# Pleroma: A lightweight social networking server # Copyright © 2017-2019 Pleroma Authors # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Web.MastodonAPI.StatusView do use Pleroma.Web, :view alias Pleroma.Activity alias Pleroma.HTML alias Pleroma.Repo alias Pleroma.User alias Pleroma.Web.CommonAPI.Utils alias Pleroma.Web.MediaProxy alias Pleroma.Web.MastodonAPI.AccountView alias Pleroma.Web.MastodonAPI.StatusView # TODO: Add cached version. defp get_replied_to_activities(activities) do activities |> Enum.map(fn %{data: %{"type" => "Create", "object" => %{"inReplyTo" => in_reply_to}}} -> in_reply_to != "" && in_reply_to _ -> nil end) |> Enum.filter(& &1) |> Activity.create_by_object_ap_id() |> Repo.all() |> Enum.reduce(%{}, fn activity, acc -> Map.put(acc, activity.data["object"]["id"], activity) end) end defp get_user(ap_id) do cond do user = User.get_cached_by_ap_id(ap_id) -> user user = User.get_by_guessed_nickname(ap_id) -> user true -> User.error_user(ap_id) end end def render("index.json", opts) do replied_to_activities = get_replied_to_activities(opts.activities) opts.activities |> safe_render_many( StatusView, "status.json", Map.put(opts, :replied_to_activities, replied_to_activities) ) |> Enum.filter(fn x -> not is_nil(x) end) end def render( "status.json", %{activity: %{data: %{"type" => "Announce", "object" => object}} = activity} = opts ) do user = get_user(activity.data["actor"]) created_at = Utils.to_masto_date(activity.data["published"]) reblogged = Activity.get_create_by_object_ap_id(object) reblogged = render("status.json", Map.put(opts, :activity, reblogged)) mentions = activity.recipients |> Enum.map(fn ap_id -> User.get_cached_by_ap_id(ap_id) end) |> Enum.filter(& &1) |> Enum.map(fn user -> AccountView.render("mention.json", %{user: user}) end) %{ id: to_string(activity.id), uri: object, url: object, account: AccountView.render("account.json", %{user: user}), in_reply_to_id: nil, in_reply_to_account_id: nil, reblog: reblogged, content: reblogged[:content] || "", created_at: created_at, reblogs_count: 0, replies_count: 0, favourites_count: 0, reblogged: false, favourited: false, muted: false, pinned: pinned?(activity, user), sensitive: false, spoiler_text: "", visibility: "public", media_attachments: reblogged[:media_attachments] || [], mentions: mentions, tags: reblogged[:tags] || [], application: %{ name: "Web", website: nil }, language: nil, emojis: [] } end def render("status.json", %{activity: %{data: %{"object" => object}} = activity} = opts) do user = get_user(activity.data["actor"]) like_count = object["like_count"] || 0 announcement_count = object["announcement_count"] || 0 tags = object["tag"] || [] sensitive = object["sensitive"] || Enum.member?(tags, "nsfw") mentions = activity.recipients |> Enum.map(fn ap_id -> User.get_cached_by_ap_id(ap_id) end) |> Enum.filter(& &1) |> Enum.map(fn user -> AccountView.render("mention.json", %{user: user}) end) repeated = opts[:for] && opts[:for].ap_id in (object["announcements"] || []) favorited = opts[:for] && opts[:for].ap_id in (object["likes"] || []) attachment_data = object["attachment"] || [] attachments = render_many(attachment_data, StatusView, "attachment.json", as: :attachment) created_at = Utils.to_masto_date(object["published"]) reply_to = get_reply_to(activity, opts) reply_to_user = reply_to && get_user(reply_to.data["actor"]) content = object |> render_content() |> HTML.get_cached_scrubbed_html_for_object( User.html_filter_policy(opts[:for]), activity, __MODULE__ ) card = render("card.json", Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)) %{ id: to_string(activity.id), uri: object["id"], url: object["external_url"] || object["id"], account: AccountView.render("account.json", %{user: user}), in_reply_to_id: reply_to && to_string(reply_to.id), in_reply_to_account_id: reply_to_user && to_string(reply_to_user.id), reblog: nil, card: card, content: content, created_at: created_at, reblogs_count: announcement_count, replies_count: 0, favourites_count: like_count, reblogged: present?(repeated), favourited: present?(favorited), muted: false, pinned: pinned?(activity, user), sensitive: sensitive, spoiler_text: object["summary"] || "", visibility: get_visibility(object), media_attachments: attachments |> Enum.take(4), mentions: mentions, tags: build_tags(tags), application: %{ name: "Web", website: nil }, language: nil, emojis: build_emojis(activity.data["object"]["emoji"]) } end def render("status.json", _) do nil end def render("card.json", %{rich_media: rich_media, page_url: page_url}) do page_url = rich_media[:url] || page_url page_url_data = URI.parse(page_url) site_name = rich_media[:site_name] || page_url_data.host %{ type: "link", provider_name: site_name, provider_url: page_url_data.scheme <> "://" <> page_url_data.host, url: page_url, image: rich_media[:image] |> MediaProxy.url(), title: rich_media[:title], description: rich_media[:description], pleroma: %{ opengraph: rich_media } } end def render("card.json", _) do nil end def render("attachment.json", %{attachment: attachment}) do [attachment_url | _] = attachment["url"] media_type = attachment_url["mediaType"] || attachment_url["mimeType"] || "image" href = attachment_url["href"] |> MediaProxy.url() type = cond do String.contains?(media_type, "image") -> "image" String.contains?(media_type, "video") -> "video" String.contains?(media_type, "audio") -> "audio" true -> "unknown" end <> = :crypto.hash(:md5, href) %{ id: to_string(attachment["id"] || hash_id), url: href, remote_url: href, preview_url: href, text_url: href, type: type, description: attachment["name"] } end def get_reply_to(activity, %{replied_to_activities: replied_to_activities}) do _id = activity.data["object"]["inReplyTo"] replied_to_activities[activity.data["object"]["inReplyTo"]] end def get_reply_to(%{data: %{"object" => object}}, _) do if object["inReplyTo"] && object["inReplyTo"] != "" do Activity.get_create_by_object_ap_id(object["inReplyTo"]) else nil end end def get_visibility(object) do public = "https://www.w3.org/ns/activitystreams#Public" to = object["to"] || [] cc = object["cc"] || [] cond do public in to -> "public" public in cc -> "unlisted" # this should use the sql for the object's activity Enum.any?(to, &String.contains?(&1, "/followers")) -> "private" length(cc) > 0 -> "private" true -> "direct" end end def render_content(%{"type" => "Video"} = object) do with name when not is_nil(name) and name != "" <- object["name"] do "

#{name}

#{object["content"]}" else _ -> object["content"] || "" end end def render_content(%{"type" => object_type} = object) when object_type in ["Article", "Page"] do with summary when not is_nil(summary) and summary != "" <- object["name"], url when is_bitstring(url) <- object["url"] do "

#{summary}

#{object["content"]}" else _ -> object["content"] || "" end end def render_content(object), do: object["content"] || "" @doc """ Builds a dictionary tags. ## Examples iex> Pleroma.Web.MastodonAPI.StatusView.build_tags(["fediverse", "nextcloud"]) [{"name": "fediverse", "url": "/tag/fediverse"}, {"name": "nextcloud", "url": "/tag/nextcloud"}] """ @spec build_tags(list(any())) :: list(map()) def build_tags(object_tags) when is_list(object_tags) do object_tags = for tag when is_binary(tag) <- object_tags, do: tag Enum.reduce(object_tags, [], fn tag, tags -> tags ++ [%{name: tag, url: "/tag/#{tag}"}] end) end def build_tags(_), do: [] @doc """ Builds list emojis. Arguments: `nil` or list tuple of name and url. Returns list emojis. ## Examples iex> Pleroma.Web.MastodonAPI.StatusView.build_emojis([{"2hu", "corndog.png"}]) [%{shortcode: "2hu", static_url: "corndog.png", url: "corndog.png", visible_in_picker: false}] """ @spec build_emojis(nil | list(tuple())) :: list(map()) def build_emojis(nil), do: [] def build_emojis(emojis) do emojis |> Enum.map(fn {name, url} -> name = HTML.strip_tags(name) url = url |> HTML.strip_tags() |> MediaProxy.url() %{shortcode: name, url: url, static_url: url, visible_in_picker: false} end) end defp present?(nil), do: false defp present?(false), do: false defp present?(_), do: true defp pinned?(%Activity{id: id}, %User{info: %{pinned_activities: pinned_activities}}), do: id in pinned_activities end