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"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.helper = exports.debugError = void 0;
/**
* Copyright 2017 Google Inc. All rights reserved.
*
* 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.
*/
const Errors_js_1 = require("./Errors.js");
const Debug_js_1 = require("./Debug.js");
const assert_js_1 = require("./assert.js");
const environment_js_1 = require("../environment.js");
exports.debugError = Debug_js_1.debug('puppeteer:error');
function getExceptionMessage(exceptionDetails) {
if (exceptionDetails.exception)
return (exceptionDetails.exception.description || exceptionDetails.exception.value);
let message = exceptionDetails.text;
if (exceptionDetails.stackTrace) {
for (const callframe of exceptionDetails.stackTrace.callFrames) {
const location = callframe.url +
':' +
callframe.lineNumber +
':' +
callframe.columnNumber;
const functionName = callframe.functionName || '<anonymous>';
message += `\n at ${functionName} (${location})`;
}
}
return message;
}
function valueFromRemoteObject(remoteObject) {
assert_js_1.assert(!remoteObject.objectId, 'Cannot extract value when objectId is given');
if (remoteObject.unserializableValue) {
if (remoteObject.type === 'bigint' && typeof BigInt !== 'undefined')
return BigInt(remoteObject.unserializableValue.replace('n', ''));
switch (remoteObject.unserializableValue) {
case '-0':
return -0;
case 'NaN':
return NaN;
case 'Infinity':
return Infinity;
case '-Infinity':
return -Infinity;
default:
throw new Error('Unsupported unserializable value: ' +
remoteObject.unserializableValue);
}
}
return remoteObject.value;
}
async function releaseObject(client, remoteObject) {
if (!remoteObject.objectId)
return;
await client
.send('Runtime.releaseObject', { objectId: remoteObject.objectId })
.catch((error) => {
// Exceptions might happen in case of a page been navigated or closed.
// Swallow these since they are harmless and we don't leak anything in this case.
exports.debugError(error);
});
}
function addEventListener(emitter, eventName, handler) {
emitter.on(eventName, handler);
return { emitter, eventName, handler };
}
function removeEventListeners(listeners) {
for (const listener of listeners)
listener.emitter.removeListener(listener.eventName, listener.handler);
listeners.length = 0;
}
function isString(obj) {
return typeof obj === 'string' || obj instanceof String;
}
function isNumber(obj) {
return typeof obj === 'number' || obj instanceof Number;
}
async function waitForEvent(emitter, eventName, predicate, timeout, abortPromise) {
let eventTimeout, resolveCallback, rejectCallback;
const promise = new Promise((resolve, reject) => {
resolveCallback = resolve;
rejectCallback = reject;
});
const listener = addEventListener(emitter, eventName, (event) => {
if (!predicate(event))
return;
resolveCallback(event);
});
if (timeout) {
eventTimeout = setTimeout(() => {
rejectCallback(new Errors_js_1.TimeoutError('Timeout exceeded while waiting for event'));
}, timeout);
}
function cleanup() {
removeEventListeners([listener]);
clearTimeout(eventTimeout);
}
const result = await Promise.race([promise, abortPromise]).then((r) => {
cleanup();
return r;
}, (error) => {
cleanup();
throw error;
});
if (result instanceof Error)
throw result;
return result;
}
function evaluationString(fun, ...args) {
if (isString(fun)) {
assert_js_1.assert(args.length === 0, 'Cannot evaluate a string with arguments');
return fun;
}
function serializeArgument(arg) {
if (Object.is(arg, undefined))
return 'undefined';
return JSON.stringify(arg);
}
return `(${fun})(${args.map(serializeArgument).join(',')})`;
}
function pageBindingInitString(type, name) {
function addPageBinding(type, bindingName) {
/* Cast window to any here as we're about to add properties to it
* via win[bindingName] which TypeScript doesn't like.
*/
const win = window;
const binding = win[bindingName];
win[bindingName] = (...args) => {
const me = window[bindingName];
let callbacks = me.callbacks;
if (!callbacks) {
callbacks = new Map();
me.callbacks = callbacks;
}
const seq = (me.lastSeq || 0) + 1;
me.lastSeq = seq;
const promise = new Promise((resolve, reject) => callbacks.set(seq, { resolve, reject }));
binding(JSON.stringify({ type, name: bindingName, seq, args }));
return promise;
};
}
return evaluationString(addPageBinding, type, name);
}
function pageBindingDeliverResultString(name, seq, result) {
function deliverResult(name, seq, result) {
window[name].callbacks.get(seq).resolve(result);
window[name].callbacks.delete(seq);
}
return evaluationString(deliverResult, name, seq, result);
}
function pageBindingDeliverErrorString(name, seq, message, stack) {
function deliverError(name, seq, message, stack) {
const error = new Error(message);
error.stack = stack;
window[name].callbacks.get(seq).reject(error);
window[name].callbacks.delete(seq);
}
return evaluationString(deliverError, name, seq, message, stack);
}
function pageBindingDeliverErrorValueString(name, seq, value) {
function deliverErrorValue(name, seq, value) {
window[name].callbacks.get(seq).reject(value);
window[name].callbacks.delete(seq);
}
return evaluationString(deliverErrorValue, name, seq, value);
}
function makePredicateString(predicate, predicateQueryHandler) {
function checkWaitForOptions(node, waitForVisible, waitForHidden) {
if (!node)
return waitForHidden;
if (!waitForVisible && !waitForHidden)
return node;
const element = node.nodeType === Node.TEXT_NODE ? node.parentElement : node;
const style = window.getComputedStyle(element);
const isVisible = style && style.visibility !== 'hidden' && hasVisibleBoundingBox();
const success = waitForVisible === isVisible || waitForHidden === !isVisible;
return success ? node : null;
function hasVisibleBoundingBox() {
const rect = element.getBoundingClientRect();
return !!(rect.top || rect.bottom || rect.width || rect.height);
}
}
const predicateQueryHandlerDef = predicateQueryHandler
? `const predicateQueryHandler = ${predicateQueryHandler};`
: '';
return `
(() => {
${predicateQueryHandlerDef}
const checkWaitForOptions = ${checkWaitForOptions};
return (${predicate})(...args)
})() `;
}
async function waitWithTimeout(promise, taskName, timeout) {
let reject;
const timeoutError = new Errors_js_1.TimeoutError(`waiting for ${taskName} failed: timeout ${timeout}ms exceeded`);
const timeoutPromise = new Promise((resolve, x) => (reject = x));
let timeoutTimer = null;
if (timeout)
timeoutTimer = setTimeout(() => reject(timeoutError), timeout);
try {
return await Promise.race([promise, timeoutPromise]);
}
finally {
if (timeoutTimer)
clearTimeout(timeoutTimer);
}
}
async function readProtocolStream(client, handle, path) {
if (!environment_js_1.isNode && path) {
throw new Error('Cannot write to a path outside of Node.js environment.');
}
const fs = environment_js_1.isNode ? await importFSModule() : null;
let eof = false;
let fileHandle;
if (path && fs) {
fileHandle = await fs.promises.open(path, 'w');
}
const bufs = [];
while (!eof) {
const response = await client.send('IO.read', { handle });
eof = response.eof;
const buf = Buffer.from(response.data, response.base64Encoded ? 'base64' : undefined);
bufs.push(buf);
if (path && fs) {
await fs.promises.writeFile(fileHandle, buf);
}
}
if (path)
await fileHandle.close();
await client.send('IO.close', { handle });
let resultBuffer = null;
try {
resultBuffer = Buffer.concat(bufs);
}
finally {
return resultBuffer;
}
}
/**
* Loads the Node fs promises API. Needed because on Node 10.17 and below,
* fs.promises is experimental, and therefore not marked as enumerable. That
* means when TypeScript compiles an `import('fs')`, its helper doesn't spot the
* promises declaration and therefore on Node <10.17 you get an error as
* fs.promises is undefined in compiled TypeScript land.
*
* See https://github.com/puppeteer/puppeteer/issues/6548 for more details.
*
* Once Node 10 is no longer supported (April 2021) we can remove this and use
* `(await import('fs')).promises`.
*/
async function importFSModule() {
if (!environment_js_1.isNode) {
throw new Error('Cannot load the fs module API outside of Node.');
}
const fs = await Promise.resolve().then(() => __importStar(require('fs')));
if (fs.promises) {
return fs;
}
return fs.default;
}
exports.helper = {
evaluationString,
pageBindingInitString,
pageBindingDeliverResultString,
pageBindingDeliverErrorString,
pageBindingDeliverErrorValueString,
makePredicateString,
readProtocolStream,
waitWithTimeout,
waitForEvent,
isString,
isNumber,
importFSModule,
addEventListener,
removeEventListeners,
valueFromRemoteObject,
getExceptionMessage,
releaseObject,
};