defmodule Pleroma.Web.TwitterAPI.TwitterAPI do alias Pleroma.{User, Activity, Repo, Object} alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Web.TwitterAPI.Representers.{ActivityRepresenter, UserRepresenter} alias Pleroma.Web.OStatus import Ecto.Query def to_for_user_and_mentions(user, mentions) do default_to = [ User.ap_followers(user), "https://www.w3.org/ns/activitystreams#Public" ] default_to ++ Enum.map(mentions, fn ({_, %{ap_id: ap_id}}) -> ap_id end) end def format_input(text, mentions) do HtmlSanitizeEx.strip_tags(text) |> String.replace("\n", "
") |> add_user_links(mentions) end def attachments_from_ids(ids) do Enum.map(ids || [], fn (media_id) -> Repo.get(Object, media_id).data end) end def get_replied_to_activity(id) when not is_nil(id) do Repo.get(Activity, id) end def get_replied_to_activity(_), do: nil def add_attachments(text, attachments) do attachment_text = Enum.map(attachments, fn (%{"url" => [%{"href" => href} | _]}) -> "#{href}" _ -> "" end) Enum.join([text | attachment_text], "
") end def create_status(%User{} = user, %{"status" => status} = data) do attachments = attachments_from_ids(data["media_ids"]) context = ActivityPub.generate_context_id mentions = parse_mentions(status) content_html = status |> format_input(mentions) |> add_attachments(attachments) to = to_for_user_and_mentions(user, mentions) date = make_date() inReplyTo = get_replied_to_activity(data["in_reply_to_status_id"]) # Wire up reply info. [to, context, object, additional] = if inReplyTo do context = inReplyTo.data["context"] to = to ++ [inReplyTo.data["actor"]] object = %{ "type" => "Note", "to" => to, "content" => content_html, "published" => date, "context" => context, "attachment" => attachments, "actor" => user.ap_id, "inReplyTo" => inReplyTo.data["object"]["id"], "inReplyToStatusId" => inReplyTo.id, } additional = %{} [to, context, object, additional] else object = %{ "type" => "Note", "to" => to, "content" => content_html, "published" => date, "context" => context, "attachment" => attachments, "actor" => user.ap_id } [to, context, object, %{}] end ActivityPub.create(to, user, context, object, additional, data) end def fetch_friend_statuses(user, opts \\ %{}) do ActivityPub.fetch_activities([user.ap_id | user.following], opts) |> activities_to_statuses(%{for: user}) end def fetch_public_statuses(user, opts \\ %{}) do opts = Map.put(opts, "local_only", true) ActivityPub.fetch_public_activities(opts) |> activities_to_statuses(%{for: user}) end def fetch_public_and_external_statuses(user, opts \\ %{}) do ActivityPub.fetch_public_activities(opts) |> activities_to_statuses(%{for: user}) end def fetch_user_statuses(user, opts \\ %{}) do ActivityPub.fetch_activities([], opts) |> activities_to_statuses(%{for: user}) end def fetch_mentions(user, opts \\ %{}) do ActivityPub.fetch_activities([user.ap_id], opts) |> activities_to_statuses(%{for: user}) end def fetch_conversation(user, id) do with context when is_binary(context) <- conversation_id_to_context(id), activities <- ActivityPub.fetch_activities_for_context(context), statuses <- activities |> activities_to_statuses(%{for: user}) do statuses else _e -> [] end end def fetch_status(user, id) do with %Activity{} = activity <- Repo.get(Activity, id) do activity_to_status(activity, %{for: user}) end end def follow(%User{} = follower, params) do with {:ok, %User{} = followed} <- get_user(params), {:ok, follower} <- User.follow(follower, followed), {:ok, activity} <- ActivityPub.follow(follower, followed) do {:ok, follower, followed, activity} else err -> err end end def unfollow(%User{} = follower, params) do with { :ok, %User{} = unfollowed } <- get_user(params), { :ok, follower, follow_activity } <- User.unfollow(follower, unfollowed), { :ok, _activity } <- ActivityPub.insert(%{ "type" => "Undo", "actor" => follower.ap_id, "object" => follow_activity.data["id"], # get latest Follow for these users "published" => make_date() }) do { :ok, follower, unfollowed } else err -> err end end def favorite(%User{} = user, %Activity{data: %{"object" => object}} = activity) do object = Object.get_by_ap_id(object["id"]) {:ok, _like_activity, object} = ActivityPub.like(user, object) new_data = activity.data |> Map.put("object", object.data) status = %{activity | data: new_data} |> activity_to_status(%{for: user}) {:ok, status} end def unfavorite(%User{} = user, %Activity{data: %{"object" => object}} = activity) do object = Object.get_by_ap_id(object["id"]) {:ok, object} = ActivityPub.unlike(user, object) new_data = activity.data |> Map.put("object", object.data) status = %{activity | data: new_data} |> activity_to_status(%{for: user}) {:ok, status} end def retweet(%User{} = user, %Activity{data: %{"object" => object}} = activity) do object = Object.get_by_ap_id(object["id"]) {:ok, _announce_activity, object} = ActivityPub.announce(user, object) new_data = activity.data |> Map.put("object", object.data) status = %{activity | data: new_data} |> activity_to_status(%{for: user}) {:ok, status} end def upload(%Plug.Upload{} = file, format \\ "xml") do {:ok, object} = ActivityPub.upload(file) url = List.first(object.data["url"]) href = url["href"] type = url["mediaType"] case format do "xml" -> # Fake this as good as possible... """ #{object.id} #{object.id} #{object.id} #{href} #{href} """ "json" -> %{ media_id: object.id, media_id_string: "#{object.id}}", media_url: href, size: 0 } |> Poison.encode! end end def parse_mentions(text) do # Modified from https://www.w3.org/TR/html5/forms.html#valid-e-mail-address regex = ~r/@[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@?[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*/ Regex.scan(regex, text) |> List.flatten |> Enum.uniq |> Enum.map(fn ("@" <> match = full_match) -> {full_match, User.get_cached_by_nickname(match)} end) |> Enum.filter(fn ({_match, user}) -> user end) end def add_user_links(text, mentions) do mentions = mentions |> Enum.sort_by(fn ({name, _}) -> -String.length(name) end) |> Enum.map(fn({name, user}) -> {name, user, Ecto.UUID.generate} end) # This replaces the mention with a unique reference first so it doesn't # contain parts of other replaced mentions. There probably is a better # solution for this... step_one = mentions |> Enum.reduce(text, fn ({match, _user, uuid}, text) -> String.replace(text, match, uuid) end) Enum.reduce(mentions, step_one, fn ({match, %User{ap_id: ap_id}, uuid}, text) -> String.replace(text, uuid, "#{match}") end) end def register_user(params) do params = %{ nickname: params["nickname"], name: params["fullname"], bio: params["bio"], email: params["email"], password: params["password"], password_confirmation: params["confirm"] } changeset = User.register_changeset(%User{}, params) with {:ok, user} <- Repo.insert(changeset) do {:ok, UserRepresenter.to_map(user)} else {:error, changeset} -> errors = Ecto.Changeset.traverse_errors(changeset, fn {msg, _opts} -> msg end) |> Poison.encode! {:error, %{error: errors}} end end def get_user(user \\ nil, params) do case params do %{"user_id" => user_id} -> case target = Repo.get(User, user_id) do nil -> {:error, "No user with such user_id"} _ -> {:ok, target} end %{"screen_name" => nickname} -> case target = Repo.get_by(User, nickname: nickname) do nil -> {:error, "No user with such screen_name"} _ -> {:ok, target} end _ -> if user do {:ok, user} else {:error, "You need to specify screen_name or user_id"} end end end defp activities_to_statuses(activities, opts) do Enum.map(activities, fn(activity) -> activity_to_status(activity, opts) end) end # For likes, fetch the liked activity, too. defp activity_to_status(%Activity{data: %{"type" => "Like"}} = activity, opts) do actor = get_in(activity.data, ["actor"]) user = User.get_cached_by_ap_id(actor) [liked_activity] = Activity.all_by_object_ap_id(activity.data["object"]) ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user, liked_activity: liked_activity})) end # For announces, fetch the announced activity and the user. defp activity_to_status(%Activity{data: %{"type" => "Announce"}} = activity, opts) do actor = get_in(activity.data, ["actor"]) user = User.get_cached_by_ap_id(actor) [announced_activity] = Activity.all_by_object_ap_id(activity.data["object"]) announced_actor = User.get_cached_by_ap_id(announced_activity.data["actor"]) ActivityRepresenter.to_map(activity, Map.merge(opts, %{users: [user, announced_actor], announced_activity: announced_activity})) end defp activity_to_status(activity, opts) do actor = get_in(activity.data, ["actor"]) user = User.get_cached_by_ap_id(actor) # mentioned_users = Repo.all(from user in User, where: user.ap_id in ^activity.data["to"]) mentioned_users = Enum.map(activity.data["to"] || [], fn (ap_id) -> User.get_cached_by_ap_id(ap_id) end) |> Enum.filter(&(&1)) ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user, mentioned: mentioned_users})) end defp make_date do DateTime.utc_now() |> DateTime.to_iso8601 end def context_to_conversation_id(context) do with %Object{id: id} <- Object.get_cached_by_ap_id(context) do id else _e -> changeset = Object.context_mapping(context) {:ok, %{id: id}} = Repo.insert(changeset) id end end def conversation_id_to_context(id) do with %Object{data: %{"id" => context}} <- Repo.get(Object, id) do context else _e -> {:error, "No such conversation"} end end def get_external_profile(for_user, uri) do with {:ok, %User{} = user} <- OStatus.find_or_make_user(uri) do {:ok, UserRepresenter.to_map(user, %{for: for_user})} else _e -> {:error, "Couldn't find user"} end end end