blob: ba5b224109bed6399a8b8bd48ebcd18806e7d4bc (
plain)
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
|
#!/usr/bin/env bash
#
set -e
. /etc/default/derper
if [[ -z ${DERPER_USER} ]]; then
echo "DERPER_USER is not set via /etc/default/derper" >&2
exit 1
fi
if [[ -z ${CERTDIR} ]]; then
eval "CERTDIR=~${_user}/.cache/tailscale/derper-certs"
echo "CERTDIR is not set, fallback to default '${CERTDIR}' directory" >&2
fi
if [[ ! -e ${CERTDIR} ]]; then
mkdir -m 750 -p ${CERTDIR}
chown ${DERPER_USER}${DERPER_GROUP:+:}${DERPER_GROUP} ${CERTDIR}
fi
# according to: https://github.com/tailscale/tailscale/blob/651e0d8aad1e97df71ac09ee25274377995133dd/cmd/derper/cert.go#L63
parse_hostname() {
local hn="${1}"
while [[ ${hn} =~ (.*)[^a-zA-Z0-9\.-]+(.*) ]]; do
hn=${BASH_REMATCH[1]}${BASH_REMATCH[2]}
done
echo -n ${hn}
}
cp_cert() {
local suffix=".crt" mode=640 var="CERTFILE"
if [[ ${FUNCNAME[1]} == cp_key ]]; then
suffix=".key"
mode=600
var="KEYFILE"
fi
if [[ -z ${HOSTNAME} ]]; then
echo "${var} is set while HOSTNAME is not, ignore ${var}" >&2
else
local file="${CERTDIR%/}/$(parse_hostname ${HOSTNAME})${suffix}"
cp -f -L ${!var} ${file}
chown ${DERPER_USER}${DERPER_GROUP:+:}${DERPER_GROUP} ${file}
chmod ${mode} ${file}
fi
}
cp_key() {
cp_cert
}
if [[ -n ${CERTFILE} ]]; then
cp_cert
fi
if [[ -n ${KEYFILE} ]]; then
cp_key
fi
|
