void HttpServerLog::Append(rs::httpserver::socket_ptr socket, rs::httpserver::request_ptr request, rs::httpserver::response_ptr response, const std::time_t& start, long duration) {
int year, month, day, hour, min, sec;
GetTimestamp(start, year, month, day, hour, min, sec);
const auto queryString = request->getHeaders()->getQueryString();
const auto localAddr = socket->getLocalEndpoint().address().to_string();
const auto remoteAddr = socket->getRemoteEndpoint().address().to_string();
auto index = writeRowIndex++;
index %= maxLogRows;
// TODO: optimize the string formatting to reduce ad-hoc allocations and re-use already known string values (dates, etc.)
logRows[index].status = response->getStatusCode();
std::snprintf(logRows[index].data, sizeof(logRows[0].data),
"%04d-%02d-%02d %02d:%02d:%02dZ %s %s %s %s %u %s %s %d %u",
year, month, day, hour, min, sec,
localAddr.c_str(),
request->getMethod().c_str(),
request->getUri().c_str(),
queryString.size() > 0 ? queryString.c_str() : "-",
socket->getLocalEndpoint().port(),
remoteAddr.c_str(),
boost::replace_all_copy(request->getHeaders()->getUserAgent(), " ", "+").c_str(),
response->getStatusCode(),
duration);
}
void HttpServer::HandleUtilsRequest(rs::httpserver::request_ptr request, rs::httpserver::response_ptr response) {
auto uri = request->getUri();
if (uri == "/_utils" || uri == "/_utils/") {
response->Redirect("/_utils/index.html");
} else {
auto contentType = rs::httpserver::MimeTypes::GetType(uri);
if (contentType) {
uri = "www" + uri;
rs::httpserver::FileStream stream(uri);
if (stream) {
auto lastModifiedTime = stream.getLastModifiedTime();
if (lastModifiedTime) {
auto etag = boost::lexical_cast<std::string>(lastModifiedTime.get());
if (etag == request->getIfNoneMatch()) {
response->setStatusCode(304).setStatusDescription("Not Modified").Send();
} else {
response->setETag(etag);
}
}
if (!response->HasResponded()) {
response->setContentType(contentType.get()).Send(stream);
}
}
}
}
}
void RestServer::RouteRequest(rs::httpserver::socket_ptr, rs::httpserver::request_ptr request, rs::httpserver::response_ptr response) {
router_.Match(request, response);
if (!response->HasResponded()) {
response->setContentType(ContentTypes::textPlain).setStatusCode(404).setStatusDescription("Not Found").Send(R"({"error":"not_found","reason":"no_db_file"})");
}
}
bool RestServer::GetActiveTasks(rs::httpserver::request_ptr request, const rs::httpserver::RequestRouter::CallbackArgs&, rs::httpserver::response_ptr response) {
response->setContentType(ContentTypes::applicationJson).Send("[]");
return true;
}
bool RestServer::GetSession(rs::httpserver::request_ptr request, const rs::httpserver::RequestRouter::CallbackArgs&, rs::httpserver::response_ptr response) {
response->setContentType(ContentTypes::applicationJson).Send(R"({"ok":true,"userCtx":{"name":null,"roles":["_admin"]},"info":{"authentication_db":"_users","authentication_handlers":["oauth","cookie","default"],"authenticated":"default"}})");
return true;
}
bool RestServer::GetAllDbs(rs::httpserver::request_ptr request, const rs::httpserver::RequestRouter::CallbackArgs&, rs::httpserver::response_ptr response) {
auto dbs = databases_.GetDatabases();
JsonStream stream{JsonStream::ContextType::Array};
for (int i = 0; i < dbs.size(); ++i) {
stream.Append(dbs[i]);
}
response->setContentType(ContentTypes::applicationJson).Send(stream.Flush());
return true;
}
void HttpServer::RequestCallback(rs::httpserver::socket_ptr socket, rs::httpserver::request_ptr request, rs::httpserver::response_ptr response) {
auto start = boost::chrono::system_clock::now();
try {
if (request->getUri().find("/_utils") == 0) {
HandleUtilsRequest(request, response);
if (!response->HasResponded()) {
response->setStatusCode(404).setStatusDescription("Not Found").Send();
}
} else {
rest_.RouteRequest(socket, request, response);
}
} catch (const HttpServerException& ex) {
if (!response->HasResponded()) {
try {
response->setContentType(ex.ContentType()).setStatusCode(ex.StatusCode()).setStatusDescription(ex.Description()).Send(ex.Body());
} catch (...) {}
}
} catch (const boost::exception& ex) {
if (!response->HasResponded()) {
InternalErrorResponse(socket, request, response);
}
} catch (const std::exception& ex) {
if (!response->HasResponded()) {
InternalErrorResponse(socket, request, response);
}
}
if (response->HasResponded()) {
auto duration = boost::chrono::system_clock::now() - start;
auto durationMS = boost::chrono::duration_cast<boost::chrono::milliseconds>(duration);
HttpServerLog::Append(socket, request, response, boost::chrono::system_clock::to_time_t(start), durationMS.count());
}
}
void HttpServer::InternalErrorResponse(rs::httpserver::socket_ptr socket, rs::httpserver::request_ptr request, rs::httpserver::response_ptr response) noexcept {
try {
response->setContentType("text/plain").setStatusCode(500).setStatusDescription("Internal Server Error").Send();
} catch (...) {}
}
