#!/bin/bash

# tigervnc.SlackBuild
# Heavily based on the original Slackware build scripts,
# Modified by Stuart Winter for Slackware ARM.
#
# Copyright 2010, 2011, 2012, 2013  Eric Hameleers, Eindhoven. NL
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS 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.

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
slackset_var_cwds

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Add -fPIC to CFLAGS:
case $ARCH in
   arm|aarch64) export SLKCFLAGS="$SLKCFLAGS -fPIC"
                export LIBDIRSUFFIX="" ;;
   *)           export SLKCFLAGS="-O2" ;;
esac

# Do we build the java applet (needs jdk)?
DO_APPLET=${DO_APPLET:-"NO"}

# TigerVNC needs to use source of the X.Org server whose version matches
# that of your installed X.Org package:
XORG=${XORG:-$(X -version 2>&1 | grep "^X.Org X Server " | cut -f4 -d' ')}
MAXPATCHVER="$(echo $XORG | cut -f1,2 -d. | tr -d '.')"
# ******************** #
# HACK for 14.2 patch:
MAXPATCHVER=120
# ******************** #

# OS Stamp into the binaries:
OSNAME="$(head -1 /etc/slackware-version)"
OSVENDOR="Slackware Linux Project"
BUILDER="Built by MoZes on $(date -u)"

# This covers most filenames you'd want as documentation. Change if needed.
DOCS="BUILDING.txt LICENCE.TXT README.txt doc/TODO doc/*.txt doc/*.odt"
DOCS_XORG="COPYING ChangeLog"

case "$ARCH" in
    arm*) TARGET=${SLK_ARCH_BUILDTARGET} ;;
    *)    TARGET=${SLK_ARCH_BUILDTARGET} ;;
esac

# Create some build framework:
mkdir -p $TMPBUILD/deps/usr

# Extract source:
tar xvvf $CWD/sources/$PKGNAM-$VERSION.tar.?z* || exit 1
tar xvvf $CWD/sources/xorg-server-${XORG}.tar.?z* || exit 1
#tar xvvf $SLACKSOURCE/x/x11/src/xserver/xorg-server-${XORG}*z
slackhousekeeping

### BEGIN PATCHES FROM source/x/x11/patch
( cd xorg-server-${XORG}
  zcat $CWD/patches/xorg-server/x11.startwithblackscreen.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.combo.mouse.keyboard.layout.patch.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-10971.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-10972.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-13721.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-13723.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12176.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12177.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12178.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12179_p1.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12179_p2.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12180_12181_12182.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12183.diff.gz | patch -p1 --verbose || exit 1
  zcat $CWD/patches/xorg-server/xorg-server.CVE-2017-12184_12185_12186_12187.diff.gz | patch -p1 --verbose || exit 1
) || exit 1
### END PATCHES FROM source/x/x11/patch

export LDFLAGS="$SLKLDFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export CFLAGS="$SLKCFLAGS"

cat <<EOT
#
# Compile tigervnc:
#
EOT

cd $PKGNAM-$VERSION || exit 1

# HACK! Force protocol 3.3 for UVNCSC
zcat $CWD/patches/force_protocol_3.3_for_UVNCSC.patch.gz | patch -p1 || exit 1

# Explicitly link against libpng to prevent linking errors:
zcat $CWD/patches/tigervnc13_link_png.patch.gz | patch -p1 --verbose || exit 1

[ "$DO_APPLET" = "YES" ] && CMAKE_JAVA="ON" || CMAKE_JAVA="OFF"
# Explicitly put the java applet into a directory named 'tigervnc':
sed -i -e 's#/vnc/class#/tigervnc/class#'g $(grep -rl vnc/class .)
sed -i -e 's#DESTINATION vnc/class#DESTINATION share/tigervnc/class#'g $(grep -rl vnc/class .)

export LDFLAGS="$SLKLDFLAGS -ldl -lpthread"
export CXXFLAGS="$SLKCFLAGS -fpermissive -I $(pwd)/common"

# Fix the man page and documentation installation:
sed -e 's,set(MAN_DIR "${DATA_DIR}/man"),set(MAN_DIR "${MAN_INSTALL_DIR}"),' \
    -e 's,set(DOC_DIR "${CMAKE_INSTALL_PREFIX}/share/,set(DOC_DIR "${CMAKE_INSTALL_PREFIX}/,' \
    -i CMakeLists.txt

echo -e "\n*** Building vnc client ***\n"
cmake \
  -G "Unix Makefiles" \
  -Wno-dev \
  -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
  -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -DMAN_INSTALL_DIR=/usr/man \
  -DSYSCONF_INSTALL_DIR=/etc \
  -DLIB_SUFFIX=${LIBDIRSUFFIX} \
  -DENABLE_PAM:BOOL=OFF \
  -DBUILD_JAVA:BOOL=${CMAKE_JAVA} \
  .
make V=1 $NUMJOBS || make || exit 1
make DESTDIR=$PKG install || exit 1

# Do we have a patch for X.Org which tigervnc does not have?
if [ ! -f unix/xserver${MAXPATCHVER}.patch.gz -a -f $CWD/patches/xserver${MAXPATCHVER}.patch.gz ]
then
  cp $CWD/patches/xserver${MAXPATCHVER}.patch.gz unix/
fi

# Prepare the Xvnc sources (we are building out-of-tree, in ./build directory):
mkdir -p build/unix
cp -R unix/xserver unix/xserver${MAXPATCHVER}.patch.gz build/unix/
cp -R ../xorg-server-${XORG}/* build/unix/xserver/

cd build/unix/xserver/
  # Patch the xorg-server source to include building vnc driver:
  zcat ../xserver${MAXPATCHVER}.patch.gz | patch -p1 --verbose
  echo -e "\n*** Building vnc server ***\n"
  autoreconf -vif

  # Default font paths to be used by the X server
  DEF_FONTPATH="/usr/share/fonts/local,/usr/share/fonts/TTF,/usr/share/fonts/OTF,/usr/share/fonts/Type1,/usr/share/fonts/misc,/usr/share/fonts/CID,/usr/share/fonts/75dpi/:unscaled,/usr/share/fonts/100dpi/:unscaled,/usr/share/fonts/75dpi,/usr/share/fonts/100dpi,/usr/share/fonts/cyrillic"

  CFLAGS="$CFLAGS" \
  ./configure \
    --prefix=/usr \
    --libdir=/usr/lib${LIBDIRSUFFIX} \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --mandir=/usr/man \
    --disable-dri  --enable-dri2  --disable-dri3 \
    --disable-static \
    --disable-xorg --disable-xnest --disable-xvfb --disable-dmx \
    --disable-xwin --disable-xephyr --disable-kdrive --disable-xwayland \
    --enable-composite \
    --enable-glx --enable-glx-tls \
    --enable-install-libxf86config \
    --enable-xcsecurity \
    --enable-xinerama \
    --with-int10=x86emu \
    --with-default-font-path="${DEF_FONTPATH}" \
    --with-dri-driver-path=/usr/lib${LIBDIRSUFFIX}/xorg/modules/dri \
    --with-module-dir=/usr/lib${LIBDIRSUFFIX}/xorg/modules \
    --with-pic \
    --with-xkb-path=/etc/X11/xkb \
    --with-xkb-output=/var/lib/xkb \
    --disable-config-dbus \
    --disable-config-hal \
    --disable-config-udev \
    --disable-docs --disable-devel-docs \
    --disable-selective-werror \
    --disable-unit-tests \
    --without-dtrace \
    --with-os-name="$OSNAME" \
    --with-os-vendor="$OSVENDOR" \
    --with-builderstring="$BUILDER" \
    --build=$TARGET || exit 1

  make V=1 TIGERVNC_SRCDIR="$TMPBUILD/${PKGNAM}-${VERSION}" $NUMJOBS || exit 1
  make TIGERVNC_SRCDIR="$TMPBUILD/${PKGNAM}-${VERSION}" -C hw/vnc \
    DESTDIR=$PKG install || exit 1
cd -

# Provide a sample configuration for the libvnc.so extension of X.Org,
# documentation is available inside the file:
mkdir -p $PKG/etc/X11/xorg.conf.d
install -m644 $CWD/10-libvnc.conf $PKG/etc/X11/xorg.conf.d/10-libvnc.conf.new

# Install menu entry:
mkdir -p $PKG/usr/share/{applications,icons/hicolor/{16x16,24x24,32x32,48x48}/apps}
for PSIZE in 16 24 32 48; do
  install -m644 media/icons/tigervnc_${PSIZE}.png \
    $PKG/usr/share/icons/hicolor/${PSIZE}x${PSIZE}/apps/tigervnc.png
done
cat <<EOT > $PKG/usr/share/applications/tigervnc.desktop
[Desktop Entry]
Encoding=UTF-8
Name=TigerVNC Viewer
GenericName=VNCViewer (RFB Client)
Comment=Connect to remote desktop
SwallowExec=
Exec=vncviewer
MimeType=
Icon=tigervnc
Path=
TerminalOptions=
Terminal=false
Type=Application
Categories=Network;
StartupWMClass=VNC Viewer: Connection Details
EOT

# Add this to the doinst.sh:
! [ -d $PKG/install ] && mkdir -p $PKG/install
cat <<EOT >> $PKG/install/doinst.sh
# Handle the incoming configuration files:
config() {
  for infile in \$1; do
    NEW="\$infile"
    OLD="\`dirname \$NEW\`/\`basename \$NEW .new\`"
    # If there's no config file by that name, mv it over:
    if [ ! -r \$OLD ]; then
      mv \$NEW \$OLD
    elif [ "\`cat \$OLD | md5sum\`" = "\`cat \$NEW | md5sum\`" ]; then
      # toss the redundant copy
      rm \$NEW
    fi
    # Otherwise, we leave the .new copy for the admin to consider...
  done
}

config etc/X11/xorg.conf.d/10-libvnc.conf.new

# Update the desktop database:
if [ -x usr/bin/update-desktop-database ]; then
  chroot . /usr/bin/update-desktop-database usr/share/applications 1>/dev/null 2>&1
fi

# Update the mime database:
if [ -x usr/bin/update-mime-database ]; then
  chroot . /usr/bin/update-mime-database usr/share/mime 1>/dev/null 2>&1
fi

# Update hicolor theme cache:
if [ -d usr/share/icons/hicolor ]; then
  if [ -x usr/bin/gtk-update-icon-cache ]; then
    chroot . /usr/bin/gtk-update-icon-cache -f -t usr/share/icons/hicolor 1> /dev/null 2> /dev/null
  fi
fi

EOT

# Add documentation:
# First, remove files which were misplaced:
rm -f $PKG/usr/doc/* 2> /dev/null
cd $TMPBUILD/${PKGNAM}-${VERSION} || exit 1
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PKGNAM-$VERSION || true
for FIL in $(echo $DOCS_XORG); do cp -a build/unix/xserver/$FIL $PKG/usr/doc/$PKGNAM-$VERSION/${FIL}.xorg ; done || true
#cat $CWD/$(basename $0) > $PKG/usr/doc/$PKGNAM-$VERSION/$PKGNAM.SlackBuild

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
#slackstriprpaths     # strip rpaths
slack_delete_lafiles # delete usr/lib{,64}/*.la
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh

# /extra has packages in separate dirs:
export PKGSERIES=$PKGSERIES/$PKGNAM

slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG
slackhlinks     # search for any hard links