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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 "http_client_tcp.h"
#include "response.h"
#include <curl/curl.h>
#include <sstream>
#include <iostream>
#include <string.h>
#include <stdio.h>
using namespace std;
struct UserData {
void * out;
void * curl;
bool tcp;
bool first_time;
};
typedef struct UserData UserData;
size_t write_data(void *ptr, size_t size, size_t nmemb, void *user_data) {
UserData *data = (UserData *) user_data;
if(data->tcp && data->first_time) {
double cl;
int res = curl_easy_getinfo(data->curl, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &cl);
if(res >= 0){
*(ostream *)data->out << "HTTP/1.0 200 OK\r\nContent-Length: " << std::size_t(cl) << "\r\n\r\n";
}
data->first_time = false;
}
((icn_httpserver::Response*) data->out)->write((const char*)ptr, size * nmemb);
// ((icn_httpserver::Response*) data->out)->send();
return size * nmemb;
}
HTTPClientTcp::HTTPClientTcp() {
tcp_ = false;
first_time = true;
curl_ = curl_easy_init();
}
void HTTPClientTcp::setTcp() {
tcp_ = true;
}
HTTPClientTcp::~HTTPClientTcp() {
curl_easy_cleanup(curl_);
}
bool HTTPClientTcp::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);
UserData data;
data.out = &out;
data.curl = curl_;
data.tcp = tcp_;
data.first_time = first_time;
curl_easy_setopt(curl_, CURLOPT_WRITEDATA, &data);
/* 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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