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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 "net/socket/tcp_server_socket.h"
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "net/base/address_list.h"
#include "net/base/io_buffer.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/base/test_completion_callback.h"
#include "net/socket/tcp_client_socket.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
namespace net {
namespace {
const int kListenBacklog = 5;
class TCPServerSocketTest : public PlatformTest {
protected:
TCPServerSocketTest()
: socket_(NULL, NetLog::Source()) {
}
void SetUpIPv4() {
IPEndPoint address;
ParseAddress("127.0.0.1", 0, &address);
ASSERT_EQ(OK, socket_.Listen(address, kListenBacklog));
ASSERT_EQ(OK, socket_.GetLocalAddress(&local_address_));
}
void SetUpIPv6(bool* success) {
*success = false;
IPEndPoint address;
ParseAddress("::1", 0, &address);
if (socket_.Listen(address, kListenBacklog) != 0) {
LOG(ERROR) << "Failed to listen on ::1 - probably because IPv6 is "
"disabled. Skipping the test";
return;
}
ASSERT_EQ(OK, socket_.GetLocalAddress(&local_address_));
*success = true;
}
void ParseAddress(std::string ip_str, uint16 port, IPEndPoint* address) {
IPAddressNumber ip_number;
bool rv = ParseIPLiteralToNumber(ip_str, &ip_number);
if (!rv)
return;
*address = IPEndPoint(ip_number, port);
}
static IPEndPoint GetPeerAddress(StreamSocket* socket) {
IPEndPoint address;
EXPECT_EQ(OK, socket->GetPeerAddress(&address));
return address;
}
AddressList local_address_list() const {
return AddressList(local_address_);
}
TCPServerSocket socket_;
IPEndPoint local_address_;
};
TEST_F(TCPServerSocketTest, Accept) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(),
NULL, NetLog::Source());
connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback accept_callback;
scoped_ptr<StreamSocket> accepted_socket;
int result = socket_.Accept(&accepted_socket, accept_callback.callback());
if (result == ERR_IO_PENDING)
result = accept_callback.WaitForResult();
ASSERT_EQ(OK, result);
ASSERT_TRUE(accepted_socket.get() != NULL);
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_EQ(OK, connect_callback.WaitForResult());
}
// Test Accept() callback.
TEST_F(TCPServerSocketTest, AcceptAsync) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback accept_callback;
scoped_ptr<StreamSocket> accepted_socket;
ASSERT_EQ(ERR_IO_PENDING,
socket_.Accept(&accepted_socket, accept_callback.callback()));
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(),
NULL, NetLog::Source());
connecting_socket.Connect(connect_callback.callback());
EXPECT_EQ(OK, connect_callback.WaitForResult());
EXPECT_EQ(OK, accept_callback.WaitForResult());
EXPECT_TRUE(accepted_socket != NULL);
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
}
// Accept two connections simultaneously.
TEST_F(TCPServerSocketTest, Accept2Connections) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback accept_callback;
scoped_ptr<StreamSocket> accepted_socket;
ASSERT_EQ(ERR_IO_PENDING,
socket_.Accept(&accepted_socket, accept_callback.callback()));
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(),
NULL, NetLog::Source());
connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback connect_callback2;
TCPClientSocket connecting_socket2(local_address_list(),
NULL, NetLog::Source());
connecting_socket2.Connect(connect_callback2.callback());
EXPECT_EQ(OK, accept_callback.WaitForResult());
TestCompletionCallback accept_callback2;
scoped_ptr<StreamSocket> accepted_socket2;
int result = socket_.Accept(&accepted_socket2, accept_callback2.callback());
if (result == ERR_IO_PENDING)
result = accept_callback2.WaitForResult();
ASSERT_EQ(OK, result);
EXPECT_EQ(OK, connect_callback.WaitForResult());
EXPECT_TRUE(accepted_socket != NULL);
EXPECT_TRUE(accepted_socket2 != NULL);
EXPECT_NE(accepted_socket.get(), accepted_socket2.get());
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_EQ(GetPeerAddress(accepted_socket2.get()).address(),
local_address_.address());
}
TEST_F(TCPServerSocketTest, AcceptIPv6) {
bool initialized = false;
ASSERT_NO_FATAL_FAILURE(SetUpIPv6(&initialized));
if (!initialized)
return;
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(),
NULL, NetLog::Source());
connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback accept_callback;
scoped_ptr<StreamSocket> accepted_socket;
int result = socket_.Accept(&accepted_socket, accept_callback.callback());
if (result == ERR_IO_PENDING)
result = accept_callback.WaitForResult();
ASSERT_EQ(OK, result);
ASSERT_TRUE(accepted_socket.get() != NULL);
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_EQ(OK, connect_callback.WaitForResult());
}
TEST_F(TCPServerSocketTest, AcceptIO) {
ASSERT_NO_FATAL_FAILURE(SetUpIPv4());
TestCompletionCallback connect_callback;
TCPClientSocket connecting_socket(local_address_list(),
NULL, NetLog::Source());
connecting_socket.Connect(connect_callback.callback());
TestCompletionCallback accept_callback;
scoped_ptr<StreamSocket> accepted_socket;
int result = socket_.Accept(&accepted_socket, accept_callback.callback());
ASSERT_EQ(OK, accept_callback.GetResult(result));
ASSERT_TRUE(accepted_socket.get() != NULL);
// Both sockets should be on the loopback network interface.
EXPECT_EQ(GetPeerAddress(accepted_socket.get()).address(),
local_address_.address());
EXPECT_EQ(OK, connect_callback.WaitForResult());
const std::string message("test message");
std::vector<char> buffer(message.size());
size_t bytes_written = 0;
while (bytes_written < message.size()) {
scoped_refptr<IOBufferWithSize> write_buffer(
new IOBufferWithSize(message.size() - bytes_written));
memmove(write_buffer->data(), message.data(), message.size());
TestCompletionCallback write_callback;
int write_result = accepted_socket->Write(
write_buffer.get(), write_buffer->size(), write_callback.callback());
write_result = write_callback.GetResult(write_result);
ASSERT_TRUE(write_result >= 0);
ASSERT_TRUE(bytes_written + write_result <= message.size());
bytes_written += write_result;
}
size_t bytes_read = 0;
while (bytes_read < message.size()) {
scoped_refptr<IOBufferWithSize> read_buffer(
new IOBufferWithSize(message.size() - bytes_read));
TestCompletionCallback read_callback;
int read_result = connecting_socket.Read(
read_buffer.get(), read_buffer->size(), read_callback.callback());
read_result = read_callback.GetResult(read_result);
ASSERT_TRUE(read_result >= 0);
ASSERT_TRUE(bytes_read + read_result <= message.size());
memmove(&buffer[bytes_read], read_buffer->data(), read_result);
bytes_read += read_result;
}
std::string received_message(buffer.begin(), buffer.end());
ASSERT_EQ(message, received_message);
}
} // namespace
} // namespace net
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