remoting/host/gnubby_auth_handler_posix_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   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 "base/files/file_path.h"
   6 #include "base/files/scoped_temp_dir.h"
   7 #include "base/json/json_writer.h"
   8 #include "base/macros.h"
   9 #include "base/message_loop/message_loop.h"
  10 #include "base/run_loop.h"
  11 #include "base/strings/stringprintf.h"
  12 #include "base/timer/mock_timer.h"
  13 #include "base/values.h"
  14 #include "net/base/io_buffer.h"
  15 #include "net/base/net_errors.h"
  16 #include "net/base/test_completion_callback.h"
  17 #include "net/socket/unix_domain_client_socket_posix.h"
  18 #include "remoting/host/gnubby_auth_handler_posix.h"
  19 #include "remoting/host/gnubby_socket.h"
  20 #include "remoting/proto/internal.pb.h"
  21 #include "remoting/protocol/client_stub.h"
  22 #include "testing/gtest/include/gtest/gtest.h"
  23
  24 namespace remoting {
  25
  26 namespace {
  27
  28 const char kSocketFilename[] = "socket_for_testing";
  29
  30 // Test gnubby request data.
  31 const unsigned char kRequestData[] = {
  32     0x00, 0x00, 0x00, 0x9a, 0x65, 0x1e, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
  33     0x00, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x60, 0x90,
  34     0x24, 0x71, 0xf8, 0xf2, 0xe5, 0xdf, 0x7f, 0x81, 0xc7, 0x49, 0xc4, 0xa3,
  35     0x58, 0x5c, 0xf6, 0xcc, 0x40, 0x14, 0x28, 0x0c, 0xa0, 0xfa, 0x03, 0x18,
  36     0x38, 0xd8, 0x7d, 0x77, 0x2b, 0x3a, 0x00, 0x00, 0x00, 0x20, 0x64, 0x46,
  37     0x47, 0x2f, 0xdf, 0x6e, 0xed, 0x7b, 0xf3, 0xc3, 0x37, 0x20, 0xf2, 0x36,
  38     0x67, 0x6c, 0x36, 0xe1, 0xb4, 0x5e, 0xbe, 0x04, 0x85, 0xdb, 0x89, 0xa3,
  39     0xcd, 0xfd, 0xd2, 0x4b, 0xd6, 0x9f, 0x00, 0x00, 0x00, 0x40, 0x38, 0x35,
  40     0x05, 0x75, 0x1d, 0x13, 0x6e, 0xb3, 0x6b, 0x1d, 0x29, 0xae, 0xd3, 0x43,
  41     0xe6, 0x84, 0x8f, 0xa3, 0x9d, 0x65, 0x4e, 0x2f, 0x57, 0xe3, 0xf6, 0xe6,
  42     0x20, 0x3c, 0x00, 0xc6, 0xe1, 0x73, 0x34, 0xe2, 0x23, 0x99, 0xc4, 0xfa,
  43     0x91, 0xc2, 0xd5, 0x97, 0xc1, 0x8b, 0xd0, 0x3c, 0x13, 0xba, 0xf0, 0xd7,
  44     0x5e, 0xa3, 0xbc, 0x02, 0x5b, 0xec, 0xe4, 0x4b, 0xae, 0x0e, 0xf2, 0xbd,
  45     0xc8, 0xaa};
  46
  47 }  // namespace
  48
  49 class TestClientStub : public protocol::ClientStub {
  50  public:
  51   TestClientStub() : loop_(new base::RunLoop) {}
  52   ~TestClientStub() override {}
  53
  54   // protocol::ClientStub implementation.
  55   void SetCapabilities(const protocol::Capabilities& capabilities) override {}
  56
  57   void SetPairingResponse(
  58       const protocol::PairingResponse& pairing_response) override {}
  59
  60   void DeliverHostMessage(const protocol::ExtensionMessage& message) override {
  61     message_ = message;
  62     loop_->Quit();
  63   }
  64
  65   // protocol::ClipboardStub implementation.
  66   void InjectClipboardEvent(const protocol::ClipboardEvent& event) override {}
  67
  68   // protocol::CursorShapeStub implementation.
  69   void SetCursorShape(const protocol::CursorShapeInfo& cursor_shape) override {}
  70
  71   void WaitForDeliverHostMessage() {
  72     loop_->Run();
  73     loop_.reset(new base::RunLoop);
  74   }
  75
  76   void CheckHostDataMessage(int id, const std::string& data) {
  77     std::string connection_id = base::StringPrintf("\"connectionId\":%d", id);
  78     std::string data_message = base::StringPrintf("\"data\":%s", data.c_str());
  79
  80     ASSERT_TRUE(message_.type() == "gnubby-auth" ||
  81                 message_.type() == "auth-v1");
  82     ASSERT_NE(message_.data().find("\"type\":\"data\""), std::string::npos);
  83     ASSERT_NE(message_.data().find(connection_id), std::string::npos);
  84     ASSERT_NE(message_.data().find(data_message), std::string::npos);
  85   }
  86
  87  private:
  88   protocol::ExtensionMessage message_;
  89   scoped_ptr<base::RunLoop> loop_;
  90
  91   DISALLOW_COPY_AND_ASSIGN(TestClientStub);
  92 };
  93
  94 class GnubbyAuthHandlerPosixTest : public testing::Test {
  95  public:
  96   GnubbyAuthHandlerPosixTest() {
  97     EXPECT_TRUE(temp_dir_.CreateUniqueTempDir());
  98     socket_path_ = temp_dir_.path().Append(kSocketFilename);
  99     auth_handler_posix_.reset(new GnubbyAuthHandlerPosix(&client_stub_));
 100     auth_handler_ = auth_handler_posix_.get();
 101     auth_handler_->SetGnubbySocketName(socket_path_);
 102   }
 103
 104   void WriteRequestData(net::UnixDomainClientSocket* client_socket) {
 105     int request_len = sizeof(kRequestData);
 106     scoped_refptr<net::DrainableIOBuffer> request_buffer(
 107         new net::DrainableIOBuffer(
 108             new net::WrappedIOBuffer(
 109                 reinterpret_cast<const char*>(kRequestData)),
 110             request_len));
 111     net::TestCompletionCallback write_callback;
 112     int bytes_written = 0;
 113     while (bytes_written < request_len) {
 114       int write_result = client_socket->Write(request_buffer.get(),
 115                                               request_buffer->BytesRemaining(),
 116                                               write_callback.callback());
 117       write_result = write_callback.GetResult(write_result);
 118       ASSERT_GT(write_result, 0);
 119       bytes_written += write_result;
 120       ASSERT_LE(bytes_written, request_len);
 121       request_buffer->DidConsume(write_result);
 122     }
 123     ASSERT_EQ(request_len, bytes_written);
 124   }
 125
 126   void WaitForAndVerifyHostMessage() {
 127     client_stub_.WaitForDeliverHostMessage();
 128     base::ListValue expected_data;
 129     // Skip first four bytes.
 130     for (size_t i = 4; i < sizeof(kRequestData); ++i) {
 131       expected_data.AppendInteger(kRequestData[i]);
 132     }
 133
 134     std::string expected_data_json;
 135     base::JSONWriter::Write(expected_data, &expected_data_json);
 136     client_stub_.CheckHostDataMessage(1, expected_data_json);
 137   }
 138
 139  protected:
 140   // Object under test.
 141   scoped_ptr<GnubbyAuthHandlerPosix> auth_handler_posix_;
 142
 143   // GnubbyAuthHandler interface for |auth_handler_posix_|.
 144   GnubbyAuthHandler* auth_handler_;
 145
 146   base::MessageLoopForIO message_loop_;
 147   TestClientStub client_stub_;
 148   base::ScopedTempDir temp_dir_;
 149   base::FilePath socket_path_;
 150   base::Closure accept_callback_;
 151 };
 152
 153 TEST_F(GnubbyAuthHandlerPosixTest, HostDataMessageDelivered) {
 154   auth_handler_->DeliverHostDataMessage(42, "test_msg");
 155   client_stub_.WaitForDeliverHostMessage();
 156   // Expects a JSON array of the ASCII character codes for "test_msg".
 157   client_stub_.CheckHostDataMessage(42, "[116,101,115,116,95,109,115,103]");
 158 }
 159
 160 TEST_F(GnubbyAuthHandlerPosixTest, NotClosedAfterRequest) {
 161   ASSERT_EQ(0u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 162
 163   const char message_json[] = "{\"type\":\"control\",\"option\":\"auth-v1\"}";
 164   auth_handler_->DeliverClientMessage(message_json);
 165
 166   net::UnixDomainClientSocket client_socket(socket_path_.value(), false);
 167   net::TestCompletionCallback connect_callback;
 168
 169   int rv = client_socket.Connect(connect_callback.callback());
 170   ASSERT_EQ(net::OK, connect_callback.GetResult(rv));
 171
 172   // Write the request and verify the response.
 173   WriteRequestData(&client_socket);
 174   WaitForAndVerifyHostMessage();
 175
 176   // Verify that completing a request/response cycle didn't close the socket.
 177   ASSERT_EQ(1u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 178 }
 179
 180 TEST_F(GnubbyAuthHandlerPosixTest, HandleTwoRequests) {
 181   ASSERT_EQ(0u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 182
 183   const char message_json[] = "{\"type\":\"control\",\"option\":\"auth-v1\"}";
 184   auth_handler_->DeliverClientMessage(message_json);
 185
 186   net::UnixDomainClientSocket client_socket(socket_path_.value(), false);
 187   net::TestCompletionCallback connect_callback;
 188
 189   int rv = client_socket.Connect(connect_callback.callback());
 190   ASSERT_EQ(net::OK, connect_callback.GetResult(rv));
 191
 192   // Write the request and verify the response.
 193   WriteRequestData(&client_socket);
 194   WaitForAndVerifyHostMessage();
 195
 196   // Repeat the request/response cycle.
 197   WriteRequestData(&client_socket);
 198   WaitForAndVerifyHostMessage();
 199
 200   // Verify that completing two request/response cycles didn't close the socket.
 201   ASSERT_EQ(1u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 202 }
 203
 204 TEST_F(GnubbyAuthHandlerPosixTest, DidReadTimeout) {
 205   std::string message_json = "{\"type\":\"control\",\"option\":\"auth-v1\"}";
 206
 207   ASSERT_EQ(0u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 208   auth_handler_->DeliverClientMessage(message_json);
 209   net::UnixDomainClientSocket client_socket(socket_path_.value(), false);
 210   net::TestCompletionCallback connect_callback;
 211   int rv = client_socket.Connect(connect_callback.callback());
 212   ASSERT_EQ(net::OK, connect_callback.GetResult(rv));
 213   auth_handler_posix_->SetRequestTimeoutForTest(base::TimeDelta());
 214   ASSERT_EQ(0u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 215 }
 216
 217 TEST_F(GnubbyAuthHandlerPosixTest, ClientErrorMessageDelivered) {
 218   std::string message_json = "{\"type\":\"control\",\"option\":\"auth-v1\"}";
 219
 220   ASSERT_EQ(0u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 221   auth_handler_->DeliverClientMessage(message_json);
 222   net::UnixDomainClientSocket client_socket(socket_path_.value(), false);
 223   net::TestCompletionCallback connect_callback;
 224   int rv = client_socket.Connect(connect_callback.callback());
 225   ASSERT_EQ(net::OK, connect_callback.GetResult(rv));
 226
 227   std::string error_json = "{\"type\":\"error\",\"connectionId\":1}";
 228   auth_handler_->DeliverClientMessage(error_json);
 229   ASSERT_EQ(0u, auth_handler_posix_->GetActiveSocketsMapSizeForTest());
 230 }
 231
 232 }  // namespace remoting