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#!/bin/sh
#
# This shell script will generate an X509 certificate for
# your gnunet-gns-proxy and install it (for both GNUnet
# and your browser).
#
# TODO: Implement support for more browsers
# TODO: Debug and switch to the new version
# TODO - The only remaining task is fixing the getopts
# TODO: Error checks
#
# The current version partially reuses and recycles
# code from build.sh by NetBSD (although not entirely
# used because it needs debugging):
#
# Copyright (c) 2001-2011 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to
# The NetBSD Foundation by Todd Vierling and Luke Mewburn.
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
# 1. Redistributions of source code must retain the above
# copyright notice, this list of conditions and the following
# disclaimer.
# 2. Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials
# provided with the distribution.
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
# CONTRIBUTORS ``AS IS'' AND ANY EXPRESS 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 FOUNDATION OR 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.
progname=${0##*/}
setdefaults()
{
verbosity=0
runcmd=
}
statusmsg()
{
${runcmd} echo " $@"
}
infomsg()
{
if [ x$verbosity = x1 ]; then
statusmsg "INFO: $@"
fi
}
warningmsg()
{
statusmsg "WARNING: $@"
}
errormsg()
{
statusmsg "ERROR: $@"
}
linemsg()
{
statusmsg "========================================="
}
usage()
{
if [ -n "$*" ]; then
echo ""
echo "${progname}: $*"
fi
cat <<_usage_
Usage: ${progname} [-hv] [-c FILE] [...]
Options:
-c FILE Use the configuration file FILE.
-h Print this help message.
-v Print the version and exit.
-V be verbose
_usage_
exit 1
}
generate_ca()
{
echo ""
infomsg "Generating CA"
TMPDIR=${TMPDIR:-/tmp}
if [ -e "$TMPDIR" ]; then
GNSCERT=`mktemp -t certXXXXXXXX.pem` || exit 1
GNSCAKY=`mktemp -t cakyXXXXXXXX.pem` || exit 1
GNSCANO=`mktemp -t canoXXXXXXXX.pem` || exit 1
else
# This warning is mostly pointless.
warning "You need to export the TMPDIR variable"
fi
# # ------------- gnutls
#
# if ! which certutil > /dev/null
# then
# warningmsg "The 'certutil' command was not found."
# warningmsg "Not importing into browsers."
# warningmsg "For 'certutil' install nss."
# else
# # Generate CA key
# # pkcs#8 password-protects key
# certtool --pkcs8 --generate-privkey --sec-param high --outfile ca-key.pem
# # self-sign the CA to create public certificate
# certtool --generate-self-signed --load-privkey ca-key.pem --template ca.cfg --outfile ca.pem
# ------------- openssl
GNUTLS_CA_TEMPLATE=@pkgdatadir@/gnunet-gns-proxy-ca.template
OPENSSLCFG=@pkgdatadir@/openssl.cnf
CERTTOOL=""
OPENSSL=0
if test -z "`gnutls-certtool --version`" > /dev/null
then
# We only support gnutls certtool for now
if test -z "`certtool --version | grep gnutls`" > /dev/null
then
warningmsg "'gnutls-certtool' or 'certtool' command not found. Trying openssl."
if test -z "`openssl version`" > /dev/null
then
$OPENSSL=1
else
warningmsg "Install either gnutls certtool or openssl for certificate generation!"
infomsg "Cleaning up."
rm -f $GNSCAKY $GNSCERT
exit 1
fi
fi
CERTTOOL="certtool"
else
CERTTOOL="gnutls-certtool"
fi
if [ -n "${GNUNET_CONFIG_FILE}" ]; then
GNUNET_CONFIG="-c ${GNUNET_CONFIG_FILE}"
else
GNUNET_CONFIG=""
fi
GNS_CA_CERT_PEM=`gnunet-config ${GNUNET_CONFIG} -s gns-proxy -o PROXY_CACERT -f ${options}`
mkdir -p `dirname $GNS_CA_CERT_PEM`
if test 1 -eq $OPENSSL
then
openssl req -config $OPENSSLCFG -new -x509 -days 3650 -extensions v3_ca -keyout $GNSCAKY -out $GNSCERT -subj "/C=ZZ/L=World/O=GNU/OU=GNUnet/CN=GNS Proxy CA/emailAddress=bounce@gnunet.org" -passout pass:"GNU Name System"
infomsg "Removing passphrase from key"
openssl rsa -passin pass:"GNU Name System" -in $GNSCAKY -out $GNSCANO
cat $GNSCERT $GNSCANO > $GNS_CA_CERT_PEM
else
$CERTTOOL --generate-privkey --outfile $GNSCAKY
$CERTTOOL --template $GNUTLS_CA_TEMPLATE --generate-self-signed --load-privkey $GNSCAKY --outfile $GNSCERT
infomsg "Making private key available to gnunet-gns-proxy"
cat $GNSCERT $GNSCAKY > $GNS_CA_CERT_PEM
fi
}
importbrowsers()
{
if test -z "`command -v certutil`" > /dev/null 2>&1
then
warningmsg "The 'certutil' command was not found."
warningmsg "Not importing into browsers."
warningmsg "For 'certutil' install nss."
else
infomsg "Importing CA into browsers"
# TODO: Error handling?
for f in ~/.mozilla/firefox/*.*/
do
if [ -d $f ]; then
infomsg "Importing CA into Firefox at $f"
# delete old certificate (if any)
certutil -D -n "GNS Proxy CA" -d "$f" >/dev/null 2>/dev/null
# add new certificate
certutil -A -n "GNS Proxy CA" -t CT,, -d "$f" < $GNSCERT
fi
done
# TODO: Error handling?
if [ -d ~/.pki/nssdb/ ]; then
infomsg "Importing CA into Chrome at ~/.pki/nssdb/"
# delete old certificate (if any)
certutil -D -n "GNS Proxy CA" -d ~/.pki/nssdb/ >/dev/null 2>/dev/null
# add new certificate
certutil -A -n "GNS Proxy CA" -t CT,, -d ~/.pki/nssdb/ < $GNSCERT
fi
fi
}
print_version()
{
GNUNET_ARM_VERSION=`gnunet-arm -v`
echo $GNUNET_ARM_VERSION
}
clean_up()
{
infomsg "Cleaning up."
rm -f $GNSCAKY $GNSCANO $GNSCERT
if [ -e $SETUP_TMPDIR ]; then
rm -rf $SETUP_TMPDIR
fi
linemsg
statusmsg "You can now start gnunet-gns-proxy."
statusmsg "Afterwards, configure your browser "
statusmsg "to use a SOCKS proxy on port 7777. "
linemsg
}
main()
{
while getopts "vhVc:" opt; do
case $opt in
v)
print_version
exit 0
;;
h)
usage
;;
V)
verbosity=1
;;
c)
options="$options -c $OPTARG"
infomsg "Using configuration file $OPTARG"
GNUNET_CONFIG_FILE=${OPTARG}
;;
\?)
echo "Invalid option: -$OPTARG" >&2
usage
;;
:)
echo "Option -$OPTARG requires an argument." >&2
usage
;;
esac
done
setdefaults
generate_ca
importbrowsers
clean_up
}
main "$@"
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