Backport upstream patches to fix regressions in Compose file parsing

0001-imcontext-Fix-a-regression-in-Compose-file-parsing.patch

@@ -0,0 +1,78 @@
+From 22960c5c20cf5a2d4666645f259d376784a11331 Mon Sep 17 00:00:00 2001
+From: Matthias Clasen <mclasen@redhat.com>
+Date: Sun, 14 Feb 2021 11:54:05 -0500
+Subject: [PATCH 1/3] imcontext: Fix a regression in Compose file parsing
+
+We accidentally dropped the handing of # comments.
+Bring it back.
+
+Fixes: #3664
+---
+ gtk/gtkcomposetable.c | 30 ++++++++++++++++++++----------
+ 1 file changed, 20 insertions(+), 10 deletions(-)
+
+diff --git a/gtk/gtkcomposetable.c b/gtk/gtkcomposetable.c
+index 95cb16f9b8..f8657d2660 100644
+--- a/gtk/gtkcomposetable.c
++++ b/gtk/gtkcomposetable.c
+@@ -77,28 +77,40 @@ parse_compose_value (GtkComposeData *compose_data,
+                      const char     *val,
+                      const char     *line)
+ {
+-  char *word;
+   const char *p;
+-  gsize len;
+   GString *value;
+   gunichar ch;
+   char *endp;
+ 
+-  len = strlen (val);
+-  if (val[0] != '"' || val[len - 1] != '"')
++  if (val[0] != '"')
+     {
+       g_warning ("Need to double-quote the value: %s: %s", val, line);
+       goto fail;
+     }
+ 
+-  word = g_strndup (val + 1, len - 2);
+-
+   value = g_string_new ("");
+ 
+-  p = word;
++  p = val + 1;
+   while (*p)
+     {
+-      if (*p == '\\')
++      if (*p == '\0')
++        {
++          g_warning ("Missing closing '\"': %s: %s", val, line);
++          goto fail;
++        }
++      else if (*p == '\"')
++        {
++          p++;
++          while (*p && g_ascii_isspace (*p))
++            p++;
++          if (*p != '\0' && *p != '#')
++            {
++              g_warning ("Garbage after closing '\"': %s: %s", val, line);
++              goto fail;
++            }
++          break;
++        }
++      else if (*p == '\\')
+         {
+           if (p[1] == '"')
+             {
+@@ -148,8 +160,6 @@ parse_compose_value (GtkComposeData *compose_data,
+ 
+   compose_data->value = g_string_free (value, FALSE);
+ 
+-  g_free (word);
+-
+   return TRUE;
+ 
+ fail:
+-- 
+2.29.2
+

0002-imcontext-Be-more-lenient-in-parsing-Compose.patch

@@ -0,0 +1,41 @@
+From d11cde0c1cd01b6db59605fef95b746620011e08 Mon Sep 17 00:00:00 2001
+From: Matthias Clasen <mclasen@redhat.com>
+Date: Sun, 14 Feb 2021 12:56:00 -0500
+Subject: [PATCH 2/3] imcontext: Be more lenient in parsing Compose
+
+X11 allows keysyms to be specified in addition to strings.
+We only support the strings. In the past, we ignored everything
+after the string. Go back to doing that, but issue a warning
+that we've ignored the keysym.
+---
+ gtk/gtkcomposetable.c | 7 ++-----
+ 1 file changed, 2 insertions(+), 5 deletions(-)
+
+diff --git a/gtk/gtkcomposetable.c b/gtk/gtkcomposetable.c
+index f8657d2660..6d88665f8b 100644
+--- a/gtk/gtkcomposetable.c
++++ b/gtk/gtkcomposetable.c
+@@ -84,7 +84,7 @@ parse_compose_value (GtkComposeData *compose_data,
+ 
+   if (val[0] != '"')
+     {
+-      g_warning ("Need to double-quote the value: %s: %s", val, line);
++      g_warning ("Only strings supported after ':': %s: %s", val, line);
+       goto fail;
+     }
+ 
+@@ -104,10 +104,7 @@ parse_compose_value (GtkComposeData *compose_data,
+           while (*p && g_ascii_isspace (*p))
+             p++;
+           if (*p != '\0' && *p != '#')
+-            {
+-              g_warning ("Garbage after closing '\"': %s: %s", val, line);
+-              goto fail;
+-            }
++            g_warning ("Ignoring keysym after string: %s: %s", val, line);
+           break;
+         }
+       else if (*p == '\\')
+-- 
+2.29.2
+

gtk3.spec

@@ -19,13 +19,17 @@
 
 Name: gtk3
 Version: 3.24.25
-Release: 1%{?dist}
+Release: 2%{?dist}
 Summary: GTK+ graphical user interface library
 
 License: LGPLv2+
 URL: http://www.gtk.org
 Source0: http://download.gnome.org/sources/gtk+/3.24/gtk+-%{version}.tar.xz
 
+# Backported from upstream
+Patch1: 0001-imcontext-Fix-a-regression-in-Compose-file-parsing.patch
+Patch2: 0002-imcontext-Be-more-lenient-in-parsing-Compose.patch
+
 BuildRequires: pkgconfig(atk) >= %{atk_version}
 BuildRequires: pkgconfig(atk-bridge-2.0)
 BuildRequires: pkgconfig(glib-2.0) >= %{glib2_version}
@@ -315,6 +319,9 @@ gtk-query-immodules-3.0-%{__isa_bits} --update-cache &>/dev/null || :
 %{_datadir}/installed-tests/
 
 %changelog
+* Mon Feb 15 2021 Kalev Lember <klember@redhat.com> - 3.24.25-2
+- Backport upstream patches to fix regressions in Compose file parsing
+
 * Fri Feb 12 2021 Kalev Lember <klember@redhat.com> - 3.24.25-1
 - Update to 3.24.25