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FastAPI dependency injection functions.
Provides common dependencies for authentication, authorization,
and service access across all API endpoints.
"""
from typing import Optional
from fastapi import Depends, HTTPException, status, Query
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
from app.config import get_settings, Settings
from app.core.security import decode_access_token
from app.core import AuthenticationError, AuthorizationError
from app.models.user import AccountType, TokenPayload
from app.services.supabase_client import SupabaseService, get_supabase_service
# OAuth2 bearer scheme for JWT tokens
security = HTTPBearer(auto_error=False)
async def get_settings_dep() -> Settings:
"""Dependency to get application settings."""
return get_settings()
async def get_supabase(
settings: Settings = Depends(get_settings_dep)
) -> SupabaseService:
"""Dependency to get Supabase service instance."""
return get_supabase_service()
async def get_current_user_optional(
credentials: Optional[HTTPAuthorizationCredentials] = Depends(security),
) -> Optional[dict]:
"""
Get current user from JWT token if present.
Returns None if no token provided (for public endpoints).
"""
if not credentials:
return None
token = credentials.credentials
payload = decode_access_token(token)
if not payload:
return None
return {
"id": payload.get("sub"),
"email": payload.get("email"),
"account_type": payload.get("account_type"),
"organization_id": payload.get("organization_id")
}
async def get_current_user(
credentials: Optional[HTTPAuthorizationCredentials] = Depends(security),
token_query: Optional[str] = Query(None, alias="token")
) -> dict:
"""
Get current authenticated user from JWT token (Header or Query param).
Raises HTTPException if not authenticated.
"""
token = None
if credentials:
token = credentials.credentials
elif token_query:
token = token_query
if not token:
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Not authenticated",
headers={"WWW-Authenticate": "Bearer"},
)
payload = decode_access_token(token)
if not payload:
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Invalid or expired token",
headers={"WWW-Authenticate": "Bearer"},
)
return {
"id": payload.get("sub"),
"email": payload.get("email"),
"account_type": payload.get("account_type"),
"organization_id": payload.get("organization_id")
}
async def get_current_user_with_db(
current_user: dict = Depends(get_current_user),
supabase: SupabaseService = Depends(get_supabase)
) -> dict:
"""
Enhanced version of get_current_user that fetches organization_id from DB
if it's missing in the JWT payload (e.g. newly linked account).
"""
if current_user.get("organization_id"):
return current_user
# If missing, check database
user_id = current_user["id"]
account_type = current_user["account_type"]
if account_type == AccountType.TEAM.value:
orgs = await supabase.select("organizations", filters={"owner_id": user_id})
if orgs:
current_user["organization_id"] = orgs[0]["id"]
elif account_type == AccountType.COACH.value:
# Coaches are in organizations_staff
staff = await supabase.select("organizations_staff", filters={"user_id": user_id})
if staff:
current_user["organization_id"] = staff[0]["organization_id"]
elif account_type == AccountType.PLAYER.value:
# Players are in players table
players = await supabase.select("players", filters={"user_id": user_id})
if players:
# Only use if they are part of an organization (not personal profile)
org_players = [p for p in players if p.get("organization_id")]
if org_players:
current_user["organization_id"] = org_players[0]["organization_id"]
return current_user
async def require_team_account(
current_user: dict = Depends(get_current_user_with_db),
) -> dict:
"""
Dependency that requires a TEAM or COACH account type.
Use for team-only endpoints.
"""
allowed_types = [AccountType.TEAM.value, AccountType.COACH.value]
if current_user.get("account_type") not in allowed_types:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="This endpoint requires a TEAM or COACH account",
)
return current_user
async def require_organization_admin(
current_user: dict = Depends(get_current_user_with_db),
) -> dict:
"""
Dependency that requires a TEAM account type (Organization Owner).
Use for critical administrative tasks like staff linking and settings.
"""
if current_user.get("account_type") != AccountType.TEAM.value:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="This operation requires organization owner administrative privileges",
)
return current_user
async def require_personal_account(
current_user: dict = Depends(get_current_user_with_db),
) -> dict:
"""
Dependency that requires a PERSONAL account type.
Use for personal-only endpoints.
"""
if current_user.get("account_type") != AccountType.PERSONAL.value:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="This endpoint requires a PERSONAL account",
)
return current_user
async def require_linked_account(
current_user: dict = Depends(get_current_user_with_db),
) -> dict:
"""
Dependency that requires the user to be linked to an organization.
"""
if not current_user.get("organization_id"):
# For TEAM accounts, they might not have organization_id in token yet if just created,
# but for players/coaches, they MUST be linked.
if current_user.get("account_type") != AccountType.TEAM.value:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="You must be linked to a team to access this feature",
)
return current_user
async def require_staff_member(
current_user: dict = Depends(get_current_user_with_db),
) -> dict:
"""
Dependency that requires the user to be a COACH or TEAM owner who is linked to an organization.
Used for features delegated to coaching staff (match upload, scheduling, stats).
"""
allowed_types = [AccountType.COACH.value, AccountType.TEAM.value]
if current_user.get("account_type") not in allowed_types:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="This feature is managed by the Team Owner or Coaching Staff",
)
if not current_user.get("organization_id"):
# For TEAM accounts, we might need to fetch the org_id if not in token
# but the check below is a safe guard.
if current_user.get("account_type") != AccountType.TEAM.value:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="Your account has not been linked to a team yet.",
)
return current_user
def require_owner_or_admin(resource_owner_id: str):
"""
Factory for dependency that checks if user owns a resource.
Usage:
@router.delete("/items/{item_id}")
async def delete_item(
item_id: str,
_: dict = Depends(require_owner_or_admin(item.owner_id))
):
...
"""
async def dependency(current_user: dict = Depends(get_current_user)) -> dict:
if current_user.get("id") != resource_owner_id:
raise HTTPException(
status_code=status.HTTP_403_FORBIDDEN,
detail="You don't have permission to access this resource",
)
return current_user
return dependency
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