LTI-257: Added shared rooms feature

app/controllers/concerns/bbb_helper.rb

@@ -28,17 +28,17 @@ module BbbHelper
   # Sets a BigBlueButtonApi object for interacting with the API.
   def bbb
     @bbb_credentials ||= initialize_bbb_credentials
-    bbb_url = remove_slash(@bbb_credentials.endpoint(@room.tenant))
-    bbb_secret = @bbb_credentials.secret(@room.tenant)
+    bbb_url = remove_slash(@bbb_credentials.endpoint(room.tenant))
+    bbb_secret = @bbb_credentials.secret(room.tenant)
     BigBlueButton::BigBlueButtonApi.new(bbb_url, bbb_secret, '1.0', Rails.logger)
   rescue StandardError => e
     logger.error("Error in creating BBB object: #{e}")
     raise RoomsError::CustomError.new(code: 500, message: 'There was an error initializing BigBlueButton credentials', key: 'BigBlueButton Error')
   end
 
-  # Generates URL for joining the current @room meeting.
+  # Generates URL for joining the current room meeting.
   def join_meeting_url
-    return unless @room && @user
+    return unless room && @user
 
     unless bbb
       @error = {
@@ -51,40 +51,40 @@ def join_meeting_url
     end
 
     create_meeting
-    role = @user.moderator?(bigbluebutton_moderator_roles) || string_to_bool(@room.allModerators) ? 'moderator' : 'viewer'
+    role = @user.moderator?(bigbluebutton_moderator_roles) || string_to_bool(room.allModerators) ? 'moderator' : 'viewer'
     join_options = {}
     join_options[:createTime] = meeting_info[:createTime]
     join_options[:userID] = @user.uid
-    bbb.join_meeting_url(@room.handler, @user.username(t("default.bigbluebutton.#{role}")), @room.attributes[role], join_options)
+    bbb.join_meeting_url(room.handler, @user.username(t("default.bigbluebutton.#{role}")), room.attributes[role], join_options)
   end
 
-  # Create meeting for the current @room.
+  # Create meeting for the current room.
   def create_meeting
-    record = bigbluebutton_recording_enabled ? string_to_bool(@room.record) : false
+    record = bigbluebutton_recording_enabled ? string_to_bool(room.record) : false
     create_options = {
-      moderatorPW: @room.moderator,
-      attendeePW: @room.viewer,
-      welcome: @room.welcome,
+      moderatorPW: room.moderator,
+      attendeePW: room.viewer,
+      welcome: room.welcome,
       record: record,
       logoutURL: autoclose_url,
-      lockSettingsDisableCam: string_to_bool(@room.lockSettingsDisableCam),
-      lockSettingsDisableMic: string_to_bool(@room.lockSettingsDisableMic),
-      lockSettingsDisableNote: string_to_bool(@room.lockSettingsDisableNote),
-      lockSettingsDisablePrivateChat: string_to_bool(@room.lockSettingsDisablePrivateChat),
-      lockSettingsDisablePublicChat: string_to_bool(@room.lockSettingsDisablePublicChat),
-      autoStartRecording: string_to_bool(@room.autoStartRecording),
-      allowStartStopRecording: string_to_bool(@room.allowStartStopRecording),
-      'meta_description': @room.description.truncate(128, separator: ' '),
+      lockSettingsDisableCam: string_to_bool(room.lockSettingsDisableCam),
+      lockSettingsDisableMic: string_to_bool(room.lockSettingsDisableMic),
+      lockSettingsDisableNote: string_to_bool(room.lockSettingsDisableNote),
+      lockSettingsDisablePrivateChat: string_to_bool(room.lockSettingsDisablePrivateChat),
+      lockSettingsDisablePublicChat: string_to_bool(room.lockSettingsDisablePublicChat),
+      autoStartRecording: string_to_bool(room.autoStartRecording),
+      allowStartStopRecording: string_to_bool(room.allowStartStopRecording),
+      'meta_description': room.description.truncate(128, separator: ' '),
     }
     # Send the create request.
-    bbb.create_meeting(@room.name, @room.handler, create_options)
+    bbb.create_meeting(room.name, room.handler, create_options)
   end
 
-  # Perform ends meeting for the current @room.
+  # Perform ends meeting for the current room.
   def end_meeting
     response = { returncode: 'FAILED' }
     begin
-      response = bbb.end_meeting(@room.handler, @room.moderator)
+      response = bbb.end_meeting(room.handler, room.moderator)
     rescue BigBlueButton::BigBlueButtonException
       # this can be thrown if all participants left (clicked 'x' before pressing the end button)
     end
@@ -95,30 +95,30 @@ def end_meeting
   def meeting_info
     info = { returncode: 'FAILED' }
     begin
-      info = bbb.get_meeting_info(@room.handler, @user)
+      info = bbb.get_meeting_info(room.handler, @user)
     rescue BigBlueButton::BigBlueButtonException => e
       logger.error(e.to_s)
     end
     info
   end
 
-  # Checks if the meeting for current @room is running.
+  # Checks if the meeting for current room is running.
   def meeting_running?
-    bbb.is_meeting_running?(@room.handler)
+    bbb.is_meeting_running?(room.handler)
   rescue BigBlueButton::BigBlueButtonException => e
     logger.error(e.to_s)
   end
 
   # Fetches all recordings for a room.
   def recordings
-    res = Rails.cache.fetch("#{@room.handler}/#{RECORDINGS_KEY}", expires_in: 30.minutes) if Rails.configuration.cache_enabled
-    res ||= bbb.get_recordings(meetingID: @room.handler)
+    res = Rails.cache.fetch("#{room.handler}/#{RECORDINGS_KEY}", expires_in: 30.minutes) if Rails.configuration.cache_enabled
+    res ||= bbb.get_recordings(meetingID: room.handler)
     recordings_formatted(res)
   end
 
   # Fetch an individual recording
   def recording(record_id)
-    r = bbb.get_recordings(meetingID: @room.handler, recordID: record_id)
+    r = bbb.get_recordings(meetingID: room.handler, recordID: record_id)
     unless r.key?(:error)
 
       r[:playbacks] = if !r[:playback] || !r[:playback][:format]
@@ -137,7 +137,7 @@ def recording(record_id)
 
   def server_running?
     begin
-      bbb.get_meeting_info(@room.handler, @user)
+      bbb.get_meeting_info(room.handler, @user)
     rescue BigBlueButton::BigBlueButtonException => e
       logger.info('We could not find a meeting with that meeting ID')
       return e.to_s
@@ -148,34 +148,34 @@ def server_running?
 
   # Deletes a recording.
   def delete_recording(record_id)
-    Rails.cache.delete("#{@room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
+    Rails.cache.delete("#{room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
     bbb.delete_recordings(record_id)
   end
 
   # Publishes a recording.
   def publish_recording(record_id)
-    Rails.cache.delete("#{@room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
+    Rails.cache.delete("#{room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
     bbb.publish_recordings(record_id, true)
   end
 
   # Unpublishes a recording.
   def unpublish_recording(record_id)
-    Rails.cache.delete("#{@room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
+    Rails.cache.delete("#{room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
     bbb.publish_recordings(record_id, false)
   end
 
   # Updates a recording.
   def update_recording(record_id, meta)
-    Rails.cache.delete("#{@room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
+    Rails.cache.delete("#{room.handler}/#{RECORDINGS_KEY}") if Rails.configuration.cache_enabled
     meta[:recordID] = record_id
     bbb.send_api_request('updateRecordings', meta)
   end
 
-  # Check if the current @user must wait for moderator to join the current @room.
+  # Check if the current @user must wait for moderator to join the current room.
   def wait_for_mod?
-    return unless @room && @user
+    return unless room && @user
 
-    wait_setting = @room.waitForModerator != '0'
+    wait_setting = room.waitForModerator != '0'
     wait_setting && [email protected]?(bigbluebutton_moderator_roles)
   end
 
@@ -268,4 +268,14 @@ def recordings_formatted(res)
   def string_to_bool(value)
     ActiveModel::Type::Boolean.new.cast(value)
   end
+
+  # If the room is using a shared code, then use the shared room's recordings and bbb link
+  def room
+    use_shared_room? ? @shared_room : @room
+  end
+
+  # Returns true only if @room.use_shared_code and the shared code is valid
+  def use_shared_room?
+    @room.use_shared_code && Room.where(code: @room.shared_code, tenant: @room.tenant).exists?
+  end
 end

app/controllers/concerns/broker_helper.rb

@@ -21,12 +21,12 @@ module BrokerHelper
   # Fetch tenant settings from the broker
   def tenant_settings(options = {})
     tenant = options[:tenant] || @room&.tenant || ''
-    Rails.cache.fetch("rooms/tenant_settings/#{tenant}", expires_in: 1.hour) do
-      bbbltibroker_url = omniauth_bbbltibroker_url("/api/v1/tenants/#{tenant}")
-      get_response = RestClient.get(bbbltibroker_url, 'Authorization' => "Bearer #{omniauth_client_token(omniauth_bbbltibroker_url)}")
+    # Rails.cache.fetch("rooms/tenant_settings/#{tenant}", expires_in: 1.hour) do
+    bbbltibroker_url = omniauth_bbbltibroker_url("/api/v1/tenants/#{tenant}")
+    get_response = RestClient.get(bbbltibroker_url, 'Authorization' => "Bearer #{omniauth_client_token(omniauth_bbbltibroker_url)}")
 
-      JSON.parse(get_response)
-    end
+    JSON.parse(get_response)
+    # end
   rescue StandardError => e
     Rails.logger.error("Could not fetch tenant credentials from broker. Error message: #{e}")
     nil

app/controllers/rooms_controller.rb

@@ -99,10 +99,16 @@ def create
   # PATCH/PUT /rooms/1.json
   def update
     respond_to do |format|
-      if @room.update(room_params)
+      # block update if shared_code doesn't exist
+      shared_code = room_params[:shared_code]
+      code_found =  shared_code.blank? ? true : Room.where(code: shared_code, tenant: @room.tenant).exists?
+
+      if code_found && @room.update(room_params)
         format.html { redirect_to(room_path(@room, launch_nonce: params[:launch_nonce]), notice: t('default.room.updated')) }
         format.json { render(:show, status: :ok, location: @room) }
       else
+        # If the room wasn't updated because a code was not found then show an error message
+        flash.now[:alert] = code_found ? nil : t('error.room.codenotfound.message')
         format.html { render(:edit) }
         format.json { render(json: @error, status: :unprocessable_entity) }
       end
@@ -267,6 +273,9 @@ def authenticate_user!
   # Use callbacks to share common setup or constraints between actions.
   def set_room
     @room = Room.find_by(id: params[:id])
+    @shared_room = Room.find_by(code: @room.shared_code, tenant: @room.tenant) if @room&.use_shared_code
+    logger.debug("Room with id #{params[:id]} is using shared code: #{@room&.shared_code}") if @room&.use_shared_code
+
     # Exit with error if room was not found
     set_error('notfound', :not_found) && return unless @room
     # Exit with error by re-setting the room to nil if the session for the room.handler is not set
@@ -337,6 +346,9 @@ def room_params
       :all_moderators,
       :hide_name,
       :hide_description,
+      :code,
+      :shared_code,
+      :use_shared_code,
       settings: Room.stored_attributes[:settings]
     )
   end
@@ -353,7 +365,10 @@ def launch_params_to_new_room_params(handler, handler_legacy, launch_params)
       all_moderators: message_has_custom?(launch_params, 'all_moderators') || false,
       hide_name: message_has_custom?(launch_params, 'hide_name') || false,
       hide_description: message_has_custom?(launch_params, 'hide_description') || false,
-      settings: message_has_custom?(launch_params, 'settings') || {}
+      settings: message_has_custom?(launch_params, 'settings') || {},
+      code: '',
+      shared_code: '',
+      use_shared_code: false
     )
   end
 

app/javascript/packs/edit.js

@@ -30,9 +30,7 @@ $(document).on('turbolinks:load', function(){
         if (wait_mod_checked){
             $('#allModerators_checkbox').prop("checked", false);
         }
-    })
-
-
+    })  
 
     function check_record_status(){
         var record_checked = $('#record_checkbox').prop("checked");
@@ -52,4 +50,29 @@ $(document).on('turbolinks:load', function(){
     $('#record_checkbox').on('click', function() {
         check_record_status();
     })
+
+    // If shared room is selected, allow the code field to be editable
+    $('#use_shared_code_checkbox').on('click', function() {
+        var use_shared_code_checked = $('#use_shared_code_checkbox').prop("checked");
+        if (use_shared_code_checked){
+            $('#shared_code_field').prop("disabled", false);
+            $('#shared_code_field').val('');
+        } else {
+            $('#shared_code_field').prop("disabled", true);
+            console.log("code_val: = ",$('#room_code_value').val() )
+            $('#shared_code_field').val($('#room_code_value').val());
+        }
+    })
+
+		function checkSharedCodeCheckboxStatus() {
+			var sharedcode_checked = $('#use_shared_code_checkbox').prop("checked");
+        if (!sharedcode_checked){
+					$('#shared_code_field').prop("disabled", true);
+				} else {
+					$('#shared_code_field').prop("disabled", false);
+				}
+		}
+
+		checkSharedCodeCheckboxStatus();
+
 });

app/models/room.rb

@@ -17,15 +17,19 @@
 #  with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 class Room < ApplicationRecord
   before_save :default_values
+  validates :code, uniqueness: true
 
   store_accessor :settings, [:lockSettingsDisableCam, :lockSettingsDisableMic, :lockSettingsDisablePrivateChat, :lockSettingsDisablePublicChat, :lockSettingsDisableNote]
   store_accessor :settings, [:waitForModerator, :allModerators, :record, :autoStartRecording, :allowStartStopRecording]
+
+  # after_find is used for the following so that rooms that already exist will have these fields upon launch
   after_find :initialize_setting_defaults, if: :settings_blank?
-  after_find :delete_settings
+  after_find :set_empty_code
 
   attr_accessor :can_grade
 
   RECORDING_SETTINGS = [:record, :autoStartRecording, :allowStartStopRecording].freeze
+  CODE_LENGTH = 10
 
   def default_values
     self.handler ||= Digest::SHA1.hexdigest(SecureRandom.uuid)
@@ -101,4 +105,12 @@ def bool_to_binary(value)
 
     '0'
   end
+
+  # Assign a random alphanumeric code to the room if it doesn't already have one
+  # Assign the shared_code to equal to the room's code.
+  def set_empty_code
+    self.code = SecureRandom.alphanumeric(CODE_LENGTH) if code.blank?
+    self.shared_code = code if shared_code.blank?
+    save!
+  end
 end

app/views/rooms/_form.html.erb

@@ -122,6 +122,25 @@
     <hr>
   <% end %>
 
+  <!-- Shared Room Stuff -->
+  <%= form.hidden_field :code, id: 'room_code_value', value: @room.code %> 
+
+  <div class="field form-group input-group w-full pt-4">
+    <%= form.label t('default.room.code') %>
+    <%= form.text_field :shared_code, class: "form-control input mt-1 block disabled:border-slate-200 disabled:text-slate-500 disabled:shadow-none disabled:bg-slate-100", id: 'shared_code_field', disabled: true %>
+  </div>
+
+	<% unless flash[:alert] == nil %>
+		<div class="ml-3 text-sm font-medium text-red-500">
+      <%= flash.alert %>
+    </div>
+	<% end %>
+  <div class="field form-group input-group">
+    <%= form.check_box :use_shared_code, id: 'use_shared_code_checkbox' %>&nbsp;
+    <%= t('default.room.usesharedcode') %>&nbsp;
+    <br>
+  </div>
+
 
   <div class="actions pt-6">
     <div class = "flex-row">