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diff --git a/lib/pleroma/web/xml.ex b/lib/pleroma/web/xml.ex
index b699446b0..380a80ab8 100644
--- a/lib/pleroma/web/xml.ex
+++ b/lib/pleroma/web/xml.ex
@@ -1,45 +1,48 @@
# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.XML do
require Logger
def string_from_xpath(_, :error), do: nil
def string_from_xpath(xpath, doc) do
try do
{:xmlObj, :string, res} = :xmerl_xpath.string('string(#{xpath})', doc)
res =
res
|> to_string
|> String.trim()
if res == "", do: nil, else: res
catch
_e ->
Logger.debug("Couldn't find xpath #{xpath} in XML doc")
nil
end
end
def parse_document(text) do
try do
{doc, _rest} =
text
|> :binary.bin_to_list()
- |> :xmerl_scan.string(quiet: true)
+ |> :xmerl_scan.string(
+ quiet: true,
+ fetch_fun: fn _, _ -> raise "Resolving external entities not supported" end
+ )
{:ok, doc}
rescue
_e ->
Logger.debug("Couldn't parse XML: #{inspect(text)}")
:error
catch
:exit, _error ->
Logger.debug("Couldn't parse XML: #{inspect(text)}")
:error
end
end
end

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