forked from YokaiRick/akkoma
151 lines
4 KiB
Elixir
151 lines
4 KiB
Elixir
defmodule Pleroma.Web.OStatus do
|
|
import Ecto.Query
|
|
import Pleroma.Web.XML
|
|
require Logger
|
|
|
|
alias Pleroma.{Repo, User, Web, Object}
|
|
alias Pleroma.Web.ActivityPub.ActivityPub
|
|
alias Pleroma.Web.{WebFinger, Websub}
|
|
|
|
def feed_path(user) do
|
|
"#{user.ap_id}/feed.atom"
|
|
end
|
|
|
|
def pubsub_path(user) do
|
|
"#{Web.base_url}/push/hub/#{user.nickname}"
|
|
end
|
|
|
|
def salmon_path(user) do
|
|
"#{user.ap_id}/salmon"
|
|
end
|
|
|
|
def handle_incoming(xml_string) do
|
|
doc = parse_document(xml_string)
|
|
entries = :xmerl_xpath.string('//entry', doc)
|
|
|
|
activities = Enum.map(entries, fn (entry) ->
|
|
{:xmlObj, :string, object_type } = :xmerl_xpath.string('string(/entry/activity:object-type[1])', entry)
|
|
|
|
case object_type do
|
|
'http://activitystrea.ms/schema/1.0/note' ->
|
|
with {:ok, activity} <- handle_note(entry, doc), do: activity
|
|
'http://activitystrea.ms/schema/1.0/comment' ->
|
|
with {:ok, activity} <- handle_note(entry, doc), do: activity
|
|
_ ->
|
|
Logger.error("Couldn't parse incoming document")
|
|
nil
|
|
end
|
|
end)
|
|
{:ok, activities}
|
|
end
|
|
|
|
def handle_note(entry, doc \\ nil) do
|
|
content_html = string_from_xpath("/entry/content[1]", entry)
|
|
|
|
uri = string_from_xpath("/entry/author/uri[1]", entry) || string_from_xpath("/feed/author/uri[1]", doc)
|
|
{:ok, actor} = find_or_make_user(uri)
|
|
|
|
context = (string_from_xpath("/entry/ostatus:conversation[1]", entry) || "") |> String.trim
|
|
context = if String.length(context) > 0 do
|
|
context
|
|
else
|
|
ActivityPub.generate_context_id
|
|
end
|
|
|
|
to = [
|
|
"https://www.w3.org/ns/activitystreams#Public"
|
|
]
|
|
|
|
mentions = :xmerl_xpath.string('/entry/link[@rel="mentioned" and @ostatus:object-type="http://activitystrea.ms/schema/1.0/person"]', entry)
|
|
|> Enum.map(fn(person) -> string_from_xpath("@href", person) end)
|
|
|
|
to = to ++ mentions
|
|
|
|
date = string_from_xpath("/entry/published", entry)
|
|
id = string_from_xpath("/entry/id", entry)
|
|
|
|
object = %{
|
|
"id" => id,
|
|
"type" => "Note",
|
|
"to" => to,
|
|
"content" => content_html,
|
|
"published" => date,
|
|
"context" => context,
|
|
"actor" => actor.ap_id
|
|
}
|
|
|
|
inReplyTo = string_from_xpath("/entry/thr:in-reply-to[1]/@ref", entry)
|
|
|
|
object = if inReplyTo do
|
|
Map.put(object, "inReplyTo", inReplyTo)
|
|
else
|
|
object
|
|
end
|
|
|
|
# TODO: Bail out sooner and use transaction.
|
|
if Object.get_by_ap_id(id) do
|
|
{:error, "duplicate activity"}
|
|
else
|
|
ActivityPub.create(to, actor, context, object, %{}, date, false)
|
|
end
|
|
end
|
|
|
|
def find_or_make_user(uri) do
|
|
query = from user in User,
|
|
where: user.local == false and fragment("? @> ?", user.info, ^%{uri: uri})
|
|
|
|
user = Repo.one(query)
|
|
|
|
if is_nil(user) do
|
|
make_user(uri)
|
|
else
|
|
{:ok, user}
|
|
end
|
|
end
|
|
|
|
def make_user(uri) do
|
|
with {:ok, info} <- gather_user_info(uri) do
|
|
data = %{
|
|
local: false,
|
|
name: info.name,
|
|
nickname: info.nickname <> "@" <> info.host,
|
|
ap_id: info.uri,
|
|
info: info,
|
|
avatar: info.avatar
|
|
}
|
|
# TODO: Make remote user changeset
|
|
# SHould enforce fqn nickname
|
|
Repo.insert(Ecto.Changeset.change(%User{}, data))
|
|
end
|
|
end
|
|
|
|
# TODO: Just takes the first one for now.
|
|
def make_avatar_object(author_doc) do
|
|
href = string_from_xpath("/feed/author[1]/link[@rel=\"avatar\"]/@href", author_doc)
|
|
type = string_from_xpath("/feed/author[1]/link[@rel=\"avatar\"]/@type", author_doc)
|
|
|
|
if href do
|
|
%{
|
|
"type" => "Image",
|
|
"url" =>
|
|
[%{
|
|
"type" => "Link",
|
|
"mediaType" => type,
|
|
"href" => href
|
|
}]
|
|
}
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
|
|
def gather_user_info(username) do
|
|
with {:ok, webfinger_data} <- WebFinger.finger(username),
|
|
{:ok, feed_data} <- Websub.gather_feed_data(webfinger_data.topic) do
|
|
{:ok, Map.merge(webfinger_data, feed_data) |> Map.put(:fqn, username)}
|
|
else e ->
|
|
Logger.debug("Couldn't gather info for #{username}")
|
|
{:error, e}
|
|
end
|
|
end
|
|
end
|