Add booking email confirmation

[rauldpm]

This issue aims to add a confirmation via email of the reservation made by the user. This could be done by asking the user for a contact email where to send a summary of the reservation using postman.

[rauldpm]

Update report

• Steps to send emails

  • Install requirements

  apt-get install postfix mailutils libsasl2-2 ca-certificates libsasl2-modules

  • Add to /etc/postfix/main.cf:

  relayhost = [smtp.gmail.com]:587
  smtp_sasl_auth_enable = yes
  smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
  smtp_sasl_security_options = noanonymous
  smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
  smtp_use_tls = yes

  • Create an APP password (gmail)
  • Set user and password

  echo [smtp.gmail.com]:587 email:app_password > /etc/postfix/sasl_passwd
  postmap /etc/postfix/sasl_passwd
  chmod 400 /etc/postfix/sasl_passwd

  • Set database

  chown root:root /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
  chmod 0600 /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db

  • Restart postfix

  systemctl reload postfix

  • Test

  echo "Test mail from postfix" | mail -s "Test Postfix" -r "you@example.com" you@example.com

[rauldpm]

Update report

• Instead of using postfix, python code will be used to send a plain text with the reservation confirmation code.
• This avoids burdening the system with one more service and simplifies the process

code = str(random.randint(100000,999999))

port = 587
server = "smtp.gmail.com"
sender = sender
recipient = reserva_email
password = "APP_PASSWORD"

msg = MIMEMultipart()
message = "Hello!\n"
message += "Your reservation code is: " + code

msg['From'] = sender
msg['To'] = recipient
msg['Subject'] = "Restaurant reservation code"
msg.attach(MIMEText(message, "plain"))
text = msg.as_string()
SSLcontext = ssl.create_default_context()

with smtplib.SMTP(server, port) as server:
    server.starttls(context=SSLcontext)
    server.login(sender, password)
    server.sendmail(sender, recipient, text)

[rauldpm]

Update report

• Improve email actions
• Add an email class
• Improve options output
• Added control slots to check reservation status
• Improve buttons mechanism
• Improve stories
• Improve data structure