2018-12-23 20:04:54 +00:00
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# Pleroma: A lightweight social networking server
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2021-01-13 06:49:20 +00:00
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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2018-12-23 20:04:54 +00:00
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# SPDX-License-Identifier: AGPL-3.0-only
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2017-04-27 07:43:58 +00:00
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defmodule Pleroma.Web.XML do
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2017-06-24 12:35:32 +00:00
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require Logger
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2017-11-19 01:22:07 +00:00
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def string_from_xpath(_, :error), do: nil
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2018-03-30 13:01:53 +00:00
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2017-04-27 07:43:58 +00:00
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def string_from_xpath(xpath, doc) do
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2018-04-03 19:43:59 +00:00
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try do
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2023-08-01 10:43:50 +00:00
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{:xmlObj, :string, res} = :xmerl_xpath.string(~c"string(#{xpath})", doc)
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2017-04-27 07:43:58 +00:00
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2018-04-03 19:43:59 +00:00
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res =
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res
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|> to_string
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|> String.trim()
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2017-04-27 07:43:58 +00:00
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2018-04-03 19:43:59 +00:00
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if res == "", do: nil, else: res
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catch
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2018-05-04 20:59:01 +00:00
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_e ->
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2018-04-03 19:43:59 +00:00
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Logger.debug("Couldn't find xpath #{xpath} in XML doc")
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nil
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end
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2017-04-27 07:43:58 +00:00
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end
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def parse_document(text) do
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2017-06-24 12:35:32 +00:00
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try do
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2018-03-30 13:01:53 +00:00
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{doc, _rest} =
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text
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|> :binary.bin_to_list()
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2023-08-04 21:24:17 +00:00
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|> :xmerl_scan.string(
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quiet: true,
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2023-08-05 12:29:29 +00:00
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allow_entities: false
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2023-08-04 21:24:17 +00:00
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)
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2017-04-27 07:43:58 +00:00
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2021-03-18 10:49:03 +00:00
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{:ok, doc}
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2018-12-09 09:12:48 +00:00
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rescue
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_e ->
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2018-03-19 17:51:31 +00:00
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Logger.debug("Couldn't parse XML: #{inspect(text)}")
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2017-06-24 12:35:32 +00:00
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:error
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2018-12-09 09:12:48 +00:00
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catch
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:exit, _error ->
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2018-06-01 17:55:25 +00:00
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Logger.debug("Couldn't parse XML: #{inspect(text)}")
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:error
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2017-06-24 12:35:32 +00:00
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end
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2017-04-27 07:43:58 +00:00
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end
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end
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