akkoma/lib/pleroma/web/activity_pub/views/user_view.ex
Oneric 7622aa27ca Federate user profile background
Currently our own frontend doesn’t show backgrounds of other users, this
property is already publicly readable via REST API and likely was always
intended to be shown and federated.

Recently Sharkey added support for profile backgrounds and
immediately made them federate and be displayed to others.
We use the same AP field as Sharkey here which should make
it interoperable both ways out-of-the-box.

Ref.: 4e64397635
2024-02-16 16:35:51 +01:00

308 lines
9 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.UserView do
use Pleroma.Web, :view
alias Pleroma.Keys
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.User
alias Pleroma.Web.ActivityPub.ObjectView
alias Pleroma.Web.ActivityPub.Transmogrifier
alias Pleroma.Web.ActivityPub.Utils
require Pleroma.Web.ActivityPub.Transmogrifier
import Ecto.Query
def render("endpoints.json", %{user: %User{nickname: nil, local: true} = _user}) do
%{"sharedInbox" => url(~p"/inbox")}
end
def render("endpoints.json", %{user: %User{local: true} = _user}) do
%{
"oauthAuthorizationEndpoint" => url(~p"/oauth/authorize"),
"oauthRegistrationEndpoint" => url(~p"/api/v1/apps"),
"oauthTokenEndpoint" => url(~p"/oauth/token"),
"sharedInbox" => url(~p"/inbox"),
"uploadMedia" => url(~p"/api/ap/upload_media")
}
end
def render("endpoints.json", _), do: %{}
def render("service.json", %{user: user}) do
{:ok, _, public_key} = Keys.keys_from_pem(user.keys)
public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
public_key = :public_key.pem_encode([public_key])
endpoints = render("endpoints.json", %{user: user})
%{
"id" => user.ap_id,
"type" => "Application",
"following" => "#{user.ap_id}/following",
"followers" => "#{user.ap_id}/followers",
"inbox" => "#{user.ap_id}/inbox",
"outbox" => "#{user.ap_id}/outbox",
"name" => "Pleroma",
"summary" =>
"An internal service actor for this Pleroma instance. No user-serviceable parts inside.",
"url" => user.ap_id,
"manuallyApprovesFollowers" => false,
"publicKey" => %{
"id" => "#{user.ap_id}#main-key",
"owner" => user.ap_id,
"publicKeyPem" => public_key
},
"endpoints" => endpoints,
"invisible" => User.invisible?(user)
}
|> Map.merge(Utils.make_json_ld_header())
end
# the instance itself is not a Person, but instead an Application
def render("user.json", %{user: %User{nickname: nil} = user}),
do: render("service.json", %{user: user})
def render("user.json", %{user: %User{nickname: "internal." <> _} = user}),
do: render("service.json", %{user: user}) |> Map.put("preferredUsername", user.nickname)
def render("user.json", %{user: user}) do
{:ok, _, public_key} = Keys.keys_from_pem(user.keys)
public_key = :public_key.pem_entry_encode(:SubjectPublicKeyInfo, public_key)
public_key = :public_key.pem_encode([public_key])
user = User.sanitize_html(user)
endpoints = render("endpoints.json", %{user: user})
emoji_tags = Transmogrifier.take_emoji_tags(user)
fields = Enum.map(user.fields, &Map.put(&1, "type", "PropertyValue"))
capabilities = %{}
%{
"id" => user.ap_id,
"type" => user.actor_type,
"following" => "#{user.ap_id}/following",
"followers" => "#{user.ap_id}/followers",
"inbox" => "#{user.ap_id}/inbox",
"outbox" => "#{user.ap_id}/outbox",
"featured" => "#{user.ap_id}/collections/featured",
"preferredUsername" => user.nickname,
"name" => user.name,
"summary" => user.bio,
"url" => user.ap_id,
"manuallyApprovesFollowers" => user.is_locked,
"publicKey" => %{
"id" => "#{user.ap_id}#main-key",
"owner" => user.ap_id,
"publicKeyPem" => public_key
},
"endpoints" => endpoints,
"attachment" => fields,
"tag" => emoji_tags,
# Note: key name is indeed "discoverable" (not an error)
"discoverable" => user.is_discoverable,
"capabilities" => capabilities,
"alsoKnownAs" => user.also_known_as
}
|> Map.merge(maybe_make_image(&User.avatar_url/2, "icon", user))
|> Map.merge(maybe_make_image(&User.banner_url/2, "image", user))
# Yes, the key is named ...Url eventhough it is a whole 'Image' object
|> Map.merge(maybe_insert_image("backgroundUrl", User.background_url(user)))
|> Map.merge(Utils.make_json_ld_header())
end
def render("following.json", %{user: user, page: page} = opts) do
showing_items = (opts[:for] && opts[:for] == user) || !user.hide_follows
showing_count = showing_items || !user.hide_follows_count
query = User.get_friends_query(user)
query = from(user in query, select: [:ap_id])
following = Repo.all(query)
total =
if showing_count do
length(following)
else
0
end
collection(following, "#{user.ap_id}/following", page, showing_items, total)
|> Map.merge(Utils.make_json_ld_header())
end
def render("following.json", %{user: user} = opts) do
showing_items = (opts[:for] && opts[:for] == user) || !user.hide_follows
showing_count = showing_items || !user.hide_follows_count
query = User.get_friends_query(user)
query = from(user in query, select: [:ap_id])
following = Repo.all(query)
total =
if showing_count do
length(following)
else
0
end
%{
"id" => "#{user.ap_id}/following",
"type" => "OrderedCollection",
"totalItems" => total,
"first" =>
if showing_items do
collection(following, "#{user.ap_id}/following", 1, !user.hide_follows)
else
"#{user.ap_id}/following?page=1"
end
}
|> Map.merge(Utils.make_json_ld_header())
end
def render("followers.json", %{user: user, page: page} = opts) do
showing_items = (opts[:for] && opts[:for] == user) || !user.hide_followers
showing_count = showing_items || !user.hide_followers_count
query = User.get_followers_query(user)
query = from(user in query, select: [:ap_id])
followers = Repo.all(query)
total =
if showing_count do
length(followers)
else
0
end
collection(followers, "#{user.ap_id}/followers", page, showing_items, total)
|> Map.merge(Utils.make_json_ld_header())
end
def render("followers.json", %{user: user} = opts) do
showing_items = (opts[:for] && opts[:for] == user) || !user.hide_followers
showing_count = showing_items || !user.hide_followers_count
query = User.get_followers_query(user)
query = from(user in query, select: [:ap_id])
followers = Repo.all(query)
total =
if showing_count do
length(followers)
else
0
end
%{
"id" => "#{user.ap_id}/followers",
"type" => "OrderedCollection",
"first" =>
if showing_items do
collection(followers, "#{user.ap_id}/followers", 1, showing_items, total)
else
"#{user.ap_id}/followers?page=1"
end
}
|> maybe_put_total_items(showing_count, total)
|> Map.merge(Utils.make_json_ld_header())
end
def render("activity_collection.json", %{iri: iri}) do
%{
"id" => iri,
"type" => "OrderedCollection",
"first" => "#{iri}?page=true"
}
|> Map.merge(Utils.make_json_ld_header())
end
def render("activity_collection_page.json", %{
activities: activities,
iri: iri,
pagination: pagination
}) do
collection =
Enum.map(activities, fn activity ->
{:ok, data} = Transmogrifier.prepare_outgoing(activity.data)
data
end)
%{
"type" => "OrderedCollectionPage",
"partOf" => iri,
"orderedItems" => collection
}
|> Map.merge(Utils.make_json_ld_header())
|> Map.merge(pagination)
end
def render("featured.json", %{
user: %{featured_address: featured_address, pinned_objects: pinned_objects}
}) do
objects =
pinned_objects
|> Enum.sort_by(fn {_, pinned_at} -> pinned_at end, &>=/2)
|> Enum.map(fn {id, _} ->
ObjectView.render("object.json", %{object: Object.get_cached_by_ap_id(id)})
end)
%{
"id" => featured_address,
"type" => "OrderedCollection",
"orderedItems" => objects,
"totalItems" => length(objects)
}
|> Map.merge(Utils.make_json_ld_header())
end
defp maybe_put_total_items(map, false, _total), do: map
defp maybe_put_total_items(map, true, total) do
Map.put(map, "totalItems", total)
end
def collection(collection, iri, page, show_items \\ true, total \\ nil) do
offset = (page - 1) * 10
items = Enum.slice(collection, offset, 10)
items = Enum.map(items, fn user -> user.ap_id end)
total = total || length(collection)
map = %{
"id" => "#{iri}?page=#{page}",
"type" => "OrderedCollectionPage",
"partOf" => iri,
"totalItems" => total,
"orderedItems" => if(show_items, do: items, else: [])
}
if offset < total do
Map.put(map, "next", "#{iri}?page=#{page + 1}")
else
map
end
end
defp maybe_make_image(func, key, user) do
image = func.(user, no_default: true)
maybe_insert_image(key, image)
end
defp maybe_insert_image(key, image) do
if image do
%{
key => %{
"type" => "Image",
"url" => image
}
}
else
%{}
end
end
end