# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Filter do
alias Pleroma.User
schema "filters" do
- belongs_to(:user, User, type: Pleroma.FlakeId)
+ belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
field(:filter_id, :integer)
field(:hide, :boolean, default: false)
field(:whole_word, :boolean, default: true)
Repo.one(query)
end
- def get_filters(%User{id: user_id} = _user) do
+ def get_active(query) do
+ from(f in query, where: is_nil(f.expires_at) or f.expires_at > ^NaiveDateTime.utc_now())
+ end
+
+ def get_irreversible(query) do
+ from(f in query, where: f.hide)
+ end
+
+ def get_filters(query \\ __MODULE__, %User{id: user_id}) do
query =
from(
- f in Pleroma.Filter,
+ f in query,
where: f.user_id == ^user_id,
order_by: [desc: :id]
)
|> Repo.delete()
end
- def update(%Pleroma.Filter{} = filter) do
- destination = Map.from_struct(filter)
-
- Pleroma.Filter.get(filter.filter_id, %{id: filter.user_id})
- |> cast(destination, [:phrase, :context, :hide, :expires_at, :whole_word])
+ def update(%Pleroma.Filter{} = filter, params) do
+ filter
+ |> cast(params, [:phrase, :context, :hide, :expires_at, :whole_word])
+ |> validate_required([:phrase, :context])
|> Repo.update()
end
+
+ def compose_regex(user_or_filters, format \\ :postgres)
+
+ def compose_regex(%User{} = user, format) do
+ __MODULE__
+ |> get_active()
+ |> get_irreversible()
+ |> get_filters(user)
+ |> compose_regex(format)
+ end
+
+ def compose_regex([_ | _] = filters, format) do
+ phrases =
+ filters
+ |> Enum.map(& &1.phrase)
+ |> Enum.join("|")
+
+ case format do
+ :postgres ->
+ "\\y(#{phrases})\\y"
+
+ :re ->
+ ~r/\b#{phrases}\b/i
+
+ _ ->
+ nil
+ end
+ end
+
+ def compose_regex(_, _), do: nil
end