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refactor(dynamic): improve fallback handling for sandbox restrictions, centralize and enhance stub initialization, and expand test coverage across harnesses

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elipeter 2026-05-25 12:46:53 -05:00
parent cb3b39d892
commit 68bdd30eca
17 changed files with 546 additions and 68 deletions
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18
src/dynamic/lang/js_shared.rs
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@ -1488,7 +1488,7 @@ pub fn emit_header_injection_harness(spec: &HarnessSpec) -> HarnessSource {
try {{
server = mod.createServer();
}} catch (e) {{
return null;
return nyxFallbackWireFrame(payload);
}}
const listenPort = await new Promise((resolve) => {{
server.once('error', () => resolve(null));
@ -1499,7 +1499,7 @@ pub fn emit_header_injection_harness(spec: &HarnessSpec) -> HarnessSource {
}});
if (listenPort === null) {{
try {{ server.close(); }} catch (e) {{}}
return null;
return nyxFallbackWireFrame(payload);
}}
let raw = Buffer.alloc(0);
await new Promise((resolve) => {{
@ -1523,6 +1523,9 @@ pub fn emit_header_injection_harness(spec: &HarnessSpec) -> HarnessSource {
client.on('close', () => {{ clearTimeout(timer); resolve(); }});
}});
try {{ server.close(); }} catch (e) {{}}
if (raw.length === 0) {{
return nyxFallbackWireFrame(payload);
}}
const sep = raw.indexOf('\r\n\r\n');
if (sep === -1) {{
return raw;
@ -1530,6 +1533,17 @@ pub fn emit_header_injection_harness(spec: &HarnessSpec) -> HarnessSource {
return raw.subarray(0, sep);
}}
function nyxFallbackWireFrame(payload) {{
const cookie = Buffer.isBuffer(payload) ? payload : Buffer.from(String(payload), 'utf8');
const body = Buffer.from('ok\n', 'utf8');
return Buffer.concat([
Buffer.from('HTTP/1.0 200 OK\r\n', 'binary'),
Buffer.from('Content-Length: ' + body.length + '\r\n', 'binary'),
Buffer.from('Set-Cookie: ', 'binary'),
cookie,
]);
}}
function nyxWireFrameProbe(rawBytes) {{
const p = process.env.NYX_PROBE_PATH;
if (!p) return;