social-butterfly/dist/salmon.js

Incorporate federated social network protocols easily. Used with Hello, world federated blog.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.send = send;
exports.default = void 0;

var _activitystreams = require("./activitystreams");

var _nodeFetch = _interopRequireDefault(require("node-fetch"));

var _discover_user = require("./discover_user");

var _magicSignatures = _interopRequireDefault(require("magic-signatures"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

async function send(req, userRemote, contentOwner, data) {
  data = JSON.stringify(data);

  const body = _magicSignatures.default.sign({
    data,
    data_type: 'application/ld+json'
  }, contentOwner.private_key);

  body.sigs[0].value = _magicSignatures.default.btob64u(body.sigs[0].value);
  await (0, _nodeFetch.default)(userRemote.salmon_url, {
    method: 'POST',
    body: JSON.stringify(body),
    headers: {
      'Content-Type': 'application/magic-envelope+json'
    }
  });
}

var _default = options => async (req, res) => {
  if (!req.query.resource) {
    return res.sendStatus(400);
  }

  const user = await options.getLocalUser(req.query.resource, req);

  if (!user) {
    return res.sendStatus(404);
  }

  const activityPubJSON = JSON.parse(_magicSignatures.default.b64utob(req.body.data).toString('utf8'));
  const userRemote = await (0, _activitystreams.findUserRemote)(options, activityPubJSON, res, user);

  if (!userRemote) {
    console.log('salmon fail: ', activityPubJSON);
    return res.sendStatus(401);
  }

  try {
    _magicSignatures.default.verify(req.body, userRemote.magic_key);
  } catch (ex) {
    return res.sendStatus(401);
  }

  await (0, _activitystreams.handle)(activityPubJSON.type, options, req, res, activityPubJSON, user, userRemote);
  res.sendStatus(204);
};

exports.default = _default;