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      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
      3 // found in the LICENSE file.
      4 
      5 #ifndef REMOTING_PROTOCOL_FAKE_SESSION_H_
      6 #define REMOTING_PROTOCOL_FAKE_SESSION_H_
      7 
      8 #include <map>
      9 #include <string>
     10 #include <vector>
     11 
     12 #include "base/memory/scoped_ptr.h"
     13 #include "base/memory/weak_ptr.h"
     14 #include "net/base/completion_callback.h"
     15 #include "net/socket/socket.h"
     16 #include "net/socket/stream_socket.h"
     17 #include "remoting/protocol/channel_factory.h"
     18 #include "remoting/protocol/session.h"
     19 
     20 namespace base {
     21 class MessageLoop;
     22 }
     23 
     24 namespace remoting {
     25 namespace protocol {
     26 
     27 extern const char kTestJid[];
     28 
     29 // FakeSocket implement net::Socket interface for FakeConnection. All data
     30 // written to FakeSocket is stored in a buffer returned by written_data().
     31 // Read() reads data from another buffer that can be set with AppendInputData().
     32 // Pending reads are supported, so if there is a pending read AppendInputData()
     33 // calls the read callback.
     34 //
     35 // Two fake sockets can be connected to each other using the
     36 // PairWith() method, e.g.: a->PairWith(b). After this all data
     37 // written to |a| can be read from |b| and vica versa. Two connected
     38 // sockets |a| and |b| must be created and used on the same thread.
     39 class FakeSocket : public net::StreamSocket {
     40  public:
     41   FakeSocket();
     42   virtual ~FakeSocket();
     43 
     44   const std::string& written_data() const { return written_data_; }
     45 
     46   void set_write_limit(int write_limit) { write_limit_ = write_limit; }
     47   void set_async_write(bool async_write) { async_write_ = async_write; }
     48   void set_next_write_error(int error) { next_write_error_ = error; }
     49   void set_next_read_error(int error) { next_read_error_ = error; }
     50   void AppendInputData(const std::vector<char>& data);
     51   void PairWith(FakeSocket* peer_socket);
     52   int input_pos() const { return input_pos_; }
     53   bool read_pending() const { return read_pending_; }
     54 
     55   // net::Socket implementation.
     56   virtual int Read(net::IOBuffer* buf, int buf_len,
     57                    const net::CompletionCallback& callback) OVERRIDE;
     58   virtual int Write(net::IOBuffer* buf, int buf_len,
     59                     const net::CompletionCallback& callback) OVERRIDE;
     60 
     61   virtual bool SetReceiveBufferSize(int32 size) OVERRIDE;
     62   virtual bool SetSendBufferSize(int32 size) OVERRIDE;
     63 
     64   // net::StreamSocket interface.
     65   virtual int Connect(const net::CompletionCallback& callback) OVERRIDE;
     66   virtual void Disconnect() OVERRIDE;
     67   virtual bool IsConnected() const OVERRIDE;
     68   virtual bool IsConnectedAndIdle() const OVERRIDE;
     69   virtual int GetPeerAddress(net::IPEndPoint* address) const OVERRIDE;
     70   virtual int GetLocalAddress(net::IPEndPoint* address) const OVERRIDE;
     71   virtual const net::BoundNetLog& NetLog() const OVERRIDE;
     72   virtual void SetSubresourceSpeculation() OVERRIDE;
     73   virtual void SetOmniboxSpeculation() OVERRIDE;
     74   virtual bool WasEverUsed() const OVERRIDE;
     75   virtual bool UsingTCPFastOpen() const OVERRIDE;
     76   virtual bool WasNpnNegotiated() const OVERRIDE;
     77   virtual net::NextProto GetNegotiatedProtocol() const OVERRIDE;
     78   virtual bool GetSSLInfo(net::SSLInfo* ssl_info) OVERRIDE;
     79 
     80  private:
     81   void DoAsyncWrite(scoped_refptr<net::IOBuffer> buf, int buf_len,
     82                     const net::CompletionCallback& callback);
     83   void DoWrite(net::IOBuffer* buf, int buf_len);
     84 
     85   bool async_write_;
     86   bool write_pending_;
     87   int write_limit_;
     88   int next_write_error_;
     89 
     90   int next_read_error_;
     91   bool read_pending_;
     92   scoped_refptr<net::IOBuffer> read_buffer_;
     93   int read_buffer_size_;
     94   net::CompletionCallback read_callback_;
     95   base::WeakPtr<FakeSocket> peer_socket_;
     96 
     97   std::string written_data_;
     98   std::string input_data_;
     99   int input_pos_;
    100 
    101   net::BoundNetLog net_log_;
    102 
    103   base::MessageLoop* message_loop_;
    104   base::WeakPtrFactory<FakeSocket> weak_factory_;
    105 
    106   DISALLOW_COPY_AND_ASSIGN(FakeSocket);
    107 };
    108 
    109 // FakeUdpSocket is similar to FakeSocket but behaves as UDP socket. All written
    110 // packets are stored separetely in written_packets(). AppendInputPacket() adds
    111 // one packet that will be returned by Read().
    112 class FakeUdpSocket : public net::Socket {
    113  public:
    114   FakeUdpSocket();
    115   virtual ~FakeUdpSocket();
    116 
    117   const std::vector<std::string>& written_packets() const {
    118     return written_packets_;
    119   }
    120 
    121   void AppendInputPacket(const char* data, int data_size);
    122   int input_pos() const { return input_pos_; }
    123 
    124   // net::Socket implementation.
    125   virtual int Read(net::IOBuffer* buf, int buf_len,
    126                    const net::CompletionCallback& callback) OVERRIDE;
    127   virtual int Write(net::IOBuffer* buf, int buf_len,
    128                     const net::CompletionCallback& callback) OVERRIDE;
    129 
    130   virtual bool SetReceiveBufferSize(int32 size) OVERRIDE;
    131   virtual bool SetSendBufferSize(int32 size) OVERRIDE;
    132 
    133  private:
    134   bool read_pending_;
    135   scoped_refptr<net::IOBuffer> read_buffer_;
    136   int read_buffer_size_;
    137   net::CompletionCallback read_callback_;
    138 
    139   std::vector<std::string> written_packets_;
    140   std::vector<std::string> input_packets_;
    141   int input_pos_;
    142 
    143   base::MessageLoop* message_loop_;
    144 
    145   DISALLOW_COPY_AND_ASSIGN(FakeUdpSocket);
    146 };
    147 
    148 // FakeSession is a dummy protocol::Session that uses FakeSocket for all
    149 // channels.
    150 class FakeSession : public Session,
    151                     public ChannelFactory {
    152  public:
    153   FakeSession();
    154   virtual ~FakeSession();
    155 
    156   EventHandler* event_handler() { return event_handler_; }
    157 
    158   void set_async_creation(bool async_creation) {
    159     async_creation_ = async_creation;
    160   }
    161 
    162   void set_error(ErrorCode error) { error_ = error; }
    163 
    164   bool is_closed() const { return closed_; }
    165 
    166   FakeSocket* GetStreamChannel(const std::string& name);
    167   FakeUdpSocket* GetDatagramChannel(const std::string& name);
    168 
    169   // Session interface.
    170   virtual void SetEventHandler(EventHandler* event_handler) OVERRIDE;
    171   virtual ErrorCode error() OVERRIDE;
    172   virtual const std::string& jid() OVERRIDE;
    173   virtual const CandidateSessionConfig* candidate_config() OVERRIDE;
    174   virtual const SessionConfig& config() OVERRIDE;
    175   virtual void set_config(const SessionConfig& config) OVERRIDE;
    176   virtual ChannelFactory* GetTransportChannelFactory() OVERRIDE;
    177   virtual ChannelFactory* GetMultiplexedChannelFactory() OVERRIDE;
    178   virtual void Close() OVERRIDE;
    179 
    180   // ChannelFactory interface.
    181   virtual void CreateStreamChannel(
    182       const std::string& name,
    183       const StreamChannelCallback& callback) OVERRIDE;
    184   virtual void CreateDatagramChannel(
    185       const std::string& name,
    186       const DatagramChannelCallback& callback) OVERRIDE;
    187   virtual void CancelChannelCreation(const std::string& name) OVERRIDE;
    188 
    189  public:
    190   void NotifyStreamChannelCallback(
    191       const std::string& name,
    192       const StreamChannelCallback& callback);
    193   void NotifyDatagramChannelCallback(
    194       const std::string& name,
    195       const DatagramChannelCallback& callback);
    196 
    197   EventHandler* event_handler_;
    198   scoped_ptr<const CandidateSessionConfig> candidate_config_;
    199   SessionConfig config_;
    200   base::MessageLoop* message_loop_;
    201 
    202   bool async_creation_;
    203 
    204   std::map<std::string, FakeSocket*> stream_channels_;
    205   std::map<std::string, FakeUdpSocket*> datagram_channels_;
    206 
    207   std::string jid_;
    208 
    209   ErrorCode error_;
    210   bool closed_;
    211 
    212   base::WeakPtrFactory<FakeSession> weak_factory_;
    213 
    214   DISALLOW_COPY_AND_ASSIGN(FakeSession);
    215 };
    216 
    217 }  // namespace protocol
    218 }  // namespace remoting
    219 
    220 #endif  // REMOTING_PROTOCOL_FAKE_SESSION_H_
    221