Twilio Conference call のサンプル

twiml_conference_sample.py

#!/usr/bin/env python
# coding: utf-8

from flask import Flask, request, url_for
from twilio import twiml as Twiml
from twilio.rest import TwilioRestClient
import redis

# アプリケーション開始
app = Flask(__name__, static_url_path='/static')

ACCOUNT_SID = '<YOUR SID>'
AUTH_TOKEN = '<YOUR AUTH_TOKEN>'

CONFERENCE_ID = "<CONFERENCE NAME>"
ENDPOINT_ROOT = "http://localhost"

# const values
TWILIO_TEL_NUM = '<PHONE NUMBER PROVIDED BY TWILIO>'
DIAL_NUM = "<YOUR CLIENT NAME>"

REDIS_HOST = "<HOSTNAME OF REDIS>"
REDIS_PORT = 14375
REDIS_PASS = "<REDIS PASSOWRD>"

# クライアントセットアップ
twilio_cli = TwilioRestClient(ACCOUNT_SID, AUTH_TOKEN)
redis_cli = redis.StrictRedis(host=REDIS_HOST, port=REDIS_PORT, db=0,
                              password=REDIS_PASS)


def join_conference_twiml(mute=False):
    res = Twiml.Response()
    with res.dial() as dial:
        dial.conference(CONFERENCE_ID, muted=mute, beep=False, waitUrl="",
                        startConferenceOnEnter=True, endConferenceOnExit=True)
    return str(res)


@app.route("/", methods=['GET', 'POST'])
def index():
    from_number = request.values.get('From', None)
    to_number = request.values.get('To', None)
    if (from_number == to_number):
        # twilio 自身が電話をかけた場合
        res = Twiml.Response()
        with res.dial() as dial:
            dial.conference(CONFERENCE_ID, beep=False)
        return str(res)
    twilio_cli.calls.create(from_=TWILIO_TEL_NUM, to=DIAL_NUM,
                            url=url_for('conference_joined',
                                        _external=True))
    return join_conference_twiml()


@app.route("/conference_joined", methods=['GET', 'POST'])
def conference_joined():
    return join_conference_twiml(True)


@app.route("/message_req", methods=['POST'])
def message_req():
    message = request.form.get('message', "")
    # Redis に一旦保存
    redis_cli.rpush('message', message)
    print "pushed_message: ", message
    if message:
        twilio_cli.calls.create(from_=TWILIO_TEL_NUM, to=TWILIO_TEL_NUM,
                                url=url_for('message_res', _external=True))
    return ""


@app.route('/message_res', methods=['POST'])
def message_res():
    message = redis_cli.lpop('message')
    print "poped_message: ", message
    res = Twiml.Response()
    say_option = {"language": "ja-jp", "voice": Twiml.Say.MAN}
    res.append(Twiml.Say('dummy', **say_option))
    res.append(Twiml.Say(message.decode('utf-8'), **say_option))
    return str(res)