guix/gnu/packages/patches/webkitgtk-bind-all-fonts.patch
Leo Prikler bc549a276c
gnu: webkitgtk: Expose all font locations to the bubblewrap sandbox.
Fixes <https://issues.guix.gnu.org/41174> and <https://issues.guix.gnu.org/42618>.

The webkitgtk library relied on by Epiphany and others uses bubblewrap to
sandbox its process.  This sandbox was only exposing fonts relative to
XDG_DATA_HOME.  Extend it so that it honors font locations specified via
XDG_DATA_DIRS as well, which is what Guix uses.

* gnu/packages/patches/webkitgtk-bind-all-fonts.patch: Add patch.
* gnu/local.mk: Register it.
* gnu/packages/webkit.scm (webkitgtk)[source]<patches>: Use it.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
2020-08-16 16:07:47 -04:00

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Diff

Add fonts from all XDG_DATA_DIRS, not just XDG_DATA_HOME.
See <http://bugs.gnu.org/41174>.
Author: Leo Prikler <leo.prikler@student.tugraz.at>
Index: webkitgtk-2.28.2/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
===================================================================
--- a/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
+++ b/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
@@ -387,6 +387,7 @@ static void bindFonts(Vector<CString>& args)
const char* homeDir = g_get_home_dir();
const char* dataDir = g_get_user_data_dir();
const char* cacheDir = g_get_user_cache_dir();
+ const char* const * dataDirs = g_get_system_data_dirs();
// Configs can include custom dirs but then we have to parse them...
GUniquePtr<char> fontConfig(g_build_filename(configDir, "fontconfig", nullptr));
@@ -403,6 +404,10 @@ static void bindFonts(Vector<CString>& args)
bindIfExists(args, fontHomeConfigDir.get());
bindIfExists(args, fontData.get());
bindIfExists(args, fontHomeData.get());
+ for (auto dataDir = dataDirs; dataDir != nullptr && *dataDir != nullptr; dataDir++) {
+ GUniquePtr<char> fontDataDir(g_build_filename(*dataDir, "fonts", nullptr));
+ bindIfExists(args, fontDataDir.get());
+ }
bindIfExists(args, "/var/cache/fontconfig"); // Used by Debian.
}