filiptepper/rack_out.rb

## rack_out.rb
require "erb"
require "redis"

module Rack
  class Out
    DEFAULTS = { :secret => "secretive-secret", :key => "rack:out",
      :host => "127.0.0.1", :port => 6379, :db => 0, :timeout => 5, :password => nil,
      :logger => nil, :thread_safe => nil }

    def initialize(app, options = {})
      @app, @options = app, DEFAULTS.merge(options)
      @redis = Redis.new :host => @options[:host], :port => @options[:port], :db => @options[:db],
        :timeout => @options[:timeout], :password => @options[:password], :logger => @options[:logger],
        :thread_safe => @options[:thread_safe]
    end

    def call(env); dup._call env; end

    def _call(env)
      @path_info = env["PATH_INFO"]

      begin
        match = (Regexp.new "/__rack_out__/#{@options[:secret]}/(list|add|remove)").match @path_info
        return (self.send match[1]) if match

        return (respond 403, "403 Forbidden") if @redis.sismember @options[:key], env["REMOTE_ADDR"]
      rescue Errno::ECONNREFUSED
      end

      @app.call env
    end

    private

    def remote_addr
      match = (Regexp.new "/__rack_out__/#{@options[:secret]}/(add|remove)/(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)").match @path_info
      return [match[2..5]].join(".") if match
      nil
    end

    def list
      @list = @redis.smembers @options[:key]
      @content = Rack::Out::Template::LIST.result binding
      @form = Rack::Out::Template::FORM.result binding
      respond 200, (Rack::Out::Template::LAYOUT.result binding)
    end

    def add
      ip = remote_addr
      if ip
        @redis.sadd @options[:key], ip
        return 302, { "Location" => "../list" }, [""]
      end

      respond 400, "400 Bad Request"
    end

    def remove
      ip = remote_addr
      if ip
        @redis.srem @options[:key], ip
        return 302, { "Location" => "../list" }, [""]
      end

      respond 400, "400 Bad Request"
    end

    def respond(status, body)
      return status, { "Content-Type" => "text/html" }, [body]
    end
  end
end

module Rack
  class Out
    class Template
      FORM = ERB.new <<-EOF
        <form onsubmit="window.location.href = '/__rack_out__/<%= @options[:secret] %>/add/' + document.getElementById('rack-out-ip').value; return false;">
          <label for="rack-out-ip">IP:</label>
          <input type="text" id="rack-out-ip" />
          <input type="submit" value="Add!" />
        </form>
      EOF

      LIST = ERB.new <<-EOF
        <% if !@list.nil? && @list.any? %>
        <table class="ips">
          <% @list.each do |ip| %>
            <tr>
              <td class="ip"><%= ip %></td>
              <td class="remove"><a href="/__rack_out__/<%= @options[:secret] %>/remove/<%= ip %>">remove</a></td>
            </tr>
            <% end %>
          </table>
        <% else %>
        All clear!
        <% end %>
      EOF

      LAYOUT = ERB.new <<-EOF
        <!DOCTYPE html>
        <html>
        <head>
          <title>Rack::Out</title>
          <style type="text/css">
          html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre,
          a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp,
          small, strike, strong, sub, sup, tt, var, dl, dt, dd, ul, li,
          form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { margin: 0;
          	padding: 0;	border: 0; outline: 0; font-weight: inherit; font-style: normal;
          	font-size: 100%; font-family: inherit; }
          :focus { outline: 0; }
          body { line-height: 1; }
          ul { list-style: none; }
          table { border-collapse: collapse; border-spacing: 0; }
          caption, th, td { text-align: left; font-weight: normal; }
          blockquote:before, blockquote:after, q:before, q:after { content: "";}
          blockquote, q { quotes: "" ""; }
          html { background:#efefef; font-family:Arial, Verdana, sans-serif; font-size:13px; }
          body { padding:0; margin:0; }
          .header { background:#000; padding:8px 5% 0 5%; border-bottom:1px solid #444;border-bottom:5px solid #ce1212;}
          .header ul li { display:inline;}
          .header ul li a { color:#fff; text-decoration:none; margin-right:10px; display:inline-block;  padding:8px; -webkit-border-top-right-radius:6px; -webkit-border-top-left-radius:6px; }
          .header ul li a:hover { background:#333;}
          .header ul li.current a { background:#ce1212; font-weight:bold; color:#fff;}
          #main { padding:10px 5%; background:#fff; overflow:hidden; }
          #main .logo { float:right; margin:10px;}
          #main span.hl { background:#efefef; padding:2px;}
          #main table { width:100%; margin:10px 0;}
          #main table tr td, #main table tr th { border:1px solid #ccc; padding:6px;}
          #main a { color:#111;}
          #main p { margin:5px 0;}
          #main table.ips td.remove { background:#b1d2e9; padding:2px; margin:0 3px; font-size:80%; text-decoration:none; text-transform:uppercase; font-weight:bold; color:#3274a2;}
          #main table.ips td.ip { font-family:Monaco, "Courier New", monospace; font-size:90%;}
          #footer { padding:10px 5%; background:#efefef; color:#999; font-size:85%; line-height:1.5; border-top:5px solid #ccc; padding-top:10px;}
          #footer p a { color:#999;}
          </style>
        </head>
        <body>
          <div class="header">
            <ul class="nav">
              <li class="current"><a href="">Rack::Out</a></li>
            </ul>
          </div>

        <div id="main">
          <%= @content %>
          <%= @form %>
        </div>

        <div id="footer">
          <p>You're running Rack::Out.</p>
          <p>Layout? Thank you, <a href="http://github.com/defunkt/resque">Resque</a>!</p>
        </div>

        </body>
        </html>
      EOF
    end
  end
end
	require "erb"
	require "redis"

	module Rack
	class Out
	DEFAULTS = { :secret => "secretive-secret", :key => "rack:out",
	:host => "127.0.0.1", :port => 6379, :db => 0, :timeout => 5, :password => nil,
	:logger => nil, :thread_safe => nil }

	def initialize(app, options = {})
	@app, @options = app, DEFAULTS.merge(options)
	@redis = Redis.new :host => @options[:host], :port => @options[:port], :db => @options[:db],
	:timeout => @options[:timeout], :password => @options[:password], :logger => @options[:logger],
	:thread_safe => @options[:thread_safe]
	end

	def call(env); dup._call env; end

	def _call(env)
	@path_info = env["PATH_INFO"]

	begin
	match = (Regexp.new "/__rack_out__/#{@options[:secret]}/(list\|add\|remove)").match @path_info
	return (self.send match[1]) if match

	return (respond 403, "403 Forbidden") if @redis.sismember @options[:key], env["REMOTE_ADDR"]
	rescue Errno::ECONNREFUSED
	end

	@app.call env
	end

	private

	def remote_addr
	match = (Regexp.new "/__rack_out__/#{@options[:secret]}/(add\|remove)/(25[0-5]\|2[0-4][0-9]\|[01]?[0-9][0-9]?)\.(25[0-5]\|2[0-4][0-9]\|[01]?[0-9][0-9]?)\.(25[0-5]\|2[0-4][0-9]\|[01]?[0-9][0-9]?)\.(25[0-5]\|2[0-4][0-9]\|[01]?[0-9][0-9]?)").match @path_info
	return [match[2..5]].join(".") if match
	nil
	end

	def list
	@list = @redis.smembers @options[:key]
	@content = Rack::Out::Template::LIST.result binding
	@form = Rack::Out::Template::FORM.result binding
	respond 200, (Rack::Out::Template::LAYOUT.result binding)
	end

	def add
	ip = remote_addr
	if ip
	@redis.sadd @options[:key], ip
	return 302, { "Location" => "../list" }, [""]
	end

	respond 400, "400 Bad Request"
	end

	def remove
	ip = remote_addr
	if ip
	@redis.srem @options[:key], ip
	return 302, { "Location" => "../list" }, [""]
	end

	respond 400, "400 Bad Request"
	end

	def respond(status, body)
	return status, { "Content-Type" => "text/html" }, [body]
	end
	end
	end

	module Rack
	class Out
	class Template
	FORM = ERB.new <<-EOF
	<form onsubmit="window.location.href = '/__rack_out__/<%= @options[:secret] %>/add/' + document.getElementById('rack-out-ip').value; return false;">
	<label for="rack-out-ip">IP:</label>
	<input type="text" id="rack-out-ip" />
	<input type="submit" value="Add!" />
	</form>
	EOF

	LIST = ERB.new <<-EOF
	<% if !@list.nil? && @list.any? %>
	<table class="ips">
	<% @list.each do \|ip\| %>
	<tr>
	<td class="ip"><%= ip %></td>
	<td class="remove"><a href="/__rack_out__/<%= @options[:secret] %>/remove/<%= ip %>">remove</a></td>
	</tr>
	<% end %>
	</table>
	<% else %>
	All clear!
	<% end %>
	EOF

	LAYOUT = ERB.new <<-EOF
	<!DOCTYPE html>
	<html>
	<head>
	<title>Rack::Out</title>
	<style type="text/css">
	html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre,
	a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp,
	small, strike, strong, sub, sup, tt, var, dl, dt, dd, ul, li,
	form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { margin: 0;
	padding: 0; border: 0; outline: 0; font-weight: inherit; font-style: normal;
	font-size: 100%; font-family: inherit; }
	:focus { outline: 0; }
	body { line-height: 1; }
	ul { list-style: none; }
	table { border-collapse: collapse; border-spacing: 0; }
	caption, th, td { text-align: left; font-weight: normal; }
	blockquote:before, blockquote:after, q:before, q:after { content: "";}
	blockquote, q { quotes: "" ""; }
	html { background:#efefef; font-family:Arial, Verdana, sans-serif; font-size:13px; }
	body { padding:0; margin:0; }
	.header { background:#000; padding:8px 5% 0 5%; border-bottom:1px solid #444;border-bottom:5px solid #ce1212;}
	.header ul li { display:inline;}
	.header ul li a { color:#fff; text-decoration:none; margin-right:10px; display:inline-block; padding:8px; -webkit-border-top-right-radius:6px; -webkit-border-top-left-radius:6px; }
	.header ul li a:hover { background:#333;}
	.header ul li.current a { background:#ce1212; font-weight:bold; color:#fff;}
	#main { padding:10px 5%; background:#fff; overflow:hidden; }
	#main .logo { float:right; margin:10px;}
	#main span.hl { background:#efefef; padding:2px;}
	#main table { width:100%; margin:10px 0;}
	#main table tr td, #main table tr th { border:1px solid #ccc; padding:6px;}
	#main a { color:#111;}
	#main p { margin:5px 0;}
	#main table.ips td.remove { background:#b1d2e9; padding:2px; margin:0 3px; font-size:80%; text-decoration:none; text-transform:uppercase; font-weight:bold; color:#3274a2;}
	#main table.ips td.ip { font-family:Monaco, "Courier New", monospace; font-size:90%;}
	#footer { padding:10px 5%; background:#efefef; color:#999; font-size:85%; line-height:1.5; border-top:5px solid #ccc; padding-top:10px;}
	#footer p a { color:#999;}
	</style>
	</head>
	<body>
	<div class="header">
	<ul class="nav">
	<li class="current"><a href="">Rack::Out</a></li>
	</ul>
	</div>

	<div id="main">
	<%= @content %>
	<%= @form %>
	</div>

	<div id="footer">
	<p>You're running Rack::Out.</p>
	<p>Layout? Thank you, <a href="http://github.com/defunkt/resque">Resque</a>!</p>
	</div>

	</body>
	</html>
	EOF
	end
	end
	end