git.squeep.com Git - akkoma/blob - lib/pleroma/web/mastodon_api/views/status_view.ex

   1 defmodule Pleroma.Web.MastodonAPI.StatusView do
   2   use Pleroma.Web, :view
   3
   4   alias Pleroma.Activity
   5   alias Pleroma.HTML
   6   alias Pleroma.Repo
   7   alias Pleroma.User
   8   alias Pleroma.Web.CommonAPI.Utils
   9   alias Pleroma.Web.MediaProxy
  10   alias Pleroma.Web.MastodonAPI.AccountView
  11   alias Pleroma.Web.MastodonAPI.StatusView
  12
  13   # TODO: Add cached version.
  14   defp get_replied_to_activities(activities) do
  15     activities
  16     |> Enum.map(fn
  17       %{data: %{"type" => "Create", "object" => %{"inReplyTo" => in_reply_to}}} ->
  18         in_reply_to != "" && in_reply_to
  19
  20       _ ->
  21         nil
  22     end)
  23     |> Enum.filter(& &1)
  24     |> Activity.create_activity_by_object_id_query()
  25     |> Repo.all()
  26     |> Enum.reduce(%{}, fn activity, acc ->
  27       Map.put(acc, activity.data["object"]["id"], activity)
  28     end)
  29   end
  30
  31   def render("index.json", opts) do
  32     replied_to_activities = get_replied_to_activities(opts.activities)
  33
  34     opts.activities
  35     |> render_many(
  36       StatusView,
  37       "status.json",
  38       Map.put(opts, :replied_to_activities, replied_to_activities)
  39     )
  40     |> Enum.filter(fn x -> not is_nil(x) end)
  41   end
  42
  43   def render(
  44         "status.json",
  45         %{activity: %{data: %{"type" => "Announce", "object" => object}} = activity} = opts
  46       ) do
  47     user = User.get_cached_by_ap_id(activity.data["actor"])
  48     created_at = Utils.to_masto_date(activity.data["published"])
  49
  50     reblogged = Activity.get_create_activity_by_object_ap_id(object)
  51     reblogged = render("status.json", Map.put(opts, :activity, reblogged))
  52
  53     mentions =
  54       activity.recipients
  55       |> Enum.map(fn ap_id -> User.get_cached_by_ap_id(ap_id) end)
  56       |> Enum.filter(& &1)
  57       |> Enum.map(fn user -> AccountView.render("mention.json", %{user: user}) end)
  58
  59     %{
  60       id: to_string(activity.id),
  61       uri: object,
  62       url: object,
  63       account: AccountView.render("account.json", %{user: user}),
  64       in_reply_to_id: nil,
  65       in_reply_to_account_id: nil,
  66       reblog: reblogged,
  67       content: reblogged[:content] || "",
  68       created_at: created_at,
  69       reblogs_count: 0,
  70       replies_count: 0,
  71       favourites_count: 0,
  72       reblogged: false,
  73       favourited: false,
  74       muted: false,
  75       sensitive: false,
  76       spoiler_text: "",
  77       visibility: "public",
  78       media_attachments: reblogged[:media_attachments] || [],
  79       mentions: mentions,
  80       tags: reblogged[:tags] || [],
  81       application: %{
  82         name: "Web",
  83         website: nil
  84       },
  85       language: nil,
  86       emojis: []
  87     }
  88   end
  89
  90   def render("status.json", %{activity: %{data: %{"object" => object}} = activity} = opts) do
  91     user = User.get_cached_by_ap_id(activity.data["actor"])
  92
  93     like_count = object["like_count"] || 0
  94     announcement_count = object["announcement_count"] || 0
  95
  96     tags = object["tag"] || []
  97     sensitive = object["sensitive"] || Enum.member?(tags, "nsfw")
  98
  99     mentions =
 100       activity.recipients
 101       |> Enum.map(fn ap_id -> User.get_cached_by_ap_id(ap_id) end)
 102       |> Enum.filter(& &1)
 103       |> Enum.map(fn user -> AccountView.render("mention.json", %{user: user}) end)
 104
 105     repeated = opts[:for] && opts[:for].ap_id in (object["announcements"] || [])
 106     favorited = opts[:for] && opts[:for].ap_id in (object["likes"] || [])
 107
 108     attachment_data = object["attachment"] || []
 109     attachment_data = attachment_data ++ if object["type"] == "Video", do: [object], else: []
 110     attachments = render_many(attachment_data, StatusView, "attachment.json", as: :attachment)
 111
 112     created_at = Utils.to_masto_date(object["published"])
 113
 114     reply_to = get_reply_to(activity, opts)
 115     reply_to_user = reply_to && User.get_cached_by_ap_id(reply_to.data["actor"])
 116
 117     content =
 118       object
 119       |> render_content()
 120       |> HTML.filter_tags(User.html_filter_policy(opts[:for]))
 121
 122     %{
 123       id: to_string(activity.id),
 124       uri: object["id"],
 125       url: object["external_url"] || object["id"],
 126       account: AccountView.render("account.json", %{user: user}),
 127       in_reply_to_id: reply_to && to_string(reply_to.id),
 128       in_reply_to_account_id: reply_to_user && to_string(reply_to_user.id),
 129       reblog: nil,
 130       content: content,
 131       created_at: created_at,
 132       reblogs_count: announcement_count,
 133       replies_count: 0,
 134       favourites_count: like_count,
 135       reblogged: present?(repeated),
 136       favourited: present?(favorited),
 137       muted: false,
 138       sensitive: sensitive,
 139       spoiler_text: object["summary"] || "",
 140       visibility: get_visibility(object),
 141       media_attachments: attachments |> Enum.take(4),
 142       mentions: mentions,
 143       tags: build_tags(tags),
 144       application: %{
 145         name: "Web",
 146         website: nil
 147       },
 148       language: nil,
 149       emojis: build_emojis(activity.data["object"]["emoji"])
 150     }
 151   end
 152
 153   def render("status.json", _) do
 154     nil
 155   end
 156
 157   def render("attachment.json", %{attachment: attachment}) do
 158     [attachment_url | _] = attachment["url"]
 159     media_type = attachment_url["mediaType"] || attachment_url["mimeType"] || "image"
 160     href = attachment_url["href"] |> MediaProxy.url()
 161
 162     type =
 163       cond do
 164         String.contains?(media_type, "image") -> "image"
 165         String.contains?(media_type, "video") -> "video"
 166         String.contains?(media_type, "audio") -> "audio"
 167         true -> "unknown"
 168       end
 169
 170     <<hash_id::signed-32, _rest::binary>> = :crypto.hash(:md5, href)
 171
 172     %{
 173       id: to_string(attachment["id"] || hash_id),
 174       url: href,
 175       remote_url: href,
 176       preview_url: href,
 177       text_url: href,
 178       type: type,
 179       description: attachment["name"]
 180     }
 181   end
 182
 183   def get_reply_to(activity, %{replied_to_activities: replied_to_activities}) do
 184     _id = activity.data["object"]["inReplyTo"]
 185     replied_to_activities[activity.data["object"]["inReplyTo"]]
 186   end
 187
 188   def get_reply_to(%{data: %{"object" => object}}, _) do
 189     if object["inReplyTo"] && object["inReplyTo"] != "" do
 190       Activity.get_create_activity_by_object_ap_id(object["inReplyTo"])
 191     else
 192       nil
 193     end
 194   end
 195
 196   def get_visibility(object) do
 197     public = "https://www.w3.org/ns/activitystreams#Public"
 198     to = object["to"] || []
 199     cc = object["cc"] || []
 200
 201     cond do
 202       public in to ->
 203         "public"
 204
 205       public in cc ->
 206         "unlisted"
 207
 208       # this should use the sql for the object's activity
 209       Enum.any?(to, &String.contains?(&1, "/followers")) ->
 210         "private"
 211
 212       true ->
 213         "direct"
 214     end
 215   end
 216
 217   def render_content(%{"type" => "Video"} = object) do
 218     with name when not is_nil(name) and name != "" <- object["name"] do
 219       "<p><a href=\"#{object["id"]}\">#{name}</a></p>#{object["content"]}"
 220     else
 221       _ -> object["content"] || ""
 222     end
 223   end
 224
 225   def render_content(%{"type" => object_type} = object)
 226       when object_type in ["Article", "Page"] do
 227     with summary when not is_nil(summary) and summary != "" <- object["name"],
 228          url when is_bitstring(url) <- object["url"] do
 229       "<p><a href=\"#{url}\">#{summary}</a></p>#{object["content"]}"
 230     else
 231       _ -> object["content"] || ""
 232     end
 233   end
 234
 235   def render_content(object), do: object["content"] || ""
 236
 237   @doc """
 238   Builds a dictionary tags.
 239
 240   ## Examples
 241
 242   iex> Pleroma.Web.MastodonAPI.StatusView.build_tags(["fediverse", "nextcloud"])
 243   [{"name": "fediverse", "url": "/tag/fediverse"},
 244    {"name": "nextcloud", "url": "/tag/nextcloud"}]
 245
 246   """
 247   @spec build_tags(list(any())) :: list(map())
 248   def build_tags(object_tags) when is_list(object_tags) do
 249     object_tags = for tag when is_binary(tag) <- object_tags, do: tag
 250
 251     Enum.reduce(object_tags, [], fn tag, tags ->
 252       tags ++ [%{name: tag, url: "/tag/#{tag}"}]
 253     end)
 254   end
 255
 256   def build_tags(_), do: []
 257
 258   @doc """
 259   Builds list emojis.
 260
 261   Arguments: `nil` or list tuple of name and url.
 262
 263   Returns list emojis.
 264
 265   ## Examples
 266
 267   iex> Pleroma.Web.MastodonAPI.StatusView.build_emojis([{"2hu", "corndog.png"}])
 268   [%{shortcode: "2hu", static_url: "corndog.png", url: "corndog.png", visible_in_picker: false}]
 269
 270   """
 271   @spec build_emojis(nil | list(tuple())) :: list(map())
 272   def build_emojis(nil), do: []
 273
 274   def build_emojis(emojis) do
 275     emojis
 276     |> Enum.map(fn {name, url} ->
 277       name = HTML.strip_tags(name)
 278
 279       url =
 280         url
 281         |> HTML.strip_tags()
 282         |> MediaProxy.url()
 283
 284       %{shortcode: name, url: url, static_url: url, visible_in_picker: false}
 285     end)
 286   end
 287
 288   defp present?(nil), do: false
 289   defp present?(false), do: false
 290   defp present?(_), do: true
 291 end