Files
sshecret/packages/sshecret-backend/src/sshecret_backend/api/clients.py

227 lines
7.4 KiB
Python

"""Client sub-api factory."""
# pyright: reportUnusedFunction=false
import uuid
import logging
from fastapi import APIRouter, Depends, HTTPException, Query, Request
from pydantic import BaseModel, Field, model_validator
from sqlmodel import Session, col, select
from sqlalchemy import func
from typing import Annotated, Self, TypeVar
from sqlmodel.sql.expression import SelectOfScalar
from sshecret_backend.types import DBSessionDep
from sshecret_backend.models import Client, ClientSecret
from sshecret_backend.view_models import (
ClientCreate,
ClientQueryResult,
ClientView,
ClientUpdate,
)
from sshecret_backend import audit
from .common import get_client_by_id_or_name
class ClientListParams(BaseModel):
"""Client list parameters."""
limit: int = Field(100, gt=0, le=100)
offset: int = Field(0, ge=0)
id: uuid.UUID | None = None
name: str | None = None
name__like: str | None = None
name__contains: str | None = None
@model_validator(mode="after")
def validate_expressions(self) -> Self:
"""Validate mutually exclusive expression."""
name_filter = False
if self.name__like or self.name__contains:
name_filter = True
if self.name__like and self.name__contains:
raise ValueError("You may only specify one name expression")
if self.name and name_filter:
raise ValueError(
"You must either specify name or one of name__like or name__contains"
)
return self
LOG = logging.getLogger(__name__)
T = TypeVar("T")
def filter_client_statement(
statement: SelectOfScalar[T], params: ClientListParams, ignore_limits: bool = False
) -> SelectOfScalar[T]:
"""Filter a statement with the provided params."""
if params.id:
statement = statement.where(Client.id == params.id)
if params.name:
statement = statement.where(Client.name == params.name)
elif params.name__like:
statement = statement.where(col(Client.name).like(params.name__like))
elif params.name__contains:
statement = statement.where(col(Client.name).contains(params.name__contains))
if ignore_limits:
return statement
return statement.limit(params.limit).offset(params.offset)
def get_clients_api(get_db_session: DBSessionDep) -> APIRouter:
"""Construct clients sub-api."""
router = APIRouter()
@router.get("/clients/")
async def get_clients(
filter_query: Annotated[ClientListParams, Query()],
session: Annotated[Session, Depends(get_db_session)],
) -> ClientQueryResult:
"""Get clients."""
# Get total results first
count_statement = select(func.count("*")).select_from(Client)
count_statement = filter_client_statement(count_statement, filter_query, True)
total_results = session.exec(count_statement).one()
statement = filter_client_statement(select(Client), filter_query, False)
results = session.exec(statement)
remainder = total_results - filter_query.offset - filter_query.limit
if remainder < 0:
remainder = 0
clients = list(results)
clients_view = ClientView.from_client_list(clients)
return ClientQueryResult(
clients=clients_view,
total_results=total_results,
remaining_results=remainder,
)
@router.get("/clients/{name}")
async def get_client(
name: str,
session: Annotated[Session, Depends(get_db_session)],
) -> ClientView:
"""Fetch a client."""
client = await get_client_by_id_or_name(session, name)
if not client:
raise HTTPException(
status_code=404, detail="Cannot find a client with the given name."
)
return ClientView.from_client(client)
@router.delete("/clients/{name}")
async def delete_client(
request: Request,
name: str,
session: Annotated[Session, Depends(get_db_session)],
) -> None:
"""Delete a client."""
client = await get_client_by_id_or_name(session, name)
if not client:
raise HTTPException(
status_code=404, detail="Cannot find a client with the given name."
)
session.delete(client)
session.commit()
audit.audit_delete_client(session, request, client)
@router.post("/clients/")
async def create_client(
request: Request,
client: ClientCreate,
session: Annotated[Session, Depends(get_db_session)],
) -> ClientView:
"""Create client."""
existing = await get_client_by_id_or_name(session, client.name)
if existing:
raise HTTPException(400, detail="Error: Already a client with that name.")
db_client = client.to_client()
session.add(db_client)
session.commit()
session.refresh(db_client)
audit.audit_create_client(session, request, db_client)
return ClientView.from_client(db_client)
@router.post("/clients/{name}/public-key")
async def update_client_public_key(
request: Request,
name: str,
client_update: ClientUpdate,
session: Annotated[Session, Depends(get_db_session)],
) -> ClientView:
"""Change the public key of a client.
This invalidates all secrets.
"""
client = await get_client_by_id_or_name(session, name)
if not client:
raise HTTPException(
status_code=404, detail="Cannot find a client with the given name."
)
client.public_key = client_update.public_key
for secret in session.exec(
select(ClientSecret).where(ClientSecret.client_id == client.id)
).all():
LOG.debug("Invalidated secret %s", secret.id)
secret.invalidated = True
secret.client_id = None
secret.client = None
session.add(client)
session.refresh(client)
session.commit()
audit.audit_invalidate_secrets(session, request, client)
return ClientView.from_client(client)
@router.put("/clients/{name}")
async def update_client(
request: Request,
name: str,
client_update: ClientCreate,
session: Annotated[Session, Depends(get_db_session)],
) -> ClientView:
"""Change the public key of a client.
This invalidates all secrets.
"""
client = await get_client_by_id_or_name(session, name)
if not client:
raise HTTPException(
status_code=404, detail="Cannot find a client with the given name."
)
client.name = client_update.name
client.description = client_update.description
public_key_updated = False
if client_update.public_key != client.public_key:
public_key_updated = True
for secret in session.exec(
select(ClientSecret).where(ClientSecret.client_id == client.id)
).all():
LOG.debug("Invalidated secret %s", secret.id)
secret.invalidated = True
secret.client_id = None
secret.client = None
session.add(client)
session.commit()
session.refresh(client)
audit.audit_update_client(session, request, client)
if public_key_updated:
audit.audit_invalidate_secrets(session, request, client)
return ClientView.from_client(client)
return router