debian/update-exim4defaults

   1 #!/bin/sh
   2 # update-exim4defaults(8): manage entries in /etc/default/exim4
   3 # per script
   4
   5 if [ -n "$EX4DEBUG" ]; then
   6   echo "now debugging $0 $@"
   7   set -x
   8 fi
   9
  10 unset LC_ALL
  11 export LC_CTYPE=C
  12
  13 defaultfile=/etc/default/exim4
  14
  15 EX4DEF_INIT=false
  16 EX4DEF_FORCE=false
  17
  18
  19 if [ -r ${defaultfile} ]; then
  20         . ${defaultfile}
  21 fi
  22
  23
  24 # initialize variables
  25 EX4DEF_QUEUERUNNER="${QUEUERUNNER}"
  26 EX4DEF_QUEUEINTERVAL="${QUEUEINTERVAL}"
  27 EX4DEF_COMMONOPTIONS="${COMMONOPTIONS}"
  28 EX4DEF_QUEUERUNNEROPTIONS="${QUEUERUNNEROPTIONS}"
  29 EX4DEF_QFLAGS="${QFLAGS}"
  30 EX4DEF_SMTPLISTENEROPTIONS="${SMTPLISTENEROPTIONS}"
  31
  32 EX4DEF_FLAGOPTIONS=false
  33 EX4DEF_FLAGREMOVE=false
  34
  35 ex4def_usage ()
  36 {
  37         echo "update-exim4defaults: manage entries in /etc/default/exim4"
  38         echo "   usage: update-exim4defaults [[--queuerunner combined|separate|queueonly|ppp|no|nodaemon]"
  39         echo "          [--qflags flags ] [--queuetime time] [--commonoptions options]"
  40         echo "          [--queuerunneroptions options] [--smtplisteneroptions options]]"
  41         echo "          [--remove-common options] [--remove-queue options]"
  42         echo "          [--remove-smtp options]"
  43         echo "          [--force|-f] [--help|-h]"
  44         echo "          [--init]"
  45 }
  46
  47
  48 # used for initialzing and with --force.
  49 ex4def_write(){
  50         EX4DEF_TMP="$(tempfile -m 600 -p ex4)"
  51         cat << EOF > "${EX4DEF_TMP}"
  52 # /etc/default/exim4
  53 EX4DEF_VERSION='${EX4DEF_VERSION}'
  54
  55 # 'combined' -   one daemon running queue and listening on SMTP port
  56 # 'no'       -   no daemon running the queue
  57 # 'separate' -   two separate daemons
  58 # 'ppp'      -   only run queue with /etc/ppp/ip-up.d/exim4.
  59 # 'nodaemon' - no daemon is started at all.
  60 # 'queueonly' - only a queue running daemon is started, no SMTP listener.
  61 # setting this to 'no' will also disable queueruns from /etc/ppp/ip-up.d/exim4
  62 QUEUERUNNER='${EX4DEF_QUEUERUNNER}'
  63 # how often should we run the queue
  64 QUEUEINTERVAL='${EX4DEF_QUEUEINTERVAL}'
  65 # options common to quez-runner and listening daemon
  66 COMMONOPTIONS='${EX4DEF_COMMONOPTIONS}'
  67 # more options for the daemon/process running the queue (applies to the one
  68 # started in /etc/ppp/ip-up.d/exim4, too.
  69 QUEUERUNNEROPTIONS='${EX4DEF_QUEUERUNNEROPTIONS}'
  70 # special flags given to exim directly after the -q. See exim(8)
  71 QFLAGS='${EX4DEF_QFLAGS}'
  72 # Options for the SMTP listener daemon. By default, it is listening on
  73 # port 25 only. To listen on more ports, it is recommended to use
  74 # -oX 25:587:10025 -oP /run/exim4/exim.pid
  75 SMTPLISTENEROPTIONS='${EX4DEF_SMTPLISTENEROPTIONS}'
  76 EOF
  77         cat "${EX4DEF_TMP}" > "${defaultfile}"
  78         rm -f "${EX4DEF_TMP}"
  79 }
  80
  81 ## Parse commandline
  82 TEMP=$(getopt -n update-exim4defaults \
  83         -l qflags:,queuerunner:,queuetime:,commonoptions:,queuerunneroptions:,smtplisteneroptions:,remove-common:,remove-queue:,remove-smtp:,force,help,init -- \
  84         +fh "$@")
  85
  86 if test "$?" != 0; then
  87         echo "Terminating..." >&2
  88         exit 1
  89 fi
  90
  91 eval set -- ${TEMP}
  92 while test "$1" != "--"; do
  93         case $1 in
  94                 -f|--force)
  95                         EX4DEF_FORCE=true
  96                 ;;
  97                 -h|--help)
  98                         ex4def_usage
  99                         exit 0
 100                 ;;
 101                 --qflags)
 102                         shift
 103                         EX4DEF_QFLAGS="$1"
 104                         ;;
 105                 --queuerunner)
 106                         shift
 107                         EX4DEF_QUEUERUNNER="$1"
 108                         if ! expr match "${EX4DEF_QUEUERUNNER}" '\(ppp\|no\|combined\|nodaemon\|queueonly\|separate\)$' >/dev/null ; then
 109                                 echo "invalid argument ${EX4DEF_QUEUERUNNER} for --queuerunner" 1>&2
 110                                 exit 1
 111                         fi
 112                 ;;
 113                 --queuetime)
 114                         shift
 115                         EX4DEF_QUEUEINTERVAL="$1"
 116                 ;;
 117                 --commonoptions)
 118                         shift
 119                         EX4DEF_COMMONOPTIONS="$1"
 120                         EX4DEF_FLAGOPTIONS=true
 121                 ;;
 122                 --queuerunneroptions)
 123                         shift
 124                         EX4DEF_QUEUERUNNEROPTIONS="$1"
 125                         EX4DEF_FLAGOPTIONS=true
 126                 ;;
 127                 --smtplisteneroptions)
 128                         shift
 129                         EX4DEF_SMTPLISTENEROPTIONS="$1"
 130                         EX4DEF_FLAGOPTIONS=true
 131                 ;;
 132                 --remove-common)
 133                         shift
 134                         EX4DEF_REMOVECOMMON="$1"
 135                         EX4DEF_FLAGREMOVE=true
 136                 ;;
 137                 --remove-queue)
 138                         shift
 139                         EX4DEF_REMOVEQUEUE="$1"
 140                         EX4DEF_FLAGREMOVE=true
 141                 ;;
 142                 --remove-smtp)
 143                         shift
 144                         EX4DEF_REMOVESMTP="$1"
 145                         EX4DEF_FLAGREMOVE=true
 146                 ;;
 147                 --init)
 148                         EX4DEF_INIT=true
 149                 ;;
 150         esac
 151         shift
 152 done
 153 shift
 154
 155 # No non-option arguments allowed.
 156 if [ "$#" -ne 0 ]; then
 157         echo "No non option arguments allowed" >&2
 158         ex4def_usage >&2
 159         exit 1
 160 fi
 161
 162 if [ "${EX4DEF_FLAGREMOVE}" = "true" ] && [ "${EX4DEF_FLAGOPTIONS}" = "true" ] ; then
 163         echo "Cannot use --remove-something together with --somethingoptions" >&2
 164         ex4def_usage >&2
 165         exit 1
 166 fi
 167
 168 #if [ ! -r ${defaultfile} ]; then
 169 #       echo "Cannot read ${defaultfile}, terminating" >&2
 170 #       exit 1
 171 #fi
 172
 173 if "${EX4DEF_INIT}" = "true" ] ; then
 174         [ -e "${defaultfile}" ] && [ "${EX4DEF_FORCE}" != "true" ] && exit 0
 175         # Reset to default values
 176         EX4DEF_QUEUERUNNER='combined'
 177         EX4DEF_QUEUEINTERVAL='30m'
 178         EX4DEF_COMMONOPTIONS=''
 179         EX4DEF_QUEUERUNNEROPTIONS=''
 180         EX4DEF_QFLAGS=''
 181         EX4DEF_SMTPLISTENEROPTIONS=''
 182
 183         ex4def_write
 184         exit 0
 185 fi
 186
 187 #Try removing
 188 if [ "${EX4DEF_FLAGREMOVE}" = "true" ] ; then
 189         EX4DEF_REMOVEERROR="false"
 190         if [ ! -z "${EX4DEF_REMOVECOMMON}" ] ; then
 191                 EX4DEF_COMMONOPTIONS=$(echo "${COMMONOPTIONS}" | \
 192                         sed -e "sÄ${EX4DEF_REMOVECOMMON}ÄÄ" -e "s/  / /g" -e 's/^ //' -e 's/ $//')
 193                 [ "${EX4DEF_COMMONOPTIONS}" = "${COMMONOPTIONS}" ] && \
 194                         EX4DEF_REMOVEERROR="true"
 195         fi
 196         if [ ! -z "${EX4DEF_REMOVEQUEUE}" ] ; then
 197                 EX4DEF_QUEUERUNNEROPTIONS=$(echo "${QUEUERUNNEROPTIONS}" | \
 198                         sed -e "sÄ${EX4DEF_REMOVEQUEUE}ÄÄ" -e "s/  / /g" -e 's/^ //' -e 's/ $//')
 199                 [ "${EX4DEF_QUEUERUNNEROPTIONS}" = "${QUEUERUNNEROPTIONS}" ] && \
 200                         EX4DEF_REMOVEERROR="true"
 201         fi
 202         if [ ! -z "${EX4DEF_REMOVESMTP}" ] ; then
 203                 EX4DEF_SMTPLISTENEROPTIONS=$(echo "${SMTPLISTENEROPTIONS}" | \
 204                         sed -e "sÄ${EX4DEF_REMOVESMTP}ÄÄ" -e "s/  / /g" -e 's/^ //' -e 's/ $//')
 205                 [ "${EX4DEF_SMTPLISTENEROPTIONS}" = "${SMTPLISTENEROPTIONS}"] && \
 206                         EX4DEF_REMOVEERROR="true"
 207         fi
 208         if [ "${EX4DEF_REMOVEERROR}" = "true" ] ; then
 209                 echo "$0: removing failed, no changes" >&2
 210                 exit 64
 211         fi
 212
 213         EX4DEF_TMP="$(tempfile -m 600 -p ex4)"
 214         sed -e "sÄ^QFLAGS=.*ÄQFLAGS='${EX4DEF_QFLAGS}'Ä" \
 215                 -e "sÄ^QUEUERUNNER=.*ÄQUEUERUNNER='${EX4DEF_QUEUERUNNER}'Ä" \
 216                 -e "sÄ^QUEUEINTERVAL=.*ÄQUEUEINTERVAL='${EX4DEF_QUEUEINTERVAL}'Ä" \
 217                 -e "sÄ^COMMONOPTIONS=.*ÄCOMMONOPTIONS='${EX4DEF_COMMONOPTIONS}'Ä" \
 218                 -e "sÄ^QUEUERUNNEROPTIONS=.*ÄQUEUERUNNEROPTIONS='${EX4DEF_QUEUERUNNEROPTIONS}'Ä" \
 219                 -e "sÄ^SMTPLISTENEROPTIONS=.*ÄSMTPLISTENEROPTIONS='${EX4DEF_SMTPLISTENEROPTIONS}'Ä" \
 220                 < $defaultfile > "${EX4DEF_TMP}"
 221         mv "${EX4DEF_TMP}" $defaultfile
 222         rm -f "${EX4DEF_TMP}"
 223         exit 0
 224 fi
 225
 226 if [ "${EX4DEF_FORCE}" = "true" ] ; then
 227         ex4def_write
 228         exit 0
 229
 230 else
 231         EX4DEF_DOANYTHING=0
 232         EX4DEF_NOTALLOWED=0
 233         if [ "${QUEUERUNNER}" != "${EX4DEF_QUEUERUNNER}" ]; then
 234                 EX4DEF_DOANYTHING=$((${EX4DEF_DOANYTHING}+1))
 235                 # switching the QUEUERUNNER modus is always allowed
 236                 #[ -z "${QUEUERUNNER}" ] || EX4DEF_NOTALLOWED=$((${EX4DEF_NOTALLOWED}+1))
 237         fi
 238         if [ "${QUEUEINTERVAL}" != "${EX4DEF_QUEUEINTERVAL}" ] ; then
 239                 EX4DEF_DOANYTHING=$((${EX4DEF_DOANYTHING}+2))
 240                 [ -z "${QUEUEINTERVAL}" ] || \
 241                         EX4DEF_NOTALLOWED=$((${EX4DEF_NOTALLOWED}+2))
 242         fi
 243         if [ "${COMMONOPTIONS}" != "${EX4DEF_COMMONOPTIONS}" ] ; then
 244                 EX4DEF_DOANYTHING=$((${EX4DEF_DOANYTHING}+4))
 245                 [ -z "${COMMONOPTIONS}" ] || \
 246                         EX4DEF_NOTALLOWED=$((${EX4DEF_NOTALLOWED}+4))
 247         fi
 248         if [ "${QUEUERUNNEROPTIONS}" != "${EX4DEF_QUEUERUNNEROPTIONS}" ] ; then
 249                 EX4DEF_DOANYTHING=$((${EX4DEF_DOANYTHING}+8))
 250                 [ -z "${QUEUERUNNEROPTIONS}" ] || \
 251                         EX4DEF_NOTALLOWED=$((${EX4DEF_NOTALLOWED}+8))
 252         fi
 253         if [ "${SMTPLISTENEROPTIONS}" != "${EX4DEF_SMTPLISTENEROPTIONS}" ] ; then
 254                 EX4DEF_DOANYTHING=$((${EX4DEF_DOANYTHING}+16))
 255                 [ -z "${SMTPLISTENEROPTIONS}" ] || \
 256                         EX4DEF_NOTALLOWED=$((${EX4DEF_NOTALLOWED}+16))
 257         fi
 258         if [ "${QFLAGS}" != "${EX4DEF_QFLAGS}" ] ; then
 259                 EX4DEF_DOANYTHING=$((${EX4DEF_DOANYTHING}+32))
 260                 [ -z "${QFLAGS}" ] || \
 261                         EX4DEF_NOTALLOWED=$((${EX4DEF_NOTALLOWED}+32))
 262         fi
 263
 264         [ ${EX4DEF_DOANYTHING} -eq 0 ] && exit 0
 265         if [ ${EX4DEF_NOTALLOWED} -ne 0 ] ; then
 266                 echo "setting(s) conflict with current one, terminating" >&2
 267                 exit ${EX4DEF_NOTALLOWED}
 268         fi
 269
 270         EX4DEF_TMP="$(tempfile -m 600 -p ex4)"
 271         sed -e "sÄ^QFLAGS=.*ÄQFLAGS='${EX4DEF_QFLAGS}'Ä" \
 272                 -e "sÄ^QUEUERUNNER=.*ÄQUEUERUNNER='${EX4DEF_QUEUERUNNER}'Ä" \
 273                 -e "sÄ^QUEUEINTERVAL=.*ÄQUEUEINTERVAL='${EX4DEF_QUEUEINTERVAL}'Ä" \
 274                 -e "sÄ^COMMONOPTIONS=.*ÄCOMMONOPTIONS='${EX4DEF_COMMONOPTIONS}'Ä" \
 275                 -e "sÄ^QUEUERUNNEROPTIONS=.*ÄQUEUERUNNEROPTIONS='${EX4DEF_QUEUERUNNEROPTIONS}'Ä" \
 276                 -e "sÄ^SMTPLISTENEROPTIONS=.*ÄSMTPLISTENEROPTIONS='${EX4DEF_SMTPLISTENEROPTIONS}'Ä" \
 277                 < $defaultfile > "${EX4DEF_TMP}"
 278         mv "${EX4DEF_TMP}" $defaultfile
 279         rm -f "${EX4DEF_TMP}"
 280         exit 0
 281 fi
 282
 283
 284