#!/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>
#   Copyright 2006, Kevin Krammer <kevin.krammer@gmx.at>
#   Copyright 2006, Jeremy White <jwhite@codeweavers.com>
#
#   LICENSE:
#
#---------------------------------------------

manualpage()
{
cat << _MANUALPAGE
_MANUALPAGE
}

usage()
{
cat << _USAGE
_USAGE
}

#@xdg-utils-common@

# 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 $?
        fi
    fi

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

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

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

open_xfce()
{
    exo-open "$1"

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

open_generic_xdg_mime()
{
    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
            # 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
                    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()
{
    # Paths or file:// URLs
    if (echo "$1" | grep -q '^file://' ||
        ! echo "$1" | egrep -q '^[a-zA-Z+\.\-]+:'); then

        local file="$1"

        # Decode URLs
        if echo "$file" | grep -q '^file:///'; then
            file=${file#file://}
            file="$(printf "$(echo "$file" | sed -e 's@%\([a-f0-9A-F]\{2\}\)@\\x\1@g')")"
        fi
        check_input_file "$file"

        open_generic_xdg_mime "$file"

        if [ -f /etc/debian_version ] &&
            which run-mailcap 2>/dev/null 1>&2; then
            run-mailcap --action=view "$file"
            if [ $? -eq 0 ]; then
                exit_success
            fi
        fi

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

    IFS=":"
    for browser in $BROWSER; do
        if [ x"$browser" != x"" ]; then

            browser_with_arg=`printf "$browser" "$1" 2>/dev/null`
            if [ $? -ne 0 ]; then
                browser_with_arg=$browser;
            fi

            if [ x"$browser_with_arg" = x"$browser" ]; then
                "$browser" "$1";
            else eval '$browser_with_arg'$xdg_redirect_output;
            fi

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

    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 (echo "$1" | grep -q '^file://' ||
        ! echo "$1" | egrep -q '^[a-zA-Z+\.\-]+:')
    then
        local file="$(echo "$1" | sed 's%^file://%%')"

        # 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
}

[ 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

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

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

    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