From d99bcf4b0d0b8716ab0da58ea7320fb33bac78bb Mon Sep 17 00:00:00 2001
From: Azul <azul@leap.se>
Date: Mon, 25 Feb 2013 13:01:07 +0100
Subject: enable free certs with a common name postfix

---
 certs/app/controllers/certs_controller.rb      |  2 +-
 certs/app/models/client_certificate.rb         | 22 +++++++++++++++++-----
 certs/test/functional/certs_controller_test.rb |  8 ++++----
 certs/test/unit/client_certificate_test.rb     | 23 +++++++++++++++++------
 4 files changed, 39 insertions(+), 16 deletions(-)

(limited to 'certs')

diff --git a/certs/app/controllers/certs_controller.rb b/certs/app/controllers/certs_controller.rb
index 6099ac0..3b7d35d 100644
--- a/certs/app/controllers/certs_controller.rb
+++ b/certs/app/controllers/certs_controller.rb
@@ -3,7 +3,7 @@ class CertsController < ApplicationController
   # GET /cert
   def show
     @cert = ClientCertificate.new(free: !logged_in?)
-    render :text => @cert.key + @cert.cert, :content_type => 'text/plain'
+    render text: @cert.to_s, content_type: 'text/plain'
   end
 
 end
diff --git a/certs/app/models/client_certificate.rb b/certs/app/models/client_certificate.rb
index be0ac63..3a82d1a 100644
--- a/certs/app/models/client_certificate.rb
+++ b/certs/app/models/client_certificate.rb
@@ -1,5 +1,5 @@
 #
-# Model for certificates stored in CouchDB.
+# Model for certificates
 #
 # This file must be loaded after Config has been loaded.
 #
@@ -17,11 +17,11 @@ class ClientCertificate
   #
   # generate the private key and client certificate
   #
-  def initialize
+  def initialize(options = {})
     cert = CertificateAuthority::Certificate.new
 
     # set subject
-    cert.subject.common_name = random_common_name
+    cert.subject.common_name = common_name(options[:free])
 
     # set expiration
     cert.not_before = yesterday
@@ -35,8 +35,12 @@ class ClientCertificate
     cert.parent = ClientCertificate.root_ca
     cert.sign! client_signing_profile
 
-    self.key = cert.key_material.private_key.to_pem
-    self.cert = cert.to_pem
+    self.key = cert.key_material.private_key
+    self.cert = cert
+  end
+
+  def to_s
+    self.key.to_pem + self.cert.to_pem
   end
 
   private
@@ -61,6 +65,14 @@ class ClientCertificate
     Digest::MD5.hexdigest("#{rand(10**10)} -- #{Time.now}").to_i(16)
   end
 
+  def common_name(for_free_cert = false)
+    if for_free_cert
+      random_common_name + ' ' + APP_CONFIG[:free_cert_postfix]
+    else
+      random_common_name
+    end
+  end
+
   #
   # for the random common name, we need a text string that will be unique across all certs.
   # ruby 1.8 doesn't have a built-in uuid generator, or we would use SecureRandom.uuid
diff --git a/certs/test/functional/certs_controller_test.rb b/certs/test/functional/certs_controller_test.rb
index 6ebd08e..a579a00 100644
--- a/certs/test/functional/certs_controller_test.rb
+++ b/certs/test/functional/certs_controller_test.rb
@@ -5,19 +5,19 @@ class CertsControllerTest < ActionController::TestCase
   end
 
   test "should send free cert without login" do
-    cert = stub :cert => "free cert", :key => "key"
+    cert = stub :to_s => "free cert"
     ClientCertificate.expects(:new).with(free: true).returns(cert)
     get :show
     assert_response :success
-    assert_equal cert.key + cert.cert, @response.body
+    assert_equal cert.to_s, @response.body
   end
 
   test "should send cert" do
     login
-    cert = stub :cert => "adsf", :key => "key"
+    cert = stub :to_s => "real cert"
     ClientCertificate.expects(:new).with(free: false).returns(cert)
     get :show
     assert_response :success
-    assert_equal cert.key + cert.cert, @response.body
+    assert_equal cert.to_s, @response.body
   end
 end
diff --git a/certs/test/unit/client_certificate_test.rb b/certs/test/unit/client_certificate_test.rb
index 71a1d90..bcc61cc 100644
--- a/certs/test/unit/client_certificate_test.rb
+++ b/certs/test/unit/client_certificate_test.rb
@@ -2,17 +2,28 @@ require 'test_helper'
 
 class ClientCertificateTest < ActiveSupport::TestCase
 
-  setup do
-    @sample = ClientCertificate.new
+  test "new cert has all we need" do
+    sample = ClientCertificate.new
+    assert sample.key
+    assert sample.cert
+    assert sample.to_s
   end
 
-  test "new cert has all we need" do
-    assert @sample.key
-    assert @sample.cert
+  test "free cert has configured postfix" do
+    sample = ClientCertificate.new(free: true)
+    postfix = APP_CONFIG[:free_cert_postfix]
+    assert sample.cert.subject.common_name.include?(postfix)
+  end
+
+  test "real cert has no free cert postfix" do
+    sample = ClientCertificate.new
+    postfix = APP_CONFIG[:free_cert_postfix]
+    assert !sample.cert.subject.common_name.include?(postfix)
   end
 
   test "cert issuer matches ca subject" do
-    cert = OpenSSL::X509::Certificate.new(@sample.cert)
+    sample = ClientCertificate.new
+    cert = OpenSSL::X509::Certificate.new(sample.cert.to_pem)
     assert_equal ClientCertificate.root_ca.openssl_body.subject, cert.issuer
   end
 
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