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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2006-07-17 15:03:12 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2006-07-17 15:03:12 +0000
commit132168780b146409f4a3e89b9b5f5702bf10e8e2 (patch)
treecaebad2c95270e12e6942cf1f456daf9dd79c619 /x68/select.c
parent2ccebae2f942692529a8e2e30ba34c65f41da862 (diff)
2006-07-18
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@10548 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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#! /usr/bin/python -E
# Authors: Karl MacMillan <kmacmillan@mentalrootkit.com>
#
# Copyright (C) 2007  Red Hat
# see file 'COPYING' for use and warranty information
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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, see <http://www.gnu.org/licenses/>.
#

import sys
import socket

import os, pwd, traceback, shutil
import grp
from optparse import OptionGroup

from ipapython import ipautil

from ipaserver.install import dsinstance, installutils, krbinstance, service
from ipaserver.install import bindinstance, httpinstance, ntpinstance, certs
from ipaserver.install import memcacheinstance
from ipaserver.install.replication import replica_conn_check
from ipaserver.install.installutils import HostnameLocalhost, resolve_host
from ipaserver.install.installutils import ReplicaConfig, expand_replica_info, read_replica_info
from ipaserver.install.installutils import get_host_name, BadHostError
from ipaserver.plugins.ldap2 import ldap2
from ipaserver.install import cainstance
from ipapython import version
from ipalib import api, errors, util
from ipapython.config import IPAOptionParser
from ipapython import sysrestore
from ipapython import services as ipaservices
from ipapython.ipa_log_manager import *

CACERT="/etc/ipa/ca.crt"
REPLICA_INFO_TOP_DIR=None

def parse_options():
    usage = "%prog [options] REPLICA_FILE"
    parser = IPAOptionParser(usage=usage, version=version.VERSION)

    basic_group = OptionGroup(parser, "basic options")
    basic_group.add_option("--setup-ca", dest="setup_ca", action="store_true",
                      default=False, help="configure a dogtag CA")
    basic_group.add_option("--ip-address", dest="ip_address",
                      type="ip", ip_local=True,
                      help="Replica server IP Address")
    basic_group.add_option("-p", "--password", dest="password", sensitive=True,
                      help="Directory Manager (existing master) password")
    basic_group.add_option("-w", "--admin-password", dest="admin_password", sensitive=True,
                      help="Admin user Kerberos password used for connection check")
    basic_group.add_option("-N", "--no-ntp", dest="conf_ntp", action="store_false",
                      help="do not configure ntp", default=True)
    basic_group.add_option("--no-ui-redirect", dest="ui_redirect", action="store_false",
                      default=True, help="Do not automatically redirect to the Web UI")
    basic_group.add_option("--ssh-trust-dns", dest="trust_sshfp", default=False, action="store_true",
                      help="configure OpenSSH client to trust DNS SSHFP records")
    basic_group.add_option("--no-sshd", dest="conf_sshd", default=True, action="store_false",
                      help="do not configure OpenSSH server")
    basic_group.add_option("--skip-conncheck", dest="skip_conncheck", action="store_true",
                      default=False, help="skip connection check to remote master")
    basic_group.add_option("-d", "--debug", dest="debug", action="store_true",
                      default=False, help="gather extra debugging information")
    basic_group.add_option("-U", "--unattended", dest="unattended", action="store_true",
                      default=False, help="unattended installation never prompts the user")
    parser.add_option_group(basic_group)

    cert_group = OptionGroup(parser, "certificate system options")
    cert_group.add_option("--no-pkinit", dest="setup_pkinit", action="store_false",
                      default=True, help="disables pkinit setup steps")
    parser.add_option_group(cert_group)

    dns_group = OptionGroup(parser, "DNS options")
    dns_group.add_option("--setup-dns", dest="setup_dns", action="store_true",
                      default=False, help="configure bind with our zone")
    dns_group.add_option("--forwarder", dest="forwarders", action="append",
                      type="ip", help="Add a DNS forwarder")
    dns_group.add_option("--no-forwarders", dest="no_forwarders", action="store_true",
                      default=False, help="Do not add any DNS forwarders, use root servers instead")
    dns_group.add_option("--reverse-zone", dest="reverse_zone", help="The reverse DNS zone to use")
    dns_group.add_option("--no-reverse", dest="no_reverse", action="store_true",
                      default=False, help="Do not create new reverse DNS zone")
    dns_group.add_option("--no-host-dns", dest="no_host_dns", action="store_true",
                      default=False,
                      help="Do not use DNS for hostname lookup during installation")
    dns_group.add_option("--no-dns-sshfp", dest="create_sshfp", default=True, action="store_false",
                      help="do not automatically create DNS SSHFP records")
    parser.add_option_group(dns_group)

    options, args = parser.parse_args()
    safe_options = parser.get_safe_opts(options)

    if len(args) != 1:
        parser.error("you must provide a file generated by ipa-replica-prepare")

    if not options.setup_dns:
        if options.forwarders:
            parser.error("You cannot specify a --forwarder option without the --setup-dns option")
        if options.no_forwarders:
            parser.error("You cannot specify a --no-forwarders option without the --setup-dns option")
        if options.reverse_zone:
            parser.error("You cannot specify a --reverse-zone option without the --setup-dns option")
        if options.no_reverse:
            parser.error("You cannot specify a --no-reverse option without the --setup-dns option")
    elif options.forwarders and options.no_forwarders:
        parser.error("You cannot specify a --forwarder option together with --no-forwarders")
    elif not options.forwarders and not options.no_forwarders:
        parser.error("You must specify at least one --forwarder option or --no-forwarders option")
    elif options.reverse_zone and options.no_reverse:
        parser.error("You cannot specify a --reverse-zone option together with --no-reverse")

    return safe_options, options, args[0]

def get_dirman_password():
    return installutils.read_password("Directory Manager (existing master)", confirm=False, validate=False)

def set_owner(config, dir):
    pw = pwd.getpwnam(dsinstance.DS_USER)
    os.chown(dir, pw.pw_uid, pw.pw_gid)

def install_replica_ds(config):
    dsinstance.check_ports()

    # if we have a pkcs12 file, create the cert db from
    # that. Otherwise the ds setup will create the CA
    # cert
    pkcs12_info = None
    if ipautil.file_exists(config.dir + "/dscert.p12"):
        pkcs12_info = (config.dir + "/dscert.p12",
                       config.dir + "/dirsrv_pin.txt")

    ds = dsinstance.DsInstance()
    ds.create_replica(config.realm_name,
                      config.master_host_name, config.host_name,
                      config.domain_name, config.dirman_password,
                      pkcs12_info)

    return ds

def install_krb(config, setup_pkinit=False):
    krb = krbinstance.KrbInstance()

    #pkinit files
    pkcs12_info = None
    if ipautil.file_exists(config.dir + "/pkinitcert.p12"):
        pkcs12_info = (config.dir + "/pkinitcert.p12",
                       config.dir + "/pkinit_pin.txt")

    krb.create_replica(config.realm_name,
                       config.master_host_name, config.host_name,
                       config.domain_name, config.dirman_password,
                       setup_pkinit, pkcs12_info)

    return krb

def install_ca_cert(config):
    cafile = config.dir + "/ca.crt"
    if not ipautil.file_exists(cafile):
        raise RuntimeError("Ca cert file is not available")

    try:
        shutil.copy(cafile, CACERT)
        os.chmod(CACERT, 0444)
    except Exception, e:
        print "error copying files: " + str(e)
        sys.exit(1)

def install_http(config, auto_redirect):
    # if we have a pkcs12 file, create the cert db from
    # that. Otherwise the ds setup will create the CA
    # cert
    pkcs12_info = None
    if ipautil.file_exists(config.dir + "/httpcert.p12"):
        pkcs12_info = (config.dir + "/httpcert.p12",
                       config.dir + "/http_pin.txt")

    memcache = memcacheinstance.MemcacheInstance()
    memcache.create_instance('MEMCACHE', config.host_name, config.dirman_password, util.realm_to_suffix(config.realm_name))

    http = httpinstance.HTTPInstance()
    http.create_instance(config.realm_name, config.host_name, config.domain_name, config.dirman_password, False, pkcs12_info, self_signed_ca=True, auto_redirect=auto_redirect)

    # Now copy the autoconfiguration files
    if ipautil.file_exists(config.dir + "/preferences.html"):
        try:
            shutil.copy(config.dir + "/preferences.html", "/usr/share/ipa/html/preferences.html")
            shutil.copy(config.dir + "/configure.jar", "/usr/share/ipa/html/configure.jar")
        except Exception, e:
            print "error copying files: " + str(e)
            sys.exit(1)

    return http

def install_bind(config, options):
    api.Backend.ldap2.connect(bind_dn="cn=Directory Manager",
                              bind_pw=config.dirman_password)
    if options.forwarders:
        forwarders = options.forwarders
    else:
        forwarders = ()
    bind = bindinstance.BindInstance(dm_password=config.dirman_password)

    if options.reverse_zone:
        if not bindinstance.verify_reverse_zone(options.reverse_zone, config.ip):
            sys.exit(1)
        reverse_zone = bindinstance.normalize_zone(options.reverse_zone)
    else:
        reverse_zone = bindinstance.find_reverse_zone(config.ip)
        if reverse_zone is None and not options.no_reverse:
            reverse_zone = bindinstance.get_reverse_zone_default(config.ip)
            if not options.unattended and bindinstance.create_reverse():
                reverse_zone = bindinstance.read_reverse_zone(reverse_zone, config.ip)

    if reverse_zone is not None:
        print "Using reverse zone %s" % reverse_zone

    bind.setup(config.host_name, config.ip_address, config.realm_name,
               config.domain_name, forwarders, options.conf_ntp, reverse_zone)
    bind.create_instance()

def install_dns_records(config, options):

    if not bindinstance.dns_container_exists(config.master_host_name,
                                             util.realm_to_suffix(config.realm_name),
                                             dm_password=config.dirman_password):
        return

    # We have to force to connect to the remote master because we do this step
    # before our DS server is installed.
    cur_uri = api.Backend.ldap2.ldap_uri
    object.__setattr__(api.Backend.ldap2, 'ldap_uri',
                       'ldaps://%s' % ipautil.format_netloc(config.master_host_name))
    api.Backend.ldap2.connect(bind_dn="cn=Directory Manager",
                              bind_pw=config.dirman_password,
                              tls_cacertfile=CACERT)
    bind = bindinstance.BindInstance(dm_password=config.dirman_password)
    reverse_zone = bindinstance.find_reverse_zone(config.ip)

    bind.add_master_dns_records(config.host_name, config.ip_address,
                                config.realm_name, config.domain_name,
                                reverse_zone, options.conf_ntp)

    #set it back to the default
    api.Backend.ldap2.disconnect()
    object.__setattr__(api.Backend.ldap2, 'ldap_uri', cur_uri)

def check_dirsrv():
    (ds_unsecure, ds_secure) = dsinstance.check_ports()
    if not ds_unsecure or not ds_secure:
        print "IPA requires ports 389 and 636 for the Directory Server."
        print "These are currently in use:"
        if not ds_unsecure:
            print "\t389"
        if not ds_secure:
            print "\t636"
        sys.exit(1)

def check_bind():
    if not bindinstance.check_inst(unattended=True):
        print "Aborting installation"
        sys.exit(1)

def main():
    safe_options, options, filename = parse_options()
    standard_logging_setup("/var/log/ipareplica-install.log", debug=options.debug)
    root_logger.debug('%s was invoked with argument "%s" and options: %s' % (sys.argv[0], filename, safe_options))

    if not ipautil.file_exists(filename):
        sys.exit("Replica file %s does not exist" % filename)

    client_fstore = sysrestore.FileStore('/var/lib/ipa-client/sysrestore')
    if client_fstore.has_files():
        sys.exit("IPA client is already configured on this system.\n"
                 + "Please uninstall it first before configuring the replica.")

    global sstore
    sstore = sysrestore.StateFile('/var/lib/ipa/sysrestore')

    global fstore
    fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore')

    # check the bind is installed
    if options.setup_dns:
        check_bind()

    check_dirsrv()

    # get the directory manager password
    dirman_password = options.password
    if not dirman_password:
        try:
            dirman_password = get_dirman_password()
        except KeyboardInterrupt:
            sys.exit(0)
        if dirman_password is None:
            sys.exit("\nDirectory Manager password required")

    try:
        top_dir, dir = expand_replica_info(filename, dirman_password)
        global REPLICA_INFO_TOP_DIR
        REPLICA_INFO_TOP_DIR = top_dir
    except Exception, e:
        print "ERROR: Failed to decrypt or open the replica file."
        print "Verify you entered the correct Directory Manager password."
        sys.exit(1)

    config = ReplicaConfig()
    read_replica_info(dir, config)
    config.dirman_password = dirman_password
    try:
        host = get_host_name(options.no_host_dns)
    except BadHostError, e:
        root_logger.error(str(e))
        sys.exit(1)
    if config.host_name != host:
        try:
            print "This replica was created for '%s' but this machine is named '%s'" % (config.host_name, host)
            if not ipautil.user_input("This may cause problems. Continue?", True):
                sys.exit(0)
            config.host_name = host
            print ""
        except KeyboardInterrupt:
            sys.exit(0)
    config.dir = dir
    config.setup_ca = options.setup_ca


    # check connection
    if not options.skip_conncheck:
        replica_conn_check(config.master_host_name, config.host_name, config.realm_name, options.setup_ca, options.admin_password)

    # check replica host IP resolution
    config.ip = installutils.get_server_ip_address(config.host_name, fstore, True, options)
    config.ip_address = str(config.ip)

    # Create the management framework config file
    # Note: We must do this before bootstraping and finalizing ipalib.api
    old_umask = os.umask(022)   # must be readable for httpd
    try:
        fd = open("/etc/ipa/default.conf", "w")
        fd.write("[global]\n")
        fd.write("host=" + config.host_name + "\n")
        fd.write("basedn=" + util.realm_to_suffix(config.realm_name) + "\n")
        fd.write("realm=" + config.realm_name + "\n")
        fd.write("domain=" + config.domain_name + "\n")
        fd.write("xmlrpc_uri=https://%s/ipa/xml\n" % ipautil.format_netloc(config.host_name))
        fd.write("ldap_uri=ldapi://%%2fvar%%2frun%%2fslapd-%s.socket\n" % dsinstance.realm_to_serverid(config.realm_name))
        if ipautil.file_exists(config.dir + "/cacert.p12"):
            fd.write("enable_ra=True\n")
            fd.write("ra_plugin=dogtag\n")
        fd.write("mode=production\n")
        fd.close()
    finally:
        os.umask(old_umask)

    api.bootstrap(in_server=True, context='installer')
    api.finalize()

    # Create DS group if it doesn't exist yet
    try:
        grp.getgrnam(dsinstance.DS_GROUP)
        root_logger.debug("ds group %s exists" % dsinstance.DS_GROUP)
        group_exists = True
    except KeyError:
        group_exists = False
        args = ["/usr/sbin/groupadd", "-r", dsinstance.DS_GROUP]
        try:
            ipautil.run(args)
            root_logger.debug("done adding DS group")
        except ipautil.CalledProcessError, e:
            root_logger.critical("failed to add DS group: %s" % e)
    sstore.backup_state("install", "group_exists", group_exists)

    #Automatically disable pkinit w/ dogtag until that is supported
    #[certs.ipa_self_signed() must be called only after api.finalize()]
    if not ipautil.file_exists(config.dir + "/pkinitcert.p12") and not certs.ipa_self_signed():
        options.setup_pkinit = False

    # Install CA cert so that we can do SSL connections with ldap
    install_ca_cert(config)

    # Try out the password