PEBLHTTP.h

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//* -*- mode:C++; tab-width:4; c-basic-offset:4; indent-tabs-mode:nil -*- */
//    Name:       utility/PEBLHTTP.h
//    Purpose:    Class enabling HTTP GET and POST commands.
//    Author:     Shane T. Mueller, Ph.D.
//    Copyright:  (c) 2013-2026 Shane T. Mueller <smueller@obereed.net>
//    License:    GPL 2
//
//
//
//     This file is part of the PEBL project.
//
//    PEBL is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    PEBL 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 General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with PEBL; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#ifndef __PEBLHTTP_H__
#define __PEBLHTTP_H__
 
 
#define PEBL_HAPPY 1
#define PEBL_CURL 2
#define PEBL_FETCH 3
 
// HTTP_LIB is defined in the Makefile via compiler flags:
// -DHTTP_LIB=2 (PEBL_CURL) for Linux native builds
// -DHTTP_LIB=3 (PEBL_FETCH) for Emscripten builds
// Do not redefine it here to avoid macro redefinition warnings
 
 
#ifdef PEBL_HTTP
 
#if HTTP_LIB == PEBL_HAPPY
#include "happyhttp.h"
#elif HTTP_LIB == PEBL_CURL
#include <curl/curl.h>
#endif
 
#include "../base/Variant.h"
#include <iostream>
#include <stdlib.h>
#include <cstdio>
#include <cstring>
 
 
// This uses a simple http library called 'happyhttp'
// it is a slim wrapper around that, but we abstract from.
// aLSO , this should enable using PEBLPaths, PErrors, and such.
// the library to maybe someday use curl or the wget commands
// in emscripten.
 
class PEBLHTTP
{
 
public:
    PEBLHTTP(Variant host,int port=80);  //with no port, default to 80
    virtual ~PEBLHTTP();
 
    virtual int GetHTTPFile(Variant fname, Variant savename);
    virtual std::string GetHTTPText(Variant fname);
 
    //  virtual int PostHTTPold(Variant name, Variant headers,Variant body); //original; for posterity.
    virtual Variant PostHTTP(Variant name, Variant args,
                             Variant body);
    virtual Variant PostMulti(Variant pagename, Variant args,
                               Variant uploadname,Variant name);
 
    virtual FILE * GetFileObject(){return mFile;};
    virtual std::string  * GetTextObject(){return &mText;};
 
    virtual void SetByteCount(int n){mByteCount = n;}
    virtual  int GetByteCount(){return mByteCount;};
 
    virtual void SetStatus(int status){mStatus= status;};
    virtual int GetStatus(){return mStatus;};
 
    virtual  void SetReason(std::string reason){mReason = reason;};
 
 
    FILE*  mFile; //file to stream to.
 
 
 
 private:
    int mStatus;  //http status number
    std::string mReason;
 
    std::string mText;
    Variant mHost;
    int mPort;
 
 
#if HTTP_LIB == PEBL_CURL
    CURL * mCurl;
#endif
 
 
    Variant mFileName;
    Variant mSaveName;
 
 
 
    int mByteCount;
};
#endif
#endif