Files
F-r-ldraledigplannerare/backend/app/services/workspace_service.py
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2026-06-01 16:48:21 +02:00

146 lines
5.5 KiB
Python

"""Workspace service: creation, membership, invitation token flow.
Invitation security contract:
- The service generates a random 32-byte token.
- Only SHA-256(token) is persisted (token_hash).
- The raw token is returned to the caller exactly once and never stored.
- Redemption: hash(presented_token) must match stored token_hash.
"""
from __future__ import annotations
import hashlib
import secrets
from datetime import datetime, timedelta
from uuid import UUID, uuid4
from app.entities.personal_data import PersonalData
from app.entities.workspace import Workspace
from app.entities.workspace_invitation import WorkspaceInvitation
from app.repositories.personal_data_repository import PersonalDataRepository
from app.repositories.workspace_repository import (
WorkspaceInvitationRepository,
WorkspaceRepository,
)
from app.utils.errors import InvitationError, NotFoundError, ValidationError
_INVITE_TTL_HOURS = 72
class WorkspaceService:
def __init__(
self,
ws_repo: WorkspaceRepository,
inv_repo: WorkspaceInvitationRepository,
pd_repo: PersonalDataRepository,
) -> None:
self._ws = ws_repo
self._inv = inv_repo
self._pd = pd_repo
# ------------------------------------------------------------------
# Workspace CRUD
# ------------------------------------------------------------------
async def create_workspace(self, name: str) -> Workspace:
ws = Workspace(id=uuid4(), name=name, created_at=datetime.now())
return await self._ws.create(ws)
async def get_workspace(self, workspace_id: UUID) -> Workspace:
ws = await self._ws.get_by_id(workspace_id)
if ws is None:
raise NotFoundError(f"Workspace {workspace_id} not found")
return ws
async def update_workspace(
self, workspace_id: UUID, name: str | None = None, planning_goal: str | None = None
) -> Workspace:
ws = await self.get_workspace(workspace_id)
if name is not None:
ws.name = name
if planning_goal is not None:
valid = {"max_time", "max_money", "balanced"}
if planning_goal not in valid:
raise ValidationError(f"planning_goal must be one of {valid}")
ws.planning_goal = planning_goal
return await self._ws.update(workspace_id, ws)
async def list_members(self, workspace_id: UUID) -> list[PersonalData]:
"""Return all (non-deleted) parent profiles in the workspace."""
return await self._pd.list_by_workspace(workspace_id)
async def add_placeholder_parent(self, workspace_id: UUID, display_name: str) -> PersonalData:
"""Create a parent profile without a login (solo planning for a partner)."""
await self.get_workspace(workspace_id) # verify workspace exists
pd = PersonalData(
uuid=uuid4(),
workspace_id=workspace_id,
name=display_name,
created_at=datetime.now(),
)
return await self._pd.create(pd)
# ------------------------------------------------------------------
# Invitation flow
# ------------------------------------------------------------------
async def invite_partner(self, workspace_id: UUID, invited_by_user_id: UUID) -> str:
"""Generate a single-use invite token. Returns the RAW token (share out-of-band).
Only the SHA-256 hash is stored. The raw token is lost after this call.
"""
await self.get_workspace(workspace_id)
raw_token = secrets.token_urlsafe(32)
token_hash = _sha256(raw_token)
invitation = WorkspaceInvitation(
id=uuid4(),
workspace_id=workspace_id,
token_hash=token_hash,
invited_by_user_id=invited_by_user_id,
status="pending",
expires_at=datetime.now() + timedelta(hours=_INVITE_TTL_HOURS),
created_at=datetime.now(),
)
await self._inv.create(invitation)
return raw_token
async def redeem_invitation(
self, raw_token: str, personal_data_uuid: UUID
) -> WorkspaceInvitation:
"""Link personal_data to the workspace and mark invitation accepted."""
token_hash = _sha256(raw_token)
inv = await self._inv.get_by_token_hash(token_hash)
if inv is None:
raise InvitationError("Invitation not found")
if inv.status != "pending":
raise InvitationError(f"Invitation is {inv.status}")
if datetime.now() > inv.expires_at:
inv.status = "expired"
await self._inv.update(inv.id, inv)
raise InvitationError("Invitation has expired")
# Link the personal_data to the workspace.
pd = await self._pd.get_by_id(personal_data_uuid)
if pd is None:
raise NotFoundError(f"PersonalData {personal_data_uuid} not found")
pd.workspace_id = inv.workspace_id
await self._pd.update(pd.uuid, pd)
inv.status = "accepted"
inv.accepted_at = datetime.now()
return await self._inv.update(inv.id, inv)
async def revoke_invitation(self, invitation_id: UUID) -> None:
inv = await self._inv.get_by_id(invitation_id)
if inv is None:
raise NotFoundError(f"Invitation {invitation_id} not found")
if inv.status != "pending":
raise ValidationError(f"Cannot revoke a {inv.status} invitation")
inv.status = "revoked"
await self._inv.update(inv.id, inv)
def _sha256(value: str) -> str:
return hashlib.sha256(value.encode()).hexdigest()