From 293972f716476933df2b665ad755cafe4d29d82d Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Sat, 23 Sep 2017 01:57:23 +0200
Subject: [PATCH] New API: GET /api/v1/custom_emojis to get a server's custom
 emojis (#5051)

---
 .../admin/custom_emojis_controller.rb          |  2 +-
 .../api/v1/custom_emojis_controller.rb         |  9 +++++++++
 app/models/custom_emoji.rb                     |  2 ++
 .../rest/custom_emoji_serializer.rb            | 11 +++++++++++
 app/serializers/rest/status_serializer.rb      | 12 +-----------
 config/routes.rb                               |  1 +
 .../api/v1/custom_emojis_controller_spec.rb    | 18 ++++++++++++++++++
 7 files changed, 43 insertions(+), 12 deletions(-)
 create mode 100644 app/controllers/api/v1/custom_emojis_controller.rb
 create mode 100644 app/serializers/rest/custom_emoji_serializer.rb
 create mode 100644 spec/controllers/api/v1/custom_emojis_controller_spec.rb

diff --git a/app/controllers/admin/custom_emojis_controller.rb b/app/controllers/admin/custom_emojis_controller.rb
index 572ad1ac2..d70514d9a 100644
--- a/app/controllers/admin/custom_emojis_controller.rb
+++ b/app/controllers/admin/custom_emojis_controller.rb
@@ -3,7 +3,7 @@
 module Admin
   class CustomEmojisController < BaseController
     def index
-      @custom_emojis = CustomEmoji.where(domain: nil)
+      @custom_emojis = CustomEmoji.local
     end
 
     def new
diff --git a/app/controllers/api/v1/custom_emojis_controller.rb b/app/controllers/api/v1/custom_emojis_controller.rb
new file mode 100644
index 000000000..4dd77fb55
--- /dev/null
+++ b/app/controllers/api/v1/custom_emojis_controller.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Api::V1::CustomEmojisController < Api::BaseController
+  respond_to :json
+
+  def index
+    render json: CustomEmoji.local, each_serializer: REST::CustomEmojiSerializer
+  end
+end
diff --git a/app/models/custom_emoji.rb b/app/models/custom_emoji.rb
index f4d3b16a0..aff9f8dfa 100644
--- a/app/models/custom_emoji.rb
+++ b/app/models/custom_emoji.rb
@@ -26,6 +26,8 @@ class CustomEmoji < ApplicationRecord
   validates_attachment :image, content_type: { content_type: 'image/png' }, presence: true, size: { in: 0..50.kilobytes }
   validates :shortcode, uniqueness: { scope: :domain }, format: { with: /\A#{SHORTCODE_RE_FRAGMENT}\z/ }, length: { minimum: 2 }
 
+  scope :local, -> { where(domain: nil) }
+
   include Remotable
 
   class << self
diff --git a/app/serializers/rest/custom_emoji_serializer.rb b/app/serializers/rest/custom_emoji_serializer.rb
new file mode 100644
index 000000000..b744dd4ec
--- /dev/null
+++ b/app/serializers/rest/custom_emoji_serializer.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class REST::CustomEmojiSerializer < ActiveModel::Serializer
+  include RoutingHelper
+
+  attributes :shortcode, :url
+
+  def url
+    full_asset_url(object.image.url)
+  end
+end
diff --git a/app/serializers/rest/status_serializer.rb b/app/serializers/rest/status_serializer.rb
index e0fd1c77e..ef3c325ba 100644
--- a/app/serializers/rest/status_serializer.rb
+++ b/app/serializers/rest/status_serializer.rb
@@ -17,7 +17,7 @@ class REST::StatusSerializer < ActiveModel::Serializer
   has_many :media_attachments, serializer: REST::MediaAttachmentSerializer
   has_many :mentions
   has_many :tags
-  has_many :emojis
+  has_many :emojis, serializer: REST::CustomEmojiSerializer
 
   def id
     object.id.to_s
@@ -119,14 +119,4 @@ class REST::StatusSerializer < ActiveModel::Serializer
       tag_url(object)
     end
   end
-
-  class CustomEmojiSerializer < ActiveModel::Serializer
-    include RoutingHelper
-
-    attributes :shortcode, :url
-
-    def url
-      full_asset_url(object.image.url)
-    end
-  end
 end
diff --git a/config/routes.rb b/config/routes.rb
index d38f5308a..cb7e84d7b 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -188,6 +188,7 @@ Rails.application.routes.draw do
       end
 
       resources :streaming, only: [:index]
+      resources :custom_emojis, only: [:index]
 
       get '/search', to: 'search#index', as: :search
 
diff --git a/spec/controllers/api/v1/custom_emojis_controller_spec.rb b/spec/controllers/api/v1/custom_emojis_controller_spec.rb
new file mode 100644
index 000000000..9f3522812
--- /dev/null
+++ b/spec/controllers/api/v1/custom_emojis_controller_spec.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe Api::V1::CustomEmojisController, type: :controller do
+  render_views
+
+  describe 'GET #index' do
+    before do
+      Fabricate(:custom_emoji)
+      get :index
+    end
+
+    it 'returns http success' do
+      expect(response).to have_http_status(:success)
+    end
+  end
+end