root/trunk/whisperer/stream_server.h

// Copyright (c) 2009, Whispersoft s.r.l.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the name of Whispersoft s.r.l. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "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 COPYRIGHT
// OWNER OR CONTRIBUTORS 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.
//
// Author: Mihai Ianculescu

#ifndef __WHISPERER_STREAM_SERVER_H__
#define __WHISPERER_STREAM_SERVER_H__

#include <string>
#include <whisperlib/net/http/http_server_protocol.h>
#include "stream_request.h"

class StreamManager;

class StreamServer {
 public:
  StreamServer(StreamManager* manager,
               http::Server* http_server,
               const char* streaming_root);
  ~StreamServer();

 private:
  // The server stream request.
  class ServerRequest : public StreamRequest {
   public:
    explicit ServerRequest(http::ServerRequest* request) :
        request_(request), request_valid_(true) {
      CHECK_NOT_NULL(request);
    }

   protected:
    // called to boot the request after everything was set up
    virtual void Start();
    // called if the set up of the request fails
    virtual void Fail(http::HttpReturnCode result);
    // called to authenticate a request (if desired)
    virtual bool Authenticate(net::UserAuthenticator* auth) {
      return request_->AuthenticateRequest(auth);
    }



    // called from the file reader
    virtual void ReaderProcess(io::MemoryStream* inbuf);
    virtual void ReaderClose();

    // called from the server request
    void RequestProcess();
    void RequestClose();

   private:
    // the actual server request
    http::ServerRequest* request_;
    // true if the server request is valid
    bool request_valid_;
  };

  // The request create callback.
  void CreateCallback(http::ServerRequest* request);

 private:
  // The associated stream manager.
  StreamManager* manager_;

  // The HTTP server for serving the streams.
  http::Server* http_server_;
  // The URL root.
  string root_;

  DISALLOW_EVIL_CONSTRUCTORS(StreamServer);
};

#endif  //  __WHISPERER_STREAM_SERVER_H__