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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_WEB_PACKAGE_SIGNED_EXCHANGE_CERTIFICATE_CHAIN_H_
#define CONTENT_BROWSER_WEB_PACKAGE_SIGNED_EXCHANGE_CERTIFICATE_CHAIN_H_
#include <memory>
#include "base/containers/span.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_refptr.h"
#include "content/browser/web_package/signed_exchange_consts.h"
#include "content/common/content_export.h"
#include "services/network/public/cpp/spki_hash_set.h"
namespace base {
class CommandLine;
} // namespace base
namespace net {
class X509Certificate;
} // namespace net
namespace content {
class SignedExchangeDevToolsProxy;
// SignedExchangeCertificateChain contains all information in signed exchange
// certificate chain.
// https://wicg.github.io/webpackage/draft-yasskin-http-origin-signed-responses.html#cert-chain-format
class CONTENT_EXPORT SignedExchangeCertificateChain {
public:
// An utility class which holds a set of certificates whose errors should be
// ignored. It parses a comma-delimited list of base64-encoded SHA-256 SPKI
// fingerprints, and can query if a certificate is included in the set.
// CONTENT_EXPORT since it is used from the unit test.
class CONTENT_EXPORT IgnoreErrorsSPKIList {
public:
static bool ShouldIgnoreErrors(
scoped_refptr<net::X509Certificate> certificate);
explicit IgnoreErrorsSPKIList(const base::CommandLine& command_line);
IgnoreErrorsSPKIList(const IgnoreErrorsSPKIList&) = delete;
IgnoreErrorsSPKIList& operator=(const IgnoreErrorsSPKIList&) = delete;
~IgnoreErrorsSPKIList();
// Used for tests to override the instance. Returns the old instance, which
// should be restored when the test's done.
static std::unique_ptr<IgnoreErrorsSPKIList> SetInstanceForTesting(
std::unique_ptr<IgnoreErrorsSPKIList> p);
private:
FRIEND_TEST_ALL_PREFIXES(SignedExchangeCertificateChainTest,
IgnoreErrorsSPKIList);
static std::unique_ptr<IgnoreErrorsSPKIList>& GetInstance();
explicit IgnoreErrorsSPKIList(const std::string& spki_list);
void Parse(const std::string& spki_list);
bool ShouldIgnoreErrorsInternal(
scoped_refptr<net::X509Certificate> certificate);
network::SPKIHashSet hash_set_;
};
static std::unique_ptr<SignedExchangeCertificateChain> Parse(
base::span<const uint8_t> cert_response_body,
SignedExchangeDevToolsProxy* devtools_proxy);
// Regular consumers should use the static Parse() rather than directly
// calling this.
SignedExchangeCertificateChain(scoped_refptr<net::X509Certificate> cert,
const std::string& ocsp,
const std::string& sct);
~SignedExchangeCertificateChain();
const scoped_refptr<net::X509Certificate>& cert() const { return cert_; }
const std::string& ocsp() const { return ocsp_; }
const std::string& sct() const { return sct_; }
// Returns true if SPKI hash of |cert_| is included in the
// --ignore-certificate-errors-spki-list command line flag, and
// ContentBrowserClient::CanAcceptUntrustedExchangesIfNeeded() returns true.
bool ShouldIgnoreErrors() const;
private:
scoped_refptr<net::X509Certificate> cert_;
std::string ocsp_;
std::string sct_;
};
} // namespace content
#endif // CONTENT_BROWSER_WEB_PACKAGE_SIGNED_EXCHANGE_CERTIFICATE_CHAIN_H_
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