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#!/bin/sh -e
# Determine the most appropriate Apport user interface (GTK/KDE/CLI) and file a
# bug with it.
#
# Copyright (C) 2009 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.  See http://www.gnu.org/copyleft/gpl.html for
# the full text of the license.

# Explicitly set the PATH to that of ENV_SUPATH in /etc/login.defs. We need do
# this so that confined applications using ubuntu-browsers.d/ubuntu-integration
# cannot abuse the environment to escape AppArmor confinement via this script
# (LP: #1045986). This can be removed once AppArmor supports environment
# filtering (LP: #1045985)
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

if [ "${0%-collect}" != "$0" ]; then
    prefix=python3
    if ! python3 -c 'import apport' 2>/dev/null; then
        echo "You need to run 'sudo apt-get install python3-apport' for apport-collect to work." >&2
        exit 1
    fi
fi

# locate path of a particular program
find_program() {
    for p in /usr/local/bin /usr/bin /usr/local/share/apport /usr/share/apport; do
	if [ -x $p/$1 ]; then
	    RET="$prefix $p/$1"
	    return
	fi
    done
    unset RET
}

# determine which UIs are available, and where
find_programs() {
    find_program "apport-cli"
    CLI="$RET"
    find_program "apport-gtk"
    GTK="$RET"
    find_program "apport-kde"
    KDE="$RET"
}

#
# main
#

find_programs

export APPORT_INVOKED_AS="$0"

# check for X
if [ -z "$DISPLAY" -a -z "$WAYLAND_DISPLAY" ]; then
    if [ -n "$CLI" ] ; then
        $CLI "$@"
    else
        echo "Neither \$DISPLAY nor \$WAYLAND_DISPLAY is set. You need apport-cli to make this program work." >&2
        exit 1
    fi

# do we have a running Gnome/KDE session?
elif pgrep -u `id -u` -x gnome-session >/dev/null && \
    [ -n "$GTK" ]; then
    $GTK "$@"
elif pgrep -u `id -u` -x ksmserver >/dev/null && \
    [ -n "$KDE" ]; then
    $KDE "$@"

# fall back to calling whichever is available
elif [ -n "$GTK" ]; then
    $GTK "$@"
elif [ -n "$KDE" ]; then
    $KDE "$@"
elif [ -n "$CLI" ]; then
    if [ -z "$TERM" ] && [ -x "$XTERM" ]; then
         "$XTERM" -e "$CLI" "$@"
    else
        $CLI "$@"
    fi

else
    echo "Neither apport-gtk, apport-kde, apport-cli, or whoopsie-upload-all are installed. Install either to make this program work." >&2
    exit 1
fi