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# Local imports
try:
from string import letters
except ImportError:
from string import ascii_letters as letters
from string import digits, punctuation
# Local imports
import hashlib
from random import randint
from textwrap import dedent
# Django imports
from django.utils.crypto import get_random_string
from django.core.mail import send_mail
from django.conf import settings
def generate_activation_key(username):
""" Generate hashed secret key for email activation """
chars = letters + digits + punctuation
secret_key = get_random_string(randint(10, 40), chars)
return hashlib.sha256((secret_key + username).encode('utf-8')).hexdigest()
def send_user_mail(user_mail, key):
""" Send mail to user whose email is to be verified
This function should get two args i.e user_email and secret_key.
The activation url is generated from settings.PRODUCTION_URL and key.
"""
try:
to = user_mail
subject = "Yaksh Email Verification"
msg = dedent("""\
To activate your account and verify your email address,
please click the following link:
{0}/exam/activate/{1}
If clicking the link above does not work,
copy and paste the URL in a new browser window instead.
For any issue, please write us on {2}
Regards
Yaksh Team
""".format(settings.PRODUCTION_URL, key, settings.REPLY_EMAIL)
)
send_mail(subject, msg, settings.SENDER_EMAIL, [to])
msg = "An activation link is sent to your registered email.\
Please activate the link within 20 minutes."
success = True
except Exception as exc_msg:
msg = """Error: {0}. Please check your email address.\
If email address is correct then
Please contact your \
instructor/administrator.""".format(exc_msg)
success = False
return success, msg
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