571 lines
21 KiB
PHP
571 lines
21 KiB
PHP
<?php
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/*
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----------------------------------------------------------------------
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AlternC - Web Hosting System
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Copyright (C) 2000-2014 by the AlternC Development Team.
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https://alternc.org/
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----------------------------------------------------------------------
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LICENSE
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License (GPL)
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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To read the license please visit http://www.gnu.org/copyleft/gpl.html
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----------------------------------------------------------------------
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Purpose of file: Manage SSL Certificates and HTTPS Hosting
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----------------------------------------------------------------------
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*/
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/* ----------------------------------------------------------------- */
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/**
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* SSL Certificates management class
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*/
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class m_ssl {
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const STATUS_PENDING = 0; // we have a key / csr, but no CRT
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const STATUS_OK = 1; // we have the key, csr, crt, chain
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const STATUS_EXPIRED = 99; // The certificate is now expired.
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public $error="";
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// Includes one or more of those flags to see only those certificates
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// when listing them:
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const FILTER_PENDING = 1;
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const FILTER_OK = 2;
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const FILTER_EXPIRED = 4;
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const FILTER_SHARED = 8;
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const SSL_INCRON_FILE = "/var/run/alternc/generate_certif_alias";
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/* ----------------------------------------------------------------- */
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/**
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* Constructor
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*/
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function m_ssl() {
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}
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/* ----------------------------------------------------------------- */
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/**
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* Hook to add the "ssl certificate" menu in the Panel
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*/
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function hook_menu() {
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global $quota,$db,$cuid;
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$q = $quota->getquota("ssl");
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$obj=null;
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if ($q['t']>0) {
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$obj = array(
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'title' => _("SSL Certificates"),
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'ico' => 'images/ssl.png',
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'link' => 'toggle',
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'pos' => 130,
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'links' => array(),
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) ;
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if ( $quota->cancreate("ssl") ) {
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$obj['links'][] =
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array (
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'ico' => 'images/new.png',
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'txt' => _("New SSL certificate"),
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'url' => "ssl_new.php",
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'class' => '',
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);
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}
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// or admin shared >0 !
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$db->query("SELECT COUNT(*) AS cnt FROM certificates WHERE uid='$cuid' OR shared=1");
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$used=$q['u'];
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if ($db->next_record()) {
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$used=$db->f("cnt");
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}
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if ( $used > 0 ) { // if there are some SSL certificates
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$obj['links'][] =
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array (
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'txt' => _("List SSL Certificates"),
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'url' => "ssl_list.php"
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);
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}
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}
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return $obj;
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}
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/* ----------------------------------------------------------------- */
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/** Return all the SSL certificates for an account (or the searched one)
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* @param $filter an integer telling which certificate we want to see (see FILTER_* constants above)
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* the default is showing all certificate, but only Pending and OK certificates, not expired or shared one
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* when there is more than 10.
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* @return array all the ssl certificate this user can use
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* (each array is the content of the certificates table)
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*/
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function get_list(&$filter=null) {
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global $db,$err,$cuid;
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$err->log("ssl","get_list");
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$r=array();
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// If we have no filter, we filter by default on pending and ok certificates if there is more than 10 of them for the same user.
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if (is_null($filter)) {
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$db->query("SELECT count(*) AS cnt FROM certificates WHERE uid='$cuid' OR shared=1;");
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$db->next_record();
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if ($db->f("cnt")>10) {
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$filter=(self::FILTER_PENDING | self::FILTER_OK);
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} else {
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$filter=(self::FILTER_PENDING | self::FILTER_OK | self::FILTER_EXPIRED | self::FILTER_SHARED);
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}
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}
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// filter the filter values :)
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$filter=($filter & (self::FILTER_PENDING | self::FILTER_OK | self::FILTER_EXPIRED | self::FILTER_SHARED));
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// Here filter can't be null (and will be returned to the caller !)
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$sql="";
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if ($filter & self::FILTER_SHARED) {
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$sql=" (uid='$cuid' OR shared=1) ";
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} else {
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$sql=" uid='$cuid' ";
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}
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$sql.=" AND status IN (-1";
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if ($filter & self::FILTER_PENDING) $sql.=",".self::STATUS_PENDING;
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if ($filter & self::FILTER_OK) $sql.=",".self::STATUS_OK;
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if ($filter & self::FILTER_EXPIRED) $sql.=",".self::STATUS_EXPIRED;
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$sql.=") ";
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$db->query("SELECT *, UNIX_TIMESTAMP(validstart) AS validstartts, UNIX_TIMESTAMP(validend) AS validendts FROM certificates WHERE $sql ORDER BY shared, fqdn;");
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if ($db->num_rows()) {
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while ($db->next_record()) {
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$r[]=$db->Record;
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}
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return $r;
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} else {
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$err->raise("ssl",_("No SSL certificates available"));
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return array();
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}
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}
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/* ----------------------------------------------------------------- */
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/** Generate a new CSR, a new Private RSA Key, for FQDN.
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* @param $fqdn string the FQDN of the domain name for which we want a CSR.
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* a wildcard certificate must start by *.
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* @return integer the Certificate ID created in the MySQL database
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* or false if an error occurred
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*/
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function new_csr($fqdn) {
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global $db,$err,$cuid;
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$err->log("ssl","new_csr");
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if (substr($fqdn,0,2)=="*.") {
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$f=substr($fqdn,2);
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} else {
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$f=$fqdn;
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}
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if (checkfqdn($f)) {
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$err->raise("ssl",_("Bad FQDN domain name"));
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return false;
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}
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putenv("OPENSSL_CONF=/etc/alternc/openssl.cnf");
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$pkey=openssl_pkey_new();
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if (!$pkey) {
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$err->raise("ssl",_("Can't generate a private key (1)"));
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return false;
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}
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if (!openssl_pkey_export($pkey, $privKey)) {
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$err->raise("ssl",_("Can't generate a private key (2)"));
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return false;
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}
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$dn=array("commonName" => $fqdn);
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// override the (not taken from openssl.cnf) digest to use SHA-2 / SHA256 and not SHA-1 or MD5 :
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$config=array("digest_alg"=>"sha256");
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$csr=openssl_csr_new($dn, $pkey,$config);
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openssl_csr_export($csr, $csrout);
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$db->query("INSERT INTO certificates SET uid='$cuid', status=".self::STATUS_PENDING.", shared=0, fqdn='".addslashes($fqdn)."', altnames='', validstart=NOW(), sslcsr='".addslashes($csrout)."', sslkey='".addslashes($privKey)."';");
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if (!($id=$db->lastid())) {
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$err->raise("ssl",_("Can't generate a CSR"));
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return false;
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}
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return $id;
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}
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/* ----------------------------------------------------------------- */
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/** Return all informations of a given certificate for the current user.
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* @return array all the informations of the current certificate as a hash.
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*/
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function get_certificate($id) {
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global $db,$err,$cuid;
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$err->log("ssl","get_certificate");
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$id=intval($id);
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$db->query("SELECT *, UNIX_TIMESTAMP(validstart) AS validstartts, UNIX_TIMESTAMP(validend) AS validendts FROM certificates WHERE (uid='$cuid' OR (shared=1 AND status=".self::STATUS_OK.") ) AND id='$id';");
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if (!$db->next_record()) {
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$err->raise("ssl",_("Can't find this Certifcate"));
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return false;
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}
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return $db->Record;
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}
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/* ----------------------------------------------------------------- */
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/** Share (or unshare) an ssl certificate
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* @param $id integer the id of the certificate in the table.
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* @param $action integer share (1) or unshare (0) this certificate
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* @return boolean
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*/
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function share($id,$action=1) {
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global $db,$err,$cuid;
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$err->log("ssl","share");
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$id=intval($id);
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$db->query("SELECT id FROM certificates WHERE uid='$cuid' AND status=".self::STATUS_OK." AND id='$id';");
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if (!$db->next_record()) {
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$err->raise("ssl",_("Can't find this Certifcate"));
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return false;
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}
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if ($action) $action=1; else $action=0;
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$db->query("UPDATE certificates SET shared=$action WHERE id='$id';");
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return true;
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}
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/* ----------------------------------------------------------------- */
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/** Return all the subdomains that can be ssl-enabled for the current account.
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* @return array of strings : all the subdomains.
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* Excludes the one for which a cert is already available
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*/
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function get_new_advice() {
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global $db,$err,$cuid;
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$err->log("ssl","get_new_advice");
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$r=array();
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// my certificates, either OK or PENDING (not expired) or the SHARED one (only OK then)
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$db->query("SELECT fqdn FROM certificates WHERE
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(uid='$cuid' AND status IN (".self::STATUS_PENDING.",".self::STATUS_OK.") )
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OR (shared=1 AND status=".self::STATUS_OK.")
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ORDER BY shared, fqdn;");
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$r=array();
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while ($db->next_record()) {
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$r[]=$db->f("fqdn");
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}
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// Now we get all our subdomains for certain domaines_types
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$db->query("SELECT sub,domaine FROM sub_domaines WHERE compte='$cuid' AND type IN ('vhost', 'url', 'roundcube', 'squirrelmail', 'panel', 'php52');");
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$advice=array();
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while ($db->next_record()) {
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$me=$db->f("sub");
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if ($me) $me.=".";
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$me.=$db->f("domaine");
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if (!in_array($me,$r) && !in_array($me,$advice)) {
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$advice[]=$me;
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}
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if (!in_array("*.".$db->f("domaine"),$r) && !in_array("*.".$db->f("domaine"),$advice)) {
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$advice[]="*.".$db->f("domaine");
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}
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}
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sort($advice);
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return($advice);
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}
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/* ----------------------------------------------------------------- */
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/** Import an existing ssl Key, Certificate and (maybe) a Chained Cert
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* @param $key string the X.509 PEM-encoded RSA key
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* @param $crt string the X.509 PEM-encoded certificate, which *must*
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* be the one signinf the private RSA key in $key
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* @param $chain string the X.509 PEM-encoded list of SSL Certificate chain if intermediate authorities
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* @return integer the ID of the newly created certificate in the table
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* or false if an error occurred
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*/
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function import_cert($key,$crt,$chain) {
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global $cuid, $err, $db;
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$err->log("ssl","import_cert");
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$result=$this->check_cert($crt,$chain,$key);
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if ($result===false) {
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$err->raise("ssl",$this->error);
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return false;
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}
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list($crt,$chain,$key,$crtdata)=$result;
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$validstart=$crtdata['validFrom_time_t'];
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$validend=$crtdata['validTo_time_t'];
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$fqdn=$crtdata["subject"]["CN"];
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$altnames=$this->parseAltNames($crtdata["extensions"]["subjectAltName"]);
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// Everything is PERFECT and has been thoroughly checked, let's insert those in the DB !
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$sql="INSERT INTO certificates SET uid='$cuid', status=".self::STATUS_OK.", shared=0, fqdn='".addslashes($fqdn)."', altnames='".addslashes($altnames)."', validstart=FROM_UNIXTIME(".intval($validstart)."), validend=FROM_UNIXTIME(".intval($validend)."), sslkey='".addslashes($key)."', sslcrt='".addslashes($crt)."', sslchain='".addslashes($chain)."';";
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$db->query($sql);
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if (!($id=$db->lastid())) {
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$err->raise("ssl",_("Can't save the Key/Crt/Chain now. Please try later."));
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return false;
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}
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return $id;
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}
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/* ----------------------------------------------------------------- */
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/** Import an ssl certificate into an existing certificate entry in the DB.
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* (finalize an enrollment process)
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* @param $certid integer the ID in the database of the SSL Certificate
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* @param $crt string the X.509 PEM-encoded certificate, which *must*
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* be the one signinf the private RSA key in certificate $certid
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* @param $chain string the X.509 PEM-encoded list of SSL Certificate chain if intermediate authorities
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* @return integer the ID of the updated certificate in the table
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* or false if an error occurred
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*/
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function finalize($certid,$crt,$chain) {
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global $cuid, $err, $db;
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$err->log("ssl","finalize");
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$certid=intval($certid);
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$result=$this->check_cert($crt,$chain,"",$certid);
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if ($result===false) {
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$err->raise("ssl",$this->error);
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return false;
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}
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list($crt,$chain,$key,$crtdata)=$result;
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$validstart=$crtdata['validFrom_time_t'];
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$validend=$crtdata['validTo_time_t'];
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$fqdn=$crtdata["subject"]["CN"];
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$altnames=$this->parseAltNames($crtdata["extensions"]["subjectAltName"]);
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// Everything is PERFECT and has been thoroughly checked, let's insert those in the DB !
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$sql="UPDATE certificates SET status=".self::STATUS_OK.", shared=0, fqdn='".addslashes($fqdn)."', altnames='".addslashes($altnames)."', validstart=FROM_UNIXTIME(".intval($validstart)."), validend=FROM_UNIXTIME(".intval($validend)."), sslcrt='".addslashes($crt)."', sslchain='".addslashes($chain)."' WHERE id='$certid' ;";
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if (!$db->query($sql)) {
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$err->raise("ssl",_("Can't save the Crt/Chain now. Please try later."));
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return false;
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}
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return $certid;
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}
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/* ----------------------------------------------------------------- */
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/** Function called by a hook when an AlternC member is deleted.
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* @access private
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* TODO: delete unused ssl certificates ?? > do this in the crontab.
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*/
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function alternc_del_member() {
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global $db,$err,$cuid;
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$err->log("ssl","alternc_del_member");
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$db->query("UPDATE certificates SET ssl_action='DELETE' WHERE uid='$cuid'");
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return true;
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}
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/* ----------------------------------------------------------------- */
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/** Hook which returns the used quota for the $name service for the current user.
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* @param $name string name of the quota
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* @return integer the number of service used or false if an error occured
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* @access private
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*/
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function hook_quota_get() {
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global $db,$err,$cuid;
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$err->log("ssl","getquota");
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$q=Array("name"=>"ssl", "description"=>_("SSL Certificates"), "used"=>0);
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$db->query("SELECT COUNT(*) AS cnt FROM certificates WHERE uid='$cuid' AND status!=".self::STATUS_EXPIRED);
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if ($db->next_record()) {
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$q['used']=$db->f("cnt");
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}
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return $q;
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}
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/* ----------------------------------------------------------------- */
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/** Export every information for an AlternC's account
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* @access private
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* EXPERIMENTAL 'sid' function ;)
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*/
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function alternc_export_conf() {
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global $db,$err;
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$err->log("ssl","export");
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$f=$this->get_list();
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$str=" <ssl>";
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$db->query("SELECT COUNT(*) AS cnt FROM certificates WHERE uid='$cuid' AND status!=".self::STATUS_EXPIRED);
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while ($db->next_record()) {
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$str.=" <id>".($db->Record["id"])."</id>\n";
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$str.=" <csr>".($db->Record["sslcsr"])."</key>\n";
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$str.=" <key>".($db->Record["sslkey"])."<key>\n";
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$str.=" <crt>".($db->Record["sslcrt"])."</crt>\n";
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$str.=" <chain>".($db->Record["sslchain"])."<chain>\n";
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}
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$str.=" </ssl>\n";
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return $str;
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}
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/* ----------------------------------------------------------------- */
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/** Returns the list of alternate names of an X.509 SSL Certificate
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* from the attribute list.
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* @param $str string the $crtdata["extensions"]["subjectAltName"] from openssl
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* @return array an array of FQDNs
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*/
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function parseAltNames($str) {
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if (preg_match_all("#DNS:([^,]*),#",$str,$mat, PREG_PATTERN_ORDER)) {
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return implode("\n",$mat[1]);
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} else {
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return "";
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}
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}
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/* ----------------------------------------------------------------- */
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/** Add (immediately) a global alias to the HTTP
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* certif_alias table and add it to apache configuration
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* by launching a incron action.
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* name is the name of the alias, starting by /
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* value is the value of the filename stored at this location
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* If an alias with the same name already exists, return false.
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* if the alias has been properly defined, return true.
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* @return boolean
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*/
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function alias_add($name,$value) {
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global $err,$cuid,$db;
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$db->query("SELECT name FROM certif_alias WHERE name='".addslashes($name)."';");
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if ($db->next_record()) {
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$err->raise("ssl",_("Alias already exists"));
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return false;
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}
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$db->query("INSERT INTO certif_alias SET name='".addslashes($name)."', value='".addslashes($value)."', uid=".intval($cuid).";");
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touch(self::SSL_INCRON_FILE);
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return true;
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}
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/* ----------------------------------------------------------------- */
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/** Removes (immediately) a global alias to the HTTP
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* certif_alias table and add it to apache configuration
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* by launching a incron action.
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* name is the name of the alias, starting by /
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* @return boolean
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*/
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function alias_del($name) {
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global $err,$cuid,$db;
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$db->query("SELECT name FROM certif_alias WHERE name='".addslashes($name)."' AND uid=".intval($cuid).";");
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if (!$db->next_record()) {
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$err->raise("ssl",_("Alias not found"));
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return false;
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}
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$db->query("DELETE FROM certif_alias WHERE name='".addslashes($name)."' AND uid=".intval($cuid).";");
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touch(self::SSL_INCRON_FILE);
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return true;
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}
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/* ----------------------------------------------------------------- */
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/** Check that a crt is a proper certificate
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* @param $crt string an SSL Certificate
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* @param $chain string is a list of certificates
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* @param $key string is a rsa key associated with certificate
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* @param $certid if no key is specified, use it from this certificate ID in the table
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* @return array the crt, chain, key, crtdata(array) after a proper reformatting
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* or false if an error occurred (in that case $this->error is filled)
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*/
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function check_cert($crt,$chain,$key="",$certid=null) {
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global $err,$cuid,$db;
|
|
// Check that the key crt and chain are really SSL certificates and keys
|
|
$crt=trim(str_replace("\r\n","\n",$crt))."\n";
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|
$key=trim(str_replace("\r\n","\n",$key))."\n";
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|
$chain=trim(str_replace("\r\n","\n",$chain))."\n";
|
|
|
|
$this->error="";
|
|
if (trim($key)=="" && !is_null($certid)) {
|
|
// find it in the DB :
|
|
$db->query("SELECT sslkey FROM certificates WHERE id=".intval($certid).";");
|
|
if (!$db->next_record()) {
|
|
$this->error.=_("Can't find the private key in the certificate table, please check your form.");
|
|
return false;
|
|
}
|
|
$key=$db->f("sslkey");
|
|
$key=trim(str_replace("\r\n","\n",$key))."\n";
|
|
}
|
|
|
|
if (substr($crt,0,28)!="-----BEGIN CERTIFICATE-----\n" ||
|
|
substr($crt,-26,26)!="-----END CERTIFICATE-----\n") {
|
|
$this->error.=_("The certificate must begin by BEGIN CERTIFICATE and end by END CERTIFICATE lines. Please check you pasted it in PEM form.")."\n";
|
|
}
|
|
if ($chain &&
|
|
(substr($chain,0,28)!="-----BEGIN CERTIFICATE-----\n" ||
|
|
substr($chain,-26,26)!="-----END CERTIFICATE-----\n")) {
|
|
$this->error.=_("The chained certificate must begin by BEGIN CERTIFICATE and end by END CERTIFICATE lines. Please check you pasted it in PEM form.")."\n";
|
|
}
|
|
if (substr($key,0,32)!="-----BEGIN RSA PRIVATE KEY-----\n" ||
|
|
substr($key,-30,30)!="-----END RSA PRIVATE KEY-----\n") {
|
|
$this->error.=_("The private key must begin by BEGIN RSA PRIVATE KEY and end by END RSA PRIVATE KEY lines. Please check you pasted it in PEM form.")."\n";
|
|
}
|
|
if ($this->error) {
|
|
return false;
|
|
}
|
|
|
|
// We split the chained certificates in individuals certificates :
|
|
$chains=array();
|
|
$status=0; $new="";
|
|
$lines=explode("\n",$chain);
|
|
foreach($lines as $line) {
|
|
if ($line=="-----BEGIN CERTIFICATE-----" && $status==0) {
|
|
$status=1;
|
|
$new=$line."\n";
|
|
continue;
|
|
}
|
|
if ($line=="-----END CERTIFICATE-----" && $status==1) {
|
|
$status=0;
|
|
$new.=$line."\n";
|
|
$chains[]=$new;
|
|
$new="";
|
|
continue;
|
|
}
|
|
if ($status==1) {
|
|
$new.=$line."\n";
|
|
}
|
|
}
|
|
// here chains contains all the ssl certificates in the chained certs.
|
|
// Now we check those using Openssl functions (real check :) )
|
|
$rchains=array(); $i=0;
|
|
foreach($chains as $tmpcert) {
|
|
$i++;
|
|
$tmpr=openssl_x509_read($tmpcert);
|
|
if ($tmpr===false) {
|
|
$this->error.=sprintf(_("The %d-th certificate in the chain is invalid"),$i)."\n";
|
|
} else {
|
|
$rchains[]=$tmpr;
|
|
}
|
|
}
|
|
$validstart=0; $validend=0;
|
|
$rcrt=openssl_x509_read($crt);
|
|
$crtdata = openssl_x509_parse($crt);
|
|
if ($rcrt===false || $crtdata===false) {
|
|
$this->error.=_("The certificate is invalid.")."\n";
|
|
}
|
|
|
|
$rkey=openssl_pkey_get_private($key);
|
|
if ($rkey===false) {
|
|
$this->error.=_("The private key is invalid.")."\n";
|
|
}
|
|
if (!$this->error) {
|
|
// check that the private key and the certificates are matching :
|
|
if (!openssl_x509_check_private_key($rcrt,$rkey)) {
|
|
$this->error.=_("The private key is not the one signed inside the certificate.")."\n";
|
|
}
|
|
}
|
|
if (!$this->error) {
|
|
// Everything is fine, let's recreate crt, chain, key from our internal OpenSSL structures:
|
|
if (!openssl_x509_export($rcrt,$crt)) {
|
|
$this->error.=_("Can't export your certificate as a string, please check its syntax.")."\n";
|
|
}
|
|
$chain="";
|
|
foreach($rchains as $r) {
|
|
if (!openssl_x509_export($r,$tmp)) {
|
|
$this->error.=_("Can't export one of your chained certificates as a string, please check its syntax.")."\n";
|
|
} else {
|
|
$chain.=$tmp;
|
|
}
|
|
}
|
|
if (!openssl_pkey_export($rkey,$key)) {
|
|
$this->error.=_("Can't export your private key as a string, please check its syntax.")."\n";
|
|
}
|
|
}
|
|
return array($crt,$chain,$key,$crtdata);
|
|
} // check_cert
|
|
|
|
|
|
} /* Class m_ssl */
|
|
|