#!/bin/bash

# Slackware build script for nagios

# Copyright 2009-2013 Niels Horn, Rio de Janeiro, RJ, Brazil
# Copyright 2014, 2015, 2016, 2017  Mario Preksavec, Zagreb, Croatia
# 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.

PRGNAM=nagios
VERSION=${VERSION:-4.3.4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

DOCROOT=${DOCROOT:-/var/www/htdocs}

# To create valid symlinks, we need a relative path from DOCROOT
RELPATH=""
for i in $(echo $DOCROOT | tr "/" " "); do
  RELPATH="${RELPATH}../"
done

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

USERNAME=${USERNAME:-nagios}
GROUPNAME=${GROUPNAME:-nagios}
USERID=${USERID:-213}
GROUPID=${GROUPID:-213}
HOMEDIR=${HOMEDIR:-/var/nagios}
SHELLNAME=${SHELLNAME:-/bin/bash}

GETUSER=$(getent passwd $USERNAME)
GETGROUP=$(getent group $GROUPNAME)

set -e

if [ -z "$GETUSER" -o -z "$GETGROUP" ]; then
  printf "\n  You must have a \"$PRGNAM\" user and a group to run this script\n\n"
  [ -z "$GETGROUP" ] && printf "  # groupadd -g $GROUPID $GROUPNAME\n"
  [ -z "$GETUSER" ] && printf "  # useradd -u $USERID -d $HOMEDIR -s $SHELLNAME -g $GROUPNAME $USERNAME\n"
  printf "\n"
  exit 1
fi

if [[ ! $GETUSER =~ ^$USERNAME:[^:]+:$USERID:$GROUPID:[^:]*:$HOMEDIR:$SHELLNAME$ ]]; then
  printf "\n  You must update the \"$PRGNAM\" user to run this script\n\n"
  [[ $GETUSER =~ ^[^:]+:[^:]+:[^:]+:[^:]+:[^:]*:([^:]+):([^:]+)$ ]]
  [ "${BASH_REMATCH[1]}" != "$HOMEDIR" ] && printf "  # usermod -d $HOMEDIR $USERNAME\n"
  [ "${BASH_REMATCH[2]}" != "$SHELLNAME" ] && printf "  # usermod -s $SHELLNAME $USERNAME\n"
  printf "\n"
  exit 1
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

CFLAGS="$SLKCFLAGS -w -Wl,--allow-multiple-definition" \
  ./configure \
  --prefix=/usr \
  --sbindir=/usr/sbin/$PRGNAM \
  --datadir=$DOCROOT/$PRGNAM \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --libexecdir=/usr/libexec/$PRGNAM \
  --sysconfdir=/etc/$PRGNAM \
  --localstatedir=/var/$PRGNAM \
  --mandir=/usr/man \
  --build=$ARCH-slackware-linux \
  --with-httpd-conf=/etc/httpd/extra \
  --with-checkresult-dir=/var/spool/$PRGNAM \
  --with-init-dir=/etc/rc.d \
  --with-lockfile=/var/run/nagios/nagios.lock

make all

export DESTDIR=$PKG
echo "*** make install ***"
make install
echo "*** make install-init ***"
make install-init
echo "*** make install-commandmode ***"
make install-commandmode
echo "*** make install-config ***"
make install-config
# Need to create the $PKG/etc/httpd/extra directory (this is a bug in Makefile.in)
mkdir -p $PKG/etc/httpd/extra
echo "*** make install-webconf ***"
make install-webconf
# Following upstream, the "exfoliation" theme is now the default...
echo "*** make install-exfoliation ***"
make install-exfoliation
# ...but, if you prefer the "classic" theme, uncomment the next two lines, as they
#    will overwrite the new theme:
#echo "*** make install-classicui ***"
#make install-classicui

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

# Use monitoring-plugins instead of nagios-plugins
sed -i 's#\($USER1$=/usr/libexec/\)nagios#\1monitoring-plugins#' \
  $PKG/etc/nagios/resource.cfg

# Change configuration files to .new
find $PKG/etc/$PRGNAM/ -name *.cfg | while read cfg ; do mv $cfg $cfg.new ; done
mv $PKG/etc/httpd/extra/nagios.conf $PKG/etc/httpd/extra/nagios.conf.new
# cfg files may contain passwords, so we don't want 'others' to read them
chmod -R g-w,o-rx $PKG/etc/$PRGNAM

# Create directory for lock-file
mkdir -p $PKG/var/run/nagios

# Change init script and leave it -x
mv $PKG/etc/rc.d/$PRGNAM $PKG/etc/rc.d/rc.$PRGNAM.new
chmod -x $PKG/etc/rc.d/rc.$PRGNAM.new

# Move documentation to right location
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  Changelog INSTALLING LEGAL LICENSE README THANKS UPGRADING contrib \
    $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/$DOCROOT/$PRGNAM/docs $PKG/usr/doc/$PRGNAM-$VERSION/html
find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
cat $CWD/README.SLACKWARE > $PKG/usr/doc/$PRGNAM-$VERSION/README.SLACKWARE

# Fixup some ownership and permission issues
chown root:root $PKG/usr/sbin
chown -R root:nagios $PKG/usr/sbin/$PRGNAM
chmod -R 0754 $PKG/usr/sbin/$PRGNAM
chown root:root $PKG/usr/bin
chmod 0755 $PKG/usr/bin
chown root:nagios $PKG/usr/bin/*
chmod 0754 $PKG/usr/bin/*
chown nagios:nagios $PKG/var/run/$PRGNAM
chmod 0775 $PKG/var/run/$PRGNAM

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

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}