<
/*
  zip_stat_index.c -- get information about file by index
  Copyright (C) 1999-2016 Dieter Baron and Thomas Klausner

  This file is part of libzip, a library to manipulate ZIP archives.
  The authors can be contacted at <libzip@nih.at>

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
     distribution.
  3. The names of the authors may not be used to endorse or promote
     products derived from this software without specific prior
     written permission.

  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/


#include "zipint.h"


ZIP_EXTERN int
zip_stat_index(zip_t *za, zip_uint64_t index, zip_flags_t flags, zip_stat_t *st) {
    const char *name;
    zip_dirent_t *de;

    if ((de = _zip_get_dirent(za, index, flags, NULL)) == NULL)
	return -1;

    if ((name = zip_get_name(za, index, flags)) == NULL)
	return -1;


    if ((flags & ZIP_FL_UNCHANGED) == 0 && ZIP_ENTRY_DATA_CHANGED(za->entry + index)) {
	if (zip_source_stat(za->entry[index].source, st) < 0) {
	    zip_error_set(&za->error, ZIP_ER_CHANGED, 0);
	    return -1;
	}
    }
    else {
	zip_stat_init(st);

	st->crc = de->crc;
	st->size = de->uncomp_size;
	st->mtime = de->last_mod;
	st->comp_size = de->comp_size;
	st->comp_method = (zip_uint16_t)de->.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file)
 and all other portions of this file are Copyright (c) 2013-2017 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#ifdef __GNUC__
#	include <cxxabi.h>
#endif
#include <locale>
#include <typeinfo>
#include "Buffer.h"
#include "Exception.h"
#include "ForEach.h"
#include "StringConverter.h"
#include "SystemException.h"

namespace VeraCrypt
{
	void StringConverter::Erase (string &str)
	{
		for (size_t i = 0; i < str.size(); ++i)
		{
			str[i] = ' ';
		}
	}

	void StringConverter::Erase (wstring &str)
	{
		for (size_t i = 0; i < str.size(); ++i)
		{
			str[i] = ' ';
		}
	}

	wstring StringConverter::FromNumber (double number)
	{
		wstringstream s;
		s << number;
		return s.str();
	}

	wstring StringConverter::FromNumber (int32 number)
	{
		wstringstream s;
		s << number;
		return s.str();
	}

	wstring StringConverter::FromNumber (uint32 number)
	{
		wstringstream s;
		s << number;
		return s.str();
	}

	wstring StringConverter::FromNumber (int64 number)
	{
		wstringstream s;
		s << number;
		return s.str();
	}

	wstring StringConverter::FromNumber (uint64 number)
	{
		wstringstream s;
		s << number;
		return s.str();
	}

	string StringConverter::GetTrailingNumber (const string &str)
	{
		size_t start = str.find_last_not_of ("0123456789");
		if (start == string::npos)
			return str;

		string s = str.substr (start + 1);
		if (s.empty ())
			throw ParameterIncorrect (SRC_POS);

		return s;
	}

	string StringConverter::GetTypeName (const type_info &typeInfo)
	{
		try
		{
#ifdef _MSC_VER
			// type_info::name() leaks memory as of MS VC++ 8.0
			string rawName (typeInfo.raw_name());

			size_t cut1 = (rawName.find (".?A") != string::npos) ? 4 : string::npos;
			size_t cut2 = rawName.find ("@");
			size_t cut3 = rawName.find ("@@");

			if (cut1 == string::npos || cut2 == string::npos || cut3 == string::npos)
				return typeInfo.name();

			return rawName.substr (cut2 + 1, cut3 - cut2 - 1) + "::" + rawName.substr (cut1, cut2 - cut1);

#elif defined (__GNUC__)
			int status;
			char *name = abi::__cxa_demangle (typeInfo.name(), nullptr, nullptr, &status);

			if (name)
			{
				string s (name);
				free (name);
				return s;
			}
#endif
		}
		catch (...) { }

		return typeInfo.name();
	}

	wstring StringConverter::QuoteSpaces (const wstring &str)
	{
		if (str.find (L' ') == string::npos)
			return str;

		wstring escaped (L"'");
		foreach (wchar_t c, str)
		{
			if (c == L'\'')
				escaped += L'\'';
			escaped += c;
		}
		return escaped + L'\'';
	}

	vector <string> StringConverter::Split (const string &str, const string &separators, bool returnEmptyFields)
	{
		vector <string> elements;

		if (!returnEmptyFields)
		{
			size_t p = 0;
			while ((p = str.find_first_not_of (separators, p)) != string::npos)
			{
				size_t end = str.find_first_of (separators, p);
				if (end == string::npos)
				{
					elements.push_back (str.substr (p));
					break;
				}

				elements.push_back (str.substr (p, end - p));
				p = end;
			}
		}
		else
		{
			string element;
			elements.push_back (element);
			foreach (char c, str)
			{
				if (separators.find (c) != string::npos)
				{
					element.erase();
					elements.push_back (element);
				}
				else
				{
					elements.back() += c;
				}
			}
		}

		return elements;
	}

	string StringConverter::StripTrailingNumber (const string &str)
	{
		size_t start = str.find_last_not_of ("0123456789");
		if (start == string::npos)
			return "";

		return str.substr (0, start + 1);
	}

	wstring StringConverter::ToExceptionString (const exception &ex)
	{
		const SystemException *sysEx = dynamic_cast <const SystemException *> (&ex);
		if (sysEx)
			return ToWide (sysEx->what()) + L": " + sysEx->SystemText() + L": " + sysEx->GetSubject();

		if (ex.what() && !string (ex.what()).empty())
			return ToWide (GetTypeName (typeid (ex)) + ": " + ex.what());

		return ToWide (GetTypeName (typeid (ex)));
	}

	string StringConverter::ToLower (const string &str)
	{
		string s;
		foreach (char c, str)
			s += tolower (c, locale());
		return s;
	}

	string StringConverter::ToSingle (const wstring &wstr, bool noThrow)
	{
		string str;
		ToSingle (wstr, str, noThrow);
		return str;
	}

	void StringConverter::ToSingle (const wstring &wstr, string &str, bool noThrow)
	{
		try
		{
			mbstate_t mbState;
			Memory::Zero (&mbState, sizeof (mbState));
			const wchar_t *src = wstr.c_str();

			size_t size = wcsrtombs (nullptr, &src, 0, &mbState);
			if (size == (size_t) -1)
				throw StringConversionFailed (SRC_POS, wstr);

			vector <char> buf (size + 1);
			Memory::Zero (&mbState, sizeof (mbState));

			if ((size = wcsrtombs (&buf[0], &src, buf.size(), &mbState)) == (size_t) -1)
				throw StringConversionFailed (SRC_POS, wstr);

			str.clear();
			str.insert (0, &buf.front(), size);
			burn (&buf.front(), buf.size());
		}
		catch (...)
		{
			if (!noThrow)
				throw;
		}
	}

	uint32 StringConverter::ToUInt32 (const string &str)
	{
		uint32 n;
		stringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0xffffFFFFU)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	uint32 StringConverter::ToUInt32 (const wstring &str)
	{
		uint32 n;
		wstringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0xffffFFFFU)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	int32 StringConverter::ToInt32 (const string &str)
	{
		int32 n;
		stringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0x7fffFFFF || n == -0x7fffFFFF)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	int32 StringConverter::ToInt32 (const wstring &str)
	{
		int32 n;
		wstringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0x7fffFFFF || n == -0x7fffFFFF)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	uint64 StringConverter::ToUInt64 (const string &str)
	{
		uint64 n;
		stringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0xffffFFFFffffFFFFULL)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	uint64 StringConverter::ToUInt64 (const wstring &str)
	{
		uint64 n;
		wstringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0xffffFFFFffffFFFFULL)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	int64 StringConverter::ToInt64 (const string &str)
	{
		int64 n;
		stringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0x7fffFFFFffffFFFFLL || n == -0x7fffFFFFffffFFFFLL)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	int64 StringConverter::ToInt64 (const wstring &str)
	{
		int64 n;
		wstringstream ss (str);

		ss >> n;
		if (ss.fail() || n == 0x7fffFFFFffffFFFFLL || n == -0x7fffFFFFffffFFFFLL)
			throw ParameterIncorrect (SRC_POS);

		return n;
	}

	string StringConverter::ToUpper (const string &str)
	{
		string s;
		foreach (char c, str)
			s += toupper (c, locale());
		return s;
	}

	wstring StringConverter::ToWide (const string &str, bool noThrow)
	{
		try
		{
			mbstate_t mbState;
			Memory::Zero (&mbState, sizeof (mbState));
			const char *src = str.c_str();

			size_t size = mbsrtowcs (nullptr, &src, 0, &mbState);
			if (size == (size_t) -1)
				throw StringConversionFailed (SRC_POS);

			vector <wchar_t> buf (size + 1);
			Memory::Zero (&mbState, sizeof (mbState));

			if ((size = mbsrtowcs (&buf[0], &src, buf.size(), &mbState)) == (size_t) -1)
				throw StringConversionFailed (SRC_POS);

			wstring s;
			s.insert (s.begin(), buf.begin(), buf.begin() + size);
			return s;
		}
		catch (...)
		{
			if (noThrow)
				return L"";
			throw;
		}
	}

	void StringConverter::ToWideBuffer (const wstring &str, wchar_t *buffer, size_t bufferSize)
	{
		if (str.length() < 1)
		{
			buffer[0] = 0;
			return;
		}

		BufferPtr (
			(byte *) buffer,
			bufferSize).CopyFrom (
				ConstBufferPtr ((byte *) (wstring (str).c_str()),
				(str.length() + 1) * sizeof (wchar_t)
			)
		);
	}

	string StringConverter::Trim (const string &str)
	{
		size_t start = 0;
		size_t end = str.size();
		if (end < 1)
			return str;

		foreach (char c, str)
		{
			if (c > ' ')
				break;
			++start;
		}

		foreach_reverse (char c, str)
		{
			if (c > ' ')
				break;
			--end;
		}

		return str.substr (start, end - start);
	}
}