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/*
* (C) 2009 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#include <botan/botan.h>
#if defined(BOTAN_HAS_COMPRESSOR_BZIP2)
#include <botan/bzip2.h>
#endif
#if defined(BOTAN_HAS_COMPRESSOR_ZLIB)
#include <botan/zlib.h>
#endif
#include <iostream>
#include <fstream>
using namespace Botan;
#include "../../checks/getopt.h"
class Encoder_Decoder
{
public:
Encoder_Decoder(const std::string& command,
bool decode,
const std::vector<std::string>& args) :
type(command),
args(args),
decode(decode)
{ }
void run(std::istream& in, std::ostream& out)
{
Filter* filt = decode ? decoder(type) : encoder(type);
DataSource_Stream src(in);
Pipe pipe(filt, new DataSink_Stream(out));
pipe.process_msg(src);
}
Filter* encoder(const std::string& type) const
{
if(type == "hex") return new Hex_Encoder;
if(type == "base64") return new Base64_Encoder;
#if defined(BOTAN_HAS_COMPRESSOR_BZIP2)
if(type == "bzip2") return new Bzip_Compression;
#endif
#if defined(BOTAN_HAS_COMPRESSOR_ZLIB)
if(type == "zlib") return new Zlib_Compression;
#endif
return 0;
}
Filter* decoder(const std::string& type) const
{
if(type == "hex") return new Hex_Decoder;
if(type == "base64") return new Base64_Decoder;
#if defined(BOTAN_HAS_COMPRESSOR_BZIP2)
if(type == "bzip2") return new Bzip_Decompression;
#endif
#if defined(BOTAN_HAS_COMPRESSOR_ZLIB)
if(type == "zlib") return new Zlib_Decompression;
#endif
return 0;
}
private:
std::string type;
std::vector<std::string> args;
bool decode;
};
void run_command(const std::string& command,
const std::vector<std::string>& arguments,
const OptionParser& opts)
{
if(command == "hex" ||
command == "base64" ||
command == "bzip2" ||
command == "zlib")
{
bool decode = opts.is_set("decode");
std::string output = opts.value_or_else("output", "-");
std::string input = opts.value_or_else("input", "-");
Encoder_Decoder enc_dec(command, decode, arguments);
try
{
if(output == "-")
{
if(input == "-")
enc_dec.run(std::cin, std::cout);
else
{
std::ifstream in(input.c_str());
enc_dec.run(in, std::cout);
}
}
else // output != "-"
{
std::ofstream out(output.c_str());
if(input == "-")
enc_dec.run(std::cin, out);
else
{
std::ifstream in(input.c_str());
enc_dec.run(in, out);
}
}
}
catch(Botan::Stream_IO_Error& e)
{
std::cout << "I/O failure - " << e.what() << '\n';
}
}
else if(command == "hash" ||
command == "sha1" ||
command == "md5")
{
std::string hash;
if(command == "md5")
hash = "MD5";
if(command == "sha1")
hash = "SHA-160";
else
hash = opts.value_or_else("hash", "SHA-160"); // sha1 is default
Pipe pipe(new Hash_Filter(get_hash(hash)),
new Hex_Encoder(false, 0, Hex_Encoder::Lowercase));
for(size_t i = 0; i != arguments.size(); ++i)
{
std::string file_name = arguments[i];
u32bit previously = pipe.message_count();
if(file_name == "-")
{
pipe.start_msg();
std::cin >> pipe;
pipe.end_msg();
}
else
{
std::ifstream in(file_name.c_str());
if(in)
{
pipe.start_msg();
in >> pipe;
pipe.end_msg();
}
else
std::cerr << "Could not read " << file_name << '\n';
}
if(pipe.message_count() > previously)
std::cout << pipe.read_all_as_string(Pipe::LAST_MESSAGE) << " "
<< file_name << '\n';
}
}
else
{
std::cerr << "Command " << command << " not known\n";
}
}
int main(int argc, char* argv[])
{
LibraryInitializer init;
OptionParser opts("help|version|seconds=|"
"input=|output=|decode|"
"hash=|key=");
try
{
opts.parse(argv);
}
catch(std::runtime_error& e)
{
std::cout << "Command line problem: " << e.what() << '\n';
return 2;
}
if(opts.is_set("version") || argc <= 1)
{
std::cerr << "Botan Toolbox v" << version_string() << '\n';
std::cerr << "Commands: hash hex base64 ";
#if defined(BOTAN_HAS_COMPRESSOR_BZIP2)
std::cerr << "bzip2 ";
#endif
#if defined(BOTAN_HAS_COMPRESSOR_ZLIB)
std::cerr << "zlib ";
#endif
std::cerr << "\n";
return 0;
}
if(opts.is_set("help"))
{
std::vector<std::string> what = opts.leftovers();
for(size_t i = 0; i != what.size(); ++i)
std::cerr << what[i] << "? Never heard of it\n";
return 0;
}
std::vector<std::string> args = opts.leftovers();
if(args.size() == 0)
return 0;
std::string command = args[0];
args.erase(args.begin());
run_command(command, args, opts);
return 0;
}
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