update copyright years to 2019

[akkoma] / lib / pleroma / notification.ex

diff --git a/lib/pleroma/notification.ex b/lib/pleroma/notification.ex
index 4a9e835bf15ea627227a190340c310e485aee473..51d59870ce25ed86d9b7aee2ba798e36abe12394 100644 (file)
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@@ -1,38 +1,180 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Notification do
   use Ecto.Schema
-  alias Pleroma.{User, Activity, Notification, Repo}
+  alias Pleroma.{User, Activity, Notification, Repo, Object}
   import Ecto.Query
 
   schema "notifications" do
-    field :seen, :boolean, default: false
-    belongs_to :user, Pleroma.User
-    belongs_to :activity, Pleroma.Activity
+    field(:seen, :boolean, default: false)
+    belongs_to(:user, Pleroma.User)
+    belongs_to(:activity, Pleroma.Activity)
 
     timestamps()
   end
 
+  # TODO: Make generic and unify (see activity_pub.ex)
+  defp restrict_max(query, %{"max_id" => max_id}) do
+    from(activity in query, where: activity.id < ^max_id)
+  end
+
+  defp restrict_max(query, _), do: query
+
+  defp restrict_since(query, %{"since_id" => since_id}) do
+    from(activity in query, where: activity.id > ^since_id)
+  end
+
+  defp restrict_since(query, _), do: query
+
   def for_user(user, opts \\ %{}) do
-    query = from n in Notification,
-      where: n.user_id == ^user.id,
-      order_by: [desc: n.id],
-      preload: [:activity],
-      limit: 20
+    query =
+      from(
+        n in Notification,
+        where: n.user_id == ^user.id,
+        order_by: [desc: n.id],
+        preload: [:activity],
+        limit: 20
+      )
+
+    query =
+      query
+      |> restrict_since(opts)
+      |> restrict_max(opts)
+
     Repo.all(query)
   end
 
-  def create_notifications(%Activity{id: id, data: %{"to" => to, "type" => type}} = activity) when type in ["Create", "Like", "Announce", "Follow"] do
-    users = User.get_notified_from_activity(activity)
+  def set_read_up_to(%{id: user_id} = _user, id) do
+    query =
+      from(
+        n in Notification,
+        where: n.user_id == ^user_id,
+        where: n.id <= ^id,
+        update: [
+          set: [seen: true]
+        ]
+      )
+
+    Repo.update_all(query, [])
+  end
+
+  def get(%{id: user_id} = _user, id) do
+    query =
+      from(
+        n in Notification,
+        where: n.id == ^id,
+        preload: [:activity]
+      )
+
+    notification = Repo.one(query)
+
+    case notification do
+      %{user_id: ^user_id} ->
+        {:ok, notification}
+
+      _ ->
+        {:error, "Cannot get notification"}
+    end
+  end
+
+  def clear(user) do
+    from(n in Notification, where: n.user_id == ^user.id)
+    |> Repo.delete_all()
+  end
+
+  def dismiss(%{id: user_id} = _user, id) do
+    notification = Repo.get(Notification, id)
+
+    case notification do
+      %{user_id: ^user_id} ->
+        Repo.delete(notification)
+
+      _ ->
+        {:error, "Cannot dismiss notification"}
+    end
+  end
 
-    notifications = Enum.map(users, fn (user) -> create_notification(activity, user) end)
+  def create_notifications(%Activity{id: _, data: %{"to" => _, "type" => type}} = activity)
+      when type in ["Create", "Like", "Announce", "Follow"] do
+    users = get_notified_from_activity(activity)
+
+    notifications = Enum.map(users, fn user -> create_notification(activity, user) end)
     {:ok, notifications}
   end
+
   def create_notifications(_), do: {:ok, []}
 
   # TODO move to sql, too.
   def create_notification(%Activity{} = activity, %User{} = user) do
-    notification = %Notification{user_id: user.id, activity_id: activity.id}
-    {:ok, notification} = Repo.insert(notification)
-    notification
+    unless User.blocks?(user, %{ap_id: activity.data["actor"]}) or
+             user.ap_id == activity.data["actor"] do
+      notification = %Notification{user_id: user.id, activity: activity}
+      {:ok, notification} = Repo.insert(notification)
+      Pleroma.Web.Streamer.stream("user", notification)
+      Pleroma.Web.Push.send(notification)
+      notification
+    end
   end
-end
 
+  def get_notified_from_activity(activity, local_only \\ true)
+
+  def get_notified_from_activity(
+        %Activity{data: %{"to" => _, "type" => type} = _data} = activity,
+        local_only
+      )
+      when type in ["Create", "Like", "Announce", "Follow"] do
+    recipients =
+      []
+      |> maybe_notify_to_recipients(activity)
+      |> maybe_notify_mentioned_recipients(activity)
+      |> Enum.uniq()
+
+    User.get_users_from_set(recipients, local_only)
+  end
+
+  def get_notified_from_activity(_, _local_only), do: []
+
+  defp maybe_notify_to_recipients(
+         recipients,
+         %Activity{data: %{"to" => to, "type" => _type}} = _activity
+       ) do
+    recipients ++ to
+  end
+
+  defp maybe_notify_mentioned_recipients(
+         recipients,
+         %Activity{data: %{"to" => _to, "type" => type} = data} = _activity
+       )
+       when type == "Create" do
+    object = Object.normalize(data["object"])
+
+    object_data =
+      cond do
+        !is_nil(object) ->
+          object.data
+
+        is_map(data["object"]) ->
+          data["object"]
+
+        true ->
+          %{}
+      end
+
+    tagged_mentions = maybe_extract_mentions(object_data)
+
+    recipients ++ tagged_mentions
+  end
+
+  defp maybe_notify_mentioned_recipients(recipients, _), do: recipients
+
+  defp maybe_extract_mentions(%{"tag" => tag}) do
+    tag
+    |> Enum.filter(fn x -> is_map(x) end)
+    |> Enum.filter(fn x -> x["type"] == "Mention" end)
+    |> Enum.map(fn x -> x["href"] end)
+  end
+
+  defp maybe_extract_mentions(_), do: []
+end