X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Fostatus%2Fostatus.ex;h=a3155b79dd07db2ca586f7800e1f7aa75f8a57f7;hb=71bb90073b773bad1e4783bb574902f7dc0b4976;hp=d21b9078f4bc81799c7aee86e648de56171ab177;hpb=a3b9741a627ab0ab0e2ec0dc13c1ed81283cc50a;p=akkoma
diff --git a/lib/pleroma/web/ostatus/ostatus.ex b/lib/pleroma/web/ostatus/ostatus.ex
index d21b9078f..a3155b79d 100644
--- a/lib/pleroma/web/ostatus/ostatus.ex
+++ b/lib/pleroma/web/ostatus/ostatus.ex
@@ -1,14 +1,392 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Web.OStatus do
- alias Pleroma.Web
+ @httpoison Application.get_env(:pleroma, :httpoison)
+
+ import Ecto.Query
+ import Pleroma.Web.XML
+ require Logger
+
+ alias Pleroma.{Repo, User, Web, Object, Activity}
+ alias Pleroma.Web.ActivityPub.ActivityPub
+ alias Pleroma.Web.{WebFinger, Websub}
+ alias Pleroma.Web.OStatus.{FollowHandler, UnfollowHandler, NoteHandler, DeleteHandler}
+ alias Pleroma.Web.ActivityPub.Transmogrifier
+
+ def is_representable?(%Activity{data: data}) do
+ object = Object.normalize(data["object"])
+
+ cond do
+ is_nil(object) ->
+ false
+
+ object.data["type"] == "Note" ->
+ true
+
+ true ->
+ false
+ end
+ end
def feed_path(user) do
"#{user.ap_id}/feed.atom"
end
def pubsub_path(user) do
- "#{Web.base_url}/push/hub/#{user.nickname}"
+ "#{Web.base_url()}/push/hub/#{user.nickname}"
+ end
+
+ def salmon_path(user) do
+ "#{user.ap_id}/salmon"
+ end
+
+ def remote_follow_path do
+ "#{Web.base_url()}/ostatus_subscribe?acct={uri}"
+ end
+
+ def handle_incoming(xml_string) do
+ with doc when doc != :error <- parse_document(xml_string) do
+ 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)
+
+ {:xmlObj, :string, verb} = :xmerl_xpath.string('string(/entry/activity:verb[1])', entry)
+ Logger.debug("Handling #{verb}")
+
+ try do
+ case verb do
+ 'http://activitystrea.ms/schema/1.0/delete' ->
+ with {:ok, activity} <- DeleteHandler.handle_delete(entry, doc), do: activity
+
+ 'http://activitystrea.ms/schema/1.0/follow' ->
+ with {:ok, activity} <- FollowHandler.handle(entry, doc), do: activity
+
+ 'http://activitystrea.ms/schema/1.0/unfollow' ->
+ with {:ok, activity} <- UnfollowHandler.handle(entry, doc), do: activity
+
+ 'http://activitystrea.ms/schema/1.0/share' ->
+ with {:ok, activity, retweeted_activity} <- handle_share(entry, doc),
+ do: [activity, retweeted_activity]
+
+ 'http://activitystrea.ms/schema/1.0/favorite' ->
+ with {:ok, activity, favorited_activity} <- handle_favorite(entry, doc),
+ do: [activity, favorited_activity]
+
+ _ ->
+ case object_type do
+ 'http://activitystrea.ms/schema/1.0/note' ->
+ with {:ok, activity} <- NoteHandler.handle_note(entry, doc), do: activity
+
+ 'http://activitystrea.ms/schema/1.0/comment' ->
+ with {:ok, activity} <- NoteHandler.handle_note(entry, doc), do: activity
+
+ _ ->
+ Logger.error("Couldn't parse incoming document")
+ nil
+ end
+ end
+ rescue
+ e ->
+ Logger.error("Error occured while handling activity")
+ Logger.error(xml_string)
+ Logger.error(inspect(e))
+ nil
+ end
+ end)
+ |> Enum.filter(& &1)
+
+ {:ok, activities}
+ else
+ _e -> {:error, []}
+ end
+ end
+
+ def make_share(entry, doc, retweeted_activity) do
+ with {:ok, actor} <- find_make_or_update_user(doc),
+ %Object{} = object <- Object.normalize(retweeted_activity.data["object"]),
+ id when not is_nil(id) <- string_from_xpath("/entry/id", entry),
+ {:ok, activity, _object} = ActivityPub.announce(actor, object, id, false) do
+ {:ok, activity}
+ end
+ end
+
+ def handle_share(entry, doc) do
+ with {:ok, retweeted_activity} <- get_or_build_object(entry),
+ {:ok, activity} <- make_share(entry, doc, retweeted_activity) do
+ {:ok, activity, retweeted_activity}
+ else
+ e -> {:error, e}
+ end
+ end
+
+ def make_favorite(entry, doc, favorited_activity) do
+ with {:ok, actor} <- find_make_or_update_user(doc),
+ %Object{} = object <- Object.normalize(favorited_activity.data["object"]),
+ id when not is_nil(id) <- string_from_xpath("/entry/id", entry),
+ {:ok, activity, _object} = ActivityPub.like(actor, object, id, false) do
+ {:ok, activity}
+ end
+ end
+
+ def get_or_build_object(entry) do
+ with {:ok, activity} <- get_or_try_fetching(entry) do
+ {:ok, activity}
+ else
+ _e ->
+ with [object] <- :xmerl_xpath.string('/entry/activity:object', entry) do
+ NoteHandler.handle_note(object, object)
+ end
+ end
+ end
+
+ def get_or_try_fetching(entry) do
+ Logger.debug("Trying to get entry from db")
+
+ with id when not is_nil(id) <- string_from_xpath("//activity:object[1]/id", entry),
+ %Activity{} = activity <- Activity.get_create_by_object_ap_id(id) do
+ {:ok, activity}
+ else
+ _ ->
+ Logger.debug("Couldn't get, will try to fetch")
+
+ with href when not is_nil(href) <-
+ string_from_xpath("//activity:object[1]/link[@type=\"text/html\"]/@href", entry),
+ {:ok, [favorited_activity]} <- fetch_activity_from_url(href) do
+ {:ok, favorited_activity}
+ else
+ e -> Logger.debug("Couldn't find href: #{inspect(e)}")
+ end
+ end
+ end
+
+ def handle_favorite(entry, doc) do
+ with {:ok, favorited_activity} <- get_or_try_fetching(entry),
+ {:ok, activity} <- make_favorite(entry, doc, favorited_activity) do
+ {:ok, activity, favorited_activity}
+ else
+ e -> {:error, e}
+ end
+ end
+
+ def get_attachments(entry) do
+ :xmerl_xpath.string('/entry/link[@rel="enclosure"]', entry)
+ |> Enum.map(fn enclosure ->
+ with href when not is_nil(href) <- string_from_xpath("/link/@href", enclosure),
+ type when not is_nil(type) <- string_from_xpath("/link/@type", enclosure) do
+ %{
+ "type" => "Attachment",
+ "url" => [
+ %{
+ "type" => "Link",
+ "mediaType" => type,
+ "href" => href
+ }
+ ]
+ }
+ end
+ end)
+ |> Enum.filter(& &1)
+ end
+
+ @doc """
+ Gets the content from a an entry.
+ """
+ def get_content(entry) do
+ string_from_xpath("//content", entry)
+ end
+
+ @doc """
+ Get the cw that mastodon uses.
+ """
+ def get_cw(entry) do
+ with cw when not is_nil(cw) <- string_from_xpath("/*/summary", entry) do
+ cw
+ else
+ _e -> nil
+ end
+ end
+
+ def get_tags(entry) do
+ :xmerl_xpath.string('//category', entry)
+ |> Enum.map(fn category -> string_from_xpath("/category/@term", category) end)
+ |> Enum.filter(& &1)
+ |> Enum.map(&String.downcase/1)
+ end
+
+ def maybe_update(doc, user) do
+ if "true" == string_from_xpath("//author[1]/ap_enabled", doc) do
+ Transmogrifier.upgrade_user_from_ap_id(user.ap_id)
+ else
+ maybe_update_ostatus(doc, user)
+ end
+ end
+
+ def maybe_update_ostatus(doc, user) do
+ old_data = %{
+ avatar: user.avatar,
+ bio: user.bio,
+ name: user.name
+ }
+
+ with false <- user.local,
+ avatar <- make_avatar_object(doc),
+ bio <- string_from_xpath("//author[1]/summary", doc),
+ name <- string_from_xpath("//author[1]/poco:displayName", doc),
+ new_data <- %{
+ avatar: avatar || old_data.avatar,
+ name: name || old_data.name,
+ bio: bio || old_data.bio
+ },
+ false <- new_data == old_data do
+ change = Ecto.Changeset.change(user, new_data)
+ User.update_and_set_cache(change)
+ else
+ _ ->
+ {:ok, user}
+ end
+ end
+
+ def find_make_or_update_user(doc) do
+ uri = string_from_xpath("//author/uri[1]", doc)
+
+ with {:ok, user} <- find_or_make_user(uri) do
+ maybe_update(doc, user)
+ end
+ end
+
+ def find_or_make_user(uri) do
+ query = from(user in User, where: user.ap_id == ^uri)
+
+ user = Repo.one(query)
+
+ if is_nil(user) do
+ make_user(uri)
+ else
+ {:ok, user}
+ end
+ end
+
+ def make_user(uri, update \\ false) do
+ with {:ok, info} <- gather_user_info(uri) do
+ data = %{
+ name: info["name"],
+ nickname: info["nickname"] <> "@" <> info["host"],
+ ap_id: info["uri"],
+ info: info,
+ avatar: info["avatar"],
+ bio: info["bio"]
+ }
+
+ with false <- update,
+ %User{} = user <- User.get_by_ap_id(data.ap_id) do
+ {:ok, user}
+ else
+ _e -> User.insert_or_update_user(data)
+ end
+ end
+ end
+
+ # TODO: Just takes the first one for now.
+ def make_avatar_object(author_doc, rel \\ "avatar") do
+ href = string_from_xpath("//author[1]/link[@rel=\"#{rel}\"]/@href", author_doc)
+ type = string_from_xpath("//author[1]/link[@rel=\"#{rel}\"]/@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(fn -> "Couldn't gather info for #{username}" end)
+ {:error, e}
+ end
+ end
+
+ # Regex-based 'parsing' so we don't have to pull in a full html parser
+ # It's a hack anyway. Maybe revisit this in the future
+ @mastodon_regex ~r//
+ @gs_regex ~r//
+ @gs_classic_regex ~r//
+ def get_atom_url(body) do
+ cond do
+ Regex.match?(@mastodon_regex, body) ->
+ [[_, match]] = Regex.scan(@mastodon_regex, body)
+ {:ok, match}
+
+ Regex.match?(@gs_regex, body) ->
+ [[_, match]] = Regex.scan(@gs_regex, body)
+ {:ok, match}
+
+ Regex.match?(@gs_classic_regex, body) ->
+ [[_, match]] = Regex.scan(@gs_classic_regex, body)
+ {:ok, match}
+
+ true ->
+ Logger.debug(fn -> "Couldn't find Atom link in #{inspect(body)}" end)
+ {:error, "Couldn't find the Atom link"}
+ end
+ end
+
+ def fetch_activity_from_atom_url(url) do
+ with true <- String.starts_with?(url, "http"),
+ {:ok, %{body: body, status: code}} when code in 200..299 <-
+ @httpoison.get(
+ url,
+ [{:Accept, "application/atom+xml"}]
+ ) do
+ Logger.debug("Got document from #{url}, handling...")
+ handle_incoming(body)
+ else
+ e ->
+ Logger.debug("Couldn't get #{url}: #{inspect(e)}")
+ e
+ end
+ end
+
+ def fetch_activity_from_html_url(url) do
+ Logger.debug("Trying to fetch #{url}")
+
+ with true <- String.starts_with?(url, "http"),
+ {:ok, %{body: body}} <- @httpoison.get(url, []),
+ {:ok, atom_url} <- get_atom_url(body) do
+ fetch_activity_from_atom_url(atom_url)
+ else
+ e ->
+ Logger.debug("Couldn't get #{url}: #{inspect(e)}")
+ e
+ end
end
- def user_path(user) do
+ def fetch_activity_from_url(url) do
+ with {:ok, [_ | _] = activities} <- fetch_activity_from_atom_url(url) do
+ {:ok, activities}
+ else
+ _e -> fetch_activity_from_html_url(url)
+ end
+ rescue
+ e ->
+ Logger.debug("Couldn't get #{url}: #{inspect(e)}")
+ {:error, "Couldn't get #{url}: #{inspect(e)}"}
end
end