request.cpp

/* API Request.
 *
 * Author: Steffen Vogel <post@steffenvogel.de>
 * SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
 * SPDX-License-Identifier: Apache-2.0
 */

#include <villas/api.hpp>
#include <villas/api/request.hpp>
#include <villas/plugin.hpp>

using namespace villas;
using namespace villas::node::api;

void Request::decode() {
  body = buffer.decode();
  if (!body)
    throw Error::badRequest(nullptr, "Failed to decode request payload");
}

std::string Request::toString() {
  return fmt::format("endpoint={}, method={}", factory->getName(),
                     Session::methodToString(method));
}

Request *RequestFactory::create(Session *s, const std::string &uri,
                                Session::Method meth, unsigned long ct) {
  s->logger->debug("Lookup request handler for: uri={}", uri);

  for (auto *rf : plugin::registry->lookup<RequestFactory>()) {
    std::smatch mr;
    if (not rf->match(uri, mr))
      continue;

    auto *p = rf->make(s);

    for (auto m : mr)
      p->matches.push_back(m.str());

    p->factory = rf;
    p->method = meth;
    p->contentLength = ct;

    p->prepare();

    return p;
  }

  throw Error::badRequest(json_pack("{ s: s, s: s }", "uri", uri.c_str(),
                                    "method",
                                    Session::methodToString(meth).c_str()),
                          "Unknown API request");
}