fix(security): 补全 XSS sanitize + 修复 sender_id 身份伪造
安全审计修复: - 补全 6 个 DTO 的 sanitize 方法(diagnosis/consent/alert/medication_record/medication_reminder/follow_up_template) - 4 个 handler 添加 .sanitize() 调用(diagnosis/consent/alert_rule/medication_record) - 修复咨询消息 sender_id/sender_role 从客户端提交改为服务端从 JWT 提取 - 修复小程序 AI 报告 markdownToHtml XSS(添加 sanitizeHtml 过滤)
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@@ -12,8 +12,26 @@ const TYPE_LABELS: Record<string, string> = {
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report_summary_generation: '报告摘要',
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};
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/** 移除危险的 HTML 标签和事件属性,防止 XSS */
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function sanitizeHtml(html: string): string {
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return html
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// 移除 <script> 标签及其内容
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.replace(/<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi, '')
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// 移除 <iframe>, <object>, <embed>, <form>, <input>, <textarea>, <style> 标签
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.replace(/<\/?(?:iframe|object|embed|form|input|textarea|style)\b[^>]*>/gi, '')
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// 移除 <link> 和 <meta> 标签
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.replace(/<\/?(?:link|meta)\b[^>]*>/gi, '')
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// 移除所有 on* 事件属性 (onclick, onerror, onload 等)
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.replace(/\s+on\w+\s*=\s*(?:"[^"]*"|'[^']*'|[^\s>]+)/gi, '')
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// 移除 javascript: 和 data: 协议的 href/src 属性
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.replace(/(href|src)\s*=\s*(?:"javascript:[^"]*"|'javascript:[^']*')/gi, '')
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.replace(/(href|src)\s*=\s*(?:"data:[^"]*"|'data:[^']*')/gi, '');
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}
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function markdownToHtml(md: string): string {
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return md
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// 先转义 markdown 中可能存在的原始 HTML 标签
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const escaped = sanitizeHtml(md);
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return escaped
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.replace(/^### (.+)$/gm, '<h3>$1</h3>')
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.replace(/^## (.+)$/gm, '<h2>$1</h2>')
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.replace(/^# (.+)$/gm, '<h1>$1</h1>')
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