204 lines
4.2 KiB
Python
204 lines
4.2 KiB
Python
"""
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Pydantic representation of database contents.
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"""
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from __future__ import annotations
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from datetime import datetime
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from enum import Enum
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from typing import Any
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from passlib.context import CryptContext
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from pydantic import BaseModel, validator
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from sqlalchemy.exc import IntegrityError
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from sqlalchemy.orm import Session
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from . import models
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##########
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# table: distinguished_names
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##########
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class DistinguishedNameBase(BaseModel):
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cn_only: bool
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country: str
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state: str
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city: str
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organization: str
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organizational_unit: str
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email: str
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common_name: str
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class DistinguishedNameCreate(DistinguishedNameBase):
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pass
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class DistinguishedName(DistinguishedNameBase):
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class Config:
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orm_mode = True
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##########
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# table: certificates
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##########
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class CertificateBase(BaseModel):
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expiry: datetime
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class CertificateCreate(CertificateBase):
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pass
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class Certificate(CertificateBase):
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distinguished_name: DistinguishedName
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class Config:
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orm_mode = True
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##########
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# table: user_capabilities
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##########
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class UserCapability(Enum):
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admin = "admin"
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@classmethod
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def from_value(cls, value) -> UserCapability:
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"""
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Create UserCapability from various formats
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"""
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if isinstance(value, cls):
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# value is already a UserCapability, use that
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return value
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elif isinstance(value, models.UserCapability):
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# create from db format
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return cls(value.capability)
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else:
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# create from string representation
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return cls(str(value))
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##########
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# table: users
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##########
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class UserBase(BaseModel):
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name: str
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class UserCreate(UserBase):
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password: str
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class User(UserBase):
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capabilities: list[UserCapability] = []
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distinguished_names: list[DistinguishedName] = []
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certificates: list[Certificate] = []
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class Config:
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orm_mode = True
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@validator("capabilities", pre=True)
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@classmethod
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def unify_capabilities(cls, value: list[Any]) -> list[UserCapability]:
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"""
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Import the capabilities from various formats
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"""
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return [
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UserCapability.from_value(capability)
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for capability in value
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]
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@classmethod
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def from_db(
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cls,
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db: Session,
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name: str,
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) -> User | None:
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"""
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Load user from database by name.
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"""
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if (db_user := models.User.load(db, name)) is None:
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return None
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return cls.from_orm(db_user)
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@classmethod
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def create(
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cls,
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db: Session,
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user: UserCreate,
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crypt_context: CryptContext,
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) -> User | None:
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"""
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Create a new user in the database.
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"""
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try:
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user = models.User(
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name=user.name,
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password=crypt_context.hash(user.password),
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capabilities=[],
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)
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db.add(user)
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db.commit()
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db.refresh(user)
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return cls.from_orm(user)
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except IntegrityError:
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# user already existed
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pass
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def authenticate(
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self,
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db: Session,
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password: str,
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crypt_context: CryptContext,
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) -> User | None:
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"""
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Authenticate with name/password against users in database.
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"""
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if (db_user := models.User.load(db, self.name)) is None:
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# nonexistent user, fake doing password verification
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crypt_context.dummy_verify()
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return False
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if not crypt_context.verify(password, db_user.password):
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# password hash mismatch
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return False
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self.from_orm(db_user)
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return True
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def update(
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self,
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db: Session,
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) -> None:
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"""
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Update this user in the database.
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"""
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old_dbuser = models.User.load(db, self.name)
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old_user = self.from_orm(old_dbuser)
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for capability in self.capabilities:
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if capability not in old_user.capabilities:
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old_dbuser.capabilities.append(
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models.UserCapability(capability=capability.value)
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)
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db.commit()
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