chrome-aws-lambda
Version:
Chromium Binary for AWS Lambda and Google Cloud Functions
167 lines • 7.37 kB
JavaScript
;
module.exports = async function (page) {
const handler = () => {
var _a, _b;
let alpha = Date.now();
let delta = Math.floor(500 * Math.random());
if (window.chrome === undefined) {
Object.defineProperty(window, 'chrome', {
configurable: false,
enumerable: true,
value: {},
writable: true,
});
}
/**
* https://github.com/berstend/puppeteer-extra/blob/master/packages/puppeteer-extra-plugin-stealth/evasions/chrome.app/index.js
*/
if (window.chrome.app === undefined) {
const InvocationError = (callback) => {
/**
* Truncates every line of the stack trace (with the exception of the first), until `search` is found.
*/
const truncateStackTrace = (error, search) => {
const stack = error.stack.split('\n');
const index = stack.findIndex((value) => value.trim().startsWith(search));
if (index > 0) {
error.stack = [stack[0], ...stack.slice(index + 1)].join('\n');
}
return error;
};
return truncateStackTrace(new TypeError(`Error in invocation of app.${callback}()`), `at ${callback} (eval at <anonymous>`);
};
Object.defineProperty(window.chrome, 'app', {
value: {
InstallState: {
DISABLED: 'disabled',
INSTALLED: 'installed',
NOT_INSTALLED: 'not_installed',
},
RunningState: {
CANNOT_RUN: 'cannot_run',
READY_TO_RUN: 'ready_to_run',
RUNNING: 'running',
},
get isInstalled() {
return false;
},
getDetails: function getDetails() {
if (arguments.length > 0) {
throw InvocationError('getDetails');
}
return null;
},
getIsInstalled: function getIsInstalled() {
if (arguments.length > 0) {
throw InvocationError('getIsInstalled');
}
return false;
},
runningState: function runningState() {
if (arguments.length > 0) {
throw InvocationError('runningState');
}
return 'cannot_run';
},
},
});
}
let timing = {
navigationStart: alpha + 1 * delta,
domContentLoadedEventEnd: alpha + 4 * delta,
responseStart: alpha + 2 * delta,
loadEventEnd: alpha + 5 * delta,
};
if (((_a = window.performance) === null || _a === void 0 ? void 0 : _a.timing) !== undefined) {
timing = window.performance.timing;
}
/**
* https://github.com/berstend/puppeteer-extra/tree/master/packages/puppeteer-extra-plugin-stealth/evasions/chrome.csi
*/
if (window.chrome.csi === undefined) {
Object.defineProperty(window.chrome, 'csi', {
value: function csi() {
return {
startE: timing.navigationStart,
onloadT: timing.domContentLoadedEventEnd,
pageT: Date.now() - timing.navigationStart + Math.random().toFixed(3),
tran: 15,
};
},
});
}
/**
* https://github.com/berstend/puppeteer-extra/tree/master/packages/puppeteer-extra-plugin-stealth/evasions/chrome.loadTimes
*/
if (window.chrome.loadTimes === undefined) {
let navigation = {
nextHopProtocol: 'h2',
startTime: 3 * delta,
type: 'other',
};
if (typeof ((_b = window.performance) === null || _b === void 0 ? void 0 : _b.getEntriesByType) === 'function') {
let entries = {
navigation: window.performance.getEntriesByType('navigation'),
paint: window.performance.getEntriesByType('paint'),
};
if (entries.navigation.length > 0) {
navigation = entries.navigation.shift();
}
if (entries.paint.length > 0) {
navigation.startTime = entries.paint.shift().startTime;
}
}
Object.defineProperty(window.chrome, 'loadTimes', {
value: function loadTimes() {
return {
get commitLoadTime() {
return timing.responseStart / 1000;
},
get connectionInfo() {
return navigation.nextHopProtocol;
},
get finishDocumentLoadTime() {
return timing.domContentLoadedEventEnd / 1000;
},
get finishLoadTime() {
return timing.loadEventEnd / 1000;
},
get firstPaintAfterLoadTime() {
return 0;
},
get firstPaintTime() {
var _a, _b;
return parseFloat(((navigation.startTime + ((_b = (_a = window.performance) === null || _a === void 0 ? void 0 : _a.timeOrigin) !== null && _b !== void 0 ? _b : timing.navigationStart)) / 1000).toFixed(3));
},
get navigationType() {
return navigation.type;
},
get npnNegotiatedProtocol() {
return ['h2', 'hq'].includes(navigation.nextHopProtocol) ? navigation.nextHopProtocol : 'unknown';
},
get requestTime() {
return timing.navigationStart / 1000;
},
get startLoadTime() {
return timing.navigationStart / 1000;
},
get wasAlternateProtocolAvailable() {
return false;
},
get wasFetchedViaSpdy() {
return ['h2', 'hq'].includes(navigation.nextHopProtocol);
},
get wasNpnNegotiated() {
return ['h2', 'hq'].includes(navigation.nextHopProtocol);
},
};
},
});
}
;
};
await page.evaluate(handler);
await page.evaluateOnNewDocument(handler);
return page;
};
//# sourceMappingURL=chrome.js.map