def gen_auth_header(uri, request, auth_header, is_IIS = false)
@@nonce_count += 1
user = @digest_user
password = @digest_password
auth_header =~ /^(\w+) (.*)/
params = {}
$2.gsub(/(\w+)="(.*?)"/) { params[$1] = $2 }
a_1 = "#{@user}:#{params['realm']}:#{@password}"
a_2 = "#{request.method}:#{uri.path}"
request_digest = ''
request_digest << Digest::MD5.hexdigest(a_1)
request_digest << ':' << params['nonce']
request_digest << ':' << ('%08x' % @@nonce_count)
request_digest << ':' << CNONCE
request_digest << ':' << params['qop']
request_digest << ':' << Digest::MD5.hexdigest(a_2)
header = ''
header << "Digest username=\"#{@user}\", "
header << "realm=\"#{params['realm']}\", "
if is_IIS then
header << "qop=\"#{params['qop']}\", "
else
header << "qop=#{params['qop']}, "
end
header << "uri=\"#{uri.path}\", "
header << "algorithm=MD5, "
header << "nonce=\"#{params['nonce']}\", "
header << "nc=#{'%08x' % @@nonce_count}, "
header << "cnonce=\"#{CNONCE}\", "
header << "response=\"#{Digest::MD5.hexdigest(request_digest)}\""
return header
end