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// Copyright 2021 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "DolphinTool/VerifyCommand.h"
#include <OptionParser.h>
namespace DolphinTool
{
int VerifyCommand::Main(const std::vector<std::string>& args)
{
auto parser = std::make_unique<optparse::OptionParser>();
parser->usage("usage: verify [options]...");
parser->add_option("-i", "--input")
.type("string")
.action("store")
.help("Path to disc image FILE.")
.metavar("FILE");
parser->add_option("-a", "--algorithm")
.type("string")
.action("store")
.help("Optional. Compute and print the digest using the selected algorithm, then exit. "
"[%choices]")
.choices({"crc32", "md5", "sha1"});
const optparse::Values& options = parser->parse_args(args);
// Validate options
const std::string input_file_path = static_cast<const char*>(options.get("input"));
if (input_file_path.empty())
{
std::cerr << "Error: No input set" << std::endl;
return 1;
}
std::optional<std::string> algorithm;
if (options.is_set("algorithm"))
{
algorithm = static_cast<const char*>(options.get("algorithm"));
}
bool enable_crc32 = algorithm == std::nullopt || algorithm == "crc32";
bool enable_md5 = algorithm == std::nullopt || algorithm == "md5";
bool enable_sha1 = algorithm == std::nullopt || algorithm == "sha1";
if (!enable_crc32 && !enable_md5 && !enable_sha1)
{
// optparse should protect from this
std::cerr << "Error: No algorithms selected for the operation" << std::endl;
return 1;
}
// Open the volume
std::shared_ptr<DiscIO::VolumeDisc> volume = DiscIO::CreateDisc(input_file_path);
if (!volume)
{
std::cerr << "Error: Unable to open disc image" << std::endl;
return 1;
}
// Verify the volume
const std::optional<DiscIO::VolumeVerifier::Result> result =
VerifyVolume(volume, enable_crc32, enable_md5, enable_sha1);
if (!result)
{
std::cerr << "Error: Unable to verify volume" << std::endl;
return 1;
}
if (algorithm == std::nullopt)
{
PrintFullReport(result);
}
else
{
if (enable_crc32 && !result->hashes.crc32.empty())
std::cout << HashToHexString(result->hashes.crc32) << std::endl;
else if (enable_md5 && !result->hashes.md5.empty())
std::cout << HashToHexString(result->hashes.md5) << std::endl;
else if (enable_sha1 && !result->hashes.sha1.empty())
std::cout << HashToHexString(result->hashes.sha1) << std::endl;
else
{
std::cerr << "Error: No hash available" << std::endl;
return 1;
}
}
return 0;
}
void VerifyCommand::PrintFullReport(const std::optional<DiscIO::VolumeVerifier::Result> result)
{
if (!result->hashes.crc32.empty())
std::cout << "CRC32: " << HashToHexString(result->hashes.crc32) << std::endl;
else
std::cout << "CRC32 not available" << std::endl;
if (!result->hashes.md5.empty())
std::cout << "MD5: " << HashToHexString(result->hashes.md5) << std::endl;
else
std::cout << "MD5 not available" << std::endl;
if (!result->hashes.sha1.empty())
std::cout << "SHA1: " << HashToHexString(result->hashes.sha1) << std::endl;
else
std::cout << "SHA1 not available" << std::endl;
std::cout << "Problems Found: " << (result->problems.size() > 0 ? "Yes" : "No") << std::endl;
for (int i = 0; i < static_cast<int>(result->problems.size()); ++i)
{
const DiscIO::VolumeVerifier::Problem problem = result->problems[i];
std::cout << std::endl << "Severity: ";
switch (problem.severity)
{
case DiscIO::VolumeVerifier::Severity::Low:
std::cout << "Low";
break;
case DiscIO::VolumeVerifier::Severity::Medium:
std::cout << "Medium";
break;
case DiscIO::VolumeVerifier::Severity::High:
std::cout << "High";
break;
case DiscIO::VolumeVerifier::Severity::None:
std::cout << "None";
break;
default:
ASSERT(false);
break;
}
std::cout << std::endl;
std::cout << "Summary: " << problem.text << std::endl << std::endl;
}
}
std::optional<DiscIO::VolumeVerifier::Result>
VerifyCommand::VerifyVolume(std::shared_ptr<DiscIO::VolumeDisc> volume, bool enable_crc32,
bool enable_md5, bool enable_sha1)
{
if (!volume)
return std::nullopt;
DiscIO::VolumeVerifier verifier(*volume, false, {enable_crc32, enable_md5, enable_sha1});
verifier.Start();
while (verifier.GetBytesProcessed() != verifier.GetTotalBytes())
{
verifier.Process();
}
verifier.Finish();
const DiscIO::VolumeVerifier::Result result = verifier.GetResult();
return result;
}
std::string VerifyCommand::HashToHexString(const std::vector<u8>& hash)
{
std::stringstream ss;
ss << std::hex;
for (int i = 0; i < static_cast<int>(hash.size()); ++i)
{
ss << std::setw(2) << std::setfill('0') << static_cast<int>(hash[i]);
}
return ss.str();
}
} // namespace DolphinTool
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