forked from AkkomaGang/akkoma
139 lines
3.5 KiB
Elixir
139 lines
3.5 KiB
Elixir
defmodule Pleroma.Web.OStatus do
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import Ecto.Query
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require Logger
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alias Pleroma.{Repo, User, Web}
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alias Pleroma.Web.ActivityPub.ActivityPub
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def feed_path(user) do
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"#{user.ap_id}/feed.atom"
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end
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def pubsub_path(user) do
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"#{Web.base_url}/push/hub/#{user.nickname}"
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end
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def salmon_path(user) do
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"#{user.ap_id}/salmon"
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end
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def handle_incoming(xml_string) do
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{doc, _rest} = :xmerl_scan.string(to_charlist(xml_string))
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{:xmlObj, :string, object_type } = :xmerl_xpath.string('string(/entry/activity:object-type[1])', doc)
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case object_type do
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'http://activitystrea.ms/schema/1.0/note' ->
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handle_note(doc)
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_ ->
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Logger.error("Couldn't parse incoming document")
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end
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end
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# TODO
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# wire up replies
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def handle_note(doc) do
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content_html = string_from_xpath("/entry/content[1]", doc)
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[author] = :xmerl_xpath.string('/entry/author[1]', doc)
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{:ok, actor} = find_or_make_user(author)
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context = string_from_xpath("/entry/ostatus:conversation[1]", doc) |> String.trim
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context = if String.length(context) > 0 do
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context
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else
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ActivityPub.generate_context_id
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end
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to = [
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"https://www.w3.org/ns/activitystreams#Public"
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]
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mentions = :xmerl_xpath.string('/entry/link[@rel="mentioned" and @ostatus:object-type="http://activitystrea.ms/schema/1.0/person"]', doc)
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|> Enum.map(fn(person) -> string_from_xpath("@href", person) end)
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to = to ++ mentions
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date = string_from_xpath("/entry/published", doc)
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object = %{
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"type" => "Note",
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"to" => to,
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"content" => content_html,
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"published" => date,
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"context" => context,
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"actor" => actor.ap_id
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}
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ActivityPub.create(to, actor, context, object, %{}, date)
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end
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def find_or_make_user(author_doc) do
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{:xmlObj, :string, uri } = :xmerl_xpath.string('string(/author[1]/uri)', author_doc)
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query = from user in User,
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where: user.local == false and fragment("? @> ?", user.info, ^%{ostatus_uri: to_string(uri)})
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user = Repo.one(query)
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if is_nil(user) do
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make_user(author_doc)
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else
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{:ok, user}
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end
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end
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defp string_from_xpath(xpath, doc) do
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{:xmlObj, :string, res} = :xmerl_xpath.string('string(#{xpath})', doc)
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res = res
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|> to_string
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|> String.trim
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if res == "", do: nil, else: res
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end
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def make_user(author_doc) do
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author = string_from_xpath("/author[1]/uri", author_doc)
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name = string_from_xpath("/author[1]/name", author_doc)
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preferredUsername = string_from_xpath("/author[1]/poco:preferredUsername", author_doc)
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displayName = string_from_xpath("/author[1]/poco:displayName", author_doc)
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avatar = make_avatar_object(author_doc)
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data = %{
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local: false,
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name: preferredUsername || name,
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nickname: displayName || name,
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ap_id: author,
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info: %{
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"ostatus_uri" => author,
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"host" => URI.parse(author).host,
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"system" => "ostatus"
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},
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avatar: avatar
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}
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Repo.insert(Ecto.Changeset.change(%User{}, data))
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end
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# TODO: Just takes the first one for now.
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defp make_avatar_object(author_doc) do
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href = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@href", author_doc)
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type = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@type", author_doc)
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if href do
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%{
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"type" => "Image",
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"url" =>
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[%{
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"type" => "Link",
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"mediaType" => type,
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"href" => href
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}]
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}
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else
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nil
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end
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end
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end
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