From 7f13d2613e24e3416a91e2839813322a6b9114eb Mon Sep 17 00:00:00 2001 From: SquidSpirit Date: Thu, 24 Jul 2025 12:29:14 +0800 Subject: [PATCH] BLOG-45 fix: XSS html issue --- frontend/package.json | 1 + frontend/pnpm-lock.yaml | 334 ++++++++++++++++++ .../lib/common/framework/ui/SafeHtml.svelte | 11 + .../post/framework/ui/PostContentPage.svelte | 5 +- frontend/src/routes/+error.svelte | 1 - 5 files changed, 349 insertions(+), 3 deletions(-) create mode 100644 frontend/src/lib/common/framework/ui/SafeHtml.svelte diff --git a/frontend/package.json b/frontend/package.json index 91031de..49a9151 100644 --- a/frontend/package.json +++ b/frontend/package.json @@ -28,6 +28,7 @@ "eslint-config-prettier": "^10.0.1", "eslint-plugin-svelte": "^3.0.0", "globals": "^16.0.0", + "isomorphic-dompurify": "^2.26.0", "markdown-it": "^14.1.0", "prettier": "^3.4.2", "prettier-plugin-svelte": "^3.3.3", diff --git a/frontend/pnpm-lock.yaml b/frontend/pnpm-lock.yaml index 9dce47f..0c4a7aa 100644 --- 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@@ snapshots: '@jridgewell/gen-mapping': 0.3.12 '@jridgewell/trace-mapping': 0.3.29 + '@asamuzakjp/css-color@3.2.0': + dependencies: + '@csstools/css-calc': 2.1.4(@csstools/css-parser-algorithms@3.0.5(@csstools/css-tokenizer@3.0.4))(@csstools/css-tokenizer@3.0.4) + '@csstools/css-color-parser': 3.0.10(@csstools/css-parser-algorithms@3.0.5(@csstools/css-tokenizer@3.0.4))(@csstools/css-tokenizer@3.0.4) + '@csstools/css-parser-algorithms': 3.0.5(@csstools/css-tokenizer@3.0.4) + '@csstools/css-tokenizer': 3.0.4 + lru-cache: 10.4.3 + + '@csstools/color-helpers@5.0.2': {} + + '@csstools/css-calc@2.1.4(@csstools/css-parser-algorithms@3.0.5(@csstools/css-tokenizer@3.0.4))(@csstools/css-tokenizer@3.0.4)': + dependencies: + '@csstools/css-parser-algorithms': 3.0.5(@csstools/css-tokenizer@3.0.4) + '@csstools/css-tokenizer': 3.0.4 + + '@csstools/css-color-parser@3.0.10(@csstools/css-parser-algorithms@3.0.5(@csstools/css-tokenizer@3.0.4))(@csstools/css-tokenizer@3.0.4)': + dependencies: + '@csstools/color-helpers': 5.0.2 + '@csstools/css-calc': 2.1.4(@csstools/css-parser-algorithms@3.0.5(@csstools/css-tokenizer@3.0.4))(@csstools/css-tokenizer@3.0.4) + '@csstools/css-parser-algorithms': 3.0.5(@csstools/css-tokenizer@3.0.4) + '@csstools/css-tokenizer': 3.0.4 + + '@csstools/css-parser-algorithms@3.0.5(@csstools/css-tokenizer@3.0.4)': + dependencies: + '@csstools/css-tokenizer': 3.0.4 + + '@csstools/css-tokenizer@3.0.4': {} + '@esbuild/aix-ppc64@0.25.8': optional: true @@ -1997,6 +2192,9 @@ snapshots: '@types/resolve@1.20.2': {} + '@types/trusted-types@2.0.7': + optional: true + '@typescript-eslint/eslint-plugin@8.38.0(@typescript-eslint/parser@8.38.0(eslint@9.31.0(jiti@2.4.2))(typescript@5.8.3))(eslint@9.31.0(jiti@2.4.2))(typescript@5.8.3)': dependencies: '@eslint-community/regexpp': 4.12.1 @@ -2096,6 +2294,8 @@ snapshots: acorn@8.15.0: {} + agent-base@7.1.4: {} + ajv@6.12.6: dependencies: fast-deep-equal: 3.1.3 @@ -2163,10 +2363,22 @@ snapshots: cssesc@3.0.0: {} + cssstyle@4.6.0: + dependencies: + '@asamuzakjp/css-color': 3.2.0 + rrweb-cssom: 0.8.0 + + data-urls@5.0.0: + dependencies: + whatwg-mimetype: 4.0.0 + whatwg-url: 14.2.0 + debug@4.4.1: dependencies: ms: 2.1.3 + decimal.js@10.6.0: {} + deep-is@0.1.4: {} deepmerge@4.3.1: {} @@ -2175,6 +2387,10 @@ snapshots: devalue@5.1.1: {} + dompurify@3.2.6: + optionalDependencies: + '@types/trusted-types': 2.0.7 + enhanced-resolve@5.18.2: dependencies: graceful-fs: 4.2.11 @@ -2182,6 +2398,8 @@ snapshots: entities@4.5.0: {} + entities@6.0.1: {} + esbuild@0.25.8: optionalDependencies: '@esbuild/aix-ppc64': 0.25.8 @@ -2381,6 +2599,28 @@ snapshots: dependencies: function-bind: 1.1.2 + html-encoding-sniffer@4.0.0: + dependencies: + whatwg-encoding: 3.1.1 + + http-proxy-agent@7.0.2: + dependencies: + agent-base: 7.1.4 + debug: 4.4.1 + transitivePeerDependencies: + - supports-color + + https-proxy-agent@7.0.6: + dependencies: + agent-base: 7.1.4 + debug: 4.4.1 + transitivePeerDependencies: + - supports-color + + iconv-lite@0.6.3: + dependencies: + safer-buffer: 2.1.2 + ignore@5.3.2: {} ignore@7.0.5: {} @@ -2406,6 +2646,8 @@ snapshots: is-number@7.0.0: {} + is-potential-custom-element-name@1.0.1: {} + is-reference@1.2.1: dependencies: '@types/estree': 1.0.8 @@ -2416,12 +2658,49 @@ snapshots: isexe@2.0.0: {} + isomorphic-dompurify@2.26.0: + dependencies: + dompurify: 3.2.6 + jsdom: 26.1.0 + transitivePeerDependencies: + - bufferutil + - canvas + - supports-color + - utf-8-validate + jiti@2.4.2: {} js-yaml@4.1.0: dependencies: argparse: 2.0.1 + jsdom@26.1.0: + dependencies: + cssstyle: 4.6.0 + data-urls: 5.0.0 + decimal.js: 10.6.0 + html-encoding-sniffer: 4.0.0 + http-proxy-agent: 7.0.2 + https-proxy-agent: 7.0.6 + is-potential-custom-element-name: 1.0.1 + nwsapi: 2.2.20 + parse5: 7.3.0 + rrweb-cssom: 0.8.0 + saxes: 6.0.0 + symbol-tree: 3.2.4 + tough-cookie: 5.1.2 + w3c-xmlserializer: 5.0.0 + webidl-conversions: 7.0.0 + whatwg-encoding: 3.1.1 + whatwg-mimetype: 4.0.0 + whatwg-url: 14.2.0 + ws: 8.18.3 + xml-name-validator: 5.0.0 + transitivePeerDependencies: + - bufferutil + - supports-color + - utf-8-validate + json-buffer@3.0.1: {} json-schema-traverse@0.4.1: {} @@ -2504,6 +2783,8 @@ snapshots: lodash.merge@4.6.2: {} + lru-cache@10.4.3: {} + magic-string@0.30.17: dependencies: '@jridgewell/sourcemap-codec': 1.5.4 @@ -2552,6 +2833,8 @@ snapshots: natural-compare@1.4.0: {} + nwsapi@2.2.20: {} + optionator@0.9.4: dependencies: deep-is: 0.1.4 @@ -2573,6 +2856,10 @@ snapshots: dependencies: callsites: 3.1.0 + parse5@7.3.0: + dependencies: + entities: 6.0.1 + path-exists@4.0.0: {} path-key@3.1.1: {} @@ -2675,6 +2962,8 @@ snapshots: '@rollup/rollup-win32-x64-msvc': 4.45.1 fsevents: 2.3.3 + rrweb-cssom@0.8.0: {} + run-parallel@1.2.0: dependencies: queue-microtask: 1.2.3 @@ -2683,6 +2972,12 @@ snapshots: dependencies: mri: 1.2.0 + safer-buffer@2.1.2: {} + + saxes@6.0.0: + dependencies: + xmlchars: 2.2.0 + semver@7.7.2: {} set-cookie-parser@2.7.1: {} @@ -2749,6 +3044,8 @@ snapshots: magic-string: 0.30.17 zimmerframe: 1.1.2 + symbol-tree@3.2.4: {} + tailwindcss@4.1.11: {} tapable@2.2.2: {} @@ -2767,12 +3064,26 @@ snapshots: fdir: 6.4.6(picomatch@4.0.3) picomatch: 4.0.3 + tldts-core@6.1.86: {} + + tldts@6.1.86: + dependencies: + tldts-core: 6.1.86 + to-regex-range@5.0.1: dependencies: is-number: 7.0.0 totalist@3.0.1: {} + tough-cookie@5.1.2: + dependencies: + tldts: 6.1.86 + + tr46@5.1.1: + dependencies: + punycode: 2.3.1 + ts-api-utils@2.1.0(typescript@5.8.3): dependencies: typescript: 5.8.3 @@ -2819,12 +3130,35 @@ snapshots: optionalDependencies: vite: 7.0.5(jiti@2.4.2)(lightningcss@1.30.1) + w3c-xmlserializer@5.0.0: + dependencies: + xml-name-validator: 5.0.0 + + webidl-conversions@7.0.0: {} + + whatwg-encoding@3.1.1: + dependencies: + iconv-lite: 0.6.3 + + whatwg-mimetype@4.0.0: {} + + whatwg-url@14.2.0: + dependencies: + tr46: 5.1.1 + webidl-conversions: 7.0.0 + which@2.0.2: dependencies: isexe: 2.0.0 word-wrap@1.2.5: {} + ws@8.18.3: {} + + xml-name-validator@5.0.0: {} + + xmlchars@2.2.0: {} + yallist@5.0.0: {} yaml@1.10.2: {} diff --git a/frontend/src/lib/common/framework/ui/SafeHtml.svelte b/frontend/src/lib/common/framework/ui/SafeHtml.svelte new file mode 100644 index 0000000..de885a5 --- /dev/null +++ b/frontend/src/lib/common/framework/ui/SafeHtml.svelte @@ -0,0 +1,11 @@ + + +{@html sanitizedHtml} diff --git a/frontend/src/lib/post/framework/ui/PostContentPage.svelte b/frontend/src/lib/post/framework/ui/PostContentPage.svelte index a19d596..d8093b8 100644 --- a/frontend/src/lib/post/framework/ui/PostContentPage.svelte +++ b/frontend/src/lib/post/framework/ui/PostContentPage.svelte @@ -3,6 +3,7 @@ import PostContentHeader from '$lib/post/framework/ui/PostContentHeader.svelte'; import { getContext, onMount } from 'svelte'; import markdownit from 'markdown-it'; + import SafeHtml from '$lib/common/framework/ui/SafeHtml.svelte'; const { id }: { id: number } = $props(); @@ -15,12 +16,12 @@ onMount(() => postBloc.dispatch({ event: PostEventType.PostLoadedEvent, id: id })); -
+
{#if state.data}
- {@html parsedContent} +
{/if}
diff --git a/frontend/src/routes/+error.svelte b/frontend/src/routes/+error.svelte index 64347e2..a28522e 100644 --- a/frontend/src/routes/+error.svelte +++ b/frontend/src/routes/+error.svelte @@ -16,4 +16,3 @@ -
{page.error?.message}