Added setting for admin to limit the number of rooms for the user (#607)

app/assets/stylesheets/admins.scss

@@ -46,3 +46,12 @@
 .authentication-required{
   padding-top: 2px;
 }
+
+#site_settings {
+  .colorinput-color {
+    text-align: center;
+    padding-top: 4px;
+    height: 2rem;
+    width: 2rem;
+  }
+}
\ No newline at end of file

app/controllers/admins_controller.rb

@@ -23,7 +23,7 @@ class AdminsController < ApplicationController
 
   manage_users = [:edit_user, :promote, :demote, :ban_user, :unban_user, :approve]
   site_settings = [:branding, :coloring, :coloring_lighten, :coloring_darken,
-                   :registration_method, :room_authentication]
+                   :registration_method, :room_authentication, :room_limit]
 
   authorize_resource class: false
   before_action :find_user, only: manage_users
@@ -153,6 +153,12 @@ class AdminsController < ApplicationController
     end
   end
 
+  # POST /admins/room_limit
+  def room_limit
+    @settings.update_value("Room Limit", params[:limit])
+    redirect_to admins_path, flash: { success: I18n.t("administrator.flash.settings") }
+  end
+
   private
 
   def find_user

app/controllers/rooms_controller.rb

@@ -33,6 +33,8 @@ class RoomsController < ApplicationController
   def create
     redirect_to(root_path) && return unless current_user
 
+    return redirect_to current_user.main_room, flash: { alert: I18n.t("room.room_limit") } if room_limit_exceeded
+
     @room = Room.new(name: room_params[:name])
     @room.owner = current_user
     @room.room_settings = create_room_settings_string(room_params[:mute_on_join], room_params[:client])
@@ -279,4 +281,14 @@ class RoomsController < ApplicationController
     Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Authentication") == "true" &&
       current_user.nil?
   end
+
+  def room_limit_exceeded
+    limit = Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+
+    # Does not apply to admin
+    # 15+ option is used as unlimited
+    return false if current_user&.has_role?(:admin) || limit == 15
+
+    current_user.rooms.count >= limit
+  end
 end

app/helpers/admins_helper.rb

@@ -53,4 +53,8 @@ module AdminsHelper
         I18n.t("administrator.site_settings.registration.methods.approval")
       end
   end
+
+  def room_limit_number
+    Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+  end
 end

app/helpers/rooms_helper.rb

@@ -27,4 +27,26 @@ module RoomsHelper
     Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Authentication") == "true" &&
       current_user.nil?
   end
+
+  def number_of_rooms_allowed
+    Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+  end
+
+  def room_limit_exceeded
+    limit = Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+
+    # Does not apply to admin or users that aren't signed in
+    # 15+ option is used as unlimited
+    return false if !current_user || current_user&.has_role?(:admin) || limit == 15
+
+    current_user.rooms.length >= limit
+  end
+
+  def current_room_exceeds_limit(room)
+    # Get how many rooms need to be deleted to reach allowed room number
+    limit = Setting.find_or_create_by!(provider: user_settings_provider).get_value("Room Limit").to_i
+    @diff = current_user.rooms.count - limit
+
+    @diff.positive? && current_user.rooms.pluck(:id).index(room.id) + 1 > limit
+  end
 end

app/models/setting.rb

@@ -41,6 +41,8 @@ class Setting < ApplicationRecord
         Rails.configuration.registration_method_default
       when "Room Authentication"
         false
+      when "Room Limit"
+        Rails.configuration.number_of_rooms_default
       end
     end
   end

app/views/rooms/show.html.erb

@@ -13,6 +13,12 @@
 # with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 %>
 
+<% exceeds_limit = current_room_exceeds_limit(@room)%>
+<% if exceeds_limit%>
+  <div class="alert alert-danger alert-dismissible text-center mb-0">
+    <%= t("room.room_limit_exceeded", difference: @diff) %>
+  </div>
+<% end %>
 <div class="background pb-1">
   <div class="container">
     <div class="row pt-9">
@@ -27,6 +33,7 @@
           <% end %>
         </div>
         <h4 class="text-left mb-6"><%= @room.sessions %> <%= t("room.sessions") %> | <%= @recordings.length %> <%= t("room.recordings") %></h4>
+        <% unless exceeds_limit %>
           <label class="form-label"><%= t("room.invite_participants") %></label>
           <div class="row">
             <div class="col-lg-5 col-md-12 mt-2 pr-0">
@@ -56,13 +63,16 @@
               </div>
             </div>
           </div>
+        <% end %>
       </div>
       <div class="offset-lg-1 col-lg-3 col-sm-12 force-bottom mt-5 pr-0">
         <% if @is_running %>
           <%= button_to t("room.join"), room_path(@room), class: "btn btn-primary btn-block px-7 start-button float-right" %>
         <% else %>
+          <% unless exceeds_limit %>
             <%= button_to t("room.start"), start_room_path(@room), class: "btn btn-primary btn-block px-7 start-button float-right" %>
           <% end %>
+        <% end %>
       </div>
     </div>
 
@@ -82,7 +92,9 @@
           <%= render "shared/modals/delete_room_modal", room: room %>
         <% end %>
       <% end %>
+      <% unless room_limit_exceeded %>
         <%= render "shared/components/create_room_block"%>
+      <% end %>
     </div>
   </div>
 </div>

app/views/shared/admin_settings/_site_settings.html.erb

@@ -78,7 +78,7 @@
       </div>
     </div>
   </div>
-  <div class="row">
+  <div class="mb-6 row">
     <div class="col-12">
       <div class="form-group">
         <label class="form-label"><%= t("administrator.site_settings.authentication.title") %></label>
@@ -99,4 +99,38 @@
       </div>
     </div>
   </div>
+  <div class="row">
+    <div class="col-12">
+      <div class="form-group">
+        <label class="form-label"><%= t("administrator.site_settings.rooms.title") %></label>
+        <label class="form-label text-muted"><%= t("administrator.site_settings.rooms.info") %></label>
+        <div class="row gutters-xs">
+          <div class="col-auto">
+            <label class="colorinput">
+              <%= button_to admin_room_limit_path(limit: 1), class: "colorinput-input" do %><% end %>
+              <span class="colorinput-color <%= room_limit_number == 1 ? "btn-primary" : "btn-outline-primary" %>">1</span>
+            </label>
+          </div>
+          <div class="col-auto">
+            <label class="colorinput">
+              <%= button_to admin_room_limit_path(limit: 5), class: "colorinput-input" do %><% end %>
+              <span class="colorinput-color <%= room_limit_number == 5 ? "btn-primary" : "btn-outline-primary" %>">5</span>
+            </label>
+          </div>
+          <div class="col-auto">
+            <label class="colorinput">
+              <%= button_to admin_room_limit_path(limit: 10), class: "colorinput-input" do %><% end %>
+              <span class="colorinput-color <%= room_limit_number == 10 ? "btn-primary" : "btn-outline-primary" %>">10</span>
+            </label>
+          </div>
+          <div class="col-auto">
+            <label class="colorinput">
+              <%= button_to admin_room_limit_path(limit: 15), class: "colorinput-input" do %><% end %>
+              <span class="colorinput-color <%= room_limit_number == 15 ? "btn-primary" : "btn-outline-primary" %>">15+</span>
+            </label>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
 </div>

config/application.rb

@@ -130,6 +130,9 @@ module Greenlight
     # Default registration method if the user does not specify one
     config.registration_method_default = config.registration_methods[:open]
 
+    # Default limit on number of rooms users can create
+    config.number_of_rooms_default = 15
+
     # Default admin password
     config.admin_password_default = ENV['ADMIN_PASSWORD'] || 'administrator'
   end

config/locales/en.yml

@@ -55,6 +55,9 @@ en:
           approval: Approve/Decline
           invite: Join by Invitation
           open: Open Registration
+      rooms:
+        info: Limits the number of rooms that a user can have (including Home Room). This setting does not apply to administrators.
+        title: Number of Rooms per User
       subtitle: Customize Greenlight
       title: Site Settings
     flash:
@@ -353,6 +356,8 @@ en:
     owner: Owner
     no_sessions: This room has no sessions, yet!
     recordings: Room Recordings
+    room_limit: You have reached the maximum number of rooms allowed
+    room_limit_exceeded: You have exceeded the number of rooms allowed. Please delete %{difference} room(s) to access this room.
     sessions: Sessions
     settings: Room Settings
     start: Start

config/routes.rb

@@ -51,6 +51,7 @@ Rails.application.routes.draw do
     post '/invite', to: 'admins#invite', as: :invite_user
     post '/registration_method/:method', to: 'admins#registration_method', as: :admin_change_registration
     post '/approve/:user_uid', to: 'admins#approve', as: :admin_approve
+    post '/room_limit', to: 'admins#room_limit', as: :admin_room_limit
   end
 
   scope '/themes' do

spec/controllers/admins_controller_spec.rb

@@ -247,7 +247,9 @@ describe AdminsController, type: :controller do
         expect(response).to redirect_to(admins_path)
       end
     end
+  end
 
+  describe "Site Settings" do
     context "POST #registration_method" do
       it "changes the registration method for the given context" do
         allow(Rails.configuration).to receive(:enable_email_verification).and_return(true)
@@ -294,5 +296,21 @@ describe AdminsController, type: :controller do
         expect(response).to redirect_to(admins_path)
       end
     end
+
+    context "POST #room_limit" do
+      it "changes the room limit setting" do
+        allow(Rails.configuration).to receive(:loadbalanced_configuration).and_return(true)
+        allow_any_instance_of(User).to receive(:greenlight_account?).and_return(true)
+
+        @request.session[:user_id] = @admin.id
+
+        post :room_limit, params: { limit: 5 }
+
+        feature = Setting.find_by(provider: "provider1").features.find_by(name: "Room Limit")
+
+        expect(feature[:value]).to eq("5")
+        expect(response).to redirect_to(admins_path)
+      end
+    end
   end
 end

spec/controllers/rooms_controller_spec.rb

@@ -129,7 +129,7 @@ describe RoomsController, type: :controller do
       expect(response).to redirect_to(r)
     end
 
-    it "it should redirect to root if not logged in" do
+    it "should redirect to root if not logged in" do
       expect do
         name = Faker::Games::Pokemon.name
         post :create, params: { room: { name: name } }
@@ -138,7 +138,7 @@ describe RoomsController, type: :controller do
       expect(response).to redirect_to(root_path)
     end
 
-    it "it should redirect back to main room with error if it fails" do
+    it "should redirect back to main room with error if it fails" do
       @request.session[:user_id] = @owner.id
 
       room_params = { name: "", "client": "html5", "mute_on_join": "1" }
@@ -148,6 +148,19 @@ describe RoomsController, type: :controller do
       expect(flash[:alert]).to be_present
       expect(response).to redirect_to(@owner.main_room)
     end
+
+    it "redirects to main room if room limit is reached" do
+      allow_any_instance_of(Setting).to receive(:get_value).and_return(1)
+
+      @request.session[:user_id] = @owner.id
+
+      room_params = { name: Faker::Games::Pokemon.name, "client": "html5", "mute_on_join": "1" }
+
+      post :create, params: { room: room_params }
+
+      expect(flash[:alert]).to be_present
+      expect(response).to redirect_to(@owner.main_room)
+    end
   end
 
   describe "POST #join" do