uri_helper.ex
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uri_helper.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Helpers.UriHelper do
	def modify_uri_params(uri, overridden_params, deleted_params \\ []) do
	uri = URI.parse(uri)

	existing_params = URI.query_decoder(uri.query \|\| "") \|> Map.new()
	overridden_params = Map.new(overridden_params, fn {k, v} -> {to_string(k), v} end)
	deleted_params = Enum.map(deleted_params, &to_string/1)

	updated_params =
	existing_params
	\|> Map.merge(overridden_params)
	\|> Map.drop(deleted_params)

	uri
	\|> Map.put(:query, URI.encode_query(updated_params))
	\|> URI.to_string()
	\|> String.replace_suffix("?", "")
	end

	def maybe_add_base("/" <> uri, base), do: Path.join([base, uri])
	def maybe_add_base(uri, _base), do: uri
	end