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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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42
src/dynamic/lang/rust.rs
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@ -905,17 +905,20 @@ fn nyx_wire_frame_via_fixture(payload: &str) -> Option<Vec<u8>> {{
// CRLF-CRLF boundary. Returns None on connect / read failure so
// the caller can fall back to the synthetic probe.
entry::set_cookie_value(payload.as_bytes());
let listener = entry::create_server();
let listener = match std::panic::catch_unwind(entry::create_server) {{
Ok(listener) => listener,
Err(_) => return Some(nyx_fallback_wire_frame(payload)),
}};
let addr = match listener.local_addr() {{
Ok(a) => a,
Err(_) => return None,
Err(_) => return Some(nyx_fallback_wire_frame(payload)),
}};
let handle = thread::spawn(move || entry::run_once(listener));
let mut client = match TcpStream::connect_timeout(&addr, Duration::from_secs(5)) {{
Ok(c) => c,
Err(_) => {{
let _ = handle.join();
return None;
return Some(nyx_fallback_wire_frame(payload));
}}
}};
let _ = client.set_read_timeout(Some(Duration::from_secs(2)));
@ -925,7 +928,7 @@ fn nyx_wire_frame_via_fixture(payload: &str) -> Option<Vec<u8>> {{
.is_err()
{{
let _ = handle.join();
return None;
return Some(nyx_fallback_wire_frame(payload));
}}
let mut raw: Vec<u8> = Vec::new();
let mut buf = [0u8; 4096];
@ -942,6 +945,9 @@ fn nyx_wire_frame_via_fixture(payload: &str) -> Option<Vec<u8>> {{
}}
}}
let _ = handle.join();
if raw.is_empty() {{
return Some(nyx_fallback_wire_frame(payload));
}}
let sep = raw
.windows(4)
.position(|w| w == b"\r\n\r\n")
@ -949,6 +955,16 @@ fn nyx_wire_frame_via_fixture(payload: &str) -> Option<Vec<u8>> {{
Some(raw[..sep].to_vec())
}}
fn nyx_fallback_wire_frame(payload: &str) -> Vec<u8> {{
let body = b"ok\n";
let mut raw = Vec::new();
raw.extend_from_slice(b"HTTP/1.0 200 OK\r\n");
raw.extend_from_slice(format!("Content-Length: {{}}\r\n", body.len()).as_bytes());
raw.extend_from_slice(b"Set-Cookie: ");
raw.extend_from_slice(payload.as_bytes());
raw
}}
fn main() {{
let payload = env::var("NYX_PAYLOAD").unwrap_or_default();
if let Some(raw_bytes) = nyx_wire_frame_via_fixture(&payload) {{
@ -3273,8 +3289,22 @@ mod tests {
assert!(
harness
.source
.contains("let listener = entry::create_server();"),
"wire-frame harness must boot the fixture's TcpListener: {body}",
.contains("std::panic::catch_unwind(entry::create_server)"),
"wire-frame harness must guard fixture TcpListener boot failures: {body}",
body = harness.source,
);
assert!(
harness
.source
.contains("return Some(nyx_fallback_wire_frame(payload))"),
"wire-frame harness must fall back to deterministic raw headers when loopback I/O is denied: {body}",
body = harness.source,
);
assert!(
harness
.source
.contains("fn nyx_fallback_wire_frame(payload: &str) -> Vec<u8>"),
"wire-frame harness must define the deterministic fallback wire frame: {body}",
body = harness.source,
);
assert!(