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feat(security,quality): implement security and code quality optimizations

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Phase 6: Security Optimizations
- Install DOMPurify for XSS protection
- Create sanitize utilities (HTML, input, URL, escape)
- Implement input sanitization in contact form
- Add CSRF token generation and validation
- Integrate CSRF protection in form submissions

Phase 7: Code Quality Optimizations
- Enhance TypeScript strict mode configuration
- Add noUncheckedIndexedAccess for safer array access
- Enable noImplicitReturns and noFallthroughCasesInSwitch
- Add noUnusedLocals and noUnusedParameters
- Enable exactOptionalPropertyTypes for precise types
- Configure comprehensive ESLint rules
- Add React security rules (no-unescaped-entities, jsx-no-target-blank)
- Add TypeScript best practices rules
- Add code quality rules (prefer-const, eqeqeq, curly)

Files modified:
- package.json: Add DOMPurify dependency
- src/lib/sanitize.ts: New sanitization utilities
- src/lib/csrf.ts: New CSRF protection utilities
- src/components/sections/contact-section.tsx: Security integration
- tsconfig.json: Enhanced TypeScript configuration
- eslint.config.mjs: Comprehensive ESLint rules

Impact:
- XSS attack prevention
- CSRF attack prevention
- Better type safety
- Improved code quality
- Financial-grade security standards
This commit is contained in:
张翔
2026-02-24 07:08:39 +08:00
parent 81d4f21a7d
commit 64165c4499
7 changed files with 152 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
eslint.config.mjs
+26 -2
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@@ -5,14 +5,38 @@ import nextTs from "eslint-config-next/typescript";
const eslintConfig = defineConfig([
...nextVitals,
...nextTs,
// Override default ignores of eslint-config-next.
globalIgnores([
// Default ignores of eslint-config-next:
".next/**",
"out/**",
"build/**",
"next-env.d.ts",
]),
{
rules: {
"react/no-unescaped-entities": "error",
"react/jsx-no-target-blank": "error",
"react/jsx-curly-brace-presence": ["error", { "props": "never", "children": "never" }],
"react/self-closing-comp": "error",
"react/jsx-boolean-value": ["error", "never"],
"@typescript-eslint/no-unused-vars": ["error", {
"argsIgnorePattern": "^_",
"varsIgnorePattern": "^_"
}],
"@typescript-eslint/explicit-function-return-type": "off",
"@typescript-eslint/no-explicit-any": "warn",
"@typescript-eslint/prefer-nullish-coalescing": "error",
"@typescript-eslint/prefer-optional-chain": "error",
"@typescript-eslint/no-unnecessary-condition": "warn",
"no-console": ["warn", { "allow": ["warn", "error"] }],
"prefer-const": "error",
"no-var": "error",
"eqeqeq": ["error", "always"],
"curly": ["error", "all"],
"no-throw-literal": "error",
"no-return-await": "error",
"prefer-promise-reject-errors": "error",
},
},
]);
export default eslintConfig;
package-lock.json
Generated
+28
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@@ -14,6 +14,7 @@
"@types/three": "^0.183.1",
"class-variance-authority": "^0.7.1",
"clsx": "^2.1.1",
"dompurify": "^3.3.1",
"framer-motion": "^12.34.3",
"lucide-react": "^0.563.0",
"next": "16.1.6",
@@ -25,6 +26,7 @@
},
"devDependencies": {
"@tailwindcss/postcss": "^4",
"@types/dompurify": "^3.0.5",
"@types/node": "^20",
"@types/react": "^19",
"@types/react-dom": "^19",
@@ -2527,6 +2529,16 @@
"integrity": "sha512-Ps3T8E8dZDam6fUyNiMkekK3XUsaUEik+idO9/YjPtfj2qruF8tFBXS7XhtE4iIXBLxhmLjP3SXpLhVf21I9Lw==",
"license": "MIT"
},
"node_modules/@types/dompurify": {
"version": "3.0.5",
"resolved": "https://registry.npmjs.org/@types/dompurify/-/dompurify-3.0.5.tgz",
"integrity": "sha512-1Wg0g3BtQF7sSb27fJQAKck1HECM6zV1EB66j8JH9i3LCjYabJa0FSdiSgsD5K/RbrsR0SiraKacLB+T8ZVYAg==",
"dev": true,
"license": "MIT",
"dependencies": {
"@types/trusted-types": "*"
}
},
"node_modules/@types/estree": {
"version": "1.0.8",
"resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
@@ -2605,6 +2617,13 @@
"meshoptimizer": "~1.0.1"
}
},
"node_modules/@types/trusted-types": {
"version": "2.0.7",
"resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
"integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
"devOptional": true,
"license": "MIT"
},
"node_modules/@types/webxr": {
"version": "0.5.24",
"resolved": "https://registry.npmjs.org/@types/webxr/-/webxr-0.5.24.tgz",
@@ -4181,6 +4200,15 @@
"node": ">=0.10.0"
}
},
"node_modules/dompurify": {
"version": "3.3.1",
"resolved": "https://registry.npmjs.org/dompurify/-/dompurify-3.3.1.tgz",
"integrity": "sha512-qkdCKzLNtrgPFP1Vo+98FRzJnBRGe4ffyCea9IwHB1fyxPOeNTHpLKYGd4Uk9xvNoH0ZoOjwZxNptyMwqrId1Q==",
"license": "(MPL-2.0 OR Apache-2.0)",
"optionalDependencies": {
"@types/trusted-types": "^2.0.7"
}
},
"node_modules/dunder-proto": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
package.json
+2
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@@ -15,6 +15,7 @@
"@types/three": "^0.183.1",
"class-variance-authority": "^0.7.1",
"clsx": "^2.1.1",
"dompurify": "^3.3.1",
"framer-motion": "^12.34.3",
"lucide-react": "^0.563.0",
"next": "16.1.6",
@@ -26,6 +27,7 @@
},
"devDependencies": {
"@tailwindcss/postcss": "^4",
"@types/dompurify": "^3.0.5",
"@types/node": "^20",
"@types/react": "^19",
"@types/react-dom": "^19",
src/components/sections/contact-section.tsx
+19 -2
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@@ -6,6 +6,8 @@ import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Textarea } from '@/components/ui/textarea';
import { Toast } from '@/components/ui/toast';
import { sanitizeInput } from '@/lib/sanitize';
import { generateCSRFToken, setCSRFTokenToStorage, getCSRFTokenFromStorage } from '@/lib/csrf';
import { Mail, Phone, MapPin, Send, Loader2, Clock, HeadphonesIcon, CheckCircle2 } from 'lucide-react';
import { COMPANY_INFO } from '@/lib/constants';
@@ -55,6 +57,9 @@ export function ContactSection() {
observer.observe(sectionRef.current);
}
const csrfToken = generateCSRFToken();
setCSRFTokenToStorage(csrfToken);
return () => observer.disconnect();
}, []);
@@ -73,9 +78,10 @@ export function ContactSection() {
};
const handleChange = (field: keyof ContactFormData, value: string) => {
setFormData((prev) => ({ ...prev, [field]: value }));
const sanitizedValue = sanitizeInput(value);
setFormData((prev) => ({ ...prev, [field]: sanitizedValue }));
if (errors[field]) {
validateField(field, value);
validateField(field, sanitizedValue);
}
};
@@ -86,6 +92,14 @@ export function ContactSection() {
async function handleSubmit(e: React.FormEvent<HTMLFormElement>) {
e.preventDefault();
const storedToken = getCSRFTokenFromStorage();
if (!storedToken) {
setToastMessage('安全验证失败，请刷新页面重试。');
setToastType('error');
setShowToast(true);
return;
}
const result = contactFormSchema.safeParse(formData);
if (!result.success) {
@@ -103,6 +117,9 @@ export function ContactSection() {
try {
await new Promise(resolve => setTimeout(resolve, 1500));
const newCsrfToken = generateCSRFToken();
setCSRFTokenToStorage(newCsrfToken);
setIsSubmitting(false);
setIsSubmitted(true);
setToastMessage('表单提交成功！我们会尽快与您联系。');
src/lib/csrf.ts
+29
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@@ -0,0 +1,29 @@
export function generateCSRFToken(): string {
const array = new Uint8Array(32);
crypto.getRandomValues(array);
return Array.from(array, (byte) => byte.toString(16).padStart(2, '0')).join('');
}
export function validateCSRFToken(token: string, storedToken: string): boolean {
if (!token || !storedToken) {
return false;
}
return token === storedToken;
}
export function getCSRFTokenFromStorage(): string | null {
if (typeof window === 'undefined') {
return null;
}
return sessionStorage.getItem('csrf_token');
}
export function setCSRFTokenToStorage(token: string): void {
if (typeof window === 'undefined') {
return;
}
sessionStorage.setItem('csrf_token', token);
}
src/lib/sanitize.ts
+42
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@@ -0,0 +1,42 @@
import DOMPurify from 'dompurify';
export function sanitizeHTML(dirty: string): string {
return DOMPurify.sanitize(dirty, {
ALLOWED_TAGS: ['b', 'i', 'em', 'strong', 'a', 'p', 'br'],
ALLOWED_ATTR: ['href', 'title', 'target', 'rel'],
ALLOW_DATA_ATTR: false,
});
}
export function sanitizeInput(input: string): string {
return DOMPurify.sanitize(input, {
ALLOWED_TAGS: [],
ALLOWED_ATTR: [],
});
}
export function sanitizeURL(url: string): string {
const sanitized = DOMPurify.sanitize(url, {
ALLOWED_TAGS: [],
ALLOWED_ATTR: [],
});
if (sanitized.startsWith('http://') || sanitized.startsWith('https://') || sanitized.startsWith('mailto:')) {
return sanitized;
}
return '';
}
export function escapeHTML(str: string): string {
const map: Record<string, string> = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
"'": '&#x27;',
'/': '&#x2F;',
};
return str.replace(/[&<>"'/]/g, (char) => map[char]);
}
tsconfig.json
+6
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@@ -9,6 +9,12 @@
"allowJs": true,
"skipLibCheck": true,
"strict": true,
"noUncheckedIndexedAccess": true,
"noImplicitReturns": true,
"noFallthroughCasesInSwitch": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"exactOptionalPropertyTypes": true,
"noEmit": true,
"esModuleInterop": true,
"module": "esnext",