add: reversed keyword and api forbidden

app/controllers/accounts_controller.rb

@@ -9,6 +9,7 @@ class AccountsController < ApplicationController
   # 其他平台同步注册的用户
   def remote_register
     username = params[:username]&.gsub(/\s+/, "")
+    return render_forbidden('该用户名为系统保留关键字.') if ReversedKeyword.is_reversed(username).present?
     email = params[:email]&.gsub(/\s+/, "")
     password = params[:password]
     platform = (params[:platform] || 'forge')&.gsub(/\s+/, "")

app/controllers/organizations/organizations_controller.rb

@@ -25,6 +25,7 @@ class Organizations::OrganizationsController < Organizations::BaseController
 
   def create
     ActiveRecord::Base.transaction do
+      return render_forbidden('该组织标识为系统保留关键字.') if ReversedKeyword.is_reversed(organization_params[:name]).present?
       Organizations::CreateForm.new(organization_params).validate!
       @organization = Organizations::CreateService.call(current_user, organization_params)
       Util.write_file(@image, avatar_path(@organization)) if params[:image].present?

app/controllers/projects_controller.rb

@@ -45,6 +45,7 @@ class ProjectsController < ApplicationController
 
   def create
     ActiveRecord::Base.transaction do
+      return render_forbidden('该项目标识为系统保留关键字.') if ReversedKeyword.is_reversed(project_params[:repository_name]).present?
       Projects::CreateForm.new(project_params).validate!
       @project = Projects::CreateService.new(current_user, project_params).call
 
@@ -55,6 +56,7 @@ class ProjectsController < ApplicationController
   end
 
   def migrate
+    return render_forbidden('该项目标识为系统保留关键字.') if ReversedKeyword.is_reversed(mirror_params[:repository_name]).present?
     Projects::MigrateForm.new(mirror_params).validate!
 
     @project = 

app/models/reversed_keyword.rb

@@ -0,0 +1,16 @@
+# == Schema Information
+#
+# Table name: reversed_keywords
+#
+#  id          :integer          not null, primary key
+#  identifier  :string(255)
+#  description :text(65535)
+#  closed      :boolean          default("0")
+#  created_at  :datetime         not null
+#  updated_at  :datetime         not null
+#
+
+class ReversedKeyword < ApplicationRecord
+
+  scope :is_reversed, -> (identifier){where(identifier: identifier, closed: false) if identifier.present?}
+end

db/migrate/20210831014412_create_reversed_keywords.rb

@@ -0,0 +1,11 @@
+class CreateReversedKeywords < ActiveRecord::Migration[5.2]
+  def change
+    create_table :reversed_keywords do |t|
+      t.string :identifier, comment: '保留关键字'
+      t.text :description, comment: '描述'
+      t.boolean :closed, default: false, comment: '是否关闭'
+
+      t.timestamps
+    end
+  end
+end

spec/models/reversed_keyword_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe ReversedKeyword, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end