From 7e07debc91ec19aee40a6e788f21d3e3f4cd7eb5 Mon Sep 17 00:00:00 2001
From: David Vandorpe <david.vandorpe@ugent.be>
Date: Wed, 21 Mar 2018 19:40:03 +0100
Subject: [PATCH] Revert "Fix for WiNA"

This reverts commit eae4a3e99c2ff203002426d4c77ca961211d098a.
---
 .gitignore                                    |  1 -
 Gemfile                                       |  8 +-
 Gemfile.lock                                  | 33 +++++--
 .../components/transaction_form.jsx.coffee    | 28 +++---
 app/controllers/callbacks_controller.rb       | 10 ++
 .../concerns/transactions_query.rb            |  4 +-
 app/controllers/transactions_controller.rb    |  4 +-
 app/models/client.rb                          |  2 +-
 app/models/user.rb                            | 17 ++--
 app/views/pages/_transaction_form.html.haml   |  2 +-
 app/views/pages/sign_in_page.html.haml        |  2 +-
 app/views/transactions/_new.html.haml         |  4 +-
 app/views/users/show.html.haml                |  4 +-
 bin/rails                                     |  4 +
 bin/rake                                      |  4 +
 config/initializers/devise.rb                 | 94 ++++---------------
 config/initializers/zeuswpi.rb                | 38 ++++++++
 config/routes.rb                              |  4 +-
 .../20150908091028_devise_create_users.rb     |  6 +-
 db/migrate/20150908092731_create_clients.rb   |  2 +-
 db/schema.rb                                  | 18 ++--
 21 files changed, 143 insertions(+), 146 deletions(-)
 create mode 100644 app/controllers/callbacks_controller.rb
 create mode 100644 config/initializers/zeuswpi.rb

diff --git a/.gitignore b/.gitignore
index f0c20bc..354eb8e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,4 +16,3 @@
 !/log/.keep
 /tmp
 coverage/
-.idea
diff --git a/Gemfile b/Gemfile
index 7804386..d31482b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,6 +3,8 @@ source 'https://rubygems.org'
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '4.2.4'
+# Use sqlite3 as the database for Active Record
+gem 'sqlite3'
 # Use SCSS for stylesheets
 gem 'sass-rails', '~> 5.0'
 # Use Uglifier as compressor for JavaScript assets
@@ -14,7 +16,7 @@ gem 'coffee-rails', '~> 4.1.0'
 
 # Authentication
 gem 'devise'
-gem 'devise_cas_authenticatable'
+gem 'omniauth-oauth2'
 
 # Authorisation
 gem 'cancancan'
@@ -61,8 +63,6 @@ group :development, :test do
   gem 'rspec-rails'
   gem 'factory_girl_rails'
   gem 'faker'
-  # Use sqlite3 as the database for Active Record
-  gem 'sqlite3'
 end
 
 group :development do
@@ -86,7 +86,7 @@ group :test do
 end
 
 group :production do
-  gem 'pg', '~> 0.20'
+  gem 'mysql2', '~> 0.3.0'
 end
 
 gem 'high_voltage', '~> 2.4.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index bba8fc6..2f608c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,9 +98,6 @@ GEM
       responders
       thread_safe (~> 0.1)
       warden (~> 1.2.3)
-    devise_cas_authenticatable (1.10.3)
-      devise (>= 1.2.0)
-      rubycas-client (>= 2.2.1)
     diff-lcs (1.2.5)
     docile (1.1.5)
     domain_name (0.5.24)
@@ -114,6 +111,8 @@ GEM
       railties (>= 3.0.0)
     faker (1.5.0)
       i18n (~> 0.5)
+    faraday (0.9.1)
+      multipart-post (>= 1.2, < 3)
     friendly_id (5.1.0)
       activerecord (>= 4.0.0)
     globalid (0.3.6)
@@ -126,6 +125,7 @@ GEM
       haml (>= 4.0.6, < 5.0)
       html2haml (>= 1.0.1)
       railties (>= 4.0.1)
+    hashie (3.4.2)
     high_voltage (2.4.0)
     html2haml (2.0.0)
       erubis (~> 2.7.0)
@@ -148,6 +148,7 @@ GEM
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (1.8.3)
+    jwt (1.5.1)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
@@ -156,14 +157,28 @@ GEM
     mini_portile (0.6.2)
     minitest (5.8.0)
     multi_json (1.11.2)
+    multi_xml (0.5.5)
+    multipart-post (2.0.0)
+    mysql2 (0.3.20)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.2)
     netrc (0.10.3)
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
+    oauth2 (1.0.0)
+      faraday (>= 0.8, < 0.10)
+      jwt (~> 1.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (~> 1.2)
+    omniauth (1.2.2)
+      hashie (>= 1.2, < 4)
+      rack (~> 1.0)
+    omniauth-oauth2 (1.3.1)
+      oauth2 (~> 1.0)
+      omniauth (~> 1.2)
     orm_adapter (0.5.0)
-    pg (0.21.0)
     purecss-rails (0.6.0)
       railties (>= 3.2.6, < 5)
     rack (1.6.4)
@@ -194,7 +209,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.4.2)
-    rdoc (4.3.0)
+    rdoc (4.2.0)
     react-rails (1.10.0)
       babel-transpiler (>= 0.7.0)
       coffee-script-source (~> 1.8)
@@ -228,8 +243,6 @@ GEM
     rspec-support (3.3.0)
     ruby_parser (3.7.1)
       sexp_processor (~> 4.1)
-    rubycas-client (2.3.9)
-      activesupport
     sass (3.4.18)
     sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)
@@ -301,7 +314,6 @@ DEPENDENCIES
   coffee-rails (~> 4.1.0)
   coveralls
   devise
-  devise_cas_authenticatable
   factory_girl_rails
   faker
   friendly_id (~> 5.1.0)
@@ -310,7 +322,8 @@ DEPENDENCIES
   jbuilder (~> 2.0)
   jquery-datatables-rails
   jquery-rails
-  pg (~> 0.20)
+  mysql2 (~> 0.3.0)
+  omniauth-oauth2
   purecss-rails
   rails (= 4.2.4)
   react-rails
@@ -326,4 +339,4 @@ DEPENDENCIES
   web-console (~> 2.0)
 
 BUNDLED WITH
-   1.16.1
+   1.13.7
diff --git a/app/assets/javascripts/components/transaction_form.jsx.coffee b/app/assets/javascripts/components/transaction_form.jsx.coffee
index 2959aeb..bd12297 100644
--- a/app/assets/javascripts/components/transaction_form.jsx.coffee
+++ b/app/assets/javascripts/components/transaction_form.jsx.coffee
@@ -41,22 +41,16 @@ Amount = React.createFactory React.createClass
           }
 
 Peer = React.createFactory React.createClass
-  extractName: (peer) ->
-    if peer && typeof peer == 'object'
-      return peer.name
-    return peer;
-
   onChange: (ref) ->
     @props.setPeer ref.target.value
   options: ->
     { peer, peers } = @props
-    peerName = @extractName(peer)
-    if peer == '' or peers.filter((t) -> t.name == peerName ).length > 0
+    if peer == '' or peers.includes(peer)
       []
     else
-      re = new RegExp peerName
+      re = new RegExp peer
       peers.filter (s) ->
-        s.name.match(re) != null
+        s.match(re) != null
   inputClass: (n) ->
     c = ['form-control', 'input-lg']
     c.push 'active' if n > 0
@@ -72,15 +66,15 @@ Peer = React.createFactory React.createClass
           input {
             className: @inputClass(options.length),
             onChange: @onChange,
-            placeholder: 'WiNA member',
+            placeholder: 'Zeus member',
             type: 'text',
-            value: (@extractName(@props.peer) || '')
+            value: (@props.peer || '')
           }
           if options.length != 0
             div className: 'suggestions',
               @options().map (s, i) =>
                 div className: 'suggestion', key: i, onClick: @setPeer(s),
-                  s.name
+                  s
 
 Message = React.createFactory React.createClass
   onChange: (ref) ->
@@ -147,11 +141,11 @@ Step = React.createFactory React.createClass
       return
 
     if giving
-      debtor   = user.username
-      creditor = peer.username
+      debtor   = user.name
+      creditor = peer
     else
-      debtor   = peer.username
-      creditor = user.username
+      debtor   = peer
+      creditor = user.name
 
     $('<input />')
       .attr('name', 'transaction[debtor]')
@@ -181,7 +175,7 @@ Step = React.createFactory React.createClass
     unless message && message != ""
       errors['message'] = 'Please fill in a message.'
 
-    unless peer && peers.filter((t) -> t.name == peer.name ).length > 0 && peer != user
+    unless peer && peers.includes(peer) && peer != user
       errors['peer'] = 'Please select a valid Zeus member.'
 
     errors
diff --git a/app/controllers/callbacks_controller.rb b/app/controllers/callbacks_controller.rb
new file mode 100644
index 0000000..dcd8663
--- /dev/null
+++ b/app/controllers/callbacks_controller.rb
@@ -0,0 +1,10 @@
+class CallbacksController < Devise::OmniauthCallbacksController
+  def zeuswpi
+    @user = User.from_omniauth(request.env["omniauth.auth"])
+    sign_in_and_redirect @user
+  end
+
+  def after_omniauth_failure_path_for(scope)
+    root_path
+  end
+end
diff --git a/app/controllers/concerns/transactions_query.rb b/app/controllers/concerns/transactions_query.rb
index f762a0b..2311809 100644
--- a/app/controllers/concerns/transactions_query.rb
+++ b/app/controllers/concerns/transactions_query.rb
@@ -6,7 +6,7 @@ class TransactionsQuery
     @transactions = Arel::Table.new(:transactions)
     @perspectived = Arel::Table.new(:perspectived_transactions)
     @peers = Arel::Table.new(:users).alias('peers')
-    @arel_table = Arel::Table.new("#{@user.username}_transactions")
+    @arel_table = Arel::Table.new("#{@user.name}_transactions")
   end
 
   def query
@@ -16,7 +16,7 @@ class TransactionsQuery
 
   def arel
     Arel::Nodes::TableAlias.new(
-      issued_by(User),
+      issued_by(User).union(:all, issued_by(Client)),
       arel_table.name
     )
   end
diff --git a/app/controllers/transactions_controller.rb b/app/controllers/transactions_controller.rb
index dd91723..4227c7e 100644
--- a/app/controllers/transactions_controller.rb
+++ b/app/controllers/transactions_controller.rb
@@ -36,8 +36,8 @@ class TransactionsController < ApplicationController
           .permit(:debtor, :creditor, :message, :euros, :cents, :id_at_client)
 
     {
-      debtor: t[:debtor] ? User.find_by(username: t[:debtor]) : User.wina,
-      creditor: t[:creditor] ? User.find_by(username: t[:creditor]) : User.wina,
+      debtor: t[:debtor] ? User.find_or_create_by(name: t[:debtor]) : User.zeus,
+      creditor: t[:creditor] ? User.find_or_create_by(name: t[:creditor]) : User.zeus,
       issuer: current_client || current_user,
       amount: (t[:euros].to_f * 100 + t[:cents].to_f).to_i,
       message: t[:message],
diff --git a/app/models/client.rb b/app/models/client.rb
index a5644e8..c3f4762 100644
--- a/app/models/client.rb
+++ b/app/models/client.rb
@@ -14,7 +14,7 @@ class Client < ActiveRecord::Base
   has_many :issued_transactions, as: :issuer, class_name: 'Transaction'
   before_create :generate_key
 
-  validates :username, presence: true, uniqueness: true
+  validates :name, presence: true, uniqueness: true
 
   private
   def generate_key
diff --git a/app/models/user.rb b/app/models/user.rb
index 6cb9c48..a60aceb 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -13,7 +13,7 @@
 class User < ActiveRecord::Base
   include FriendlyId
   friendly_id :name, use: :finders
-  devise :cas_authenticatable
+  devise :timeoutable, :omniauthable, :omniauth_providers => [:zeuswpi]
   has_many :incoming_transactions,
     class_name: 'Transaction', foreign_key: 'creditor_id'
   has_many :outgoing_transactions,
@@ -28,7 +28,7 @@ class User < ActiveRecord::Base
 
   validates :name, presence: true, uniqueness: true
 
-  scope :humans, -> { where.not(id: self.wina) }
+  scope :humans, -> { where.not(id: self.zeus) }
 
   def transactions
     Transaction.where("creditor_id = ? OR debtor_id = ?", id, id)
@@ -40,13 +40,14 @@ class User < ActiveRecord::Base
     self.update_attribute :balance, balance
   end
 
-  def cas_extra_attributes=(extra_attributes)
-    self.name = extra_attributes['display_name']
-    self.debt_allowed = extra_attributes['permissions'].include? 'HAVE_SCHULDEN'
-    self.penning = extra_attributes['permissions'].include? 'MANAGE_SCHULDEN'
+  def self.from_omniauth(auth)
+    where(name: auth.uid).first_or_create do |user|
+      user.name = auth.uid
+    end
   end
 
-  def self.wina
-    @@wina ||= find_or_create_by name: 'WiNA', username: :WiNA
+  def self.zeus
+    @@zeus ||= find_or_create_by name: 'Zeus'
   end
+
 end
diff --git a/app/views/pages/_transaction_form.html.haml b/app/views/pages/_transaction_form.html.haml
index aaee407..2da34ad 100644
--- a/app/views/pages/_transaction_form.html.haml
+++ b/app/views/pages/_transaction_form.html.haml
@@ -1,3 +1,3 @@
 .card-wrapper
   .card.padded
-    = react_component 'TransactionForm', user: current_user, peers: User.all.order(:name)
+    = react_component 'TransactionForm', user: current_user, peers: User.all.order(:name).pluck(:name)
diff --git a/app/views/pages/sign_in_page.html.haml b/app/views/pages/sign_in_page.html.haml
index 86f1641..2795a68 100644
--- a/app/views/pages/sign_in_page.html.haml
+++ b/app/views/pages/sign_in_page.html.haml
@@ -4,7 +4,7 @@
   .pure-u-1.pure-u-md-1-2
     %h2 Authentication
     %p Log een keer in en betaal uw schulden!
-    %p= link_to "Log in met WiNA CAS", new_user_session_path, class: "pure-button pure-button-primary login-button"
+    %p= link_to "Log in met Zeus WPI", user_omniauth_authorize_path(:zeuswpi), class: "pure-button pure-button-primary login-button"
   .pure-u-1.pure-u-md-1-2
     %h2 Pie of Shame
     = pie_chart @statistics.shamehash
diff --git a/app/views/transactions/_new.html.haml b/app/views/transactions/_new.html.haml
index b3c317f..9b2a6db 100644
--- a/app/views/transactions/_new.html.haml
+++ b/app/views/transactions/_new.html.haml
@@ -3,9 +3,9 @@
 = render 'partials/form_errors', object: @transaction
 
 = form_for @transaction, remote: true, html: { class: "pure-form form-inline" } do |f|
-  = f.hidden_field :debtor, value: @user.username
+  = f.hidden_field :debtor, value: @user.name
   = f.select :creditor,
-      options_from_collection_for_select(User.all.order(:name), :username, :name),
+      options_from_collection_for_select(User.all.order(:name), :name, :name),
       { include_blank: true },
       { class: 'select2-selector', required: true, data: { placeholder: "Creditor", width: 150 } }
   = f.text_field :message, placeholder: "Message", size: 75, class: "form-control", required: true
diff --git a/app/views/users/show.html.haml b/app/views/users/show.html.haml
index 53be424..5260746 100644
--- a/app/views/users/show.html.haml
+++ b/app/views/users/show.html.haml
@@ -42,13 +42,13 @@
         .row
           .col-md-4
             .input-listen{ 'data-input-type': 'text', 'data-filter-name': 'Issuer' }
-              = grouped_collection_select nil, nil, [User, Client], :all, :name, :username, :name,
+              = grouped_collection_select nil, nil, [User, Client], :all, :name, :name, :name,
                 { include_blank: true },
                 { data: { placeholder: "Filter on Issuer", width: 265 }, class: "select2-selector form-control value-thing" }
           .col-md-4
             .input-listen{ 'data-input-type': 'text', 'data-filter-name': 'Peer' }
               = select_tag nil,
-                options_from_collection_for_select(User.all.order(:name), :username, :name),
+                options_from_collection_for_select(User.all.order(:name), :name, :name),
                 include_blank: true, class: "select2-selector form-control value-thing", data: { placeholder: "Filter on Peer", width: 265 }
           .col-md-4
             .input-listen{ 'data-input-type': 'text', 'data-filter-name': 'Message' }
diff --git a/bin/rails b/bin/rails
index 5191e69..4d608ed 100755
--- a/bin/rails
+++ b/bin/rails
@@ -1,4 +1,8 @@
 #!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
 APP_PATH = File.expand_path('../../config/application', __FILE__)
 require_relative '../config/boot'
 require 'rails/commands'
diff --git a/bin/rake b/bin/rake
index 1724048..8017a02 100755
--- a/bin/rake
+++ b/bin/rake
@@ -1,4 +1,8 @@
 #!/usr/bin/env ruby
+begin
+  load File.expand_path("../spring", __FILE__)
+rescue LoadError
+end
 require_relative '../config/boot'
 require 'rake'
 Rake.application.run
diff --git a/config/initializers/devise.rb b/config/initializers/devise.rb
index cdc63a1..15aa283 100644
--- a/config/initializers/devise.rb
+++ b/config/initializers/devise.rb
@@ -4,9 +4,9 @@ Devise.setup do |config|
   # The secret key used by Devise. Devise uses this key to generate
   # random tokens. Changing this key will render invalid all existing
   # confirmation, reset password and unlock tokens in the database.
-  # Devise will use the `secret_key_base` as its `secret_key`
+  # Devise will use the `secret_key_base` on Rails 4+ applications as its `secret_key`
   # by default. You can change it below and use your own secret key.
-  # config.secret_key = 'a53f0fd5c5917bd1c1453a26597c4b8767ec02ae7e716f2c5513c389b5441a2a5fdd3ed82561f29579f05c6d2242979cbc7836d63bb1f38e1ab6f2c2d8ccc934'
+  # config.secret_key = 'db9dcc69d4370aba9151d435032f8263c40b2536a288267af3878a16df4b9d9f8e509f7671a39c534d0ac663f6fb9d3a879cdea867dc73053c97b36406e0a9e9'
 
   # ==> Mailer Configuration
   # Configure the e-mail address which will be shown in Devise::Mailer,
@@ -17,9 +17,6 @@ Devise.setup do |config|
   # Configure the class responsible to send e-mails.
   # config.mailer = 'Devise::Mailer'
 
-  # Configure the parent class responsible to send e-mails.
-  # config.parent_mailer = 'ActionMailer::Base'
-
   # ==> ORM configuration
   # Load and configure the ORM. Supports :active_record (default) and
   # :mongoid (bson_ext recommended) by default. Other ORMs may be
@@ -90,31 +87,19 @@ Devise.setup do |config|
   # from the server. You can disable this option at your own risk.
   # config.clean_up_csrf_token_on_authentication = true
 
-  # When false, Devise will not attempt to reload routes on eager load.
-  # This can reduce the time taken to boot the app but if your application
-  # requires the Devise mappings to be loaded during boot time the application
-  # won't boot properly.
-  # config.reload_routes = true
-
   # ==> Configuration for :database_authenticatable
-  # For bcrypt, this is the cost for hashing the password and defaults to 11. If
-  # using other algorithms, it sets how many times you want the password to be hashed.
+  # For bcrypt, this is the cost for hashing the password and defaults to 10. If
+  # using other encryptors, it sets how many times you want the password re-encrypted.
   #
   # Limiting the stretches to just one in testing will increase the performance of
   # your test suite dramatically. However, it is STRONGLY RECOMMENDED to not use
   # a value less than 10 in other environments. Note that, for bcrypt (the default
-  # algorithm), the cost increases exponentially with the number of stretches (e.g.
+  # encryptor), the cost increases exponentially with the number of stretches (e.g.
   # a value of 20 is already extremely slow: approx. 60 seconds for 1 calculation).
-  config.stretches = Rails.env.test? ? 1 : 11
+  config.stretches = Rails.env.test? ? 1 : 10
 
-  # Set up a pepper to generate the hashed password.
-  # config.pepper = 'c664e685c6d19495baa24a50ea811daca5acc07987f86748699ccc1f31dcae70b39744352188041ea10428d923ef58228fb93c829672e2065be91784909dd2d5'
-
-  # Send a notification to the original email when the user's email is changed.
-  # config.send_email_changed_notification = false
-
-  # Send a notification email when the user's password is changed.
-  # config.send_password_change_notification = false
+  # Setup a pepper to generate the encrypted password.
+  # config.pepper = '6246d8fa4efd376623925a6d8600b268d11ce906a667d550663fe069dbe249bd11c0f26329c1d61f58fa9a615ee738d5b0feba189b6fdc390662e45b7a39c476'
 
   # ==> Configuration for :confirmable
   # A period that the user is allowed to access the website even without
@@ -157,12 +142,12 @@ Devise.setup do |config|
 
   # ==> Configuration for :validatable
   # Range for password length.
-  config.password_length = 6..128
+  config.password_length = 8..72
 
   # Email regex used to validate email formats. It simply asserts that
   # one (and only one) @ exists in the given string. This is mainly
   # to give user feedback and not to assert the e-mail validity.
-  config.email_regexp = /\A[^@\s]+@[^@\s]+\z/
+  # config.email_regexp = /\A[^@]+@[^@]+\z/
 
   # ==> Configuration for :timeoutable
   # The time you want to timeout the user session without activity. After this
@@ -210,11 +195,11 @@ Devise.setup do |config|
   # config.sign_in_after_reset_password = true
 
   # ==> Configuration for :encryptable
-  # Allow you to use another hashing or encryption algorithm besides bcrypt (default).
-  # You can use :sha1, :sha512 or algorithms from others authentication tools as
-  # :clearance_sha1, :authlogic_sha512 (then you should set stretches above to 20
-  # for default behavior) and :restful_authentication_sha1 (then you should set
-  # stretches to 10, and copy REST_AUTH_SITE_KEY to pepper).
+  # Allow you to use another encryption algorithm besides bcrypt (default). You can use
+  # :sha1, :sha512 or encryptors from others authentication tools as :clearance_sha1,
+  # :authlogic_sha512 (then you should set stretches above to 20 for default behavior)
+  # and :restful_authentication_sha1 (then you should set stretches to 10, and copy
+  # REST_AUTH_SITE_KEY to pepper).
   #
   # Require the `devise-encryptable` gem when using anything other than bcrypt
   # config.encryptor = :sha512
@@ -250,7 +235,7 @@ Devise.setup do |config|
   # ==> OmniAuth
   # Add a new OmniAuth provider. Check the wiki for more information on setting
   # up on your models and hooks.
-  # config.omniauth :github, 'APP_ID', 'APP_SECRET', scope: 'user,public_repo'
+  config.omniauth :zeuswpi, Rails.application.secrets.omniauth_client_id, Rails.application.secrets.omniauth_client_secret
 
   # ==> Warden configuration
   # If you want to use other strategies, that are not supported by Devise, or
@@ -274,51 +259,4 @@ Devise.setup do |config|
   # When using OmniAuth, Devise cannot automatically set OmniAuth path,
   # so you need to do it manually. For the users scope, it would be:
   # config.omniauth_path_prefix = '/my_engine/users/auth'
-
-  config.cas_base_url = 'https://login.wina-gent.be/cas'
-
-  # you can override these if you need to, but cas_base_url is usually enough
-  # config.cas_login_url = "https://cas.myorganization.com/login"
-  # config.cas_logout_url = "https://cas.myorganization.com/logout"
-  # config.cas_validate_url = "https://cas.myorganization.com/serviceValidate"
-
-  # The CAS specification allows for the passing of a follow URL to be displayed when
-  # a user logs out on the CAS server. RubyCAS-Server also supports redirecting to a
-  # URL via the destination param. Set either of these urls and specify either nil,
-  # 'destination' or 'follow' as the logout_url_param. If the urls are blank but
-  # logout_url_param is set, a default will be detected for the service.
-  # config.cas_destination_url = 'https://cas.myorganization.com'
-  # config.cas_follow_url = 'https://cas.myorganization.com'
-  # config.cas_logout_url_param = nil
-
-  # You can specify the name of the destination argument with the following option.
-  # e.g. the following option will change it from 'destination' to 'url'
-  # config.cas_destination_logout_param_name = 'url'
-
-  # By default, devise_cas_authenticatable will create users.  If you would rather
-  # require user records to already exist locally before they can authenticate via
-  # CAS, uncomment the following line.
-  # config.cas_create_user = false
-
-  # You can enable Single Sign Out, which by default is disabled.
-  # config.cas_enable_single_sign_out = true
-
-  # If you don't want to use the username returned from your CAS server as the unique
-  # identifier, but some other field passed in cas_extra_attributes, you can specify
-  # the field name here.
-  # config.cas_user_identifier = nil
-
-  # If you want to use the Devise Timeoutable module with single sign out,
-  # uncommenting this will redirect timeouts to the logout url, so that the CAS can
-  # take care of signing out the other serviced applocations. Note that each
-  # application manages timeouts independently, so one application timing out will
-  # kill the session on all applications serviced by the CAS.
-  # config.warden do |manager|
-  #   manager.failure_app = DeviseCasAuthenticatable::SingleSignOut::WardenFailureApp
-  # end
-
-  # If you need to specify some extra configs for rubycas-client, you can do this via:
-  # config.cas_client_config_options = {
-  #     logger: Rails.logger
-  # }
 end
diff --git a/config/initializers/zeuswpi.rb b/config/initializers/zeuswpi.rb
new file mode 100644
index 0000000..52f167f
--- /dev/null
+++ b/config/initializers/zeuswpi.rb
@@ -0,0 +1,38 @@
+require 'omniauth-oauth2'
+
+module OmniAuth
+  module Strategies
+    class Zeuswpi < OmniAuth::Strategies::OAuth2
+
+      option :provider_ignores_state, true
+
+      # Give your strategy a name.
+      option :name, 'zeuswpi'
+
+      # This is where you pass the options you would pass when
+      # initializing your consumer from the OAuth gem.
+      option :client_options, {
+        site:          'https://adams.ugent.be',
+        authorize_url: '/oauth/oauth2/authorize/',
+        token_url:     '/oauth/oauth2/token/',
+      }
+
+      # These are called after authentication has succeeded. If
+      # possible, you should try to set the UID without making
+      # additional calls (if the user id is returned with the token
+      # or as a URI parameter). This may not be possible with all
+      # providers.
+      uid{ raw_info['username'] }
+
+      extra do
+        {
+          'raw_info' => raw_info
+        }
+      end
+
+      def raw_info
+        @raw_info ||= access_token.get('/oauth/api/current_user/').parsed
+      end
+    end
+  end
+end
diff --git a/config/routes.rb b/config/routes.rb
index e465b0c..bf1b9d5 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,5 +1,7 @@
 Rails.application.routes.draw do
-  devise_for :users
+  devise_for :users, controllers: {
+    omniauth_callbacks: 'callbacks'
+  }
 
   devise_scope :user do
     delete '/sign_out', to: 'devise/sessions#destroy'
diff --git a/db/migrate/20150908091028_devise_create_users.rb b/db/migrate/20150908091028_devise_create_users.rb
index 32b41e8..2d83040 100644
--- a/db/migrate/20150908091028_devise_create_users.rb
+++ b/db/migrate/20150908091028_devise_create_users.rb
@@ -1,12 +1,8 @@
 class DeviseCreateUsers < ActiveRecord::Migration
   def change
     create_table(:users) do |t|
-      t.string :username, index: true, unique: true
-
+      t.string :name, index: true, unique: true
       t.integer :balance, null: false, default: 0, index: true
-
-      t.string :name, null: false
-      t.boolean :debt_allowed, null: false, default: false
       t.boolean :penning, null: false, default: false
 
       t.timestamps null: false
diff --git a/db/migrate/20150908092731_create_clients.rb b/db/migrate/20150908092731_create_clients.rb
index a820e6c..8e1edff 100644
--- a/db/migrate/20150908092731_create_clients.rb
+++ b/db/migrate/20150908092731_create_clients.rb
@@ -1,7 +1,7 @@
 class CreateClients < ActiveRecord::Migration
   def change
     create_table :clients do |t|
-      t.string :username, null: false, index: true, unique: true
+      t.string :name, null: false, index: true, unique: true
       t.string :key, null: false,  index: true, unique: true
 
       t.timestamps null: false
diff --git a/db/schema.rb b/db/schema.rb
index 8e6189a..1ba8749 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -14,14 +14,14 @@
 ActiveRecord::Schema.define(version: 20170123151219) do
 
   create_table "clients", force: :cascade do |t|
-    t.string   "username",   null: false
+    t.string   "name",       null: false
     t.string   "key",        null: false
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
   end
 
   add_index "clients", ["key"], name: "index_clients_on_key"
-  add_index "clients", ["username"], name: "index_clients_on_username"
+  add_index "clients", ["name"], name: "index_clients_on_name"
 
   create_table "clients_roles", id: false, force: :cascade do |t|
     t.integer "client_id"
@@ -85,16 +85,14 @@ ActiveRecord::Schema.define(version: 20170123151219) do
   add_index "transactions", ["issuer_type", "issuer_id"], name: "index_transactions_on_issuer_type_and_issuer_id"
 
   create_table "users", force: :cascade do |t|
-    t.string   "username"
-    t.integer  "balance",      default: 0,     null: false
-    t.string   "name",                         null: false
-    t.boolean  "debt_allowed", default: false, null: false
-    t.boolean  "penning",      default: false, null: false
-    t.datetime "created_at",                   null: false
-    t.datetime "updated_at",                   null: false
+    t.string   "name"
+    t.integer  "balance",    default: 0,     null: false
+    t.boolean  "penning",    default: false, null: false
+    t.datetime "created_at",                 null: false
+    t.datetime "updated_at",                 null: false
   end
 
   add_index "users", ["balance"], name: "index_users_on_balance"
-  add_index "users", ["username"], name: "index_users_on_username"
+  add_index "users", ["name"], name: "index_users_on_name"
 
 end