$author,$owner,$comment = false) { +function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) { $a = get_app(); @@ -2844,7 +2844,7 @@ function atom_entry($item,$type,$author,$owner,$comment = false) { if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid']) - $body = fix_private_photos($item['body'],$owner['uid']); + $body = fix_private_photos($item['body'],$owner['uid'],$item,$cid); else $body = $item['body']; @@ -2927,14 +2927,17 @@ function atom_entry($item,$type,$author,$owner,$comment = false) { return $o; } -function fix_private_photos($s,$uid) { +function fix_private_photos($s,$uid, $item = null, $cid = 0) { $a = get_app(); - logger('fix_private_photos'); + + logger('fix_private_photos', LOGGER_DEBUG); + $site = substr($a->get_baseurl(),strpos($a->get_baseurl,'://')); if(preg_match("/\[img\](.*?)\[\/img\]/is",$s,$matches)) { $image = $matches[1]; - logger('fix_private_photos: found photo ' . $image); - if(stristr($image ,$a->get_baseurl() . '/photo/')) { + logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG); + if(stristr($image , $site . '/photo/')) { + $replace = false; $i = basename($image); $i = str_replace('.jpg','',$i); $x = strpos($i,'-'); @@ -2947,17 +2950,86 @@ function fix_private_photos($s,$uid) { intval($uid) ); if(count($r)) { - logger('replacing photo'); - $s = str_replace($image, 'data:image/jpg;base64,' . base64_encode($r[0]['data']), $s); + + // Check to see if we should replace this photo link with an embedded image + // 1. No need to do so if the photo is public + // 2. If there's a contact-id provided, see if they're in the access list + // for the photo. If so, embed it. + // 3. Otherwise, if we have an item, see if the item permissions match the photo + // permissions, regardless of order but first check to see if they're an exact + // match to save some processing overhead. + + // Currently we only embed one private photo per message so as not to hit import + // size limits at the receiving end. + + // To embed multiples, we would need to parse out the embedded photos on message + // receipt and limit size based only on the text component. Would also need to + // ignore all photos during bbcode translation and item localisation, as these + // will hit internal regex backtrace limits. + + if(has_permissions($r[0])) { + if($cid) { + $recips = enumerate_permissions($r[0]); + if(in_array($cid, $recips)) { + $replace = true; + } + } + elseif($item) { + if(compare_permissions($item,$r[0])) + $replace = true; + } + } + if($replace) { + logger('fix_private_photos: replacing photo', LOGGER_DEBUG); + $s = str_replace($image, 'data:image/jpg;base64,' . base64_encode($r[0]['data']), $s); + logger('fix_private_photos: replaced: ' . $s, LOGGER_DATA); + } } } - logger('fix_private_photos: replaced: ' . $s, LOGGER_DATA); } } return($s); } +function has_permissions($obj) { + if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != '')) + return true; + return false; +} + +function compare_permissions($obj1,$obj2) { + // first part is easy. Check that these are exactly the same. + if(($obj1['allow_cid'] == $obj2['allow_cid']) + && ($obj1['allow_gid'] == $obj2['allow_gid']) + && ($obj1['deny_cid'] == $obj2['deny_cid']) + && ($obj1['deny_gid'] == $obj2['deny_gid'])) + return true; + + // This is harder. Parse all the permissions and compare the resulting set. + + $recipients1 = enumerate_permissions($obj1); + $recipients2 = enumerate_permissions($obj2); + sort($recipients1); + sort($recipients2); + if($recipients1 == $recipients2) + return true; + return false; +} + +// returns an array of contact-ids that are allowed to see this object + +function enumerate_permissions($obj) { + require_once('include/group.php'); + $allow_people = expand_acl($obj['allow_cid']); + $allow_groups = expand_groups(expand_acl($obj['allow_gid'])); + $deny_people = expand_acl($obj['deny_cid']); + $deny_groups = expand_groups(expand_acl($obj['deny_gid'])); + $recipients = array_unique(array_merge($allow_people,$allow_groups)); + $deny = array_unique(array_merge($deny_people,$deny_groups)); + $recipients = array_diff($recipients,$deny); + return $recipients; +} function item_getfeedtags($item) { $ret = array(); @@ -3004,13 +3076,20 @@ function item_getfeedattach($item) { function item_expire($uid,$days) { - if((! $uid) || (! $days)) + if((! $uid) || ($days < 1)) return; + // $expire_network_only = save your own wall posts + // and just expire conversations started by others + + $expire_network_only = get_pconfig($uid,'expire','network_only'); + $sql_extra = ((intval($expire_network_only)) ? " AND wall = 0 " : ""); + $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY AND `id` = `parent` + $sql_extra AND `deleted` = 0", intval($uid), intval($days) |