feat: inelegant and buggy version of auth

analysis.py

@@ -1,130 +1,20 @@
-from datetime import timedelta, timezone, datetime
+from datetime import datetime
 import io
-from typing import Annotated
 import base64
-from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi import APIRouter
 from fastapi.responses import JSONResponse
 from pydantic import BaseModel, Field
-import jwt
-from jwt.exceptions import InvalidTokenError
 from sqlmodel import Session, func, select
 from sqlmodel.sql.expression import SelectOfScalar
-from db import Chemistry, Player, engine, User
+from db import Chemistry, Player, engine
 import networkx as nx
-from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
-from pydantic_settings import BaseSettings, SettingsConfigDict
-from passlib.context import CryptContext
 import matplotlib
 
 matplotlib.use("agg")
 import matplotlib.pyplot as plt
 
 
-class Config(BaseSettings):
-    secret_key: str = ""
-    access_token_expire_minutes: int = 30
-    model_config = SettingsConfigDict(
-        env_file=".env", env_file_encoding="utf-8", extra="ignore"
-    )
-
-
-config = Config()
-
-
-class Token(BaseModel):
-    access_token: str
-    token_type: str
-
-
-class TokenData(BaseModel):
-    username: str | None = None
-
-
-pwd_context = CryptContext(schemes=["argon2"], deprecated="auto")
-
-
-oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
-
-analysis_router = APIRouter(prefix="/analysis", dependencies=[Depends(oauth2_scheme)])
-
-
-def verify_password(plain_password, hashed_password):
-    return pwd_context.verify(plain_password, hashed_password)
-
-
-def get_password_hash(password):
-    return pwd_context.hash(password)
-
-
-def get_user(username: str):
-    with Session(engine) as session:
-        return session.exec(select(User).where(User.username == username)).one_or_none()
-
-
-def authenticate_user(username: str, password: str):
-    user = get_user(username)
-    if not user:
-        return False
-    if not verify_password(password, user.hashed_password):
-        return False
-    return user
-
-
-def create_access_token(data: dict, expires_delta: timedelta | None = None):
-    to_encode = data.copy()
-    if expires_delta:
-        expire = datetime.now(timezone.utc) + expires_delta
-    else:
-        expire = datetime.now(timezone.utc) + timedelta(minutes=15)
-    to_encode.update({"exp": expire})
-    encoded_jwt = jwt.encode(to_encode, config.secret_key, algorithm="HS256")
-    return encoded_jwt
-
-
-async def get_current_user(token: Annotated[str, Depends(oauth2_scheme)]):
-    credentials_exception = HTTPException(
-        status_code=status.HTTP_401_UNAUTHORIZED,
-        detail="Could not validate credentials",
-        headers={"WWW-Authenticate": "Bearer"},
-    )
-    try:
-        payload = jwt.decode(token, config.secret_key, algorithms=["HS256"])
-        username: str = payload.get("sub")
-        if username is None:
-            raise credentials_exception
-        token_data = TokenData(username=username)
-    except InvalidTokenError:
-        raise credentials_exception
-    user = get_user(fake_users_db, username=token_data.username)
-    if user is None:
-        raise credentials_exception
-    return user
-
-
-async def get_current_active_user(
-    current_user: Annotated[User, Depends(get_current_user)],
-):
-    if current_user.disabled:
-        raise HTTPException(status_code=400, detail="Inactive user")
-    return current_user
-
-
-@analysis_router.post("/token")
-async def login_for_access_token(
-    form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
-) -> Token:
-    user = authenticate_user(form_data.username, form_data.password)
-    if not user:
-        raise HTTPException(
-            status_code=status.HTTP_401_UNAUTHORIZED,
-            detail="Incorrect username or password",
-            headers={"WWW-Authenticate": "Bearer"},
-        )
-    access_token_expires = timedelta(minutes=config.access_token_expire_minutes)
-    access_token = create_access_token(
-        data={"sub": user.username}, expires_delta=access_token_expires
-    )
-    return Token(access_token=access_token, token_type="bearer")
+analysis_router = APIRouter(prefix="/analysis")
 
 
 C = Chemistry

main.py

@@ -1,4 +1,4 @@
-from fastapi import APIRouter, FastAPI, status
+from fastapi import APIRouter, Depends, FastAPI, status
 from fastapi.staticfiles import StaticFiles
 from db import Player, Team, Chemistry, MVPRanking, engine
 from sqlmodel import (
@@ -7,7 +7,12 @@ from sqlmodel import (
 )
 from fastapi.middleware.cors import CORSMiddleware
 from analysis import analysis_router
-from security import login_for_access_token, read_users_me, read_own_items
+from security import (
+    get_current_active_user,
+    login_for_access_token,
+    read_users_me,
+    read_own_items,
+)
 
 
 app = FastAPI(title="cutt")
@@ -92,7 +97,9 @@ class SPAStaticFiles(StaticFiles):
 
 api_router.include_router(player_router)
 api_router.include_router(team_router)
-api_router.include_router(analysis_router)
+api_router.include_router(
+    analysis_router, dependencies=[Depends(get_current_active_user)]
+)
 api_router.add_api_route("/token", endpoint=login_for_access_token, methods=["POST"])
 api_router.add_api_route("/users/me/", endpoint=read_users_me, methods=["GET"])
 api_router.add_api_route("/users/me/items/", endpoint=read_own_items, methods=["GET"])

package.json

@@ -27,7 +27,7 @@
     "eslint-plugin-react-hooks": "^5.0.0",
     "eslint-plugin-react-refresh": "^0.4.16",
     "globals": "^15.14.0",
-    "react-router-dom": "^7.1.5",
+    "react-router": "^7.1.5",
     "typescript": "~5.6.2",
     "typescript-eslint": "^8.18.2",
     "vite": "^6.0.5"

security.py

@@ -1,6 +1,6 @@
 from datetime import timedelta, timezone, datetime
 from typing import Annotated
-from fastapi import Depends, HTTPException, status
+from fastapi import Depends, HTTPException, Response, status
 from pydantic import BaseModel
 import jwt
 from jwt.exceptions import InvalidTokenError
@@ -34,7 +34,7 @@ class TokenData(BaseModel):
 pwd_context = CryptContext(schemes=["argon2"], deprecated="auto")
 
 
-oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/token")
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="api/token")
 
 
 def verify_password(plain_password, hashed_password):
@@ -102,7 +102,7 @@ async def get_current_active_user(
 
 
 async def login_for_access_token(
-    form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
+    form_data: Annotated[OAuth2PasswordRequestForm, Depends()], response: Response
 ) -> Token:
     user = authenticate_user(form_data.username, form_data.password)
     if not user:
@@ -115,6 +115,9 @@ async def login_for_access_token(
     access_token = create_access_token(
         data={"sub": user.username}, expires_delta=access_token_expires
     )
+    response.set_cookie(
+        "Authorization", value=f"Bearer {access_token}", httponly=True, samesite="none"
+    )
     return Token(access_token=access_token, token_type="bearer")
 
 

src/Analysis.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useState } from "react";
-import { baseUrl } from "./api";
+import { apiAuth, baseUrl, token } from "./api";
+import useAuthContext from "./AuthContext";
 
 //const debounce = <T extends (...args: any[]) => void>(
 //  func: T,
@@ -61,18 +62,14 @@ export default function Analysis() {
   // Function to generate and fetch the graph image
   async function loadImage() {
     setLoading(true);
-    await fetch(`${baseUrl}api/analysis/image`, {
-      method: "POST",
-      headers: {
-        "Content-Type": "application/json",
-      },
-      body: JSON.stringify(params)
-    })
-      .then((resp) => resp.json())
+    await apiAuth("analysis/image", params, "POST")
       .then((data) => {
         setImage(data.image);
         setLoading(false);
-      });
+      }).catch((e) => {
+        const { checkAuth } = useAuthContext();
+        checkAuth();
+      })
   }
 
   useEffect(() => {
@@ -92,6 +89,9 @@ export default function Analysis() {
     }
   }
 
+  const { user } = useAuthContext()!
+  console.log(`logged in as ${user.username}`);
+
   return (
     <div className="stack column dropdown">
       <button onClick={() => setShowControlPanel(!showControlPanel)}>

src/App.css

@@ -12,16 +12,17 @@ body {
   height: 100%;
 }
 
-footer {
-  font-size: x-small;
-}
-
 #root {
   max-width: 1280px;
   margin: 0 auto;
   padding: 8px;
 }
 
+footer {
+  font-size: x-small;
+}
+
+
 .grey {
   color: #444;
 }
@@ -37,6 +38,11 @@ footer {
   z-index: -1;
 }
 
+input {
+  padding: 0.2em 16px;
+  margin-bottom: 0.5em;
+}
+
 h1,
 h2,
 h3 {
@@ -120,7 +126,8 @@ h3 {
   margin: auto;
 }
 
-button {
+button,
+.button {
   font-weight: bold;
   font-size: large;
   color: aliceblue;

src/App.tsx

@@ -1,9 +1,10 @@
 import Analysis from "./Analysis";
 import "./App.css";
+import { AuthProvider } from "./AuthContext";
 import Footer from "./Footer";
 import Header from "./Header";
 import Rankings from "./Rankings";
-import { BrowserRouter, Routes, Route } from "react-router-dom";
+import { BrowserRouter, Routes, Route } from "react-router";
 
 function App() {
   //const [data, setData] = useState({ nodes: [], links: [] } as SociogramData);
@@ -17,7 +18,11 @@ function App() {
       <Header />
       <Routes>
         <Route index element={<Rankings />} />
-        <Route path="/analysis" element={<Analysis />} />
+        <Route path="/analysis" element={
+          <AuthProvider>
+            <Analysis />
+          </AuthProvider>
+        } />
       </Routes>
       <Footer />
     </BrowserRouter>

src/Rankings.tsx

@@ -334,7 +334,7 @@ export default function Rankings() {
             </button>
           </div>
 
-          <span className="grey">assign as many or as few players as you want :)</span>
+          <span className="grey">assign as many or as few players as you want and don't forget to <b>submit</b> (💾) when you're done :)</span>
 
           <div id="Chemistry" className="tabcontent">
             <Chemistry {...{ user, players }} />

src/api.ts

@@ -1,4 +1,10 @@
+import { useContext } from "react";
+import useAuthContext from "./AuthContext";
+import { createCookie } from "react-router";
+
 export const baseUrl = import.meta.env.VITE_BASE_URL as string;
+export const token = () => localStorage.getItem("access_token") as string;
+
 export default async function api(path: string, data: any): Promise<any> {
   const request = new Request(`${baseUrl}${path}/`, {
     method: "POST",
@@ -15,3 +21,84 @@ export default async function api(path: string, data: any): Promise<any> {
   }
   return response;
 }
+
+export async function apiAuth(path: string, data: any, method: string = "GET"): Promise<any> {
+
+  const req = new Request(`${baseUrl}api/${path}`, {
+    method: method, headers: {
+      "Authorization": `Bearer ${token()} `,
+      'Content-Type': 'application/json'
+    },
+    body: JSON.stringify(data),
+  });
+  let resp: Response;
+  try {
+    resp = await fetch(req);
+  } catch (e) {
+    throw new Error(`request failed: ${e}`);
+  }
+
+  if (!resp.ok) {
+    if (resp.status === 401) {
+      logout()
+      throw new Error('Unauthorized');
+    }
+  }
+  return resp.json()
+}
+
+export type User = {
+  username: string;
+  fullName: string;
+}
+
+export async function currentUser(): Promise<User> {
+  if (!token()) throw new Error("you have no access token")
+  const req = new Request(`${baseUrl}api/users/me/`, {
+    method: "GET", headers: {
+      "Authorization": `Bearer ${token()} `,
+      'Content-Type': 'application/json'
+    }
+  });
+  let resp: Response;
+  try {
+    resp = await fetch(req);
+  } catch (e) {
+    throw new Error(`request failed: ${e}`);
+  }
+
+  if (!resp.ok) {
+    if (resp.status === 401) {
+      logout()
+      throw new Error('Unauthorized');
+    }
+  }
+  return resp.json() as Promise<User>;
+}
+
+export type LoginRequest = {
+  username: string;
+  password: string;
+};
+export type Token = {
+  access_token: string;
+  token_type: string;
+};
+
+export const login = (req: LoginRequest) => {
+  fetch(`${baseUrl}api/token`, {
+    method: "POST", headers: {
+      'Content-Type': 'application/x-www-form-urlencoded',
+    }, body: new URLSearchParams(req).toString()
+  }).then(resp => resp.json() as unknown as Token).then(token => token ? localStorage.setItem("access_token", token.access_token) : console.log("token not acquired")).catch((e) => console.log("catch error " + e + " in login"));
+}
+
+export const cookielogin = (req: LoginRequest) => {
+  fetch(`${baseUrl}api/token`, {
+    method: "POST", headers: {
+      'Content-Type': 'application/x-www-form-urlencoded',
+    }, body: new URLSearchParams(req).toString()
+  }).then(resp => { createCookie(resp.headers.getSetCookie()) }).catch((e) => console.log("catch error " + e + " in login"));
+}
+
+export const logout = () => localStorage.removeItem("access_token");