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178d40d036
Add core security layer: - security.py: password hashing (bcrypt), JWT access/refresh tokens, SHA-256 token hashing, TOTP MFA (generate, verify, provisioning URI), plus passlib/bcrypt 5.x compatibility patch - dependencies.py: FastAPI deps for get_current_user (Bearer JWT) and require_admin (role check) - exceptions.py: domain-specific HTTP exceptions (CaseNotFound, DuplicateCase, InvalidImportFile, ICDValidation, AccountLocked, InvalidCredentials) - test_security.py: 9 tests covering all security functions Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
113 lines
3.6 KiB
Python
113 lines
3.6 KiB
Python
"""Tests for app.core.security — JWT, bcrypt, MFA/TOTP, token hashing."""
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import hashlib
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from datetime import datetime, timedelta, timezone
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import pyotp
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import pytest
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from jose import JWTError, jwt
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from app.config import get_settings
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from app.core.security import (
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create_access_token,
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create_refresh_token,
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decode_access_token,
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generate_mfa_secret,
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get_mfa_uri,
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hash_password,
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hash_token,
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verify_mfa_code,
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verify_password,
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)
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settings = get_settings()
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# ---------------------------------------------------------------------------
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# Password hashing
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# ---------------------------------------------------------------------------
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def test_hash_and_verify_password():
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"""Hashing then verifying the same password returns True; wrong one False."""
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hashed = hash_password("s3cret!")
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assert verify_password("s3cret!", hashed) is True
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assert verify_password("wrong-password", hashed) is False
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# ---------------------------------------------------------------------------
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# JWT access tokens
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# ---------------------------------------------------------------------------
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def test_create_and_decode_access_token():
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"""Round-trip: create a token and decode it, payload should match."""
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token = create_access_token(user_id=1, role="admin")
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payload = decode_access_token(token)
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assert payload["sub"] == "1"
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assert payload["role"] == "admin"
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assert "exp" in payload
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def test_expired_token_raises():
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"""A token with a negative expiry must fail to decode."""
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expire = datetime.now(timezone.utc) - timedelta(seconds=10)
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token = jwt.encode(
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{"sub": "1", "role": "admin", "exp": expire},
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settings.JWT_SECRET_KEY,
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algorithm=settings.JWT_ALGORITHM,
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)
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with pytest.raises(JWTError):
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decode_access_token(token)
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def test_invalid_token_raises():
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"""Decoding a garbage string must raise JWTError."""
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with pytest.raises(JWTError):
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decode_access_token("not.a.valid.jwt.token")
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# ---------------------------------------------------------------------------
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# Refresh / hash tokens
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# ---------------------------------------------------------------------------
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def test_create_refresh_token_uniqueness():
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"""Two refresh tokens should never collide."""
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t1 = create_refresh_token()
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t2 = create_refresh_token()
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assert t1 != t2
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assert len(t1) > 40 # url-safe base64 of 64 bytes
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def test_hash_token():
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"""hash_token must produce a consistent SHA-256 hex digest."""
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token = "test-token-value"
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expected = hashlib.sha256(token.encode()).hexdigest()
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assert hash_token(token) == expected
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# Deterministic: calling twice yields the same result
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assert hash_token(token) == hash_token(token)
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# ---------------------------------------------------------------------------
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# MFA / TOTP
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# ---------------------------------------------------------------------------
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def test_mfa_secret_and_verify():
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"""Generate a secret, produce the current OTP, verify it succeeds."""
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secret = generate_mfa_secret()
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assert len(secret) > 0
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totp = pyotp.TOTP(secret)
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current_code = totp.now()
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assert verify_mfa_code(secret, current_code) is True
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def test_mfa_wrong_code():
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"""A clearly wrong code must be rejected."""
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secret = generate_mfa_secret()
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assert verify_mfa_code(secret, "000000") is False or verify_mfa_code(secret, "999999") is False
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def test_mfa_uri_format():
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"""The provisioning URI must start with the otpauth scheme."""
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secret = generate_mfa_secret()
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uri = get_mfa_uri(secret, "user@example.com")
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assert uri.startswith("otpauth://totp/")
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assert "user%40example.com" in uri or "user@example.com" in uri
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