vendor/opener-0.7.1/src/xdg-open - toolchain/rustc - Git at Google

 #!/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 <[email protected]>
 #   Copyright 2009-2016, Rex Dieter <[email protected]>
 #   Copyright 2006, Kevin Krammer <[email protected]>
 #   Copyright 2006, Jeremy White <[email protected]>
 #
 #   LICENSE:
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
 #   copy of this software and associated documentation files (the "Software"),
 #   to deal in the Software without restriction, including without limitation
 #   the rights to use, copy, modify, merge, publish, distribute, sublicense,
 #   and/or sell copies of the Software, and to permit persons to whom the
 #   Software is furnished to do so, subject to the following conditions:
 #
 #   The above copyright notice and this permission notice shall be included
 #   in all copies or substantial portions of the Software.
 #
 #   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 #   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 #   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 #   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 #   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 #   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 #   OTHER DEALINGS IN THE SOFTWARE.
 #
 #---------------------------------------------

 manualpage()
 {
 cat << _MANUALPAGE
 Name

    xdg-open -- opens a file or URL in the user's preferred
    application

 Synopsis

    xdg-open { file | URL }

    xdg-open { --help | --manual | --version }

 Description

    xdg-open opens a file or URL in the user's preferred
    application. If a URL is provided the URL will be opened in the
    user's preferred web browser. If a file is provided the file
    will be opened in the preferred application for files of that
    type. xdg-open supports file, ftp, http and https URLs.

    xdg-open is for use inside a desktop session only. It is not
    recommended to use xdg-open as root.

 Options

    --help
           Show command synopsis.

    --manual
           Show this manual page.

    --version
           Show the xdg-utils version information.

 Exit Codes

    An exit code of 0 indicates success while a non-zero exit code
    indicates failure. The following failure codes can be returned:

    1
           Error in command line syntax.

    2
           One of the files passed on the command line did not
           exist.

    3
           A required tool could not be found.

    4
           The action failed.

 See Also

    xdg-mime(1), xdg-settings(1), MIME applications associations
    specification

 Examples

 xdg-open 'http://www.freedesktop.org/'

    Opens the freedesktop.org website in the user's default
    browser.

 xdg-open /tmp/foobar.png

    Opens the PNG image file /tmp/foobar.png in the user's default
    image viewing application.
 _MANUALPAGE
 }

 usage()
 {
 cat << _USAGE
    xdg-open -- opens a file or URL in the user's preferred
    application

 Synopsis

    xdg-open { file | URL }

    xdg-open { --help | --manual | --version }

 _USAGE
 }

 #@xdg-utils-common@

 #----------------------------------------------------------------------------
 #   Common utility functions included in all XDG wrapper scripts
 #----------------------------------------------------------------------------

 DEBUG()
 {
   [ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && return 0;
   [ ${XDG_UTILS_DEBUG_LEVEL} -lt $1 ] && return 0;
   shift
   echo "$@" >&2
 }

 # This handles backslashes but not quote marks.
 first_word()
 {
     read first rest
     echo "$first"
 }

 #-------------------------------------------------------------
 # map a binary to a .desktop file
 binary_to_desktop_file()
 {
     search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
     binary="`command -v "$1"`"
     binary="`readlink -f "$binary"`"
     base="`basename "$binary"`"
     IFS=:
     for dir in $search; do
         unset IFS
         [ "$dir" ] || continue
         [ -d "$dir/applications" ] || [ -d "$dir/applnk" ] || continue
         for file in "$dir"/applications/*.desktop "$dir"/applications/*/*.desktop "$dir"/applnk/*.desktop "$dir"/applnk/*/*.desktop; do
             [ -r "$file" ] || continue
             # Check to make sure it's worth the processing.
             grep -q "^Exec.*$base" "$file" || continue
             # Make sure it's a visible desktop file (e.g. not "preferred-web-browser.desktop").
             grep -Eq "^(NoDisplay|Hidden)=true" "$file" && continue
             command="`grep -E "^Exec(\[[^]=]*])?=" "$file" | cut -d= -f 2- | first_word`"
             command="`command -v "$command"`"
             if [ x"`readlink -f "$command"`" = x"$binary" ]; then
                 # Fix any double slashes that got added path composition
                 echo "$file" | sed -e 's,//*,/,g'
                 return
             fi
         done
     done
 }

 #-------------------------------------------------------------
 # map a .desktop file to a binary
 desktop_file_to_binary()
 {
     search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
     desktop="`basename "$1"`"
     IFS=:
     for dir in $search; do
         unset IFS
         [ "$dir" ] && [ -d "$dir/applications" ] || [ -d "$dir/applnk" ] || continue
         # Check if desktop file contains -
         if [ "${desktop#*-}" != "$desktop" ]; then
             vendor=${desktop%-*}
             app=${desktop#*-}
             if [ -r $dir/applications/$vendor/$app ]; then
                 file_path=$dir/applications/$vendor/$app
             elif [ -r $dir/applnk/$vendor/$app ]; then
                 file_path=$dir/applnk/$vendor/$app
             fi
         fi
         if test -z "$file_path" ; then
             for indir in "$dir"/applications/ "$dir"/applications/*/ "$dir"/applnk/ "$dir"/applnk/*/; do
                 file="$indir/$desktop"
                 if [ -r "$file" ]; then
                     file_path=$file
                     break
                 fi
             done
         fi
         if [ -r "$file_path" ]; then
             # Remove any arguments (%F, %f, %U, %u, etc.).
             command="`grep -E "^Exec(\[[^]=]*])?=" "$file_path" | cut -d= -f 2- | first_word`"
             command="`command -v "$command"`"
             readlink -f "$command"
             return
         fi
     done
 }

 #-------------------------------------------------------------
 # Exit script on successfully completing the desired operation

 exit_success()
 {
     if [ $# -gt 0 ]; then
         echo "$@"
         echo
     fi

     exit 0
 }


 #-----------------------------------------
 # Exit script on malformed arguments, not enough arguments
 # or missing required option.
 # prints usage information

 exit_failure_syntax()
 {
     if [ $# -gt 0 ]; then
         echo "xdg-open: $@" >&2
         echo "Try 'xdg-open --help' for more information." >&2
     else
         usage
         echo "Use 'man xdg-open' or 'xdg-open --manual' for additional info."
     fi

     exit 1
 }

 #-------------------------------------------------------------
 # Exit script on missing file specified on command line

 exit_failure_file_missing()
 {
     if [ $# -gt 0 ]; then
         echo "xdg-open: $@" >&2
     fi

     exit 2
 }

 #-------------------------------------------------------------
 # Exit script on failure to locate necessary tool applications

 exit_failure_operation_impossible()
 {
     if [ $# -gt 0 ]; then
         echo "xdg-open: $@" >&2
     fi

     exit 3
 }

 #-------------------------------------------------------------
 # Exit script on failure returned by a tool application

 exit_failure_operation_failed()
 {
     if [ $# -gt 0 ]; then
         echo "xdg-open: $@" >&2
     fi

     exit 4
 }

 #------------------------------------------------------------
 # Exit script on insufficient permission to read a specified file

 exit_failure_file_permission_read()
 {
     if [ $# -gt 0 ]; then
         echo "xdg-open: $@" >&2
     fi

     exit 5
 }

 #------------------------------------------------------------
 # Exit script on insufficient permission to write a specified file

 exit_failure_file_permission_write()
 {
     if [ $# -gt 0 ]; then
         echo "xdg-open: $@" >&2
     fi

     exit 6
 }

 check_input_file()
 {
     if [ ! -e "$1" ]; then
         exit_failure_file_missing "file '$1' does not exist"
     fi
     if [ ! -r "$1" ]; then
         exit_failure_file_permission_read "no permission to read file '$1'"
     fi
 }

 check_vendor_prefix()
 {
     file_label="$2"
     [ -n "$file_label" ] || file_label="filename"
     file=`basename "$1"`
     case "$file" in
        [[:alpha:]]*-*)
          return
          ;;
     esac

     echo "xdg-open: $file_label '$file' does not have a proper vendor prefix" >&2
     echo 'A vendor prefix consists of alpha characters ([a-zA-Z]) and is terminated' >&2
     echo 'with a dash ("-"). An example '"$file_label"' is '"'example-$file'" >&2
     echo "Use --novendor to override or 'xdg-open --manual' for additional info." >&2
     exit 1
 }

 check_output_file()
 {
     # if the file exists, check if it is writeable
     # if it does not exists, check if we are allowed to write on the directory
     if [ -e "$1" ]; then
         if [ ! -w "$1" ]; then
             exit_failure_file_permission_write "no permission to write to file '$1'"
         fi
     else
         DIR=`dirname "$1"`
         if [ ! -w "$DIR" ] || [ ! -x "$DIR" ]; then
             exit_failure_file_permission_write "no permission to create file '$1'"
         fi
     fi
 }

 #----------------------------------------
 # Checks for shared commands, e.g. --help

 check_common_commands()
 {
     while [ $# -gt 0 ] ; do
         parm="$1"
         shift

         case "$parm" in
             --help)
             usage
             echo "Use 'man xdg-open' or 'xdg-open --manual' for additional info."
             exit_success
             ;;

             --manual)
             manualpage
             exit_success
             ;;

             --version)
             echo "xdg-open 1.1.3+"
             exit_success
             ;;
         esac
     done
 }

 check_common_commands "$@"

 [ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && unset XDG_UTILS_DEBUG_LEVEL;
 if [ ${XDG_UTILS_DEBUG_LEVEL-0} -lt 1 ]; then
     # Be silent
     xdg_redirect_output=" > /dev/null 2> /dev/null"
 else
     # All output to stderr
     xdg_redirect_output=" >&2"
 fi

 #--------------------------------------
 # Checks for known desktop environments
 # set variable DE to the desktop environments name, lowercase

 detectDE()
 {
     # see https://bugs.freedesktop.org/show_bug.cgi?id=34164
     unset GREP_OPTIONS

     if [ -n "${XDG_CURRENT_DESKTOP}" ]; then
       case "${XDG_CURRENT_DESKTOP}" in
          # only recently added to menu-spec, pre-spec X- still in use
          Cinnamon|X-Cinnamon)
            DE=cinnamon;
            ;;
          ENLIGHTENMENT)
            DE=enlightenment;
            ;;
          # GNOME, GNOME-Classic:GNOME, or GNOME-Flashback:GNOME
          GNOME*)
            DE=gnome;
            ;;
          KDE)
            DE=kde;
            ;;
          DEEPIN|Deepin|deepin)
            DE=deepin;
            ;;
          LXDE)
            DE=lxde;
            ;;
          LXQt)
            DE=lxqt;
            ;;
          MATE)
            DE=mate;
            ;;
          XFCE)
            DE=xfce
            ;;
          X-Generic)
            DE=generic
            ;;
       esac
     fi

     if [ x"$DE" = x"" ]; then
       # classic fallbacks
       if [ x"$KDE_FULL_SESSION" != x"" ]; then DE=kde;
       elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome;
       elif [ x"$MATE_DESKTOP_SESSION_ID" != x"" ]; then DE=mate;
       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 xprop -root 2> /dev/null | grep -i '^xfce_desktop_window' >/dev/null 2>&1; then DE=xfce
       elif echo $DESKTOP | grep -q '^Enlightenment'; then DE=enlightenment;
       elif [ x"$LXQT_SESSION_CONFIG" != x"" ]; then DE=lxqt;
       fi
     fi

     if [ x"$DE" = x"" ]; then
       # fallback to checking $DESKTOP_SESSION
       case "$DESKTOP_SESSION" in
          gnome)
            DE=gnome;
            ;;
          LXDE|Lubuntu)
            DE=lxde;
            ;;
          MATE)
            DE=mate;
            ;;
          xfce|xfce4|'Xfce Session')
            DE=xfce;
            ;;
       esac
     fi

     if [ x"$DE" = x"" ]; then
       # fallback to uname output for other platforms
       case "$(uname 2>/dev/null)" in
         CYGWIN*)
           DE=cygwin;
           ;;
         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
       command -v gnome-default-applications-properties > /dev/null || DE="gnome3"
     fi

     if [ -f "$XDG_RUNTIME_DIR/flatpak-info" ]; then
       DE="flatpak"
     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()
 {
     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
 }

 #----------------------------------------------------------------------------
 # Returns true if there is a graphical display attached.

 has_display()
 {
     if [ -n "$DISPLAY" ] || [ -n "$WAYLAND_DISPLAY" ]; then
         return 0
     else
         return 1
     fi
 }

 # This handles backslashes but not quote marks.
 last_word()
 {
     read first rest
     echo "$rest"
 }

 # Get the value of a key in a desktop file's Desktop Entry group.
 # Example: Use get_key foo.desktop Exec
 # to get the values of the Exec= key for the Desktop Entry group.
 get_key()
 {
     local file="${1}"
     local key="${2}"
     local desktop_entry=""

     IFS_="${IFS}"
     IFS=""
     while read line
     do
         case "$line" in
             "[Desktop Entry]")
                 desktop_entry="y"
             ;;
             # Reset match flag for other groups
             "["*)
                 desktop_entry=""
             ;;
             "${key}="*)
                 # Only match Desktop Entry group
                 if [ -n "${desktop_entry}" ]
                 then
                     echo "${line}" | cut -d= -f 2-
                 fi
         esac
     done < "${file}"
     IFS="${IFS_}"
 }

 # Returns true if argument is a file:// URL or path
 is_file_url_or_path()
 {
     if echo "$1" | grep -q '^file://' \
             || ! echo "$1" | grep -Eq '^[[:alpha:]][[:alpha:][:digit:]+\.\-]*:'; then
         return 0
     else
         return 1
     fi
 }

 # If argument is a file URL, convert it to a (percent-decoded) path.
 # If not, leave it as it is.
 file_url_to_path()
 {
     local file="$1"
     if echo "$file" | grep -q '^file://\(localhost\)\?/'; then
         file=${file#file://localhost}
         file=${file#file://}
         file=${file%%#*}
         file=$(echo "$file" | sed -r 's/\?.*$//')
         local printf=printf
         if [ -x /usr/bin/printf ]; then
             printf=/usr/bin/printf
         fi
         file=$($printf "$(echo "$file" | sed -e 's@%\([a-f0-9A-F]\{2\}\)@\\x\1@g')")
     fi
     echo "$file"
 }

 open_cygwin()
 {
     cygstart "$1"

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_darwin()
 {
     open "$1"

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_kde()
 {
     if [ -n "${KDE_SESSION_VERSION}" ]; then
       case "${KDE_SESSION_VERSION}" in
         4)
           kde-open "$1"
         ;;
         5)
           kde-open${KDE_SESSION_VERSION} "$1"
         ;;
       esac
     else
         kfmclient exec "$1"
         kfmclient_fix_exit_code $?
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_deepin()
 {
     if dde-open -version >/dev/null 2>&1; then
         dde-open "$1"
     else
         open_generic "$1"
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_gnome3()
 {
     if gio help open 2>/dev/null 1>&2; then
         gio open "$1"
     elif gvfs-open --help 2>/dev/null 1>&2; then
         gvfs-open "$1"
     else
         open_generic "$1"
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_gnome()
 {
     if gio help open 2>/dev/null 1>&2; then
         gio open "$1"
     elif gvfs-open --help 2>/dev/null 1>&2; then
         gvfs-open "$1"
     elif gnome-open --help 2>/dev/null 1>&2; then
         gnome-open "$1"
     else
         open_generic "$1"
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_mate()
 {
     if gio help open 2>/dev/null 1>&2; then
         gio open "$1"
     elif gvfs-open --help 2>/dev/null 1>&2; then
         gvfs-open "$1"
     elif mate-open --help 2>/dev/null 1>&2; then
         mate-open "$1"
     else
         open_generic "$1"
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_xfce()
 {
     if exo-open --help 2>/dev/null 1>&2; then
         exo-open "$1"
     elif gio help open 2>/dev/null 1>&2; then
         gio open "$1"
     elif gvfs-open --help 2>/dev/null 1>&2; then
         gvfs-open "$1"
     else
         open_generic "$1"
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_enlightenment()
 {
     if enlightenment_open --help 2>/dev/null 1>&2; then
         enlightenment_open "$1"
     else
         open_generic "$1"
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_flatpak()
 {
     gdbus call --session \
         --dest org.freedesktop.portal.Desktop \
         --object-path /org/freedesktop/portal/desktop \
         --method org.freedesktop.portal.OpenURI.OpenURI \
         "" "$1" {}

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 #-----------------------------------------
 # Recursively search .desktop file

 search_desktop_file()
 {
     local default="$1"
     local dir="$2"
     local target="$3"

     local file=""
     # look for both vendor-app.desktop, vendor/app.desktop
     if [ -r "$dir/$default" ]; then
       file="$dir/$default"
     elif [ -r "$dir/`echo $default | sed -e 's|-|/|'`" ]; then
       file="$dir/`echo $default | sed -e 's|-|/|'`"
     fi

     if [ -r "$file" ] ; then
         command="$(get_key "${file}" "Exec" | first_word)"
         icon="$(get_key "${file}" "Icon")"
         # FIXME: Actually LC_MESSAGES should be used as described in
         # http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s04.html
         localised_name="$(get_key "${file}" "Name")"
         set -- $(get_key "${file}" "Exec" | last_word)
         # We need to replace any occurrence of "%f", "%F" and
         # the like by the target file. We examine each
         # argument and append the modified argument to the
         # end then shift.
         local args=$#
         local replaced=0
         while [ $args -gt 0 ]; do
             case $1 in
                 %[c])
                     replaced=1
                     arg="${localised_name}"
                     shift
                     set -- "$@" "$arg"
                     ;;
                 %[fFuU])
                     replaced=1
                     arg="$target"
                     shift
                     set -- "$@" "$arg"
                     ;;
                 %[i])
                     replaced=1
                     shift
                     set -- "$@" "--icon" "$icon"
                     ;;
                 *)
                     arg="$1"
                     shift
                     set -- "$@" "$arg"
                     ;;
             esac
             args=$(( $args - 1 ))
         done
         [ $replaced -eq 1 ] || set -- "$@" "$target"
         env "$command" "$@"

         if [ $? -eq 0 ]; then
             exit_success
         fi
     fi

     for d in "$dir/"*/; do
         [ -d "$d" ] && search_desktop_file "$default" "$d" "$target"
     done
 }


 open_generic_xdg_mime()
 {
     filetype="$2"
     default=`xdg-mime query default "$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/

 DEBUG 3 "$xdg_user_dir:$xdg_system_dirs"
         for x in `echo "$xdg_user_dir:$xdg_system_dirs" | sed 's/:/ /g'`; do
             search_desktop_file "$default" "$x/applications/" "$1"
         done
     fi
 }

 open_generic_xdg_file_mime()
 {
     filetype=`xdg-mime query filetype "$1" | sed "s/;.*//"`
     open_generic_xdg_mime "$1" "$filetype"
 }

 open_generic_xdg_x_scheme_handler()
 {
     scheme="`echo $1 | sed -n 's/\(^[[:alnum:]+\.-]*\):.*$/\1/p'`"
     if [ -n $scheme ]; then
         filetype="x-scheme-handler/$scheme"
         open_generic_xdg_mime "$1" "$filetype"
     fi
 }

 has_single_argument()
 {
   test $# = 1
 }

 open_envvar()
 {
     local oldifs="$IFS"
     local browser browser_with_arg

     IFS=":"
     for browser in $BROWSER; do
         IFS="$oldifs"

         if [ -z "$browser" ]; then
             continue
         fi

         if echo "$browser" | grep -q %s; then
             # Avoid argument injection.
             # See https://bugs.freedesktop.org/show_bug.cgi?id=103807
             # URIs don't have IFS characters spaces anyway.
             has_single_argument $1 && $(printf "$browser" "$1")
         else
             $browser "$1"
         fi

         if [ $? -eq 0 ]; then
             exit_success
         fi
     done
 }

 open_generic()
 {
     if is_file_url_or_path "$1"; then
         local file="$(file_url_to_path "$1")"

         check_input_file "$file"

         if has_display; then
             filetype=`xdg-mime query filetype "$file" | sed "s/;.*//"`
             open_generic_xdg_mime "$file" "$filetype"
         fi

         if command -v run-mailcap >/dev/null; then
             run-mailcap --action=view "$file"
             if [ $? -eq 0 ]; then
                 exit_success
             fi
         fi

         if has_display && mimeopen -v 2>/dev/null 1>&2; then
             mimeopen -L -n "$file"
             if [ $? -eq 0 ]; then
                 exit_success
             fi
         fi
     fi

     if has_display; then
         open_generic_xdg_x_scheme_handler "$1"
     fi

     if [ -n "$BROWSER" ]; then
         open_envvar "$1"
     fi

     # if BROWSER variable is not set, check some well known browsers instead
     if [ x"$BROWSER" = x"" ]; then
         BROWSER=www-browser:links2:elinks:links:lynx:w3m
         if has_display; then
             BROWSER=x-www-browser:firefox:iceweasel:seamonkey:mozilla:epiphany:konqueror:chromium:chromium-browser:google-chrome:$BROWSER
         fi
     fi

     open_envvar "$1"

     exit_failure_operation_impossible "no method available for opening '$1'"
 }

 open_lxde()
 {

     # pcmanfm only knows how to handle file:// urls and filepaths, it seems.
     if pcmanfm --help >/dev/null 2>&1 && is_file_url_or_path "$1"; then
         local file="$(file_url_to_path "$1")"

         # handle relative paths
         if ! echo "$file" | grep -q ^/; then
             file="$(pwd)/$file"
         fi

         pcmanfm "$file"
     else
         open_generic "$1"
     fi

     if [ $? -eq 0 ]; then
         exit_success
     else
         exit_failure_operation_failed
     fi
 }

 open_lxqt()
 {
     open_generic "$1"
 }

 [ x"$1" != x"" ] || exit_failure_syntax

 url=
 while [ $# -gt 0 ] ; do
     parm="$1"
     shift

     case "$parm" in
       -*)
         exit_failure_syntax "unexpected option '$parm'"
         ;;

       *)
         if [ -n "$url" ] ; then
             exit_failure_syntax "unexpected argument '$parm'"
         fi
         url="$parm"
         ;;
     esac
 done

 if [ -z "${url}" ] ; then
     exit_failure_syntax "file or URL argument missing"
 fi

 detectDE

 if [ x"$DE" = x"" ]; then
     DE=generic
 fi

 DEBUG 2 "Selected DE $DE"

 # sanitize BROWSER (avoid calling ourselves in particular)
 case "${BROWSER}" in
     *:"xdg-open"|"xdg-open":*)
         BROWSER=$(echo $BROWSER | sed -e 's|:xdg-open||g' -e 's|xdg-open:||g')
         ;;
     "xdg-open")
         BROWSER=
         ;;
 esac

 case "$DE" in
     kde)
     open_kde "$url"
     ;;

     deepin)
     open_deepin "$url"
     ;;

     gnome3|cinnamon)
     open_gnome3 "$url"
     ;;

     gnome)
     open_gnome "$url"
     ;;

     mate)
     open_mate "$url"
     ;;

     xfce)
     open_xfce "$url"
     ;;

     lxde)
     open_lxde "$url"
     ;;

     lxqt)
     open_lxqt "$url"
     ;;

     enlightenment)
     open_enlightenment "$url"
     ;;

     cygwin)
     open_cygwin "$url"
     ;;

     darwin)
     open_darwin "$url"
     ;;

     flatpak)
     open_flatpak "$url"
     ;;

     generic)
     open_generic "$url"
     ;;

     *)
     exit_failure_operation_impossible "no method available for opening '$url'"
     ;;
 esac
	#!/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 <[email protected]>
	# Copyright 2009-2016, Rex Dieter <[email protected]>
	# Copyright 2006, Kevin Krammer <[email protected]>
	# Copyright 2006, Jeremy White <[email protected]>
	#
	# LICENSE:
	#
	# Permission is hereby granted, free of charge, to any person obtaining a
	# copy of this software and associated documentation files (the "Software"),
	# to deal in the Software without restriction, including without limitation
	# the rights to use, copy, modify, merge, publish, distribute, sublicense,
	# and/or sell copies of the Software, and to permit persons to whom the
	# Software is furnished to do so, subject to the following conditions:
	#
	# The above copyright notice and this permission notice shall be included
	# in all copies or substantial portions of the Software.
	#
	# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	# OTHER DEALINGS IN THE SOFTWARE.
	#
	#---------------------------------------------

	manualpage()
	{
	cat << _MANUALPAGE
	Name

	xdg-open -- opens a file or URL in the user's preferred
	application

	Synopsis

	xdg-open { file \| URL }

	xdg-open { --help \| --manual \| --version }

	Description

	xdg-open opens a file or URL in the user's preferred
	application. If a URL is provided the URL will be opened in the
	user's preferred web browser. If a file is provided the file
	will be opened in the preferred application for files of that
	type. xdg-open supports file, ftp, http and https URLs.

	xdg-open is for use inside a desktop session only. It is not
	recommended to use xdg-open as root.

	Options

	--help
	Show command synopsis.

	--manual
	Show this manual page.

	--version
	Show the xdg-utils version information.

	Exit Codes

	An exit code of 0 indicates success while a non-zero exit code
	indicates failure. The following failure codes can be returned:

	1
	Error in command line syntax.

	2
	One of the files passed on the command line did not
	exist.

	3
	A required tool could not be found.

	4
	The action failed.

	See Also

	xdg-mime(1), xdg-settings(1), MIME applications associations
	specification

	Examples

	xdg-open 'http://www.freedesktop.org/'

	Opens the freedesktop.org website in the user's default
	browser.

	xdg-open /tmp/foobar.png

	Opens the PNG image file /tmp/foobar.png in the user's default
	image viewing application.
	_MANUALPAGE
	}

	usage()
	{
	cat << _USAGE
	xdg-open -- opens a file or URL in the user's preferred
	application

	Synopsis

	xdg-open { file \| URL }

	xdg-open { --help \| --manual \| --version }

	_USAGE
	}

	#@xdg-utils-common@

	#----------------------------------------------------------------------------
	# Common utility functions included in all XDG wrapper scripts
	#----------------------------------------------------------------------------

	DEBUG()
	{
	[ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && return 0;
	[ ${XDG_UTILS_DEBUG_LEVEL} -lt $1 ] && return 0;
	shift
	echo "$@" >&2
	}

	# This handles backslashes but not quote marks.
	first_word()
	{
	read first rest
	echo "$first"
	}

	#-------------------------------------------------------------
	# map a binary to a .desktop file
	binary_to_desktop_file()
	{
	search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
	binary="`command -v "$1"`"
	binary="`readlink -f "$binary"`"
	base="`basename "$binary"`"
	IFS=:
	for dir in $search; do
	unset IFS
	[ "$dir" ] \|\| continue
	[ -d "$dir/applications" ] \|\| [ -d "$dir/applnk" ] \|\| continue
	for file in "$dir"/applications/.desktop "$dir"/applications//.desktop "$dir"/applnk/.desktop "$dir"/applnk//.desktop; do
	[ -r "$file" ] \|\| continue
	# Check to make sure it's worth the processing.
	grep -q "^Exec.*$base" "$file" \|\| continue
	# Make sure it's a visible desktop file (e.g. not "preferred-web-browser.desktop").
	grep -Eq "^(NoDisplay\|Hidden)=true" "$file" && continue
	command="`grep -E "^Exec(\[[^]=]*])?=" "$file" \| cut -d= -f 2- \| first_word`"
	command="`command -v "$command"`"
	if [ x"`readlink -f "$command"`" = x"$binary" ]; then
	# Fix any double slashes that got added path composition
	echo "$file" \| sed -e 's,//*,/,g'
	return
	fi
	done
	done
	}

	#-------------------------------------------------------------
	# map a .desktop file to a binary
	desktop_file_to_binary()
	{
	search="${XDG_DATA_HOME:-$HOME/.local/share}:${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
	desktop="`basename "$1"`"
	IFS=:
	for dir in $search; do
	unset IFS
	[ "$dir" ] && [ -d "$dir/applications" ] \|\| [ -d "$dir/applnk" ] \|\| continue
	# Check if desktop file contains -
	if [ "${desktop#*-}" != "$desktop" ]; then
	vendor=${desktop%-*}
	app=${desktop#*-}
	if [ -r $dir/applications/$vendor/$app ]; then
	file_path=$dir/applications/$vendor/$app
	elif [ -r $dir/applnk/$vendor/$app ]; then
	file_path=$dir/applnk/$vendor/$app
	fi
	fi
	if test -z "$file_path" ; then
	for indir in "$dir"/applications/ "$dir"/applications// "$dir"/applnk/ "$dir"/applnk//; do
	file="$indir/$desktop"
	if [ -r "$file" ]; then
	file_path=$file
	break
	fi
	done
	fi
	if [ -r "$file_path" ]; then
	# Remove any arguments (%F, %f, %U, %u, etc.).
	command="`grep -E "^Exec(\[[^]=]*])?=" "$file_path" \| cut -d= -f 2- \| first_word`"
	command="`command -v "$command"`"
	readlink -f "$command"
	return
	fi
	done
	}

	#-------------------------------------------------------------
	# Exit script on successfully completing the desired operation

	exit_success()
	{
	if [ $# -gt 0 ]; then
	echo "$@"
	echo
	fi

	exit 0
	}


	#-----------------------------------------
	# Exit script on malformed arguments, not enough arguments
	# or missing required option.
	# prints usage information

	exit_failure_syntax()
	{
	if [ $# -gt 0 ]; then
	echo "xdg-open: $@" >&2
	echo "Try 'xdg-open --help' for more information." >&2
	else
	usage
	echo "Use 'man xdg-open' or 'xdg-open --manual' for additional info."
	fi

	exit 1
	}

	#-------------------------------------------------------------
	# Exit script on missing file specified on command line

	exit_failure_file_missing()
	{
	if [ $# -gt 0 ]; then
	echo "xdg-open: $@" >&2
	fi

	exit 2
	}

	#-------------------------------------------------------------
	# Exit script on failure to locate necessary tool applications

	exit_failure_operation_impossible()
	{
	if [ $# -gt 0 ]; then
	echo "xdg-open: $@" >&2
	fi

	exit 3
	}

	#-------------------------------------------------------------
	# Exit script on failure returned by a tool application

	exit_failure_operation_failed()
	{
	if [ $# -gt 0 ]; then
	echo "xdg-open: $@" >&2
	fi

	exit 4
	}

	#------------------------------------------------------------
	# Exit script on insufficient permission to read a specified file

	exit_failure_file_permission_read()
	{
	if [ $# -gt 0 ]; then
	echo "xdg-open: $@" >&2
	fi

	exit 5
	}

	#------------------------------------------------------------
	# Exit script on insufficient permission to write a specified file

	exit_failure_file_permission_write()
	{
	if [ $# -gt 0 ]; then
	echo "xdg-open: $@" >&2
	fi

	exit 6
	}

	check_input_file()
	{
	if [ ! -e "$1" ]; then
	exit_failure_file_missing "file '$1' does not exist"
	fi
	if [ ! -r "$1" ]; then
	exit_failure_file_permission_read "no permission to read file '$1'"
	fi
	}

	check_vendor_prefix()
	{
	file_label="$2"
	[ -n "$file_label" ] \|\| file_label="filename"
	file=`basename "$1"`
	case "$file" in
	[[:alpha:]]-)
	return
	;;
	esac

	echo "xdg-open: $file_label '$file' does not have a proper vendor prefix" >&2
	echo 'A vendor prefix consists of alpha characters ([a-zA-Z]) and is terminated' >&2
	echo 'with a dash ("-"). An example '"$file_label"' is '"'example-$file'" >&2
	echo "Use --novendor to override or 'xdg-open --manual' for additional info." >&2
	exit 1
	}

	check_output_file()
	{
	# if the file exists, check if it is writeable
	# if it does not exists, check if we are allowed to write on the directory
	if [ -e "$1" ]; then
	if [ ! -w "$1" ]; then
	exit_failure_file_permission_write "no permission to write to file '$1'"
	fi
	else
	DIR=`dirname "$1"`
	if [ ! -w "$DIR" ] \|\| [ ! -x "$DIR" ]; then
	exit_failure_file_permission_write "no permission to create file '$1'"
	fi
	fi
	}

	#----------------------------------------
	# Checks for shared commands, e.g. --help

	check_common_commands()
	{
	while [ $# -gt 0 ] ; do
	parm="$1"
	shift

	case "$parm" in
	--help)
	usage
	echo "Use 'man xdg-open' or 'xdg-open --manual' for additional info."
	exit_success
	;;

	--manual)
	manualpage
	exit_success
	;;

	--version)
	echo "xdg-open 1.1.3+"
	exit_success
	;;
	esac
	done
	}

	check_common_commands "$@"

	[ -z "${XDG_UTILS_DEBUG_LEVEL}" ] && unset XDG_UTILS_DEBUG_LEVEL;
	if [ ${XDG_UTILS_DEBUG_LEVEL-0} -lt 1 ]; then
	# Be silent
	xdg_redirect_output=" > /dev/null 2> /dev/null"
	else
	# All output to stderr
	xdg_redirect_output=" >&2"
	fi

	#--------------------------------------
	# Checks for known desktop environments
	# set variable DE to the desktop environments name, lowercase

	detectDE()
	{
	# see https://bugs.freedesktop.org/show_bug.cgi?id=34164
	unset GREP_OPTIONS

	if [ -n "${XDG_CURRENT_DESKTOP}" ]; then
	case "${XDG_CURRENT_DESKTOP}" in
	# only recently added to menu-spec, pre-spec X- still in use
	Cinnamon\|X-Cinnamon)
	DE=cinnamon;
	;;
	ENLIGHTENMENT)
	DE=enlightenment;
	;;
	# GNOME, GNOME-Classic:GNOME, or GNOME-Flashback:GNOME
	GNOME*)
	DE=gnome;
	;;
	KDE)
	DE=kde;
	;;
	DEEPIN\|Deepin\|deepin)
	DE=deepin;
	;;
	LXDE)
	DE=lxde;
	;;
	LXQt)
	DE=lxqt;
	;;
	MATE)
	DE=mate;
	;;
	XFCE)
	DE=xfce
	;;
	X-Generic)
	DE=generic
	;;
	esac
	fi

	if [ x"$DE" = x"" ]; then
	# classic fallbacks
	if [ x"$KDE_FULL_SESSION" != x"" ]; then DE=kde;
	elif [ x"$GNOME_DESKTOP_SESSION_ID" != x"" ]; then DE=gnome;
	elif [ x"$MATE_DESKTOP_SESSION_ID" != x"" ]; then DE=mate;
	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 xprop -root 2> /dev/null \| grep -i '^xfce_desktop_window' >/dev/null 2>&1; then DE=xfce
	elif echo $DESKTOP \| grep -q '^Enlightenment'; then DE=enlightenment;
	elif [ x"$LXQT_SESSION_CONFIG" != x"" ]; then DE=lxqt;
	fi
	fi

	if [ x"$DE" = x"" ]; then
	# fallback to checking $DESKTOP_SESSION
	case "$DESKTOP_SESSION" in
	gnome)
	DE=gnome;
	;;
	LXDE\|Lubuntu)
	DE=lxde;
	;;
	MATE)
	DE=mate;
	;;
	xfce\|xfce4\|'Xfce Session')
	DE=xfce;
	;;
	esac
	fi

	if [ x"$DE" = x"" ]; then
	# fallback to uname output for other platforms
	case "$(uname 2>/dev/null)" in
	CYGWIN*)
	DE=cygwin;
	;;
	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
	command -v gnome-default-applications-properties > /dev/null \|\| DE="gnome3"
	fi

	if [ -f "$XDG_RUNTIME_DIR/flatpak-info" ]; then
	DE="flatpak"
	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()
	{
	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
	}

	#----------------------------------------------------------------------------
	# Returns true if there is a graphical display attached.

	has_display()
	{
	if [ -n "$DISPLAY" ] \|\| [ -n "$WAYLAND_DISPLAY" ]; then
	return 0
	else
	return 1
	fi
	}

	# This handles backslashes but not quote marks.
	last_word()
	{
	read first rest
	echo "$rest"
	}

	# Get the value of a key in a desktop file's Desktop Entry group.
	# Example: Use get_key foo.desktop Exec
	# to get the values of the Exec= key for the Desktop Entry group.
	get_key()
	{
	local file="${1}"
	local key="${2}"
	local desktop_entry=""

	IFS_="${IFS}"
	IFS=""
	while read line
	do
	case "$line" in
	"[Desktop Entry]")
	desktop_entry="y"
	;;
	# Reset match flag for other groups
	"["*)
	desktop_entry=""
	;;
	"${key}="*)
	# Only match Desktop Entry group
	if [ -n "${desktop_entry}" ]
	then
	echo "${line}" \| cut -d= -f 2-
	fi
	esac
	done < "${file}"
	IFS="${IFS_}"
	}

	# Returns true if argument is a file:// URL or path
	is_file_url_or_path()
	{
	if echo "$1" \| grep -q '^file://' \
	\|\| ! echo "$1" \| grep -Eq '^[[:alpha:]][[:alpha:][:digit:]+\.\-]*:'; then
	return 0
	else
	return 1
	fi
	}

	# If argument is a file URL, convert it to a (percent-decoded) path.
	# If not, leave it as it is.
	file_url_to_path()
	{
	local file="$1"
	if echo "$file" \| grep -q '^file://\(localhost\)\?/'; then
	file=${file#file://localhost}
	file=${file#file://}
	file=${file%%#*}
	file=$(echo "$file" \| sed -r 's/\?.*$//')
	local printf=printf
	if [ -x /usr/bin/printf ]; then
	printf=/usr/bin/printf
	fi
	file=$($printf "$(echo "$file" \| sed -e 's@%\([a-f0-9A-F]\{2\}\)@\\x\1@g')")
	fi
	echo "$file"
	}

	open_cygwin()
	{
	cygstart "$1"

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_darwin()
	{
	open "$1"

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_kde()
	{
	if [ -n "${KDE_SESSION_VERSION}" ]; then
	case "${KDE_SESSION_VERSION}" in
	4)
	kde-open "$1"
	;;
	5)
	kde-open${KDE_SESSION_VERSION} "$1"
	;;
	esac
	else
	kfmclient exec "$1"
	kfmclient_fix_exit_code $?
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_deepin()
	{
	if dde-open -version >/dev/null 2>&1; then
	dde-open "$1"
	else
	open_generic "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_gnome3()
	{
	if gio help open 2>/dev/null 1>&2; then
	gio open "$1"
	elif gvfs-open --help 2>/dev/null 1>&2; then
	gvfs-open "$1"
	else
	open_generic "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_gnome()
	{
	if gio help open 2>/dev/null 1>&2; then
	gio open "$1"
	elif gvfs-open --help 2>/dev/null 1>&2; then
	gvfs-open "$1"
	elif gnome-open --help 2>/dev/null 1>&2; then
	gnome-open "$1"
	else
	open_generic "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_mate()
	{
	if gio help open 2>/dev/null 1>&2; then
	gio open "$1"
	elif gvfs-open --help 2>/dev/null 1>&2; then
	gvfs-open "$1"
	elif mate-open --help 2>/dev/null 1>&2; then
	mate-open "$1"
	else
	open_generic "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_xfce()
	{
	if exo-open --help 2>/dev/null 1>&2; then
	exo-open "$1"
	elif gio help open 2>/dev/null 1>&2; then
	gio open "$1"
	elif gvfs-open --help 2>/dev/null 1>&2; then
	gvfs-open "$1"
	else
	open_generic "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_enlightenment()
	{
	if enlightenment_open --help 2>/dev/null 1>&2; then
	enlightenment_open "$1"
	else
	open_generic "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_flatpak()
	{
	gdbus call --session \
	--dest org.freedesktop.portal.Desktop \
	--object-path /org/freedesktop/portal/desktop \
	--method org.freedesktop.portal.OpenURI.OpenURI \
	"" "$1" {}

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	#-----------------------------------------
	# Recursively search .desktop file

	search_desktop_file()
	{
	local default="$1"
	local dir="$2"
	local target="$3"

	local file=""
	# look for both vendor-app.desktop, vendor/app.desktop
	if [ -r "$dir/$default" ]; then
	file="$dir/$default"
	elif [ -r "$dir/`echo $default \| sed -e 's\|-\|/\|'`" ]; then
	file="$dir/`echo $default \| sed -e 's\|-\|/\|'`"
	fi

	if [ -r "$file" ] ; then
	command="$(get_key "${file}" "Exec" \| first_word)"
	icon="$(get_key "${file}" "Icon")"
	# FIXME: Actually LC_MESSAGES should be used as described in
	# http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s04.html
	localised_name="$(get_key "${file}" "Name")"
	set -- $(get_key "${file}" "Exec" \| last_word)
	# We need to replace any occurrence of "%f", "%F" and
	# the like by the target file. We examine each
	# argument and append the modified argument to the
	# end then shift.
	local args=$#
	local replaced=0
	while [ $args -gt 0 ]; do
	case $1 in
	%[c])
	replaced=1
	arg="${localised_name}"
	shift
	set -- "$@" "$arg"
	;;
	%[fFuU])
	replaced=1
	arg="$target"
	shift
	set -- "$@" "$arg"
	;;
	%[i])
	replaced=1
	shift
	set -- "$@" "--icon" "$icon"
	;;
	*)
	arg="$1"
	shift
	set -- "$@" "$arg"
	;;
	esac
	args=$(( $args - 1 ))
	done
	[ $replaced -eq 1 ] \|\| set -- "$@" "$target"
	env "$command" "$@"

	if [ $? -eq 0 ]; then
	exit_success
	fi
	fi

	for d in "$dir/"*/; do
	[ -d "$d" ] && search_desktop_file "$default" "$d" "$target"
	done
	}


	open_generic_xdg_mime()
	{
	filetype="$2"
	default=`xdg-mime query default "$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/

	DEBUG 3 "$xdg_user_dir:$xdg_system_dirs"
	for x in `echo "$xdg_user_dir:$xdg_system_dirs" \| sed 's/:/ /g'`; do
	search_desktop_file "$default" "$x/applications/" "$1"
	done
	fi
	}

	open_generic_xdg_file_mime()
	{
	filetype=`xdg-mime query filetype "$1" \| sed "s/;.*//"`
	open_generic_xdg_mime "$1" "$filetype"
	}

	open_generic_xdg_x_scheme_handler()
	{
	scheme="`echo $1 \| sed -n 's/\(^[[:alnum:]+\.-]\):.$/\1/p'`"
	if [ -n $scheme ]; then
	filetype="x-scheme-handler/$scheme"
	open_generic_xdg_mime "$1" "$filetype"
	fi
	}

	has_single_argument()
	{
	test $# = 1
	}

	open_envvar()
	{
	local oldifs="$IFS"
	local browser browser_with_arg

	IFS=":"
	for browser in $BROWSER; do
	IFS="$oldifs"

	if [ -z "$browser" ]; then
	continue
	fi

	if echo "$browser" \| grep -q %s; then
	# Avoid argument injection.
	# See https://bugs.freedesktop.org/show_bug.cgi?id=103807
	# URIs don't have IFS characters spaces anyway.
	has_single_argument $1 && $(printf "$browser" "$1")
	else
	$browser "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	fi
	done
	}

	open_generic()
	{
	if is_file_url_or_path "$1"; then
	local file="$(file_url_to_path "$1")"

	check_input_file "$file"

	if has_display; then
	filetype=`xdg-mime query filetype "$file" \| sed "s/;.*//"`
	open_generic_xdg_mime "$file" "$filetype"
	fi

	if command -v run-mailcap >/dev/null; then
	run-mailcap --action=view "$file"
	if [ $? -eq 0 ]; then
	exit_success
	fi
	fi

	if has_display && mimeopen -v 2>/dev/null 1>&2; then
	mimeopen -L -n "$file"
	if [ $? -eq 0 ]; then
	exit_success
	fi
	fi
	fi

	if has_display; then
	open_generic_xdg_x_scheme_handler "$1"
	fi

	if [ -n "$BROWSER" ]; then
	open_envvar "$1"
	fi

	# if BROWSER variable is not set, check some well known browsers instead
	if [ x"$BROWSER" = x"" ]; then
	BROWSER=www-browser:links2:elinks:links:lynx:w3m
	if has_display; then
	BROWSER=x-www-browser:firefox:iceweasel:seamonkey:mozilla:epiphany:konqueror:chromium:chromium-browser:google-chrome:$BROWSER
	fi
	fi

	open_envvar "$1"

	exit_failure_operation_impossible "no method available for opening '$1'"
	}

	open_lxde()
	{

	# pcmanfm only knows how to handle file:// urls and filepaths, it seems.
	if pcmanfm --help >/dev/null 2>&1 && is_file_url_or_path "$1"; then
	local file="$(file_url_to_path "$1")"

	# handle relative paths
	if ! echo "$file" \| grep -q ^/; then
	file="$(pwd)/$file"
	fi

	pcmanfm "$file"
	else
	open_generic "$1"
	fi

	if [ $? -eq 0 ]; then
	exit_success
	else
	exit_failure_operation_failed
	fi
	}

	open_lxqt()
	{
	open_generic "$1"
	}

	[ x"$1" != x"" ] \|\| exit_failure_syntax

	url=
	while [ $# -gt 0 ] ; do
	parm="$1"
	shift

	case "$parm" in
	-*)
	exit_failure_syntax "unexpected option '$parm'"
	;;

	*)
	if [ -n "$url" ] ; then
	exit_failure_syntax "unexpected argument '$parm'"
	fi
	url="$parm"
	;;
	esac
	done

	if [ -z "${url}" ] ; then
	exit_failure_syntax "file or URL argument missing"
	fi

	detectDE

	if [ x"$DE" = x"" ]; then
	DE=generic
	fi

	DEBUG 2 "Selected DE $DE"

	# sanitize BROWSER (avoid calling ourselves in particular)
	case "${BROWSER}" in
	:"xdg-open"\|"xdg-open":)
	BROWSER=$(echo $BROWSER \| sed -e 's\|:xdg-open\|\|g' -e 's\|xdg-open:\|\|g')
	;;
	"xdg-open")
	BROWSER=
	;;
	esac

	case "$DE" in
	kde)
	open_kde "$url"
	;;

	deepin)
	open_deepin "$url"
	;;

	gnome3\|cinnamon)
	open_gnome3 "$url"
	;;

	gnome)
	open_gnome "$url"
	;;

	mate)
	open_mate "$url"
	;;

	xfce)
	open_xfce "$url"
	;;

	lxde)
	open_lxde "$url"
	;;

	lxqt)
	open_lxqt "$url"
	;;

	enlightenment)
	open_enlightenment "$url"
	;;

	cygwin)
	open_cygwin "$url"
	;;

	darwin)
	open_darwin "$url"
	;;

	flatpak)
	open_flatpak "$url"
	;;

	generic)
	open_generic "$url"
	;;

	*)
	exit_failure_operation_impossible "no method available for opening '$url'"
	;;
	esac