emoji.ex
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emoji.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.EctoType.ActivityPub.ObjectValidators.Emoji do
	use Ecto.Type

	def type, do: :map

	def cast(data) when is_map(data) do
	has_invalid_emoji? =
	Enum.find(data, fn
	{name, uri} when is_binary(name) and is_binary(uri) ->
	# based on ObjectValidators.Uri.cast()
	case URI.parse(uri) do
	%URI{host: nil} -> true
	%URI{host: ""} -> true
	%URI{scheme: scheme} when scheme in ["https", "http"] -> false
	_ -> true
	end

	{_name, _uri} ->
	true
	end)

	if has_invalid_emoji?, do: :error, else: {:ok, data}
	end

	def cast(_data), do: :error

	def dump(data), do: {:ok, data}

	def load(data), do: {:ok, data}
	end