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      1 /*
      2  * Copyright (C) 2015 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 "format/binary/TableFlattener.h"
     18 
     19 #include "android-base/stringprintf.h"
     20 
     21 #include "ResourceUtils.h"
     22 #include "SdkConstants.h"
     23 #include "format/binary/BinaryResourceParser.h"
     24 #include "test/Test.h"
     25 #include "util/Util.h"
     26 
     27 using namespace android;
     28 
     29 using ::testing::Gt;
     30 using ::testing::IsNull;
     31 using ::testing::NotNull;
     32 
     33 namespace aapt {
     34 
     35 class TableFlattenerTest : public ::testing::Test {
     36  public:
     37   void SetUp() override {
     38     context_ =
     39         test::ContextBuilder().SetCompilationPackage("com.app.test").SetPackageId(0x7f).Build();
     40   }
     41 
     42   ::testing::AssertionResult Flatten(IAaptContext* context, const TableFlattenerOptions& options,
     43                                      ResourceTable* table, std::string* out_content) {
     44     BigBuffer buffer(1024);
     45     TableFlattener flattener(options, &buffer);
     46     if (!flattener.Consume(context, table)) {
     47       return ::testing::AssertionFailure() << "failed to flatten ResourceTable";
     48     }
     49     *out_content = buffer.to_string();
     50     return ::testing::AssertionSuccess();
     51   }
     52 
     53   ::testing::AssertionResult Flatten(IAaptContext* context, const TableFlattenerOptions& options,
     54                                      ResourceTable* table, ResTable* out_table) {
     55     std::string content;
     56     auto result = Flatten(context, options, table, &content);
     57     if (!result) {
     58       return result;
     59     }
     60 
     61     if (out_table->add(content.data(), content.size(), 1, true) != NO_ERROR) {
     62       return ::testing::AssertionFailure() << "flattened ResTable is corrupt";
     63     }
     64     return ::testing::AssertionSuccess();
     65   }
     66 
     67   ::testing::AssertionResult Flatten(IAaptContext* context, const TableFlattenerOptions& options,
     68                                      ResourceTable* table, ResourceTable* out_table) {
     69     std::string content;
     70     auto result = Flatten(context, options, table, &content);
     71     if (!result) {
     72       return result;
     73     }
     74 
     75     BinaryResourceParser parser(context->GetDiagnostics(), out_table, {}, content.data(),
     76                                 content.size());
     77     if (!parser.Parse()) {
     78       return ::testing::AssertionFailure() << "flattened ResTable is corrupt";
     79     }
     80     return ::testing::AssertionSuccess();
     81   }
     82 
     83   ::testing::AssertionResult Exists(ResTable* table, const StringPiece& expected_name,
     84                                     const ResourceId& expected_id,
     85                                     const ConfigDescription& expected_config,
     86                                     const uint8_t expected_data_type, const uint32_t expected_data,
     87                                     const uint32_t expected_spec_flags) {
     88     const ResourceName expected_res_name = test::ParseNameOrDie(expected_name);
     89 
     90     table->setParameters(&expected_config);
     91 
     92     ResTable_config config;
     93     Res_value val;
     94     uint32_t spec_flags;
     95     if (table->getResource(expected_id.id, &val, false, 0, &spec_flags, &config) < 0) {
     96       return ::testing::AssertionFailure() << "could not find resource with";
     97     }
     98 
     99     if (expected_data_type != val.dataType) {
    100       return ::testing::AssertionFailure()
    101              << "expected data type " << std::hex << (int)expected_data_type
    102              << " but got data type " << (int)val.dataType << std::dec << " instead";
    103     }
    104 
    105     if (expected_data != val.data) {
    106       return ::testing::AssertionFailure()
    107              << "expected data " << std::hex << expected_data << " but got data " << val.data
    108              << std::dec << " instead";
    109     }
    110 
    111     if (expected_spec_flags != spec_flags) {
    112       return ::testing::AssertionFailure()
    113              << "expected specFlags " << std::hex << expected_spec_flags << " but got specFlags "
    114              << spec_flags << std::dec << " instead";
    115     }
    116 
    117     ResTable::resource_name actual_name;
    118     if (!table->getResourceName(expected_id.id, false, &actual_name)) {
    119       return ::testing::AssertionFailure() << "failed to find resource name";
    120     }
    121 
    122     Maybe<ResourceName> resName = ResourceUtils::ToResourceName(actual_name);
    123     if (!resName) {
    124       return ::testing::AssertionFailure()
    125              << "expected name '" << expected_res_name << "' but got '"
    126              << StringPiece16(actual_name.package, actual_name.packageLen) << ":"
    127              << StringPiece16(actual_name.type, actual_name.typeLen) << "/"
    128              << StringPiece16(actual_name.name, actual_name.nameLen) << "'";
    129     }
    130 
    131     ResourceName actual_res_name(resName.value());
    132 
    133     if (expected_res_name.entry != actual_res_name.entry ||
    134         expected_res_name.package != actual_res_name.package ||
    135         expected_res_name.type != actual_res_name.type) {
    136       return ::testing::AssertionFailure() << "expected resource '" << expected_res_name.to_string()
    137                                            << "' but got '" << actual_res_name.to_string() << "'";
    138     }
    139 
    140     if (expected_config != config) {
    141       return ::testing::AssertionFailure() << "expected config '" << expected_config
    142                                            << "' but got '" << ConfigDescription(config) << "'";
    143     }
    144     return ::testing::AssertionSuccess();
    145   }
    146 
    147  protected:
    148   std::unique_ptr<IAaptContext> context_;
    149 };
    150 
    151 TEST_F(TableFlattenerTest, FlattenFullyLinkedTable) {
    152   std::unique_ptr<ResourceTable> table =
    153       test::ResourceTableBuilder()
    154           .SetPackageId("com.app.test", 0x7f)
    155           .AddSimple("com.app.test:id/one", ResourceId(0x7f020000))
    156           .AddSimple("com.app.test:id/two", ResourceId(0x7f020001))
    157           .AddValue("com.app.test:id/three", ResourceId(0x7f020002),
    158                     test::BuildReference("com.app.test:id/one", ResourceId(0x7f020000)))
    159           .AddValue("com.app.test:integer/one", ResourceId(0x7f030000),
    160                     util::make_unique<BinaryPrimitive>(uint8_t(Res_value::TYPE_INT_DEC), 1u))
    161           .AddValue("com.app.test:integer/one", test::ParseConfigOrDie("v1"),
    162                     ResourceId(0x7f030000),
    163                     util::make_unique<BinaryPrimitive>(uint8_t(Res_value::TYPE_INT_DEC), 2u))
    164           .AddString("com.app.test:string/test", ResourceId(0x7f040000), "foo")
    165           .AddString("com.app.test:layout/bar", ResourceId(0x7f050000), "res/layout/bar.xml")
    166           .Build();
    167 
    168   ResTable res_table;
    169   ASSERT_TRUE(Flatten(context_.get(), {}, table.get(), &res_table));
    170 
    171   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/one", ResourceId(0x7f020000), {},
    172                      Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    173 
    174   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/two", ResourceId(0x7f020001), {},
    175                      Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    176 
    177   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/three", ResourceId(0x7f020002), {},
    178                      Res_value::TYPE_REFERENCE, 0x7f020000u, 0u));
    179 
    180   EXPECT_TRUE(Exists(&res_table, "com.app.test:integer/one", ResourceId(0x7f030000), {},
    181                      Res_value::TYPE_INT_DEC, 1u, ResTable_config::CONFIG_VERSION));
    182 
    183   EXPECT_TRUE(Exists(&res_table, "com.app.test:integer/one", ResourceId(0x7f030000),
    184                      test::ParseConfigOrDie("v1"), Res_value::TYPE_INT_DEC, 2u,
    185                      ResTable_config::CONFIG_VERSION));
    186 
    187   std::u16string foo_str = u"foo";
    188   ssize_t idx = res_table.getTableStringBlock(0)->indexOfString(foo_str.data(), foo_str.size());
    189   ASSERT_GE(idx, 0);
    190   EXPECT_TRUE(Exists(&res_table, "com.app.test:string/test", ResourceId(0x7f040000), {},
    191                      Res_value::TYPE_STRING, (uint32_t)idx, 0u));
    192 
    193   std::u16string bar_path = u"res/layout/bar.xml";
    194   idx = res_table.getTableStringBlock(0)->indexOfString(bar_path.data(), bar_path.size());
    195   ASSERT_GE(idx, 0);
    196   EXPECT_TRUE(Exists(&res_table, "com.app.test:layout/bar", ResourceId(0x7f050000), {},
    197                      Res_value::TYPE_STRING, (uint32_t)idx, 0u));
    198 }
    199 
    200 TEST_F(TableFlattenerTest, FlattenEntriesWithGapsInIds) {
    201   std::unique_ptr<ResourceTable> table =
    202       test::ResourceTableBuilder()
    203           .SetPackageId("com.app.test", 0x7f)
    204           .AddSimple("com.app.test:id/one", ResourceId(0x7f020001))
    205           .AddSimple("com.app.test:id/three", ResourceId(0x7f020003))
    206           .Build();
    207 
    208   ResTable res_table;
    209   ASSERT_TRUE(Flatten(context_.get(), {}, table.get(), &res_table));
    210 
    211   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/one", ResourceId(0x7f020001), {},
    212                      Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    213   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/three", ResourceId(0x7f020003), {},
    214                      Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    215 }
    216 
    217 TEST_F(TableFlattenerTest, FlattenMinMaxAttributes) {
    218   Attribute attr;
    219   attr.type_mask = android::ResTable_map::TYPE_INTEGER;
    220   attr.min_int = 10;
    221   attr.max_int = 23;
    222   std::unique_ptr<ResourceTable> table =
    223       test::ResourceTableBuilder()
    224           .SetPackageId("android", 0x01)
    225           .AddValue("android:attr/foo", ResourceId(0x01010000), util::make_unique<Attribute>(attr))
    226           .Build();
    227 
    228   ResourceTable result;
    229   ASSERT_TRUE(Flatten(context_.get(), {}, table.get(), &result));
    230 
    231   Attribute* actual_attr = test::GetValue<Attribute>(&result, "android:attr/foo");
    232   ASSERT_THAT(actual_attr, NotNull());
    233   EXPECT_EQ(attr.IsWeak(), actual_attr->IsWeak());
    234   EXPECT_EQ(attr.type_mask, actual_attr->type_mask);
    235   EXPECT_EQ(attr.min_int, actual_attr->min_int);
    236   EXPECT_EQ(attr.max_int, actual_attr->max_int);
    237 }
    238 
    239 static std::unique_ptr<ResourceTable> BuildTableWithSparseEntries(
    240     IAaptContext* context, const ConfigDescription& sparse_config, float load) {
    241   std::unique_ptr<ResourceTable> table =
    242       test::ResourceTableBuilder()
    243           .SetPackageId(context->GetCompilationPackage(), context->GetPackageId())
    244           .Build();
    245 
    246   // Add regular entries.
    247   int stride = static_cast<int>(1.0f / load);
    248   for (int i = 0; i < 100; i++) {
    249     const ResourceName name = test::ParseNameOrDie(
    250         base::StringPrintf("%s:string/foo_%d", context->GetCompilationPackage().data(), i));
    251     const ResourceId resid(context->GetPackageId(), 0x02, static_cast<uint16_t>(i));
    252     const auto value =
    253         util::make_unique<BinaryPrimitive>(Res_value::TYPE_INT_DEC, static_cast<uint32_t>(i));
    254     CHECK(table->AddResourceWithId(name, resid, ConfigDescription::DefaultConfig(), "",
    255                                    std::unique_ptr<Value>(value->Clone(nullptr)),
    256                                    context->GetDiagnostics()));
    257 
    258     // Every few entries, write out a sparse_config value. This will give us the desired load.
    259     if (i % stride == 0) {
    260       CHECK(table->AddResourceWithId(name, resid, sparse_config, "",
    261                                      std::unique_ptr<Value>(value->Clone(nullptr)),
    262                                      context->GetDiagnostics()));
    263     }
    264   }
    265   return table;
    266 }
    267 
    268 TEST_F(TableFlattenerTest, FlattenSparseEntryWithMinSdkO) {
    269   std::unique_ptr<IAaptContext> context = test::ContextBuilder()
    270                                               .SetCompilationPackage("android")
    271                                               .SetPackageId(0x01)
    272                                               .SetMinSdkVersion(SDK_O)
    273                                               .Build();
    274 
    275   const ConfigDescription sparse_config = test::ParseConfigOrDie("en-rGB");
    276   auto table_in = BuildTableWithSparseEntries(context.get(), sparse_config, 0.25f);
    277 
    278   TableFlattenerOptions options;
    279   options.use_sparse_entries = true;
    280 
    281   std::string no_sparse_contents;
    282   ASSERT_TRUE(Flatten(context.get(), {}, table_in.get(), &no_sparse_contents));
    283 
    284   std::string sparse_contents;
    285   ASSERT_TRUE(Flatten(context.get(), options, table_in.get(), &sparse_contents));
    286 
    287   EXPECT_GT(no_sparse_contents.size(), sparse_contents.size());
    288 
    289   // Attempt to parse the sparse contents.
    290 
    291   ResourceTable sparse_table;
    292   BinaryResourceParser parser(context->GetDiagnostics(), &sparse_table, Source("test.arsc"),
    293                               sparse_contents.data(), sparse_contents.size());
    294   ASSERT_TRUE(parser.Parse());
    295 
    296   auto value = test::GetValueForConfig<BinaryPrimitive>(&sparse_table, "android:string/foo_0",
    297                                                         sparse_config);
    298   ASSERT_THAT(value, NotNull());
    299   EXPECT_EQ(0u, value->value.data);
    300 
    301   ASSERT_THAT(test::GetValueForConfig<BinaryPrimitive>(&sparse_table, "android:string/foo_1",
    302                                                        sparse_config),
    303               IsNull());
    304 
    305   value = test::GetValueForConfig<BinaryPrimitive>(&sparse_table, "android:string/foo_4",
    306                                                    sparse_config);
    307   ASSERT_THAT(value, NotNull());
    308   EXPECT_EQ(4u, value->value.data);
    309 }
    310 
    311 TEST_F(TableFlattenerTest, FlattenSparseEntryWithConfigSdkVersionO) {
    312   std::unique_ptr<IAaptContext> context = test::ContextBuilder()
    313                                               .SetCompilationPackage("android")
    314                                               .SetPackageId(0x01)
    315                                               .SetMinSdkVersion(SDK_LOLLIPOP)
    316                                               .Build();
    317 
    318   const ConfigDescription sparse_config = test::ParseConfigOrDie("en-rGB-v26");
    319   auto table_in = BuildTableWithSparseEntries(context.get(), sparse_config, 0.25f);
    320 
    321   TableFlattenerOptions options;
    322   options.use_sparse_entries = true;
    323 
    324   std::string no_sparse_contents;
    325   ASSERT_TRUE(Flatten(context.get(), {}, table_in.get(), &no_sparse_contents));
    326 
    327   std::string sparse_contents;
    328   ASSERT_TRUE(Flatten(context.get(), options, table_in.get(), &sparse_contents));
    329 
    330   EXPECT_GT(no_sparse_contents.size(), sparse_contents.size());
    331 }
    332 
    333 TEST_F(TableFlattenerTest, DoNotUseSparseEntryForDenseConfig) {
    334   std::unique_ptr<IAaptContext> context = test::ContextBuilder()
    335                                               .SetCompilationPackage("android")
    336                                               .SetPackageId(0x01)
    337                                               .SetMinSdkVersion(SDK_O)
    338                                               .Build();
    339 
    340   const ConfigDescription sparse_config = test::ParseConfigOrDie("en-rGB");
    341   auto table_in = BuildTableWithSparseEntries(context.get(), sparse_config, 0.80f);
    342 
    343   TableFlattenerOptions options;
    344   options.use_sparse_entries = true;
    345 
    346   std::string no_sparse_contents;
    347   ASSERT_TRUE(Flatten(context.get(), {}, table_in.get(), &no_sparse_contents));
    348 
    349   std::string sparse_contents;
    350   ASSERT_TRUE(Flatten(context.get(), options, table_in.get(), &sparse_contents));
    351 
    352   EXPECT_EQ(no_sparse_contents.size(), sparse_contents.size());
    353 }
    354 
    355 TEST_F(TableFlattenerTest, FlattenSharedLibrary) {
    356   std::unique_ptr<IAaptContext> context =
    357       test::ContextBuilder().SetCompilationPackage("lib").SetPackageId(0x00).Build();
    358   std::unique_ptr<ResourceTable> table =
    359       test::ResourceTableBuilder()
    360           .SetPackageId("lib", 0x00)
    361           .AddValue("lib:id/foo", ResourceId(0x00010000), util::make_unique<Id>())
    362           .Build();
    363   ResourceTable result;
    364   ASSERT_TRUE(Flatten(context.get(), {}, table.get(), &result));
    365 
    366   Maybe<ResourceTable::SearchResult> search_result =
    367       result.FindResource(test::ParseNameOrDie("lib:id/foo"));
    368   ASSERT_TRUE(search_result);
    369   EXPECT_EQ(0x00u, search_result.value().package->id.value());
    370 
    371   auto iter = result.included_packages_.find(0x00);
    372   ASSERT_NE(result.included_packages_.end(), iter);
    373   EXPECT_EQ("lib", iter->second);
    374 }
    375 
    376 TEST_F(TableFlattenerTest, FlattenTableReferencingSharedLibraries) {
    377   std::unique_ptr<IAaptContext> context =
    378       test::ContextBuilder().SetCompilationPackage("app").SetPackageId(0x7f).Build();
    379   std::unique_ptr<ResourceTable> table =
    380       test::ResourceTableBuilder()
    381           .SetPackageId("app", 0x7f)
    382           .AddValue("app:id/foo", ResourceId(0x7f010000),
    383                     test::BuildReference("lib_one:id/foo", ResourceId(0x02010000)))
    384           .AddValue("app:id/bar", ResourceId(0x7f010001),
    385                     test::BuildReference("lib_two:id/bar", ResourceId(0x03010000)))
    386           .Build();
    387   table->included_packages_[0x02] = "lib_one";
    388   table->included_packages_[0x03] = "lib_two";
    389 
    390   ResTable result;
    391   ASSERT_TRUE(Flatten(context.get(), {}, table.get(), &result));
    392 
    393   const DynamicRefTable* dynamic_ref_table = result.getDynamicRefTableForCookie(1);
    394   ASSERT_THAT(dynamic_ref_table, NotNull());
    395 
    396   const KeyedVector<String16, uint8_t>& entries = dynamic_ref_table->entries();
    397 
    398   ssize_t idx = entries.indexOfKey(android::String16("lib_one"));
    399   ASSERT_GE(idx, 0);
    400   EXPECT_EQ(0x02u, entries.valueAt(idx));
    401 
    402   idx = entries.indexOfKey(android::String16("lib_two"));
    403   ASSERT_GE(idx, 0);
    404   EXPECT_EQ(0x03u, entries.valueAt(idx));
    405 }
    406 
    407 TEST_F(TableFlattenerTest, PackageWithNonStandardIdHasDynamicRefTable) {
    408   std::unique_ptr<IAaptContext> context =
    409       test::ContextBuilder().SetCompilationPackage("app").SetPackageId(0x80).Build();
    410   std::unique_ptr<ResourceTable> table = test::ResourceTableBuilder()
    411                                              .SetPackageId("app", 0x80)
    412                                              .AddSimple("app:id/foo", ResourceId(0x80010000))
    413                                              .Build();
    414 
    415   ResTable result;
    416   ASSERT_TRUE(Flatten(context.get(), {}, table.get(), &result));
    417 
    418   const DynamicRefTable* dynamic_ref_table = result.getDynamicRefTableForCookie(1);
    419   ASSERT_THAT(dynamic_ref_table, NotNull());
    420 
    421   const KeyedVector<String16, uint8_t>& entries = dynamic_ref_table->entries();
    422   ssize_t idx = entries.indexOfKey(android::String16("app"));
    423   ASSERT_GE(idx, 0);
    424   EXPECT_EQ(0x80u, entries.valueAt(idx));
    425 }
    426 
    427 TEST_F(TableFlattenerTest, LongPackageNameIsTruncated) {
    428   std::string kPackageName(256, 'F');
    429 
    430   std::unique_ptr<IAaptContext> context =
    431       test::ContextBuilder().SetCompilationPackage(kPackageName).SetPackageId(0x7f).Build();
    432   std::unique_ptr<ResourceTable> table =
    433       test::ResourceTableBuilder()
    434           .SetPackageId(kPackageName, 0x7f)
    435           .AddSimple(kPackageName + ":id/foo", ResourceId(0x7f010000))
    436           .Build();
    437 
    438   ResTable result;
    439   ASSERT_TRUE(Flatten(context.get(), {}, table.get(), &result));
    440 
    441   ASSERT_EQ(1u, result.getBasePackageCount());
    442   EXPECT_EQ(127u, result.getBasePackageName(0).size());
    443 }
    444 
    445 TEST_F(TableFlattenerTest, LongSharedLibraryPackageNameIsIllegal) {
    446   std::string kPackageName(256, 'F');
    447 
    448   std::unique_ptr<IAaptContext> context = test::ContextBuilder()
    449                                               .SetCompilationPackage(kPackageName)
    450                                               .SetPackageId(0x7f)
    451                                               .SetPackageType(PackageType::kSharedLib)
    452                                               .Build();
    453   std::unique_ptr<ResourceTable> table =
    454       test::ResourceTableBuilder()
    455           .SetPackageId(kPackageName, 0x7f)
    456           .AddSimple(kPackageName + ":id/foo", ResourceId(0x7f010000))
    457           .Build();
    458 
    459   ResTable result;
    460   ASSERT_FALSE(Flatten(context.get(), {}, table.get(), &result));
    461 }
    462 
    463 TEST_F(TableFlattenerTest, ObfuscatingResourceNamesNoWhitelistSucceeds) {
    464   std::unique_ptr<ResourceTable> table =
    465       test::ResourceTableBuilder()
    466           .SetPackageId("com.app.test", 0x7f)
    467           .AddSimple("com.app.test:id/one", ResourceId(0x7f020000))
    468           .AddSimple("com.app.test:id/two", ResourceId(0x7f020001))
    469           .AddValue("com.app.test:id/three", ResourceId(0x7f020002),
    470                     test::BuildReference("com.app.test:id/one", ResourceId(0x7f020000)))
    471           .AddValue("com.app.test:integer/one", ResourceId(0x7f030000),
    472                     util::make_unique<BinaryPrimitive>(uint8_t(Res_value::TYPE_INT_DEC), 1u))
    473           .AddValue("com.app.test:integer/one", test::ParseConfigOrDie("v1"),
    474                     ResourceId(0x7f030000),
    475                     util::make_unique<BinaryPrimitive>(uint8_t(Res_value::TYPE_INT_DEC), 2u))
    476           .AddString("com.app.test:string/test", ResourceId(0x7f040000), "foo")
    477           .AddString("com.app.test:layout/bar", ResourceId(0x7f050000), "res/layout/bar.xml")
    478           .Build();
    479 
    480   TableFlattenerOptions options;
    481   options.collapse_key_stringpool = true;
    482 
    483   ResTable res_table;
    484 
    485   ASSERT_TRUE(Flatten(context_.get(), options, table.get(), &res_table));
    486 
    487   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
    488                      ResourceId(0x7f020000), {}, Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    489 
    490   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
    491                      ResourceId(0x7f020001), {}, Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    492 
    493   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
    494                      ResourceId(0x7f020002), {}, Res_value::TYPE_REFERENCE, 0x7f020000u, 0u));
    495 
    496   EXPECT_TRUE(Exists(&res_table, "com.app.test:integer/0_resource_name_obfuscated",
    497                      ResourceId(0x7f030000), {}, Res_value::TYPE_INT_DEC, 1u,
    498                      ResTable_config::CONFIG_VERSION));
    499 
    500   EXPECT_TRUE(Exists(&res_table, "com.app.test:integer/0_resource_name_obfuscated",
    501                      ResourceId(0x7f030000), test::ParseConfigOrDie("v1"), Res_value::TYPE_INT_DEC,
    502                      2u, ResTable_config::CONFIG_VERSION));
    503 
    504   std::u16string foo_str = u"foo";
    505   ssize_t idx = res_table.getTableStringBlock(0)->indexOfString(foo_str.data(), foo_str.size());
    506   ASSERT_GE(idx, 0);
    507   EXPECT_TRUE(Exists(&res_table, "com.app.test:string/0_resource_name_obfuscated",
    508                      ResourceId(0x7f040000), {}, Res_value::TYPE_STRING, (uint32_t)idx, 0u));
    509 
    510   std::u16string bar_path = u"res/layout/bar.xml";
    511   idx = res_table.getTableStringBlock(0)->indexOfString(bar_path.data(), bar_path.size());
    512   ASSERT_GE(idx, 0);
    513   EXPECT_TRUE(Exists(&res_table, "com.app.test:layout/0_resource_name_obfuscated",
    514                      ResourceId(0x7f050000), {}, Res_value::TYPE_STRING, (uint32_t)idx, 0u));
    515 }
    516 
    517 TEST_F(TableFlattenerTest, ObfuscatingResourceNamesWithWhitelistSucceeds) {
    518   std::unique_ptr<ResourceTable> table =
    519       test::ResourceTableBuilder()
    520           .SetPackageId("com.app.test", 0x7f)
    521           .AddSimple("com.app.test:id/one", ResourceId(0x7f020000))
    522           .AddSimple("com.app.test:id/two", ResourceId(0x7f020001))
    523           .AddValue("com.app.test:id/three", ResourceId(0x7f020002),
    524                     test::BuildReference("com.app.test:id/one", ResourceId(0x7f020000)))
    525           .AddValue("com.app.test:integer/one", ResourceId(0x7f030000),
    526                     util::make_unique<BinaryPrimitive>(uint8_t(Res_value::TYPE_INT_DEC), 1u))
    527           .AddValue("com.app.test:integer/one", test::ParseConfigOrDie("v1"),
    528                     ResourceId(0x7f030000),
    529                     util::make_unique<BinaryPrimitive>(uint8_t(Res_value::TYPE_INT_DEC), 2u))
    530           .AddString("com.app.test:string/test", ResourceId(0x7f040000), "foo")
    531           .AddString("com.app.test:layout/bar", ResourceId(0x7f050000), "res/layout/bar.xml")
    532           .Build();
    533 
    534   TableFlattenerOptions options;
    535   options.collapse_key_stringpool = true;
    536   options.whitelisted_resources.insert("test");
    537   options.whitelisted_resources.insert("three");
    538   ResTable res_table;
    539 
    540   ASSERT_TRUE(Flatten(context_.get(), options, table.get(), &res_table));
    541 
    542   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
    543                      ResourceId(0x7f020000), {}, Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    544 
    545   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/0_resource_name_obfuscated",
    546                      ResourceId(0x7f020001), {}, Res_value::TYPE_INT_BOOLEAN, 0u, 0u));
    547 
    548   EXPECT_TRUE(Exists(&res_table, "com.app.test:id/three", ResourceId(0x7f020002), {},
    549                      Res_value::TYPE_REFERENCE, 0x7f020000u, 0u));
    550 
    551   EXPECT_TRUE(Exists(&res_table, "com.app.test:integer/0_resource_name_obfuscated",
    552                      ResourceId(0x7f030000), {}, Res_value::TYPE_INT_DEC, 1u,
    553                      ResTable_config::CONFIG_VERSION));
    554 
    555   EXPECT_TRUE(Exists(&res_table, "com.app.test:integer/0_resource_name_obfuscated",
    556                      ResourceId(0x7f030000), test::ParseConfigOrDie("v1"), Res_value::TYPE_INT_DEC,
    557                      2u, ResTable_config::CONFIG_VERSION));
    558 
    559   std::u16string foo_str = u"foo";
    560   ssize_t idx = res_table.getTableStringBlock(0)->indexOfString(foo_str.data(), foo_str.size());
    561   ASSERT_GE(idx, 0);
    562   EXPECT_TRUE(Exists(&res_table, "com.app.test:string/test", ResourceId(0x7f040000), {},
    563                      Res_value::TYPE_STRING, (uint32_t)idx, 0u));
    564 
    565   std::u16string bar_path = u"res/layout/bar.xml";
    566   idx = res_table.getTableStringBlock(0)->indexOfString(bar_path.data(), bar_path.size());
    567   ASSERT_GE(idx, 0);
    568   EXPECT_TRUE(Exists(&res_table, "com.app.test:layout/0_resource_name_obfuscated",
    569                      ResourceId(0x7f050000), {}, Res_value::TYPE_STRING, (uint32_t)idx, 0u));
    570 }
    571 
    572 TEST_F(TableFlattenerTest, FlattenOverlayable) {
    573   std::unique_ptr<ResourceTable> table =
    574       test::ResourceTableBuilder()
    575           .SetPackageId("com.app.test", 0x7f)
    576           .AddSimple("com.app.test:integer/overlayable", ResourceId(0x7f020000))
    577           .Build();
    578 
    579   ASSERT_TRUE(table->SetOverlayable(test::ParseNameOrDie("com.app.test:integer/overlayable"),
    580                                     Overlayable{}, test::GetDiagnostics()));
    581 
    582   ResTable res_table;
    583   ASSERT_TRUE(Flatten(context_.get(), {}, table.get(), &res_table));
    584 
    585   const StringPiece16 overlayable_name(u"com.app.test:integer/overlayable");
    586   uint32_t spec_flags = 0u;
    587   ASSERT_THAT(res_table.identifierForName(overlayable_name.data(), overlayable_name.size(), nullptr,
    588                                           0u, nullptr, 0u, &spec_flags),
    589               Gt(0u));
    590   EXPECT_TRUE(spec_flags & android::ResTable_typeSpec::SPEC_OVERLAYABLE);
    591 }
    592 
    593 }  // namespace aapt
    594