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#!/usr/bin/python
# Authors:
# Endi S. Dewata <edewata@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright (C) 2013 Red Hat, Inc.
# All rights reserved.
#
from __future__ import absolute_import
import os
import shutil
from lxml import etree
import pki
import pki.server.upgrade
class ReplaceRandomNumberGenerator(pki.server.upgrade.PKIServerUpgradeScriptlet):
def __init__(self):
super(ReplaceRandomNumberGenerator, self).__init__()
self.message = 'Replace random number generator'
self.context_xml = '/usr/share/pki/%s/webapps/%s/META-INF/context.xml'
self.parser = etree.XMLParser(remove_blank_text=True)
def upgrade_subsystem(self, instance, subsystem):
meta_inf = os.path.join(instance.base_dir, 'webapps', subsystem.name, 'META-INF')
self.backup(meta_inf)
self.create_meta_inf(instance, meta_inf)
context_xml = os.path.join(meta_inf, 'context.xml')
self.backup(context_xml)
self.create_context_xml(
instance,
self.context_xml % (subsystem.name, subsystem.name),
context_xml)
document = etree.parse(context_xml, self.parser)
self.add_manager(document)
if subsystem.type >=10:
self.update_authenticator(document)
else:
self.remove_authenticator(document)
self.remove_realm(document)
with open(context_xml, 'w') as f:
f.write(etree.tostring(document, pretty_print=True))
def upgrade_instance(self, instance):
self.update_root_context_xml(instance)
self.update_pki_context_xml(instance)
def update_root_context_xml(self, instance):
meta_inf = os.path.join(instance.base_dir, 'webapps', 'ROOT', 'META-INF')
self.backup(meta_inf)
self.create_meta_inf(instance, meta_inf)
context_xml = os.path.join(meta_inf, 'context.xml')
self.backup(context_xml)
self.create_context_xml(
instance,
self.context_xml % ('server', 'ROOT'),
context_xml)
document = etree.parse(context_xml, self.parser)
self.add_manager(document)
with open(context_xml, 'w') as f:
f.write(etree.tostring(document, pretty_print=True))
def update_pki_context_xml(self, instance):
meta_inf = os.path.join(instance.base_dir, 'webapps', 'pki', 'META-INF')
self.backup(meta_inf)
self.create_meta_inf(instance, meta_inf)
context_xml = os.path.join(meta_inf, 'context.xml')
self.backup(context_xml)
self.create_context_xml(
instance,
self.context_xml % ('server', 'pki'),
context_xml)
document = etree.parse(context_xml, self.parser)
self.add_manager(document)
with open(context_xml, 'w') as f:
f.write(etree.tostring(document, pretty_print=True))
def create_meta_inf(self, instance, path):
if not os.path.exists(path):
os.mkdir(path)
os.chown(path, instance.uid, instance.gid)
os.chmod(path, 0770)
def create_context_xml(self, instance, source, target):
if not os.path.exists(target):
shutil.copyfile(source, target)
os.chown(target, instance.uid, instance.gid)
os.chmod(target, 0660)
def add_manager(self, document):
# Find existing manager
context = document.getroot()
manager = context.find('Manager')
if manager is None:
# Create new manager
manager = etree.SubElement(context, 'Manager')
# Update manager's attributes
manager.set('secureRandomProvider', 'Mozilla-JSS')
manager.set('secureRandomAlgorithm', 'pkcs11prng')
def update_authenticator(self, document):
context = document.getroot()
valves = context.findall('Valve')
authenticator = None
# Find existing authenticator
for valve in valves:
className = valve.get('className')
if className != 'com.netscape.cms.tomcat.SSLAuthenticatorWithFallback':
continue
# Found existing authenticator
authenticator = valve
break
if authenticator is None:
# Create new authenticator'
authenticator = etree.SubElement(authenticator, 'Valve')
authenticator.set('className',
'com.netscape.cms.tomcat.SSLAuthenticatorWithFallback')
# Update authenticator's attributes
authenticator.set('secureRandomProvider', 'Mozilla-JSS')
authenticator.set('secureRandomAlgorithm', 'pkcs11prng')
def remove_authenticator(self, document):
context = document.getroot()
valves = context.findall('Valve')
for valve in valves:
className = valve.get('className')
if className != 'com.netscape.cms.tomcat.SSLAuthenticatorWithFallback':
continue
context.remove(valve)
def remove_realm(self, document):
context = document.getroot()
realms = context.findall('Realm')
for realm in realms:
className = realm.get('className')
if className != 'com.netscape.cms.tomcat.ProxyRealm':
continue
context.remove(realm)
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