修改网站 密码 和 cookie 的散列计算方式

lib/class.P.php

@@ -34,15 +34,53 @@ public function __construct($salt = '')
     }
 
     /**
-     * 对数据（通常是密码）进行不可逆加密
+     * [弃用] 对数据（通常是密码）进行不可逆加密
      * @param string $pwd 密码
      * @return string 加密的密码
      */
-    public function pwd($pwd)
+    public function legacy_pwd($pwd)
     {
         return eval('return ' . option::get('pwdmode') . ';');
     }
 
+    /**
+     * 对数据（通常是密码）进行不可逆加密
+     * @param string $pwd 密码
+     * @param boolean $with_legacy 是否包含旧密码(不支持 `password_hash()` 时无效)
+     * @return string|object 新密码(和带旧版密码的 array)
+     */
+    public function pwd($pwd, $with_legacy = false)
+    {
+        if (function_exists("password_hash")) {
+            $newHash = password_hash($pwd, PASSWORD_BCRYPT, ["cost" => 12]);
+            if ($with_legacy) {
+                $legacy_hash = $this->legacy_pwd($pwd);
+                return [
+                    "new" => $newHash,
+                    "legacy" => $legacy_hash,
+                ];
+            } else {
+                return $newHash;
+            }
+        } else {
+            return $this->legacy_pwd($pwd);
+        }
+    }
+
+    /**
+     * 校验密码是否合法
+     * @param string $pwd 密码
+     * @return boolean 密码是否合法
+     */
+    public function pwd_verify($pwd, $hash)
+    {
+        if (function_exists("password_verify") && password_verify($pwd, $hash)) {
+            return true;
+        }
+        // legacy
+        return $hash === $this->legacy_pwd($pwd);
+    }
+
     /**
      * 对数据进行可逆加密
      * @param string $str 原文

lib/globals.php

@@ -13,7 +13,7 @@
         $con_uid = isset($_COOKIE['uid']) ? sqladds($_COOKIE['con_uid']) : '';
         $con_pw  = isset($_COOKIE['pwd']) ? sqladds($_COOKIE['con_pwd']) : '';
         $con_p   = $m->once_fetch_array("SELECT * FROM  `" . DB_NAME . "`.`" . DB_PREFIX . "users` WHERE `id` = '{$con_uid}' LIMIT 1");
-        if (empty($con_p['id']) || $con_pw != substr(sha1(EncodePwd($con_p['pw'])), 4, 32)) {
+        if (empty($con_p['id']) || hash_hmac('sha256', $con_p['pw'], $con_p['id'] . $con_p['pw']) !== $con_pw) {
             setcookie("con_uid", '', time() - 3600);
             setcookie("con_pwd", '', time() - 3600);
         } else {
@@ -42,7 +42,7 @@
     }
     doAction('globals_1');
     $p = $m->fetch_array($osq);
-    if ($pw != substr(sha1(EncodePwd($p['pw'])), 4, 32)) {
+    if (hash_hmac('sha256', $p['pw'], $p['id'] . $p['pw']) !== $pw) {
         setcookie("uid", '', time() - 3600);
         setcookie("pwd", '', time() - 3600);
         ReDirect("index.php?mod=login&error_msg=" . urlencode('Cookies 所记录的账号信息不正确，请重新登录(#2)') . "");
@@ -135,7 +135,7 @@
             die;
     }
     $p = $m->fetch_array($osq);
-    if (EncodePwd($pw) != $p['pw']) {
+    if (!VerifyPwd($pw, $p['pw'])) {
         ReDirect("index.php?mod=login&error_msg=" . urlencode('密码错误'));
         die;
     } else {
@@ -147,11 +147,11 @@
                 $cktime = 999999;
             }
             setcookie("uid", $p['id'], time() + $cktime);
-            setcookie("pwd", substr(sha1(EncodePwd(EncodePwd($pw))), 4, 32), time() + $cktime);
+            setcookie("pwd", hash_hmac('sha256', $p['pw'], $p['id'] . $p['pw']), time() + $cktime);
             ReDirect('index.php');
         } else {
             setcookie("uid", $p['id']);
-            setcookie("pwd", substr(sha1(EncodePwd(EncodePwd($pw))), 4, 32));
+            setcookie("pwd", hash_hmac('sha256', $p['pw'], $p['id'] . $p['pw']));
             ReDirect('index.php');
         }
     }

lib/sfc.functions.php

@@ -24,13 +24,25 @@ function getIp()
 /**
  * 加密密码
  * @param string $pwd 密码
- * @return string 加密的密码
+ * @param boolean $with_legacy 是否包含旧密码
+ * @return string|object 新密码和旧版密码
  */
-function EncodePwd($pwd)
+function EncodePwd($pwd, $with_legacy = false)
 {
+    $p = new P();
+    return $p->pwd($pwd, $with_legacy);
+}
 
+/**
+ * 校验密码
+ * @param string $pwd 密码
+ * @param string $hash hash 值
+ * @return boolean 密码是否合法
+ */
+function VerifyPwd($pwd, $hash)
+{
     $p = new P();
-    return $p->pwd($pwd);
+    return $p->pwd_verify($pwd, $hash);
 }
 
 /**

setup/install.template.sql

@@ -145,7 +145,7 @@ DROP TABLE IF EXISTS `{VAR-PREFIX}users`;
 CREATE TABLE `{VAR-PREFIX}users` (
   `id` int(30) NOT NULL AUTO_INCREMENT,
   `name` varchar(20) NOT NULL,
-  `pw` char(32) NOT NULL,
+  `pw` TEXT NOT NULL,
   `email` varchar(40) NOT NULL,
   `role` varchar(10) NOT NULL DEFAULT 'user',
   `t` varchar(20) NOT NULL DEFAULT 'tieba',

setup/update5.00to5.01.php

@@ -0,0 +1,17 @@
+<?php
+
+define('SYSTEM_DEV', true);
+define('SYSTEM_NO_CHECK_VER', true);
+define('SYSTEM_NO_CHECK_LOGIN', true);
+define('SYSTEM_NO_PLUGIN', true);
+include __DIR__ . '/../init.php';
+global $m,$i;
+$cv = option::get('core_version');
+if (!empty($cv) && $cv >= '5.01') {
+    msg('您的云签到已升级到 V5.01 版本，请勿重复更新<br/><br/>请立即删除 /setup/update5.00to5.01.php');
+}
+$m->query("ALTER TABLE `" . DB_PREFIX . "users` CHANGE `pw` `pw` TEXT;", true);
+
+option::set('core_version', '5.01');
+unlink(__FILE__);
+msg('您的云签到已成功升级到 V5.01 版本，请立即删除 /setup/update5.00to5.01.php，谢谢', SYSTEM_URL);