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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Log.h"
#include "cipher/ProtoEncryption.h"
#include <android-base/file.h>
#include <gtest/gtest.h>
#include "FdBuffer.h"
#include "android/util/ProtoFileReader.h"
using namespace android::os::incidentd;
using android::sp;
using std::string;
using ::testing::Test;
const std::string kTestPath = GetExecutableDirectory();
const std::string kTestDataPath = kTestPath + "/testdata/";
TEST(ProtoEncryptionTest, test_encrypt_decrypt) {
const std::string plaintextFile = kTestDataPath + "plaintext.txt";
const std::string encryptedFile = kTestDataPath + "encrypted.txt";
size_t msg1Size = 20 * 1024;
// Create a file with plain text.
{
unique_fd fd(
open(plaintextFile.c_str(), O_WRONLY | O_CREAT | O_CLOEXEC, S_IRUSR | S_IWUSR));
ASSERT_NE(fd.get(), -1);
string content;
content.resize(msg1Size, 'a');
WriteFully(fd, content.data(), msg1Size);
}
// Read the plain text and encrypted
{
unique_fd readFd(open(plaintextFile.c_str(), O_RDONLY | O_CLOEXEC));
unique_fd encryptedFd(
open(encryptedFile.c_str(), O_WRONLY | O_CREAT | O_CLOEXEC, S_IRUSR | S_IWUSR));
ASSERT_NE(readFd.get(), -1);
ASSERT_NE(encryptedFd.get(), -1);
sp<ProtoFileReader> reader = new ProtoFileReader(readFd.get());
ProtoEncryptor encryptor(reader);
EXPECT_TRUE(encryptor.encrypt() > msg1Size);
encryptor.flush(encryptedFd.get());
}
// Read the encrypted file, and decrypt
unique_fd encryptedFd(open(encryptedFile.c_str(), O_RDONLY | O_CLOEXEC));
ASSERT_NE(encryptedFd.get(), -1);
FdBuffer output;
sp<ProtoFileReader> reader2 = new ProtoFileReader(encryptedFd.get());
ProtoDecryptor decryptor(reader2, reader2->size());
decryptor.decryptAndFlush(&output);
auto decryptedReader = output.data()->read();
// Check the content.
int count = 0;
while (decryptedReader->hasNext()) {
if (decryptedReader->next() == 'a') {
count++;
}
}
EXPECT_EQ(msg1Size, count);
}
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