76 lines
1.9 KiB
Elixir
76 lines
1.9 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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# NOTES
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# - Can probably be a generic create validator
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# - doesn't embed, will only get the object id
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defmodule Pleroma.Web.ActivityPub.ObjectValidators.CreateChatMessageValidator do
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use Ecto.Schema
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alias Pleroma.Object
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alias Pleroma.Web.ActivityPub.ObjectValidators.Types
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import Ecto.Changeset
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@primary_key false
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embedded_schema do
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field(:id, Types.ObjectID, primary_key: true)
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field(:actor, Types.ObjectID)
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field(:type, :string)
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field(:to, Types.Recipients, default: [])
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field(:object, Types.ObjectID)
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end
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def cast_and_apply(data) do
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data
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|> cast_data
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|> apply_action(:insert)
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end
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def cast_data(data) do
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cast(%__MODULE__{}, data, __schema__(:fields))
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end
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def cast_and_validate(data, meta \\ []) do
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cast_data(data)
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|> validate_data(meta)
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end
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def validate_data(cng, meta \\ []) do
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cng
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|> validate_required([:id, :actor, :to, :type, :object])
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|> validate_inclusion(:type, ["Create"])
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|> validate_recipients_match(meta)
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|> validate_object_nonexistence()
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end
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def validate_object_nonexistence(cng) do
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cng
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|> validate_change(:object, fn :object, object_id ->
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if Object.get_cached_by_ap_id(object_id) do
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[{:object, "The object to create already exists"}]
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else
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[]
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end
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end)
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end
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def validate_recipients_match(cng, meta) do
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object_recipients = meta[:object_data]["to"] || []
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cng
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|> validate_change(:to, fn :to, recipients ->
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activity_set = MapSet.new(recipients)
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object_set = MapSet.new(object_recipients)
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if MapSet.equal?(activity_set, object_set) do
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[]
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else
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[{:to, "Recipients don't match with object recipients"}]
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end
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end)
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end
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end
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