Class: RBus::Auth::DBusCookieSHA1

Inherits:
Object
  • Object
show all
Defined in:
lib/rbus/auth/dbus_cookie_sha1.rb

Overview

Implements the AUTH DBUS_COOKIE_SHA1 mechanism.

Instance Method Summary collapse

Instance Method Details

#auth ⇒ Object 



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# File 'lib/rbus/auth/dbus_cookie_sha1.rb', line 30

def auth
  require 'etc'
  
  ['DBUS_COOKIE_SHA1', Etc.getlogin, :DATA]
end

#data(data) ⇒ Object

Raises:



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# File 'lib/rbus/auth/dbus_cookie_sha1.rb', line 36

def data(data)
  require 'digest/sha1'
          
  # name of cookie file, id of cookie in file, servers random challenge  
  context, id, s_challenge = data.split(' ')
  
  # Random client challenge        
  c_challenge = Array.new(s_challenge.length/2).map{|obj|obj=rand(255).to_s}.join
  
  # Search cookie file for id
  path = File.join(ENV['HOME'], '.dbus-keyrings', context)
  File.foreach(path) do |line|
    if line.index(id) == 0
      
      # Right line of file, read cookie
      cookie = line.split(' ')[2].chomp
      
      # Concatenate and encrypt
      to_encrypt = [s_challenge, c_challenge, cookie].join(':')
      sha = Digest::SHA1.hexdigest(to_encrypt)
      
      # Return response
      return ["#{c_challenge} #{sha}", :OK]
    end
  end
  
  raise AuthException, 'Unable to locate cookie'
end