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Security Tests for User Logout Flow
Tests comprehensive logout scenarios including:
- Valid logout with authenticated user
- Logout with invalid token
- Logout with expired token
- Session cleanup on logout
"""
# Set TESTING before any imports
import os
os.environ["TESTING"] = "1"
import pytest
from datetime import timedelta
from sqlalchemy.orm import Session
from core.models import User, RevokedToken
from core.auth import get_password_hash, create_access_token, SECRET_KEY
from jose import jwt
import time
class TestLogoutWithValidToken:
"""Test user logout with valid authentication"""
def test_logout_with_valid_token(self, client, db_session: Session):
"""Test logout succeeds with valid authentication token"""
# Create user
user = User(
email="logout@example.com",
password_hash=get_password_hash("SecurePass123!"),
first_name="Log",
last_name="Out",
status="active"
)
db_session.add(user)
db_session.commit()
# Login to get token
login_response = client.post(
"/api/auth/login",
json={
"username": "logout@example.com",
"password": "SecurePass123!"
}
)
token = login_response.json()["access_token"]
# Logout
response = client.post(
"/api/auth/logout",
headers={"Authorization": f"Bearer {token}"}
)
assert response.status_code == 200
data = response.json()
assert "success" in data or "message" in data
def test_logout_clears_client_token(self, client, db_session: Session):
"""Test logout instructs client to discard token"""
user = User(
email="cleartoken@example.com",
password_hash=get_password_hash("SecurePass123!"),
first_name="Clear",
last_name="Token",
status="active"
)
db_session.add(user)
db_session.commit()
# Login
login_response = client.post(
"/api/auth/login",
json={
"username": "cleartoken@example.com",
"password": "SecurePass123!"
}
)
token = login_response.json()["access_token"]
# Logout
response = client.post(
"/api/auth/logout",
headers={"Authorization": f"Bearer {token}"}
)
assert response.status_code == 200
# Try to use the token again (should fail if token is revoked)
# Note: Current implementation might not support token revocation
# This test documents current behavior
me_response = client.get(
"/api/auth/me",
headers={"Authorization": f"Bearer {token}"}
)
# May still work if no revocation mechanism is in place
assert me_response.status_code in [200, 401]
class TestLogoutWithInvalidToken:
"""Test logout fails with invalid authentication"""
def test_logout_with_missing_token(self, client):
"""Test logout fails without authentication token"""
response = client.post("/api/auth/logout")
# Should fail authentication
assert response.status_code in [401, 403]
def test_logout_with_malformed_token(self, client):
"""Test logout fails with malformed JWT token"""
response = client.post(
"/api/auth/logout",
headers={"Authorization": "Bearer invalid.jwt.token"}
)
assert response.status_code == 401
def test_logout_with_empty_token(self, client):
"""Test logout fails with empty bearer token"""
response = client.post(
"/api/auth/logout",
headers={"Authorization": "Bearer "}
)
assert response.status_code == 401
class TestLogoutWithExpiredToken:
"""Test logout with expired token"""
def test_logout_with_expired_token(self, client, db_session: Session):
"""Test logout fails with expired token"""
# Create user
user = User(
email="expired@example.com",
password_hash=get_password_hash("SecurePass123!"),
first_name="Exp",
last_name="ired",
status="active"
)
db_session.add(user)
db_session.commit()
# Create expired token (expiration in the past)
import time
expired_time = int(time.time()) - 3600 # 1 hour ago
# Manually create expired token
from jose import jwt
payload = {
"sub": str(user.id),
"exp": expired_time
}
expired_token = jwt.encode(payload, SECRET_KEY, algorithm="HS256")
# Try to logout with expired token
response = client.post(
"/api/auth/logout",
headers={"Authorization": f"Bearer {expired_token}"}
)
# Should fail authentication
assert response.status_code == 401
class TestLogoutTokenRevocation:
"""Test token revocation on logout (if implemented)"""
def test_logout_revokes_token_in_database(self, client, db_session: Session):
"""Test logout adds token to revoked tokens list"""
user = User(
email="revoke@example.com",
password_hash=get_password_hash("SecurePass123!"),
first_name="Rev",
last_name="oke",
status="active"
)
db_session.add(user)
db_session.commit()
# Login
login_response = client.post(
"/api/auth/login",
json={
"username": "revoke@example.com",
"password": "SecurePass123!"
}
)
token = login_response.json()["access_token"]
# Get JTI from token (if present)
try:
payload = jwt.decode(token, SECRET_KEY, algorithms=["HS256"])
jti = payload.get("jti")
except:
jti = None
# Logout
response = client.post(
"/api/auth/logout",
headers={"Authorization": f"Bearer {token}"}
)
assert response.status_code == 200
# Check if token was revoked in database
# Note: Current implementation may not have revocation
if jti:
revoked = db_session.query(RevokedToken).filter_by(jti=jti).first()
# This test documents current behavior
# Revoked token may or may not exist depending on implementation
class TestLogoutMultipleSessions:
"""Test logout with multiple active sessions"""
def test_logout_only_affects_current_session(self, client, db_session: Session):
"""Test logout doesn't invalidate other session tokens"""
user = User(
email="multisession@example.com",
password_hash=get_password_hash("SecurePass123!"),
first_name="Multi",
last_name="Session",
status="active"
)
db_session.add(user)
db_session.commit()
# Create two separate login sessions
login1 = client.post(
"/api/auth/login",
json={
"username": "multisession@example.com",
"password": "SecurePass123!"
}
)
token1 = login1.json()["access_token"]
login2 = client.post(
"/api/auth/login",
json={
"username": "multisession@example.com",
"password": "SecurePass123!"
}
)
token2 = login2.json()["access_token"]
# Logout with token1
logout_response = client.post(
"/api/auth/logout",
headers={"Authorization": f"Bearer {token1}"}
)
assert logout_response.status_code == 200
# token2 should still work (if not implementing global logout)
me_response = client.get(
"/api/auth/me",
headers={"Authorization": f"Bearer {token2}"}
)
# May still work - documents current behavior
assert me_response.status_code in [200, 401]
class TestLogoutSecurity:
"""Test security aspects of logout"""
def test_logout_prevents_csrf(self, client, db_session: Session):
"""Test logout endpoint is protected against CSRF"""
user = User(
email="csrf@example.com",
password_hash=get_password_hash("SecurePass123!"),
first_name="CS",
last_name="RF",
status="active"
)
db_session.add(user)
db_session.commit()
# Login
login_response = client.post(
"/api/auth/login",
json={
"username": "csrf@example.com",
"password": "SecurePass123!"
}
)
token = login_response.json()["access_token"]
# Try logout with GET (should be POST only)
response = client.get(
"/api/auth/logout",
headers={"Authorization": f"Bearer {token}"}
)
# GET should not be allowed or should fail
# 405 Method Not Allowed or 404
assert response.status_code in [405, 404]
def test_logout_no_sensitive_data_in_response(self, client, db_session: Session):
"""Test logout response doesn't leak sensitive data"""
user = User(
email="leak@example.com",
password_hash=get_password_hash("SecurePass123!"),
first_name="No",
last_name="Leak",
status="active"
)
db_session.add(user)
db_session.commit()
# Login
login_response = client.post(
"/api/auth/login",
json={
"username": "leak@example.com",
"password": "SecurePass123!"
}
)
token = login_response.json()["access_token"]
# Logout
logout_response = client.post(
"/api/auth/logout",
headers={"Authorization": f"Bearer {token}"}
)
assert logout_response.status_code == 200
data = logout_response.json()
# Should not contain sensitive information
assert "password" not in str(data).lower()
assert "token" not in data or "access_token" not in data
assert "secret" not in str(data).lower()
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