cadence-web/server/middleware/tchannel-client/helpers/ui-transform.js

Cadence Web UI

// Copyright (c) 2021-2024 Uber Technologies Inc.
//
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

const Long = require('long');
const moment = require('moment');

const uiTransform = item => {
  if (!item || typeof item !== 'object') {
    return item;
  }

  Object.entries(item).forEach(([subkey, subvalue]) => {
    if (subvalue && typeof subvalue.unsigned === 'boolean') {
      item[subkey] = Long.fromValue(subvalue).toNumber();
      const m = moment(item[subkey] / 1000000);

      if (m.isValid() && m.isAfter('2017-01-01')) {
        item[subkey] = m.toISOString();
      }
    } else if (Buffer.isBuffer(subvalue)) {
      if (subkey === 'nextPageToken') {
        item.nextPageToken = subvalue.toString('base64');

        return;
      }

      const stringval = subvalue.toString('utf8');

      try {
        // most of Cadence's uses of buffer is just line-delimited JSON.
        item[subkey] = stringval
          .split('\n')
          .filter(x => x)
          .map(JSON.parse);

        if (item[subkey].length === 1) {
          item[subkey] = item[subkey][0];
        }
      } catch (e) {
        item[`${subkey}_base64`] = subvalue.toString('base64');
        item[subkey] = stringval;
      }
    } else if (Array.isArray(subvalue)) {
      subvalue.forEach(uiTransform);
    } else if (subvalue && typeof subvalue === 'object') {
      uiTransform(subvalue);
    }
  });

  return item;
};

module.exports = uiTransform;