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# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 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.Repo
alias Pleroma.User
alias Pleroma.Web.ActivityPub.Transmogrifier
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.Endpoint
alias Pleroma.Web.Router.Helpers
import Ecto.Query
def render("endpoints.json", %{user: %User{nickname: nil, local: true} = _user}) do
%{"sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox)}
end
def render("endpoints.json", %{user: %User{local: true} = _user}) do
%{
"oauthAuthorizationEndpoint" => Helpers.o_auth_url(Endpoint, :authorize),
"oauthRegistrationEndpoint" => Helpers.app_url(Endpoint, :create),
"oauthTokenEndpoint" => Helpers.o_auth_url(Endpoint, :token_exchange),
"sharedInbox" => Helpers.activity_pub_url(Endpoint, :inbox),
"uploadMedia" => Helpers.activity_pub_url(Endpoint, :upload_media)
}
end
def render("endpoints.json", _), do: %{}
def render("service.json", %{user: user}) do
{:ok, user} = User.ensure_keys_present(user)
{: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",
"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, user} = User.ensure_keys_present(user)
{: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 =
user
|> User.fields()
|> Enum.map(&Map.put(&1, "type", "PropertyValue"))
%{
"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",
"preferredUsername" => user.nickname,
"name" => user.name,
"summary" => user.bio,
"url" => user.ap_id,
"manuallyApprovesFollowers" => user.locked,
"publicKey" => %{
"id" => "#{user.ap_id}#main-key",
"owner" => user.ap_id,
"publicKeyPem" => public_key
},
"endpoints" => endpoints,
"attachment" => fields,
"tag" => (user.source_data["tag"] || []) ++ emoji_tags,
"discoverable" => user.discoverable
}
|> Map.merge(maybe_make_image(&User.avatar_url/2, "icon", user))
|> Map.merge(maybe_make_image(&User.banner_url/2, "image", 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}) do
# this is sorted chronologically, so first activity is the newest (max)
{max_id, min_id, collection} =
if length(activities) > 0 do
{
Enum.at(activities, 0).id,
Enum.at(Enum.reverse(activities), 0).id,
Enum.map(activities, fn act ->
{:ok, data} = Transmogrifier.prepare_outgoing(act.data)
data
end)
}
else
{
0,
0,
[]
}
end
%{
"id" => "#{iri}?max_id=#{max_id}&page=true",
"type" => "OrderedCollectionPage",
"partOf" => iri,
"orderedItems" => collection,
"next" => "#{iri}?max_id=#{min_id}&page=true"
}
|> 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
if image = func.(user, no_default: true) do
%{
key => %{
"type" => "Image",
"url" => image
}
}
else
%{}
end
end
end
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