# Pleroma: A lightweight social networking server # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/> # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Web.MastodonAPI.StatusView do use Pleroma.Web, :view alias Pleroma.Activity alias Pleroma.Conversation alias Pleroma.Conversation.Participation alias Pleroma.HTML alias Pleroma.Object alias Pleroma.Repo alias Pleroma.User alias Pleroma.Web.CommonAPI alias Pleroma.Web.CommonAPI.Utils alias Pleroma.Web.MastodonAPI.AccountView alias Pleroma.Web.MastodonAPI.StatusView alias Pleroma.Web.MediaProxy import Pleroma.Web.ActivityPub.Visibility, only: [get_visibility: 1] # TODO: Add cached version. defp get_replied_to_activities([]), do: %{} defp get_replied_to_activities(activities) do activities |> Enum.map(fn %{data: %{"type" => "Create", "object" => object}} -> object = Object.normalize(object) object.data["inReplyTo"] != "" && object.data["inReplyTo"] _ -> nil end) |> Enum.filter(& &1) |> Activity.create_by_object_ap_id() |> Repo.all() |> Enum.reduce(%{}, fn activity, acc -> object = Object.normalize(activity) Map.put(acc, object.data["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 defp get_context_id(%{data: %{"context_id" => context_id}}) when not is_nil(context_id), do: context_id defp get_context_id(%{data: %{"context" => context}}) when is_binary(context), do: Utils.context_to_conversation_id(context) defp get_context_id(_), do: nil defp reblogged?(activity, user) do object = Object.normalize(activity) || %{} present?(user && user.ap_id in (object.data["announcements"] || [])) 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) ) 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"]) activity_object = Object.normalize(activity) reblogged_activity = Activity.create_by_object_ap_id(activity_object.data["id"]) |> Activity.with_preloaded_bookmark(opts[:for]) |> Repo.one() reblogged = render("status.json", Map.put(opts, :activity, reblogged_activity)) favorited = opts[:for] && opts[:for].ap_id in (activity_object.data["likes"] || []) bookmarked = Activity.get_bookmark(reblogged_activity, opts[:for]) != nil 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: activity_object.data["id"], url: activity_object.data["id"], account: AccountView.render("account.json", %{user: user, for: opts[:for]}), 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: reblogged?(reblogged_activity, opts[:for]), favourited: present?(favorited), bookmarked: present?(bookmarked), 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: [], pleroma: %{ local: activity.local } } end def render("status.json", %{activity: %{data: %{"object" => _object}} = activity} = opts) do object = Object.normalize(activity) user = get_user(activity.data["actor"]) like_count = object.data["like_count"] || 0 announcement_count = object.data["announcement_count"] || 0 tags = object.data["tag"] || [] sensitive = object.data["sensitive"] || Enum.member?(tags, "nsfw") tag_mentions = tags |> Enum.filter(fn tag -> is_map(tag) and tag["type"] == "Mention" end) |> Enum.map(fn tag -> tag["href"] end) mentions = (object.data["to"] ++ tag_mentions) |> Enum.uniq() |> 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) favorited = opts[:for] && opts[:for].ap_id in (object.data["likes"] || []) bookmarked = Activity.get_bookmark(activity, opts[:for]) != nil thread_muted? = case activity.thread_muted? do thread_muted? when is_boolean(thread_muted?) -> thread_muted? nil -> CommonAPI.thread_muted?(user, activity) end attachment_data = object.data["attachment"] || [] attachments = render_many(attachment_data, StatusView, "attachment.json", as: :attachment) created_at = Utils.to_masto_date(object.data["published"]) reply_to = get_reply_to(activity, opts) reply_to_user = reply_to && get_user(reply_to.data["actor"]) content = object |> render_content() content_html = content |> HTML.get_cached_scrubbed_html_for_activity( User.html_filter_policy(opts[:for]), activity, "mastoapi:content" ) content_plaintext = content |> HTML.get_cached_stripped_html_for_activity( activity, "mastoapi:content" ) summary = object.data["summary"] || "" summary_html = summary |> HTML.get_cached_scrubbed_html_for_activity( User.html_filter_policy(opts[:for]), activity, "mastoapi:summary" ) summary_plaintext = summary |> HTML.get_cached_stripped_html_for_activity( activity, "mastoapi:summary" ) card = render("card.json", Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)) url = if user.local do Pleroma.Web.Router.Helpers.o_status_url(Pleroma.Web.Endpoint, :notice, activity) else object.data["url"] || object.data["external_url"] || object.data["id"] end direct_conversation_id = with {_, true} <- {:include_id, opts[:with_direct_conversation_id]}, {_, %User{} = for_user} <- {:for_user, opts[:for]}, %{data: %{"context" => context}} when is_binary(context) <- activity, %Conversation{} = conversation <- Conversation.get_for_ap_id(context), %Participation{id: participation_id} <- Participation.for_user_and_conversation(for_user, conversation) do participation_id else _e -> nil end %{ id: to_string(activity.id), uri: object.data["id"], url: url, account: AccountView.render("account.json", %{user: user, for: opts[:for]}), 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_html, created_at: created_at, reblogs_count: announcement_count, replies_count: object.data["repliesCount"] || 0, favourites_count: like_count, reblogged: reblogged?(activity, opts[:for]), favourited: present?(favorited), bookmarked: present?(bookmarked), muted: thread_muted? || User.mutes?(opts[:for], user), pinned: pinned?(activity, user), sensitive: sensitive, spoiler_text: summary_html, visibility: get_visibility(object), media_attachments: attachments, poll: render("poll.json", %{object: object, for: opts[:for]}), mentions: mentions, tags: build_tags(tags), application: %{ name: "Web", website: nil }, language: nil, emojis: build_emojis(object.data["emoji"]), pleroma: %{ local: activity.local, conversation_id: get_context_id(activity), in_reply_to_account_acct: reply_to_user && reply_to_user.nickname, content: %{"text/plain" => content_plaintext}, spoiler_text: %{"text/plain" => summary_plaintext}, direct_conversation_id: direct_conversation_id } } end def render("status.json", _) do nil end def render("card.json", %{rich_media: rich_media, page_url: page_url}) do page_url_data = URI.parse(page_url) page_url_data = if rich_media[:url] != nil do URI.merge(page_url_data, URI.parse(rich_media[:url])) else page_url_data end page_url = page_url_data |> to_string image_url = if rich_media[:image] != nil do URI.merge(page_url_data, URI.parse(rich_media[:image])) |> to_string else nil end 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: image_url |> 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 <<hash_id::signed-32, _rest::binary>> = :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"], pleroma: %{mime_type: media_type} } end def render("poll.json", %{object: object} = opts) do {multiple, options} = case object.data do %{"anyOf" => options} when is_list(options) -> {true, options} %{"oneOf" => options} when is_list(options) -> {false, options} _ -> {nil, nil} end if options do end_time = (object.data["closed"] || object.data["endTime"]) |> NaiveDateTime.from_iso8601!() expired = end_time |> NaiveDateTime.compare(NaiveDateTime.utc_now()) |> case do :lt -> true _ -> false end voted = if opts[:for] do existing_votes = Pleroma.Web.ActivityPub.Utils.get_existing_votes(opts[:for].ap_id, object) existing_votes != [] or opts[:for].ap_id == object.data["actor"] else false end {options, votes_count} = Enum.map_reduce(options, 0, fn %{"name" => name} = option, count -> current_count = option["replies"]["totalItems"] || 0 {%{ title: HTML.strip_tags(name), votes_count: current_count }, current_count + count} end) %{ # Mastodon uses separate ids for polls, but an object can't have # more than one poll embedded so object id is fine id: to_string(object.id), expires_at: Utils.to_masto_date(end_time), expired: expired, multiple: multiple, votes_count: votes_count, options: options, voted: voted, emojis: build_emojis(object.data["emoji"]) } else nil end end def get_reply_to(activity, %{replied_to_activities: replied_to_activities}) do object = Object.normalize(activity) with nil <- replied_to_activities[object.data["inReplyTo"]] do # If user didn't participate in the thread Activity.get_in_reply_to_activity(activity) end end def get_reply_to(%{data: %{"object" => _object}} = activity, _) do object = Object.normalize(activity) if object.data["inReplyTo"] && object.data["inReplyTo"] != "" do Activity.get_create_by_object_ap_id(object.data["inReplyTo"]) else nil end end def render_content(%{data: %{"type" => "Video"}} = object) do with name when not is_nil(name) and name != "" <- object.data["name"] do "<p><a href=\"#{object.data["id"]}\">#{name}</a></p>#{object.data["content"]}" else _ -> object.data["content"] || "" end end def render_content(%{data: %{"type" => object_type}} = object) when object_type in ["Article", "Page"] do with summary when not is_nil(summary) and summary != "" <- object.data["name"], url when is_bitstring(url) <- object.data["url"] do "<p><a href=\"#{url}\">#{summary}</a></p>#{object.data["content"]}" else _ -> object.data["content"] || "" end end def render_content(object), do: object.data["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