/*-
 * Copyright (c) 2011 Michihiro NAKAJIMA
 * All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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 "test.h"
#include <locale.h>

DEFINE_TEST(test_gnutar_filename_encoding_UTF8_CP866)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "en_US.UTF-8")) {
		skipping("en_US.UTF-8 locale not available on this system.");
		return;
	}

	/*
	 * Verify that UTF-8 filenames are correctly translated into CP866
	 * and stored with hdrcharset=CP866 option.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=CP866") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from UTF-8 to CP866.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set a UTF-8 filename. */
	archive_entry_set_pathname(entry, "\xD0\xBF\xD1\x80\xD0\xB8");
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Above three characters in UTF-8 should translate to the following
	 * three characters in CP866. */
	assertEqualMem(buff, "\xAF\xE0\xA8", 3);
}

DEFINE_TEST(test_gnutar_filename_encoding_KOI8R_UTF8)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "ru_RU.KOI8-R")) {
		skipping("KOI8-R locale not available on this system.");
		return;
	}

	/*
	 * Verify that KOI8-R filenames are correctly translated into UTF-8
	 * and stored with hdrcharset=UTF-8 option.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=UTF-8") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from KOI8-R to UTF-8.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set a KOI8-R filename. */
	archive_entry_set_pathname(entry, "\xD0\xD2\xC9");
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Above three characters in KOI8-R should translate to the following
	 * three characters (two bytes each) in UTF-8. */
	assertEqualMem(buff, "\xD0\xBF\xD1\x80\xD0\xB8", 6);
}

DEFINE_TEST(test_gnutar_filename_encoding_KOI8R_CP866)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "ru_RU.KOI8-R")) {
		skipping("KOI8-R locale not available on this system.");
		return;
	}

	/*
	 * Verify that KOI8-R filenames are correctly translated into CP866
	 * and stored with hdrcharset=CP866 option.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=CP866") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from KOI8-R to CP866.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set a KOI8-R filename. */
	archive_entry_set_pathname(entry, "\xD0\xD2\xC9");
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Above three characters in KOI8-R should translate to the following
	 * three characters in CP866. */
	assertEqualMem(buff, "\xAF\xE0\xA8", 3);
}

DEFINE_TEST(test_gnutar_filename_encoding_CP1251_UTF8)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "Russian_Russia") &&
	    NULL == setlocale(LC_ALL, "ru_RU.CP1251")) {
		skipping("KOI8-R locale not available on this system.");
		return;
	}

	/*
	 * Verify that CP1251 filenames are correctly translated into UTF-8
	 * and stored with hdrcharset=UTF-8 option.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=UTF-8") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from KOI8-R to UTF-8.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set a KOI8-R filename. */
	archive_entry_set_pathname(entry, "\xEF\xF0\xE8");
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Above three characters in CP1251 should translate to the following
	 * three characters (two bytes each) in UTF-8. */
	assertEqualMem(buff, "\xD0\xBF\xD1\x80\xD0\xB8", 6);
}

/*
 * Do not translate CP1251 into CP866 if non Windows platform.
 */
DEFINE_TEST(test_gnutar_filename_encoding_ru_RU_CP1251)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "ru_RU.CP1251")) {
		skipping("KOI8-R locale not available on this system.");
		return;
	}

	/*
	 * Verify that CP1251 filenames are not translated into any
	 * other character-set, in particular, CP866.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set a KOI8-R filename. */
	archive_entry_set_pathname(entry, "\xEF\xF0\xE8");
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Above three characters in CP1251 should not translate to
	 * any other character-set. */
	assertEqualMem(buff, "\xEF\xF0\xE8", 3);
}

/*
 * Other archiver applications on Windows translate CP1251 filenames
 * into CP866 filenames and store it in the gnutar file.
 * Test above behavior works well.
 */
DEFINE_TEST(test_gnutar_filename_encoding_Russian_Russia)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "Russian_Russia")) {
		skipping("Russian_Russia locale not available on this system.");
		return;
	}

	/*
	 * Verify that Russian_Russia(CP1251) filenames are correctly translated
	 * to CP866.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set a CP1251 filename. */
	archive_entry_set_pathname(entry, "\xEF\xF0\xE8");
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Above three characters in CP1251 should translate to the following
	 * three characters in CP866. */
	assertEqualMem(buff, "\xAF\xE0\xA8", 3);
}

DEFINE_TEST(test_gnutar_filename_encoding_EUCJP_UTF8)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "ja_JP.eucJP")) {
		skipping("eucJP locale not available on this system.");
		return;
	}

	/*
	 * Verify that EUC-JP filenames are correctly translated to UTF-8.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=UTF-8") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from eucJP to UTF-8.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set an EUC-JP filename. */
	archive_entry_set_pathname(entry, "\xC9\xBD.txt");
	/* Check the Unicode version. */
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Check UTF-8 version. */
	assertEqualMem(buff, "\xE8\xA1\xA8.txt", 7);
}

DEFINE_TEST(test_gnutar_filename_encoding_EUCJP_CP932)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "ja_JP.eucJP")) {
		skipping("eucJP locale not available on this system.");
		return;
	}

	/*
	 * Verify that EUC-JP filenames are correctly translated to CP932.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=CP932") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from eucJP to CP932.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set an EUC-JP filename. */
	archive_entry_set_pathname(entry, "\xC9\xBD.txt");
	/* Check the Unicode version. */
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Check CP932 version. */
	assertEqualMem(buff, "\x95\x5C.txt", 6);
}

DEFINE_TEST(test_gnutar_filename_encoding_CP932_UTF8)
{
  	struct archive *a;
  	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	if (NULL == setlocale(LC_ALL, "Japanese_Japan") &&
	    NULL == setlocale(LC_ALL, "ja_JP.SJIS")) {
		skipping("CP932/SJIS locale not available on this system.");
		return;
	}

	/*
	 * Verify that CP932/SJIS filenames are correctly translated to UTF-8.
	 */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=UTF-8") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from CP932/SJIS to UTF-8.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set an CP932/SJIS filename. */
	archive_entry_set_pathname(entry, "\x95\x5C.txt");
	/* Check the Unicode version. */
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Check UTF-8 version. */
	assertEqualMem(buff, "\xE8\xA1\xA8.txt", 7);
}

DEFINE_TEST(test_gnutar_filename_encoding_UTF16_win)
{
#if !defined(_WIN32) || defined(__CYGWIN__)
	skipping("This test is meant to verify unicode string handling"
		" on Windows with UTF-16 names");
	return;
#else
	struct archive *a;
	struct archive_entry *entry;
	char buff[4096];
	size_t used;

	/*
	 * Don't call setlocale because we're verifying that the '_w' functions
	 * work as expected when 'hdrcharset' is UTF-8
	 */

	/* Part 1: file */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	if (archive_write_set_options(a, "hdrcharset=UTF-8") != ARCHIVE_OK) {
		skipping("This system cannot convert character-set"
		    " from UTF-16 to UTF-8.");
		archive_write_free(a);
		return;
	}
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set the filename using a UTF-16 string */
	archive_entry_copy_pathname_w(entry, L"\u8868.txt");
	archive_entry_set_filetype(entry, AE_IFREG);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Check UTF-8 version. */
	assertEqualMem(buff, "\xE8\xA1\xA8.txt", 7);

	/* Part 2: directory */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	assertEqualInt(ARCHIVE_OK, archive_write_set_options(a, "hdrcharset=UTF-8"));
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set the directory name using a UTF-16 string */
	/* NOTE: Explicitly not adding trailing slash to test that code path */
	archive_entry_copy_pathname_w(entry, L"\u8868");
	archive_entry_set_filetype(entry, AE_IFDIR);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Check UTF-8 version. */
	assertEqualMem(buff, "\xE8\xA1\xA8/", 4);

	/* Part 3: symlink */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	assertEqualInt(ARCHIVE_OK, archive_write_set_options(a, "hdrcharset=UTF-8"));
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set the symlink target using a UTF-16 string */
	archive_entry_set_pathname(entry, "link.txt");
	archive_entry_copy_symlink_w(entry, L"\u8868.txt");
	archive_entry_set_filetype(entry, AE_IFLNK);
	archive_entry_set_symlink_type(entry, AE_SYMLINK_TYPE_FILE);
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Check UTF-8 version. */
	assertEqualMem(buff + 157, "\xE8\xA1\xA8.txt", 7);

	/* Part 4: hardlink */
	a = archive_write_new();
	assertEqualInt(ARCHIVE_OK, archive_write_set_format_gnutar(a));
	assertEqualInt(ARCHIVE_OK, archive_write_set_options(a, "hdrcharset=UTF-8"));
	assertEqualInt(ARCHIVE_OK,
	    archive_write_open_memory(a, buff, sizeof(buff), &used));

	entry = archive_entry_new2(a);
	/* Set the symlink target using a UTF-16 string */
	archive_entry_set_pathname(entry, "link.txt");
	archive_entry_copy_hardlink_w(entry, L"\u8868.txt");
	archive_entry_set_size(entry, 0);
	assertEqualInt(ARCHIVE_OK, archive_write_header(a, entry));
	archive_entry_free(entry);
	assertEqualInt(ARCHIVE_OK, archive_write_free(a));

	/* Check UTF-8 version. */
	assertEqualMem(buff + 157, "\xE8\xA1\xA8.txt", 7);
#endif
}