Http.hpp

//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//

#ifndef SFML_HTTP_HPP
#define SFML_HTTP_HPP

// Headers
#include <SFML/Network/Export.hpp>
#include <SFML/Network/IpAddress.hpp>
#include <SFML/Network/TcpSocket.hpp>
#include <SFML/System/NonCopyable.hpp>
#include <SFML/System/Time.hpp>
#include <map>
#include <string>


namespace sf
{
class SFML_NETWORK_API Http : NonCopyable
{
public:

    class SFML_NETWORK_API Request
    {
    public:

        enum Method
        {
            Get,   
            Post,  
            Head,  
            Put,   
            Delete 
        };

        Request(const std::string& uri = "/", Method method = Get, const std::string& body = "");

        void setField(const std::string& field, const std::string& value);

        void setMethod(Method method);

        void setUri(const std::string& uri);

        void setHttpVersion(unsigned int major, unsigned int minor);

        void setBody(const std::string& body);

    private:

        friend class Http;

        std::string prepare() const;

        bool hasField(const std::string& field) const;

        // Types
        typedef std::map<std::string, std::string> FieldTable;

        // Member data
        FieldTable   m_fields;       
        Method       m_method;       
        std::string  m_uri;          
        unsigned int m_majorVersion; 
        unsigned int m_minorVersion; 
        std::string  m_body;         
    };

    class SFML_NETWORK_API Response
    {
    public:

        enum Status
        {
            // 2xx: success
            Ok             = 200, 
            Created        = 201, 
            Accepted       = 202, 
            NoContent      = 204, 
            ResetContent   = 205, 
            PartialContent = 206, 

            // 3xx: redirection
            MultipleChoices  = 300, 
            MovedPermanently = 301, 
            MovedTemporarily = 302, 
            NotModified      = 304, 

            // 4xx: client error
            BadRequest          = 400, 
            Unauthorized        = 401, 
            Forbidden           = 403, 
            NotFound            = 404, 
            RangeNotSatisfiable = 407, 

            // 5xx: server error
            InternalServerError = 500, 
            NotImplemented      = 501, 
            BadGateway          = 502, 
            ServiceNotAvailable = 503, 
            GatewayTimeout      = 504, 
            VersionNotSupported = 505, 

            // 10xx: SFML custom codes
            InvalidResponse  = 1000, 
            ConnectionFailed = 1001  
        };

        Response();

        const std::string& getField(const std::string& field) const;

        Status getStatus() const;

        unsigned int getMajorHttpVersion() const;

        unsigned int getMinorHttpVersion() const;

        const std::string& getBody() const;

    private:

        friend class Http;

        void parse(const std::string& data);


        void parseFields(std::istream &in);

        // Types
        typedef std::map<std::string, std::string> FieldTable;

        // Member data
        FieldTable   m_fields;       
        Status       m_status;       
        unsigned int m_majorVersion; 
        unsigned int m_minorVersion; 
        std::string  m_body;         
    };

    Http();

    Http(const std::string& host, unsigned short port = 0);

    void setHost(const std::string& host, unsigned short port = 0);

    Response sendRequest(const Request& request, Time timeout = Time::Zero);

private:

    // Member data
    TcpSocket      m_connection; 
    IpAddress      m_host;       
    std::string    m_hostName;   
    unsigned short m_port;       
};

} // namespace sf


#endif // SFML_HTTP_HPP