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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_TOOLS_FLIP_SERVER_SPDY_INTERFACE_H_
#define NET_TOOLS_FLIP_SERVER_SPDY_INTERFACE_H_
#include <map>
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "net/spdy/buffered_spdy_framer.h"
#include "net/spdy/spdy_protocol.h"
#include "net/tools/balsa/balsa_headers.h"
#include "net/tools/balsa/balsa_visitor_interface.h"
#include "net/tools/flip_server/output_ordering.h"
#include "net/tools/flip_server/sm_connection.h"
#include "net/tools/flip_server/sm_interface.h"
namespace net {
class FlipAcceptor;
class MemoryCache;
class SpdySM : public BufferedSpdyFramerVisitorInterface, public SMInterface {
public:
SpdySM(SMConnection* connection,
SMInterface* sm_http_interface,
EpollServer* epoll_server,
MemoryCache* memory_cache,
FlipAcceptor* acceptor,
SpdyMajorVersion spdy_version);
virtual ~SpdySM();
virtual void InitSMInterface(SMInterface* sm_http_interface,
int32 server_idx) OVERRIDE {}
virtual void InitSMConnection(SMConnectionPoolInterface* connection_pool,
SMInterface* sm_interface,
EpollServer* epoll_server,
int fd,
std::string server_ip,
std::string server_port,
std::string remote_ip,
bool use_ssl) OVERRIDE;
// Create new SPDY framer after reusing SpdySM and negotiating new version
void CreateFramer(SpdyMajorVersion spdy_version);
private:
virtual void set_is_request() OVERRIDE {}
SMInterface* NewConnectionInterface();
// virtual for tests
virtual SMInterface* FindOrMakeNewSMConnectionInterface(
const std::string& server_ip,
const std::string& server_port);
int SpdyHandleNewStream(SpdyStreamId stream_id,
SpdyPriority priority,
const SpdyHeaderBlock& headers,
std::string& http_data,
bool* is_https_scheme);
// BufferedSpdyFramerVisitorInterface:
virtual void OnError(SpdyFramer::SpdyError error_code) OVERRIDE {}
virtual void OnStreamError(SpdyStreamId stream_id,
const std::string& description) OVERRIDE {}
// Called after all the header data for SYN_STREAM control frame is received.
virtual void OnSynStream(SpdyStreamId stream_id,
SpdyStreamId associated_stream_id,
SpdyPriority priority,
bool fin,
bool unidirectional,
const SpdyHeaderBlock& headers) OVERRIDE;
// Called after all the header data for SYN_REPLY control frame is received.
virtual void OnSynReply(SpdyStreamId stream_id,
bool fin,
const SpdyHeaderBlock& headers) OVERRIDE;
// Called after all the header data for HEADERS control frame is received.
virtual void OnHeaders(SpdyStreamId stream_id,
bool fin,
const SpdyHeaderBlock& headers) OVERRIDE;
// Called when data frame header is received.
virtual void OnDataFrameHeader(SpdyStreamId stream_id,
size_t length,
bool fin) OVERRIDE {}
// Called when data is received.
// |stream_id| The stream receiving data.
// |data| A buffer containing the data received.
// |len| The length of the data buffer.
// When the other side has finished sending data on this stream,
// this method will be called with a zero-length buffer.
virtual void OnStreamFrameData(SpdyStreamId stream_id,
const char* data,
size_t len,
bool fin) OVERRIDE;
// Called when a SETTINGS frame is received.
// |clear_persisted| True if the respective flag is set on the SETTINGS frame.
virtual void OnSettings(bool clear_persisted) OVERRIDE {}
// Called when an individual setting within a SETTINGS frame has been parsed
// and validated.
virtual void OnSetting(SpdySettingsIds id,
uint8 flags,
uint32 value) OVERRIDE {}
// Called when a PING frame has been parsed.
virtual void OnPing(SpdyPingId unique_id, bool is_ack) OVERRIDE {}
// Called when a RST_STREAM frame has been parsed.
virtual void OnRstStream(SpdyStreamId stream_id,
SpdyRstStreamStatus status) OVERRIDE;
// Called when a GOAWAY frame has been parsed.
virtual void OnGoAway(SpdyStreamId last_accepted_stream_id,
SpdyGoAwayStatus status) OVERRIDE {}
// Called when a WINDOW_UPDATE frame has been parsed.
virtual void OnWindowUpdate(SpdyStreamId stream_id,
uint32 delta_window_size) OVERRIDE {}
// Called when a PUSH_PROMISE frame has been parsed.
virtual void OnPushPromise(SpdyStreamId stream_id,
SpdyStreamId promised_stream_id,
const SpdyHeaderBlock& headers) OVERRIDE {}
virtual bool OnUnknownFrame(SpdyStreamId stream_id, int frame_type) OVERRIDE;
public:
virtual size_t ProcessReadInput(const char* data, size_t len) OVERRIDE;
virtual size_t ProcessWriteInput(const char* data, size_t len) OVERRIDE;
virtual bool MessageFullyRead() const OVERRIDE;
virtual void SetStreamID(uint32 stream_id) OVERRIDE {}
virtual bool Error() const OVERRIDE;
virtual const char* ErrorAsString() const OVERRIDE;
virtual void Reset() OVERRIDE {}
virtual void ResetForNewInterface(int32 server_idx) OVERRIDE;
virtual void ResetForNewConnection() OVERRIDE;
// SMInterface's Cleanup is currently only called by SMConnection after a
// protocol message as been fully read. Spdy's SMInterface does not need
// to do any cleanup at this time.
// TODO(klindsay) This method is probably not being used properly and
// some logic review and method renaming is probably in order.
virtual void Cleanup() OVERRIDE {}
// Send a settings frame
virtual int PostAcceptHook() OVERRIDE;
virtual void NewStream(uint32 stream_id,
uint32 priority,
const std::string& filename) OVERRIDE;
void AddToOutputOrder(const MemCacheIter& mci);
virtual void SendEOF(uint32 stream_id) OVERRIDE;
virtual void SendErrorNotFound(uint32 stream_id) OVERRIDE;
virtual size_t SendSynStream(uint32 stream_id,
const BalsaHeaders& headers) OVERRIDE;
virtual size_t SendSynReply(uint32 stream_id,
const BalsaHeaders& headers) OVERRIDE;
virtual void SendDataFrame(uint32 stream_id,
const char* data,
int64 len,
uint32 flags,
bool compress) OVERRIDE;
BufferedSpdyFramer* spdy_framer() { return buffered_spdy_framer_.get(); }
const OutputOrdering& output_ordering() const {
return client_output_ordering_;
}
static std::string forward_ip_header() { return forward_ip_header_; }
static void set_forward_ip_header(const std::string& value) {
forward_ip_header_ = value;
}
SpdyMajorVersion spdy_version() const {
DCHECK(buffered_spdy_framer_);
return buffered_spdy_framer_->protocol_version();
}
private:
void SendEOFImpl(uint32 stream_id);
void SendErrorNotFoundImpl(uint32 stream_id);
void KillStream(uint32 stream_id);
void CopyHeaders(SpdyHeaderBlock& dest, const BalsaHeaders& headers);
size_t SendSynStreamImpl(uint32 stream_id, const BalsaHeaders& headers);
size_t SendSynReplyImpl(uint32 stream_id, const BalsaHeaders& headers);
void SendDataFrameImpl(uint32 stream_id,
const char* data,
int64 len,
SpdyDataFlags flags,
bool compress);
void EnqueueDataFrame(DataFrame* df);
virtual void GetOutput() OVERRIDE;
private:
scoped_ptr<BufferedSpdyFramer> buffered_spdy_framer_;
bool valid_spdy_session_; // True if we have seen valid data on this session.
// Use this to fail fast when junk is sent to our
// port.
SMConnection* connection_;
OutputList* client_output_list_;
OutputOrdering client_output_ordering_;
uint32 next_outgoing_stream_id_;
EpollServer* epoll_server_;
FlipAcceptor* acceptor_;
MemoryCache* memory_cache_;
std::vector<SMInterface*> server_interface_list;
std::vector<int32> unused_server_interface_list;
typedef std::map<uint32, SMInterface*> StreamToSmif;
StreamToSmif stream_to_smif_;
bool close_on_error_;
static std::string forward_ip_header_;
};
} // namespace net
#endif // NET_TOOLS_FLIP_SERVER_SPDY_INTERFACE_H_