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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/webui/certificate_manager/enterprise_cert_sources.h"
#include <vector>
#include "base/feature_list.h"
#include "base/functional/callback_helpers.h"
#include "chrome/browser/net/profile_network_context_service.h"
#include "chrome/browser/net/profile_network_context_service_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/certificate_dialogs.h"
#include "chrome/browser/ui/webui/certificate_manager/certificate_manager_handler.h"
#include "chrome/browser/ui/webui/certificate_manager/certificate_manager_utils.h"
#include "chrome/browser/ui/webui/certificate_viewer/certificate_viewer_webui.h"
#include "chrome/common/chrome_features.h"
#include "chrome/common/net/x509_certificate_model.h"
#include "components/server_certificate_database/server_certificate_database.pb.h"
#include "content/public/browser/web_contents.h"
#include "crypto/sha2.h"
#include "net/cert/x509_util.h"
EnterpriseCertSource::EnterpriseCertSource(std::string export_file_name)
: export_file_name_(std::move(export_file_name)) {}
void EnterpriseCertSource::GetCertificateInfos(
CertificateManagerPageHandler::GetCertificatesCallback callback) {
std::vector<certificate_manager_v2::mojom::SummaryCertInfoPtr> cert_infos;
for (const auto& cert : GetCerts()) {
x509_certificate_model::X509CertificateModel model(
net::x509_util::CreateCryptoBuffer(cert), "");
cert_infos.push_back(certificate_manager_v2::mojom::SummaryCertInfo::New(
model.HashCertSHA256(), model.GetTitle(),
/*is_deletable=*/false));
}
std::move(callback).Run(std::move(cert_infos));
}
void EnterpriseCertSource::ViewCertificate(
const std::string& sha256_hex_hash,
base::WeakPtr<content::WebContents> web_contents) {
if (!web_contents) {
return;
}
std::array<uint8_t, crypto::kSHA256Length> hash;
if (!base::HexStringToSpan(sha256_hex_hash, hash)) {
return;
}
for (const auto& cert : GetCerts()) {
if (hash == crypto::SHA256Hash(cert)) {
// Found the cert, open cert viewer dialog if able and then exit
// function.
ShowCertificateDialog(std::move(web_contents),
net::x509_util::CreateCryptoBuffer(cert));
return;
}
}
}
void EnterpriseCertSource::ExportCertificates(
base::WeakPtr<content::WebContents> web_contents) {
if (!web_contents) {
return;
}
std::vector<bssl::UniquePtr<CRYPTO_BUFFER>> export_certs;
for (auto const& cert : GetCerts()) {
export_certs.push_back(net::x509_util::CreateCryptoBuffer(cert));
}
ShowCertExportDialogSaveAll(web_contents.get(),
web_contents->GetTopLevelNativeWindow(),
std::move(export_certs), export_file_name_);
return;
}
EnterpriseTrustedCertSource::EnterpriseTrustedCertSource(Profile* profile)
: EnterpriseCertSource("trusted_certs.pem"), profile_(profile) {}
// Can't use the parent class's implementation because certs with additional
// constraints need to be handled differently.
void EnterpriseTrustedCertSource::ViewCertificate(
const std::string& sha256_hex_hash,
base::WeakPtr<content::WebContents> web_contents) {
if (!web_contents) {
return;
}
std::array<uint8_t, crypto::kSHA256Length> hash;
if (!base::HexStringToSpan(sha256_hex_hash, hash)) {
return;
}
ProfileNetworkContextService* service =
ProfileNetworkContextServiceFactory::GetForContext(profile_);
ProfileNetworkContextService::CertificatePoliciesForView policies =
service->GetCertificatePolicyForView();
std::vector<std::vector<uint8_t>> certs;
for (const auto& cert : policies.certificate_policies->trust_anchors) {
certs.push_back(cert);
}
for (const auto& cert :
policies.certificate_policies->trust_anchors_with_enforced_constraints) {
certs.push_back(cert);
}
for (auto const& cert : certs) {
if (hash == crypto::SHA256Hash(cert)) {
// Found the cert, open cert viewer dialog if able and then exit
// function.
ShowCertificateDialog(std::move(web_contents),
net::x509_util::CreateCryptoBuffer(cert));
return;
}
}
// Certs with additional constraints outside of the cert are handled
// differently so that the outside constraints can be shown.
for (const auto& cert_with_constraints :
policies.certificate_policies
->trust_anchors_with_additional_constraints) {
if (hash == crypto::SHA256Hash(cert_with_constraints->certificate)) {
// Found the cert, open cert viewer dialog if able and then exit
// function.
if (base::FeatureList::IsEnabled(
::features::kEnableCertManagementUIV2EditCerts)) {
chrome_browser_server_certificate_database::CertificateMetadata
metadata;
metadata.mutable_constraints()->mutable_dns_names()->Add(
cert_with_constraints->permitted_dns_names.begin(),
cert_with_constraints->permitted_dns_names.end());
for (auto const& cidr : cert_with_constraints->permitted_cidrs) {
net::IPAddress ip(cidr->ip);
net::IPAddress mask(cidr->mask);
if (!ip.IsValid() || !mask.IsValid()) {
continue;
}
chrome_browser_server_certificate_database::CIDR proto_cidr;
proto_cidr.set_ip(std::string(base::as_string_view(ip.bytes())));
proto_cidr.set_prefix_length(net::MaskPrefixLength(mask));
metadata.mutable_constraints()->mutable_cidrs()->Add(
std::move(proto_cidr));
}
metadata.mutable_trust()->set_trust_type(
chrome_browser_server_certificate_database::CertificateTrust::
CERTIFICATE_TRUST_TYPE_TRUSTED);
ShowCertificateDialog(std::move(web_contents),
net::x509_util::CreateCryptoBuffer(
cert_with_constraints->certificate),
std::move(metadata), base::NullCallback());
} else {
ShowCertificateDialog(std::move(web_contents),
net::x509_util::CreateCryptoBuffer(
cert_with_constraints->certificate));
}
return;
}
}
}
std::vector<std::vector<uint8_t>> EnterpriseTrustedCertSource::GetCerts() {
ProfileNetworkContextService* service =
ProfileNetworkContextServiceFactory::GetForContext(profile_);
ProfileNetworkContextService::CertificatePoliciesForView policies =
service->GetCertificatePolicyForView();
std::vector<std::vector<uint8_t>> certs;
for (const auto& cert : policies.certificate_policies->trust_anchors) {
certs.push_back(cert);
}
for (const auto& cert :
policies.certificate_policies->trust_anchors_with_enforced_constraints) {
certs.push_back(cert);
}
for (const auto& cert_with_constraints :
policies.certificate_policies
->trust_anchors_with_additional_constraints) {
certs.push_back(cert_with_constraints->certificate);
}
return certs;
}
EnterpriseIntermediateCertSource::EnterpriseIntermediateCertSource(
Profile* profile)
: EnterpriseCertSource("intermediate_certs.pem"), profile_(profile) {}
std::vector<std::vector<uint8_t>> EnterpriseIntermediateCertSource::GetCerts() {
ProfileNetworkContextService* service =
ProfileNetworkContextServiceFactory::GetForContext(profile_);
ProfileNetworkContextService::CertificatePoliciesForView policies =
service->GetCertificatePolicyForView();
std::vector<std::vector<uint8_t>> certs;
for (const auto& cert : policies.certificate_policies->all_certificates) {
certs.push_back(cert);
}
return certs;
}
EnterpriseDistrustedCertSource::EnterpriseDistrustedCertSource(Profile* profile)
: EnterpriseCertSource("distrusted_certs.pem"), profile_(profile) {}
std::vector<std::vector<uint8_t>> EnterpriseDistrustedCertSource::GetCerts() {
ProfileNetworkContextService* service =
ProfileNetworkContextServiceFactory::GetForContext(profile_);
ProfileNetworkContextService::CertificatePoliciesForView policies =
service->GetCertificatePolicyForView();
std::vector<std::vector<uint8_t>> certs;
for (const auto& cert : policies.full_distrusted_certs) {
certs.push_back(cert);
}
return certs;
}
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