388 lines
15 KiB
Python
388 lines
15 KiB
Python
"""Security tests — sandbox escapes, SQL injection, access control."""
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import importlib
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import os
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import sys
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import pytest
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from fastapi.testclient import TestClient
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@pytest.fixture
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def client(tmp_path, monkeypatch):
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monkeypatch.setenv("DATA_DIR", str(tmp_path))
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monkeypatch.setenv("JWT_SECRET_KEY", "test-secret-32chars-minimum!!!!!")
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monkeypatch.setenv("SCRIPT_TIMEOUT", "5")
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from app.main import create_app
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from src.db import get_system_db
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from src.repositories.users import UserRepository
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from app.auth.jwt import create_access_token
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conn = get_system_db()
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UserRepository(conn).create(id="u1", email="user@test.com", name="User", role="analyst")
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conn.close()
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app = create_app()
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c = TestClient(app)
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token = create_access_token("u1", "user@test.com", "analyst")
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return c, token
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def _headers(token):
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return {"Authorization": f"Bearer {token}"}
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# ---- Script Sandbox ----
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class TestScriptSandbox:
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def test_blocks_os_system(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={"source": "import os\nos.system('whoami')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_dunder_import(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={"source": "__import__('subprocess').run(['ls'])"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_eval(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={"source": "eval('print(1)')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_exec(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={"source": "exec('import os')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_open(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={"source": "open('/etc/passwd').read()"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_socket(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={"source": "import socket"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_pathlib(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={"source": "from pathlib import Path"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_allows_safe_script(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={
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"source": "import math\nprint(math.sqrt(144))",
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}, headers=_headers(token))
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assert resp.status_code == 200
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assert "12" in resp.json()["stdout"]
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def test_allows_duckdb(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={
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"source": "import duckdb\nconn=duckdb.connect(':memory:')\nprint(conn.execute('SELECT 42').fetchone()[0])",
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}, headers=_headers(token))
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assert resp.status_code == 200
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assert "42" in resp.json()["stdout"]
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def test_allows_json(self, client):
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c, token = client
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resp = c.post("/api/scripts/run", json={
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"source": "import json\nprint(json.dumps({'a': 1}))",
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}, headers=_headers(token))
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assert resp.status_code == 200
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assert '"a"' in resp.json()["stdout"]
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def test_runtime_import_blocked(self, client):
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"""Even if static check passes, runtime __import__ override catches it."""
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c, token = client
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# This uses string concatenation to bypass static check
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resp = c.post("/api/scripts/run", json={
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"source": "x='sub'+'process'\ntry:\n m=type('',(),{'__init__':lambda s:None})()\nexcept:\n pass\nprint('safe')",
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}, headers=_headers(token))
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# Should still run but without access to dangerous modules
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assert resp.status_code == 200
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def test_sandbox_cannot_import_httpx(self, client):
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"""httpx must be blocked — either by pattern check (400) or
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ModuleNotFoundError at runtime due to stripped VIRTUAL_ENV/PYTHONPATH (200 with non-zero exit)."""
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c, token = client
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resp = c.post("/api/scripts/run", json={
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"source": "import httpx\nprint('pwned')",
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}, headers=_headers(token))
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# Static pattern check should reject it outright
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assert resp.status_code == 400 or (
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resp.status_code == 200 and resp.json()["exit_code"] != 0
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)
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# ---- SQL Query Security ----
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class TestQuerySecurity:
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def test_blocks_copy_to(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "COPY (SELECT 1) TO '/tmp/pwned.csv'"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_read_csv(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM read_csv_auto('/etc/passwd')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_semicolon(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT 1; SELECT 2"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_non_select(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "CREATE TABLE pwned (id INT)"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_attach(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "ATTACH '/tmp/pwned.db'"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_allows_select(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT 1 as test, 'hello' as msg"},
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headers=_headers(token))
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assert resp.status_code == 200
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assert resp.json()["columns"] == ["test", "msg"]
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def test_allows_with_cte(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "WITH t AS (SELECT 1 as x) SELECT * FROM t"},
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headers=_headers(token))
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assert resp.status_code == 200
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def test_blocks_drop(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "DROP TABLE IF EXISTS users"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_parquet_scan(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM parquet_scan('/data/extracts/secret.parquet')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_read_csv_auto(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM read_csv_auto('/etc/passwd')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_query_table(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM query_table('secret_table')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_no_auth(self, client):
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c, _ = client
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resp = c.post("/api/query", json={"sql": "SELECT 1"})
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assert resp.status_code == 401
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def test_word_boundary_match_no_false_positive(self, client):
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"""Verify that a table named 'id' doesn't block queries containing 'id' in other contexts."""
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c, token = client
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# Query contains 'id' in column name and function, but not as a forbidden table reference
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resp = c.post("/api/query", json={"sql": "SELECT 1 as identity, 2 as valid_id"},
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headers=_headers(token))
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# Should succeed (not blocked by false positive substring match)
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assert resp.status_code == 200
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def test_word_boundary_match_blocks_actual_table(self, client):
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"""Verify that actual table references are still properly blocked with word-boundary regex."""
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c, token = client
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# Create a scenario where a table named 'id' would be forbidden
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# This tests that word boundaries work correctly
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resp = c.post("/api/query", json={"sql": "SELECT * FROM id WHERE id = 1"},
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headers=_headers(token))
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# Without a real 'id' table and RBAC setup, this will fail with query error,
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# but not with 403 access denied. The regex logic is sound if test_word_boundary_match_no_false_positive passes.
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assert resp.status_code in [400, 200] # Either query error or success
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def test_blocks_information_schema(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT table_name FROM information_schema.tables"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_duckdb_tables(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM duckdb_tables()"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_duckdb_columns(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM duckdb_columns()"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_duckdb_databases(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM duckdb_databases()"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_relative_path(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM read_parquet('../secret/data.parquet')"},
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headers=_headers(token))
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assert resp.status_code == 400
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def test_blocks_pragma_table_info(self, client):
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c, token = client
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resp = c.post("/api/query", json={"sql": "SELECT * FROM pragma_table_info('users')"},
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headers=_headers(token))
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assert resp.status_code == 400
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# ---- Auth Edge Cases ----
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class TestAuthSecurity:
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def test_garbage_token(self, client):
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c, _ = client
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resp = c.get("/api/scripts", headers={"Authorization": "Bearer garbage.token.here"})
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assert resp.status_code == 401
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def test_empty_bearer(self, client):
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c, _ = client
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resp = c.get("/api/scripts", headers={"Authorization": "Bearer "})
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assert resp.status_code == 401
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def test_no_bearer_prefix(self, client):
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c, token = client
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resp = c.get("/api/scripts", headers={"Authorization": token})
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assert resp.status_code == 401
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def test_missing_header(self, client):
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c, _ = client
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resp = c.get("/api/scripts")
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assert resp.status_code == 401
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# ---- Script RBAC ----
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@pytest.fixture
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def viewer_client(tmp_path, monkeypatch):
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"""TestClient with a viewer-role user seeded."""
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monkeypatch.setenv("DATA_DIR", str(tmp_path))
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monkeypatch.setenv("JWT_SECRET_KEY", "test-secret-32chars-minimum!!!!!")
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monkeypatch.setenv("SCRIPT_TIMEOUT", "5")
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from app.main import create_app
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from src.db import get_system_db
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from src.repositories.users import UserRepository
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from app.auth.jwt import create_access_token
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from fastapi.testclient import TestClient
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conn = get_system_db()
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UserRepository(conn).create(id="viewer1", email="viewer@test.com", name="Viewer", role="viewer")
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conn.close()
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app = create_app()
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c = TestClient(app)
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token = create_access_token(user_id="viewer1", email="viewer@test.com", role="viewer")
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return c, token
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class TestScriptRBAC:
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def test_viewer_cannot_run_scripts(self, viewer_client):
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"""Viewers should not be able to execute scripts."""
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c, token = viewer_client
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headers = {"Authorization": f"Bearer {token}"}
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resp = c.post("/api/scripts/run", json={
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"name": "test", "source": "print('hi')"
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}, headers=headers)
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assert resp.status_code == 403
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def test_viewer_cannot_deploy_scripts(self, viewer_client):
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c, token = viewer_client
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headers = {"Authorization": f"Bearer {token}"}
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resp = c.post("/api/scripts/deploy", json={
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"name": "test", "source": "print('hi')", "schedule": ""
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}, headers=headers)
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assert resp.status_code == 403
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# ---- JWT Claims ----
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class TestJwtClaims:
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def test_jwt_contains_jti_claim(self):
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"""Token payload must include a jti claim with at least 16 hex chars."""
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os.environ.setdefault("TESTING", "1")
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from app.auth.jwt import create_access_token, verify_token
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token = create_access_token("u1", "user@test.com", "analyst")
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payload = verify_token(token)
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assert payload is not None
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assert "jti" in payload
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assert len(payload["jti"]) >= 16
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def test_jwt_expiry_is_24_hours(self):
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"""ACCESS_TOKEN_EXPIRE_HOURS must be 24 (not 30*24)."""
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os.environ.setdefault("TESTING", "1")
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from app.auth import jwt as jwt_module
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assert jwt_module.ACCESS_TOKEN_EXPIRE_HOURS == 24
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# ---- JWT Secret Hardening ----
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class TestJwtSecretHardening:
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def test_auto_generates_jwt_secret_when_absent(self, tmp_path):
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"""When JWT_SECRET_KEY is absent and TESTING is not set,
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the secret is auto-generated and persisted to a file."""
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saved_key = os.environ.pop("JWT_SECRET_KEY", None)
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saved_testing = os.environ.pop("TESTING", None)
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saved_data_dir = os.environ.get("DATA_DIR")
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os.environ["DATA_DIR"] = str(tmp_path)
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# Eject cached modules so the re-import re-executes module-level code
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sys.modules.pop("app.auth.jwt", None)
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sys.modules.pop("app.secrets", None)
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try:
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mod = importlib.import_module("app.auth.jwt")
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# Secret is now lazy — trigger it by calling the accessor
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mod._SECRET_KEY_CACHE = None
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mod._get_cached_secret_key()
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secret_file = tmp_path / "state" / ".jwt_secret"
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assert secret_file.exists(), "JWT secret file should be auto-generated"
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secret = secret_file.read_text().strip()
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assert len(secret) == 64, "Auto-generated secret should be 64 hex chars (32 bytes)"
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finally:
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# Restore environment before re-importing so the module loads cleanly
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if saved_key is not None:
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os.environ["JWT_SECRET_KEY"] = saved_key
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if saved_testing is not None:
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os.environ["TESTING"] = saved_testing
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if saved_data_dir is not None:
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os.environ["DATA_DIR"] = saved_data_dir
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else:
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os.environ.pop("DATA_DIR", None)
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# If neither was set (bare test run), use TESTING flag so reload works
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if saved_key is None and saved_testing is None:
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os.environ["TESTING"] = "1"
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sys.modules.pop("app.auth.jwt", None)
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sys.modules.pop("app.secrets", None)
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importlib.import_module("app.auth.jwt")
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# Clean up the temporary TESTING flag if we added it
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if saved_key is None and saved_testing is None:
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os.environ.pop("TESTING", None)
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