bitPickups/friendica_2019-12_sharedHosting_hotFix
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consolidate perrmisions sql, minor duepuntozero validation fixes

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Friendika 2011-06-30 17:35:35 -07:00
commit 53653f6a4d
7 changed files with 101 additions and 215 deletions
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71
include/security.php
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@ -44,3 +44,74 @@ function can_write_wall(&$a,$owner) {
return false;
}
function permissions_sql($owner_id,$remote_verified = false,$groups = null) {
$local_user = local_user();
$remote_user = remote_user();
/**
* Construct permissions
*
* default permissions - anonymous user
*/
$sql = " AND allow_cid = ''
AND allow_gid = ''
AND deny_cid = ''
AND deny_gid = ''
";
/**
* Profile owner - everything is visible
*/
if(($local_user) && ($local_user == $owner_id)) {
$sql = '';
}
/**
* Authenticated visitor. Unless pre-verified,
* check that the contact belongs to this $owner_id
* and load the groups the visitor belongs to.
* If pre-verified, the caller is expected to have already
* done this and passed the groups into this function.
*/
elseif($remote_user) {
if(! $remote_verified) {
$r = q("SELECT id FROM contact WHERE id = %d AND uid = %d AND blocked = 0 LIMIT 1",
intval($remote_user),
intval($owner_id)
);
if(count($r)) {
$remote_verified = true;
$groups = init_groups_visitor($remote_user);
}
}
if($remote_verified) {
$gs = '<<>>'; // should be impossible to match
if(is_array($groups) && count($groups)) {
foreach($groups as $g)
$gs .= '|<' . intval($g) . '>';
}
$sql = sprintf(
" AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' )
AND ( deny_cid = '' OR NOT deny_cid REGEXP '<%d>' )
AND ( allow_gid = '' OR allow_gid REGEXP '%s' )
AND ( deny_gid = '' OR NOT deny_gid REGEXP '%s')
",
intval($remote_user),
intval($remote_user),
dbesc($gs),
dbesc($gs)
);
}
}
return $sql;
}