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devicehub-teal/ereuse_devicehub/forms.py

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from flask import g
from flask_wtf import FlaskForm
from werkzeug.security import generate_password_hash
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from wtforms import BooleanField, EmailField, PasswordField, validators
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from ereuse_devicehub.db import db
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from ereuse_devicehub.resources.user.models import User
class LoginForm(FlaskForm):
email = EmailField('Email Address', [validators.Length(min=6, max=35)])
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password = PasswordField('Password', [validators.DataRequired()])
remember = BooleanField('Remember me')
error_messages = {
'invalid_login': (
"Please enter a correct email and password. Note that both "
"fields may be case-sensitive."
),
'inactive': "This account is inactive.",
}
def validate(self, extra_validators=None):
is_valid = super().validate(extra_validators)
if not is_valid:
return False
email = self.email.data
password = self.password.data
self.user_cache = self.authenticate(email, password)
if self.user_cache is None:
self.form_errors.append(self.error_messages['invalid_login'])
return False
return self.confirm_login_allowed(self.user_cache)
def authenticate(self, email, password):
if email is None or password is None:
return
user = User.query.filter_by(email=email).first()
if user is None:
# Run the default password hasher once to reduce the timing
# difference between an existing and a nonexistent user (#20760).
generate_password_hash(password)
else:
if user.check_password(password):
return user
def confirm_login_allowed(self, user):
"""
Controls whether the given User may log in. This is a policy setting,
independent of end-user authentication. This default behavior is to
allow login by active users, and reject login by inactive users.
If the given user cannot log in, this method should raise a
``ValidationError``.
If the given user may log in, this method should return None.
"""
if not user.is_active:
self.form_errors.append(self.error_messages['inactive'])
return user.is_active
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class PasswordForm(FlaskForm):
password = PasswordField(
'Current Password',
[validators.DataRequired()],
render_kw={'class': "form-control"},
)
newpassword = PasswordField(
'New Password',
[validators.DataRequired()],
render_kw={'class': "form-control"},
)
renewpassword = PasswordField(
'Re-enter New Password',
[validators.DataRequired()],
render_kw={'class': "form-control"},
)
def validate(self, extra_validators=None):
is_valid = super().validate(extra_validators)
if not is_valid:
return False
if not g.user.check_password(self.password.data):
return False
if self.newpassword.data != self.renewpassword.data:
return False
return True
def save(self, commit=True):
g.user.password = self.newpassword.data
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db.session.add(g.user)
if commit:
db.session.commit()
return