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/*
* Copyright (C) 2014 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 "android-base/file.h"
#include "androidfw/ApkAssets.h"
#include "androidfw/AssetManager2.h"
#include "androidfw/ResourceTypes.h"
#include "utils/String16.h"
#include "utils/String8.h"
#include "TestHelpers.h"
#include "data/overlay/R.h"
#include "data/overlayable/R.h"
#include "data/system/R.h"
using ::testing::NotNull;
namespace overlay = com::android::overlay;
namespace overlayable = com::android::overlayable;
namespace android {
namespace {
class IdmapTest : public ::testing::Test {
protected:
void SetUp() override {
// Move to the test data directory so the idmap can locate the overlay APK.
original_path = base::GetExecutableDirectory();
chdir(GetTestDataPath().c_str());
system_assets_ = ApkAssets::Load("system/system.apk");
ASSERT_NE(nullptr, system_assets_);
overlay_assets_ = ApkAssets::LoadOverlay("overlay/overlay.idmap");
ASSERT_NE(nullptr, overlay_assets_);
overlayable_assets_ = ApkAssets::Load("overlayable/overlayable.apk");
ASSERT_NE(nullptr, overlayable_assets_);
}
void TearDown() override {
chdir(original_path.c_str());
}
protected:
std::string original_path;
std::unique_ptr<const ApkAssets> system_assets_;
std::unique_ptr<const ApkAssets> overlay_assets_;
std::unique_ptr<const ApkAssets> overlayable_assets_;
};
std::string GetStringFromApkAssets(const AssetManager2& asset_manager,
const AssetManager2::SelectedValue& value) {
auto assets = asset_manager.GetApkAssets();
const ResStringPool* string_pool = assets[value.cookie]->GetLoadedArsc()->GetStringPool();
return GetStringFromPool(string_pool, value.data);
}
}
TEST_F(IdmapTest, OverlayOverridesResourceValue) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::string::overlayable5);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value->cookie, 2U);
ASSERT_EQ(value->type, Res_value::TYPE_STRING);
ASSERT_EQ("Overlay One", GetStringFromApkAssets(asset_manager, *value));
}
TEST_F(IdmapTest, OverlayOverridesResourceValueUsingDifferentPackage) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::string::overlayable10);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value->cookie, 0U);
ASSERT_EQ(value->type, Res_value::TYPE_STRING);
ASSERT_EQ("yes", GetStringFromApkAssets(asset_manager, *value));
}
TEST_F(IdmapTest, OverlayOverridesResourceValueUsingInternalResource) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::string::overlayable8);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value->cookie, 2U);
ASSERT_EQ(value->type, Res_value::TYPE_REFERENCE);
ASSERT_EQ(value->data, (overlay::R::string::internal & 0x00ffffffU) | (0x02U << 24));
}
TEST_F(IdmapTest, OverlayOverridesResourceValueUsingInlineInteger) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::integer::config_integer);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value->cookie, 2U);
ASSERT_EQ(value->type, Res_value::TYPE_INT_DEC);
ASSERT_EQ(value->data, 42);
}
TEST_F(IdmapTest, OverlayOverridesResourceValueUsingInlineString) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::string::overlayable11);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value->cookie, 2U);
ASSERT_EQ(value->type, Res_value::TYPE_STRING);
ASSERT_EQ("Hardcoded string", GetStringFromApkAssets(asset_manager, *value));
}
TEST_F(IdmapTest, OverlayOverridesResourceValueUsingOverlayingResource) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::string::overlayable9);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value->cookie, 2U);
ASSERT_EQ(value->type, Res_value::TYPE_REFERENCE);
ASSERT_EQ(value->data, overlayable::R::string::overlayable7);
}
TEST_F(IdmapTest, OverlayOverridesXmlParser) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::layout::hello_view);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(value->cookie, 2U);
ASSERT_EQ(value->type, Res_value::TYPE_STRING);
ASSERT_EQ("res/layout/hello_view.xml", GetStringFromApkAssets(asset_manager, *value));
auto asset = asset_manager.OpenNonAsset("res/layout/hello_view.xml", value->cookie,
Asset::ACCESS_RANDOM);
auto dynamic_ref_table = asset_manager.GetDynamicRefTableForCookie(value->cookie);
auto xml_tree = util::make_unique<ResXMLTree>(std::move(dynamic_ref_table));
status_t err = xml_tree->setTo(asset->getBuffer(true), asset->getLength(), false);
ASSERT_EQ(err, NO_ERROR);
while (xml_tree->next() != ResXMLParser::START_TAG) { }
// The resource id of @id/hello_view should be rewritten to the resource id/hello_view within the
// target.
ASSERT_EQ(xml_tree->getAttributeNameResID(0), 0x010100d0 /* android:attr/id */);
ASSERT_EQ(xml_tree->getAttributeDataType(0), Res_value::TYPE_REFERENCE);
ASSERT_EQ(xml_tree->getAttributeData(0), overlayable::R::id::hello_view);
// The resource id of @android:string/yes should not be rewritten even though it overlays
// string/overlayable10 in the target.
ASSERT_EQ(xml_tree->getAttributeNameResID(1), 0x0101014f /* android:attr/text */);
ASSERT_EQ(xml_tree->getAttributeDataType(1), Res_value::TYPE_REFERENCE);
ASSERT_EQ(xml_tree->getAttributeData(1), 0x01040013 /* android:string/yes */);
// The resource id of the attribute within the overlay should be rewritten to the resource id of
// the attribute in the target.
ASSERT_EQ(xml_tree->getAttributeNameResID(2), overlayable::R::attr::max_lines);
ASSERT_EQ(xml_tree->getAttributeDataType(2), Res_value::TYPE_INT_DEC);
ASSERT_EQ(xml_tree->getAttributeData(2), 4);
}
TEST_F(IdmapTest, OverlaidResourceHasSameName) {
AssetManager2 asset_manager;
asset_manager.SetApkAssets({system_assets_.get(), overlayable_assets_.get(),
overlay_assets_.get()});
auto name = asset_manager.GetResourceName(overlayable::R::string::overlayable9);
ASSERT_TRUE(name.has_value());
ASSERT_EQ("com.android.overlayable", std::string(name->package));
ASSERT_EQ(std::u16string(u"string"), std::u16string(name->type16));
ASSERT_EQ("overlayable9", std::string(name->entry));
}
TEST_F(IdmapTest, OverlayLoaderInterop) {
auto asset = AssetsProvider::CreateAssetFromFile(GetTestDataPath() + "/loader/resources.arsc");
ASSERT_THAT(asset, NotNull());
auto loader_assets = ApkAssets::LoadTable(std::move(asset), EmptyAssetsProvider::Create(),
PROPERTY_LOADER);
AssetManager2 asset_manager;
asset_manager.SetApkAssets({overlayable_assets_.get(), loader_assets.get(),
overlay_assets_.get()});
auto value = asset_manager.GetResource(overlayable::R::string::overlayable11);
ASSERT_TRUE(value.has_value());
ASSERT_EQ(1U, value->cookie);
ASSERT_EQ(Res_value::TYPE_STRING, value->type);
ASSERT_EQ("loader", GetStringFromApkAssets(asset_manager, *value));
}
TEST_F(IdmapTest, OverlayAssetsIsUpToDate) {
std::string idmap_contents;
ASSERT_TRUE(base::ReadFileToString("overlay/overlay.idmap", &idmap_contents));
TemporaryFile temp_file;
ASSERT_TRUE(base::WriteStringToFile(idmap_contents, temp_file.path));
auto apk_assets = ApkAssets::LoadOverlay(temp_file.path);
ASSERT_NE(nullptr, apk_assets);
ASSERT_TRUE(apk_assets->IsUpToDate());
unlink(temp_file.path);
ASSERT_FALSE(apk_assets->IsUpToDate());
sleep(2);
base::WriteStringToFile("hello", temp_file.path);
sleep(2);
ASSERT_FALSE(apk_assets->IsUpToDate());
}
} // namespace