ruby.git - Ruby GIT repository

path: root/ext/tk/sample/tkextlib/tkHTML

diff options

Diffstat (limited to 'ext/tk/sample/tkextlib/tkHTML')

0 files changed, 0 insertions, 0 deletions

a id='n22' href='#n22'>22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079

# Authors: Simo Sorce <ssorce@redhat.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 socket
import getpass
import os
import re
import fileinput
import sys
import tempfile
import shutil
from ConfigParser import SafeConfigParser, NoOptionError
import traceback
import textwrap
from contextlib import contextmanager
import pwd
import grp

from dns import resolver, rdatatype
from dns.exception import DNSException
import ldap
from nss.error import NSPRError

from ipapython import ipautil, sysrestore, admintool, dogtag, version
from ipapython.admintool import ScriptError
from ipapython.ipa_log_manager import root_logger, log_mgr
from ipalib.util import validate_hostname
from ipapython import config
from ipalib import errors, x509
from ipapython.dn import DN
from ipaserver.install import certs, service
from ipaplatform import services
from ipaplatform.paths import paths

# Used to determine install status
IPA_MODULES = [
    'httpd', 'kadmin', 'dirsrv', 'pki-cad', 'pki-tomcatd', 'install',
    'krb5kdc', 'ntpd', 'named', 'ipa_memcached']


class BadHostError(Exception):
    pass

class HostLookupError(BadHostError):
    pass

class HostForwardLookupError(HostLookupError):
    pass

class HostReverseLookupError(HostLookupError):
    pass

class HostnameLocalhost(HostLookupError):
    pass

class ReplicaConfig:
    def __init__(self, top_dir=None):
        self.realm_name = ""
        self.domain_name = ""
        self.master_host_name = ""
        self.dirman_password = ""
        self.host_name = ""
        self.dir = ""
        self.subject_base = None
        self.setup_ca = False
        self.version = 0
        self.top_dir = top_dir

    subject_base = ipautil.dn_attribute_property('_subject_base')

log = log_mgr.get_logger(__name__)

def get_fqdn():
    fqdn = ""
    try:
        fqdn = socket.getfqdn()
    except:
        try:
            fqdn = socket.gethostname()
        except:
            fqdn = ""
    return fqdn

def verify_fqdn(host_name, no_host_dns=False, local_hostname=True):
    """
    Run fqdn checks for given host:
        - test hostname format
        - test that hostname is fully qualified
        - test forward and reverse hostname DNS lookup

    Raises `BadHostError` or derived Exceptions if there is an error

    :param host_name: The host name to verify.
    :param no_host_dns: If true, skip DNS resolution tests of the host name.
    :param local_hostname: If true, run additional checks for local hostnames
    """
    if len(host_name.split(".")) < 2 or host_name == "localhost.localdomain":
        raise BadHostError("Invalid hostname '%s', must be fully-qualified." % host_name)

    if host_name != host_name.lower():
        raise BadHostError("Invalid hostname '%s', must be lower-case." % host_name)

    if ipautil.valid_ip(host_name):
        raise BadHostError("IP address not allowed as a hostname")

    try:
        # make sure that the host name meets the requirements in ipalib
        validate_hostname(host_name)
    except ValueError, e:
        raise BadHostError("Invalid hostname '%s', %s" % (host_name, unicode(e)))

    if local_hostname:
        try:
            root_logger.debug('Check if %s is a primary hostname for localhost', host_name)
            ex_name = socket.gethostbyaddr(host_name)
            root_logger.debug('Primary hostname for localhost: %s', ex_name[0])
            if host_name != ex_name[0]:
                raise HostLookupError("The host name %s does not match the primary host name %s. "\
                        "Please check /etc/hosts or DNS name resolution" % (host_name, ex_name[0]))
        except socket.gaierror:
            pass
        except socket.error, e:
            root_logger.debug('socket.gethostbyaddr() error: %d: %s' % (e.errno, e.strerror))

    if no_host_dns:
        print "Warning: skipping DNS resolution of host", host_name
        return

    try:
        root_logger.debug('Search DNS for %s', host_name)
        hostaddr = socket.getaddrinfo(host_name, None)
    except Exception, e:
        root_logger.debug('Search failed: %s', e)
        raise HostForwardLookupError("Unable to resolve host name, check /etc/hosts or DNS name resolution")

    if len(hostaddr) == 0:
        raise HostForwardLookupError("Unable to resolve host name, check /etc/hosts or DNS name resolution")

    # Verify this is NOT a CNAME
    try:
        root_logger.debug('Check if %s is not a CNAME', host_name)
        resolver.query(host_name, rdatatype.CNAME)
        raise HostReverseLookupError("The IPA Server Hostname cannot be a CNAME, only A and AAAA names are allowed.")
    except DNSException:
        pass

    # list of verified addresses to prevent multiple searches for the same address
    verified = set()
    for a in hostaddr:
        address = a[4][0]
        if address in verified:
            continue
        if address == '127.0.0.1' or address == '::1':
            raise HostForwardLookupError("The IPA Server hostname must not resolve to localhost (%s). A routable IP address must be used. Check /etc/hosts to see if %s is an alias for %s" % (address, host_name, address))
        try:
            root_logger.debug('Check reverse address of %s', address)
            revname = socket.gethostbyaddr(address)[0]
        except Exception, e:
            root_logger.debug('Check failed: %s', e)
            raise HostReverseLookupError("Unable to resolve the reverse ip address, check /etc/hosts or DNS name resolution")
        root_logger.debug('Found reverse name: %s', revname)
        if revname != host_name:
            raise HostReverseLookupError("The host name %s does not match the reverse lookup %s" % (host_name, revname))
        verified.add(address)

def record_in_hosts(ip, host_name=None, conf_file=paths.HOSTS):
    """
    Search record in /etc/hosts - static table lookup for hostnames

    In case of match, returns a tuple of ip address and a list of
    hostname aliases
    When no record is matched, None is returned

    :param ip: IP address
    :param host_name: Optional hostname to search
    :param conf_file: Optional path to the lookup table
    """
    hosts = open(conf_file, 'r').readlines()
    for line in hosts:
        line = line.rstrip('\n')
        fields = line.partition('#')[0].split()
        if len(fields) == 0:
            continue

        try:
            hosts_ip = fields[0]
            names = fields[1:]

            if hosts_ip != ip:
                continue
            if host_name is not None:
                if host_name in names:
                    return (hosts_ip, names)
                else:
                    return None
            return (hosts_ip, names)
        except IndexError:
            print "Warning: Erroneous line '%s' in %s" % (line, conf_file)
            continue

    return None

def add_record_to_hosts(ip, host_name, conf_file=paths.HOSTS):
    hosts_fd = open(conf_file, 'r+')
    hosts_fd.seek(0, 2)
    hosts_fd.write(ip+'\t'+host_name+' '+host_name.split('.')[0]+'\n')
    hosts_fd.close()

# TODO: Remove when removing usage from ipa-adtrust-install
def read_ip_address(host_name, fstore):
    while True:
        ip = ipautil.user_input("Please provide the IP address to be used for this host name", allow_empty = False)
        try:
            ip_parsed = ipautil.CheckedIPAddress(ip, match_local=True)
        except Exception, e:
            print "Error: Invalid IP Address %s: %s" % (ip, e)
            continue
        else:
            break

    return ip_parsed

def read_ip_addresses(host_name, fstore):
    ips = []
    print "Enter the IP address to use, or press Enter to finish."
    while True:
        ip = ipautil.user_input("Please provide the IP address to be used for this host name", allow_empty = True)
        if not ip:
            break
        try:
            ip_parsed = ipautil.CheckedIPAddress(ip, match_local=True)
        except Exception, e:
            print "Error: Invalid IP Address %s: %s" % (ip, e)
            continue
        ips.append(ip)

    return ips

def read_dns_forwarders():
    addrs = []
    if ipautil.user_input("Do you want to configure DNS forwarders?", True):
        print "Enter the IP address of DNS forwarder to use, or press Enter to finish."

        while True:
            ip = ipautil.user_input("Enter IP address for a DNS forwarder",
                                    allow_empty=True)
            if not ip:
                break
            try:
                ip_parsed = ipautil.CheckedIPAddress(ip, parse_netmask=False)
            except Exception, e:
                print "Error: Invalid IP Address %s: %s" % (ip, e)
                print "DNS forwarder %s not added" % ip
                continue

            print "DNS forwarder %s added" % ip
            addrs.append(str(ip_parsed))

    if not addrs:
        print "No DNS forwarders configured"

    return addrs

def get_password(prompt):
    if os.isatty(sys.stdin.fileno()):
        return getpass.getpass(prompt)
    else:
        sys.stdout.write(prompt)
        sys.stdout.flush()
        line = sys.stdin.readline()
        if not line:
            raise EOFError()
        return line.rstrip()


def _read_password_default_validator(password):
    if len(password) < 8:
        raise ValueError("Password must be at least 8 characters long")

def read_password(user, confirm=True, validate=True, retry=True, validator=_read_password_default_validator):
    correct = False
    pwd = None
    try:
        while not correct:
            if not retry:
                correct = True
            pwd = get_password(user + " password: ")
            if not pwd:
                continue
            if validate:
                try:
                    validator(pwd)
                except ValueError, e:
                    print str(e)
                    pwd = None
                    continue
            if not confirm:
                correct = True
                continue
            pwd_confirm = get_password("Password (confirm): ")
            if pwd != pwd_confirm:
                print "Password mismatch!"
                print ""
                pwd = None
            else:
                correct = True
    except EOFError:
        return None
    finally:
        print ""
    return pwd

def update_file(filename, orig, subst):
    if os.path.exists(filename):
        st = os.stat(filename)
        pattern = "%s" % re.escape(orig)
        p = re.compile(pattern)
        for line in fileinput.input(filename, inplace=1):
            if not p.search(line):
                sys.stdout.write(line)
            else:
                sys.stdout.write(p.sub(subst, line))
        fileinput.close()
        os.chown(filename, st.st_uid, st.st_gid) # reset perms
        return 0
    else:
        print "File %s doesn't exist." % filename
        return 1

def set_directive(filename, directive, value, quotes=True, separator=' '):
    """Set a name/value pair directive in a configuration file.

       A value of None means to drop the directive.

       This has only been tested with nss.conf
    """
    valueset = False
    st = os.stat(filename)
    fd = open(filename)
    newfile = []
    for line in fd:
        if line.lstrip().startswith(directive):
            valueset = True
            if value is not None:
                if quotes:
                    newfile.append('%s%s"%s"\n' % (directive, separator, value))
                else:
                    newfile.append('%s%s%s\n' % (directive, separator, value))
        else:
            newfile.append(line)
    fd.close()
    if not valueset:
        if value is not None:
            if quotes:
                newfile.append('%s%s"%s"\n' % (directive, separator, value))
            else:
                newfile.append('%s%s%s\n' % (directive, separator, value))

    fd = open(filename, "w")
    fd.write("".join(newfile))
    fd.close()
    os.chown(filename, st.st_uid, st.st_gid) # reset perms

def get_directive(filename, directive, separator=' '):
    """
    A rather inefficient way to get a configuration directive.
    """
    fd = open(filename, "r")
    for line in fd:
        if line.lstrip().startswith(directive):
            line = line.strip()
            result = line.split(separator, 1)[1]
            result = result.strip('"')
            result = result.strip(' ')
            fd.close()
            return result
    fd.close()
    return None

def kadmin(command):
    ipautil.run(["kadmin.local", "-q", command,
                                 "-x", "ipa-setup-override-restrictions"])

def kadmin_addprinc(principal):
    kadmin("addprinc -randkey " + principal)

def kadmin_modprinc(principal, options):
    kadmin("modprinc " + options + " " + principal)

def create_keytab(path, principal):
    try:
        if ipautil.file_exists(path):
            os.remove(path)
    except os.error:
        root_logger.critical("Failed to remove %s." % path)

    kadmin("ktadd -k " + path + " " + principal)

def resolve_host(host_name):
    try:
        addrinfos = socket.getaddrinfo(host_name, None,
                                       socket.AF_UNSPEC, socket.SOCK_STREAM)

        ip_list = []

        for ai in addrinfos:
            ip = ai[4][0]
            if ip == "127.0.0.1" or ip == "::1":
                raise HostnameLocalhost("The hostname resolves to the localhost address")

            ip_list.append(ip)

        return ip_list
    except socket.error:
        return []

def get_host_name(no_host_dns):
    """
    Get the current FQDN from the socket and verify that it is valid.

    no_host_dns is a boolean that determines whether we enforce that the
    hostname is resolvable.

    Will raise a RuntimeError on error, returns hostname on success
    """
    hostname = get_fqdn()
    verify_fqdn(hostname, no_host_dns)
    return hostname

def get_server_ip_address(host_name, fstore, unattended, setup_dns, ip_addresses):
    # Check we have a public IP that is associated with the hostname
    try:
        hostaddr = resolve_host(host_name)
    except HostnameLocalhost:
        print >> sys.stderr, "The hostname resolves to the localhost address (127.0.0.1/::1)"
        print >> sys.stderr, "Please change your /etc/hosts file so that the hostname"
        print >> sys.stderr, "resolves to the ip address of your network interface."
        print >> sys.stderr, "The KDC service does not listen on localhost"
        print >> sys.stderr, ""
        print >> sys.stderr, "Please fix your /etc/hosts file and restart the setup program"
        sys.exit(1)

    ip_add_to_hosts = False

    ips = []
    if len(hostaddr):
        for ha in hostaddr:
            try:
                ips.append(ipautil.CheckedIPAddress(ha, match_local=True))
            except ValueError, e:
                root_logger.warning("Invalid IP address %s for %s: %s", ha, host_name, unicode(e))

    if not ips and not ip_addresses:
        if not unattended:
            ip_addresses = read_ip_addresses(host_name, fstore)

    if ip_addresses:
        if setup_dns:
            ips = ip_addresses
        else:
            # all specified addresses was resolved for this host
            if set(ip_addresses) <= set(ips):
                ips = ip_addresses
            else:
                print >>sys.stderr, "Error: the hostname resolves to IP address(es) that are different"
                print >>sys.stderr, "from those provided on the command line.  Please fix your DNS"
                print >>sys.stderr, "or /etc/hosts file and restart the installation."
                print >>sys.stderr, "Provided but not resolved address(es): %s" % \
                                    ", ".join(str(ip) for ip in (set(ip_addresses) - set(ips)))
                sys.exit(1)
        ip_add_to_hosts = True

    if not ips:
        print >> sys.stderr, "No usable IP address provided nor resolved."
        sys.exit(1)

    for ip_address in ips:
        # check /etc/hosts sanity, add a record when needed
        hosts_record = record_in_hosts(str(ip_address))

        if hosts_record is None:
            if ip_add_to_hosts:
                print "Adding ["+str(ip_address)+" "+host_name+"] to your /etc/hosts file"
                fstore.backup_file(paths.HOSTS)
                add_record_to_hosts(str(ip_address), host_name)
        else:
            primary_host = hosts_record[1][0]
            if primary_host != host_name:
                print >>sys.stderr, "Error: there is already a record in /etc/hosts for IP address %s:" \
                        % ip_address
                print >>sys.stderr, hosts_record[0], " ".join(hosts_record[1])
                print >>sys.stderr, "Chosen hostname %s does not match configured canonical hostname %s" \
                        % (host_name, primary_host)
                print >>sys.stderr, "Please fix your /etc/hosts file and restart the installation."
                sys.exit(1)

    return ips

def expand_replica_info(filename, password):
    """
    Decrypt and expand a replica installation file into a temporary
    location. The caller is responsible to remove this directory.
    """
    top_dir = tempfile.mkdtemp("ipa")
    tarfile = top_dir+"/files.tar"
    dir_path = top_dir + "/realm_info"
    ipautil.decrypt_file(filename, tarfile, password, top_dir)
    ipautil.run(["tar", "xf", tarfile, "-C", top_dir])
    os.remove(tarfile)

    return top_dir, dir_path

def read_replica_info(dir_path, rconfig):
    """
    Read the contents of a replica installation file.

    rconfig is a ReplicaConfig object
    """
    filename = dir_path + "/realm_info"
    fd = open(filename)
    config = SafeConfigParser()
    config.readfp(fd)

    rconfig.realm_name = config.get("realm", "realm_name")
    rconfig.master_host_name = config.get("realm", "master_host_name")
    rconfig.domain_name = config.get("realm", "domain_name")
    rconfig.host_name = config.get("realm", "destination_host")
    rconfig.subject_base = config.get("realm", "subject_base")
    try:
        rconfig.version = int(config.get("realm", "version"))
    except NoOptionError:
        pass

def read_replica_info_dogtag_port(config_dir):
    portfile = config_dir + "/dogtag_directory_port.txt"
    default_port = dogtag.Dogtag9Constants.DS_PORT
    if not ipautil.file_exists(portfile):
        dogtag_master_ds_port = default_port
    else:
        with open(portfile) as fd:
            try:
                dogtag_master_ds_port = int(fd.read())
            except (ValueError, IOError), e:
                root_logger.debug('Cannot parse dogtag DS port: %s', e)
                root_logger.debug('Default to %d', default_port)
                dogtag_master_ds_port = default_port

    return dogtag_master_ds_port

def read_replica_info_kra_enabled(config_dir):
    """
    Check the replica info to determine if a KRA has been installed
    on the master
    """
    default_file = config_dir + "/default.conf"
    if not ipautil.file_exists(default_file):
        return False
    else:
        with open(default_file) as fd:
            config = SafeConfigParser()
            config.readfp(fd)

            enable_kra = bool(config.get("global", "enable_kra"))
            return enable_kra


def create_replica_config(dirman_password, filename, options):
    top_dir = None
    try:
        top_dir, dir = expand_replica_info(filename, dirman_password)
    except Exception, e:
        root_logger.error("Failed to decrypt or open the replica file.")
        print "ERROR: Failed to decrypt or open the replica file."
        print "Verify you entered the correct Directory Manager password."
        sys.exit(1)
    config = ReplicaConfig(top_dir)
    read_replica_info(dir, config)
    root_logger.debug(
        'Installing replica file with version %d (0 means no version in prepared file).',
        config.version)
    if config.version and config.version > version.NUM_VERSION:
        root_logger.error(
            'A replica file from a newer release (%d) cannot be installed on an older version (%d)',
            config.version, version.NUM_VERSION)
        sys.exit(1)
    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?", False):
                root_logger.debug(
                    "Replica was created for %s but machine is named %s  "
                    "User chose to exit",
                    config.host_name, host)
                sys.exit(0)
            config.host_name = host
            print ""
        except KeyboardInterrupt:
            root_logger.debug("Keyboard Interrupt")
            sys.exit(0)
    config.dir = dir
    config.ca_ds_port = read_replica_info_dogtag_port(config.dir)
    return config


def check_server_configuration():
    """
    Check if IPA server is configured on the system.

    This is done by checking if there are system restore (uninstall) files
    present on the system. Note that this check can only be run with root
    privileges.

    When IPA is not configured, this function raises a RuntimeError exception.
    Most convenient use case for the function is in install tools that require
    configured IPA for its function.
    """
    server_fstore = sysrestore.FileStore(paths.SYSRESTORE)
    if not server_fstore.has_files():
        raise RuntimeError("IPA is not configured on this system.")


def remove_file(filename):
    """
    Remove a file and log any exceptions raised.
    """
    try:
        if os.path.exists(filename):
            os.unlink(filename)
    except Exception, e:
        root_logger.error('Error removing %s: %s' % (filename, str(e)))


def rmtree(path):
    """
    Remove a directory structure and log any exceptions raised.
    """
    try:
        if os.path.exists(path):
            shutil.rmtree(path)
    except Exception, e:
        root_logger.error('Error removing %s: %s' % (path, str(e)))


def is_ipa_configured():
    """
    Using the state and index install files determine if IPA is already
    configured.
    """
    installed = False

    sstore = sysrestore.StateFile(paths.SYSRESTORE)
    fstore = sysrestore.FileStore(paths.SYSRESTORE)

    for module in IPA_MODULES:
        if sstore.has_state(module):
            root_logger.debug('%s is configured' % module)
            installed = True
        else:
            root_logger.debug('%s is not configured' % module)

    if fstore.has_files():
        root_logger.debug('filestore has files')
        installed = True
    else:
        root_logger.debug('filestore is tracking no files')

    return installed


def run_script(main_function, operation_name, log_file_name=None,
        fail_message=None):
    """Run the given function as a command-line utility

    This function:

    - Runs the given function
    - Formats any errors
    - Exits with the appropriate code

    :param main_function: Function to call
    :param log_file_name: Name of the log file (displayed on unexpected errors)
    :param operation_name: Name of the script
    :param fail_message: Optional message displayed on failure
    """

    root_logger.info('Starting script: %s', operation_name)
    try:
        try:
            return_value = main_function()
        except BaseException, e:
            if isinstance(e, SystemExit) and (e.code is None or e.code == 0):
                # Not an error after all
                root_logger.info('The %s command was successful',
                    operation_name)
            else:
                # Log at the DEBUG level, which is not output to the console
                # (unless in debug/verbose mode), but is written to a logfile
                # if one is open.
                tb = sys.exc_info()[2]
                root_logger.debug('\n'.join(traceback.format_tb(tb)))
                root_logger.debug('The %s command failed, exception: %s: %s',
                                  operation_name, type(e).__name__, e)
                if fail_message and not isinstance(e, SystemExit):
                    print fail_message
                raise
        else:
            if return_value:
                root_logger.info('The %s command failed, return value %s',
                    operation_name, return_value)
            else:
                root_logger.info('The %s command was successful',
                    operation_name)
            sys.exit(return_value)

    except BaseException, error:
        message, exitcode = handle_error(error, log_file_name)
        if message:
            print >> sys.stderr, message
        sys.exit(exitcode)


def handle_error(error, log_file_name=None):
    """Handle specific errors. Returns a message and return code"""

    if isinstance(error, SystemExit):
        if isinstance(error.code, int):
            return None, error.code
        elif error.code is None:
            return None, 0
        else:
            return str(error), 1
    if isinstance(error, RuntimeError):
        return str(error), 1
    if isinstance(error, KeyboardInterrupt):
        return "Cancelled.", 1

    if isinstance(error, admintool.ScriptError):
        return error.msg, error.rval

    if isinstance(error, socket.error):
        return error, 1

    if isinstance(error, errors.ACIError):
        return error.message, 1
    if isinstance(error, ldap.INVALID_CREDENTIALS):
        return "Invalid password", 1
    if isinstance(error, ldap.INSUFFICIENT_ACCESS):
        return "Insufficient access", 1
    if isinstance(error, ldap.LOCAL_ERROR):
        return error.args[0]['info'], 1
    if isinstance(error, ldap.SERVER_DOWN):
        return error.args[0]['desc'], 1
    if isinstance(error, ldap.LDAPError):
        return 'LDAP error: %s\n%s' % (
            type(error).__name__, error.args[0]['info']), 1

    if isinstance(error, config.IPAConfigError):
        message = "An IPA server to update cannot be found. Has one been configured yet?"
        message += "\nThe error was: %s" % error
        return message, 1
    if isinstance(error, errors.LDAPError):
        return "An error occurred while performing operations: %s" % error, 1

    if isinstance(error, HostnameLocalhost):


context:
space:
mode: