#!/bin/bash

# Copyright 2008, 2009, 2010, 2011, 2012, 2016, 2018  Patrick J. Volkerding, Sebeka, MN, USA
# 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=vsftpd
VERSION=${VERSION:-$(echo ${PKGNAM}-*.tar.gz | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-6}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i586 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
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" = "x86_64" ]; then
  LIBDIRSUFFIX="64"
else
  LIBDIRSUFFIX=""
fi

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

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

cd $TMP || exit 1
rm -rf vsftpd-$VERSION
tar xvf $CWD/vsftpd-$VERSION.tar.gz || exit 1
cd vsftpd-$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 {} \+

zcat $CWD/vsftpd.builddefs.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/vsftpd.conf.diff.gz | patch -p1 --verbose || exit 1
zcat $CWD/vsftpd.crypt.diff.gz | patch -p1 --verbose || exit 1

# Support OpenSSL 1.1.x:
zcat $CWD/0021-Introduce-support-for-DHE-based-cipher-suites.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/0035-Modify-DH-enablement-patch-to-build-with-OpenSSL-1.1.patch.gz | patch -p1 --verbose || exit 1
zcat $CWD/vsftpd.link-with-openssl-1.1.diff.gz | patch -p1 --verbose || exit 1

make $NUMJOBS || make || exit 1

mkdir -p $PKG/usr/sbin
cp vsftpd $PKG/usr/sbin
chmod 755 $PKG/usr/sbin/vsftpd
strip --strip-unneeded $PKG/usr/sbin/vsftpd

mkdir -p $PKG/usr/man/man{5,8}
cat vsftpd.conf.5 | gzip -9c > $PKG/usr/man/man5/vsftpd.conf.5.gz
cat vsftpd.8 | gzip -9c > $PKG/usr/man/man8/vsftpd.8.gz

mkdir -p $PKG/etc
cat vsftpd.conf > $PKG/etc/vsftpd.conf.new

if [ -L /lib${LIBDIRSUFFIX}/libpam.so.? ]; then
  mkdir -p $PKG/etc/pam.d
  cat RedHat/vsftpd.pam > $PKG/etc/pam.d/vsftpd.new
fi

mkdir -p $PKG/etc/logrotate.d
zcat $CWD/vsftpd.log.gz > $PKG/etc/logrotate.d/vsftpd.new

mkdir -p $PKG/usr/share/empty
mkdir -p $PKG/home/ftp

mkdir -p $PKG/usr/doc/vsftpd-$VERSION
cp -a \
  AUDIT BENCHMARKS BUGS COPYING* COPYRIGHT EXAMPLE FAQ \
  INSTALL LICENSE README* REFS REWARD SECURITY SIZE SPEED TODO TUNING \
  $PKG/usr/doc/vsftpd-$VERSION

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

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

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