Added LinkBlock functionality in admin

• Added:
- LinkBlock functionality in admin

app/controllers/admin/link_blocks_controller.rb

@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+module Admin
+  class LinkBlocksController < BaseController
+    before_action :set_link_block, only: [:show, :destroy]
+
+    def index
+      authorize :link_block, :index?
+      @link_blocks = LinkBlock.page(params[:page])
+    end
+
+    def new
+      authorize :link_block, :create?
+      @link_block = LinkBlock.new
+    end
+
+    def create
+      authorize :link_block, :create?
+
+      @link_block = LinkBlock.new(resource_params)
+
+      if @link_block.save
+        log_action :create, @link_block
+        redirect_to admin_link_blocks_path, notice: I18n.t('admin.link_blocks.created_msg')
+      else
+        render :new
+      end
+    end
+
+    def destroy
+      authorize @link_block, :destroy?
+      @link_block.destroy!
+      log_action :destroy, @link_block
+      redirect_to admin_link_blocks_path, notice: I18n.t('admin.link_blocks.destroyed_msg')
+    end
+
+    private
+
+    def set_link_block
+      @link_block = LinkBlock.find(params[:id])
+    end
+
+    def resource_params
+      params.require(:link_block).permit(:link)
+    end
+  end
+end

app/lib/tag_manager.rb

@@ -22,6 +22,12 @@ class TagManager
     uri.normalized_host
   end
 
+  def normalize_link(link)
+    return if link.nil?
+    uri = Addressable::URI.parse(link)
+    return "#{uri.normalized_host}#{uri.normalized_path}"
+  end
+
   def same_acct?(canonical, needle)
     return true if canonical.casecmp(needle).zero?
     username, domain = needle.split('@')

app/models/concerns/link_normalizable.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module LinkNormalizable
+  extend ActiveSupport::Concern
+
+  included do
+    before_validation :normalize_link
+  end
+
+  private
+
+  def normalize_link
+    self.link = TagManager.instance.normalize_link(link&.strip)
+  end
+end

app/models/link_block.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+# == Schema Information
+#
+# Table name: link_blocks
+#
+#  id         :bigint(8)        not null, primary key
+#  link       :string           default(""), not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+
+class LinkBlock < ApplicationRecord
+  include LinkNormalizable
+
+  validates :link, presence: true, uniqueness: true
+
+  def self.block?(text)
+    return false if text.nil?
+    return false if text.length < 1
+
+    urls = text.scan(FetchLinkCardService::URL_PATTERN).map { |array| Addressable::URI.parse(array[0]).normalize }
+    url = urls.first
+    link_for_fetch = TagManager.instance.normalize_link(url)
+    where(link: link_for_fetch).exists?
+  end
+end

app/policies/link_block_policy.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class LinkBlockPolicy < ApplicationPolicy
+  def index?
+    admin?
+  end
+
+  def create?
+    admin?
+  end
+
+  def destroy?
+    admin?
+  end
+end

app/services/edit_status_service.rb

@@ -25,6 +25,7 @@ class EditStatusService < BaseService
 
     return idempotency_duplicate if idempotency_given? && idempotency_duplicate?
 
+    validate_links!
     validate_media!
     preprocess_attributes!
     revision_text = prepare_revision_text
@@ -89,6 +90,10 @@ class EditStatusService < BaseService
     raise GabSocial::ValidationError, I18n.t('media_attachments.validations.images_and_video') if @media.size > 1 && hasVideoOrGif
   end
 
+  def validate_links!
+    raise GabSocial::NotPermittedError if LinkBlock.block?(@text)
+  end
+
   def language_from_option(str)
     ISO_639.find(str)&.alpha2
   end

app/services/post_status_service.rb

@@ -34,6 +34,7 @@ class PostStatusService < BaseService
 
     return idempotency_duplicate if idempotency_given? && idempotency_duplicate?
 
+    validate_links!
     validate_media!
     validate_group!
     preprocess_attributes!
@@ -98,7 +99,7 @@ class PostStatusService < BaseService
   end
 
   def postprocess_status!
-    LinkCrawlWorker.perform_async(@status.id) unless @status.spoiler_text?
+    LinkCrawlWorker.perform_async(@status.id)
     DistributionWorker.perform_async(@status.id)
     # Pubsubhubbub::DistributionWorker.perform_async(@status.stream_entry.id)
     # ActivityPub::DistributionWorker.perform_async(@status.id)
@@ -127,6 +128,10 @@ class PostStatusService < BaseService
     raise GabSocial::ValidationError, I18n.t('media_attachments.validations.images_and_video') if @media.size > 1 && hasVideoOrGif
   end
 
+  def validate_links!
+    raise GabSocial::NotPermittedError if LinkBlock.block?(@text)
+  end
+
   def language_from_option(str)
     ISO_639.find(str)&.alpha2
   end

app/views/admin/link_blocks/_link_block.html.haml

@@ -0,0 +1,5 @@
+%tr
+  %td
+    %samp= link_block.link
+  %td
+    = table_link_to 'trash', t('admin.link_blocks.delete'), admin_link_block_path(link_block), method: :delete

app/views/admin/link_blocks/index.html.haml

@@ -0,0 +1,14 @@
+- content_for :page_title do
+  = t('admin.link_blocks.title')
+
+.table-wrapper
+  %table.table
+    %thead
+      %tr
+        %th= t('admin.link_blocks.link')
+        %th
+    %tbody
+      = render @link_blocks
+
+= paginate @link_blocks
+= link_to t('admin.link_blocks.add_new'), new_admin_link_block_path, class: 'button'

app/views/admin/link_blocks/new.html.haml

@@ -0,0 +1,11 @@
+- content_for :page_title do
+  = t('.title')
+
+= simple_form_for @link_block, url: admin_link_blocks_path do |f|
+  = render 'shared/error_messages', object: @link_block
+
+  .fields-group
+    = f.input :link, wrapper: :with_label, label: t('admin.link_blocks.link')
+
+  .actions
+    = f.button :button, t('.create'), type: :submit