std::string request(http::client &client, http::method method, const std::string &userPath)
{
CURLcode code;
char buf[http::MAX_URL_LEN + 1] = {0};
struct curl_slist *headers = NULL;
CURL *curl = NULL;
std::string path = userPath;
net::uri uri = client.uri();
std::string content = client.content();
std::string response;
curl = curl_easy_init();
if (curl == NULL) {
throw socket_exception("unable to initialize curl request");
}
// check if a path was specified
if (path.empty()) {
path = uri.full_path();
}
if (path.empty()) {
snprintf(buf, http::MAX_URL_LEN, "%s://%s", uri.scheme().c_str(), uri.host_with_port().c_str());
} else if (path[0] == '/') {
snprintf(buf, http::MAX_URL_LEN, "%s://%s%s", uri.scheme().c_str(),
uri.host_with_port().c_str(), path.c_str());
} else {
snprintf(buf, http::MAX_URL_LEN, "%s://%s/%s", uri.scheme().c_str(),
uri.host_with_port().c_str(), path.c_str());
}
helper::curl_set_opt(curl, CURLOPT_URL, buf);
helper::curl_set_opt_fun(curl, CURLOPT_WRITEFUNCTION, helper::curl_append_response_callback);
helper::curl_set_opt_num(curl, CURLOPT_HEADER, 1L);
#ifdef DEBUG
helper::curl_set_opt_num(curl, CURLOPT_VERBOSE, 1L);
#endif
switch (method) {
case http::GET:
helper::curl_set_opt_num(curl, CURLOPT_HTTPGET, 1L);
break;
case http::POST:
helper::curl_set_opt_num(curl, CURLOPT_POST, 1L);
if (!content.empty()) {
helper::curl_set_opt(curl, CURLOPT_POSTFIELDS, content.c_str());
helper::curl_set_opt_num(curl, CURLOPT_POSTFIELDSIZE, content.size());
}
break;
case http::PUT:
helper::curl_set_opt_num(curl, CURLOPT_PUT, 1L);
if (!content.empty()) {
helper::curl_set_opt(curl, CURLOPT_POSTFIELDS, content.c_str());
helper::curl_set_opt_num(curl, CURLOPT_POSTFIELDSIZE, content.size());
}
break;
default:
helper::curl_set_opt(curl, CURLOPT_CUSTOMREQUEST, http::method_names[method]);
break;
}
for (auto &h : client.headers()) {
snprintf(buf, http::MAX_URL_LEN, "%s: %s", h.first.c_str(), h.second.c_str());
headers = curl_slist_append(headers, buf);
}
helper::curl_set_opt(curl, CURLOPT_HTTPHEADER, headers);
helper::curl_set_opt_num(curl, CURLOPT_TIMEOUT, client.timeout());
helper::curl_set_opt(curl, CURLOPT_WRITEDATA, &response);
CURLcode res = curl_easy_perform(curl);
curl_slist_free_all(headers);
if (res != CURLE_OK && res != CURLE_PARTIAL_FILE) {
curl_easy_cleanup(curl);
throw socket_exception(curl_easy_strerror(res));
}
curl_easy_cleanup(curl);
return response;
}
