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