Files
pikasTech-unidesk/scripts/src/hwlab-node-web-observe-runner-runtime-source.ts
T

1012 lines
42 KiB
TypeScript

// SPEC: PJ2026-01040111 long-running Workbench observation.
// Responsibility: Runner filesystem setup, heartbeat, browser process monitoring, freeze policy, and passive page listeners source fragment.
export function nodeWebObserveRunnerRuntimeSource(): string {
return String.raw`async function prepareDirs() {
await mkdir(stateDir, { recursive: true, mode: 0o700 });
await Promise.all(Object.values(dirs).map((dir) => mkdir(dir, { recursive: true, mode: 0o700 })));
}
async function rotateExistingJsonlArtifacts() {
for (const [key, file] of Object.entries(files)) {
if (!file.endsWith(".jsonl")) continue;
let meta = null;
try {
meta = await stat(file);
} catch (error) {
if (error?.code === "ENOENT") continue;
throw error;
}
if (!meta?.isFile()) continue;
const archiveFile = await uniqueArchiveFile(jsonlRotation.stamp + "-" + path.basename(file));
await rename(file, archiveFile);
jsonlRotation.files.push({ key, from: path.relative(stateDir, file), to: path.relative(stateDir, archiveFile), byteCount: meta.size });
}
}
async function uniqueArchiveFile(name) {
let candidate = path.join(dirs.archive, name);
const parsed = path.parse(name);
for (let index = 1; ; index += 1) {
try {
await stat(candidate);
candidate = path.join(dirs.archive, parsed.name + "-" + index + parsed.ext);
} catch (error) {
if (error?.code === "ENOENT") return candidate;
throw error;
}
}
}
function compactFileTimestamp(value) {
return new Date(value).toISOString().replace(/[-:]/gu, "").replace(/[.]\d{3}Z$/u, "Z");
}
async function writeManifest(extra = {}) {
const manifest = {
ok: extra.status !== "failed",
command: "web-probe-observe",
specRef,
jobId,
pid: process.pid,
stateDir,
baseUrl,
targetPath,
network: publicNetwork(playwrightProxy),
navigation: { maxAttempts: navigationMaxAttempts, valuesRedacted: true },
pageAuthority: { browser: "chromium", context: "shared-auth", pageMode: "dual-control-observer", controlPageId: pageId, observerPageId, continuityBreaksRecorded: true },
pageProvenance: compactPageProvenance(currentPageProvenance),
sampling: { mode: "passive", sampleIntervalMs, screenshotIntervalMs, maxSamples, observerRefreshIntervalMs, observerInitiatedDefault: false, responseBodyReadDefault: false },
alertThresholds,
browserFreezePolicy,
projectManagement,
jsonlRotation,
commandDirs: dirs,
artifacts: files,
safety: { pureClient: true, inboundApi: false, database: false, queueConsumer: false, k8sWorkload: false, valuesRedacted: true, secretValuesPrinted: false },
startedAt,
...extra,
};
await writeFile(files.manifest, JSON.stringify(manifest, null, 2) + "\n", { mode: 0o600 });
}
async function writeHeartbeat(extra = {}) {
const heartbeat = {
ok: terminalStatus !== "failed",
jobId,
pid: process.pid,
stateDir,
status: terminalStatus,
pageId,
observerPageId,
baseUrl,
currentUrl: currentPageUrl(),
observerUrl: pageUrl(observerPage),
observerRefreshIntervalMs,
lastObserverRefreshAt: Number.isFinite(lastObserverRefreshAtMs) ? new Date(lastObserverRefreshAtMs).toISOString() : null,
pageProvenance: compactPageProvenance(currentPageProvenance),
sampleSeq,
commandSeq,
activeCommandId,
updatedAt: new Date().toISOString(),
uptimeMs: Date.now() - startedAtMs,
...extra,
};
await writeFile(files.heartbeat, JSON.stringify(heartbeat, null, 2) + "\n", { mode: 0o600 });
}
function startHeartbeatPulse() {
const timer = setInterval(() => {
if (stopping) return;
void writeHeartbeat({ status: terminalStatus, heartbeatPulse: true })
.catch((error) => appendJsonl(files.errors, eventRecord("heartbeat-pulse-error", { error: errorSummary(error) })));
}, 5000);
if (timer && typeof timer.unref === "function") timer.unref();
return timer;
}
function startBrowserProcessMonitor() {
const intervalMs = Math.max(250, Math.floor(Number(alertThresholds.browserProcessSampleIntervalMs) || 1000));
let stopped = false;
let running = false;
const tick = async (reason) => {
if (stopped || running || stopping || browserFreezeBlocker) return;
running = true;
try {
await collectBrowserProcessSample(reason || "interval");
} catch (error) {
await appendJsonl(files.errors, eventRecord("browser-process-monitor-error", { error: errorSummary(error), valuesRedacted: true })).catch(() => {});
} finally {
running = false;
}
};
void tick("startup");
const timer = setInterval(() => {
void tick("interval");
}, intervalMs);
if (timer && typeof timer.unref === "function") timer.unref();
return () => {
stopped = true;
clearInterval(timer);
};
}
async function collectBrowserProcessSample(reason) {
browserProcessMonitorSeq += 1;
const tsMs = Date.now();
const browserPid = browserProcessPid();
const processSummary = await collectChromiumProcessSummary(browserPid);
const growth = updateBrowserProcessHistory(tsMs, processSummary);
const pages = [];
if (page && !page.isClosed()) {
pages.push(await collectBrowserPageRuntimeMetrics(page, { pageRole: "control", targetPageId: pageId, pageEpoch: controlPageEpoch }).catch((error) => browserPageRuntimeMetricError("control", pageId, controlPageEpoch, error)));
}
if (observerPage && !observerPage.isClosed()) {
pages.push(await collectBrowserPageRuntimeMetrics(observerPage, { pageRole: "observer", targetPageId: observerPageId, pageEpoch: observerPageEpoch }).catch((error) => browserPageRuntimeMetricError("observer", observerPageId, observerPageEpoch, error)));
}
const sample = eventRecord("browser-process-sample", {
seq: browserProcessMonitorSeq,
reason,
monitorIntervalMs: Math.max(250, Math.floor(Number(alertThresholds.browserProcessSampleIntervalMs) || 1000)),
browserPid,
process: processSummary,
growth,
pages,
valuesRedacted: true,
});
await appendJsonl(files.browserProcess, sample);
await enforceBrowserFreezePolicy(sample);
}
async function enforceBrowserFreezePolicy(sample) {
if (browserFreezePolicy.enabled !== true || browserFreezeBlocker) return;
const processSummary = sample && typeof sample.process === "object" ? sample.process : {};
const growth = sample && typeof sample.growth === "object" ? sample.growth : {};
const totalRssMb = Number(processSummary.totalRssMb);
const processRssMb = Number(processSummary.maxProcessRssMb);
const totalGrowthMb = Number(growth.totalRssGrowthMb);
const processGrowthMb = Number(growth.maxProcessRssGrowthMb);
for (const pageMetric of Array.isArray(sample.pages) ? sample.pages : []) {
const effectiveMemory = pageMetric?.effectiveMemory && typeof pageMetric.effectiveMemory === "object" ? pageMetric.effectiveMemory : {};
const effectiveHeapUsedMb = Number(effectiveMemory.effectiveHeapUsedMb);
const effectiveJsHeapUsedMb = Number(effectiveMemory.effectiveJsHeapUsedMb);
const heapGrowthMb = Number(effectiveMemory.heapUsedGrowthMb);
const jsHeapGrowthMb = Number(effectiveMemory.jsHeapUsedGrowthMb);
if (
(Number.isFinite(effectiveHeapUsedMb) && effectiveHeapUsedMb >= browserFreezePolicy.memory.processRssBlockerMb)
|| (Number.isFinite(effectiveJsHeapUsedMb) && effectiveJsHeapUsedMb >= browserFreezePolicy.memory.processRssBlockerMb)
) {
await triggerBrowserFreezeBlocker({
kind: "memory-page-effective",
rootCause: "frontend_browser_page_effective_memory_pressure",
observed: {
pageRole: pageMetric?.pageRole ?? null,
pageId: pageMetric?.pageId ?? null,
pageEpoch: pageMetric?.pageEpoch ?? null,
totalRssMb,
processRssMb,
totalGrowthMb,
processGrowthMb,
effectiveHeapUsedMb: Number.isFinite(effectiveHeapUsedMb) ? effectiveHeapUsedMb : null,
effectiveJsHeapUsedMb: Number.isFinite(effectiveJsHeapUsedMb) ? effectiveJsHeapUsedMb : null,
baseline: pageMetric?.baseline ?? null,
valuesRedacted: true,
},
threshold: { processRssBlockerMb: browserFreezePolicy.memory.processRssBlockerMb, policyScope: "per-page-effective-memory", valuesRedacted: true },
sample: browserProcessSampleRef(sample),
page: browserPageMetricRef(pageMetric),
});
return;
}
if (
(Number.isFinite(heapGrowthMb) && heapGrowthMb >= browserFreezePolicy.memory.growthBlockerMb)
|| (Number.isFinite(jsHeapGrowthMb) && jsHeapGrowthMb >= browserFreezePolicy.memory.growthBlockerMb)
) {
await triggerBrowserFreezeBlocker({
kind: "memory-page-effective-growth",
rootCause: "frontend_browser_page_memory_leak_or_unbounded_render_growth",
observed: {
pageRole: pageMetric?.pageRole ?? null,
pageId: pageMetric?.pageId ?? null,
pageEpoch: pageMetric?.pageEpoch ?? null,
totalRssMb,
processRssMb,
totalGrowthMb,
processGrowthMb,
heapGrowthMb: Number.isFinite(heapGrowthMb) ? heapGrowthMb : null,
jsHeapGrowthMb: Number.isFinite(jsHeapGrowthMb) ? jsHeapGrowthMb : null,
baseline: pageMetric?.baseline ?? null,
valuesRedacted: true,
},
threshold: { growthBlockerMb: browserFreezePolicy.memory.growthBlockerMb, windowMs: browserFreezePolicy.blockerWindowMs, policyScope: "per-page-effective-memory", valuesRedacted: true },
sample: browserProcessSampleRef(sample),
page: browserPageMetricRef(pageMetric),
});
return;
}
const responsiveness = pageMetric?.responsiveness && typeof pageMetric.responsiveness === "object" ? pageMetric.responsiveness : {};
const responsivenessLatencyMs = Number(responsiveness.latencyMs);
if (responsiveness.timeout === true || (Number.isFinite(responsivenessLatencyMs) && responsivenessLatencyMs >= browserFreezePolicy.responsiveness.latencyBlockerMs)) {
const signal = recordBrowserFreezeSignal("playwright-responsiveness", sample, pageMetric, {
rootCause: "frontend_browser_page_unresponsive_to_playwright",
observed: {
responsivenessLatencyMs: Number.isFinite(responsivenessLatencyMs) ? responsivenessLatencyMs : null,
responsivenessTimeout: responsiveness.timeout === true,
valuesRedacted: true,
},
threshold: {
latencyBlockerMs: browserFreezePolicy.responsiveness.latencyBlockerMs,
eventBlockerCount: browserFreezePolicy.responsiveness.eventBlockerCount,
windowMs: browserFreezePolicy.blockerWindowMs,
valuesRedacted: true,
},
});
if (signal.burst.length >= browserFreezePolicy.responsiveness.eventBlockerCount) {
await triggerBrowserFreezeBlocker(signal);
return;
}
}
const cdp = pageMetric?.cdp && typeof pageMetric.cdp === "object" ? pageMetric.cdp : {};
const calls = Array.isArray(cdp.calls) ? cdp.calls : [];
const metricTimeoutCalls = calls.filter((call) => call?.timeout === true && call?.method !== "Runtime.evaluate");
const sessionTimeoutCount = calls.length === 0 ? Number(cdp.timeoutCount || 0) : 0;
const metricTimeoutCount = metricTimeoutCalls.length + (Number.isFinite(sessionTimeoutCount) ? sessionTimeoutCount : 0);
if (metricTimeoutCount > 0) {
const signal = recordBrowserFreezeSignal("cdp-metrics-timeout", sample, pageMetric, {
rootCause: "frontend_browser_cdp_metrics_unresponsive",
observed: {
cdpMetricsTimeoutCount: metricTimeoutCount,
methods: metricTimeoutCalls.map((call) => call.method || "unknown").slice(0, 8),
valuesRedacted: true,
},
threshold: {
metricsTimeoutBlockerCount: browserFreezePolicy.cdp.metricsTimeoutBlockerCount,
windowMs: browserFreezePolicy.blockerWindowMs,
valuesRedacted: true,
},
});
if (signal.burst.length >= browserFreezePolicy.cdp.metricsTimeoutBlockerCount) {
await triggerBrowserFreezeBlocker(signal);
return;
}
}
}
}
function recordBrowserFreezeSignal(kind, sample, pageMetric, detail) {
const tsMs = Date.parse(String(sample?.ts || ""));
const signal = {
kind,
ts: sample?.ts ?? new Date().toISOString(),
tsMs: Number.isFinite(tsMs) ? tsMs : Date.now(),
pageRole: pageMetric?.pageRole ?? null,
pageId: pageMetric?.pageId ?? null,
pageEpoch: pageMetric?.pageEpoch ?? null,
sample: browserProcessSampleRef(sample),
page: browserPageMetricRef(pageMetric),
...detail,
valuesRedacted: true,
};
browserFreezeSignalHistory.push(signal);
const windowMs = browserFreezePolicy.blockerWindowMs;
const cutoff = signal.tsMs - windowMs;
while (browserFreezeSignalHistory.length > 0 && Number(browserFreezeSignalHistory[0].tsMs || 0) < cutoff) browserFreezeSignalHistory.shift();
return {
kind,
rootCause: detail.rootCause,
observed: detail.observed,
threshold: detail.threshold,
sample: browserProcessSampleRef(sample),
page: browserPageMetricRef(pageMetric),
burst: browserFreezeSignalHistory.filter((item) => item.kind === kind && item.tsMs >= cutoff).slice(-20),
valuesRedacted: true,
};
}
async function triggerBrowserFreezeBlocker(trigger) {
if (browserFreezeBlocker) return;
stopping = true;
terminalStatus = "failed";
const base = {
id: "browser-freeze-policy-blocker",
severity: "red",
blocking: true,
kind: trigger.kind,
summary: "web-probe runner matched YAML browserFreezePolicy and stopped the browser; this run must stay red instead of refreshing or falling back",
rootCause: trigger.rootCause,
rootCauseStatus: "confirmed-from-runner-browser-freeze-policy",
rootCauseConfidence: "high",
fallbackAllowed: false,
observerRefreshAllowed: false,
policySource: "config/hwlab-node-lanes.yaml#webProbe.browserFreezePolicy via UNIDESK_WEB_OBSERVE_BROWSER_FREEZE_POLICY_JSON",
observed: trigger.observed || null,
threshold: trigger.threshold || null,
sample: trigger.sample || null,
page: trigger.page || null,
burst: Array.isArray(trigger.burst) ? trigger.burst.slice(0, 20) : [],
valuesRedacted: true,
};
browserFreezeBlocker = { ...base, browserKill: { ok: false, pending: true, valuesRedacted: true }, valuesRedacted: true };
const browserKill = browserFreezePolicy.kill.enabled === true
? await terminateBrowserForFreezeBlocker(base).catch((error) => ({ ok: false, error: errorSummary(error), valuesRedacted: true }))
: { ok: true, skipped: true, reason: "kill-disabled-by-yaml-policy", valuesRedacted: true };
browserFreezeBlocker = { ...base, browserKill, valuesRedacted: true };
await appendJsonl(files.browserProcess, eventRecord("browser-freeze-blocker", browserFreezeBlocker)).catch(() => {});
await appendJsonl(files.errors, eventRecord("browser-freeze-blocker", {
...browserFreezeBlocker,
error: {
name: "BrowserFreezeBlocker",
message: "YAML browserFreezePolicy matched: " + String(trigger.kind || "unknown"),
details: browserFreezeBlocker,
valuesRedacted: true,
},
})).catch(() => {});
await writeHeartbeat({ status: "failed", blocker: browserFreezeBlocker }).catch(() => {});
await writeManifest({ status: "failed", blocker: browserFreezeBlocker }).catch(() => {});
}
async function terminateBrowserForFreezeBlocker(blocker) {
const childProcess = browser && typeof browser.process === "function" ? browser.process() : null;
const pid = Number(childProcess?.pid);
if (!Number.isFinite(pid) || pid <= 0) {
return { ok: false, reason: "browser-process-unavailable", blockerKind: blocker.kind, valuesRedacted: true };
}
const result = {
ok: false,
pid: Math.floor(pid),
gracefulSignal: browserFreezePolicy.kill.gracefulSignal,
forceSignal: browserFreezePolicy.kill.forceSignal,
graceMs: browserFreezePolicy.kill.graceMs,
pollIntervalMs: browserFreezePolicy.kill.pollIntervalMs,
gracefulSent: false,
forceSent: false,
exitedAfterGrace: false,
exitedAfterForce: false,
valuesRedacted: true,
};
try {
childProcess.kill(browserFreezePolicy.kill.gracefulSignal);
result.gracefulSent = true;
} catch (error) {
result.gracefulError = errorSummary(error);
}
result.exitedAfterGrace = await waitForPidExit(result.pid, browserFreezePolicy.kill.graceMs, browserFreezePolicy.kill.pollIntervalMs);
if (!result.exitedAfterGrace) {
try {
childProcess.kill(browserFreezePolicy.kill.forceSignal);
result.forceSent = true;
} catch (error) {
result.forceError = errorSummary(error);
}
result.exitedAfterForce = await waitForPidExit(result.pid, browserFreezePolicy.kill.graceMs, browserFreezePolicy.kill.pollIntervalMs);
}
result.ok = result.exitedAfterGrace || result.exitedAfterForce;
return result;
}
async function waitForPidExit(pid, timeoutMs, pollIntervalMs) {
const deadline = Date.now() + timeoutMs;
while (Date.now() <= deadline) {
if (!pidAlive(pid)) return true;
await sleep(pollIntervalMs);
}
return !pidAlive(pid);
}
function pidAlive(pid) {
try {
process.kill(pid, 0);
return true;
} catch {
return false;
}
}
function browserProcessSampleRef(sample) {
return {
ts: sample?.ts ?? null,
seq: sample?.seq ?? null,
sampleSeq: sample?.sampleSeq ?? null,
browserPid: sample?.browserPid ?? null,
totalRssMb: sample?.process?.totalRssMb ?? null,
maxProcessRssMb: sample?.process?.maxProcessRssMb ?? null,
totalRssGrowthMb: sample?.growth?.totalRssGrowthMb ?? null,
maxProcessRssGrowthMb: sample?.growth?.maxProcessRssGrowthMb ?? null,
valuesRedacted: true,
};
}
function browserPageMetricRef(pageMetric) {
const responsiveness = pageMetric?.responsiveness && typeof pageMetric.responsiveness === "object" ? pageMetric.responsiveness : {};
const cdp = pageMetric?.cdp && typeof pageMetric.cdp === "object" ? pageMetric.cdp : {};
const effectiveMemory = pageMetric?.effectiveMemory && typeof pageMetric.effectiveMemory === "object" ? pageMetric.effectiveMemory : {};
return {
pageRole: pageMetric?.pageRole ?? null,
pageId: pageMetric?.pageId ?? null,
pageEpoch: pageMetric?.pageEpoch ?? null,
timeoutMs: pageMetric?.timeoutMs ?? null,
responsivenessLatencyMs: responsiveness.latencyMs ?? null,
responsivenessTimeout: responsiveness.timeout === true,
cdpTimeoutCount: cdp.timeoutCount ?? null,
cdpErrorCount: cdp.errorCount ?? null,
effectiveHeapUsedMb: Number.isFinite(Number(effectiveMemory.effectiveHeapUsedMb)) ? Number(effectiveMemory.effectiveHeapUsedMb) : null,
effectiveJsHeapUsedMb: Number.isFinite(Number(effectiveMemory.effectiveJsHeapUsedMb)) ? Number(effectiveMemory.effectiveJsHeapUsedMb) : null,
heapUsedGrowthMb: Number.isFinite(Number(effectiveMemory.heapUsedGrowthMb)) ? Number(effectiveMemory.heapUsedGrowthMb) : null,
jsHeapUsedGrowthMb: Number.isFinite(Number(effectiveMemory.jsHeapUsedGrowthMb)) ? Number(effectiveMemory.jsHeapUsedGrowthMb) : null,
baselineCapturedAt: pageMetric?.baseline?.capturedAt ?? null,
valuesRedacted: true,
};
}
function browserProcessPid() {
try {
const childProcess = browser && typeof browser.process === "function" ? browser.process() : null;
const pid = Number(childProcess?.pid);
return Number.isFinite(pid) && pid > 0 ? Math.floor(pid) : null;
} catch {
return null;
}
}
async function collectChromiumProcessSummary(browserPid) {
const all = await readProcProcessTable();
const childrenByPpid = new Map();
for (const item of all) {
if (!Number.isFinite(item.ppid)) continue;
const list = childrenByPpid.get(item.ppid) || [];
list.push(item.pid);
childrenByPpid.set(item.ppid, list);
}
const roots = [process.pid, browserPid].filter((pid, index, items) => Number.isFinite(Number(pid)) && Number(pid) > 0 && items.indexOf(pid) === index).map((pid) => Number(pid));
const descendants = new Set(roots);
const queue = roots.slice();
while (queue.length > 0) {
const pid = queue.shift();
for (const child of childrenByPpid.get(pid) || []) {
if (descendants.has(child)) continue;
descendants.add(child);
queue.push(child);
}
}
const processes = all
.filter((item) => descendants.has(item.pid))
.map((item) => ({ ...item, role: classifyChromiumProcess(item) }))
.filter((item) => item.role)
.map((item) => ({
pid: item.pid,
ppid: item.ppid,
name: item.name || null,
role: item.role,
rssBytes: item.rssBytes,
vmSizeBytes: item.vmSizeBytes,
commandHash: item.cmdline ? sha256Text(item.cmdline) : null,
commandPreview: redactProcessCommandPreview(item.cmdline),
valuesRedacted: true,
}))
.sort((a, b) => Number(b.rssBytes || 0) - Number(a.rssBytes || 0));
const roles = {};
for (const item of processes) {
const role = item.role || "unknown";
const summary = roles[role] || { count: 0, rssBytes: 0, maxRssBytes: 0 };
summary.count += 1;
summary.rssBytes += Number(item.rssBytes || 0);
summary.maxRssBytes = Math.max(summary.maxRssBytes, Number(item.rssBytes || 0));
roles[role] = summary;
}
const totalRssBytes = processes.reduce((sum, item) => sum + Number(item.rssBytes || 0), 0);
const maxProcess = processes[0] || null;
return {
sampledRootPids: roots,
chromiumProcessCount: processes.length,
totalRssBytes,
totalRssMb: bytesToMb(totalRssBytes),
maxProcessRssBytes: maxProcess ? Number(maxProcess.rssBytes || 0) : 0,
maxProcessRssMb: maxProcess ? bytesToMb(maxProcess.rssBytes) : 0,
maxProcess,
roles,
processes: processes.slice(0, 20),
valuesRedacted: true,
};
}
async function readProcProcessTable() {
let entries = [];
try {
entries = await readdir("/proc");
} catch {
return [];
}
const numeric = entries.map((name) => Number(name)).filter((pid) => Number.isInteger(pid) && pid > 0);
const rows = await Promise.all(numeric.map((pid) => readOneProcProcess(pid).catch(() => null)));
return rows.filter(Boolean);
}
async function readOneProcProcess(pid) {
const [statText, statusText, cmdlineText] = await Promise.all([
readFile(path.join("/proc", String(pid), "stat"), "utf8").catch(() => ""),
readFile(path.join("/proc", String(pid), "status"), "utf8").catch(() => ""),
readFile(path.join("/proc", String(pid), "cmdline"), "utf8").catch(() => ""),
]);
if (!statText && !statusText) return null;
const ppid = procPpidFromStat(statText);
const name = procStatusField(statusText, "Name") || null;
const rssKb = procStatusKb(statusText, "VmRSS");
const vmSizeKb = procStatusKb(statusText, "VmSize");
return {
pid,
ppid,
name,
cmdline: String(cmdlineText || "").replace(/\0/gu, " ").replace(/\s+/gu, " ").trim(),
rssBytes: Number.isFinite(rssKb) ? rssKb * 1024 : 0,
vmSizeBytes: Number.isFinite(vmSizeKb) ? vmSizeKb * 1024 : 0,
};
}
function procPpidFromStat(value) {
const text = String(value || "");
const end = text.lastIndexOf(")");
if (end < 0) return null;
const parts = text.slice(end + 1).trim().split(/\s+/u);
const ppid = Number(parts[1]);
return Number.isFinite(ppid) ? ppid : null;
}
function procStatusField(value, key) {
const prefix = String(key || "") + ":";
for (const line of String(value || "").split(/\n/u)) {
if (line.startsWith(prefix)) return line.slice(prefix.length).trim();
}
return null;
}
function procStatusKb(value, key) {
const raw = procStatusField(value, key);
const match = String(raw || "").match(/^(\d+)\s+kB$/u);
return match ? Number(match[1]) : null;
}
function classifyChromiumProcess(item) {
const cmdline = String(item?.cmdline || "");
const combined = (cmdline + " " + String(item?.name || "")).toLowerCase();
if (!/(?:chromium|chrome|headless_shell)/u.test(combined)) return null;
if (/--type=renderer\b/u.test(cmdline)) return "renderer";
if (/--type=gpu-process\b/u.test(cmdline)) return "gpu";
if (/--type=utility\b/u.test(cmdline)) return "utility";
if (/--type=zygote\b/u.test(cmdline)) return "zygote";
if (/--type=broker\b/u.test(cmdline)) return "broker";
if (/--type=/u.test(cmdline)) return "other";
return "browser";
}
function redactProcessCommandPreview(value) {
const text = String(value || "");
if (!text) return null;
const parts = text.split(/\s+/u).slice(0, 18).map((part) => {
if (/--(?:proxy|token|secret|password|cookie|auth|key)[^=]*=/iu.test(part)) return part.replace(/=.*/u, "=[redacted]");
return part.replace(/:\/\/[^/@\s]+@/u, "://[redacted]@");
});
return truncate(parts.join(" "), 260);
}
function updateBrowserProcessHistory(tsMs, processSummary) {
const windowMs = Math.max(1000, Number(alertThresholds.browserRssGrowthWindowMs) || 30000);
const totalRssBytes = Number(processSummary?.totalRssBytes || 0);
const maxProcessRssBytes = Number(processSummary?.maxProcessRssBytes || 0);
browserProcessHistory.push({ tsMs, totalRssBytes, maxProcessRssBytes });
const retentionMs = Math.max(windowMs * 3, 180000);
while (browserProcessHistory.length > 0 && tsMs - browserProcessHistory[0].tsMs > retentionMs) browserProcessHistory.shift();
const windowStartMs = tsMs - windowMs;
const candidates = browserProcessHistory.filter((item) => item.tsMs >= windowStartMs && item.tsMs <= tsMs);
const baseline = candidates[0] || browserProcessHistory[0] || null;
const totalRssGrowthBytes = baseline ? totalRssBytes - Number(baseline.totalRssBytes || 0) : 0;
const maxProcessRssGrowthBytes = baseline ? maxProcessRssBytes - Number(baseline.maxProcessRssBytes || 0) : 0;
return {
windowMs,
baselineAt: baseline ? new Date(baseline.tsMs).toISOString() : null,
baselineTotalRssBytes: baseline ? baseline.totalRssBytes : null,
baselineMaxProcessRssBytes: baseline ? baseline.maxProcessRssBytes : null,
totalRssGrowthBytes,
totalRssGrowthMb: bytesToMb(totalRssGrowthBytes),
maxProcessRssGrowthBytes,
maxProcessRssGrowthMb: bytesToMb(maxProcessRssGrowthBytes),
valuesRedacted: true,
};
}
async function collectBrowserPageRuntimeMetrics(targetPage, { pageRole, targetPageId, pageEpoch }) {
const timeoutMs = Math.max(1000, Math.floor(Number(alertThresholds.playwrightResponsivenessRedMs) || 5000));
const startedAtMs = Date.now();
let session = null;
const result = {
pageRole,
pageId: targetPageId,
pageEpoch: Number.isFinite(Number(pageEpoch)) ? Number(pageEpoch) : 0,
url: pageUrl(targetPage),
timeoutMs,
responsiveness: null,
cdp: { timeoutCount: 0, errorCount: 0, calls: [] },
valuesRedacted: true,
};
try {
session = await withHardTimeout(targetPage.context().newCDPSession(targetPage), timeoutMs, "newCDPSession exceeded " + timeoutMs + "ms");
const enable = await timedCdpSend(session, "Performance.enable", {}, timeoutMs);
if (enable.ok !== true) result.cdp.calls.push({ method: "Performance.enable", ...enable });
result.responsiveness = await timedCdpSend(session, "Runtime.evaluate", { expression: "1", returnByValue: true }, timeoutMs);
result.cdp.calls.push({ method: "Runtime.evaluate", ...result.responsiveness });
const performance = await timedCdpSend(session, "Performance.getMetrics", {}, timeoutMs);
result.cdp.calls.push({ method: "Performance.getMetrics", ...performance });
result.performance = performance.value;
const heap = await timedCdpSend(session, "Runtime.getHeapUsage", {}, timeoutMs);
result.cdp.calls.push({ method: "Runtime.getHeapUsage", ...heap });
result.heapUsage = heap.value;
const domCounters = await timedCdpSend(session, "Memory.getDOMCounters", {}, timeoutMs);
result.cdp.calls.push({ method: "Memory.getDOMCounters", ...domCounters });
result.domCounters = domCounters.value;
result.cdp.timeoutCount = result.cdp.calls.filter((item) => item.timeout === true).length;
result.cdp.errorCount = result.cdp.calls.filter((item) => item.ok !== true).length;
} catch (error) {
result.sessionError = errorSummary(error);
result.cdp.timeoutCount = isTimeoutErrorMessage(error?.message) ? 1 : 0;
result.cdp.errorCount = 1;
} finally {
result.latencyMs = Date.now() - startedAtMs;
applyBrowserPageRuntimeBaseline(result);
if (session) await withHardTimeout(session.detach(), 1000, "CDP session detach exceeded 1000ms").catch(() => {});
}
return result;
}
function applyBrowserPageRuntimeBaseline(result) {
const key = [result.pageRole || "unknown", result.pageId || "unknown", Number.isFinite(Number(result.pageEpoch)) ? Number(result.pageEpoch) : 0].join(":");
const current = browserPageRuntimeMemorySnapshot(result);
const existing = browserPageRuntimeBaselines.get(key);
if (!existing && current) browserPageRuntimeBaselines.set(key, { ...current, capturedAt: new Date().toISOString(), source: "first-page-runtime-sample", valuesRedacted: true });
const baseline = browserPageRuntimeBaselines.get(key) || null;
result.baseline = baseline ? {
capturedAt: baseline.capturedAt,
source: baseline.source,
heapUsedMb: baseline.heapUsedMb,
jsHeapUsedMb: baseline.jsHeapUsedMb,
domNodes: baseline.domNodes,
valuesRedacted: true,
} : null;
result.effectiveMemory = browserPageEffectiveMemory(current, baseline);
}
function browserPageRuntimeMemorySnapshot(result) {
const heapUsedBytes = Number(result?.heapUsage?.usedSize);
const metrics = result?.performance?.metrics && typeof result.performance.metrics === "object" ? result.performance.metrics : {};
const jsHeapUsedBytes = Number(metrics.JSHeapUsedSize);
const domNodes = Number(result?.domCounters?.nodes ?? metrics.Nodes);
if (!Number.isFinite(heapUsedBytes) && !Number.isFinite(jsHeapUsedBytes) && !Number.isFinite(domNodes)) return null;
return {
heapUsedBytes: Number.isFinite(heapUsedBytes) ? heapUsedBytes : null,
heapUsedMb: Number.isFinite(heapUsedBytes) ? bytesToMb(heapUsedBytes) : null,
jsHeapUsedBytes: Number.isFinite(jsHeapUsedBytes) ? jsHeapUsedBytes : null,
jsHeapUsedMb: Number.isFinite(jsHeapUsedBytes) ? bytesToMb(jsHeapUsedBytes) : null,
domNodes: Number.isFinite(domNodes) ? domNodes : null,
valuesRedacted: true,
};
}
function browserPageEffectiveMemory(current, baseline) {
if (!current) return { available: false, baselineAvailable: Boolean(baseline), valuesRedacted: true };
const heapUsedGrowthBytes = numericDelta(current.heapUsedBytes, baseline?.heapUsedBytes);
const jsHeapUsedGrowthBytes = numericDelta(current.jsHeapUsedBytes, baseline?.jsHeapUsedBytes);
const domNodesGrowth = numericDelta(current.domNodes, baseline?.domNodes);
return {
available: true,
baselineAvailable: Boolean(baseline),
heapUsedMb: current.heapUsedMb,
jsHeapUsedMb: current.jsHeapUsedMb,
effectiveHeapUsedMb: Number.isFinite(heapUsedGrowthBytes) ? bytesToMb(heapUsedGrowthBytes) : current.heapUsedMb,
effectiveJsHeapUsedMb: Number.isFinite(jsHeapUsedGrowthBytes) ? bytesToMb(jsHeapUsedGrowthBytes) : current.jsHeapUsedMb,
heapUsedGrowthMb: Number.isFinite(heapUsedGrowthBytes) ? bytesToMb(heapUsedGrowthBytes) : null,
jsHeapUsedGrowthMb: Number.isFinite(jsHeapUsedGrowthBytes) ? bytesToMb(jsHeapUsedGrowthBytes) : null,
domNodes: current.domNodes,
domNodesGrowth: Number.isFinite(domNodesGrowth) ? domNodesGrowth : null,
valuesRedacted: true,
};
}
function numericDelta(current, baseline) {
const value = Number(current);
const base = Number(baseline);
if (!Number.isFinite(value) || !Number.isFinite(base)) return null;
return value - base;
}
function browserPageRuntimeMetricError(pageRole, targetPageId, pageEpoch, error) {
return {
pageRole,
pageId: targetPageId,
pageEpoch: Number.isFinite(Number(pageEpoch)) ? Number(pageEpoch) : 0,
url: null,
timeoutMs: Math.max(1000, Math.floor(Number(alertThresholds.playwrightResponsivenessRedMs) || 5000)),
responsiveness: { ok: false, timeout: isTimeoutErrorMessage(error?.message), error: errorSummary(error), valuesRedacted: true },
cdp: { timeoutCount: isTimeoutErrorMessage(error?.message) ? 1 : 0, errorCount: 1, calls: [] },
valuesRedacted: true,
};
}
async function timedCdpSend(session, method, params, timeoutMs) {
const startedAtMs = Date.now();
try {
const value = await withHardTimeout(session.send(method, params || {}), timeoutMs, method + " exceeded " + timeoutMs + "ms");
return { ok: true, timeout: false, latencyMs: Date.now() - startedAtMs, value: compactCdpValue(method, value), valuesRedacted: true };
} catch (error) {
return { ok: false, timeout: isTimeoutErrorMessage(error?.message), latencyMs: Date.now() - startedAtMs, error: errorSummary(error), valuesRedacted: true };
}
}
function compactCdpValue(method, value) {
if (!value || typeof value !== "object") return value ?? null;
if (method === "Performance.getMetrics") {
const wanted = new Set(["Timestamp", "Documents", "Frames", "JSEventListeners", "Nodes", "LayoutCount", "RecalcStyleCount", "LayoutDuration", "RecalcStyleDuration", "ScriptDuration", "TaskDuration", "JSHeapUsedSize", "JSHeapTotalSize"]);
const metrics = {};
for (const item of Array.isArray(value.metrics) ? value.metrics : []) {
if (wanted.has(item?.name)) metrics[item.name] = Number.isFinite(Number(item?.value)) ? Number(item.value) : null;
}
return { metricCount: Array.isArray(value.metrics) ? value.metrics.length : 0, metrics, valuesRedacted: true };
}
if (method === "Runtime.getHeapUsage") {
return {
usedSize: Number.isFinite(Number(value.usedSize)) ? Number(value.usedSize) : null,
totalSize: Number.isFinite(Number(value.totalSize)) ? Number(value.totalSize) : null,
embedderHeapUsedSize: Number.isFinite(Number(value.embedderHeapUsedSize)) ? Number(value.embedderHeapUsedSize) : null,
valuesRedacted: true,
};
}
if (method === "Memory.getDOMCounters") {
return {
documents: Number.isFinite(Number(value.documents)) ? Number(value.documents) : null,
nodes: Number.isFinite(Number(value.nodes)) ? Number(value.nodes) : null,
jsEventListeners: Number.isFinite(Number(value.jsEventListeners)) ? Number(value.jsEventListeners) : null,
valuesRedacted: true,
};
}
if (method === "Runtime.evaluate") {
return { resultType: value.result?.type ?? null, unserializableValue: value.result?.unserializableValue ?? null, exceptionDetails: value.exceptionDetails ? { text: truncate(value.exceptionDetails.text || "", 200), valuesRedacted: true } : null, valuesRedacted: true };
}
return { valuesRedacted: true };
}
function isTimeoutErrorMessage(value) {
return /timeout|timed\s*out|exceeded\s+\d+\s*ms/iu.test(String(value || ""));
}
function bytesToMb(value) {
const numeric = Number(value);
if (!Number.isFinite(numeric)) return null;
return Number((numeric / 1024 / 1024).toFixed(1));
}
function attachPassiveListeners(targetPage, pageRole = "control", targetPageId = pageId) {
void installPagePerformanceProbe(targetPage, pageRole, targetPageId)
.catch((error) => appendJsonl(files.errors, eventRecord("performance-probe-install-error", { pageRole, pageId: targetPageId, error: errorSummary(error), valuesRedacted: true })));
targetPage.on("request", (request) => {
const webPerformancePayload = summarizeWebPerformanceRequestPayload(request);
void appendJsonl(files.network, eventRecord("request", {
pageRole,
pageId: targetPageId,
observerInitiated: false,
commandId: activeCommandId,
method: request.method(),
url: safeUrl(request.url()),
resourceType: request.resourceType(),
frameUrl: safeFrameUrl(request.frame()),
...(webPerformancePayload ? { webPerformancePayload } : {}),
}));
});
targetPage.on("response", (response) => {
const request = response.request();
const base = {
pageRole,
pageId: targetPageId,
sampleSeq,
observerInitiated: false,
commandId: activeCommandId,
method: request.method(),
url: safeUrl(response.url()),
resourceType: request.resourceType(),
status: response.status(),
statusText: response.statusText(),
fromServiceWorker: response.fromServiceWorker(),
};
void (async () => {
const bodyFields = await summarizeWorkbenchResponseBody(response, request);
await appendJsonl(files.network, eventRecord("response", { ...base, ...bodyFields }));
})().catch((error) => appendJsonl(files.errors, eventRecord("response-body-summary-error", {
pageRole,
pageId: targetPageId,
sampleSeq,
commandId: activeCommandId,
method: request.method(),
url: safeUrl(response.url()),
error: errorSummary(error),
valuesRedacted: true
})));
});
targetPage.on("requestfailed", (request) => {
void appendJsonl(files.network, eventRecord("requestfailed", {
pageRole,
pageId: targetPageId,
observerInitiated: false,
commandId: activeCommandId,
method: request.method(),
url: safeUrl(request.url()),
resourceType: request.resourceType(),
failure: request.failure()?.errorText ?? null,
}));
});
targetPage.on("console", (message) => {
void appendJsonl(files.console, eventRecord("console", { pageRole, pageId: targetPageId, type: message.type(), text: truncate(message.text(), 1000), location: message.location() }));
});
targetPage.on("pageerror", (error) => {
void appendJsonl(files.errors, eventRecord("pageerror", { pageRole, pageId: targetPageId, error: errorSummary(error) }));
});
targetPage.on("crash", () => {
void appendJsonl(files.errors, eventRecord("page-crash", { pageRole, pageId: targetPageId }));
});
targetPage.on("close", () => {
void appendJsonl(files.control, eventRecord("continuity-break", { pageRole, pageId: targetPageId, reason: "page-closed" }));
});
}
function summarizeWebPerformanceRequestPayload(request) {
if (!request || request.method() !== "POST" || !isSameOriginWebPerformanceRequestUrl(request.url())) return null;
let raw = null;
try {
raw = request.postData();
} catch (error) {
return {
captureStatus: "post-data-read-failed",
parseStatus: "post-data-read-failed",
byteCount: null,
byteLimit: webPerformanceRequestBodyMaxBytes,
error: errorSummary(error),
eventCount: null,
events: [],
valuesRedacted: true,
};
}
if (raw === null || raw === undefined || raw === "") {
return {
captureStatus: "missing-body",
parseStatus: "missing-body",
byteCount: 0,
byteLimit: webPerformanceRequestBodyMaxBytes,
eventCount: 0,
events: [],
valuesRedacted: true,
};
}
const byteCount = Buffer.byteLength(raw, "utf8");
const bodyHash = sha256Text(raw);
if (byteCount > webPerformanceRequestBodyMaxBytes) {
return {
captureStatus: "skipped-over-limit",
parseStatus: "not-parsed-over-limit",
byteCount,
byteLimit: webPerformanceRequestBodyMaxBytes,
bodyHash,
truncated: true,
eventCount: null,
events: [],
valuesRedacted: true,
};
}
try {
const parsed = JSON.parse(raw);
const schemaVersion = typeof parsed?.schemaVersion === "string" ? parsed.schemaVersion : null;
if (schemaVersion !== "hwlab-web-performance-v2") {
return {
captureStatus: "captured",
parseStatus: "unsupported-schema",
schemaVersion,
byteCount,
byteLimit: webPerformanceRequestBodyMaxBytes,
bodyHash,
eventCount: Array.isArray(parsed?.events) ? parsed.events.length : null,
events: [],
valuesRedacted: true,
};
}
const events = (Array.isArray(parsed.events) ? parsed.events : []).slice(0, 80).map(compactWebPerformancePayloadEvent).filter(Boolean);
return {
captureStatus: "captured",
parseStatus: "parsed",
schemaVersion,
byteCount,
byteLimit: webPerformanceRequestBodyMaxBytes,
bodyHash,
truncated: false,
eventCount: Array.isArray(parsed.events) ? parsed.events.length : 0,
storedEventCount: events.length,
events,
valuesRedacted: true,
};
} catch (error) {
return {
captureStatus: "captured",
parseStatus: "invalid-json",
byteCount,
byteLimit: webPerformanceRequestBodyMaxBytes,
bodyHash,
parseError: truncate(error?.message || String(error), 180),
eventCount: null,
events: [],
valuesRedacted: true,
};
}
}
function isSameOriginWebPerformanceRequestUrl(value) {
try {
const url = new URL(String(value || ""), baseUrl);
return url.origin === baseUrl && url.pathname === "/v1/web-performance";
} catch {
return false;
}
}
function compactWebPerformancePayloadEvent(event) {
if (!event || typeof event !== "object") return null;
const detail = firstObject(event.detail, event.details, event.payload, event.data, event.metrics);
const read = (key) => event?.[key] ?? detail?.[key] ?? null;
const diagnosticCode = compactString(read("diagnosticCode") ?? read("code") ?? read("name"), 96);
const reason = compactString(read("reason"), 96);
const module = compactString(read("module"), 96);
const eventType = compactString(read("eventType") ?? read("type") ?? read("kind"), 96);
const traceId = compactTraceId(read("traceId"));
const sessionId = compactString(read("sessionId"), 120);
const replacedByKey = compactScalar(read("replacedByKey"));
const eventId = compactString(read("eventId") ?? read("id"), 120);
return {
ts: compactString(read("ts") ?? read("timestamp") ?? read("time"), 64),
eventType,
diagnosticCode,
reason,
module,
traceId,
sessionIdHash: sessionId ? sha256Text(sessionId) : null,
eventIdHash: eventId ? sha256Text(eventId) : null,
eventCount: numberOrNull(read("eventCount")),
deliveredCount: numberOrNull(read("deliveredCount")),
chunkCount: numberOrNull(read("chunkCount")),
flushDurationMs: numberOrNull(read("flushDurationMs")),
droppedCount: numberOrNull(read("droppedCount")),
maxItemsPerChunk: numberOrNull(read("maxItemsPerChunk")),
maxChunkMs: numberOrNull(read("maxChunkMs")),
replacedByKey: typeof replacedByKey === "boolean" || typeof replacedByKey === "number" ? replacedByKey : null,
replacedByKeyHash: typeof replacedByKey === "string" ? sha256Text(replacedByKey) : null,
valuesRedacted: true,
};
}
function firstObject(...values) {
for (const value of values) if (value && typeof value === "object" && !Array.isArray(value)) return value;
return {};
}
function compactString(value, limit) {
if (value === null || value === undefined) return null;
return truncate(String(value), limit);
}
function compactTraceId(value) {
const text = String(value || "");
return /^trc_[A-Za-z0-9_-]+$/u.test(text) ? text : null;
}
function compactScalar(value) {
if (value === null || value === undefined) return null;
if (typeof value === "boolean") return value;
const numeric = Number(value);
if (Number.isFinite(numeric) && String(value).trim() !== "") return numeric;
return truncate(String(value), 120);
}
`;
}