1150 lines
32 KiB
Elixir
1150 lines
32 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.Transmogrifier do
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@moduledoc """
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A module to handle coding from internal to wire ActivityPub and back.
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"""
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alias Pleroma.Activity
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alias Pleroma.Object
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alias Pleroma.Object.Containment
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alias Pleroma.Repo
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alias Pleroma.User
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alias Pleroma.Web.ActivityPub.ActivityPub
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alias Pleroma.Web.ActivityPub.Utils
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alias Pleroma.Web.ActivityPub.Visibility
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alias Pleroma.Web.Federator
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import Ecto.Query
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require Logger
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@doc """
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Modifies an incoming AP object (mastodon format) to our internal format.
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"""
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def fix_object(object, options \\ []) do
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object
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|> fix_actor
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|> fix_url
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|> fix_attachments
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|> fix_context
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|> fix_in_reply_to(options)
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|> fix_emoji
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|> fix_tag
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|> fix_content_map
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|> fix_likes
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|> fix_addressing
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|> fix_summary
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|> fix_type(options)
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end
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def fix_summary(%{"summary" => nil} = object) do
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object
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|> Map.put("summary", "")
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end
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def fix_summary(%{"summary" => _} = object) do
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# summary is present, nothing to do
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object
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end
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def fix_summary(object) do
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object
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|> Map.put("summary", "")
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end
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def fix_addressing_list(map, field) do
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cond do
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is_binary(map[field]) ->
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Map.put(map, field, [map[field]])
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is_nil(map[field]) ->
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Map.put(map, field, [])
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true ->
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map
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end
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end
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def fix_explicit_addressing(
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%{"to" => to, "cc" => cc} = object,
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explicit_mentions,
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follower_collection
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) do
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explicit_to =
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to
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|> Enum.filter(fn x -> x in explicit_mentions end)
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explicit_cc =
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to
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|> Enum.filter(fn x -> x not in explicit_mentions end)
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final_cc =
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(cc ++ explicit_cc)
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|> Enum.reject(fn x -> String.ends_with?(x, "/followers") and x != follower_collection end)
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|> Enum.uniq()
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object
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|> Map.put("to", explicit_to)
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|> Map.put("cc", final_cc)
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end
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def fix_explicit_addressing(object, _explicit_mentions, _followers_collection), do: object
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# if directMessage flag is set to true, leave the addressing alone
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def fix_explicit_addressing(%{"directMessage" => true} = object), do: object
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def fix_explicit_addressing(object) do
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explicit_mentions =
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object
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|> Utils.determine_explicit_mentions()
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follower_collection = User.get_cached_by_ap_id(Containment.get_actor(object)).follower_address
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explicit_mentions =
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explicit_mentions ++ ["https://www.w3.org/ns/activitystreams#Public", follower_collection]
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fix_explicit_addressing(object, explicit_mentions, follower_collection)
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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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"https://www.w3.org/ns/activitystreams#Public" in cc ->
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to = to ++ [followers_collection]
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Map.put(object, "to", to)
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"https://www.w3.org/ns/activitystreams#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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def fix_implicit_addressing(object, _), do: object
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def fix_addressing(object) do
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{:ok, %User{} = user} = User.get_or_fetch_by_ap_id(object["actor"])
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followers_collection = User.ap_followers(user)
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object
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|> fix_addressing_list("to")
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|> fix_addressing_list("cc")
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|> fix_addressing_list("bto")
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|> fix_addressing_list("bcc")
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|> fix_explicit_addressing()
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|> fix_implicit_addressing(followers_collection)
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end
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def fix_actor(%{"attributedTo" => actor} = object) do
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object
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|> Map.put("actor", Containment.get_actor(%{"actor" => actor}))
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end
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# Check for standardisation
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# This is what Peertube does
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# curl -H 'Accept: application/activity+json' $likes | jq .totalItems
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# Prismo returns only an integer (count) as "likes"
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def fix_likes(%{"likes" => likes} = object) when not is_map(likes) do
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object
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|> Map.put("likes", [])
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|> Map.put("like_count", 0)
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end
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def fix_likes(object) do
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object
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end
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def fix_in_reply_to(object, options \\ [])
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def fix_in_reply_to(%{"inReplyTo" => in_reply_to} = object, options)
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when not is_nil(in_reply_to) do
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in_reply_to_id =
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cond do
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is_bitstring(in_reply_to) ->
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in_reply_to
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is_map(in_reply_to) && is_bitstring(in_reply_to["id"]) ->
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in_reply_to["id"]
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is_list(in_reply_to) && is_bitstring(Enum.at(in_reply_to, 0)) ->
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Enum.at(in_reply_to, 0)
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# Maybe I should output an error too?
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true ->
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""
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end
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object = Map.put(object, "inReplyToAtomUri", in_reply_to_id)
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if Federator.allowed_incoming_reply_depth?(options[:depth]) do
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case get_obj_helper(in_reply_to_id, options) do
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{:ok, replied_object} ->
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with %Activity{} = _activity <-
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Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
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object
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|> Map.put("inReplyTo", replied_object.data["id"])
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|> Map.put("inReplyToAtomUri", object["inReplyToAtomUri"] || in_reply_to_id)
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|> Map.put("conversation", replied_object.data["context"] || object["conversation"])
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|> Map.put("context", replied_object.data["context"] || object["conversation"])
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else
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e ->
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Logger.error("Couldn't fetch \"#{inspect(in_reply_to_id)}\", error: #{inspect(e)}")
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object
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end
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e ->
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Logger.error("Couldn't fetch \"#{inspect(in_reply_to_id)}\", error: #{inspect(e)}")
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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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def fix_in_reply_to(object, _options), do: object
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def fix_context(object) do
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context = object["context"] || object["conversation"] || Utils.generate_context_id()
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object
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|> Map.put("context", context)
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|> Map.put("conversation", context)
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end
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def fix_attachments(%{"attachment" => attachment} = object) when is_list(attachment) do
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attachments =
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attachment
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|> Enum.map(fn data ->
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media_type = data["mediaType"] || data["mimeType"]
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href = data["url"] || data["href"]
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url = [%{"type" => "Link", "mediaType" => media_type, "href" => href}]
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data
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|> Map.put("mediaType", media_type)
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|> Map.put("url", url)
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end)
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object
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|> Map.put("attachment", attachments)
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end
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def fix_attachments(%{"attachment" => attachment} = object) when is_map(attachment) do
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Map.put(object, "attachment", [attachment])
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|> fix_attachments()
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end
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def fix_attachments(object), do: object
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def fix_url(%{"url" => url} = object) when is_map(url) do
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object
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|> Map.put("url", url["href"])
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end
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def fix_url(%{"type" => "Video", "url" => url} = object) when is_list(url) do
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first_element = Enum.at(url, 0)
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link_element =
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url
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|> Enum.filter(fn x -> is_map(x) end)
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|> Enum.filter(fn x -> x["mimeType"] == "text/html" end)
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|> Enum.at(0)
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object
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|> Map.put("attachment", [first_element])
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|> Map.put("url", link_element["href"])
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end
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def fix_url(%{"type" => object_type, "url" => url} = object)
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when object_type != "Video" and is_list(url) do
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first_element = Enum.at(url, 0)
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url_string =
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cond do
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is_bitstring(first_element) -> first_element
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is_map(first_element) -> first_element["href"] || ""
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true -> ""
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end
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object
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|> Map.put("url", url_string)
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end
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def fix_url(object), do: object
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def fix_emoji(%{"tag" => tags} = object) when is_list(tags) do
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emoji = tags |> Enum.filter(fn data -> data["type"] == "Emoji" and data["icon"] end)
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emoji =
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emoji
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|> Enum.reduce(%{}, fn data, mapping ->
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name = String.trim(data["name"], ":")
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mapping |> Map.put(name, data["icon"]["url"])
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end)
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# we merge mastodon and pleroma emoji into a single mapping, to allow for both wire formats
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emoji = Map.merge(object["emoji"] || %{}, emoji)
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object
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|> Map.put("emoji", emoji)
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end
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def fix_emoji(%{"tag" => %{"type" => "Emoji"} = tag} = object) do
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name = String.trim(tag["name"], ":")
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emoji = %{name => tag["icon"]["url"]}
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object
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|> Map.put("emoji", emoji)
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end
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def fix_emoji(object), do: object
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def fix_tag(%{"tag" => tag} = object) when is_list(tag) do
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tags =
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tag
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|> Enum.filter(fn data -> data["type"] == "Hashtag" and data["name"] end)
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|> Enum.map(fn data -> String.slice(data["name"], 1..-1) end)
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combined = tag ++ tags
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object
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|> Map.put("tag", combined)
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end
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def fix_tag(%{"tag" => %{"type" => "Hashtag", "name" => hashtag} = tag} = object) do
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combined = [tag, String.slice(hashtag, 1..-1)]
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object
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|> Map.put("tag", combined)
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end
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def fix_tag(%{"tag" => %{} = tag} = object), do: Map.put(object, "tag", [tag])
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def fix_tag(object), do: object
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# content map usually only has one language so this will do for now.
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def fix_content_map(%{"contentMap" => content_map} = object) do
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content_groups = Map.to_list(content_map)
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{_, content} = Enum.at(content_groups, 0)
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object
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|> Map.put("content", content)
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end
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def fix_content_map(object), do: object
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def fix_type(object, options \\ [])
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def fix_type(%{"inReplyTo" => reply_id} = object, options) when is_binary(reply_id) do
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reply =
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if Federator.allowed_incoming_reply_depth?(options[:depth]) do
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Object.normalize(reply_id, true)
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end
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if reply && (reply.data["type"] == "Question" and object["name"]) do
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Map.put(object, "type", "Answer")
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else
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object
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end
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end
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def fix_type(object, _), do: object
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defp mastodon_follow_hack(%{"id" => id, "actor" => follower_id}, followed) do
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with true <- id =~ "follows",
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%User{local: true} = follower <- User.get_cached_by_ap_id(follower_id),
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%Activity{} = activity <- Utils.fetch_latest_follow(follower, followed) do
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{:ok, activity}
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else
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_ -> {:error, nil}
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end
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end
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defp mastodon_follow_hack(_, _), do: {:error, nil}
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defp get_follow_activity(follow_object, followed) do
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with object_id when not is_nil(object_id) <- Utils.get_ap_id(follow_object),
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{_, %Activity{} = activity} <- {:activity, Activity.get_by_ap_id(object_id)} do
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{:ok, activity}
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else
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# Can't find the activity. This might a Mastodon 2.3 "Accept"
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{:activity, nil} ->
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mastodon_follow_hack(follow_object, followed)
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_ ->
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{:error, nil}
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end
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end
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def handle_incoming(data, options \\ [])
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# Flag objects are placed ahead of the ID check because Mastodon 2.8 and earlier send them
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# with nil ID.
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def handle_incoming(%{"type" => "Flag", "object" => objects, "actor" => actor} = data, _options) do
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with context <- data["context"] || Utils.generate_context_id(),
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content <- data["content"] || "",
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%User{} = actor <- User.get_cached_by_ap_id(actor),
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# Reduce the object list to find the reported user.
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%User{} = account <-
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Enum.reduce_while(objects, nil, fn ap_id, _ ->
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with %User{} = user <- User.get_cached_by_ap_id(ap_id) do
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{:halt, user}
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else
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_ -> {:cont, nil}
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end
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end),
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# Remove the reported user from the object list.
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statuses <- Enum.filter(objects, fn ap_id -> ap_id != account.ap_id end) do
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params = %{
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actor: actor,
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context: context,
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account: account,
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statuses: statuses,
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content: content,
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additional: %{
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"cc" => [account.ap_id]
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}
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}
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ActivityPub.flag(params)
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end
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end
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# disallow objects with bogus IDs
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def handle_incoming(%{"id" => nil}, _options), do: :error
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def handle_incoming(%{"id" => ""}, _options), do: :error
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# length of https:// = 8, should validate better, but good enough for now.
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def handle_incoming(%{"id" => id}, _options) when not (is_binary(id) and length(id) > 8),
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do: :error
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# TODO: validate those with a Ecto scheme
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# - tags
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# - emoji
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def handle_incoming(
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%{"type" => "Create", "object" => %{"type" => objtype} = object} = data,
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options
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)
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when objtype in ["Article", "Note", "Video", "Page", "Question", "Answer"] do
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actor = Containment.get_actor(data)
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data =
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Map.put(data, "actor", actor)
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|> fix_addressing
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with nil <- Activity.get_create_by_object_ap_id(object["id"]),
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{:ok, %User{} = user} <- User.get_or_fetch_by_ap_id(data["actor"]) do
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options = Keyword.put(options, :depth, (options[:depth] || 0) + 1)
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object = fix_object(data["object"], options)
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params = %{
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to: data["to"],
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object: object,
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actor: user,
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context: object["conversation"],
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local: false,
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published: data["published"],
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additional:
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Map.take(data, [
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"cc",
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"directMessage",
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"id"
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])
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}
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ActivityPub.create(params)
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else
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%Activity{} = activity -> {:ok, activity}
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_e -> :error
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end
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end
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def handle_incoming(
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%{"type" => "Follow", "object" => followed, "actor" => follower, "id" => id} = data,
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_options
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) do
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with %User{local: true} = followed <- User.get_cached_by_ap_id(followed),
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{:ok, %User{} = follower} <- User.get_or_fetch_by_ap_id(follower),
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{:ok, activity} <- ActivityPub.follow(follower, followed, id, false) do
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with deny_follow_blocked <- Pleroma.Config.get([:user, :deny_follow_blocked]),
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{_, false} <-
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{:user_blocked, User.blocks?(followed, follower) && deny_follow_blocked},
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{_, false} <- {:user_locked, User.locked?(followed)},
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{_, {:ok, follower}} <- {:follow, User.follow(follower, followed)},
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{_, {:ok, _}} <-
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{:follow_state_update, Utils.update_follow_state_for_all(activity, "accept")} do
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ActivityPub.accept(%{
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to: [follower.ap_id],
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actor: followed,
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object: data,
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local: true
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})
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else
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{:user_blocked, true} ->
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{:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
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ActivityPub.reject(%{
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to: [follower.ap_id],
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actor: followed,
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object: data,
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local: true
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})
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{:follow, {:error, _}} ->
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{:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
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ActivityPub.reject(%{
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to: [follower.ap_id],
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actor: followed,
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object: data,
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local: true
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})
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{:user_locked, true} ->
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:noop
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end
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{:ok, activity}
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else
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_e ->
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:error
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end
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end
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def handle_incoming(
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%{"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, _follower} = User.follow(follower, followed) do
|
|
ActivityPub.accept(%{
|
|
to: follow_activity.data["to"],
|
|
type: "Accept",
|
|
actor: followed,
|
|
object: follow_activity.data["id"],
|
|
local: false
|
|
})
|
|
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, activity} <-
|
|
ActivityPub.reject(%{
|
|
to: follow_activity.data["to"],
|
|
type: "Reject",
|
|
actor: followed,
|
|
object: follow_activity.data["id"],
|
|
local: false
|
|
}) do
|
|
User.unfollow(follower, followed)
|
|
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{"type" => "Like", "object" => object_id, "actor" => _actor, "id" => id} = data,
|
|
_options
|
|
) do
|
|
with actor <- Containment.get_actor(data),
|
|
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
|
|
{:ok, object} <- get_obj_helper(object_id),
|
|
{:ok, activity, _object} <- ActivityPub.like(actor, object, id, false) do
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{"type" => "Announce", "object" => object_id, "actor" => _actor, "id" => id} = data,
|
|
_options
|
|
) do
|
|
with actor <- Containment.get_actor(data),
|
|
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
|
|
{:ok, object} <- get_obj_helper(object_id),
|
|
public <- Visibility.is_public?(data),
|
|
{:ok, activity, _object} <- ActivityPub.announce(actor, object, id, false, public) do
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{"type" => "Update", "object" => %{"type" => object_type} = object, "actor" => actor_id} =
|
|
data,
|
|
_options
|
|
)
|
|
when object_type in ["Person", "Application", "Service", "Organization"] do
|
|
with %User{ap_id: ^actor_id} = actor <- User.get_cached_by_ap_id(object["id"]) do
|
|
{:ok, new_user_data} = ActivityPub.user_data_from_user_object(object)
|
|
|
|
banner = new_user_data[:info]["banner"]
|
|
locked = new_user_data[:info]["locked"] || false
|
|
|
|
update_data =
|
|
new_user_data
|
|
|> Map.take([:name, :bio, :avatar])
|
|
|> Map.put(:info, %{"banner" => banner, "locked" => locked})
|
|
|
|
actor
|
|
|> User.upgrade_changeset(update_data)
|
|
|> User.update_and_set_cache()
|
|
|
|
ActivityPub.update(%{
|
|
local: false,
|
|
to: data["to"] || [],
|
|
cc: data["cc"] || [],
|
|
object: object,
|
|
actor: actor_id
|
|
})
|
|
else
|
|
e ->
|
|
Logger.error(e)
|
|
:error
|
|
end
|
|
end
|
|
|
|
# TODO: We presently assume that any actor on the same origin domain as the object being
|
|
# deleted has the rights to delete that object. A better way to validate whether or not
|
|
# the object should be deleted is to refetch the object URI, which should return either
|
|
# an error or a tombstone. This would allow us to verify that a deletion actually took
|
|
# place.
|
|
def handle_incoming(
|
|
%{"type" => "Delete", "object" => object_id, "actor" => actor, "id" => _id} = data,
|
|
_options
|
|
) do
|
|
object_id = Utils.get_ap_id(object_id)
|
|
|
|
with actor <- Containment.get_actor(data),
|
|
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
|
|
{:ok, object} <- get_obj_helper(object_id),
|
|
:ok <- Containment.contain_origin(actor.ap_id, object.data),
|
|
{:ok, activity} <- ActivityPub.delete(object, false) do
|
|
{:ok, activity}
|
|
else
|
|
nil ->
|
|
case User.get_cached_by_ap_id(object_id) do
|
|
%User{ap_id: ^actor} = user ->
|
|
{:ok, followers} = User.get_followers(user)
|
|
|
|
Enum.each(followers, fn follower ->
|
|
User.unfollow(follower, user)
|
|
end)
|
|
|
|
{:ok, friends} = User.get_friends(user)
|
|
|
|
Enum.each(friends, fn followed ->
|
|
User.unfollow(user, followed)
|
|
end)
|
|
|
|
User.invalidate_cache(user)
|
|
Repo.delete(user)
|
|
|
|
nil ->
|
|
:error
|
|
end
|
|
|
|
_e ->
|
|
:error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{
|
|
"type" => "Undo",
|
|
"object" => %{"type" => "Announce", "object" => object_id},
|
|
"actor" => _actor,
|
|
"id" => id
|
|
} = data,
|
|
_options
|
|
) do
|
|
with actor <- Containment.get_actor(data),
|
|
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
|
|
{:ok, object} <- get_obj_helper(object_id),
|
|
{:ok, activity, _} <- ActivityPub.unannounce(actor, object, id, false) do
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{
|
|
"type" => "Undo",
|
|
"object" => %{"type" => "Follow", "object" => followed},
|
|
"actor" => follower,
|
|
"id" => id
|
|
} = _data,
|
|
_options
|
|
) do
|
|
with %User{local: true} = followed <- User.get_cached_by_ap_id(followed),
|
|
{:ok, %User{} = follower} <- User.get_or_fetch_by_ap_id(follower),
|
|
{:ok, activity} <- ActivityPub.unfollow(follower, followed, id, false) do
|
|
User.unfollow(follower, followed)
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{
|
|
"type" => "Undo",
|
|
"object" => %{"type" => "Block", "object" => blocked},
|
|
"actor" => blocker,
|
|
"id" => id
|
|
} = _data,
|
|
_options
|
|
) do
|
|
with true <- Pleroma.Config.get([:activitypub, :accept_blocks]),
|
|
%User{local: true} = blocked <- User.get_cached_by_ap_id(blocked),
|
|
{:ok, %User{} = blocker} <- User.get_or_fetch_by_ap_id(blocker),
|
|
{:ok, activity} <- ActivityPub.unblock(blocker, blocked, id, false) do
|
|
User.unblock(blocker, blocked)
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{"type" => "Block", "object" => blocked, "actor" => blocker, "id" => id} = _data,
|
|
_options
|
|
) do
|
|
with true <- Pleroma.Config.get([:activitypub, :accept_blocks]),
|
|
%User{local: true} = blocked = User.get_cached_by_ap_id(blocked),
|
|
{:ok, %User{} = blocker} = User.get_or_fetch_by_ap_id(blocker),
|
|
{:ok, activity} <- ActivityPub.block(blocker, blocked, id, false) do
|
|
User.unfollow(blocker, blocked)
|
|
User.block(blocker, blocked)
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(
|
|
%{
|
|
"type" => "Undo",
|
|
"object" => %{"type" => "Like", "object" => object_id},
|
|
"actor" => _actor,
|
|
"id" => id
|
|
} = data,
|
|
_options
|
|
) do
|
|
with actor <- Containment.get_actor(data),
|
|
{:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
|
|
{:ok, object} <- get_obj_helper(object_id),
|
|
{:ok, activity, _, _} <- ActivityPub.unlike(actor, object, id, false) do
|
|
{:ok, activity}
|
|
else
|
|
_e -> :error
|
|
end
|
|
end
|
|
|
|
def handle_incoming(_, _), do: :error
|
|
|
|
def get_obj_helper(id, options \\ []) do
|
|
if object = Object.normalize(id, true, options), do: {:ok, object}, else: nil
|
|
end
|
|
|
|
def set_reply_to_uri(%{"inReplyTo" => in_reply_to} = object) when is_binary(in_reply_to) do
|
|
with false <- String.starts_with?(in_reply_to, "http"),
|
|
{:ok, %{data: replied_to_object}} <- get_obj_helper(in_reply_to) do
|
|
Map.put(object, "inReplyTo", replied_to_object["external_url"] || in_reply_to)
|
|
else
|
|
_e -> object
|
|
end
|
|
end
|
|
|
|
def set_reply_to_uri(obj), do: obj
|
|
|
|
# Prepares the object of an outgoing create activity.
|
|
def prepare_object(object) do
|
|
object
|
|
|> set_sensitive
|
|
|> add_hashtags
|
|
|> add_mention_tags
|
|
|> add_emoji_tags
|
|
|> add_attributed_to
|
|
|> add_likes
|
|
|> prepare_attachments
|
|
|> set_conversation
|
|
|> set_reply_to_uri
|
|
|> strip_internal_fields
|
|
|> strip_internal_tags
|
|
|> set_type
|
|
end
|
|
|
|
# @doc
|
|
# """
|
|
# internal -> Mastodon
|
|
# """
|
|
|
|
def prepare_outgoing(%{"type" => "Create", "object" => object_id} = data) do
|
|
object =
|
|
Object.normalize(object_id).data
|
|
|> prepare_object
|
|
|
|
data =
|
|
data
|
|
|> Map.put("object", object)
|
|
|> Map.merge(Utils.make_json_ld_header())
|
|
|
|
{:ok, data}
|
|
end
|
|
|
|
# Mastodon Accept/Reject requires a non-normalized object containing the actor URIs,
|
|
# because of course it does.
|
|
def prepare_outgoing(%{"type" => "Accept"} = data) do
|
|
with follow_activity <- Activity.normalize(data["object"]) do
|
|
object = %{
|
|
"actor" => follow_activity.actor,
|
|
"object" => follow_activity.data["object"],
|
|
"id" => follow_activity.data["id"],
|
|
"type" => "Follow"
|
|
}
|
|
|
|
data =
|
|
data
|
|
|> Map.put("object", object)
|
|
|> Map.merge(Utils.make_json_ld_header())
|
|
|
|
{:ok, data}
|
|
end
|
|
end
|
|
|
|
def prepare_outgoing(%{"type" => "Reject"} = data) do
|
|
with follow_activity <- Activity.normalize(data["object"]) do
|
|
object = %{
|
|
"actor" => follow_activity.actor,
|
|
"object" => follow_activity.data["object"],
|
|
"id" => follow_activity.data["id"],
|
|
"type" => "Follow"
|
|
}
|
|
|
|
data =
|
|
data
|
|
|> Map.put("object", object)
|
|
|> Map.merge(Utils.make_json_ld_header())
|
|
|
|
{:ok, data}
|
|
end
|
|
end
|
|
|
|
def prepare_outgoing(%{"type" => _type} = data) do
|
|
data =
|
|
data
|
|
|> strip_internal_fields
|
|
|> maybe_fix_object_url
|
|
|> Map.merge(Utils.make_json_ld_header())
|
|
|
|
{:ok, data}
|
|
end
|
|
|
|
def maybe_fix_object_url(data) do
|
|
if is_binary(data["object"]) and not String.starts_with?(data["object"], "http") do
|
|
case get_obj_helper(data["object"]) do
|
|
{:ok, relative_object} ->
|
|
if relative_object.data["external_url"] do
|
|
_data =
|
|
data
|
|
|> Map.put("object", relative_object.data["external_url"])
|
|
else
|
|
data
|
|
end
|
|
|
|
e ->
|
|
Logger.error("Couldn't fetch #{data["object"]} #{inspect(e)}")
|
|
data
|
|
end
|
|
else
|
|
data
|
|
end
|
|
end
|
|
|
|
def add_hashtags(object) do
|
|
tags =
|
|
(object["tag"] || [])
|
|
|> Enum.map(fn
|
|
# Expand internal representation tags into AS2 tags.
|
|
tag when is_binary(tag) ->
|
|
%{
|
|
"href" => Pleroma.Web.Endpoint.url() <> "/tags/#{tag}",
|
|
"name" => "##{tag}",
|
|
"type" => "Hashtag"
|
|
}
|
|
|
|
# Do not process tags which are already AS2 tag objects.
|
|
tag when is_map(tag) ->
|
|
tag
|
|
end)
|
|
|
|
object
|
|
|> Map.put("tag", tags)
|
|
end
|
|
|
|
def add_mention_tags(object) do
|
|
mentions =
|
|
object
|
|
|> Utils.get_notified_from_object()
|
|
|> Enum.map(fn user ->
|
|
%{"type" => "Mention", "href" => user.ap_id, "name" => "@#{user.nickname}"}
|
|
end)
|
|
|
|
tags = object["tag"] || []
|
|
|
|
object
|
|
|> Map.put("tag", tags ++ mentions)
|
|
end
|
|
|
|
def add_emoji_tags(%User{info: %{"emoji" => _emoji} = user_info} = object) do
|
|
user_info = add_emoji_tags(user_info)
|
|
|
|
object
|
|
|> Map.put(:info, user_info)
|
|
end
|
|
|
|
# TODO: we should probably send mtime instead of unix epoch time for updated
|
|
def add_emoji_tags(%{"emoji" => emoji} = object) do
|
|
tags = object["tag"] || []
|
|
|
|
out =
|
|
emoji
|
|
|> Enum.map(fn {name, url} ->
|
|
%{
|
|
"icon" => %{"url" => url, "type" => "Image"},
|
|
"name" => ":" <> name <> ":",
|
|
"type" => "Emoji",
|
|
"updated" => "1970-01-01T00:00:00Z",
|
|
"id" => url
|
|
}
|
|
end)
|
|
|
|
object
|
|
|> Map.put("tag", tags ++ out)
|
|
end
|
|
|
|
def add_emoji_tags(object) do
|
|
object
|
|
end
|
|
|
|
def set_conversation(object) do
|
|
Map.put(object, "conversation", object["context"])
|
|
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
|
|
|
|
def set_type(object), do: object
|
|
|
|
def add_attributed_to(object) do
|
|
attributed_to = object["attributedTo"] || object["actor"]
|
|
|
|
object
|
|
|> Map.put("attributedTo", attributed_to)
|
|
end
|
|
|
|
def add_likes(%{"id" => id, "like_count" => likes} = object) do
|
|
likes = %{
|
|
"id" => "#{id}/likes",
|
|
"first" => "#{id}/likes?page=1",
|
|
"type" => "OrderedCollection",
|
|
"totalItems" => likes
|
|
}
|
|
|
|
object
|
|
|> Map.put("likes", likes)
|
|
end
|
|
|
|
def add_likes(object) do
|
|
object
|
|
end
|
|
|
|
def prepare_attachments(object) do
|
|
attachments =
|
|
(object["attachment"] || [])
|
|
|> Enum.map(fn data ->
|
|
[%{"mediaType" => media_type, "href" => href} | _] = data["url"]
|
|
%{"url" => href, "mediaType" => media_type, "name" => data["name"], "type" => "Document"}
|
|
end)
|
|
|
|
object
|
|
|> Map.put("attachment", attachments)
|
|
end
|
|
|
|
defp strip_internal_fields(object) do
|
|
object
|
|
|> Map.drop([
|
|
"like_count",
|
|
"announcements",
|
|
"announcement_count",
|
|
"emoji",
|
|
"context_id",
|
|
"deleted_activity_id"
|
|
])
|
|
end
|
|
|
|
defp strip_internal_tags(%{"tag" => tags} = object) do
|
|
tags =
|
|
tags
|
|
|> Enum.filter(fn x -> is_map(x) end)
|
|
|
|
object
|
|
|> Map.put("tag", tags)
|
|
end
|
|
|
|
defp strip_internal_tags(object), do: object
|
|
|
|
def perform(:user_upgrade, user) do
|
|
# we pass a fake user so that the followers collection is stripped away
|
|
old_follower_address = User.ap_followers(%User{nickname: user.nickname})
|
|
|
|
q =
|
|
from(
|
|
u in User,
|
|
where: ^old_follower_address in u.following,
|
|
update: [
|
|
set: [
|
|
following:
|
|
fragment(
|
|
"array_replace(?,?,?)",
|
|
u.following,
|
|
^old_follower_address,
|
|
^user.follower_address
|
|
)
|
|
]
|
|
]
|
|
)
|
|
|
|
Repo.update_all(q, [])
|
|
|
|
maybe_retire_websub(user.ap_id)
|
|
|
|
q =
|
|
from(
|
|
a in Activity,
|
|
where: ^old_follower_address in a.recipients,
|
|
update: [
|
|
set: [
|
|
recipients:
|
|
fragment(
|
|
"array_replace(?,?,?)",
|
|
a.recipients,
|
|
^old_follower_address,
|
|
^user.follower_address
|
|
)
|
|
]
|
|
]
|
|
)
|
|
|
|
Repo.update_all(q, [])
|
|
end
|
|
|
|
def upgrade_user_from_ap_id(ap_id) do
|
|
with %User{local: false} = user <- User.get_cached_by_ap_id(ap_id),
|
|
{:ok, data} <- ActivityPub.fetch_and_prepare_user_from_ap_id(ap_id),
|
|
already_ap <- User.ap_enabled?(user),
|
|
{:ok, user} <- user |> User.upgrade_changeset(data) |> User.update_and_set_cache() do
|
|
unless already_ap do
|
|
PleromaJobQueue.enqueue(:transmogrifier, __MODULE__, [:user_upgrade, user])
|
|
end
|
|
|
|
if Pleroma.Config.get([:instance, :external_user_synchronization]) do
|
|
update_following_followers_counters(user)
|
|
end
|
|
|
|
{:ok, user}
|
|
else
|
|
%User{} = user -> {:ok, user}
|
|
e -> e
|
|
end
|
|
end
|
|
|
|
def maybe_retire_websub(ap_id) do
|
|
# some sanity checks
|
|
if is_binary(ap_id) && String.length(ap_id) > 8 do
|
|
q =
|
|
from(
|
|
ws in Pleroma.Web.Websub.WebsubClientSubscription,
|
|
where: fragment("? like ?", ws.topic, ^"#{ap_id}%")
|
|
)
|
|
|
|
Repo.delete_all(q)
|
|
end
|
|
end
|
|
|
|
def maybe_fix_user_url(data) do
|
|
if is_map(data["url"]) do
|
|
Map.put(data, "url", data["url"]["href"])
|
|
else
|
|
data
|
|
end
|
|
end
|
|
|
|
def maybe_fix_user_object(data) do
|
|
data
|
|
|> maybe_fix_user_url
|
|
end
|
|
|
|
def update_following_followers_counters(user) do
|
|
info = %{}
|
|
|
|
following = fetch_counter(user.following_address)
|
|
info = if following, do: Map.put(info, :following_count, following), else: info
|
|
|
|
followers = fetch_counter(user.follower_address)
|
|
info = if followers, do: Map.put(info, :follower_count, followers), else: info
|
|
|
|
User.set_info_cache(user, info)
|
|
end
|
|
|
|
defp fetch_counter(url) do
|
|
with {:ok, %{body: body, status: code}} when code in 200..299 <-
|
|
Pleroma.HTTP.get(
|
|
url,
|
|
[{:Accept, "application/activity+json"}]
|
|
),
|
|
{:ok, data} <- Jason.decode(body) do
|
|
data["totalItems"]
|
|
end
|
|
end
|
|
end
|