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AlternC/bureau/class/m_quota.php

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<?php
/*
----------------------------------------------------------------------
AlternC - Web Hosting System
Copyright (C) 2000-2012 by the AlternC Development Team.
https://alternc.org/
----------------------------------------------------------------------
LICENSE
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License (GPL)
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
To read the license please visit http://www.gnu.org/copyleft/gpl.html
----------------------------------------------------------------------
Purpose of file: Manage user quota
----------------------------------------------------------------------
*/
/**
* Class for hosting quotas management
*
* This class manages services' quotas for each user of AlternC.
* The available quotas for each service is stored in the system.quotas
* mysql table. The used value is computed by the class using a
* callback function <code>alternc_quota_check($uid)</code> that
* may by exported by each service class.<br>
* each class may also export a function <code>alternc_quota_names()</code>
* that returns an array with the quotas names managed by this class.
*
*/
class m_quota {
var $disk=Array( /* disk resource for which we will manage quotas */
"web"=>"web");
var $quotas;
var $clquota; // Which class manage which quota.
/* ----------------------------------------------------------------- */
/**
* Constructor
*/
function m_quota() {
}
private function dummy_for_translation() {
_("quota_web");
}
/* ----------------------------------------------------------------- */
/** Check if a user can use a ressource.
* @param string $ressource the ressource name (a named quota)
* @Return TRUE if the user can create a ressource (= is there any quota left ?)
*/
function cancreate($ressource="") {
$t=$this->getquota($ressource);
return $t["u"]<$t["t"];
}
/* ----------------------------------------------------------------- */
/** List the quota-managed services in the server
* @Return array the quota names and description (translated)
*/
function qlist() {
global $classes,$hooks;
$qlist=array();
reset($this->disk);
while (list($key,$val)=each($this->disk)) {
$qlist[$key]=_("quota_".$key); // those are specific disks quotas.
}
foreach($this->getquota() as $qq) {
if (isset($qq['name'])) {
$qlist[$qq['name']]=$qq['description'];
}
}
return $qlist;
}
/**
* Synchronise the quotas of the users with the quota of the
* user's profile.
* If the user have a greater quota than the profile, no change.
* If the quota entry doesn't exist for the user, create it with
* the defaults value.
*/
function synchronise_user_profile() {
global $db,$err;
$err->log("quota","synchronise_user_profile");
$q="insert into quotas select m.uid as uid, d.quota as name, d.value as total from membres m, defquotas d left join quotas q on q.name=d.quota where m.type=d.type ON DUPLICATE KEY UPDATE total = greatest(d.value, quotas.total);";
if (!$db->query($q)) return false;
return true;
}
/*
* Create default quota in the profile
* when a new quota appear
*
*/
function create_missing_quota_profile() {
global $db,$quota,$err;
$err->log("quota","create_missing_quota_profile");
$qt=$quota->getquota('',true);
$type=$quota->listtype();
foreach($type as $t) {
foreach($qt as $q=>$vv) {
$db->query("INSERT IGNORE defquotas (value,quota,type) VALUES (0,'$q','$t');");
}
}
return true;
}
/* ----------------------------------------------------------------- */
/** Return a ressource usage (u) and total quota (t)
* @param string $ressource ressource to get quota of
* @Return array the quota used and total for this ressource (or for all ressource if unspecified)
*/
function getquota($ressource="",$recheck=false) {
global $db,$err,$cuid,$get_quota_cache,$hooks;
$err->log("quota","getquota",$ressource);
if ($recheck) { // rebuilding quota
$get_quota_cache=null;
$this->quota=array();
}
if (! empty($get_quota_cache[$cuid]) ) {
// This function is called many time each webpage, so I cache the result
$this->quotas = $get_quota_cache[$cuid];
} else {
$res=$hooks->invoke("hook_quota_get");
foreach($res as $r) {
$this->quotas[$r['name']]=$r;
$this->quotas[$r['name']]['u']=$r['used']; // retrocompatibilité
$this->quotas[$r['name']]['t']=0; // Default quota = 0
}
reset($this->disk);
while (list($key,$val)=each($this->disk)) {
$a=array();
exec("/usr/lib/alternc/quota_get ".$cuid ,$a);
$a[0]=intval($a[0]);
$a[1]=intval($a[1]);
$this->quotas[$val]=array("name"=>"$val", 'description'=>_("quota_".$val), "t"=>$a[1],"u"=>$a[0]);
}
// Get the allowed quota from database.
$db->query("select name, total from quotas where uid='$cuid';");
while ( $db->next_record() ) {
$this->quotas[$db->f('name')]['t']=$db->f('total');
}
$get_quota_cache[$cuid] = $this->quotas;
}
if ($ressource) {
if (isset($this->quotas[$ressource]) ) {
return $this->quotas[$ressource];
} else {
return 0;
}
} else {
return $this->quotas;
}
}
/* ----------------------------------------------------------------- */
/** Set the quota for a user (and for a ressource)
* @param string $ressource ressource to set quota of
* @param integer size of the quota (available or used)
*/
function setquota($ressource,$size) {
global $err,$db,$cuid;
$err->log("quota","setquota",$ressource."/".$size);
if (floatval($size)==0) $size="0";
if (isset($this->disk[$ressource])) {
// It's a disk resource, update it with shell command
exec("sudo /usr/lib/alternc/quota_edit $cuid $size &> /dev/null &");
// Now we check that the value has been written properly :
exec("sudo /usr/lib/alternc/quota_get $cuid &> /dev/null &",$a);
if (!isset($a[1]) || $size!=$a[1]) {
$err->raise("quota",_("Error writing the quota entry!"));
return false;
}
}
// We check that this ressource exists for this client :
$db->query("SELECT * FROM quotas WHERE uid='$cuid' AND name='$ressource'");
if ($db->num_rows()) {
$db->query("UPDATE quotas SET total='$size' WHERE uid='$cuid' AND name='$ressource';");
} else {
$db->query("INSERT INTO quotas (uid,name,total) VALUES ('$cuid','$ressource','$size');");
}
return true;
}
/* ----------------------------------------------------------------- */
/**
* Erase all quota information about the user.
*/
function delquotas() {
global $db,$err,$cuid;
$err->log("quota","delquota");
$db->query("DELETE FROM quotas WHERE uid='$cuid';");
return true;
}
/* ----------------------------------------------------------------- */
/** Get the default quotas as an associative array
* @return array the array of the default quotas
*/
function getdefaults() {
global $db;
$c=array();
$db->query("SELECT type,quota FROM defquotas WHERE type='default'");
if(!$db->next_record())
$this->addtype('default');
$db->query("SELECT value,quota,type FROM defquotas ORDER BY type,quota");
while($db->next_record()) {
$type = $db->f("type");
$c[$type][$db->f("quota")] = $db->f("value");
}
return $c;
}
/* ----------------------------------------------------------------- */
/** Set the default quotas
* @param array associative array of quota (key=>val)
*/
function setdefaults($newq) {
global $db;
$qlist=$this->qlist();
foreach($newq as $type => $quotas) {
foreach($quotas as $qname => $value) {
if(array_key_exists($qname, $qlist)) {
if(!$db->query("REPLACE INTO defquotas (value,quota,type) VALUES ($value,'$qname','$type');"))
return false;
}
}
}
return true;
}
/* ----------------------------------------------------------------- */
/** Add an account type for quotas
* @param string $type account type to be added
* @return boolean true if all went ok
*/
function addtype($type) {
global $db,$err;
$qlist=$this->qlist();
if(empty($type)) return false;
$type=strtolower($type);
if (!preg_match("#^[a-z0-9]*$#",$type)) {
$err->raise("quota", "Type can only contains characters a-z and 0-9");
return false;
}
while (list($key,$val)=each($qlist)) {
if(!$db->query("INSERT IGNORE INTO defquotas (quota,type) VALUES('$key', '$type');")
|| $db->affected_rows() == 0)
return false;
}
return true;
}
/* ----------------------------------------------------------------- */
/** List for quotas
* @return array
*/
function listtype() {
global $db;
$db->query("SELECT distinct(type) FROM defquotas ORDER by type");
$t=array();
while ($db->next_record()) {
$t[] = $db->f("type");
}
return $t;
}
/* ----------------------------------------------------------------- */
/** Delete an account type for quotas
* @param string $type account type to be deleted
* @return boolean true if all went ok
*/
function deltype($type) {
global $db;
$qlist=$this->qlist();
if($db->query("UPDATE membres SET type='default' WHERE type='$type'") &&
$db->query("DELETE FROM defquotas WHERE type='$type'")) {
return true;
} else {
return false;
}
}
/* ----------------------------------------------------------------- */
/** Create default quotas entries for a new user.
* The user we are talking about is in the global $cuid.
*/
function addquotas() {
global $db,$err,$cuid;
$err->log("quota","addquota");
$ql=$this->qlist();
reset($ql);
$db->query("SELECT type,quota FROM defquotas WHERE type='default'");
if(!$db->next_record())
$this->addtype('default');
$db->query("SELECT type FROM membres WHERE uid='$cuid'");
$db->next_record();
$t = $db->f("type");
foreach($ql as $res => $val) {
$db->query("SELECT value FROM defquotas WHERE quota='$res' AND type='$t'");
$q = $db->next_record() ? $db->f("value") : 0;
$this->setquota($res, $q);
}
return true;
}
/* ----------------------------------------------------------------- */
/** Return a quota value with its unit (when it is a space quota)
* in MB, GB, TB ...
* @param string $type The quota type
* @param integer $value The quota value
* @return string a quota value with its unit.
*/
function display_val($type, $value) {
switch ($type) {
case 'bw_web':
return format_size($value);
case 'web':
return format_size($value*1024);
default:
return $value;
}
}
/* get size_xx function (filled by spoolsize.php) */
function _get_sum_sql($sql) {
global $db,$err,$cuid;
$db->query($sql);
if ($db->num_rows() == 0) {
return -1;
} else {
$db->next_record();
$r = $db->Record;
return $r['sum'];
}
}
function _get_count_sql($sql) {
global $db,$err,$cuid;
$db->query($sql);
if ($db->num_rows() == 0) {
return 0;
} else {
$db->next_record();
$r = $db->Record;
return $r['count'];
}
}
function _get_size_and_record_sql($sql) {
global $db,$err,$cuid;
$db->query($sql);
if ($db->num_rows() == 0) {
return array();
} else {
$ret = array();
while ($db->next_record()) {
$ret[] = $db->Record;
}
return $ret;
}
}
/* sum of websites sizes from all users */
function get_size_web_sum_all() {
return $this->_get_sum_sql("SELECT SUM(size) AS sum FROM size_web;");
}
/* sum of websites sizes from one user */
function get_size_web_sum_user($u) {
return $this->_get_sum_sql("SELECT SUM(size) AS sum FROM size_web WHERE uid='$u';");
}
/* sum of mailbox sizes from all domains */
function get_size_mail_sum_all() {
return $this->_get_sum_sql("SELECT SUM(bytes) AS sum FROM mailbox;");
}
/* sum of mailbox sizes for one domain */
function get_size_mail_sum_domain($dom) {
return $this->_get_sum_sql("SELECT SUM(quota_dovecot) AS sum FROM dovecot_view WHERE user LIKE '%@{$dom}';");
}
/* count of mailbox sizes from all domains */
function get_size_mail_count_all() {
return $this->_get_count_sql("SELECT COUNT(*) AS count FROM mailbox;");
}
/* count of mailbox for one domain */
function get_size_mail_count_domain($dom) {
return $this->_get_count_sql("SELECT COUNT(*) AS count FROM dovecot_view WHERE user LIKE '%@{$dom}'");
}
/* get list of mailbox alias and size for one domain */
function get_size_mail_details_domain($dom) {
return $this->_get_size_and_record_sql("SELECT user as alias,quota_dovecot as size FROM dovecot_view WHERE user LIKE '%@{$dom}' ORDER BY alias;");
}
/* sum of mailman lists sizes from all domains */
function get_size_mailman_sum_all() {
return $this->_get_sum_sql("SELECT SUM(size) AS sum FROM size_mailman;");
}
/* sum of mailman lists sizes for one domain */
function get_size_mailman_sum_domain($dom) {
return $this->_get_sum_sql("SELECT SUM(size) AS sum FROM size_mailman WHERE list LIKE '%@{$dom}'");
}
/* sum of mailman lists for one user */
function get_size_mailman_sum_user($u) {
return $this->_get_sum_sql("SELECT SUM(size) AS sum FROM size_mailman WHERE uid = '{$u}'");
}
/* count of mailman lists sizes from all domains */
function get_size_mailman_count_all() {
return $this->_get_count_sql("SELECT COUNT(*) AS count FROM size_mailman;");
}
/* count of mailman lists for one user */
function get_size_mailman_count_user($u) {
return $this->_get_count_sql("SELECT COUNT(*) AS count FROM size_mailman WHERE uid = '{$u}'");
}
/* get list of mailman list and size for one user */
function get_size_mailman_details_user($u) {
return $this->_get_size_and_record_sql("SELECT s.size,CONCAT(m.list,'@',m.domain) as list FROM size_mailman s LEFT JOIN mailman m ON s.list=m.name WHERE s.uid='{$u}' ORDER BY s.list ASC");
}
/* sum of databases sizes from all users */
function get_size_db_sum_all() {
return $this->_get_sum_sql("SELECT SUM(size) AS sum FROM size_db;");
}
/* sum of databases sizes for one user */
function get_size_db_sum_user($u) {
return $this->_get_sum_sql("SELECT SUM(size) AS sum FROM size_db WHERE db = '{$u}' OR db LIKE '{$u}\_%'");
}
/* count of databases from all users */
function get_size_db_count_all() {
return $this->_get_count_sql("SELECT COUNT(*) AS count FROM size_db;");
}
/* count of databases for one user */
function get_size_db_count_user($u) {
return $this->_get_count_sql("SELECT COUNT(*) AS count FROM size_db WHERE db = '{$u}' OR db LIKE '{$u}\_%'");
}
/* get list of databases name and size for one user */
function get_size_db_details_user($u) {
return $this->_get_size_and_record_sql("SELECT db,size FROM size_db WHERE db='{$u}' OR db LIKE '{$u}\_%';");
}
/* Return appropriate value and unit of a size given in Bytes (e.g. 1024 Bytes -> return 1 KB) */
function get_size_unit($size) {
$units=array(1073741824=>_("GB"), 1048576=>_("MB"), 1024=>_("KB"), 0=>_("B"));
foreach($units as $value=>$unit){
if($size>=$value){
$size=str_pad(round($size/($value ? $value : 1), 1), 5, ' ', STR_PAD_LEFT);
return array('size'=>$size, 'unit'=>$unit);
}
}
}
/* ==== Hook functions ==== */
/* ----------------------------------------------------------------- */
/** Hook function call when a user is deleted
* AlternC's standard function called when a user is deleted
* globals $cuid is the appropriate user
*/
function hook_admin_del_member() {
$this->delquotas();
}
/* ----------------------------------------------------------------- */
/** Hook function called when a user is created
* This function initialize the user's quotas.
* globals $cuid is the appropriate user
*/
function hook_admin_add_member() {
global $err;
$err->log("quota","hook_admin_add_member");
$this->addquotas();
$this->getquota('',true); // actualise quota
}
/* ----------------------------------------------------------------- */
/** Exports all the quota related information for an account.
* @access private
* EXPERIMENTAL function ;)
*/
function alternc_export_conf() {
global $db,$err;
$err->log("quota","export");
$str=" <quota>";
$q=$this->getquota();
foreach ($q as $k=>$v) {
$str.=" <$k>\n";
$str.=" <used>".($v["u"])."</used>\n";
$str.=" <total>".($v["t"])."</total>\n";
$str.=" </$k>\n";
}
$str.="</quota>\n";
return $str;
}
} /* Class m_quota */
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