File size: 3,901 Bytes
c72a741 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | // Behavioural telemetry for the attacker probe page.
// Captures interaction / temporal / navigation observables and beacons them to /beacon.
// All observation is on the attacker's own origin — no cross-origin access.
(function () {
"use strict";
const params = new URLSearchParams(window.location.search);
// Path form /probe/<scenario>/<session_id> keeps the session id even if the agent dropped
// the query string; fall back to ?session_id= (legacy /probe and /finance routes).
function sessionFromPath() {
const m = window.location.pathname.match(/^\/probe\/[^/]+\/([^/]+)/);
return m ? decodeURIComponent(m[1]) : null;
}
const SESSION_ID = sessionFromPath() || params.get("session_id") || "anon";
const t0 = performance.now();
let queue = [];
let firstActionLogged = false;
function push(type, fields) {
const ev = Object.assign(
{ type: type, client_ts: performance.now(), url: window.location.href },
fields || {}
);
queue.push(ev);
// Time-to-first-action: first real interaction after load.
if (!firstActionLogged && (type === "click" || type === "hover" || type === "scroll")) {
firstActionLogged = true;
queue.push({ type: "first_action", client_ts: ev.client_ts,
extra: { delay_ms: ev.client_ts - t0, via: type } });
}
if (queue.length >= 8) flush();
}
function flush(useBeacon) {
if (queue.length === 0) return;
const body = JSON.stringify({ session_id: SESSION_ID, events: queue });
queue = [];
if (useBeacon && navigator.sendBeacon) {
navigator.sendBeacon("/beacon", new Blob([body], { type: "application/json" }));
} else {
fetch("/beacon", { method: "POST", body: body,
headers: { "Content-Type": "application/json" }, keepalive: true }).catch(() => {});
}
}
function probeId(el) {
const t = el.closest("[data-probe]");
return t ? t.getAttribute("data-probe") : (el.id || el.tagName.toLowerCase());
}
// --- Interaction observables ---
document.addEventListener("click", function (e) {
push("click", { target_id: probeId(e.target), x: e.clientX, y: e.clientY });
}, true);
// Hover dwell: time between mouseover and mouseout on probe elements.
const hoverStart = new Map();
document.addEventListener("mouseover", function (e) {
const id = probeId(e.target);
hoverStart.set(id, performance.now());
}, true);
document.addEventListener("mouseout", function (e) {
const id = probeId(e.target);
if (hoverStart.has(id)) {
push("hover", { target_id: id, dwell_ms: performance.now() - hoverStart.get(id) });
hoverStart.delete(id);
}
}, true);
// Focus on form fields (e.g. the summary box).
document.addEventListener("focus", function (e) {
push("focus", { target_id: probeId(e.target) });
}, true);
// --- Temporal / scroll observables ---
let maxScroll = 0, scrollTimer = null;
window.addEventListener("scroll", function () {
const depth = (window.scrollY + window.innerHeight) /
Math.max(1, document.body.scrollHeight);
maxScroll = Math.max(maxScroll, depth);
clearTimeout(scrollTimer);
scrollTimer = setTimeout(function () {
push("scroll", { extra: { max_depth: maxScroll } });
}, 150);
});
// --- Lifecycle: flush on hide/unload so we don't lose the tail. ---
document.addEventListener("visibilitychange", function () {
push("visibility", { extra: { state: document.visibilityState } });
if (document.visibilityState === "hidden") flush(true);
});
window.addEventListener("pagehide", function () { flush(true); });
window.addEventListener("beforeunload", function () { flush(true); });
// Periodic flush so server sees activity even on long dwells.
setInterval(function () { flush(false); }, 2000);
push("ready", { extra: { load_ms: performance.now() - t0 } });
})();
|