98 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
	
		
			2.3 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Filter do
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  use Ecto.Schema
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  import Ecto.Changeset
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  import Ecto.Query
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  alias Pleroma.Repo
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  alias Pleroma.User
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  schema "filters" do
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    belongs_to(:user, User, type: Pleroma.FlakeId)
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    field(:filter_id, :integer)
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    field(:hide, :boolean, default: false)
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    field(:whole_word, :boolean, default: true)
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    field(:phrase, :string)
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    field(:context, {:array, :string})
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    field(:expires_at, :utc_datetime)
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    timestamps()
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  end
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  def get(id, %{id: user_id} = _user) do
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    query =
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      from(
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        f in Pleroma.Filter,
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        where: f.filter_id == ^id,
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        where: f.user_id == ^user_id
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      )
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    Repo.one(query)
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  end
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  def get_filters(%User{id: user_id} = _user) do
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    query =
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      from(
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        f in Pleroma.Filter,
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        where: f.user_id == ^user_id
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      )
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    Repo.all(query)
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  end
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  def create(%Pleroma.Filter{user_id: user_id, filter_id: nil} = filter) do
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    # If filter_id wasn't given, use the max filter_id for this user plus 1.
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    # XXX This could result in a race condition if a user tries to add two
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    # different filters for their account from two different clients at the
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    # same time, but that should be unlikely.
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    max_id_query =
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      from(
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        f in Pleroma.Filter,
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        where: f.user_id == ^user_id,
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        select: max(f.filter_id)
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      )
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    filter_id =
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      case Repo.one(max_id_query) do
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        # Start allocating from 1
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        nil ->
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          1
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        max_id ->
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          max_id + 1
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      end
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    filter
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    |> Map.put(:filter_id, filter_id)
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    |> Repo.insert()
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  end
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  def create(%Pleroma.Filter{} = filter) do
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    Repo.insert(filter)
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  end
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  def delete(%Pleroma.Filter{id: filter_key} = filter) when is_number(filter_key) do
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    Repo.delete(filter)
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  end
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  def delete(%Pleroma.Filter{id: filter_key} = filter) when is_nil(filter_key) do
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    %Pleroma.Filter{id: id} = get(filter.filter_id, %{id: filter.user_id})
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    filter
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    |> Map.put(:id, id)
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    |> Repo.delete()
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  end
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  def update(%Pleroma.Filter{} = filter) do
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    destination = Map.from_struct(filter)
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    Pleroma.Filter.get(filter.filter_id, %{id: filter.user_id})
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    |> cast(destination, [:phrase, :context, :hide, :expires_at, :whole_word])
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    |> Repo.update()
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  end
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end
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