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 fetch_friend_statuses(user, opts \\ %{}) do
  16     opts = Map.put(opts, "blocking_user", user)
  17     ActivityPub.fetch_activities([user.ap_id | user.following], opts)
  18     |> activities_to_statuses(%{for: user})
  19   end
  20
  21   def fetch_public_statuses(user, opts \\ %{}) do
  22     opts = Map.put(opts, "local_only", true)
  23     opts = Map.put(opts, "blocking_user", user)
  24     ActivityPub.fetch_public_activities(opts)
  25     |> activities_to_statuses(%{for: user})
  26   end
  27
  28   def fetch_public_and_external_statuses(user, opts \\ %{}) do
  29     opts = Map.put(opts, "blocking_user", user)
  30     ActivityPub.fetch_public_activities(opts)
  31     |> activities_to_statuses(%{for: user})
  32   end
  33
  34   def fetch_user_statuses(user, opts \\ %{}) do
  35     ActivityPub.fetch_activities([], opts)
  36     |> activities_to_statuses(%{for: user})
  37   end
  38
  39   def fetch_mentions(user, opts \\ %{}) do
  40     ActivityPub.fetch_activities([user.ap_id], opts)
  41     |> activities_to_statuses(%{for: user})
  42   end
  43
  44   def fetch_conversation(user, id) do
  45     with context when is_binary(context) <- conversation_id_to_context(id),
  46          activities <- ActivityPub.fetch_activities_for_context(context, %{"blocking_user" => user}),
  47          statuses <- activities |> activities_to_statuses(%{for: user})
  48     do
  49       statuses
  50     else _e ->
  51       []
  52     end
  53   end
  54
  55   def fetch_status(user, id) do
  56     with %Activity{} = activity <- Repo.get(Activity, id) do
  57       activity_to_status(activity, %{for: user})
  58     end
  59   end
  60
  61   def follow(%User{} = follower, params) do
  62     with {:ok, %User{} = followed} <- get_user(params),
  63          {:ok, follower} <- User.follow(follower, followed),
  64          {:ok, activity} <- ActivityPub.follow(follower, followed)
  65     do
  66       {:ok, follower, followed, activity}
  67     else
  68       err -> err
  69     end
  70   end
  71
  72   def unfollow(%User{} = follower, params) do
  73     with { :ok, %User{} = unfollowed } <- get_user(params),
  74          { :ok, follower, follow_activity } <- User.unfollow(follower, unfollowed),
  75          { :ok, _activity } <- ActivityPub.insert(%{
  76            "type" => "Undo",
  77            "actor" => follower.ap_id,
  78            "object" => follow_activity.data["id"], # get latest Follow for these users
  79            "published" => make_date()
  80          })
  81     do
  82       { :ok, follower, unfollowed }
  83     else
  84       err -> err
  85     end
  86   end
  87
  88   def block(%User{} = blocker, params) do
  89     with {:ok, %User{} = blocked} <- get_user(params),
  90          {:ok, blocker} <- User.block(blocker, blocked)
  91     do
  92       {:ok, blocker, blocked}
  93     else
  94       err -> err
  95     end
  96   end
  97
  98   def unblock(%User{} = blocker, params) do
  99     with {:ok, %User{} = blocked} <- get_user(params),
 100          {:ok, blocker} <- User.unblock(blocker, blocked)
 101     do
 102       {:ok, blocker, blocked}
 103     else
 104       err -> err
 105     end
 106   end
 107
 108   def repeat(%User{} = user, ap_id_or_id) do
 109     with {:ok, _announce, %{data: %{"id" => id}}} = CommonAPI.repeat(ap_id_or_id, user),
 110          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id),
 111          status <- activity_to_status(activity, %{for: user}) do
 112       {:ok, status}
 113     end
 114   end
 115
 116   def fav(%User{} = user, ap_id_or_id) do
 117     with {:ok, _announce, %{data: %{"id" => id}}} = CommonAPI.favorite(ap_id_or_id, user),
 118          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id),
 119          status <- activity_to_status(activity, %{for: user}) do
 120       {:ok, status}
 121     end
 122   end
 123
 124   def unfav(%User{} = user, ap_id_or_id) do
 125     with {:ok, %{data: %{"id" => id}}} = CommonAPI.unfavorite(ap_id_or_id, user),
 126          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id),
 127          status <- activity_to_status(activity, %{for: user}) do
 128       {:ok, status}
 129     end
 130   end
 131
 132   def upload(%Plug.Upload{} = file, format \\ "xml") do
 133     {:ok, object} = ActivityPub.upload(file)
 134
 135     url = List.first(object.data["url"])
 136     href = url["href"]
 137     type = url["mediaType"]
 138
 139     case format do
 140       "xml" ->
 141         # Fake this as good as possible...
 142         """
 143         <?xml version="1.0" encoding="UTF-8"?>
 144         <rsp stat="ok" xmlns:atom="http://www.w3.org/2005/Atom">
 145         <mediaid>#{object.id}</mediaid>
 146         <media_id>#{object.id}</media_id>
 147         <media_id_string>#{object.id}</media_id_string>
 148         <media_url>#{href}</media_url>
 149         <mediaurl>#{href}</mediaurl>
 150         <atom:link rel="enclosure" href="#{href}" type="#{type}"></atom:link>
 151         </rsp>
 152         """
 153       "json" ->
 154         %{
 155           media_id: object.id,
 156           media_id_string: "#{object.id}}",
 157           media_url: href,
 158           size: 0
 159         } |> Poison.encode!
 160     end
 161   end
 162
 163   def register_user(params) do
 164     params = %{
 165       nickname: params["nickname"],
 166       name: params["fullname"],
 167       bio: params["bio"],
 168       email: params["email"],
 169       password: params["password"],
 170       password_confirmation: params["confirm"]
 171     }
 172
 173     changeset = User.register_changeset(%User{}, params)
 174
 175     with {:ok, user} <- Repo.insert(changeset) do
 176       {:ok, user}
 177     else
 178       {:error, changeset} ->
 179         errors = Ecto.Changeset.traverse_errors(changeset, fn {msg, _opts} -> msg end)
 180       |> Poison.encode!
 181       {:error, %{error: errors}}
 182     end
 183   end
 184
 185   def get_by_id_or_nickname(id_or_nickname) do
 186     if !is_integer(id_or_nickname) && :error == Integer.parse(id_or_nickname) do
 187       Repo.get_by(User, nickname: id_or_nickname)
 188     else
 189       Repo.get(User, id_or_nickname)
 190     end
 191   end
 192
 193   def get_user(user \\ nil, params) do
 194     case params do
 195       %{"user_id" => user_id} ->
 196         case target = get_by_id_or_nickname(user_id) do
 197           nil ->
 198             {:error, "No user with such user_id"}
 199           _ ->
 200             {:ok, target}
 201         end
 202       %{"screen_name" => nickname} ->
 203         case target = Repo.get_by(User, nickname: nickname) do
 204           nil ->
 205             {:error, "No user with such screen_name"}
 206           _ ->
 207             {:ok, target}
 208         end
 209       _ ->
 210         if user do
 211           {:ok, user}
 212         else
 213           {:error, "You need to specify screen_name or user_id"}
 214         end
 215     end
 216   end
 217
 218   defp parse_int(string, default)
 219   defp parse_int(string, default) when is_binary(string) do
 220     with {n, _} <- Integer.parse(string) do
 221       n
 222     else
 223       _e -> default
 224     end
 225   end
 226   defp parse_int(_, default), do: default
 227
 228   def search(user, %{"q" => query} = params) do
 229     limit = parse_int(params["rpp"], 20)
 230     page = parse_int(params["page"], 1)
 231     offset = (page - 1) * limit
 232
 233     q = from a in Activity,
 234       where: fragment("?->>'type' = 'Create'", a.data),
 235       where: fragment("to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)", a.data, ^query),
 236       limit: ^limit,
 237       offset: ^offset,
 238       order_by: [desc: :inserted_at] # this one isn't indexed so psql won't take the wrong index.
 239
 240     activities = Repo.all(q)
 241     activities_to_statuses(activities, %{for: user})
 242   end
 243
 244   defp activities_to_statuses(activities, opts) do
 245     Enum.map(activities, fn(activity) ->
 246       activity_to_status(activity, opts)
 247     end)
 248   end
 249
 250   # For likes, fetch the liked activity, too.
 251   defp activity_to_status(%Activity{data: %{"type" => "Like"}} = activity, opts) do
 252     actor = get_in(activity.data, ["actor"])
 253     user = User.get_cached_by_ap_id(actor)
 254     [liked_activity] = Activity.all_by_object_ap_id(activity.data["object"])
 255
 256     ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user, liked_activity: liked_activity}))
 257   end
 258
 259   # For announces, fetch the announced activity and the user.
 260   defp activity_to_status(%Activity{data: %{"type" => "Announce"}} = activity, opts) do
 261     actor = get_in(activity.data, ["actor"])
 262     user = User.get_cached_by_ap_id(actor)
 263     [announced_activity] = Activity.all_by_object_ap_id(activity.data["object"])
 264     announced_actor = User.get_cached_by_ap_id(announced_activity.data["actor"])
 265
 266     ActivityRepresenter.to_map(activity, Map.merge(opts, %{users: [user, announced_actor], announced_activity: announced_activity}))
 267   end
 268
 269   defp activity_to_status(%Activity{data: %{"type" => "Delete"}} = activity, opts) do
 270     actor = get_in(activity.data, ["actor"])
 271     user = User.get_cached_by_ap_id(actor)
 272     ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user}))
 273   end
 274
 275   defp activity_to_status(activity, opts) do
 276     actor = get_in(activity.data, ["actor"])
 277     user = User.get_cached_by_ap_id(actor)
 278     # mentioned_users = Repo.all(from user in User, where: user.ap_id in ^activity.data["to"])
 279     mentioned_users = Enum.map(activity.data["to"] || [], fn (ap_id) ->
 280       if ap_id do
 281         User.get_cached_by_ap_id(ap_id)
 282       else
 283         nil
 284       end
 285     end)
 286     |> Enum.filter(&(&1))
 287
 288     ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user, mentioned: mentioned_users}))
 289   end
 290
 291   defp make_date do
 292     DateTime.utc_now() |> DateTime.to_iso8601
 293   end
 294
 295   def context_to_conversation_id(context) do
 296     with %Object{id: id} <- Object.get_cached_by_ap_id(context) do
 297       id
 298       else _e ->
 299         changeset = Object.context_mapping(context)
 300         case Repo.insert(changeset) do
 301           {:ok, %{id: id}} -> id
 302           # This should be solved by an upsert, but it seems ecto
 303           # has problems accessing the constraint inside the jsonb.
 304           {:error, _} -> Object.get_cached_by_ap_id(context).id
 305         end
 306     end
 307   end
 308
 309   def conversation_id_to_context(id) do
 310     with %Object{data: %{"id" => context}} <- Repo.get(Object, id) do
 311       context
 312     else _e ->
 313       {:error, "No such conversation"}
 314     end
 315   end
 316
 317   def get_external_profile(for_user, uri) do
 318     with {:ok, %User{} = user} <- OStatus.find_or_make_user(uri) do
 319       with url <- user.info["topic"],
 320            {:ok, %{body: body}} <- @httpoison.get(url, [], follow_redirect: true, timeout: 10000, recv_timeout: 20000) do
 321         OStatus.handle_incoming(body)
 322       end
 323       {:ok, UserView.render("show.json", %{user: user, for: for_user})}
 324     else _e ->
 325         {:error, "Couldn't find user"}
 326     end
 327   end
 328 end