add cancan for authorization

app/controllers/api/api_base_controller.rb

@@ -5,6 +5,15 @@ module Api
     include ActiveStorage::SetCurrent
 
     before_action :authenticate_user!
+    check_authorization
+
+    if Rails.env.production?
+      rescue_from CanCan::AccessDenied do |e|
+        Rollbar.error(e) if defined?(Rollbar)
+
+        render json: { error: e.message }, status: :forbidden
+      end
+    end
 
     private
 

app/controllers/api/attachments_controller.rb

@@ -3,6 +3,7 @@
 module Api
   class AttachmentsController < ApiBaseController
     skip_before_action :authenticate_user!
+    skip_authorization_check
 
     def create
       submitter = Submitter.find_by!(slug: params[:submitter_slug])

app/controllers/api/submissions_controller.rb

@@ -5,21 +5,25 @@ module Api
     UnknownFieldName = Class.new(StandardError)
     UnknownSubmitterName = Class.new(StandardError)
 
-    def create
-      template = current_account.templates.find(params[:template_id])
+    load_and_authorize_resource :template
 
+    before_action do
+      authorize!(:create, Submission)
+    end
+
+    def create
       submissions =
         if (emails = (params[:emails] || params[:email]).presence)
-          Submissions.create_from_emails(template:,
+          Submissions.create_from_emails(template: @template,
                                          user: current_user,
                                          source: :api,
                                          mark_as_sent: params[:send_email] != 'false',
                                          emails:)
         else
-          submissions_attrs = normalize_submissions_params!(submissions_params[:submission], template)
+          submissions_attrs = normalize_submissions_params!(submissions_params[:submission], @template)
 
           Submissions.create_from_submitters(
-            template:,
+            template: @template,
             user: current_user,
             source: :api,
             mark_as_sent: params[:send_email] != 'false',

app/controllers/api/submitter_email_clicks_controller.rb

@@ -3,6 +3,7 @@
 module Api
   class SubmitterEmailClicksController < ApiBaseController
     skip_before_action :authenticate_user!
+    skip_authorization_check
 
     def create
       submitter = Submitter.find_by!(slug: params[:submitter_slug])

app/controllers/api/submitter_form_views_controller.rb

@@ -3,6 +3,7 @@
 module Api
   class SubmitterFormViewsController < ApiBaseController
     skip_before_action :authenticate_user!
+    skip_authorization_check
 
     def create
       submitter = Submitter.find_by!(slug: params[:submitter_slug])

app/controllers/api/templates_controller.rb

@@ -2,10 +2,10 @@
 
 module Api
   class TemplatesController < ApiBaseController
-    before_action :load_template, only: %i[show update]
+    load_and_authorize_resource :template
 
     def index
-      render json: current_account.templates
+      render json: @templates
     end
 
     def show
@@ -28,9 +28,5 @@ module Api
                                        fields: [[:uuid, :submitter_uuid, :name, :type, :required,
                                                  { options: [], areas: [%i[x y w h cell_w attachment_uuid page]] }]])
     end
-
-    def load_template
-      @template = current_account.templates.find(params[:id])
-    end
   end
 end

app/controllers/api/templates_documents_controller.rb

@@ -2,11 +2,11 @@
 
 module Api
   class TemplatesDocumentsController < ApiBaseController
+    load_and_authorize_resource :template
+
     def create
       return head :unprocessable_entity if params[:blobs].blank? && params[:files].blank?
 
-      @template = current_account.templates.find(params[:template_id])
-
       documents = Templates::CreateAttachments.call(@template, params)
 
       schema = documents.map do |doc|