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#!/usr/bin/env ruby
=begin
This file is part of SAP.
SAP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
SAP is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SAP. If not, see <http://www.gnu.org/licenses/>.
Copyright (C) 2011 Kevin "tsaitgaist" Redon kevredon@mail.tsaitgaist.info
=end
require 'lib/server'
require 'rubygems'
require 'smartcard'
=begin
need to install
sudo aptitude install ruby ruby-dev rubygems
sudo aptitude install libpcsclite1 libpcsclite-dev libruby
sudo gem install smartcard (http://www.rubygems.org/gems/smartcard)
=end
# SAP server using PCSC for the card
class PCSCServer < Server
# provide the io to listen to
def initialize(io)
super(io)
end
# connect to card
# TODO : choose which reader to use
def connect
# get PCSC context
context = Smartcard::PCSC::Context.new
# get all readers
begin
readers = context.readers
rescue Smartcard::PCSC::Exception => e
puts "no reader available. please connect a card reader"
begin
readers = context.readers
rescue Smartcard::PCSC::Exception => e
sleep 1
retry
end
end
# one reader required
if readers.size==0 then
puts "no reader available. connect a reader"
# info client ["StatusChange",["Card not accessible"]]
status = create_message("STATUS_IND",[[0x08,[0x02]]])
send(status)
while readers.size==0 do
context = Smartcard::PCSC::Context.new
readers = context.readers
sleep 1
end
end
# use the first reader
reader = readers.first
puts "using reader : #{reader}"
# connect to the card
begin
@card = Smartcard::PCSC::Card.new(context,reader,:exclusive,:t0)
rescue Smartcard::PCSC::Exception => e
# wait for a card
puts "no card available. insert card"
# info client ["StatusChange",["Card not accessible"]]
status = create_message("STATUS_IND",[[0x08,[0x02]]])
send(status)
begin
@card = Smartcard::PCSC::Card.new(context,reader,:exclusive,:t0)
rescue Smartcard::PCSC::Exception => e
sleep 1
retry
end
end
# card ready
# ["StatusChange",["Card reset"]]
status = create_message("STATUS_IND",[[0x08,[0x01]]])
send(status)
puts "connected to card"
log("server","SIM ready (reset)",3)
end
# get ATR
def atr
raise "connect to card to get ATR" unless @card
return @card.info[:atr].unpack("C*")
end
# send APDU and get response
def apdu(request)
raise "connect to card to send APDU" unless @card
response = @card.transmit(request.pack('C*')).unpack("C*")
return response
end
end
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