git.squeep.com Git - akkoma/blob - lib/pleroma/web/common_api/utils.ex

   1 defmodule Pleroma.Web.CommonAPI.Utils do
   2   alias Pleroma.{Repo, Object, Formatter, User, Activity}
   3   alias Pleroma.Web.ActivityPub.Utils
   4   alias Calendar.Strftime
   5
   6   # This is a hack for twidere.
   7   def get_by_id_or_ap_id(id) do
   8     activity = Repo.get(Activity, id) || Activity.get_create_activity_by_object_ap_id(id)
   9     if activity.data["type"] == "Create" do
  10       activity
  11     else
  12       Activity.get_create_activity_by_object_ap_id(activity.data["object"])
  13     end
  14   end
  15
  16   def get_replied_to_activity(id) when not is_nil(id) do
  17     Repo.get(Activity, id)
  18   end
  19   def get_replied_to_activity(_), do: nil
  20
  21   def attachments_from_ids(ids) do
  22     Enum.map(ids || [], fn (media_id) ->
  23       Repo.get(Object, media_id).data
  24     end)
  25   end
  26
  27   def to_for_user_and_mentions(user, mentions, inReplyTo) do
  28     default_to = [
  29       user.follower_address,
  30       "https://www.w3.org/ns/activitystreams#Public"
  31     ]
  32
  33     to = default_to ++ Enum.map(mentions, fn ({_, %{ap_id: ap_id}}) -> ap_id end)
  34     if inReplyTo do
  35       Enum.uniq([inReplyTo.data["actor"] | to])
  36     else
  37       to
  38     end
  39   end
  40
  41   def make_content_html(status, mentions, attachments, tags) do
  42     status
  43     |> format_input(mentions, tags)
  44     |> add_attachments(attachments)
  45   end
  46
  47   def make_context(%Activity{data: %{"context" => context}}), do: context
  48   def make_context(_), do: Utils.generate_context_id
  49
  50   def add_attachments(text, attachments) do
  51     attachment_text = Enum.map(attachments, fn
  52       (%{"url" => [%{"href" => href} | _]}) ->
  53         name = URI.decode(Path.basename(href))
  54         "<a href=\"#{href}\" class='attachment'>#{shortname(name)}</a>"
  55       _ -> ""
  56     end)
  57     Enum.join([text | attachment_text], "<br>\n")
  58   end
  59
  60   def format_input(text, mentions, tags) do
  61     HtmlSanitizeEx.strip_tags(text)
  62     |> Formatter.linkify
  63     |> String.replace("\n", "<br>\n")
  64     |> add_user_links(mentions)
  65     |> add_tag_links(tags)
  66   end
  67
  68   def add_tag_links(text, tags) do
  69     tags = tags
  70     |> Enum.sort_by(fn ({tag, _}) -> -String.length(tag) end)
  71
  72     Enum.reduce(tags, text, fn({full, tag}, text) ->
  73       url = "#<a href='#{Pleroma.Web.base_url}/tag/#{tag}' rel='tag'>#{tag}</a>"
  74       String.replace(text, full, url)
  75     end)
  76   end
  77
  78   def add_user_links(text, mentions) do
  79     mentions = mentions
  80     |> Enum.sort_by(fn ({name, _}) -> -String.length(name) end)
  81     |> Enum.map(fn({name, user}) -> {name, user, Ecto.UUID.generate} end)
  82
  83     # This replaces the mention with a unique reference first so it doesn't
  84     # contain parts of other replaced mentions. There probably is a better
  85     # solution for this...
  86     step_one = mentions
  87     |> Enum.reduce(text, fn ({match, _user, uuid}, text) ->
  88       String.replace(text, match, uuid)
  89     end)
  90
  91     Enum.reduce(mentions, step_one, fn ({match, %User{ap_id: ap_id}, uuid}, text) ->
  92       short_match = String.split(match, "@") |> tl() |> hd()
  93       String.replace(text, uuid, "<a href='#{ap_id}'>@#{short_match}</a>")
  94     end)
  95   end
  96
  97   def make_note_data(actor, to, context, content_html, attachments, inReplyTo, tags) do
  98       object = %{
  99         "type" => "Note",
 100         "to" => to,
 101         "content" => content_html,
 102         "context" => context,
 103         "attachment" => attachments,
 104         "actor" => actor,
 105         "tag" => tags |> Enum.map(fn ({_, tag}) -> tag end)
 106       }
 107
 108     if inReplyTo do
 109       object
 110       |> Map.put("inReplyTo", inReplyTo.data["object"]["id"])
 111       |> Map.put("inReplyToStatusId", inReplyTo.id)
 112     else
 113       object
 114     end
 115   end
 116
 117   def format_naive_asctime(date) do
 118     date |> DateTime.from_naive!("Etc/UTC") |> format_asctime
 119   end
 120
 121   def format_asctime(date) do
 122     Strftime.strftime!(date, "%a %b %d %H:%M:%S %z %Y")
 123   end
 124
 125   def date_to_asctime(date) do
 126     with {:ok, date, _offset} <- date |> DateTime.from_iso8601 do
 127       format_asctime(date)
 128     else _e ->
 129         ""
 130     end
 131   end
 132
 133   def to_masto_date(%NaiveDateTime{} = date) do
 134     date
 135     |> NaiveDateTime.to_iso8601
 136     |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
 137   end
 138
 139   def to_masto_date(date) do
 140     try do
 141       date
 142       |> NaiveDateTime.from_iso8601!
 143       |> NaiveDateTime.to_iso8601
 144       |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
 145     rescue
 146       _e -> ""
 147     end
 148   end
 149
 150   defp shortname(name) do
 151     if String.length(name) < 30 do
 152       name
 153     else
 154       String.slice(name, 0..30) <> "…"
 155     end
 156   end
 157 end