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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/test/key_util.h"
#include <string>
#include <utility>
#include "base/files/file_util.h"
#include "base/logging.h"
#include "net/ssl/ssl_private_key.h"
#include "net/ssl/test_ssl_private_key.h"
#include "third_party/boringssl/src/include/openssl/bio.h"
#include "third_party/boringssl/src/include/openssl/evp.h"
#include "third_party/boringssl/src/include/openssl/pem.h"
namespace net::key_util {
bssl::UniquePtr<EVP_PKEY> LoadEVP_PKEYFromPEM(const base::FilePath& filepath) {
std::string data;
if (!base::ReadFileToString(filepath, &data)) {
LOG(ERROR) << "Could not read private key file: " << filepath.value();
return nullptr;
}
bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(const_cast<char*>(data.data()),
static_cast<int>(data.size())));
if (!bio) {
LOG(ERROR) << "Could not allocate BIO for buffer?";
return nullptr;
}
bssl::UniquePtr<EVP_PKEY> result(
PEM_read_bio_PrivateKey(bio.get(), nullptr, nullptr, nullptr));
if (!result) {
LOG(ERROR) << "Could not decode private key file: " << filepath.value();
return nullptr;
}
return result;
}
std::string PEMFromPrivateKey(EVP_PKEY* key) {
bssl::UniquePtr<BIO> temp_memory_bio(BIO_new(BIO_s_mem()));
if (!temp_memory_bio) {
LOG(ERROR) << "Failed to allocate temporary memory bio";
return std::string();
}
if (!PEM_write_bio_PrivateKey(temp_memory_bio.get(), key, nullptr, nullptr, 0,
nullptr, nullptr)) {
LOG(ERROR) << "Failed to write private key";
return std::string();
}
const uint8_t* buffer;
size_t len;
if (!BIO_mem_contents(temp_memory_bio.get(), &buffer, &len)) {
LOG(ERROR) << "BIO_mem_contents failed";
return std::string();
}
return std::string(reinterpret_cast<const char*>(buffer), len);
}
scoped_refptr<SSLPrivateKey> LoadPrivateKeyOpenSSL(
const base::FilePath& filepath) {
bssl::UniquePtr<EVP_PKEY> key = LoadEVP_PKEYFromPEM(filepath);
if (!key)
return nullptr;
return WrapOpenSSLPrivateKey(std::move(key));
}
} // namespace net::key_util
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