1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agree to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdio.h>
18
19 #include <functional>
20 #include <string>
21 #include <vector>
22
23 #include <android-base/file.h>
24 #include <gtest/gtest.h>
25 #include <openssl/sha.h>
26 #include <ziparchive/zip_writer.h>
27
28 #include "common/test_constants.h"
29 #include "install/package.h"
30
31 class PackageTest : public ::testing::Test {
32 protected:
33 void SetUp() override;
34
35 // A list of package classes for test, including MemoryPackage and FilePackage.
36 std::vector<std::unique_ptr<Package>> packages_;
37
38 TemporaryFile temp_file_; // test package file.
39 std::string file_content_; // actual bytes of the package file.
40 };
41
SetUp()42 void PackageTest::SetUp() {
43 std::vector<std::string> entries = { "file1.txt", "file2.txt", "dir1/file3.txt" };
44 FILE* file_ptr = fdopen(temp_file_.release(), "wb");
45 ZipWriter writer(file_ptr);
46 for (const auto& entry : entries) {
47 ASSERT_EQ(0, writer.StartEntry(entry.c_str(), ZipWriter::kCompress));
48 ASSERT_EQ(0, writer.WriteBytes(entry.c_str(), entry.size()));
49 ASSERT_EQ(0, writer.FinishEntry());
50 }
51 writer.Finish();
52 ASSERT_EQ(0, fclose(file_ptr));
53
54 ASSERT_TRUE(android::base::ReadFileToString(temp_file_.path, &file_content_));
55 auto memory_package = Package::CreateMemoryPackage(temp_file_.path, nullptr);
56 ASSERT_TRUE(memory_package);
57 packages_.emplace_back(std::move(memory_package));
58
59 auto file_package = Package::CreateFilePackage(temp_file_.path, nullptr);
60 ASSERT_TRUE(file_package);
61 packages_.emplace_back(std::move(file_package));
62 }
63
TEST_F(PackageTest,ReadFullyAtOffset_success)64 TEST_F(PackageTest, ReadFullyAtOffset_success) {
65 for (const auto& package : packages_) {
66 std::vector<uint8_t> buffer(file_content_.size());
67 ASSERT_TRUE(package->ReadFullyAtOffset(buffer.data(), file_content_.size(), 0));
68 ASSERT_EQ(file_content_, std::string(buffer.begin(), buffer.end()));
69
70 ASSERT_TRUE(package->ReadFullyAtOffset(buffer.data(), file_content_.size() - 10, 10));
71 ASSERT_EQ(file_content_.substr(10), std::string(buffer.begin(), buffer.end() - 10));
72 }
73 }
74
TEST_F(PackageTest,ReadFullyAtOffset_failure)75 TEST_F(PackageTest, ReadFullyAtOffset_failure) {
76 for (const auto& package : packages_) {
77 std::vector<uint8_t> buffer(file_content_.size());
78 // Out of bound read.
79 ASSERT_FALSE(package->ReadFullyAtOffset(buffer.data(), file_content_.size(), 10));
80 }
81 }
82
TEST_F(PackageTest,UpdateHashAtOffset_sha1_hash)83 TEST_F(PackageTest, UpdateHashAtOffset_sha1_hash) {
84 // Check that the hash matches for first half of the file.
85 uint64_t hash_size = file_content_.size() / 2;
86 std::vector<uint8_t> expected_sha(SHA_DIGEST_LENGTH);
87 SHA1(reinterpret_cast<uint8_t*>(file_content_.data()), hash_size, expected_sha.data());
88
89 for (const auto& package : packages_) {
90 SHA_CTX ctx;
91 SHA1_Init(&ctx);
92 std::vector<HasherUpdateCallback> hashers{ std::bind(&SHA1_Update, &ctx, std::placeholders::_1,
93 std::placeholders::_2) };
94 package->UpdateHashAtOffset(hashers, 0, hash_size);
95
96 std::vector<uint8_t> calculated_sha(SHA_DIGEST_LENGTH);
97 SHA1_Final(calculated_sha.data(), &ctx);
98 ASSERT_EQ(expected_sha, calculated_sha);
99 }
100 }
101
TEST_F(PackageTest,GetZipArchiveHandle_extract_entry)102 TEST_F(PackageTest, GetZipArchiveHandle_extract_entry) {
103 for (const auto& package : packages_) {
104 ZipArchiveHandle zip = package->GetZipArchiveHandle();
105 ASSERT_TRUE(zip);
106
107 // Check that we can extract one zip entry.
108 std::string_view entry_name = "dir1/file3.txt";
109 ZipEntry entry;
110 ASSERT_EQ(0, FindEntry(zip, entry_name, &entry));
111
112 std::vector<uint8_t> extracted(entry_name.size());
113 ASSERT_EQ(0, ExtractToMemory(zip, &entry, extracted.data(), extracted.size()));
114 ASSERT_EQ(entry_name, std::string(extracted.begin(), extracted.end()));
115 }
116 }
117