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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef NET_SOCKET_SOCKS5_CLIENT_SOCKET_H_ | 5 #ifndef NET_SOCKET_SOCKS5_CLIENT_SOCKET_H_ |
| 6 #define NET_SOCKET_SOCKS5_CLIENT_SOCKET_H_ | 6 #define NET_SOCKET_SOCKS5_CLIENT_SOCKET_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 #include <stdint.h> | 9 #include <stdint.h> |
| 10 | 10 |
| 11 #include <memory> |
| 11 #include <string> | 12 #include <string> |
| 12 | 13 |
| 13 #include "base/macros.h" | 14 #include "base/macros.h" |
| 14 #include "base/memory/ref_counted.h" | 15 #include "base/memory/ref_counted.h" |
| 15 #include "base/memory/scoped_ptr.h" | |
| 16 #include "net/base/address_list.h" | 16 #include "net/base/address_list.h" |
| 17 #include "net/base/completion_callback.h" | 17 #include "net/base/completion_callback.h" |
| 18 #include "net/base/net_errors.h" | 18 #include "net/base/net_errors.h" |
| 19 #include "net/dns/host_resolver.h" | 19 #include "net/dns/host_resolver.h" |
| 20 #include "net/log/net_log.h" | 20 #include "net/log/net_log.h" |
| 21 #include "net/socket/stream_socket.h" | 21 #include "net/socket/stream_socket.h" |
| 22 #include "url/gurl.h" | 22 #include "url/gurl.h" |
| 23 | 23 |
| 24 namespace net { | 24 namespace net { |
| 25 | 25 |
| 26 class ClientSocketHandle; | 26 class ClientSocketHandle; |
| 27 class BoundNetLog; | 27 class BoundNetLog; |
| 28 | 28 |
| 29 // This StreamSocket is used to setup a SOCKSv5 handshake with a socks proxy. | 29 // This StreamSocket is used to setup a SOCKSv5 handshake with a socks proxy. |
| 30 // Currently no SOCKSv5 authentication is supported. | 30 // Currently no SOCKSv5 authentication is supported. |
| 31 class NET_EXPORT_PRIVATE SOCKS5ClientSocket : public StreamSocket { | 31 class NET_EXPORT_PRIVATE SOCKS5ClientSocket : public StreamSocket { |
| 32 public: | 32 public: |
| 33 // |req_info| contains the hostname and port to which the socket above will | 33 // |req_info| contains the hostname and port to which the socket above will |
| 34 // communicate to via the SOCKS layer. | 34 // communicate to via the SOCKS layer. |
| 35 // | 35 // |
| 36 // Although SOCKS 5 supports 3 different modes of addressing, we will | 36 // Although SOCKS 5 supports 3 different modes of addressing, we will |
| 37 // always pass it a hostname. This means the DNS resolving is done | 37 // always pass it a hostname. This means the DNS resolving is done |
| 38 // proxy side. | 38 // proxy side. |
| 39 SOCKS5ClientSocket(scoped_ptr<ClientSocketHandle> transport_socket, | 39 SOCKS5ClientSocket(std::unique_ptr<ClientSocketHandle> transport_socket, |
| 40 const HostResolver::RequestInfo& req_info); | 40 const HostResolver::RequestInfo& req_info); |
| 41 | 41 |
| 42 // On destruction Disconnect() is called. | 42 // On destruction Disconnect() is called. |
| 43 ~SOCKS5ClientSocket() override; | 43 ~SOCKS5ClientSocket() override; |
| 44 | 44 |
| 45 // StreamSocket implementation. | 45 // StreamSocket implementation. |
| 46 | 46 |
| 47 // Does the SOCKS handshake and completes the protocol. | 47 // Does the SOCKS handshake and completes the protocol. |
| 48 int Connect(const CompletionCallback& callback) override; | 48 int Connect(const CompletionCallback& callback) override; |
| 49 void Disconnect() override; | 49 void Disconnect() override; |
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| 116 int DoGreetWrite(); | 116 int DoGreetWrite(); |
| 117 int DoGreetWriteComplete(int result); | 117 int DoGreetWriteComplete(int result); |
| 118 | 118 |
| 119 // Writes the SOCKS handshake buffer into |handshake| | 119 // Writes the SOCKS handshake buffer into |handshake| |
| 120 // and return OK on success. | 120 // and return OK on success. |
| 121 int BuildHandshakeWriteBuffer(std::string* handshake) const; | 121 int BuildHandshakeWriteBuffer(std::string* handshake) const; |
| 122 | 122 |
| 123 CompletionCallback io_callback_; | 123 CompletionCallback io_callback_; |
| 124 | 124 |
| 125 // Stores the underlying socket. | 125 // Stores the underlying socket. |
| 126 scoped_ptr<ClientSocketHandle> transport_; | 126 std::unique_ptr<ClientSocketHandle> transport_; |
| 127 | 127 |
| 128 State next_state_; | 128 State next_state_; |
| 129 | 129 |
| 130 // Stores the callback to the layer above, called on completing Connect(). | 130 // Stores the callback to the layer above, called on completing Connect(). |
| 131 CompletionCallback user_callback_; | 131 CompletionCallback user_callback_; |
| 132 | 132 |
| 133 // This IOBuffer is used by the class to read and write | 133 // This IOBuffer is used by the class to read and write |
| 134 // SOCKS handshake data. The length contains the expected size to | 134 // SOCKS handshake data. The length contains the expected size to |
| 135 // read or write. | 135 // read or write. |
| 136 scoped_refptr<IOBuffer> handshake_buf_; | 136 scoped_refptr<IOBuffer> handshake_buf_; |
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| 154 HostResolver::RequestInfo host_request_info_; | 154 HostResolver::RequestInfo host_request_info_; |
| 155 | 155 |
| 156 BoundNetLog net_log_; | 156 BoundNetLog net_log_; |
| 157 | 157 |
| 158 DISALLOW_COPY_AND_ASSIGN(SOCKS5ClientSocket); | 158 DISALLOW_COPY_AND_ASSIGN(SOCKS5ClientSocket); |
| 159 }; | 159 }; |
| 160 | 160 |
| 161 } // namespace net | 161 } // namespace net |
| 162 | 162 |
| 163 #endif // NET_SOCKET_SOCKS5_CLIENT_SOCKET_H_ | 163 #endif // NET_SOCKET_SOCKS5_CLIENT_SOCKET_H_ |
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