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Commit | Line | Data |
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e9155818 | 1 | #!/usr/bin/env bash |
b89c6db3 JM |
2 | |
3 | usage() { | |
4 | if [ "$*" ]; then | |
5 | echo "$*" | |
6 | echo | |
7 | fi | |
96bc3d30 | 8 | echo "Usage: ${NAME} [--listen PORT] [--vnc VNC_HOST:PORT] [--cert CERT]" |
b89c6db3 | 9 | echo |
f2538f33 JM |
10 | echo "Starts the WebSockets proxy and a mini-webserver and " |
11 | echo "provides a cut-and-paste URL to go to." | |
6f514864 | 12 | echo |
f2538f33 | 13 | echo " --listen PORT Port for proxy/webserver to listen on" |
96bc3d30 | 14 | echo " Default: 6080" |
b89c6db3 JM |
15 | echo " --vnc VNC_HOST:PORT VNC server host:port proxy target" |
16 | echo " Default: localhost:5900" | |
96bc3d30 JM |
17 | echo " --cert CERT Path to combined cert/key file" |
18 | echo " Default: self.pem" | |
3516bdf3 JM |
19 | echo " --web WEB Path to web files (e.g. vnc.html)" |
20 | echo " Default: ./" | |
b89c6db3 JM |
21 | exit 2 |
22 | } | |
23 | ||
24 | NAME="$(basename $0)" | |
b992f7c7 | 25 | HERE="$(cd "$(dirname "$0")" && pwd)" |
96bc3d30 | 26 | PORT="6080" |
b89c6db3 | 27 | VNC_DEST="localhost:5900" |
96bc3d30 | 28 | CERT="" |
3516bdf3 | 29 | WEB="" |
b89c6db3 JM |
30 | proxy_pid="" |
31 | ||
32 | die() { | |
33 | echo "$*" | |
34 | exit 1 | |
35 | } | |
36 | ||
37 | cleanup() { | |
38 | trap - TERM QUIT INT EXIT | |
39 | trap "true" CHLD # Ignore cleanup messages | |
40 | echo | |
b89c6db3 JM |
41 | if [ -n "${proxy_pid}" ]; then |
42 | echo "Terminating WebSockets proxy (${proxy_pid})" | |
43 | kill ${proxy_pid} | |
44 | fi | |
45 | } | |
46 | ||
47 | # Process Arguments | |
48 | ||
49 | # Arguments that only apply to chrooter itself | |
50 | while [ "$*" ]; do | |
51 | param=$1; shift; OPTARG=$1 | |
52 | case $param in | |
96bc3d30 JM |
53 | --listen) PORT="${OPTARG}"; shift ;; |
54 | --vnc) VNC_DEST="${OPTARG}"; shift ;; | |
55 | --cert) CERT="${OPTARG}"; shift ;; | |
3516bdf3 | 56 | --web) WEB="${OPTARG}"; shift ;; |
96bc3d30 | 57 | -h|--help) usage ;; |
b89c6db3 | 58 | -*) usage "Unknown chrooter option: ${param}" ;; |
96bc3d30 | 59 | *) break ;; |
b89c6db3 JM |
60 | esac |
61 | done | |
62 | ||
63 | # Sanity checks | |
64 | which netstat >/dev/null 2>&1 \ | |
65 | || die "Must have netstat installed" | |
66 | ||
cf068be2 | 67 | netstat -ltn | grep -qs "${PORT} .*LISTEN" \ |
96bc3d30 | 68 | && die "Port ${PORT} in use. Try --listen PORT" |
b89c6db3 JM |
69 | |
70 | trap "cleanup" TERM QUIT INT EXIT | |
71 | ||
0f7f146f | 72 | # Find vnc.html |
3516bdf3 JM |
73 | if [ -n "${WEB}" ]; then |
74 | if [ ! -e "${WEB}/vnc.html" ]; then | |
75 | die "Could not find ${WEB}/vnc.html" | |
76 | fi | |
77 | elif [ -e "$(pwd)/vnc.html" ]; then | |
96bc3d30 | 78 | WEB=$(pwd) |
0f7f146f | 79 | elif [ -e "${HERE}/../vnc.html" ]; then |
96bc3d30 | 80 | WEB=${HERE}/../ |
0f7f146f | 81 | elif [ -e "${HERE}/vnc.html" ]; then |
96bc3d30 | 82 | WEB=${HERE} |
3516bdf3 JM |
83 | elif [ -e "${HERE}/../share/novnc/vnc.html" ]; then |
84 | WEB=${HERE}/../share/novnc/ | |
0f7f146f JM |
85 | else |
86 | die "Could not find vnc.html" | |
87 | fi | |
0f7f146f | 88 | |
96bc3d30 JM |
89 | # Find self.pem |
90 | if [ -n "${CERT}" ]; then | |
91 | if [ ! -e "${CERT}" ]; then | |
92 | die "Could not find ${CERT}" | |
93 | fi | |
94 | elif [ -e "$(pwd)/self.pem" ]; then | |
95 | CERT="$(pwd)/self.pem" | |
96 | elif [ -e "${HERE}/../self.pem" ]; then | |
97 | CERT="${HERE}/../self.pem" | |
98 | elif [ -e "${HERE}/self.pem" ]; then | |
99 | CERT="${HERE}/self.pem" | |
b89c6db3 | 100 | else |
96bc3d30 | 101 | echo "Warning: could not find self.pem" |
b89c6db3 JM |
102 | fi |
103 | ||
6f514864 SR |
104 | # try to find websockify (prefer local, try global, then download local) |
105 | if [[ -e ${HERE}/websockify ]]; then | |
106 | WEBSOCKIFY=${HERE}/websockify/run | |
107 | ||
108 | if [[ ! -x $WEBSOCKIFY ]]; then | |
109 | echo "The path ${HERE}/websockify exists, but $WEBSOCKIFY either does not exist or is not executable." | |
110 | echo "If you inteded to use an installed websockify package, please remove ${HERE}/websockify." | |
111 | exit 1 | |
112 | fi | |
113 | ||
114 | echo "Using local websockify at $WEBSOCKIFY" | |
115 | else | |
116 | WEBSOCKIFY=$(which websockify 2>/dev/null) | |
117 | ||
118 | if [[ $? -ne 0 ]]; then | |
119 | echo "No installed websockify, attempting to clone websockify..." | |
120 | WEBSOCKIFY=${HERE}/websockify/run | |
121 | git clone https://github.com/kanaka/websockify | |
122 | git update-index --assume-unchanged websockify | |
123 | ||
124 | if [[ ! -e $WEBSOCKIFY ]]; then | |
125 | echo "Unable to locate ${HERE}/websockify/run after downloading" | |
126 | exit 1 | |
127 | fi | |
128 | ||
129 | echo "Using local websockify at $WEBSOCKIFY" | |
130 | else | |
131 | echo "Using installed websockify at $WEBSOCKIFY" | |
132 | fi | |
133 | fi | |
134 | ||
96bc3d30 | 135 | echo "Starting webserver and WebSockets proxy on port ${PORT}" |
6f514864 SR |
136 | #${HERE}/websockify --web ${WEB} ${CERT:+--cert ${CERT}} ${PORT} ${VNC_DEST} & |
137 | ${WEBSOCKIFY} --web ${WEB} ${CERT:+--cert ${CERT}} ${PORT} ${VNC_DEST} & | |
b89c6db3 JM |
138 | proxy_pid="$!" |
139 | sleep 1 | |
f2538f33 | 140 | if ! ps -p ${proxy_pid} >/dev/null; then |
b89c6db3 JM |
141 | proxy_pid= |
142 | echo "Failed to start WebSockets proxy" | |
143 | exit 1 | |
144 | fi | |
145 | ||
19ed81fd | 146 | echo -e "\n\nNavigate to this URL:\n" |
96bc3d30 | 147 | echo -e " http://$(hostname):${PORT}/vnc.html?host=$(hostname)&port=${PORT}\n" |
b89c6db3 JM |
148 | echo -e "Press Ctrl-C to exit\n\n" |
149 | ||
96bc3d30 | 150 | wait ${proxy_pid} |