# Tests to ensure that the monkeysphere is working
-# Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
-# Date: 2008-09-13 13:40:15-0400
+# Authors:
+# Daniel Kahn Gillmor <dkg@fifthhorseman.net>
+# Jameson Rollins <jrollins@fifthhorseman.net>
+# Micah Anderson <micah@riseup.net>
+#
+# Copyright: 2008-2009
+# License: GPL v3 or later
-# these tests might be best run under fakeroot, particularly the
-# "server-side" tests. Using fakeroot, they should be able to be run
-# as a non-privileged user.
+# these tests should all be able to run as a non-privileged user.
-# NOTE: these tests have *not* themselves been tested yet
-# (2008-09-13). Please exercise with caution!
-
-# fail on fail
+# all subcommands in this script should complete without failure:
set -e
+# piped commands should return the code of the first non-zero return
+set -o pipefail
+
+## make sure that the right tools are installed to run the test. the
+## test has *more* requirements than plain ol' monkeysphere:
+which socat || { echo "You must have socat installed to run this test." ; exit 1; }
+
+## FIXME: other checks?
# gpg command for test admin user
gpgadmin() {
GNUPGHOME="$TEMPDIR"/admin/.gnupg gpg "$@"
}
-# cleanup:
-cleanup() {
+# test ssh connection
+# first argument is expected return code from ssh connection
+ssh_test() {
+ umask 0077
+
+ CODE=${1:-0}
+
+ # start the ssh daemon on the socket
+ echo "##### starting ssh server..."
+ socat EXEC:"/usr/sbin/sshd -f ${SSHD_CONFIG} -i -D -e" "UNIX-LISTEN:${SOCKET}" 2> "$TEMPDIR"/sshd.log &
+ SSHD_PID="$!"
+
+ # wait until the socket is created before continuing
+ while [ ! -S "$SOCKET" ] ; do
+ sleep 1
+ done
+
+ set +e
+
+ # make a client connection to the socket
+ echo "##### starting ssh client..."
+ ssh-agent bash -c \
+ "monkeysphere subkey-to-ssh-agent && ssh -F $TEMPDIR/testuser/.ssh/config testhost true"
+ RETURN="$?"
+
+ # kill the sshd process if it's still running
+ kill "$SSHD_PID"
+ SSHD_PID=
+
+ set -e
+
+ echo "##### return $RETURN"
+ if [ "$RETURN" = "$CODE" ] ; then
+ echo "##### ssh connection test returned as desired"
+ return 0
+ else
+ echo "##### ssh connection test failed. expected return code $CODE"
+ return 1
+ fi
+}
- echo
+failed_cleanup() {
+ # FIXME: can we be more verbose here?
+ echo 'FAILED!'
read -p "press enter to cleanup and remove tmp:"
- echo "### stop sshd..."
- kill %1
+ cleanup
+}
+
+get_gpg_prng_arg() {
+ if (gpg --quick-random --version >/dev/null 2>&1) ; then
+ echo quick-random
+ elif (gpg --debug-quick-random --version >/dev/null 2>&1) ; then
+ echo debug-quick-random
+ fi
+}
+cleanup() {
echo "### removing temp dir..."
rm -rf "$TEMPDIR"
+ if [ "$SSHD_PID" ] ; then
+ echo "### killing off lingering sshd..."
+ kill "$SSHD_PID"
+ fi
+
wait
}
+SSHD_PID=
+
## setup trap
-trap cleanup EXIT
+trap failed_cleanup EXIT
+
+### SETUP VARIABLES
## set up some variables to ensure that we're operating strictly in
## the tests, not system-wide:
export MONKEYSPHERE_SYSDATADIR="$TEMPDIR"
export MONKEYSPHERE_SYSCONFIGDIR="$TEMPDIR"
export MONKEYSPHERE_SYSSHAREDIR="$TESTDIR"/../src
-export MONKEYSPHERE_MONKEYSPHERE_USER="$USER"
+export MONKEYSPHERE_MONKEYSPHERE_USER=$(whoami)
export MONKEYSPHERE_CHECK_KEYSERVER=false
+export MONKEYSPHERE_LOG_LEVEL=DEBUG
-SSHD_CONFIG="$TEMPDIR"/sshd_config
+export SSHD_CONFIG="$TEMPDIR"/sshd_config
export SOCKET="$TEMPDIR"/ssh-socket
+# Make sure $DISPLAY is set to convince ssh and monkeysphere to fall
+# back on $SSH_ASKPASS. Make sure it's not set to the current actual
+# $DISPLAY (if one exists) because this test suite should not be doing
+# *anything* with any running X11 session.
+export DISPLAY=monkeys
+
+### CONFIGURE ENVIRONMENTS
+
# copy in admin and testuser home to tmp
echo "### copying admin and testuser homes..."
cp -a "$TESTDIR"/home/admin "$TEMPDIR"/
cp -a "$TESTDIR"/home/testuser "$TEMPDIR"/
-cat <<EOF > "$TEMPDIR"/testuser/.ssh/config
-UserKnownHostsFile $TEMPDIR/testuser/.ssh/known_hosts
+# set up environment for testuser
+TESTHOME="$TEMPDIR"/testuser
+export GNUPGHOME="$TESTHOME"/.gnupg
+export SSH_ASKPASS="$TESTHOME"/.ssh/askpass
+export MONKEYSPHERE_HOME="$TESTHOME"/.monkeysphere
+cat <<EOF >> "$TESTHOME"/.ssh/config
+UserKnownHostsFile $TESTHOME/.ssh/known_hosts
+IdentityFile $TESTHOME/.ssh/no-such-identity
+ProxyCommand $TESTHOME/.ssh/proxy-command %h %p $SOCKET
EOF
-
-cat <<EOF > "$TEMPDIR"/testuser/.monkeysphere/monkeysphere.conf
-KNOWN_HOSTS=$TEMPDIR/testuser/.ssh/known_hosts
+cat <<EOF >> "$MONKEYSPHERE_HOME"/monkeysphere.conf
+KNOWN_HOSTS=$TESTHOME/.ssh/known_hosts
EOF
+get_gpg_prng_arg >> "$GNUPGHOME"/gpg.conf
+# set up sshd
+echo "### configuring sshd..."
+cp etc/ssh/sshd_config "$SSHD_CONFIG"
+# write the sshd_config
+cat <<EOF >> "$SSHD_CONFIG"
+HostKey ${MONKEYSPHERE_SYSDATADIR}/ssh_host_rsa_key
+AuthorizedKeysFile ${MONKEYSPHERE_SYSDATADIR}/authentication/authorized_keys/%u
+EOF
-### SERVER TESTS
-
-# setup monkeysphere temp gnupghome directories
-mkdir -p -m 750 "$MONKEYSPHERE_SYSDATADIR"/gnupg-host
-mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/gnupg-authentication
+# set up monkeysphere-server
+echo "### configuring monkeysphere..."
+mkdir -p -m 750 "$MONKEYSPHERE_SYSDATADIR"/host
+mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/authentication
+mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/authentication/authorized_keys
+mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/tmp
+cp etc/monkeysphere/monkeysphere-server.conf "$TEMPDIR"/monkeysphere-server.conf
+cat <<EOF >> "$TEMPDIR"/monkeysphere-server.conf
+AUTHORIZED_USER_IDS="$MONKEYSPHERE_HOME/authentication/authorized_user_ids"
+EOF
cat <<EOF > "$MONKEYSPHERE_SYSDATADIR"/gnupg-authentication/gpg.conf
-primary-keyring ${MONKEYSPHERE_SYSDATADIR}/gnupg-authentication/pubring.gpg
-keyring ${MONKEYSPHERE_SYSDATADIR}/gnupg-host/pubring.gpg
+primary-keyring ${MONKEYSPHERE_SYSDATADIR}/authentication/sphere/pubring.gpg
+keyring ${MONKEYSPHERE_SYSDATADIR}/host/pubring.gpg
EOF
+
+### SERVER TESTS
+
# create a new host key
echo "### generating server key..."
# add gpg.conf with quick-random
-echo "quick-random" >> "$MONKEYSPHERE_SYSCONFIGDIR"/gnupg-host/gpg.conf
-echo | monkeysphere-server gen-key --length 1024 --expire 0 testhost
+get_gpg_prng_arg >> "$MONKEYSPHERE_SYSCONFIGDIR"/gnupg-host/gpg.conf
+echo | monkeysphere-host expert gen-key --length 1024 --expire 0 testhost
# remove the gpg.conf
rm "$MONKEYSPHERE_SYSCONFIGDIR"/gnupg-host/gpg.conf
-HOSTKEYID=$( monkeysphere-server show-key | tail -n1 | cut -f3 -d\ )
+HOSTKEYID=$( monkeysphere-host show-key | grep '^OpenPGP fingerprint: ' | cut -f3 -d\ )
# certify it with the "Admin's Key".
# (this would normally be done via keyservers)
echo "### certifying server key..."
-monkeysphere-server gpg-authentication-cmd "--armor --export $HOSTKEYID" | gpgadmin --import
+monkeysphere-authentication expert gpg-cmd "--armor --export $HOSTKEYID" | gpgadmin --import
echo y | gpgadmin --command-fd 0 --sign-key "$HOSTKEYID"
# FIXME: how can we test publish-key without flooding junk into the
# add admin as identity certifier for testhost
echo "### adding admin as certifier..."
-echo y | monkeysphere-server add-identity-certifier "$TEMPDIR"/admin/.gnupg/pubkey.gpg
-
-# initialize base sshd_config
-cp etc/ssh/sshd_config "$SSHD_CONFIG"
-# write the sshd_config
-cat <<EOF >> "$SSHD_CONFIG"
-HostKey ${MONKEYSPHERE_SYSDATADIR}/ssh_host_rsa_key
-AuthorizedKeysFile ${MONKEYSPHERE_SYSDATADIR}/authorized_keys/%u
-EOF
+echo y | monkeysphere-authentication add-id-certifier "$TEMPDIR"/admin/.gnupg/pubkey.gpg
-# launch test sshd with the new host key.
-echo "### starting sshd..."
-socat EXEC:"/usr/sbin/sshd -f ${SSHD_CONFIG} -i -d -d -d -D -e" "UNIX-LISTEN:${SOCKET}" 2> "$TEMPDIR"/sshd.log &
### TESTUSER TESTS
-# generate an auth subkey for the test user
+# generate an auth subkey for the test user that expires in 2 days
echo "### generating key for testuser..."
-MONKEYSPHERE_GNUPGHOME="$TEMPDIR"/testuser/.gnupg \
-SSH_ASKPASS=echo \
- monkeysphere gen-subkey --expire 0
+monkeysphere gen-subkey --expire 2
# add server key to testuser keychain
echo "### export server key to testuser..."
-gpgadmin --armor --export "$HOSTKEYID" | \
- GNUPGHOME="$TEMPDIR"/testuser/.gnupg gpg --import
+gpgadmin --armor --export "$HOSTKEYID" | gpg --import
+
+# teach the "server" about the testuser's key
+echo "### export testuser key to server..."
+gpg --export testuser | monkeysphere-authentication gpg-cmd --import
+echo "### update server authorized_keys file for this testuser..."
+monkeysphere-authentication update-users $(whoami)
# connect to test sshd, using monkeysphere-ssh-proxycommand to verify
# the identity before connection. This should work in both directions!
-echo "### testuser connecting to sshd socket..."
-PROXY_COMMAND="monkeysphere-ssh-proxycommand --no-connect %h && socat STDIO UNIX:${SOCKET}"
-GNUPGHOME="$TEMPDIR"/testuser/.gnupg \
-MONKEYSPHERE_HOME="$TEMPDIR"/testuser/.monkeysphere \
- ssh -F "$TEMPDIR"/testuser/.ssh/config -v -v -v -oProxyCommand="$PROXY_COMMAND" testhost
+echo "### ssh connection test for success..."
+ssh_test
+
+# remove the testuser's authorized_user_ids file, update, and make
+# sure that the ssh authentication FAILS
+echo "### removing testuser authorized_user_ids and updating..."
+mv "$TESTHOME"/.monkeysphere/authorized_user_ids{,.bak}
+monkeysphere-authentication update-users $(whoami)
+echo "### ssh connection test for server authentication denial..."
+ssh_test 255
+mv "$TESTHOME"/.monkeysphere/authorized_user_ids{.bak,}
+
+# put improper permissions on authorized_user_ids file, update, and
+# make sure ssh authentication FAILS
+echo "### setting group writability on authorized_user_ids and updating..."
+chmod g+w "$TESTHOME"/.monkeysphere/authorized_user_ids
+monkeysphere-authentication update-users $(whoami)
+echo "### ssh connection test for server authentication denial..."
+ssh_test 255
+chmod g-w "$TESTHOME"/.monkeysphere/authorized_user_ids
+echo "### setting other writability on authorized_user_ids and updating..."
+chmod o+w "$TESTHOME"/.monkeysphere/authorized_user_ids
+monkeysphere-authentication update-users $(whoami)
+echo "### ssh connection test for server authentication denial..."
+ssh_test 255
+chmod o-w "$TESTHOME"/.monkeysphere/authorized_user_ids
+
+
+trap - EXIT
+
+echo
+echo "Monkeysphere basic tests completed successfully!"
+echo
+
+cleanup
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