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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 agree 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 <stdio.h>
#include <functional>
#include <string>
#include <vector>
#include <android-base/file.h>
#include <gtest/gtest.h>
#include <openssl/sha.h>
#include <ziparchive/zip_writer.h>
#include "common/test_constants.h"
#include "package.h"
class PackageTest : public ::testing::Test {
protected:
void SetUp() override;
// A list of package classes for test, including MemoryPackage and FilePackage.
std::vector<std::unique_ptr<Package>> packages_;
TemporaryFile temp_file_; // test package file.
std::string file_content_; // actual bytes of the package file.
};
void PackageTest::SetUp() {
std::vector<std::string> entries = { "file1.txt", "file2.txt", "dir1/file3.txt" };
FILE* file_ptr = fdopen(temp_file_.release(), "wb");
ZipWriter writer(file_ptr);
for (const auto& entry : entries) {
ASSERT_EQ(0, writer.StartEntry(entry.c_str(), ZipWriter::kCompress));
ASSERT_EQ(0, writer.WriteBytes(entry.c_str(), entry.size()));
ASSERT_EQ(0, writer.FinishEntry());
}
writer.Finish();
ASSERT_EQ(0, fclose(file_ptr));
ASSERT_TRUE(android::base::ReadFileToString(temp_file_.path, &file_content_));
auto memory_package = Package::CreateMemoryPackage(temp_file_.path, nullptr);
ASSERT_TRUE(memory_package);
packages_.emplace_back(std::move(memory_package));
auto file_package = Package::CreateFilePackage(temp_file_.path, nullptr);
ASSERT_TRUE(file_package);
packages_.emplace_back(std::move(file_package));
}
TEST_F(PackageTest, ReadFullyAtOffset_success) {
for (const auto& package : packages_) {
std::vector<uint8_t> buffer(file_content_.size());
ASSERT_TRUE(package->ReadFullyAtOffset(buffer.data(), file_content_.size(), 0));
ASSERT_EQ(file_content_, std::string(buffer.begin(), buffer.end()));
ASSERT_TRUE(package->ReadFullyAtOffset(buffer.data(), file_content_.size() - 10, 10));
ASSERT_EQ(file_content_.substr(10), std::string(buffer.begin(), buffer.end() - 10));
}
}
TEST_F(PackageTest, ReadFullyAtOffset_failure) {
for (const auto& package : packages_) {
std::vector<uint8_t> buffer(file_content_.size());
// Out of bound read.
ASSERT_FALSE(package->ReadFullyAtOffset(buffer.data(), file_content_.size(), 10));
}
}
TEST_F(PackageTest, UpdateHashAtOffset_sha1_hash) {
// Check that the hash matches for first half of the file.
uint64_t hash_size = file_content_.size() / 2;
std::vector<uint8_t> expected_sha(SHA_DIGEST_LENGTH);
SHA1(reinterpret_cast<uint8_t*>(file_content_.data()), hash_size, expected_sha.data());
for (const auto& package : packages_) {
SHA_CTX ctx;
SHA1_Init(&ctx);
std::vector<HasherUpdateCallback> hashers{ std::bind(&SHA1_Update, &ctx, std::placeholders::_1,
std::placeholders::_2) };
package->UpdateHashAtOffset(hashers, 0, hash_size);
std::vector<uint8_t> calculated_sha(SHA_DIGEST_LENGTH);
SHA1_Final(calculated_sha.data(), &ctx);
ASSERT_EQ(expected_sha, calculated_sha);
}
}
TEST_F(PackageTest, GetZipArchiveHandle_extract_entry) {
for (const auto& package : packages_) {
ZipArchiveHandle zip = package->GetZipArchiveHandle();
ASSERT_TRUE(zip);
// Check that we can extract one zip entry.
std::string entry_name = "dir1/file3.txt";
ZipString path(entry_name.c_str());
ZipEntry entry;
ASSERT_EQ(0, FindEntry(zip, path, &entry));
std::vector<uint8_t> extracted(entry_name.size());
ASSERT_EQ(0, ExtractToMemory(zip, &entry, extracted.data(), extracted.size()));
ASSERT_EQ(entry_name, std::string(extracted.begin(), extracted.end()));
}
}
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