mirror of
https://github.com/zulip/zulip.git
synced 2025-10-31 03:53:50 +00:00
111 lines
2.5 KiB
Bash
Executable File
111 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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usage() {
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echo "usage: $0 [--force] [--exists-ok] EXTERNAL_HOST" >&2
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exit 1
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}
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args="$(getopt -o '' --long help,force,exists-ok -- "$@")"
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eval "set -- $args"
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while true; do
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case "$1" in
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--help) usage ;;
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--force)
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FORCE=1
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shift
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;;
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--exists-ok)
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EXISTS_OK=1
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shift
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;;
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--)
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shift
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break
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;;
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*) usage ;;
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esac
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done
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EXTERNAL_HOST="$1"
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if [ -z "$EXTERNAL_HOST" ]; then
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usage
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fi
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if [ "$EUID" -ne 0 ]; then
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echo "error: this script must be run as root" >&2
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exit 1
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fi
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set -x
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is_redhat=false
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if [ -e /etc/redhat-release ]; then
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is_redhat=true
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SSLDIR=/etc/pki/tls
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else
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SSLDIR=/etc/ssl
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fi
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KEYFILE=$SSLDIR/private/zulip.key
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CERTFILE=$SSLDIR/certs/zulip.combined-chain.crt
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if [ -n "$EXISTS_OK" ] && [ -e "$KEYFILE" ] && [ -e "$CERTFILE" ]; then
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exit 0
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fi
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if [ -z "$FORCE" ] && { [ -e "$KEYFILE" ] || [ -e "$CERTFILE" ]; }; then
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echo "$0: certificate and/or key already exists; use --force to overwrite." >&2
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exit 1
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fi
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rm -f "$KEYFILE" "$CERTFILE"
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if [[ "$EXTERNAL_HOST" =~ ^(([0-9]+\.){3}[0-9]+)(:[0-9]+)?$ ]]; then
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subjectAltName="IP:${BASH_REMATCH[1]}" # IPv4 address
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elif [[ "$EXTERNAL_HOST" =~ ^\[([^][]*)\](:[0-9]+)?$ ]]; then
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subjectAltName="IP:${BASH_REMATCH[1]}" # IPv6 address
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elif [[ "$EXTERNAL_HOST" =~ ^([^:]+)(:[0-9]+)?$ ]]; then
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subjectAltName="DNS:${BASH_REMATCH[1]}"
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else
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echo "$0: invalid host $EXTERNAL_HOST" >&2
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exit 1
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fi
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config="$(mktemp)" || exit 1
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trap 'rm -f "$config"' EXIT
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cat >"$config" <<EOF
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# Based on /usr/share/ssl-cert/ssleay.cnf from Debian's \`ssl-cert\`
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# package, which is used for the system's snakeoil cert in /etc/ssl/.
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RANDFILE = /dev/urandom
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[ req ]
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default_bits = 2048
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distinguished_name = req_distinguished_name
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prompt = no
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policy = policy_anything
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req_extensions = v3_req
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x509_extensions = v3_req
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[ req_distinguished_name ]
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commonName = $EXTERNAL_HOST
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[ v3_req ]
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basicConstraints = CA:FALSE
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subjectAltName = $subjectAltName
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EOF
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if [ "$is_redhat" = true ]; then
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yum install -y openssl
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else
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apt-get install -y openssl
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fi
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# Based on /usr/sbin/make-ssl-cert from Debian's `ssl-cert` package.
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openssl req -new -x509 \
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-config "$config" -days 3650 -nodes -sha256 \
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-out "$CERTFILE" -keyout "$KEYFILE"
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chmod 644 "$CERTFILE"
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chmod 640 "$KEYFILE"
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