Merge pull request #66 from jvalleroy/xmpp-hostname

Update XMPP and mDNS when changing hostname

actions/hostname-change

@@ -8,3 +8,5 @@ if [ -x /etc/init.d/hostname.sh ] ; then
 else
     service hostname start
 fi
+
+service avahi-daemon restart

actions/xmpp-hostname-change

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Action to set up new hostname for ejabberd and jwchat.
+
+hostname="$1"
+old_hostname=`debconf-show ejabberd | awk '/hostname/ { print $3 }'`
+
+# Based on http://www.process-one.net/docs/ejabberd/guide_en.html#htoc77
+
+# Setup some variables
+BACKUP=/tmp/ejabberd.dump
+
+echo "ejabberd ejabberd/hostname string $hostname" | debconf-set-selections
+echo "jwchat jwchat/ApacheServerName string $hostname" | debconf-set-selections
+DEBIAN_FRONTEND=noninteractive dpkg-reconfigure jwchat
+
+# Debconf can't handle our manual changes to ejabberd's config yet.
+sed -i "s/$old_hostname/$hostname/g" /etc/ejabberd/ejabberd.cfg
+sed -i "s/$old_hostname/$hostname/g" $BACKUP
+
+service ejabberd restart
+
+# Load backup database
+sleep 10
+ejabberdctl load $BACKUP
+rm $BACKUP

actions/xmpp-pre-hostname-change

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+#
+# This file is part of Plinth.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Action to backup ejabberd database before changing hostname.
+
+BACKUP=/tmp/ejabberd.dump
+ejabberdctl dump $BACKUP
+ejabberdctl stop
+
+# Make sure there aren't files in the Mnesia spool dir
+mkdir -p /var/lib/ejabberd/oldfiles
+mv /var/lib/ejabberd/*.* /var/lib/ejabberd/oldfiles/

modules/installed/system/config.py

@@ -55,7 +55,9 @@ def set_hostname(hostname):
 
     cfg.log.info("Changing hostname to '%s'" % hostname)
     try:
+        superuser_run("xmpp-pre-hostname-change")
         superuser_run("hostname-change", hostname)
+        superuser_run("xmpp-hostname-change", hostname, async=True)
         # don't persist/cache change unless it was saved successfuly
         sys_store = filedict_con(cfg.store_file, 'sys')
         sys_store['hostname'] = hostname