Hélène
3227ebf1e1
`context` fields for objects and activities can now be generated based on the object/activity `inReplyTo` field or its ActivityPub ID, as a fallback method in cases where `context` fields are missing for incoming activities and objects.
102 lines
3.2 KiB
Elixir
102 lines
3.2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes do
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alias Pleroma.EctoType.ActivityPub.ObjectValidators
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alias Pleroma.Object
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alias Pleroma.Object.Containment
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alias Pleroma.User
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alias Pleroma.Web.ActivityPub.Utils
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require Pleroma.Constants
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def cast_and_filter_recipients(message, field, follower_collection, field_fallback \\ []) do
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{:ok, data} = ObjectValidators.Recipients.cast(message[field] || field_fallback)
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data =
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Enum.reject(data, fn x ->
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String.ends_with?(x, "/followers") and x != follower_collection
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end)
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Map.put(message, field, data)
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end
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def fix_object_defaults(data) do
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context =
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Utils.maybe_create_context(
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data["context"] || data["conversation"] || data["inReplyTo"] || data["id"]
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)
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%User{follower_address: follower_collection} = User.get_cached_by_ap_id(data["attributedTo"])
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data
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|> Map.put("context", context)
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|> cast_and_filter_recipients("to", follower_collection)
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|> cast_and_filter_recipients("cc", follower_collection)
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|> cast_and_filter_recipients("bto", follower_collection)
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|> cast_and_filter_recipients("bcc", follower_collection)
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|> fix_implicit_addressing(follower_collection)
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end
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def fix_activity_addressing(activity) do
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%User{follower_address: follower_collection} = User.get_cached_by_ap_id(activity["actor"])
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activity
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|> cast_and_filter_recipients("to", follower_collection)
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|> cast_and_filter_recipients("cc", follower_collection)
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|> cast_and_filter_recipients("bto", follower_collection)
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|> cast_and_filter_recipients("bcc", follower_collection)
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|> fix_implicit_addressing(follower_collection)
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end
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def fix_actor(data) do
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actor =
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data
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|> Map.put_new("actor", data["attributedTo"])
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|> Containment.get_actor()
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data
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|> Map.put("actor", actor)
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|> Map.put("attributedTo", actor)
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end
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def fix_activity_context(data, %Object{data: %{"context" => object_context}}) do
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data
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|> Map.put("context", object_context)
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end
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def fix_object_action_recipients(%{"actor" => actor} = data, %Object{data: %{"actor" => actor}}) do
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to = ((data["to"] || []) -- [actor]) |> Enum.uniq()
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Map.put(data, "to", to)
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end
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def fix_object_action_recipients(data, %Object{data: %{"actor" => actor}}) do
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to = ((data["to"] || []) ++ [actor]) |> Enum.uniq()
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Map.put(data, "to", to)
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end
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# if as:Public is addressed, then make sure the followers collection is also addressed
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# so that the activities will be delivered to local users.
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def fix_implicit_addressing(%{"to" => to, "cc" => cc} = object, followers_collection) do
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recipients = to ++ cc
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if followers_collection not in recipients do
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cond do
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Pleroma.Constants.as_public() in cc ->
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to = to ++ [followers_collection]
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Map.put(object, "to", to)
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Pleroma.Constants.as_public() in to ->
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cc = cc ++ [followers_collection]
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Map.put(object, "cc", cc)
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true ->
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object
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end
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else
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object
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end
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end
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end
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