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87 lines
3.2 KiB
87 lines
3.2 KiB
/* Copyright 2025 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "phonenumbers/phonenumbermatcher.h"
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#include <memory>
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#include <string>
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#include <vector>
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#include <limits>
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#include <unicode/unistr.h>
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#include "phonenumbers/base/basictypes.h"
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#include "phonenumbers/base/memory/scoped_ptr.h"
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#include "phonenumbers/base/memory/singleton.h"
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#include "phonenumbers/default_logger.h"
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#include "phonenumbers/phonenumber.h"
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#include "phonenumbers/phonenumbermatch.h"
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#include "phonenumbers/regexp_adapter_icu.h"
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#include "phonenumbers/phonenumberutil.h"
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#include "phonenumbers/stringutil.h"
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#include "phonenumbers/asyoutypeformatter.h"
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#include "phonenumbers/shortnumberinfo.h"
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#include <fuzzer/FuzzedDataProvider.h>
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// returns a leniency level based on the data we got from libfuzzer
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i18n::phonenumbers::PhoneNumberMatcher::Leniency ConsumeLeniency(
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FuzzedDataProvider& fuzzed_data) {
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switch (fuzzed_data.ConsumeIntegralInRange(0, 3)) {
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case 0:
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return i18n::phonenumbers::PhoneNumberMatcher::Leniency::POSSIBLE;
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case 1:
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return i18n::phonenumbers::PhoneNumberMatcher::Leniency::VALID;
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case 2:
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return i18n::phonenumbers::PhoneNumberMatcher::Leniency::STRICT_GROUPING;
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default:
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return i18n::phonenumbers::PhoneNumberMatcher::Leniency::EXACT_GROUPING;
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}
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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// Setup the data provider and util
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FuzzedDataProvider fuzzed_data(data, size);
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i18n::phonenumbers::PhoneNumberUtil* phone_util =
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i18n::phonenumbers::PhoneNumberUtil::GetInstance();
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// this should be enought to get at least 2 matches
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std::string text = fuzzed_data.ConsumeBytesAsString(128);
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// the region is either 2 or 3 characters long
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bool region_is_2_bytes = fuzzed_data.ConsumeBool();
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std::string region = fuzzed_data.ConsumeBytesAsString(region_is_2_bytes ? 2 : 3);
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// setup fuzzed data for matchers
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i18n::phonenumbers::PhoneNumberMatcher::Leniency leniency =
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ConsumeLeniency(fuzzed_data);
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int max_tries = fuzzed_data.ConsumeIntegralInRange(0, 500);
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bool full_match = fuzzed_data.ConsumeBool();
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std::string regexp_string = fuzzed_data.ConsumeRandomLengthString(32);
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// initialize and fuzz the built-in matcher
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i18n::phonenumbers::PhoneNumberMatcher matcher(*phone_util, text, region,
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leniency, max_tries);
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while (matcher.HasNext()) {
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i18n::phonenumbers::PhoneNumberMatch match;
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matcher.Next(&match);
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}
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// fuzz the matching with the icu adapter
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std::string matched_string;
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i18n::phonenumbers::ICURegExpFactory factory;
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std::unique_ptr<i18n::phonenumbers::RegExp> regexp(
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factory.CreateRegExp(regexp_string));
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regexp->Match(text, full_match, &matched_string);
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return 0;
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}
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