akkoma/lib/pleroma/web/xml.ex

49 lines
1 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 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(~c"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,
allow_entities: false
)
{: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