akkoma/lib/pleroma/web/activity_pub/transmogrifier.ex

1060 lines
29 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.Transmogrifier do
@moduledoc """
A module to handle coding from internal to wire ActivityPub and back.
"""
alias Pleroma.Activity
alias Pleroma.EctoType.ActivityPub.ObjectValidators
alias Pleroma.Maps
alias Pleroma.Object
alias Pleroma.Object.Containment
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Builder
alias Pleroma.Web.ActivityPub.ObjectValidator
alias Pleroma.Web.ActivityPub.Pipeline
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.ActivityPub.Visibility
alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes
alias Pleroma.Web.Federator
alias Pleroma.Workers.TransmogrifierWorker
import Ecto.Query
require Pleroma.Constants
require Logger
@doc """
Modifies an incoming AP object (mastodon format) to our internal format.
"""
def fix_object(object, options \\ []) do
object
|> strip_internal_fields()
|> fix_actor()
|> fix_url()
|> fix_attachments()
|> fix_context()
|> fix_in_reply_to(options)
|> fix_quote_url(options)
|> fix_emoji()
|> fix_tag()
|> fix_content_map()
|> fix_addressing()
|> fix_summary()
end
def fix_summary(%{"summary" => nil} = object) do
Map.put(object, "summary", "")
end
def fix_summary(%{"summary" => _} = object) do
# summary is present, nothing to do
object
end
def fix_summary(object), do: Map.put(object, "summary", "")
defp fix_addressing_list(addrs) do
cond do
is_list(addrs) -> Enum.filter(addrs, &is_binary/1)
is_binary(addrs) -> [addrs]
true -> []
end
end
# Due to JSON-LD simply "Public" and "as:Public" are equivalent to the full URI
# but to simplify later checks we only want to deal with one reperesentation internally
defp normalise_addressing_public_list(map, all_fields)
defp normalise_addressing_public_list(%{} = map, [field | fields]) do
full_uri = Pleroma.Constants.as_public()
map =
if map[field] != nil do
new_fval =
map[field]
|> fix_addressing_list()
|> Enum.map(fn
"Public" -> full_uri
"as:Public" -> full_uri
x -> x
end)
Map.put(map, field, new_fval)
else
map
end
normalise_addressing_public_list(map, fields)
end
defp normalise_addressing_public_list(map, _) do
map
end
defp normalise_addressing_public(map) do
normalise_addressing_public_list(map, ["to", "cc", "bto", "bcc"])
end
# if directMessage flag is set to true, leave the addressing alone
def fix_explicit_addressing(%{"directMessage" => true} = object, _follower_collection),
do: object
def fix_explicit_addressing(%{"to" => to, "cc" => cc} = object, follower_collection) do
explicit_mentions =
Utils.determine_explicit_mentions(object) ++
[Pleroma.Constants.as_public(), follower_collection]
explicit_to = Enum.filter(to, fn x -> x in explicit_mentions end)
explicit_cc = Enum.filter(to, fn x -> x not in explicit_mentions end)
final_cc =
(cc ++ explicit_cc)
|> Enum.filter(& &1)
|> Enum.reject(fn x -> String.ends_with?(x, "/followers") and x != follower_collection end)
|> Enum.uniq()
object
|> Map.put("to", explicit_to)
|> Map.put("cc", final_cc)
end
def fix_addressing_list_key(map, field) do
Map.put(map, field, fix_addressing_list(map[field]))
end
def fix_addressing(object) do
{:ok, %User{follower_address: follower_collection}} =
object
|> Containment.get_actor()
|> User.get_or_fetch_by_ap_id()
object
|> fix_addressing_list_key("to")
|> fix_addressing_list_key("cc")
|> fix_addressing_list_key("bto")
|> fix_addressing_list_key("bcc")
|> fix_explicit_addressing(follower_collection)
|> CommonFixes.fix_implicit_addressing(follower_collection)
end
def fix_actor(%{"attributedTo" => actor} = object) do
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)
depth = (options[:depth] || 0) + 1
if Federator.allowed_thread_distance?(depth) do
with {:ok, replied_object} <- get_obj_helper(in_reply_to_id, options),
%Activity{} <- Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
object
|> Map.put("inReplyTo", replied_object.data["id"])
|> Map.put("context", replied_object.data["context"] || object["conversation"])
|> Map.drop(["conversation", "inReplyToAtomUri"])
else
_ ->
object
end
else
object
end
end
def fix_in_reply_to(object, _options), do: object
def fix_quote_url(object, options \\ [])
def fix_quote_url(%{"quoteUri" => quote_url} = object, options)
when not is_nil(quote_url) do
depth = (options[:depth] || 0) + 1
if Federator.allowed_thread_distance?(depth) do
with {:ok, quoted_object} <- get_obj_helper(quote_url, options),
%Activity{} <- Activity.get_create_by_object_ap_id(quoted_object.data["id"]) do
object
|> Map.put("quoteUri", quoted_object.data["id"])
else
e ->
Logger.warning("Couldn't fetch quote@#{inspect(quote_url)}, error: #{inspect(e)}")
object
end
else
object
end
end
# Soapbox
def fix_quote_url(%{"quoteUrl" => quote_url} = object, options) do
object
|> Map.put("quoteUri", quote_url)
|> Map.delete("quoteUrl")
|> fix_quote_url(options)
end
# Old Fedibird (bug)
# https://github.com/fedibird/mastodon/issues/9
def fix_quote_url(%{"quoteURL" => quote_url} = object, options) do
object
|> Map.put("quoteUri", quote_url)
|> Map.delete("quoteURL")
|> fix_quote_url(options)
end
def fix_quote_url(%{"_misskey_quote" => quote_url} = object, options) do
object
|> Map.put("quoteUri", quote_url)
|> Map.delete("_misskey_quote")
|> fix_quote_url(options)
end
def fix_quote_url(object, _), do: object
defp prepare_in_reply_to(in_reply_to) do
cond do
is_bitstring(in_reply_to) ->
in_reply_to
is_map(in_reply_to) && is_bitstring(in_reply_to["id"]) ->
in_reply_to["id"]
is_list(in_reply_to) && is_bitstring(Enum.at(in_reply_to, 0)) ->
Enum.at(in_reply_to, 0)
true ->
""
end
end
def fix_context(object) do
context = object["context"] || object["conversation"] || Utils.generate_context_id()
object
|> Map.put("context", context)
|> Map.drop(["conversation"])
end
def fix_attachments(%{"attachment" => attachment} = object) when is_list(attachment) do
attachments =
Enum.map(attachment, fn data ->
url =
cond do
is_list(data["url"]) -> List.first(data["url"])
is_map(data["url"]) -> data["url"]
true -> nil
end
media_type =
cond do
is_map(url) && MIME.extensions(url["mediaType"]) != [] ->
url["mediaType"]
is_bitstring(data["mediaType"]) && MIME.extensions(data["mediaType"]) != [] ->
data["mediaType"]
is_bitstring(data["mimeType"]) && MIME.extensions(data["mimeType"]) != [] ->
data["mimeType"]
true ->
nil
end
href =
cond do
is_map(url) && is_binary(url["href"]) -> url["href"]
is_binary(data["url"]) -> data["url"]
is_binary(data["href"]) -> data["href"]
true -> nil
end
if href do
attachment_url =
%{
"href" => href,
"type" => Map.get(url || %{}, "type", "Link")
}
|> Maps.put_if_present("mediaType", media_type)
|> Maps.put_if_present("width", (url || %{})["width"] || data["width"])
|> Maps.put_if_present("height", (url || %{})["height"] || data["height"])
%{
"url" => [attachment_url],
"type" => data["type"] || "Document"
}
|> Maps.put_if_present("mediaType", media_type)
|> Maps.put_if_present("name", data["name"])
|> Maps.put_if_present("blurhash", data["blurhash"])
else
nil
end
end)
|> Enum.filter(& &1)
Map.put(object, "attachment", attachments)
end
def fix_attachments(%{"attachment" => attachment} = object) when is_map(attachment) do
object
|> Map.put("attachment", [attachment])
|> fix_attachments()
end
def fix_attachments(object), do: object
def fix_url(%{"url" => url} = object) when is_map(url) do
Map.put(object, "url", url["href"])
end
def fix_url(%{"url" => url} = object) when is_list(url) do
first_element = Enum.at(url, 0)
url_string =
cond do
is_bitstring(first_element) -> first_element
is_map(first_element) -> first_element["href"] || ""
true -> ""
end
Map.put(object, "url", url_string)
end
def fix_url(object), do: object
def fix_emoji(%{"tag" => tags} = object) when is_list(tags) do
emoji =
tags
|> 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)
Map.put(object, "emoji", emoji)
end
def fix_emoji(%{"tag" => %{"type" => "Emoji"} = tag} = object) do
name = String.trim(tag["name"], ":")
emoji = %{name => tag["icon"]["url"]}
Map.put(object, "emoji", emoji)
end
def fix_emoji(object), do: object
def fix_tag(%{"tag" => tag} = object) when is_list(tag) do
tags =
tag
|> Enum.filter(fn data -> data["type"] == "Hashtag" and data["name"] 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" => %{} = tag} = object) do
object
|> Map.put("tag", [tag])
|> fix_tag
end
def fix_tag(object), do: object
# content map usually only has one language so this will do for now.
def fix_content_map(%{"contentMap" => content_map} = object) when is_map(content_map) do
content_groups = Map.to_list(content_map)
if Enum.empty?(content_groups) do
object
else
{_, content} = Enum.at(content_groups, 0)
Map.put(object, "content", content)
end
end
def fix_content_map(object), do: object
defp fix_type(%{"type" => "Note", "inReplyTo" => reply_id, "name" => _} = object, options)
when is_binary(reply_id) do
options = Keyword.put(options, :fetch, true)
with %Object{data: %{"type" => "Question"}} <- Object.normalize(reply_id, options) do
Map.put(object, "type", "Answer")
else
_ -> object
end
end
defp fix_type(object, _options), do: object
# Reduce the object list to find the reported user.
defp get_reported(objects) do
Enum.reduce_while(objects, nil, fn ap_id, _ ->
with %User{} = user <- User.get_cached_by_ap_id(ap_id) do
{:halt, user}
else
_ -> {:cont, nil}
end
end)
end
def handle_incoming(data, options \\ []) do
data = normalise_addressing_public(data)
data =
if data["object"] != nil do
object = normalise_addressing_public(data["object"])
Map.put(data, "object", object)
else
data
end
handle_incoming_normalised(data, options)
end
defp handle_incoming_normalised(data, options)
# Flag objects are placed ahead of the ID check because Mastodon 2.8 and earlier send them
# with nil ID.
defp handle_incoming_normalised(
%{"type" => "Flag", "object" => objects, "actor" => actor} = data,
_options
) do
with context <- data["context"] || Utils.generate_context_id(),
content <- data["content"] || "",
%User{} = actor <- User.get_cached_by_ap_id(actor),
# Reduce the object list to find the reported user.
%User{} = account <- get_reported(objects),
# Remove the reported user from the object list.
statuses <- Enum.filter(objects, fn ap_id -> ap_id != account.ap_id end) do
%{
actor: actor,
context: context,
account: account,
statuses: statuses,
content: content,
additional: %{"cc" => [account.ap_id]}
}
|> ActivityPub.flag()
end
end
# disallow objects with bogus IDs
defp handle_incoming_normalised(%{"id" => nil}, _options), do: :error
defp handle_incoming_normalised(%{"id" => ""}, _options), do: :error
# length of https:// = 8, should validate better, but good enough for now.
defp handle_incoming_normalised(%{"id" => id}, _options)
when is_binary(id) and byte_size(id) < 8,
do: :error
# Rewrite misskey likes into EmojiReacts
defp handle_incoming_normalised(
%{
"type" => "Like",
"content" => reaction
} = data,
options
) do
if Pleroma.Emoji.is_unicode_emoji?(reaction) || Pleroma.Emoji.matches_shortcode?(reaction) do
data
|> Map.put("type", "EmojiReact")
|> handle_incoming(options)
else
data
|> Map.delete("content")
|> handle_incoming(options)
end
end
defp handle_incoming_normalised(
%{"type" => "Create", "object" => %{"type" => objtype, "id" => obj_id}} = data,
options
)
when objtype in ~w{Question Answer Audio Video Event Article Note Page} do
fetch_options = Keyword.put(options, :depth, (options[:depth] || 0) + 1)
object =
data["object"]
|> strip_internal_fields()
|> fix_type(fetch_options)
|> fix_in_reply_to(fetch_options)
|> fix_quote_url(fetch_options)
# Only change the Create's context if the object's context has been modified.
data =
if data["object"]["context"] != object["context"] do
data
|> Map.put("object", object)
|> Map.put("context", object["context"])
else
Map.put(data, "object", object)
end
options = Keyword.put(options, :local, false)
with {:ok, %User{}} <- ObjectValidator.fetch_actor(data),
nil <- Activity.get_create_by_object_ap_id(obj_id),
{:ok, activity, _} <- Pipeline.common_pipeline(data, options) do
{:ok, activity}
else
%Activity{} = activity -> {:ok, activity}
e -> e
end
end
defp handle_incoming_normalised(%{"type" => type} = data, _options)
when type in ~w{Like EmojiReact Announce Add Remove} do
with :ok <- ObjectValidator.fetch_actor_and_object(data),
{:ok, activity, _meta} <- Pipeline.common_pipeline(data, local: false) do
{:ok, activity}
else
e ->
{:error, e}
end
end
defp handle_incoming_normalised(
%{"type" => type} = data,
_options
)
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}
end
end
defp handle_incoming_normalised(
%{"type" => "Delete"} = data,
_options
) do
with {:ok, activity, _} <-
Pipeline.common_pipeline(data, local: false) do
{:ok, activity}
else
{:error, {:validate, _}} = e ->
# Check if we have a create activity for this
with {:ok, object_id} <- ObjectValidators.ObjectID.cast(data["object"]),
%Activity{data: %{"actor" => actor}} <-
Activity.create_by_object_ap_id(object_id) |> Repo.one(),
# We have one, insert a tombstone and retry
{:ok, tombstone_data, _} <- Builder.tombstone(actor, object_id),
{:ok, _tombstone} <- Object.create(tombstone_data) do
handle_incoming(data)
else
_ -> e
end
end
end
defp handle_incoming_normalised(
%{
"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
defp handle_incoming_normalised(
%{
"type" => "Undo",
"object" => %{"type" => type}
} = data,
_options
)
when type in ["Like", "EmojiReact", "Announce", "Block"] do
with {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do
{:ok, activity}
end
end
# For Undos that don't have the complete object attached, try to find it in our database.
defp handle_incoming_normalised(
%{
"type" => "Undo",
"object" => object
} = activity,
options
)
when is_binary(object) do
with %Activity{data: data} <- Activity.get_by_ap_id(object) do
activity
|> Map.put("object", data)
|> handle_incoming(options)
else
_e -> :error
end
end
defp handle_incoming_normalised(
%{
"type" => "Move",
"actor" => origin_actor,
"object" => origin_actor,
"target" => target_actor
},
_options
) do
with %User{} = origin_user <- User.get_cached_by_ap_id(origin_actor),
# Use a dramatically shortened maximum age before refresh here because it is reasonable
# for a user to
# 1. Add the alias to their new account and then
# 2. Press the button on their new account
# within a very short period of time and expect it to work
{:ok, %User{} = target_user} <- User.get_or_fetch_by_ap_id(target_actor, maximum_age: 5),
true <- origin_actor in target_user.also_known_as do
ActivityPub.move(origin_user, target_user, false)
else
_e -> :error
end
end
defp handle_incoming_normalised(_, _), do: :error
@spec get_obj_helper(String.t(), Keyword.t()) :: {:ok, Object.t()} | nil
def get_obj_helper(id, options \\ []) do
options = Keyword.put(options, :fetch, true)
case Object.normalize(id, options) do
%Object{} = object -> {:ok, object}
_ -> nil
end
end
@spec get_embedded_obj_helper(String.t() | Object.t(), User.t()) :: {:ok, Object.t()} | nil
def get_embedded_obj_helper(%{"attributedTo" => attributed_to, "id" => object_id} = data, %User{
ap_id: ap_id
})
when attributed_to == ap_id do
with {:ok, activity} <-
handle_incoming(%{
"type" => "Create",
"to" => data["to"],
"cc" => data["cc"],
"actor" => attributed_to,
"object" => data
}) do
{:ok, Object.normalize(activity, fetch: false)}
else
_ -> get_obj_helper(object_id)
end
end
def get_embedded_obj_helper(object_id, _) do
get_obj_helper(object_id)
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
def set_quote_url(%{"quoteUri" => quote} = object) when is_binary(quote) do
Map.put(object, "quoteUrl", quote)
end
def set_quote_url(obj), do: obj
@doc """
Serialized Mastodon-compatible `replies` collection containing _self-replies_.
Based on Mastodon's ActivityPub::NoteSerializer#replies.
"""
def set_replies(obj_data) do
replies_uris =
with limit when limit > 0 <-
Pleroma.Config.get([:activitypub, :note_replies_output_limit], 0),
%Object{} = object <- Object.get_cached_by_ap_id(obj_data["id"]) do
object
|> Object.self_replies()
|> select([o], fragment("?->>'id'", o.data))
|> limit(^limit)
|> Repo.all()
else
_ -> []
end
set_replies(obj_data, replies_uris)
end
defp set_replies(obj, []) do
obj
end
defp set_replies(obj, replies_uris) do
replies_collection = %{
"type" => "Collection",
"items" => replies_uris
}
Map.merge(obj, %{"replies" => replies_collection})
end
def replies(%{"replies" => %{"first" => %{"items" => items}}}) when not is_nil(items) do
items
end
def replies(%{"replies" => %{"items" => items}}) when not is_nil(items) do
items
end
def replies(_), do: []
# Prepares the object of an outgoing create activity.
def prepare_object(object) do
object
|> add_hashtags
|> add_mention_tags
|> add_emoji_tags
|> add_attributed_to
|> prepare_attachments
|> set_conversation
|> set_reply_to_uri
|> set_quote_url()
|> set_replies
|> strip_internal_fields
|> strip_internal_tags
|> set_type
|> maybe_process_history
end
defp maybe_process_history(%{"formerRepresentations" => %{"orderedItems" => history}} = object) do
processed_history =
Enum.map(
history,
fn
item when is_map(item) -> prepare_object(item)
item -> item
end
)
put_in(object, ["formerRepresentations", "orderedItems"], processed_history)
end
defp maybe_process_history(object) do
object
end
# @doc
# """
# internal -> Mastodon
# """
def prepare_outgoing(%{"type" => activity_type, "object" => object_id} = data)
when activity_type in ["Create"] do
object =
object_id
|> Object.normalize(fetch: false)
|> Map.get(:data)
|> prepare_object
data =
data
|> Map.put("object", object)
|> Map.merge(Utils.make_json_ld_header())
|> Map.delete("bcc")
{:ok, data}
end
def prepare_outgoing(%{"type" => "Update", "object" => %{"type" => objtype} = object} = data)
when objtype in Pleroma.Constants.updatable_object_types() do
object =
object
|> prepare_object
data =
data
|> Map.put("object", object)
|> Map.merge(Utils.make_json_ld_header())
|> Map.delete("bcc")
{:ok, data}
end
def prepare_outgoing(%{"type" => "Announce", "actor" => ap_id, "object" => object_id} = data) do
object =
object_id
|> Object.normalize(fetch: false)
data =
if Visibility.is_private?(object) && object.data["actor"] == ap_id do
data |> Map.put("object", object |> Map.get(:data) |> prepare_object)
else
data |> maybe_fix_object_url
end
data =
data
|> strip_internal_fields
|> Map.merge(Utils.make_json_ld_header())
|> Map.delete("bcc")
{: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(%{"object" => object} = data) when is_binary(object) do
with false <- String.starts_with?(object, "http"),
{:fetch, {:ok, relative_object}} <- {:fetch, get_obj_helper(object)},
%{data: %{"external_url" => external_url}} when not is_nil(external_url) <-
relative_object do
Map.put(data, "object", external_url)
else
{:fetch, _} ->
data
_ ->
data
end
end
def maybe_fix_object_url(data), do: data
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)
Map.put(object, "tag", tags)
end
# TODO These should be added on our side on insertion, it doesn't make much
# sense to regenerate these all the time
def add_mention_tags(object) do
to = object["to"] || []
cc = object["cc"] || []
mentioned = User.get_users_from_set(to ++ cc, local_only: false)
mentions = Enum.map(mentioned, &build_mention_tag/1)
tags = object["tag"] || []
Map.put(object, "tag", tags ++ mentions)
end
defp build_mention_tag(%{ap_id: ap_id, nickname: nickname} = _) do
%{"type" => "Mention", "href" => ap_id, "name" => "@#{nickname}"}
end
def take_emoji_tags(%User{emoji: emoji}) do
emoji
|> Map.to_list()
|> Enum.map(&build_emoji_tag/1)
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 = Enum.map(emoji, &build_emoji_tag/1)
Map.put(object, "tag", tags ++ out)
end
def add_emoji_tags(object), do: object
defp build_emoji_tag({name, url}) do
%{
"icon" => %{"url" => "#{URI.encode(url)}", "type" => "Image"},
"name" => ":" <> name <> ":",
"type" => "Emoji",
"updated" => "1970-01-01T00:00:00Z",
"id" => url
}
end
def set_conversation(object) do
Map.put(object, "conversation", object["context"])
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"]
Map.put(object, "attributedTo", attributed_to)
end
def prepare_attachments(object) do
attachments =
case Map.get(object, "attachment", []) do
[_ | _] = list -> list
_ -> []
end
attachments =
attachments
|> Enum.map(fn data ->
[%{"mediaType" => media_type, "href" => href} = url | _] = data["url"]
%{
"url" => href,
"mediaType" => media_type,
"name" => data["name"],
"type" => "Document"
}
|> Maps.put_if_present("width", url["width"])
|> Maps.put_if_present("height", url["height"])
|> Maps.put_if_present("blurhash", data["blurhash"])
end)
Map.put(object, "attachment", attachments)
end
def strip_internal_fields(object) do
Map.drop(object, Pleroma.Constants.object_internal_fields())
end
defp strip_internal_tags(%{"tag" => tags} = object) do
tags = Enum.filter(tags, fn x -> is_map(x) end)
Map.put(object, "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})
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([])
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),
{:ok, user} <- update_user(user, data) do
ActivityPub.enqueue_pin_fetches(user)
TransmogrifierWorker.enqueue("user_upgrade", %{"user_id" => user.id})
{:ok, user}
else
%User{} = user -> {:ok, user}
e -> e
end
end
defp update_user(user, data) do
user
|> User.remote_user_changeset(data)
|> User.update_and_set_cache()
end
def maybe_fix_user_url(%{"url" => url} = data) when is_map(url) do
Map.put(data, "url", url["href"])
end
def maybe_fix_user_url(data), do: data
def maybe_fix_user_object(data), do: maybe_fix_user_url(data)
end