Refactor client cert private key handling.

net/ssl/client_cert_identity_test_util.cc

+// Copyright 2017 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/ssl/client_cert_identity_test_util.h"
+
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/memory/ptr_util.h"
+#include "net/ssl/ssl_private_key.h"
+#include "net/ssl/test_ssl_private_key.h"
+#include "net/test/cert_test_util.h"
+#include "third_party/boringssl/src/include/openssl/bytestring.h"
+#include "third_party/boringssl/src/include/openssl/evp.h"
+
+namespace net {
+
+FakeClientCertIdentity::FakeClientCertIdentity(
+    scoped_refptr<X509Certificate> cert,
+    scoped_refptr<SSLPrivateKey> key)
+    : ClientCertIdentity(std::move(cert)), key_(std::move(key)) {}
+
+FakeClientCertIdentity::~FakeClientCertIdentity() = default;
+
+// static
+std::unique_ptr<FakeClientCertIdentity>
+FakeClientCertIdentity::CreateFromCertAndKeyFiles(
+    const base::FilePath& dir,
+    const std::string& cert_filename,
+    const std::string& key_filename) {
+  scoped_refptr<X509Certificate> cert =
+      net::ImportCertFromFile(dir, cert_filename);
+  if (!cert)
+    return nullptr;
+
+  std::string pkcs8;
+  if (!base::ReadFileToString(dir.AppendASCII(key_filename), &pkcs8))
+    return nullptr;
+
+  CBS cbs;
+  CBS_init(&cbs, reinterpret_cast<const uint8_t*>(pkcs8.data()), pkcs8.size());
+  bssl::UniquePtr<EVP_PKEY> pkey(EVP_parse_private_key(&cbs));
+  if (!pkey || CBS_len(&cbs) != 0)
+    return nullptr;
+
+  scoped_refptr<SSLPrivateKey> ssl_private_key =
+      WrapOpenSSLPrivateKey(std::move(pkey));
+  if (!ssl_private_key)
+    return nullptr;
+
+  return base::MakeUnique<FakeClientCertIdentity>(cert, ssl_private_key);
+}
+
+std::unique_ptr<FakeClientCertIdentity> FakeClientCertIdentity::Copy() {
+  return base::MakeUnique<FakeClientCertIdentity>(certificate(), key_);
+}
+
+void FakeClientCertIdentity::AcquirePrivateKey(
+    const base::Callback<void(scoped_refptr<SSLPrivateKey>)>&
+        private_key_callback) {
+  private_key_callback.Run(key_);
+}
+
+#if defined(OS_MACOSX)
+SecIdentityRef FakeClientCertIdentity::sec_identity_ref() const {
+  // Any tests that depend on having a real SecIdentityRef should use a real
+  // ClientCertIdentityMac.
+  NOTREACHED();
+  return nullptr;
+}
+#endif
+
+ClientCertIdentityList FakeClientCertIdentityListFromCertificateList(
+    const CertificateList& certs) {
+  ClientCertIdentityList result;
+  for (const auto& cert : certs) {
+    result.push_back(base::MakeUnique<FakeClientCertIdentity>(cert, nullptr));
+  }
+  return result;
+}
+
+}  // namespace net