pbcopyd.rb

# pbcopyd.rb - A pbcopy/pbpaste server
#
# Usage:
#   ruby pbcopyd.rb [-d] [-h HOSTNAME] [-p PORT]
#
# pbcopy from remote:
#   curl -X POST -d 'Hello, World!' http://host.docker.internal:12345
#
# pbpaste to remote:
#   curl -s http://host.docker.internal:12345


require "optparse"
require "webrick"

DEFAULT_OPTIONS = {
  daemon: false,
  host: 'localhost',
  port: 12345,
}.freeze

class PBCopyServlet < WEBrick::HTTPServlet::AbstractServlet
  def do_GET(req, res)
    res.body = pbpaste
    res.status = 200
  end

  def do_POST(req, res)
    pbcopy(req.body)
    res.status = 200
  end

  def pbcopy(s)
    IO.popen('pbcopy', 'w') { |stdin| stdin << s }
  end

  def pbpaste
    IO.popen('pbpaste', 'r', &:read)
  end
end

def parse_options(argv)
  options = DEFAULT_OPTIONS.dup
  OptionParser.new do |opt|
    opt.on('-d', 'Daemonize') { |v| options[:daemon] = true }
    opt.on('-h', '--host HOSTNAME', 'Hostname') { |v| options[:host] = v }
    opt.on('-p', '--port PORT', 'Port number') { |v| options[:port] = v }
    opt.parse!(argv)
  end
  options
end

def main
  options = parse_options(ARGV)

  Process.daemon if options[:daemon]

  server = WEBrick::HTTPServer.new({ BindAddress: options[:host], Port: options[:port] })
  server.mount('/', PBCopyServlet)
  trap('INT') { server.shutdown }

  server.start
end

if __FILE__ == $0
  main
end