#!/bin/bash
# postinst script for jicofo

set -e

case "$1" in
    configure)

        CONFIG="/etc/jitsi/jicofo/config"

        # we don't want to regenerate config on upgrade
        OLDCONFIG="false"
        if [ -f $CONFIG ]; then
            . $CONFIG
            if [ -n "$JICOFO_HOSTNAME" ] \
                && [ -n "$JICOFO_AUTH_DOMAIN" ] && [ -n "$JICOFO_AUTH_USER" ] && [ -n "$JICOFO_AUTH_PASSWORD" ]; then
                OLDCONFIG="true"
            fi
        fi

        # debconf hostname question
        . /usr/share/debconf/confmodule

        # try to get host from jitsi-videobridge
        db_get jitsi-videobridge/jvb-hostname
        if [ -z "$RET" ] ; then
            # server hostname
            db_set jitsi-videobridge/jvb-hostname "localhost"
            db_input critical jitsi-videobridge/jvb-hostname || true
            db_go
        fi
        JVB_HOSTNAME=$(echo "$RET" | xargs echo -n)

        # generate config on new install
        if [ "$OLDCONFIG" = "false" ] || [ "$JVB_HOSTNAME" != "$JICOFO_HOSTNAME" ]; then

            JICOFO_HOSTNAME="$JVB_HOSTNAME"

            JICOFO_AUTH_DOMAIN="auth.$JICOFO_HOSTNAME"
            JICOFO_AUTH_USER="focus"
            db_get jicofo/jicofo-authpassword
            if [ -z "$RET" ] ; then
                RET=`cat /dev/urandom | tr -dc 'a-zA-Z0-9' | head -c 16`
            fi
            JICOFO_AUTH_PASSWORD="$RET"

            # This re-creates $CONFIG. If previous values existed, they will be set in jicofo.conf below.
            echo '# adds java system props that are passed to jicofo (default are for home and logging config file)' > $CONFIG
            echo "JAVA_SYS_PROPS=\"-Dnet.java.sip.communicator.SC_HOME_DIR_LOCATION=/etc/jitsi\
 -Dnet.java.sip.communicator.SC_HOME_DIR_NAME=jicofo\
 -Dnet.java.sip.communicator.SC_LOG_DIR_LOCATION=/var/log/jitsi\
 -Djava.util.logging.config.file=/etc/jitsi/jicofo/logging.properties\"" >> $CONFIG

        fi

        # Store values, so we can use it if we are configuring other packages on the same machine
        # we are currently doing this on every upgrade in order to be able to successfully upgrade
        # from old packages, otherwise we can do it only on new configuration or reconfiguration
        db_set jicofo/jicofo-authpassword "$JICOFO_AUTH_PASSWORD"

        # and we're done with debconf
        db_stop

        OLD_JITSI_CONFIG="/etc/jitsi/jicofo/sip-communicator.properties"
        HOCON_CONFIG="/etc/jitsi/jicofo/jicofo.conf"

        if [ ! -f $HOCON_CONFIG ]; then
            echo "Generating an empty jicofo.conf file"
            echo "# Jicofo HOCON configuration. See reference.conf in /usr/share/jicofo/jicofo.jar for
#available options, syntax, and default values.
jicofo {
}" >> $HOCON_CONFIG
        fi

        # Make sure the client-proxy is set correctly.
        hocon -f $HOCON_CONFIG set jicofo.xmpp.client.client-proxy "\"focus.$JVB_HOSTNAME\""

        # Set the client XMPP config in jicofo.conf. The values were either read from an existing
        # /etc/jitsi/jicofo/config or generated above.
        if ! hocon -f $HOCON_CONFIG get "jicofo.xmpp.client.xmpp-domain" > /dev/null 2>&1 ;then
            hocon -f $HOCON_CONFIG set "jicofo.xmpp.client.xmpp-domain" "\"$JICOFO_HOSTNAME\""
        fi
        if ! hocon -f $HOCON_CONFIG get "jicofo.xmpp.client.domain" > /dev/null 2>&1 ;then
            hocon -f $HOCON_CONFIG set "jicofo.xmpp.client.domain" "\"$JICOFO_AUTH_DOMAIN\""
        fi
        if ! hocon -f $HOCON_CONFIG get "jicofo.xmpp.client.username" > /dev/null 2>&1 ;then
            hocon -f $HOCON_CONFIG set "jicofo.xmpp.client.username" "\"$JICOFO_AUTH_USER\""
        fi
        if ! hocon -f $HOCON_CONFIG get "jicofo.xmpp.client.password" > /dev/null 2>&1 ;then
            hocon -f $HOCON_CONFIG set "jicofo.xmpp.client.password" "\"$JICOFO_AUTH_PASSWORD\""
        fi

        # Add the JvbBrewery config if missing
        if ! grep -sq "org.jitsi.jicofo.BRIDGE_MUC" "$OLD_JITSI_CONFIG" ;then
            if ! hocon -f $HOCON_CONFIG get "jicofo.bridge.brewery-jid" > /dev/null 2>&1 ; then
                hocon -f $HOCON_CONFIG set "jicofo.bridge.brewery-jid" \"JvbBrewery@internal.auth.${JVB_HOSTNAME}\"
            fi
        fi

        # Mark the jibri domain as trusted unless the trusted-domains have been set.
        if  [[ $(hocon -j -f $HOCON_CONFIG get "jicofo.xmpp.trusted-domains" 2> /dev/null | jq -r "type") != "array" ]] ;then
            hocon -f $HOCON_CONFIG set "jicofo.xmpp.trusted-domains" "[ \"recorder.$JVB_HOSTNAME\" ]"
        fi

        # we don't want to start the daemon as root
        if ! getent group jitsi > /dev/null ; then
            groupadd jitsi
        fi
        if ! getent passwd jicofo > /dev/null ; then
            useradd -r -g jitsi --shell /bin/bash --create-home -d /usr/share/jicofo jicofo
        fi
        if ! groups jicofo | grep '\bjitsi\b' > /dev/null ; then
            usermod -g jitsi jicofo
        fi

        mkdir -p /usr/share/jicofo

        # we claim the home folder of jicofo in case it is owned by someone else
        OWNER=$(stat -c '%U' /usr/share/jicofo)
        GROUP=$(stat -c '%G' /usr/share/jicofo)
        if ! dpkg-statoverride --list /usr/share/jicofo/* >/dev/null && [ "$OWNER:$GROUP" != "jicofo:jitsi" ]; then
            chown -R jicofo:jitsi /usr/share/jicofo
            OWNER=jicofo
            GROUP=jitsi
        fi

        CONFIG_DIR=$(dirname $CONFIG)
        if ! dpkg-statoverride --list "$CONFIG_DIR" >/dev/null; then
            chown -R jicofo:jitsi "$CONFIG_DIR"
            chmod 750 "$CONFIG_DIR"
        fi

        # die logz
        if [ ! -d /var/log/jitsi ]; then
            mkdir -p /var/log/jitsi
            chown $OWNER:$GROUP /var/log/jitsi
            chmod 770 /var/log/jitsi
        fi
        ls /var/log/jitsi/jicofo* 1>/dev/null 2>&1 && chown -f -R $OWNER:$GROUP /var/log/jitsi/jicofo*
        ls /var/log/jitsi/jicofo* 1>/dev/null 2>&1 && chmod -f -R 640 /var/log/jitsi/jicofo*

        # ensure focus is not running - it will be started at the end
        if invoke-rc.d jicofo status >/dev/null 2>&1 ; then
            invoke-rc.d jicofo stop || true
        fi

        # clean up old jicofo group
        if getent group jicofo > /dev/null; then
            groupdel jicofo
        fi
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0