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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/cert/test_root_certs.h"
#include "base/files/file_path.h"
#include "build/build_config.h"
#include "net/base/features.h"
#include "net/base/net_errors.h"
#include "net/cert/cert_net_fetcher.h"
#include "net/cert/cert_status_flags.h"
#include "net/cert/cert_verify_proc.h"
#include "net/cert/cert_verify_result.h"
#include "net/cert/crl_set.h"
#include "net/cert/x509_certificate.h"
#include "net/log/net_log_with_source.h"
#include "net/test/cert_test_util.h"
#include "net/test/gtest_util.h"
#include "net/test/test_data_directory.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using net::test::IsOk;
namespace net {
namespace {
// The local test root certificate.
const char kRootCertificateFile[] = "root_ca_cert.pem";
// A certificate issued by the local test root for 127.0.0.1.
const char kGoodCertificateFile[] = "ok_cert.pem";
scoped_refptr<CertVerifyProc> CreateCertVerifyProc() {
#if BUILDFLAG(IS_FUCHSIA) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
return CertVerifyProc::CreateBuiltinVerifyProc(/*cert_net_fetcher=*/nullptr);
#elif BUILDFLAG(BUILTIN_CERT_VERIFIER_FEATURE_SUPPORTED)
if (base::FeatureList::IsEnabled(features::kCertVerifierBuiltinFeature)) {
return CertVerifyProc::CreateBuiltinVerifyProc(
/*cert_net_fetcher=*/nullptr);
} else {
return CertVerifyProc::CreateSystemVerifyProc(/*cert_net_fetcher=*/nullptr);
}
#else
return CertVerifyProc::CreateSystemVerifyProc(/*cert_net_fetcher=*/nullptr);
#endif
}
} // namespace
// Test basic functionality when adding from an existing X509Certificate.
TEST(TestRootCertsTest, AddFromPointer) {
scoped_refptr<X509Certificate> root_cert =
ImportCertFromFile(GetTestCertsDirectory(), kRootCertificateFile);
ASSERT_NE(static_cast<X509Certificate*>(nullptr), root_cert.get());
TestRootCerts* test_roots = TestRootCerts::GetInstance();
ASSERT_NE(static_cast<TestRootCerts*>(nullptr), test_roots);
EXPECT_TRUE(test_roots->IsEmpty());
{
ScopedTestRoot scoped_root(root_cert.get());
EXPECT_FALSE(test_roots->IsEmpty());
}
EXPECT_TRUE(test_roots->IsEmpty());
}
// Test that TestRootCerts actually adds the appropriate trust status flags
// when requested, and that the trusted status is cleared once the root is
// removed the TestRootCerts. This test acts as a canary/sanity check for
// the results of the rest of net_unittests, ensuring that the trust status
// is properly being set and cleared.
TEST(TestRootCertsTest, OverrideTrust) {
TestRootCerts* test_roots = TestRootCerts::GetInstance();
ASSERT_NE(static_cast<TestRootCerts*>(nullptr), test_roots);
EXPECT_TRUE(test_roots->IsEmpty());
scoped_refptr<X509Certificate> test_cert =
ImportCertFromFile(GetTestCertsDirectory(), kGoodCertificateFile);
ASSERT_NE(static_cast<X509Certificate*>(nullptr), test_cert.get());
// Test that the good certificate fails verification, because the root
// certificate should not yet be trusted.
int flags = 0;
CertVerifyResult bad_verify_result;
scoped_refptr<CertVerifyProc> verify_proc(CreateCertVerifyProc());
int bad_status = verify_proc->Verify(
test_cert.get(), "127.0.0.1", /*ocsp_response=*/std::string(),
/*sct_list=*/std::string(), flags, net::CRLSet::BuiltinCRLSet().get(),
CertificateList(), &bad_verify_result, NetLogWithSource());
EXPECT_NE(OK, bad_status);
EXPECT_NE(0u, bad_verify_result.cert_status & CERT_STATUS_AUTHORITY_INVALID);
// Add the root certificate and mark it as trusted.
scoped_refptr<X509Certificate> root_cert =
ImportCertFromFile(GetTestCertsDirectory(), kRootCertificateFile);
ASSERT_TRUE(root_cert);
ScopedTestRoot scoped_root(root_cert.get());
EXPECT_FALSE(test_roots->IsEmpty());
// Test that the certificate verification now succeeds, because the
// TestRootCerts is successfully imbuing trust.
CertVerifyResult good_verify_result;
int good_status = verify_proc->Verify(
test_cert.get(), "127.0.0.1", /*ocsp_response=*/std::string(),
/*sct_list=*/std::string(), flags, CRLSet::BuiltinCRLSet().get(),
CertificateList(), &good_verify_result, NetLogWithSource());
EXPECT_THAT(good_status, IsOk());
EXPECT_EQ(0u, good_verify_result.cert_status);
test_roots->Clear();
EXPECT_TRUE(test_roots->IsEmpty());
// Ensure that when the TestRootCerts is cleared, the trust settings
// revert to their original state, and don't linger. If trust status
// lingers, it will likely break other tests in net_unittests.
CertVerifyResult restored_verify_result;
int restored_status = verify_proc->Verify(
test_cert.get(), "127.0.0.1", /*ocsp_response=*/std::string(),
/*sct_list=*/std::string(), flags, CRLSet::BuiltinCRLSet().get(),
CertificateList(), &restored_verify_result, NetLogWithSource());
EXPECT_NE(OK, restored_status);
EXPECT_NE(0u,
restored_verify_result.cert_status & CERT_STATUS_AUTHORITY_INVALID);
EXPECT_EQ(bad_status, restored_status);
EXPECT_EQ(bad_verify_result.cert_status, restored_verify_result.cert_status);
}
TEST(TestRootCertsTest, Moveable) {
TestRootCerts* test_roots = TestRootCerts::GetInstance();
ASSERT_NE(static_cast<TestRootCerts*>(nullptr), test_roots);
EXPECT_TRUE(test_roots->IsEmpty());
scoped_refptr<X509Certificate> test_cert =
ImportCertFromFile(GetTestCertsDirectory(), kGoodCertificateFile);
ASSERT_NE(static_cast<X509Certificate*>(nullptr), test_cert.get());
int flags = 0;
CertVerifyResult bad_verify_result;
int bad_status;
scoped_refptr<CertVerifyProc> verify_proc(CreateCertVerifyProc());
{
// Empty ScopedTestRoot at outer scope has no effect.
ScopedTestRoot scoped_root_outer;
EXPECT_TRUE(test_roots->IsEmpty());
// Test that the good certificate fails verification, because the root
// certificate should not yet be trusted.
bad_status = verify_proc->Verify(
test_cert.get(), "127.0.0.1", /*ocsp_response=*/std::string(),
/*sct_list=*/std::string(), flags, net::CRLSet::BuiltinCRLSet().get(),
CertificateList(), &bad_verify_result, NetLogWithSource());
EXPECT_NE(OK, bad_status);
EXPECT_NE(0u,
bad_verify_result.cert_status & CERT_STATUS_AUTHORITY_INVALID);
{
// Add the root certificate and mark it as trusted.
scoped_refptr<X509Certificate> root_cert =
ImportCertFromFile(GetTestCertsDirectory(), kRootCertificateFile);
ASSERT_TRUE(root_cert);
ScopedTestRoot scoped_root_inner(root_cert.get());
EXPECT_FALSE(test_roots->IsEmpty());
// Test that the certificate verification now succeeds, because the
// TestRootCerts is successfully imbuing trust.
CertVerifyResult good_verify_result;
int good_status = verify_proc->Verify(
test_cert.get(), "127.0.0.1", /*ocsp_response=*/std::string(),
/*sct_list=*/std::string(), flags, CRLSet::BuiltinCRLSet().get(),
CertificateList(), &good_verify_result, NetLogWithSource());
EXPECT_THAT(good_status, IsOk());
EXPECT_EQ(0u, good_verify_result.cert_status);
EXPECT_FALSE(scoped_root_inner.IsEmpty());
EXPECT_TRUE(scoped_root_outer.IsEmpty());
// Move from inner scoped root to outer
scoped_root_outer = std::move(scoped_root_inner);
EXPECT_FALSE(test_roots->IsEmpty());
EXPECT_FALSE(scoped_root_outer.IsEmpty());
}
// After inner scoper was freed, test root is still trusted since ownership
// was moved to the outer scoper.
EXPECT_FALSE(test_roots->IsEmpty());
EXPECT_FALSE(scoped_root_outer.IsEmpty());
// Test that the certificate verification still succeeds, because the
// TestRootCerts is successfully imbuing trust.
CertVerifyResult good_verify_result;
int good_status = verify_proc->Verify(
test_cert.get(), "127.0.0.1", /*ocsp_response=*/std::string(),
/*sct_list=*/std::string(), flags, CRLSet::BuiltinCRLSet().get(),
CertificateList(), &good_verify_result, NetLogWithSource());
EXPECT_THAT(good_status, IsOk());
EXPECT_EQ(0u, good_verify_result.cert_status);
}
EXPECT_TRUE(test_roots->IsEmpty());
// Ensure that when the TestRootCerts is cleared, the trust settings
// revert to their original state, and don't linger. If trust status
// lingers, it will likely break other tests in net_unittests.
CertVerifyResult restored_verify_result;
int restored_status = verify_proc->Verify(
test_cert.get(), "127.0.0.1", /*ocsp_response=*/std::string(),
/*sct_list=*/std::string(), flags, CRLSet::BuiltinCRLSet().get(),
CertificateList(), &restored_verify_result, NetLogWithSource());
EXPECT_NE(OK, restored_status);
EXPECT_NE(0u,
restored_verify_result.cert_status & CERT_STATUS_AUTHORITY_INVALID);
EXPECT_EQ(bad_status, restored_status);
EXPECT_EQ(bad_verify_result.cert_status, restored_verify_result.cert_status);
}
// TODO(rsleevi): Add tests for revocation checking via CRLs, ensuring that
// TestRootCerts properly injects itself into the validation process. See
// http://crbug.com/63958
} // namespace net
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