Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / extensions / browser / api / socket / socket.h
1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef EXTENSIONS_BROWSER_API_SOCKET_SOCKET_H_
6 #define EXTENSIONS_BROWSER_API_SOCKET_SOCKET_H_
7
8 #include <queue>
9 #include <string>
10 #include <utility>
11
12 #include "base/callback.h"
13 #include "base/memory/ref_counted.h"
14 #include "extensions/browser/api/api_resource.h"
15 #include "extensions/browser/api/api_resource_manager.h"
16 #include "net/base/completion_callback.h"
17 #include "net/base/io_buffer.h"
18 #include "net/base/ip_endpoint.h"
19 #include "net/socket/tcp_client_socket.h"
20
21 namespace net {
22 class AddressList;
23 class IPEndPoint;
24 class Socket;
25 }
26
27 namespace extensions {
28
29 typedef base::Callback<void(int)> CompletionCallback;
30 typedef base::Callback<void(int, scoped_refptr<net::IOBuffer> io_buffer)>
31     ReadCompletionCallback;
32 typedef base::Callback<
33     void(int, scoped_refptr<net::IOBuffer> io_buffer, const std::string&, int)>
34     RecvFromCompletionCallback;
35 typedef base::Callback<void(int, net::TCPClientSocket*)>
36     AcceptCompletionCallback;
37
38 // A Socket wraps a low-level socket and includes housekeeping information that
39 // we need to manage it in the context of an extension.
40 class Socket : public ApiResource {
41  public:
42   enum SocketType { TYPE_TCP, TYPE_UDP, TYPE_TLS };
43
44   ~Socket() override;
45
46   // The hostname of the remote host that this socket is connected to.  This
47   // may be the empty string if the client does not intend to ever upgrade the
48   // socket to TLS, and thusly has not invoked set_hostname().
49   const std::string& hostname() const { return hostname_; }
50
51   // Set the hostname of the remote host that this socket is connected to.
52   // Note: This may be an IP literal. In the case of IDNs, this should be a
53   // series of U-LABELs (UTF-8), not A-LABELs. IP literals for IPv6 will be
54   // unbracketed.
55   void set_hostname(const std::string& hostname) { hostname_ = hostname; }
56
57   // Note: |address| contains the resolved IP address, not the hostname of
58   // the remote endpoint. In order to upgrade this socket to TLS, callers
59   // must also supply the hostname of the endpoint via set_hostname().
60   virtual void Connect(const std::string& address,
61                        int port,
62                        const CompletionCallback& callback) = 0;
63   virtual void Disconnect() = 0;
64   virtual int Bind(const std::string& address, int port) = 0;
65
66   // The |callback| will be called with the number of bytes read into the
67   // buffer, or a negative number if an error occurred.
68   virtual void Read(int count, const ReadCompletionCallback& callback) = 0;
69
70   // The |callback| will be called with |byte_count| or a negative number if an
71   // error occurred.
72   void Write(scoped_refptr<net::IOBuffer> io_buffer,
73              int byte_count,
74              const CompletionCallback& callback);
75
76   virtual void RecvFrom(int count,
77                         const RecvFromCompletionCallback& callback) = 0;
78   virtual void SendTo(scoped_refptr<net::IOBuffer> io_buffer,
79                       int byte_count,
80                       const std::string& address,
81                       int port,
82                       const CompletionCallback& callback) = 0;
83
84   virtual bool SetKeepAlive(bool enable, int delay);
85   virtual bool SetNoDelay(bool no_delay);
86   virtual int Listen(const std::string& address,
87                      int port,
88                      int backlog,
89                      std::string* error_msg);
90   virtual void Accept(const AcceptCompletionCallback& callback);
91
92   virtual bool IsConnected() = 0;
93
94   virtual bool GetPeerAddress(net::IPEndPoint* address) = 0;
95   virtual bool GetLocalAddress(net::IPEndPoint* address) = 0;
96
97   virtual SocketType GetSocketType() const = 0;
98
99   static bool StringAndPortToAddressList(const std::string& ip_address_str,
100                                          int port,
101                                          net::AddressList* address_list);
102   static bool StringAndPortToIPEndPoint(const std::string& ip_address_str,
103                                         int port,
104                                         net::IPEndPoint* ip_end_point);
105   static void IPEndPointToStringAndPort(const net::IPEndPoint& address,
106                                         std::string* ip_address_str,
107                                         int* port);
108
109  protected:
110   explicit Socket(const std::string& owner_extension_id_);
111
112   void WriteData();
113   virtual int WriteImpl(net::IOBuffer* io_buffer,
114                         int io_buffer_size,
115                         const net::CompletionCallback& callback) = 0;
116   virtual void OnWriteComplete(int result);
117
118   std::string hostname_;
119   bool is_connected_;
120
121  private:
122   friend class ApiResourceManager<Socket>;
123   static const char* service_name() { return "SocketManager"; }
124
125   struct WriteRequest {
126     WriteRequest(scoped_refptr<net::IOBuffer> io_buffer,
127                  int byte_count,
128                  const CompletionCallback& callback);
129     ~WriteRequest();
130     scoped_refptr<net::IOBuffer> io_buffer;
131     int byte_count;
132     CompletionCallback callback;
133     int bytes_written;
134   };
135   std::queue<WriteRequest> write_queue_;
136   scoped_refptr<net::IOBuffer> io_buffer_write_;
137 };
138
139 }  //  namespace extensions
140
141 #endif  // EXTENSIONS_BROWSER_API_SOCKET_SOCKET_H_