H-385: address CDP spike review blockers

Co-authored-by: multica-agent <github@multica.ai>
This commit is contained in:
2026-08-20 22:53:26 +08:00
co-authored by multica-agent
parent 8095392f7f
commit 1330585ccc
5 changed files with 150 additions and 98 deletions
+45 -38
View File
@@ -1,38 +1,45 @@
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{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request","request_id":"2473485.5","at":1787237512.688362,"request":{"method":"GET","url":"http://127.0.0.1:40745/large","headers":{"accept-language":"en-US,en;q=0.9","authorization":"[REDACTED]","cookie":"[REDACTED]","referer":"[REDACTED]","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request_headers","request_id":"2473485.5","headers":{"accept":"*/*","accept-encoding":"gzip, deflate, br, zstd","accept-language":"en-US,en;q=0.9","authorization":"[REDACTED]","connection":"keep-alive","cookie":"[REDACTED]","host":"127.0.0.1:40745","sec-fetch-dest":"empty","sec-fetch-mode":"cors","sec-fetch-site":"same-origin","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_response_headers","request_id":"2473485.5","status":200,"headers":{"access-control-allow-headers":"authorization","access-control-allow-origin":"*","connection":"close","content-length":"2048","content-type":"text/plain","date":"Thu, 20 Aug 2026 14:51:52 GMT"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_response","request_id":"2473485.5","response":{"url":"http://127.0.0.1:40745/large","status":200,"protocol":"http/1.1","mime_type":"text/plain","headers":{"access-control-allow-headers":"authorization","access-control-allow-origin":"*","connection":"close","content-length":"2048","content-type":"text/plain","date":"Thu, 20 Aug 2026 14:51:52 GMT"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_finished","request_id":"2473485.5","encoded_bytes":2248}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request","request_id":"2473485.6","at":1787237512.692057,"request":{"method":"GET","url":"https://127.0.0.1:35233/secure","headers":{"accept-language":"en-US,en;q=0.9","authorization":"[REDACTED]","cookie":"[REDACTED]","referer":"[REDACTED]","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request","request_id":"C5A175B024C8583D1FE54757455E50C2","at":1787237512.692597,"request":{"method":"OPTIONS","url":"https://127.0.0.1:35233/secure","headers":{"accept":"*/*","access-control-request-headers":"authorization","access-control-request-method":"GET","origin":"http://127.0.0.1:40745","sec-fetch-mode":"cors","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request_headers","request_id":"C5A175B024C8583D1FE54757455E50C2","headers":{"accept":"*/*","accept-encoding":"gzip, deflate, br, zstd","accept-language":"en-US,en;q=0.9","access-control-request-headers":"authorization","access-control-request-method":"GET","connection":"keep-alive","host":"127.0.0.1:35233","origin":"http://127.0.0.1:40745","sec-fetch-dest":"empty","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_response_headers","request_id":"C5A175B024C8583D1FE54757455E50C2","status":200,"headers":{"access-control-allow-headers":"authorization","access-control-allow-origin":"*","connection":"close","content-length":"15","content-type":"application/json","date":"Thu, 20 Aug 2026 14:51:52 GMT"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_response","request_id":"C5A175B024C8583D1FE54757455E50C2","response":{"url":"https://127.0.0.1:35233/secure","status":200,"protocol":"http/1.1","mime_type":"application/json","headers":{"access-control-allow-headers":"authorization","access-control-allow-origin":"*","connection":"close","content-length":"15","content-type":"application/json","date":"Thu, 20 Aug 2026 14:51:52 GMT"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_finished","request_id":"C5A175B024C8583D1FE54757455E50C2","encoded_bytes":0}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request_headers","request_id":"2473485.6","headers":{"accept":"*/*","accept-encoding":"gzip, deflate, br, zstd","accept-language":"en-US,en;q=0.9","authorization":"[REDACTED]","connection":"keep-alive","cookie":"[REDACTED]","host":"127.0.0.1:35233","origin":"http://127.0.0.1:40745","sec-fetch-dest":"empty","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_response_headers","request_id":"2473485.6","status":200,"headers":{"access-control-allow-headers":"authorization","access-control-allow-origin":"*","connection":"close","content-length":"15","content-type":"application/json","date":"Thu, 20 Aug 2026 14:51:52 GMT"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_response","request_id":"2473485.6","response":{"url":"https://127.0.0.1:35233/secure","status":200,"protocol":"http/1.1","mime_type":"application/json","headers":{"access-control-allow-headers":"authorization","access-control-allow-origin":"*","connection":"close","content-length":"15","content-type":"application/json","date":"Thu, 20 Aug 2026 14:51:52 GMT"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_finished","request_id":"2473485.6","encoded_bytes":219}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"websocket_created","connection_id":"2473485.7","url":"ws://127.0.0.1:40745/ws"}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"websocket_handshake_request","connection_id":"2473485.7","headers":{"accept-encoding":"gzip, deflate, br, zstd","accept-language":"en-US,en;q=0.9","cache-control":"no-cache","connection":"Upgrade","cookie":"[REDACTED]","host":"127.0.0.1:40745","origin":"http://127.0.0.1:40745","pragma":"no-cache","sec-websocket-extensions":"permessage-deflate; client_max_window_bits","sec-websocket-key":"[REDACTED]","sec-websocket-version":"13","upgrade":"websocket","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"websocket_handshake_response","connection_id":"2473485.7","status":101,"headers":{"connection":"Upgrade","sec-websocket-accept":"[REDACTED]","upgrade":"websocket"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"websocket_frame","connection_id":"2473485.7","direction":"sent","opcode":1,"payload_bytes":14,"payload":{"state":"omitted","reason":"frame_policy"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"websocket_frame","connection_id":"2473485.7","direction":"received","opcode":1,"payload_bytes":14,"payload":{"state":"omitted","reason":"frame_policy"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"websocket_closed","connection_id":"2473485.7"}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request","request_id":"2473485.8","at":1787237512.717744,"request":{"method":"GET","url":"http://127.0.0.1:40479/missing","headers":{"accept-language":"en-US,en;q=0.9","authorization":"[REDACTED]","cookie":"[REDACTED]","referer":"[REDACTED]","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_request","request_id":"0A5A1C88A693E98CBD1A4317FB1311EF","at":1787237512.718296,"request":{"method":"OPTIONS","url":"http://127.0.0.1:40479/missing","headers":{"accept":"*/*","access-control-request-headers":"authorization","access-control-request-method":"GET","origin":"http://127.0.0.1:40745","sec-fetch-mode":"cors","user-agent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/148.0.0.0 Safari/537.36"}}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_failed","request_id":"0A5A1C88A693E98CBD1A4317FB1311EF","error":{"text":"net::ERR_CONNECTION_REFUSED","canceled":false}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_failed","request_id":"2473485.8","error":{"text":"net::ERR_CONNECTION_REFUSED","canceled":false}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_body","request_id":"2473485.3","body":{"state":"fetched","storage":"omitted","reason":"default_body_policy","bytes":11}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_body","request_id":"2473485.4","body":{"state":"fetched","storage":"omitted","reason":"default_body_policy","bytes":49}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_body","request_id":"2473485.5","body":{"state":"size_limit","storage":"omitted","bytes":2048}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_body","request_id":"2473485.6","body":{"state":"fetched","storage":"omitted","reason":"default_body_policy","bytes":15}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"http_body","request_id":"2473485.8","body":{"state":"unavailable","storage":"omitted","reason":"cdp_error","error":"-32000: No data found for resource with given identifier"}}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"cdp_disconnected","source":"socket","code":1006,"reason":"socket_closed","was_clean":false}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"4BC8ED5ED08A27BBC10AEEAB38A304D2","kind":"target_closed","reason":"Target.closeTarget"}
{"schema_version":"1.0","session_id":"m0-7bb3bf9e-f607-4f75-bfbb-ebd44c149245","target_id":"AC8BC0503D429618D7033F5AE0731A3C","kind":"cdp_reconnected","verified":true}
+6 -5
View File
@@ -15,15 +15,16 @@
"response_body_size_limit": "pass",
"response_body_unavailable": "pass",
"target_close_survives": "pass",
"cdp_disconnect_survives": "pass",
"sensitive_header_redaction": "pass"
"cdp_disconnect_reconnect": "pass",
"sensitive_header_redaction": "pass",
"sensitive_body_redaction": "pass"
},
"resources": {
"process_count": 9,
"rss_kib": 792008,
"cpu_percent_snapshot": 12.2
"rss_kib": 803048,
"cpu_percent_snapshot": 10.3
},
"event_count": 38,
"event_count": 45,
"max_body_bytes": 1024,
"attempt_failures": []
}
+8 -7
View File
@@ -17,9 +17,9 @@ The spike starts only loopback listeners and uses generated, one-day self-signed
### Connection and schema
Clark is launched directly with `--remote-debugging-address=127.0.0.1`. The runner waits on `/json/version`, discovers the ready startup page through `/json/list`, connects to that target's `webSocketDebuggerUrl`, and navigates to a controlled loopback fixture. The fixture runs in a separate process and waits for a CDP trigger before generating test traffic. This avoids `clarkserve`'s current `0.0.0.0` default; a protected gateway and short-lived credentials remain required outside a local Spike.
Clark is launched directly with `--remote-debugging-address=127.0.0.1`. The runner waits on `/json/version`, discovers the startup page through `/json/list`, connects to its `webSocketDebuggerUrl`, and navigates to the already-listening loopback fixture before triggering test traffic. This avoids `clarkserve`'s current `0.0.0.0` default; a protected gateway and short-lived credentials remain required outside a local Spike.
Every JSONL line has `schema_version`, `session_id`, `target_id`, and `kind`. HTTP records use `request_id`; WebSocket records use the CDP `requestId` as `connection_id`. Kind-specific fields are nested under `request`, `response`, `headers`, `body`, or `error`. Query strings are removed, sensitive headers are replaced by `[REDACTED]`, WebSocket payloads are never persisted, and bodies over the configured limit are represented by `{state:"omitted",reason:"size_limit",bytes:N}`.
Every JSONL line has `schema_version`, `session_id`, `target_id`, and `kind`. HTTP records use `request_id`; WebSocket records use the CDP `requestId` as `connection_id`. Kind-specific fields are nested under `request`, `response`, `headers`, `body`, or `error`. Query strings are removed, sensitive headers are replaced by `[REDACTED]`, and WebSocket payloads are never persisted. Response bodies are safe by default: a fetched body is recorded as `{state:"fetched",storage:"omitted",reason:"default_body_policy",bytes:N}` with no content; oversize and unavailable bodies retain distinct structured states.
### Coverage and limits
@@ -29,17 +29,18 @@ Every JSONL line has `schema_version`, `session_id`, `target_id`, and `kind`. HT
| Failed HTTP request | Pass | Unused loopback port produces `loadingFailed`; error text retained. |
| HTTPS without MITM | Pass | Direct browser connection to local TLS fixture; no network intermediary. |
| WebSocket lifecycle and frames | Pass | Created, handshake, sent, received, and closed share one `connection_id`; payload omitted. |
| `getResponseBody` success | Pass | Called after `loadingFinished` for controlled responses. |
| Body size limit | Pass | 2 KiB fixture is not persisted with the 1 KiB default. |
| `getResponseBody` success | Pass | Called after `loadingFinished`; fetched bytes are recorded but content is omitted by default. |
| Sensitive response body | Pass | Random secret fixture is fetched; serialized JSONL is asserted not to contain its value. |
| Body size limit | Pass | 2 KiB fixture is reported as `size_limit` and not persisted with the 1 KiB default. |
| Body unavailable | Pass | Calling on the failed request returns the original CDP error as structured `cdp_error`. |
| Target close | Pass | Target connection closes; browser process remains alive. |
| Client disconnect | Pass | A second CDP client disconnects; browser process remains alive. |
| CDP disconnect/reconnect | Pass | Browser-side target close triggers the real socket `close` callback; the browser stays alive and a new target accepts a verified CDP command. |
| Cookie / Authorization / Set-Cookie | Pass | `Network.*ExtraInfo` values are redacted before JSONL serialization. |
| Cache-specific body availability | Not covered | Cache behavior varies by response/cache mode; retain optional-body semantics in M1. |
| Sustained high-rate WebSocket | Not covered | M0 stores metadata only; add frame/event caps before M1 load testing. |
| Multi-target/session isolation | Not covered | Explicitly M1 scope. |
| Top-level loopback navigation | Intermittent | This build can report `Inspector.detached: Render process gone` before the request reaches the fixture; rerun preserves the same local reproduction condition. |
| Startup `Page.navigate` | Intermittent | This build can report `Inspector.detached: Render process gone`; the exact startup failure is bounded and recorded. |
The resource numbers are a one-time `ps` snapshot of the browser process tree, not a benchmark. Repeat under the intended container limits before setting capacity targets.
The runner restarts Clark at most three times only for the observed `Inspector.detached` startup failure. Every failed attempt is retained in `attempt_failures`; other errors fail immediately.
The runner restarts Clark at most three times only from the local startup navigation/readiness block, and only after CDP reports the exact detached reason `Render process gone.`. Every failed attempt is retained in `attempt_failures`; a timeout without that reason and every post-startup error fail immediately with the original message.
+84 -45
View File
@@ -48,23 +48,35 @@ export function safeUrl(raw) {
export function boundedBody(body, base64Encoded, maxBytes) {
const bytes = Buffer.from(body, base64Encoded ? "base64" : "utf8");
if (bytes.length > maxBytes) {
return { state: "omitted", reason: "size_limit", bytes: bytes.length };
return { state: "size_limit", storage: "omitted", bytes: bytes.length };
}
return {
state: "stored",
state: "fetched",
storage: "omitted",
reason: "default_body_policy",
bytes: bytes.length,
encoding: "utf8",
text: bytes.toString("utf8"),
};
}
export function shouldRetryStartup(detachedReason) {
return detachedReason === "Render process gone.";
}
class StartupNavigateFailure extends Error {
constructor(cause) {
super(cause.message, { cause });
}
}
class CDP {
constructor(url) {
this.url = url;
this.nextId = 1;
this.pending = new Map();
this.listeners = [];
this.closeListeners = [];
this.closed = new Promise((resolve) => (this.resolveClosed = resolve));
this.detached = new Promise((resolve) => (this.resolveDetached = resolve));
}
async connect() {
@@ -74,10 +86,12 @@ class CDP {
this.ws.onerror = () => reject(new Error("CDP WebSocket connection failed"));
});
this.ws.onmessage = ({ data }) => this.onMessage(JSON.parse(data));
this.ws.onclose = () => {
for (const { reject } of this.pending.values()) reject(new Error("CDP WebSocket closed"));
this.ws.onclose = ({ code, reason, wasClean }) => {
const details = { code, reason: reason || "socket_closed", was_clean: wasClean };
for (const { reject } of this.pending.values()) reject(new Error(`CDP WebSocket closed: ${code} ${details.reason}`));
this.pending.clear();
this.resolveClosed();
for (const listener of this.closeListeners) listener(details);
this.resolveClosed(details);
};
return this;
}
@@ -86,6 +100,17 @@ class CDP {
this.listeners.push(listener);
}
onClose(listener) {
this.closeListeners.push(listener);
}
waitForDetached(timeoutMs) {
return Promise.race([
this.detached,
new Promise((resolve) => setTimeout(resolve, timeoutMs)),
]);
}
onMessage(message) {
if (DEBUG) console.error(
"CDP",
@@ -102,6 +127,8 @@ class CDP {
return;
}
if (message.method === "Inspector.detached") {
this.detachedReason = message.params.reason;
this.resolveDetached(message.params.reason);
const error = new Error(`Inspector.detached: ${message.params.reason}`);
for (const { reject } of this.pending.values()) reject(error);
this.pending.clear();
@@ -109,13 +136,13 @@ class CDP {
for (const listener of this.listeners) listener(message.method, message.params ?? {});
}
call(method, params = {}) {
call(method, params = {}, timeoutMs = 20_000) {
const id = this.nextId++;
return new Promise((resolve, reject) => {
const timer = setTimeout(() => {
this.pending.delete(id);
reject(new Error(`CDP command timed out: ${method}`));
}, 20_000);
}, timeoutMs);
this.pending.set(id, {
resolve: (value) => { clearTimeout(timer); resolve(value); },
reject: (error) => { clearTimeout(timer); reject(error); },
@@ -192,6 +219,7 @@ function acceptWebsocket(request, socket) {
async function startFixtures(tempDir) {
const secrets = {
authorization: randomUUID(),
body: randomUUID(),
cookie: randomUUID(),
setCookie: randomUUID(),
};
@@ -248,6 +276,10 @@ async function startFixtures(tempDir) {
send(response, { ...cors, "content-type": "text/plain" }, "x".repeat(2_048));
return;
}
if (request.url === "/secret") {
send(response, { ...cors, "content-type": "application/json" }, JSON.stringify({ secret: secrets.body }));
return;
}
send(response, { "content-type": "text/html" }, pageHtml);
});
httpServer.on("upgrade", (request, socket) => {
@@ -261,6 +293,7 @@ async function startFixtures(tempDir) {
document.title = "M0_RUNNING";
try {
await (await fetch("http://127.0.0.1:${httpPort}/ok")).text();
await (await fetch("http://127.0.0.1:${httpPort}/secret")).text();
await (await fetch("http://127.0.0.1:${httpPort}/large")).text();
await (await fetch("https://127.0.0.1:${httpsPort}/secure")).text();
await new Promise((resolve, reject) => {
@@ -367,15 +400,6 @@ function processSnapshot(rootPid) {
};
}
function browserPidForPort(port) {
const result = spawnSync("ps", ["-eo", "pid=,args="], { encoding: "utf8" });
assert.equal(result.status, 0, "ps must locate the browser process");
const marker = `--remote-debugging-port=${port}`;
const line = result.stdout.split("\n").find((row) => row.includes(marker) && !row.includes("scripts/m0-spike.mjs"));
assert(line, `browser process with ${marker} must exist`);
return Number(line.trim().split(/\s+/, 1)[0]);
}
function isRunning(pid) {
try {
process.kill(pid, 0);
@@ -486,14 +510,14 @@ async function collectBody(cdp, collector, requestId, maxBodyBytes) {
} catch (error) {
collector.push("http_body", {
request_id: requestId,
body: { state: "unavailable", reason: "cdp_error", error: error.message },
body: { state: "unavailable", storage: "omitted", reason: "cdp_error", error: error.message },
});
}
}
function assertCoverage(collector, secrets) {
const { records, requestState } = collector;
for (const pathname of ["/ok", "/large", "/secure"]) {
for (const pathname of ["/ok", "/secret", "/large", "/secure"]) {
const id = findRequest(records, pathname);
assert(id, `request observed for ${pathname}`);
assert.deepEqual([...requestState.get(id)].filter((value) => ["request", "response", "finished"].includes(value)).sort(), ["finished", "request", "response"]);
@@ -509,8 +533,12 @@ function assertCoverage(collector, secrets) {
assert(records.some((record) => record.kind === "http_request_headers" && record.headers.cookie === REDACTED), "Cookie is redacted");
assert(records.some((record) => record.kind === "http_request_headers" && record.headers.authorization === REDACTED), "Authorization is redacted");
assert(records.some((record) => record.kind === "http_response_headers" && record.headers["set-cookie"] === REDACTED), "Set-Cookie is redacted");
assert(records.some((record) => record.kind === "http_body" && record.body.reason === "size_limit"), "oversize body is omitted");
const secretBody = records.find((record) => record.kind === "http_body" && record.request_id === findRequest(records, "/secret"));
assert.deepEqual(secretBody?.body, { state: "fetched", storage: "omitted", reason: "default_body_policy", bytes: Buffer.byteLength(JSON.stringify({ secret: secrets.body })) });
assert(records.some((record) => record.kind === "http_body" && record.body.state === "size_limit" && record.body.storage === "omitted"), "oversize body is omitted");
assert(records.some((record) => record.kind === "http_body" && record.body.state === "unavailable"), "unavailable body is structured");
assert(records.some((record) => record.kind === "cdp_disconnected" && record.source === "socket"), "real CDP socket close is recorded");
assert(records.some((record) => record.kind === "cdp_reconnected" && record.verified), "CDP reconnect is verified");
}
async function main(attemptFailures = []) {
@@ -525,7 +553,7 @@ async function main(attemptFailures = []) {
const cdpPort = Number(process.env.M0_CDP_PORT ?? 0) || await unusedPort();
const fixtures = await startFixtureProcess(tempDir);
assert.equal((await fetch(fixtures.url)).status, 200, "fixture process must be reachable before Clark starts");
spawn("setsid", ["--fork", binary,
const browser = spawn(binary, [
"--headless=new",
"--no-sandbox",
"--use-mock-keychain",
@@ -537,32 +565,40 @@ async function main(attemptFailures = []) {
"--disable-gpu",
"--disable-features=WebGPU",
"about:blank",
], { stdio: ["ignore", "ignore", DEBUG ? "inherit" : "ignore"] });
], { stdio: ["ignore", "ignore", "pipe"] });
browser.stderr.pipe(process.stderr);
const sessionId = `m0-${randomUUID()}`;
let browserPid;
const browserPid = browser.pid;
let page;
let browserClient;
let reconnectClient;
try {
const version = await waitFor(
() => getJson(`http://127.0.0.1:${cdpPort}/json/version`).catch(() => null),
"clark CDP endpoint",
20_000,
);
browserPid = browserPidForPort(cdpPort);
const targets = await getJson(`http://127.0.0.1:${cdpPort}/json/list`);
page = targets.find((target) => target.type === "page" && target.url === "about:blank");
assert(page, "clark must expose its startup page through /json/list");
const cdp = await new CDP(page.webSocketDebuggerUrl).connect();
const collector = eventCollector(sessionId, page.id);
cdp.onClose((details) => collector.push("cdp_disconnected", { source: "socket", ...details }));
await cdp.call("Page.enable");
await cdp.call("Runtime.enable");
await new Promise((resolve) => setTimeout(resolve, 500));
await cdp.call("Page.navigate", { url: fixtures.url });
await waitFor(async () => {
const { result } = await cdp.call("Runtime.evaluate", { expression: "document.title", returnByValue: true });
return result.value === "M0_READY";
}, "fixture page readiness");
try {
await cdp.call("Page.navigate", { url: fixtures.url }, 60_000);
await waitFor(async () => {
const { result } = await cdp.call("Runtime.evaluate", { expression: "document.title", returnByValue: true });
return result.value === "M0_READY";
}, "fixture page readiness");
} catch (error) {
const detachedReason = cdp.detachedReason ?? await cdp.waitForDetached(1_000);
if (DEBUG) console.error("startup failure", { detached_reason: detachedReason, error: error.message });
if (shouldRetryStartup(detachedReason)) throw new StartupNavigateFailure(error);
throw error;
}
cdp.onEvent(collector.listener);
await cdp.call("Network.enable", { maxTotalBufferSize: 10_000_000, maxResourceBufferSize: 2_000_000 });
await cdp.call("Network.setExtraHTTPHeaders", { headers: {
@@ -577,7 +613,7 @@ async function main(attemptFailures = []) {
}, "fixture completion");
await waitFor(() => [...collector.requestState.values()].some((state) => state.has("ws_closed")), "WebSocket closure");
for (const pathname of ["/ok", "/large", "/secure"]) {
for (const pathname of ["/ok", "/secret", "/large", "/secure"]) {
await collectBody(cdp, collector, findRequest(collector.records, pathname), maxBodyBytes);
}
const failedId = [...collector.requestState.entries()].find(([, state]) => state.has("failed"))?.[0];
@@ -590,11 +626,13 @@ async function main(attemptFailures = []) {
collector.push("target_closed", { reason: "Target.closeTarget" });
assert(isRunning(browserPid), "closing the page does not exit clark-browser");
const disconnectTarget = await getJson(`http://127.0.0.1:${cdpPort}/json/new?about:blank`, { method: "PUT" });
const disconnectClient = await new CDP(disconnectTarget.webSocketDebuggerUrl).connect();
await disconnectClient.close();
collector.push("cdp_disconnected", { reason: "client_closed" });
assert(isRunning(browserPid), "disconnecting CDP does not exit clark-browser");
assert(collector.records.some((record) => record.kind === "cdp_disconnected" && record.source === "socket"), "target closure emits a socket disconnect event");
const reconnectTarget = await getJson(`http://127.0.0.1:${cdpPort}/json/new?about:blank`, { method: "PUT" });
reconnectClient = await new CDP(reconnectTarget.webSocketDebuggerUrl).connect();
const { result: reconnectResult } = await reconnectClient.call("Runtime.evaluate", { expression: "1 + 1", returnByValue: true });
assert.equal(reconnectResult.value, 2, "CDP reconnect can execute a command");
collector.push("cdp_reconnected", { target_id: reconnectTarget.id, verified: true });
assert(isRunning(browserPid), "disconnecting and reconnecting CDP does not exit clark-browser");
assertCoverage(collector, fixtures.secrets);
await mkdir(outputDir, { recursive: true });
@@ -616,8 +654,9 @@ async function main(attemptFailures = []) {
response_body_size_limit: "pass",
response_body_unavailable: "pass",
target_close_survives: "pass",
cdp_disconnect_survives: "pass",
cdp_disconnect_reconnect: "pass",
sensitive_header_redaction: "pass",
sensitive_body_redaction: "pass",
},
resources,
event_count: collector.records.length,
@@ -626,9 +665,10 @@ async function main(attemptFailures = []) {
}, null, 2)}\n`);
console.log(`M0 PASS: ${collector.records.length} sanitized events; RSS snapshot ${resources.rss_kib} KiB`);
} finally {
if (reconnectClient) await reconnectClient.close().catch(() => {});
if (browserClient) await browserClient.close().catch(() => {});
if (browserPid && isRunning(browserPid)) process.kill(browserPid, "SIGTERM");
if (browserPid) await waitFor(() => !isRunning(browserPid), "browser shutdown").catch(() => {});
if (browser.exitCode === null) browser.kill("SIGTERM");
if (browser.exitCode === null) await new Promise((resolve) => browser.once("exit", resolve));
await fixtures.close();
await rm(tempDir, { recursive: true, force: true });
}
@@ -641,11 +681,10 @@ async function runSpike() {
await main(failures);
return;
} catch (error) {
failures.push(error.message);
const retryable = error.message.startsWith("Inspector.detached:") ||
error.message === "CDP command timed out: Page.navigate";
if (!retryable || attempt === 3) throw error;
console.error(`M0 retry ${attempt}/3: ${error.message}`);
const original = error.cause ?? error;
failures.push(original.message);
if (!(error instanceof StartupNavigateFailure) || attempt === 3) throw original;
console.error(`M0 retry ${attempt}/3: ${original.message}`);
}
}
}
+7 -3
View File
@@ -2,7 +2,7 @@ import assert from "node:assert/strict";
import { randomUUID } from "node:crypto";
import test from "node:test";
import { boundedBody, redactHeaders, safeUrl } from "../scripts/m0-spike.mjs";
import { boundedBody, redactHeaders, safeUrl, shouldRetryStartup } from "../scripts/m0-spike.mjs";
test("export policy redacts credentials and bounds bodies", () => {
const sensitive = randomUUID();
@@ -14,6 +14,10 @@ test("export policy redacts credentials and bounds bodies", () => {
"set-cookie": "[REDACTED]",
});
assert.equal(safeUrl("https://example.test/path?token=secret"), "https://example.test/path?<redacted>");
assert.deepEqual(boundedBody("hello", false, 5), { state: "stored", bytes: 5, encoding: "utf8", text: "hello" });
assert.deepEqual(boundedBody("hello!", false, 5), { state: "omitted", reason: "size_limit", bytes: 6 });
assert.deepEqual(boundedBody(sensitive, false, 100), { state: "fetched", storage: "omitted", reason: "default_body_policy", bytes: Buffer.byteLength(sensitive) });
assert(!JSON.stringify(boundedBody(sensitive, false, 100)).includes(sensitive));
assert.deepEqual(boundedBody("hello!", false, 5), { state: "size_limit", storage: "omitted", bytes: 6 });
assert(shouldRetryStartup("Render process gone."));
assert(!shouldRetryStartup("Target closed."));
assert(!shouldRetryStartup(undefined));
});