[PATCH v2 0/1] MR8425: winemenubuilder: Quote Exec arguments in desktop entries.

[Bradan Fleming (＠bradan)]

The Desktop Entry Specification does not require restricted characters
in the Exec field to be escaped, but it requires them to be quoted in
their entirety.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57329

This change allows Wine's desktop entries to work with application launchers that use stricter parsing such as [fuzzel](https://codeberg.org/dnkl/fuzzel/issues/445) and [albert](https://github.com/albertlauncher/albert/issues/1486). I've tested the updated entries with GIO and fuzzel.

--
  v2: winemenubuilder: Quote Exec arguments in desktop entries.

https://gitlab.winehq.org/wine/wine/-/merge_requests/8425

[PATCH v2 1/1] winemenubuilder: Quote Exec arguments in desktop entries.

[Bradan Fleming]

From: Bradan Fleming

The Desktop Entry Specification does not require restricted characters
in the Exec field to be escaped, but it requires them to be quoted in
their entirety.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57329
---
 programs/winemenubuilder/winemenubuilder.c | 29 ++++++----------------
 1 file changed, 7 insertions(+), 22 deletions(-)

diff --git a/programs/winemenubuilder/winemenubuilder.c b/programs/winemenubuilder/winemenubuilder.c
index 054f81e12f1..e881408ef9f 100644
--- a/programs/winemenubuilder/winemenubuilder.c
+++ b/programs/winemenubuilder/winemenubuilder.c
@@ -1206,7 +1206,7 @@ static DWORD register_menus_entry(const WCHAR *menu_file, const WCHAR *windows_f
     return ret;
 }

-/* This escapes reserved characters in .desktop files' Exec keys. */
+/* This escapes required characters in .desktop files' Exec keys. */
 static LPSTR escape(LPCWSTR arg)
 {
     int i, j;
@@ -1224,24 +1224,9 @@ static LPSTR escape(LPCWSTR arg)
             escaped_string[j++] = '\';
             escaped_string[j++] = '\';
             break;
-        case ' ':
-        case '\t':
-        case '\n':
         case '"':
-        case ''':
-        case '>':
-        case '<':
-        case '~':
-        case '|':
-        case '&':
-        case ';':
-        case '$':
-        case '*':
-        case '?':
-        case '#':
-        case '(':
-        case ')':
         case '`':
+        case '$':
             escaped_string[j++] = '\';
             escaped_string[j++] = '\';
             /* fall through */
@@ -1288,11 +1273,11 @@ static BOOL write_desktop_entry(const WCHAR *link, const WCHAR *location, const
     if (prefix)
     {
         char *path = wine_get_unix_file_name( prefix );
-        fprintf(file, "env WINEPREFIX="%s" ", path);
+        fprintf(file, "env "WINEPREFIX=%s" ", path);
         heap_free( path );
     }
-    fprintf(file, "wine %s", escape(path));
-    if (args) fprintf(file, " %s", escape(args) );
+    fprintf(file, "wine "%s"", escape(path));
+    if (args) fprintf(file, " "%s"", escape(args) );
     fputc( '\n', file );
     fprintf(file, "Type=Application\n");
     fprintf(file, "StartupNotify=true\n");
@@ -2050,13 +2035,13 @@ static BOOL write_freedesktop_association_entry(const WCHAR *desktopPath, const
         if (prefix)
         {
             char *path = wine_get_unix_file_name( prefix );
-            fprintf(desktop, "Exec=env WINEPREFIX="%s" wine start ", path);
+            fprintf(desktop, "Exec=env "WINEPREFIX=%s" wine start ", path);
             heap_free( path );
         }
         else
             fprintf(desktop, "Exec=wine start ");
         if (progId) /* file association */
-            fprintf(desktop, "/ProgIDOpen %s %%f\n", escape(progId));
+            fprintf(desktop, "/ProgIDOpen "%s" %%f\n", escape(progId));
         else /* protocol association */
             fprintf(desktop, "%%u\n");
         fprintf(desktop, "NoDisplay=true\n");