ModSecurity/src/utils/https_client.cc
2015-12-10 13:20:32 -03:00

116 lines
3.1 KiB
C++

/*
* ModSecurity, http://www.modsecurity.org/
* Copyright (c) 2015 Trustwave Holdings, Inc. (http://www.trustwave.com/)
*
* 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
*
* If any of the files related to licensing are missing or if you have any
* other questions related to licensing please contact Trustwave Holdings, Inc.
* directly using the email address security@modsecurity.org.
*
*/
#include "utils/https_client.h"
#include "src/config.h"
#ifdef MSC_WITH_CURL
#include <curl/curl.h>
#endif
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string>
#include <fstream>
#include <iostream>
#include "modsecurity/modsecurity.h"
#include "src/unique_id.h"
namespace modsecurity {
namespace Utils {
size_t HttpsClient::handle(char * data, size_t size, size_t nmemb, void * p) {
return static_cast<HttpsClient*>(p)->handle_impl(data, size, nmemb);
}
size_t HttpsClient::handle_impl(char* data, size_t size, size_t nmemb) {
content.append(data, size * nmemb);
return size * nmemb;
}
void HttpsClient::setKey(const std::string& key) {
m_key = "ModSec-key: " + key;
}
#ifdef MSC_WITH_CURL
bool HttpsClient::download(const std::string &uri) {
CURL *curl;
CURLcode res;
std::string uniqueId = "ModSec-unique-id: " + UniqueId::uniqueId();
std::string status = "ModSec-status: " MODSECURITY_VERSION_NUM;
curl = curl_easy_init();
if (!curl) {
error = "Not able to initialize libcurl";
return false;
}
struct curl_slist *headers_chunk = NULL;
curl_easy_setopt(curl, CURLOPT_URL, uri.c_str());
headers_chunk = curl_slist_append(headers_chunk, uniqueId.c_str());
headers_chunk = curl_slist_append(headers_chunk, status.c_str());
if (m_key.empty() == false) {
headers_chunk = curl_slist_append(headers_chunk, m_key.c_str());
}
/* Make it TLS 1.x only. */
curl_easy_setopt(curl, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
/* those are the default options, but lets make sure */
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 1);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 1);
/* send all data to this function */
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &HttpsClient::handle);
/* we pass our 'chunk' struct to the callback function */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, this);
curl_easy_setopt(curl, CURLOPT_USERAGENT, "modesecurity3");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers_chunk);
/* We want Curl to return error in case there is an HTTP error code */
curl_easy_setopt(curl, CURLOPT_FAILONERROR, 1);
res = curl_easy_perform(curl);
curl_slist_free_all(headers_chunk);
if (res != CURLE_OK) {
error = curl_easy_strerror(res);
}
curl_easy_cleanup(curl);
return res == CURLE_OK;
}
#else
bool HttpsClient::download(const std::string &uri) {
error = "Not compiled with libcurl support";
return false;
}
#endif
} // namespace Utils
} // namespace modsecurity