akkoma/lib/pleroma/web/twitter_api/twitter_api.ex
2018-03-30 15:01:53 +02:00

388 lines
11 KiB
Elixir

defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
alias Pleroma.{User, Activity, Repo, Object}
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.TwitterAPI.Representers.ActivityRepresenter
alias Pleroma.Web.TwitterAPI.UserView
alias Pleroma.Web.{OStatus, CommonAPI}
import Ecto.Query
@httpoison Application.get_env(:pleroma, :httpoison)
def create_status(%User{} = user, %{"status" => _} = data) do
CommonAPI.post(user, data)
end
def fetch_friend_statuses(user, opts \\ %{}) do
opts =
opts
|> Map.put("blocking_user", user)
|> Map.put("user", user)
|> Map.put("type", ["Create", "Announce", "Follow", "Like"])
ActivityPub.fetch_activities([user.ap_id | user.following], opts)
|> activities_to_statuses(%{for: user})
end
def fetch_public_statuses(user, opts \\ %{}) do
opts =
opts
|> Map.put("local_only", true)
|> Map.put("blocking_user", user)
|> Map.put("type", ["Create", "Announce", "Follow"])
ActivityPub.fetch_public_activities(opts)
|> activities_to_statuses(%{for: user})
end
def fetch_public_and_external_statuses(user, opts \\ %{}) do
opts =
opts
|> Map.put("blocking_user", user)
|> Map.put("type", ["Create", "Announce", "Follow"])
ActivityPub.fetch_public_activities(opts)
|> activities_to_statuses(%{for: user})
end
def fetch_user_statuses(user, opts \\ %{}) do
opts =
opts
|> Map.put("type", ["Create"])
ActivityPub.fetch_public_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, %{
"blocking_user" => user,
"user" => user
}),
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),
true <- ActivityPub.visible_for_user?(activity, user) 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,
# get latest Follow for these users
"object" => follow_activity.data["id"],
"published" => make_date()
}) do
{:ok, follower, unfollowed}
else
err -> err
end
end
def block(%User{} = blocker, params) do
with {:ok, %User{} = blocked} <- get_user(params),
{:ok, blocker} <- User.block(blocker, blocked) do
{:ok, blocker, blocked}
else
err -> err
end
end
def unblock(%User{} = blocker, params) do
with {:ok, %User{} = blocked} <- get_user(params),
{:ok, blocker} <- User.unblock(blocker, blocked) do
{:ok, blocker, blocked}
else
err -> err
end
end
def repeat(%User{} = user, ap_id_or_id) do
with {:ok, _announce, %{data: %{"id" => id}}} = CommonAPI.repeat(ap_id_or_id, user),
%Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id),
status <- activity_to_status(activity, %{for: user}) do
{:ok, status}
end
end
def fav(%User{} = user, ap_id_or_id) do
with {:ok, _announce, %{data: %{"id" => id}}} = CommonAPI.favorite(ap_id_or_id, user),
%Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id),
status <- activity_to_status(activity, %{for: user}) do
{:ok, status}
end
end
def unfav(%User{} = user, ap_id_or_id) do
with {:ok, %{data: %{"id" => id}}} = CommonAPI.unfavorite(ap_id_or_id, user),
%Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id),
status <- activity_to_status(activity, %{for: user}) do
{:ok, status}
end
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...
"""
<?xml version="1.0" encoding="UTF-8"?>
<rsp stat="ok" xmlns:atom="http://www.w3.org/2005/Atom">
<mediaid>#{object.id}</mediaid>
<media_id>#{object.id}</media_id>
<media_id_string>#{object.id}</media_id_string>
<media_url>#{href}</media_url>
<mediaurl>#{href}</mediaurl>
<atom:link rel="enclosure" href="#{href}" type="#{type}"></atom:link>
</rsp>
"""
"json" ->
%{
media_id: object.id,
media_id_string: "#{object.id}}",
media_url: href,
size: 0
}
|> Jason.encode!()
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, user}
else
{:error, changeset} ->
errors =
Ecto.Changeset.traverse_errors(changeset, fn {msg, _opts} -> msg end)
|> Jason.encode!()
{:error, %{error: errors}}
end
end
def get_by_id_or_nickname(id_or_nickname) do
if !is_integer(id_or_nickname) && :error == Integer.parse(id_or_nickname) do
Repo.get_by(User, nickname: id_or_nickname)
else
Repo.get(User, id_or_nickname)
end
end
def get_user(user \\ nil, params) do
case params do
%{"user_id" => user_id} ->
case target = get_by_id_or_nickname(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 parse_int(string, default)
defp parse_int(string, default) when is_binary(string) do
with {n, _} <- Integer.parse(string) do
n
else
_e -> default
end
end
defp parse_int(_, default), do: default
def search(user, %{"q" => query} = params) do
limit = parse_int(params["rpp"], 20)
page = parse_int(params["page"], 1)
offset = (page - 1) * limit
q =
from(
a in Activity,
where: fragment("?->>'type' = 'Create'", a.data),
where:
fragment(
"to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)",
a.data,
^query
),
limit: ^limit,
offset: ^offset,
# this one isn't indexed so psql won't take the wrong index.
order_by: [desc: :inserted_at]
)
activities = Repo.all(q)
activities_to_statuses(activities, %{for: user})
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{data: %{"type" => "Delete"}} = activity, opts) do
actor = get_in(activity.data, ["actor"])
user = User.get_cached_by_ap_id(actor)
ActivityRepresenter.to_map(activity, Map.merge(opts, %{user: user}))
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.recipients || [], fn ap_id ->
if ap_id do
User.get_cached_by_ap_id(ap_id)
else
nil
end
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)
case Repo.insert(changeset) do
{:ok, %{id: id}} ->
id
# This should be solved by an upsert, but it seems ecto
# has problems accessing the constraint inside the jsonb.
{:error, _} ->
Object.get_cached_by_ap_id(context).id
end
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 %User{} = user <- User.get_or_fetch(uri) do
spawn(fn ->
with url <- user.info["topic"],
{:ok, %{body: body}} <-
@httpoison.get(url, [], follow_redirect: true, timeout: 10000, recv_timeout: 20000) do
OStatus.handle_incoming(body)
end
end)
{:ok, UserView.render("show.json", %{user: user, for: for_user})}
else
_e ->
{:error, "Couldn't find user"}
end
end
end