| // 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 <vector> |
| |
| #include "kudu/gutil/macros.h" |
| #include "kudu/util/monotime.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. |
| // The optional param 'headers' holds additional headers. |
| // e.g. {"Accept-Encoding: gzip"} |
| Status FetchURL(const std::string& url, |
| faststring* dst, |
| const std::vector<std::string>& headers = {}); |
| |
| // 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); |
| |
| // Set whether to verify the server's SSL certificate in the case of an HTTPS |
| // connection. |
| void set_verify_peer(bool verify) { |
| verify_peer_ = verify; |
| } |
| |
| void set_return_headers(bool v) { |
| return_headers_ = v; |
| } |
| |
| void set_timeout(MonoDelta t) { |
| timeout_ = t; |
| } |
| |
| 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, |
| const std::vector<std::string>& headers = {}); |
| CURL* curl_; |
| |
| // Whether to verify the server certificate. |
| bool verify_peer_ = true; |
| |
| // Whether to return the HTTP headers with the response. |
| bool return_headers_ = false; |
| |
| MonoDelta timeout_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EasyCurl); |
| }; |
| |
| } // namespace kudu |
| |
| #endif /* KUDU_UTIL_CURL_UTIL_H */ |