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、登录页JS修复等全部改动

web/lib/Webklex/PHPIMAP/Support/Masks/AttachmentMask.php

@@ -0,0 +1,45 @@
+<?php
+/*
+* File: AttachmentMask.php
+* Category: Mask
+* Author: M.Goldenbaum
+* Created: 14.03.19 20:49
+* Updated: -
+*
+* Description:
+*  -
+*/
+
+namespace Webklex\PHPIMAP\Support\Masks;
+
+use Webklex\PHPIMAP\Attachment;
+
+/**
+ * Class AttachmentMask
+ *
+ * @package Webklex\PHPIMAP\Support\Masks
+ * @mixin Attachment
+ */
+class AttachmentMask extends Mask {
+
+    /** @var Attachment $parent */
+    protected mixed $parent;
+
+    /**
+     * Get the attachment content base64 encoded
+     *
+     * @return string|null
+     */
+    public function getContentBase64Encoded(): ?string {
+        return base64_encode($this->parent->content);
+    }
+
+    /**
+     * Get a base64 image src string
+     *
+     * @return string|null
+     */
+    public function getImageSrc(): ?string {
+        return 'data:'.$this->parent->content_type.';base64,'.$this->getContentBase64Encoded();
+    }
+}