Module: Autonoma::Handler

Defined in:
lib/autonoma/handler.rb

Constant Summary collapse

PROTOCOL_VERSION = 
begin
  File.read(File.expand_path("../../../../protocol/version.txt", __dir__)).strip
rescue Errno::ENOENT, Errno::EACCES
  "1.0"
end
TOKEN_RE = 
/\{\{\s*([^{}]+?)\s*\}\}/
CYCLE_RE = 
/\Acycle\((.*)\)\z/

Class Method Summary collapse

Class Method Details

.handle_request(config, req) ⇒ Object 



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# File 'lib/autonoma/handler.rb', line 25

def self.handle_request(config, req)
  if config.shared_secret == config.signing_secret
    raise Errors.same_secrets
  end

  unless config.allow_production
    env = ENV["RAILS_ENV"] || ENV["RACK_ENV"] || ENV["RUBY_ENV"] || ENV["ENV"]
    raise Errors.production_blocked if env == "production"
  end

  signature = req.headers["x-signature"] || req.headers["X-Signature"] || ""

  unless Hmac.verify_signature(req.body, signature, config.shared_secret)
    raise Errors.invalid_signature
  end

  begin
    body = JSON.parse(req.body)
  rescue JSON::ParserError
    raise Errors.invalid_body("invalid JSON")
  end

  action = body["action"]
  raise Errors.invalid_body("missing action") unless action

  case action
  when "discover"
    handle_discover(config)
  when "up"
    handle_up(config, body)
  when "down"
    handle_down(config, body)
  else
    raise Errors.unknown_action(action)
  end
rescue AutonomaError => e
  HandlerResponse.new(status: e.status, body: { "error" => e.message, "code" => e.code })
rescue StandardError => e
  HandlerResponse.new(status: 500, body: { "error" => e.message, "code" => "INTERNAL_ERROR" })
end