tests/delta: new tests for signed deltas

Add tests to generate signed deltas and verify them using 'dummy'
signature engine.

Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>

Makefile-tests.am

@@ -114,6 +114,7 @@ _installed_or_uninstalled_test_scripts = \
 	tests/test-reset-nonlinear.sh \
 	tests/test-oldstyle-partial.sh \
 	tests/test-delta.sh \
+	tests/test-delta-sign.sh \
 	tests/test-xattrs.sh \
 	tests/test-auto-summary.sh \
 	tests/test-prune.sh \

tests/test-delta-sign.sh

@@ -0,0 +1,131 @@
+#!/bin/bash
+#
+# Copyright (C) 2011,2013 Colin Walters <walters@verbum.org>
+#
+# SPDX-License-Identifier: LGPL-2.0+
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the
+# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+set -euo pipefail
+
+. $(dirname $0)/libtest.sh
+
+skip_without_user_xattrs
+
+bindatafiles="bash true ostree"
+
+echo '1..3'
+
+# This is explicitly opt in for testing
+export OSTREE_DUMMY_SIGN_ENABLED=1
+
+mkdir repo
+ostree_repo_init repo --mode=archive
+
+mkdir files
+for bin in ${bindatafiles}; do
+    cp $(which ${bin}) files
+done
+
+${CMD_PREFIX} ostree --repo=repo commit -b test -s test --tree=dir=files
+
+function permuteFile() {
+    permutation=$(($1 % 2))
+    output=$2
+    case $permutation in
+	0) dd if=/dev/zero count=40 bs=1 >> $output;;
+	1) echo aheader | cat - $output >> $output.new && mv $output.new $output;;
+    esac
+}
+
+function permuteDirectory() {
+    permutation=$1
+    dir=$2
+    for x in ${dir}/*; do
+	for z in $(seq ${permutation}); do
+	    permuteFile ${z} ${x}
+	done
+    done
+}
+
+get_assert_one_direntry_matching() {
+    local path=$1
+    local r=$2
+    local child=""
+    local bn
+    for p in ${path}/*; do
+	bn=$(basename $p)
+	if ! echo ${bn} | grep -q "$r"; then
+	    continue
+	fi
+	if test -z "${child}"; then
+	    child=${bn}
+	else
+	    assert_not_reached "Expected only one child matching ${r} in ${path}";
+	fi
+    done
+    if test -z "${child}"; then
+	assert_not_reached "Failed to find child matching ${r}"
+    fi
+    echo ${child}
+}
+
+origrev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
+
+permuteDirectory 1 files
+${CMD_PREFIX} ostree --repo=repo commit -b test -s test --tree=dir=files
+
+newrev=$(${CMD_PREFIX} ostree --repo=repo rev-parse test)
+
+${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev}
+${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-not-signed.txt 2>&1 && exit 1
+assert_file_has_content show-not-signed.txt "Verification fails"
+assert_file_has_content show-not-signed.txt "no signatures in static-delta"
+
+deltaprefix=$(get_assert_one_direntry_matching repo/deltas '.')
+deltadir=$(get_assert_one_direntry_matching repo/deltas/${deltaprefix} '-')
+
+rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
+${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline
+${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-inline-not-signed.txt 2>&1 && exit 1
+assert_file_has_content show-not-signed.txt "Verification fails"
+assert_file_has_content show-not-signed.txt "no signatures in static-delta"
+
+echo 'ok verify ok with unsigned deltas'
+
+rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
+${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --sign-type=dummy --sign=dummysign
+${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-dummy-signed.txt
+assert_file_has_content show-dummy-signed.txt "Verification OK"
+
+rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
+${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline --sign-type=dummy --sign=dummysign
+${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} dummysign > show-dummy-inline-signed.txt
+assert_file_has_content show-dummy-inline-signed.txt "Verification OK"
+
+echo 'ok verified with dummy'
+
+rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
+${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --sign-type=dummy --sign=dummysign
+${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} badsign > show-dummy-bad-signed.txt && exit 1
+assert_file_has_content show-dummy-bad-signed.txt "Verification fails"
+
+rm -rf repo/deltas/${deltaprefix}/${deltadir}/*
+${CMD_PREFIX} ostree --repo=repo static-delta generate --from=${origrev} --to=${newrev} --inline --sign-type=dummy --sign=dummysign
+${CMD_PREFIX} ostree --repo=repo static-delta verify --sign-type=dummy ${origrev}-${newrev} badsign > show-dummy-bad-inline-signed.txt && exit 1
+assert_file_has_content show-dummy-bad-inline-signed.txt "Verification fails"
+
+echo 'ok verification failed with dummy and bad key'