forked from Scout24/kiosk-browser
/
xsession.sh
executable file
·231 lines (194 loc) · 8 KB
/
xsession.sh
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
#!/bin/bash
exec &> >(exec logger -t "kiosk-browser[$$]" )
# sanitize environment
export LANG=en_US LANGUAGE=en_US LC_ALL=en_US.UTF-8
unset ${!XDG_*}
set -x
KILL_ON_EXIT=
HOME=$( mktemp -d /tmp/kiosk-browser.HOME.XXXXXXXXXXXXX )
function exittrap {
procs=( $KILL_ON_EXIT $(jobs -p))
kill -TERM ${procs[@]}
(
# wait in background for all procs to be gone before removing the old home directory
# reason is that nodm KILLs the session 2 seconds after TERMinating it
sleep 5 &
wait $!
kill -KILL $KILL_ON_EXIT ${procs[@]} &>/dev/null
rm -Rf $HOME
pstree -paul $USER
pkill -KILL -e -u $USER # harakiri
) </dev/null &
}
trap exittrap TERM EXIT # kill subprocesses on exit
# dump what we got so far
declare -p
pstree -paul $USER
# Wait 30 seconds for network by checking for default route
(( end_time=SECONDS+30 ))
until (( SECONDS > end_time)) || [[ "$(ip route)" == *default* ]] ; do
sleep 2 &
wait $!
done
# show debug info for 60 seconds as overlay
{
echo "Welcome to the Kiosk Browser (http://github.com/schlomo/kiosk-browser)"
echo
echo "This is $(uname -n)"
echo
if type -p networkctl &>/dev/null ; then
networkctl status
else
ip a | grep -E 'UP|inet'
echo
ip route
echo
sed -e '/^#/d;/^$/d' /etc/resolv.conf
fi
echo
perl -e '$/ = undef; $d=<>; $d =~ m/.*(lease \{.*?\})$/s ; print $1' $(ps ax | grep dhclient | sed -ne "s/.* \(\/[^ ]\+\.lease[s]\?\).*/\1/p") <<<""
echo
echo "This message will self-destruct in 60 seconds"
} | sed -e 's/●/ /g' | osd_cat --offset 10 --indent 10 --colour green --outline 2 --font 10x20 --lines 50 --delay 60 &
disown -a # forget about running osd_cat, it will terminate itself anyway
# window manager helps with fullscreen, window manager must support XINERAMA for multi-screen setups
openbox --debug --config-file /usr/share/kiosk-browser/openbox-rc.xml &
# cache xrandr configuration
XRANDR_OUTPUT="$(xrandr)"
function xrandr_find_port {
# find connected port matching pattern
sed -n -e "/$1.* connect/s/^\([^ ]\+\).*/\1/p" <<<"$XRANDR_OUTPUT"
}
if test -r /etc/default/kiosk-browser ; then
source /etc/default/kiosk-browser
fi
if [[ ! "$KIOSK_BROWSER_PORTS" ]] ; then
# set . as a built-in default to use the first connected port that xrandr reports
KIOSK_BROWSER_PORTS=.
fi
if [[ ! "$KIOSK_BROWSER_START_PAGE" ]] ; then
# point to our github page as built-in default
KIOSK_BROWSER_START_PAGE=https://github.com/schlomo/kiosk-browser
fi
KIOSK_BROWSER_WATCHDOG_CHECK_INTERVAL="${KIOSK_BROWSER_WATCHDOG_CHECK_INTERVAL:-313}"
if [[ ! "$KIOSK_BROWSER_WATCHDOG_TIMEOUT" ]] ; then
# default stale screen watchdog is 1h
KIOSK_BROWSER_WATCHDOG_TIMEOUT=3600
fi
if [[ ! "$KIOSK_BROWSER_VNC_VIEWER_DISPLAY" ]] ; then
# disable VNC viewer by default
KIOSK_BROWSER_VNC_VIEWER_DISPLAY=-1
fi
# configure displays
xrandr $(
xrandr_position=
for (( c=0 ; c<${#KIOSK_BROWSER_PORTS[@]} ; c++ )) ; do
port=$(xrandr_find_port "${KIOSK_BROWSER_PORTS[c]}")
if [[ "$port" ]] ; then
# / we use xrandr_position as indicator of first port
echo "--output $port ${KIOSK_BROWSER_XRANDR_EXTRA_OPTS[c]} $( [[ -z "$xrandr_position" ]] && echo --primary ) $xrandr_position --auto"
xrandr_position="--right-of $port"
else
: skipping configuration of "${KIOSK_BROWSER_PORTS[c]}" because it is not connected
fi
done
)
# wait a moment for displays to settle
sleep 5 &
wait $!
# xrandr configuration changed, update cache
XRANDR_OUTPUT="$(xrandr)"
# disable screen blanking
xset -dpms
xset s off
xset s noblank
# start watchdog, reboot system if screen stops to change
if (( KIOSK_BROWSER_WATCHDOG_TIMEOUT > 0 )) ; then
(
WATCHDOG_PID=$BASHPID
exec &> >(exec logger -t "kiosk-browser[$$]-watchdog[$WATCHDOG_PID]" )
: "Starting watchdog. Timeout is $KIOSK_BROWSER_WATCHDOG_TIMEOUT seconds, checking every $KIOSK_BROWSER_WATCHDOG_CHECK_INTERVAL seconds"
trap 'kill -TERM $(jobs -p)' TERM
LASTHASH=""
LASTCHANGED="$SECONDS"
while sleep $KIOSK_BROWSER_WATCHDOG_CHECK_INTERVAL & wait $! ; do
HASH=$(nice import -display :0 -window root -monochrome jpg:- | nice identify -format '%#' -)
#declare -p HASH LASTHASH LASTCHANGED SECONDS
if [[ "$HASH" = "$LASTHASH" ]] ; then
if (( SECONDS > LASTCHANGED + KIOSK_BROWSER_WATCHDOG_TIMEOUT )) ; then
sudo /sbin/reboot
break
fi
else
LASTHASH="$HASH"
LASTCHANGED="$SECONDS"
fi
done
) </dev/null 1>&2 &
fi
if [[ "$KIOSK_BROWSER_SHOW_SYSTEM_MONITOR" ]] ; then
xosview &
fi
# start vnc viewer if requested
if [[ "$KIOSK_BROWSER_VNC_VIEWER_DISPLAY" ]] && (( KIOSK_BROWSER_VNC_VIEWER_DISPLAY >= 0 )) ; then
vncviewer -fullscreen -viewonly -listen "$KIOSK_BROWSER_VNC_VIEWER_DISPLAY" &
fi
# remember system jobs
KILL_ON_EXIT=$(jobs -p)
# the wait below should wait only for the browsers and not hang on the system jobs
disown -a
# Ubuntu has chromium-browser and Debian wheezy has chromium
CHROME=$(type -p chromium-browser 2>/dev/null)
if [[ -z "$CHROME" ]] ; then
CHROME=$(type -p chromium 2>/dev/null)
fi
UZBL_CONFIG="set show_status=0
set geometry=maximized"
while sleep 5 & wait $!; do
# exit if no display given, use xwininfo to test for running X server
xwininfo -root &>/dev/null || exit 99
# if KIOSK_BROWSER_PORTS is set, assume that it specifies multiple screens connected.
for (( c=0 ; c<${#KIOSK_BROWSER_PORTS[@]} ; c++ )) ; do
port=$(xrandr_find_port "${KIOSK_BROWSER_PORTS[c]}")
[[ -z "$port" ]] && continue # skip for all invalid ports (that are not a number)
port_x=$(sed -ne "/$port/s#[^+].*+\([0-9]\+\)+.*#\1#p" <<<"$XRANDR_OUTPUT")
BROWSER_PROFILE_DIR=~/profile-$c
URL="${KIOSK_BROWSER_START_PAGE[c]:-$KIOSK_BROWSER_START_PAGE}"
# start with empty profile dir
[[ -d $BROWSER_PROFILE_DIR ]] && rm -Rf $BROWSER_PROFILE_DIR
mkdir -p $BROWSER_PROFILE_DIR
if [[ "$KIOSK_BROWSER_PROGRAM" == "epiphany" ]] && type -p epiphany-browser &>/dev/null ; then
epiphany-browser --class epiphany-$c --profile $BROWSER_PROFILE_DIR "$URL" &
PID=$!
sleep 10 &
wait $!
# Use PID to distinguish browsers
xdotool search --class epiphany-$c windowmove --sync $port_x 0 key F11
elif [[ "$KIOSK_BROWSER_PROGRAM" == "uzbl" ]] && type -p uzbl &>/dev/null ; then
uzbl -n uzbl-$c -c - "$URL" <<<"$UZBL_CONFIG" &
sleep 5 &
wait $!
xdotool search --class uzbl-$c windowmove --sync $port_x 0
else
$CHROME --user-data-dir=$BROWSER_PROFILE_DIR "${KIOSK_BROWSER_OPTIONS[@]}" --use-fake-ui-for-media-stream --no-first-run --start-fullscreen --app="$URL" &
PID=$!
# move new window to the current screen. We identify the window by the --user-data-dir option which appears in the window class name :-)
starttime=$SECONDS
while ! xdotool search --onlyvisible --pid $PID --name any windowmove --sync $port_x 0 ; do
if (( SECONDS-starttime > 30 )) ; then
killall -TERM ${CHROME##*/} # if we can't find a chrome window then we kill them all and try again, killall needs only basename
sleep 2 &
wait $!
killall -KILL ${CHROME##*/}
kill -KILL $(jobs -p) # kill all background jobs (= browsers) to restart outer while loop
break 2 # abort the for loop
fi
sleep 2 &
wait $!
done
fi
done
xdotool search xosview windowactivate # make sure xosview is visible
wait # for the browsers to finish
done
# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4