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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_BASE_HTTPBASE_H__
#define TALK_BASE_HTTPBASE_H__
#include "talk/base/httpcommon.h"
namespace talk_base {
class StreamInterface;
//////////////////////////////////////////////////////////////////////
// HttpParser
//////////////////////////////////////////////////////////////////////
class HttpParser {
public:
HttpParser();
virtual ~HttpParser();
void reset();
bool process(const char* buffer, size_t len, size_t& read, HttpError& err);
void end_of_input();
void complete(HttpError err);
protected:
bool process_line(const char* line, size_t len, HttpError& err);
// HttpParser Interface
virtual HttpError onHttpRecvLeader(const char* line, size_t len) = 0;
virtual HttpError onHttpRecvHeader(const char* name, size_t nlen,
const char* value, size_t vlen) = 0;
virtual HttpError onHttpRecvHeaderComplete(bool chunked, size_t& data_size) = 0;
virtual HttpError onHttpRecvData(const char* data, size_t len, size_t& read) = 0;
virtual void onHttpRecvComplete(HttpError err) = 0;
private:
enum State {
ST_LEADER, ST_HEADERS,
ST_CHUNKSIZE, ST_CHUNKTERM, ST_TRAILERS,
ST_DATA, ST_COMPLETE
} state_;
bool chunked_;
size_t data_size_;
size_t total_size; //add by chobits
};
//////////////////////////////////////////////////////////////////////
// IHttpNotify
//////////////////////////////////////////////////////////////////////
enum HttpMode { HM_NONE, HM_CONNECT, HM_RECV, HM_SEND };
class IHttpNotify {
public:
virtual HttpError onHttpHeaderComplete(bool chunked, size_t& data_size) = 0;
virtual void onHttpComplete(HttpMode mode, HttpError err) = 0;
virtual void onHttpClosed(HttpError err) = 0;
};
//////////////////////////////////////////////////////////////////////
// HttpBase
//////////////////////////////////////////////////////////////////////
class HttpBase : private HttpParser, public sigslot::has_slots<> {
public:
HttpBase();
virtual ~HttpBase();
void notify(IHttpNotify* notify) { notify_ = notify; }
bool attach(StreamInterface* stream);
StreamInterface* stream() { return stream_; }
StreamInterface* detach();
bool isConnected() const;
void send(HttpData* data);
void recv(HttpData* data);
void abort(HttpError err);
HttpMode mode() const { return mode_; }
void set_ignore_data(bool ignore) { ignore_data_ = ignore; }
bool ignore_data() const { return ignore_data_; }
protected:
void flush_data();
void queue_headers();
void do_complete(HttpError err = HE_NONE);
void OnEvent(StreamInterface* stream, int events, int error);
// HttpParser Interface
virtual HttpError onHttpRecvLeader(const char* line, size_t len);
virtual HttpError onHttpRecvHeader(const char* name, size_t nlen,
const char* value, size_t vlen);
virtual HttpError onHttpRecvHeaderComplete(bool chunked, size_t& data_size);
virtual HttpError onHttpRecvData(const char* data, size_t len, size_t& read);
virtual void onHttpRecvComplete(HttpError err);
private:
enum { kBufferSize = 32 * 1024 };
HttpMode mode_;
HttpData* data_;
IHttpNotify* notify_;
StreamInterface* stream_;
char buffer_[kBufferSize];
size_t len_;
bool ignore_data_, chunk_data_;
HttpData::const_iterator header_;
};
//////////////////////////////////////////////////////////////////////
} // namespace talk_base
#endif // TALK_BASE_HTTPBASE_H__
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