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

   1 defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
   2   alias Pleroma.{User, Activity, Repo, Object}
   3   alias Pleroma.Web.ActivityPub.ActivityPub
   4   alias Pleroma.Web.TwitterAPI.Representers.ActivityRepresenter
   5   alias Pleroma.Web.TwitterAPI.UserView
   6   alias Pleroma.Web.{OStatus, CommonAPI}
   7   import Ecto.Query
   8
   9   @httpoison Application.get_env(:pleroma, :httpoison)
  10
  11   def create_status(%User{} = user, %{"status" => _} = data) do
  12     CommonAPI.post(user, data)
  13   end
  14
  15   def delete(%User{} = user, id) do
  16     # TwitterAPI does not have an "unretweet" endpoint; instead this is done
  17     # via the "destroy" endpoint.  Therefore, there is a need to handle
  18     # when the status to "delete" is actually an Announce (repeat) object.
  19     with %Activity{data: %{"type" => type}} <- Repo.get(Activity, id) do
  20       case type do
  21         "Announce" -> unrepeat(user, id)
  22         _ -> CommonAPI.delete(id, user)
  23       end
  24     end
  25   end
  26
  27   def follow(%User{} = follower, params) do
  28     with {:ok, %User{} = followed} <- get_user(params),
  29          {:ok, follower} <- User.follow(follower, followed),
  30          {:ok, activity} <- ActivityPub.follow(follower, followed) do
  31       {:ok, follower, followed, activity}
  32     else
  33       err -> err
  34     end
  35   end
  36
  37   def unfollow(%User{} = follower, params) do
  38     with {:ok, %User{} = unfollowed} <- get_user(params),
  39          {:ok, follower, follow_activity} <- User.unfollow(follower, unfollowed),
  40          {:ok, _activity} <-
  41            ActivityPub.insert(%{
  42              "type" => "Undo",
  43              "actor" => follower.ap_id,
  44              # get latest Follow for these users
  45              "object" => follow_activity.data["id"],
  46              "published" => make_date()
  47            }) do
  48       {:ok, follower, unfollowed}
  49     else
  50       err -> err
  51     end
  52   end
  53
  54   def block(%User{} = blocker, params) do
  55     with {:ok, %User{} = blocked} <- get_user(params),
  56          {:ok, blocker} <- User.block(blocker, blocked) do
  57       {:ok, blocker, blocked}
  58     else
  59       err -> err
  60     end
  61   end
  62
  63   def unblock(%User{} = blocker, params) do
  64     with {:ok, %User{} = blocked} <- get_user(params),
  65          {:ok, blocker} <- User.unblock(blocker, blocked) do
  66       {:ok, blocker, blocked}
  67     else
  68       err -> err
  69     end
  70   end
  71
  72   def repeat(%User{} = user, ap_id_or_id) do
  73     with {:ok, _announce, %{data: %{"id" => id}}} = CommonAPI.repeat(ap_id_or_id, user),
  74          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
  75       {:ok, activity}
  76     end
  77   end
  78
  79   defp unrepeat(%User{} = user, ap_id_or_id) do
  80     with {:ok, _unannounce, activity, _object} <- CommonAPI.unrepeat(ap_id_or_id, user) do
  81       {:ok, activity}
  82     end
  83   end
  84
  85   def fav(%User{} = user, ap_id_or_id) do
  86     with {:ok, _announce, %{data: %{"id" => id}}} = CommonAPI.favorite(ap_id_or_id, user),
  87          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
  88       {:ok, activity}
  89     end
  90   end
  91
  92   def unfav(%User{} = user, ap_id_or_id) do
  93     with {:ok, %{data: %{"id" => id}}} = CommonAPI.unfavorite(ap_id_or_id, user),
  94          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
  95       {:ok, activity}
  96     end
  97   end
  98
  99   def upload(%Plug.Upload{} = file, format \\ "xml") do
 100     {:ok, object} = ActivityPub.upload(file)
 101
 102     url = List.first(object.data["url"])
 103     href = url["href"]
 104     type = url["mediaType"]
 105
 106     case format do
 107       "xml" ->
 108         # Fake this as good as possible...
 109         """
 110         <?xml version="1.0" encoding="UTF-8"?>
 111         <rsp stat="ok" xmlns:atom="http://www.w3.org/2005/Atom">
 112         <mediaid>#{object.id}</mediaid>
 113         <media_id>#{object.id}</media_id>
 114         <media_id_string>#{object.id}</media_id_string>
 115         <media_url>#{href}</media_url>
 116         <mediaurl>#{href}</mediaurl>
 117         <atom:link rel="enclosure" href="#{href}" type="#{type}"></atom:link>
 118         </rsp>
 119         """
 120
 121       "json" ->
 122         %{
 123           media_id: object.id,
 124           media_id_string: "#{object.id}}",
 125           media_url: href,
 126           size: 0
 127         }
 128         |> Jason.encode!()
 129     end
 130   end
 131
 132   def register_user(params) do
 133     params = %{
 134       nickname: params["nickname"],
 135       name: params["fullname"],
 136       bio: params["bio"],
 137       email: params["email"],
 138       password: params["password"],
 139       password_confirmation: params["confirm"]
 140     }
 141
 142     changeset = User.register_changeset(%User{}, params)
 143
 144     with {:ok, user} <- Repo.insert(changeset) do
 145       {:ok, user}
 146     else
 147       {:error, changeset} ->
 148         errors =
 149           Ecto.Changeset.traverse_errors(changeset, fn {msg, _opts} -> msg end)
 150           |> Jason.encode!()
 151
 152         {:error, %{error: errors}}
 153     end
 154   end
 155
 156   def get_by_id_or_nickname(id_or_nickname) do
 157     if !is_integer(id_or_nickname) && :error == Integer.parse(id_or_nickname) do
 158       Repo.get_by(User, nickname: id_or_nickname)
 159     else
 160       Repo.get(User, id_or_nickname)
 161     end
 162   end
 163
 164   def get_user(user \\ nil, params) do
 165     case params do
 166       %{"user_id" => user_id} ->
 167         case target = get_by_id_or_nickname(user_id) do
 168           nil ->
 169             {:error, "No user with such user_id"}
 170
 171           _ ->
 172             {:ok, target}
 173         end
 174
 175       %{"screen_name" => nickname} ->
 176         case target = Repo.get_by(User, nickname: nickname) do
 177           nil ->
 178             {:error, "No user with such screen_name"}
 179
 180           _ ->
 181             {:ok, target}
 182         end
 183
 184       _ ->
 185         if user do
 186           {:ok, user}
 187         else
 188           {:error, "You need to specify screen_name or user_id"}
 189         end
 190     end
 191   end
 192
 193   defp parse_int(string, default)
 194
 195   defp parse_int(string, default) when is_binary(string) do
 196     with {n, _} <- Integer.parse(string) do
 197       n
 198     else
 199       _e -> default
 200     end
 201   end
 202
 203   defp parse_int(_, default), do: default
 204
 205   def search(user, %{"q" => query} = params) do
 206     limit = parse_int(params["rpp"], 20)
 207     page = parse_int(params["page"], 1)
 208     offset = (page - 1) * limit
 209
 210     q =
 211       from(
 212         a in Activity,
 213         where: fragment("?->>'type' = 'Create'", a.data),
 214         where: "https://www.w3.org/ns/activitystreams#Public" in a.recipients,
 215         where:
 216           fragment(
 217             "to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)",
 218             a.data,
 219             ^query
 220           ),
 221         limit: ^limit,
 222         offset: ^offset,
 223         # this one isn't indexed so psql won't take the wrong index.
 224         order_by: [desc: :inserted_at]
 225       )
 226
 227     activities = Repo.all(q)
 228   end
 229
 230   defp make_date do
 231     DateTime.utc_now() |> DateTime.to_iso8601()
 232   end
 233
 234   # DEPRECATED mostly, context objects are now created at insertion time.
 235   def context_to_conversation_id(context) do
 236     with %Object{id: id} <- Object.get_cached_by_ap_id(context) do
 237       id
 238     else
 239       _e ->
 240         changeset = Object.context_mapping(context)
 241
 242         case Repo.insert(changeset) do
 243           {:ok, %{id: id}} ->
 244             id
 245
 246           # This should be solved by an upsert, but it seems ecto
 247           # has problems accessing the constraint inside the jsonb.
 248           {:error, _} ->
 249             Object.get_cached_by_ap_id(context).id
 250         end
 251     end
 252   end
 253
 254   def conversation_id_to_context(id) do
 255     with %Object{data: %{"id" => context}} <- Repo.get(Object, id) do
 256       context
 257     else
 258       _e ->
 259         {:error, "No such conversation"}
 260     end
 261   end
 262
 263   def get_external_profile(for_user, uri) do
 264     with %User{} = user <- User.get_or_fetch(uri) do
 265       spawn(fn ->
 266         with url <- user.info["topic"],
 267              {:ok, %{body: body}} <-
 268                @httpoison.get(url, [], follow_redirect: true, timeout: 10000, recv_timeout: 20000) do
 269           OStatus.handle_incoming(body)
 270         end
 271       end)
 272
 273       {:ok, UserView.render("show.json", %{user: user, for: for_user})}
 274     else
 275       _e ->
 276         {:error, "Couldn't find user"}
 277     end
 278   end
 279 end