akkoma/lib/pleroma/web/mastodon_api/views/status_view.ex
2019-02-10 10:42:30 +01:00

365 lines
10 KiB
Elixir

# 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.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)
)
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,
bookmarked: 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"] || [])
bookmarked = opts[:for] && object["id"] in opts[:for].bookmarks
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),
bookmarked: present?(bookmarked),
muted: Pleroma.Web.ThreadMute.muted?(user, activity),
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_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"]
}
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
"<p><a href=\"#{object["id"]}\">#{name}</a></p>#{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
"<p><a href=\"#{url}\">#{summary}</a></p>#{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