forked from ScoDoc/ScoDoc
491 lines
17 KiB
Python
491 lines
17 KiB
Python
# -*- coding: UTF-8 -*
|
|
|
|
"""Users and Roles models for ScoDoc
|
|
"""
|
|
|
|
import base64
|
|
from datetime import datetime, timedelta
|
|
import os
|
|
import re
|
|
from time import time
|
|
from typing import Optional
|
|
|
|
import cracklib # pylint: disable=import-error
|
|
from flask import current_app, g
|
|
from flask_login import UserMixin, AnonymousUserMixin
|
|
|
|
from werkzeug.security import generate_password_hash, check_password_hash
|
|
|
|
import jwt
|
|
|
|
from app import db, login
|
|
from app.models import Departement
|
|
from app.models import SHORT_STR_LEN
|
|
from app.scodoc.sco_exceptions import ScoValueError
|
|
from app.scodoc.sco_permissions import Permission
|
|
from app.scodoc.sco_roles_default import SCO_ROLES_DEFAULTS
|
|
import app.scodoc.sco_utils as scu
|
|
from app.scodoc import sco_etud # a deplacer dans scu
|
|
|
|
VALID_LOGIN_EXP = re.compile(r"^[a-zA-Z0-9@\\\-_\.]+$")
|
|
|
|
|
|
def is_valid_password(cleartxt):
|
|
"""Check password.
|
|
returns True if OK.
|
|
"""
|
|
if (
|
|
hasattr(scu.CONFIG, "MIN_PASSWORD_LENGTH")
|
|
and scu.CONFIG.MIN_PASSWORD_LENGTH > 0
|
|
and len(cleartxt) < scu.CONFIG.MIN_PASSWORD_LENGTH
|
|
):
|
|
return False # invalid: too short
|
|
try:
|
|
_ = cracklib.FascistCheck(cleartxt)
|
|
return True
|
|
except ValueError:
|
|
return False
|
|
|
|
|
|
class User(UserMixin, db.Model):
|
|
"""ScoDoc users, handled by Flask / SQLAlchemy"""
|
|
|
|
id = db.Column(db.Integer, primary_key=True)
|
|
user_name = db.Column(db.String(64), index=True, unique=True)
|
|
email = db.Column(db.String(120))
|
|
|
|
nom = db.Column(db.String(64))
|
|
prenom = db.Column(db.String(64))
|
|
dept = db.Column(db.String(SHORT_STR_LEN), index=True)
|
|
active = db.Column(db.Boolean, default=True, index=True)
|
|
|
|
password_hash = db.Column(db.String(128))
|
|
password_scodoc7 = db.Column(db.String(42))
|
|
last_seen = db.Column(db.DateTime, default=datetime.utcnow)
|
|
date_modif_passwd = db.Column(db.DateTime, default=datetime.utcnow)
|
|
date_created = db.Column(db.DateTime, default=datetime.utcnow)
|
|
date_expiration = db.Column(db.DateTime, default=None)
|
|
passwd_temp = db.Column(db.Boolean, default=False)
|
|
token = db.Column(db.Text(), index=True, unique=True)
|
|
token_expiration = db.Column(db.DateTime)
|
|
|
|
roles = db.relationship("Role", secondary="user_role", viewonly=True)
|
|
Permission = Permission
|
|
|
|
_departement = db.relationship(
|
|
"Departement",
|
|
foreign_keys=[Departement.acronym],
|
|
primaryjoin=(dept == Departement.acronym),
|
|
lazy="select",
|
|
passive_deletes="all",
|
|
uselist=False,
|
|
)
|
|
|
|
def __init__(self, **kwargs):
|
|
self.roles = []
|
|
self.user_roles = []
|
|
# check login:
|
|
if kwargs.get("user_name") and not VALID_LOGIN_EXP.match(kwargs["user_name"]):
|
|
raise ValueError(f"invalid user_name: {kwargs['user_name']}")
|
|
super(User, self).__init__(**kwargs)
|
|
# Ajoute roles:
|
|
if (
|
|
not self.roles
|
|
and self.email
|
|
and self.email == current_app.config["SCODOC_ADMIN_MAIL"]
|
|
):
|
|
# super-admin
|
|
admin_role = Role.query.filter_by(name="SuperAdmin").first()
|
|
assert admin_role
|
|
self.add_role(admin_role, None)
|
|
db.session.commit()
|
|
# current_app.logger.info("creating user with roles={}".format(self.roles))
|
|
|
|
def __repr__(self):
|
|
return f"<User {self.user_name} id={self.id} dept={self.dept}{' (inactive)' if not self.active else ''}>"
|
|
|
|
def __str__(self):
|
|
return self.user_name
|
|
|
|
def set_password(self, password):
|
|
"Set password"
|
|
current_app.logger.info(f"set_password({self})")
|
|
if password:
|
|
self.password_hash = generate_password_hash(password)
|
|
else:
|
|
self.password_hash = None
|
|
self.passwd_temp = False
|
|
|
|
def check_password(self, password):
|
|
"""Check given password vs current one.
|
|
Returns `True` if the password matched, `False` otherwise.
|
|
"""
|
|
if not self.active: # inactived users can't login
|
|
return False
|
|
if (not self.password_hash) and self.password_scodoc7:
|
|
# Special case: user freshly migrated from ScoDoc7
|
|
if scu.check_scodoc7_password(self.password_scodoc7, password):
|
|
current_app.logger.warning(
|
|
f"migrating legacy ScoDoc7 password for {self}"
|
|
)
|
|
self.set_password(password)
|
|
self.password_scodoc7 = None
|
|
db.session.add(self)
|
|
db.session.commit()
|
|
return True
|
|
return False
|
|
if not self.password_hash: # user without password can't login
|
|
return False
|
|
return check_password_hash(self.password_hash, password)
|
|
|
|
def get_reset_password_token(self, expires_in=600):
|
|
"Un token pour réinitialiser son mot de passe"
|
|
return jwt.encode(
|
|
{"reset_password": self.id, "exp": time() + expires_in},
|
|
current_app.config["SECRET_KEY"],
|
|
algorithm="HS256",
|
|
)
|
|
|
|
@staticmethod
|
|
def verify_reset_password_token(token):
|
|
"Vérification du token de reéinitialisation du mot de passe"
|
|
try:
|
|
user_id = jwt.decode(
|
|
token, current_app.config["SECRET_KEY"], algorithms=["HS256"]
|
|
)["reset_password"]
|
|
except:
|
|
return
|
|
return User.query.get(user_id)
|
|
|
|
def to_dict(self, include_email=True):
|
|
"""l'utilisateur comme un dict, avec des champs supplémentaires"""
|
|
data = {
|
|
"date_expiration": self.date_expiration.isoformat() + "Z"
|
|
if self.date_expiration
|
|
else "",
|
|
"date_modif_passwd": self.date_modif_passwd.isoformat() + "Z"
|
|
if self.date_modif_passwd
|
|
else "",
|
|
"date_created": self.date_created.isoformat() + "Z"
|
|
if self.date_created
|
|
else "",
|
|
"dept": (self.dept or ""), # sco8
|
|
"id": self.id,
|
|
"active": self.active,
|
|
"status_txt": "actif" if self.active else "fermé",
|
|
"last_seen": self.last_seen.isoformat() + "Z",
|
|
"nom": (self.nom or ""), # sco8
|
|
"prenom": (self.prenom or ""), # sco8
|
|
"roles_string": self.get_roles_string(), # eg "Ens_RT, Ens_Info"
|
|
"user_name": self.user_name, # sco8
|
|
# Les champs calculés:
|
|
"nom_fmt": self.get_nom_fmt(),
|
|
"prenom_fmt": self.get_prenom_fmt(),
|
|
"nomprenom": self.get_nomprenom(),
|
|
"prenomnom": self.get_prenomnom(),
|
|
"nomplogin": self.get_nomplogin(),
|
|
"nomcomplet": self.get_nomcomplet(),
|
|
}
|
|
if include_email:
|
|
data["email"] = self.email or ""
|
|
return data
|
|
|
|
def from_dict(self, data, new_user=False):
|
|
"""Set users' attributes from given dict values.
|
|
Roles must be encoded as "roles_string", like "Ens_RT, Secr_CJ"
|
|
"""
|
|
for field in ["nom", "prenom", "dept", "active", "email", "date_expiration"]:
|
|
if field in data:
|
|
setattr(self, field, data[field] or None)
|
|
if new_user:
|
|
if "user_name" in data:
|
|
# never change name of existing users
|
|
self.user_name = data["user_name"]
|
|
if "password" in data:
|
|
self.set_password(data["password"])
|
|
if not VALID_LOGIN_EXP.match(self.user_name):
|
|
raise ValueError(f"invalid user_name: {self.user_name}")
|
|
# Roles: roles_string is "Ens_RT, Secr_RT, ..."
|
|
if "roles_string" in data:
|
|
self.user_roles = []
|
|
for r_d in data["roles_string"].split(","):
|
|
if r_d:
|
|
role, dept = UserRole.role_dept_from_string(r_d)
|
|
self.add_role(role, dept)
|
|
|
|
def get_token(self, expires_in=3600):
|
|
now = datetime.utcnow()
|
|
if self.token and self.token_expiration > now + timedelta(seconds=60):
|
|
return self.token
|
|
self.token = base64.b64encode(os.urandom(24)).decode("utf-8")
|
|
self.token_expiration = now + timedelta(seconds=expires_in)
|
|
db.session.add(self)
|
|
return self.token
|
|
|
|
def revoke_token(self):
|
|
self.token_expiration = datetime.utcnow() - timedelta(seconds=1)
|
|
|
|
@staticmethod
|
|
def check_token(token):
|
|
"""Retreive user for given token, chek token's validity
|
|
and returns the user object.
|
|
"""
|
|
user = User.query.filter_by(token=token).first()
|
|
if user is None or user.token_expiration < datetime.utcnow():
|
|
return None
|
|
return user
|
|
|
|
def get_dept_id(self) -> int:
|
|
"returns user's department id, or None"
|
|
if self.dept:
|
|
return self._departement.id
|
|
return None
|
|
|
|
# Permissions management:
|
|
def has_permission(self, perm: int, dept=False):
|
|
"""Check if user has permission `perm` in given `dept`.
|
|
Similar to Zope ScoDoc7 `has_permission``
|
|
|
|
Args:
|
|
perm: integer, one of the value defined in Permission class.
|
|
dept: dept id (eg 'RT'), default to current departement.
|
|
"""
|
|
if not self.active:
|
|
return False
|
|
if dept is False:
|
|
dept = g.scodoc_dept
|
|
# les role liés à ce département, et les roles avec dept=None (super-admin)
|
|
roles_in_dept = (
|
|
UserRole.query.filter_by(user_id=self.id)
|
|
.filter((UserRole.dept == dept) | (UserRole.dept == None))
|
|
.all()
|
|
)
|
|
for user_role in roles_in_dept:
|
|
if user_role.role.has_permission(perm):
|
|
return True
|
|
return False
|
|
|
|
# Role management
|
|
def add_role(self, role, dept):
|
|
"""Add a role to this user.
|
|
:param role: Role to add.
|
|
"""
|
|
if not isinstance(role, Role):
|
|
raise ScoValueError("add_role: rôle invalide")
|
|
self.user_roles.append(UserRole(user=self, role=role, dept=dept))
|
|
|
|
def add_roles(self, roles, dept):
|
|
"""Add roles to this user.
|
|
:param roles: Roles to add.
|
|
"""
|
|
for role in roles:
|
|
self.add_role(role, dept)
|
|
|
|
def set_roles(self, roles, dept):
|
|
"set roles in the given dept"
|
|
self.user_roles = [
|
|
UserRole(user=self, role=r, dept=dept) for r in roles if isinstance(r, Role)
|
|
]
|
|
|
|
def get_roles(self):
|
|
"iterator on my roles"
|
|
for role in self.roles:
|
|
yield role
|
|
|
|
def get_roles_string(self):
|
|
"""string repr. of user's roles (with depts)
|
|
e.g. "Ens_RT, Ens_Info, Secr_CJ"
|
|
"""
|
|
return ",".join(
|
|
f"{r.role.name or ''}_{r.dept or ''}"
|
|
for r in self.user_roles
|
|
if r is not None
|
|
)
|
|
|
|
def is_administrator(self):
|
|
"True if i'm an active SuperAdmin"
|
|
return self.active and self.has_permission(Permission.ScoSuperAdmin, dept=None)
|
|
|
|
# Some useful strings:
|
|
def get_nomplogin(self):
|
|
"""nomplogin est le nom en majuscules suivi du prénom et du login
|
|
e.g. Dupont Pierre (dupont)
|
|
"""
|
|
if self.nom:
|
|
n = sco_etud.format_nom(self.nom)
|
|
else:
|
|
n = self.user_name.upper()
|
|
return "%s %s (%s)" % (
|
|
n,
|
|
sco_etud.format_prenom(self.prenom),
|
|
self.user_name,
|
|
)
|
|
|
|
@staticmethod
|
|
def get_user_id_from_nomplogin(nomplogin: str) -> Optional[int]:
|
|
"""Returns id from the string "Dupont Pierre (dupont)"
|
|
or None if user does not exist
|
|
"""
|
|
m = re.match(r".*\((.*)\)", nomplogin.strip())
|
|
if m:
|
|
user_name = m.group(1)
|
|
u = User.query.filter_by(user_name=user_name).first()
|
|
if u:
|
|
return u.id
|
|
return None
|
|
|
|
def get_nom_fmt(self):
|
|
"""Nom formatté: "Martin" """
|
|
if self.nom:
|
|
return sco_etud.format_nom(self.nom, uppercase=False)
|
|
else:
|
|
return self.user_name
|
|
|
|
def get_prenom_fmt(self):
|
|
"""Prénom formaté (minuscule capitalisées)"""
|
|
return sco_etud.format_prenom(self.prenom)
|
|
|
|
def get_nomprenom(self):
|
|
"""Nom capitalisé suivi de l'initiale du prénom:
|
|
Viennet E.
|
|
"""
|
|
prenom_abbrv = scu.abbrev_prenom(sco_etud.format_prenom(self.prenom))
|
|
return (self.get_nom_fmt() + " " + prenom_abbrv).strip()
|
|
|
|
def get_prenomnom(self):
|
|
"""L'initiale du prénom suivie du nom: "J.-C. Dupont" """
|
|
prenom_abbrv = scu.abbrev_prenom(sco_etud.format_prenom(self.prenom))
|
|
return (prenom_abbrv + " " + self.get_nom_fmt()).strip()
|
|
|
|
def get_nomcomplet(self):
|
|
"Prénom et nom complets"
|
|
return sco_etud.format_prenom(self.prenom) + " " + self.get_nom_fmt()
|
|
|
|
# nomnoacc était le nom en minuscules sans accents (inutile)
|
|
|
|
|
|
class AnonymousUser(AnonymousUserMixin):
|
|
def has_permission(self, perm, dept=None):
|
|
return False
|
|
|
|
def is_administrator(self):
|
|
return False
|
|
|
|
|
|
login.anonymous_user = AnonymousUser
|
|
|
|
|
|
class Role(db.Model):
|
|
"""Roles for ScoDoc"""
|
|
|
|
id = db.Column(db.Integer, primary_key=True)
|
|
name = db.Column(db.String(64), unique=True) # TODO: , nullable=False))
|
|
default = db.Column(db.Boolean, default=False, index=True)
|
|
permissions = db.Column(db.BigInteger) # 64 bits
|
|
users = db.relationship("User", secondary="user_role", viewonly=True)
|
|
# __table_args__ = (db.UniqueConstraint("name", "dept", name="_rolename_dept_uc"),)
|
|
|
|
def __init__(self, **kwargs):
|
|
super(Role, self).__init__(**kwargs)
|
|
if self.permissions is None:
|
|
self.permissions = 0
|
|
|
|
def __repr__(self):
|
|
return "<Role {} perm={:0{w}b}>".format(
|
|
self.name,
|
|
self.permissions & ((1 << Permission.NBITS) - 1),
|
|
w=Permission.NBITS,
|
|
)
|
|
|
|
def add_permission(self, perm):
|
|
self.permissions |= perm
|
|
|
|
def remove_permission(self, perm):
|
|
self.permissions = self.permissions & ~perm
|
|
|
|
def reset_permissions(self):
|
|
self.permissions = 0
|
|
|
|
def has_permission(self, perm):
|
|
return self.permissions & perm == perm
|
|
|
|
@staticmethod
|
|
def insert_roles():
|
|
"""Create default roles"""
|
|
default_role = "Observateur"
|
|
for role_name, permissions in SCO_ROLES_DEFAULTS.items():
|
|
role = Role.query.filter_by(name=role_name).first()
|
|
if role is None:
|
|
role = Role(name=role_name)
|
|
role.reset_permissions()
|
|
for perm in permissions:
|
|
role.add_permission(perm)
|
|
role.default = role.name == default_role
|
|
db.session.add(role)
|
|
db.session.commit()
|
|
|
|
@staticmethod
|
|
def get_named_role(name):
|
|
"""Returns existing role with given name, or None."""
|
|
return Role.query.filter_by(name=name).first()
|
|
|
|
|
|
class UserRole(db.Model):
|
|
"""Associate user to role, in a dept.
|
|
If dept is None, the role applies to all departments (eg super admin).
|
|
"""
|
|
|
|
id = db.Column(db.Integer, primary_key=True)
|
|
user_id = db.Column(db.Integer, db.ForeignKey("user.id"))
|
|
role_id = db.Column(db.Integer, db.ForeignKey("role.id"))
|
|
dept = db.Column(db.String(64)) # dept acronym ou NULL
|
|
user = db.relationship(
|
|
User, backref=db.backref("user_roles", cascade="all, delete-orphan")
|
|
)
|
|
role = db.relationship(
|
|
Role, backref=db.backref("user_roles", cascade="all, delete-orphan")
|
|
)
|
|
|
|
def __repr__(self):
|
|
return "<UserRole u={} r={} dept={}>".format(self.user, self.role, self.dept)
|
|
|
|
@staticmethod
|
|
def role_dept_from_string(role_dept: str):
|
|
"""Return tuple (role, dept) from the string
|
|
role_dept, of the forme "Role_Dept".
|
|
role is a Role instance, dept is a string, or None.
|
|
"""
|
|
fields = role_dept.split("_", 1) # maxsplit=1, le dept peut contenir un "_"
|
|
if len(fields) != 2:
|
|
current_app.logger.warning(
|
|
f"role_dept_from_string: Invalid role_dept '{role_dept}'"
|
|
)
|
|
raise ScoValueError("Invalid role_dept")
|
|
role_name, dept = fields
|
|
if dept == "":
|
|
dept = None
|
|
role = Role.query.filter_by(name=role_name).first()
|
|
if role is None:
|
|
raise ScoValueError("role %s does not exists" % role_name)
|
|
return (role, dept)
|
|
|
|
|
|
def get_super_admin():
|
|
"""L'utilisateur admin (ou le premier, s'il y en a plusieurs).
|
|
Utilisé par les tests unitaires et le script de migration.
|
|
"""
|
|
admin_role = Role.query.filter_by(name="SuperAdmin").first()
|
|
assert admin_role
|
|
admin_user = (
|
|
User.query.join(UserRole)
|
|
.filter((UserRole.user_id == User.id) & (UserRole.role_id == admin_role.id))
|
|
.first()
|
|
)
|
|
assert admin_user
|
|
return admin_user
|
|
|
|
|
|
@login.user_loader
|
|
def load_user(uid):
|
|
return User.query.get(int(uid))
|