debian-silc-server/postinst

   1 #!/bin/sh
   2
   3 set -e
   4
   5 . /usr/share/debconf/confmodule
   6
   7 CONFIGDIR="/etc/silcd"
   8 CONFIGFILE="$CONFIGDIR/silcd.conf"
   9 IPCONFIGFILE="$CONFIGDIR/silcd-primary-ip.conf"
  10 ADMINCONFIGFILE="$CONFIGDIR/silcd-admin.conf"
  11 DEFAULT_CONFIGDIR="/usr/share/doc/silcd/examples"
  12 DEFAULT_CONFIGFILE="$DEFAULT_CONFIGDIR/silcd.conf.default.gz"
  13 DEFAULT_IPCONFIGFILE="$DEFAULT_CONFIGDIR/silcd-primary-ip.conf.default"
  14 DEFAULT_ADMINCONFIGFILE="$DEFAULT_CONFIGDIR/silcd-admin.conf.default"
  15
  16 read_config() {
  17     PARAMETER="$1"
  18     sed -n -e "s/^[^#]*$PARAMETER  *=  *\"\(\(\\\.\|[^\"]\)*\)\".*$/\1/p" \
  19         "$CONFIGFILE" | sed -e 's/\\//g'
  20 }
  21
  22 if [ -e "$CONFIGFILE" ]; then
  23     PUBLIC_KEY="$(read_config PublicKey)"
  24     PRIVATE_KEY="$(read_config PrivateKey)"
  25 else
  26     PUBLIC_KEY="/etc/silcd/silcd.pub"
  27     PRIVATE_KEY="/etc/silcd/silcd.prv"
  28 fi
  29
  30 retrieve_debconf_answers() {
  31     db_get silcd/server-name
  32     SERVER_NAME="$RET"
  33     db_get silcd/host-name
  34     HOST_NAME="$RET"
  35     db_get silcd/real-name
  36     REAL_NAME="$RET"
  37     db_get silcd/email
  38     EMAIL="$RET"
  39     db_get silcd/organization
  40     ORGANIZATION="$RET"
  41     db_get silcd/country
  42     COUNTRY="$RET"
  43     db_get silcd/admin-nick
  44     ADMIN_NICK="$RET"
  45     db_get silcd/admin-passphrase
  46     ADMIN_PASSPHRASE="$RET"
  47 }
  48
  49 rfc2253ize() {
  50     # We espace: symbols ,w+"\<> and spaces at end and begining
  51     echo "$1" | sed -e 's/[,;+"\\<>]/\\\0/g;s/ $/\\\0/g;s/^[ #]/\\\0/g'
  52 }
  53
  54 create_key_pair() {
  55     local tmpdir
  56
  57     retrieve_debconf_answers
  58
  59     if [ -z "$SERVER_NAME" -o -z "$HOST_NAME" ]; then
  60         # Don't create keypair
  61         return
  62     fi
  63
  64     IDENTIFIER="UN=$(rfc2253ize "SERVER_NAME"), HN=$(rfc2253ize "$HOST_NAME")"
  65     if [ -n "$REAL_NAME" ]; then
  66         IDENTIFIER="$IDENTIFIER, RN=$(rfc2253ize "$REAL_NAME")"
  67     fi
  68     if [ -n "$EMAIL" ]; then
  69         IDENTIFIER="$IDENTIFIER, E=$(rfc2253ize "$EMAIL")"
  70     fi
  71     if [ -n "$COUNTRY" ]; then
  72         IDENTIFIER="$IDENTIFIER, C=$(rfc2253ize "$COUNTRY")"
  73     fi
  74
  75     tmpdir=$(mktemp -d -t silcd.XXXXXX)
  76     chmod 700 "$tmpdir"
  77     silcd --create-key-pair="$tmpdir" --identifier="$IDENTIFIER"
  78     mkdir -p "$(dirname "$PUBLIC_KEY")" "$(dirname "$PRIVATE_KEY")"
  79     mv -f "$tmpdir/silcd.pub" "$PUBLIC_KEY"
  80     mv -f "$tmpdir/silcd.prv" "$PRIVATE_KEY"
  81     chmod 0600 "$PRIVATE_KEY"
  82     rmdir "$tmpdir"
  83 }
  84
  85 change_setting() {
  86     FILE="$1"
  87     shift
  88     KEY="$1"
  89     shift
  90     VALUE="$*"
  91
  92     VALUE="$(echo "$VALUE" | sed -e 's,/,\\/,g;s,",\\\\",g')"
  93     sed -i -e "s/\([^#]*$KEY  *=  *\"\)[^\"]*\(\"\)/\1$VALUE\2/" "$FILE"
  94 }
  95
  96 update_config_file() {
  97     retrieve_debconf_answers
  98     IP="$(getent hosts "$HOST_NAME" | awk '{print $1}')"
  99
 100     # silcd.conf
 101     TEMPFILE=$(tempfile)
 102     zcat "$DEFAULT_CONFIGFILE" > "$TEMPFILE"
 103
 104     change_setting "$TEMPFILE" ServerType "$SERVER_NAME"
 105     change_setting "$TEMPFILE" hostname "$HOST_NAME"
 106     change_setting "$TEMPFILE" Admin "$REAL_NAME"
 107     change_setting "$TEMPFILE" AdminEmail "$EMAIL"
 108     change_setting "$TEMPFILE" Location "$COUNTRY"
 109
 110     ucf --debconf-ok "$TEMPFILE" "$CONFIGFILE"
 111
 112     rm -f "$TEMPFILE"
 113
 114     # silcd-primary-ip.conf
 115     TEMPFILE=$(tempfile)
 116     cat "$DEFAULT_IPCONFIGFILE" > "$TEMPFILE"
 117
 118     change_setting "$TEMPFILE" ip "$IP"
 119
 120     ucf --debconf-ok "$TEMPFILE" "$IPCONFIGFILE"
 121
 122     rm -f "$TEMPFILE"
 123
 124     # silcd-admin.conf
 125     TEMPFILE="$(tempfile)"
 126     cat "$DEFAULT_ADMINCONFIGFILE" > "$TEMPFILE"
 127
 128     change_setting "$TEMPFILE" Nick "$ADMIN_NICK"
 129     change_setting "$TEMPFILE" Passphrase "$ADMIN_PASSPHRASE"
 130
 131     ucf --debconf-ok "$TEMPFILE" "$ADMINCONFIGFILE"
 132
 133     rm -f "$TEMPFILE"
 134 }
 135
 136 case "$1" in
 137     configure)
 138         if [ "$DEBCONF_RECONFIGURE" = "1" ] ||
 139            ! [ -e "$PUBLIC_KEY" -a -e "$PRIVATE_KEY" ]; then
 140             create_key_pair
 141         fi
 142         update_config_file
 143         ;;
 144
 145     reconfigure)
 146         create_key_pair
 147         update_config_file
 148         ;;
 149
 150     abort-upgrade|abort-remove|abort-deconfigure)
 151         ;;
 152
 153     *)
 154         echo "postinst called with unknown argument \`$1'" >&2
 155         exit 1
 156         ;;
 157 esac
 158
 159 # We are going to start a daemon, so we need to be debconf clean.
 160 db_stop
 161
 162 #DEBHELPER#
 163
 164 exit 0
 165
 166 #vim: et sw=4