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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 lxml import etree
import grp
import os
import pwd
import re
import subprocess
import pki
INSTANCE_BASE_DIR = '/var/lib/pki'
REGISTRY_DIR = '/etc/sysconfig/pki'
SUBSYSTEM_TYPES = ['ca', 'kra', 'ocsp', 'tks', 'tps']
class PKISubsystem(object):
def __init__(self, instance, subsystem_name):
self.instance = instance
self.name = subsystem_name
self.type = instance.type
if self.type >= 10:
self.base_dir = os.path.join(self.instance.base_dir, self.name)
self.conf_dir = os.path.join(self.base_dir, 'conf')
else:
self.base_dir = instance.base_dir
self.conf_dir = os.path.join(self.base_dir, 'conf')
self.context_xml_template = os.path.join(
pki.SHARE_DIR, self.name, 'conf', 'Catalina', 'localhost', self.name + '.xml')
self.context_xml = os.path.join(
instance.conf_dir, 'Catalina', 'localhost', self.name + '.xml')
self.doc_base = os.path.join(self.base_dir, 'webapps', self.name)
def is_valid(self):
return os.path.exists(self.conf_dir)
def validate(self):
if not self.is_valid():
raise pki.PKIException(
'Invalid subsystem: ' + self.__repr__(),
None, self.instance)
def is_enabled(self):
return self.instance.is_deployed(self.name)
def enable(self):
self.instance.deploy(self.name, self.context_xml_template, self.doc_base)
def disable(self):
self.instance.undeploy(self.name)
def __repr__(self):
return str(self.instance) + '/' + self.name
class PKIInstance(object):
def __init__(self, name, instanceType=10):
self.name = name
self.type = instanceType
if self.type >= 10:
self.base_dir = os.path.join(INSTANCE_BASE_DIR, name)
self.conf_dir = os.path.join(self.base_dir, 'conf')
else:
self.base_dir = os.path.join(pki.BASE_DIR, name)
self.conf_dir = os.path.join(self.base_dir, 'conf')
self.registry_file = os.path.join(
pki.server.REGISTRY_DIR, 'tomcat', self.name, self.name)
self.service_name = 'pki-tomcatd@%s.service' % self.name
self.user = None
self.group = None
def is_valid(self):
return os.path.exists(self.conf_dir)
def validate(self):
if not self.is_valid():
raise pki.PKIException(
'Invalid instance: ' + self.__repr__(), None)
def start(self):
subprocess.check_call(['systemctl', 'start', self.service_name])
def stop(self):
subprocess.check_call(['systemctl', 'stop', self.service_name])
def is_active(self):
rc = subprocess.call(['systemctl', '--quiet', 'is-active', self.service_name])
return rc == 0
def load(self):
with open(self.registry_file, 'r') as registry:
lines = registry.readlines()
for line in lines:
m = re.search('^PKI_USER=(.*)$', line)
if m:
self.user = m.group(1)
m = re.search('^PKI_GROUP=(.*)$', line)
if m:
self.group = m.group(1)
def is_deployed(self, webapp_name):
context_xml = os.path.join(
self.conf_dir, 'Catalina', 'localhost', webapp_name + '.xml')
return os.path.exists(context_xml)
def deploy(self, webapp_name, descriptor, doc_base=None):
"""
Deploy a web application into a Tomcat instance.
This method will copy the specified deployment descriptor into
<instance>/conf/Catalina/localhost/<name>.xml and point the docBase
to the specified location. The web application will become available
under "/<name>" URL path.
See also: http://tomcat.apache.org/tomcat-7.0-doc/config/context.html
:param webapp_name: Web application name.
:type webapp_name: str
:param descriptor: Path to deployment descriptor (context.xml).
:type descriptor: str
:param doc_base: Path to web application content.
:type doc_base: str
"""
context_xml = os.path.join(
self.conf_dir, 'Catalina', 'localhost', webapp_name + '.xml')
# read deployment descriptor
parser = etree.XMLParser(remove_blank_text=True)
document = etree.parse(descriptor, parser)
if doc_base:
# customize docBase
context = document.getroot()
context.set('docBase', doc_base)
# write deployment descriptor
with open(context_xml, 'w') as f:
f.write(etree.tostring(document, pretty_print=True))
# find uid and gid
uid = pwd.getpwnam(self.user).pw_uid
gid = grp.getgrnam(self.group).gr_gid
# set deployment descriptor ownership and permission
os.chown(context_xml, uid, gid)
os.chmod(context_xml, 00660)
def undeploy(self, webapp_name):
context_xml = os.path.join(
self.conf_dir, 'Catalina', 'localhost', webapp_name + '.xml')
os.remove(context_xml)
def __repr__(self):
if self.type == 9:
return "Dogtag 9 " + self.name
return self.name
class PKIServerException(pki.PKIException):
def __init__(self, message, exception=None,
instance=None, subsystem=None):
pki.PKIException.__init__(self, message, exception)
self.instance = instance
self.subsystem = subsystem
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