299 lines
		
	
	
	
		
			11 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			299 lines
		
	
	
	
		
			11 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
defmodule Pleroma.Web.OStatus.ActivityRepresenter do
 | 
						|
  alias Pleroma.{Activity, User, Object}
 | 
						|
  alias Pleroma.Web.OStatus.UserRepresenter
 | 
						|
  alias Pleroma.Formatter
 | 
						|
  require Logger
 | 
						|
 | 
						|
  defp get_href(id) do
 | 
						|
    with %Object{data: %{"external_url" => external_url}} <- Object.get_cached_by_ap_id(id) do
 | 
						|
      external_url
 | 
						|
    else
 | 
						|
      _e -> id
 | 
						|
    end
 | 
						|
  end
 | 
						|
 | 
						|
  defp get_in_reply_to(%{"object" => %{"inReplyTo" => in_reply_to}}) do
 | 
						|
    [
 | 
						|
      {:"thr:in-reply-to",
 | 
						|
       [ref: to_charlist(in_reply_to), href: to_charlist(get_href(in_reply_to))], []}
 | 
						|
    ]
 | 
						|
  end
 | 
						|
 | 
						|
  defp get_in_reply_to(_), do: []
 | 
						|
 | 
						|
  defp get_mentions(to) do
 | 
						|
    Enum.map(to, fn id ->
 | 
						|
      cond do
 | 
						|
        # Special handling for the AP/Ostatus public collections
 | 
						|
        "https://www.w3.org/ns/activitystreams#Public" == id ->
 | 
						|
          {:link,
 | 
						|
           [
 | 
						|
             rel: "mentioned",
 | 
						|
             "ostatus:object-type": "http://activitystrea.ms/schema/1.0/collection",
 | 
						|
             href: "http://activityschema.org/collection/public"
 | 
						|
           ], []}
 | 
						|
 | 
						|
        # Ostatus doesn't handle follower collections, ignore these.
 | 
						|
        Regex.match?(~r/^#{Pleroma.Web.base_url()}.+followers$/, id) ->
 | 
						|
          []
 | 
						|
 | 
						|
        true ->
 | 
						|
          {:link,
 | 
						|
           [
 | 
						|
             rel: "mentioned",
 | 
						|
             "ostatus:object-type": "http://activitystrea.ms/schema/1.0/person",
 | 
						|
             href: id
 | 
						|
           ], []}
 | 
						|
      end
 | 
						|
    end)
 | 
						|
  end
 | 
						|
 | 
						|
  defp get_links(%{local: true, data: data}) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    [
 | 
						|
      {:link, [type: ['application/atom+xml'], href: h.(data["object"]["id"]), rel: 'self'], []},
 | 
						|
      {:link, [type: ['text/html'], href: h.(data["object"]["id"]), rel: 'alternate'], []}
 | 
						|
    ]
 | 
						|
  end
 | 
						|
 | 
						|
  defp get_links(%{
 | 
						|
         local: false,
 | 
						|
         data: %{
 | 
						|
           "object" => %{
 | 
						|
             "external_url" => external_url
 | 
						|
           }
 | 
						|
         }
 | 
						|
       }) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    [
 | 
						|
      {:link, [type: ['text/html'], href: h.(external_url), rel: 'alternate'], []}
 | 
						|
    ]
 | 
						|
  end
 | 
						|
 | 
						|
  defp get_links(_activity), do: []
 | 
						|
 | 
						|
  defp get_emoji_links(emojis) do
 | 
						|
    Enum.map(emojis, fn {emoji, file} ->
 | 
						|
      {:link, [name: to_charlist(emoji), rel: 'emoji', href: to_charlist(file)], []}
 | 
						|
    end)
 | 
						|
  end
 | 
						|
 | 
						|
  def to_simple_form(activity, user, with_author \\ false)
 | 
						|
 | 
						|
  def to_simple_form(%{data: %{"object" => %{"type" => "Note"}}} = activity, user, with_author) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    updated_at = activity.data["object"]["published"]
 | 
						|
    inserted_at = activity.data["object"]["published"]
 | 
						|
 | 
						|
    attachments =
 | 
						|
      Enum.map(activity.data["object"]["attachment"] || [], fn attachment ->
 | 
						|
        url = hd(attachment["url"])
 | 
						|
 | 
						|
        {:link,
 | 
						|
         [rel: 'enclosure', href: to_charlist(url["href"]), type: to_charlist(url["mediaType"])],
 | 
						|
         []}
 | 
						|
      end)
 | 
						|
 | 
						|
    in_reply_to = get_in_reply_to(activity.data)
 | 
						|
    author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 | 
						|
    mentions = activity.recipients |> get_mentions
 | 
						|
 | 
						|
    categories =
 | 
						|
      (activity.data["object"]["tag"] || [])
 | 
						|
      |> Enum.map(fn tag ->
 | 
						|
        if is_binary(tag) do
 | 
						|
          {:category, [term: to_charlist(tag)], []}
 | 
						|
        else
 | 
						|
          nil
 | 
						|
        end
 | 
						|
      end)
 | 
						|
      |> Enum.filter(& &1)
 | 
						|
 | 
						|
    emoji_links = get_emoji_links(activity.data["object"]["emoji"] || %{})
 | 
						|
 | 
						|
    summary =
 | 
						|
      if activity.data["object"]["summary"] do
 | 
						|
        [{:summary, [], h.(activity.data["object"]["summary"])}]
 | 
						|
      else
 | 
						|
        []
 | 
						|
      end
 | 
						|
 | 
						|
    [
 | 
						|
      {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/note']},
 | 
						|
      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/post']},
 | 
						|
      # For notes, federate the object id.
 | 
						|
      {:id, h.(activity.data["object"]["id"])},
 | 
						|
      {:title, ['New note by #{user.nickname}']},
 | 
						|
      {:content, [type: 'html'],
 | 
						|
       h.(activity.data["object"]["content"] |> String.replace(~r/[\n\r]/, ""))},
 | 
						|
      {:published, h.(inserted_at)},
 | 
						|
      {:updated, h.(updated_at)},
 | 
						|
      {:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
 | 
						|
      {:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []}
 | 
						|
    ] ++
 | 
						|
      summary ++
 | 
						|
      get_links(activity) ++
 | 
						|
      categories ++ attachments ++ in_reply_to ++ author ++ mentions ++ emoji_links
 | 
						|
  end
 | 
						|
 | 
						|
  def to_simple_form(%{data: %{"type" => "Like"}} = activity, user, with_author) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    updated_at = activity.data["published"]
 | 
						|
    inserted_at = activity.data["published"]
 | 
						|
 | 
						|
    _in_reply_to = get_in_reply_to(activity.data)
 | 
						|
    author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 | 
						|
    mentions = activity.recipients |> get_mentions
 | 
						|
 | 
						|
    [
 | 
						|
      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/favorite']},
 | 
						|
      {:id, h.(activity.data["id"])},
 | 
						|
      {:title, ['New favorite by #{user.nickname}']},
 | 
						|
      {:content, [type: 'html'], ['#{user.nickname} favorited something']},
 | 
						|
      {:published, h.(inserted_at)},
 | 
						|
      {:updated, h.(updated_at)},
 | 
						|
      {:"activity:object",
 | 
						|
       [
 | 
						|
         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/note']},
 | 
						|
         # For notes, federate the object id.
 | 
						|
         {:id, h.(activity.data["object"])}
 | 
						|
       ]},
 | 
						|
      {:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
 | 
						|
      {:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
 | 
						|
      {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 | 
						|
      {:"thr:in-reply-to", [ref: to_charlist(activity.data["object"])], []}
 | 
						|
    ] ++ author ++ mentions
 | 
						|
  end
 | 
						|
 | 
						|
  def to_simple_form(%{data: %{"type" => "Announce"}} = activity, user, with_author) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    updated_at = activity.data["published"]
 | 
						|
    inserted_at = activity.data["published"]
 | 
						|
 | 
						|
    _in_reply_to = get_in_reply_to(activity.data)
 | 
						|
    author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 | 
						|
 | 
						|
    retweeted_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
 | 
						|
    retweeted_user = User.get_cached_by_ap_id(retweeted_activity.data["actor"])
 | 
						|
 | 
						|
    retweeted_xml = to_simple_form(retweeted_activity, retweeted_user, true)
 | 
						|
 | 
						|
    mentions = activity.recipients |> get_mentions
 | 
						|
 | 
						|
    [
 | 
						|
      {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 | 
						|
      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/share']},
 | 
						|
      {:id, h.(activity.data["id"])},
 | 
						|
      {:title, ['#{user.nickname} repeated a notice']},
 | 
						|
      {:content, [type: 'html'], ['RT #{retweeted_activity.data["object"]["content"]}']},
 | 
						|
      {:published, h.(inserted_at)},
 | 
						|
      {:updated, h.(updated_at)},
 | 
						|
      {:"ostatus:conversation", [ref: h.(activity.data["context"])], h.(activity.data["context"])},
 | 
						|
      {:link, [ref: h.(activity.data["context"]), rel: 'ostatus:conversation'], []},
 | 
						|
      {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []},
 | 
						|
      {:"activity:object", retweeted_xml}
 | 
						|
    ] ++ mentions ++ author
 | 
						|
  end
 | 
						|
 | 
						|
  def to_simple_form(%{data: %{"type" => "Follow"}} = activity, user, with_author) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    updated_at = activity.data["published"]
 | 
						|
    inserted_at = activity.data["published"]
 | 
						|
 | 
						|
    author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 | 
						|
 | 
						|
    mentions = (activity.recipients || []) |> get_mentions
 | 
						|
 | 
						|
    [
 | 
						|
      {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 | 
						|
      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/follow']},
 | 
						|
      {:id, h.(activity.data["id"])},
 | 
						|
      {:title, ['#{user.nickname} started following #{activity.data["object"]}']},
 | 
						|
      {:content, [type: 'html'],
 | 
						|
       ['#{user.nickname} started following #{activity.data["object"]}']},
 | 
						|
      {:published, h.(inserted_at)},
 | 
						|
      {:updated, h.(updated_at)},
 | 
						|
      {:"activity:object",
 | 
						|
       [
 | 
						|
         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
 | 
						|
         {:id, h.(activity.data["object"])},
 | 
						|
         {:uri, h.(activity.data["object"])}
 | 
						|
       ]},
 | 
						|
      {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []}
 | 
						|
    ] ++ mentions ++ author
 | 
						|
  end
 | 
						|
 | 
						|
  # Only undos of follow for now. Will need to get redone once there are more
 | 
						|
  def to_simple_form(%{data: %{"type" => "Undo"}} = activity, user, with_author) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    updated_at = activity.data["published"]
 | 
						|
    inserted_at = activity.data["published"]
 | 
						|
 | 
						|
    author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 | 
						|
    follow_activity = Activity.get_by_ap_id(activity.data["object"])
 | 
						|
 | 
						|
    mentions = (activity.recipients || []) |> get_mentions
 | 
						|
 | 
						|
    [
 | 
						|
      {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 | 
						|
      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/unfollow']},
 | 
						|
      {:id, h.(activity.data["id"])},
 | 
						|
      {:title, ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
 | 
						|
      {:content, [type: 'html'],
 | 
						|
       ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
 | 
						|
      {:published, h.(inserted_at)},
 | 
						|
      {:updated, h.(updated_at)},
 | 
						|
      {:"activity:object",
 | 
						|
       [
 | 
						|
         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
 | 
						|
         {:id, h.(follow_activity.data["object"])},
 | 
						|
         {:uri, h.(follow_activity.data["object"])}
 | 
						|
       ]},
 | 
						|
      {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []}
 | 
						|
    ] ++ mentions ++ author
 | 
						|
  end
 | 
						|
 | 
						|
  def to_simple_form(%{data: %{"type" => "Delete"}} = activity, user, with_author) do
 | 
						|
    h = fn str -> [to_charlist(str)] end
 | 
						|
 | 
						|
    updated_at = activity.data["published"]
 | 
						|
    inserted_at = activity.data["published"]
 | 
						|
 | 
						|
    author = if with_author, do: [{:author, UserRepresenter.to_simple_form(user)}], else: []
 | 
						|
 | 
						|
    [
 | 
						|
      {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
 | 
						|
      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/delete']},
 | 
						|
      {:id, h.(activity.data["object"])},
 | 
						|
      {:title, ['An object was deleted']},
 | 
						|
      {:content, [type: 'html'], ['An object was deleted']},
 | 
						|
      {:published, h.(inserted_at)},
 | 
						|
      {:updated, h.(updated_at)}
 | 
						|
    ] ++ author
 | 
						|
  end
 | 
						|
 | 
						|
  def to_simple_form(_, _, _), do: nil
 | 
						|
 | 
						|
  def wrap_with_entry(simple_form) do
 | 
						|
    [
 | 
						|
      {
 | 
						|
        :entry,
 | 
						|
        [
 | 
						|
          xmlns: 'http://www.w3.org/2005/Atom',
 | 
						|
          "xmlns:thr": 'http://purl.org/syndication/thread/1.0',
 | 
						|
          "xmlns:activity": 'http://activitystrea.ms/spec/1.0/',
 | 
						|
          "xmlns:poco": 'http://portablecontacts.net/spec/1.0',
 | 
						|
          "xmlns:ostatus": 'http://ostatus.org/schema/1.0'
 | 
						|
        ],
 | 
						|
        simple_form
 | 
						|
      }
 | 
						|
    ]
 | 
						|
  end
 | 
						|
end
 |