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"
- }
+ "https://litepub.github.io/litepub/context.jsonld"
]
}
end
"#{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)
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
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),
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
query =
from(
activity in Activity,
- where: fragment("(?)->>'actor' = ?", activity.data, ^actor),
+ where: activity.actor == ^actor,
# this is to use the index
where:
fragment(
@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,
"""
def make_unannounce_data(
%User{ap_id: ap_id} = user,
- %Object{data: %{"id" => id}} = object
+ %Activity{data: %{"context" => context}} = activity,
+ activity_id
) do
- %{
+ data = %{
"type" => "Undo",
"actor" => ap_id,
- "object" => id,
- "to" => [user.follower_address, object.data["actor"]],
+ "object" => activity.data,
+ "to" => [user.follower_address, activity.data["actor"]],
"cc" => ["https://www.w3.org/ns/activitystreams#Public"],
- "context" => object.data["context"]
+ "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
projects / akkoma / blobdiff