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// Copyright 2014 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 "extensions/browser/api/socket/socket.h"
#include "base/bind.h"
#include "base/lazy_instance.h"
#include "extensions/browser/api/api_resource_manager.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/socket/socket.h"
namespace extensions {
const char kSocketTypeNotSupported[] = "Socket type does not support this API";
static base::LazyInstance<
BrowserContextKeyedAPIFactory<ApiResourceManager<Socket> > > g_factory =
LAZY_INSTANCE_INITIALIZER;
// static
template <>
BrowserContextKeyedAPIFactory<ApiResourceManager<Socket> >*
ApiResourceManager<Socket>::GetFactoryInstance() {
return g_factory.Pointer();
}
Socket::Socket(const std::string& owner_extension_id)
: ApiResource(owner_extension_id), is_connected_(false) {}
Socket::~Socket() {
// Derived destructors should make sure the socket has been closed.
DCHECK(!is_connected_);
}
void Socket::Write(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
const CompletionCallback& callback) {
DCHECK(!callback.is_null());
write_queue_.push(WriteRequest(io_buffer, byte_count, callback));
WriteData();
}
void Socket::WriteData() {
// IO is pending.
if (io_buffer_write_.get())
return;
WriteRequest& request = write_queue_.front();
DCHECK(request.byte_count >= request.bytes_written);
io_buffer_write_ = new net::WrappedIOBuffer(request.io_buffer->data() +
request.bytes_written);
int result =
WriteImpl(io_buffer_write_.get(),
request.byte_count - request.bytes_written,
base::Bind(&Socket::OnWriteComplete, base::Unretained(this)));
if (result != net::ERR_IO_PENDING)
OnWriteComplete(result);
}
void Socket::OnWriteComplete(int result) {
io_buffer_write_ = NULL;
WriteRequest& request = write_queue_.front();
if (result >= 0) {
request.bytes_written += result;
if (request.bytes_written < request.byte_count) {
WriteData();
return;
}
DCHECK(request.bytes_written == request.byte_count);
result = request.bytes_written;
}
request.callback.Run(result);
write_queue_.pop();
if (!write_queue_.empty())
WriteData();
}
bool Socket::SetKeepAlive(bool enable, int delay) { return false; }
bool Socket::SetNoDelay(bool no_delay) { return false; }
int Socket::Listen(const std::string& address,
int port,
int backlog,
std::string* error_msg) {
*error_msg = kSocketTypeNotSupported;
return net::ERR_FAILED;
}
void Socket::Accept(const AcceptCompletionCallback& callback) {
callback.Run(net::ERR_FAILED, NULL);
}
// static
bool Socket::StringAndPortToIPEndPoint(const std::string& ip_address_str,
int port,
net::IPEndPoint* ip_end_point) {
DCHECK(ip_end_point);
net::IPAddressNumber ip_number;
if (!net::ParseIPLiteralToNumber(ip_address_str, &ip_number))
return false;
*ip_end_point = net::IPEndPoint(ip_number, port);
return true;
}
bool Socket::StringAndPortToAddressList(const std::string& ip_address_str,
int port,
net::AddressList* address_list) {
DCHECK(address_list);
net::IPAddressNumber ip_number;
if (!net::ParseIPLiteralToNumber(ip_address_str, &ip_number))
return false;
*address_list = net::AddressList::CreateFromIPAddress(ip_number, port);
return true;
}
void Socket::IPEndPointToStringAndPort(const net::IPEndPoint& address,
std::string* ip_address_str,
int* port) {
DCHECK(ip_address_str);
DCHECK(port);
*ip_address_str = address.ToStringWithoutPort();
if (ip_address_str->empty()) {
*port = 0;
} else {
*port = address.port();
}
}
Socket::WriteRequest::WriteRequest(scoped_refptr<net::IOBuffer> io_buffer,
int byte_count,
const CompletionCallback& callback)
: io_buffer(io_buffer),
byte_count(byte_count),
callback(callback),
bytes_written(0) {}
Socket::WriteRequest::~WriteRequest() {}
} // namespace extensions
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