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#########################################################################
#
# Subroutine for the 'download' command
#
#########################################################################
#
# Copyright Rainer Wichmann (2005)
#
# License Information:
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
commandDOWNLOAD() {
printINFO "About to run \"$action\" for samhain version \"$src_version\""
needEXE du gunzip tar gpg
if test x"$simulate" = x0
then
cd "${basedir}/tmp" || printFATAL "could not cd to ${basedir}/tmp"
rm -f "samhain-${src_version}.tar.gz"
else
#
# -- Simulate only: print what would be done
#
printINFO "cd ${basedir}/tmp"
printINFO "rm -f samhain-${src_version}.tar.gz"
fi
command=""
if test -z "$command"
then
findEXE wget
if test -n "$EXECUTABLE"
then
command="$EXECUTABLE"
opt1="--quiet"
opt2="-O"
opt3="-"
fi
fi
if test -z "$command"
then
findEXE curl
if test -n "$EXECUTABLE"
then
command="$EXECUTABLE"
opt1="--silent"
opt2="--show-error"
opt3="--fail"
fi
fi
if test -z "$command"
then
findEXE lynx
if test -n "$EXECUTABLE"
then
command="$EXECUTABLE"
opt1="-source"
opt2=""
opt3=""
fi
fi
if test -z "$command"
then
findEXE links
if test -n "$EXECUTABLE"
then
command="$EXECUTABLE"
opt1="-source"
opt2=""
opt3=""
fi
fi
if test -z "$command"
then
findEXE lwp-request
if test -n "$EXECUTABLE"
then
command="$EXECUTABLE"
opt1=""
opt2=""
opt3=""
fi
fi
if test -z "$command"
then
findEXE fetch
if test -n "$EXECUTABLE"
then
command="$EXECUTABLE"
opt1="-q"
opt2="-o"
opt3="-"
fi
fi
if test -z "$command"
then
findEXE fget
if test -n "$EXECUTABLE"
then
command="$EXECUTABLE"
opt1=""
opt2=""
opt3=""
fi
fi
if test -z "$command"
then
printFATAL "No wget, curl, lynx, links, lwp-request, fetch, fget in your \$PATH, cannot download"
fi
if test x"${src_version}" = xcurrent
then
location="http://la-samhna.de/samhain/samhain-current.tar.gz"
if test -f /usr/bin/md5sum && test -f /bin/hostname
then
#
# for testing
#
dl_tmp_hna=`/bin/hostname -f 2>/dev/null`
dl_tmp_md5=`echo "x${dl_tmp_hna}" | md5sum`
if test x"$dl_tmp_md5" = "xc5f41bf28a7baf12c763f1be27a9b863"
then
location="http://localhost/samhain-current.tar.gz"
fi
fi
else
location="http://la-samhna.de/archive/samhain_signed-${src_version}.tar.gz"
if test -f /usr/bin/md5sum && test -f /bin/hostname
then
#
# for testing
#
dl_tmp_hna=`/bin/hostname -f 2>/dev/null`
dl_tmp_md5=`echo "x${dl_tmp_hna}" | /usr/bin/md5sum 2>/dev/null`
if test x"$dl_tmp_md5" = "xc5f41bf28a7baf12c763f1be27a9b863"
then
location="http://localhost/samhain_signed-${src_version}.tar.gz"
fi
fi
fi
printINFO "Executing $command $opt1 $opt2 $opt3 $location"
if test x"$simulate" = x0
then
eval "$command" "$opt1" "$opt2" "$opt3" "$location" 1>"samhain-${src_version}.tar.gz" 2>/dev/null
else
printINFO "$command" "$opt1" "$opt2" "$opt3" "$location" 1>"samhain-${src_version}.tar.gz"
printINFO "du -s -k samhain-${src_version}.tar.gz | awk '{ print $1 }'"
printLOG "Downloaded to samhain-${src_version}.tar.gz (XXX kB)"
printINFO "gunzip -c samhain-${src_version}.tar.gz | tar -tvf - "
printINFO "Source in tarball is version X.X.X"
printINFO "Unpacking to ${tmpD}"
printINFO "cd ${tmpD}"
printINFO "gunzip -c ${basedir}/tmp/samhain-${src_version}.tar.gz | tar -xf -"
printINFO "rm -f ${basedir}/tmp/samhain-${src_version}.tar.gz"
printINFO "Checking PGP signature"
printINFO "(LANG=C; gpg --status-fd 1 --verify samhain-X.X.X.tar.gz.asc samhain-X.X.X.tar.gz 2>&1 | grep 'GOODSIG')"
printINFO "cp samhain-X.X.X.tar.gz.asc samhain-X.X.X.tar.gz ${basedir}/source"
printLOG "Installed samhain (X.X.X) source"
return 0
fi
if test -f "samhain-${src_version}.tar.gz"
then
:
else
printFATAL "failed: $command $location"
fi
size=`du -s -k "samhain-${src_version}.tar.gz" | awk '{ print $1 }'`
if test $size -lt 100
then
rm -f "samhain-${src_version}.tar.gz"
printFATAL "failed: $command $location"
else
printLOG "Downloaded to samhain-${src_version}.tar.gz (${size} kB)"
fi
files=`gunzip -c "samhain-${src_version}.tar.gz" | tar -tvf - 2>/dev/null`
sig=`echo $files | egrep ' samhain.*tar\.gz\.asc$' 2>/dev/null`
sig_version=`echo $files | egrep ' samhain.*tar\.gz\.asc$' 2>/dev/null | sed 's/.*samhain\-//g' | sed 's/\.tar\.gz\.asc//g'`
if test x"$sig" = x
then
rm -f "samhain-${src_version}.tar.gz"
printFATAL "downloaded file does not contain a PGP signature"
fi
if test x"${sig_version}" = x
then
rm -f "samhain-${src_version}.tar.gz"
printFATAL "cannot determine samhain version from downloaded file"
fi
if test x"${src_version}" != xcurrent
then
if test x"${src_version}" != x"${sig_version}"
then
rm -f "samhain-${src_version}.tar.gz"
printFATAL "downloaded version (${sig_version}) != requested version (${src_version})"
fi
fi
printINFO "Source in tarball is version ${sig_version}"
printINFO "Unpacking to ${basedir}/source"
cd "${tmpD}" || {
rm -f "${basedir}/tmp/samhain-${src_version}.tar.gz"
printFATAL "could not cd to ${tmpD}"
}
gunzip -c "${basedir}/tmp/samhain-${src_version}.tar.gz" | tar -xf -
rm -f "${basedir}/tmp/samhain-${src_version}.tar.gz"
if test -f "samhain-${sig_version}.tar.gz"
then
if test -f "samhain-${sig_version}.tar.gz.asc"
then
:
else
printFATAL "not found in source: PGP signature samhain-${sig_version}.tar.gz.asc"
fi
else
printFATAL "not found in source: samhain-${sig_version}.tar.gz"
fi
printINFO "Checking PGP signature"
sig_lines=`(LANG="C"; gpg --status-fd 1 --verify "samhain-${sig_version}.tar.gz.asc" "samhain-${sig_version}.tar.gz" 2>/dev/null)`
sig_ok=`echo ${sig_lines} | grep 'GOODSIG'`
sig_nokey=`echo ${sig_lines} | grep 'NO_PUBKEY'`
if test x"${sig_nokey}" != x
then
printWARNING "Public key (ID 0F571F6C) not found, trying to import it."
gpg --import ${basedir}/private/0F571F6C.asc 2>&5
sig_ok=`(LANG="C"; gpg --status-fd 1 --verify "samhain-${sig_version}.tar.gz.asc" "samhain-${sig_version}.tar.gz" 2>/dev/null | grep 'GOODSIG')`
fi
if test x"${sig_ok}" = x
then
(LANG="C"; gpg --verify "samhain-${sig_version}.tar.gz.asc" "samhain-${sig_version}.tar.gz")
printFATAL "no good signature"
fi
cp "samhain-${sig_version}.tar.gz" "samhain-${sig_version}.tar.gz.asc" \
${basedir}/source/ || \
printFATAL "failed: cp samhain-${sig_version}.tar.gz samhain-${sig_version}.tar.gz.asc ${basedir}/source/"
printLOG "Installed samhain source (version=${sig_version})"
return 0
}
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