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whatsapp.ts
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whatsapp.ts
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/*
* 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 axios from 'axios';
import { Page } from 'puppeteer';
import { CreateConfig } from '../config/create-config';
import { useragentOverride } from '../config/WAuserAgente';
import { evaluateAndReturn } from './helpers';
import { magix, makeOptions, timeout } from './helpers/decrypt';
import { BusinessLayer } from './layers/business.layer';
import { GetMessagesParam, Message } from './model';
import treekill = require('tree-kill');
export class Whatsapp extends BusinessLayer {
private connected: boolean | null = null;
constructor(public page: Page, session?: string, options?: CreateConfig) {
super(page, session, options);
let interval: any = null;
if (this.page) {
this.page.on('close', async () => {
clearInterval(interval);
});
}
interval = setInterval(async (state) => {
const newConnected = await page
.evaluate(() => WPP.conn.isRegistered())
.catch(() => null);
if (newConnected === null || newConnected === this.connected) {
return;
}
this.connected = newConnected;
if (!newConnected) {
this.log('info', 'Session Unpaired', { type: 'session' });
setTimeout(async () => {
if (this.statusFind) {
try {
this.statusFind('desconnectedMobile', session);
} catch (error) {}
}
}, 1000);
}
}, 1000);
}
protected async afterPageScriptInjected() {
await super.afterPageScriptInjected();
this.page
.evaluate(() => WPP.conn.isRegistered())
.then((isAuthenticated) => {
this.connected = isAuthenticated;
})
.catch(() => null);
}
/**
* Decrypts message file
* @param data Message object
* @returns Decrypted file buffer (null otherwise)
*/
public async downloadFile(data: string) {
return await evaluateAndReturn(
this.page,
(data) => WAPI.downloadFile(data),
data
);
}
/**
* Download and returns the media content in base64 format
* @param messageId Message ou id
* @returns Base64 of media
*/
public async downloadMedia(messageId: string | Message): Promise<string> {
if (typeof messageId !== 'string') {
messageId = messageId.id;
}
return await evaluateAndReturn(
this.page,
async (messageId) =>
WPP.util.blobToBase64(await WPP.chat.downloadMedia(messageId)),
messageId
);
}
/**
* Get the puppeteer page instance
* @returns The Whatsapp page
*/
get waPage(): Page {
return this.page;
}
/**
* Clicks on 'use here' button (When it get unlaunched)
* This method tracks the class of the button
* Whatsapp web might change this class name over the time
* Dont rely on this method
*/
public async useHere() {
return await evaluateAndReturn(this.page, () => WAPI.takeOver());
}
/**
* Logout whastapp
* @returns boolean
*/
public async logout() {
return await evaluateAndReturn(this.page, () => WPP.conn.logout());
}
/**
* Closes page and browser
* @internal
*/
public async close() {
const browser = this.page.browser();
if (!this.page.isClosed()) {
await this.page.close().catch(() => null);
}
await browser.close().catch(() => null);
try {
const process = browser.process();
if (process) {
treekill(process.pid, 'SIGKILL');
}
} catch (error) {}
return true;
}
/**
* Get message by id
* @param messageId string
* @returns Message object
*/
public async getMessageById(messageId: string) {
return (await evaluateAndReturn(
this.page,
(messageId: any) => WAPI.getMessageById(messageId),
messageId
)) as Message;
}
/**
* Retorna uma lista de mensagens de um chat
* @param chatId string ID da conversa ou do grupo
* @param params GetMessagesParam Opções de filtragem de resultados (count, id, direction) veja {@link GetMessagesParam}.
* @returns Message object
*/
public async getMessages(chatId: string, params: GetMessagesParam = {}) {
return await evaluateAndReturn(
this.page,
({ chatId, params }) => WAPI.getMessages(chatId, params),
{ chatId, params: params as any }
);
}
/**
* Decrypts message file
* @param message Message object
* @returns Decrypted file buffer (null otherwise)
*/
public async decryptFile(message: Message) {
const mediaUrl = message.clientUrl || message.deprecatedMms3Url;
const options = makeOptions(useragentOverride);
if (!mediaUrl)
throw new Error(
'message is missing critical data needed to download the file.'
);
let haventGottenImageYet = true;
let res: any;
try {
while (haventGottenImageYet) {
res = await axios.get<any>(mediaUrl.trim(), options);
if (res.status == 200) {
haventGottenImageYet = false;
} else {
await timeout(2000);
}
}
} catch (error) {
throw 'Error trying to download the file.';
}
const buff = Buffer.from(res.data, 'binary');
return magix(buff, message.mediaKey, message.type, message.size);
}
/**
* Rejeita uma ligação recebida pelo WhatsApp
* @param callId string ID da ligação, caso não passado, todas ligações serão rejeitadas
* @returns Número de ligações rejeitadas
*/
public async rejectCall(callId?: string) {
return await evaluateAndReturn(
this.page,
({ callId }) => WPP.call.rejectCall(callId),
{
callId,
}
);
}
}