summaryrefslogtreecommitdiffstats
path: root/install/tools/ipactl
blob: f931a27257aaca987db46c7295cbb4708a6801f7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
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
#!/usr/bin/python
# Authors: Simo Sorce <ssorce@redhat.com>
#
# Copyright (C) 2008-2010  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 <http://www.gnu.org/licenses/>.
#

import sys
try:
    import os
    from ipaserver.install import service, installutils
    from ipapython import services as ipaservices
    from ipaserver.install.dsinstance import config_dirname, realm_to_serverid
    from ipaserver.install.installutils import is_ipa_configured, ScriptError
    from ipapython.ipautil import wait_for_open_ports, wait_for_open_socket
    from ipalib import api, errors
    from ipapython import sysrestore
    from ipapython import config
    from ipapython.dn import DN
    import ldap
    import ldap.sasl
    import ldapurl
    import socket
    import json
except ImportError:
    print >> sys.stderr, """\
There was a problem importing one of the required Python modules. The
error was:

    %s
""" % sys.exc_value
    sys.exit(1)

SASL_EXTERNAL = ldap.sasl.sasl({}, 'EXTERNAL')

class IpactlError(ScriptError):
    pass

def check_IPA_configuration():
    if not is_ipa_configured():
        # LSB status code 6: program is not configured
        raise IpactlError("IPA is not configured " +
                          "(see man pages of ipa-server-install for help)", 6)

def is_dirsrv_debugging_enabled():
    """
    Check the IPA and PKI-CA 389-ds instances to see if debugging is
    enabled. If so we suppress that in our output.

    returns True or False
    """
    debugging = False
    serverid = realm_to_serverid(api.env.realm)
    for dse in ['/etc/dirsrv/slapd-PKI-IPA/', config_dirname(serverid)]:
        try:
            fd = open(dse + 'dse.ldif', 'r')
        except IOError:
            continue
        lines = fd.readlines()
        fd.close()
        for line in lines:
            if line.lower().startswith('nsslapd-errorlog-level'):
                (option, value) = line.split(':')
                if int(value) > 0:
                    debugging = True

    return debugging

def get_capture_output(service, debug):
    """
    We want to display any output of a start/stop command with the
    exception of 389-ds when debugging is enabled because it outputs
    tons and tons of information.
    """
    if service == 'dirsrv' and not debug and is_dirsrv_debugging_enabled():
        print '    debugging enabled, suppressing output.'
        return True
    else:
        return False

def parse_options():
    usage = "%prog start|stop|restart|status\n"
    parser = config.IPAOptionParser(usage=usage,
                                    formatter=config.IPAFormatter())

    parser.add_option("-d", "--debug", action="store_true", dest="debug",
                      help="Display debugging information")

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

    return safe_options, options, args

def emit_err(err):
    sys.stderr.write(err + '\n')

def get_config(dirsrv):
    base = DN(('cn', api.env.host), ('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'), api.env.basedn)
    srcfilter = '(ipaConfigString=enabledService)'
    attrs = ['cn', 'ipaConfigString']
    if not dirsrv.is_running():
        raise IpactlError("Failed to get list of services to probe status:\n" +
                          "Directory Server is stopped", 3)

    try:
        # The start/restart functions already wait for the server to be
        # started. What we are doing with this wait is really checking to see
        # if the server is listening at all.
        lurl = ldapurl.LDAPUrl(api.env.ldap_uri)
        if lurl.urlscheme == 'ldapi':
            wait_for_open_socket(lurl.hostport, timeout=api.env.startup_timeout)
        else:
            (host,port) = lurl.hostport.split(':')
            wait_for_open_ports(host, [int(port)], timeout=api.env.startup_timeout)
        con = ldap.initialize(api.env.ldap_uri)
        con.sasl_interactive_bind_s('', SASL_EXTERNAL)
        res = con.search_st(str(base),
                            ldap.SCOPE_SUBTREE,
                            filterstr=srcfilter,
                            attrlist=attrs,
                            timeout=10)
    except ldap.SERVER_DOWN, e:
        # LSB status code 3: program is not running
        raise IpactlError("Failed to get list of services to probe status:\n" +
                          "Directory Server is stopped", 3)
    except ldap.NO_SUCH_OBJECT:
        masters_list = []
        dn = DN(('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'), api.env.basedn)
        attrs = ['cn']
        try:
            entries = con.search_s(str(dn), ldap.SCOPE_ONELEVEL, attrlist=attrs)
        except Exception, e:
            masters_list.append("No master found because of error: %s" % str(e))
        else:
            for dn,master_entry in entries:
                masters_list.append(master_entry.get('cn', [None])[0])

        masters = "\n".join(masters_list)

        raise IpactlError("Failed to get list of services to probe status!\n"
                          "Configured hostname '%s' does not match any master server in LDAP:\n%s"
                          % (api.env.host, masters))
    except Exception, e:
        raise IpactlError("Unknown error when retrieving list of services from LDAP: " + str(e))

    svc_list = []

    for entry in res:
        name = entry[1]['cn'][0]
        for p in entry[1]['ipaConfigString']:
            if p.startswith('startOrder '):
                order = p.split()[1]
        svc_list.append([order, name])

    ordered_list = []
    for (order, svc) in sorted(svc_list):
        if svc in service.SERVICE_LIST:
            ordered_list.append(service.SERVICE_LIST[svc][0])
    return ordered_list

def get_config_from_file():

    svc_list = []

    try:
        f = open(ipaservices.get_svc_list_file(), 'r')
        svc_list = json.load(f)
    except Exception, e:
        raise IpactlError("Unknown error when retrieving list of services from file: " + str(e))

    # the framework can start/stop a number of related services we are not
    # authoritative for, so filter the list through SERVICES_LIST and order it
    # accordingly too.

    def_svc_list = []
    for svc in service.SERVICE_LIST:
        s = service.SERVICE_LIST[svc]
        def_svc_list.append([s[1], s[0]])

    ordered_list = []
    for (order, svc) in sorted(def_svc_list):
        if svc in svc_list:
            ordered_list.append(svc)

    return ordered_list

def ipa_start(options):

    if os.path.isfile(ipaservices.get_svc_list_file()):
        emit_err("Existing service file detected!")
        emit_err("Assuming stale, cleaning and proceeding")
        # remove file with list of started services
        # This is ok as systemd will just skip services
        # that are already running and just return, so that the
        # stop() method of the base class will simply fill in the
        # service file again
        os.unlink(ipaservices.SVC_LIST_FILE)

    dirsrv = ipaservices.knownservices.dirsrv
    try:
        print "Starting Directory Service"
        dirsrv.start(capture_output=get_capture_output('dirsrv', options.debug))
    except Exception, e:
        raise IpactlError("Failed to start Directory Service: " + str(e))

    ldap_list = []
    try:
        svc_list = get_config(dirsrv)
    except Exception, e:
        emit_err("Failed to data from service file: " + str(e))
        emit_err("Shutting down")
        try:
            dirsrv.stop(capture_output=False)
        except:
            pass
        if isinstance(e, IpactlError):
            # do not display any other error message
            raise IpactlError(rval=e.rval)
        else:
            raise IpactlError()

    if len(svc_list) == 0:
        # no service to start
        return

    for svc in svc_list:
        svchandle = ipaservices.service(svc)
        try:
            print "Starting %s Service" % svc
            svchandle.start(capture_output=get_capture_output(svc, options.debug))
        except:
            emit_err("Failed to start %s Service" % svc)
            emit_err("Shutting down")
            for svc in svc_list:
                svc_off = ipaservices.service(svc)
                try:
                    svc_off.stop(capture_output=False)
                except:
                    pass
            try:
                dirsrv.stop(capture_output=False)
            except:
                pass
            raise IpactlError("Aborting ipactl")

def ipa_stop(options):
    dirsrv = ipaservices.knownservices.dirsrv
    svc_list = []
    try:
        svc_list = get_config_from_file()
    except Exception, e:
        # Issue reading the file ? Let's try to get data from LDAP as a
        # fallback
        try:
            dirsrv.start(capture_output=False)
            svc_list = get_config(dirsrv)
        except Exception, e:
            emit_err("Failed to read data from Directory Service: " + str(e))
            emit_err("Shutting down")
            try:
                # just try to stop it, do not read a result
                dirsrv.stop()
            finally:
                raise IpactlError()

    if len(svc_list) == 0:
        # no service to stop
        return

    for svc in reversed(svc_list):
        svchandle = ipaservices.service(svc)
        try:
            print "Stopping %s Service" % svc
            svchandle.stop(capture_output=False)
        except:
            emit_err("Failed to stop %s Service" % svc)

    try:
        print "Stopping Directory Service"
        dirsrv.stop(capture_output=False)
    except:
        raise IpactlError("Failed to stop Directory Service")

    # remove file with list of started services
    os.unlink(ipaservices.SVC_LIST_FILE)


def ipa_restart(options):
    dirsrv = ipaservices.knownservices.dirsrv
    new_svc_list = []
    try:
        new_svc_list = get_config(dirsrv)
    except Exception, e:
        emit_err("Failed to read data from Directory Service: " + str(e))
        emit_err("Shutting down")
        try:
            dirsrv.stop(capture_output=False)
        except:
            pass
        if isinstance(e, IpactlError):
            # do not display any other error message
            raise IpactlError(rval=e.rval)
        else:
            raise IpactlError()

    old_svc_list = []
    try:
        old_svc_list = get_config_from_file()
    except Exception, e:
        emit_err("Failed to get service list from file: " + str(e))
        # fallback to what's in LDAP
        old_svc_list = new_svc_list

    # match service to start/stop
    svc_list = []
    for s in new_svc_list:
        if s in old_svc_list:
            svc_list.append(s)

    #remove commons
    for s in svc_list:
        if s in old_svc_list:
            old_svc_list.remove(s)
    for s in svc_list:
        if s in new_svc_list:
            new_svc_list.remove(s)

    if len(old_svc_list) != 0:
        # we need to definitely stop some services
        for svc in reversed(old_svc_list):
            svchandle = ipaservices.service(svc)
            try:
                print "Stopping %s Service" % svc
                svchandle.stop(capture_output=False)
            except:
                emit_err("Failed to stop %s Service" % svc)

    try:
        print "Restarting Directory Service"
        dirsrv.restart(capture_output=get_capture_output('dirsrv', options.debug))
    except Exception, e:
        emit_err("Failed to restart Directory Service: " + str(e))
        emit_err("Shutting down")
        for svc in reversed(svc_list):
            svc_off = ipaservices.service(svc)
            try:
                svc_off.stop(capture_output=False)
            except:
                pass
        try:
            dirsrv.stop(capture_output=False)
        except:
            pass
        raise IpactlError("Aborting ipactl")

    if len(svc_list) != 0:
        # there are services to restart

        for svc in svc_list:
            svchandle = ipaservices.service(svc)
            try:
                print "Restarting %s Service" % svc
                svchandle.restart(capture_output=get_capture_output(svc, options.debug))
            except:
                emit_err("Failed to restart %s Service" % svc)
                emit_err("Shutting down")
                for svc in reversed(svc_list):
                    svc_off = ipaservices.service(svc)
                    try:
                        svc_off.stop(capture_output=False)
                    except:
                        pass
                try:
                    dirsrv.stop(capture_output=False)
                except:
                    pass
                raise IpactlError("Aborting ipactl")

    if len(new_svc_list) != 0:
        # we still need to start some services
        for svc in new_svc_list:
            svchandle = ipaservices.service(svc)
            try:
                print "Starting %s Service" % svc
                svchandle.start(capture_output=get_capture_output(svc, options.debug))
            except:
                emit_err("Failed to start %s Service" % svc)
                emit_err("Shutting down")
                for svc in reversed(svc_list):
                    svc_off = ipaservices.service(svc)
                    try:
                        svc_off.stop(capture_output=False)
                    except:
                        pass
                try:
                    dirsrv.stop(capture_output=False)
                except:
                    pass
                raise IpactlError("Aborting ipactl")

def ipa_status(options):

    try:
        svc_list = get_config_from_file()
    except IpactlError, e:
        raise e
    except Exception, e:
        raise IpactlError("Failed to get list of services to probe status: " + str(e))

    dirsrv = ipaservices.knownservices.dirsrv
    try:
        if dirsrv.is_running():
            print "Directory Service: RUNNING"
        else:
            print "Directory Service: STOPPED"
    except:
        raise IpactlError("Failed to get Directory Service status")

    if len(svc_list) == 0:
        return

    for svc in svc_list:
        svchandle = ipaservices.service(svc)
        try:
            if svchandle.is_running():
                print "%s Service: RUNNING" % svc
            else:
                print "%s Service: STOPPED" % svc
        except:
            emit_err("Failed to get %s Service status" % svc)

def main():
    if not os.getegid() == 0:
        # LSB status code 4: user had insufficient privilege
        raise IpactlError("You must be root to run ipactl.", 4)

    safe_options, options, args = parse_options()

    if len(args) != 1:
        # LSB status code 2: invalid or excess argument(s)
        raise IpactlError("You must specify one action", 2)
    elif args[0] != "start" and args[0] != "stop" and args[0] != "restart" and args[0] != "status":
        raise IpactlError("Unrecognized action [" + args[0] + "]", 2)

    # check if IPA is configured at all
    try:
        check_IPA_configuration()
    except IpactlError, e:
        if args[0].lower() == "status":
            # Different LSB return code for status command:
            # 4 - program or service status is unknown
            # This should differentiate uninstalled IPA from status
            # code 3 - program is not running
            e.rval = 4
            raise e
        else:
            raise e

    api.bootstrap(context='cli', debug=options.debug)
    api.finalize()

    if '.' not in api.env.host:
        raise IpactlError("Invalid hostname '%s' in IPA configuration!\n"
                          "The hostname must be fully-qualified" % api.env.host)

    if args[0].lower() == "start":
        ipa_start(options)
    elif args[0].lower() == "stop":
        ipa_stop(options)
    elif args[0].lower() == "restart":
        ipa_restart(options)
    elif args[0].lower() == "status":
        ipa_status(options)


if __name__ == '__main__':
    installutils.run_script(main, operation_name='ipactl')