# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.Transmogrifier do
A module to handle coding from internal to wire ActivityPub and back.
"""
alias Pleroma.Activity
- alias Pleroma.EarmarkRenderer
alias Pleroma.EctoType.ActivityPub.ObjectValidators
- alias Pleroma.FollowingRelationship
alias Pleroma.Maps
- alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Object.Containment
alias Pleroma.Repo
"""
def fix_object(object, options \\ []) do
object
- |> strip_internal_fields
- |> fix_actor
- |> fix_url
- |> fix_attachments
- |> fix_context
+ |> strip_internal_fields()
+ |> fix_actor()
+ |> fix_url()
+ |> fix_attachments()
+ |> fix_context()
|> fix_in_reply_to(options)
- |> fix_emoji
- |> fix_tag
- |> fix_content_map
- |> fix_addressing
- |> fix_summary
+ |> fix_emoji()
+ |> fix_tag()
+ |> fix_content_map()
+ |> fix_addressing()
+ |> fix_summary()
|> fix_type(options)
- |> fix_content
end
def fix_summary(%{"summary" => nil} = object) do
end
def fix_actor(%{"attributedTo" => actor} = object) do
- Map.put(object, "actor", Containment.get_actor(%{"actor" => actor}))
+ actor = Containment.get_actor(%{"actor" => actor})
+
+ # TODO: Remove actor field for Objects
+ object
+ |> Map.put("actor", actor)
+ |> Map.put("attributedTo", actor)
end
def fix_in_reply_to(object, options \\ [])
def fix_in_reply_to(%{"inReplyTo" => in_reply_to} = object, options)
when not is_nil(in_reply_to) do
in_reply_to_id = prepare_in_reply_to(in_reply_to)
- object = Map.put(object, "inReplyToAtomUri", in_reply_to_id)
depth = (options[:depth] || 0) + 1
if Federator.allowed_thread_distance?(depth) do
%Activity{} <- Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
object
|> Map.put("inReplyTo", replied_object.data["id"])
- |> Map.put("inReplyToAtomUri", object["inReplyToAtomUri"] || in_reply_to_id)
|> Map.put("context", replied_object.data["context"] || object["conversation"])
- |> Map.drop(["conversation"])
+ |> Map.drop(["conversation", "inReplyToAtomUri"])
else
e ->
Logger.warn("Couldn't fetch #{inspect(in_reply_to_id)}, error: #{inspect(e)}")
if href do
attachment_url =
- %{"href" => href}
+ %{
+ "href" => href,
+ "type" => Map.get(url || %{}, "type", "Link")
+ }
|> Maps.put_if_present("mediaType", media_type)
- |> Maps.put_if_present("type", Map.get(url || %{}, "type"))
- %{"url" => [attachment_url]}
+ %{
+ "url" => [attachment_url],
+ "type" => data["type"] || "Document"
+ }
|> Maps.put_if_present("mediaType", media_type)
- |> Maps.put_if_present("type", data["type"])
|> Maps.put_if_present("name", data["name"])
+ |> Maps.put_if_present("blurhash", data["blurhash"])
else
nil
end
Map.put(object, "url", url["href"])
end
- def fix_url(%{"type" => object_type, "url" => url} = object)
- when object_type in ["Video", "Audio"] and is_list(url) do
- attachment =
- Enum.find(url, fn x ->
- media_type = x["mediaType"] || x["mimeType"] || ""
-
- is_map(x) and String.starts_with?(media_type, ["audio/", "video/"])
- end)
-
- link_element =
- Enum.find(url, fn x -> is_map(x) and (x["mediaType"] || x["mimeType"]) == "text/html" end)
-
- object
- |> Map.put("attachment", [attachment])
- |> Map.put("url", link_element["href"])
- end
-
- def fix_url(%{"type" => object_type, "url" => url} = object)
- when object_type != "Video" and is_list(url) do
+ def fix_url(%{"url" => url} = object) when is_list(url) do
first_element = Enum.at(url, 0)
url_string =
def fix_emoji(%{"tag" => tags} = object) when is_list(tags) do
emoji =
tags
- |> Enum.filter(fn data -> data["type"] == "Emoji" and data["icon"] end)
+ |> Enum.filter(fn data -> is_map(data) and data["type"] == "Emoji" and data["icon"] end)
|> Enum.reduce(%{}, fn data, mapping ->
name = String.trim(data["name"], ":")
Map.put(mapping, name, data["icon"]["url"])
end)
- # we merge mastodon and pleroma emoji into a single mapping, to allow for both wire formats
- emoji = Map.merge(object["emoji"] || %{}, emoji)
-
Map.put(object, "emoji", emoji)
end
tags =
tag
|> Enum.filter(fn data -> data["type"] == "Hashtag" and data["name"] end)
- |> Enum.map(fn data -> String.slice(data["name"], 1..-1) end)
+ |> Enum.map(fn
+ %{"name" => "#" <> hashtag} -> String.downcase(hashtag)
+ %{"name" => hashtag} -> String.downcase(hashtag)
+ end)
Map.put(object, "tag", tag ++ tags)
end
- def fix_tag(%{"tag" => %{"type" => "Hashtag", "name" => hashtag} = tag} = object) do
- combined = [tag, String.slice(hashtag, 1..-1)]
-
- Map.put(object, "tag", combined)
+ def fix_tag(%{"tag" => %{} = tag} = object) do
+ object
+ |> Map.put("tag", [tag])
+ |> fix_tag
end
- def fix_tag(%{"tag" => %{} = tag} = object), do: Map.put(object, "tag", [tag])
-
def fix_tag(object), do: object
# content map usually only has one language so this will do for now.
def fix_type(object, _), do: object
- defp fix_content(%{"mediaType" => "text/markdown", "content" => content} = object)
- when is_binary(content) do
- html_content =
- content
- |> Earmark.as_html!(%Earmark.Options{renderer: EarmarkRenderer})
- |> Pleroma.HTML.filter_tags()
-
- Map.merge(object, %{"content" => html_content, "mediaType" => "text/html"})
- end
-
- defp fix_content(object), do: object
-
- defp mastodon_follow_hack(%{"id" => id, "actor" => follower_id}, followed) do
- with true <- id =~ "follows",
- %User{local: true} = follower <- User.get_cached_by_ap_id(follower_id),
- %Activity{} = activity <- Utils.fetch_latest_follow(follower, followed) do
- {:ok, activity}
- else
- _ -> {:error, nil}
- end
- end
-
- defp mastodon_follow_hack(_, _), do: {:error, nil}
-
- defp get_follow_activity(follow_object, followed) do
- with object_id when not is_nil(object_id) <- Utils.get_ap_id(follow_object),
- {_, %Activity{} = activity} <- {:activity, Activity.get_by_ap_id(object_id)} do
- {:ok, activity}
- else
- # Can't find the activity. This might a Mastodon 2.3 "Accept"
- {:activity, nil} ->
- mastodon_follow_hack(follow_object, followed)
-
- _ ->
- {:error, nil}
- end
- end
-
# Reduce the object list to find the reported user.
defp get_reported(objects) do
Enum.reduce_while(objects, nil, fn ap_id, _ ->
end)
end
+ # Compatibility wrapper for Mastodon votes
+ defp handle_create(%{"object" => %{"type" => "Answer"}} = data, _user) do
+ handle_incoming(data)
+ end
+
+ defp handle_create(%{"object" => object} = data, user) do
+ %{
+ to: data["to"],
+ object: object,
+ actor: user,
+ context: object["context"],
+ local: false,
+ published: data["published"],
+ additional:
+ Map.take(data, [
+ "cc",
+ "directMessage",
+ "id"
+ ])
+ }
+ |> ActivityPub.create()
+ end
+
def handle_incoming(data, options \\ [])
# Flag objects are placed ahead of the ID check because Mastodon 2.8 and earlier send them
%{"type" => "Create", "object" => %{"type" => objtype} = object} = data,
options
)
- when objtype in ["Article", "Event", "Note", "Video", "Page", "Question", "Answer", "Audio"] do
+ when objtype in ~w{Note Page} do
actor = Containment.get_actor(data)
with nil <- Activity.get_create_by_object_ap_id(object["id"]),
- {:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(actor),
- data <- Map.put(data, "actor", actor) |> fix_addressing() do
- object = fix_object(object, options)
-
- params = %{
- to: data["to"],
- object: object,
- actor: user,
- context: object["context"],
- local: false,
- published: data["published"],
- additional:
- Map.take(data, [
- "cc",
- "directMessage",
- "id"
- ])
- }
+ {:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(actor) do
+ data =
+ data
+ |> Map.put("object", fix_object(object, options))
+ |> Map.put("actor", actor)
+ |> fix_addressing()
- with {:ok, created_activity} <- ActivityPub.create(params) do
+ with {:ok, created_activity} <- handle_create(data, user) do
reply_depth = (options[:depth] || 0) + 1
if Federator.allowed_thread_distance?(reply_depth) do
end
end
- def handle_incoming(
- %{"type" => "Accept", "object" => follow_object, "actor" => _actor, "id" => id} = data,
- _options
- ) do
- with actor <- Containment.get_actor(data),
- {:ok, %User{} = followed} <- User.get_or_fetch_by_ap_id(actor),
- {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
- {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
- %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
- {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_accept) do
- User.update_follower_count(followed)
- User.update_following_count(follower)
-
- Notification.update_notification_type(followed, follow_activity)
-
- ActivityPub.accept(%{
- to: follow_activity.data["to"],
- type: "Accept",
- actor: followed,
- object: follow_activity.data["id"],
- local: false,
- activity_id: id
- })
- else
- _e ->
- :error
- end
- end
-
- def handle_incoming(
- %{"type" => "Reject", "object" => follow_object, "actor" => _actor, "id" => id} = data,
- _options
- ) do
- with actor <- Containment.get_actor(data),
- {:ok, %User{} = followed} <- User.get_or_fetch_by_ap_id(actor),
- {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
- {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
- %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
- {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_reject),
- {:ok, activity} <-
- ActivityPub.reject(%{
- to: follow_activity.data["to"],
- type: "Reject",
- actor: followed,
- object: follow_activity.data["id"],
- local: false,
- activity_id: id
- }) do
- {:ok, activity}
- else
- _e -> :error
- end
- end
-
@misskey_reactions %{
"like" => "👍",
"love" => "❤️",
end
def handle_incoming(
- %{"type" => "Create", "object" => %{"type" => "ChatMessage"}} = data,
+ %{"type" => "Create", "object" => %{"type" => objtype, "id" => obj_id}} = data,
_options
- ) do
+ )
+ when objtype in ~w{Question Answer ChatMessage Audio Video Event Article} do
+ data = Map.put(data, "object", strip_internal_fields(data["object"]))
+
with {:ok, %User{}} <- ObjectValidator.fetch_actor(data),
+ nil <- Activity.get_create_by_object_ap_id(obj_id),
{:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do
{:ok, activity}
+ else
+ %Activity{} = activity -> {:ok, activity}
+ e -> e
end
end
%{"type" => type} = data,
_options
)
- when type in ~w{Update Block Follow} do
+ when type in ~w{Update Block Follow Accept Reject} do
with {:ok, %User{}} <- ObjectValidator.fetch_actor(data),
- {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do
+ {:ok, activity, _} <-
+ Pipeline.common_pipeline(data, local: false) do
{:ok, activity}
end
end
%{"type" => "Delete"} = data,
_options
) do
- with {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do
+ with {:ok, activity, _} <-
+ Pipeline.common_pipeline(data, local: false) do
{:ok, activity}
else
{:error, {:validate_object, _}} = e ->
@spec get_obj_helper(String.t(), Keyword.t()) :: {:ok, Object.t()} | nil
def get_obj_helper(id, options \\ []) do
- case Object.normalize(id, true, options) do
+ options = Keyword.put(options, :fetch, true)
+
+ case Object.normalize(id, options) do
%Object{} = object -> {:ok, object}
_ -> nil
end
"actor" => attributed_to,
"object" => data
}) do
- {:ok, Object.normalize(activity)}
+ {:ok, Object.normalize(activity, fetch: false)}
else
_ -> get_obj_helper(object_id)
end
# Prepares the object of an outgoing create activity.
def prepare_object(object) do
object
- |> set_sensitive
|> add_hashtags
|> add_mention_tags
|> add_emoji_tags
when activity_type in ["Create", "Listen"] do
object =
object_id
- |> Object.normalize()
+ |> Object.normalize(fetch: false)
|> Map.get(:data)
|> prepare_object
def prepare_outgoing(%{"type" => "Announce", "actor" => ap_id, "object" => object_id} = data) do
object =
object_id
- |> Object.normalize()
+ |> Object.normalize(fetch: false)
data =
if Visibility.is_private?(object) && object.data["actor"] == ap_id do
defp build_emoji_tag({name, url}) do
%{
- "icon" => %{"url" => url, "type" => "Image"},
+ "icon" => %{"url" => "#{URI.encode(url)}", "type" => "Image"},
"name" => ":" <> name <> ":",
"type" => "Emoji",
"updated" => "1970-01-01T00:00:00Z",
Map.put(object, "conversation", object["context"])
end
- def set_sensitive(%{"sensitive" => true} = object) do
- object
- end
-
- def set_sensitive(object) do
- tags = object["tag"] || []
- Map.put(object, "sensitive", "nsfw" in tags)
- end
-
def set_type(%{"type" => "Answer"} = object) do
Map.put(object, "type", "Note")
end
projects / akkoma / blobdiff