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sql.php
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sql.php
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<?php
/**
* SQL Password Driver
*
* Driver for passwords stored in SQL database
*
* @version 2.0
* @author Aleksander Machniak <alec@alec.pl>
*
* Copyright (C) The Roundcube Dev Team
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
class rcube_sql_password
{
function save($curpass, $passwd)
{
$rcmail = rcmail::get_instance();
if (!($sql = $rcmail->config->get('password_query'))) {
$sql = 'SELECT update_passwd(%c, %u)';
}
if ($dsn = $rcmail->config->get('password_db_dsn')) {
$db = rcube_db::factory(self::parse_dsn($dsn), '', false);
$db->set_debug((bool)$rcmail->config->get('sql_debug'));
}
else {
$db = $rcmail->get_dbh();
}
if ($db->is_error()) {
return PASSWORD_ERROR;
}
// new password - default hash method
if (strpos($sql, '%P') !== false) {
$password = password::hash_password($passwd);
if ($password === false) {
return PASSWORD_CRYPT_ERROR;
}
$sql = str_replace('%P', $db->quote($password), $sql);
}
// old password - default hash method
if (strpos($sql, '%O') !== false) {
$password = password::hash_password($curpass);
if ($password === false) {
return PASSWORD_CRYPT_ERROR;
}
$sql = str_replace('%O', $db->quote($password), $sql);
}
// crypted password (deprecated, use %P)
if (strpos($sql, '%c') !== false) {
$password = password::hash_password($passwd, 'crypt', false);
if ($password === false) {
return PASSWORD_CRYPT_ERROR;
}
$sql = str_replace('%c', $db->quote($password), $sql);
}
// dovecotpw (deprecated, use %P)
if (strpos($sql, '%D') !== false) {
$password = password::hash_password($passwd, 'dovecot', false);
if ($password === false) {
return PASSWORD_CRYPT_ERROR;
}
$sql = str_replace('%D', $db->quote($password), $sql);
}
// hashed passwords (deprecated, use %P)
if (strpos($sql, '%n') !== false) {
$password = password::hash_password($passwd, 'hash', false);
if ($password === false) {
return PASSWORD_CRYPT_ERROR;
}
$sql = str_replace('%n', $db->quote($password, 'text'), $sql);
}
// hashed passwords (deprecated, use %P)
if (strpos($sql, '%q') !== false) {
$password = password::hash_password($curpass, 'hash', false);
if ($password === false) {
return PASSWORD_CRYPT_ERROR;
}
$sql = str_replace('%q', $db->quote($password, 'text'), $sql);
}
// Handle clear text passwords securely (#1487034)
$sql_vars = array();
if (preg_match_all('/%[p|o]/', $sql, $m)) {
foreach ($m[0] as $var) {
if ($var == '%p') {
$sql = preg_replace('/%p/', '?', $sql, 1);
$sql_vars[] = (string) $passwd;
}
else { // %o
$sql = preg_replace('/%o/', '?', $sql, 1);
$sql_vars[] = (string) $curpass;
}
}
}
$local_part = $rcmail->user->get_username('local');
$domain_part = $rcmail->user->get_username('domain');
$username = $_SESSION['username'];
$host = $_SESSION['imap_host'];
// convert domains to/from punnycode
if ($rcmail->config->get('password_idn_ascii')) {
$domain_part = rcube_utils::idn_to_ascii($domain_part);
$username = rcube_utils::idn_to_ascii($username);
$host = rcube_utils::idn_to_ascii($host);
}
else {
$domain_part = rcube_utils::idn_to_utf8($domain_part);
$username = rcube_utils::idn_to_utf8($username);
$host = rcube_utils::idn_to_utf8($host);
}
// at least we should always have the local part
$sql = str_replace('%l', $db->quote($local_part, 'text'), $sql);
$sql = str_replace('%d', $db->quote($domain_part, 'text'), $sql);
$sql = str_replace('%u', $db->quote($username, 'text'), $sql);
$sql = str_replace('%h', $db->quote($host, 'text'), $sql);
$res = $db->query($sql, $sql_vars);
if (!$db->is_error()) {
if (strtolower(substr(trim($sql),0,6)) == 'select') {
if ($db->fetch_array($res)) {
return PASSWORD_SUCCESS;
}
}
else {
// This is the good case: 1 row updated
if ($db->affected_rows($res) == 1)
return PASSWORD_SUCCESS;
// @TODO: Some queries don't affect any rows
// Should we assume a success if there was no error?
}
}
return PASSWORD_ERROR;
}
/**
* Parse DSN string and replace host variables
*/
protected static function parse_dsn($dsn)
{
if (strpos($dsn, '%')) {
// parse DSN and replace variables in hostname
$parsed = rcube_db::parse_dsn($dsn);
$host = rcube_utils::parse_host($parsed['hostspec']);
// build back the DSN string
if ($host != $parsed['hostspec']) {
$dsn = str_replace('@' . $parsed['hostspec'], '@' . $host, $dsn);
}
}
return $dsn;
}
}

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