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#include "http.hpp"
#include <utility>
// #define USE_LOCAL_PROXY
namespace http {
request::request(EMethod method, std::string url)
: m_url(std::move(url)) {
switch (method) {
case REQUEST_GET:
m_method = "GET";
break;
case REQUEST_POST:
m_method = "POST";
break;
case REQUEST_PATCH:
m_method = "PATCH";
break;
case REQUEST_PUT:
m_method = "PUT";
break;
case REQUEST_DELETE:
m_method = "DELETE";
break;
default:
m_method = "GET";
break;
}
prepare();
}
request::request(request &&other) noexcept
: m_curl(std::exchange(other.m_curl, nullptr))
, m_url(std::exchange(other.m_url, ""))
, m_method(std::exchange(other.m_method, nullptr))
, m_header_list(std::exchange(other.m_header_list, nullptr))
, m_error_buf(other.m_error_buf)
, m_form(std::exchange(other.m_form, nullptr))
, m_read_streams(std::move(other.m_read_streams))
, m_progress_callback(std::move(other.m_progress_callback)) {
if (m_progress_callback) {
curl_easy_setopt(m_curl, CURLOPT_XFERINFODATA, this);
}
}
request::~request() {
if (m_curl != nullptr)
curl_easy_cleanup(m_curl);
if (m_header_list != nullptr)
curl_slist_free_all(m_header_list);
if (m_form != nullptr)
curl_mime_free(m_form);
}
const std::string &request::get_url() const {
return m_url;
}
const char *request::get_method() const {
return m_method;
}
size_t http_req_xferinfofunc(void *clientp, curl_off_t dltotal, curl_off_t dlnow, curl_off_t ultotal, curl_off_t ulnow) {
if (ultotal > 0) {
auto *req = reinterpret_cast<request *>(clientp);
req->m_progress_callback(ultotal, ulnow);
}
return 0;
}
void request::set_progress_callback(std::function<void(curl_off_t, curl_off_t)> func) {
m_progress_callback = std::move(func);
curl_easy_setopt(m_curl, CURLOPT_NOPROGRESS, 0L);
curl_easy_setopt(m_curl, CURLOPT_XFERINFOFUNCTION, http_req_xferinfofunc);
curl_easy_setopt(m_curl, CURLOPT_XFERINFODATA, this);
}
void request::set_verify_ssl(bool verify) {
curl_easy_setopt(m_curl, CURLOPT_SSL_VERIFYPEER, verify ? 1L : 0L);
}
void request::set_proxy(const std::string &proxy) {
curl_easy_setopt(m_curl, CURLOPT_PROXY, proxy.c_str());
}
void request::set_header(const std::string &name, const std::string &value) {
m_header_list = curl_slist_append(m_header_list, (name + ": " + value).c_str());
}
void request::set_body(const std::string &data) {
curl_easy_setopt(m_curl, CURLOPT_COPYPOSTFIELDS, data.c_str());
}
void request::set_user_agent(const std::string &data) {
curl_easy_setopt(m_curl, CURLOPT_USERAGENT, data.c_str());
}
CURL *request::get_curl() {
return m_curl;
}
void request::make_form() {
m_form = curl_mime_init(m_curl);
}
static size_t http_readfunc(char *buffer, size_t size, size_t nitems, void *arg) {
auto stream = Glib::wrap(G_FILE_INPUT_STREAM(arg), true);
int r = stream->read(buffer, size * nitems);
if (r == -1) {
// https://github.com/curl/curl/blob/ad9bc5976d6661cd5b03ebc379313bf657701c14/lib/mime.c#L724
return size_t(-1);
}
return r;
}
// file must exist until request completes
void request::add_file(std::string_view name, const Glib::RefPtr<Gio::File> &file, std::string_view filename) {
if (!file->query_exists()) return;
auto *field = curl_mime_addpart(m_form);
curl_mime_name(field, name.data());
auto info = file->query_info();
auto stream = file->read();
curl_mime_data_cb(field, info->get_size(), http_readfunc, nullptr, nullptr, stream->gobj());
curl_mime_filename(field, filename.data());
// hold ref
m_read_streams.insert(stream);
}
// copied
void request::add_field(std::string_view name, const char *data, size_t size) {
auto *field = curl_mime_addpart(m_form);
curl_mime_name(field, name.data());
curl_mime_data(field, data, size);
}
response request::execute() {
if (m_curl == nullptr) {
auto response = detail::make_response(m_url, EStatusCode::ClientErrorCURLInit);
response.error_string = "curl pointer is null";
}
detail::check_init();
std::string str;
#ifdef USE_LOCAL_PROXY
set_proxy("http://127.0.0.1:8888");
set_verify_ssl(false);
#endif
curl_easy_setopt(m_curl, CURLOPT_NOSIGNAL, 1L);
curl_easy_setopt(m_curl, CURLOPT_CUSTOMREQUEST, m_method);
curl_easy_setopt(m_curl, CURLOPT_URL, m_url.c_str());
curl_easy_setopt(m_curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(m_curl, CURLOPT_WRITEFUNCTION, detail::curl_write_data_callback);
curl_easy_setopt(m_curl, CURLOPT_WRITEDATA, &str);
curl_easy_setopt(m_curl, CURLOPT_ERRORBUFFER, m_error_buf);
m_error_buf[0] = '\0';
if (m_header_list != nullptr)
curl_easy_setopt(m_curl, CURLOPT_HTTPHEADER, m_header_list);
if (m_form != nullptr)
curl_easy_setopt(m_curl, CURLOPT_MIMEPOST, m_form);
CURLcode result = curl_easy_perform(m_curl);
if (result != CURLE_OK) {
auto response = detail::make_response(m_url, EStatusCode::ClientErrorCURLPerform);
response.error_string = curl_easy_strerror(result);
response.error_string += " " + std::string(m_error_buf.data());
return response;
}
long response_code = 0;
curl_easy_getinfo(m_curl, CURLINFO_RESPONSE_CODE, &response_code);
auto response = detail::make_response(m_url, response_code);
response.text = str;
return response;
}
void request::prepare() {
m_curl = curl_easy_init();
}
namespace detail {
size_t curl_write_data_callback(void *ptr, size_t size, size_t nmemb, void *userdata) {
const size_t n = size * nmemb;
static_cast<std::string *>(userdata)->append(static_cast<char *>(ptr), n);
return n;
}
response make_response(const std::string &url, int code) {
response r;
r.url = url;
r.status_code = static_cast<EStatusCode>(code);
if (code < http::EStatusCode::ClientErrorMax)
r.error = true;
return r;
}
void check_init() {
static bool initialized = false;
if (!initialized) {
curl_global_init(CURL_GLOBAL_ALL);
initialized = true;
}
}
} // namespace detail
} // namespace http
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