http_error.h

#ifndef SOURCEMETA_CORE_HTTP_ERROR_H_
#define SOURCEMETA_CORE_HTTP_ERROR_H_
 
#ifndef SOURCEMETA_CORE_HTTP_EXPORT
#include <sourcemeta/core/http_export.h>
#endif
 
#include <sourcemeta/core/http_method.h>
#include <sourcemeta/core/http_status.h>
 
#include <cstdint>   // std::uint16_t
#include <stdexcept> // std::runtime_error
#include <string>    // std::string
#include <utility>   // std::move
 
namespace sourcemeta::core {
 
// Exporting symbols that depends on the standard C++ library is considered
// safe.
// https://learn.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-2-c4275?view=msvc-170&redirectedfrom=MSDN
#if defined(_MSC_VER)
#pragma warning(disable : 4251 4275)
#endif

class SOURCEMETA_CORE_HTTP_EXPORT HTTPError : public std::runtime_error {
public:
  HTTPError(const HTTPMethod method, std::string url,
            const std::string &message)
      : std::runtime_error{message}, method_{method}, url_{std::move(url)} {}

  [[nodiscard]] auto method() const noexcept -> HTTPMethod {
    return this->method_;
  }

  [[nodiscard]] auto url() const noexcept -> const std::string & {
    return this->url_;
  }
 
private:
  HTTPMethod method_;
  std::string url_;
};

class SOURCEMETA_CORE_HTTP_EXPORT HTTPStatusError : public HTTPError {
public:
  HTTPStatusError(const HTTPMethod method, std::string url,
                  const HTTPStatus &status)
      : HTTPError{method, std::move(url), "Unsuccessful HTTP response"},
        code_{status.code}, phrase_{status.phrase}, wire_{status.wire} {}

  [[nodiscard]] auto status() const noexcept -> HTTPStatus {
    return {.code = this->code_, .phrase = this->phrase_, .wire = this->wire_};
  }
 
private:
  std::uint16_t code_;
  std::string phrase_;
  std::string wire_;
};
 
#if defined(_MSC_VER)
#pragma warning(default : 4251 4275)
#endif
 
} // namespace sourcemeta::core
 
#endif