File: pyParser.cpp

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/* Copyright 2017 R. Thomas
 * Copyright 2017 Quarkslab
 *
 * 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 <string>
#include <memory>

#include "LIEF/MachO/Parser.hpp"

#include "pyMachO.hpp"

namespace LIEF {
namespace MachO {

template<>
void create<Parser>(py::module& m) {

  // Parser (Parser)
  m.def("parse",
    static_cast<std::unique_ptr<FatBinary> (*) (const std::string&, const ParserConfig&)>(&LIEF::MachO::Parser::parse),
    "Parse the given binary and return a " RST_CLASS_REF(lief.MachO.FatBinary) " object\n\n"

    "One can configure the parsing with the ``config`` parameter. See " RST_CLASS_REF(lief.MachO.ParserConfig) "",
    "filename"_a,
    "config"_a = ParserConfig::deep(),
    py::return_value_policy::take_ownership);


  m.def("parse",
    static_cast<std::unique_ptr<FatBinary> (*) (const std::vector<uint8_t>&, const std::string&, const ParserConfig&)>(&LIEF::MachO::Parser::parse),
    "Parse the given binary (from raw) and return a " RST_CLASS_REF(lief.MachO.FatBinary) " objects\n\n"

    "One can configure the parsing with the ``config`` parameter. See " RST_CLASS_REF(lief.MachO.ParserConfig) "",
    "raw"_a,
    "name"_a = "",
    "config"_a = ParserConfig::quick(),
    py::return_value_policy::take_ownership);


    m.def("parse",
      [] (py::object byteio, std::string name, const ParserConfig& config) {
        auto&& io = py::module::import("io");
        auto&& RawIOBase = io.attr("RawIOBase");
        auto&& BufferedIOBase = io.attr("BufferedIOBase");
        auto&& TextIOBase = io.attr("TextIOBase");

        py::object rawio;


        if (py::isinstance(byteio, RawIOBase)) {
          rawio = byteio;
        }

        else if (py::isinstance(byteio, BufferedIOBase)) {
          rawio = byteio.attr("raw");
        }

        else if (py::isinstance(byteio, TextIOBase)) {
          rawio = byteio.attr("buffer").attr("raw");
        }

        else {
          throw py::type_error(py::repr(byteio).cast<std::string>().c_str());
        }

        std::string raw_str = static_cast<py::bytes>(rawio.attr("readall")());
        std::vector<uint8_t> raw = {
          std::make_move_iterator(std::begin(raw_str)),
          std::make_move_iterator(std::end(raw_str))};

        return LIEF::MachO::Parser::parse(std::move(raw), name, config);
      },
      "io"_a,
      "name"_a = "",
      "config"_a = ParserConfig::quick(),
      py::return_value_policy::take_ownership);
}

}
}