1 // Copyright 2021 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "net/base/schemeful_site.h" 6 7 #include <stdlib.h> 8 9 #include <iostream> 10 #include <optional> 11 #include <string> 12 13 #include "testing/libfuzzer/proto/lpm_interface.h" 14 #include "testing/libfuzzer/proto/url.pb.h" 15 #include "testing/libfuzzer/proto/url_proto_converter.h" 16 #include "url/gurl.h" 17 #include "url/origin.h" 18 DEFINE_PROTO_FUZZER(const url_proto::Url & url_message)19DEFINE_PROTO_FUZZER(const url_proto::Url& url_message) { 20 std::string native_input = url_proto::Convert(url_message); 21 22 if (getenv("LPM_DUMP_NATIVE_INPUT")) 23 std::cout << native_input << std::endl; 24 25 url::Origin origin = url::Origin::Create((GURL(native_input))); 26 27 // We don't run the fuzzer on inputs whose hosts will contain "..". The ".." 28 // causes SchemefulSite to consider the registrable domain to start with the 29 // second ".". 30 if (origin.host().find("..") != std::string::npos) 31 return; 32 33 net::SchemefulSite site(origin); 34 35 std::optional<net::SchemefulSite> site_with_registrable_domain = 36 net::SchemefulSite::CreateIfHasRegisterableDomain(origin); 37 38 if (site_with_registrable_domain) { 39 CHECK_EQ(site_with_registrable_domain->GetInternalOriginForTesting(), 40 site.GetInternalOriginForTesting()); 41 CHECK(site.has_registrable_domain_or_host()); 42 const std::string& scheme = site.GetInternalOriginForTesting().scheme(); 43 if (scheme == "http" || scheme == "https") { 44 CHECK_NE(site.registrable_domain_or_host_for_testing().front(), '.'); 45 } 46 } 47 } 48