bin/midori-display: Initial version of the Midori Display x-session-manager script. Derived from impressive-display.
This commit is contained in:
Mike Gabriel
commit
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#!/bin/bash
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# uncomment for very verbose script debugging...
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#set -x
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# Copyright (C) 2012-2017 by Debian Edu project, http://wiki.debian.org/DebianEdu
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# 2012-2017, Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
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# 2016, Daniel Teichmann <daniel.letsplay007@gmail.com>
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# 2017, Benjamin Schlüter <bschlueter@posteo.de>
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# Midori Display is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Midori Display is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the
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# Free Software Foundation, Inc.,
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# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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# dependencies:
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# wmctrl
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# matchbox-window-manager
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# pulseaudio-utils
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# xprintidle
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# xdotool
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# xmodmap
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#
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# recommendations:
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# unclutter
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# pulseaudio
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# x11-xserver-utils
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VERSION="0.0.1"
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# Can be configured at "/etc/default/midori-display"
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DEFAULT_WWW_URI="file:///usr/share/doc/midori-display/midori-display.html"
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DEFAULT_RESOLUTION=""
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# all displays that need to be changed
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declare -A DISPLAYS
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# launch pulseaudio daemon if not already running
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WITH_PULSEAUDIO="yes"
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# hide idle mouse pointer
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HIDE_IDLE_POINTER="yes"
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# allocate "left-click" mouse button functionality to mouse buttons
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# 1-2-3 (left middle right) alike, i.e. esp. disable right click in
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# Midori sessions!
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POINTER_BUTTON_MAP="1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0"
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# default screensaver settings
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SCREENSAVER_SETTINGS=""
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# don't use an HTTP proxy by default
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HTTP_PROXY_URL=""
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# URI block list, if any
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unset URI_BLOCKLIST
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# log to stderr, if not set to "yes" in one of the config files...
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LOG_TO_SYSLOG=no
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# interval of browser inactivity before the session is reset automatically (in seconds)
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INACTIVITY_INTERVAL="300"
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if type -p xrandr 1>/dev/null; then
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currentOutput=`echo "$(xrandr)" | grep -w 'connected' | sed -r -e 's/connected.*//' | head -n 1`
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fi
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if [ -r /etc/default/midori-display ] && [ ! -d /etc/default/midori-display ]; then
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. /etc/default/midori-display
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fi
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if [ -r $HOME/.midori-display/config ] && [ ! -d $HOME/.midori-display/config ]; then
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. $HOME/.midori-display/config
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fi
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if [ "x$LOG_TO_SYSLOG" = "xyes" ]; then
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OUTPUT="logger -t midori-display"
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else
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OUTPUT="echo"
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fi
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workdir="$HOME/.midori-display"
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mkdir -p "$workdir"
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session_lock="$workdir/.session-lock.$$"
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midori_lock="$workdir/.midori-lock"
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midori_config_dir=`mktemp -d -p "$workdir" midori-display-profile-XXXXXX`
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# provide pulseaudio support in the browser session, if not
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# already available...
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if ! pacmd stat 1>/dev/null 2>/dev/null; then
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if [ "x$WITH_PULSEAUDIO" = "xyes" ]; then
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if which pulseaudio 1>/dev/null; then
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pulseaudio -D -n \
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-L 'module-udev-detect' \
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--exit-idle-time=65535
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fi
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fi
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fi
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# launch matchbox manager
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if ! wmctrl -m 1>/dev/null 2>/dev/null; then
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if which matchbox-window-manager 1>/dev/null; then
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matchbox-window-manager 1>/dev/null 2>/dev/null&
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fi
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fi
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# use unclutter to hide idle mouse pointers
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if [ "x$HIDE_IDLE_POINTER" = "xyes" ]; then
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if which unclutter 1>/dev/null; then
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unclutter 1>/dev/null 2>/dev/null &
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fi
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fi
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# hack mouse pointer functionality to e.g. disable "right-click" in Midori session
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sanitized_pointer_button_map=$(echo ${POINTER_BUTTON_MAP//[^0-9\ ]/} | sed -e 's/^\s*//' -e 's/\s*$//')
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count_buttons_pointer_button_map=$(echo -n "${sanitized_pointer_button_map//[0-9]/}"| wc -m)
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if [ "x$POINTER_BUTTON_MAP" = "x$sanitized_pointer_button_map" ] && \
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[ $count_buttons_pointer_button_map -lt 32 ]; then
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xmodmap -e "pointer = $POINTER_BUTTON_MAP"
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fi
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# if FAKE_HOSTNAME is not empty, use that string for hostname
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THIS_HOSTNAME=$(hostname -f)
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if [ -n "$FAKE_HOSTNAME" ]; then
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THIS_HOSTNAME="$FAKE_HOSTNAME"
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fi
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if `echo ${!DISPLAYS[@]} | grep -q "$THIS_HOSTNAME"`; then
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$OUTPUT "INFO: $THIS_HOSTNAME has extra properties. loading them.."
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if echo ${DISPLAYS[$THIS_HOSTNAME]} | grep -q "www_uri="; then
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WWW_URI=`echo ${DISPLAYS[$THIS_HOSTNAME]} | sed -r -e 's/(^|.*\|)www_uri=([^|]*).*/\2/'`
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else
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WWW_URI="$DEFAULT_WWW_URI"
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fi
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if echo ${DISPLAYS[$THIS_HOSTNAME]} | grep -q "res="; then
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RESOLUTION=`echo ${DISPLAYS[$THIS_HOSTNAME]} | sed -r -e 's/(^|.*\|)res=([^|]*).*/\2/'`
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else
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RESOLUTION="$DEFAULT_RESOLUTION"
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fi
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else
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WWW_URI="$DEFAULT_WWW_URI"
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RESOLUTION="$DEFAULT_RESOLUTION"
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fi
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if ! echo "$WWW_URI" | grep -q -E "^(file://|http://|https://).*"; then
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$OUTPUT "ERROR: WWW_URI format not supported: $WWW_URI"
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$OUTPUT " Use file://<path>/<index>.<html> or http(s)://<host>/<path>/<index>.<html>."
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$OUTPUT " Doing nothing."
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exit -1
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fi
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# if URI_BLOCKLIST is not set, populate it and limit access to the WWW_SERVER that WWW_URI points to only.
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if [ ! -v URI_BLOCKLIST ]; then
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URI_TYPE=`echo "$WWW_URI" | sed -r -e 's@(file://|http(|s)://)[^/]+/.*@\1@'`
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WWW_SERVER=""
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if echo "$URI_TYPE" | grep -q -E "^http(|s)://([^/]+)/.*"; then
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WWW_SERVER=`echo "$WWW_URI" | sed -r -e 's@^http(|s)://([^/]+)/.*@\2@'`
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fi
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URI_BLOCKLIST='^((?!'$URI_TYPE'.*'$WWW_SERVER'/).).*$'
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fi
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if [ -n "$URI_BLOCKLIST" ]; then
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URI_BLOCKLIST="-b $URI_BLOCKLIST"
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fi
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if [ -n "${RESOLUTION}" ]; then
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if type -p xrandr 1>/dev/null; then
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xrandr -d :0 --output "$(echo $currentOutput)" --mode $RESOLUTION
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fi
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fi
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# Set screensaver settings
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if which xset 1>/dev/null; then
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xset s ${SCREENSAVER_SETTINGS}
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fi
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# set some proxy related env variables, if requested...
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if [ -n "$HTTP_PROXY_URL" ]; then
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export http_proxy="$HTTP_PROXY_URL"
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export https_proxy="$HTTP_PROXY_URL"
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export ftp_proxy="$HTTP_PROXY_URL"
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fi
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function cleanup {
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if type -p xrandr 1>/dev/null; then
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$OUTPUT "Info: resetting resolution"
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xrandr -d :0 --output "$(echo $currentOutput)" --auto
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fi
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if [ -r "$midori_lock" ]; then
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midori_pid=$(cat "$midori_lock" | sed -e 's/[^0-9]*//g')
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if [ -n "$midori_pid" ]; then
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kill -0 $midori_pid 2>/dev/null && kill "$midori_pid"
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fi
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fi
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if [ -d "$midori_config_dir" ]; then
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rm -R "$midori_config_dir"
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fi
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for rmfile in $midori_lock \
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$session_lock \
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;
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do
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if [ -e "$rmfile" ]; then
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rm "$rmfile"
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fi
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done
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}
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trap "cleanup" SIGINT SIGTERM ERR EXIT
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function midori_loop {
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if [ "x$INACTIVITY_INTERVAL" != "x0" ]; then
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(
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set -x
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while [ -e "$session_lock" ]; do
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sleep 1
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if [ `xprintidle` -gt $(($INACTIVITY_INTERVAL*1000)) ]; then
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echo -n "RESTART" > $midori_lock
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$OUTPUT "INFO: Triggering browser restart, too much idling around..."
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# reset X11 idle counter by some harmless key event
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xdotool key Shift
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fi
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done
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set +x
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) &
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fi
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}
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function midori_session {
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if which midori 1>/dev/null; then
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while [ -e "$session_lock" ]; do
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$OUTPUT "INFO: Starting a new instance of the midori application."
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midori \
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-e Fullscreen \
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-e enable-plugins=false \
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-e enable-page-cache=false \
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-e open-new-pages-in=MIDORI_NEW_PAGE_CURRENT \
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-e close-buttons-on-tabs=false \
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-e show-menubar=false \
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-e show-statusbar=false \
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-e show-bookmarkbar=false \
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-e show-panel=false \
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-e show-crash-dialog=false \
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-e open-tabs-in-the-background=false \
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-e open-tabs-next-to-current=false \
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-e open-popups-in-tabs=false \
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-e enable-xss-auditor=false \
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-e enable-javascript=true \
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-e enable-developer-extras=false \
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-e enable-html5-database=true \
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-e enable-running-of-insecure-content=false \
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-e enable-display-of-insecure-content=false \
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-c "${midori_config_dir}" \
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${URI_BLOCKLIST} \
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-a "${WWW_URI}" &
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midori_pid=$!
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echo -n "$midori_pid" > "$midori_lock"
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while [ -r "$midori_lock" ] && [ "$(cat $midori_lock)" != "RESTART" ] && [ -e "$session_lock" ]; do
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sleep 1
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if ! kill -0 "$midori_pid" 2>/dev/null; then
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if [ -e ${session_lock} ]; then
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rm "${session_lock}"
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fi
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if [ -d "${midori_config_dir}" ]; then
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rm -R "${midori_config_dir}"
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fi
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break
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midori_config_dir=`mktemp -d -p "$workdir" midori-display-profile-XXXXXX`
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fi
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done
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kill -0 "$midori_pid" 2>/dev/null && kill "$midori_pid"
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$OUTPUT "INFO: The midori application has terminated."
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done
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else
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$OUTPUT "ERROR: The midori application is not installed."
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fi
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}
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function create_lock {
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touch "$session_lock"
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}
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### MAIN ###
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$OUTPUT "INFO: midori Display (version $VERSION)"
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$OUTPUT "INFO: HOSTNAME set to: $THIS_HOSTNAME"
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if [ -n "$WWW_URI" ]; then
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$OUTPUT "INFO: WWW_URI is configured. Using content from given URL: $WWW_URI"
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create_lock
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midori_loop
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else
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$OUTPUT "ERROR: WWW_URI hasn't been configured. Doing nothing."
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exit 0
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fi
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midori_session
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exit 0
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