Add unit test for external entity loading

This commit is contained in:
FloatingGhost 2023-08-04 22:24:32 +01:00 committed by Haelwenn (lanodan) Monnier
parent ca0859b90f
commit 307692cee8
3 changed files with 36 additions and 0 deletions

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE foo [ <!ENTITY xxe SYSTEM "file:///etc/passwd"> ]>
<stockCheck><productId>&xxe;</productId></stockCheck>

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@ -180,5 +180,28 @@ test "respects xml content-type" do
{:ok, _data} = WebFinger.finger("pekorino@pawoo.net")
end
test "refuses to process XML remote entities" do
Tesla.Mock.mock(fn
%{
url: "https://pawoo.net/.well-known/webfinger?resource=acct:pekorino@pawoo.net"
} ->
{:ok,
%Tesla.Env{
status: 200,
body: File.read!("test/fixtures/xml_external_entities.xml"),
headers: [{"content-type", "application/xrd+xml"}]
}}
%{url: "https://pawoo.net/.well-known/host-meta"} ->
{:ok,
%Tesla.Env{
status: 200,
body: File.read!("test/fixtures/tesla_mock/pawoo.net_host_meta")
}}
end)
assert :error = WebFinger.finger("pekorino@pawoo.net")
end
end
end

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defmodule Pleroma.Web.XMLTest do
use Pleroma.DataCase, async: true
alias Pleroma.Web.XML
test "refuses to load external entities from XML" do
data = File.read!("test/fixtures/xml_external_entities.xml")
assert(:error == XML.parse_document(data))
end
end