Is there interest in a fail2ban notifier?

[etdsoft]

I created a notifier for ExceptionNotification that just pipes a few fields into a separate log file the idea being that after too many exceptions by a single IP in a short period of time fail2ban can kick in and ban the IP for a little while.

If you are interested I can submit a pull request, code is simple:

class Fail2banNotifier
  def initialize(options)
    @default_options = options
    @default_options[:logfile] ||= Rails.root.join('log', 'fail2ban.log')

    # Roll over every 30M, keep 10 files
    @logger ||= Logger.new(@default_options[:logfile], 10, 30*1024*1024)
  end

  def call(exception, options={})
    env = options[:env]
    request = ActionDispatch::Request.new(env)

    # <ip> : <exception class> : <method> <path> -- <params>
    msg = "%s : %s : %s %s -- %s" % [
      request.remote_ip,
      exception.class,
      request.request_method,
      env["PATH_INFO"],
      request.filtered_parameters.inspect
    ]
    @logger.error(msg)
  end
end

[jweslley]

It's great @etdsoft . Can you send a pull request including some usage documentation (and fail2ban config, if required)?

[etdsoft]

Struggling to run the test suite at the moment:

/Users/etd/.rbenv/versions/2.0.0-p353/bin/ruby -I"lib:lib:test" -I"/Users/etd/Code/exception_notification/vendor/bundle/gems/rake-0.9.2.2/lib" "/Users/etd/Code/exception_notification/vendor/bundle/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb" "test/__/__test.rb"
[Coveralls] Set up the SimpleCov formatter.
[Coveralls] Using SimpleCov's default settings.

**\* Mocha deprecation warning: Change `require 'mocha'` to `require 'mocha/setup'`.

DEPRECATION WARNING: ActionController::Integration is deprecated and will be removed, use ActionDispatch::Integration instead. (called from <top (required)> at /Users/etd/Code/exception_notification/test/dummy/vendor/bundle/gems/actionpack-4.0.0/lib/action_controller/deprecated/integration_test.rb:4)
DEPRECATION WARNING: ActionController::IntegrationTest is deprecated and will be removed, use ActionDispatch::IntegrationTest instead. (called from <top (required)> at /Users/etd/Code/exception_notification/test/dummy/vendor/bundle/gems/actionpack-4.0.0/lib/action_controller/deprecated/integration_test.rb:5)
[Coveralls] Outside the Travis environment, not sending data.
/Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require': cannot load such file -- helper (LoadError)
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in`block in require'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in`require'
    from /Users/etd/Code/exception_notification/test/dummy/vendor/bundle/gems/activerecord-deprecated_finders-1.0.3/test/associations_test.rb:1:in `<top (required)>'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in`require'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `block in require'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:236:in`load_dependency'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/activesupport-3.2.6/lib/active_support/dependencies.rb:251:in `require'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:10:in`block (2 levels) in <main>'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:9:in `each'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:9:in`block in <main>'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4:in `select'
    from /Users/etd/Code/exception_notification/vendor/bundle/gems/rake-0.9.2.2/lib/rake/rake_test_loader.rb:4:in`<main>'
rake aborted!

[etdsoft]

submitted as:
#206