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// Copyright (c) 2012 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/cert_verifier.h"
#include <algorithm>
#include "base/strings/string_util.h"
#include "build/build_config.h"
#include "net/base/features.h"
#include "net/cert/cert_verify_proc.h"
#include "net/cert/crl_set.h"
#include "third_party/boringssl/src/include/openssl/pool.h"
#include "third_party/boringssl/src/include/openssl/sha.h"
#if defined(OS_NACL)
#include "base/notreached.h"
#else
#include "net/cert/caching_cert_verifier.h"
#include "net/cert/coalescing_cert_verifier.h"
#include "net/cert/multi_threaded_cert_verifier.h"
#endif
namespace net {
CertVerifier::Config::Config() = default;
CertVerifier::Config::Config(const Config&) = default;
CertVerifier::Config::Config(Config&&) = default;
CertVerifier::Config::~Config() = default;
CertVerifier::Config& CertVerifier::Config::operator=(const Config&) = default;
CertVerifier::Config& CertVerifier::Config::operator=(Config&&) = default;
CertVerifier::RequestParams::RequestParams() = default;
CertVerifier::RequestParams::RequestParams(
scoped_refptr<X509Certificate> certificate,
const std::string& hostname,
int flags,
const std::string& ocsp_response,
const std::string& sct_list)
: certificate_(std::move(certificate)),
hostname_(hostname),
flags_(flags),
ocsp_response_(ocsp_response),
sct_list_(sct_list) {
// For efficiency sake, rather than compare all of the fields for each
// comparison, compute a hash of their values. This is done directly in
// this class, rather than as an overloaded hash operator, for efficiency's
// sake.
SHA256_CTX ctx;
SHA256_Init(&ctx);
SHA256_Update(&ctx, CRYPTO_BUFFER_data(certificate_->cert_buffer()),
CRYPTO_BUFFER_len(certificate_->cert_buffer()));
for (const auto& cert_handle : certificate_->intermediate_buffers()) {
SHA256_Update(&ctx, CRYPTO_BUFFER_data(cert_handle.get()),
CRYPTO_BUFFER_len(cert_handle.get()));
}
SHA256_Update(&ctx, hostname_.data(), hostname.size());
SHA256_Update(&ctx, &flags, sizeof(flags));
SHA256_Update(&ctx, ocsp_response.data(), ocsp_response.size());
SHA256_Update(&ctx, sct_list.data(), sct_list.size());
SHA256_Final(reinterpret_cast<uint8_t*>(
base::WriteInto(&key_, SHA256_DIGEST_LENGTH + 1)),
&ctx);
}
CertVerifier::RequestParams::RequestParams(const RequestParams& other) =
default;
CertVerifier::RequestParams::~RequestParams() = default;
bool CertVerifier::RequestParams::operator==(
const CertVerifier::RequestParams& other) const {
return key_ == other.key_;
}
bool CertVerifier::RequestParams::operator<(
const CertVerifier::RequestParams& other) const {
return key_ < other.key_;
}
// static
std::unique_ptr<CertVerifier> CertVerifier::CreateDefaultWithoutCaching(
scoped_refptr<CertNetFetcher> cert_net_fetcher) {
#if defined(OS_NACL)
NOTIMPLEMENTED();
return std::unique_ptr<CertVerifier>();
#else
scoped_refptr<CertVerifyProc> verify_proc;
#if defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_CHROMEOS)
verify_proc =
CertVerifyProc::CreateBuiltinVerifyProc(std::move(cert_net_fetcher));
#elif BUILDFLAG(BUILTIN_CERT_VERIFIER_FEATURE_SUPPORTED)
if (base::FeatureList::IsEnabled(features::kCertVerifierBuiltinFeature)) {
verify_proc =
CertVerifyProc::CreateBuiltinVerifyProc(std::move(cert_net_fetcher));
} else {
verify_proc =
CertVerifyProc::CreateSystemVerifyProc(std::move(cert_net_fetcher));
}
#else
verify_proc =
CertVerifyProc::CreateSystemVerifyProc(std::move(cert_net_fetcher));
#endif
return std::make_unique<MultiThreadedCertVerifier>(std::move(verify_proc));
#endif
}
// static
std::unique_ptr<CertVerifier> CertVerifier::CreateDefault(
scoped_refptr<CertNetFetcher> cert_net_fetcher) {
return std::make_unique<CachingCertVerifier>(
std::make_unique<CoalescingCertVerifier>(
CreateDefaultWithoutCaching(std::move(cert_net_fetcher))));
}
bool operator==(const CertVerifier::Config& lhs,
const CertVerifier::Config& rhs) {
return std::tie(
lhs.enable_rev_checking, lhs.require_rev_checking_local_anchors,
lhs.enable_sha1_local_anchors, lhs.disable_symantec_enforcement,
lhs.crl_set, lhs.additional_trust_anchors,
lhs.additional_untrusted_authorities) ==
std::tie(
rhs.enable_rev_checking, rhs.require_rev_checking_local_anchors,
rhs.enable_sha1_local_anchors, rhs.disable_symantec_enforcement,
rhs.crl_set, rhs.additional_trust_anchors,
rhs.additional_untrusted_authorities);
}
bool operator!=(const CertVerifier::Config& lhs,
const CertVerifier::Config& rhs) {
return !(lhs == rhs);
}
} // namespace net
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