Spaces:
Paused
Paused
File size: 6,086 Bytes
4c34106 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | /*
* This file is part of WPPConnect.
*
* WPPConnect is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* WPPConnect is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with WPPConnect. If not, see <https://www.gnu.org/licenses/>.
*/
import { Page } from 'puppeteer';
import {
EvaluateFn,
EvaluateFnReturnType,
SerializableOrJSHandle,
} from '../../types/Evaluate';
//EvaluateFn, EvaluateFnReturnType, SerializableOrJSHandle //
export async function evaluateAndReturn<T extends EvaluateFn>(
page: Page,
pageFunction: T,
...args: SerializableOrJSHandle[]
): Promise<
EvaluateFnReturnType<T> extends PromiseLike<infer U>
? U
: EvaluateFnReturnType<T>
> {
// See https://github.com/puppeteer/puppeteer/blob/41f23beb0da2433cf9103e5d8fc22a03b1820336/src/common/ExecutionContext.ts#L196
let functionText = pageFunction.toString();
try {
new Function('(' + functionText + ')');
} catch (error) {
// This means we might have a function shorthand. Try another
// time prefixing 'function '.
if (functionText.startsWith('async ')) {
functionText =
'async function ' + functionText.substring('async '.length);
} else {
functionText = 'function ' + functionText;
}
try {
new Function('(' + functionText + ')');
} catch (error) {
// We tried hard to serialize, but there's a weird beast here.
throw new Error('Passed function is not well-serializable!');
}
}
/**
* Polyfill async/await and promise converter
* See https://github.com/basarat/typescript-book/blob/master/docs/async-await.md
*/
const func = new Function(`
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var _this; // for arrow function
return new Promise(async (resolve) => {
try {
return resolve(await (${functionText}).apply(this, arguments));
} catch (error) {
return resolve({
__error: JSON.parse(JSON.stringify(error, Object.getOwnPropertyNames(error))),
});
}
});`);
const result = (await page.evaluate(func as any, ...args)) as any;
if (result !== null && typeof result === 'object' && '__error' in result) {
const errorMessage =
result.__error.message || JSON.stringify(result.__error);
const error = new Error(errorMessage);
Object.assign(error, result.__error);
let jsStack = error.stack;
Error.captureStackTrace(error);
if (jsStack) {
error.stack = `${
error.stack || ''
}\nJS Stack: ${jsStack}\nFunction: ${functionText}`;
}
throw error;
}
return result;
}
|