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thePR0M3TH3ANandClaude Opus 4.8
35c4e68cde
Headless Playwright probes that reproduce the real login path via a fake window.nostr extension (which loginWithNsec bypasses) and measure steady-state extension-call and relay-REQ rates: - nip07-heat.mjs, req-capture.mjs, ws-lifecycle.mjs, loopc-capture.mjs, etc. Plus js/devReqMonitor.js: a localhost-only WebSocket REQ-rate monitor that warns in-console when relay traffic spikes, naming the storming kinds — used to capture the real-environment storm the mock-relay harness could not see. Removable once the refactor lands. Co-Authored-By: Claude Opus 4.8 <[email protected]>
61 lines
2.3 KiB
JavaScript
61 lines
2.3 KiB
JavaScript
// Capture the JS call stack at the moment each REQ frame is sent, to pinpoint
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// the exact code re-issuing subscriptions in a loop. Overrides WebSocket.send
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// via an init script (runs before app code), tags each REQ with a stack, and
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// aggregates by stack signature.
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//
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// Usage: node scripts/perf/req-stack-capture.mjs [seconds]
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import { chromium } from "playwright";
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import { randomBytes } from "node:crypto";
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const seconds = Number(process.argv[2] || 10);
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const url = "http://localhost:3000/?__test__=1";
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const hexKey = randomBytes(32).toString("hex");
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const browser = await chromium.launch({ headless: true });
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const ctx = await browser.newContext();
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await ctx.addInitScript(() => {
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const origSend = WebSocket.prototype.send;
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window.__reqStacks = window.__reqStacks || {};
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WebSocket.prototype.send = function (data) {
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try {
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if (typeof data === "string" && data.startsWith('["REQ"')) {
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const stack = new Error().stack || "";
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// Keep app frames only; drop the wrapper + node_modules noise.
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const lines = stack
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.split("\n")
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.slice(2)
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.map((l) => l.trim())
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.filter((l) => l.includes("/js/"))
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.map((l) => l.replace(/.*\/js\//, "js/").replace(/:\d+:\d+\)?$/, ""))
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.slice(0, 4);
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const sig = lines.join(" <- ") || "(no app frames)";
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window.__reqStacks[sig] = (window.__reqStacks[sig] || 0) + 1;
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}
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} catch {}
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return origSend.apply(this, arguments);
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};
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});
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const page = await ctx.newPage();
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await page.goto(url, { waitUntil: "domcontentloaded", timeout: 30000 });
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try {
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await page.waitForFunction(() => !!window.__bitvidTest__?.loginWithNsec, { timeout: 15000 });
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await page.evaluate((k) => window.__bitvidTest__.loginWithNsec(k), hexKey);
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} catch (e) {
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console.log("login error:", e.message);
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}
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await page.evaluate(() => { window.__reqStacks = {}; });
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await page.waitForTimeout(seconds * 1000);
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const stacks = await page.evaluate(() => window.__reqStacks);
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await browser.close();
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const sorted = Object.entries(stacks).sort((a, b) => b[1] - a[1]);
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console.log(`\n=== REQ call-site stacks (${seconds}s) ===\n`);
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for (const [sig, n] of sorted.slice(0, 12)) {
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console.log(`${String(n).padStart(5)} (${(n / seconds).toFixed(1)}/s)`);
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console.log(` ${sig}\n`);
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}
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