In-application Keystone ticket promotion

chrome/browser/cocoa/keystone_promote_preflight.sh

+#!/bin/bash -p
+
+# Copyright (c) 2009 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Called as root before Keystone ticket promotion to ensure a suitable
+# environment for Keystone installation.  Ultimately, these features should be
+# integrated directly into the Keystone installation.
+#
+# Note that this script will be invoked with the real user ID set to the
+# user's ID, but the effective user ID set to 0 (root).  bash -p is used on
+# the first line to prevent bash from setting the effective user ID to the
+# real user ID (dropping root privileges).
+#
+# TODO(mark): Remove this script when able.  See http://b/2285921 and
+# http://b/2289908.
+
+set -e
+
+# This script runs as root, so be paranoid about things like ${PATH}.
+export PATH="/usr/bin:/usr/sbin:/bin:/sbin"
+
+# Output the pid to stdout before doing anything else.  See
+# chrome/browser/cocoa/authorization_util.h.
+echo "${$}"
+
+if [ ${#} -ne 0 ] ; then
+  echo "usage: ${0}" >& 2
+  exit 2
+fi
+
+OWNER_GROUP="root:admin"
+CHMOD_MODE="a+rX,u+w,go-w"
+
+LIB_GOOG="/Library/Google"
+if [ -d "${LIB_GOOG}" ] ; then
+  # Just work with the directory.  Don't do anything recursively here, so as
+  # to leave other things in /Library/Google alone.
+  chown -h "${OWNER_GROUP}" "${LIB_GOOG}" >& /dev/null
+  chmod -h "${CHMOD_MODE}" "${LIB_GOOG}" >& /dev/null
+
+  LIB_GOOG_GSU="${LIB_GOOG}/GoogleSoftwareUpdate"
+  if [ -d "${LIB_GOOG_GSU}" ] ; then
+    chown -Rh "${OWNER_GROUP}" "${LIB_GOOG_GSU}" >& /dev/null
+    chmod -R "${CHMOD_MODE}" "${LIB_GOOG_GSU}" >& /dev/null
+
+    # On the Mac, or at least on HFS+, symbolic link permissions are
+    # significant, but chmod -R and -h can't be used together.  Do another
+    # pass to fix the permissions on any symbolic links.
+    find "${LIB_GOOG_GSU}" -type l -exec chmod -h "${CHMOD_MODE}" {} + >& \
+        /dev/null
+
+    # TODO(mark): If GoogleSoftwareUpdate.bundle is missing, dump TicketStore
+    # too?
+  fi
+fi
+
+exit 0