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422 lines
13 KiB
422 lines
13 KiB
// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the Andrey N. Sabelnikov nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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#ifndef _STRING_TOOLS_H_
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#define _STRING_TOOLS_H_
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// Previously pulled in by ASIO, further cleanup still required ...
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#ifdef _WIN32
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# include <winsock2.h>
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# include <windows.h>
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#endif
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#include <string.h>
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#include <locale>
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#include <cstdlib>
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#include <string>
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#include <type_traits>
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#include <boost/uuid/uuid.hpp>
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#include <boost/uuid/uuid_io.hpp>
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#include <boost/lexical_cast.hpp>
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#include <boost/algorithm/string/predicate.hpp>
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#include "hex.h"
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#include "memwipe.h"
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#include "span.h"
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#include "warnings.h"
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#ifndef OUT
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#define OUT
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#endif
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#ifdef WINDOWS_PLATFORM
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#pragma comment (lib, "Rpcrt4.lib")
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#endif
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namespace epee
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{
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namespace string_tools
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{
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//----------------------------------------------------------------------------
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inline std::string get_str_from_guid_a(const boost::uuids::uuid& rid)
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{
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return boost::lexical_cast<std::string>(rid);
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}
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//----------------------------------------------------------------------------
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inline bool get_guid_from_string(OUT boost::uuids::uuid& inetifer, const std::string& str_id)
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{
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std::string local_str_id = str_id;
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if(local_str_id.size() < 36)
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return false;
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if('{' == *local_str_id.begin())
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local_str_id.erase(0, 1);
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if('}' == *(--local_str_id.end()))
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local_str_id.erase(--local_str_id.end());
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try
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{
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inetifer = boost::lexical_cast<boost::uuids::uuid>(local_str_id);
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return true;
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}
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catch(...)
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{
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return false;
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}
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}
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//----------------------------------------------------------------------------
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inline std::string buff_to_hex_nodelimer(const std::string& src)
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{
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return to_hex::string(to_byte_span(to_span(src)));
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}
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//----------------------------------------------------------------------------
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template<class CharT>
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bool parse_hexstr_to_binbuff(const std::basic_string<CharT>& s, std::basic_string<CharT>& res, bool allow_partial_byte = false)
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{
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res.clear();
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if (!allow_partial_byte && (s.size() & 1))
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return false;
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try
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{
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long v = 0;
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for(size_t i = 0; i < (s.size() + 1) / 2; i++)
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{
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CharT byte_str[3];
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size_t copied = s.copy(byte_str, 2, 2 * i);
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byte_str[copied] = CharT(0);
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CharT* endptr;
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v = strtoul(byte_str, &endptr, 16);
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if (v < 0 || 0xFF < v || endptr != byte_str + copied)
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{
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return false;
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}
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res.push_back(static_cast<unsigned char>(v));
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}
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return true;
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}catch(...)
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{
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return false;
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}
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}
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//----------------------------------------------------------------------------
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template<class t_pod_type>
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bool parse_tpod_from_hex_string(const std::string& str_hash, t_pod_type& t_pod)
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{
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static_assert(std::is_pod<t_pod_type>::value, "expected pod type");
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std::string buf;
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bool res = epee::string_tools::parse_hexstr_to_binbuff(str_hash, buf);
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if (!res || buf.size() != sizeof(t_pod_type))
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{
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return false;
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}
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else
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{
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buf.copy(reinterpret_cast<char *>(&t_pod), sizeof(t_pod_type));
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return true;
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}
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}
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//----------------------------------------------------------------------------
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PUSH_WARNINGS
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DISABLE_GCC_WARNING(maybe-uninitialized)
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template<class XType>
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inline bool get_xtype_from_string(OUT XType& val, const std::string& str_id)
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{
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if (std::is_integral<XType>::value && !std::numeric_limits<XType>::is_signed && !std::is_same<XType, bool>::value)
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{
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for (char c : str_id)
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{
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if (!std::isdigit(c))
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return false;
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}
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}
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try
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{
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val = boost::lexical_cast<XType>(str_id);
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return true;
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}
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catch(const std::exception& /*e*/)
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{
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//const char* pmsg = e.what();
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return false;
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}
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catch(...)
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{
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return false;
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}
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return true;
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}
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POP_WARNINGS
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//----------------------------------------------------------------------------
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template<class XType>
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inline bool xtype_to_string(const XType& val, std::string& str)
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{
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try
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{
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str = boost::lexical_cast<std::string>(val);
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}
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catch(...)
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{
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return false;
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}
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return true;
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}
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//----------------------------------------------------------------------------
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std::string get_ip_string_from_int32(uint32_t ip);
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//----------------------------------------------------------------------------
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bool get_ip_int32_from_string(uint32_t& ip, const std::string& ip_str);
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//----------------------------------------------------------------------------
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inline bool parse_peer_from_string(uint32_t& ip, uint16_t& port, const std::string& addres)
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{
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//parse ip and address
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std::string::size_type p = addres.find(':');
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std::string ip_str, port_str;
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if(p == std::string::npos)
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{
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port = 0;
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ip_str = addres;
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}
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else
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{
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ip_str = addres.substr(0, p);
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port_str = addres.substr(p+1, addres.size());
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}
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if(!get_ip_int32_from_string(ip, ip_str))
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{
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return false;
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}
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if(p != std::string::npos && !get_xtype_from_string(port, port_str))
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{
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return false;
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}
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return true;
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}
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inline std::string num_to_string_fast(int64_t val)
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{
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/*
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char buff[30] = {0};
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i64toa_s(val, buff, sizeof(buff)-1, 10);
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return buff;*/
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return boost::lexical_cast<std::string>(val);
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}
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//----------------------------------------------------------------------------
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inline bool compare_no_case(const std::string& str1, const std::string& str2)
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{
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return !boost::iequals(str1, str2);
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}
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//----------------------------------------------------------------------------
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inline std::string& get_current_module_name()
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{
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static std::string module_name;
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return module_name;
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}
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//----------------------------------------------------------------------------
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inline std::string& get_current_module_folder()
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{
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static std::string module_folder;
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return module_folder;
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}
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//----------------------------------------------------------------------------
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#ifdef _WIN32
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inline std::string get_current_module_path()
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{
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char pname [5000] = {0};
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GetModuleFileNameA( NULL, pname, sizeof(pname));
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pname[sizeof(pname)-1] = 0; //be happy ;)
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return pname;
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}
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#endif
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//----------------------------------------------------------------------------
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inline bool set_module_name_and_folder(const std::string& path_to_process_)
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{
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std::string path_to_process = path_to_process_;
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#ifdef _WIN32
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path_to_process = get_current_module_path();
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#endif
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std::string::size_type a = path_to_process.rfind( '\\' );
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if(a == std::string::npos )
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{
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a = path_to_process.rfind( '/' );
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}
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if ( a != std::string::npos )
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{
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get_current_module_name() = path_to_process.substr(a+1, path_to_process.size());
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get_current_module_folder() = path_to_process.substr(0, a);
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return true;
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}else
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return false;
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}
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//----------------------------------------------------------------------------
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inline bool trim_left(std::string& str)
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{
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for(std::string::iterator it = str.begin(); it!= str.end() && isspace(static_cast<unsigned char>(*it));)
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str.erase(str.begin());
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return true;
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}
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//----------------------------------------------------------------------------
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inline bool trim_right(std::string& str)
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{
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for(std::string::reverse_iterator it = str.rbegin(); it!= str.rend() && isspace(static_cast<unsigned char>(*it));)
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str.erase( --((it++).base()));
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return true;
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}
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//----------------------------------------------------------------------------
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inline std::string& trim(std::string& str)
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{
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trim_left(str);
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trim_right(str);
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return str;
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}
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//----------------------------------------------------------------------------
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inline std::string trim(const std::string& str_)
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{
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std::string str = str_;
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trim_left(str);
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trim_right(str);
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return str;
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}
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//----------------------------------------------------------------------------
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inline std::string pad_string(std::string s, size_t n, char c = ' ', bool prepend = false)
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{
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if (s.size() < n)
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{
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if (prepend)
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s = std::string(n - s.size(), c) + s;
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else
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s.append(n - s.size(), c);
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}
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return s;
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}
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//----------------------------------------------------------------------------
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template<class t_pod_type>
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std::string pod_to_hex(const t_pod_type& s)
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{
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static_assert(std::is_standard_layout<t_pod_type>(), "expected standard layout type");
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return to_hex::string(as_byte_span(s));
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}
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//----------------------------------------------------------------------------
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template<class t_pod_type>
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bool hex_to_pod(const std::string& hex_str, t_pod_type& s)
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{
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static_assert(std::is_pod<t_pod_type>::value, "expected pod type");
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std::string hex_str_tr = trim(hex_str);
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if(sizeof(s)*2 != hex_str.size())
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return false;
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std::string bin_buff;
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if(!parse_hexstr_to_binbuff(hex_str_tr, bin_buff))
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return false;
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if(bin_buff.size()!=sizeof(s))
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return false;
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s = *(t_pod_type*)bin_buff.data();
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return true;
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}
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//----------------------------------------------------------------------------
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template<class t_pod_type>
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bool hex_to_pod(const std::string& hex_str, tools::scrubbed<t_pod_type>& s)
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{
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return hex_to_pod(hex_str, unwrap(s));
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}
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//----------------------------------------------------------------------------
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bool validate_hex(uint64_t length, const std::string& str);
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//----------------------------------------------------------------------------
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inline std::string get_extension(const std::string& str)
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{
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std::string res;
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std::string::size_type pos = str.rfind('.');
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if(std::string::npos == pos)
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return res;
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res = str.substr(pos+1, str.size()-pos);
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return res;
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}
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//----------------------------------------------------------------------------
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inline std::string cut_off_extension(const std::string& str)
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{
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std::string res;
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std::string::size_type pos = str.rfind('.');
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if(std::string::npos == pos)
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return str;
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res = str.substr(0, pos);
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return res;
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}
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//----------------------------------------------------------------------------
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#ifdef _WIN32
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inline std::wstring utf8_to_utf16(const std::string& str)
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{
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if (str.empty())
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return {};
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int wstr_size = MultiByteToWideChar(CP_UTF8, 0, &str[0], str.size(), NULL, 0);
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if (wstr_size == 0)
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{
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throw std::runtime_error(std::error_code(GetLastError(), std::system_category()).message());
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}
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std::wstring wstr(wstr_size, wchar_t{});
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if (!MultiByteToWideChar(CP_UTF8, 0, &str[0], str.size(), &wstr[0], wstr_size))
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{
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throw std::runtime_error(std::error_code(GetLastError(), std::system_category()).message());
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}
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return wstr;
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}
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inline std::string utf16_to_utf8(const std::wstring& wstr)
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{
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if (wstr.empty())
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return {};
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int str_size = WideCharToMultiByte(CP_UTF8, 0, &wstr[0], wstr.size(), NULL, 0, NULL, NULL);
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if (str_size == 0)
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{
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throw std::runtime_error(std::error_code(GetLastError(), std::system_category()).message());
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}
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std::string str(str_size, char{});
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if (!WideCharToMultiByte(CP_UTF8, 0, &wstr[0], wstr.size(), &str[0], str_size, NULL, NULL))
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{
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throw std::runtime_error(std::error_code(GetLastError(), std::system_category()).message());
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}
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return str;
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}
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#endif
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}
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}
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#endif //_STRING_TOOLS_H_
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