|
1 | | -from fastapi import FastAPI, Depends, HTTPException, status |
| 1 | +from fastapi import FastAPI, Depends, HTTPException, status, Header |
2 | 2 | from sqlalchemy.orm import Session |
3 | 3 | from .db import get_db, init_db |
4 | | -from .models import User |
5 | | -from .schemas import UserCreate, UserLogin, Token |
| 4 | +from .models import User, PasswordResetToken, Ticket |
| 5 | +from .schemas import ( |
| 6 | + UserCreate, |
| 7 | + UserLogin, |
| 8 | + Token, |
| 9 | + LoginStep1Response, |
| 10 | + EnrollRequest, |
| 11 | + EnrollResponse, |
| 12 | + TOTPVerifyRequest, |
| 13 | + PasswordResetRequest, |
| 14 | + PasswordResetConfirm, |
| 15 | + TicketCreate, |
| 16 | + TicketResponse, |
| 17 | +) |
6 | 18 | from .auth import hash_password, verify_password, create_access_token |
7 | 19 | from fastapi.middleware.cors import CORSMiddleware |
| 20 | +from typing import Union |
| 21 | +import os |
| 22 | +import pyotp |
| 23 | +from datetime import datetime, timedelta |
| 24 | +import uuid |
| 25 | +import jwt |
8 | 26 |
|
9 | 27 | app = FastAPI() |
10 | 28 |
|
@@ -48,11 +66,141 @@ def register(user: UserCreate, db: Session = Depends(get_db)): |
48 | 66 | token = create_access_token(new_user.username) |
49 | 67 | return {"access_token": token, "token_type": "bearer"} |
50 | 68 |
|
51 | | -@app.post("/login", response_model=Token) |
| 69 | +@app.post("/login", response_model=Union[Token, LoginStep1Response]) |
52 | 70 | def login(credentials: UserLogin, db: Session = Depends(get_db)): |
53 | 71 | user = db.query(User).filter(User.username == credentials.username).first() |
54 | 72 | if not user or not verify_password(credentials.password, user.password): |
55 | 73 | raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid credentials") |
56 | 74 |
|
| 75 | + # If 2FA is enabled, require TOTP verification in a second step |
| 76 | + if user.is_2fa_enabled: |
| 77 | + return LoginStep1Response(requires2fa=True, message="TOTP required") |
| 78 | + |
| 79 | + token = create_access_token(user.username) |
| 80 | + return {"access_token": token, "token_type": "bearer"} |
| 81 | + |
| 82 | + |
| 83 | +@app.post("/2fa/enroll", response_model=EnrollResponse) |
| 84 | +def enroll_2fa(payload: EnrollRequest, db: Session = Depends(get_db)): |
| 85 | + """ |
| 86 | + Simple protection for dev tier: require user/password to enroll. |
| 87 | + In production, you would typically protect this with an authenticated session/JWT. |
| 88 | + """ |
| 89 | + user = db.query(User).filter(User.username == payload.username).first() |
| 90 | + if not user or not verify_password(payload.password, user.password): |
| 91 | + raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid credentials") |
| 92 | + |
| 93 | + # Generate or reuse a TOTP secret and mark 2FA enabled |
| 94 | + if not user.totp_secret: |
| 95 | + user.totp_secret = pyotp.random_base32() |
| 96 | + user.is_2fa_enabled = True |
| 97 | + db.add(user) |
| 98 | + db.commit() |
| 99 | + db.refresh(user) |
| 100 | + |
| 101 | + issuer = os.getenv("AUTH_SERVICE_ISSUER", "AuthService") |
| 102 | + totp = pyotp.TOTP(user.totp_secret) |
| 103 | + otpauth_uri = totp.provisioning_uri(name=user.username, issuer_name=issuer) |
| 104 | + return EnrollResponse(otpauth_uri=otpauth_uri) |
| 105 | + |
| 106 | + |
| 107 | +@app.post("/2fa/verify", response_model=Token) |
| 108 | +def verify_totp(payload: TOTPVerifyRequest, db: Session = Depends(get_db)): |
| 109 | + user = db.query(User).filter(User.username == payload.username).first() |
| 110 | + if not user or not user.is_2fa_enabled or not user.totp_secret: |
| 111 | + raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="2FA not enabled for user") |
| 112 | + |
| 113 | + totp = pyotp.TOTP(user.totp_secret) |
| 114 | + is_valid = totp.verify(payload.code, valid_window=1) |
| 115 | + if not is_valid: |
| 116 | + raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid TOTP code") |
| 117 | + |
57 | 118 | token = create_access_token(user.username) |
58 | 119 | return {"access_token": token, "token_type": "bearer"} |
| 120 | + |
| 121 | + |
| 122 | +# ---------------- Password Reset Flow (Dev Tier) ---------------- |
| 123 | + |
| 124 | +@app.post("/password-reset/request") |
| 125 | +def password_reset_request(payload: PasswordResetRequest, db: Session = Depends(get_db)): |
| 126 | + # Generic response to prevent user enumeration |
| 127 | + generic_msg = {"message": "If the account exists, a reset link has been sent."} |
| 128 | + |
| 129 | + user = db.query(User).filter(User.email == payload.email).first() |
| 130 | + if not user: |
| 131 | + return generic_msg |
| 132 | + |
| 133 | + # Generate token valid for 15 minutes |
| 134 | + token = str(uuid.uuid4()) |
| 135 | + expires_at = datetime.utcnow() + timedelta(minutes=15) |
| 136 | + db_token = PasswordResetToken(token=token, user_id=user.id, expires_at=expires_at, used=False) |
| 137 | + db.add(db_token) |
| 138 | + db.commit() |
| 139 | + |
| 140 | + # Dev Tier: print token to logs (simulate email) |
| 141 | + print(f"[DEV] Password reset token for {user.email}: {token} (expires {expires_at.isoformat()} UTC)") |
| 142 | + |
| 143 | + return generic_msg |
| 144 | + |
| 145 | + |
| 146 | +@app.post("/password-reset/confirm") |
| 147 | +def password_reset_confirm(payload: PasswordResetConfirm, db: Session = Depends(get_db)): |
| 148 | + now = datetime.utcnow() |
| 149 | + prt = ( |
| 150 | + db.query(PasswordResetToken) |
| 151 | + .filter(PasswordResetToken.token == payload.token) |
| 152 | + .first() |
| 153 | + ) |
| 154 | + if not prt or prt.used or prt.expires_at < now: |
| 155 | + raise HTTPException(status_code=400, detail="Invalid or expired token") |
| 156 | + |
| 157 | + user = db.query(User).filter(User.id == prt.user_id).first() |
| 158 | + if not user: |
| 159 | + raise HTTPException(status_code=400, detail="Invalid token") |
| 160 | + |
| 161 | + user.password = hash_password(payload.new_password) |
| 162 | + prt.used = True |
| 163 | + db.add(user) |
| 164 | + db.add(prt) |
| 165 | + db.commit() |
| 166 | + |
| 167 | + return {"message": "Password updated successfully"} |
| 168 | + |
| 169 | + |
| 170 | +# ---------------- Support Tickets (Dev Tier) ---------------- |
| 171 | + |
| 172 | +def get_current_user( |
| 173 | + db: Session = Depends(get_db), |
| 174 | + authorization: str | None = Header(default=None, alias="Authorization"), |
| 175 | +): |
| 176 | + if not authorization or not authorization.lower().startswith("bearer "): |
| 177 | + raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Not authenticated") |
| 178 | + token = authorization.split(" ", 1)[1].strip() |
| 179 | + try: |
| 180 | + # Decode to get username (sub) |
| 181 | + from .auth import SECRET_KEY, ALGORITHM |
| 182 | + |
| 183 | + data = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM]) |
| 184 | + username = data.get("sub") |
| 185 | + except Exception: |
| 186 | + raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token") |
| 187 | + |
| 188 | + user = db.query(User).filter(User.username == username).first() |
| 189 | + if not user: |
| 190 | + raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="User not found") |
| 191 | + return user |
| 192 | + |
| 193 | + |
| 194 | +@app.post("/support/ticket", response_model=TicketResponse) |
| 195 | +def create_ticket(payload: TicketCreate, user: User = Depends(get_current_user), db: Session = Depends(get_db)): |
| 196 | + ticket = Ticket(owner_id=user.id, title=payload.title, description=payload.description, status="open") |
| 197 | + db.add(ticket) |
| 198 | + db.commit() |
| 199 | + db.refresh(ticket) |
| 200 | + return ticket |
| 201 | + |
| 202 | + |
| 203 | +@app.get("/support/tickets", response_model=list[TicketResponse]) |
| 204 | +def list_tickets(user: User = Depends(get_current_user), db: Session = Depends(get_db)): |
| 205 | + tickets = db.query(Ticket).filter(Ticket.owner_id == user.id).order_by(Ticket.created_at.desc()).all() |
| 206 | + return tickets |
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