{
  "url": "https://unifast.dev/vi/docs/packages/node/sanitize/",
  "locale": "vi",
  "title": "sanitize()",
  "description": "Tạo plugin sanitization để loại bỏ các thẻ HTML, thuộc tính và protocol URL nguy hiểm khỏi đầu ra đã biên dịch.",
  "section": "packages",
  "body": "```ts\n\n```\n\n## Chữ ký\n\n```ts\nfunction sanitize(options?: SanitizePluginOptions): UnifastPlugin\n```\n\n## Tham số\n\n### options?\n\nCấu hình sanitization\n\n| Thuộc tính | Kiểu | Mặc định | Mô tả |\n|----------|------|---------|-------------|\n| `enabled` | `boolean` | `true` | Bật hoặc tắt sanitization |\n| `schema` | `SanitizeSchema` | — | Schema sanitization tùy chỉnh |\n\n#### SanitizeSchema\n\n| Thuộc tính | Kiểu | Mô tả |\n|----------|------|-------------|\n| `allowedTags` | `string[]` | Các tên thẻ HTML được phép (tất cả các thẻ khác sẽ bị loại bỏ) |\n| `allowedAttributes` | `Record<string, string[]>` | Map từ tên thẻ đến các tên thuộc tính được phép |\n| `allowedProtocols` | `Record<string, string[]>` | Map từ tên thuộc tính đến các protocol URL được phép |\n\n## Cách dùng\n\n```ts\n\nconst result = compile(md, {\n  plugins: [\n    sanitize({\n      enabled: true,\n      schema: {\n        allowedTags: [\"h1\", \"h2\", \"h3\", \"p\", \"a\", \"strong\", \"em\", \"code\", \"pre\", \"img\", \"ul\", \"ol\", \"li\", \"blockquote\", \"table\", \"thead\", \"tbody\", \"tr\", \"th\", \"td\"],\n        allowedAttributes: {\n          a: [\"href\", \"title\", \"target\"],\n          img: [\"src\", \"alt\", \"width\", \"height\"],\n          code: [\"class\"],\n          pre: [\"class\"],\n        },\n        allowedProtocols: {\n          href: [\"https\", \"http\", \"mailto\"],\n          src: [\"https\", \"http\"],\n        },\n      },\n    }),\n  ],\n});\n```\n\n## Ví dụ\n\n### Loại bỏ HTML nguy hiểm\n\n```ts\n\nconst untrustedMd = `\n# Hello\n\n<script>alert(\"xss\")</script>\n\n<img src=\"x\" onerror=\"alert('xss')\">\n\n[Click me](javascript:alert('xss'))\n`;\n\nconst result = compile(untrustedMd, {\n  plugins: [sanitize()],\n});\n\nconsole.log(result.output);\n// <script> tags, onerror attributes, and javascript: URLs are removed\n```\n\n### Tùy chỉnh các thẻ được phép\n\n```ts\n\nconst result = compile(md, {\n  plugins: [\n    sanitize({\n      schema: {\n        allowedTags: [\"p\", \"a\", \"strong\", \"em\", \"code\", \"pre\"],\n      },\n    }),\n  ],\n});\n\nconsole.log(result.output);\n// Only the specified tags are kept; all others are stripped\n```\n\n### Giới hạn các protocol URL\n\n```ts\n\nconst result = compile(md, {\n  plugins: [\n    sanitize({\n      schema: {\n        allowedProtocols: {\n          href: [\"https\", \"mailto\"],\n          src: [\"https\"],\n        },\n      },\n    }),\n  ],\n});\n\nconsole.log(result.output);\n// Only https: and mailto: links are allowed\n```\n\n### Tắt sanitization\n\n```ts\n\nconst result = compile(md, {\n  plugins: [sanitize({ enabled: false })],\n});\n\nconsole.log(result.output);\n// No sanitization applied — use only with trusted input\n```",
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