app-MAIL-temp/app/models.py
2019-12-15 18:55:14 +02:00

554 lines
17 KiB
Python

import enum
import random
import arrow
import bcrypt
from flask import url_for
from flask_login import UserMixin
from sqlalchemy import text
from sqlalchemy_utils import ArrowType
from app import s3
from app.config import EMAIL_DOMAIN, MAX_NB_EMAIL_FREE_PLAN, URL, AVATAR_URL_EXPIRATION
from app.extensions import db
from app.log import LOG
from app.oauth_models import Scope
from app.utils import convert_to_id, random_string, random_words
class ModelMixin(object):
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
created_at = db.Column(ArrowType, default=arrow.utcnow, nullable=False)
updated_at = db.Column(ArrowType, default=None, onupdate=arrow.utcnow)
_repr_hide = ["created_at", "updated_at"]
@classmethod
def query(cls):
return db.session.query(cls)
@classmethod
def get(cls, id):
return cls.query.get(id)
@classmethod
def get_by(cls, **kw):
return cls.query.filter_by(**kw).first()
@classmethod
def filter_by(cls, **kw):
return cls.query.filter_by(**kw)
@classmethod
def get_or_create(cls, **kw):
r = cls.get_by(**kw)
if not r:
r = cls(**kw)
db.session.add(r)
return r
@classmethod
def create(cls, **kw):
r = cls(**kw)
db.session.add(r)
return r
def save(self):
db.session.add(self)
@classmethod
def delete(cls, obj_id):
cls.query.filter(cls.id == obj_id).delete()
def __repr__(self):
values = ", ".join(
"%s=%r" % (n, getattr(self, n))
for n in self.__table__.c.keys()
if n not in self._repr_hide
)
return "%s(%s)" % (self.__class__.__name__, values)
class File(db.Model, ModelMixin):
path = db.Column(db.String(128), unique=True, nullable=False)
def get_url(self, expires_in=3600):
return s3.get_url(self.path, expires_in)
class PlanEnum(enum.Enum):
monthly = 2
yearly = 3
class User(db.Model, ModelMixin, UserMixin):
__tablename__ = "users"
email = db.Column(db.String(128), unique=True, nullable=False)
salt = db.Column(db.String(128), nullable=False)
password = db.Column(db.String(128), nullable=False)
name = db.Column(db.String(128), nullable=False)
is_admin = db.Column(db.Boolean, nullable=False, default=False)
activated = db.Column(db.Boolean, default=False, nullable=False)
trial_expiration = db.Column(ArrowType)
stripe_customer_id = db.Column(db.String(128), unique=True)
stripe_card_token = db.Column(db.String(128), unique=True)
stripe_subscription_id = db.Column(db.String(128), unique=True)
profile_picture_id = db.Column(db.ForeignKey(File.id), nullable=True)
profile_picture = db.relationship(File)
@classmethod
def create(cls, email, name, password=None, **kwargs):
user: User = super(User, cls).create(email=email, name=name, **kwargs)
if not password:
# set a random password
password = random_string(20)
user.set_password(password)
# by default new user will be trial period
user.trial_expiration = arrow.now().shift(days=+15)
db.session.flush()
# create a first alias mail to show user how to use when they login
GenEmail.create_new_gen_email(user_id=user.id)
db.session.flush()
return user
def should_upgrade(self):
return not self.is_premium()
def is_premium(self):
"""user is premium if they have a active subscription"""
sub: Subscription = self.get_subscription()
if sub:
if sub.cancelled:
# user is premium until the next billing_date + 1
return sub.next_bill_date >= arrow.now().shift(days=-1).date()
# subscription active, ie not cancelled
return True
return False
def is_trial(self):
return self.trial_expiration is not None and self.trial_expiration > arrow.now()
def can_create_custom_email(self):
if self.is_premium():
return True
elif self.is_trial():
return True
return False
def can_create_new_email(self):
if self.is_premium():
return True
elif self.is_trial():
return True
else: # free or trial expired
return GenEmail.filter_by(user_id=self.id).count() < MAX_NB_EMAIL_FREE_PLAN
def set_password(self, password):
salt = bcrypt.gensalt()
password_hash = bcrypt.hashpw(password.encode(), salt).decode()
self.salt = salt.decode()
self.password = password_hash
def check_password(self, password) -> bool:
password_hash = bcrypt.hashpw(password.encode(), self.salt.encode())
return self.password.encode() == password_hash
def profile_picture_url(self):
if self.profile_picture_id:
return self.profile_picture.get_url()
else:
return url_for("static", filename="default-avatar.png")
def suggested_emails(self) -> (str, [str]):
"""return suggested email and other email choices """
all_gen_emails = [ge.email for ge in GenEmail.filter_by(user_id=self.id)]
if self.can_create_new_email():
# create a new email
suggested_gen_email = generate_email()
else:
# pick an email from the list of gen emails
suggested_gen_email = random.choice(all_gen_emails)
return (
suggested_gen_email,
list(set(all_gen_emails).difference(set([suggested_gen_email]))),
)
def suggested_names(self) -> (str, [str]):
"""return suggested name and other name choices """
other_name = convert_to_id(self.name)
return self.name, [other_name, "Anonymous", "whoami"]
def get_name_initial(self) -> str:
names = self.name.split(" ")
return "".join([n[0].upper() for n in names if n])
def plan_name(self) -> str:
if self.is_premium():
sub = self.get_subscription()
if sub.plan == PlanEnum.monthly:
return "Monthly ($2.99/month)"
else:
return "Yearly ($29.99/year)"
elif self.is_trial():
return "Trial"
else:
return "Free Plan"
def get_subscription(self):
sub = Subscription.get_by(user_id=self.id)
return sub
def __repr__(self):
return f"<User {self.id} {self.name} {self.email}>"
def _expiration_1h():
return arrow.now().shift(hours=1)
def _expiration_5m():
return arrow.now().shift(minutes=5)
class ActivationCode(db.Model, ModelMixin):
"""For activate user account"""
user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
code = db.Column(db.String(128), unique=True, nullable=False)
user = db.relationship(User)
expired = db.Column(ArrowType, nullable=False, default=_expiration_1h)
def is_expired(self):
return self.expired < arrow.now()
class ResetPasswordCode(db.Model, ModelMixin):
"""For resetting password"""
user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
code = db.Column(db.String(128), unique=True, nullable=False)
user = db.relationship(User)
expired = db.Column(ArrowType, nullable=False, default=_expiration_1h)
def is_expired(self):
return self.expired < arrow.now()
# <<< OAUTH models >>>
def generate_oauth_client_id(client_name) -> str:
oauth_client_id = convert_to_id(client_name) + "-" + random_string()
# check that the client does not exist yet
if not Client.get_by(oauth_client_id=oauth_client_id):
LOG.debug("generate oauth_client_id %s", oauth_client_id)
return oauth_client_id
# Rerun the function
LOG.warning(
"client_id %s already exists, generate a new client_id", oauth_client_id
)
return generate_oauth_client_id(client_name)
class Client(db.Model, ModelMixin):
oauth_client_id = db.Column(db.String(128), unique=True, nullable=False)
oauth_client_secret = db.Column(db.String(128), nullable=False)
name = db.Column(db.String(128), nullable=False)
home_url = db.Column(db.String(1024))
published = db.Column(db.Boolean, default=False, nullable=False)
# user who created this client
user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
icon_id = db.Column(db.ForeignKey(File.id), nullable=True)
icon = db.relationship(File)
def nb_user(self):
return ClientUser.filter_by(client_id=self.id).count()
def get_scopes(self) -> [Scope]:
# todo: client can choose which scopes they want to have access
return [Scope.NAME, Scope.EMAIL, Scope.AVATAR_URL]
@classmethod
def create_new(cls, name, user_id) -> "Client":
# generate a client-id
oauth_client_id = generate_oauth_client_id(name)
oauth_client_secret = random_string(40)
client = Client.create(
name=name,
oauth_client_id=oauth_client_id,
oauth_client_secret=oauth_client_secret,
user_id=user_id,
)
return client
def get_icon_url(self):
if self.icon_id:
return self.icon.get_url()
else:
return URL + "/static/default-icon.svg"
def last_user_login(self) -> "ClientUser":
client_user = (
ClientUser.query.filter(ClientUser.client_id == self.id)
.order_by(ClientUser.updated_at)
.first()
)
if client_user:
return client_user
return None
class RedirectUri(db.Model, ModelMixin):
"""Valid redirect uris for a client"""
client_id = db.Column(db.ForeignKey(Client.id, ondelete="cascade"), nullable=False)
uri = db.Column(db.String(1024), nullable=False)
client = db.relationship(Client, backref="redirect_uris")
class AuthorizationCode(db.Model, ModelMixin):
code = db.Column(db.String(128), unique=True, nullable=False)
client_id = db.Column(db.ForeignKey(Client.id, ondelete="cascade"), nullable=False)
user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
scope = db.Column(db.String(128))
redirect_uri = db.Column(db.String(1024))
# what is the input response_type, e.g. "code", "code,id_token", ...
response_type = db.Column(db.String(128))
user = db.relationship(User, lazy=False)
client = db.relationship(Client, lazy=False)
expired = db.Column(ArrowType, nullable=False, default=_expiration_5m)
def is_expired(self):
return self.expired < arrow.now()
class OauthToken(db.Model, ModelMixin):
access_token = db.Column(db.String(128), unique=True)
client_id = db.Column(db.ForeignKey(Client.id, ondelete="cascade"), nullable=False)
user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
scope = db.Column(db.String(128))
redirect_uri = db.Column(db.String(1024))
# what is the input response_type, e.g. "token", "token,id_token", ...
response_type = db.Column(db.String(128))
user = db.relationship(User)
client = db.relationship(Client)
expired = db.Column(ArrowType, nullable=False, default=_expiration_1h)
def is_expired(self):
return self.expired < arrow.now()
def generate_email() -> str:
"""generate an email address that does not exist before"""
random_email = random_words() + "@" + EMAIL_DOMAIN
# check that the client does not exist yet
if not GenEmail.get_by(email=random_email):
LOG.debug("generate email %s", random_email)
return random_email
# Rerun the function
LOG.warning("email %s already exists, generate a new email", random_email)
return generate_email()
class GenEmail(db.Model, ModelMixin):
"""Generated email"""
user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
email = db.Column(db.String(128), unique=True, nullable=False)
enabled = db.Column(db.Boolean(), default=True, nullable=False)
# this email has been customized by user, i.e. not generated randomly
custom = db.Column(db.Boolean(), default=False, nullable=False, server_default="0")
user = db.relationship(User)
@classmethod
def create_new_gen_email(cls, user_id):
random_email = generate_email()
return GenEmail.create(user_id=user_id, email=random_email)
def __repr__(self):
return f"<GenEmail {self.id} {self.email}>"
class ClientUser(db.Model, ModelMixin):
__table_args__ = (
db.UniqueConstraint("user_id", "client_id", name="uq_client_user"),
)
user_id = db.Column(db.ForeignKey(User.id, ondelete="cascade"), nullable=False)
client_id = db.Column(db.ForeignKey(Client.id, ondelete="cascade"), nullable=False)
# Null means client has access to user original email
gen_email_id = db.Column(
db.ForeignKey(GenEmail.id, ondelete="cascade"), nullable=True
)
# user can decide to send to client another name
name = db.Column(
db.String(128), nullable=True, default=None, server_default=text("NULL")
)
# user can decide to send to client a default avatar
default_avatar = db.Column(
db.Boolean, nullable=False, default=False, server_default="0"
)
gen_email = db.relationship(GenEmail, backref="client_users")
user = db.relationship(User)
client = db.relationship(Client)
def get_email(self):
return self.gen_email.email if self.gen_email_id else self.user.email
def get_user_name(self):
if self.name:
return self.name
else:
return self.user.name
def get_user_info(self) -> dict:
"""return user info according to client scope
Return dict with key being scope name. For now all the fields are the same for all clients:
{
"client": "Demo",
"email": "test-avk5l@mail-tester.com",
"email_verified": true,
"id": 1,
"name": "Son GM",
"avatar_url": "http://s3..."
}
"""
res = {
"id": self.id,
"client": self.client.name,
"email_verified": True,
"sub": str(self.id),
}
for scope in self.client.get_scopes():
if scope == Scope.NAME:
if self.name:
res[Scope.NAME.value] = self.name
else:
res[Scope.NAME.value] = self.user.name
elif scope == Scope.AVATAR_URL:
if self.user.profile_picture_id:
if self.default_avatar:
res[Scope.AVATAR_URL.value] = URL + "/static/default-avatar.png"
else:
res[Scope.AVATAR_URL.value] = self.user.profile_picture.get_url(
AVATAR_URL_EXPIRATION
)
else:
res[Scope.AVATAR_URL.value] = None
elif scope == Scope.EMAIL:
# Use generated email
if self.gen_email_id:
LOG.debug(
"Use gen email for user %s, client %s", self.user, self.client
)
res[Scope.EMAIL.value] = self.gen_email.email
# Use user original email
else:
res[Scope.EMAIL.value] = self.user.email
return res
class ForwardEmail(db.Model, ModelMixin):
"""
Emails that are forwarded through SL: email that is sent by website to user via SL alias
"""
__table_args__ = (
db.UniqueConstraint("gen_email_id", "website_email", name="uq_forward_email"),
)
gen_email_id = db.Column(
db.ForeignKey(GenEmail.id, ondelete="cascade"), nullable=False
)
website_email = db.Column(db.String(128), nullable=False)
# when user clicks on "reply", they will reply to this address.
# This address allows to hide user personal email
# this reply email is created every time a website sends an email to user
# it has the prefix "reply+" to distinguish with other email
reply_email = db.Column(db.String(128), nullable=False)
gen_email = db.relationship(GenEmail)
class ForwardEmailLog(db.Model, ModelMixin):
forward_id = db.Column(
db.ForeignKey(ForwardEmail.id, ondelete="cascade"), nullable=False
)
# whether this is a reply
is_reply = db.Column(db.Boolean, nullable=False, default=False)
# for ex if alias is disabled, this forwarding is blocked
blocked = db.Column(db.Boolean, nullable=False, default=False)
class Subscription(db.Model, ModelMixin):
# Come from Paddle
cancel_url = db.Column(db.String(1024), nullable=False)
update_url = db.Column(db.String(1024), nullable=False)
subscription_id = db.Column(db.String(1024), nullable=False, unique=True)
event_time = db.Column(ArrowType, nullable=False)
next_bill_date = db.Column(db.Date, nullable=False)
cancelled = db.Column(db.Boolean, nullable=False, default=False)
plan = db.Column(db.Enum(PlanEnum), nullable=False)
user_id = db.Column(
db.ForeignKey(User.id, ondelete="cascade"), nullable=False, unique=True
)
user = db.relationship(User)