#!/bin/sh
#---------------------------------------------
#   xdg-mime
#
#   Utility script to manipulate MIME related information
#   on XDG compliant systems.
#
#   Refer to the usage() function below for usage.
#
#   Copyright 2009-2010, Fathi Boudra <fabo@freedesktop.org>
#   Copyright 2009-2010, Rex Dieter <rdieter@fedoraproject.org>
#   Copyright 2006, Kevin Krammer <kevin.krammer@gmx.at>
#   Copyright 2006, Jeremy White <jwhite@codeweavers.com>
#
#   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
Please see the man pages.
_MANUALPAGE
}

usage()
{
cat << _USAGE
_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="`which "$1"`"
    binary="`readlink -f "$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(\[[^]=]*])?=" "$file" | cut -d= -f 2- | first_word`"
            command="`which "$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(\[[^]=]*])?=" "$file_path" | cut -d= -f 2- | first_word`"
            command="`which "$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-mime: $@" >&2
        echo "Try 'xdg-mime --help' for more information." >&2
    else
        usage
        echo "Use 'man xdg-mime' or 'xdg-mime --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-mime: $@" >&2
    fi

    exit 2
}

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

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

    exit 3
}

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

exit_failure_operation_failed()
{
    if [ $# -gt 0 ]; then
        echo "xdg-mime: $@" >&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-mime: $@" >&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-mime: $@" >&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-mime: $file_label '$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-mime --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-mime' or 'xdg-mime --manual' for additional info."
            exit_success
            ;;

            --manual)
            manualpage
            exit_success
            ;;

            --version)
            echo "xdg-mime 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 Desktop Environments
         DEEPIN|Deepin|deepin)
           DE=dde;
           ;;
         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
      which gnome-default-applications-properties > /dev/null 2>&1  || 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
}

update_mime_database()
{
   if [ "$mode" = user ] && has_display; then
      detectDE
      if [ x"$DE" = x"kde" ] ; then
         DEBUG 1 "Running kbuildsycoca"
         eval 'kbuildsycoca${KDE_SESSION_VERSION}'$xdg_redirect_output
      fi
   fi
   for x in `echo "$PATH:/opt/gnome/bin" | sed 's/:/ /g'`; do
      if [ -x $x/update-mime-database ] ; then
         DEBUG 1 "Running $x/update-mime-database $1"
         eval '$x/update-mime-database $1'$xdg_redirect_output
         return
      fi
   done
}

info_kde()
{
    if [ -n "${KDE_SESSION_VERSION}" ]; then
      case "${KDE_SESSION_VERSION}" in
        4)
          DEBUG 1 "Running kmimetypefinder \"$1\""
          kmimetypefinder "$1" 2>/dev/null | head -n 1
        ;;
        5)
          DEBUG 1 "Running kmimetypefinder${KDE_SESSION_VERSION} \"$1\""
          kmimetypefinder${KDE_SESSION_VERSION} "$1" 2>/dev/null | head -n 1
        ;;
      esac
    else
        DEBUG 1 "Running kfile \"$1\""
        kfile "$1" 2> /dev/null | head -n 1 | cut -d "(" -f 2 | cut -d ")" -f 1
    fi

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

info_gnome()
{
    if gio help info 2>/dev/null 1>&2; then
        DEBUG 1 "Running gio info \"$1\""
        gio info "$1" 2> /dev/null | grep standard::content-type | cut -d' ' -f4
    elif gvfs-info --help 2>/dev/null 1>&2; then
        DEBUG 1 "Running gvfs-info \"$1\""
        gvfs-info "$1" 2> /dev/null | grep standard::content-type | cut -d' ' -f4
    elif gnomevfs-info --help 2>/dev/null 1>&2; then
        DEBUG 1 "Running gnomevfs-info \"$1\""
        gnomevfs-info --slow-mime "$1" 2> /dev/null | grep "^MIME" | cut -d ":" -f 2 | sed s/"^ "//
    fi

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

info_generic()
{
    if mimetype --version >/dev/null 2>&1; then
        DEBUG 1 "Running mimetype --brief --dereference \"$1\""
        mimetype --brief --dereference "$1"
    else
        DEBUG 1 "Running file --brief --dereference --mime-type \"$1\""
        /usr/bin/file --brief --dereference --mime-type "$1" 2> /dev/null
    fi

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

make_default_kde()
{
    # $1 is vendor-name.desktop
    # $2 is mime/type
    #
    # On KDE 3, add to $KDE_CONFIG_PATH/profilerc:
    # [$2 - 1]
    # Application=$1
    #
    # Remove all [$2 - *] sections, or even better,
    # renumber [$2 - *] sections and remove duplicate
    #
    # On KDE 4, add $2=$1 to $XDG_DATA_APPS/mimeapps.list
    #
    # Example file:
    #
    # [Added Associations]
    # text/plain=kde4-kate.desktop;kde4-kwrite.desktop;
    #
    # [Removed Associations]
    # text/plain=gnome-gedit.desktop;gnu-emacs.desktop;
    vendor="$1"
    mimetype="$2"
    if [ x"$KDE_SESSION_VERSION" = x"4" ]; then
        default_dir=`kde4-config --path xdgdata-apps 2> /dev/null | cut -d ':' -f 1`
        default_file="$default_dir/mimeapps.list"
    else
        default_dir=`kde-config --path config 2> /dev/null | cut -d ':' -f 1`
        default_file="$default_dir/profilerc"
    fi
    if [ -z "$default_dir" ]; then
        DEBUG 2 "make_default_kde: No kde runtime detected"
        return
    fi
    DEBUG 2 "make_default_kde $vendor $mimetype"
    DEBUG 1 "Updating $default_file"
    mkdir -p "$default_dir"
    [ -f "$default_file" ] || touch "$default_file"
    if [ x"$KDE_SESSION_VERSION" = x"4" ]; then
        [ -f "$default_file" ] || touch "$default_file"
        awk -v application="$vendor" -v mimetype="$mimetype" '
    BEGIN {
        prefix=mimetype "="
        associations=0
        found=0
        blanks=0
    }
    {
        suppress=0
        if (index($0, "[Added Associations]") == 1) {
            associations=1
        } else if (index($0, "[") == 1) {
            if (associations && !found) {
                print prefix application
                found=1
            }
            associations=0
        } else if ($0 == "") {
            blanks++
            suppress=1
        } else if (associations && index($0, prefix) == 1) {
            value=substr($0, length(prefix) + 1, length())
            split(value, apps, ";")
            value=application ";"
            count=0
            for (i in apps) {
              count++
            }
            for (i=0; i < count; i++) {
                if (apps[i] != application && apps[i] != "") {
                    value=value apps[i] ";"
                }
            }
            $0=prefix value
            found=1
        }
        if (!suppress) {
            while (blanks > 0) {
                print ""
                blanks--
            }
            print $0
        }
    }
    END {
        if (!found) {
            if (!associations) {
                print "[Added Associations]"
            }
            print prefix application
        }
        while (blanks > 0) {
            print ""
            blanks--
        }
    }
' "$default_file" > "${default_file}.new" && mv "${default_file}.new" "$default_file"
        eval 'kbuildsycoca4'$xdg_redirect_output
    else
        awk -v application="$vendor" -v mimetype="$mimetype" '
    BEGIN {
        header_start="[" mimetype " - "
        suppress=0
    }
    {
        if (index($0, header_start) == 1 )
            suppress=1
        else
            if (/^\[/) { suppress=0 }

        if (!suppress) {
            print $0
        }
    }
    END {
        print ""
        print "[" mimetype " - 1]"
        print "Application=" application
        print "AllowAsDefault=true"
        print "GenericServiceType=Application"
        print "Preference=1"
        print "ServiceType=" mimetype
    }
' "$default_file" > "${default_file}.new" && mv "${default_file}.new" "$default_file"
    fi
}

make_default_generic()
{
    # $1 is vendor-name.desktop
    # $2 is mime/type
    # Add $2=$1 to XDG_CONFIG_HOME/mimeapps.list
    xdg_config_home="$XDG_CONFIG_HOME"
    [ -n "$xdg_config_home" ] || xdg_config_home="$HOME/.config"
    default_file="$xdg_config_home/mimeapps.list"
    DEBUG 2 "make_default_generic $1 $2"
    DEBUG 1 "Updating $default_file"
    [ -f "$default_file" ] || touch "$default_file"
    awk -v mimetype="$2" -v application="$1" '
    BEGIN {
        prefix=mimetype "="
        indefault=0
        added=0
        blanks=0
        found=0
    }
    {
        suppress=0
        if (index($0, "[Default Applications]") == 1) {
            indefault=1
            found=1
        } else if (index($0, "[") == 1) {
            if (!added && indefault) {
                print prefix application
                added=1
            }
            indefault=0
        } else if ($0 == "") {
            suppress=1
            blanks++
        } else if (indefault && !added && index($0, prefix) == 1) {
                $0=prefix application
                added=1
        }
        if (!suppress) {
            while (blanks > 0) {
                print ""
                blanks--
            }
            print $0
        }
    }
    END {
        if (!added) {
            if (!found) {
                print ""
                print "[Default Applications]"
            }
            print prefix application
        }
        while (blanks > 0) {
            print ""
            blanks--
        }
    }
' "$default_file" > "${default_file}.new" && mv "${default_file}.new" "$default_file"
}

search_desktop_file()
{
    local MIME="$1"
    local dir="$2"

    grep -l "$MIME;" "$dir/"*.desktop 2>/dev/null

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

defapp_fallback()
{
    MIME="$1"

    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/

    preference=-1
    desktop_file=""
    for d in `echo "$xdg_user_dir:$xdg_system_dirs" | sed 's/:/ /g'`; do
       for x in `search_desktop_file "$MIME" "$d/applications"`; do
          pref=0`awk -F"=" '/InitialPreference=/ {print($2)}' "$x"`
          DEBUG 2 " Checking $x"

          if [ $pref -gt $preference ]; then
             DEBUG 2 "   Select $x [ $preference => $pref ]"
             preference=$pref
             desktop_file=$x
          fi
       done
    done

    if [ -n "$desktop_file" ] ; then
       echo `basename $desktop_file`
       exit_success
    fi
}

check_mimeapps_list()
{
    local mimetype="$1" dir="$2"
    local desktop oldifs="$IFS"

    IFS=:
    for desktop in $XDG_CURRENT_DESKTOP ''; do
        IFS="$oldifs"
        if [ -n "$desktop" ]; then
            local prefix=$(echo "$desktop-" | tr '[:upper:]' '[:lower:]')
        else
            local prefix=
        fi
        local mimeapps_list="$dir/${prefix}mimeapps.list"
        if [ -f "$mimeapps_list" ] ; then
            DEBUG 2 "Checking $mimeapps_list"
            local result=$(awk -v mimetype="$mimetype" '
    BEGIN {
        prefix=mimetype "="
        indefault=0
        found=0
    }
    {
        if (index($0, "[Default Applications]") == 1) {
            indefault=1
        } else if (index($0, "[") == 1) {
            indefault=0
        } else if (!found && indefault && index($0, prefix) == 1) {
            print substr($0, length(prefix) +1, length())
            found=1
        }
    }
' "$mimeapps_list" | cut -d ';' -f 1)
            if [ -n "$result" ]; then
                # $result could be a ; separated list of .desktop files
                # use the first on the system
                IFS=\;
                for app in $result; do
                    IFS="$oldifs"
                    exists=$(desktop_file_to_binary "$app")
                    if [ -n "$exists" ]; then
                        echo "$app"
                        exit_success
                    fi
                done
            fi
        fi
    done
}

defapp_generic()
{
    MIME="$1"
    xdg_config_home="$XDG_CONFIG_HOME"
    [ -n "$xdg_config_home" ] || xdg_config_home="$HOME/.config"
    xdg_config_dirs="$XDG_CONFIG_DIRS"
    [ -n "$xdg_config_dirs" ] || xdg_config_dirs="/etc/xdg"
    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/

    local oldifs="$IFS" dir

    IFS=:
    for dir in $xdg_config_home $xdg_config_dirs; do
        IFS="$oldifs"
        check_mimeapps_list "$MIME" "$dir"
    done

    IFS=:
    for dir in $xdg_user_dir $xdg_system_dirs; do
        IFS="$oldifs"
        check_mimeapps_list "$MIME" "$dir/applications"
    done

    for x in `echo "$xdg_user_dir:$xdg_system_dirs" | sed 's/:/ /g'`; do
       for prefix in "$XDG_MENU_PREFIX" ""; do
          DEBUG 2 "Checking $x/applications/${prefix}defaults.list and $x/applications/${prefix}mimeinfo.cache"
          trader_result=`grep "$MIME=" $x/applications/${prefix}defaults.list $x/applications/${prefix}mimeinfo.cache 2> /dev/null | head -n 1 | cut -d '=' -f 2 | cut -d ';' -f 1`
          if [ -n "$trader_result" ] ; then
              echo $trader_result
              exit_success
          fi
       done
    done

    defapp_fallback $MIME
    exit_success
}

defapp_kde()
{
    MIME="$1"

    if [ -n "${KDE_SESSION_VERSION}" ]; then
      case "${KDE_SESSION_VERSION}" in
        4)
          KTRADER=`which ktraderclient 2> /dev/null`
        ;;
        5)
          KTRADER=`which ktraderclient${KDE_SESSION_VERSION} 2> /dev/null`
        ;;
      esac
    else
        KTRADER=`which ktradertest 2> /dev/null`
    fi
    if [ -n "$KTRADER" ] ; then
        DEBUG 1 "Running KDE trader query \"$MIME\" mimetype and \"Application\" servicetype"
        trader_result=`$KTRADER --mimetype "$MIME" --servicetype Application 2>/dev/null \
            | grep -E "^DesktopEntryPath : |\.desktop$" | head -n1 | sed "s/^DesktopEntryPath : '\(.*\.desktop\)'\$/\1/"`
        if [ -n "$trader_result" ] ; then
            basename "$trader_result"
            exit_success
        else
            exit_failure_operation_failed
        fi
    else
        defapp_generic "$1"
    fi
}

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

mode=
action=
filename=
mimetype=

case $1 in
  install)
    action=install
    ;;

  uninstall)
    action=uninstall
    ;;

  query)
    shift

    if [ -z "$1" ] ; then
        exit_failure_syntax "query type argument missing"
    fi

    case $1 in
      filetype)
        action=info

        filename="$2"
        if [ -z "$filename" ] ; then
            exit_failure_syntax "FILE argument missing"
        fi
        case $filename in
          -*)
            exit_failure_syntax "unexpected option '$filename'"
            ;;
        esac
        check_input_file "$filename"
        filename=`readlink -f -- "$filename"`
        ;;

      default)
        action=defapp
        mimetype="$2"
        if [ -z "$mimetype" ] ; then
            exit_failure_syntax "mimetype argument missing"
        fi
        case $mimetype in
          -*)
            exit_failure_syntax "unexpected option '$mimetype'"
            ;;

          */*)
            # Ok
            ;;

          *)
            exit_failure_syntax "mimetype '$mimetype' is not in the form 'minor/major'"
            ;;
        esac
        ;;

      *)
      exit_failure_syntax "unknown query type '$1'"
      ;;
    esac
    ;;

  default)
    action=makedefault
    shift

    if [ -z "$1" ] ; then
        exit_failure_syntax "application argument missing"
    fi
    case $1 in
      -*)
        exit_failure_syntax "unexpected option '$1'"
        ;;

      *.desktop)
        filename="$1"
        ;;

      *)
        exit_failure_syntax "malformed argument '$1', expected *.desktop"
        ;;
    esac
    ;;

  *)
  exit_failure_syntax "unknown command '$1'"
  ;;
esac

shift


if [ "$action" = "makedefault" ]; then
    if [ -z "$1" ] ; then
        exit_failure_syntax "mimetype argument missing"
    fi

    while [ $# -gt 0 ] ; do
        case $1 in
          -*)
            exit_failure_syntax "unexpected option '$1'"
            ;;
        esac
        mimetype="$1"
        shift

        make_default_kde "$filename" "$mimetype"
        make_default_generic "$filename" "$mimetype"
    done
    exit_success
fi

if [ "$action" = "info" ]; then
    detectDE

    if [ x"$DE" = x"" ]; then
        if [ -x /usr/bin/file ]; then
            DE=generic
        fi
    fi

    case "$DE" in
        kde)
        info_kde "$filename"
        ;;

        gnome*|cinnamon|lxde|mate|xfce)
        info_gnome "$filename"
        ;;

        *)
        info_generic "$filename"
        ;;
    esac
    exit_failure_operation_impossible "no method available for quering MIME type of '$filename'"
fi

if [ "$action" = "defapp" ]; then
    detectDE

    case "$DE" in
        kde)
        defapp_kde "$mimetype"
        ;;

        *)
        defapp_generic "$mimetype"
        ;;
    esac
    exit_failure_operation_impossible "no method available for quering default application for '$mimetype'"
fi

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

    case $parm in
      --mode)
        if [ -z "$1" ] ; then
            exit_failure_syntax "mode argument missing for --mode"
        fi
        case "$1" in
          user)
            mode="user"
            ;;

          system)
            mode="system"
            ;;

          *)
            exit_failure_syntax "unknown mode '$1'"
            ;;
        esac
        shift
        ;;

      --novendor)
        vendor=false
        ;;

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

      *)
        if [ -n "$filename" ] ; then
            exit_failure_syntax "unexpected argument '$parm'"
        fi

        filename="$parm"
        check_input_file "$filename"
        ;;
    esac
done

if [ -z "$action" ] ; then
    exit_failure_syntax "command argument missing"
fi

if [ -n "$XDG_UTILS_INSTALL_MODE" ] ; then
    if [ "$XDG_UTILS_INSTALL_MODE" = "system" ] ; then
        mode="system"
    elif [ "$XDG_UTILS_INSTALL_MODE" = "user" ] ; then
        mode="user"
    fi
fi

if [ -z "$mode" ] ; then
    if [ `whoami` = "root" ] ; then
        mode="system"
    else
        mode="user"
    fi
fi

if [ -z "$filename" ] ; then
    exit_failure_syntax "mimetypes-file argument missing"
fi

if [ "$vendor" =  "true" -a "$action" = "install" ] ; then
    check_vendor_prefix "$filename"
fi

xdg_base_dir=
xdg_dir_name=mime/packages/

xdg_user_dir="$XDG_DATA_HOME"
[ -n "$xdg_user_dir" ] || xdg_user_dir="$HOME/.local/share"
[ x"$mode" = x"user" ] && xdg_base_dir="$xdg_user_dir/mime"
xdg_user_dir="$xdg_user_dir/$xdg_dir_name"

xdg_system_dirs="$XDG_DATA_DIRS"
[ -n "$xdg_system_dirs" ] || xdg_system_dirs=/usr/local/share/:/usr/share/
for x in `echo $xdg_system_dirs | sed 's/:/ /g'`; do
    if [ -w $x/$xdg_dir_name ] ; then
        [ x"$mode" = x"system" ] && xdg_base_dir="$x/mime"
        xdg_global_dir="$x/$xdg_dir_name"
        break
    fi
done
[ -w $xdg_global_dir ] || xdg_global_dir=
DEBUG 3 "xdg_user_dir: $xdg_user_dir"
DEBUG 3 "xdg_global_dir: $xdg_global_dir"

# Find KDE3 mimelnk directory
kde_user_dir=
kde_global_dir=
kde_global_dirs=`kde${KDE_SESSION_VERSION}-config --path mime 2> /dev/null`
DEBUG 3 "kde_global_dirs: $kde_global_dirs"
first=
for x in `echo $kde_global_dirs | sed 's/:/ /g'` ; do
    if [ -z "$first" ] ; then
        first=false
        kde_user_dir="$x"
    elif [ -w $x ] ; then
        kde_global_dir="$x"
    fi
done
DEBUG 3 "kde_user_dir: $kde_user_dir"
DEBUG 3 "kde_global_dir: $kde_global_dir"

# TODO: Gnome legacy support
# See http://forums.fedoraforum.org/showthread.php?t=26875
gnome_user_dir="$HOME/.gnome/apps"
gnome_global_dir=/usr/share/gnome/apps
[ -w $gnome_global_dir ] || gnome_global_dir=
DEBUG 3 "gnome_user_dir: $gnome_user_dir"
DEBUG 3 "gnome_global_dir: $gnome_global_dir"

if [ x"$mode" = x"user" ] ; then
    xdg_dir="$xdg_user_dir"
    kde_dir="$kde_user_dir"
    gnome_dir="$gnome_user_dir"
    my_umask=077
else
    xdg_dir="$xdg_global_dir"
    kde_dir="$kde_global_dir"
    gnome_dir="$gnome_global_dir"
    my_umask=022
    if [ -z "${xdg_dir}${kde_dir}${gnome_dir}" ] ; then
        exit_failure_operation_impossible "No writable system mimetype directory found."
    fi
fi

# echo "[xdg|$xdg_user_dir|$xdg_global_dir]"
# echo "[kde|$kde_user_dir|$kde_global_dir]"
# echo "[gnome|$gnome_user_dir|$gnome_global_dir]"
# echo "[using|$xdg_dir|$kde_dir|$gnome_dir]"

basefile=`basename "$filename"`
#[ -z $vendor ] || basefile="$vendor-$basefile"

mimetypes=
if [ -n "$kde_dir" ] ; then
    DEBUG 2 "KDE3 mimelnk directory found, extracting mimetypes from XML file"

    mimetypes=`awk < "$filename" '
# Strip XML comments
BEGIN {
 suppress=0
}
{
 do
    if (suppress) {
       if (match($0,/-->/)) {
           $0=substr($0,RSTART+RLENGTH)
           suppress=0
       }
       else {
           break
       }
    }
    else {
       if (match($0,/<!--/)) {
           if (RSTART>1) print substr($0,0,RSTART)
           $0=substr($0,RSTART+RLENGTH)
           suppress=1
       }
       else {
           if ($0) print $0
           break
       }
    }
 while(1)
}
' | awk '
# List MIME types listed in <mime-type> tags
BEGIN {
  RS="<"
}
/^mime-info/, /^\/mime-info/ {
  if (match($0,/^mime-type/)) {
    if (match($0,/type="[^"]*/) || match($0,/type='"'"'[^'"'"']*/)) {
      print substr($0,RSTART+6,RLENGTH-6)
    }
  }
}'`
fi

DEBUG 1 "$action mimetype in $xdg_dir"

case $action in
    install)
        save_umask=`umask`
        umask $my_umask

        for x in $xdg_dir ; do
            mkdir -p $x
            eval 'cp $filename $x/$basefile'$xdg_redirect_output
        done

        if [ -n "$mimetypes" ] ; then
            # No quotes around $mimetypes
            for x in $mimetypes ; do
                DEBUG 1 "Installing $kde_dir/$x.desktop (KDE 3.x support)"
                mkdir -p `dirname $kde_dir/$x.desktop`
                awk < "$filename" '
# Strip XML comments
BEGIN {
 suppress=0
}
{
 do
    if (suppress) {
       if (match($0,/-->/)) {
           $0=substr($0,RSTART+RLENGTH)
           suppress=0
       }
       else {
           break
       }
    }
    else {
       if (match($0,/<!--/)) {
           if (RSTART>1) print substr($0,0,RSTART)
           $0=substr($0,RSTART+RLENGTH)
           suppress=1
       }
       else {
           if ($0) print $0
           break
       }
    }
 while(1)
}
' | awk > $kde_dir/$x.desktop '
# Extract mimetype $x from the XML file $filename
# Note that bash requires us to escape a single quote as '"'"'
BEGIN {
  the_type=ARGV[1]
  the_source=ARGV[2]
  ARGC=1
  RS="<"
  found=0
  glob_patterns=""
}
/^mime-info/, /^\/mime-info/ {
  if (match($0,/^mime-type/)) {
    if (match($0,/type="[^"]*/) || match($0,/type='"'"'[^'"'"']*/)) {
      if (substr($0,RSTART+6,RLENGTH-6) == the_type) {
        found=1
        print "[Desktop Entry]"
        print "# Installed by xdg-mime from " the_source
        print "Type=MimeType"
        print "MimeType=" the_type
        the_icon=the_type
        sub("/", "-", the_icon)
        print "Icon=" the_icon
      }
    }
  }
  else if (found) {
    if (match($0,/^\/mime-type/)) {
      if (glob_patterns)
         print "Patterns=" glob_patterns
      exit 0
    }

    if (match($0,/^sub-class-of/)) {
      if (match($0,/type="[^"]*/) || match($0,/type='"'"'[^'"'"']*/)) {
        print "X-KDE-IsAlso=" substr($0,RSTART+6,RLENGTH-6)
      }
      else {
        print "Error: '"'"'type'"'"' argument missing in " RS $0
        exit 1
      }
    }
    if (match($0,/^glob/)) {
      if (match($0,/pattern="[^"]*/) || match($0,/pattern='"'"'[^'"'"']*/)) {
        glob_patterns = glob_patterns substr($0,RSTART+9,RLENGTH-9) ";"
      }
      else {
        print "Error: '"'"'pattern'"'"' argument missing in " RS $0
        exit 1
      }
    }
    if (match($0,/^comment/)) {
      if (match($0,/xml:lang="[^"]*/) || match($0,/xml:lang='"'"'[^'"'"']*/)) {
        lang=substr($0,RSTART+10,RLENGTH-10)
      }
      else {
        lang=""
      }
      if (match($0,/>/)) {
        comment=substr($0,RSTART+1)
        sub("&lt;", "<", comment)
        sub("&gt;", ">", comment)
        sub("&amp;", "\\&", comment)
        if (lang)
           print "Comment[" lang "]=" comment
        else
           print "Comment=" comment
      }
    }
  }
}
END {
  if (!found) {
    print "Error: Mimetype '"'"'" the_type "'"'"' not found"
    exit 1
  }
}
' $x $basefile
                if [ "$?" = "1" ] ; then
                    grep -A 10 "^Error:" $kde_dir/$x.desktop >&2
                    rm $kde_dir/$x.desktop
                    exit 1
                fi
            done
        fi

        umask $save_umask
        ;;

    uninstall)
        for x in $xdg_dir ; do
            rm -f $x/$basefile
        done

        # No quotes around $mimetypes
        for x in $mimetypes ; do
            if grep '^# Installed by xdg-mime' $kde_dir/$x.desktop >/dev/null 2>&1; then
                DEBUG 1 "Removing $kde_dir/$x.desktop (KDE 3.x support)"
                rm -f $kde_dir/$x.desktop
            fi
        done
        ;;
esac

update_mime_database $xdg_base_dir

exit_success