X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Futils.ex;h=1f740eda551ee4f518c0fddb068c5e625463be33;hb=687db1bc3a13d3303865a104f0475a6fc4671037;hp=ef58b88d203ca483995cba0e072ef6369b078583;hpb=140f72725dd3d2840b356107e24542ba2896e4e1;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index ef58b88d2..1f740eda5 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -5,8 +5,28 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   alias Ecto.{Changeset, UUID}
   import Ecto.Query
 
+  def make_json_ld_header do
+    %{
+      "@context" => [
+        "https://www.w3.org/ns/activitystreams",
+        "https://w3id.org/security/v1",
+        %{
+          "manuallyApprovesFollowers" => "as:manuallyApprovesFollowers",
+          "sensitive" => "as:sensitive",
+          "Hashtag" => "as:Hashtag",
+          "ostatus" => "http://ostatus.org#",
+          "atomUri" => "ostatus:atomUri",
+          "inReplyToAtomUri" => "ostatus:inReplyToAtomUri",
+          "conversation" => "ostatus:conversation",
+          "toot" => "http://joinmastodon.org/ns#",
+          "Emoji" => "toot:Emoji"
+        }
+      ]
+    }
+  end
+
   def make_date do
-    DateTime.utc_now() |> DateTime.to_iso8601
+    DateTime.utc_now() |> DateTime.to_iso8601()
   end
 
   def generate_activity_id do
@@ -18,20 +38,43 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   end
 
   def generate_object_id do
-    Helpers.o_status_url(Endpoint, :object, UUID.generate)
+    Helpers.o_status_url(Endpoint, :object, UUID.generate())
   end
 
   def generate_id(type) do
-    "#{Web.base_url()}/#{type}/#{UUID.generate}"
+    "#{Web.base_url()}/#{type}/#{UUID.generate()}"
+  end
+
+  def create_context(context) do
+    context = context || generate_id("contexts")
+    changeset = Object.context_mapping(context)
+
+    case Repo.insert(changeset) do
+      {:ok, object} ->
+        object
+
+      # This should be solved by an upsert, but it seems ecto
+      # has problems accessing the constraint inside the jsonb.
+      {:error, _} ->
+        Object.get_cached_by_ap_id(context)
+    end
   end
 
   @doc """
   Enqueues an activity for federation if it's local
   """
   def maybe_federate(%Activity{local: true} = activity) do
-    Pleroma.Web.Federator.enqueue(:publish, activity)
+    priority =
+      case activity.data["type"] do
+        "Delete" -> 10
+        "Create" -> 1
+        _ -> 5
+      end
+
+    Pleroma.Web.Federator.enqueue(:publish, activity, priority)
     :ok
   end
+
   def maybe_federate(_), do: :ok
 
   @doc """
@@ -39,12 +82,17 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   also adds it to an included object
   """
   def lazy_put_activity_defaults(map) do
-    map = map
-    |> Map.put_new_lazy("id", &generate_activity_id/0)
-    |> Map.put_new_lazy("published", &make_date/0)
+    %{data: %{"id" => context}, id: context_id} = create_context(map["context"])
+
+    map =
+      map
+      |> Map.put_new_lazy("id", &generate_activity_id/0)
+      |> Map.put_new_lazy("published", &make_date/0)
+      |> Map.put_new("context", context)
+      |> Map.put_new("context_id", context_id)
 
     if is_map(map["object"]) do
-      object = lazy_put_object_defaults(map["object"])
+      object = lazy_put_object_defaults(map["object"], map)
       %{map | "object" => object}
     else
       map
@@ -54,20 +102,24 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   @doc """
   Adds an id and published date if they aren't there.
   """
-  def lazy_put_object_defaults(map) do
+  def lazy_put_object_defaults(map, activity \\ %{}) do
     map
     |> Map.put_new_lazy("id", &generate_object_id/0)
     |> Map.put_new_lazy("published", &make_date/0)
+    |> Map.put_new("context", activity["context"])
+    |> Map.put_new("context_id", activity["context_id"])
   end
 
   @doc """
   Inserts a full object if it is contained in an activity.
   """
-  def insert_full_object(%{"object" => object_data}) when is_map(object_data) do
-    with {:ok, object} <- Object.create(object_data) do
+  def insert_full_object(%{"object" => %{"type" => type} = object_data})
+      when is_map(object_data) and type in ["Note"] do
+    with {:ok, _} <- Object.create(object_data) do
       :ok
     end
   end
+
   def insert_full_object(_), do: :ok
 
   def update_object_in_activities(%{data: %{"id" => id}} = object) do
@@ -76,7 +128,8 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     # Alternatively, just don't do this and fetch the current object each time. Most
     # could probably be taken from cache.
     relevant_activities = Activity.all_by_object_ap_id(id)
-    Enum.map(relevant_activities, fn (activity) ->
+
+    Enum.map(relevant_activities, fn activity ->
       new_activity_data = activity.data |> Map.put("object", object.data)
       changeset = Changeset.change(activity, data: new_activity_data)
       Repo.update(changeset)
@@ -88,9 +141,22 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   @doc """
   Returns an existing like if a user already liked an object
   """
-  def get_existing_like(actor, %{data: %{"id" => id}} = object) do
-    query = from activity in Activity,
-      where: fragment("? @> ?", activity.data, ^%{actor: actor, object: id, type: "Like"})
+  def get_existing_like(actor, %{data: %{"id" => id}}) do
+    query =
+      from(
+        activity in Activity,
+        where: fragment("(?)->>'actor' = ?", activity.data, ^actor),
+        # this is to use the index
+        where:
+          fragment(
+            "coalesce((?)->'object'->>'id', (?)->>'object') = ?",
+            activity.data,
+            activity.data,
+            ^id
+          ),
+        where: fragment("(?)->>'type' = 'Like'", activity.data)
+      )
+
     Repo.one(query)
   end
 
@@ -100,6 +166,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
       "actor" => ap_id,
       "object" => id,
       "to" => [actor.follower_address, object.data["actor"]],
+      "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
       "context" => object.data["context"]
     }
 
@@ -107,10 +174,12 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   end
 
   def update_element_in_object(property, element, object) do
-    with new_data <- object.data |> Map.put("#{property}_count", length(element)) |> Map.put("#{property}s", element),
+    with new_data <-
+           object.data |> Map.put("#{property}_count", length(element))
+           |> Map.put("#{property}s", element),
          changeset <- Changeset.change(object, data: new_data),
          {:ok, object} <- Repo.update(changeset),
-          _ <- update_object_in_activities(object) do
+         _ <- update_object_in_activities(object) do
       {:ok, object}
     end
   end
@@ -120,7 +189,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   end
 
   def add_like_to_object(%Activity{data: %{"actor" => actor}}, object) do
-    with likes <- [actor | (object.data["likes"] || [])] |> Enum.uniq do
+    with likes <- [actor | object.data["likes"] || []] |> Enum.uniq() do
       update_likes_in_object(likes, object)
     end
   end
@@ -141,41 +210,99 @@ defmodule Pleroma.Web.ActivityPub.Utils do
       "type" => "Follow",
       "actor" => follower_id,
       "to" => [followed_id],
+      "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
       "object" => followed_id
     }
 
     if activity_id, do: Map.put(data, "id", activity_id), else: data
   end
 
-  def fetch_latest_follow(%User{ap_id: follower_id},
-                          %User{ap_id: followed_id}) do
-    query = from activity in Activity,
-      where: fragment("? @> ?", activity.data, ^%{type: "Follow", actor: follower_id,
-                                                  object: followed_id}),
-      order_by: [desc: :inserted_at],
-      limit: 1
+  def fetch_latest_follow(%User{ap_id: follower_id}, %User{ap_id: followed_id}) do
+    query =
+      from(
+        activity in Activity,
+        where:
+          fragment(
+            "? @> ?",
+            activity.data,
+            ^%{type: "Follow", actor: follower_id, object: followed_id}
+          ),
+        order_by: [desc: :id],
+        limit: 1
+      )
+
     Repo.one(query)
   end
 
   #### Announce-related helpers
 
+  @doc """
+  Retruns an existing announce activity if the notice has already been announced
+  """
+  def get_existing_announce(actor, %{data: %{"id" => id}}) do
+    query =
+      from(
+        activity in Activity,
+        where: fragment("(?)->>'actor' = ?", activity.data, ^actor),
+        # this is to use the index
+        where:
+          fragment(
+            "coalesce((?)->'object'->>'id', (?)->>'object') = ?",
+            activity.data,
+            activity.data,
+            ^id
+          ),
+        where: fragment("(?)->>'type' = 'Announce'", activity.data)
+      )
+
+    Repo.one(query)
+  end
+
   @doc """
   Make announce activity data for the given actor and object
   """
-  def make_announce_data(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object, activity_id) do
+  def make_announce_data(
+        %User{ap_id: ap_id} = user,
+        %Object{data: %{"id" => id}} = object,
+        activity_id
+      ) do
     data = %{
       "type" => "Announce",
       "actor" => ap_id,
       "object" => id,
       "to" => [user.follower_address, object.data["actor"]],
+      "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
       "context" => object.data["context"]
     }
 
     if activity_id, do: Map.put(data, "id", activity_id), else: data
   end
 
+  @doc """
+  Make unannounce activity data for the given actor and object
+  """
+  def make_unannounce_data(
+        %User{ap_id: ap_id} = user,
+        %Object{data: %{"id" => id, "context" => context}} = object
+      ) do
+    %{
+      "type" => "Undo",
+      "actor" => ap_id,
+      "object" => id,
+      "to" => [user.follower_address, object.data["actor"]],
+      "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
+      "context" => context
+    }
+  end
+
   def add_announce_to_object(%Activity{data: %{"actor" => actor}}, object) do
-    with announcements <- [actor | (object.data["announcements"] || [])] |> Enum.uniq do
+    with announcements <- [actor | object.data["announcements"] || []] |> Enum.uniq() do
+      update_element_in_object("announcement", announcements, object)
+    end
+  end
+
+  def remove_announce_from_object(%Activity{data: %{"actor" => actor}}, object) do
+    with announcements <- (object.data["announcements"] || []) |> List.delete(actor) do
       update_element_in_object("announcement", announcements, object)
     end
   end
@@ -191,15 +318,14 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     }
   end
 
-
   #### Create-related helpers
 
   def make_create_data(params, additional) do
     published = params.published || make_date()
 
-    activity = %{
+    %{
       "type" => "Create",
-      "to" => params.to |> Enum.uniq,
+      "to" => params.to |> Enum.uniq(),
       "actor" => params.actor.ap_id,
       "object" => params.object,
       "published" => published,