defmodule Pleroma.Web.OStatus do import Ecto.Query require Logger alias Pleroma.{Repo, User, Web} alias Pleroma.Web.ActivityPub.ActivityPub 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, _rest} = :xmerl_scan.string(to_charlist(xml_string)) {:xmlObj, :string, object_type } = :xmerl_xpath.string('string(/entry/activity:object-type[1])', doc) case object_type do 'http://activitystrea.ms/schema/1.0/note' -> handle_note(doc) _ -> Logger.error("Couldn't parse incoming document") end end # TODO # wire up replies def handle_note(doc) do content_html = string_from_xpath("/entry/content[1]", doc) [author] = :xmerl_xpath.string('/entry/author[1]', doc) {:ok, actor} = find_or_make_user(author) context = string_from_xpath("/entry/ostatus:conversation[1]", doc) |> 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"]', doc) |> Enum.map(fn(person) -> string_from_xpath("@href", person) end) to = to ++ mentions date = string_from_xpath("/entry/published", doc) object = %{ "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]/@href", doc) object = if inReplyTo do Map.put(object, "inReplyTo", inReplyTo) else object end ActivityPub.create(to, actor, context, object, %{}, date) end def find_or_make_user(author_doc) do {:xmlObj, :string, uri } = :xmerl_xpath.string('string(/author[1]/uri)', author_doc) query = from user in User, where: user.local == false and fragment("? @> ?", user.info, ^%{ostatus_uri: to_string(uri)}) user = Repo.one(query) if is_nil(user) do make_user(author_doc) else {:ok, user} end end defp string_from_xpath(xpath, doc) do {:xmlObj, :string, res} = :xmerl_xpath.string('string(#{xpath})', doc) res = res |> to_string |> String.trim if res == "", do: nil, else: res end def make_user(author_doc) do author = string_from_xpath("/author[1]/uri", author_doc) name = string_from_xpath("/author[1]/name", author_doc) preferredUsername = string_from_xpath("/author[1]/poco:preferredUsername", author_doc) displayName = string_from_xpath("/author[1]/poco:displayName", author_doc) avatar = make_avatar_object(author_doc) data = %{ local: false, name: preferredUsername || name, nickname: displayName || name, ap_id: author, info: %{ "ostatus_uri" => author, "host" => URI.parse(author).host, "system" => "ostatus" }, avatar: avatar } Repo.insert(Ecto.Changeset.change(%User{}, data)) end # TODO: Just takes the first one for now. defp make_avatar_object(author_doc) do href = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@href", author_doc) type = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@type", author_doc) if href do %{ "type" => "Image", "url" => [%{ "type" => "Link", "mediaType" => type, "href" => href }] } else nil end end end