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102 lines
3.5 KiB
C++
102 lines
3.5 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/cert/test_root_certs.h"
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#include <cert.h>
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#include "base/logging.h"
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#include "base/macros.h"
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#include "crypto/nss_util.h"
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#include "net/cert/x509_certificate.h"
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#include "net/cert/x509_util_nss.h"
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namespace net {
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TestRootCerts::TrustEntry::TrustEntry(ScopedCERTCertificate certificate,
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const CERTCertTrust& trust)
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: certificate_(std::move(certificate)), trust_(trust) {}
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TestRootCerts::TrustEntry::~TrustEntry() = default;
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bool TestRootCerts::Add(X509Certificate* certificate) {
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ScopedCERTCertificate cert_handle =
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x509_util::CreateCERTCertificateFromX509Certificate(certificate);
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if (!cert_handle)
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return false;
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// Preserve the original trust bits so that they can be restored when
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// the certificate is removed.
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CERTCertTrust original_trust;
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SECStatus rv = CERT_GetCertTrust(cert_handle.get(), &original_trust);
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if (rv != SECSuccess) {
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// CERT_GetCertTrust will fail if the certificate does not have any
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// particular trust settings associated with it, and attempts to use
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// |original_trust| later to restore the original trust settings will not
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// cause the trust settings to be revoked. If the certificate has no
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// particular trust settings associated with it, mark the certificate as
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// a valid CA certificate with no specific trust.
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rv = CERT_DecodeTrustString(&original_trust, "c,c,c");
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}
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// Change the trust bits to unconditionally trust this certificate.
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CERTCertTrust new_trust;
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rv = CERT_DecodeTrustString(&new_trust, "TCPu,Cu,Tu");
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if (rv != SECSuccess) {
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LOG(ERROR) << "Cannot decode certificate trust string.";
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return false;
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}
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rv = CERT_ChangeCertTrust(CERT_GetDefaultCertDB(), cert_handle.get(),
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&new_trust);
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if (rv != SECSuccess) {
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LOG(ERROR) << "Cannot change certificate trust.";
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return false;
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}
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trust_cache_.push_back(
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std::make_unique<TrustEntry>(std::move(cert_handle), original_trust));
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return true;
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}
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void TestRootCerts::Clear() {
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// Restore the certificate trusts to what they were originally, before
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// Add() was called. Work from the rear first, since if a certificate was
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// added twice, the second entry's original trust status will be that of
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// the first entry, while the first entry contains the desired resultant
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// status.
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for (auto it = trust_cache_.rbegin(); it != trust_cache_.rend(); ++it) {
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CERTCertTrust original_trust = (*it)->trust();
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SECStatus rv = CERT_ChangeCertTrust(CERT_GetDefaultCertDB(),
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(*it)->certificate(),
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&original_trust);
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// DCHECK(), rather than LOG(), as a failure to restore the original
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// trust can cause flake or hard-to-trace errors in any unit tests that
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// occur after Clear() has been called.
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DCHECK_EQ(SECSuccess, rv) << "Cannot restore certificate trust.";
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}
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trust_cache_.clear();
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}
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bool TestRootCerts::IsEmpty() const {
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return trust_cache_.empty();
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}
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bool TestRootCerts::Contains(CERTCertificate* cert) const {
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for (const auto& item : trust_cache_)
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if (x509_util::IsSameCertificate(cert, item->certificate()))
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return true;
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return false;
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}
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TestRootCerts::~TestRootCerts() {
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Clear();
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}
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void TestRootCerts::Init() {
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crypto::EnsureNSSInit();
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}
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} // namespace net
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