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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "response.h"
#include "http_client.h"
#include <curl/curl.h>
#include <sstream>
#include <iostream>
using namespace std;
using namespace icn_httpserver;
size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream) {
((Response*) stream)->write((const char*)ptr, size * nmemb);
((Response*) stream)->send();
return size * nmemb;
}
HTTPClient::HTTPClient() {
curl_ = curl_easy_init();
}
HTTPClient::~HTTPClient() {
curl_easy_cleanup(curl_);
}
bool HTTPClient::download(const std::string& url, std::ostream& out) {
curl_easy_setopt(curl_, CURLOPT_URL, url.c_str());
/* example.com is redirected, so we tell libcurl to follow redirection */
curl_easy_setopt(curl_, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(curl_, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl_, CURLOPT_ACCEPT_ENCODING, "deflate");
curl_easy_setopt(curl_, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl_, CURLOPT_WRITEDATA, &out);
/* Perform the request, res will get the return code */
CURLcode res = curl_easy_perform(curl_);
/* Check for errors */
if (res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
return false;
}
return true;
}
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