1 files changed, 146 insertions, 0 deletions
diff --git a/debian/open-infrastructure-ddns-client.postinst b/debian/open-infrastructure-ddns-client.postinst
new file mode 100755
index 0000000..afbda6c
--- /dev/null
+++ b/debian/open-infrastructure-ddns-client.postinst
@@ -0,0 +1,146 @@
+#!/bin/sh
+
+set -e
+
+. /usr/share/debconf/confmodule
+
+CONFFILE="/etc/network-tools/config/ddns-client.conf"
+
+case "${1}" in
+	configure)
+		db_get open-infrastructure-ddns-client/nameservers
+		NAMESERVERS="${RET}" # string
+
+		db_get open-infrastructure-ddns-client/zone
+		ZONE="${RET}" # string
+
+		db_get open-infrastructure-ddns-client/record
+		RECORD="${RET}" # string
+
+		db_get open-infrastructure-ddns-client/ttl
+		TTL="${RET:-60}" # string (w/o empty)
+
+		db_get open-infrastructure-ddns-client/tsig
+		TSIG="${RET}" # string (w/ empty)
+
+		db_stop
+
+		if [ ! -e "${CONFFILE}" ]
+		then
+			mkdir -p /etc/network-tools/config
+
+cat > "${CONFFILE}" << EOF
+# /etc/network-tools/config/ddns-client.conf
+
+NAMESERVERS="${NAMESERVERS}"
+ZONE="${ZONE}"
+RECORD="${RECORD}"
+TTL="${TTL}"
+TSIG_KEYFILE=""
+EOF
+
+		fi
+
+		cp -a -f "${CONFFILE}" "${CONFFILE}.tmp"
+
+		# If the admin deleted or commented some variables but then set
+		# them via debconf, (re-)add them to the config file.
+
+		test -z "${NAMESERVERS}" || \
+		grep -Eq '^ *NAMESERVERS=' "${CONFFILE}" || \
+		echo "NAMESERVERS=" >> "${CONFFILE}"
+
+		test -z "${ZONE}" || \
+		grep -Eq '^ *ZONE=' "${CONFFILE}" || \
+		echo "ZONE=" >> "${CONFFILE}"
+
+		test -z "${RECORD}" || \
+		grep -Eq '^ *RECORD=' "${CONFFILE}" || \
+		echo "RECORD=" >> "${CONFFILE}"
+
+		test -z "${TTL}" || \
+		grep -Eq '^ *TTL=' "${CONFFILE}" || \
+		echo "TTL=" >> "${CONFFILE}"
+
+		sed -e "s|^ *NAMESERVERS=.*|NAMESERVERS=\"${NAMESERVERS}\"|" \
+		    -e "s|^ *ZONE=.*|ZONE=\"${ZONE}\"|" \
+		    -e "s|^ *RECORD=.*|RECORD=\"${RECORD}\"|" \
+		    -e "s|^ *TTL=.*|TTL=\"${TTL}\"|" \
+		< "${CONFFILE}" > "${CONFFILE}.tmp"
+
+		mv -f "${CONFFILE}.tmp" "${CONFFILE}"
+
+		if [ -n "${TSIG}" ]
+		then
+			case "${TSIG}" in
+				http*)
+					# tsig is a URL
+					if command -v wget "${TSIG}" -O /dev/null > /dev/null 2>&1
+					then
+						rm -f /etc/network-tools/tsig.key
+
+						wget "${TSIG}" -O /etc/network-tools/tsig.key
+						chmod 0600 /etc/network-tools/tsig.key
+
+						TSIG_FILE="/etc/network-tools/tsig.key"
+					elif command -v curl "${TSIG}" -o /dev/null > /dev/null 2>&1
+					then
+						rm -f /etc/network-tools/tsig.key
+
+						curl "${TSIG}" -o /etc/network-tools/tsig.key
+						chmod 0600 /etc/network-tools/tsig.key
+
+						TSIG_FILE="/etc/network-tools/tsig.key"
+					fi
+					;;
+
+				*:*)
+					# tsig is a string
+					echo "${TSIG}" > /etc/network-tools/tsig.key
+					chmod 0600 /etc/network-tools/tsig.key
+
+					TSIG_FILE="/etc/network-tools/tsig.key"
+					;;
+
+				*/*)
+					# tsig is a path
+					TSIG_FILE="${TSIG}"
+					;;
+
+				*)
+					echo "'${TSIG}' is neither a valid tsig, nor a path or URL to an existing file - ignoring"
+					;;
+			esac
+		fi
+
+		if [ -n "${TSIG_FILE}" ]
+		then
+			cp -a -f "${CONFFILE}" "${CONFFILE}.tmp"
+
+			# If the admin deleted or commented some variables but then set
+			# them via debconf, (re-)add them to the config file.
+
+			test -z "${TSIG_FILE}" || \
+			grep -Eq '^ *TSIG_KEYFILE=' "${CONFFILE}" || \
+			echo "TSIG_KEYFILE=" >> "${CONFFILE}"
+
+			sed -e "s|^ *TSIG_KEYFILE=.*|TSIG_KEYFILE=\"${TSIG_FILE}\"|" \
+			< "${CONFFILE}" > "${CONFFILE}.tmp"
+
+			mv -f "${CONFFILE}.tmp" "${CONFFILE}"
+		fi
+		;;
+
+	abort-upgrade|abort-remove|abort-deconfigure)
+
+		;;
+
+	*)
+		echo "postinst called with unknown argument \`${1}'" >&2
+		exit 1
+		;;
+esac
+
+#DEBHELPER#
+
+exit 0