text: // 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 KUDU_UTIL_CURL_UTIL_H
  #define KUDU_UTIL_CURL_UTIL_H
  
  #include <string>
  
  #include "kudu/gutil/macros.h"
  #include "kudu/util/status.h"
  
  typedef void CURL;
  
  namespace kudu {
  
  class faststring;
  
  // Simple wrapper around curl's "easy" interface, allowing the user to
  // fetch web pages into memory using a blocking API.
  //
  // This is not thread-safe.
  class EasyCurl {
   public:
    EasyCurl();
    ~EasyCurl();
  
    // Fetch the given URL into the provided buffer.
    // Any existing data in the buffer is replaced.
    Status FetchURL(const std::string& url,
                    faststring* dst);
  
    // Issue an HTTP POST to the given URL with the given data.
    // Returns results in 'dst' as above.
    Status PostToURL(const std::string& url,
                     const std::string& post_data,
                     faststring* dst);
  
   private:
    // Do a request. If 'post_data' is non-NULL, does a POST.
    // Otherwise, does a GET.
    Status DoRequest(const std::string& url,
                     const std::string* post_data,
                     faststring* dst);
    CURL* curl_;
    DISALLOW_COPY_AND_ASSIGN(EasyCurl);
  };
  
  } // namespace kudu
  
  #endif /* KUDU_UTIL_CURL_UTIL_H */
  