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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 "chrome/browser/extensions/api/socket/tcp_socket.h"
#include "chrome/browser/extensions/api/api_resource.h"
#include "chrome/browser/extensions/api/api_resource_event_notifier.h"
#include "net/base/address_list.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/base/rand_callback.h"
#include "net/socket/tcp_client_socket.h"
namespace extensions {
TCPSocket::TCPSocket(APIResourceEventNotifier* event_notifier)
: Socket(event_notifier) {
}
// For testing.
TCPSocket::TCPSocket(net::TCPClientSocket* tcp_client_socket,
APIResourceEventNotifier* event_notifier)
: Socket(event_notifier),
socket_(tcp_client_socket) {
}
// static
TCPSocket* TCPSocket::CreateSocketForTesting(
net::TCPClientSocket* tcp_client_socket,
APIResourceEventNotifier* event_notifier) {
return new TCPSocket(tcp_client_socket, event_notifier);
}
TCPSocket::~TCPSocket() {
if (is_connected_) {
Disconnect();
}
}
void TCPSocket::Connect(const std::string& address,
int port,
const CompletionCallback& callback) {
DCHECK(!callback.is_null());
if (!connect_callback_.is_null()) {
callback.Run(net::ERR_CONNECTION_FAILED);
return;
}
connect_callback_ = callback;
int result = net::ERR_CONNECTION_FAILED;
do {
if (is_connected_)
break;
net::AddressList address_list;
if (!StringAndPortToAddressList(address, port, &address_list)) {
result = net::ERR_ADDRESS_INVALID;
break;
}
socket_.reset(new net::TCPClientSocket(address_list, NULL,
net::NetLog::Source()));
connect_callback_ = callback;
result = socket_->Connect(base::Bind(
&TCPSocket::OnConnectComplete, base::Unretained(this)));
} while (false);
if (result != net::ERR_IO_PENDING)
OnConnectComplete(result);
}
void TCPSocket::Disconnect() {
is_connected_ = false;
socket_->Disconnect();
}
int TCPSocket::Bind(const std::string& address, int port) {
// TODO(penghuang): Supports bind for tcp?
return net::ERR_FAILED;
}
void TCPSocket::Read(int count,
const ReadCompletionCallback& callback) {
DCHECK(!callback.is_null());
if (!read_callback_.is_null()) {
callback.Run(net::ERR_IO_PENDING, NULL);
return;
} else {
read_callback_ = callback;
}
int result = net::ERR_FAILED;
scoped_refptr<net::IOBuffer> io_buffer;
do {
if (count < 0) {
result = net::ERR_INVALID_ARGUMENT;
break;
}
if (!socket_.get() || !socket_->IsConnected()) {
result = net::ERR_SOCKET_NOT_CONNECTED;
break;
}
io_buffer = new net::IOBuffer(count);
result = socket_->Read(io_buffer.get(), count,
base::Bind(&TCPSocket::OnReadComplete, base::Unretained(this),
io_buffer));
} while (false);
if (result != net::ERR_IO_PENDING)
OnReadComplete(io_buffer, result);
}
void TCPSocket::RecvFrom(int count,
const RecvFromCompletionCallback& callback) {
callback.Run(net::ERR_FAILED, NULL, NULL, 0);
}
void TCPSocket::SendTo(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
const std::string& address,
int port,
const CompletionCallback& callback) {
callback.Run(net::ERR_FAILED);
}
bool TCPSocket::SetKeepAlive(bool enable, int delay) {
if (!socket_.get())
return false;
return socket_->SetKeepAlive(enable, delay);
}
bool TCPSocket::SetNoDelay(bool no_delay) {
if (!socket_.get())
return false;
return socket_->SetNoDelay(no_delay);
}
int TCPSocket::WriteImpl(net::IOBuffer* io_buffer,
int io_buffer_size,
const net::CompletionCallback& callback) {
if (!socket_.get() || !socket_->IsConnected())
return net::ERR_SOCKET_NOT_CONNECTED;
else
return socket_->Write(io_buffer, io_buffer_size, callback);
}
void TCPSocket::OnConnectComplete(int result) {
DCHECK(!connect_callback_.is_null());
DCHECK(!is_connected_);
is_connected_ = result == net::OK;
connect_callback_.Run(result);
connect_callback_.Reset();
}
void TCPSocket::OnReadComplete(scoped_refptr<net::IOBuffer> io_buffer,
int result) {
DCHECK(!read_callback_.is_null());
read_callback_.Run(result, io_buffer);
read_callback_.Reset();
}
} // namespace extensions
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