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83 lines
3.2 KiB
Python
83 lines
3.2 KiB
Python
"""Tests for the preventive SSL CA bundle guard."""
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from pathlib import Path
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import certifi
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import pytest
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from agent.errors import SSLConfigurationError
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from agent.ssl_guard import verify_ca_bundle, verify_ca_bundle_with_fallback
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def test_healthy_bundle_passes(monkeypatch):
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"""A real, non-empty certifi bundle must verify without raising."""
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for key in ("HERMES_CA_BUNDLE", "SSL_CERT_FILE", "REQUESTS_CA_BUNDLE", "CURL_CA_BUNDLE"):
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monkeypatch.delenv(key, raising=False)
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bundle = Path(certifi.where())
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assert bundle.exists()
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assert bundle.stat().st_size > 1024
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verify_ca_bundle()
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def test_missing_certifi_bundle_raises_ssl_error(monkeypatch, tmp_path):
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"""Point certifi.where() at a non-existent path; expect a clear error."""
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fake = tmp_path / "nope.pem"
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monkeypatch.setattr(certifi, "where", lambda: str(fake))
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with pytest.raises(SSLConfigurationError) as exc:
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verify_ca_bundle()
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message = str(exc.value).lower()
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assert "certifi" in message
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assert "missing" in message
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assert "force-reinstall" in message
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def test_empty_certifi_bundle_raises_ssl_error(monkeypatch, tmp_path):
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"""Empty file is treated as a corrupted bundle."""
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fake = tmp_path / "empty.pem"
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fake.write_bytes(b"")
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monkeypatch.setattr(certifi, "where", lambda: str(fake))
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with pytest.raises(SSLConfigurationError) as exc:
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verify_ca_bundle()
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assert "too small" in str(exc.value).lower()
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@pytest.mark.parametrize("env_var", ["HERMES_CA_BUNDLE", "SSL_CERT_FILE", "REQUESTS_CA_BUNDLE", "CURL_CA_BUNDLE"])
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def test_missing_explicit_ca_bundle_env_raises_before_httpx(monkeypatch, tmp_path, env_var):
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"""Bad CA-bundle env vars should be reported before OpenAI/httpx init."""
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fake = tmp_path / "missing.pem"
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monkeypatch.setenv(env_var, str(fake))
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with pytest.raises(SSLConfigurationError) as exc:
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verify_ca_bundle()
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message = str(exc.value)
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assert env_var in message
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assert str(fake) in message
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assert "force-reinstall" in message
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def test_invalid_explicit_ca_bundle_env_raises(monkeypatch, tmp_path):
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"""An existing but invalid explicit bundle should get a user-facing error."""
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fake = tmp_path / "broken.pem"
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fake.write_text("not a cert bundle", encoding="utf-8")
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monkeypatch.setenv("SSL_CERT_FILE", str(fake))
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with pytest.raises(SSLConfigurationError) as exc:
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verify_ca_bundle()
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assert "cannot be loaded" in str(exc.value)
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def test_verify_ca_bundle_with_fallback_keeps_same_contract(monkeypatch, tmp_path):
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"""The compatibility wrapper still rejects broken explicit CA paths."""
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fake = tmp_path / "missing.pem"
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monkeypatch.setenv("SSL_CERT_FILE", str(fake))
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with pytest.raises(SSLConfigurationError):
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verify_ca_bundle_with_fallback()
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@pytest.mark.parametrize("value", ["1", "true", "TRUE", "yes", "on"])
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def test_skip_env_var_bypasses_guard(monkeypatch, tmp_path, value):
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"""HERMES_SKIP_SSL_GUARD is an intentional escape hatch for managed trust stores."""
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fake = tmp_path / "missing.pem"
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monkeypatch.setenv("HERMES_SKIP_SSL_GUARD", value)
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monkeypatch.setenv("SSL_CERT_FILE", str(fake))
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verify_ca_bundle()
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verify_ca_bundle_with_fallback()
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