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2e8bae590e
We don't use certmonger to get certificates during installation because of the chicken-and-egg problem. This means that the IPA web and ldap certs aren't being tracked for renewal. This requires some manual changes to the certmonger request files once tracking has begun because it doesn't store a subject or principal template when a cert is added via start-tracking. This also required some changes to the cert command plugin to allow a host to execute calls against its own service certs. ticket 67
276 lines
11 KiB
Python
276 lines
11 KiB
Python
# Authors: Rob Crittenden <rcritten@redhat.com>
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#
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# Copyright (C) 2007 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; version 2 only
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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import os
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import os.path
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import tempfile
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import logging
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import pwd
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import shutil
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import service
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import certs
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import dsinstance
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import installutils
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from ipapython import sysrestore
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from ipapython import ipautil
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from ipalib import util
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HTTPD_DIR = "/etc/httpd"
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SSL_CONF = HTTPD_DIR + "/conf.d/ssl.conf"
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NSS_CONF = HTTPD_DIR + "/conf.d/nss.conf"
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NSS_DIR = HTTPD_DIR + "/alias"
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selinux_warning = """WARNING: could not set selinux boolean httpd_can_network_connect to true.
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The web interface may not function correctly until this boolean is
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successfully change with the command:
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/usr/sbin/setsebool -P httpd_can_network_connect true
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Try updating the policycoreutils and selinux-policy packages.
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"""
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class WebGuiInstance(service.SimpleServiceInstance):
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def __init__(self):
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service.SimpleServiceInstance.__init__(self, "ipa_webgui")
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class HTTPInstance(service.Service):
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def __init__(self, fstore = None):
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service.Service.__init__(self, "httpd")
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if fstore:
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self.fstore = fstore
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else:
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self.fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore')
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def create_instance(self, realm, fqdn, domain_name, dm_password=None, autoconfig=True, pkcs12_info=None, self_signed_ca=False, subject_base=None):
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self.fqdn = fqdn
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self.realm = realm
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self.domain = domain_name
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self.dm_password = dm_password
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self.suffix = util.realm_to_suffix(self.realm)
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self.pkcs12_info = pkcs12_info
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self.self_signed_ca = self_signed_ca
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self.principal = "HTTP/%s@%s" % (self.fqdn, self.realm)
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self.dercert = None
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self.subject_base = subject_base
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self.sub_dict = { "REALM" : realm, "FQDN": fqdn, "DOMAIN" : self.domain }
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self.step("disabling mod_ssl in httpd", self.__disable_mod_ssl)
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self.step("Setting mod_nss port to 443", self.__set_mod_nss_port)
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self.step("Setting mod_nss password file", self.__set_mod_nss_passwordfile)
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self.step("Adding URL rewriting rules", self.__add_include)
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self.step("configuring httpd", self.__configure_http)
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self.step("Setting up ssl", self.__setup_ssl)
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if autoconfig:
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self.step("Setting up browser autoconfig", self.__setup_autoconfig)
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self.step("publish CA cert", self.__publish_ca_cert)
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self.step("creating a keytab for httpd", self.__create_http_keytab)
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self.step("configuring SELinux for httpd", self.__selinux_config)
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self.step("restarting httpd", self.__start)
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self.step("configuring httpd to start on boot", self.__enable)
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self.start_creation("Configuring the web interface")
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def __start(self):
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self.backup_state("running", self.is_running())
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self.restart()
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def __enable(self):
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self.backup_state("enabled", self.is_running())
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self.chkconfig_on()
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def __selinux_config(self):
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selinux=0
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try:
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if (os.path.exists('/usr/sbin/selinuxenabled')):
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ipautil.run(["/usr/sbin/selinuxenabled"])
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selinux=1
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except ipautil.CalledProcessError:
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# selinuxenabled returns 1 if not enabled
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pass
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if selinux:
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try:
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# returns e.g. "httpd_can_network_connect --> off"
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(stdout, stderr, returncode) = ipautil.run(["/usr/sbin/getsebool",
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"httpd_can_network_connect"])
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self.backup_state("httpd_can_network_connect", stdout.split()[2])
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except:
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pass
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# Allow apache to connect to the turbogears web gui
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# This can still fail even if selinux is enabled
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try:
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ipautil.run(["/usr/sbin/setsebool", "-P", "httpd_can_network_connect", "true"])
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except:
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self.print_msg(selinux_warning)
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def __create_http_keytab(self):
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installutils.kadmin_addprinc(self.principal)
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installutils.create_keytab("/etc/httpd/conf/ipa.keytab", self.principal)
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self.move_service(self.principal)
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self.add_cert_to_service()
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pent = pwd.getpwnam("apache")
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os.chown("/etc/httpd/conf/ipa.keytab", pent.pw_uid, pent.pw_gid)
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def __configure_http(self):
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http_txt = ipautil.template_file(ipautil.SHARE_DIR + "ipa.conf", self.sub_dict)
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self.fstore.backup_file("/etc/httpd/conf.d/ipa.conf")
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http_fd = open("/etc/httpd/conf.d/ipa.conf", "w")
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http_fd.write(http_txt)
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http_fd.close()
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http_txt = ipautil.template_file(ipautil.SHARE_DIR + "ipa-rewrite.conf", self.sub_dict)
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self.fstore.backup_file("/etc/httpd/conf.d/ipa-rewrite.conf")
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http_fd = open("/etc/httpd/conf.d/ipa-rewrite.conf", "w")
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http_fd.write(http_txt)
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http_fd.close()
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def __disable_mod_ssl(self):
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if os.path.exists(SSL_CONF):
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self.fstore.backup_file(SSL_CONF)
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os.unlink(SSL_CONF)
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def __set_mod_nss_port(self):
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self.fstore.backup_file(NSS_CONF)
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if installutils.update_file(NSS_CONF, '8443', '443') != 0:
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print "Updating port in %s failed." % NSS_CONF
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def __set_mod_nss_nickname(self, nickname):
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installutils.set_directive(NSS_CONF, 'NSSNickname', nickname)
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def __set_mod_nss_passwordfile(self):
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installutils.set_directive(NSS_CONF, 'NSSPassPhraseDialog', 'file:/etc/httpd/conf/password.conf')
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def __add_include(self):
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"""This should run after __set_mod_nss_port so is already backed up"""
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if installutils.update_file(NSS_CONF, '</VirtualHost>', 'Include conf.d/ipa-rewrite.conf\n</VirtualHost>') != 0:
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print "Adding Include conf.d/ipa-rewrite to %s failed." % NSS_CONF
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def __setup_ssl(self):
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if self.self_signed_ca:
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ca_db = certs.CertDB(NSS_DIR, subject_base=self.subject_base)
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else:
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ca_db = certs.CertDB(NSS_DIR, host_name=self.fqdn, subject_base=self.subject_base)
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db = certs.CertDB(NSS_DIR, subject_base=self.subject_base)
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if self.pkcs12_info:
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db.create_from_pkcs12(self.pkcs12_info[0], self.pkcs12_info[1], passwd="")
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server_certs = db.find_server_certs()
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if len(server_certs) == 0:
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raise RuntimeError("Could not find a suitable server cert in import in %s" % self.pkcs12_info[0])
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db.create_password_conf()
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# We only handle one server cert
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nickname = server_certs[0][0]
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self.dercert = db.get_cert_from_db(nickname)
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self.__set_mod_nss_nickname(nickname)
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else:
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if self.self_signed_ca:
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db.create_from_cacert(ca_db.cacert_fname)
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db.create_password_conf()
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self.dercert = db.create_server_cert("Server-Cert", self.fqdn, ca_db)
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db.track_server_cert("Server-Cert", self.principal, db.passwd_fname)
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db.create_signing_cert("Signing-Cert", "Object Signing Cert", ca_db)
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else:
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self.dercert = db.create_server_cert("Server-Cert", self.fqdn, ca_db)
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db.track_server_cert("Server-Cert", self.principal, db.passwd_fname)
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db.create_signing_cert("Signing-Cert", "Object Signing Cert", ca_db)
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db.create_password_conf()
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# Fix the database permissions
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os.chmod(NSS_DIR + "/cert8.db", 0660)
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os.chmod(NSS_DIR + "/key3.db", 0660)
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os.chmod(NSS_DIR + "/secmod.db", 0660)
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os.chmod(NSS_DIR + "/pwdfile.txt", 0660)
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pent = pwd.getpwnam("apache")
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os.chown(NSS_DIR + "/cert8.db", 0, pent.pw_gid )
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os.chown(NSS_DIR + "/key3.db", 0, pent.pw_gid )
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os.chown(NSS_DIR + "/secmod.db", 0, pent.pw_gid )
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os.chown(NSS_DIR + "/pwdfile.txt", 0, pent.pw_gid )
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# Fix SELinux permissions on the database
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ipautil.run(["/sbin/restorecon", NSS_DIR + "/cert8.db"])
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ipautil.run(["/sbin/restorecon", NSS_DIR + "/key3.db"])
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# In case this got generated as part of the install, reset the
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# context
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if ipautil.file_exists(certs.CA_SERIALNO):
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ipautil.run(["/sbin/restorecon", certs.CA_SERIALNO])
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os.chown(certs.CA_SERIALNO, 0, pent.pw_gid)
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os.chmod(certs.CA_SERIALNO, 0664)
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def __setup_autoconfig(self):
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prefs_txt = ipautil.template_file(ipautil.SHARE_DIR + "preferences.html.template", self.sub_dict)
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prefs_fd = open("/usr/share/ipa/html/preferences.html", "w")
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prefs_fd.write(prefs_txt)
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prefs_fd.close()
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# The signing cert is generated in __setup_ssl
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db = certs.CertDB(NSS_DIR, subject_base=self.subject_base)
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pwdfile = open(db.passwd_fname)
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pwd = pwdfile.read()
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pwdfile.close()
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tmpdir = tempfile.mkdtemp(prefix = "tmp-")
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shutil.copy("/usr/share/ipa/html/preferences.html", tmpdir)
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db.run_signtool(["-k", "Signing-Cert",
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"-Z", "/usr/share/ipa/html/configure.jar",
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"-e", ".html", "-p", pwd,
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tmpdir])
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shutil.rmtree(tmpdir)
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def __publish_ca_cert(self):
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ca_db = certs.CertDB(NSS_DIR)
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shutil.copy(ca_db.cacert_fname, "/usr/share/ipa/html/ca.crt")
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os.chmod("/usr/share/ipa/html/ca.crt", 0444)
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def uninstall(self):
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if self.is_configured():
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self.print_msg("Unconfiguring web server")
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running = self.restore_state("running")
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enabled = self.restore_state("enabled")
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if not running is None:
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self.stop()
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db = certs.CertDB(NSS_DIR)
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db.untrack_server_cert("Server-Cert")
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if not enabled is None and not enabled:
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self.chkconfig_off()
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for f in ["/etc/httpd/conf.d/ipa.conf", SSL_CONF, NSS_CONF]:
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try:
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self.fstore.restore_file(f)
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except ValueError, error:
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logging.debug(error)
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pass
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sebool_state = self.restore_state("httpd_can_network_connect")
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if not sebool_state is None:
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try:
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ipautil.run(["/usr/sbin/setsebool", "-P", "httpd_can_network_connect", sebool_state])
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except:
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self.print_msg(selinux_warning)
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if not running is None and running:
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self.start()
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