#!/bin/bash

# Copyright 2008, 2009, 2010, 2018, 2019, 2020, 2022  Patrick J. Volkerding, Sebeka, Minnesota, USA
# Copyright 2015-2017 Giuseppe Di Terlizzi <giuseppe.diterlizzi@gmail.com>
# 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.

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=openldap
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-3}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) readelf /usr/bin/file -A | grep -E -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "armv7hl" ]; then
  SLKCFLAGS="-O3 -march=armv7-a -mfpu=vfpv3-d16"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

TMP=${TMP:-/tmp}
PKG=$TMP/package-$PKGNAM

rm -rf $PKG
mkdir -p $TMP $PKG

cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z || exit 1
cd $PKGNAM-$VERSION || exit 1

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \+

# Ensure user:group exists before building:
if ! grep -q "^ldap:" /etc/passwd ; then
  echo "ldap:x:330:330:OpenLDAP server:/var/lib/openldap:/bin/false" >> /etc/passwd
fi
if ! grep -q "^ldap:" /etc/group ; then
  echo "ldap:x:330:" >> /etc/group
fi
if ! grep -q "^ldap:" /etc/shadow ; then
  echo "ldap:*:9797:0:::::" >> /etc/shadow
fi

# Change the location of run directory into /var/run/openldap:
sed -i -e 's|%LOCALSTATEDIR%/run/|/var/run/openldap/|' \
  servers/slapd/slapd.*

# Change the location of ldapi socket into /var/run/openldap:
sed -i -e 's|\(#define LDAPI_SOCK\).*|\1 "/var/run/openldap/ldapi"|' \
  include/ldap_defaults.h

# Change the default OpenLDAP database directory:
sed -i -e 's|openldap-data|lib/openldap|' \
  servers/slapd/slapd.* include/ldap_defaults.h servers/slapd/Makefile.in

# Fix man pages:
sed -i "s/openldap\\\-data/lib\/openldap/g" doc/man/man5/slapd-config.5 doc/man/man5/slapd-bdb.5 doc/man/man5/slapd-mdb.5 doc/man/man5/slapd.conf.5

# Configure, build, and install:
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --exec-prefix=/usr \
  --sysconfdir=/etc \
  --mandir=/usr/man \
  --localstatedir=/var \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  \
  --enable-debug \
  --enable-dynamic \
  --enable-syslog \
  --enable-proctitle \
  --enable-ipv6 \
  --enable-local \
  \
  --enable-slapd \
  --enable-dynacl \
  --enable-aci \
  --enable-cleartext \
  --enable-crypt \
  --enable-lmpasswd \
  --enable-spasswd \
  --enable-modules \
  --enable-rewrite \
  --enable-rlookups \
  --enable-slapi \
  --disable-slp \
  --enable-wrappers \
  \
  --enable-backends=mod \
  --enable-bdb=yes \
  --enable-hdb=yes \
  --enable-mdb=yes \
  --enable-monitor=yes \
  --enable-perl=yes \
  --enable-argon2 \
  --with-argon2=libsodium \
  --disable-wt \
  \
  --enable-overlays=mod \
  \
  --disable-static \
  --enable-shared \
  \
  --with-cyrus-sasl \
  --without-fetch \
  --with-threads \
  --with-pic \
  --with-tls \
  \
  --build=$ARCH-slackware-linux || exit 1
make depend
make $NUMJOBS || make || exit 1
make install DESTDIR=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# Don't package this directory:
rmdir $PKG/var/run

# Fix permissions on shared libraries:
chmod 755 $PKG/usr/lib${LIBDIRSUFFIX}/*.so.*

# Restrict access to database:
if [ ! -d $PKG/var/lib/openldap ]; then
  mkdir -p $PKG/var/lib/openldap
fi
chmod 700 $PKG/var/lib/openldap

# Fix ownership:
chown -R ldap:ldap $PKG/var/lib/openldap
chown -R ldap:ldap $PKG/etc/openldap

# Get rid of .default config files:
rm -f $PKG/etc/openldap/*.default

# Move ldap.conf to ldap.conf.new and add an additional option:
mv $PKG/etc/openldap/ldap.conf $PKG/etc/openldap/ldap.conf.new
cat << EOF >> $PKG/etc/openldap/ldap.conf.new

# In order to avoid problems with self-signed certificates using TLS:
# "TLS certificate verification: Error, self signed certificate"
# See also 'man ldap.conf' or http://www.openldap.org/doc/admin/tls.html
TLS_REQCERT allow

EOF
# Move other config files to .new:
mv $PKG/etc/openldap/slapd.conf $PKG/etc/openldap/slapd.conf.new
mv $PKG/etc/openldap/slapd.ldif $PKG/etc/openldap/slapd.ldif.new

# Create a symlink for slapd in /usr/sbin:
if [ ! -x $PKG/usr/sbin/slapd ]; then
  ( cd $PKG/usr/sbin ; ln -sf ../libexec/slapd slapd )
fi

# Create OpenLDAP certificates directory:
mkdir -p $PKG/etc/openldap/certs

# Copy rc.openldap:
mkdir -p $PKG/etc/rc.d
cat $CWD/rc.openldap > $PKG/etc/rc.d/rc.openldap.new

# Copy slapd default file:
mkdir -p $PKG/etc/default
cat $CWD/slapd > $PKG/etc/default/slapd.new

# Strip binaries:
find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

# Compress manual pages:
find $PKG/usr/man -type f -exec gzip -9 {} \+
for i in $( find $PKG/usr/man -type l ) ; do
  ln -s $( readlink $i ).gz $i.gz
  rm $i
done

# Add a documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION
cp -a \
  ANNOUNCEMENT* CHANGES COPYRIGHT* INSTALL* LICENSE* README* \
  $PKG/usr/doc/${PKGNAM}-$VERSION

# If there's a CHANGES file, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r CHANGES ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat CHANGES | head -n 1000 > $DOCSDIR/CHANGES
  touch -r CHANGES $DOCSDIR/CHANGES
fi

# Include monitor backend README
cp -a \
  servers/slapd/back-monitor/README \
  $PKG/usr/doc/$PKGNAM-$VERSION/README.back-monitor

# Include Perl backend README
cp -a \
  servers/slapd/back-perl/README \
  $PKG/usr/doc/$PKGNAM-$VERSION/README.back-perl

# Include Perl backend sample file
cp -a \
  servers/slapd/back-perl/SampleLDAP.pm \
  $PKG/usr/doc/$PKGNAM-$VERSION

# Include OpenLDAP documentation
cp -a \
  doc/guide/admin/*.png \
  doc/guide/admin/*.html \
  $PKG/usr/doc/$PKGNAM-$VERSION

mkdir -p $PKG/install
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/$PKGNAM-$VERSION-$ARCH-$BUILD.txz