#!/usr/bin/env bash
# Tests to ensure that the monkeysphere is working
+#
+# unset MONKEYSPHERE_TEST_NO_EXAMINE to examine
+
+# 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 should all be able to run as a non-privileged user.
+
+# put all the test output to stdout
+exec 2>&1
+# 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
-# Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
-# Date: 2008-09-13 13:40:15-0400
+# make sure the TESTDIR is an absolute path, not a relative one.
+export TESTDIR=$(cd $(dirname "$0") && pwd)
-# these tests might be best run under fakeroot, particularly the
-# "server-side" tests. Using fakeroot, they should be able to be run
-# as a non-privileged user.
+source "$TESTDIR"/common
-# NOTE: these tests have *not* themselves been tested yet
-# (2008-09-13). Please exercise with caution!
+## make sure that the right tools are installed to run the test. the
+## test has *more* requirements than plain ol' monkeysphere:
+[ -f /usr/sbin/sshd ] || { echo "You must have sshd installed to run this test." ; exit 1; }
+which socat >/dev/null || { echo "You must have socat installed to run this test." ; exit 1; }
-# fail on fail
-set -e
+perl -MCrypt::OpenSSL::RSA -e 1 2>/dev/null || { echo "You must have the perl module Crypt::OpenSSL::RSA installed to run this test.
+On debian-derived systems, you can set this up with:
+ apt-get install libcrypt-openssl-rsa-perl" ; exit 1; }
+
+perl -MDigest::SHA -e 1 2>/dev/null || { echo "You must have the perl module Digest::SHA installed to run this test.
+On debian-derived systems, you can set this up with:
+ apt-get install libdigest-sha-perl" ; exit 1; }
+
+## FIXME: other checks?
+
+######################################################################
+### FUNCTIONS
# gpg command for test admin user
gpgadmin() {
- GNUPGHOME="$TEMPDIR"/admin/.gnupg gpg "$@"
+ chmod 0700 "$TEMPDIR"/admin
+ GNUPGHOME="$TEMPDIR"/admin/.gnupg gpg --no-tty "$@"
}
-# cleanup:
-cleanup() {
+# test ssh connection
+# first argument is expected return code from ssh connection
+ssh_test() {
+ local RETURN=0
+
+ umask 0077
+
+ CODE=${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 2
+ done
+
+ # 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 "$SSHD_PID" || true
+ SSHD_PID=
+
+ if [ "$RETURN" = "$CODE" ] ; then
+ echo "##### ssh connection test PASSED. returned: $RETURN"
+ return 0
+ else
+ echo "##### ssh connection test FAILED. returned: $RETURN, expected: $CODE"
+ return 1
+ fi
+}
- echo
- read -p "press enter to cleanup and remove tmp:"
+SSHD_PID=
- echo "### stop sshd..."
- kill "$SSHD_PID"
+## setup trap
+trap failed_cleanup EXIT
- echo "### removing temp dir..."
- rm -rf "$TEMPDIR"
-}
-## setup trap
-trap cleanup EXIT
+######################################################################
+### SETUP VARIABLES
## set up some variables to ensure that we're operating strictly in
## the tests, not system-wide:
-export TESTDIR=$(pwd)
+# set up temp dir
+
+# NOTE: /tmp can not be used as the temp dir here, since the
+# permissions on /tmp are usually such that they will not pass the
+# monkeysphere/ssh path permission checking. If you need to use a
+# different location than the current source, please set $TMPDIR
+# somewhere with tighter permissions.
-# make temp dir
-TEMPDIR="$TESTDIR"/tmp
-if [ -e "$TEMPDIR" ] ; then
- echo "tempdir '$TEMPDIR' already exists."
- exit 1
-fi
-mkdir "$TEMPDIR"
+mkdir -p "$TESTDIR"/tmp
+TEMPDIR=$(mktemp -d "${TMPDIR:-$TESTDIR/tmp}/monkeyspheretest.XXXXXXX")
# Use the local copy of executables first, instead of system ones.
# This should help us test without installing.
-export PATH="$TESTDIR"/../src:"$TESTDIR"/../src/keytrans:"$PATH"
+export PATH="$TESTDIR"/../src:"$PATH"
export MONKEYSPHERE_SYSDATADIR="$TEMPDIR"
export MONKEYSPHERE_SYSCONFIGDIR="$TEMPDIR"
-export MONKEYSPHERE_SYSSHAREDIR="$TESTDIR"/../src
-export MONKEYSPHERE_MONKEYSPHERE_USER="$USER"
+export MONKEYSPHERE_SYSSHAREDIR="$TESTDIR"/../src/share
+export MONKEYSPHERE_MONKEYSPHERE_USER=$(whoami)
+
export MONKEYSPHERE_CHECK_KEYSERVER=false
+# example.org does not respond to the HKP port, so this should cause
+# any keyserver connection attempts that do happen (they shouldn't!)
+# to hang, so we'll notice them:
+export MONKEYSPHERE_KEYSERVER=example.org
+
+export MONKEYSPHERE_LOG_LEVEL=DEBUG
+export MONKEYSPHERE_CORE_KEYLENGTH=1024
+export MONKEYSPHERE_PROMPT=false
+
+# unset SUBKEYS_FOR_AGENT variable which, if set, would confuse the
+# into trying to use the user's key, instead of the testuser's key
+unset MONKEYSPHERE_SUBKEYS_FOR_AGENT
-SSHD_CONFIG="$TEMPDIR"/sshd_config
+export SSHD_CONFIG="$TEMPDIR"/sshd_config
export SOCKET="$TEMPDIR"/ssh-socket
-# copy in admin and testuser home to tmp
-echo "### copying admin and testuser homes..."
-cp -a "$TESTDIR"/home/admin "$TEMPDIR"/
-cp -a "$TESTDIR"/home/testuser "$TEMPDIR"/
+# 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
+# $DISPLAY (if one exists) because this test suite should not be doing
+# *anything* with any running X11 session.
+export DISPLAY=monkeys
-cat <<EOF > "$TEMPDIR"/testuser/.ssh/config
-UserKnownHostsFile $TEMPDIR/testuser/.ssh/known_hosts
-EOF
-cat <<EOF > "$TEMPDIR"/testuser/.monkeysphere/monkeysphere.conf
-KNOWN_HOSTS=$TEMPDIR/testuser/.ssh/known_hosts
+######################################################################
+### CONFIGURE ENVIRONMENTS
+
+# copy in admin and testuser home to tmp
+echo
+echo "##################################################"
+echo "### configuring testuser home..."
+(cd "$TESTDIR"/home && find testuser | cpio -pdu "$TEMPDIR")
+
+# set up environment for testuser
+export TESTHOME="$TEMPDIR"/testuser
+export GNUPGHOME="$TESTHOME"/.gnupg
+chmod 0700 "$GNUPGHOME"
+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 $SOCKET
+EOF
+cat <<EOF >> "$MONKEYSPHERE_HOME"/monkeysphere.conf
+KNOWN_HOSTS=$TESTHOME/.ssh/known_hosts
+EOF
+get_gpg_prng_arg >> "$GNUPGHOME"/gpg.conf
+
+echo
+echo "##################################################"
+echo "### configuring admin home..."
+(cd "$TESTDIR"/home && find admin | cpio -pdu "$TEMPDIR")
+
+# set up sshd
+echo
+echo "##################################################"
+echo "### configuring sshd..."
+cp "$TESTDIR"/etc/ssh/sshd_config "$SSHD_CONFIG"
+# write the sshd_config
+cat <<EOF >> "$SSHD_CONFIG"
+HostKey ${MONKEYSPHERE_SYSDATADIR}/ssh_host_rsa_key
+AuthorizedKeysFile ${MONKEYSPHERE_SYSDATADIR}/authorized_keys/%u
EOF
-### SERVER TESTS
+######################################################################
+### SERVER HOST SETUP
-# setup monkeysphere temp gnupghome directories
-mkdir -p -m 750 "$MONKEYSPHERE_SYSDATADIR"/gnupg-host
-mkdir -p -m 700 "$MONKEYSPHERE_SYSDATADIR"/gnupg-authentication
-cat <<EOF > "$MONKEYSPHERE_SYSDATADIR"/gnupg-authentication/gpg.conf
-primary-keyring ${MONKEYSPHERE_SYSDATADIR}/gnupg-authentication/pubring.gpg
-keyring ${MONKEYSPHERE_SYSDATADIR}/gnupg-host/pubring.gpg
-EOF
+# import host key
+echo
+echo "##################################################"
+echo "### import host key..."
+ssh-keygen -b 1024 -t rsa -N '' -f "$TEMPDIR"/ssh_host_rsa_key
+monkeysphere-host import-key "$TEMPDIR"/ssh_host_rsa_key testhost
-# create a new host key
-echo "### generating server key..."
-# add gpg.conf with quick-random
-echo "quick-random" >> "$MONKEYSPHERE_SYSCONFIGDIR"/gnupg-host/gpg.conf
-echo | monkeysphere-server gen-key --length 1024 --expire 0 testhost
-# remove the gpg.conf
-rm "$MONKEYSPHERE_SYSCONFIGDIR"/gnupg-host/gpg.conf
+echo
+echo "##################################################"
+echo "### getting host key fingerprint..."
+HOSTKEYID=$( monkeysphere-host show-key | grep '^OpenPGP fingerprint: ' | cut -f3 -d\ )
+echo "$HOSTKEYID"
-HOSTKEYID=$( monkeysphere-server show-key | tail -n1 | cut -f3 -d\ )
+# change host key expiration
+echo
+echo "##################################################"
+echo "### setting host key expiration..."
+monkeysphere-host set-expire 1
+# FIXME: how do we check that the expiration has really been set?
-# certify it with the "Admin's Key".
+# certify host key with the "Admin's Key".
# (this would normally be done via keyservers)
-echo "### certifying server key..."
-monkeysphere-server gpg-authentication-cmd "--armor --export $HOSTKEYID" | gpgadmin --import
+echo
+echo "##################################################"
+echo "### certifying server host key..."
+< "$MONKEYSPHERE_SYSCONFIGDIR"/ssh_host_rsa_key.pub.gpg gpgadmin --import
echo y | gpgadmin --command-fd 0 --sign-key "$HOSTKEYID"
+# FIXME: add revoker?
+
# FIXME: how can we test publish-key without flooding junk into the
# keyservers?
-# add admin as identity certifier for testhost
-echo "### adding admin as certifier..."
-echo y | monkeysphere-server add-identity-certifier "$TEMPDIR"/admin/.gnupg/pubkey.gpg
+# FIXME: should we run "diagnostics" here to test setup?
-# 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 ${MONKEYSPHERE_SYSDATADIR}/authorized_keys/%u
+
+######################################################################
+### SERVER AUTHENTICATION SETUP
+
+# set up monkeysphere authentication
+echo
+echo "##################################################"
+echo "### setup monkeysphere authentication..."
+cp "$TESTDIR"/etc/monkeysphere/monkeysphere-authentication.conf "$TEMPDIR"/
+cat <<EOF >> "$TEMPDIR"/monkeysphere-authentication.conf
+AUTHORIZED_USER_IDS="$MONKEYSPHERE_HOME/authorized_user_ids"
EOF
+monkeysphere-authentication setup
+get_gpg_prng_arg >> "$MONKEYSPHERE_SYSDATADIR"/authentication/sphere/gpg.conf
-# 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> "$TEMPDIR"/sshd.log &
-export SSHD_PID=$!
+# add admin as identity certifier for testhost
+echo
+echo "##################################################"
+echo "### adding admin as certifier..."
+monkeysphere-authentication add-id-certifier "$TEMPDIR"/admin/.gnupg/pubkey.gpg
+echo
+echo "##################################################"
+echo "### list certifiers..."
+monkeysphere-authentication list-certifiers
-### TESTUSER TESTS
+# FIXME: should we run "diagnostics" here to test setup?
-# generate an auth subkey for the test user
+######################################################################
+### TESTUSER SETUP
+
+# generate an auth subkey for the test user that expires in 2 days
+echo
+echo "##################################################"
echo "### generating key for testuser..."
-MONKEYSPHERE_GNUPGHOME="$TEMPDIR"/testuser/.gnupg \
-SSH_ASKPASS=echo \
- monkeysphere gen-subkey --expire 0
+monkeysphere gen-subkey
# add server key to testuser keychain
+echo
+echo "##################################################"
echo "### export server key to testuser..."
-gpgadmin --armor --export "$HOSTKEYID" | \
- GNUPGHOME="$TEMPDIR"/testuser/.gnupg gpg --import
-
-# connect to test sshd, using monkeysphere-ssh-proxycommand to verify
+gpgadmin --armor --export "$HOSTKEYID" | gpg --import
+
+# teach the "server" about the testuser's key
+echo
+echo "##################################################"
+echo "### export testuser key to server..."
+gpg --export testuser | monkeysphere-authentication gpg-cmd --import
+
+# update authorized_keys for user
+echo
+echo "##################################################"
+echo "### update server authorized_keys file for this testuser..."
+monkeysphere-authentication update-users $(whoami)
+# FIXME: this is maybe not failing properly for:
+# ms: improper group or other writability on path '/tmp'.
+
+######################################################################
+### TESTS
+
+# connect to test sshd, using monkeysphere ssh-proxycommand to verify
# the identity before connection. This should work in both directions!
-echo "### testuser connecting to sshd socket..."
-PROXY_COMMAND="monkeysphere-ssh-proxycommand --no-connect %h && socat STDIO UNIX:${SOCKET}"
-GNUPGHOME="$TEMPDIR"/testuser/.gnupg \
-MONKEYSPHERE_HOME="$TEMPDIR"/testuser/.monkeysphere \
- ssh -F "$TEMPDIR"/testuser/.ssh/config -v -v -v -oProxyCommand="$PROXY_COMMAND" testhost
+echo
+echo "##################################################"
+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
+echo "##################################################"
+echo "### removing testuser authorized_user_ids and updating..."
+mv "$TESTHOME"/.monkeysphere/authorized_user_ids{,.bak}
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+mv "$TESTHOME"/.monkeysphere/authorized_user_ids{.bak,}
+
+# put improper permissions on authorized_user_ids file, update, and
+# make sure ssh authentication FAILS
+echo
+echo "##################################################"
+echo "### setting group writability on authorized_user_ids and updating..."
+chmod g+w "$TESTHOME"/.monkeysphere/authorized_user_ids
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+chmod g-w "$TESTHOME"/.monkeysphere/authorized_user_ids
+echo
+echo "##################################################"
+echo "### setting other writability on authorized_user_ids and updating..."
+chmod o+w "$TESTHOME"/.monkeysphere/authorized_user_ids
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+chmod o-w "$TESTHOME"/.monkeysphere/authorized_user_ids
+monkeysphere-authentication update-users $(whoami)
+
+# test symlinks
+echo
+echo "##################################################"
+echo "### setup for symlink tests..."
+cp -a "$TESTHOME"/.monkeysphere{,.linktest}
+
+echo
+echo "##################################################"
+echo "### make authorized_user_ids an absolute symlink and updating..."
+mv "$TESTHOME"/.monkeysphere/authorized_user_ids{,.bak}
+ln -s "$TESTHOME"/.monkeysphere{.linktest,}/authorized_user_ids
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for success..."
+ssh_test
+echo
+echo "##################################################"
+echo "### create bad permissions on link dir and updating..."
+chmod o+w "$TESTHOME"/.monkeysphere.linktest
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+chmod o-w "$TESTHOME"/.monkeysphere.linktest
+echo
+echo "##################################################"
+echo "### make authorized_user_ids a relative symlink and updating..."
+ln -sf ../.monkeysphere.linktest/authorized_user_ids "$TESTHOME"/.monkeysphere/authorized_user_ids
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for success..."
+ssh_test
+echo
+echo "##################################################"
+echo "### create bad permissions on link dir updating..."
+chmod o+w "$TESTHOME"/.monkeysphere.linktest
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+chmod o-w "$TESTHOME"/.monkeysphere.linktest
+# FIXME: implement check of link path, and uncomment this test
+# echo
+# echo "##################################################"
+# echo "### create bad permissions on link dir and updating..."
+# chmod o+w "$TESTHOME"/.monkeysphere
+# monkeysphere-authentication update-users $(whoami)
+# echo
+# echo "##################################################"
+# echo "### ssh connection test for failure..."
+# ssh_test 255
+# chmod o-w "$TESTHOME"/.monkeysphere
+rm "$TESTHOME"/.monkeysphere/authorized_user_ids
+mv "$TESTHOME"/.monkeysphere/authorized_user_ids{.bak,}
+
+echo
+echo "##################################################"
+echo "### make .monkeysphere directory an absolute symlink and updating..."
+mv "$TESTHOME"/.monkeysphere{,.bak}
+ln -s "$TESTHOME"/.monkeysphere{.linktest,}
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for success..."
+ssh_test
+echo
+echo "##################################################"
+echo "### create bad permissions on link dir and updating..."
+chmod o+w "$TESTHOME"/.monkeysphere.linktest
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+chmod o-w "$TESTHOME"/.monkeysphere.linktest
+echo
+echo "##################################################"
+echo "### make .monkeysphere directory a relative symlink and updating..."
+ln -sfn .monkeysphere{.linktest,}
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for success..."
+ssh_test
+echo
+echo "##################################################"
+echo "### create bad permissions on link dir updating..."
+chmod o+w "$TESTHOME"/.monkeysphere.linktest
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+chmod o-w "$TESTHOME"/.monkeysphere.linktest
+rm "$TESTHOME"/.monkeysphere
+mv "$TESTHOME"/.monkeysphere{.bak,}
+
+# ensure we're back to normal:
+echo
+echo "##################################################"
+echo "### making sure we are back to normal..."
+monkeysphere-authentication update-users $(whoami)
+ssh_test
+
+echo
+echo "##################################################"
+echo "### ssh connection test with hostname 'testhost2' added..."
+monkeysphere-host add-hostname testhost2
+ssh_test
+
+echo
+echo "##################################################"
+echo "### ssh connection test for failure with 'testhost' revoked..."
+monkeysphere-host revoke-hostname testhost
+ssh_test 255
+
+# FIXME: addtest: remove admin as id-certifier and check ssh failure
+
+# FIXME: addtest: how do we test that set-expire makes sense after new
+# hostnames have been added?
+
+# FIXME: addtest: revoke the host key and check ssh failure
+
+# test to make sure things are OK after the previous tests:
+echo
+echo "##################################################"
+echo "### settings reset, updating..."
+monkeysphere-authentication update-users $(whoami)
+echo
+echo "##################################################"
+echo "### ssh connection test for success..."
+ssh_test
+
+echo
+echo "##################################################"
+echo "### revoking host key..."
+# generate the revocation certificate and feed it directly to the test
+# user's keyring (we're not publishing to the keyservers)
+monkeysphere-host revoke-key | gpg --import
+echo
+echo "##################################################"
+echo "### ssh connection test for failure..."
+ssh_test 255
+
+
+######################################################################
+
+trap - EXIT
+
+echo
+echo "##################################################"
+echo " Monkeysphere basic tests completed successfully!"
+echo "##################################################"
+
+cleanup