mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
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395 lines
18 KiB
C++
395 lines
18 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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namespace ams::fs {
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namespace {
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constexpr size_t DefaultPathBufferSize = fs::EntryNameLengthMax + 1;
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//#define ENABLE_PRINT_FORMAT_TEST_DEBUGGING
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#if defined(ENABLE_PRINT_FORMAT_TEST_DEBUGGING)
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template<u32 Expected, u32 Actual>
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struct Print {
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constexpr Print() {
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if (std::is_constant_evaluated()) {
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__builtin_unreachable();
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}
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}
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};
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template<u32 E = 0, u32 A = 0, size_t N = 0>
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consteval void PrintResultMismatchImpl(u32 e, u32 a) {
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if constexpr (N == 32) {
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Print<E, A>{};
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} else {
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const bool is_e = (e & (1 << N)) != 0;
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const bool is_a = (a & (1 << N)) != 0;
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if (is_e) {
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if (is_a) {
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PrintResultMismatchImpl<E | (1 << N), A | (1 << N), N + 1>(e, a);
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} else {
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PrintResultMismatchImpl<E | (1 << N), A | (0 << N), N + 1>(e, a);
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}
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} else {
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if (is_a) {
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PrintResultMismatchImpl<E | (0 << N), A | (1 << N), N + 1>(e, a);
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} else {
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PrintResultMismatchImpl<E | (0 << N), A | (0 << N), N + 1>(e, a);
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}
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}
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}
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}
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consteval void PrintResultMismatch(const Result &lhs, const Result &rhs) {
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PrintResultMismatchImpl(lhs.GetDescription(), rhs.GetDescription());
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}
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template<size_t Index, char Expected, char Actual>
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struct PrintMismatchChar {
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constexpr PrintMismatchChar() {
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if (std::is_constant_evaluated()) {
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__builtin_unreachable();
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}
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}
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};
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template<size_t Ix, char Expected, size_t C = 0>
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consteval void PrintCharacterMismatch(char c) {
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if (c == static_cast<char>(C)) {
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PrintMismatchChar<Ix, Expected, static_cast<char>(C)>{};
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return;
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}
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if constexpr (C < std::numeric_limits<unsigned char>::max()) {
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PrintCharacterMismatch<Ix, Expected, C + 1>(c);
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}
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}
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template<size_t Ix, char C = 0>
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consteval void PrintCharacterMismatch(char c, char c2) {
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if (c == static_cast<char>(C)) {
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PrintCharacterMismatch<Ix, static_cast<char>(C)>(c2);
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return;
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}
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if constexpr (C < std::numeric_limits<unsigned char>::max()) {
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PrintCharacterMismatch<Ix, C + 1>(c, c2);
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}
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}
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template<size_t Ix = 0>
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consteval void PrintCharacterMismatch(size_t ix, char c, char c2) {
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if (Ix == ix) {
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PrintCharacterMismatch<Ix>(c, c2);
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return;
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}
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if constexpr (Ix <= DefaultPathBufferSize) {
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PrintCharacterMismatch<Ix + 1>(ix, c, c2);
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}
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}
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#endif
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consteval bool TestNormalizeImpl(const char *path, size_t buffer_size, const char *normalized, bool windows_path, bool drive_relative, bool all_chars, size_t expected_length, Result expected_result) {
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/* Allocate a buffer to normalize into. */
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char *buffer = new char[buffer_size];
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ON_SCOPE_EXIT { delete[] buffer; };
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buffer[buffer_size - 1] = '\xcc';
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/* Perform normalization. */
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size_t actual_length;
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const Result actual_result = PathNormalizer::Normalize(buffer, std::addressof(actual_length), path, buffer_size, windows_path, drive_relative, all_chars);
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/* Check that the expected result matches the actual. */
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if (actual_result.GetValue() != expected_result.GetValue()) {
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#if defined(ENABLE_PRINT_FORMAT_TEST_DEBUGGING)
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PrintResultMismatch(expected_result.GetValue(), actual_result.GetValue());
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#endif
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return false;
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}
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/* Check that the expected string matches the actual. */
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for (size_t i = 0; i < buffer_size; ++i) {
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if (normalized[i] != StringTraits::NullTerminator || R_SUCCEEDED(expected_result)) {
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if (buffer[i] != normalized[i]) {
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#if defined(ENABLE_PRINT_FORMAT_TEST_DEBUGGING)
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PrintCharacterMismatch(i, normalized[i], buffer[i]);
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#endif
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return false;
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}
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}
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if (normalized[i] == StringTraits::NullTerminator || buffer[i] == StringTraits::NullTerminator) {
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break;
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}
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}
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/* Check that the expected length matches the actual. */
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if (R_SUCCEEDED(expected_result) || fs::ResultTooLongPath::Includes(expected_result)) {
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if (expected_length != actual_length) {
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#if defined(ENABLE_PRINT_FORMAT_TEST_DEBUGGING)
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PrintResultMismatchImpl(static_cast<u32>(expected_length), static_cast<u32>(actual_length));
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#endif
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return false;
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}
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}
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return true;
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}
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struct NormalizeTestData {
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const char *path;
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bool windows;
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bool rel;
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bool allow_all;
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const char *normalized;
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size_t len;
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Result result;
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};
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template<size_t N, size_t Ix = 0>
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consteval bool DoNormalizeTests(const NormalizeTestData (&tests)[N]) {
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if constexpr (Ix >= N) {
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return true;
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}
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const auto &test = tests[Ix];
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if (!TestNormalizeImpl(test.path, DefaultPathBufferSize, test.normalized, test.windows, test.rel, test.allow_all, test.len, test.result)) {
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return false;
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}
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if constexpr (Ix < N) {
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return DoNormalizeTests<N, Ix + 1>(tests);
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} else {
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AMS_ASSUME(false);
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}
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}
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consteval bool TestNormalized() {
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constexpr NormalizeTestData Tests[] = {
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{ "/aa/bb/c/", false, true, false, "/aa/bb/c", 8, ResultSuccess() },
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{ "aa/bb/c/", false, false, false, "", 0, fs::ResultInvalidPathFormat() },
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{ "aa/bb/c/", false, true, false, "/aa/bb/c", 8, ResultSuccess() },
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{ "mount:a/b", false, true, false, "/", 0, fs::ResultInvalidCharacter() },
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{ "mo|unt:a/b", false, true, true, "/mo|unt:a/b", 11, ResultSuccess() },
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{ "/aa/bb/../..", true, false, false, "/", 1, ResultSuccess() },
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{ "/aa/bb/../../..", true, false, false, "/", 1, ResultSuccess() },
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{ "/aa/bb/../../..", false, false, false, "/aa/bb/", 0, fs::ResultDirectoryUnobtainable() },
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{ "aa/bb/../../..", true, true, false, "/", 1, ResultSuccess() },
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{ "aa/bb/../../..", false, true, false, "/aa/bb/", 0, fs::ResultDirectoryUnobtainable() },
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{ "mount:a/b", false, true, true, "/mount:a/b", 10, ResultSuccess() },
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{ "/a|/bb/cc", false, false, true, "/a|/bb/cc", 9, ResultSuccess() },
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{ "/>a/bb/cc", false, false, true, "/>a/bb/cc", 9, ResultSuccess() },
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{ "/aa/.</cc", false, false, true, "/aa/.</cc", 9, ResultSuccess() },
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{ "/aa/..</cc", false, false, true, "/aa/..</cc", 10, ResultSuccess() },
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{ "", false, false, false, "", 0, fs::ResultInvalidPathFormat() },
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{ "/", false, false, false, "/", 1, ResultSuccess() },
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{ "/.", false, false, false, "/", 1, ResultSuccess() },
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{ "/./", false, false, false, "/", 1, ResultSuccess() },
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{ "/..", false, false, false, "/", 0, fs::ResultDirectoryUnobtainable() },
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{ "//.", false, false, false, "/", 1, ResultSuccess() },
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{ "/ ..", false, false, false, "/ ..", 4, ResultSuccess() },
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{ "/.. /", false, false, false, "/.. ", 4, ResultSuccess() },
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{ "/. /.", false, false, false, "/. ", 3, ResultSuccess() },
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{ "/aa/bb/cc/dd/./.././../..", false, false, false, "/aa", 3, ResultSuccess() },
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{ "/aa/bb/cc/dd/./.././../../..", false, false, false, "/", 1, ResultSuccess() },
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{ "/./aa/./bb/./cc/./dd/.", false, false, false, "/aa/bb/cc/dd", 12, ResultSuccess() },
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{ "/aa\\bb/cc", false, false, false, "/aa\\bb/cc", 9, ResultSuccess() },
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{ "/aa\\bb/cc", false, false, false, "/aa\\bb/cc", 9, ResultSuccess() },
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{ "/a|/bb/cc", false, false, false, "/", 0, fs::ResultInvalidCharacter() },
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{ "/>a/bb/cc", false, false, false, "/", 0, fs::ResultInvalidCharacter() },
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{ "/aa/.</cc", false, false, false, "/aa/", 0, fs::ResultInvalidCharacter() },
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{ "/aa/..</cc", false, false, false, "/aa/", 0, fs::ResultInvalidCharacter() },
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{ "\\\\aa/bb/cc", false, false, false, "", 0, fs::ResultInvalidPathFormat() },
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{ "\\\\aa\\bb\\cc", false, false, false, "", 0, fs::ResultInvalidPathFormat() },
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{ "/aa/bb/..\\cc", false, false, false, "/aa/cc", 6, ResultSuccess() },
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{ "/aa/bb\\..\\cc", false, false, false, "/aa/cc", 6, ResultSuccess() },
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{ "/aa/bb\\..", false, false, false, "/aa", 3, ResultSuccess() },
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{ "/aa\\bb/../cc", false, false, false, "/cc", 3, ResultSuccess() }
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};
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return DoNormalizeTests(Tests);
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}
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static_assert(TestNormalized());
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struct NormalizeTestDataSmallBuffer {
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const char *path;
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size_t buffer_size;
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const char *normalized;
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size_t len;
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Result result;
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};
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template<size_t N, size_t Ix = 0>
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consteval bool DoNormalizeTests(const NormalizeTestDataSmallBuffer (&tests)[N]) {
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if constexpr (Ix >= N) {
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return true;
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}
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const auto &test = tests[Ix];
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if (!TestNormalizeImpl(test.path, test.buffer_size, test.normalized, false, false, false, test.len, test.result)) {
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return false;
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}
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if constexpr (Ix < N) {
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return DoNormalizeTests<N, Ix + 1>(tests);
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} else {
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AMS_ASSUME(false);
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}
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}
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consteval bool TestNormalizedSmallBuffer() {
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constexpr NormalizeTestDataSmallBuffer Tests[] = {
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{ "/aa/bb/cc/", 7, "/aa/bb", 6, fs::ResultTooLongPath() },
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{ "/aa/bb/cc/", 8, "/aa/bb/", 7, fs::ResultTooLongPath() },
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{ "/aa/bb/cc/", 9, "/aa/bb/c", 8, fs::ResultTooLongPath() },
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{ "/aa/bb/cc/", 10, "/aa/bb/cc", 9, ResultSuccess() },
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{ "/aa/bb/cc", 9, "/aa/bb/c", 8, fs::ResultTooLongPath() },
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{ "/aa/bb/cc", 10, "/aa/bb/cc", 9, ResultSuccess() },
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{ "/./aa/./bb/./cc", 9, "/aa/bb/c", 8, fs::ResultTooLongPath() },
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{ "/./aa/./bb/./cc", 10, "/aa/bb/cc", 9, ResultSuccess() },
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{ "/aa/bb/cc/../../..", 9, "/aa/bb/c", 8, fs::ResultTooLongPath() },
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{ "/aa/bb/cc/../../..", 10, "/aa/bb/cc", 9, fs::ResultTooLongPath() },
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{ "/aa/bb/.", 7, "/aa/bb", 6, fs::ResultTooLongPath() },
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{ "/aa/bb/./", 7, "/aa/bb", 6, fs::ResultTooLongPath() },
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{ "/aa/bb/..", 8, "/aa", 3, ResultSuccess() },
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{ "/aa/bb", 1, "", 0, fs::ResultTooLongPath() },
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{ "/aa/bb", 2, "/", 1, fs::ResultTooLongPath() },
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{ "/aa/bb", 3, "/a", 2, fs::ResultTooLongPath() },
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{ "aa/bb", 1, "", 0, fs::ResultInvalidPathFormat() }
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};
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return DoNormalizeTests(Tests);
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}
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static_assert(TestNormalizedSmallBuffer());
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consteval bool TestIsNormalizedImpl(const char *path, bool allow_all, bool expected_normalized, size_t expected_size, Result expected_result) {
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/* Perform normalization checking. */
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bool actual_normalized;
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size_t actual_size = 0;
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const Result actual_result = PathNormalizer::IsNormalized(std::addressof(actual_normalized), std::addressof(actual_size), path, allow_all);
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/* Check that the expected result matches the actual. */
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if (actual_result.GetValue() != expected_result.GetValue()) {
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#if defined(ENABLE_PRINT_FORMAT_TEST_DEBUGGING)
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PrintResultMismatch(expected_result.GetValue(), actual_result.GetValue());
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#endif
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return false;
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}
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if (expected_size != actual_size) {
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#if defined(ENABLE_PRINT_FORMAT_TEST_DEBUGGING)
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PrintResultMismatchImpl(static_cast<u32>(expected_size), static_cast<u32>(actual_size));
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#endif
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return false;
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}
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/* Check that the expected output matches the actual. */
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if (R_SUCCEEDED(expected_result)) {
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if (expected_normalized != actual_normalized) {
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#if defined(ENABLE_PRINT_FORMAT_TEST_DEBUGGING)
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PrintResultMismatchImpl(static_cast<u32>(expected_normalized), static_cast<u32>(actual_normalized));
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#endif
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return false;
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}
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}
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return true;
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}
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struct IsNormalizedTestData {
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const char *path;
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bool allow_all;
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bool normalized;
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size_t len;
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Result result;
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};
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template<size_t N, size_t Ix = 0>
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consteval bool DoIsNormalizedTests(const IsNormalizedTestData (&tests)[N]) {
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if constexpr (Ix >= N) {
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return true;
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}
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const auto &test = tests[Ix];
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if (!TestIsNormalizedImpl(test.path, test.allow_all, test.normalized, test.len, test.result)) {
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return false;
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}
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if constexpr (Ix < N) {
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return DoIsNormalizedTests<N, Ix + 1>(tests);
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} else {
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AMS_ASSUME(false);
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}
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}
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consteval bool TestIsNormalized() {
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constexpr IsNormalizedTestData Tests[] = {
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{ "/aa/bb/c/", false, false, 9, ResultSuccess() },
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{ "aa/bb/c/", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "aa/bb/c/", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "mount:a/b", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "mo|unt:a/b", true, false, 0, fs::ResultInvalidPathFormat() },
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{ "/aa/bb/../..", false, false, 0, ResultSuccess() },
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{ "/aa/bb/../../..", false, false, 0, ResultSuccess() },
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{ "/aa/bb/../../..", false, false, 0, ResultSuccess() },
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{ "aa/bb/../../..", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "aa/bb/../../..", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "mount:a/b", true, false, 0, fs::ResultInvalidPathFormat() },
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{ "/a|/bb/cc", true, true, 9, ResultSuccess() },
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{ "/>a/bb/cc", true, true, 9, ResultSuccess() },
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{ "/aa/.</cc", true, true, 9, ResultSuccess() },
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{ "/aa/..</cc", true, true, 10, ResultSuccess() },
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{ "", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "/", false, true, 1, ResultSuccess() },
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{ "/.", false, false, 2, ResultSuccess() },
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{ "/./", false, false, 0, ResultSuccess() },
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{ "/..", false, false, 3, ResultSuccess() },
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{ "//.", false, false, 0, ResultSuccess() },
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{ "/ ..", false, true, 4, ResultSuccess() },
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{ "/.. /", false, false, 5, ResultSuccess() },
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{ "/. /.", false, false, 5, ResultSuccess() },
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{ "/aa/bb/cc/dd/./.././../..", false, false, 0, ResultSuccess() },
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{ "/aa/bb/cc/dd/./.././../../..", false, false, 0, ResultSuccess() },
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{ "/./aa/./bb/./cc/./dd/.", false, false, 0, ResultSuccess() },
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{ "/aa\\bb/cc", false, true, 9, ResultSuccess() },
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{ "/aa\\bb/cc", false, true, 9, ResultSuccess() },
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{ "/a|/bb/cc", false, false, 0, fs::ResultInvalidCharacter() },
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{ "/>a/bb/cc", false, false, 0, fs::ResultInvalidCharacter() },
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{ "/aa/.</cc", false, false, 0, fs::ResultInvalidCharacter() },
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{ "/aa/..</cc", false, false, 0, fs::ResultInvalidCharacter() },
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{ "\\\\aa/bb/cc", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "\\\\aa\\bb\\cc", false, false, 0, fs::ResultInvalidPathFormat() },
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{ "/aa/bb/..\\cc", false, true, 12, ResultSuccess() },
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{ "/aa/bb\\..\\cc", false, true, 12, ResultSuccess() },
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{ "/aa/bb\\..", false, true, 9, ResultSuccess() },
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{ "/aa\\bb/../cc", false, false, 0, ResultSuccess() }
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};
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return DoIsNormalizedTests(Tests);
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}
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static_assert(TestIsNormalized());
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}
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}
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