/*

* HTTP utilities

* (C) 2013 Jack Lloyd

*

* Botan is released under the Simplified BSD License (see license.txt)

*/

#ifndef BOTAN_UTILS_URLGET_H_

#define BOTAN_UTILS_URLGET_H_

#include <botan/types.h>

#include <botan/exceptn.h>

#include <vector>

#include <map>

#include <string>

#include <functional>

#include <chrono>

BOTAN_FUTURE_INTERNAL_HEADER(http_util.h)

namespace Botan {

namespace HTTP {

/**

* HTTP_Error Exception

*/

class BOTAN_PUBLIC_API(2,0) HTTP_Error final : public Exception

   {

   public:

      explicit HTTP_Error(const std::string& msg) :

         Exception("HTTP error " + msg)

         {}

      ErrorType error_type() const noexcept override { return ErrorType::HttpError; }

   };

class Response final

   {

   public:

      Response() : m_status_code(0), m_status_message("Uninitialized") {}

      Response(unsigned int status_code, const std::string& status_message,

               const std::vector<uint8_t>& body,

               const std::map<std::string, std::string>& headers) :

         m_status_code(status_code),

         m_status_message(status_message),

         m_body(body),

         m_headers(headers) {}

      unsigned int status_code() const { return m_status_code; }

      const std::vector<uint8_t>& body() const { return m_body; }

      const std::map<std::string, std::string>& headers() const { return m_headers; }

      std::string status_message() const { return m_status_message; }

      void throw_unless_ok()

         {

         if(status_code() != 200)

            throw HTTP_Error(status_message());

         }

   private:

      unsigned int m_status_code;

      std::string m_status_message;

      std::vector<uint8_t> m_body;

      std::map<std::string, std::string> m_headers;

   };

BOTAN_PUBLIC_API(2,0) std::ostream& operator<<(std::ostream& o, const Response& resp);

typedef std::function<std::string (const std::string&, const std::string&, const std::string&)> http_exch_fn;

BOTAN_PUBLIC_API(2,0) Response http_sync(http_exch_fn fn,

                                         const std::string& verb,

                                         const std::string& url,

                                         const std::string& content_type,

                                         const std::vector<uint8_t>& body,

                                         size_t allowable_redirects);

BOTAN_PUBLIC_API(2,0) Response http_sync(const std::string& verb,

                                         const std::string& url,

                                         const std::string& content_type,

                                         const std::vector<uint8_t>& body,

                                         size_t allowable_redirects,

                                         std::chrono::milliseconds timeout = std::chrono::milliseconds(3000));

BOTAN_PUBLIC_API(2,0) Response GET_sync(const std::string& url,

                                        size_t allowable_redirects = 1,

                                        std::chrono::milliseconds timeout = std::chrono::milliseconds(3000));

BOTAN_PUBLIC_API(2,0) Response POST_sync(const std::string& url,

                                         const std::string& content_type,

                                         const std::vector<uint8_t>& body,

                                         size_t allowable_redirects = 1,

                                         std::chrono::milliseconds timeout = std::chrono::milliseconds(3000));

BOTAN_PUBLIC_API(2,0) std::string url_encode(const std::string& url);

}

}

#endif