1    :  // Copyright 2011 Google Inc.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  
  15    :  #include "syzygy/pe/metadata.h"
  16    :  #include "base/file_util.h"
  17    :  #include "base/json/json_reader.h"
  18    :  #include "syzygy/core/json_file_writer.h"
  19    :  #include "syzygy/core/serialization.h"
  20    :  #include "syzygy/core/unittest_util.h"
  21    :  #include "gtest/gtest.h"
  22    :  
  23    :  namespace pe {
  24    :  
  25    :  typedef PEFile::AbsoluteAddress AbsoluteAddress;
  26    :  
  27    :  namespace {
  28    :  
  29  E :  void InitMetadata(Metadata* metadata) {
  30  E :    std::string command_line = "foo.exe --bar --baz=blarg";
  31    :  
  32  E :    base::Time creation_time;
  33    :    EXPECT_TRUE(base::Time::FromString("Thu, 7 Jul 2011 13:45:00 GMT",
  34  E :                                       &creation_time));
  35    :  
  36  E :    SyzygyVersion toolchain_version(1, 2, 3, 4, "5");
  37    :  
  38  E :    PEFile::Signature module_signature;
  39  E :    module_signature.path = L"C:\\foo\\foo.dll";
  40  E :    module_signature.base_address = AbsoluteAddress(0x4001000);
  41  E :    module_signature.module_size = 2 * 1024 * 1024;
  42  E :    module_signature.module_time_date_stamp = 0xdeadbeefu;
  43  E :    module_signature.module_checksum = 0xbaadf00du;
  44    :  
  45  E :    metadata->set_command_line(command_line);
  46  E :    metadata->set_creation_time(creation_time);
  47  E :    metadata->set_toolchain_version(toolchain_version);
  48  E :    metadata->set_module_signature(module_signature);
  49  E :  }
  50    :  
  51  E :  bool TestJSONSerialization(bool pretty_print) {
  52  E :    FilePath temp_file_path;
  53  E :    FILE* temp_file = file_util::CreateAndOpenTemporaryFile(&temp_file_path);
  54  E :    if (temp_file == NULL)
  55  i :      return false;
  56    :  
  57  E :    bool success = true;
  58    :  
  59    :    // Output to file.
  60  E :    Metadata metadata1;
  61  E :    InitMetadata(&metadata1);
  62  E :    core::JSONFileWriter json_file(temp_file, pretty_print);
  63  E :    EXPECT_TRUE(success = metadata1.SaveToJSON(&json_file));
  64  E :    fclose(temp_file);
  65    :  
  66    :    // Read the file.
  67  E :    std::string file_string;
  68  E :    if (success)
  69    :      EXPECT_TRUE(success =
  70  E :          file_util::ReadFileToString(temp_file_path, &file_string));
  71    :  
  72    :    // Parse the JSON, extracting the root dictionary.
  73  E :    scoped_ptr<Value> value;
  74  E :    DictionaryValue* metadata_dict = NULL;
  75  E :    if (success) {
  76  E :      value.reset(base::JSONReader::Read(file_string, false));
  77    :      EXPECT_TRUE(success =
  78  E :          (value.get() != NULL && value->GetType() == Value::TYPE_DICTIONARY));
  79  E :      if (success)
  80  E :        metadata_dict = static_cast<DictionaryValue*>(value.get());
  81    :    }
  82    :  
  83    :    // Parse the metadata from the Value.
  84  E :    Metadata metadata2;
  85  E :    if (success) {
  86  E :      DCHECK(metadata_dict != NULL);
  87  E :      EXPECT_TRUE(success = metadata2.LoadFromJSON(*metadata_dict));
  88    :    }
  89    :  
  90    :    // Compare the two structures.
  91  E :    if (success)
  92  E :      EXPECT_TRUE(success = (metadata1 == metadata2));
  93    :  
  94    :    // Always delete the temporary file.
  95  E :    if (!file_util::Delete(temp_file_path, false))
  96  i :      success = false;
  97    :  
  98  E :    return success;
  99  E :  }
 100    :  
 101    :  }  // namespace
 102    :  
 103  E :  TEST(MetadataTest, Equality) {
 104  E :    Metadata metadata1;
 105  E :    Metadata metadata2;
 106  E :    InitMetadata(&metadata1);
 107  E :    InitMetadata(&metadata2);
 108  E :    EXPECT_EQ(metadata1, metadata2);
 109  E :  }
 110    :  
 111  E :  TEST(MetadataTest, Inequality) {
 112  E :    Metadata metadata1;
 113  E :    Metadata metadata2;
 114  E :    InitMetadata(&metadata1);
 115  E :    EXPECT_NE(metadata1, metadata2);
 116  E :  }
 117    :  
 118  E :  TEST(MetadataTest, SaveToBlock) {
 119  E :    Metadata metadata1;
 120  E :    InitMetadata(&metadata1);
 121    :  
 122  E :    BlockGraph::Block block(0, BlockGraph::DATA_BLOCK, 0, "Metadata");
 123  E :    EXPECT_TRUE(metadata1.SaveToBlock(&block));
 124    :  
 125  E :    Metadata metadata2;
 126  E :    EXPECT_TRUE(metadata2.LoadFromBlock(&block));
 127  E :    EXPECT_EQ(metadata1, metadata2);
 128  E :  }
 129    :  
 130  E :  TEST(MetadataTest, Serialization) {
 131  E :    Metadata metadata;
 132  E :    InitMetadata(&metadata);
 133  E :    EXPECT_TRUE(testing::TestSerialization(metadata));
 134  E :  }
 135    :  
 136  E :  TEST(MetadataTest, JSONSerializationNoPrettyPrint) {
 137  E :    EXPECT_TRUE(TestJSONSerialization(true));
 138  E :  }
 139    :  
 140  E :  TEST(MetadataTest, JSONSerializationPrettyPrint) {
 141  E :    EXPECT_TRUE(TestJSONSerialization(false));
 142  E :  }
 143    :  
 144    :  }  // namespace pe