Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Model/Group.php
*/
namespace Friendica\Model;
use Friendica\BaseModule;
use Friendica\Core\L10n;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Core\Renderer;
use Friendica\Database\DBA;
/**
* @brief functions for interacting with the group database table
*/
class Group
{
const FOLLOWERS = '~';
const MUTUALS = '&';
public static function getByUserId($uid, $includesDeleted = false)
{
$conditions = ['uid' => $uid];
if (!$includesDeleted) {
$conditions['deleted'] = false;
}
return DBA::selectToArray('group', [], $conditions);
}
/**
* @param int $group_id
* @return bool
* @throws \Exception
*/
public static function exists($group_id, $uid = null)
{
$condition = ['id' => $group_id, 'deleted' => false];
if (isset($uid)) {
$condition = [
'uid' => $uid
];
}
return DBA::exists('group', $condition);
}
/**
* @brief Create a new contact group
*
* Note: If we found a deleted group with the same name, we restore it
*
* @param int $uid
* @param string $name
* @return boolean
* @throws \Exception
*/
public static function create($uid, $name)
{
$return = false;
if (!empty($uid) && !empty($name)) {
$gid = self::getIdByName($uid, $name); // check for dupes
if ($gid !== 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.
$group = DBA::selectFirst('group', ['deleted'], ['id' => $gid]);
if (DBA::isResult($group) && $group['deleted']) {
DBA::update('group', ['deleted' => 0], ['id' => $gid]);
notice(L10n::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;
}
$return = DBA::insert('group', ['uid' => $uid, 'name' => $name]);
if ($return) {
$return = DBA::lastInsertId();
}
}
return $return;
}
/**
* Update group information.
*
* @param int $id Group ID
* @param string $name Group name
*
* @return bool Was the update successful?
* @throws \Exception
*/
public static function update($id, $name)
{
return DBA::update('group', ['name' => $name], ['id' => $id]);
}
/**
* @brief Get a list of group ids a contact belongs to
*
* @param int $cid
* @return array
* @throws \Exception
*/
public static function getIdsByContactId($cid)
{
$return = [];
$stmt = DBA::select('group_member', ['gid'], ['contact-id' => $cid]);
while ($group = DBA::fetch($stmt)) {
$return[] = $group['gid'];
}
DBA::close($stmt);
return $return;
}
/**
* @brief count unread group items
*
* Count unread items of each groups of the local user
*
* @return array
* 'id' => group id
* 'name' => group name
* 'count' => counted unseen group items
* @throws \Exception
*/
public static function countUnseen()
{
$stmt = DBA::p("SELECT `group`.`id`, `group`.`name`,
(SELECT COUNT(*) FROM `item` FORCE INDEX (`uid_unseen_contactid`)
WHERE `uid` = ?
AND `unseen`
AND `contact-id` IN
(SELECT `contact-id`
FROM `group_member`
WHERE `group_member`.`gid` = `group`.`id`)
) AS `count`
FROM `group`
WHERE `group`.`uid` = ?;",
local_user(),
local_user()
);
return DBA::toArray($stmt);
}
/**
* @brief Get the group id for a user/name couple
*
* Returns false if no group has been found.
*
* @param int $uid
* @param string $name
* @return int|boolean
* @throws \Exception
*/
public static function getIdByName($uid, $name)
{
if (!$uid || !strlen($name)) {
return false;
}
$group = DBA::selectFirst('group', ['id'], ['uid' => $uid, 'name' => $name]);
if (DBA::isResult($group)) {
return $group['id'];
}
return false;
}
/**
* @brief Mark a group as deleted
*
* @param int $gid
* @return boolean
* @throws \Exception
*/
public static function remove($gid)
{
if (!$gid) {
return false;
}
$group = DBA::selectFirst('group', ['uid'], ['id' => $gid]);
if (!DBA::isResult($group)) {
return false;
}
// remove group from default posting lists
$user = DBA::selectFirst('user', ['def_gid', 'allow_gid', 'deny_gid'], ['uid' => $group['uid']]);
if (DBA::isResult($user)) {
$change = false;
if ($user['def_gid'] == $gid) {
$user['def_gid'] = 0;
$change = true;
}
if (strpos($user['allow_gid'], '<' . $gid . '>') !== false) {
$user['allow_gid'] = str_replace('<' . $gid . '>', '', $user['allow_gid']);
$change = true;
}
if (strpos($user['deny_gid'], '<' . $gid . '>') !== false) {
$user['deny_gid'] = str_replace('<' . $gid . '>', '', $user['deny_gid']);
$change = true;
}
if ($change) {
DBA::update('user', $user, ['uid' => $group['uid']]);
}
}
// remove all members
DBA::delete('group_member', ['gid' => $gid]);
// remove group
$return = DBA::update('group', ['deleted' => 1], ['id' => $gid]);
return $return;
}
/**
* @brief Mark a group as deleted based on its name
*
* @param int $uid
* @param string $name
* @return bool
* @throws \Exception
* @deprecated Use Group::remove instead
*
*/
public static function removeByName($uid, $name)
{
$return = false;
if (!empty($uid) && !empty($name)) {
$gid = self::getIdByName($uid, $name);
$return = self::remove($gid);
}
return $return;
}
/**
* @brief Adds a contact to a group
*
* @param int $gid
* @param int $cid
* @return boolean
* @throws \Exception
*/
public static function addMember($gid, $cid)
{
if (!$gid || !$cid) {
return false;
}
$row_exists = DBA::exists('group_member', ['gid' => $gid, 'contact-id' => $cid]);
if ($row_exists) {
// Row already existing, nothing to do
$return = true;
} else {
$return = DBA::insert('group_member', ['gid' => $gid, 'contact-id' => $cid]);
}
return $return;
}
/**
* @brief Removes a contact from a group
*
* @param int $gid
* @param int $cid
* @return boolean
* @throws \Exception
*/
public static function removeMember($gid, $cid)
{
if (!$gid || !$cid) {
return false;
}
$return = DBA::delete('group_member', ['gid' => $gid, 'contact-id' => $cid]);
return $return;
}
/**
* @brief Removes a contact from a group based on its name
*
* @param int $uid
* @param string $name
* @param int $cid
* @return boolean
* @throws \Exception
* @deprecated Use Group::removeMember instead
*
*/
public static function removeMemberByName($uid, $name, $cid)
{
$gid = self::getIdByName($uid, $name);
$return = self::removeMember($gid, $cid);
return $return;
}
/**
* @brief Returns the combined list of contact ids from a group id list
*
* @param int $uid
* @param array $group_ids
* @param boolean $check_dead
* @return array
* @throws \Exception
*/
public static function expand($uid, array $group_ids, $check_dead = false)
{
if (!is_array($group_ids) || !count($group_ids)) {
return [];
}
$return = [];
$pubmail = false;
$networks = Protocol::SUPPORT_PRIVATE;
$mailacct = DBA::selectFirst('mailacct', ['pubmail'], ['`uid` = ? AND `server` != ""', $uid]);
if (DBA::isResult($mailacct)) {
$pubmail = $mailacct['pubmail'];
}
if (!$pubmail) {
$networks = array_diff($networks, [Protocol::MAIL]);
}
$key = array_search(self::FOLLOWERS, $group_ids);
if ($key !== false) {
$followers = Contact::selectToArray(['id'], [
'uid' => $uid,
'rel' => [Contact::FOLLOWER, Contact::FRIEND],
'network' => $networks,
'contact-type' => [Contact::TYPE_UNKNOWN, Contact::TYPE_PERSON],
'archive' => false,
'pending' => false,
'blocked' => false,
]);
foreach ($followers as $follower) {
$return[] = $follower['id'];
}
unset($group_ids[$key]);
}
$key = array_search(self::MUTUALS, $group_ids);
if ($key !== false) {
$mutuals = Contact::selectToArray(['id'], [
'uid' => $uid,
'rel' => [Contact::FRIEND],
'network' => $networks,
'contact-type' => [Contact::TYPE_UNKNOWN, Contact::TYPE_PERSON],
'archive' => false,
'pending' => false,
'blocked' => false,
]);
foreach ($mutuals as $mutual) {
$return[] = $mutual['id'];
}
unset($group_ids[$key]);
}
$stmt = DBA::select('group_member', ['contact-id'], ['gid' => $group_ids]);
while ($group_member = DBA::fetch($stmt)) {
$return[] = $group_member['contact-id'];
}
DBA::close($stmt);
if ($check_dead) {
$return = Contact::pruneUnavailable($return);
}
return $return;
}
/**
* @brief Returns a templated group selection list
*
* @param int $uid
* @param int $gid An optional pre-selected group
* @param string $label An optional label of the list
* @return string
* @throws \Exception
*/
public static function displayGroupSelection($uid, $gid = 0, $label = '')
{
$display_groups = [
[
'name' => '',
'id' => '0',
'selected' => ''
]
];
$stmt = DBA::select('group', [], ['deleted' => 0, 'uid' => $uid], ['order' => ['name']]);
while ($group = DBA::fetch($stmt)) {
$display_groups[] = [
'name' => $group['name'],
'id' => $group['id'],
'selected' => $gid == $group['id'] ? 'true' : ''
];
}
DBA::close($stmt);
Logger::info('Got groups', $display_groups);
if ($label == '') {
$label = L10n::t('Default privacy group for new contacts');
}
$o = Renderer::replaceMacros(Renderer::getMarkupTemplate('group_selection.tpl'), [
'$label' => $label,
'$groups' => $display_groups
]);
return $o;
}
/**
* @brief Create group sidebar widget
*
* @param string $every
* @param string $each
* @param string $editmode
* 'standard' => include link 'Edit groups'
* 'extended' => include link 'Create new group'
* 'full' => include link 'Create new group' and provide for each group a link to edit this group
* @param string $group_id
* @param int $cid
* @return string
* @throws \Exception
*/
public static function sidebarWidget($every = 'contact', $each = 'group', $editmode = 'standard', $group_id = '', $cid = 0)
{
if (!local_user()) {
return '';
}
$display_groups = [
[
'text' => L10n::t('Everybody'),
'id' => 0,
'selected' => (($group_id === 'everyone') ? 'group-selected' : ''),
'href' => $every,
]
];
$member_of = [];
if ($cid) {
$member_of = self::getIdsByContactId($cid);
}
$stmt = DBA::select('group', [], ['deleted' => 0, 'uid' => local_user()], ['order' => ['name']]);
while ($group = DBA::fetch($stmt)) {
$selected = (($group_id == $group['id']) ? ' group-selected' : '');
if ($editmode == 'full') {
$groupedit = [
'href' => 'group/' . $group['id'],
'title' => L10n::t('edit'),
];
} else {
$groupedit = null;
}
$display_groups[] = [
'id' => $group['id'],
'cid' => $cid,
'text' => $group['name'],
'href' => $each . '/' . $group['id'],
'edit' => $groupedit,
'selected' => $selected,
'ismember' => in_array($group['id'], $member_of),
];
}
DBA::close($stmt);
// Don't show the groups on the network page when there is only one
if ((count($display_groups) <= 2) && ($each == 'network')) {
return '';
}
$tpl = Renderer::getMarkupTemplate('group_side.tpl');
$o = Renderer::replaceMacros($tpl, [
'$add' => L10n::t('add'),
'$title' => L10n::t('Groups'),
'$groups' => $display_groups,
'newgroup' => $editmode == 'extended' || $editmode == 'full' ? 1 : '',
'grouppage' => 'group/',
'$edittext' => L10n::t('Edit group'),
'$ungrouped' => $every === 'contact' ? L10n::t('Contacts not in any group') : '',
'$ungrouped_selected' => (($group_id === 'none') ? 'group-selected' : ''),
'$createtext' => L10n::t('Create a new group'),
'$creategroup' => L10n::t('Group Name: '),
'$editgroupstext' => L10n::t('Edit groups'),
'$form_security_token' => BaseModule::getFormSecurityToken('group_edit'),
]);
return $o;
}
}