Rename PermissionSet::fetchIDForPost to PermissionSet::getIdFromACL

- Allow creating/retrieving a permission set id with arbitrary parameters
- Rename ACLformatter->sanitize to ACLFormatter->sanitizeItem
- Move PermissionSet::sortPermissions to ACLformatter->sanitize
This commit is contained in:
Hypolite Petovan 2019-11-05 08:27:22 -05:00
parent f97a358a9b
commit 353dab166e
4 changed files with 106 additions and 50 deletions

View File

@ -204,13 +204,19 @@ class PostUpdate
} }
if (empty($item['psid'])) { if (empty($item['psid'])) {
$item['psid'] = PermissionSet::fetchIDForPost($item); $item['psid'] = PermissionSet::getIdFromACL(
} else { $item['uid'],
$item['allow_cid'],
$item['allow_gid'],
$item['deny_cid'],
$item['deny_gid']
);
}
$item['allow_cid'] = null; $item['allow_cid'] = null;
$item['allow_gid'] = null; $item['allow_gid'] = null;
$item['deny_cid'] = null; $item['deny_cid'] = null;
$item['deny_gid'] = null; $item['deny_gid'] = null;
}
if ($item['post-type'] == 0) { if ($item['post-type'] == 0) {
if (!empty($item['type']) && ($item['type'] == 'note')) { if (!empty($item['type']) && ($item['type'] == 'note')) {

View File

@ -1856,7 +1856,18 @@ class Item
} }
// Creates or assigns the permission set // Creates or assigns the permission set
$item['psid'] = PermissionSet::fetchIDForPost($item); $item['psid'] = PermissionSet::getIdFromACL(
$item['uid'],
$item['allow_cid'],
$item['allow_gid'],
$item['deny_cid'],
$item['deny_gid']
);
$item['allow_cid'] = null;
$item['allow_gid'] = null;
$item['deny_cid'] = null;
$item['deny_gid'] = null;
// We are doing this outside of the transaction to avoid timing problems // We are doing this outside of the transaction to avoid timing problems
if (!self::insertActivity($item)) { if (!self::insertActivity($item)) {
@ -2729,7 +2740,13 @@ class Item
$private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0; $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
$psid = PermissionSet::fetchIDForPost($user); $psid = PermissionSet::getIdFromACL(
$user['uid'],
$user['allow_cid'],
$user['allow_gid'],
$user['deny_cid'],
$user['deny_gid']
);
$forum_mode = ($prvgroup ? 2 : 1); $forum_mode = ($prvgroup ? 2 : 1);

View File

@ -2,9 +2,13 @@
/** /**
* @file src/Model/PermissionSet.php * @file src/Model/PermissionSet.php
*/ */
namespace Friendica\Model; namespace Friendica\Model;
use Friendica\Core\L10n;
use Friendica\Database\DBA; use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Network\HTTPException;
/** /**
* functions for interacting with the permission set of an object (item, photo, event, ...) * functions for interacting with the permission set of an object (item, photo, event, ...)
@ -14,51 +18,53 @@ class PermissionSet
/** /**
* Fetch the id of a given permission set. Generate a new one when needed * Fetch the id of a given permission set. Generate a new one when needed
* *
* @param array $postarray The array from an item, picture or event post * @param int $uid
* @param string|null $allow_cid Allowed contact IDs - empty = everyone
* @param string|null $allow_gid Allowed group IDs - empty = everyone
* @param string|null $deny_cid Disallowed contact IDs - empty = no one
* @param string|null $deny_gid Disallowed group IDs - empty = no one
* @return int id * @return int id
* @throws \Exception * @throws HTTPException\InternalServerErrorException
*/ */
public static function fetchIDForPost(&$postarray) public static function getIdFromACL(
{ int $uid,
$condition = ['uid' => $postarray['uid'], string $allow_cid = null,
'allow_cid' => self::sortPermissions($postarray['allow_cid'] ?? ''), string $allow_gid = null,
'allow_gid' => self::sortPermissions($postarray['allow_gid'] ?? ''), string $deny_cid = null,
'deny_cid' => self::sortPermissions($postarray['deny_cid'] ?? ''), string $deny_gid = null
'deny_gid' => self::sortPermissions($postarray['deny_gid'] ?? '')]; ) {
$ACLFormatter = DI::aclFormatter();
$set = DBA::selectFirst('permissionset', ['id'], $condition); $allow_cid = $ACLFormatter->sanitize($allow_cid);
$allow_gid = $ACLFormatter->sanitize($allow_gid);
$deny_cid = $ACLFormatter->sanitize($deny_cid);
$deny_gid = $ACLFormatter->sanitize($deny_gid);
if (!DBA::isResult($set)) { // Public permission
DBA::insert('permissionset', $condition, true); if (!$allow_cid && !$allow_gid && !$deny_cid && !$deny_gid) {
return 0;
$set = DBA::selectFirst('permissionset', ['id'], $condition);
} }
$postarray['allow_cid'] = null; $condition = [
$postarray['allow_gid'] = null; 'uid' => $uid,
$postarray['deny_cid'] = null; 'allow_cid' => $allow_cid,
$postarray['deny_gid'] = null; 'allow_gid' => $allow_gid,
'deny_cid' => $deny_cid,
'deny_gid' => $deny_gid
];
$permissionset = DBA::selectFirst('permissionset', ['id'], $condition);
return $set['id']; if (DBA::isResult($permissionset)) {
$psid = $permissionset['id'];
} else {
if (DBA::insert('permissionset', $condition, true)) {
$psid = DBA::lastInsertId();
} else {
throw new HTTPException\InternalServerErrorException(L10n::t('Unable to create a new permission set.'));
}
} }
private static function sortPermissions($permissionlist) return $psid;
{
$cleaned_list = trim($permissionlist, '<>');
if (empty($cleaned_list)) {
return $permissionlist;
}
$elements = explode('><', $cleaned_list);
if (count($elements) <= 1) {
return $permissionlist;
}
asort($elements);
return '<' . implode('><', $elements) . '>';
} }
/** /**

View File

@ -12,30 +12,57 @@ final class ACLFormatter
/** /**
* Turn user/group ACLs stored as angle bracketed text into arrays * Turn user/group ACLs stored as angle bracketed text into arrays
* *
* @param string|null $ids A angle-bracketed list of IDs * @param string|null $acl_string A angle-bracketed list of IDs
* *
* @return array The array based on the IDs (empty in case there is no list) * @return array The array based on the IDs (empty in case there is no list)
*/ */
public function expand(string $ids = null) public function expand(string $acl_string = null)
{ {
// In case there is no ID list, return empty array (=> no ACL set) // In case there is no ID list, return empty array (=> no ACL set)
if (!isset($ids)) { if (!isset($acl_string)) {
return []; return [];
} }
// turn string array of angle-bracketed elements into numeric array // turn string array of angle-bracketed elements into numeric array
// e.g. "<1><2><3>" => array(1,2,3); // e.g. "<1><2><3>" => array(1,2,3);
preg_match_all('/<(' . Group::FOLLOWERS . '|'. Group::MUTUALS . '|[0-9]+)>/', $ids, $matches, PREG_PATTERN_ORDER); preg_match_all('/<(' . Group::FOLLOWERS . '|'. Group::MUTUALS . '|[0-9]+)>/', $acl_string, $matches, PREG_PATTERN_ORDER);
return $matches[1]; return $matches[1];
} }
/**
* Takes an arbitrary ACL string and sanitizes it for storage
*
* @param string|null $acl_string
* @return string
*/
public function sanitize(string $acl_string = null)
{
if (empty($acl_string)) {
return '';
}
$cleaned_list = trim($acl_string, '<>');
if (empty($cleaned_list)) {
return '';
}
$elements = explode('><', $cleaned_list);
sort($elements);
array_walk($elements, [$this, 'sanitizeItem']);
return implode('', $elements);
}
/** /**
* Wrap ACL elements in angle brackets for storage * Wrap ACL elements in angle brackets for storage
* *
* @param string $item The item to sanitise * @param string $item The item to sanitise
*/ */
private function sanitize(string &$item) { private function sanitizeItem(string &$item) {
// The item is an ACL int value // The item is an ACL int value
if (intval($item)) { if (intval($item)) {
$item = '<' . intval(Strings::escapeTags(trim($item))) . '>'; $item = '<' . intval(Strings::escapeTags(trim($item))) . '>';
@ -70,7 +97,7 @@ final class ACLFormatter
} }
if (is_array($item)) { if (is_array($item)) {
array_walk($item, [$this, 'sanitize']); array_walk($item, [$this, 'sanitizeItem']);
$return = implode('', $item); $return = implode('', $item);
} }
return $return; return $return;