Generate testing certs on the fly

src/scripts/mod_for_test_scripts/710enableAuthTesting

 #!/bin/bash
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 echo "Adding mock Google Accounts server certs."
 
-# TODO(cmasone): Generate certs/keys on the fly from a CSR?
-CERT_DIR="${GCLIENT_ROOT}/src/platform/login_manager"
 CERT_NAME="mock_server"
 FAKE_CA_DIR="${ROOT_FS_DIR}/etc/fake_root_ca"
 FAKE_NSSDB="${FAKE_CA_DIR}/nssdb"
+TMP_KEY=$(mktemp -p /tmp "${CERT_NAME}.key.XXXXX")
+TMP_CERT=$(mktemp -p /tmp "${CERT_NAME}.pem.XXXXX")
 
-mkdir -p "${FAKE_NSSDB}"
-cat "${CERT_DIR}/${CERT_NAME}.key" > "${FAKE_CA_DIR}/${CERT_NAME}.key"
+# Generate testing root cert on the fly.
+openssl req -x509 -nodes -days 365 \
+  -subj "/CN=*.google.com" \
+  -newkey rsa:1024 -keyout "${TMP_KEY}" -out "${TMP_CERT}"
+
+mkdir -m 0755 -p "${FAKE_NSSDB}"
+cp "${TMP_KEY}" "${FAKE_CA_DIR}/${CERT_NAME}.key"
 echo "DO NOT MOVE THIS DATA OFF OF THE ROOTFS!" > "${FAKE_CA_DIR}/README"
-nsscertutil -A -n FakeCA -t "C,C,C" -a -i "${CERT_DIR}/${CERT_NAME}.pem" \
-  -d "${FAKE_NSSDB}"
-chmod -R 0644 "${FAKE_NSSDB}"
+nsscertutil -A -n FakeCA -t "C,C,C" -a -i "${TMP_CERT}" -d "${FAKE_NSSDB}"
+chmod 0644 "${FAKE_NSSDB}"/*
+cp "${TMP_CERT}" "${FAKE_CA_DIR}/${CERT_NAME}.pem"
 
 # TODO(cmasone): get rid of this once we're off pam_google for good.
 # Sadly, our fake cert HAS to be first in this file.
 TMPFILE=$(mktemp)
 CERT_FILE="${ROOT_FS_DIR}/etc/login_trust_root.pem"
 PERMS=$(stat --printf="%a" "${CERT_FILE}")
-cat "${CERT_DIR}/${CERT_NAME}.pem" "${CERT_FILE}" > "${TMPFILE}"
+cat "${TMP_CERT}" "${CERT_FILE}" > "${TMPFILE}"
 mv -f "${TMPFILE}" "${CERT_FILE}"
 chmod "${PERMS}" "${CERT_FILE}"