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<?php
class AccessList {
private $allow_cid;
private $allow_gid;
private $deny_cid;
private $deny_gid;
/* indicates if we are using the default constructor values or values that have been set explicitly. */
private $explicit;
function __construct($channel) {
if($channel) {
$this->allow_cid = $channel['channel_allow_cid'];
$this->allow_gid = $channel['channel_allow_gid'];
$this->deny_cid = $channel['channel_deny_cid'];
$this->deny_gid = $channel['channel_deny_gid'];
}
else {
$this->allow_cid = '';
$this->allow_gid = '';
$this->deny_cid = '';
$this->deny_gid = '';
}
$this->explicit = false;
}
function get_explicit() {
return $this->explicit;
}
function set($arr,$explicit = true) {
$this->allow_cid = $arr['allow_cid'];
$this->allow_gid = $arr['allow_gid'];
$this->deny_cid = $arr['deny_cid'];
$this->deny_gid = $arr['deny_gid'];
$this->explicit = $explicit;
}
function get() {
return array(
'allow_cid' => $this->allow_cid,
'allow_gid' => $this->allow_gid,
'deny_cid' => $this->deny_cid,
'deny_gid' => $this->deny_gid,
);
}
function set_from_array($arr,$explicit = true) {
$this->allow_cid = perms2str((is_array($arr['contact_allow']))
? $arr['contact_allow'] : explode(',',$arr['contact_allow']));
$this->allow_gid = perms2str((is_array($arr['group_allow']))
? $arr['group_allow'] : explode(',',$arr['group_allow']));
$this->deny_cid = perms2str((is_array($arr['contact_deny']))
? $arr['contact_deny'] : explode(',',$arr['contact_deny']));
$this->deny_gid = perms2str((is_array($arr['group_deny']))
? $arr['group_deny'] : explode(',',$arr['group_deny']));
$this->explicit = $explicit;
}
function is_private() {
return (($this->allow_cid || $this->allow_gid || $this->deny_cid || $this->deny_gid) ? true : false);
}
}
/**
* @brief Used to wrap ACL elements in angle brackets for storage.
*
* @param[in,out] array &$item
*/
function sanitise_acl(&$item) {
if (strlen($item))
$item = '<' . notags(trim($item)) . '>';
else
unset($item);
}
/**
* @brief Convert an ACL array to a storable string.
*
* @param array $p
* @return array
*/
function perms2str($p) {
$ret = '';
if (is_array($p))
$tmp = $p;
else
$tmp = explode(',', $p);
if (is_array($tmp)) {
array_walk($tmp, 'sanitise_acl');
$ret = implode('', $tmp);
}
return $ret;
}
/**
* @brief Turn user/group ACLs stored as angle bracketed text into arrays.
*
* turn string array of angle-bracketed elements into string array
* e.g. "<123xyz><246qyo><sxo33e>" => array(123xyz,246qyo,sxo33e);
*
* @param string $s
* @return array
*/
function expand_acl($s) {
$ret = array();
if(strlen($s)) {
$t = str_replace('<','',$s);
$a = explode('>',$t);
foreach($a as $aa) {
if($aa)
$ret[] = $aa;
}
}
return $ret;
}
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