node-red-contrib-chatbot
Version:
REDBot a Chat bot for a full featured chat bot for Telegram, Facebook Messenger and Slack. Almost no coding skills required
81 lines (75 loc) • 2.67 kB
JavaScript
const request = require('request').defaults({ encoding: null });
const RegisterType = require('../lib/node-installer');
const { ChatExpress } = require('chat-platform');
const {
isValidMessage,
getChatId,
getMessageId,
getTransport,
extractValue
} = require('../lib/helpers/utils');
const MessageTemplate = require('../lib/message-template-async');
const GlobalContextHelper = require('../lib/helpers/global-context-helper');
module.exports = function(RED) {
const registerType = RegisterType(RED);
const globalContextHelper = GlobalContextHelper(RED);
function ChatBotVoice(config) {
RED.nodes.createNode(this, config);
var node = this;
globalContextHelper.init(this.context().global);
this.message = config.message;
this.language = config.language;
this.on('input', function(msg, send, done) {
// send/done compatibility for node-red < 1.0
send = send || function() { node.send.apply(node, arguments) };
done = done || function(error) { node.error.call(node, error, msg) };
// check if valid message
if (!isValidMessage(msg, node)) {
done();
return;
}
// get RedBot values
const chatId = getChatId(msg);
const messageId = getMessageId(msg);
const template = MessageTemplate(msg, node);
const transport = getTransport(msg);
// check platform
if (!ChatExpress.isSupported(transport, 'audio')) {
done(`Node "voice" is not supported by ${transport} transport`);
return;
}
// get vars
let message = extractValue('string', 'message', node, msg)
let language = extractValue('string', 'language', node, msg)
template(message)
.then(parsedMessage => {
const voiceUrl = 'http://www.voicerss.org/controls/speech.ashx?'
+ `hl=${language}&src=${encodeURI(parsedMessage)}&c=mp3&rnd=${Math.random()}`;
request.get({
url: voiceUrl,
headers: {
Referer: 'http://www.voicerss.org/api/demo.aspx'
}
}, (err, response, buffer) => {
if (err) {
done('Error contacting VoiceRSS');
} else {
send({
...msg,
payload: {
type: 'audio',
content: buffer,
filename: 'audio.mp3',
chatId: chatId,
messageId: messageId,
inbound: false
}
});
done();
}
});
});
});
}
registerType('chatbot-voice', ChatBotVoice);
};