X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Futils.ex;h=074622f2b3f8ba1534b28fe7846296fd458b6677;hb=6786ad3d983a37728654fccfa525498c77683cdc;hp=9e2fa1fb22967875b0e8050b11e8f15854122462;hpb=0251690e96d683fb5f5eee11e2dfff4c008676cf;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index 9e2fa1fb2..074622f2b 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -1,26 +1,78 @@
 defmodule Pleroma.Web.ActivityPub.Utils do
-  alias Pleroma.{Repo, Web, Object, Activity, User}
+  alias Pleroma.{Repo, Web, Object, Activity, User, Notification}
   alias Pleroma.Web.Router.Helpers
   alias Pleroma.Web.Endpoint
   alias Ecto.{Changeset, UUID}
   import Ecto.Query
+  require Logger
+
+  @supported_object_types ["Article", "Note", "Video", "Page"]
+
+  # Some implementations send the actor URI as the actor field, others send the entire actor object,
+  # so figure out what the actor's URI is based on what we have.
+  def get_ap_id(object) do
+    case object do
+      %{"id" => id} -> id
+      id -> id
+    end
+  end
+
+  def normalize_params(params) do
+    Map.put(params, "actor", get_ap_id(params["actor"]))
+  end
+
+  defp recipient_in_collection(ap_id, coll) when is_binary(coll), do: ap_id == coll
+  defp recipient_in_collection(ap_id, coll) when is_list(coll), do: ap_id in coll
+  defp recipient_in_collection(_, _), do: false
+
+  def recipient_in_message(ap_id, params) do
+    cond do
+      recipient_in_collection(ap_id, params["to"]) ->
+        true
+
+      recipient_in_collection(ap_id, params["cc"]) ->
+        true
+
+      recipient_in_collection(ap_id, params["bto"]) ->
+        true
+
+      recipient_in_collection(ap_id, params["bcc"]) ->
+        true
+
+      # if the message is unaddressed at all, then assume it is directly addressed
+      # to the recipient
+      !params["to"] && !params["cc"] && !params["bto"] && !params["bcc"] ->
+        true
+
+      true ->
+        false
+    end
+  end
+
+  defp extract_list(target) when is_binary(target), do: [target]
+  defp extract_list(lst) when is_list(lst), do: lst
+  defp extract_list(_), do: []
+
+  def maybe_splice_recipient(ap_id, params) do
+    need_splice =
+      !recipient_in_collection(ap_id, params["to"]) &&
+        !recipient_in_collection(ap_id, params["cc"])
+
+    cc_list = extract_list(params["cc"])
+
+    if need_splice do
+      params
+      |> Map.put("cc", [ap_id | cc_list])
+    else
+      params
+    end
+  end
 
   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"
-        }
+        "#{Web.base_url()}/schemas/litepub-0.1.jsonld"
       ]
     }
   end
@@ -45,6 +97,21 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     "#{Web.base_url()}/#{type}/#{UUID.generate()}"
   end
 
+  def get_notified_from_object(%{"type" => type} = object) when type in @supported_object_types do
+    fake_create_activity = %{
+      "to" => object["to"],
+      "cc" => object["cc"],
+      "type" => "Create",
+      "object" => object
+    }
+
+    Notification.get_notified_from_activity(%Activity{data: fake_create_activity}, false)
+  end
+
+  def get_notified_from_object(object) do
+    Notification.get_notified_from_activity(%Activity{data: object}, false)
+  end
+
   def create_context(context) do
     context = context || generate_id("contexts")
     changeset = Object.context_mapping(context)
@@ -114,7 +181,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   Inserts a full object if it is contained in an activity.
   """
   def insert_full_object(%{"object" => %{"type" => type} = object_data})
-      when is_map(object_data) and type in ["Note"] do
+      when is_map(object_data) and type in @supported_object_types do
     with {:ok, _} <- Object.create(object_data) do
       :ok
     end
@@ -175,7 +242,8 @@ defmodule Pleroma.Web.ActivityPub.Utils do
 
   def update_element_in_object(property, element, object) do
     with new_data <-
-           object.data |> Map.put("#{property}_count", length(element))
+           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),
@@ -189,43 +257,73 @@ 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
+    likes = if is_list(object.data["likes"]), do: object.data["likes"], else: []
+
+    with likes <- [actor | likes] |> Enum.uniq() do
       update_likes_in_object(likes, object)
     end
   end
 
   def remove_like_from_object(%Activity{data: %{"actor" => actor}}, object) do
-    with likes <- (object.data["likes"] || []) |> List.delete(actor) do
+    likes = if is_list(object.data["likes"]), do: object.data["likes"], else: []
+
+    with likes <- likes |> List.delete(actor) do
       update_likes_in_object(likes, object)
     end
   end
 
   #### Follow-related helpers
 
+  @doc """
+  Updates a follow activity's state (for locked accounts).
+  """
+  def update_follow_state(%Activity{} = activity, state) do
+    with new_data <-
+           activity.data
+           |> Map.put("state", state),
+         changeset <- Changeset.change(activity, data: new_data),
+         {:ok, activity} <- Repo.update(changeset) do
+      {:ok, activity}
+    end
+  end
+
   @doc """
   Makes a follow activity data for the given follower and followed
   """
-  def make_follow_data(%User{ap_id: follower_id}, %User{ap_id: followed_id}, activity_id) do
+  def make_follow_data(
+        %User{ap_id: follower_id},
+        %User{ap_id: followed_id} = _followed,
+        activity_id
+      ) do
     data = %{
       "type" => "Follow",
       "actor" => follower_id,
       "to" => [followed_id],
       "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
-      "object" => followed_id
+      "object" => followed_id,
+      "state" => "pending"
     }
 
-    if activity_id, do: Map.put(data, "id", activity_id), else: data
+    data = if activity_id, do: Map.put(data, "id", activity_id), else: data
+
+    data
   end
 
   def fetch_latest_follow(%User{ap_id: follower_id}, %User{ap_id: followed_id}) do
     query =
       from(
         activity in Activity,
+        where:
+          fragment(
+            "? ->> 'type' = 'Follow'",
+            activity.data
+          ),
+        where: activity.actor == ^follower_id,
         where:
           fragment(
             "? @> ?",
             activity.data,
-            ^%{type: "Follow", actor: follower_id, object: followed_id}
+            ^%{object: followed_id}
           ),
         order_by: [desc: :id],
         limit: 1
@@ -243,7 +341,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
     query =
       from(
         activity in Activity,
-        where: fragment("(?)->>'actor' = ?", activity.data, ^actor),
+        where: activity.actor == ^actor,
         # this is to use the index
         where:
           fragment(
@@ -261,6 +359,24 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   @doc """
   Make announce activity data for the given actor and object
   """
+  # for relayed messages, we only want to send to subscribers
+  def make_announce_data(
+        %User{ap_id: ap_id, nickname: nil} = user,
+        %Object{data: %{"id" => id}} = object,
+        activity_id
+      ) do
+    data = %{
+      "type" => "Announce",
+      "actor" => ap_id,
+      "object" => id,
+      "to" => [user.follower_address],
+      "cc" => [],
+      "context" => object.data["context"]
+    }
+
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
+  end
+
   def make_announce_data(
         %User{ap_id: ap_id} = user,
         %Object{data: %{"id" => id}} = object,
@@ -283,39 +399,120 @@ defmodule Pleroma.Web.ActivityPub.Utils do
   """
   def make_unannounce_data(
         %User{ap_id: ap_id} = user,
-        %Activity{data: %{"id" => id, "context" => context}} = activity
+        %Activity{data: %{"context" => context}} = activity,
+        activity_id
       ) do
-    %{
+    data = %{
       "type" => "Undo",
       "actor" => ap_id,
-      "object" => id,
+      "object" => activity.data,
+      "to" => [user.follower_address, activity.data["actor"]],
+      "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
+      "context" => context
+    }
+
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
+  end
+
+  def make_unlike_data(
+        %User{ap_id: ap_id} = user,
+        %Activity{data: %{"context" => context}} = activity,
+        activity_id
+      ) do
+    data = %{
+      "type" => "Undo",
+      "actor" => ap_id,
+      "object" => activity.data,
       "to" => [user.follower_address, activity.data["actor"]],
       "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
       "context" => context
     }
+
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
   end
 
-  def add_announce_to_object(%Activity{data: %{"actor" => actor}}, object) do
-    with announcements <- [actor | object.data["announcements"] || []] |> Enum.uniq() do
+  def add_announce_to_object(
+        %Activity{
+          data: %{"actor" => actor, "cc" => ["https://www.w3.org/ns/activitystreams#Public"]}
+        },
+        object
+      ) do
+    announcements =
+      if is_list(object.data["announcements"]), do: object.data["announcements"], else: []
+
+    with announcements <- [actor | announcements] |> Enum.uniq() do
       update_element_in_object("announcement", announcements, object)
     end
   end
 
+  def add_announce_to_object(_, object), do: {:ok, object}
+
   def remove_announce_from_object(%Activity{data: %{"actor" => actor}}, object) do
-    with announcements <- (object.data["announcements"] || []) |> List.delete(actor) do
+    announcements =
+      if is_list(object.data["announcements"]), do: object.data["announcements"], else: []
+
+    with announcements <- announcements |> List.delete(actor) do
       update_element_in_object("announcement", announcements, object)
     end
   end
 
   #### Unfollow-related helpers
 
-  def make_unfollow_data(follower, followed, follow_activity) do
-    %{
+  def make_unfollow_data(follower, followed, follow_activity, activity_id) do
+    data = %{
       "type" => "Undo",
       "actor" => follower.ap_id,
       "to" => [followed.ap_id],
-      "object" => follow_activity.data["id"]
+      "object" => follow_activity.data
     }
+
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
+  end
+
+  #### Block-related helpers
+  def fetch_latest_block(%User{ap_id: blocker_id}, %User{ap_id: blocked_id}) do
+    query =
+      from(
+        activity in Activity,
+        where:
+          fragment(
+            "? ->> 'type' = 'Block'",
+            activity.data
+          ),
+        where: activity.actor == ^blocker_id,
+        where:
+          fragment(
+            "? @> ?",
+            activity.data,
+            ^%{object: blocked_id}
+          ),
+        order_by: [desc: :id],
+        limit: 1
+      )
+
+    Repo.one(query)
+  end
+
+  def make_block_data(blocker, blocked, activity_id) do
+    data = %{
+      "type" => "Block",
+      "actor" => blocker.ap_id,
+      "to" => [blocked.ap_id],
+      "object" => blocked.ap_id
+    }
+
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
+  end
+
+  def make_unblock_data(blocker, blocked, block_activity, activity_id) do
+    data = %{
+      "type" => "Undo",
+      "actor" => blocker.ap_id,
+      "to" => [blocked.ap_id],
+      "object" => block_activity.data
+    }
+
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
   end
 
   #### Create-related helpers