rebrowser-playwright-core
Version:
A drop-in replacement for playwright-core patched with rebrowser-patches. It allows to pass modern automation detection tests.
66 lines (64 loc) • 2.28 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.pollAgainstDeadline = pollAgainstDeadline;
exports.raceAgainstDeadline = raceAgainstDeadline;
var _ = require("./");
/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
async function raceAgainstDeadline(cb, deadline) {
let timer;
return Promise.race([cb().then(result => {
return {
result,
timedOut: false
};
}), new Promise(resolve => {
const kMaxDeadline = 2147483647; // 2^31-1
const timeout = (deadline || kMaxDeadline) - (0, _.monotonicTime)();
timer = setTimeout(() => resolve({
timedOut: true
}), timeout);
})]).finally(() => {
clearTimeout(timer);
});
}
async function pollAgainstDeadline(callback, deadline, pollIntervals = [100, 250, 500, 1000]) {
var _pollIntervals$pop;
const lastPollInterval = (_pollIntervals$pop = pollIntervals.pop()) !== null && _pollIntervals$pop !== void 0 ? _pollIntervals$pop : 1000;
let lastResult;
const wrappedCallback = () => Promise.resolve().then(callback);
while (true) {
var _shift;
const time = (0, _.monotonicTime)();
if (deadline && time >= deadline) break;
const received = await raceAgainstDeadline(wrappedCallback, deadline);
if (received.timedOut) break;
lastResult = received.result.result;
if (!received.result.continuePolling) return {
result: lastResult,
timedOut: false
};
const interval = (_shift = pollIntervals.shift()) !== null && _shift !== void 0 ? _shift : lastPollInterval;
if (deadline && deadline <= (0, _.monotonicTime)() + interval) break;
await new Promise(x => setTimeout(x, interval));
}
return {
timedOut: true,
result: lastResult
};
}