# Authors: # Adam Young # Rob Crittenden # # Copyright (c) 2010 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 . """ Plugin to make multiple ipa calls via one remote procedure call To run this code in the lite-server curl -H "Content-Type:application/json" -H "Accept:application/json" -H "Accept-Language:en" --negotiate -u : --cacert /etc/ipa/ca.crt -d @batch_request.json -X POST http://localhost:8888/ipa/json where the contents of the file batch_request.json follow the below example {"method":"batch","params":[[ {"method":"group_find","params":[[],{}]}, {"method":"user_find","params":[[],{"whoami":"true","all":"true"}]}, {"method":"user_show","params":[["admin"],{"all":true}]} ],{}],"id":1} The format of the response is nested the same way. At the top you will see "error": null, "id": 1, "result": { "count": 3, "results": [ And then a nested response for each IPA command method sent in the request """ from ipalib import api, errors from ipalib import Command from ipalib.parameters import Str, Any from ipalib.output import Output from ipalib import output from ipalib.text import _ from ipalib.request import context from ipapython.version import API_VERSION class batch(Command): NO_CLI = True takes_args = ( Any('methods*', doc=_('Nested Methods to execute'), ), ) take_options = ( Str('version', cli_name='version', doc=_('Client version. Used to determine if server will accept request.'), exclude='webui', flags=['no_option', 'no_output'], default=API_VERSION, autofill=True, ), ) has_output = ( Output('count', int, doc=''), Output('results', list, doc='') ) def execute(self, *args, **options): results=[] for arg in args[0]: params = dict() name = None try: if 'method' not in arg: raise errors.RequirementError(name='method') if 'params' not in arg: raise errors.RequirementError(name='params') name = arg['method'] if name not in self.Command: raise errors.CommandError(name=name) a = arg['params'][0] kw = arg['params'][1] newkw = {} for k in kw: newkw[str(k)] = kw[k] params = api.Command[name].args_options_2_params(*a, **newkw) result = api.Command[name](*a, **newkw) self.info( '%s: batch: %s(%s): SUCCESS', context.principal, name, ', '.join(api.Command[name]._repr_iter(**params)) ) result['error']=None except Exception, e: result = dict() result['error'] = unicode(e) if isinstance(e, errors.RequirementError) or \ isinstance(e, errors.CommandError): self.info( '%s: batch: %s', context.principal, e.__class__.__name__ ) else: self.info( '%s: batch: %s(%s): %s', context.principal, name, ', '.join(api.Command[name]._repr_iter(**params)), e.__class__.__name__ ) results.append(result) return dict(count=len(results) , results=results) api.register(batch) 30'>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 
# Authors:
#   Jason Gerard DeRose <jderose@redhat.com>
#
# Copyright (C) 2008  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/>.

"""
Various utility functions.
"""

import os
import imp
import time
import socket
import re
import decimal
import netaddr
from types import NoneType
from weakref import WeakKeyDictionary
from dns import resolver, rdatatype
from dns.exception import DNSException

from ipalib import errors
from ipalib.text import _
from ipapython.ssh import SSHPublicKey
from ipapython.dn import DN, RDN


def json_serialize(obj):
    if isinstance(obj, (list, tuple)):
        return [json_serialize(o) for o in obj]
    if isinstance(obj, dict):
        return dict((k, json_serialize(v)) for (k, v) in obj.iteritems())
    if isinstance(obj, (bool, float, int, long, unicode, NoneType)):
        return obj
    if isinstance(obj, str):
        return obj.decode('utf-8')
    if isinstance(obj, (decimal.Decimal, DN)):
        return str(obj)
    if not callable(getattr(obj, '__json__', None)):
        # raise TypeError('%r is not JSON serializable')
        return ''
    return json_serialize(obj.__json__())

def get_current_principal():
    try:
        # krbV isn't necessarily available on client machines, fail gracefully
        import krbV
        return unicode(krbV.default_context().default_ccache().principal().name)
    except ImportError:
        raise RuntimeError('python-krbV is not available.')
    except krbV.Krb5Error:
        #TODO: do a kinit?
        raise errors.CCacheError()


# FIXME: This function has no unit test
def find_modules_in_dir(src_dir):
    """
    Iterate through module names found in ``src_dir``.
    """
    if not (os.path.abspath(src_dir) == src_dir and os.path.isdir(src_dir)):
        return
    if os.path.islink(src_dir):
        return
    suffix = '.py'
    for name in sorted(os.listdir(src_dir)):
        if not name.endswith(suffix):
            continue
        pyfile = os.path.join(src_dir, name)
        if os.path.islink(pyfile) or not os.path.isfile(pyfile):
            continue
        module = name[:-len(suffix)]
        if module == '__init__':
            continue
        yield (module, pyfile)


def validate_host_dns(log, fqdn):
    """
    See if the hostname has a DNS A record.
    """
    try:
        answers = resolver.query(fqdn, rdatatype.A)
        log.debug(
            'IPA: found %d records for %s: %s' % (len(answers), fqdn,
                ' '.join(str(answer) for answer in answers))
        )
    except DNSException, e:
        log.debug(
            'IPA: DNS A record lookup failed for %s' % fqdn
        )
        raise errors.DNSNotARecordError()


def has_soa_or_ns_record(domain):
    """
    Checks to see if given domain has SOA or NS record.
    Returns True or False.
    """
    try:
        resolver.query(domain, rdatatype.SOA)
        soa_record_found = True
    except DNSException:
        soa_record_found = False

    try:
        resolver.query(domain, rdatatype.NS)
        ns_record_found = True
    except DNSException:
        ns_record_found = False

    return soa_record_found or ns_record_found


def normalize_name(name):
    result = dict()
    components = name.split('@')
    if len(components) == 2:
        result['domain'] = unicode(components[1]).lower()
        result['name'] = unicode(components[0]).lower()
    else:
        components = name.split('\\')
        if len(components) == 2:
            result['flatname'] = unicode(components[0]).lower()
            result['name'] = unicode(components[1]).lower()
        else:
            result['name'] = unicode(name).lower()
    return result

def isvalid_base64(data):
    """
    Validate the incoming data as valid base64 data or not.

    The character set must only include of a-z, A-Z, 0-9, + or / and
    be padded with = to be a length divisible by 4 (so only 0-2 =s are
    allowed). Its length must be divisible by 4. White space is
    not significant so it is removed.

    This doesn't guarantee we have a base64-encoded value, just that it
    fits the base64 requirements.
    """

    data = ''.join(data.split())

    if len(data) % 4 > 0 or \
        re.match('^[a-zA-Z0-9\+\/]+\={0,2}$', data) is None:
        return False
    else:
        return True

def validate_ipaddr(ipaddr):
    """
    Check to see if the given IP address is a valid IPv4 or IPv6 address.

    Returns True or False
    """
    try:
        socket.inet_pton(socket.AF_INET, ipaddr)
    except socket.error:
        try:
            socket.inet_pton(socket.AF_INET6, ipaddr)
        except socket.error:
            return False
    return True

def check_writable_file(filename):
    """
    Determine if the file is writable. If the file doesn't exist then
    open the file to test writability.
    """
    if filename is None:
        raise errors.FileError(reason=_('Filename is empty'))
    try:
        if os.path.exists(filename):
            if not os.access(filename, os.W_OK):
                raise errors.FileError(reason=_('Permission denied: %(file)s') % dict(file=filename))
        else:
            fp = open(filename, 'w')
            fp.close()
    except (IOError, OSError), e:
        raise errors.FileError(reason=str(e))

def normalize_zonemgr(zonemgr):
    if not zonemgr:
        # do not normalize empty or None value
        return zonemgr
    if '@' in zonemgr:
        # local-part needs to be normalized
        name, at, domain = zonemgr.partition('@')
        name = name.replace('.', '\\.')
        zonemgr = u''.join((name, u'.', domain))

    if not zonemgr.endswith('.'):
        zonemgr = zonemgr + u'.'

    return zonemgr

def normalize_zone(zone):
    if zone[-1] != '.':
        return zone + '.'
    else:
        return zone

def validate_dns_label(dns_label, allow_underscore=False):
    label_chars = r'a-z0-9'
    underscore_err_msg = ''
    if allow_underscore:
        label_chars += "_"
        underscore_err_msg = u' _,'
    label_regex = r'^[%(chars)s]([%(chars)s-]?[%(chars)s])*$' % dict(chars=label_chars)
    regex = re.compile(label_regex, re.IGNORECASE)

    if not dns_label:
        raise ValueError(_('empty DNS label'))

    if len(dns_label) > 63:
        raise ValueError(_('DNS label cannot be longer that 63 characters'))

    if not regex.match(dns_label):
        raise ValueError(_('only letters, numbers,%(underscore)s and - are allowed. ' \
                           'DNS label may not start or end with -') \
                           % dict(underscore=underscore_err_msg))

def validate_domain_name(domain_name, allow_underscore=False):
    if domain_name.endswith('.'):
        domain_name = domain_name[:-1]

    domain_name = domain_name.split(".")

    # apply DNS name validator to every name part
    map(lambda label:validate_dns_label(label,allow_underscore), domain_name)


def validate_zonemgr(zonemgr):
    """ See RFC 1033, 1035 """
    regex_local_part = re.compile(r'^[a-z0-9]([a-z0-9-_]?[a-z0-9])*$',
                                    re.IGNORECASE)
    local_part_errmsg = _('mail account may only include letters, numbers, -, _ and a dot. There may not be consecutive -, _ and . characters. Its parts may not start or end with - or _')
    local_part_sep = '.'
    local_part = None
    domain = None

    if len(zonemgr) > 255:
        raise ValueError(_('cannot be longer that 255 characters'))

    if zonemgr.endswith('.'):
        zonemgr = zonemgr[:-1]

    if zonemgr.count('@') == 1:
        local_part, dot, domain = zonemgr.partition('@')
    elif zonemgr.count('@') > 1:
        raise ValueError(_('too many \'@\' characters'))
    else:
        last_fake_sep = zonemgr.rfind('\\.')
        if last_fake_sep != -1: # there is a 'fake' local-part/domain separator
            local_part_sep = '\\.'
            sep = zonemgr.find('.', last_fake_sep+2)
            if sep != -1:
                local_part = zonemgr[:sep]
                domain = zonemgr[sep+1:]
        else:
            local_part, dot, domain = zonemgr.partition('.')

    if not domain:
        raise ValueError(_('missing address domain'))

    validate_domain_name(domain)

    if not local_part:
        raise ValueError(_('missing mail account'))