#!/bin/sh
# -*- mode: sh; tab-width: 8; encoding: utf-8-unix -*-

prog=$( basename $0 .bash )
ROLE=base
. /usr/local/bin/usr_local_tput.bash

PYVER=3
PYTHON_MINOR=$( python$PYVER --version 2>&1| sed -e 's@^.* @@' -e 's@\.[0-9]*$@@' )

[ -d /etc/portage ] || exit 0

usage () { echo "USAGE: $prog [command args] -" $* ; exit 1 ; }
error () { retval=$1 ; shift; ERROR "$prog" $* ; exit $retval ; }
warn () { : ; }
info () { : ; }
debug () { : ; }

# must be run as root
[ "$( id -u )" -ne "0" ] && error 1 "must be run as root"

[ -f /etc/portage/package.use/2021-00_verify-sig.txt ] || \
  touch /etc/portage/package.use/2021-00_verify-sig.txt || exit 2

equery h -F '$cp:$slot' verify-sig | \
  sed -e 's/:0.*//' | while read b ; do \
    grep -q "^$b " /etc/portage/package.use/2021-00_verify-sig.txt && continue
    eix -r "^$b$" | grep -q Installed && \
	echo '#' $b verify-sig>>/etc/portage/package.use/2021-00_verify-sig.txt || \
	echo '##' $b verify-sig>>/etc/portage/package.use/2021-00_verify-sig.txt
done

[ -f /usr/lib/python$PYTHON_MINOR/site-packages/portage/eclass_cache.py.diff ] || \
    cat >  /usr/lib/python$PYTHON_MINOR/site-packages/portage/eclass_cache.py.diff << EOF
*** eclass_cache.py.dst	2021-06-13 21:26:05.000000000 +0000
--- eclass_cache.py	2021-06-24 10:45:12.422857990 +0000
***************
*** 166,175 ****
--- 166,176 ----
  		return d

  	def get_eclass_data(self, inherits):
  		ec_dict = {}
  		for x in inherits:
+ 			if x not in self.eclasses: continue
  			ec_dict[x] = self.eclasses[x]

  		return ec_dict

  	@property
EOF
[ -f /usr/lib/python$PYTHON_MINOR/site-packages/portage/eclass_cache.py.dst ] || \
  patch -b -z .dst /usr/lib/python$PYTHON_MINOR/site-packages/portage/eclass_cache.py \
    < /usr/lib/python$PYTHON_MINOR/site-packages/portage/eclass_cache.py.diff

[ -f /usr/portage/eclass/verify-sig.eclass.diff  ] || \
    cat > /usr/portage/eclass/verify-sig.eclass.diff  << EOF
*** /usr/portage/eclass/verify-sig.eclass.dst	2021-07-29 06:09:55.000000000 +0000
--- /usr/portage/eclass/verify-sig.eclass	2021-08-18 19:13:29.502980940 +0000
***************
*** 86,95 ****
--- 86,99 ----
  	[[ -n ${key} ]] ||
  		die "${FUNCNAME}: no key passed and VERIFY_SIG_OPENPGP_KEY_PATH unset"

  	local extra_args=()
  	[[ ${VERIFY_SIG_OPENPGP_KEY_REFRESH} == yes ]] || extra_args+=( -R )
+ # gemato	  -R, --no-refresh-keys
+ #                        Disable refreshing OpenPGP key (prevents network
+ #                        access, applicable when using -K only)
+ 	[ -z "$http_proxy" ] || extra_args+=( --proxy $http_proxy  )
  	[[ -n ${VERIFY_SIG_OPENPGP_KEYSERVER+1} ]] && extra_args+=(
  		--keyserver "${VERIFY_SIG_OPENPGP_KEYSERVER}"
  	)

  	# GPG upstream knows better than to follow the spec, so we can't
***************
*** 98,110 ****
  	addpredict /run/user

  	local filename=${file##*/}
  	[[ ${file} == - ]] && filename='(stdin)'
  	einfo "Verifying ${filename} ..."
! 	gemato gpg-wrap -K "${key}" "${extra_args[@]}" -- \
! 		gpg --verify "${sig}" "${file}" ||
! 		die "PGP signature verification failed"
  }

  # @FUNCTION: verify-sig_verify_message
  # @USAGE: <file> <output-file> [<key-file>]
  # @DESCRIPTION:
--- 102,121 ----
  	addpredict /run/user

  	local filename=${file##*/}
  	[[ ${file} == - ]] && filename='(stdin)'
  	einfo "Verifying ${filename} ..."
! 	einfo gemato gpg-wrap -K "${key}" "${extra_args[@]}" -- \
! 		gpg  --verify --disable-dirmngr \
! 		 "${sig}" "${file}"
! 	# 		--keyserver-options http-proxy=http://localhost:3128
! 	einfo `env |sort`
! 	# env - is necessary andx sufficient
! 	env - gemato gpg-wrap -K "${key}" "${extra_args[@]}" -- \
! 		gpg  --verify --disable-dirmngr \
! 		"${sig}" "${file}" || \
! 			die "PGP signature verification failed"
  }

  # @FUNCTION: verify-sig_verify_message
  # @USAGE: <file> <output-file> [<key-file>]
  # @DESCRIPTION:
***************
*** 122,131 ****
--- 133,143 ----
  	[[ -n ${key} ]] ||
  		die "${FUNCNAME}: no key passed and VERIFY_SIG_OPENPGP_KEY_PATH unset"

  	local extra_args=()
  	[[ ${VERIFY_SIG_OPENPGP_KEY_REFRESH} == yes ]] || extra_args+=( -R )
+ 	[ -z "$http_proxy" ] || extra_args+=( --proxy $http_proxy  )
  	[[ -n ${VERIFY_SIG_OPENPGP_KEYSERVER+1} ]] && extra_args+=(
  		--keyserver "${VERIFY_SIG_OPENPGP_KEYSERVER}"
  	)

  	# GPG upstream knows better than to follow the spec, so we can't
***************
*** 134,146 ****
  	addpredict /run/user

  	local filename=${file##*/}
  	[[ ${file} == - ]] && filename='(stdin)'
  	einfo "Verifying ${filename} ..."
! 	gemato gpg-wrap -K "${key}" "${extra_args[@]}" -- \
! 		gpg --verify --output="${output_file}" "${file}" ||
! 		die "PGP signature verification failed"
  }

  # @FUNCTION: verify-sig_verify_signed_checksums
  # @USAGE: <checksum-file> <algo> <files> [<key-file>]
  # @DESCRIPTION:
--- 146,165 ----
  	addpredict /run/user

  	local filename=${file##*/}
  	[[ ${file} == - ]] && filename='(stdin)'
  	einfo "Verifying ${filename} ..."
! 	einfo gemato gpg-wrap -K "${key}" "${extra_args[@]}" -- \
! 		gpg --verify --disable-dirmngr --output="${output_file}" \
! 		"${file}"
! #		--keyserver-options http-proxy=http://localhost:3128
! 	einfo `env |sort`
! 	# env - is necessary and sufficient
! 	env - gemato gpg-wrap -K "${key}" "${extra_args[@]}" -- \
! 		gpg --verify --disable-dirmngr --output="${output_file}" \
! 		"${file}" || \
! 			die "PGP signature verification failed"
  }

  # @FUNCTION: verify-sig_verify_signed_checksums
  # @USAGE: <checksum-file> <algo> <files> [<key-file>]
  # @DESCRIPTION:
EOF

[ -f /usr/portage/eclass/verify-sig.eclass.dst ] || \
    patch -b -z .dst /usr/portage/eclass/verify-sig.eclass \
	  <   /usr/portage/eclass/verify-sig.eclass.diff || exit    3