TestRail notification to Slack

TestRail-Slack-bot.rb

require 'slack-ruby-client' # You will need to install the slack-ruby-client gem
require 'faye/websocket' # you will need to install the faye-websocket gem
require 'midi-smtp-server' # you will need to install the midi-smtp-server gem
require 'mail' # you will need to install the mail gem
class TestRailInterceptor < MidiSmtpServer::Smtpd

  Slack.configure do |config|
    config.token = ENV['SLACK_API_TOKEN'] # this in an environment variable and add in your Slack Api token for the bot desired
  end

  def start
    @slack_bot = Slack::Web::Client.new
    super
  end

  # Gather the incoming web data
  def on_message_data_event(ctx)

    mail = Mail.read_from_string(ctx[:message][:data]) # process the data to mail object
    email_body = mail.body.decoded # grab the email body
    url_to_assignment =  email_body.strip.split("\n").select {|element| element =~ /index.php?/im } # extract the testrail url for the assignment

    @slack_bot.users_list.to_hash['members'].each do |user| # iterate over the user list
      if mail.to.include? user['profile']['email'] # select all destination users
        @slack_bot.chat_postMessage(channel: user['id'], text: "#{mail.subject}! #{url_to_assignment.join(',')}", as_user: true) # send them the message about the assignment
      end
    end

    send_email_to_user(mail) # pass the email along to the actial mail server

    # Output for debug
    logger.debug("[#{ctx[:envelope][:from]}] for recipient(s): [#{ctx[:envelope][:to]}]...")

    # Just decode message ones to make sure, that this message ist readable
    @mail = Mail.read_from_string(ctx[:message][:data])

    # handle incoming mail, just show the message source
    logger.debug(@mail.to_s)
  end

  def send_email_to_user(mail)  # Absolutely change the address to point to your email server and change the settings below as needed
    mail.delivery_method :smtp, address: 'REPLACE ME', enable_ssl: false, openssl_verify_mode: 'none' # See https://github.com/mikel/mail for other settings
    mail.deliver! # Finally pass the email along.
  end

end

# Output for debug
puts "#{Time.now}: Starting TestRailInterceptor..."

# Create a new server instance listening at localhost interfaces 127.0.0.1:2525. Replace the 127.0.0.1 with 0.0.0.0 to make it open from anywhere.
# and accepting a maximum of 4 simultaneous connections
server = TestRailInterceptor.new(2525,'127.0.0.1',12)

# Start the server
server.start

# Run on server forever
server.join

# setup exit code
BEGIN {
  at_exit {
    # check to shutdown connection
    if server
      # Output for debug
      puts "#{Time.now}: Shutdown TestRailInterceptor..."
      # gracefully connections down
      server.shutdown
      # check once if some connection(s) need(s) more time
      sleep 2 unless server.connections == 0
      # stop all threads and connections
      server.stop
    end
    # Output for debug
    puts "#{Time.now}: TestRailInterceptor down!"
  }
}

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