1 //
2 //
3 // Copyright 2015 gRPC authors.
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17 //
18
19 #include <memory>
20 #include <string>
21 #include <utility>
22
23 #include "absl/log/log.h"
24 #include "absl/status/status.h"
25 #include "absl/status/statusor.h"
26 #include "gtest/gtest.h"
27 #include "src/core/config/core_configuration.h"
28 #include "src/core/lib/event_engine/default_event_engine.h"
29 #include "src/core/lib/iomgr/exec_ctx.h"
30 #include "src/core/lib/iomgr/port.h"
31 #include "src/core/resolver/resolver.h"
32 #include "src/core/resolver/resolver_factory.h"
33 #include "src/core/resolver/resolver_registry.h"
34 #include "src/core/util/orphanable.h"
35 #include "src/core/util/uri.h"
36 #include "src/core/util/work_serializer.h"
37 #include "test/core/test_util/test_config.h"
38
39 static std::shared_ptr<grpc_core::WorkSerializer>* g_work_serializer;
40
41 class ResultHandler : public grpc_core::Resolver::ResultHandler {
42 public:
ReportResult(grpc_core::Resolver::Result)43 void ReportResult(grpc_core::Resolver::Result /*result*/) override {}
44 };
45
test_succeeds(grpc_core::ResolverFactory * factory,const char * string)46 static void test_succeeds(grpc_core::ResolverFactory* factory,
47 const char* string) {
48 VLOG(2) << "test: '" << string << "' should be valid for '"
49 << factory->scheme() << "'";
50 grpc_core::ExecCtx exec_ctx;
51 absl::StatusOr<grpc_core::URI> uri = grpc_core::URI::Parse(string);
52 if (!uri.ok()) {
53 LOG(ERROR) << uri.status().ToString();
54 ASSERT_TRUE(uri.ok());
55 }
56 grpc_core::ResolverArgs args;
57 args.uri = std::move(*uri);
58 args.work_serializer = *g_work_serializer;
59 args.result_handler = std::make_unique<ResultHandler>();
60 grpc_core::OrphanablePtr<grpc_core::Resolver> resolver =
61 factory->CreateResolver(std::move(args));
62 ASSERT_NE(resolver, nullptr);
63 resolver->StartLocked();
64 // Flush ExecCtx to avoid stack-use-after-scope on on_res_arg which is
65 // accessed in the closure on_resolution_cb
66 grpc_core::ExecCtx::Get()->Flush();
67 }
68
test_fails(grpc_core::ResolverFactory * factory,const char * string)69 static void test_fails(grpc_core::ResolverFactory* factory,
70 const char* string) {
71 VLOG(2) << "test: '" << string << "' should be invalid for '"
72 << factory->scheme() << "'";
73 grpc_core::ExecCtx exec_ctx;
74 absl::StatusOr<grpc_core::URI> uri = grpc_core::URI::Parse(string);
75 if (!uri.ok()) {
76 LOG(ERROR) << uri.status().ToString();
77 ASSERT_TRUE(uri.ok());
78 }
79 grpc_core::ResolverArgs args;
80 args.uri = std::move(*uri);
81 args.work_serializer = *g_work_serializer;
82 args.result_handler = std::make_unique<ResultHandler>();
83 grpc_core::OrphanablePtr<grpc_core::Resolver> resolver =
84 factory->CreateResolver(std::move(args));
85 ASSERT_EQ(resolver, nullptr);
86 }
87
TEST(SockaddrResolverTest,MainTest)88 TEST(SockaddrResolverTest, MainTest) {
89 auto work_serializer = std::make_shared<grpc_core::WorkSerializer>(
90 grpc_event_engine::experimental::GetDefaultEventEngine());
91 g_work_serializer = &work_serializer;
92
93 grpc_core::ResolverFactory* ipv4 = grpc_core::CoreConfiguration::Get()
94 .resolver_registry()
95 .LookupResolverFactory("ipv4");
96 grpc_core::ResolverFactory* ipv6 = grpc_core::CoreConfiguration::Get()
97 .resolver_registry()
98 .LookupResolverFactory("ipv6");
99
100 test_fails(ipv4, "ipv4:10.2.1.1");
101 test_succeeds(ipv4, "ipv4:10.2.1.1:1234");
102 test_succeeds(ipv4, "ipv4:10.2.1.1:1234,127.0.0.1:4321");
103 test_fails(ipv4, "ipv4:10.2.1.1:123456");
104 test_fails(ipv4, "ipv4:www.google.com");
105 test_fails(ipv4, "ipv4:[");
106 test_fails(ipv4, "ipv4://8.8.8.8/8.8.8.8:8888");
107
108 test_fails(ipv6, "ipv6:[");
109 test_fails(ipv6, "ipv6:[::]");
110 test_succeeds(ipv6, "ipv6:[::]:1234");
111 test_fails(ipv6, "ipv6:[::]:123456");
112 test_fails(ipv6, "ipv6:www.google.com");
113
114 #ifdef GRPC_HAVE_UNIX_SOCKET
115 grpc_core::ResolverFactory* uds = grpc_core::CoreConfiguration::Get()
116 .resolver_registry()
117 .LookupResolverFactory("unix");
118 grpc_core::ResolverFactory* uds_abstract =
119 grpc_core::CoreConfiguration::Get()
120 .resolver_registry()
121 .LookupResolverFactory("unix-abstract");
122
123 test_succeeds(uds, "unix:///tmp/sockaddr_resolver_test");
124 test_succeeds(uds_abstract, "unix-abstract:sockaddr_resolver_test");
125 #endif // GRPC_HAVE_UNIX_SOCKET
126 }
127
main(int argc,char ** argv)128 int main(int argc, char** argv) {
129 grpc::testing::TestEnvironment env(&argc, argv);
130 ::testing::InitGoogleTest(&argc, argv);
131 grpc::testing::TestGrpcScope grpc_scope;
132 return RUN_ALL_TESTS();
133 }
134