1 // Copyright (c) 2011 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 NET_TOOLS_FLIP_SERVER_SM_CONNECTION_H_ 6 #define NET_TOOLS_FLIP_SERVER_SM_CONNECTION_H_ 7 8 #include <arpa/inet.h> // in_addr_t 9 #include <time.h> 10 11 #include <list> 12 #include <string> 13 14 #include "base/compiler_specific.h" 15 #include "net/spdy/spdy_protocol.h" 16 #include "net/tools/epoll_server/epoll_server.h" 17 #include "net/tools/flip_server/create_listener.h" 18 #include "net/tools/flip_server/mem_cache.h" 19 #include "net/tools/flip_server/ring_buffer.h" 20 #include "net/tools/flip_server/sm_interface.h" 21 #include "openssl/ssl.h" 22 23 namespace net { 24 25 class FlipAcceptor; 26 class MemoryCache; 27 struct SSLState; 28 class SpdySM; 29 30 // A frame of data to be sent. 31 class DataFrame { 32 public: 33 const char* data; 34 size_t size; 35 bool delete_when_done; 36 size_t index; DataFrame()37 DataFrame() : data(NULL), size(0), delete_when_done(false), index(0) {} 38 virtual ~DataFrame(); 39 }; 40 41 typedef std::list<DataFrame*> OutputList; 42 43 class SMConnection : public SMConnectionInterface, 44 public EpollCallbackInterface, 45 public NotifierInterface { 46 public: 47 virtual ~SMConnection(); 48 49 static SMConnection* NewSMConnection(EpollServer* epoll_server, 50 SSLState* ssl_state, 51 MemoryCache* memory_cache, 52 FlipAcceptor* acceptor, 53 std::string log_prefix); 54 55 // TODO(mbelshe): Make these private. 56 time_t last_read_time_; 57 std::string server_ip_; 58 std::string server_port_; 59 60 virtual EpollServer* epoll_server() OVERRIDE; output_list()61 OutputList* output_list() { return &output_list_; } memory_cache()62 MemoryCache* memory_cache() { return memory_cache_; } 63 virtual void ReadyToSend() OVERRIDE; 64 void EnqueueDataFrame(DataFrame* df); 65 fd()66 int fd() const { return fd_; } initialized()67 bool initialized() const { return initialized_; } client_ip()68 std::string client_ip() const { return client_ip_; } 69 70 virtual void InitSMConnection(SMConnectionPoolInterface* connection_pool, 71 SMInterface* sm_interface, 72 EpollServer* epoll_server, 73 int fd, 74 std::string server_ip, 75 std::string server_port, 76 std::string remote_ip, 77 bool use_ssl); 78 79 void CorkSocket(); 80 void UncorkSocket(); 81 82 int Send(const char* data, int len, int flags); 83 84 // EpollCallbackInterface interface. 85 virtual void OnRegistration(EpollServer* eps, 86 int fd, 87 int event_mask) OVERRIDE; OnModification(int fd,int event_mask)88 virtual void OnModification(int fd, int event_mask) OVERRIDE {} 89 virtual void OnEvent(int fd, EpollEvent* event) OVERRIDE; 90 virtual void OnUnregistration(int fd, bool replaced) OVERRIDE; 91 virtual void OnShutdown(EpollServer* eps, int fd) OVERRIDE; 92 93 // NotifierInterface interface. Notify()94 virtual void Notify() OVERRIDE {} 95 96 void Cleanup(const char* cleanup); 97 98 // Flag indicating if we should force spdy on all connections. force_spdy()99 static bool force_spdy() { return force_spdy_; } set_force_spdy(bool value)100 static void set_force_spdy(bool value) { force_spdy_ = value; } 101 102 private: 103 // Decide if SPDY was negotiated. 104 bool WasSpdyNegotiated(SpdyMajorVersion* version_negotiated); 105 106 // Initialize the protocol interfaces we'll need for this connection. 107 // Returns true if successful, false otherwise. 108 bool SetupProtocolInterfaces(); 109 110 bool DoRead(); 111 bool DoWrite(); 112 bool DoConsumeReadData(); 113 void Reset(); 114 115 void HandleEvents(); 116 void HandleResponseFullyRead(); 117 118 protected: 119 friend std::ostream& operator<<(std::ostream& os, const SMConnection& c) { 120 os << &c << "\n"; 121 return os; 122 } 123 124 SMConnection(EpollServer* epoll_server, 125 SSLState* ssl_state, 126 MemoryCache* memory_cache, 127 FlipAcceptor* acceptor, 128 std::string log_prefix); 129 130 private: 131 int fd_; 132 int events_; 133 134 bool registered_in_epoll_server_; 135 bool initialized_; 136 bool protocol_detected_; 137 bool connection_complete_; 138 139 SMConnectionPoolInterface* connection_pool_; 140 141 EpollServer* epoll_server_; 142 SSLState* ssl_state_; 143 MemoryCache* memory_cache_; 144 FlipAcceptor* acceptor_; 145 std::string client_ip_; 146 147 RingBuffer read_buffer_; 148 149 OutputList output_list_; 150 SpdySM* sm_spdy_interface_; 151 SMInterface* sm_http_interface_; 152 SMInterface* sm_streamer_interface_; 153 SMInterface* sm_interface_; 154 std::string log_prefix_; 155 156 size_t max_bytes_sent_per_dowrite_; 157 158 SSL* ssl_; 159 160 static bool force_spdy_; 161 }; 162 163 } // namespace net 164 165 #endif // NET_TOOLS_FLIP_SERVER_SM_CONNECTION_H_ 166