webrtc_m130/webrtc/base/proxyserver.h
deadbeef f137e97adb Revert of Removing HTTPS and SOCKS proxy server code. (patchset #2 id:20001 of https://codereview.webrtc.org/2731673002/ )
Also needed to revert these CLs, which removed code used by the
code being un-removed:
https://codereview.webrtc.org/2745523004
https://codereview.webrtc.org/2754033003
https://codereview.webrtc.org/2758943002

Reason for revert:
This code is still being used by native application developers, so we should send a PSA announcing the deprecation and suggest an alternative before removing it.

Original issue's description:
> Removing HTTPS and SOCKS proxy server code.
>
> This isn't used any more so there's no point in maintaining it.
>
> BUG=None
>
> Review-Url: https://codereview.webrtc.org/2731673002
> Cr-Commit-Position: refs/heads/master@{#17016}
> Committed: a1991c5175

TBR=pthatcher@webrtc.org
NOPRESUBMIT=true
NOTRY=true
BUG=None

Review-Url: https://codereview.webrtc.org/2766063005
Cr-Commit-Position: refs/heads/master@{#17369}
2017-03-23 22:45:49 +00:00

101 lines
3.4 KiB
C++

/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_BASE_PROXYSERVER_H_
#define WEBRTC_BASE_PROXYSERVER_H_
#include <list>
#include <memory>
#include "webrtc/base/asyncsocket.h"
#include "webrtc/base/constructormagic.h"
#include "webrtc/base/socketadapters.h"
#include "webrtc/base/socketaddress.h"
#include "webrtc/base/stream.h"
namespace rtc {
class SocketFactory;
// ProxyServer is a base class that allows for easy construction of proxy
// servers. With its helper class ProxyBinding, it contains all the necessary
// logic for receiving and bridging connections. The specific client-server
// proxy protocol is implemented by an instance of the AsyncProxyServerSocket
// class; children of ProxyServer implement WrapSocket appropriately to return
// the correct protocol handler.
class ProxyBinding : public sigslot::has_slots<> {
public:
ProxyBinding(AsyncProxyServerSocket* in_socket, AsyncSocket* out_socket);
~ProxyBinding() override;
sigslot::signal1<ProxyBinding*> SignalDestroyed;
private:
void OnConnectRequest(AsyncProxyServerSocket* socket,
const SocketAddress& addr);
void OnInternalRead(AsyncSocket* socket);
void OnInternalWrite(AsyncSocket* socket);
void OnInternalClose(AsyncSocket* socket, int err);
void OnExternalConnect(AsyncSocket* socket);
void OnExternalRead(AsyncSocket* socket);
void OnExternalWrite(AsyncSocket* socket);
void OnExternalClose(AsyncSocket* socket, int err);
static void Read(AsyncSocket* socket, FifoBuffer* buffer);
static void Write(AsyncSocket* socket, FifoBuffer* buffer);
void Destroy();
static const int kBufferSize = 4096;
std::unique_ptr<AsyncProxyServerSocket> int_socket_;
std::unique_ptr<AsyncSocket> ext_socket_;
bool connected_;
FifoBuffer out_buffer_;
FifoBuffer in_buffer_;
RTC_DISALLOW_COPY_AND_ASSIGN(ProxyBinding);
};
class ProxyServer : public sigslot::has_slots<> {
public:
ProxyServer(SocketFactory* int_factory, const SocketAddress& int_addr,
SocketFactory* ext_factory, const SocketAddress& ext_ip);
~ProxyServer() override;
// Returns the address to which the proxy server is bound
SocketAddress GetServerAddress();
protected:
void OnAcceptEvent(AsyncSocket* socket);
virtual AsyncProxyServerSocket* WrapSocket(AsyncSocket* socket) = 0;
void OnBindingDestroyed(ProxyBinding* binding);
private:
typedef std::list<ProxyBinding*> BindingList;
SocketFactory* ext_factory_;
SocketAddress ext_ip_;
std::unique_ptr<AsyncSocket> server_socket_;
BindingList bindings_;
RTC_DISALLOW_COPY_AND_ASSIGN(ProxyServer);
};
// SocksProxyServer is a simple extension of ProxyServer to implement SOCKS.
class SocksProxyServer : public ProxyServer {
public:
SocksProxyServer(SocketFactory* int_factory, const SocketAddress& int_addr,
SocketFactory* ext_factory, const SocketAddress& ext_ip)
: ProxyServer(int_factory, int_addr, ext_factory, ext_ip) {
}
protected:
AsyncProxyServerSocket* WrapSocket(AsyncSocket* socket) override;
RTC_DISALLOW_COPY_AND_ASSIGN(SocksProxyServer);
};
} // namespace rtc
#endif // WEBRTC_BASE_PROXYSERVER_H_