mirror of
https://github.com/nuxsmin/sysPass.git
synced 2026-03-03 15:14:08 +01:00
590 lines
16 KiB
PHP
590 lines
16 KiB
PHP
<?php
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/**
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* sysPass
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*
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* @author nuxsmin
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* @link http://syspass.org
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* @copyright 2012-2015 Rubén Domínguez nuxsmin@syspass.org
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*
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* This file is part of sysPass.
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*
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* sysPass is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* sysPass 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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*
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* You should have received a copy of the GNU General Public License
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* along with sysPass. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace SP;
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defined('APP_ROOT') || die(_('No es posible acceder directamente a este archivo'));
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/**
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* Clase con utilizades para la aplicación
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*/
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class Util
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{
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/**
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* Comprobar si la función de números aleatorios está disponible.
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*
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* @return bool
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*/
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public static function secureRNG_available()
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{
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// Check openssl_random_pseudo_bytes
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if (function_exists('openssl_random_pseudo_bytes')) {
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openssl_random_pseudo_bytes(1, $strong);
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if ($strong == true) {
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return true;
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}
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}
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// Check /dev/urandom
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$fp = @file_get_contents('/dev/urandom', false, null, 0, 1);
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if ($fp !== false) {
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return true;
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}
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return false;
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}
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/**
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* Comprobar si sysPass se ejecuta en W$indows.
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*
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* @return bool
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*/
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public static function runningOnWindows()
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{
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return (substr(PHP_OS, 0, 3) === "WIN");
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}
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/**
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* Generar una cadena aleatoria usuando criptografía.
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*
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* @param int $length opcional, con la longitud de la cadena
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* @return string
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*/
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public static function generate_random_bytes($length = 30)
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{
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// Try to use openssl_random_pseudo_bytes
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if (function_exists('openssl_random_pseudo_bytes')) {
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$pseudo_byte = bin2hex(openssl_random_pseudo_bytes($length, $strong));
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if ($strong == true) {
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return substr($pseudo_byte, 0, $length); // Truncate it to match the length
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}
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}
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// Try to use /dev/urandom
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$fp = @file_get_contents('/dev/urandom', false, null, 0, $length);
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if ($fp !== false) {
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$string = substr(bin2hex($fp), 0, $length);
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return $string;
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}
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// Fallback to mt_rand()
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$characters = '0123456789';
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$characters .= 'abcdefghijklmnopqrstuvwxyz';
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$charactersLength = strlen($characters) - 1;
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$pseudo_byte = "";
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// Select some random characters
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for ($i = 0; $i < $length; $i++) {
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$pseudo_byte .= $characters[mt_rand(0, $charactersLength)];
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}
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return $pseudo_byte;
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}
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/**
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* Comprobar la versión de PHP.
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*
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* @return bool
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*/
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public static function checkPhpVersion()
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{
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$error = array();
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$needsVersion = '5.3.0';
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if (version_compare(PHP_VERSION, $needsVersion, '>=')) {
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$error[] = array(
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'type' => SPException::SP_CRITICAL,
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'description' => _('Versión de PHP requerida >= ') . $needsVersion,
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'hint' => _('Actualice la versión de PHP para que la aplicación funcione correctamente')
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);
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}
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return $error;
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}
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/**
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* Comprobar los módulos necesarios.
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*
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* @return array con los módulos no disponibles
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*/
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public static function checkModules()
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{
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$modsNeed = array(
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'ldap',
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'mcrypt',
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'curl',
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'SimpleXML',
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'Phar',
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'json',
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'xml',
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'PDO',
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'zlib',
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'gettext',
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'openssl',
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'pcre',
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'session',
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'gd'
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);
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$error = array();
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foreach ($modsNeed as $module) {
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if (!extension_loaded($module)) {
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$error[] = array(
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'type' => SPException::SP_WARNING,
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'description' => sprintf('%s (%s)', _('Módulo no disponible'), $module),
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'hint' => _('Sin este módulo la aplicación puede no funcionar correctamente.')
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);
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}
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}
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return $error;
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}
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/**
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* Devuelve el valor de la variable enviada por un formulario.
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*
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* @param string $s con el nombre de la variable
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* @param string $d con el valor por defecto
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* @return string con el valor de la variable
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*/
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public static function init_var($s, $d = "")
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{
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$r = $d;
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if (isset($_REQUEST[$s]) && !empty($_REQUEST[$s])) {
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$r = Html::sanitize($_REQUEST[$s]);
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}
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return $r;
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}
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/**
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* Comprobar si el módulo de LDAP está instalado.
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*
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* @return bool
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*/
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public static function ldapIsAvailable()
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{
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return extension_loaded('ldap');
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}
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/**
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* Devuelve la versión de sysPass.
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*
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* @return string con la versión
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*/
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public static function getVersionString()
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{
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return '1.2';
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}
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/**
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* Comprobar si hay actualizaciones de sysPass disponibles desde internet (github.com)
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* Esta función hace una petición a GitHub y parsea el JSON devuelto para verificar
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* si la aplicación está actualizada
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*
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* @return array|bool
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*/
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public static function checkUpdates()
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{
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if (!Config::getValue('checkupdates')) {
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return false;
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}
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$data = self::getDataFromUrl(self::getAppInfo('appupdates'));
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if ($data) {
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$updateInfo = json_decode($data);
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// $updateInfo[0]->tag_name
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// $updateInfo[0]->name
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// $updateInfo[0]->body
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// $updateInfo[0]->tarball_url
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// $updateInfo[0]->zipball_url
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// $updateInfo[0]->published_at
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// $updateInfo[0]->html_url
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$version = $updateInfo->tag_name;
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$url = $updateInfo->html_url;
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$title = $updateInfo->name;
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$description = $updateInfo->body;
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$date = $updateInfo->published_at;
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preg_match('/v?(\d+)\.(\d+)\.(\d+)\.(\d+)(\-[a-z0-9.]+)?$/', $version, $realVer);
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if (is_array($realVer) && Init::isLoggedIn()) {
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$appVersion = implode('', self::getVersion(true));
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$pubVersion = $realVer[1] . $realVer[2] . $realVer[3] . $realVer[4];
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if ($pubVersion > $appVersion) {
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return array(
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'version' => $version,
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'url' => $url,
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'title' => $title,
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'description' => $description,
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'date' => $date);
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} else {
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return true;
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}
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} else {
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return false;
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}
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}
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return false;
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}
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/**
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* Comprobar si hay notificaciones de sysPass disponibles desde internet (github.com)
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* Esta función hace una petición a GitHub y parsea el JSON devuelto
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*
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* @return array|bool
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*/
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public static function checkNotices()
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{
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if (!Config::getValue('checknotices')) {
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return false;
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}
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$data = self::getDataFromUrl(self::getAppInfo('appnotices'));
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if ($data) {
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$noticesData = json_decode($data);
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$notices = array();
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// $noticesData[0]->title
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// $noticesData[0]->body
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// $noticesData[0]->created_at
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foreach ($noticesData as $notice) {
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$notices[] = array(
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$notice->title,
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// $notice->body,
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$notice->created_at
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);
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}
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return $notices;
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}
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return false;
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}
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/**
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* Comprobar si el módulo CURL está instalado.
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*
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* @return bool
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*/
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public static function curlIsAvailable()
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{
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return (function_exists('curl_init'));
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}
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/**
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* Devuelve la versión de sysPass.
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*
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* @param bool $retBuild devolver el número de compilación
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* @return array con el número de versión
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*/
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public static function getVersion($retBuild = false)
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{
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$version = array(1, 2, 0, '16');
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if (!$retBuild) {
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array_pop($version);
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}
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return $version;
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}
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/**
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* Realiza el proceso de logout.
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*/
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public static function logout()
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{
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exit('<script>sysPassUtil.Common.doLogout();</script>');
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}
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/**
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* Obtener el tamaño máximo de subida de PHP.
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*/
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public static function getMaxUpload()
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{
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$max_upload = (int)(ini_get('upload_max_filesize'));
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$max_post = (int)(ini_get('post_max_size'));
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$memory_limit = (int)(ini_get('memory_limit'));
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$upload_mb = min($max_upload, $max_post, $memory_limit);
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Log::writeNewLog(__FUNCTION__, "Max. PHP upload: " . $upload_mb . "MB");
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}
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/**
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* Comprobar si está en modo DEMO.
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*
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* @return bool
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*/
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public static function demoIsEnabled()
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{
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return self::boolval(Config::getValue('demo_enabled', false));
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}
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/**
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* Checks a variable to see if it should be considered a boolean true or false.
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* Also takes into account some text-based representations of true of false,
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* such as 'false','N','yes','on','off', etc.
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*
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* @author Samuel Levy <sam+nospam@samuellevy.com>
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* @param mixed $in The variable to check
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* @param bool $strict If set to false, consider everything that is not false to
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* be true.
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* @return bool The boolean equivalent or null (if strict, and no exact equivalent)
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*/
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public static function boolval($in, $strict = false)
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{
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$in = (is_string($in) ? strtolower($in) : $in);
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// if not strict, we only have to check if something is false
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if (in_array($in, array('false', 'no', 'n', '0', 'off', false, 0), true) || !$in) {
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return false;
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} else if ($strict) {
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// if strict, check the equivalent true values
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if (in_array($in, array('true', 'yes', 'y', '1', 'on', true, 1), true)) {
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return true;
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}
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} else {
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// not strict? let the regular php bool check figure it out (will
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// largely default to true)
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return ($in ? true : false);
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}
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}
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/**
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* Comprobar si está habilitada la gestión de archivos.
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*
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* @return bool
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*/
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public static function fileIsEnabled()
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{
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return self::boolval(Config::getValue('files_enabled', false));
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}
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/**
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* Comprobar si están habilitadas las notificaciones por correo.
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*
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* @return bool
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*/
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public static function mailIsEnabled()
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{
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return self::boolval(Config::getValue('mail_enabled', false));
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}
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/**
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* Comprobar si está habilitada la Wiki.
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*
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* @return bool
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*/
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public static function wikiIsEnabled()
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{
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return self::boolval(Config::getValue('wiki_enabled', false));
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}
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/**
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* Comprobar si están habilitadas las peticiones por correo.
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*
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* @return bool
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*/
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public static function mailrequestIsEnabled()
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{
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return self::boolval(Config::getValue('mail_requestsenabled', false));
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}
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/**
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* Comprobar si está habilitado LDAP.
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*
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* @return bool
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*/
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public static function ldapIsEnabled()
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{
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return self::boolval(Config::getValue('ldap_enabled', false));
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}
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/**
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* Comprobar si está habilitado el log de eventos.
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*
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* @return bool
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*/
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public static function logIsEnabled()
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{
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return self::boolval(Config::getValue('log_enabled', false));
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}
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/**
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* Comprobar si está habilitado el formato de tarjeta en los resultados.
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*
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* @return bool
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*/
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public static function resultsCardsIsEnabled()
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{
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return self::boolval(Config::getValue('resultsascards', false));
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}
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/**
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* Comprobar si está habilitado usar imagen para claves de cuentas
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*
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* @return bool
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*/
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public static function accountPassToImageIsEnabled()
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{
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return self::boolval(Config::getValue('account_passtoimage', false));
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}
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/**
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* Comprobar si está habilitado forzar la conexión por HTTPS
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*
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* @return bool
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*/
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public static function forceHttpsIsEnabled()
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{
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return self::boolval(Config::getValue('https_enabled', false));
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}
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/**
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* Comprobar si se utiliza HTTPS
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*
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* @return bool
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*/
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public static function httpsEnabled() {
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return
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(!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off')
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|| $_SERVER['SERVER_PORT'] == 443
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|| Request::getRequestHeaders('X-Forwarded-Proto') === 'https';
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}
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/**
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* Establecer variable de sesión para recargar la aplicación.
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*/
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public static function reload()
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{
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if (Session::getReload() === false) {
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Session::setReload(true);
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}
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}
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/**
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* Comprobar si se necesita recargar la aplicación.
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*/
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public static function checkReload()
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{
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if (Session::getReload() === true) {
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Session::setReload(false);
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exit("<script>location.reload();</script>");
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}
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}
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/**
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* Recorrer un array y escapar los carácteres no válidos en Javascript.
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*
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* @param $array
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* @return array
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*/
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public static function arrayJSEscape(&$array)
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{
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array_walk($array, function (&$value, $index) {
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$value = str_replace(array("'", '"'), "\\'", $value);
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});
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return $array;
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}
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/**
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* Devuelve información sobre la aplicación.
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*
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* @param string $index con la key a devolver
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* @return array con las propiedades de la aplicación
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*/
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public static function getAppInfo($index = null)
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{
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$appinfo = array(
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'appname' => 'sysPass',
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'appdesc' => 'Systems Password Manager',
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'appwebsite' => 'http://www.syspass.org',
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'appblog' => 'http://www.cygnux.org',
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'appdoc' => 'http://wiki.syspass.org',
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'appupdates' => 'https://api.github.com/repos/nuxsmin/sysPass/releases/latest',
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'appnotices' => 'https://api.github.com/repos/nuxsmin/sysPass/issues?milestone=none&state=open&labels=Notices',
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'apphelp' => 'https://github.com/nuxsmin/sysPass/issues',
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'appchangelog' => 'https://github.com/nuxsmin/sysPass/blob/master/CHANGELOG');
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if (!is_null($index) && isset($appinfo[$index])) {
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return $appinfo[$index];
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}
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return $appinfo;
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}
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/**
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* Obtener datos desde una URL usando CURL
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*
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* @param $url string La URL
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* @return bool|string
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*/
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public static function getDataFromUrl($url)
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{
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if (!self::curlIsAvailable()) {
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return false;
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}
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$ch = curl_init($url);
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if (Config::getValue('proxy_enabled')){
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curl_setopt($ch, CURLOPT_PROXY, Config::getValue('proxy_server'));
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curl_setopt($ch, CURLOPT_PROXYPORT, Config::getValue('proxy_port'));
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curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
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$proxyUser = Config::getValue('proxy_user');
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if ($proxyUser) {
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$proxyAuth = $proxyUser . ':' . Config::getValue('proxy_pass');
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curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyAuth);
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}
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}
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($ch, CURLOPT_HEADER, 0);
|
|
curl_setopt($ch, CURLOPT_USERAGENT, "sysPass-App");
|
|
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
|
|
curl_setopt($ch, CURLOPT_TIMEOUT, 60);
|
|
|
|
$data = curl_exec($ch);
|
|
|
|
if ($data === false) {
|
|
Log::writeNewLog(__FUNCTION__, curl_error($ch));
|
|
|
|
return false;
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
} |