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#!/bin/sh

#set -vx

PKG_BATCH=${BATCH:=NO}

PKG_PREFIX=${PKG_PREFIX:=/usr/local}

#
# create 'cyrus' user and group before installing
#

create() {
    if [ ! -x /usr/sbin/pw ]; then
        echo "*** Please add a user and a group named \`cyrus' before installing this package."
        exit 69
    fi

    if ! pw show group cyrus -q >/dev/null; then
        gid=60
        while pw show group -g ${gid} -q >/dev/null; do
            gid=`expr ${gid} + 1`
        done
        if ! pw add group cyrus -g ${gid}; then
            e=$?
            echo "*** Failed to add group \`cyrus'. Please add it manually."
            exit ${e}
        fi
        echo "*** Added group \`cyrus' (id ${gid})"
    else
        gid=`pw show group cyrus 2>/dev/null | cut -d: -f3`
    fi

    if [ -x /sbin/nologin ]; then
        shell=/sbin/nologin
    else
        shell=/nonexistent
    fi
    if ! pw show user cyrus -q >/dev/null; then
        uid=60
        while pw show user -u ${uid} -q >/dev/null; do
            uid=`expr ${uid} + 1`
        done
        if ! pw add user cyrus -u ${uid} -g ${gid} -d "/nonexistent" \
                -c "the cyrus mail server" -s "${shell}" -p "*" \
                ; then
            e=$?
            echo "*** Failed to add user \`cyrus'. Please add it manually."
            exit ${e}
        fi
        echo "*** Added user \`cyrus' (id ${uid})"
    else
        if ! pw mod user cyrus -g ${gid} -d "/nonexistent" \
                -c "the cyrus mail server" -s "${shell}" -p "*" \
                ; then
            e=$?
            echo "*** Failed to update user \`cyrus'."
            exit ${e}
        fi
        echo "*** Updated user \`cyrus'."
    fi
    if ! pw group mod cyrus -m daemon; then
        echo "*** can't add user \`daemon' to group \`cyrus'"
    fi
}


checkfile() {
    diff -bBqw $1 $1.dist >/dev/null 2>&1
    case $? in
        0)  # config file exists, but is the same
            ;;
        1)  # config file exists and differs
            echo "** Make sure $1 is in sync with this version"; 
            echo "   of the port.  See $1.dist for details."; 
            ;;
        *)  # no config file exists, copy it
            install -c -m 644 $1.dist $1
            ;;
    esac
}

# Install timseived's Cyrus.conf file

cyrus_conf() {
        if [ ! -f ${PKG_PREFIX}/lib/sasl/Cyrus.conf ]; then
                echo "pwcheck_method: pwcheck" > ${PKG_PREFIX}/lib/sasl/Cyrus.conf
        fi
}

case $2 in
    PRE-INSTALL)
        create
        ;;

    POST-INSTALL)
        cd ${PKG_PREFIX}
        cyrus_conf
        checkfile ${PKG_PREFIX}/etc/imapd.conf
        if grep '^imap4' /etc/inetd.conf; then
            echo "** Please check that your /etc/inetd.conf entry for \`imap4'"
            echo "   is suitable for the Cyrus IMAP server."
        else
            echo "** Please add an entry for the imap4 protocol to /etc/inetd.conf."
        fi
        echo
        if grep '^sieve' /etc/inetd.conf; then
            echo "** Please check that your /etc/inetd.conf entry for \`sieve'"
            echo "   is suitable for the Cyrus timsieved daemon"
        else
            echo "** Please add an entry for timseived to /etc/inetd.conf."
            echo "   If you wish to have user's upload their sieve filter"
            echo "   scripts to the server."
        fi
        echo
        echo "   An example can be found in ${PKG_PREFIX}/etc/inetd.conf.cyrus."
        if grep 'sieve' /etc/services; then
            echo
        else
            echo
            echo "** Please add an entry for the sieve protocol (2000/tcp)"
            echo "   to /etc/services"
            echo
        fi
        ;;
esac