LibWeb+LibXML: Make Listener::set_source(ByteString) fallible

`set_source` takes a ByteString but the implementation might require a specific encoding. Make it fallible so that we don't need to crash in the case of invalid UTF-8 or similar. The test includes a sequence of invalid UTF-8 bytes that crash the browser without this change.
Author: https://github.com/rmg-x Commit: b9554038ff Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6353 Reviewed-by: https://github.com/alimpfard ✅ Reviewed-by: https://github.com/trflynn89
2025-12-08 06:09:58 +00:00 · 2025-09-30 10:53:41 -05:00 · 2025-09-30 10:53:41 -05:00 · b9554038ff · 2025-10-02 00:27:16 +00:00
commit b9554038ff
parent 2397ae4af5
7 changed files with 25 additions and 5 deletions
--- a/Tests/LibWeb/Text/data/invalid_utf8_corrupt.svg
+++ b/Tests/LibWeb/Text/data/invalid_utf8_corrupt.svg
@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100">À¯õ</svg>
--- a/Tests/LibWeb/Text/expected/corrupt-svg-favicon.txt
+++ b/Tests/LibWeb/Text/expected/corrupt-svg-favicon.txt
@ -0,0 +1 @@
+PASS (didn't crash)
--- a/Tests/LibWeb/Text/input/corrupt-svg-favicon.html
+++ b/Tests/LibWeb/Text/input/corrupt-svg-favicon.html
@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <link rel="icon" href="../data/invalid_utf8_corrupt.svg" type="image/svg+xml">
+</head>
+<script src="include.js"></script>
+<script>
+    test(() => {
+        println("PASS (didn't crash)")
+    });
+</script>
+</html>
				`@ -0,0 +1 @@`
				`<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100">À¯õ</svg>`