Simple to use http getter using libcurl

get.cpp

#include "get.hpp"

void Get_init()
{
	curl = curl_easy_init();
	if (!curl)
		throw std::runtime_error("curl_easy_init() failed");
}

static size_t WriteMemoryCallback(void *contents, size_t size, size_t nmemb,
		void *userp)
{
	size_t realsize = size * nmemb;
	GetStruct *mem = (GetStruct*)userp;

	delete [] mem->memory;
	mem->memory = new char[mem->size + realsize + 1];

	memcpy(&(mem->memory[mem->size]), contents, realsize);
	mem->size += realsize;
	mem->memory[mem->size] = 0;

	return realsize;
}

GetStruct Get(std::string uri)
{
	GetStruct chunk;
	chunk.memory = new char[1];
	chunk.size = 0;

	curl_global_init(CURL_GLOBAL_ALL);

	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
	curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void*)&chunk);
	curl_easy_setopt(curl, CURLOPT_URL, uri.c_str());
	curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);

	CURLcode res = curl_easy_perform(curl);

	if (res != CURLE_OK) {
		printf("curl_easy_perform() failed:\n");
		throw std::runtime_error(curl_easy_strerror(res));
	}

	return chunk;
}

void Get_destroy()
{
    curl_easy_cleanup(curl);
}

get.hpp

#ifndef GET_HPP
#define GET_HPP

#include <string>
#include <curl/curl.h>
#include <stdexcept>
#include <memory>
#include <cstring>

static CURL *curl;
struct GetStruct {
	char *memory;
	size_t size;
};

void Get_init();
GetStruct Get(std::string uri);
void Get_destroy();

#endif