HttpConnect.h

/*
╔══════════════════════════════════════════════════════════════════════════════╗
║                       SIMPLY POWERFUL TOOLKIT (SPTK)                         ║
╟──────────────────────────────────────────────────────────────────────────────╢
║  copyright            © 1999-2022 Alexey Parshin. All rights reserved.       ║
║  email                alexeyp@gmail.com                                      ║
╚══════════════════════════════════════════════════════════════════════════════╝
┌──────────────────────────────────────────────────────────────────────────────┐
│   This library is free software; you can redistribute it and/or modify it    │
│   under the terms of the GNU Library General Public License as published by  │
│   the Free Software Foundation; either version 2 of the License, or (at your │
│   option) any later version.                                                 │
│                                                                              │
│   This library is distributed in the hope that it will be useful, but        │
│   WITHOUT ANY WARRANTY; without even the implied warranty of                 │
│   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library   │
│   General Public License for more details.                                   │
│                                                                              │
│   You should have received a copy of the GNU Library General Public License  │
│   along with this library; if not, write to the Free Software Foundation,    │
│   Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.               │
│                                                                              │
│   Please report all bugs and problems to alexeyp@gmail.com.                  │
└──────────────────────────────────────────────────────────────────────────────┘
*/
 
#pragma once
 
#include <memory>
#include <sptk5/RegularExpression.h>
#include <sptk5/Strings.h>
#include <sptk5/net/HttpParams.h>
#include <sptk5/net/HttpReader.h>
#include <sptk5/net/TCPSocket.h>
 
namespace sptk {
 
class SP_EXPORT HttpConnect
{
public:
    class Authorization
    {
    public:
        Authorization(const Authorization& other) = default;
 
        Authorization& operator=(const Authorization& other) = default;
 
        String method() const
        {
            return m_method;
        }
 
        String value() const
        {
            return m_value;
        }
 
    protected:
        Authorization() = delete;
 
        explicit Authorization(const String& method, const String& username, const String& password, const String& jwtToken);
 
    private:
        String m_method; 
        String m_value;  
    };
 
    class BasicAuthorization : public Authorization
    {
    public:
        BasicAuthorization(const String& username, const String& password)
            : Authorization("basic", username, password, "")
        {
        }
    };
 
    class BearerAuthorization : public Authorization
    {
    public:
        explicit BearerAuthorization(const String& jwtToken)
            : Authorization("bearer", "", "", jwtToken)
        {
        }
    };
 
    explicit HttpConnect(TCPSocket& socket);
 
    HttpHeaders& requestHeaders()
    {
        return m_requestHeaders;
    }
 
    [[nodiscard]] const HttpHeaders& responseHeaders() const
    {
        return m_reader->getHttpHeaders();
    }
 
    [[nodiscard]] int cmd_get(const String& pageName, const HttpParams& parameters, Buffer& output,
                              const Authorization* authorization = nullptr,
                              std::chrono::milliseconds timeout = std::chrono::seconds(60));
 
    [[nodiscard]] int cmd_post(const String& pageName, const HttpParams& parameters, const Buffer& content, Buffer& output,
                               const sptk::Strings& possibleContentEncodings, const Authorization* authorization = nullptr,
                               std::chrono::milliseconds timeout = std::chrono::seconds(60));
 
    [[nodiscard]] int cmd_put(const String& pageName, const HttpParams& parameters, const Buffer& content, Buffer& output,
                              const Authorization* authorization = nullptr,
                              std::chrono::milliseconds timeout = std::chrono::seconds(60));
 
    [[nodiscard]] int cmd_delete(const String& pageName, const HttpParams& parameters, Buffer& output,
                                 const Authorization* authorization = nullptr,
                                 std::chrono::milliseconds timeout = std::chrono::seconds(60));
 
    [[nodiscard]] String responseHeader(const String& headerName) const;
 
    [[nodiscard]] int statusCode() const;
 
    [[nodiscard]] String statusText() const;
 
protected:
    Strings makeHeaders(const String& httpCommand, const String& pageName, const HttpParams& requestParameters,
                        const Authorization* authorization) const;
 
    void sendCommand(const String& cmd);
 
    void sendCommand(const Buffer& cmd);
 
    int getResponse(Buffer& output, std::chrono::milliseconds timeout);
 
private:
    std::shared_ptr<HttpReader> m_reader;
 
    TCPSocket& m_socket;
 
    HttpHeaders m_requestHeaders;
};
 
} // namespace sptk