X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Factivity_pub.ex;h=85fa83e2b55c0b716dc56ebf44057bdef0fc5bf7;hb=c9b418e5477229017b3750c55cf3ea3d03b7e609;hp=1880607805ae7859f40a282f2cdc241e331f4bb1;hpb=922abcda61298a7bca48894cb9a51a52fdeab1ed;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 188060780..85fa83e2b 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -1,5 +1,5 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
@@ -56,10 +56,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  defp check_remote_limit(%{"object" => %{"content" => content}}) do
+    limit = Pleroma.Config.get([:instance, :remote_limit])
+    String.length(content) <= limit
+  end
+
+  defp check_remote_limit(_), do: true
+
   def insert(map, local \\ true) when is_map(map) do
     with nil <- Activity.normalize(map),
          map <- lazy_put_activity_defaults(map),
          :ok <- check_actor_is_active(map["actor"]),
+         {_, true} <- {:remote_limit_error, check_remote_limit(map)},
          {:ok, map} <- MRF.filter(map),
          :ok <- insert_full_object(map) do
       {recipients, _, _} = get_recipients(map)
@@ -84,7 +92,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   def stream_out(activity) do
     public = "https://www.w3.org/ns/activitystreams#Public"
 
-    if activity.data["type"] in ["Create", "Announce"] do
+    if activity.data["type"] in ["Create", "Announce", "Delete"] do
       Pleroma.Web.Streamer.stream("user", activity)
       Pleroma.Web.Streamer.stream("list", activity)
 
@@ -95,16 +103,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
           Pleroma.Web.Streamer.stream("public:local", activity)
         end
 
-        activity.data["object"]
-        |> Map.get("tag", [])
-        |> Enum.filter(fn tag -> is_bitstring(tag) end)
-        |> Enum.map(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
+        if activity.data["type"] in ["Create"] do
+          activity.data["object"]
+          |> Map.get("tag", [])
+          |> Enum.filter(fn tag -> is_bitstring(tag) end)
+          |> Enum.map(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
 
-        if activity.data["object"]["attachment"] != [] do
-          Pleroma.Web.Streamer.stream("public:media", activity)
+          if activity.data["object"]["attachment"] != [] do
+            Pleroma.Web.Streamer.stream("public:media", activity)
 
-          if activity.local do
-            Pleroma.Web.Streamer.stream("public:local:media", activity)
+            if activity.local do
+              Pleroma.Web.Streamer.stream("public:local:media", activity)
+            end
           end
         end
       else
@@ -130,8 +140,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
              additional
            ),
          {:ok, activity} <- insert(create_data, local),
-         :ok <- maybe_federate(activity),
-         {:ok, _actor} <- User.increase_note_count(actor) do
+         # Changing note count prior to enqueuing federation task in order to avoid race conditions on updating user.info
+         {:ok, _actor} <- User.increase_note_count(actor),
+         :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
   end
@@ -216,10 +227,11 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         %User{ap_id: _} = user,
         %Object{data: %{"id" => _}} = object,
         activity_id \\ nil,
-        local \\ true
+        local \\ true,
+        public \\ true
       ) do
     with true <- is_public?(object),
-         announce_data <- make_announce_data(user, object, activity_id),
+         announce_data <- make_announce_data(user, object, activity_id, public),
          {:ok, activity} <- insert(announce_data, local),
          {:ok, object} <- add_announce_to_object(activity, object),
          :ok <- maybe_federate(activity) do
@@ -277,8 +289,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
     with {:ok, _} <- Object.delete(object),
          {:ok, activity} <- insert(data, local),
-         :ok <- maybe_federate(activity),
-         {:ok, _actor} <- User.decrease_note_count(user) do
+         # Changing note count prior to enqueuing federation task in order to avoid race conditions on updating user.info
+         {:ok, _actor} <- User.decrease_note_count(user),
+         :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
   end
@@ -356,21 +369,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   @valid_visibilities ~w[direct unlisted public private]
 
-  defp restrict_visibility(query, %{visibility: "direct"}) do
-    public = "https://www.w3.org/ns/activitystreams#Public"
+  defp restrict_visibility(query, %{visibility: visibility})
+       when visibility in @valid_visibilities do
+    query =
+      from(
+        a in query,
+        where:
+          fragment("activity_visibility(?, ?, ?) = ?", a.actor, a.recipients, a.data, ^visibility)
+      )
 
-    from(
-      activity in query,
-      join: sender in User,
-      on: sender.ap_id == activity.actor,
-      # Are non-direct statuses with no to/cc possible?
-      where:
-        fragment(
-          "not (? && ?)",
-          [^public, sender.follower_address],
-          activity.recipients
-        )
-    )
+    Ecto.Adapters.SQL.to_sql(:all, Repo, query)
+
+    query
   end
 
   defp restrict_visibility(_query, %{visibility: visibility})
@@ -386,6 +396,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       |> Map.put("type", ["Create", "Announce"])
       |> Map.put("actor_id", user.ap_id)
       |> Map.put("whole_db", true)
+      |> Map.put("pinned_activity_ids", user.info.pinned_activities)
 
     recipients =
       if reading_user do
@@ -399,6 +410,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> Enum.reverse()
   end
 
+  defp restrict_since(query, %{"since_id" => ""}), do: query
+
   defp restrict_since(query, %{"since_id" => since_id}) do
     from(activity in query, where: activity.id > ^since_id)
   end
@@ -454,6 +467,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_local(query, _), do: query
 
+  defp restrict_max(query, %{"max_id" => ""}), do: query
+
   defp restrict_max(query, %{"max_id" => max_id}) do
     from(activity in query, where: activity.id < ^max_id)
   end
@@ -503,15 +518,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_replies(query, _), do: query
 
-  # Only search through last 100_000 activities by default
-  defp restrict_recent(query, %{"whole_db" => true}), do: query
-
-  defp restrict_recent(query, _) do
-    since = (Repo.aggregate(Activity, :max, :id) || 0) - 100_000
-
-    from(activity in query, where: activity.id > ^since)
+  defp restrict_reblogs(query, %{"exclude_reblogs" => val}) when val == "true" or val == "1" do
+    from(activity in query, where: fragment("?->>'type' != 'Announce'", activity.data))
   end
 
+  defp restrict_reblogs(query, _), do: query
+
   defp restrict_blocked(query, %{"blocking_user" => %User{info: info}}) do
     blocks = info.blocks || []
     domain_blocks = info.domain_blocks || []
@@ -538,6 +550,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     )
   end
 
+  defp restrict_pinned(query, %{"pinned" => "true", "pinned_activity_ids" => ids}) do
+    from(activity in query, where: activity.id in ^ids)
+  end
+
+  defp restrict_pinned(query, _), do: query
+
   def fetch_activities_query(recipients, opts \\ %{}) do
     base_query =
       from(
@@ -556,11 +574,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> restrict_actor(opts)
     |> restrict_type(opts)
     |> restrict_favorited_by(opts)
-    |> restrict_recent(opts)
     |> restrict_blocked(opts)
     |> restrict_media(opts)
     |> restrict_visibility(opts)
     |> restrict_replies(opts)
+    |> restrict_reblogs(opts)
+    |> restrict_pinned(opts)
   end
 
   def fetch_activities(recipients, opts \\ %{}) do
@@ -726,8 +745,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         {"Content-Type", "application/activity+json"},
         {"signature", signature},
         {"digest", digest}
-      ],
-      hackney: [pool: :default]
+      ]
     )
   end
 
@@ -787,9 +805,24 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
-  def is_public?(activity) do
-    "https://www.w3.org/ns/activitystreams#Public" in (activity.data["to"] ++
-                                                         (activity.data["cc"] || []))
+  def is_public?(%Object{data: %{"type" => "Tombstone"}}), do: false
+  def is_public?(%Object{data: data}), do: is_public?(data)
+  def is_public?(%Activity{data: data}), do: is_public?(data)
+  def is_public?(%{"directMessage" => true}), do: false
+
+  def is_public?(data) do
+    "https://www.w3.org/ns/activitystreams#Public" in (data["to"] ++ (data["cc"] || []))
+  end
+
+  def is_private?(activity) do
+    !is_public?(activity) && Enum.any?(activity.data["to"], &String.contains?(&1, "/followers"))
+  end
+
+  def is_direct?(%Activity{data: %{"directMessage" => true}}), do: true
+  def is_direct?(%Object{data: %{"directMessage" => true}}), do: true
+
+  def is_direct?(activity) do
+    !is_public?(activity) && !is_private?(activity)
   end
 
   def visible_for_user?(activity, nil) do