Linux: update xdg-utils again, and check in the built versions of the scripts.

scripts/xdg-open

 #!/bin/sh
 #---------------------------------------------
 #   xdg-open
 #
 #   Utility script to open a URL in the registered default application.
 #
 #   Refer to the usage() function below for usage.
 #
 #   Copyright 2009-2010, Fathi Boudra <fabo@freedesktop.org>
 #   Copyright 2009-2010, Rex Dieter <rdieter@fedoraproject.org>
@@ skipping 289 matching lines @@
 #--------------------------------------
 # Checks for known desktop environments
 # set variable DE to the desktop environments name, lowercase
 
 detectDE()
 {
     if [ x"$KDE_FULL_SESSION" = x"true" ]; then DE=kde;
     elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome;
     elif `dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.GetNameOwner string:org.gnome.SessionManager > /dev/null 2>&1` ; then DE=gnome;
     elif xprop -root _DT_SAVE_MODE 2> /dev/null | grep ' = \"xfce4\"$' >/dev/null 2>&1; then DE=xfce;
-    elif [ x"$DESKTOP_SESSION" == x"LXDE" ]; then DE=lxde;
-    else DE=""
+    fi
+
+    if [ x"$DE" = x"" ]; then
+      # fallback to checking $DESKTOP_SESSION
+      case "$DESKTOP_SESSION" in
+         LXDE)
+           DE=lxde; 
+           ;;
+         xfce|xfce4)
+           DE=xfce;
+           ;;
+      esac
+    fi
+
+    if [ x"$DE" = x"" ]; then
+      # fallback to uname output for other platforms
+      case "$(uname 2>/dev/null)" in 
+        Darwin)
+          DE=darwin;
+          ;;
+      esac
+    fi
+
+    if [ x"$DE" = x"gnome" ]; then
+      # gnome-default-applications-properties is only available in GNOME 2.x
+      # but not in GNOME 3.x
+      which gnome-default-applications-properties 2> /dev/null || DE="gnome3"
     fi
 }
 
 #----------------------------------------------------------------------------
 # kfmclient exec/openURL can give bogus exit value in KDE <= 3.5.4
 # It also always returns 1 in KDE 3.4 and earlier
 # Simply return 0 in such case
 
 kfmclient_fix_exit_code()
 {
     [ x"$KDE_SESSION_VERSION" = x"4" ] && return 0;
     version=`LC_ALL=C.UTF-8 kde-config --version 2>/dev/null | grep '^KDE'`
     major=`echo $version | sed 's/KDE.*: \([0-9]\).*/\1/'`
     minor=`echo $version | sed 's/KDE.*: [0-9]*\.\([0-9]\).*/\1/'`
     release=`echo $version | sed 's/KDE.*: [0-9]*\.[0-9]*\.\([0-9]\).*/\1/'`
     test "$major" -gt 3 && return $1
     test "$minor" -gt 5 && return $1
     test "$release" -gt 4 && return $1
     return 0
 }
 
 # This handles backslashes but not quote marks.
 first_word()
 {
     read first rest
     echo "$first"
 }
 
+last_word()
+{
+    read first rest
+    echo "$rest"
+}
+
+open_darwin()
+{
+    open "$1"
+
+    if [ $? -eq 0 ]; then
+        exit_success
+    else
+        exit_failure_operation_failed
+    fi
+}
+
 open_kde()
 {
     if kde-open -v 2>/dev/null 1>&2; then
         kde-open "$1"
     else
         if [ x"$KDE_SESSION_VERSION" = x"4" ]; then
             kfmclient openURL "$1"
         else
             kfmclient exec "$1"
             kfmclient_fix_exit_code $?
@@ skipping 38 matching lines @@
     filetype=`xdg-mime query filetype "$1" | sed "s/;.*//"`
     default=`xdg-mime query default "$filetype"`
     if [ -n "$default" ] ; then
         xdg_user_dir="$XDG_DATA_HOME"
         [ -n "$xdg_user_dir" ] || xdg_user_dir="$HOME/.local/share"
 
         xdg_system_dirs="$XDG_DATA_DIRS"
         [ -n "$xdg_system_dirs" ] || xdg_system_dirs=/usr/local/share/:/usr/share/
 
         for x in `echo "$xdg_user_dir:$xdg_system_dirs" | sed 's/:/ /g'`; do
-            local file="$x/applications/$default"
+            local file
+            # look for both vendor-app.desktop, vendor/app.desktop
+            if [ -r "$x/applications/$default" ]; then
+              file="$x/applications/$default"
+            elif [ -r "$x/applications/`echo $default | sed -e 's|-|/|'`" ]; then
+              file="$x/applications/`echo $default | sed -e 's|-|/|'`"
+            fi
+
             if [ -r "$file" ] ; then
                 command="`grep -E "^Exec(\[[^]=]*])?=" "$file" | cut -d= -f 2- | first_word`"
                 command_exec=`which $command 2>/dev/null`
+                arguments="`grep -E "^Exec(\[[^]=]*])?=" "$file" | cut -d= -f 2- | last_word`"
+                arguments_exec="`echo $arguments | sed -e 's*%[fFuU]*"'"$1"'"*g'`"
                 if [ -x "$command_exec" ] ; then
-                    $command_exec "$1"
+                    if echo $arguments | grep -iq '%[fFuU]' ; then
+                        eval $command_exec $arguments_exec
+                    else
+                        eval $command_exec $arguments_exec "$1"
+                    fi
+
                     if [ $? -eq 0 ]; then
                         exit_success
                     fi
                 fi
             fi
         done
     fi
 }
 
 open_generic()
@@ skipping 115 matching lines @@
     if [ -n "$DISPLAY" ]; then
         BROWSER=firefox:mozilla:epiphany:konqueror:chromium-browser:google-chrome:$BROWSER
     fi
 fi
 
 case "$DE" in
     kde)
     open_kde "$url"
     ;;
 
-    gnome)
+    gnome*)
     open_gnome "$url"
     ;;
 
     xfce)
     open_xfce "$url"
     ;;
 
     lxde)
     open_lxde "$url"
     ;;
 
     generic)
     open_generic "$url"
     ;;
 
     *)
     exit_failure_operation_impossible "no method available for opening '$url'"
     ;;
 esac