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

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.CommonAPI.Utils do
   6   alias Calendar.Strftime
   7   alias Comeonin.Pbkdf2
   8   alias Pleroma.{Activity, Formatter, Object, Repo}
   9   alias Pleroma.User
  10   alias Pleroma.Web
  11   alias Pleroma.Web.ActivityPub.Utils
  12   alias Pleroma.Web.Endpoint
  13   alias Pleroma.Web.MediaProxy
  14
  15   # This is a hack for twidere.
  16   def get_by_id_or_ap_id(id) do
  17     activity = Repo.get(Activity, id) || Activity.get_create_activity_by_object_ap_id(id)
  18
  19     activity &&
  20       if activity.data["type"] == "Create" do
  21         activity
  22       else
  23         Activity.get_create_activity_by_object_ap_id(activity.data["object"])
  24       end
  25   end
  26
  27   def get_replied_to_activity(""), do: nil
  28
  29   def get_replied_to_activity(id) when not is_nil(id) do
  30     Repo.get(Activity, id)
  31   end
  32
  33   def get_replied_to_activity(_), do: nil
  34
  35   def attachments_from_ids(ids) do
  36     Enum.map(ids || [], fn media_id ->
  37       Repo.get(Object, media_id).data
  38     end)
  39   end
  40
  41   def to_for_user_and_mentions(user, mentions, inReplyTo, "public") do
  42     mentioned_users = Enum.map(mentions, fn {_, %{ap_id: ap_id}} -> ap_id end)
  43
  44     to = ["https://www.w3.org/ns/activitystreams#Public" | mentioned_users]
  45     cc = [user.follower_address]
  46
  47     if inReplyTo do
  48       {Enum.uniq([inReplyTo.data["actor"] | to]), cc}
  49     else
  50       {to, cc}
  51     end
  52   end
  53
  54   def to_for_user_and_mentions(user, mentions, inReplyTo, "unlisted") do
  55     mentioned_users = Enum.map(mentions, fn {_, %{ap_id: ap_id}} -> ap_id end)
  56
  57     to = [user.follower_address | mentioned_users]
  58     cc = ["https://www.w3.org/ns/activitystreams#Public"]
  59
  60     if inReplyTo do
  61       {Enum.uniq([inReplyTo.data["actor"] | to]), cc}
  62     else
  63       {to, cc}
  64     end
  65   end
  66
  67   def to_for_user_and_mentions(user, mentions, inReplyTo, "private") do
  68     {to, cc} = to_for_user_and_mentions(user, mentions, inReplyTo, "direct")
  69     {[user.follower_address | to], cc}
  70   end
  71
  72   def to_for_user_and_mentions(_user, mentions, inReplyTo, "direct") do
  73     mentioned_users = Enum.map(mentions, fn {_, %{ap_id: ap_id}} -> ap_id end)
  74
  75     if inReplyTo do
  76       {Enum.uniq([inReplyTo.data["actor"] | mentioned_users]), []}
  77     else
  78       {mentioned_users, []}
  79     end
  80   end
  81
  82   def make_content_html(
  83         status,
  84         mentions,
  85         attachments,
  86         tags,
  87         content_type,
  88         no_attachment_links \\ false
  89       ) do
  90     status
  91     |> format_input(mentions, tags, content_type)
  92     |> maybe_add_attachments(attachments, no_attachment_links)
  93   end
  94
  95   def make_context(%Activity{data: %{"context" => context}}), do: context
  96   def make_context(_), do: Utils.generate_context_id()
  97
  98   def maybe_add_attachments(text, _attachments, _no_links = true), do: text
  99
 100   def maybe_add_attachments(text, attachments, _no_links) do
 101     add_attachments(text, attachments)
 102   end
 103
 104   def add_attachments(text, attachments) do
 105     attachment_text =
 106       Enum.map(attachments, fn
 107         %{"url" => [%{"href" => href} | _]} = attachment ->
 108           name = attachment["name"] || URI.decode(Path.basename(href))
 109           href = MediaProxy.url(href)
 110           "<a href=\"#{href}\" class='attachment'>#{shortname(name)}</a>"
 111
 112         _ ->
 113           ""
 114       end)
 115
 116     Enum.join([text | attachment_text], "<br>")
 117   end
 118
 119   @doc """
 120   Formatting text to plain text.
 121   """
 122   def format_input(text, mentions, tags, "text/plain") do
 123     text
 124     |> Formatter.html_escape("text/plain")
 125     |> String.replace(~r/\r?\n/, "<br>")
 126     |> (&{[], &1}).()
 127     |> Formatter.add_links()
 128     |> Formatter.add_user_links(mentions)
 129     |> Formatter.add_hashtag_links(tags)
 130     |> Formatter.finalize()
 131   end
 132
 133   @doc """
 134   Formatting text to html.
 135   """
 136   def format_input(text, mentions, _tags, "text/html") do
 137     text
 138     |> Formatter.html_escape("text/html")
 139     |> String.replace(~r/\r?\n/, "<br>")
 140     |> (&{[], &1}).()
 141     |> Formatter.add_user_links(mentions)
 142     |> Formatter.finalize()
 143   end
 144
 145   @doc """
 146   Formatting text to markdown.
 147   """
 148   def format_input(text, mentions, tags, "text/markdown") do
 149     text
 150     |> Formatter.mentions_escape(mentions)
 151     |> Earmark.as_html!()
 152     |> Formatter.html_escape("text/html")
 153     |> (&{[], &1}).()
 154     |> Formatter.add_user_links(mentions)
 155     |> Formatter.add_hashtag_links(tags)
 156     |> Formatter.finalize()
 157   end
 158
 159   def add_tag_links(text, tags) do
 160     tags =
 161       tags
 162       |> Enum.sort_by(fn {tag, _} -> -String.length(tag) end)
 163
 164     Enum.reduce(tags, text, fn {full, tag}, text ->
 165       url = "<a href='#{Web.base_url()}/tag/#{tag}' rel='tag'>##{tag}</a>"
 166       String.replace(text, full, url)
 167     end)
 168   end
 169
 170   def make_note_data(
 171         actor,
 172         to,
 173         context,
 174         content_html,
 175         attachments,
 176         inReplyTo,
 177         tags,
 178         cw \\ nil,
 179         cc \\ []
 180       ) do
 181     object = %{
 182       "type" => "Note",
 183       "to" => to,
 184       "cc" => cc,
 185       "content" => content_html,
 186       "summary" => cw,
 187       "context" => context,
 188       "attachment" => attachments,
 189       "actor" => actor,
 190       "tag" => tags |> Enum.map(fn {_, tag} -> tag end) |> Enum.uniq()
 191     }
 192
 193     if inReplyTo do
 194       object
 195       |> Map.put("inReplyTo", inReplyTo.data["object"]["id"])
 196       |> Map.put("inReplyToStatusId", inReplyTo.id)
 197     else
 198       object
 199     end
 200   end
 201
 202   def format_naive_asctime(date) do
 203     date |> DateTime.from_naive!("Etc/UTC") |> format_asctime
 204   end
 205
 206   def format_asctime(date) do
 207     Strftime.strftime!(date, "%a %b %d %H:%M:%S %z %Y")
 208   end
 209
 210   def date_to_asctime(date) do
 211     with {:ok, date, _offset} <- date |> DateTime.from_iso8601() do
 212       format_asctime(date)
 213     else
 214       _e ->
 215         ""
 216     end
 217   end
 218
 219   def to_masto_date(%NaiveDateTime{} = date) do
 220     date
 221     |> NaiveDateTime.to_iso8601()
 222     |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
 223   end
 224
 225   def to_masto_date(date) do
 226     try do
 227       date
 228       |> NaiveDateTime.from_iso8601!()
 229       |> NaiveDateTime.to_iso8601()
 230       |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
 231     rescue
 232       _e -> ""
 233     end
 234   end
 235
 236   defp shortname(name) do
 237     if String.length(name) < 30 do
 238       name
 239     else
 240       String.slice(name, 0..30) <> "…"
 241     end
 242   end
 243
 244   def confirm_current_password(user, password) do
 245     with %User{local: true} = db_user <- Repo.get(User, user.id),
 246          true <- Pbkdf2.checkpw(password, db_user.password_hash) do
 247       {:ok, db_user}
 248     else
 249       _ -> {:error, "Invalid password."}
 250     end
 251   end
 252
 253   def emoji_from_profile(%{info: _info} = user) do
 254     (Formatter.get_emoji(user.bio) ++ Formatter.get_emoji(user.name))
 255     |> Enum.map(fn {shortcode, url} ->
 256       %{
 257         "type" => "Emoji",
 258         "icon" => %{"type" => "Image", "url" => "#{Endpoint.url()}#{url}"},
 259         "name" => ":#{shortcode}:"
 260       }
 261     end)
 262   end
 263 end