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fix: hex-encode Windows notification icon temp filenames (#50454)

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* fix: hex-encode Windows notification icon temp filenames

NotificationPresenterWin was using SHA1HashString(origin.spec()) directly
as the basename for the temporary PNG written for toast icons.

SHA1HashString returns raw digest bytes, so the generated filename could
contain invalid path characters on Windows. That caused WriteFile to fail
when saving notification icons, which left toast XML without the expected
icon path.

Hex-encode the digest before appending .png so the temporary filename is
filesystem-safe while keeping deterministic naming for a given origin.

* Update shell/browser/notifications/win/notification_presenter_win.cc

Co-authored-by: Robo <hop2deep@gmail.com>

---------

Co-authored-by: Robo <hop2deep@gmail.com>
This commit is contained in:
Shelley Vohr
2026-03-25 17:29:58 +01:00
committed by GitHub
parent 02d4101ca3
commit ec3a18d438
1 changed files with 2 additions and 1 deletions
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3
shell/browser/notifications/win/notification_presenter_win.cc
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@@ -72,7 +72,8 @@ std::wstring NotificationPresenterWin::SaveIconToFilesystem(
std::string filename;
if (origin.is_valid()) {
filename = base::SHA1HashString(origin.spec()) + ".png";
const auto hash = base::SHA1HashString(origin.spec());
filename = base::HexEncode(hash) + ".png";
} else {
const int64_t now_usec = base::Time::Now().since_origin().InMicroseconds();
filename = base::NumberToString(now_usec) + ".png";