tor/src/test/test_key_expiration.sh
2017-09-15 09:04:22 -04:00

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#!/bin/sh
# Note: some of this code is lifted from zero_length_keys.sh and
# test_keygen.sh, and could be unified.
umask 077
set -e
if [ $# -eq 0 ] || [ ! -f ${1} ] || [ ! -x ${1} ]; then
if [ "$TESTING_TOR_BINARY" = "" ] ; then
echo "Usage: ${0} PATH_TO_TOR [case-number]"
exit 1
fi
fi
if [ $# -ge 1 ]; then
TOR_BINARY="${1}"
shift
else
TOR_BINARY="${TESTING_TOR_BINARY}"
fi
if [ $# -ge 1 ]; then
dflt=0
else
dflt=1
fi
CASE1=$dflt
CASE2=$dflt
CASE3=$dflt
if [ $# -ge 1 ]; then
eval "CASE${1}"=1
fi
dump() { xxd -p "$1" | tr -d '\n '; }
die() { echo "$1" >&2 ; exit 5; }
check_dir() { [ -d "$1" ] || die "$1 did not exist"; }
check_file() { [ -e "$1" ] || die "$1 did not exist"; }
check_no_file() { [ -e "$1" ] && die "$1 was not supposed to exist" || true; }
check_files_eq() { cmp "$1" "$2" || die "$1 and $2 did not match: `dump $1` vs `dump $2`"; }
check_keys_eq() { check_files_eq "${SRC}/keys/${1}" "${ME}/keys/${1}"; }
DATA_DIR=`mktemp -d -t tor_key_expiration_tests.XXXXXX`
if [ -z "$DATA_DIR" ]; then
echo "Failure: mktemp invocation returned empty string" >&2
exit 3
fi
if [ ! -d "$DATA_DIR" ]; then
echo "Failure: mktemp invocation result doesn't point to directory" >&2
exit 3
fi
trap "rm -rf '$DATA_DIR'" 0
# Use an absolute path for this or Tor will complain
DATA_DIR=`cd "${DATA_DIR}" && pwd`
touch "${DATA_DIR}/empty_torrc"
QUIETLY="--hush"
SILENTLY="--quiet"
TOR="${TOR_BINARY} --DisableNetwork 1 --ShutdownWaitLength 0 --ORPort 12345 --ExitRelay 0 -f ${DATA_DIR}/empty_torrc --DataDirectory ${DATA_DIR}"
##### SETUP
#
# Here we create a set of keys.
# Step 1: Start Tor with --list-fingerprint --quiet. Make sure everything is there.
echo "Setup step #1"
${TOR} --list-fingerprint ${SILENTLY} > /dev/null
check_dir "${DATA_DIR}/keys"
check_file "${DATA_DIR}/keys/ed25519_master_id_public_key"
check_file "${DATA_DIR}/keys/ed25519_master_id_secret_key"
check_file "${DATA_DIR}/keys/ed25519_signing_cert"
check_file "${DATA_DIR}/keys/ed25519_signing_secret_key"
check_file "${DATA_DIR}/keys/secret_id_key"
check_file "${DATA_DIR}/keys/secret_onion_key"
check_file "${DATA_DIR}/keys/secret_onion_key_ntor"
##### TEST CASES
echo "=== Starting key expiration tests."
FN="${DATA_DIR}/stderr"
if [ "$CASE1" = 1 ]; then
echo "==== Case 1: Test --key-expiration without argument and ensure usage"
echo " instructions are printed."
${TOR} ${QUIETLY} --key-expiration 2>"$FN" || true
grep "No valid argument to --key-expiration found!" "$FN" >/dev/null || \
die "Tor didn't mention supported --key-expiration argmuents"
echo "==== Case 1: ok"
fi
if [ "$CASE2" = 1 ]; then
echo "==== Case 2: Start Tor with --key-expiration 'sign' and make sure it prints an expiration."
${TOR} ${QUIETLY} --key-expiration sign 2>"$FN"
grep "signing-cert-expiry:" "$FN" >/dev/null || \
die "Tor didn't print an expiration"
echo "==== Case 2: ok"
fi
if [ "$CASE3" = 1 ]; then
echo "==== Case 3: Start Tor with --key-expiration 'sign', when there is no"
echo " signing key, and make sure that Tor generates a new key"
echo " and prints its certificate's expiration."
mv "${DATA_DIR}/keys/ed25519_signing_cert" \
"${DATA_DIR}/keys/ed25519_signing_cert.bak"
${TOR} --key-expiration sign > "$FN" 2>&1
grep "It looks like I need to generate and sign a new medium-term signing key" "$FN" >/dev/null || \
die "Tor didn't create a new signing key"
check_file "${DATA_DIR}/keys/ed25519_signing_cert"
grep "signing-cert-expiry:" "$FN" >/dev/null || \
die "Tor didn't print an expiration"
mv "${DATA_DIR}/keys/ed25519_signing_cert.bak" \
"${DATA_DIR}/keys/ed25519_signing_cert"
echo "==== Case 3: ok"
fi