| // Copyright 2014 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef LIBCHROMEOS_CHROMEOS_HTTP_HTTP_CONNECTION_CURL_H_ |
| #define LIBCHROMEOS_CHROMEOS_HTTP_HTTP_CONNECTION_CURL_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include <base/macros.h> |
| #include <chromeos/chromeos_export.h> |
| #include <chromeos/http/http_connection.h> |
| #include <chromeos/http/http_transport_curl.h> |
| #include <curl/curl.h> |
| |
| namespace chromeos { |
| namespace http { |
| namespace curl { |
| |
| // This is a libcurl-based implementation of http::Connection. |
| class CHROMEOS_EXPORT Connection : public http::Connection { |
| public: |
| Connection(CURL* curl_handle, |
| const std::string& method, |
| const std::shared_ptr<CurlInterface>& curl_interface, |
| const std::shared_ptr<http::Transport>& transport); |
| ~Connection() override; |
| |
| // Overrides from http::Connection. |
| // See http_connection.h for description of these methods. |
| bool SendHeaders(const HeaderList& headers, |
| chromeos::ErrorPtr* error) override; |
| bool SetRequestData(std::unique_ptr<DataReaderInterface> data_reader, |
| chromeos::ErrorPtr* error) override; |
| bool FinishRequest(chromeos::ErrorPtr* error) override; |
| int FinishRequestAsync(const SuccessCallback& success_callback, |
| const ErrorCallback& error_callback) override; |
| |
| int GetResponseStatusCode() const override; |
| std::string GetResponseStatusText() const override; |
| std::string GetProtocolVersion() const override; |
| std::string GetResponseHeader(const std::string& header_name) const override; |
| uint64_t GetResponseDataSize() const override; |
| bool ReadResponseData(void* data, |
| size_t buffer_size, |
| size_t* size_read, |
| chromeos::ErrorPtr* error) override; |
| |
| protected: |
| // Write data callback. Used by CURL when receiving response data. |
| CHROMEOS_PRIVATE static size_t write_callback(char* ptr, |
| size_t size, |
| size_t num, |
| void* data); |
| // Read data callback. Used by CURL when sending request body data. |
| CHROMEOS_PRIVATE static size_t read_callback(char* ptr, |
| size_t size, |
| size_t num, |
| void* data); |
| // Write header data callback. Used by CURL when receiving response headers. |
| CHROMEOS_PRIVATE static size_t header_callback(char* ptr, |
| size_t size, |
| size_t num, |
| void* data); |
| |
| // Helper method to set up the |curl_handle_| with all the parameters |
| // pertaining to the current connection. |
| CHROMEOS_PRIVATE void PrepareRequest(); |
| |
| // HTTP request verb, such as "GET", "POST", "PUT", ... |
| std::string method_; |
| |
| // Binary data for request body. |
| std::unique_ptr<DataReaderInterface> request_data_reader_; |
| |
| // Received response data. |
| std::vector<unsigned char> response_data_; |
| size_t response_data_ptr_{0}; |
| |
| // List of optional request headers provided by the caller. |
| // After request has been sent, contains the received response headers. |
| std::multimap<std::string, std::string> headers_; |
| |
| // HTTP protocol version, such as HTTP/1.1 |
| std::string protocol_version_; |
| // Response status text, such as "OK" for 200, or "Forbidden" for 403 |
| std::string status_text_; |
| // Flag used when parsing response headers to separate the response status |
| // from the rest of response headers. |
| bool status_text_set_{false}; |
| |
| CURL* curl_handle_{nullptr}; |
| curl_slist* header_list_{nullptr}; |
| |
| std::shared_ptr<CurlInterface> curl_interface_; |
| |
| private: |
| friend class http::curl::Transport; |
| DISALLOW_COPY_AND_ASSIGN(Connection); |
| }; |
| |
| } // namespace curl |
| } // namespace http |
| } // namespace chromeos |
| |
| #endif // LIBCHROMEOS_CHROMEOS_HTTP_HTTP_CONNECTION_CURL_H_ |