#!/bin/bash
# Copyright 2006, Alan Hicks, Lizella, GA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

set -e

PRGNAM="postfix"
VERSION="2.4.1"
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
CWD=`pwd`
TMP=${TMP:-/tmp/SBo}
PKG="$TMP/pkg-$PRGNAM"
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
fi

CFLAGS=${CFLAGS:-$SLKCFLAGS}

config_directory=/etc/postfix
daemon_directory=/usr/libexec/postfix
command_directory=/usr/sbin
queue_directory=/var/spool/postfix
sendmail_path=/usr/sbin/sendmail
newaliases_path=/usr/bin/newaliases
mailq_path=/usr/bin/mailq
html_directory=/usr/doc/$PRGNAM-$VERSION/html
manpage_directory=/usr/man
readme_directory=/usr/doc/$PRGNAM-$VERSION/README_FILES
mail_owner=postfix
setgid_group=postdrop

# Bail if user or group isn't valid on your system
if ! grep ^postfix: /etc/passwd 2>&1 > /dev/null; then

cat << EOF

  Must have a postfix user to run this script
  Otherwise your permissions will be FUBAR

  # groupadd -g 200 postfix
  # useradd -u 200 -d /dev/null -s /bin/false -g postfix postfix

EOF

  exit
elif ! grep ^postdrop: /etc/group 2>&1 > /dev/null; then

cat << EOF

  Must have a postdrop group to run this script
  Otherwise your permissions will be FUBAR

  # groupadd -g 201 postdrop

EOF

  exit
fi

# Alan Hicks, 2006.11.10
# Phase this out.  Replace with chroot postfix set-permissions
# in doinst.sh.
fix_perms() {

config_directory=$PKG/etc/postfix
daemon_directory=$PKG/usr/libexec/postfix
command_directory=$PKG/usr/sbin
queue_directory=$PKG/var/spool/postfix
sendmail_path=$PKG/usr/sbin/sendmail
newaliases_path=$PKG/usr/bin/newaliases
mailq_path=$PKG/usr/bin/mailq
html_directory=$PKG/usr/doc/$PRGNAM-$VERSION/html
manpage_directory=$PKG/usr/man
readme_directory=$PKG/usr/doc/$PRGNAM-$VERSION/README_FILES
mail_owner=postfix
setgid_group=postdrop

# Any line beginning with # is a comment.
if echo $line | grep -v "^#" 2>&1 > /dev/null; then

  FILE="$(echo $line | awk -F: '{ print $1 }')"
  FILE_PREFIX="$(echo $FILE | cut -f 1 -d '/')"
  FILE_SUFFIX="$(echo $FILE | cut -f 2- -d '/')"
  TYPE="$(echo $line | awk -F: '{ print $2 }')"
  OWNER="$(echo $line | awk -F: '{ print $3 }')"
  GROUP="$(echo $line | awk -F: '{ print $4 }')"
  PERMS="$(echo $line | awk -F: '{ print $5 }')"

  # skip this interation if the line we're fed is no good
  if [ "$TYPE" = "h" ]; then
    continue
  elif [ "$TYPE" = "l" ]; then
    continue
  elif [ "$FILE_PREFIX" = "\$sample_directory" ]; then
    continue
  fi

  # Tag the actual groups
  if [ "$GROUP" = "-" ]; then
    GROUP=root
  elif [ "$GROUP" = "\$setgid_group" ]; then
    GROUP="$setgid_group"
  fi

  # Tag the postfix owner
  if [ "$OWNER" = "\$mail_owner" ]; then
    OWNER="$mail_owner"
  fi

  if [ "$FILE_SUFFIX" = "$FILE_PREFIX" ]; then
    FILE_SUFFIX=""
  fi

  if [ "$FILE_PREFIX" = "\$config_directory" ]; then
    chown $OWNER:$GROUP $config_directory/$FILE_SUFFIX
    chmod $PERMS $config_directory/$FILE_SUFFIX
  elif [ "$FILE_PREFIX" = "\$daemon_directory" ]; then
    chown $OWNER:$GROUP $daemon_directory/$FILE_SUFFIX
    chmod $PERMS $daemon_directory/$FILE_SUFFIX
  elif [ "$FILE_PREFIX" = "\$command_directory" ]; then
    chown $OWNER:$GROUP $command_directory/$FILE_SUFFIX
    chmod $PERMS $command_directory/$FILE_SUFFIX
  elif [ "$FILE_PREFIX" = "\$queue_directory" ]; then
    chown $OWNER:$GROUP $queue_directory/$FILE_SUFFIX
    chmod $PERMS $queue_directory/$FILE_SUFFIX
  elif [ "$FILE_PREFIX" = "\$html_directory" ]; then
    chown $OWNER:$GROUP $html_directory/$FILE_SUFFIX
    chmod $PERMS $html_directory/$FILE_SUFFIX
  elif [ "$FILE_PREFIX" = "\$manpage_directory" ]; then
    chown $OWNER:$GROUP $manpage_directory/$FILE_SUFFIX
    chmod $PERMS $manpage_directory/$FILE_SUFFIX
  elif [ "$FILE_PREFIX" = "\$readme_directory" ]; then
    chown $OWNER:$GROUP $readme_directory/$FILE_SUFFIX
    chmod $PERMS $readme_directory/$FILE_SUFFIX
  elif [ "$FILE_PREFIX" = "\$sendmail_path" ]; then
    chown $OWNER:$GROUP $sendmail_path
    chmod $PERMS $sendmail_path
  else
    echo "NOT FOUND!!! : $FILE_PREFIX"
  fi

fi

}


rm -fr $PKG $TMP/$PRGNAM-$VERSION
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
tar xvzf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION

# TLS, and SASL support
# Postfix unfortunately does not use a handy ./configure script so you
# must generate the makefiles using (what else?) "make makefiles". The
# following includes support for TLS and SASL. It should automatically
# find PCRE and DB3 support. The docs have information for adding
# additional support such as MySQL or LDAP.

make makefiles \
  CCARGS='-DUSE_SASL_AUTH -DDEF_SERVER_SASL_TYPE=\"dovecot\" -DUSE_TLS' \
  AUXLIBS="-lssl -lcrypto"

make

make non-interactive-package \
  install_root=$PKG \
  tempdir=$TMP/$PRGNAM-temp \
  config_directory=$config_directory \
  daemon_directory=$daemon_directory \
  command_directory=$command_directory \
  queue_directory=$queue_directory \
  sendmail_path=$sendmail_path \
  newaliases_path=$newaliases \
  mailq_path=$mailq_path \
  mail_owner=$mail_owner \
  setgid_group=$setgid_group \
  html_directory=$html_directory \
  manpage_directory=$manpage_directory \
  readme_directory=$readme_directory

mkdir -p $PKG/install $PKG/etc/rc.d $PKG/usr/doc/$PRGNAM-$VERSION

# Documentation mangling. :^)
cp -a AAAREADME COMPATIBILITY COPYRIGHT HISTORY IPv6-ChangeLog LICENSE \
      PORTING RELEASE_NOTES TLS_ACKNOWLEDGEMENTS TLS_CHANGES TLS_LICENSE \
      TLS_TODO US_PATENT_6321267 \
      $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/postfix.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/postfix.SlackBuild

install -m 0755 $CWD/rc.postfix  $PKG/etc/rc.d/rc.postfix.new
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

# Strip binaries and libraries - this can be done with 'make install-strip'
# in many source trees, and that's preferable if so, but if not, use this
find $PKG -type f | (while read LINE; do
if file $LINE | egrep "ELF.*(executable|shared object).*not stripped" &> /dev/null; then
  strip $LINE
fi
done)

gzip -9 $PKG/usr/man/*/*

cd $PKG/etc/postfix
# Since we gzip the manpages, let's fix the postfix-files to reflect that
# so it won't throw errors during post-install
grep manpage postfix-files | while read line; 
do MANPAGE="$(echo "$line" | cut -d: -f1)" 
  sed -i s#"$MANPAGE"#"$MANPAGE.gz"# postfix-files ; 
done

# Create .new files
for i in \
  access aliases canonical generic header_checks main.cf main.cf.default \
  makedefs.out master.cf postfix-files relocated transport virtual ;
do \
  mv $i $i.new ;
done

# Alright, let's make it.
cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.tgz