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answer_phone.py
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answer_phone.py
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from flask import Flask, request, g
from twilio.twiml.voice_response import VoiceResponse, Say
from twilio.rest import Client
import pymysql
import json
from db_handler import open_db_connection, close_db_connection, \
sql_select, sql_execute, get_questions
from __main__ import app
from google.cloud import storage, speech_v1
from sendgrid import SendGridAPIClient
from sendgrid.helpers.mail import Mail
import os
import urllib.request
account_sid = 'AC3e44fa4e321102d49970204274665cce'
auth_token = '1075a9192b2ecef980c681c59b21af96'
client = Client(account_sid, auth_token)
server_url = 'https://a6d899d0.ngrok.io'
say_config = { 'voice':'alice', 'lang':'en-CA' }
@app.route('/callrecording', methods=['POST', 'GET'])
def new_recording():
recordingURL = request.args.get('RecordingUrl')
callSid = request.args.get('CallSid')
entry = sql_select('SELECT * FROM responses WHERE rid=\"{}\"'.format(callSid))[0]
question_list = json.loads(entry[1])
for question in question_list:
if 'responseUrl' not in question or question['responseUrl'] != 'inProgress':
continue
else:
question['responseUrl'] = recordingURL
break
sql_execute('UPDATE responses SET questions={} WHERE rid=\"{}\"'
.format(json.dumps(str(question_list).replace("'", '\"')),
callSid)
)
print(question_list)
print("Updated questions!")
done_flag = True
# Check if we are done and need to transcribe
for question in question_list:
if 'responseUrl' not in question or \
question['responseUrl'] == 'inProgress':
done_flag = False
if done_flag:
transcribe_response(callSid, question_list)
return json.dumps({'success':True}), 200, {'ContentType':'application/json'}
@app.route("/getquestion", methods=['GET'])
def get_next_question():
next_question = 'NONE'
call_id = request.args.get('CallSid')
entry = sql_select('SELECT * FROM responses WHERE rid=\"{}\"'.format(call_id))[0]
question_list = json.loads(entry[1])
for question in question_list:
if 'responseUrl' not in question:
next_question = question['text']
break
response = VoiceResponse()
if next_question == 'NONE':
response.say("Thank you for your time. Your recruiter will contact you if they have further questions.",
voice=say_config['voice'], language=say_config['lang'])
response.hangup()
else:
response.say("Please answer the following question after the beep. Press any button when you are finished.",
voice=say_config['voice'], language=say_config['lang'])
response.say(next_question,
voice=say_config['voice'], language=say_config['lang'])
question['responseUrl'] = 'inProgress'
sql_execute('UPDATE responses SET questions={} WHERE rid=\"{}\"'
.format(json.dumps(str(question_list).replace("'", '\"')),
call_id)
)
response.record(
method='GET',
timeout=0,
max_length=120,
trim='trim-silence',
recording_status_callback=server_url+'/callrecording',
recording_status_callback_method='GET'
)
return str(response)
@app.route("/testcall", methods=['GET', 'POST'])
def test_call():
call_id = start_call(15038808741, 16)
#call_id = "CAe5a777f6971645aefb221f3ec3794f63"
#q_list = "[{'text': 'Whats your name?', 'id_question': 1, 'responseUrl': 'https://api.twilio.com/2010-04-01/Accounts/AC3e44fa4e321102d49970204274665cce/Recordings/REb68625bfd59e89afddb1cd8b504d5a58'}, {'text': 'How old are you?', 'id_question': 2, 'responseUrl': 'https://api.twilio.com/2010-04-01/Accounts/AC3e44fa4e321102d49970204274665cce/Recordings/RE1ffdfc810a3e0e252c27fe212e5ef70a'}]"
#q_list = json.loads(q_list.replace("'", '\"'))
#transcribe_response(call_id, q_list)
return "OK\n"
def transcribe_response(callSid, question_list):
# For each question, save to google, then get transcription
storage_client = storage.Client()
speech_client = speech_v1.SpeechClient()
speech_config = {
"sample_rate_hertz": 8000,
"language_code": "en-US"
}
audio_uri = {'uri': ''}
bucket_name = "hackaz-265516.appspot.com"
bucket = storage_client.bucket(bucket_name)
for question in question_list:
if 'responseUrl' in question and \
question['responseUrl'] != 'inProgress':
recording_url = question['responseUrl']
output_file_name = str(callSid)+"_"+str(question['id_question'])+".wav"
with urllib.request.urlopen(recording_url) as response,\
open(output_file_name, "wb") as out_file:
data = response.read()
out_file.write(data)
blob = bucket.blob(output_file_name)
blob.upload_from_filename(output_file_name)
os.remove(output_file_name)
audio_uri['uri'] = 'gs://'+bucket_name+'/'+output_file_name
response = speech_client.recognize(speech_config, audio_uri)
transcript = ''
for result in response.results:
transcript = result.alternatives[0].transcript
break
question['transcript'] = transcript
# Send emails using transcriptions + questions
email_info = sql_select('select Iemail, name from positions pos inner join (select name, Ppid from application app inner join (select Aphone, Ppid from app_pos ap where ap.Rrid="{}") as T1 on T1.Aphone=app.phone) as T2 on pos.pid=T2.Ppid'
.format(str(callSid)))
email_to = email_info[0][0]
email_from = '[email protected]'
email_subject = email_info[0][1]+' Phone Screen Answers'
email_body = 'Phone Screen Answers for Applicant: '+email_info[0][1]
email_body += '<br><br>'
for question in question_list:
if 'transcript' in question:
email_body += '<b>'+question['text']+'</b><br>'
email_body += 'Answer: '+question['transcript']+'<br><br>'
try:
message = Mail(
from_email=email_from,
to_emails=email_to,
subject=email_subject,
html_content=email_body
)
sg = SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
response = sg.send(message)
except Exception as e:
print(str(e))
def start_call(Aphone, position_id):
call = client.calls.create(
url=server_url+'/getquestion',
method='GET',
to='+'+str(Aphone),
from_='+12054481748'
)
# Create response entry
open_db_connection()
q_list = get_questions(position_id)
open_db_connection()
with g.db.cursor() as cursor:
json_q_list = json.dumps(str(q_list).replace("'", '\"'))
cursor.execute(
'INSERT INTO responses (rid, questions) VALUES (\"{}\", {})'
.format(call.sid, json_q_list))
g.db.commit()
open_db_connection()
with g.db.cursor() as cursor:
cursor.execute(
'UPDATE app_pos SET Rrid=\"{}\" WHERE Aphone=\"{}\" AND Ppid={}'
.format(call.sid, str(Aphone), str(position_id)))
g.db.commit()
return call