# This is the source.sh script. It is executed by BPM in a temporary directory when compiling a source package
# BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
# BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT

DOWNLOAD="https://downloads.sourceforge.net/infozip/unzip${BPM_PKG_VERSION//.}.tar.gz"
FILENAME="${DOWNLOAD##*/}"

# The prepare function is executed in the root of the temp directory
# This function is used for downloading files and putting them into the correct location
prepare() {
  wget "$DOWNLOAD"
  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"
  
  PATCHES=(
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-exec-shield.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-close.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-attribs-overflow.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-symlink.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-format-secure.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-valgrind.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-x-option.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-overflow.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-cve-2014-8139.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-cve-2014-8140.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-cve-2014-8141.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-overflow-long-fsize.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-heap-overflow-infloop.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-alt-iconv-utf8.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-alt-iconv-utf8-print.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/0001-Fix-CVE-2016-9844-rhbz-1404283.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-timestamp.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-cve-2018-1000035-heap-based-overflow.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-cve-2018-18384.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-${BPM_PKG_VERSION}-COVSCAN-fix-unterminated-string.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-part1.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-part2.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-part3.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-manpage.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-part4.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-part5.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-part6.patch"
    "https://src.fedoraproject.org/rpms/unzip/raw/rawhide/f/unzip-zipbomb-switch.patch"
  )
  
  for p in "${PATCHES[@]}"; do
    cd "$BPM_WORKDIR"
    wget "$p"
    cd "$BPM_SOURCE"
    patch -p1 -i ../"${p##*/}"
  done
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  # DEFINES, make, and install args from Debian
  DEFINES='-DACORN_FTYPE_NFS -DWILD_STOP_AT_DIR -DLARGE_FILE_SUPPORT \
           -DUNICODE_SUPPORT -DUNICODE_WCHAR -DUTF8_MAYBE_NATIVE -DNO_LCHMOD \
           -DDATE_FORMAT=DF_YMD -DUSE_BZIP2 -DNOMEMCPY -DNO_WORKING_ISPRINT'

  make -f unix/Makefile prefix=/usr \
          D_USE_BZ2=-DUSE_BZIP2 L_BZ2=-lbz2 \
          LF2="$LDFLAGS" CF="$CFLAGS $CPPFLAGS -I. $DEFINES" \
          unzips
  
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package() {
  make -f unix/Makefile prefix="$BPM_OUTPUT"/usr MANDIR="$BPM_OUTPUT"/usr/share/man/man1 install
  install -Dm644 LICENSE "$BPM_OUTPUT"/usr/share/licenses/unzip/LICENSE
}