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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/p2p/socket_host_tcp.h"
#include <deque>
#include "base/sys_byteorder.h"
#include "content/browser/renderer_host/p2p/socket_host_test_utils.h"
#include "net/socket/stream_socket.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::_;
using ::testing::DeleteArg;
using ::testing::DoAll;
using ::testing::Return;
namespace content {
class P2PSocketHostTcpTest : public testing::Test {
protected:
virtual void SetUp() OVERRIDE {
EXPECT_CALL(sender_, Send(
MatchMessage(static_cast<uint32>(P2PMsg_OnSocketCreated::ID))))
.WillOnce(DoAll(DeleteArg<0>(), Return(true)));
socket_host_.reset(new P2PSocketHostTcp(&sender_, 0, 0));
socket_ = new FakeSocket(&sent_data_);
socket_->SetLocalAddress(ParseAddress(kTestLocalIpAddress, kTestPort1));
socket_host_->socket_.reset(socket_);
dest_ = ParseAddress(kTestIpAddress1, kTestPort1);
local_address_ = ParseAddress(kTestLocalIpAddress, kTestPort1);
socket_host_->remote_address_ = dest_;
socket_host_->state_ = P2PSocketHost::STATE_CONNECTING;
socket_host_->OnConnected(net::OK);
}
std::string IntToSize(int size) {
std::string result;
uint16 size16 = base::HostToNet16(size);
result.resize(sizeof(size16));
memcpy(&result[0], &size16, sizeof(size16));
return result;
}
std::string sent_data_;
FakeSocket* socket_; // Owned by |socket_host_|.
scoped_ptr<P2PSocketHostTcp> socket_host_;
MockIPCSender sender_;
net::IPEndPoint local_address_;
net::IPEndPoint dest_;
net::IPEndPoint dest2_;
};
// Verify that we can send STUN message and that they are formatted
// properly.
TEST_F(P2PSocketHostTcpTest, SendStunNoAuth) {
std::vector<char> packet1;
CreateStunRequest(&packet1);
socket_host_->Send(dest_, packet1);
std::vector<char> packet2;
CreateStunResponse(&packet2);
socket_host_->Send(dest_, packet2);
std::vector<char> packet3;
CreateStunError(&packet3);
socket_host_->Send(dest_, packet3);
std::string expected_data;
expected_data.append(IntToSize(packet1.size()));
expected_data.append(packet1.begin(), packet1.end());
expected_data.append(IntToSize(packet2.size()));
expected_data.append(packet2.begin(), packet2.end());
expected_data.append(IntToSize(packet3.size()));
expected_data.append(packet3.begin(), packet3.end());
EXPECT_EQ(expected_data, sent_data_);
}
// Verify that we can receive STUN messages from the socket, and that
// the messages are parsed properly.
TEST_F(P2PSocketHostTcpTest, ReceiveStun) {
std::vector<char> packet1;
CreateStunRequest(&packet1);
socket_host_->Send(dest_, packet1);
std::vector<char> packet2;
CreateStunResponse(&packet2);
socket_host_->Send(dest_, packet2);
std::vector<char> packet3;
CreateStunError(&packet3);
socket_host_->Send(dest_, packet3);
std::string received_data;
received_data.append(IntToSize(packet1.size()));
received_data.append(packet1.begin(), packet1.end());
received_data.append(IntToSize(packet2.size()));
received_data.append(packet2.begin(), packet2.end());
received_data.append(IntToSize(packet3.size()));
received_data.append(packet3.begin(), packet3.end());
EXPECT_CALL(sender_, Send(MatchPacketMessage(packet1)))
.WillOnce(DoAll(DeleteArg<0>(), Return(true)));
EXPECT_CALL(sender_, Send(MatchPacketMessage(packet2)))
.WillOnce(DoAll(DeleteArg<0>(), Return(true)));
EXPECT_CALL(sender_, Send(MatchPacketMessage(packet3)))
.WillOnce(DoAll(DeleteArg<0>(), Return(true)));
size_t pos = 0;
size_t step_sizes[] = {3, 2, 1};
size_t step = 0;
while (pos < received_data.size()) {
size_t step_size = std::min(step_sizes[step], received_data.size() - pos);
socket_->AppendInputData(&received_data[pos], step_size);
pos += step_size;
if (++step >= arraysize(step_sizes))
step = 0;
}
}
// Verify that we can't send data before we've received STUN response
// from the other side.
TEST_F(P2PSocketHostTcpTest, SendDataNoAuth) {
EXPECT_CALL(sender_, Send(
MatchMessage(static_cast<uint32>(P2PMsg_OnError::ID))))
.WillOnce(DoAll(DeleteArg<0>(), Return(true)));
std::vector<char> packet;
CreateRandomPacket(&packet);
socket_host_->Send(dest_, packet);
EXPECT_EQ(0U, sent_data_.size());
}
// Verify that we can send data after we've received STUN response
// from the other side.
TEST_F(P2PSocketHostTcpTest, SendAfterStunRequest) {
// Receive packet from |dest_|.
std::vector<char> request_packet;
CreateStunRequest(&request_packet);
std::string received_data;
received_data.append(IntToSize(request_packet.size()));
received_data.append(request_packet.begin(), request_packet.end());
EXPECT_CALL(sender_, Send(MatchPacketMessage(request_packet)))
.WillOnce(DoAll(DeleteArg<0>(), Return(true)));
socket_->AppendInputData(&received_data[0], received_data.size());
// Now we should be able to send any data to |dest_|.
std::vector<char> packet;
CreateRandomPacket(&packet);
socket_host_->Send(dest_, packet);
std::string expected_data;
expected_data.append(IntToSize(packet.size()));
expected_data.append(packet.begin(), packet.end());
EXPECT_EQ(expected_data, sent_data_);
}
} // namespace content
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