Module: Net::HTTPHeader

Defined in:
lib/amp/support/support.rb

Overview

Written by Eric Hodel <[email protected]>

Constant Summary collapse

CNONCE = 
Digest::MD5.new.update("%x" % (Time.now.to_i + rand(65535))).hexdigest
@@nonce_count = 
-1

Instance Method Summary collapse

Instance Method Details

#digest_auth(user, password, response) ⇒ Object 



972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
 
# File 'lib/amp/support/support.rb', line 972

def digest_auth(user, password, response)
  # based on http://segment7.net/projects/ruby/snippets/digest_auth.rb
  @@nonce_count += 1

  response['www-authenticate'] =~ /^(\w+) (.*)/

  params = {}
  $2.gsub(/(\w+)="(.*?)"/) { params[$1] = $2 }

  a_1 = "#{user}:#{params['realm']}:#{password}"
  a_2 = "#{@method}:#{@path}"
  request_digest = ''
  request_digest << Digest::MD5.new.update(a_1).hexdigest
  request_digest << ':' << params['nonce']
  request_digest << ':' << ('%08x' % @@nonce_count)
  request_digest << ':' << CNONCE
  request_digest << ':' << params['qop']
  request_digest << ':' << Digest::MD5.new.update(a_2).hexdigest

  header = []
  header << "Digest username=\"#{user}\""
  header << "realm=\"#{params['realm']}\""
  
  header << "qop=#{params['qop']}"

  header << "algorithm=MD5"
  header << "uri=\"#{@path}\""
  header << "nonce=\"#{params['nonce']}\""
  header << "nc=#{'%08x' % @@nonce_count}"
  header << "cnonce=\"#{CNONCE}\""
  header << "response=\"#{Digest::MD5.new.update(request_digest).hexdigest}\""

  @header['Authorization'] = header
end