url_async_fetcher.h

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/*
 * Copyright 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http:///www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


#ifndef NET_INSTAWEB_HTTP_PUBLIC_URL_ASYNC_FETCHER_H_
#define NET_INSTAWEB_HTTP_PUBLIC_URL_ASYNC_FETCHER_H_

#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/string.h"

namespace net_instaweb {

class AsyncFetch;
class MessageHandler;

class UrlAsyncFetcher {
 public:
  static const int64 kUnspecifiedTimeout;

  virtual ~UrlAsyncFetcher();

  virtual void Fetch(const GoogleString& url,
                     MessageHandler* message_handler,
                     AsyncFetch* fetch) = 0;

  virtual bool SupportsHttps() const { return true; }

  virtual int64 timeout_ms() { return kUnspecifiedTimeout; }

  virtual void ShutDown();

  void set_fetch_with_gzip(bool x) { fetch_with_gzip_ = x; }
  bool fetch_with_gzip() const { return fetch_with_gzip_; }

  AsyncFetch* EnableInflation(AsyncFetch* fetch) const;

 protected:
  UrlAsyncFetcher() : fetch_with_gzip_(false) {}

 private:
  bool fetch_with_gzip_;

  
};

}  

#endif