243 lines
7.8 KiB
Bash
243 lines
7.8 KiB
Bash
#!/bin/sh
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# This script converts all db files of a cyrus installation from their
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# existing format to the format required by the current installation.
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# The format of current db files is determined using the 'file' command
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# with a magic file added for skiplist db, the new format is read from
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# a config file usually in /usr/share/cyrus-imapd/rpm/db.cfg, which is
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# created while compiling. After converting, the db.cfg file is
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# copied to a cache file usually at /var/lib/imap/rpm/db.cfg.cache to
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# allow bypassing this converting script if both files are identical.
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# While this is a bit less secure, it may be useful on big server where
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# db converting is done automatically.
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#
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# This script can safely be run as root, it will reexec itself as user
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# cyrus if needed.
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#
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# author: Simon Matter, Invoca Systems <simon.matter@invoca.ch>
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# changelog
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# v1.0.1, Oct 22 2002 Simon Matter <simon.matter@invoca.ch>
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# - added two-step conversion method
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#
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# v1.0.2, Jan 10 2003 Simon Matter <simon.matter@invoca.ch>
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# - fixed a bug where cvt_cyrusdb was called to convert empty or
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# nonexistent files
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#
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# v1.0.3, Mar 14 2003 Simon Matter <simon.matter@invoca.ch>
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# - fixed a problem with new versions of the file command
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#
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# v1.0.4
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# - added GPL license
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#
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# v1.0.5, May 02 2003 Simon Matter <simon.matter@invoca.ch>
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# - modified exec path
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#
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# v1.0.6, Jul 18 2003 Simon Matter <simon.matter@invoca.ch>
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# - changed db3 to berkeley
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# - added new db backends for 2.2
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#
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# v1.0.7, Jan 23 2004 Simon Matter <simon.matter@invoca.ch>
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# - included some modifications from Luca Olivetti <luca@olivetti.cjb.net>
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# - added masssievec functionality
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#
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# v1.0.8, Jan 28 2004 Simon Matter <simon.matter@invoca.ch>
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# - convert sieve scripts to UTF-8 before calling masssievec
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#
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# v1.0.9, Jan 29 2004 Simon Matter <simon.matter@invoca.ch>
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# - convert sieve scripts to UTF-8 only if sievec failed before
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#
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# v1.0.10, Feb 24 2004 Simon Matter <simon.matter@invoca.ch>
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# - change su within init script to get input from
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# /dev/null, this prevents hang when running in SELinux
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#
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# v1.0.11, Mar 02 2004 Simon Matter <simon.matter@invoca.ch>
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# - fixed SELinux fix
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#
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# v1.0.12, Dec 16 2004 Simon Matter <simon.matter@invoca.ch>
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# - use runuser instead of su if available
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if [ -n "$(/sbin/pidof cyrus-master)" ]; then
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echo "ERROR: cyrus-master is running, unable to convert mailboxes!"
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exit 1
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fi
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if [ ! -f /etc/imapd.conf ]; then
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echo "ERROR: configuration file not found."
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exit 1
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fi
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# fallback to su if runuser not available
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if [ -x /sbin/runuser ]; then
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RUNUSER=runuser
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else
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RUNUSER=su
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fi
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# force cyrus user for security reasons
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if [ ! $(whoami) = "cyrus" ]; then
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exec $RUNUSER - cyrus -c "cd $PWD < /dev/null ; $0"
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fi
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# files get mode 0600
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umask 166
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# get_config [config default]
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# extracts config option from config file
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get_config() {
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if config=$(grep "^$1" /etc/imapd.conf); then
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echo $config | cut -d: -f2 | sed -e 's/^ *//' -e 's/-nosync//' -e 's/ *$//'
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else
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echo $2
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fi
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}
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# where to find files and directories
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system_magic=$(file --version | awk '/magic file/ {print $4}')
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cyrus_magic=/usr/share/cyrus-imapd/rpm/magic
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cvt_cyrusdb=/usr/lib/cyrus-imapd/cvt_cyrusdb
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sievec=/usr/lib/cyrus-imapd/sievec
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imap_prefix=$(get_config configdirectory /var/lib/imap)
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sieve_dir=$(get_config sievedir /var/lib/imap/sieve)
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db_cfg=/usr/share/cyrus-imapd/rpm/db.cfg
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db_current=${imap_prefix}/rpm/db.cfg.current
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db_cache=${imap_prefix}/rpm/db.cfg.cache
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# source default db backend config
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. $db_cfg
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# get configured db backend config
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CONFIG_DB_DUPLICATE=$(get_config duplicate_db $CONFIG_DB_DUPLICATE)
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CONFIG_DB_MBOX=$(get_config mboxlist_db $CONFIG_DB_MBOX)
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CONFIG_DB_SEEN=$(get_config seenstate_db $CONFIG_DB_SEEN)
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CONFIG_DB_SUBS=$(get_config subscription_db $CONFIG_DB_SUBS)
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CONFIG_DB_TLS=$(get_config tlscache_db $CONFIG_DB_TLS)
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CONFIG_DB_ANNOTATION=$(get_config annotation_db $CONFIG_DB_ANNOTATION)
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# remember current db backend config
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{
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echo "CONFIG_DB_DUPLICATE=$CONFIG_DB_DUPLICATE"
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echo "CONFIG_DB_MBOX=$CONFIG_DB_MBOX"
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echo "CONFIG_DB_SEEN=$CONFIG_DB_SEEN"
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echo "CONFIG_DB_SUBS=$CONFIG_DB_SUBS"
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echo "CONFIG_DB_TLS=$CONFIG_DB_TLS"
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echo "CONFIG_DB_ANNOTATION=$CONFIG_DB_ANNOTATION"
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echo "CONFIG_DB_SIEVE=$CONFIG_DB_SIEVE"
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} > $db_current
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# file_type [file]
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file_type() {
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this_type=$(file -b -m "$system_magic:$cyrus_magic" "$1" 2> /dev/null)
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if echo "$this_type" | grep -qi skip > /dev/null 2>&1; then
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echo skiplist
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elif echo "$this_type" | grep -qi text > /dev/null 2>&1; then
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echo flat
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else
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echo berkeley
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fi
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}
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# cvt_file [file] [db]
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cvt_file() {
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target="$1"
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new_db="$2"
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if [ -s "$target" ]; then
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old_db=$(file_type "$target")
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if [ ! "$old_db" = "$new_db" ]; then
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# The two-step conversion is paranoia against the filenames being encoded
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# inside the database or logfiles (berkeley does this, for example).
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rm -f "${target}.flat"
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if [ "$old_db" = "flat" ]; then
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cp -a "$target" "${target}.flat"
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else
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$cvt_cyrusdb "$target" "$old_db" "${target}.flat" flat
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fi
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RETVAL=$?
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ERRVAL=$[ $ERRVAL + $RETVAL ]
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if [ $RETVAL -eq 0 ]; then
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rm -f "$target"
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if [ -s "${target}.flat" ]; then
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if [ "$new_db" = "flat" ]; then
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cp -a "${target}.flat" "$target"
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else
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$cvt_cyrusdb "${target}.flat" flat "$target" "$new_db"
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fi
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fi
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RETVAL=$?
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ERRVAL=$[ $ERRVAL + $RETVAL ]
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if [ $RETVAL -eq 0 ]; then
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rm -f "${target}.flat"
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else
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echo "ERROR: unable to convert ${target}.flat from flat to $new_db"
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fi
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else
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echo "ERROR: unable to convert $target from $old_db to flat"
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fi
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fi
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fi
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}
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# cvt_to_utf8 [file]
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cvt_to_utf8() {
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target="$1"
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if [ -s "$target" ]; then
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if ! $sievec "$target" "${target}.sievec"; then
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iconv --from-code=ISO-8859-1 --to-code=UTF-8 --output="${target}.UTF-8" "$target"
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if [ -s "${target}.UTF-8" ]; then
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# preserve timestamp
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touch --reference="$target" "${target}.UTF-8"
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mv -f "${target}.UTF-8" "$target"
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else
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ERRVAL=$[ $ERRVAL + 1 ]
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fi
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fi
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rm -f "${target}.sievec"
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fi
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}
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ERRVAL=0
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# do we need to convert databases ?
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if ! cmp -s $db_current $db_cache; then
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# we treat sieve scripts the same way like db files
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find ${sieve_dir}/ -name "*.script" -type f | while read db_file trash; do
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cvt_to_utf8 "$db_file"
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done
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/usr/lib/cyrus-imapd/masssievec /usr/lib/cyrus-imapd/sievec
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# convert all db files
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cvt_file $imap_prefix/deliver.db "$CONFIG_DB_DUPLICATE"
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cvt_file $imap_prefix/mailboxes.db "$CONFIG_DB_MBOX"
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cvt_file $imap_prefix/tls_sessions.db "$CONFIG_DB_TLS"
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cvt_file $imap_prefix/annotations.db "$CONFIG_DB_ANNOTATION"
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find ${imap_prefix}/user/ -name "*.seen" -type f | while read db_file trash; do
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cvt_file "$db_file" "$CONFIG_DB_SEEN"
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done
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find ${imap_prefix}/user/ -name "*.sub" -type f | while read db_file trash; do
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cvt_file "$db_file" "$CONFIG_DB_SUBS"
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done
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fi
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# copy the current config file so we can check whether something has changed
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if [ $ERRVAL -eq 0 ]; then
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mv -f $db_current $db_cache
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else
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rm -f $db_cache
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rm -f $db_current
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fi
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exit $ERRVAL
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