MRBS 1.12.2 等保2.0二级整改完整提交

包含：登录失败锁定、90天密码有效期、30分钟会话超时、
强制改密、登录审计日志、屏幕水印、企业背景图、
备案信息固定底部、favicon、JS空集合保护、
会话过期体验优化（403 JSON）、display_errors 关闭、
固定 key 根治 Integrity check failed 等全部改动

注意：config.inc.php/.htaccess/.user.ini 含敏感信息，
通过 .gitignore 排除，勿推送到公开仓库。

lib/Monolog/Handler/SamplingHandler.php

@@ -0,0 +1,132 @@
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\FormatterInterface;
+
+/**
+ * Sampling handler
+ *
+ * A sampled event stream can be useful for logging high frequency events in
+ * a production environment where you only need an idea of what is happening
+ * and are not concerned with capturing every occurrence. Since the decision to
+ * handle or not handle a particular event is determined randomly, the
+ * resulting sampled log is not guaranteed to contain 1/N of the events that
+ * occurred in the application, but based on the Law of large numbers, it will
+ * tend to be close to this ratio with a large number of attempts.
+ *
+ * @author Bryan Davis <bd808@wikimedia.org>
+ * @author Kunal Mehta <legoktm@gmail.com>
+ *
+ * @phpstan-import-type Record from \Monolog\Logger
+ * @phpstan-import-type Level from \Monolog\Logger
+ */
+class SamplingHandler extends AbstractHandler implements ProcessableHandlerInterface, FormattableHandlerInterface
+{
+    use ProcessableHandlerTrait;
+
+    /**
+     * @var HandlerInterface|callable
+     * @phpstan-var HandlerInterface|callable(Record|array{level: Level}|null, HandlerInterface): HandlerInterface
+     */
+    protected $handler;
+
+    /**
+     * @var int $factor
+     */
+    protected $factor;
+
+    /**
+     * @psalm-param HandlerInterface|callable(Record|array{level: Level}|null, HandlerInterface): HandlerInterface $handler
+     *
+     * @param callable|HandlerInterface $handler Handler or factory callable($record|null, $samplingHandler).
+     * @param int                       $factor  Sample factor (e.g. 10 means every ~10th record is sampled)
+     */
+    public function __construct($handler, int $factor)
+    {
+        parent::__construct();
+        $this->handler = $handler;
+        $this->factor = $factor;
+
+        if (!$this->handler instanceof HandlerInterface && !is_callable($this->handler)) {
+            throw new \RuntimeException("The given handler (".json_encode($this->handler).") is not a callable nor a Monolog\Handler\HandlerInterface object");
+        }
+    }
+
+    public function isHandling(array $record): bool
+    {
+        return $this->getHandler($record)->isHandling($record);
+    }
+
+    public function handle(array $record): bool
+    {
+        if ($this->isHandling($record) && mt_rand(1, $this->factor) === 1) {
+            if ($this->processors) {
+                /** @var Record $record */
+                $record = $this->processRecord($record);
+            }
+
+            $this->getHandler($record)->handle($record);
+        }
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * Return the nested handler
+     *
+     * If the handler was provided as a factory callable, this will trigger the handler's instantiation.
+     *
+     * @phpstan-param Record|array{level: Level}|null $record
+     *
+     * @return HandlerInterface
+     */
+    public function getHandler(?array $record = null)
+    {
+        if (!$this->handler instanceof HandlerInterface) {
+            $this->handler = ($this->handler)($record, $this);
+            if (!$this->handler instanceof HandlerInterface) {
+                throw new \RuntimeException("The factory callable should return a HandlerInterface");
+            }
+        }
+
+        return $this->handler;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function setFormatter(FormatterInterface $formatter): HandlerInterface
+    {
+        $handler = $this->getHandler();
+        if ($handler instanceof FormattableHandlerInterface) {
+            $handler->setFormatter($formatter);
+
+            return $this;
+        }
+
+        throw new \UnexpectedValueException('The nested handler of type '.get_class($handler).' does not support formatters.');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getFormatter(): FormatterInterface
+    {
+        $handler = $this->getHandler();
+        if ($handler instanceof FormattableHandlerInterface) {
+            return $handler->getFormatter();
+        }
+
+        throw new \UnexpectedValueException('The nested handler of type '.get_class($handler).' does not support formatters.');
+    }
+}