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// Copyright 2009 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/ssl/ssl_client_auth_cache.h"
#include <utility>
#include "base/functional/callback.h"
#include "base/time/time.h"
#include "net/cert/x509_certificate.h"
#include "net/ssl/ssl_private_key.h"
#include "net/ssl/test_ssl_private_key.h"
#include "net/test/cert_test_util.h"
#include "net/test/test_data_directory.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/boringssl/src/include/openssl/evp.h"
namespace net {
namespace {
scoped_refptr<SSLPrivateKey> MakeMockKey() {
bssl::UniquePtr<EVP_PKEY> pkey(EVP_PKEY_new());
return WrapOpenSSLPrivateKey(std::move(pkey));
}
} // namespace
TEST(SSLClientAuthCacheTest, LookupAddRemove) {
SSLClientAuthCache cache;
HostPortPair server1("foo1", 443);
scoped_refptr<X509Certificate> cert1(
ImportCertFromFile(GetTestCertsDirectory(), "ok_cert.pem"));
ASSERT_TRUE(cert1);
HostPortPair server2("foo2", 443);
scoped_refptr<X509Certificate> cert2(
ImportCertFromFile(GetTestCertsDirectory(), "expired_cert.pem"));
ASSERT_TRUE(cert2);
HostPortPair server3("foo3", 443);
scoped_refptr<X509Certificate> cert3(
ImportCertFromFile(GetTestCertsDirectory(), "root_ca_cert.pem"));
ASSERT_TRUE(cert3);
scoped_refptr<X509Certificate> cached_cert;
scoped_refptr<SSLPrivateKey> cached_pkey;
// Lookup non-existent client certificate.
cached_cert = nullptr;
EXPECT_FALSE(cache.Lookup(server1, &cached_cert, &cached_pkey));
// Add client certificate for server1.
cache.Add(server1, cert1.get(), MakeMockKey());
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(cert1, cached_cert);
// Add client certificate for server2.
cache.Add(server2, cert2.get(), MakeMockKey());
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(cert1.get(), cached_cert.get());
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server2, &cached_cert, &cached_pkey));
EXPECT_EQ(cert2, cached_cert);
// Overwrite the client certificate for server1.
cache.Add(server1, cert3.get(), MakeMockKey());
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(cert3, cached_cert);
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server2, &cached_cert, &cached_pkey));
EXPECT_EQ(cert2, cached_cert);
// Remove client certificate of server1.
cache.Remove(server1);
cached_cert = nullptr;
EXPECT_FALSE(cache.Lookup(server1, &cached_cert, &cached_pkey));
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server2, &cached_cert, &cached_pkey));
EXPECT_EQ(cert2, cached_cert);
// Remove non-existent client certificate.
cache.Remove(server1);
cached_cert = nullptr;
EXPECT_FALSE(cache.Lookup(server1, &cached_cert, &cached_pkey));
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server2, &cached_cert, &cached_pkey));
EXPECT_EQ(cert2, cached_cert);
}
// Check that if the server differs only by port number, it is considered
// a separate server.
TEST(SSLClientAuthCacheTest, LookupWithPort) {
SSLClientAuthCache cache;
HostPortPair server1("foo", 443);
scoped_refptr<X509Certificate> cert1(
ImportCertFromFile(GetTestCertsDirectory(), "ok_cert.pem"));
ASSERT_TRUE(cert1);
HostPortPair server2("foo", 8443);
scoped_refptr<X509Certificate> cert2(
ImportCertFromFile(GetTestCertsDirectory(), "expired_cert.pem"));
ASSERT_TRUE(cert2);
cache.Add(server1, cert1.get(), MakeMockKey());
cache.Add(server2, cert2.get(), MakeMockKey());
scoped_refptr<X509Certificate> cached_cert;
scoped_refptr<SSLPrivateKey> cached_pkey;
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(cert1.get(), cached_cert.get());
EXPECT_TRUE(cache.Lookup(server2, &cached_cert, &cached_pkey));
EXPECT_EQ(cert2.get(), cached_cert.get());
}
// Check that the a nullptr certificate, indicating the user has declined to
// send a certificate, is properly cached.
TEST(SSLClientAuthCacheTest, LookupNullPreference) {
SSLClientAuthCache cache;
HostPortPair server1("foo", 443);
scoped_refptr<X509Certificate> cert1(
ImportCertFromFile(GetTestCertsDirectory(), "ok_cert.pem"));
ASSERT_TRUE(cert1);
cache.Add(server1, nullptr, MakeMockKey());
scoped_refptr<X509Certificate> cached_cert(cert1);
scoped_refptr<SSLPrivateKey> cached_pkey;
// Make sure that |cached_cert| is updated to nullptr, indicating the user
// declined to send a certificate to |server1|.
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(nullptr, cached_cert.get());
// Remove the existing cached certificate.
cache.Remove(server1);
cached_cert = nullptr;
EXPECT_FALSE(cache.Lookup(server1, &cached_cert, &cached_pkey));
// Add a new preference for a specific certificate.
cache.Add(server1, cert1.get(), MakeMockKey());
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(cert1, cached_cert);
// Replace the specific preference with a nullptr certificate.
cache.Add(server1, nullptr, MakeMockKey());
cached_cert = nullptr;
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(nullptr, cached_cert.get());
}
// Check that the Clear() method removes all cache entries.
TEST(SSLClientAuthCacheTest, Clear) {
SSLClientAuthCache cache;
HostPortPair server1("foo", 443);
scoped_refptr<X509Certificate> cert1(
ImportCertFromFile(GetTestCertsDirectory(), "ok_cert.pem"));
ASSERT_TRUE(cert1);
cache.Add(server1, cert1.get(), MakeMockKey());
HostPortPair server2("foo2", 443);
cache.Add(server2, nullptr, MakeMockKey());
scoped_refptr<X509Certificate> cached_cert;
scoped_refptr<SSLPrivateKey> cached_pkey;
// Demonstrate the set up is correct.
EXPECT_TRUE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_EQ(cert1, cached_cert);
EXPECT_TRUE(cache.Lookup(server2, &cached_cert, &cached_pkey));
EXPECT_EQ(nullptr, cached_cert.get());
cache.Clear();
// Check that we no longer have entries for either server.
EXPECT_FALSE(cache.Lookup(server1, &cached_cert, &cached_pkey));
EXPECT_FALSE(cache.Lookup(server2, &cached_cert, &cached_pkey));
}
} // namespace net
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