add firehose API

config/config.exs

@@ -63,7 +63,8 @@ config :canary,
 config :philomena, PhilomenaWeb.Endpoint,
   url: [host: "localhost"],
   secret_key_base: "xZYTon09JNRrj8snd7KL31wya4x71jmo5aaSSRmw1dGjWLRmEwWMTccwxgsGFGjM",
-  render_errors: [view: PhilomenaWeb.ErrorView, accepts: ~w(html json)]
+  render_errors: [view: PhilomenaWeb.ErrorView, accepts: ~w(html json)],
+  pubsub_server: Philomena.PubSub
 
 config :phoenix, :template_engines,
   slim: PhoenixSlime.Engine,

docker/web/nginx.conf

@@ -70,6 +70,7 @@ server {
 		proxy_temp_file_write_size 64k;
 
 		# Configuration for Phoenix WS
+		proxy_http_version 1.1;
 		proxy_set_header Upgrade $http_upgrade;
 		proxy_set_header Connection "upgrade";
 	}

lib/philomena_web/channels/firehose_channel.ex

@@ -0,0 +1,16 @@
+defmodule PhilomenaWeb.FirehoseChannel do
+  use Phoenix.Channel
+
+  def join("firehose", _params, socket) do
+    {:ok, socket}
+  end
+
+  def join(_room, _params, _socket) do
+    {:error, %{reason: "not_found"}}
+  end
+
+  # Don't allow the connected client to send any messages to the socket
+  def handle_in(message, _params, socket) do
+    {:stop, :shutdown, socket}
+  end
+end

lib/philomena_web/channels/user_socket.ex

@@ -1,8 +1,8 @@
 defmodule PhilomenaWeb.UserSocket do
   use Phoenix.Socket
 
-  ## Channels
-  # channel "room:*", PhilomenaWeb.RoomChannel
+  # Channels
+  channel "firehose", PhilomenaWeb.FirehoseChannel
 
   # Socket params are passed from the client and can
   # be used to verify and authenticate a user. After

lib/philomena_web/controllers/image/comment_controller.ex

@@ -63,6 +63,12 @@ defmodule PhilomenaWeb.Image.CommentController do
 
     case Comments.create_comment(image, attributes, comment_params) do
       {:ok, %{comment: comment}} ->
+        PhilomenaWeb.Endpoint.broadcast!(
+          "firehose",
+          "comment:create",
+          PhilomenaWeb.Api.Json.CommentView.render("show.json", %{comment: comment})
+        )
+
         Comments.notify_comment(comment)
         Comments.reindex_comment(comment)
         Images.reindex_image(conn.assigns.image)

lib/philomena_web/controllers/image/source_controller.ex

@@ -12,7 +12,7 @@ defmodule PhilomenaWeb.Image.SourceController do
   plug PhilomenaWeb.CaptchaPlug
   plug PhilomenaWeb.UserAttributionPlug
   plug PhilomenaWeb.CanaryMapPlug, update: :edit_metadata
-  plug :load_and_authorize_resource, model: Image, id_name: "image_id"
+  plug :load_and_authorize_resource, model: Image, id_name: "image_id", preload: [:tags, :user]
 
   def update(conn, %{"image" => image_params}) do
     attributes = conn.assigns.attributes
@@ -21,6 +21,12 @@ defmodule PhilomenaWeb.Image.SourceController do
 
     case Images.update_source(image, attributes, image_params) do
       {:ok, %{image: image}} ->
+        PhilomenaWeb.Endpoint.broadcast!(
+          "firehose",
+          "image:update",
+          PhilomenaWeb.Api.Json.ImageView.render("show.json", %{image: image, interactions: []})
+        )
+
         changeset = Images.change_image(image)
 
         source_change_count =

lib/philomena_web/controllers/image/tag_controller.ex

@@ -14,7 +14,7 @@ defmodule PhilomenaWeb.Image.TagController do
   plug PhilomenaWeb.CaptchaPlug
   plug PhilomenaWeb.UserAttributionPlug
   plug PhilomenaWeb.CanaryMapPlug, update: :edit_metadata
-  plug :load_and_authorize_resource, model: Image, id_name: "image_id"
+  plug :load_and_authorize_resource, model: Image, id_name: "image_id", preload: [:tags, :user]
 
   def update(conn, %{"image" => image_params}) do
     attributes = conn.assigns.attributes
@@ -22,6 +22,12 @@ defmodule PhilomenaWeb.Image.TagController do
 
     case Images.update_tags(image, attributes, image_params) do
       {:ok, %{image: {image, added_tags, removed_tags}}} ->
+        PhilomenaWeb.Endpoint.broadcast!(
+          "firehose",
+          "image:update",
+          PhilomenaWeb.Api.Json.ImageView.render("show.json", %{image: image, interactions: []})
+        )
+
         Comments.reindex_comments(image)
         Images.reindex_image(image)
         Tags.reindex_tags(added_tags ++ removed_tags)

lib/philomena_web/controllers/image_controller.ex

@@ -108,6 +108,12 @@ defmodule PhilomenaWeb.ImageController do
 
     case Images.create_image(attributes, image_params) do
       {:ok, %{image: image}} ->
+        PhilomenaWeb.Endpoint.broadcast!(
+          "firehose",
+          "image:create",
+          PhilomenaWeb.Api.Json.ImageView.render("show.json", %{image: image, interactions: []})
+        )
+
         conn
         |> put_flash(:info, "Image created successfully.")
         |> redirect(to: Routes.image_path(conn, :show, image))

lib/philomena_web/views/api/json/image_view.ex

@@ -45,6 +45,12 @@ defmodule PhilomenaWeb.Api.Json.ImageView do
   end
 
   def render("image.json", %{conn: conn, image: %{hidden_from_users: false} = image}) do
+    result = render_one(image, PhilomenaWeb.Api.Json.ImageView, "image.json", %{image: image})
+
+    Map.put(result, :spoilered, ImageView.filter_or_spoiler_hits?(conn, image))
+  end
+
+  def render("image.json", %{image: %{hidden_from_users: false} = image}) do
     %{
       id: image.id,
       created_at: image.created_at,
@@ -74,7 +80,6 @@ defmodule PhilomenaWeb.Api.Json.ImageView do
       source_url: image.source_url,
       view_url: ImageView.pretty_url(image, false, false),
       representations: ImageView.thumb_urls(image, false),
-      spoilered: ImageView.filter_or_spoiler_hits?(conn, image),
       thumbnails_generated: image.thumbnails_generated,
       processed: image.processed,
       deletion_reason: nil,