X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Factivity_pub.ex;h=9441a37aba9b263b51a88176ff64590391fe00b7;hb=009fcd2acfdc3ae3ba4b706eb71c50015227de50;hp=0317b4cd5000e2d1db826901255c5def340a77c3;hpb=9a8850eb9ec9eba9350fcb6aadf70fd966623c94;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 0317b4cd5..9441a37ab 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -1,16 +1,207 @@
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
   alias Pleroma.Repo
-  alias Pleroma.Activity
+  alias Pleroma.{Activity, Object, Upload, User}
   import Ecto.Query
 
   def insert(map) when is_map(map) do
+    map = map
+    |> Map.put_new_lazy("id", &generate_activity_id/0)
+    |> Map.put_new_lazy("published", &make_date/0)
+
+    map = if is_map(map["object"]) do
+      object = Map.put_new_lazy(map["object"], "id", &generate_object_id/0)
+      Repo.insert!(%Object{data: object})
+      Map.put(map, "object", object)
+    else
+      map
+    end
+
     Repo.insert(%Activity{data: map})
   end
 
-  def fetch_public_activities do
+  def create(to, actor, context, object, additional \\ %{}, published \\ nil) do
+    published = published || make_date()
+
+    activity = %{
+      "type" => "Create",
+      "to" => to,
+      "actor" => actor.ap_id,
+      "object" => object,
+      "published" => published,
+      "context" => context
+    }
+    |> Map.merge(additional)
+
+    with {:ok, activity} <- insert(activity) do
+      if actor.local do
+        Pleroma.Web.Federator.enqueue(:publish, activity)
+       end
+
+      {:ok, activity}
+    end
+  end
+
+  def like(%User{ap_id: ap_id} = user, %Object{data: %{ "id" => id}} = object) do
+    cond do
+      # There's already a like here, so return the original activity.
+      ap_id in (object.data["likes"] || []) ->
+        query = from activity in Activity,
+          where: fragment("? @> ?", activity.data, ^%{actor: ap_id, object: id, type: "Like"})
+
+        activity = Repo.one(query)
+        {:ok, activity, object}
+      true ->
+        data = %{
+          "type" => "Like",
+          "actor" => ap_id,
+          "object" => id,
+          "to" => [User.ap_followers(user), object.data["actor"]]
+        }
+
+        {:ok, activity} = insert(data)
+
+        likes = [ap_id | (object.data["likes"] || [])] |> Enum.uniq
+
+        new_data = object.data
+        |> Map.put("like_count", length(likes))
+        |> Map.put("likes", likes)
+
+        changeset = Ecto.Changeset.change(object, data: new_data)
+        {:ok, object} = Repo.update(changeset)
+
+        update_object_in_activities(object)
+
+        {:ok, activity, object}
+    end
+  end
+
+  defp update_object_in_activities(%{data: %{"id" => id}} = object) do
+    # Update activities that already had this. Could be done in a seperate process.
+    relevant_activities = Activity.all_by_object_ap_id(id)
+    Enum.map(relevant_activities, fn (activity) ->
+      new_activity_data = activity.data |> Map.put("object", object.data)
+      changeset = Ecto.Changeset.change(activity, data: new_activity_data)
+      Repo.update(changeset)
+    end)
+  end
+
+  def unlike(%User{ap_id: ap_id}, %Object{data: %{ "id" => id}} = object) do
     query = from activity in Activity,
-    where: fragment(~s(? @> '{"to": ["https://www.w3.org/ns/activitystreams#Public"]}'), activity.data)
+      where: fragment("? @> ?", activity.data, ^%{actor: ap_id, object: id, type: "Like"})
+
+    activity = Repo.one(query)
+
+    if activity do
+      # just delete for now...
+      {:ok, _activity} = Repo.delete(activity)
+
+      likes = (object.data["likes"] || []) |> List.delete(ap_id)
+
+      new_data = object.data
+      |> Map.put("like_count", length(likes))
+      |> Map.put("likes", likes)
+
+      changeset = Ecto.Changeset.change(object, data: new_data)
+      {:ok, object} = Repo.update(changeset)
+
+      update_object_in_activities(object)
+
+      {:ok, object}
+    else
+      {:ok, object}
+    end
+  end
+
+  def generate_activity_id do
+    generate_id("activities")
+  end
+
+  def generate_context_id do
+    generate_id("contexts")
+  end
+
+  def generate_object_id do
+    generate_id("objects")
+  end
+
+  def generate_id(type) do
+    "#{Pleroma.Web.base_url()}/#{type}/#{Ecto.UUID.generate}"
+  end
+
+  def fetch_public_activities(opts \\ %{}) do
+    public = ["https://www.w3.org/ns/activitystreams#Public"]
+    fetch_activities(public, opts)
+  end
+
+  def fetch_activities(recipients, opts \\ %{}) do
+    since_id = opts["since_id"] || 0
+
+    query = from activity in Activity,
+      limit: 20,
+      order_by: [desc: :inserted_at]
+
+    query = Enum.reduce(recipients, query, fn (recipient, q) ->
+      map = %{ to: [recipient] }
+      from activity in q,
+      or_where: fragment(~s(? @> ?), activity.data, ^map)
+    end)
+
+    query = from activity in query,
+      where: activity.id > ^since_id
+
+    query = if opts["max_id"] do
+      from activity in query, where: activity.id < ^opts["max_id"]
+    else
+      query
+    end
+
+    query = if opts["actor_id"] do
+      from activity in query,
+        where: fragment("? @> ?", activity.data, ^%{actor: opts["actor_id"]})
+    else
+      query
+    end
 
     Repo.all(query)
+    |> Enum.reverse
+  end
+
+  def announce(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object) do
+    data = %{
+      "type" => "Announce",
+      "actor" => ap_id,
+      "object" => id,
+      "to" => [User.ap_followers(user), object.data["actor"]]
+    }
+
+    {:ok, activity} = insert(data)
+
+    announcements = [ap_id | (object.data["announcements"] || [])] |> Enum.uniq
+
+    new_data = object.data
+    |> Map.put("announcement_count", length(announcements))
+    |> Map.put("announcements", announcements)
+
+    changeset = Ecto.Changeset.change(object, data: new_data)
+    {:ok, object} = Repo.update(changeset)
+
+    update_object_in_activities(object)
+
+    {:ok, activity, object}
+  end
+
+  def fetch_activities_for_context(context) do
+    query = from activity in Activity,
+      where: fragment("? @> ?", activity.data, ^%{ context: context })
+    Repo.all(query)
+  end
+
+  def upload(file) do
+    data = Upload.store(file)
+    Repo.insert(%Object{data: data})
+  end
+
+  defp make_date do
+    DateTime.utc_now() |> DateTime.to_iso8601
   end
 end