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
   7   alias Pleroma.Formatter
   8
   9   import Pleroma.Web.TwitterAPI.Utils
  10
  11   @httpoison Application.get_env(:pleroma, :httpoison)
  12
  13   def to_for_user_and_mentions(user, mentions, inReplyTo) do
  14     default_to = [
  15       user.follower_address,
  16       "https://www.w3.org/ns/activitystreams#Public"
  17     ]
  18
  19     to = default_to ++ Enum.map(mentions, fn ({_, %{ap_id: ap_id}}) -> ap_id end)
  20     if inReplyTo do
  21       Enum.uniq([inReplyTo.data["actor"] | to])
  22     else
  23       to
  24     end
  25   end
  26
  27   def get_replied_to_activity(id) when not is_nil(id) do
  28     Repo.get(Activity, id)
  29   end
  30
  31   def get_replied_to_activity(_), do: nil
  32
  33   def create_status(%User{} = user, %{"status" => status} = data) do
  34     with attachments <- attachments_from_ids(data["media_ids"]),
  35          mentions <- Formatter.parse_mentions(status),
  36          inReplyTo <- get_replied_to_activity(data["in_reply_to_status_id"]),
  37          to <- to_for_user_and_mentions(user, mentions, inReplyTo),
  38          content_html <- make_content_html(status, mentions, attachments),
  39          context <- make_context(inReplyTo),
  40          tags <- Formatter.parse_tags(status),
  41          object <- make_note_data(user.ap_id, to, context, content_html, attachments, inReplyTo, tags) do
  42       ActivityPub.create(to, user, context, object)
  43     end
  44   end
  45
  46   def fetch_friend_statuses(user, opts \\ %{}) do
  47     ActivityPub.fetch_activities([user.ap_id | user.following], opts)
  48     |> activities_to_statuses(%{for: user})
  49   end
  50
  51   def fetch_public_statuses(user, opts \\ %{}) do
  52     opts = Map.put(opts, "local_only", true)
  53     ActivityPub.fetch_public_activities(opts)
  54     |> activities_to_statuses(%{for: user})
  55   end
  56
  57   def fetch_public_and_external_statuses(user, opts \\ %{}) do
  58     ActivityPub.fetch_public_activities(opts)
  59     |> activities_to_statuses(%{for: user})
  60   end
  61
  62   def fetch_user_statuses(user, opts \\ %{}) do
  63     ActivityPub.fetch_activities([], opts)
  64     |> activities_to_statuses(%{for: user})
  65   end
  66
  67   def fetch_mentions(user, opts \\ %{}) do
  68     ActivityPub.fetch_activities([user.ap_id], opts)
  69     |> activities_to_statuses(%{for: user})
  70   end
  71
  72   def fetch_conversation(user, id) do
  73     with context when is_binary(context) <- conversation_id_to_context(id),
  74          activities <- ActivityPub.fetch_activities_for_context(context),
  75          statuses <- activities |> activities_to_statuses(%{for: user})
  76     do
  77       statuses
  78     else _e ->
  79       []
  80     end
  81   end
  82
  83   def fetch_status(user, id) do
  84     with %Activity{} = activity <- Repo.get(Activity, id) do
  85       activity_to_status(activity, %{for: user})
  86     end
  87   end
  88
  89   def follow(%User{} = follower, params) do
  90     with {:ok, %User{} = followed} <- get_user(params),
  91          {:ok, follower} <- User.follow(follower, followed),
  92          {:ok, activity} <- ActivityPub.follow(follower, followed)
  93     do
  94       {:ok, follower, followed, activity}
  95     else
  96       err -> err
  97     end
  98   end
  99
 100   def unfollow(%User{} = follower, params) do
 101     with { :ok, %User{} = unfollowed } <- get_user(params),
 102          { :ok, follower, follow_activity } <- User.unfollow(follower, unfollowed),
 103          { :ok, _activity } <- ActivityPub.insert(%{
 104            "type" => "Undo",
 105            "actor" => follower.ap_id,
 106            "object" => follow_activity.data["id"], # get latest Follow for these users
 107            "published" => make_date()
 108          })
 109     do
 110       { :ok, follower, unfollowed }
 111     else
 112       err -> err
 113     end
 114   end
 115
 116   def favorite(%User{} = user, %Activity{data: %{"object" => object}} = activity) do
 117     object = Object.get_by_ap_id(object["id"])
 118
 119     {:ok, _like_activity, object} = ActivityPub.like(user, object)
 120     new_data = activity.data
 121     |> Map.put("object", object.data)
 122
 123     status = %{activity | data: new_data}
 124     |> activity_to_status(%{for: user})
 125
 126     {:ok, status}
 127   end
 128
 129   def unfavorite(%User{} = user, %Activity{data: %{"object" => object}} = activity) do
 130     object = Object.get_by_ap_id(object["id"])
 131
 132     {:ok, object} = ActivityPub.unlike(user, object)
 133     new_data = activity.data
 134     |> Map.put("object", object.data)
 135
 136     status = %{activity | data: new_data}
 137     |> activity_to_status(%{for: user})
 138
 139     {:ok, status}
 140   end
 141
 142   def retweet(%User{} = user, %Activity{data: %{"object" => object}} = activity) do
 143     object = Object.get_by_ap_id(object["id"])
 144
 145     {:ok, _announce_activity, object} = ActivityPub.announce(user, object)
 146     new_data = activity.data
 147     |> Map.put("object", object.data)
 148
 149     status = %{activity | data: new_data}
 150     |> activity_to_status(%{for: user})
 151
 152     {:ok, status}
 153   end
 154
 155   def upload(%Plug.Upload{} = file, format \\ "xml") do
 156     {:ok, object} = ActivityPub.upload(file)
 157
 158     url = List.first(object.data["url"])
 159     href = url["href"]
 160     type = url["mediaType"]
 161
 162     case format do
 163       "xml" ->
 164         # Fake this as good as possible...
 165         """
 166         <?xml version="1.0" encoding="UTF-8"?>
 167         <rsp stat="ok" xmlns:atom="http://www.w3.org/2005/Atom">
 168         <mediaid>#{object.id}</mediaid>
 169         <media_id>#{object.id}</media_id>
 170         <media_id_string>#{object.id}</media_id_string>
 171         <media_url>#{href}</media_url>
 172         <mediaurl>#{href}</mediaurl>
 173         <atom:link rel="enclosure" href="#{href}" type="#{type}"></atom:link>
 174         </rsp>
 175         """
 176       "json" ->
 177         %{
 178           media_id: object.id,
 179           media_id_string: "#{object.id}}",
 180           media_url: href,
 181           size: 0
 182         } |> Poison.encode!
 183     end
 184   end
 185
 186   def register_user(params) do
 187     params = %{
 188       nickname: params["nickname"],
 189       name: params["fullname"],
 190       bio: params["bio"],
 191       email: params["email"],
 192       password: params["password"],
 193       password_confirmation: params["confirm"]
 194     }
 195
 196     changeset = User.register_changeset(%User{}, params)
 197
 198     with {:ok, user} <- Repo.insert(changeset) do
 199       {:ok, user}
 200     else
 201       {:error, changeset} ->
 202         errors = Ecto.Changeset.traverse_errors(changeset, fn {msg, _opts} -> msg end)
 203       |> Poison.encode!
 204       {:error, %{error: errors}}
 205     end
 206   end
 207
 208   def get_by_id_or_nickname(id_or_nickname) do
 209     if !is_integer(id_or_nickname) && :error == Integer.parse(id_or_nickname) do
 210       Repo.get_by(User, nickname: id_or_nickname)
 211     else
 212       Repo.get(User, id_or_nickname)
 213     end
 214   end
 215
 216   def get_user(user \\ nil, params) do
 217     case params do
 218       %{"user_id" => user_id} ->
 219         case target = get_by_id_or_nickname(user_id) do
 220           nil ->
 221             {:error, "No user with such user_id"}
 222           _ ->
 223             {:ok, target}
 224         end
 225       %{"screen_name" => nickname} ->
 226         case target = Repo.get_by(User, nickname: nickname) do
 227           nil ->
 228             {:error, "No user with such screen_name"}
 229           _ ->
 230             {:ok, target}
 231         end
 232       _ ->
 233         if user do
 234           {:ok, user}
 235         else
 236           {:error, "You need to specify screen_name or user_id"}
 237         end
 238     end
 239   end
 240
 241   defp activities_to_statuses(activities, opts) do
 242     Enum.map(activities, fn(activity) ->
 243       activity_to_status(activity, opts)
 244     end)
 245   end
 246
 247   # For likes, fetch the liked activity, too.
 248   defp activity_to_status(%Activity{data: %{"type" => "Like"}} = activity, opts) do
 249     actor = get_in(activity.data, ["actor"])
 250     user = User.get_cached_by_ap_id(actor)
 251     [liked_activity] = Activity.all_by_object_ap_id(activity.data["object"])
 252
 253     ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user, liked_activity: liked_activity}))
 254   end
 255
 256   # For announces, fetch the announced activity and the user.
 257   defp activity_to_status(%Activity{data: %{"type" => "Announce"}} = activity, opts) do
 258     actor = get_in(activity.data, ["actor"])
 259     user = User.get_cached_by_ap_id(actor)
 260     [announced_activity] = Activity.all_by_object_ap_id(activity.data["object"])
 261     announced_actor = User.get_cached_by_ap_id(announced_activity.data["actor"])
 262
 263     ActivityRepresenter.to_map(activity, Map.merge(opts, %{users: [user, announced_actor], announced_activity: announced_activity}))
 264   end
 265
 266   defp activity_to_status(activity, opts) do
 267     actor = get_in(activity.data, ["actor"])
 268     user = User.get_cached_by_ap_id(actor)
 269     # mentioned_users = Repo.all(from user in User, where: user.ap_id in ^activity.data["to"])
 270     mentioned_users = Enum.map(activity.data["to"] || [], fn (ap_id) ->
 271       User.get_cached_by_ap_id(ap_id)
 272     end)
 273     |> Enum.filter(&(&1))
 274
 275     ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user, mentioned: mentioned_users}))
 276   end
 277
 278   defp make_date do
 279     DateTime.utc_now() |> DateTime.to_iso8601
 280   end
 281
 282   def context_to_conversation_id(context) do
 283     with %Object{id: id} <- Object.get_cached_by_ap_id(context) do
 284       id
 285       else _e ->
 286         changeset = Object.context_mapping(context)
 287         case Repo.insert(changeset) do
 288           {:ok, %{id: id}} -> id
 289           # This should be solved by an upsert, but it seems ecto
 290           # has problems accessing the constraint inside the jsonb.
 291           {:error, _} -> Object.get_cached_by_ap_id(context).id
 292         end
 293     end
 294   end
 295
 296   def conversation_id_to_context(id) do
 297     with %Object{data: %{"id" => context}} <- Repo.get(Object, id) do
 298       context
 299     else _e ->
 300       {:error, "No such conversation"}
 301     end
 302   end
 303
 304   def get_external_profile(for_user, uri) do
 305     with {:ok, %User{} = user} <- OStatus.find_or_make_user(uri) do
 306       with url <- user.info["topic"],
 307            {:ok, %{body: body}} <- @httpoison.get(url, [], follow_redirect: true, timeout: 10000, recv_timeout: 20000) do
 308         OStatus.handle_incoming(body)
 309       end
 310       {:ok, UserView.render("show.json", %{user: user, for: for_user})}
 311     else _e ->
 312         {:error, "Couldn't find user"}
 313     end
 314   end
 315 end