openstreetmap-website/vendor/gems/rots-0.2.1/lib/rots/server_app.rb

147 lines
No EOL
3.8 KiB
Ruby

require 'openid'
require 'openid/extension'
require 'openid/extensions/sreg'
require 'openid/store/filesystem'
require 'openid/util'
require 'rack/request'
require 'rack/utils'
require 'fileutils'
module Rots
class ServerApp
attr_accessor :request,:openid_request,
:response, :openid_response,
:server
def initialize(config, server_options)
@server_options = server_options
@sreg_fields = config['sreg']
end
def call(env)
on_openid_request(env) do
if !is_checkid_request?
@openid_response = @server.handle_request(@openid_request)
reply_consumer
elsif is_checkid_immediate?
process_immediate_checkid_request
else
process_checkid_request
end
end
end
protected
def on_openid_request(env)
create_wrappers(env)
if @openid_request.nil?
[200, {'Content-Type' => 'text/html'},
["<html><body><h1>ROTS => This is an OpenID endpoint</h1></body></html>"] ]
else
yield
end
end
def create_wrappers(env)
@request = Rack::Request.new(env)
@server = OpenID::Server::Server.new(storage, op_endpoint)
@openid_request = @server.decode_request(@request.params)
@openid_sreg_request = OpenID::SReg::Request.from_openid_request(@openid_request) unless @openid_request.nil?
end
def is_checkid_request?
@openid_request.is_a?(OpenID::Server::CheckIDRequest)
end
def is_checkid_immediate?
@openid_request && @openid_request.immediate
end
def process_immediate_checkid_request
# TODO: We should enable the user to configure
# if she wants immediate request support or not
url = OpenID::Util.append_args(@openid_request.return_to,
@request.params.merge('openid.mode' => 'setup_needed'))
redirect(url)
end
def process_checkid_request
if checkid_request_is_valid?
return_successful_openid_response
else
return_cancel_openid_response
end
end
def checkid_request_is_valid?
@request.params['openid.success'] == 'true'
end
def return_successful_openid_response
@openid_response = @openid_request.answer(true)
process_sreg_extension
# TODO: Add support for SREG extension
@server.signatory.sign(@openid_response) if @openid_response.needs_signing
reply_consumer
end
def process_sreg_extension
return if @openid_sreg_request.nil?
response = OpenID::SReg::Response.extract_response(@openid_sreg_request, @sreg_fields)
@openid_response.add_extension(response)
end
def return_cancel_openid_response
redirect(@openid_request.cancel_url)
end
def reply_consumer
web_response = @server.encode_response(@openid_response)
case web_response.code
when OpenID::Server::HTTP_OK
success(web_response.body)
when OpenID::Server::HTTP_REDIRECT
redirect(web_response.headers['location'])
else
bad_request
end
end
def redirect(uri)
[ 303, {'Content-Length'=>'0', 'Content-Type'=>'text/plain',
'Location' => uri},
[] ]
end
def bad_request()
[ 400, {'Content-Type'=>'text/plain', 'Content-Length'=>'0'},
[] ]
end
def storage
# create the folder if it doesn't exist
FileUtils.mkdir_p(@server_options[:storage]) unless File.exist?(@server_options[:storage])
OpenID::Store::Filesystem.new(@server_options[:storage])
end
def success(text="")
Rack::Response.new(text).finish
end
def op_endpoint
if @request.url =~ /(.*\?openid.success=true)/
$1
elsif @request.url =~ /([^?]*)/
$1
else
nil
end
end
end
end