Add gateway functionality

TriviaBot/bot/http/HTTPHelper.cpp

@@ -0,0 +1,44 @@
+#include "HTTPHelper.hpp"
+
+size_t HTTPHelper::data_write(void* buf, size_t size, size_t nmemb, void* userp) {
+	if (userp) {
+		std::ostream& os = *static_cast<std::ostream*>(userp);
+		std::streamsize len = size * nmemb;
+		if (os.write(static_cast<char*>(buf), len)) {
+			return len;
+		}
+	}
+
+	return 0;
+}
+
+CURLcode HTTPHelper::curl_read(const std::string& url, std::ostream& os, long timeout = 30) {
+	CURLcode code(CURLE_FAILED_INIT);
+	CURL* curl = curl_easy_init();
+
+	if (curl) {
+		if (CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &data_write))
+			&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1L))
+			&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L))
+			&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_FILE, &os))
+			&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_TIMEOUT, timeout))
+			&& CURLE_OK == (code = curl_easy_setopt(curl, CURLOPT_URL, url.c_str()))) {
+			code = curl_easy_perform(curl);
+		}
+		curl_easy_cleanup(curl);
+	}
+	return code;
+}
+
+std::string HTTPHelper::read_url(std::string url) {
+	std::ostringstream oss;
+	std::string html = "ERROR";
+	if (CURLE_OK == curl_read("http://www.google.co.uk/", oss)) {
+		html = oss.str();
+	}
+	else {
+		std::cout << "CURL error" << std::endl;
+	}
+
+	return html;
+}

TriviaBot/bot/http/HTTPHelper.hpp

@@ -0,0 +1,14 @@
+#include <curl/curl.h>
+#include <fstream>
+#include <sstream>
+#include <iostream>
+
+// callback function writes data to a std::ostream
+class HTTPHelper {
+public:
+	static std::string read_url(std::string url);
+
+private:
+	static size_t data_write(void* buf, size_t size, size_t nmemb, void* userp);
+	static CURLcode curl_read(const std::string& url, std::ostream& os, long timeout);
+};