#!/bin/bash

# Slackware build script for ModSecurity

# Written by pyllyukko

PRGNAM=modsecurity-apache
SRCNAM=modsecurity
VERSION=${VERSION:-2.9.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

CRS_VERSION="3.1.0"

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

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

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

# The package can be verified with Breno Silva Pinto's PGP key (0x6980F8B0)
# If we have GPG installed, we try to verify the signature.
if [ -x "/usr/bin/gpg" -a -x "/usr/bin/gpgv" ]
then
  set +e
  # This will check if we have the correct key in our keyring.
  # For the trustedkeys.gpg, see "man 1 gpgv".
  /usr/bin/gpg --keyring trustedkeys.gpg --no-default-keyring --list-keys 0xE4BCD2EA82E67A45 &>/dev/null
  GPG_RET=${?}
  # 2 means we don't have his key, 0 means we do.
  set -e
  # If we have the key and the signature file, we verify the package with GPG
  if [ ${GPG_RET} -eq 0 -a \
       -f "${CWD}/${SRCNAM}-${VERSION}.tar.gz.asc" ]
  then
    /usr/bin/gpgv "${CWD}/${SRCNAM}-${VERSION}.tar.gz.asc" "${CWD}/${SRCNAM}-${VERSION}.tar.gz"
  fi
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf ${SRCNAM}-${VERSION}
tar xvf $CWD/${SRCNAM}-${VERSION}.tar.gz
cd ${SRCNAM}-${VERSION}
tar xvf $CWD/owasp-modsecurity-crs-${CRS_VERSION}.tar.gz
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="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --build=$ARCH-slackware-linux

make
make install-strip DESTDIR=$PKG

# It leaves two copies of the library, we'll only need one
rm $PKG/usr/lib/*.so
rmdir --ignore-fail-on-non-empty $PKG/usr/lib

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CHANGES LICENSE NOTICE README.md README_WINDOWS.md authors.txt \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/etc/httpd/extra
cat modsecurity.conf-recommended > $PKG/etc/httpd/extra/modsecurity-recommended.conf.new
cat unicode.mapping > $PKG/etc/httpd/extra/unicode.mapping

# The Core Rule Set
mkdir -p ${PKG}/etc/httpd/crs
cp -Rv owasp-modsecurity-crs-${CRS_VERSION}/* ${PKG}/etc/httpd/crs
mv -v ${PKG}/etc/httpd/crs/crs-setup.conf.example ${PKG}/etc/httpd/crs/crs-setup.conf.new
mv -v ${PKG}/etc/httpd/crs/rules/REQUEST-900-EXCLUSION-RULES-BEFORE-CRS.conf.example ${PKG}/etc/httpd/crs/rules/REQUEST-900-EXCLUSION-RULES-BEFORE-CRS.conf.new
mv -v ${PKG}/etc/httpd/crs/rules/RESPONSE-999-EXCLUSION-RULES-AFTER-CRS.conf.example ${PKG}/etc/httpd/crs/rules/RESPONSE-999-EXCLUSION-RULES-AFTER-CRS.conf.new

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}