net/tools/flip_server/spdy_interface.h

   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 NET_TOOLS_FLIP_SERVER_SPDY_INTERFACE_H_
   6 #define NET_TOOLS_FLIP_SERVER_SPDY_INTERFACE_H_
   7
   8 #include <map>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/compiler_specific.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "net/spdy/buffered_spdy_framer.h"
  15 #include "net/spdy/spdy_protocol.h"
  16 #include "net/tools/balsa/balsa_headers.h"
  17 #include "net/tools/balsa/balsa_visitor_interface.h"
  18 #include "net/tools/flip_server/output_ordering.h"
  19 #include "net/tools/flip_server/sm_connection.h"
  20 #include "net/tools/flip_server/sm_interface.h"
  21
  22 namespace net {
  23
  24 class FlipAcceptor;
  25 class MemoryCache;
  26
  27 class SpdySM : public BufferedSpdyFramerVisitorInterface, public SMInterface {
  28  public:
  29   SpdySM(SMConnection* connection,
  30          SMInterface* sm_http_interface,
  31          EpollServer* epoll_server,
  32          MemoryCache* memory_cache,
  33          FlipAcceptor* acceptor,
  34          SpdyMajorVersion spdy_version);
  35   virtual ~SpdySM();
  36
  37   virtual void InitSMInterface(SMInterface* sm_http_interface,
  38                                int32 server_idx) override {}
  39
  40   virtual void InitSMConnection(SMConnectionPoolInterface* connection_pool,
  41                                 SMInterface* sm_interface,
  42                                 EpollServer* epoll_server,
  43                                 int fd,
  44                                 std::string server_ip,
  45                                 std::string server_port,
  46                                 std::string remote_ip,
  47                                 bool use_ssl) override;
  48
  49   // Create new SPDY framer after reusing SpdySM and negotiating new version
  50   void CreateFramer(SpdyMajorVersion spdy_version);
  51
  52  private:
  53   virtual void set_is_request() override {}
  54   SMInterface* NewConnectionInterface();
  55   // virtual for tests
  56   virtual SMInterface* FindOrMakeNewSMConnectionInterface(
  57       const std::string& server_ip,
  58       const std::string& server_port);
  59   int SpdyHandleNewStream(SpdyStreamId stream_id,
  60                           SpdyPriority priority,
  61                           const SpdyHeaderBlock& headers,
  62                           std::string& http_data,
  63                           bool* is_https_scheme);
  64
  65   // BufferedSpdyFramerVisitorInterface:
  66   virtual void OnError(SpdyFramer::SpdyError error_code) override {}
  67   virtual void OnStreamError(SpdyStreamId stream_id,
  68                              const std::string& description) override {}
  69   // Called after all the header data for SYN_STREAM control frame is received.
  70   virtual void OnSynStream(SpdyStreamId stream_id,
  71                            SpdyStreamId associated_stream_id,
  72                            SpdyPriority priority,
  73                            bool fin,
  74                            bool unidirectional,
  75                            const SpdyHeaderBlock& headers) override;
  76
  77   // Called after all the header data for SYN_REPLY control frame is received.
  78   virtual void OnSynReply(SpdyStreamId stream_id,
  79                           bool fin,
  80                           const SpdyHeaderBlock& headers) override;
  81
  82   // Called after all the header data for HEADERS control frame is received.
  83   virtual void OnHeaders(SpdyStreamId stream_id,
  84                          bool fin,
  85                          const SpdyHeaderBlock& headers) override;
  86
  87   // Called when data frame header is received.
  88   virtual void OnDataFrameHeader(SpdyStreamId stream_id,
  89                                  size_t length,
  90                                  bool fin) override {}
  91
  92   // Called when data is received.
  93   // |stream_id| The stream receiving data.
  94   // |data| A buffer containing the data received.
  95   // |len| The length of the data buffer.
  96   // When the other side has finished sending data on this stream,
  97   // this method will be called with a zero-length buffer.
  98   virtual void OnStreamFrameData(SpdyStreamId stream_id,
  99                                  const char* data,
 100                                  size_t len,
 101                                  bool fin) override;
 102
 103   // Called when a SETTINGS frame is received.
 104   // |clear_persisted| True if the respective flag is set on the SETTINGS frame.
 105   virtual void OnSettings(bool clear_persisted) override {}
 106
 107   // Called when an individual setting within a SETTINGS frame has been parsed
 108   // and validated.
 109   virtual void OnSetting(SpdySettingsIds id,
 110                          uint8 flags,
 111                          uint32 value) override {}
 112
 113   // Called when a PING frame has been parsed.
 114   virtual void OnPing(SpdyPingId unique_id, bool is_ack) override {}
 115
 116   // Called when a RST_STREAM frame has been parsed.
 117   virtual void OnRstStream(SpdyStreamId stream_id,
 118                            SpdyRstStreamStatus status) override;
 119
 120   // Called when a GOAWAY frame has been parsed.
 121   virtual void OnGoAway(SpdyStreamId last_accepted_stream_id,
 122                         SpdyGoAwayStatus status) override {}
 123
 124   // Called when a WINDOW_UPDATE frame has been parsed.
 125   virtual void OnWindowUpdate(SpdyStreamId stream_id,
 126                               uint32 delta_window_size) override {}
 127
 128   // Called when a PUSH_PROMISE frame has been parsed.
 129   virtual void OnPushPromise(SpdyStreamId stream_id,
 130                              SpdyStreamId promised_stream_id,
 131                              const SpdyHeaderBlock& headers) override {}
 132
 133   virtual bool OnUnknownFrame(SpdyStreamId stream_id, int frame_type) override;
 134
 135  public:
 136   virtual size_t ProcessReadInput(const char* data, size_t len) override;
 137   virtual size_t ProcessWriteInput(const char* data, size_t len) override;
 138   virtual bool MessageFullyRead() const override;
 139   virtual void SetStreamID(uint32 stream_id) override {}
 140   virtual bool Error() const override;
 141   virtual const char* ErrorAsString() const override;
 142   virtual void Reset() override {}
 143   virtual void ResetForNewInterface(int32 server_idx) override;
 144   virtual void ResetForNewConnection() override;
 145   // SMInterface's Cleanup is currently only called by SMConnection after a
 146   // protocol message as been fully read. Spdy's SMInterface does not need
 147   // to do any cleanup at this time.
 148   // TODO(klindsay) This method is probably not being used properly and
 149   // some logic review and method renaming is probably in order.
 150   virtual void Cleanup() override {}
 151   // Send a settings frame
 152   virtual int PostAcceptHook() override;
 153   virtual void NewStream(uint32 stream_id,
 154                          uint32 priority,
 155                          const std::string& filename) override;
 156   void AddToOutputOrder(const MemCacheIter& mci);
 157   virtual void SendEOF(uint32 stream_id) override;
 158   virtual void SendErrorNotFound(uint32 stream_id) override;
 159   virtual size_t SendSynStream(uint32 stream_id,
 160                                const BalsaHeaders& headers) override;
 161   virtual size_t SendSynReply(uint32 stream_id,
 162                               const BalsaHeaders& headers) override;
 163   virtual void SendDataFrame(uint32 stream_id,
 164                              const char* data,
 165                              int64 len,
 166                              uint32 flags,
 167                              bool compress) override;
 168   BufferedSpdyFramer* spdy_framer() { return buffered_spdy_framer_.get(); }
 169
 170   const OutputOrdering& output_ordering() const {
 171     return client_output_ordering_;
 172   }
 173
 174   static std::string forward_ip_header() { return forward_ip_header_; }
 175   static void set_forward_ip_header(const std::string& value) {
 176     forward_ip_header_ = value;
 177   }
 178   SpdyMajorVersion spdy_version() const {
 179     DCHECK(buffered_spdy_framer_);
 180     return buffered_spdy_framer_->protocol_version();
 181   }
 182
 183  private:
 184   void SendEOFImpl(uint32 stream_id);
 185   void SendErrorNotFoundImpl(uint32 stream_id);
 186   void KillStream(uint32 stream_id);
 187   void CopyHeaders(SpdyHeaderBlock& dest, const BalsaHeaders& headers);
 188   size_t SendSynStreamImpl(uint32 stream_id, const BalsaHeaders& headers);
 189   size_t SendSynReplyImpl(uint32 stream_id, const BalsaHeaders& headers);
 190   void SendDataFrameImpl(uint32 stream_id,
 191                          const char* data,
 192                          int64 len,
 193                          SpdyDataFlags flags,
 194                          bool compress);
 195   void EnqueueDataFrame(DataFrame* df);
 196   virtual void GetOutput() override;
 197
 198  private:
 199   scoped_ptr<BufferedSpdyFramer> buffered_spdy_framer_;
 200   bool valid_spdy_session_;  // True if we have seen valid data on this session.
 201                              // Use this to fail fast when junk is sent to our
 202                              // port.
 203
 204   SMConnection* connection_;
 205   OutputList* client_output_list_;
 206   OutputOrdering client_output_ordering_;
 207   uint32 next_outgoing_stream_id_;
 208   EpollServer* epoll_server_;
 209   FlipAcceptor* acceptor_;
 210   MemoryCache* memory_cache_;
 211   std::vector<SMInterface*> server_interface_list;
 212   std::vector<int32> unused_server_interface_list;
 213   typedef std::map<uint32, SMInterface*> StreamToSmif;
 214   StreamToSmif stream_to_smif_;
 215   bool close_on_error_;
 216
 217   static std::string forward_ip_header_;
 218 };
 219
 220 }  // namespace net
 221
 222 #endif  // NET_TOOLS_FLIP_SERVER_SPDY_INTERFACE_H_