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1 /*
2  * Copyright (C) 2016 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 agreed 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 "androidfw/ApkAssets.h"
18 
19 #include "android-base/file.h"
20 #include "android-base/test_utils.h"
21 #include "android-base/unique_fd.h"
22 #include "androidfw/Util.h"
23 
24 #include "TestHelpers.h"
25 #include "data/basic/R.h"
26 
27 using ::android::base::unique_fd;
28 using ::com::android::basic::R;
29 using ::testing::Eq;
30 using ::testing::Ge;
31 using ::testing::NotNull;
32 using ::testing::SizeIs;
33 using ::testing::StrEq;
34 
35 namespace android {
36 
TEST(ApkAssetsTest,LoadApk)37 TEST(ApkAssetsTest, LoadApk) {
38   std::unique_ptr<const ApkAssets> loaded_apk =
39       ApkAssets::Load(GetTestDataPath() + "/basic/basic.apk");
40   ASSERT_THAT(loaded_apk, NotNull());
41 
42   const LoadedArsc* loaded_arsc = loaded_apk->GetLoadedArsc();
43   ASSERT_THAT(loaded_arsc, NotNull());
44   ASSERT_THAT(loaded_arsc->GetPackageById(0x7fu), NotNull());
45   ASSERT_THAT(loaded_apk->Open("res/layout/main.xml"), NotNull());
46 }
47 
TEST(ApkAssetsTest,LoadApkFromFd)48 TEST(ApkAssetsTest, LoadApkFromFd) {
49   const std::string path = GetTestDataPath() + "/basic/basic.apk";
50   unique_fd fd(::open(path.c_str(), O_RDONLY | O_BINARY));
51   ASSERT_THAT(fd.get(), Ge(0));
52 
53   std::unique_ptr<const ApkAssets> loaded_apk =
54       ApkAssets::LoadFromFd(std::move(fd), path, false /*system*/, false /*force_shared_lib*/);
55   ASSERT_THAT(loaded_apk, NotNull());
56 
57   const LoadedArsc* loaded_arsc = loaded_apk->GetLoadedArsc();
58   ASSERT_THAT(loaded_arsc, NotNull());
59   ASSERT_THAT(loaded_arsc->GetPackageById(0x7fu), NotNull());
60   ASSERT_THAT(loaded_apk->Open("res/layout/main.xml"), NotNull());
61 }
62 
TEST(ApkAssetsTest,LoadApkAsSharedLibrary)63 TEST(ApkAssetsTest, LoadApkAsSharedLibrary) {
64   std::unique_ptr<const ApkAssets> loaded_apk =
65       ApkAssets::Load(GetTestDataPath() + "/appaslib/appaslib.apk");
66   ASSERT_THAT(loaded_apk, NotNull());
67 
68   const LoadedArsc* loaded_arsc = loaded_apk->GetLoadedArsc();
69   ASSERT_THAT(loaded_arsc, NotNull());
70   ASSERT_THAT(loaded_arsc->GetPackages(), SizeIs(1u));
71   EXPECT_FALSE(loaded_arsc->GetPackages()[0]->IsDynamic());
72 
73   loaded_apk = ApkAssets::LoadAsSharedLibrary(GetTestDataPath() + "/appaslib/appaslib.apk");
74   ASSERT_THAT(loaded_apk, NotNull());
75 
76   loaded_arsc = loaded_apk->GetLoadedArsc();
77   ASSERT_THAT(loaded_arsc, NotNull());
78   ASSERT_THAT(loaded_arsc->GetPackages(), SizeIs(1u));
79   EXPECT_TRUE(loaded_arsc->GetPackages()[0]->IsDynamic());
80 }
81 
TEST(ApkAssetsTest,LoadApkWithIdmap)82 TEST(ApkAssetsTest, LoadApkWithIdmap) {
83   std::string contents;
84   ResTable target_table;
85   const std::string target_path = GetTestDataPath() + "/basic/basic.apk";
86   ASSERT_TRUE(ReadFileFromZipToString(target_path, "resources.arsc", &contents));
87   ASSERT_THAT(target_table.add(contents.data(), contents.size(), 0, true /*copyData*/),
88               Eq(NO_ERROR));
89 
90   ResTable overlay_table;
91   const std::string overlay_path = GetTestDataPath() + "/overlay/overlay.apk";
92   ASSERT_TRUE(ReadFileFromZipToString(overlay_path, "resources.arsc", &contents));
93   ASSERT_THAT(overlay_table.add(contents.data(), contents.size(), 0, true /*copyData*/),
94               Eq(NO_ERROR));
95 
96   util::unique_cptr<void> idmap_data;
97   void* temp_data;
98   size_t idmap_len;
99 
100   ASSERT_THAT(target_table.createIdmap(overlay_table, 0u, 0u, target_path.c_str(),
101                                        overlay_path.c_str(), &temp_data, &idmap_len),
102               Eq(NO_ERROR));
103   idmap_data.reset(temp_data);
104 
105   TemporaryFile tf;
106   ASSERT_TRUE(base::WriteFully(tf.fd, idmap_data.get(), idmap_len));
107   close(tf.fd);
108 
109   // Open something so that the destructor of TemporaryFile closes a valid fd.
110   tf.fd = open("/dev/null", O_WRONLY);
111 
112   ASSERT_THAT(ApkAssets::LoadOverlay(tf.path), NotNull());
113 }
114 
TEST(ApkAssetsTest,CreateAndDestroyAssetKeepsApkAssetsOpen)115 TEST(ApkAssetsTest, CreateAndDestroyAssetKeepsApkAssetsOpen) {
116   std::unique_ptr<const ApkAssets> loaded_apk =
117       ApkAssets::Load(GetTestDataPath() + "/basic/basic.apk");
118   ASSERT_THAT(loaded_apk, NotNull());
119 
120   { ASSERT_THAT(loaded_apk->Open("res/layout/main.xml", Asset::ACCESS_BUFFER), NotNull()); }
121 
122   { ASSERT_THAT(loaded_apk->Open("res/layout/main.xml", Asset::ACCESS_BUFFER), NotNull()); }
123 }
124 
TEST(ApkAssetsTest,OpenUncompressedAssetFd)125 TEST(ApkAssetsTest, OpenUncompressedAssetFd) {
126   std::unique_ptr<const ApkAssets> loaded_apk =
127       ApkAssets::Load(GetTestDataPath() + "/basic/basic.apk");
128   ASSERT_THAT(loaded_apk, NotNull());
129 
130   auto asset = loaded_apk->Open("assets/uncompressed.txt", Asset::ACCESS_UNKNOWN);
131   ASSERT_THAT(asset, NotNull());
132 
133   off64_t start, length;
134   unique_fd fd(asset->openFileDescriptor(&start, &length));
135   ASSERT_THAT(fd.get(), Ge(0));
136 
137   lseek64(fd.get(), start, SEEK_SET);
138 
139   std::string buffer;
140   buffer.resize(length);
141   ASSERT_TRUE(base::ReadFully(fd.get(), &*buffer.begin(), length));
142 
143   EXPECT_THAT(buffer, StrEq("This should be uncompressed.\n\n"));
144 }
145 
146 }  // namespace android
147