net/instaweb/config/rewrite_options_manager.h

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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_CONFIG_REWRITE_OPTIONS_MANAGER_H_
#define NET_INSTAWEB_CONFIG_REWRITE_OPTIONS_MANAGER_H_

#include "net/instaweb/rewriter/public/rewrite_options.h"
#include "pagespeed/kernel/base/callback.h"
#include "pagespeed/kernel/base/string.h"
#include "pagespeed/kernel/http/google_url.h"
#include "pagespeed/kernel/http/request_headers.h"
#include "pagespeed/opt/http/request_context.h"


namespace net_instaweb {

class RewriteOptionsManager {
 public:
  RewriteOptionsManager() {}
  virtual ~RewriteOptionsManager() {}

  // Given the request url and request headers, generate the rewrite options.
  typedef Callback1<RewriteOptions*> OptionsCallback;
  virtual void GetRewriteOptions(const GoogleUrl& url,
                                 const RequestHeaders& headers,
                                 OptionsCallback* done);

  // Modifies the request prior to dispatch to the underlying fetcher.  Invokes
  // "done" once preparation has finished with a boolean argument
  // representing success.  "url" may be modified by PrepareRequest, but should
  // be owned by the caller.
  typedef Callback1<bool> BoolCallback;
  virtual void PrepareRequest(const RewriteOptions* rewrite_options,
                              const RequestContextPtr& request_context,
                              GoogleString* url,
                              RequestHeaders* request_headers,
                              BoolCallback* done);
};

}  // namespace net_instaweb

#endif  // NET_INSTAWEB_CONFIG_REWRITE_OPTIONS_MANAGER_H_