Buckler/validation.py

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Python
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2019-09-19 20:49:40 -04:00
#!/usr/bin/env python3
"""
Functions for validating forms.
"""
async def validate_register(request, form):
"""Validate data from the registration form."""
username = form.get('username')
email = form.get('email')
password = form.get('password')
password_verify = form.get('password_verify')
async with request.app['pool'].acquire() as conn:
users = await conn.fetch(
"SELECT username, email FROM user_info "
"WHERE username = $1 OR email = $2",
username, email)
errors = {'password': [], 'username': [], 'email': []}
if password != password_verify:
errors['password'].append("Passwords do not match.")
if len(password) < 8 or len(password) > 10240:
errors['password'].append(
"Password must be between 8 and 10240 characters long.")
if len(username) < 3 or len(username) > 20:
errors['username'].append(
"Username must be between 3 and 20 characters long.")
if username in [user['username'] for user in users]:
errors['username'].append("Username already in use.")
if email in [user['email'] for user in users]:
errors['email'].append("Email already in use.")
return errors