GRN2-155: Begin preparing for removal of Twitter accounts (#615)

* Add twitter deprecation message

* Fix rspec test

* Extract room switch to its own method

* update method name

app/controllers/sessions_controller.rb

@@ -51,6 +51,10 @@ class SessionsController < ApplicationController
       @auth = request.env['omniauth.auth']
       @user_exists = check_user_exists
 
+      if !@user_exists && @auth['provider'] == "twitter"
+        return redirect_to root_path, flash: { alert: I18n.t("registration.deprecated.twitter_signup") }
+      end
+
       # If using invitation registration method, make sure user is invited
       return redirect_to root_path, flash: { alert: I18n.t("registration.invite.no_invite") } unless passes_invite_reqs
 
@@ -70,6 +74,16 @@ class SessionsController < ApplicationController
                                              invite_registration && !@user_exists
 
       login(user)
+
+      if @auth['provider'] == "twitter"
+        flash[:alert] = if allow_user_signup? && allow_greenlight_accounts?
+                          I18n.t("registration.deprecated.twitter_signin",
+                            link: signup_path(old_twitter_user_id: user.id))
+                        else
+                          I18n.t("registration.deprecated.twitter_signin",
+                            link: signin_path(old_twitter_user_id: user.id))
+                        end
+      end
     rescue => e
         logger.error "Error authenticating via omniauth: #{e}"
         omniauth_fail

app/controllers/users_controller.rb

@@ -62,6 +62,10 @@ class UsersController < ApplicationController
 
   # GET /signin
   def signin
+    unless params[:old_twitter_user_id].nil? && session[:old_twitter_user_id].nil?
+      flash[:alert] = I18n.t("registration.deprecated.new_signin")
+      session[:old_twitter_user_id] = params[:old_twitter_user_id] unless params[:old_twitter_user_id].nil?
+    end
   end
 
   # GET /signup
@@ -75,6 +79,12 @@ class UsersController < ApplicationController
       session[:invite_token] = params[:invite_token]
     end
 
+    unless params[:old_twitter_user_id].nil? && session[:old_twitter_user_id].nil?
+      logout
+      flash.now[:alert] = I18n.t("registration.deprecated.new_signin")
+      session[:old_twitter_user_id] = params[:old_twitter_user_id] unless params[:old_twitter_user_id].nil?
+    end
+
     @user = User.new
   end
 
@@ -175,7 +185,7 @@ class UsersController < ApplicationController
   end
 
   def ensure_unauthenticated
-    redirect_to current_user.main_room if current_user
+    redirect_to current_user.main_room if current_user && params[:old_twitter_user_id].nil?
   end
 
   def user_params

app/helpers/application_helper.rb

@@ -33,7 +33,11 @@ module ApplicationHelper
 
   # Determines which providers can show a login button in the login modal.
   def iconset_providers
-    configured_providers & [:google, :twitter, :microsoft_office365]
+    providers = configured_providers & [:google, :twitter, :microsoft_office365]
+
+    providers.delete(:twitter) if session[:old_twitter_user_id]
+
+    providers
   end
 
   # Generates the login URL for a specific provider.

app/helpers/sessions_helper.rb

@@ -19,6 +19,8 @@
 module SessionsHelper
   # Logs a user into GreenLight.
   def login(user)
+    migrate_twitter_user(user)
+
     session[:user_id] = user.id
 
     # If there are not terms, or the user has accepted them, check for email verification
@@ -97,4 +99,24 @@ module SessionsHelper
         hd_opts
       end
   end
+
+  def migrate_twitter_user(user)
+    if !session["old_twitter_user_id"].nil? && user.provider != "twitter"
+      old_user = User.find(session["old_twitter_user_id"])
+
+      old_user.rooms.each do |room|
+        room.owner = user
+
+        room.name = "Old " + room.name if room.id == old_user.main_room.id
+
+        room.save!
+      end
+
+      # Query for the old user again so the migrated rooms don't get deleted
+      old_user.reload
+      old_user.destroy!
+
+      session["old_twitter_user_id"] = nil
+    end
+  end
 end

app/views/shared/_flash_messages.html.erb

@@ -17,17 +17,17 @@
   <% if key.eql? "success" %>
     <div class="alert alert-success alert-dismissible text-center mb-0">
       <button type="button" class="close" data-dismiss="alert">&times</button>
-      <%= value %>
+      <%= value.html_safe %>
     </div>
   <% elsif key.eql? "alert" %>
     <div class="alert alert-danger alert-dismissible text-center mb-0">
       <button type="button" class="close" data-dismiss="alert">&times</button>
-      <%= value %>
+      <%= value.html_safe %>
     </div>
   <% elsif key.eql? "info" %>
     <div class="alert alert-info alert-dismissible text-center mb-0">
       <button type="button" class="close" data-dismiss="alert">&times</button>
-      <%= value %>
+      <%= value.html_safe %>
     </div>
   <% end %>
 <% end %>

config/environments/test.rb

@@ -49,4 +49,6 @@ Rails.application.configure do
   # Use standalone BigBlueButton server.
   config.bigbluebutton_endpoint = config.bigbluebutton_endpoint_default
   config.bigbluebutton_secret = config.bigbluebutton_secret_default
+
+  config.loadbalanced_configuration = false
 end

config/locales/en.yml

@@ -331,6 +331,10 @@ en:
       signup: Your account was successfully created. It has been sent to an administrator for approval.
     banned:
       fail: You do not have access to this application. If you believe this is a mistake, please contact your administrator. 
+    deprecated:
+      new_signin: Select a new login method for you account. All your rooms from your old account will be migrated to the new account
+      twitter_signin: Signing in via Twitter has been deprecated and will be removed in the next release. Click <a href="%{link}"> here </a> to move your account to a new authentication method
+      twitter_signup: Sign up via Twitter has been deprecated. Please use a different sign up method
     invite:
       fail: Your token is either invalid or has expired. If you believe this is a mistake, please contact your administrator.
       no_invite: You do not have an invitation to join. Please contact your administrator to receive one.

spec/controllers/sessions_controller_spec.rb

@@ -156,6 +156,29 @@ describe SessionsController, type: :controller do
       expect(@request.session[:user_id]).to eql(user.id)
       expect(response).to redirect_to(admins_path)
     end
+
+    it "should migrate old rooms from the twitter account to the new user" do
+      twitter_user = User.create(name: "Twitter User", email: "user@twitter.com", image: "example.png",
+        username: "twitteruser", email_verified: true, provider: 'twitter', social_uid: "twitter-user")
+
+      room = Room.new(name: "Test")
+      room.owner = twitter_user
+      room.save!
+
+      post :create, params: {
+        session: {
+          email: @user1.email,
+          password: 'example',
+        },
+      }, session: {
+        old_twitter_user_id: twitter_user.id
+      }
+
+      @user1.reload
+      expect(@user1.rooms.count).to eq(3)
+      expect(@user1.rooms.find { |r| r.name == "Old Home Room" }).to_not be_nil
+      expect(@user1.rooms.find { |r| r.name == "Test" }).to_not be_nil
+    end
   end
 
   describe "GET/POST #omniauth" do
@@ -173,6 +196,18 @@ describe SessionsController, type: :controller do
         },
       )
 
+      OmniAuth.config.mock_auth[:google] = OmniAuth::AuthHash.new(
+        provider: "google",
+        uid: "google-user",
+        info: {
+          email: "user@google.com",
+          name: "Google User",
+          nickname: "googleuser",
+          image: "touch.png",
+          customer: 'customer1',
+        }
+      )
+
       OmniAuth.config.mock_auth[:bn_launcher] = OmniAuth::AuthHash.new(
         provider: "bn_launcher",
         uid: "bn-launcher-user",
@@ -190,14 +225,13 @@ describe SessionsController, type: :controller do
       }
     end
 
-    unless Rails.configuration.omniauth_bn_launcher
+    it "should create and login user with omniauth google" do
-      it "should create and login user with omniauth twitter" do
+      request.env["omniauth.auth"] = OmniAuth.config.mock_auth[:google]
-        request.env["omniauth.auth"] = OmniAuth.config.mock_auth[:twitter]
+      get :omniauth, params: { provider: :google }
-        get :omniauth, params: { provider: :twitter }
 
       u = User.last
-        expect(u.provider).to eql("twitter")
+      expect(u.provider).to eql("google")
-        expect(u.email).to eql("user@twitter.com")
+      expect(u.email).to eql("user@google.com")
       expect(@request.session[:user_id]).to eql(u.id)
     end
 
@@ -213,7 +247,7 @@ describe SessionsController, type: :controller do
 
     it "should redirect to root on invalid omniauth login" do
       request.env["omniauth.auth"] = :invalid_credentials
-        get :omniauth, params: { provider: :twitter }
+      get :omniauth, params: { provider: :google }
 
       expect(response).to redirect_to(root_path)
     end
@@ -224,6 +258,48 @@ describe SessionsController, type: :controller do
       expect(response).to redirect_to(root_path)
     end
 
+    context 'twitter deprecation' do
+      it "should not allow new user sign up with omniauth twitter" do
+        request.env["omniauth.auth"] = OmniAuth.config.mock_auth[:twitter]
+        get :omniauth, params: { provider: :twitter }
+
+        expect(response).to redirect_to(root_path)
+        expect(flash[:alert]).to eq(I18n.t("registration.deprecated.twitter_signup"))
+      end
+
+      it "should notify twitter users that twitter is deprecated" do
+        allow(Rails.configuration).to receive(:allow_user_signup).and_return(true)
+        twitter_user = User.create(name: "Twitter User", email: "user@twitter.com", image: "example.png",
+          username: "twitteruser", email_verified: true, provider: 'twitter', social_uid: "twitter-user")
+
+        request.env["omniauth.auth"] = OmniAuth.config.mock_auth[:twitter]
+        get :omniauth, params: { provider: :twitter }
+
+        expect(flash[:alert]).to eq(I18n.t("registration.deprecated.twitter_signin",
+          link: signup_path(old_twitter_user_id: twitter_user.id)))
+      end
+
+      it "should migrate rooms from the twitter account to the google account" do
+        twitter_user = User.create(name: "Twitter User", email: "user@twitter.com", image: "example.png",
+          username: "twitteruser", email_verified: true, provider: 'twitter', social_uid: "twitter-user")
+
+        room = Room.new(name: "Test")
+        room.owner = twitter_user
+        room.save!
+
+        request.env["omniauth.auth"] = OmniAuth.config.mock_auth[:google]
+        get :omniauth, params: { provider: :google }, session: { old_twitter_user_id: twitter_user.id }
+
+        u = User.last
+        expect(u.provider).to eql("google")
+        expect(u.email).to eql("user@google.com")
+        expect(@request.session[:user_id]).to eql(u.id)
+        expect(u.rooms.count).to eq(3)
+        expect(u.rooms.find { |r| r.name == "Old Home Room" }).to_not be_nil
+        expect(u.rooms.find { |r| r.name == "Test" }).to_not be_nil
+      end
+    end
+
     context 'registration notification emails' do
       before do
         allow(Rails.configuration).to receive(:enable_email_verification).and_return(true)
@@ -253,7 +329,6 @@ describe SessionsController, type: :controller do
           .to change { ActionMailer::Base.deliveries.count }.by(1)
       end
     end
-    end
 
     it "should not create session without omniauth env set for bn_launcher" do
       get :omniauth, params: { provider: 'bn_launcher' }