168 lines
4.1 KiB
Python
168 lines
4.1 KiB
Python
"""Security utilities for VoIdea.
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JWT handling, password hashing, and authentication helpers.
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"""
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from datetime import datetime, timedelta, timezone
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from typing import Any
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from jose import JWTError, jwt
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from passlib.context import CryptContext
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from app.core.config import get_settings
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settings = get_settings()
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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def get_password_hash(password: str) -> str:
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"""Hash password using bcrypt."""
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return pwd_context.hash(password)
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""Verify password against hash."""
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return pwd_context.verify(plain_password, hashed_password)
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def create_access_token(
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data: dict[str, Any],
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expires_delta: timedelta | None = None,
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) -> str:
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"""Create JWT access token.
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Args:
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data: Payload data to encode in token
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expires_delta: Optional custom expiration time
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Returns:
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Encoded JWT token string
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"""
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.now(timezone.utc) + expires_delta
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else:
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expire = datetime.now(timezone.utc) + timedelta(
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minutes=settings.jwt_access_token_expire_minutes
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)
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to_encode.update({
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"exp": expire,
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"iat": datetime.now(timezone.utc),
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"type": "access",
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})
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encoded_jwt = jwt.encode(
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to_encode,
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settings.jwt_secret_key,
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algorithm=settings.jwt_algorithm,
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)
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return encoded_jwt
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def create_refresh_token(
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data: dict[str, Any],
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expires_delta: timedelta | None = None,
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) -> str:
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"""Create JWT refresh token.
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Args:
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data: Payload data to encode in token
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expires_delta: Optional custom expiration time
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Returns:
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Encoded JWT refresh token string
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"""
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.now(timezone.utc) + expires_delta
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else:
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expire = datetime.now(timezone.utc) + timedelta(
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days=settings.jwt_refresh_token_expire_days
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)
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to_encode.update({
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"exp": expire,
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"iat": datetime.now(timezone.utc),
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"type": "refresh",
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})
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encoded_jwt = jwt.encode(
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to_encode,
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settings.jwt_secret_key,
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algorithm=settings.jwt_algorithm,
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)
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return encoded_jwt
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def create_reset_token(data: dict[str, Any]) -> str:
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"""Create JWT password reset token (1 hour expiry, separate key).
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Args:
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data: Payload data to encode in token
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Returns:
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Encoded JWT reset token string
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"""
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to_encode = data.copy()
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expire = datetime.now(timezone.utc) + timedelta(hours=1)
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to_encode.update({
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"exp": expire,
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"iat": datetime.now(timezone.utc),
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"type": "reset",
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})
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secret = settings.jwt_reset_secret_key or settings.jwt_secret_key
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return jwt.encode(to_encode, secret, algorithm=settings.jwt_algorithm)
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def decode_token(
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token: str,
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secret: str | None = None,
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) -> dict[str, Any] | None:
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"""Decode and verify JWT token.
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Args:
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token: JWT token string
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secret: Optional secret key (defaults to jwt_secret_key)
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Returns:
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Decoded payload or None if invalid
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"""
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try:
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payload = jwt.decode(
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token,
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secret or settings.jwt_secret_key,
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algorithms=[settings.jwt_algorithm],
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)
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return payload
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except JWTError:
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return None
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def decode_reset_token(token: str) -> dict[str, Any] | None:
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"""Decode and verify password reset JWT token (uses reset secret key).
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Args:
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token: JWT reset token string
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Returns:
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Decoded payload or None if invalid
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"""
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secret = settings.jwt_reset_secret_key or settings.jwt_secret_key
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return decode_token(token, secret)
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def verify_token_type(token_data: dict[str, Any], expected_type: str) -> bool:
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"""Verify token type.
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Args:
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token_data: Decoded token payload
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expected_type: Expected token type (access/refresh/reset)
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Returns:
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True if token type matches
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"""
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return token_data.get("type") == expected_type |