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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/dns/https_record_rdata.h"
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "base/strings/string_piece.h"
#include "net/base/ip_address.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net {
namespace {
TEST(HttpsRecordRdataTest, ParsesAlias) {
const char kRdata[] =
// Priority: 0 for alias record
"\000\000"
// Alias name: chromium.org
"\010chromium\003org\000";
std::unique_ptr<HttpsRecordRdata> rdata =
HttpsRecordRdata::Parse(base::StringPiece(kRdata, sizeof(kRdata) - 1));
ASSERT_TRUE(rdata);
AliasFormHttpsRecordRdata expected("chromium.org");
EXPECT_TRUE(rdata->IsEqual(&expected));
EXPECT_TRUE(rdata->IsAlias());
AliasFormHttpsRecordRdata* alias_rdata = rdata->AsAliasForm();
ASSERT_TRUE(alias_rdata);
EXPECT_EQ(alias_rdata->alias_name(), "chromium.org");
}
TEST(HttpsRecordRdataTest, ParseAliasWithEmptyName) {
const char kRdata[] =
// Priority: 0 for alias record
"\000\000"
// Alias name: ""
"\000";
std::unique_ptr<HttpsRecordRdata> rdata =
HttpsRecordRdata::Parse(base::StringPiece(kRdata, sizeof(kRdata) - 1));
ASSERT_TRUE(rdata);
AliasFormHttpsRecordRdata expected("");
EXPECT_TRUE(rdata->IsEqual(&expected));
EXPECT_TRUE(rdata->IsAlias());
AliasFormHttpsRecordRdata* alias_rdata = rdata->AsAliasForm();
ASSERT_TRUE(alias_rdata);
EXPECT_TRUE(alias_rdata->alias_name().empty());
}
TEST(HttpsRecordRdataTest, IgnoreAliasParams) {
const char kRdata[] =
// Priority: 0 for alias record
"\000\000"
// Alias name: chromium.org
"\010chromium\003org\000"
// no-default-alpn
"\000\002\000\000";
std::unique_ptr<HttpsRecordRdata> rdata =
HttpsRecordRdata::Parse(base::StringPiece(kRdata, sizeof(kRdata) - 1));
ASSERT_TRUE(rdata);
AliasFormHttpsRecordRdata expected("chromium.org");
EXPECT_TRUE(rdata->IsEqual(&expected));
EXPECT_TRUE(rdata->IsAlias());
AliasFormHttpsRecordRdata* alias_rdata = rdata->AsAliasForm();
ASSERT_TRUE(alias_rdata);
EXPECT_EQ(alias_rdata->alias_name(), "chromium.org");
}
TEST(HttpsRecordRdataTest, ParsesService) {
const char kRdata[] =
// Priority: 1
"\000\001"
// Service name: chromium.org
"\010chromium\003org\000"
// mandatory=alpn,no-default-alpn,port,ipv4hint,echconfig,ipv6hint
"\000\000\000\014\000\001\000\002\000\003\000\004\000\005\000\006"
// alpn=foo,bar
"\000\001\000\010\003foo\003bar"
// no-default-alpn
"\000\002\000\000"
// port=46
"\000\003\000\002\000\056"
// ipv4hint=8.8.8.8
"\000\004\000\004\010\010\010\010"
// echconfig=hello
"\000\005\000\005hello"
// ipv6hint=2001:4860:4860::8888
"\000\006\000\020\x20\x01\x48\x60\x48\x60\x00\x00\x00\x00\x00\x00\x00\x00"
"\x88\x88"
// Unknown key7=foo
"\000\007\000\003foo";
std::unique_ptr<HttpsRecordRdata> rdata =
HttpsRecordRdata::Parse(base::StringPiece(kRdata, sizeof(kRdata) - 1));
ASSERT_TRUE(rdata);
IPAddress expected_ipv6;
ASSERT_TRUE(expected_ipv6.AssignFromIPLiteral("2001:4860:4860::8888"));
ServiceFormHttpsRecordRdata expected(
1 /* priority */, "chromium.org", std::set<uint16_t>({1, 2, 3, 4, 5, 6}),
std::vector<std::string>({"foo", "bar"}) /* alpn_ids */,
false /* default_alpn */, absl::optional<uint16_t>(46) /* port */,
std::vector<IPAddress>({IPAddress(8, 8, 8, 8)}) /* ipv4_hint */,
"hello" /* ech_config */,
std::vector<IPAddress>({expected_ipv6}) /* ipv6_hint */,
std::map<uint16_t, std::string>({{7, "foo"}}) /* unparsed_params */);
EXPECT_TRUE(rdata->IsEqual(&expected));
EXPECT_FALSE(rdata->IsAlias());
ServiceFormHttpsRecordRdata* service_rdata = rdata->AsServiceForm();
ASSERT_TRUE(service_rdata);
EXPECT_EQ(service_rdata->priority(), 1);
EXPECT_EQ(service_rdata->service_name(), "chromium.org");
EXPECT_THAT(service_rdata->mandatory_keys(),
testing::ElementsAre(1, 2, 3, 4, 5, 6));
EXPECT_THAT(service_rdata->alpn_ids(), testing::ElementsAre("foo", "bar"));
EXPECT_FALSE(service_rdata->default_alpn());
EXPECT_THAT(service_rdata->port(), testing::Optional(46));
EXPECT_THAT(service_rdata->ipv4_hint(),
testing::ElementsAre(IPAddress(8, 8, 8, 8)));
EXPECT_EQ(service_rdata->ech_config(), "hello");
EXPECT_THAT(service_rdata->ipv6_hint(), testing::ElementsAre(expected_ipv6));
EXPECT_THAT(service_rdata->unparsed_params(),
testing::ElementsAre(testing::Pair(7, "foo")));
EXPECT_TRUE(service_rdata->IsCompatible());
}
TEST(HttpsRecordRdataTest, RejectCorruptRdata) {
const char kRdata[] =
// Priority: 5
"\000\005"
// Service name: chromium.org
"\010chromium\003org\000"
// Malformed alpn
"\000\001\000\005hi";
std::unique_ptr<HttpsRecordRdata> rdata =
HttpsRecordRdata::Parse(base::StringPiece(kRdata, sizeof(kRdata) - 1));
EXPECT_FALSE(rdata);
}
TEST(HttpsRecordRdataTest, AliasIsEqualRejectsWrongType) {
AliasFormHttpsRecordRdata alias("alias.name.test");
ServiceFormHttpsRecordRdata service(
1u /* priority */, "service.name.test", {} /* mandatory_keys */,
{} /* alpn_ids */, true /* default_alpn */, absl::nullopt /* port */,
{} /* ipv4_hint */, "" /* ech_config */, {} /* ipv6_hint */,
{} /* unparsed_params */);
EXPECT_TRUE(alias.IsEqual(&alias));
EXPECT_FALSE(alias.IsEqual(&service));
}
TEST(HttpsRecordRdataTest, ServiceIsEqualRejectsWrongType) {
AliasFormHttpsRecordRdata alias("alias.name.test");
ServiceFormHttpsRecordRdata service(
1u /* priority */, "service.name.test", {} /* mandatory_keys */,
{} /* alpn_ids */, true /* default_alpn */, absl::nullopt /* port */,
{} /* ipv4_hint */, "" /* ech_config */, {} /* ipv6_hint */,
{} /* unparsed_params */);
EXPECT_FALSE(service.IsEqual(&alias));
EXPECT_TRUE(service.IsEqual(&service));
}
} // namespace
} // namespace net
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