external/ibm-public/postfix/dist/conf/postmulti-script

   1 #! /bin/sh
   2 #       $NetBSD$
   3 #
   4
   5 umask 022
   6
   7 # postmulti(1) contract:
   8 #
   9 # Arguments:
  10 #  postmulti-script -e <edit_command>
  11 #
  12 # Environment:
  13 #
  14 # All actions:
  15 #
  16 #  MAIL_CONFIG                  - config_directory of primary instance
  17 #  command_directory            - From primary instance
  18 #  daemon_directory             - From primary instance
  19 #  config_directroy             - config_directory of target instance
  20 #  queue_directory              - queue_directory of target instance
  21 #  data_directory               - data_directory of target instance
  22 #
  23 # Create, destroy, import and deport:
  24 #
  25 #  multi_instance_directories   - New value for primary instance
  26 #
  27 # Create, import and assign (unset == nochange, "-" == clear):
  28 #
  29 #  multi_instance_group         - New value for target instance
  30 #  multi_instance_name          - New value for target instance
  31
  32 : ${MAIL_CONFIG:?"do not invoke this command directly"}
  33 : ${command_directory:?"do not invoke this command directly"}
  34 : ${daemon_directory:?"do not invoke this command directly"}
  35
  36 USAGE="$0 -e create|destroy|import|deport|enable|disable|assign|init"
  37 usage() { echo "$0: Error: Usage: $USAGE" >&2; exit 1; }
  38
  39 TAG="$MAIL_LOGTAG/postmulti-script"
  40 fatal() { postlog -p fatal -t "$TAG" "$1"; exit 1; }
  41
  42 # args: add|del $dir
  43 #
  44 update_cfdirs() {
  45     op=$1
  46     dir=$2
  47
  48     alt=`postconf -h alternate_config_directories` || return 1
  49
  50     shift $#    # Needed on SunOS where bare "set --" is NOP!
  51     IFS="$IFS,"; set -- $alt; IFS="$BACKUP_IFS"
  52     keep=
  53     found=
  54     # Portability: SunOS "sh" needs 'in "$@"' for one-line for-loop.
  55     for d in "$@"; do [ "$d" = "$dir" ] && found=1 || keep="$keep $d"; done
  56
  57     set -- "multi_instance_directories = $multi_instance_directories"
  58
  59     case $op in
  60     add) test -n "$found" ||
  61          set -- "$@" "alternate_config_directories =$keep $dir";;
  62     del) test -n "$found" &&
  63          set -- "$@" "alternate_config_directories =$keep";;
  64       *) return 1;;             # XXX: Internal error
  65     esac
  66     postconf -e "$@" || return 1
  67 }
  68
  69 assign_names() {
  70     # Set the instance name and group
  71     #
  72     test -n "$multi_instance_name" && {
  73         test "$multi_instance_name" = "-" && multi_instance_name=
  74         set -- "$@" "multi_instance_name = $multi_instance_name"
  75     }
  76     test -n "$multi_instance_group" && {
  77         test "$multi_instance_group" = "-" && multi_instance_group=
  78         set -- "$@" "multi_instance_group = $multi_instance_group"
  79     }
  80     test $# -eq 0 || postconf -c "$config_directory" -e "$@" || return 1
  81 }
  82
  83 # Process command-line options and parameter settings. Work around
  84 # brain damaged shells. "IFS=value command" should not make the
  85 # IFS=value setting permanent. But some broken standard allows it.
  86
  87 BACKUP_IFS="$IFS"
  88 action=
  89
  90 while getopts ":e:" opt
  91 do
  92     case $opt in
  93     e) action="$OPTARG";;
  94     *) usage;;
  95     esac
  96 done
  97 shift `expr $OPTIND - 1`
  98
  99 # Check for valid action and required instance name
 100 case "$action" in
 101  create|import|destroy|deport|enable|disable|assign|init) ;;
 102                                                        *) usage;;
 103 esac
 104 test $# -eq 0 || usage
 105
 106 case $action in
 107 init)
 108     postconf -e \
 109         'multi_instance_wrapper = ${command_directory}/postmulti -p --' \
 110         'multi_instance_enable = yes'
 111     exit $? ;;
 112 esac
 113
 114 : ${config_directory:?"Invalid empty target instance config_directory"}
 115
 116 case $action in
 117 create|import)
 118
 119     # Atomically install stock main.cf/master.cf files. We install the
 120     # master.cf file last. Once it is present the instance is complete.
 121     #
 122     test -f $config_directory/main.cf -a \
 123          -f $config_directory/master.cf || {
 124
 125         test "$action" = "create" || {
 126             test -f $config_directory/main.cf ||
 127                 fatal "'$config_directory' lacks a main.cf file"
 128             test -f $config_directory/master.cf ||
 129                 fatal "'$config_directory' lacks a master.cf file"
 130         }
 131
 132         # Create instance-specific directories
 133         #
 134         test -d $config_directory ||
 135             { (umask 022; mkdir -p $config_directory) || exit 1; }
 136         test -d $queue_directory ||
 137             { (umask 022; mkdir -p $queue_directory) || exit 1; }
 138         test -d $data_directory ||
 139             { (umask 077; mkdir -p $data_directory) || exit 1; }
 140
 141         tmpdir=$config_directory/.tmp
 142         (umask 077; mkdir -p $tmpdir) || exit 1
 143         cp -p $daemon_directory/main.cf $tmpdir/main.cf || exit 1
 144
 145         # Shared install parameters are cloned from user-specified values in
 146         # the default instance, but only if explicitly set there. Otherwise,
 147         # they are commented out in the new main.cf file.
 148         #
 149         SHARED_PARAMETERS="
 150             command_directory
 151             daemon_directory
 152             mail_owner
 153             setgid_group
 154             sendmail_path
 155             mailq_path
 156             newaliases_path
 157             html_directory
 158             manpage_directory
 159             sample_directory
 160             readme_directory
 161         "
 162
 163         shift $#        # Needed on SunOS where bare "set --" is NOP!
 164         comment_out=
 165         for p in $SHARED_PARAMETERS; do
 166             val=`postconf -nh $p` || exit 1
 167             test -n "$val" && { set -- "$@" "$p = $val"; continue; }
 168             comment_out="$comment_out $p"
 169         done
 170
 171         # First comment-out any parameters that take default values
 172         test -n "$comment_out" && {
 173             postconf -c $tmpdir -# $comment_out || exit 1
 174         }
 175
 176         # Now add instance-specific and non-default values.
 177         # By default, disable inet services and local submission
 178         # in new instances
 179         #
 180         postconf -c $tmpdir -e \
 181             "queue_directory = $queue_directory" \
 182             "data_directory = $data_directory" \
 183             "authorized_submit_users =" \
 184             "master_service_disable = inet" \
 185             "$@" || exit 1
 186
 187
 188         cp -p $daemon_directory/master.cf $tmpdir/master.cf || exit 1
 189         mv $tmpdir/main.cf $config_directory/main.cf || exit 1
 190         mv $tmpdir/master.cf $config_directory/master.cf || exit 1
 191         rmdir $tmpdir 2>/dev/null
 192     }
 193
 194     # Set instance name and group
 195     #
 196     assign_names || exit 1
 197
 198     # Update multi_instance_directories
 199     # and drop from alternate_config_directories
 200     #
 201     # XXX: Must happen before set-permissions below, otherwise instance
 202     # is treated as a non-slave instance by post-install via postfix(1).
 203     #
 204     update_cfdirs del $config_directory || exit 1
 205
 206     # Update permissions of private files. Verifies existence of
 207     # queue_directory and data_directory, ...
 208     #
 209     # XXX: Must happen after instance list updates above, otherwise instance
 210     # is treated as a non-slave instance by post-install via postfix(1).
 211     #
 212     postfix -c $config_directory set-permissions || exit 1
 213     ;;
 214
 215 deport)
 216     # Deporting an already deleted instance?
 217     #
 218     [ -f "$config_directory/main.cf" ] || {
 219         update_cfdirs del $config_directory
 220         exit $?
 221     }
 222
 223     postfix -c "$config_directory" status >/dev/null 2>&1 &&
 224         fatal "Instance '$config_directory' is not stopped"
 225
 226     # Update multi_instance_directories
 227     # and add to alternate_config_directories
 228     #
 229     update_cfdirs add $config_directory || exit 1
 230     ;;
 231
 232 destroy)
 233
 234     # "postmulti -e destroy" will remove an entire instance only when
 235     # invoked immediately after "postmulti -e create" (i.e. before
 236     # other files are added to the instance). We delete only known
 237     # safe names without "/".
 238     #
 239     QUEUE_SUBDIRS="active bounce corrupt defer deferred flush hold \
 240     incoming maildrop pid private public saved trace"
 241     #DEBUG=echo
 242     WARN="postlog -p warn -t $TAG"
 243
 244     # Locate the target instance
 245     #
 246     [ -f "$config_directory/main.cf" ] ||
 247         fatal "$config_directory/main.cf file not found"
 248
 249     postfix -c "$config_directory" status >/dev/null 2>&1 &&
 250         fatal "Instance '$config_directory' is not stopped"
 251
 252     # Update multi_instance directories
 253     # and also (just in case) drop from alternate_config_directories
 254     #
 255     $DEBUG update_cfdirs del "$config_directory" || exit 1
 256
 257     # XXX: Internal "postfix /some/cmd" interface.
 258     #
 259     postfix -c "$config_directory" /bin/sh -c "
 260     for q in $QUEUE_SUBDIRS
 261     do
 262         $DEBUG rmdir -- \$q ||
 263             $WARN \`pwd\`/\$q: please verify contents and remove by hand
 264     done
 265     "
 266
 267     postfix -c "$config_directory" /bin/sh -c "
 268     for dir in \$data_directory \$queue_directory
 269     do
 270         $DEBUG rmdir -- \$dir ||
 271             $WARN \$dir: please verify contents and remove by hand
 272     done
 273     "
 274
 275     # In the configuration directory remove just the main.cf and master.cf
 276     # files.
 277     $DEBUG rm -f -- "$config_directory/master.cf" "$config_directory/main.cf" 2>/dev/null
 278     $DEBUG rmdir -- "$config_directory" ||
 279         $WARN $config_directory: please verify contents and remove by hand
 280     ;;
 281
 282 enable)
 283     postconf -c "$config_directory" -e \
 284         "multi_instance_enable = yes" || exit 1;;
 285 disable)
 286     postconf -c "$config_directory" -e \
 287         "multi_instance_enable = no" || exit 1;;
 288 assign)
 289     assign_names || exit 1;;
 290 esac
 291
 292 exit 0