pythonasyncioapiasyncfastapiframeworkjsonjson-schemaopenapiopenapi3pydanticpython-typespython3redocreststarletteswaggerswagger-uiuvicornweb
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94 lines
2.5 KiB
94 lines
2.5 KiB
from typing import Annotated, Union
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from fastapi import Depends, FastAPI, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
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from pydantic import BaseModel
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fake_users_db = {
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"johndoe": {
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"username": "johndoe",
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"full_name": "John Doe",
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"email": "[email protected]",
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"hashed_password": "fakehashedsecret",
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"disabled": False,
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},
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"alice": {
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"username": "alice",
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"full_name": "Alice Wonderson",
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"email": "[email protected]",
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"hashed_password": "fakehashedsecret2",
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"disabled": True,
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},
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}
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app = FastAPI()
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def fake_hash_password(password: str):
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return "fakehashed" + password
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
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class User(BaseModel):
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username: str
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email: Union[str, None] = None
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full_name: Union[str, None] = None
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disabled: Union[bool, None] = None
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class UserInDB(User):
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hashed_password: str
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def get_user(db, username: str):
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if username in db:
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user_dict = db[username]
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return UserInDB(**user_dict)
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def fake_decode_token(token):
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# This doesn't provide any security at all
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# Check the next version
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user = get_user(fake_users_db, token)
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return user
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async def get_current_user(token: Annotated[str, Depends(oauth2_scheme)]):
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user = fake_decode_token(token)
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if not user:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Invalid authentication credentials",
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headers={"WWW-Authenticate": "Bearer"},
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)
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return user
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async def get_current_active_user(
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current_user: Annotated[User, Depends(get_current_user)],
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):
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if current_user.disabled:
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raise HTTPException(status_code=400, detail="Inactive user")
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return current_user
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@app.post("/token")
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async def login(form_data: Annotated[OAuth2PasswordRequestForm, Depends()]):
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user_dict = fake_users_db.get(form_data.username)
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if not user_dict:
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raise HTTPException(status_code=400, detail="Incorrect username or password")
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user = UserInDB(**user_dict)
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hashed_password = fake_hash_password(form_data.password)
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if not hashed_password == user.hashed_password:
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raise HTTPException(status_code=400, detail="Incorrect username or password")
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return {"access_token": user.username, "token_type": "bearer"}
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@app.get("/users/me")
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async def read_users_me(
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current_user: Annotated[User, Depends(get_current_active_user)],
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):
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return current_user
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