| // Copyright 2015 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/at_exit.h" |
| #include "base/check_op.h" |
| #include "base/i18n/icu_util.h" |
| #include "base/no_destructor.h" |
| #include "url/gurl.h" |
| |
| struct TestCase { |
| TestCase() { CHECK(base::i18n::InitializeICU()); } |
| |
| // used by ICU integration. |
| base::AtExitManager at_exit_manager; |
| }; |
| |
| TestCase* test_case = new TestCase(); |
| |
| // Checks that GURL's canonicalization is idempotent. This can help discover |
| // issues like https://crbug.com/1128999. |
| void CheckIdempotency(const GURL& url) { |
| if (!url.is_valid()) |
| return; |
| const std::string& spec = url.spec(); |
| GURL recanonicalized(spec); |
| CHECK(recanonicalized.is_valid()); |
| CHECK_EQ(spec, recanonicalized.spec()); |
| } |
| |
| // Checks that |url.spec()| is preserved across a call to ReplaceComponents with |
| // zero replacements, which is effectively a copy. This can help discover issues |
| // like https://crbug.com/1075515. |
| void CheckReplaceComponentsPreservesSpec(const GURL& url) { |
| static const base::NoDestructor<GURL::Replacements> no_op; |
| GURL copy = url.ReplaceComponents(*no_op); |
| CHECK_EQ(url.is_valid(), copy.is_valid()); |
| if (url.is_valid()) { |
| CHECK_EQ(url.spec(), copy.spec()); |
| } |
| } |
| |
| // Entry point for LibFuzzer. |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| if (size < 1) |
| return 0; |
| { |
| base::StringPiece string_piece_input(reinterpret_cast<const char*>(data), |
| size); |
| const GURL url_from_string_piece(string_piece_input); |
| CheckIdempotency(url_from_string_piece); |
| CheckReplaceComponentsPreservesSpec(url_from_string_piece); |
| } |
| // Test for StringPiece16 if size is even. |
| if (size % sizeof(char16_t) == 0) { |
| base::StringPiece16 string_piece_input16( |
| reinterpret_cast<const char16_t*>(data), size / sizeof(char16_t)); |
| const GURL url_from_string_piece16(string_piece_input16); |
| CheckIdempotency(url_from_string_piece16); |
| CheckReplaceComponentsPreservesSpec(url_from_string_piece16); |
| } |
| // Resolve relative url tests. |
| { |
| size_t size_t_bytes = sizeof(size_t); |
| if (size < size_t_bytes + 1) { |
| return 0; |
| } |
| size_t relative_size = |
| *reinterpret_cast<const size_t*>(data) % (size - size_t_bytes); |
| std::string relative_string( |
| reinterpret_cast<const char*>(data + size_t_bytes), relative_size); |
| base::StringPiece string_piece_part_input( |
| reinterpret_cast<const char*>(data + size_t_bytes + relative_size), |
| size - relative_size - size_t_bytes); |
| const GURL url_from_string_piece_part(string_piece_part_input); |
| CheckIdempotency(url_from_string_piece_part); |
| CheckReplaceComponentsPreservesSpec(url_from_string_piece_part); |
| |
| url_from_string_piece_part.Resolve(relative_string); |
| |
| if (relative_size % sizeof(char16_t) == 0) { |
| std::u16string relative_string16( |
| reinterpret_cast<const char16_t*>(data + size_t_bytes), |
| relative_size / sizeof(char16_t)); |
| url_from_string_piece_part.Resolve(relative_string16); |
| } |
| } |
| return 0; |
| } |