ahx/app.rb

## app.rb
# An example for an OpenID consumer using Sinatra

require 'rubygems'
require 'sinatra'
gem 'ruby-openid', '>=2.1.2'
require 'openid'
require 'openid/store/filesystem'

helpers do
  def openid_consumer
    @openid_consumer ||= OpenID::Consumer.new(session,
        OpenID::Store::Filesystem.new("#{File.dirname(__FILE__)}/tmp/openid"))
  end

  def root_url
    request.url.match(/(^.*\/{2}[^\/]*)/)[1]
  end
end


get '/login' do
  erb :login
end

post '/login/openid' do
  openid = params[:openid_identifier]
  begin
    oidreq = openid_consumer.begin(openid)
  rescue OpenID::DiscoveryFailure => why
    "Sorry, we couldn't find your identifier #{openid}."
  else
    # You could request additional information here - see specs:
    # http://openid.net/specs/openid-simple-registration-extension-1_0.html
    # oidreq.add_extension_arg('sreg','required','nickname')
    # oidreq.add_extension_arg('sreg','optional','fullname, email')

    # Send request - first parameter: Trusted Site,
    # second parameter: redirect target
    redirect oidreq.redirect_url(root_url, root_url + "/login/openid/complete")
  end
end

get '/login/openid/complete' do
  oidresp = openid_consumer.complete(params, request.url)
  openid = oidresp.display_identifier

  case oidresp.status
    when OpenID::Consumer::FAILURE
      "Sorry, we could not authenticate you with this identifier #{openid}."

    when OpenID::Consumer::SETUP_NEEDED
      "Immediate request failed - Setup Needed"

    when OpenID::Consumer::CANCEL
      "Login cancelled."

    when OpenID::Consumer::SUCCESS
      # Access additional informations:
      # puts params['openid.sreg.nickname']
      # puts params['openid.sreg.fullname']

      "Login successfull."  # startup something
  end
end


use_in_file_templates!

__END__

@@ layout
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
  <meta http-equiv="content-type" content="text/html;charset=UTF-8" />
  <title>got openid?</title>
</head>
<body>
  <%= yield %>
</body>
</html>


@@ login
<form method="post" accept-charset="UTF-8" action='/login/openid'>
  Identifier:
  <input type="text" class="openid" name="openid_identifier" />
  <input type="submit" value="Verify" />
</form>
	# An example for an OpenID consumer using Sinatra

	require 'rubygems'
	require 'sinatra'
	gem 'ruby-openid', '>=2.1.2'
	require 'openid'
	require 'openid/store/filesystem'

	helpers do
	def openid_consumer
	@openid_consumer \|\|= OpenID::Consumer.new(session,
	OpenID::Store::Filesystem.new("#{File.dirname(__FILE__)}/tmp/openid"))
	end

	def root_url
	request.url.match(/(^.\/{2}[^\/])/)[1]
	end
	end


	get '/login' do
	erb :login
	end

	post '/login/openid' do
	openid = params[:openid_identifier]
	begin
	oidreq = openid_consumer.begin(openid)
	rescue OpenID::DiscoveryFailure => why
	"Sorry, we couldn't find your identifier #{openid}."
	else
	# You could request additional information here - see specs:
	# http://openid.net/specs/openid-simple-registration-extension-1_0.html
	# oidreq.add_extension_arg('sreg','required','nickname')
	# oidreq.add_extension_arg('sreg','optional','fullname, email')

	# Send request - first parameter: Trusted Site,
	# second parameter: redirect target
	redirect oidreq.redirect_url(root_url, root_url + "/login/openid/complete")
	end
	end

	get '/login/openid/complete' do
	oidresp = openid_consumer.complete(params, request.url)
	openid = oidresp.display_identifier

	case oidresp.status
	when OpenID::Consumer::FAILURE
	"Sorry, we could not authenticate you with this identifier #{openid}."

	when OpenID::Consumer::SETUP_NEEDED
	"Immediate request failed - Setup Needed"

	when OpenID::Consumer::CANCEL
	"Login cancelled."

	when OpenID::Consumer::SUCCESS
	# Access additional informations:
	# puts params['openid.sreg.nickname']
	# puts params['openid.sreg.fullname']

	"Login successfull." # startup something
	end
	end


	use_in_file_templates!

	__END__

	@@ layout
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
	<head>
	<meta http-equiv="content-type" content="text/html;charset=UTF-8" />
	<title>got openid?</title>
	</head>
	<body>
	<%= yield %>
	</body>
	</html>


	@@ login
	<form method="post" accept-charset="UTF-8" action='/login/openid'>
	Identifier:
	<input type="text" class="openid" name="openid_identifier" />
	<input type="submit" value="Verify" />
	</form>