friendica_2021-01/include/group.php
friendica 6b36863dd8 prune all dead/blocked contacts from allowed permissions, ok to keep them in "deny" lists -
Contacts will be pruned when creating the editor. They can't be added with the ACL selector,
but we won't prevent them from being added through other means.
Allowed groups will be pruned on item submit.
2012-12-13 21:02:14 -08:00

325 lines
7.7 KiB
PHP

<?php
function group_add($uid,$name) {
$ret = false;
if(x($uid) && x($name)) {
$r = group_byname($uid,$name); // check for dups
if($r !== false) {
// This could be a problem.
// Let's assume we've just created a group which we once deleted
// all the old members are gone, but the group remains so we don't break any security
// access lists. What we're doing here is reviving the dead group, but old content which
// was restricted to this group may now be seen by the new group members.
$z = q("SELECT * FROM `group` WHERE `id` = %d LIMIT 1",
intval($r)
);
if(count($z) && $z[0]['deleted']) {
$r = q("UPDATE `group` SET `deleted` = 0 WHERE `uid` = %d AND `name` = '%s' LIMIT 1",
intval($uid),
dbesc($name)
);
notice( t('A deleted group with this name was revived. Existing item permissions <strong>may</strong> apply to this group and any future members. If this is not what you intended, please create another group with a different name.') . EOL);
}
return true;
}
$r = q("INSERT INTO `group` ( `uid`, `name` )
VALUES( %d, '%s' ) ",
intval($uid),
dbesc($name)
);
$ret = $r;
}
return $ret;
}
function group_rmv($uid,$name) {
$ret = false;
if(x($uid) && x($name)) {
$r = q("SELECT id FROM `group` WHERE `uid` = %d AND `name` = '%s' LIMIT 1",
intval($uid),
dbesc($name)
);
if(count($r))
$group_id = $r[0]['id'];
if(! $group_id)
return false;
// remove group from default posting lists
$r = q("SELECT def_gid, allow_gid, deny_gid FROM user WHERE uid = %d LIMIT 1",
intval($uid)
);
if($r) {
$user_info = $r[0];
$change = false;
if($user_info['def_gid'] == $group_id) {
$user_info['def_gid'] = 0;
$change = true;
}
if(strpos($user_info['allow_gid'], '<' . $group_id . '>') !== false) {
$user_info['allow_gid'] = str_replace('<' . $group_id . '>', '', $user_info['allow_gid']);
$change = true;
}
if(strpos($user_info['deny_gid'], '<' . $group_id . '>') !== false) {
$user_info['deny_gid'] = str_replace('<' . $group_id . '>', '', $user_info['deny_gid']);
$change = true;
}
if($change) {
q("UPDATE user SET def_gid = %d, allow_gid = '%s', deny_gid = '%s' WHERE uid = %d",
intval($user_info['def_gid']),
dbesc($user_info['allow_gid']),
dbesc($user_info['deny_gid']),
intval($uid)
);
}
}
// remove all members
$r = q("DELETE FROM `group_member` WHERE `uid` = %d AND `gid` = %d ",
intval($uid),
intval($group_id)
);
// remove group
$r = q("UPDATE `group` SET `deleted` = 1 WHERE `uid` = %d AND `name` = '%s' LIMIT 1",
intval($uid),
dbesc($name)
);
$ret = $r;
}
return $ret;
}
function group_byname($uid,$name) {
if((! $uid) || (! strlen($name)))
return false;
$r = q("SELECT * FROM `group` WHERE `uid` = %d AND `name` = '%s' LIMIT 1",
intval($uid),
dbesc($name)
);
if(count($r))
return $r[0]['id'];
return false;
}
function group_rmv_member($uid,$name,$member) {
$gid = group_byname($uid,$name);
if(! $gid)
return false;
if(! ( $uid && $gid && $member))
return false;
$r = q("DELETE FROM `group_member` WHERE `uid` = %d AND `gid` = %d AND `contact-id` = %d LIMIT 1 ",
intval($uid),
intval($gid),
intval($member)
);
return $r;
}
function group_add_member($uid,$name,$member,$gid = 0) {
if(! $gid)
$gid = group_byname($uid,$name);
if((! $gid) || (! $uid) || (! $member))
return false;
$r = q("SELECT * FROM `group_member` WHERE `uid` = %d AND `gid` = %d AND `contact-id` = %d LIMIT 1",
intval($uid),
intval($gid),
intval($member)
);
if(count($r))
return true; // You might question this, but
// we indicate success because the group member was in fact created
// -- It was just created at another time
if(! count($r))
$r = q("INSERT INTO `group_member` (`uid`, `gid`, `contact-id`)
VALUES( %d, %d, %d ) ",
intval($uid),
intval($gid),
intval($member)
);
return $r;
}
function group_get_members($gid) {
$ret = array();
if(intval($gid)) {
$r = q("SELECT `group_member`.`contact-id`, `contact`.* FROM `group_member`
LEFT JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id`
WHERE `gid` = %d AND `group_member`.`uid` = %d ORDER BY `contact`.`name` ASC ",
intval($gid),
intval(local_user())
);
if(count($r))
$ret = $r;
}
return $ret;
}
function group_public_members($gid) {
$ret = 0;
if(intval($gid)) {
$r = q("SELECT `contact`.`id` AS `contact-id` FROM `group_member`
LEFT JOIN `contact` ON `contact`.`id` = `group_member`.`contact-id`
WHERE `gid` = %d AND `group_member`.`uid` = %d
AND `contact`.`network` = '%s' AND `contact`.`notify` != '' ",
intval($gid),
intval(local_user()),
dbesc(NETWORK_OSTATUS)
);
if(count($r))
$ret = count($r);
}
return $ret;
}
function mini_group_select($uid,$gid = 0) {
$grps = array();
$o = '';
$r = q("SELECT * FROM `group` WHERE `deleted` = 0 AND `uid` = %d ORDER BY `name` ASC",
intval($uid)
);
$grps[] = array('name' => '', 'id' => '0', 'selected' => '');
if(count($r)) {
foreach($r as $rr) {
$grps[] = array('name' => $rr['name'], 'id' => $rr['id'], 'selected' => (($gid == $rr['id']) ? 'true' : ''));
}
}
logger('groups: ' . print_r($grps,true));
$o = replace_macros(get_markup_template('group_selection.tpl'), array(
'$label' => t('Default privacy group for new contacts'),
'$groups' => $grps
));
return $o;
}
function group_side($every="contacts",$each="group",$edit = false, $group_id = 0, $cid = 0) {
$o = '';
if(! local_user())
return '';
$groups = array();
$groups[] = array(
'text' => t('Everybody'),
'id' => 0,
'selected' => (($group_id == 0) ? 'group-selected' : ''),
'href' => $every,
);
$r = q("SELECT * FROM `group` WHERE `deleted` = 0 AND `uid` = %d ORDER BY `name` ASC",
intval($_SESSION['uid'])
);
$member_of = array();
if($cid) {
$member_of = groups_containing(local_user(),$cid);
}
if(count($r)) {
foreach($r as $rr) {
$selected = (($group_id == $rr['id']) ? ' group-selected' : '');
if ($edit) {
$groupedit = array(
'href' => "group/".$rr['id'],
'title' => t('edit'),
);
} else {
$groupedit = null;
}
$groups[] = array(
'id' => $rr['id'],
'cid' => $cid,
'text' => $rr['name'],
'selected' => $selected,
'href' => $each."/".$rr['id'],
'edit' => $groupedit,
'ismember' => in_array($rr['id'],$member_of),
);
}
}
$tpl = get_markup_template("group_side.tpl");
$o = replace_macros($tpl, array(
'$title' => t('Groups'),
'$edittext' => t('Edit group'),
'$createtext' => t('Create a new group'),
'$ungrouped' => (($every === 'contacts') ? t('Contacts not in any group') : ''),
'$groups' => $groups,
'$add' => t('add'),
));
return $o;
}
function expand_groups($a,$check_dead = false) {
if(! (is_array($a) && count($a)))
return array();
$groups = implode(',', $a);
$groups = dbesc($groups);
$r = q("SELECT `contact-id` FROM `group_member` WHERE `gid` IN ( $groups )");
$ret = array();
if(count($r))
foreach($r as $rr)
$ret[] = $rr['contact-id'];
if($check_dead) {
require_once('include/acl_selectors.php');
$ret = prune_deadguys($ret);
}
return $ret;
}
function member_of($c) {
$r = q("SELECT `group`.`name`, `group`.`id` FROM `group` LEFT JOIN `group_member` ON `group_member`.`gid` = `group`.`id` WHERE `group_member`.`contact-id` = %d AND `group`.`deleted` = 0 ORDER BY `group`.`name` ASC ",
intval($c)
);
return $r;
}
function groups_containing($uid,$c) {
$r = q("SELECT `gid` FROM `group_member` WHERE `uid` = %d AND `group_member`.`contact-id` = %d ",
intval($uid),
intval($c)
);
$ret = array();
if(count($r)) {
foreach($r as $rr)
$ret[] = $rr['gid'];
}
return $ret;
}