slack_monkey_patch.js

// Copyright 2019 Extreme Networks, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

function sendMessageRaw(message) {
  /*jshint validthis:true */
  message['channel'] = this.id;
  message['parse'] = 'none';
  this._client._send(message);
}

function patchSendMessage(robot) {
  // We monkey patch sendMessage function to send "parse" argument with the message so the text is not
  // formatted and parsed on the server side.
  // NOTE / TODO: We can get rid of this nasty patch once our node-slack-client and hubot-slack pull
  // requests are merged.
  // This code was refactored in https://github.com/StackStorm/hubot-stackstorm/pull/6
  // which was opened and merged by Kami on 2015-06-04.
  // As of 2019-05-22, these were the PRs I could find for the node-slack-client
  // hubot-slack repositories:
  // * https://github.com/slackapi/node-slack-sdk/pull/42
  //   - which was closed during a refactor and converted into an issue:
  //     https://github.com/slackapi/node-slack-sdk/issues/138
  // * https://github.com/slackapi/hubot-slack/pull/544
  //   - which was opened on 2018-11-14, which seems to be too late to actually
  //     apply to this code
  // So...I'm not entirely sure this monkey patch is still necessary.
  // End-to-end testing is required to figure out for sure.
  if (robot.adapter && robot.adapter.constructor && robot.adapter.constructor.name === 'SlackBot') {
    for (var channel in robot.adapter.client.channels) {
      robot.adapter.client.channels[channel].sendMessage = sendMessageRaw.bind(robot.adapter.client.channels[channel]);
    }
  }
}


exports.patchSendMessage = patchSendMessage;