diff options
Diffstat (limited to 'include/items.php')
| -rw-r--r-- | include/items.php | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/include/items.php b/include/items.php index f6a93cc2c..a74fe8b50 100644 --- a/include/items.php +++ b/include/items.php @@ -5009,6 +5009,136 @@ function fix_attached_file_permissions($channel,$observer_hash,$body, } } +function list_attached_local_files($body) { + + $files = []; + $match = []; + + // match img and zmg image links + if (preg_match_all("/\[[zi]mg(.*?)](.*?)\[\/[zi]mg]/", $body, $match)) { + $images = array_merge($match[1], $match[2]); + if ($images) { + foreach ($images as $image) { + if (!stristr($image, z_root() . '/photo/')) { + continue; + } + $image_uri = substr($image,strrpos($image,'/') + 1); + if (str_contains($image_uri, '-')) { + $image_uri = substr($image_uri,0, strrpos($image_uri,'-')); + } + if (str_contains($image_uri, '.')) { + $image_uri = substr($image_uri,0, strpos($image_uri,'.')); + } + if ($image_uri && !in_array($image_uri, $files)) { + $files[] = $image_uri; + } + } + } + } + if (preg_match_all("/\[attachment](.*?)\[\/attachment]/",$body,$match)) { + $attaches = $match[1]; + if ($attaches) { + foreach ($attaches as $attach) { + $hash = substr($attach,0,strpos($attach,',')); + if ($hash && !in_array($hash, $files)) { + $files[] = $hash; + } + } + } + } + + return $files; +} + +function fix_attached_permissions($uid, $body, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny, $token = EMPTY_STR) { + + $files = list_attached_local_files($body); + + if (! $files) { + return; + } + + foreach ($files as $file) { + $attach_q = q("select id, hash, flags, is_photo, allow_cid, allow_gid, deny_cid, deny_gid from attach where hash = '%s' and uid = %d", + dbesc($file), + intval($uid) + ); + + if (! $attach_q) { + continue; + } + + $attach = array_shift($attach_q); + + $new_public = !(($str_contact_allow || $str_group_allow || $str_contact_deny || $str_group_deny)); + $existing_public = !(($attach['allow_cid'] || $attach['allow_gid'] || $attach['deny_cid'] || $attach['deny_gid'])); + + if ($existing_public) { + // permissions have already been fixed and they are public. There's nothing for us to do. + continue; + } + + // if flags & 1, the attachment was uploaded directly into a post and needs to have permissions corrected + // or - if it is a private file and a new token was generated, we'll need to add the token to the ACL. + + if (((intval($attach['flags']) & 1) !== 1) && (! $token)) { + continue; + } + + $item_private = 0; + + if ($new_public === false) { + $item_private = (($str_group_allow || ($str_contact_allow && substr_count($str_contact_allow,'<') > 2)) ? 1 : 2); + + // preserve any existing tokens that may have been set for this file + $token_matches = null; + if (preg_match_all('/<token:(.*?)>/',$attach['allow_cid'],$token_matches, PREG_SET_ORDER)) { + foreach ($token_matches as $m) { + $tok = '<token:' . $m[1] . '>'; + if (!str_contains($str_contact_allow, $tok)) { + $str_contact_allow .= $tok; + } + } + } + if ($token && !str_contains($str_contact_allow, $token)) { + $str_contact_allow .= '<token:' . $token . '>'; + } + } + + q("update attach SET allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', flags = 0 + WHERE id = %d AND uid = %d", + dbesc($str_contact_allow), + dbesc($str_group_allow), + dbesc($str_contact_deny), + dbesc($str_group_deny), + intval($attach['id']), + intval($uid) + ); + + if ($attach['is_photo']) { + $r = q("UPDATE photo SET allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s' + WHERE resource_id = '%s' AND uid = %d ", + dbesc($str_contact_allow), + dbesc($str_group_allow), + dbesc($str_contact_deny), + dbesc($str_group_deny), + dbesc($file), + intval($uid) + ); + + $r = q("UPDATE item SET allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d + WHERE resource_id = '%s' AND 'resource_type' = 'photo' AND uid = %d", + dbesc($str_contact_allow), + dbesc($str_group_allow), + dbesc($str_contact_deny), + dbesc($str_group_deny), + intval($item_private), + dbesc($file), + intval($uid) + ); + } + } +} function item_create_edit_activity($post) { |