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-rw-r--r--Zotlabs/Lib/Group.php405
1 files changed, 405 insertions, 0 deletions
diff --git a/Zotlabs/Lib/Group.php b/Zotlabs/Lib/Group.php
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+++ b/Zotlabs/Lib/Group.php
@@ -0,0 +1,405 @@
+<?php
+
+namespace Zotlabs\Lib;
+
+use Zotlabs\Lib\Libsync;
+
+
+class Group {
+
+ static function add($uid,$name,$public = 0) {
+
+ $ret = false;
+ if(x($uid) && x($name)) {
+ $r = self::byname($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.
+
+ $z = q("SELECT * FROM groups WHERE id = %d LIMIT 1",
+ intval($r)
+ );
+ if(($z) && $z[0]['deleted']) {
+ q('UPDATE groups SET deleted = 0 WHERE id = %d', intval($z[0]['id']));
+ 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;
+ }
+
+ do {
+ $dups = false;
+ $hash = random_string(32) . str_replace(['<','>'],['.','.'], $name);
+
+ $r = q("SELECT id FROM groups WHERE hash = '%s' LIMIT 1", dbesc($hash));
+ if($r)
+ $dups = true;
+ } while($dups == true);
+
+
+ $r = q("INSERT INTO groups ( hash, uid, visible, gname )
+ VALUES( '%s', %d, %d, '%s' ) ",
+ dbesc($hash),
+ intval($uid),
+ intval($public),
+ dbesc($name)
+ );
+ $ret = $r;
+ }
+
+ Libsync::build_sync_packet($uid,null,true);
+ return $ret;
+ }
+
+
+ static function remove($uid,$name) {
+ $ret = false;
+ if(x($uid) && x($name)) {
+ $r = q("SELECT id, hash FROM groups WHERE uid = %d AND gname = '%s' LIMIT 1",
+ intval($uid),
+ dbesc($name)
+ );
+ if($r) {
+ $group_id = $r[0]['id'];
+ $group_hash = $r[0]['hash'];
+ }
+
+ if(! $group_id)
+ return false;
+
+ // remove group from default posting lists
+ $r = q("SELECT channel_default_group, channel_allow_gid, channel_deny_gid FROM channel WHERE channel_id = %d LIMIT 1",
+ intval($uid)
+ );
+ if($r) {
+ $user_info = $r[0];
+ $change = false;
+
+ if($user_info['channel_default_group'] == $group_hash) {
+ $user_info['channel_default_group'] = '';
+ $change = true;
+ }
+ if(strpos($user_info['channel_allow_gid'], '<' . $group_hash . '>') !== false) {
+ $user_info['channel_allow_gid'] = str_replace('<' . $group_hash . '>', '', $user_info['channel_allow_gid']);
+ $change = true;
+ }
+ if(strpos($user_info['channel_deny_gid'], '<' . $group_hash . '>') !== false) {
+ $user_info['channel_deny_gid'] = str_replace('<' . $group_hash . '>', '', $user_info['channel_deny_gid']);
+ $change = true;
+ }
+
+ if($change) {
+ q("UPDATE channel SET channel_default_group = '%s', channel_allow_gid = '%s', channel_deny_gid = '%s'
+ WHERE channel_id = %d",
+ intval($user_info['channel_default_group']),
+ dbesc($user_info['channel_allow_gid']),
+ dbesc($user_info['channel_deny_gid']),
+ intval($uid)
+ );
+ }
+ }
+
+ // remove all members
+ $r = q("DELETE FROM group_member WHERE uid = %d AND gid = %d ",
+ intval($uid),
+ intval($group_id)
+ );
+
+ // remove group
+ $r = q("UPDATE groups SET deleted = 1 WHERE uid = %d AND gname = '%s'",
+ intval($uid),
+ dbesc($name)
+ );
+
+ $ret = $r;
+
+ }
+
+ Libsync::build_sync_packet($uid,null,true);
+
+ return $ret;
+ }
+
+
+ static function byname($uid,$name) {
+ if((! $uid) || (! strlen($name)))
+ return false;
+ $r = q("SELECT * FROM groups WHERE uid = %d AND gname = '%s' LIMIT 1",
+ intval($uid),
+ dbesc($name)
+ );
+ if($r)
+ return $r[0]['id'];
+ return false;
+ }
+
+
+ static function rec_byhash($uid,$hash) {
+ if((! $uid) || (! strlen($hash)))
+ return false;
+ $r = q("SELECT * FROM groups WHERE uid = %d AND hash = '%s' LIMIT 1",
+ intval($uid),
+ dbesc($hash)
+ );
+ if($r)
+ return $r[0];
+ return false;
+ }
+
+
+ static function member_remove($uid,$name,$member) {
+ $gid = self::byname($uid,$name);
+ if(! $gid)
+ return false;
+ if(! ( $uid && $gid && $member))
+ return false;
+ $r = q("DELETE FROM group_member WHERE uid = %d AND gid = %d AND xchan = '%s' ",
+ intval($uid),
+ intval($gid),
+ dbesc($member)
+ );
+
+ Libsync::build_sync_packet($uid,null,true);
+
+ return $r;
+ }
+
+
+ static function member_add($uid,$name,$member,$gid = 0) {
+ if(! $gid)
+ $gid = self::byname($uid,$name);
+ if((! $gid) || (! $uid) || (! $member))
+ return false;
+
+ $r = q("SELECT * FROM group_member WHERE uid = %d AND gid = %d AND xchan = '%s' LIMIT 1",
+ intval($uid),
+ intval($gid),
+ dbesc($member)
+ );
+ if($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(! $r)
+ $r = q("INSERT INTO group_member (uid, gid, xchan)
+ VALUES( %d, %d, '%s' ) ",
+ intval($uid),
+ intval($gid),
+ dbesc($member)
+ );
+
+ Libsync::build_sync_packet($uid,null,true);
+
+ return $r;
+ }
+
+
+ static function members($gid) {
+ $ret = array();
+ if(intval($gid)) {
+ $r = q("SELECT * FROM group_member
+ LEFT JOIN abook ON abook_xchan = group_member.xchan left join xchan on xchan_hash = abook_xchan
+ WHERE gid = %d AND abook_channel = %d and group_member.uid = %d and xchan_deleted = 0 and abook_self = 0 and abook_blocked = 0 and abook_pending = 0 ORDER BY xchan_name ASC ",
+ intval($gid),
+ intval(local_channel()),
+ intval(local_channel())
+ );
+ if($r)
+ $ret = $r;
+ }
+ return $ret;
+ }
+
+ static function members_xchan($gid) {
+ $ret = [];
+ if(intval($gid)) {
+ $r = q("SELECT xchan FROM group_member WHERE gid = %d AND uid = %d",
+ intval($gid),
+ intval(local_channel())
+ );
+ if($r) {
+ foreach($r as $rr) {
+ $ret[] = $rr['xchan'];
+ }
+ }
+ }
+ return $ret;
+ }
+
+ static function members_profile_xchan($uid,$gid) {
+ $ret = [];
+
+ if(intval($gid)) {
+ $r = q("SELECT abook_xchan as xchan from abook left join profile on abook_profile = profile_guid where profile.id = %d and profile.uid = %d",
+ intval($gid),
+ intval($uid)
+ );
+ if($r) {
+ foreach($r as $rr) {
+ $ret[] = $rr['xchan'];
+ }
+ }
+ }
+ return $ret;
+ }
+
+
+
+
+ static function select($uid,$group = '') {
+
+ $grps = [];
+ $o = '';
+
+ $r = q("SELECT * FROM groups WHERE deleted = 0 AND uid = %d ORDER BY gname ASC",
+ intval($uid)
+ );
+ $grps[] = array('name' => '', 'hash' => '0', 'selected' => '');
+ if($r) {
+ foreach($r as $rr) {
+ $grps[] = array('name' => $rr['gname'], 'id' => $rr['hash'], 'selected' => (($group == $rr['hash']) ? 'true' : ''));
+ }
+
+ }
+ logger('select: ' . print_r($grps,true), LOGGER_DATA);
+
+ $o = replace_macros(get_markup_template('group_selection.tpl'), array(
+ '$label' => t('Add new connections to this privacy group'),
+ '$groups' => $grps
+ ));
+ return $o;
+ }
+
+
+
+
+ static function widget($every="connections",$each="group",$edit = false, $group_id = 0, $cid = '',$mode = 1) {
+
+ $o = '';
+
+ if(! (local_channel() && feature_enabled(local_channel(),'groups'))) {
+ return '';
+ }
+
+ $groups = array();
+
+ $r = q("SELECT * FROM groups WHERE deleted = 0 AND uid = %d ORDER BY gname ASC",
+ intval($_SESSION['uid'])
+ );
+ $member_of = array();
+ if($cid) {
+ $member_of = self::containing(local_channel(),$cid);
+ }
+
+ if($r) {
+ foreach($r as $rr) {
+ $selected = (($group_id == $rr['id']) ? ' group-selected' : '');
+
+ if ($edit) {
+ $groupedit = [ 'href' => "group/".$rr['id'], 'title' => t('edit') ];
+ }
+ else {
+ $groupedit = null;
+ }
+
+ $groups[] = [
+ 'id' => $rr['id'],
+ 'enc_cid' => base64url_encode($cid),
+ 'cid' => $cid,
+ 'text' => $rr['gname'],
+ 'selected' => $selected,
+ 'href' => (($mode == 0) ? $each.'?f=&gid='.$rr['id'] : $each."/".$rr['id']) . ((x($_GET,'new')) ? '&new=' . $_GET['new'] : '') . ((x($_GET,'order')) ? '&order=' . $_GET['order'] : ''),
+ 'edit' => $groupedit,
+ 'ismember' => in_array($rr['id'],$member_of),
+ ];
+ }
+ }
+
+
+ $tpl = get_markup_template("group_side.tpl");
+ $o = replace_macros($tpl, array(
+ '$title' => t('Privacy Groups'),
+ '$edittext' => t('Edit group'),
+ '$createtext' => t('Add privacy group'),
+ '$ungrouped' => (($every === 'contacts') ? t('Channels not in any privacy group') : ''),
+ '$groups' => $groups,
+ '$add' => t('add'),
+ ));
+
+
+ return $o;
+ }
+
+
+ static function expand($g) {
+ if(! (is_array($g) && count($g)))
+ return array();
+
+ $ret = [];
+ $x = [];
+
+ // private profile linked virtual groups
+
+ foreach($g as $gv) {
+ if(substr($gv,0,3) === 'vp.') {
+ $profile_hash = substr($gv,3);
+ if($profile_hash) {
+ $r = q("select abook_xchan from abook where abook_profile = '%s'",
+ dbesc($profile_hash)
+ );
+ if($r) {
+ foreach($r as $rv) {
+ $ret[] = $rv['abook_xchan'];
+ }
+ }
+ }
+ }
+ else {
+ $x[] = $gv;
+ }
+ }
+
+ if($x) {
+ stringify_array_elms($x,true);
+ $groups = implode(',', $x);
+ if($groups) {
+ $r = q("SELECT xchan FROM group_member WHERE gid IN ( select id from groups where hash in ( $groups ))");
+ if($r) {
+ foreach($r as $rr) {
+ $ret[] = $rr['xchan'];
+ }
+ }
+ }
+ }
+ return $ret;
+ }
+
+
+ static function member_of($c) {
+ $r = q("SELECT groups.gname, groups.id FROM groups LEFT JOIN group_member ON group_member.gid = groups.id WHERE group_member.xchan = '%s' AND groups.deleted = 0 ORDER BY groups.gname ASC ",
+ dbesc($c)
+ );
+
+ return $r;
+
+ }
+
+ static function containing($uid,$c) {
+
+ $r = q("SELECT gid FROM group_member WHERE uid = %d AND group_member.xchan = '%s' ",
+ intval($uid),
+ dbesc($c)
+ );
+
+ $ret = array();
+ if($r) {
+ foreach($r as $rr)
+ $ret[] = $rr['gid'];
+ }
+
+ return $ret;
+ }
+} \ No newline at end of file
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