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refactor(cors): simplify origin handling and improve CORS headers

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shuaiplus
2026-03-11 02:36:50 +08:00
parent 9b26feb310
commit ad764a9c5b
1 changed files with 5 additions and 26 deletions
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src/utils/response.ts
+5 -26
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@@ -17,25 +17,10 @@ const DEFAULT_CORS_HEADERS = [
'X-Device-Name',
];
function isTrustedClientOrigin(origin: string): boolean {
// Official browser extension / desktop-webview common origins.
if (origin.startsWith('chrome-extension://')) return true;
if (origin.startsWith('moz-extension://')) return true;
if (origin.startsWith('safari-web-extension://')) return true;
if (origin.startsWith('app://')) return true;
if (origin.startsWith('capacitor://')) return true;
if (origin.startsWith('ionic://')) return true;
return false;
}
function getAllowedOrigin(request: Request): string | null {
const origin = request.headers.get('Origin');
if (!origin) return null;
const targetOrigin = new URL(request.url).origin;
if (origin === targetOrigin) return origin;
if (isTrustedClientOrigin(origin)) return origin;
return null;
if (!origin) return '*';
return origin;
}
function buildCorsHeaders(request: Request): Record<string, string> {
@@ -48,14 +33,16 @@ function buildCorsHeaders(request: Request): Record<string, string> {
const headers: Record<string, string> = {
'Access-Control-Allow-Methods': CORS_METHODS,
'Access-Control-Allow-Headers': allowHeaders.join(', '),
'Access-Control-Expose-Headers': '*',
'Access-Control-Max-Age': String(LIMITS.cors.preflightMaxAgeSeconds),
'Access-Control-Allow-Private-Network': 'true',
};
const allowedOrigin = getAllowedOrigin(request);
if (allowedOrigin) {
headers['Access-Control-Allow-Origin'] = allowedOrigin;
headers['Access-Control-Allow-Credentials'] = 'true';
headers['Vary'] = 'Origin';
headers['Vary'] = 'Origin, Access-Control-Request-Headers';
}
return headers;
@@ -131,14 +118,6 @@ export function identityErrorResponse(message: string, error: string = 'invalid_
// Handle CORS preflight
export function handleCors(request: Request): Response {
const origin = request.headers.get('Origin');
if (origin) {
const allowedOrigin = getAllowedOrigin(request);
if (!allowedOrigin) {
return new Response(null, { status: 403 });
}
}
return new Response(null, {
status: 204,
headers: buildCorsHeaders(request),