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1 | package PVE::AccessControl; | |
2 | ||
3 | use strict; | |
4 | use Encode; | |
5 | use Crypt::OpenSSL::Random; | |
6 | use Crypt::OpenSSL::RSA; | |
7 | use MIME::Base64; | |
8 | use Digest::SHA; | |
9 | use Authen::PAM qw(:constants); | |
10 | use Net::LDAP; | |
11 | use PVE::Tools qw(run_command lock_file file_get_contents split_list safe_print); | |
12 | use PVE::Cluster qw(cfs_register_file cfs_read_file cfs_write_file cfs_lock_file); | |
13 | use PVE::JSONSchema; | |
14 | use Encode; | |
15 | ||
16 | use Data::Dumper; # fixme: remove | |
17 | ||
18 | # $authdir must be writable by root only! | |
19 | my $confdir = "/etc/pve"; | |
20 | my $authdir = "$confdir/priv"; | |
21 | my $authprivkeyfn = "$authdir/authkey.key"; | |
22 | my $authpubkeyfn = "$confdir/authkey.pub"; | |
23 | my $shadowconfigfile = "priv/shadow.cfg"; | |
24 | my $domainconfigfile = "domains.cfg"; | |
25 | my $pve_www_key_fn = "$confdir/pve-www.key"; | |
26 | ||
27 | my $ticket_lifetime = 3600*2; # 2 hours | |
28 | ||
29 | Crypt::OpenSSL::RSA->import_random_seed(); | |
30 | ||
31 | cfs_register_file('user.cfg', | |
32 | \&parse_user_config, | |
33 | \&write_user_config); | |
34 | ||
35 | cfs_register_file($shadowconfigfile, | |
36 | \&parse_shadow_passwd, | |
37 | \&write_shadow_config); | |
38 | ||
39 | cfs_register_file($domainconfigfile, | |
40 | \&parse_domains, | |
41 | \&write_domains); | |
42 | ||
43 | ||
44 | sub lock_user_config { | |
45 | my ($code, $errmsg) = @_; | |
46 | ||
47 | cfs_lock_file("user.cfg", undef, $code); | |
48 | my $err = $@; | |
49 | if ($err) { | |
50 | $errmsg ? die "$errmsg: $err" : die $err; | |
51 | } | |
52 | } | |
53 | ||
54 | sub lock_domain_config { | |
55 | my ($code, $errmsg) = @_; | |
56 | ||
57 | cfs_lock_file($domainconfigfile, undef, $code); | |
58 | my $err = $@; | |
59 | if ($err) { | |
60 | $errmsg ? die "$errmsg: $err" : die $err; | |
61 | } | |
62 | } | |
63 | ||
64 | sub lock_shadow_config { | |
65 | my ($code, $errmsg) = @_; | |
66 | ||
67 | cfs_lock_file($shadowconfigfile, undef, $code); | |
68 | my $err = $@; | |
69 | if ($err) { | |
70 | $errmsg ? die "$errmsg: $err" : die $err; | |
71 | } | |
72 | } | |
73 | ||
74 | my $pve_auth_pub_key; | |
75 | sub get_pubkey { | |
76 | ||
77 | return $pve_auth_pub_key if $pve_auth_pub_key; | |
78 | ||
79 | my $input = PVE::Tools::file_get_contents($authpubkeyfn); | |
80 | ||
81 | $pve_auth_pub_key = Crypt::OpenSSL::RSA->new_public_key($input); | |
82 | ||
83 | return $pve_auth_pub_key; | |
84 | } | |
85 | ||
86 | my $csrf_prevention_secret; | |
87 | my $get_csrfr_secret = sub { | |
88 | if (!$csrf_prevention_secret) { | |
89 | my $input = PVE::Tools::file_get_contents($pve_www_key_fn); | |
90 | $csrf_prevention_secret = Digest::SHA::sha1_base64($input); | |
91 | } | |
92 | return $csrf_prevention_secret; | |
93 | }; | |
94 | ||
95 | sub assemble_csrf_prevention_token { | |
96 | my ($username) = @_; | |
97 | ||
98 | my $timestamp = sprintf("%08X", time()); | |
99 | ||
100 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); | |
101 | ||
102 | return "$timestamp:$digest"; | |
103 | } | |
104 | ||
105 | sub verify_csrf_prevention_token { | |
106 | my ($username, $token, $noerr) = @_; | |
107 | ||
108 | if ($token =~ m/^([A-Z0-9]{8}):(\S+)$/) { | |
109 | my $sig = $2; | |
110 | my $timestamp = $1; | |
111 | my $ttime = hex($timestamp); | |
112 | ||
113 | my $digest = Digest::SHA::sha1_base64("$timestamp:$username", &$get_csrfr_secret()); | |
114 | ||
115 | my $age = time() - $ttime; | |
116 | return if ($digest eq $sig) && ($age > -300) && ($age < $ticket_lifetime); | |
117 | } | |
118 | ||
119 | die "Permission denied - invalid csrf token\n" if !$noerr; | |
120 | ||
121 | return undef; | |
122 | } | |
123 | ||
124 | my $pve_auth_priv_key; | |
125 | sub get_privkey { | |
126 | ||
127 | return $pve_auth_priv_key if $pve_auth_priv_key; | |
128 | ||
129 | my $input = PVE::Tools::file_get_contents($authprivkeyfn); | |
130 | ||
131 | $pve_auth_priv_key = Crypt::OpenSSL::RSA->new_private_key($input); | |
132 | ||
133 | return $pve_auth_priv_key; | |
134 | } | |
135 | ||
136 | sub assemble_ticket { | |
137 | my ($username) = @_; | |
138 | ||
139 | my $rsa_priv = get_privkey(); | |
140 | ||
141 | my $timestamp = sprintf("%08X", time()); | |
142 | ||
143 | my $plain = "PVE:$username:$timestamp"; | |
144 | ||
145 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($plain), ''); | |
146 | ||
147 | return $ticket; | |
148 | } | |
149 | ||
150 | sub verify_ticket { | |
151 | my ($ticket, $noerr) = @_; | |
152 | ||
153 | if ($ticket && $ticket =~ m/^(PVE:\S+)::([^:\s]+)$/) { | |
154 | my $plain = $1; | |
155 | my $sig = $2; | |
156 | ||
157 | my $rsa_pub = get_pubkey(); | |
158 | if ($rsa_pub->verify($plain, decode_base64($sig))) { | |
159 | if ($plain =~ m/^PVE:(([A-Za-z0-9\.\-_]+)(\@([A-Za-z0-9\.\-_]+))?):([A-Z0-9]{8})$/) { | |
160 | my $username = $1; | |
161 | my $timestamp = $5; | |
162 | my $ttime = hex($timestamp); | |
163 | ||
164 | my $age = time() - $ttime; | |
165 | ||
166 | if (($age > -300) && ($age < $ticket_lifetime)) { | |
167 | return wantarray ? ($username, $age) : $username; | |
168 | } | |
169 | } | |
170 | } | |
171 | } | |
172 | ||
173 | die "permission denied - invalid ticket\n" if !$noerr; | |
174 | ||
175 | return undef; | |
176 | } | |
177 | ||
178 | # VNC tickets | |
179 | # - they do not contain the username in plain text | |
180 | # - they are restricted to a specific resource path (example: '/vms/100') | |
181 | sub assemble_vnc_ticket { | |
182 | my ($username, $path) = @_; | |
183 | ||
184 | my $rsa_priv = get_privkey(); | |
185 | ||
186 | my $timestamp = sprintf("%08X", time()); | |
187 | ||
188 | my $plain = "PVEVNC:$timestamp"; | |
189 | ||
190 | $path = normalize_path($path); | |
191 | ||
192 | my $full = "$plain:$username:$path"; | |
193 | ||
194 | my $ticket = $plain . "::" . encode_base64($rsa_priv->sign($full), ''); | |
195 | ||
196 | return $ticket; | |
197 | } | |
198 | ||
199 | sub verify_vnc_ticket { | |
200 | my ($ticket, $username, $path, $noerr) = @_; | |
201 | ||
202 | if ($ticket && $ticket =~ m/^(PVEVNC:\S+)::([^:\s]+)$/) { | |
203 | my $plain = $1; | |
204 | my $sig = $2; | |
205 | my $full = "$plain:$username:$path"; | |
206 | ||
207 | my $rsa_pub = get_pubkey(); | |
208 | # Note: sign only match if $username and $path is correct | |
209 | if ($rsa_pub->verify($full, decode_base64($sig))) { | |
210 | if ($plain =~ m/^PVEVNC:([A-Z0-9]{8})$/) { | |
211 | my $ttime = hex($1); | |
212 | ||
213 | my $age = time() - $ttime; | |
214 | ||
215 | if (($age > -20) && ($age < 40)) { | |
216 | return 1; | |
217 | } | |
218 | } | |
219 | } | |
220 | } | |
221 | ||
222 | die "permission denied - invalid vnc ticket\n" if !$noerr; | |
223 | ||
224 | return undef; | |
225 | } | |
226 | ||
227 | ||
228 | sub authenticate_user_shadow { | |
229 | my ($userid, $password) = @_; | |
230 | ||
231 | die "no password\n" if !$password; | |
232 | ||
233 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
234 | ||
235 | if ($shadow_cfg->{users}->{$userid}) { | |
236 | my $encpw = crypt($password, $shadow_cfg->{users}->{$userid}->{shadow}); | |
237 | die "invalid credentials\n" if ($encpw ne $shadow_cfg->{users}->{$userid}->{shadow}); | |
238 | } else { | |
239 | die "no password set\n"; | |
240 | } | |
241 | } | |
242 | ||
243 | sub authenticate_user_pam { | |
244 | my ($userid, $password) = @_; | |
245 | ||
246 | # user (www-data) need to be able to read /etc/passwd /etc/shadow | |
247 | ||
248 | die "no password\n" if !$password; | |
249 | ||
250 | my $pamh = new Authen::PAM ('common-auth', $userid, sub { | |
251 | my @res; | |
252 | while(@_) { | |
253 | my $msg_type = shift; | |
254 | my $msg = shift; | |
255 | push @res, (0, $password); | |
256 | } | |
257 | push @res, 0; | |
258 | return @res; | |
259 | }); | |
260 | ||
261 | if (!ref ($pamh)) { | |
262 | my $err = $pamh->pam_strerror($pamh); | |
263 | die "error during PAM init: $err"; | |
264 | } | |
265 | ||
266 | my $res; | |
267 | ||
268 | if (($res = $pamh->pam_authenticate(0)) != PAM_SUCCESS) { | |
269 | my $err = $pamh->pam_strerror($res); | |
270 | die "$err\n"; | |
271 | } | |
272 | ||
273 | if (($res = $pamh->pam_acct_mgmt (0)) != PAM_SUCCESS) { | |
274 | my $err = $pamh->pam_strerror($res); | |
275 | die "$err\n"; | |
276 | } | |
277 | ||
278 | $pamh = 0; # call destructor | |
279 | } | |
280 | ||
281 | sub authenticate_user_ad { | |
282 | ||
283 | my ($entry, $server, $userid, $password) = @_; | |
284 | ||
285 | my $default_port = $entry->{secure} ? 636: 389; | |
286 | my $port = $entry->{port} ? $entry->{port} : $default_port; | |
287 | my $scheme = $entry->{secure} ? 'ldaps' : 'ldap'; | |
288 | my $conn_string = "$scheme://${server}:$port"; | |
289 | ||
290 | my $ldap = Net::LDAP->new($server) || die "$@\n"; | |
291 | ||
292 | $userid = "$userid\@$entry->{domain}" | |
293 | if $userid !~ m/@/ && $entry->{domain}; | |
294 | ||
295 | my $res = $ldap->bind($userid, password => $password); | |
296 | ||
297 | my $code = $res->code(); | |
298 | my $err = $res->error; | |
299 | ||
300 | $ldap->unbind(); | |
301 | ||
302 | die "$err\n" if ($code); | |
303 | } | |
304 | ||
305 | sub authenticate_user_ldap { | |
306 | ||
307 | my ($entry, $server, $userid, $password) = @_; | |
308 | ||
309 | my $default_port = $entry->{secure} ? 636: 389; | |
310 | my $port = $entry->{port} ? $entry->{port} : $default_port; | |
311 | my $scheme = $entry->{secure} ? 'ldaps' : 'ldap'; | |
312 | my $conn_string = "$scheme://${server}:$port"; | |
313 | ||
314 | my $ldap = Net::LDAP->new($conn_string, verify => 'none') || die "$@\n"; | |
315 | my $search = $entry->{user_attr} . "=" . $userid; | |
316 | my $result = $ldap->search( base => "$entry->{base_dn}", | |
317 | scope => "sub", | |
318 | filter => "$search", | |
319 | attrs => ['dn'] | |
320 | ); | |
321 | die "no entries returned\n" if !$result->entries; | |
322 | my @entries = $result->entries; | |
323 | my $res = $ldap->bind($entries[0]->dn, password => $password); | |
324 | ||
325 | my $code = $res->code(); | |
326 | my $err = $res->error; | |
327 | ||
328 | $ldap->unbind(); | |
329 | ||
330 | die "$err\n" if ($code); | |
331 | } | |
332 | ||
333 | sub authenticate_user_domain { | |
334 | my ($realm, $userid, $password) = @_; | |
335 | ||
336 | my $domain_cfg = cfs_read_file($domainconfigfile); | |
337 | ||
338 | die "no auth domain specified" if !$realm; | |
339 | ||
340 | if ($realm eq 'pam') { | |
341 | authenticate_user_pam($userid, $password); | |
342 | return; | |
343 | } | |
344 | ||
345 | eval { | |
346 | if ($realm eq 'pve') { | |
347 | authenticate_user_shadow($userid, $password); | |
348 | } else { | |
349 | ||
350 | my $cfg = $domain_cfg->{$realm}; | |
351 | die "auth domain '$realm' does not exists\n" if !$cfg; | |
352 | ||
353 | if ($cfg->{type} eq 'ad') { | |
354 | eval { authenticate_user_ad($cfg, $cfg->{server1}, $userid, $password); }; | |
355 | my $err = $@; | |
356 | return if !$err; | |
357 | die $err if !$cfg->{server2}; | |
358 | authenticate_user_ad($cfg, $cfg->{server2}, $userid, $password); | |
359 | } elsif ($cfg->{type} eq 'ldap') { | |
360 | eval { authenticate_user_ldap($cfg, $cfg->{server1}, $userid, $password); }; | |
361 | my $err = $@; | |
362 | return if !$err; | |
363 | die $err if !$cfg->{server2}; | |
364 | authenticate_user_ldap($cfg, $cfg->{server2}, $userid, $password); | |
365 | } else { | |
366 | die "unknown auth type '$cfg->{type}'\n"; | |
367 | } | |
368 | } | |
369 | }; | |
370 | if (my $err = $@) { | |
371 | sleep(2); # timeout after failed auth | |
372 | die $err; | |
373 | } | |
374 | } | |
375 | ||
376 | sub check_user_exist { | |
377 | my ($usercfg, $username, $noerr) = @_; | |
378 | ||
379 | $username = verify_username($username, $noerr); | |
380 | return undef if !$username; | |
381 | ||
382 | return $usercfg->{users}->{$username} if $usercfg && $usercfg->{users}->{$username}; | |
383 | ||
384 | die "no such user ('$username')\n" if !$noerr; | |
385 | ||
386 | return undef; | |
387 | } | |
388 | ||
389 | sub check_user_enabled { | |
390 | my ($usercfg, $username, $noerr) = @_; | |
391 | ||
392 | my $data = check_user_exist($usercfg, $username, $noerr); | |
393 | return undef if !$data; | |
394 | ||
395 | return 1 if $data->{enable}; | |
396 | ||
397 | return 1 if $username eq 'root@pam'; # root is always enabled | |
398 | ||
399 | die "user '$username' is disabled\n" if !$noerr; | |
400 | ||
401 | return undef; | |
402 | } | |
403 | ||
404 | # password should be utf8 encoded | |
405 | sub authenticate_user { | |
406 | my ($username, $password) = @_; | |
407 | ||
408 | die "no username specified\n" if !$username; | |
409 | ||
410 | my ($userid, $realm); | |
411 | ||
412 | ($username, $userid, $realm) = verify_username($username); | |
413 | ||
414 | my $usercfg = cfs_read_file('user.cfg'); | |
415 | ||
416 | eval { check_user_enabled($usercfg, $username); }; | |
417 | if (my $err = $@) { | |
418 | sleep(2); | |
419 | die $err; | |
420 | } | |
421 | ||
422 | my $ctime = time(); | |
423 | my $expire = $usercfg->{users}->{$username}->{expire}; | |
424 | ||
425 | if ($expire && ($expire < $ctime)) { | |
426 | sleep(2); | |
427 | die "account expired\n" | |
428 | } | |
429 | ||
430 | authenticate_user_domain($realm, $userid, $password); | |
431 | ||
432 | return $username; | |
433 | } | |
434 | ||
435 | sub delete_shadow_password { | |
436 | my ($userid) = @_; | |
437 | ||
438 | lock_shadow_config(sub { | |
439 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
440 | delete ($shadow_cfg->{users}->{$userid}) | |
441 | if $shadow_cfg->{users}->{$userid}; | |
442 | cfs_write_file($shadowconfigfile, $shadow_cfg); | |
443 | }); | |
444 | } | |
445 | ||
446 | sub store_shadow_password { | |
447 | my ($userid, $password) = @_; | |
448 | ||
449 | lock_shadow_config(sub { | |
450 | my $shadow_cfg = cfs_read_file($shadowconfigfile); | |
451 | $shadow_cfg->{users}->{$userid}->{shadow} = encrypt_pw($password); | |
452 | cfs_write_file($shadowconfigfile, $shadow_cfg); | |
453 | }); | |
454 | } | |
455 | ||
456 | sub encrypt_pw { | |
457 | my ($pw) = @_; | |
458 | ||
459 | my $time = substr (Digest::SHA::sha1_base64 (time), 0, 8); | |
460 | return crypt (encode("utf8", $pw), "\$5\$$time\$"); | |
461 | } | |
462 | ||
463 | sub store_pam_password { | |
464 | my ($userid, $password) = @_; | |
465 | ||
466 | my $cmd = ['/usr/sbin/usermod']; | |
467 | ||
468 | my $epw = encrypt_pw($password); | |
469 | push @$cmd, '-p', $epw; | |
470 | ||
471 | push @$cmd, $userid; | |
472 | ||
473 | run_command($cmd); | |
474 | } | |
475 | ||
476 | sub domain_set_password { | |
477 | my ($realm, $userid, $password) = @_; | |
478 | ||
479 | die "no auth domain specified" if !$realm; | |
480 | ||
481 | if ($realm eq 'pam') { | |
482 | store_pam_password($userid, $password); | |
483 | } elsif ($realm eq 'pve') { | |
484 | store_shadow_password($userid, $password); | |
485 | } else { | |
486 | die "can't set password on auth domain '$realm'\n"; | |
487 | } | |
488 | } | |
489 | ||
490 | sub add_user_group { | |
491 | ||
492 | my ($username, $usercfg, $group) = @_; | |
493 | $usercfg->{users}->{$username}->{groups}->{$group} = 1; | |
494 | $usercfg->{groups}->{$group}->{users}->{$username} = 1; | |
495 | } | |
496 | ||
497 | sub delete_user_group { | |
498 | ||
499 | my ($username, $usercfg) = @_; | |
500 | ||
501 | foreach my $group (keys %{$usercfg->{groups}}) { | |
502 | ||
503 | delete ($usercfg->{groups}->{$group}->{users}->{$username}) | |
504 | if $usercfg->{groups}->{$group}->{users}->{$username}; | |
505 | } | |
506 | } | |
507 | ||
508 | sub delete_user_acl { | |
509 | ||
510 | my ($username, $usercfg) = @_; | |
511 | ||
512 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
513 | ||
514 | delete ($usercfg->{acl}->{$acl}->{users}->{$username}) | |
515 | if $usercfg->{acl}->{$acl}->{users}->{$username}; | |
516 | } | |
517 | } | |
518 | ||
519 | sub delete_group_acl { | |
520 | ||
521 | my ($group, $usercfg) = @_; | |
522 | ||
523 | foreach my $acl (keys %{$usercfg->{acl}}) { | |
524 | ||
525 | delete ($usercfg->{acl}->{$acl}->{groups}->{$group}) | |
526 | if $usercfg->{acl}->{$acl}->{groups}->{$group}; | |
527 | } | |
528 | } | |
529 | ||
530 | sub delete_pool_acl { | |
531 | ||
532 | my ($pool, $usercfg) = @_; | |
533 | ||
534 | my $path = "/pool/$pool"; | |
535 | ||
536 | foreach my $aclpath (keys %{$usercfg->{acl}}) { | |
537 | delete ($usercfg->{acl}->{$aclpath}) | |
538 | if $usercfg->{acl}->{$aclpath} eq 'path'; | |
539 | } | |
540 | } | |
541 | ||
542 | # we automatically create some predefined roles by splitting privs | |
543 | # into 3 groups (per category) | |
544 | # root: only root is allowed to do that | |
545 | # admin: an administrator can to that | |
546 | # user: a normak user/customer can to that | |
547 | my $privgroups = { | |
548 | VM => { | |
549 | root => [], | |
550 | admin => [ | |
551 | 'VM.Modify', | |
552 | 'VM.Allocate', | |
553 | 'VM.Migrate', | |
554 | ], | |
555 | user => [ | |
556 | 'VM.Console', | |
557 | 'VM.PowerMgmt', | |
558 | ], | |
559 | audit => [ | |
560 | 'VM.Audit', | |
561 | ], | |
562 | }, | |
563 | Sys => { | |
564 | root => [ | |
565 | 'Sys.PowerMgmt', | |
566 | 'Sys.Modify', # edit/change node settings | |
567 | ], | |
568 | admin => [ | |
569 | 'Permissions.Modify', | |
570 | 'Sys.Console', | |
571 | 'Sys.Syslog', | |
572 | ], | |
573 | user => [], | |
574 | audit => [ | |
575 | 'Sys.Audit', | |
576 | ], | |
577 | }, | |
578 | Datastore => { | |
579 | root => [], | |
580 | admin => [ | |
581 | 'Datastore.Allocate', | |
582 | ], | |
583 | user => [ | |
584 | 'Datastore.AllocateSpace', | |
585 | ], | |
586 | audit => [ | |
587 | 'Datastore.Audit', | |
588 | ], | |
589 | }, | |
590 | User => { | |
591 | root => [ | |
592 | 'Realm.Allocate', | |
593 | ], | |
594 | admin => [ | |
595 | 'User.Modify', | |
596 | 'Group.Allocate', # edit/change group settings | |
597 | 'Realm.AllocateUser', | |
598 | ], | |
599 | user => [], | |
600 | audit => [], | |
601 | }, | |
602 | }; | |
603 | ||
604 | my $valid_privs = {}; | |
605 | ||
606 | my $special_roles = { | |
607 | 'NoAccess' => {}, # no priviledges | |
608 | 'Administrator' => $valid_privs, # all priviledges | |
609 | }; | |
610 | ||
611 | sub create_roles { | |
612 | ||
613 | foreach my $cat (keys %$privgroups) { | |
614 | my $cd = $privgroups->{$cat}; | |
615 | foreach my $p (@{$cd->{root}}, @{$cd->{admin}}, | |
616 | @{$cd->{user}}, @{$cd->{audit}}) { | |
617 | $valid_privs->{$p} = 1; | |
618 | } | |
619 | foreach my $p (@{$cd->{admin}}, @{$cd->{user}}, @{$cd->{audit}}) { | |
620 | ||
621 | $special_roles->{"PVE${cat}Admin"}->{$p} = 1; | |
622 | $special_roles->{"PVEAdmin"}->{$p} = 1; | |
623 | } | |
624 | if (scalar(@{$cd->{user}})) { | |
625 | foreach my $p (@{$cd->{user}}, @{$cd->{audit}}) { | |
626 | $special_roles->{"PVE${cat}User"}->{$p} = 1; | |
627 | } | |
628 | } | |
629 | foreach my $p (@{$cd->{audit}}) { | |
630 | $special_roles->{"PVEAuditor"}->{$p} = 1; | |
631 | } | |
632 | } | |
633 | }; | |
634 | ||
635 | create_roles(); | |
636 | ||
637 | my $valid_attributes = { | |
638 | ad => { | |
639 | server1 => '[\w\d]+(.[\w\d]+)*', | |
640 | server2 => '[\w\d]+(.[\w\d]+)*', | |
641 | domain => '\S+', | |
642 | port => '\d+', | |
643 | secure => '', | |
644 | comment => '.*', | |
645 | }, | |
646 | ldap => { | |
647 | server1 => '[\w\d]+(.[\w\d]+)*', | |
648 | server2 => '[\w\d]+(.[\w\d]+)*', | |
649 | base_dn => '\w+=[\w\s]+(,\s*\w+=[\w\s]+)*', | |
650 | user_attr => '\S{2,}', | |
651 | secure => '', | |
652 | port => '\d+', | |
653 | comment => '.*', | |
654 | } | |
655 | }; | |
656 | ||
657 | sub add_role_privs { | |
658 | my ($role, $usercfg, $privs) = @_; | |
659 | ||
660 | return if !$privs; | |
661 | ||
662 | die "role '$role' does not exist\n" if !$usercfg->{roles}->{$role}; | |
663 | ||
664 | foreach my $priv (split_list($privs)) { | |
665 | if (defined ($valid_privs->{$priv})) { | |
666 | $usercfg->{roles}->{$role}->{$priv} = 1; | |
667 | } else { | |
668 | die "invalid priviledge '$priv'\n"; | |
669 | } | |
670 | } | |
671 | } | |
672 | ||
673 | sub normalize_path { | |
674 | my $path = shift; | |
675 | ||
676 | $path =~ s|/+|/|g; | |
677 | ||
678 | $path =~ s|/$||; | |
679 | ||
680 | $path = '/' if !$path; | |
681 | ||
682 | $path = "/$path" if $path !~ m|^/|; | |
683 | ||
684 | return undef if $path !~ m|^[[:alnum:]\-\_\/]+$|; | |
685 | ||
686 | return $path; | |
687 | } | |
688 | ||
689 | my $realm_regex = qr/[A-Za-z][A-Za-z0-9\.\-_]+/; | |
690 | ||
691 | sub pve_verify_realm { | |
692 | my ($realm, $noerr) = @_; | |
693 | ||
694 | if ($realm !~ m/^${realm_regex}$/) { | |
695 | return undef if $noerr; | |
696 | die "value does not look like a valid realm\n"; | |
697 | } | |
698 | return $realm; | |
699 | } | |
700 | ||
701 | PVE::JSONSchema::register_format('pve-userid', \&verify_username); | |
702 | sub verify_username { | |
703 | my ($username, $noerr) = @_; | |
704 | ||
705 | $username = '' if !$username; | |
706 | my $len = length($username); | |
707 | if ($len < 3) { | |
708 | die "user name '$username' is too short\n" if !$noerr; | |
709 | return undef; | |
710 | } | |
711 | if ($len > 64) { | |
712 | die "user name '$username' is too long ($len > 64)\n" if !$noerr; | |
713 | return undef; | |
714 | } | |
715 | ||
716 | # we only allow a limited set of characters (colon is not allowed, | |
717 | # because we store usernames in colon separated lists)! | |
718 | if ($username =~ m/^([^\s:]+)\@(${realm_regex})$/) { | |
719 | return wantarray ? ($username, $1, $2) : $username; | |
720 | } | |
721 | ||
722 | die "value '$username' does not look like a valid user name\n" if !$noerr; | |
723 | ||
724 | return undef; | |
725 | } | |
726 | PVE::JSONSchema::register_standard_option('userid', { | |
727 | description => "User ID", | |
728 | type => 'string', format => 'pve-userid', | |
729 | maxLength => 64, | |
730 | }); | |
731 | ||
732 | PVE::JSONSchema::register_standard_option('realm', { | |
733 | description => "Authentication domain ID", | |
734 | type => 'string', format => 'pve-configid', | |
735 | maxLength => 32, | |
736 | }); | |
737 | ||
738 | PVE::JSONSchema::register_format('pve-groupid', \&verify_groupname); | |
739 | sub verify_groupname { | |
740 | my ($groupname, $noerr) = @_; | |
741 | ||
742 | if ($groupname !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
743 | ||
744 | die "group name '$groupname' contains invalid characters\n" if !$noerr; | |
745 | ||
746 | return undef; | |
747 | } | |
748 | ||
749 | return $groupname; | |
750 | } | |
751 | ||
752 | PVE::JSONSchema::register_format('pve-roleid', \&verify_rolename); | |
753 | sub verify_rolename { | |
754 | my ($rolename, $noerr) = @_; | |
755 | ||
756 | if ($rolename !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
757 | ||
758 | die "role name '$rolename' contains invalid characters\n" if !$noerr; | |
759 | ||
760 | return undef; | |
761 | } | |
762 | ||
763 | return $rolename; | |
764 | } | |
765 | ||
766 | PVE::JSONSchema::register_format('pve-poolid', \&verify_groupname); | |
767 | sub verify_poolname { | |
768 | my ($poolname, $noerr) = @_; | |
769 | ||
770 | if ($poolname !~ m/^[A-Za-z0-9\.\-_]+$/) { | |
771 | ||
772 | die "pool name '$poolname' contains invalid characters\n" if !$noerr; | |
773 | ||
774 | return undef; | |
775 | } | |
776 | ||
777 | return $poolname; | |
778 | } | |
779 | ||
780 | PVE::JSONSchema::register_format('pve-priv', \&verify_privname); | |
781 | sub verify_privname { | |
782 | my ($priv, $noerr) = @_; | |
783 | ||
784 | if (!$valid_privs->{$priv}) { | |
785 | die "invalid priviledge '$priv'\n" if !$noerr; | |
786 | ||
787 | return undef; | |
788 | } | |
789 | ||
790 | return $priv; | |
791 | } | |
792 | ||
793 | sub userconfig_force_defaults { | |
794 | my ($cfg) = @_; | |
795 | ||
796 | foreach my $r (keys %$special_roles) { | |
797 | $cfg->{roles}->{$r} = $special_roles->{$r}; | |
798 | } | |
799 | ||
800 | # fixme: remove 'root' group (not required)? | |
801 | ||
802 | # add root user | |
803 | $cfg->{users}->{'root@pam'}->{enable} = 1; | |
804 | } | |
805 | ||
806 | sub parse_user_config { | |
807 | my ($filename, $raw) = @_; | |
808 | ||
809 | my $cfg = {}; | |
810 | ||
811 | userconfig_force_defaults($cfg); | |
812 | ||
813 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
814 | my $line = $1; | |
815 | ||
816 | next if $line =~ m/^\s*$/; # skip empty lines | |
817 | ||
818 | my @data; | |
819 | ||
820 | foreach my $d (split (/:/, $line)) { | |
821 | $d =~ s/^\s+//; | |
822 | $d =~ s/\s+$//; | |
823 | push @data, $d | |
824 | } | |
825 | ||
826 | my $et = shift @data; | |
827 | ||
828 | if ($et eq 'user') { | |
829 | my ($user, $enable, $expire, $firstname, $lastname, $email, $comment) = @data; | |
830 | ||
831 | my (undef, undef, $realm) = verify_username($user, 1); | |
832 | if (!$realm) { | |
833 | warn "user config - ignore user '$user' - invalid user name\n"; | |
834 | next; | |
835 | } | |
836 | ||
837 | $enable = $enable ? 1 : 0; | |
838 | ||
839 | $expire = 0 if !$expire; | |
840 | ||
841 | if ($expire !~ m/^\d+$/) { | |
842 | warn "user config - ignore user '$user' - (illegal characters in expire '$expire')\n"; | |
843 | next; | |
844 | } | |
845 | $expire = int($expire); | |
846 | ||
847 | #if (!verify_groupname ($group, 1)) { | |
848 | # warn "user config - ignore user '$user' - invalid characters in group name\n"; | |
849 | # next; | |
850 | #} | |
851 | ||
852 | $cfg->{users}->{$user} = { | |
853 | enable => $enable, | |
854 | # group => $group, | |
855 | }; | |
856 | $cfg->{users}->{$user}->{firstname} = PVE::Tools::decode_text($firstname) if $firstname; | |
857 | $cfg->{users}->{$user}->{lastname} = PVE::Tools::decode_text($lastname) if $lastname; | |
858 | $cfg->{users}->{$user}->{email} = $email; | |
859 | $cfg->{users}->{$user}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
860 | $cfg->{users}->{$user}->{expire} = $expire; | |
861 | ||
862 | #$cfg->{users}->{$user}->{groups}->{$group} = 1; | |
863 | #$cfg->{groups}->{$group}->{$user} = 1; | |
864 | ||
865 | } elsif ($et eq 'group') { | |
866 | my ($group, $userlist, $comment) = @data; | |
867 | ||
868 | if (!verify_groupname($group, 1)) { | |
869 | warn "user config - ignore group '$group' - invalid characters in group name\n"; | |
870 | next; | |
871 | } | |
872 | ||
873 | # make sure to add the group (even if there are no members) | |
874 | $cfg->{groups}->{$group} = { users => {} } if !$cfg->{groups}->{$group}; | |
875 | ||
876 | $cfg->{groups}->{$group}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
877 | ||
878 | foreach my $user (split_list($userlist)) { | |
879 | ||
880 | if (!verify_username($user, 1)) { | |
881 | warn "user config - ignore invalid group member '$user'\n"; | |
882 | next; | |
883 | } | |
884 | ||
885 | if ($cfg->{users}->{$user}) { # user exists | |
886 | $cfg->{users}->{$user}->{groups}->{$group} = 1; | |
887 | $cfg->{groups}->{$group}->{users}->{$user} = 1; | |
888 | } else { | |
889 | warn "user config - ignore invalid group member '$user'\n"; | |
890 | } | |
891 | } | |
892 | ||
893 | } elsif ($et eq 'role') { | |
894 | my ($role, $privlist) = @data; | |
895 | ||
896 | if (!verify_rolename($role, 1)) { | |
897 | warn "user config - ignore role '$role' - invalid characters in role name\n"; | |
898 | next; | |
899 | } | |
900 | ||
901 | # make sure to add the role (even if there are no privileges) | |
902 | $cfg->{roles}->{$role} = {} if !$cfg->{roles}->{$role}; | |
903 | ||
904 | foreach my $priv (split_list($privlist)) { | |
905 | if (defined ($valid_privs->{$priv})) { | |
906 | $cfg->{roles}->{$role}->{$priv} = 1; | |
907 | } else { | |
908 | warn "user config - ignore invalid priviledge '$priv'\n"; | |
909 | } | |
910 | } | |
911 | ||
912 | } elsif ($et eq 'acl') { | |
913 | my ($propagate, $pathtxt, $uglist, $rolelist) = @data; | |
914 | ||
915 | if (my $path = normalize_path($pathtxt)) { | |
916 | foreach my $role (split_list($rolelist)) { | |
917 | ||
918 | if (!verify_rolename($role, 1)) { | |
919 | warn "user config - ignore invalid role name '$role' in acl\n"; | |
920 | next; | |
921 | } | |
922 | ||
923 | foreach my $ug (split_list($uglist)) { | |
924 | if ($ug =~ m/^@(\w+)$/) { | |
925 | my $group = $1; | |
926 | if ($cfg->{groups}->{$group}) { # group exists | |
927 | $cfg->{acl}->{$path}->{groups}->{$group}->{$role} = $propagate; | |
928 | } else { | |
929 | warn "user config - ignore invalid acl group '$group'\n"; | |
930 | } | |
931 | } elsif (verify_username($ug, 1)) { | |
932 | if ($cfg->{users}->{$ug}) { # user exists | |
933 | $cfg->{acl}->{$path}->{users}->{$ug}->{$role} = $propagate; | |
934 | } else { | |
935 | warn "user config - ignore invalid acl member '$ug'\n"; | |
936 | } | |
937 | } else { | |
938 | warn "user config - invalid user/group '$ug' in acl\n"; | |
939 | } | |
940 | } | |
941 | } | |
942 | } else { | |
943 | warn "user config - ignore invalid path in acl '$pathtxt'\n"; | |
944 | } | |
945 | } elsif ($et eq 'pool') { | |
946 | my ($pool, $comment, $vmlist, $storelist) = @data; | |
947 | ||
948 | if (!verify_poolname($pool, 1)) { | |
949 | warn "user config - ignore pool '$pool' - invalid characters in pool name\n"; | |
950 | next; | |
951 | } | |
952 | ||
953 | # make sure to add the pool (even if there are no members) | |
954 | $cfg->{pools}->{$pool} = { vms => {}, storage => {} } if !$cfg->{pools}->{$pool}; | |
955 | ||
956 | $cfg->{pools}->{$pool}->{comment} = PVE::Tools::decode_text($comment) if $comment; | |
957 | ||
958 | foreach my $vmid (split_list($vmlist)) { | |
959 | if ($vmid !~ m/^\d+$/) { | |
960 | warn "user config - ignore invalid vmid '$vmid' in pool '$pool'\n"; | |
961 | next; | |
962 | } | |
963 | $vmid = int($vmid); | |
964 | ||
965 | if ($cfg->{vms}->{$vmid}) { | |
966 | warn "user config - ignore duplicate vmid '$vmid' in pool '$pool'\n"; | |
967 | next; | |
968 | } | |
969 | ||
970 | $cfg->{pools}->{$pool}->{vms}->{$vmid} = 1; | |
971 | ||
972 | # record vmid ==> pool relation | |
973 | $cfg->{vms}->{$vmid} = $pool; | |
974 | } | |
975 | ||
976 | foreach my $storeid (split_list($storelist)) { | |
977 | if ($storeid !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { | |
978 | warn "user config - ignore invalid storage '$storeid' in pool '$pool'\n"; | |
979 | next; | |
980 | } | |
981 | $cfg->{pools}->{$pool}->{storage}->{$storeid} = 1; | |
982 | } | |
983 | } else { | |
984 | warn "user config - ignore config line: $line\n"; | |
985 | } | |
986 | } | |
987 | ||
988 | userconfig_force_defaults($cfg); | |
989 | ||
990 | return $cfg; | |
991 | } | |
992 | ||
993 | sub parse_shadow_passwd { | |
994 | my ($filename, $raw) = @_; | |
995 | ||
996 | my $shadow = {}; | |
997 | ||
998 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
999 | my $line = $1; | |
1000 | ||
1001 | next if $line =~ m/^\s*$/; # skip empty lines | |
1002 | ||
1003 | if ($line !~ m/^\S+:\S+:$/) { | |
1004 | warn "pve shadow password: ignore invalid line $.\n"; | |
1005 | next; | |
1006 | } | |
1007 | ||
1008 | my ($userid, $crypt_pass) = split (/:/, $line); | |
1009 | $shadow->{users}->{$userid}->{shadow} = $crypt_pass; | |
1010 | } | |
1011 | ||
1012 | return $shadow; | |
1013 | } | |
1014 | ||
1015 | sub write_domains { | |
1016 | my ($filename, $cfg) = @_; | |
1017 | ||
1018 | my $data = ''; | |
1019 | ||
1020 | my $wrote_default; | |
1021 | ||
1022 | foreach my $realm (sort keys %$cfg) { | |
1023 | my $entry = $cfg->{$realm}; | |
1024 | my $type = lc($entry->{type}); | |
1025 | ||
1026 | next if !$type; | |
1027 | ||
1028 | next if ($type eq 'pam') || ($type eq 'pve'); | |
1029 | ||
1030 | my $formats = $valid_attributes->{$type}; | |
1031 | next if !$formats; | |
1032 | ||
1033 | $data .= "$type: $realm\n"; | |
1034 | ||
1035 | foreach my $k (sort keys %$entry) { | |
1036 | next if $k eq 'type'; | |
1037 | my $v = $entry->{$k}; | |
1038 | if ($k eq 'default') { | |
1039 | $data .= "\t$k\n" if $v && !$wrote_default; | |
1040 | $wrote_default = 1; | |
1041 | } elsif (defined($formats->{$k})) { | |
1042 | if (!$formats->{$k}) { | |
1043 | $data .= "\t$k\n" if $v; | |
1044 | } elsif ($v =~ m/^$formats->{$k}$/) { | |
1045 | $v = PVE::Tools::encode_text($v) if $k eq 'comment'; | |
1046 | $data .= "\t$k $v\n"; | |
1047 | } else { | |
1048 | die "invalid value '$v' for attribute '$k'\n"; | |
1049 | } | |
1050 | } else { | |
1051 | die "invalid attribute '$k' - not supported\n"; | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | $data .= "\n"; | |
1056 | } | |
1057 | ||
1058 | return $data; | |
1059 | } | |
1060 | ||
1061 | sub parse_domains { | |
1062 | my ($filename, $raw) = @_; | |
1063 | ||
1064 | my $cfg = {}; | |
1065 | ||
1066 | my $default; | |
1067 | ||
1068 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
1069 | my $line = $1; | |
1070 | ||
1071 | next if $line =~ m/^\#/; # skip comment lines | |
1072 | next if $line =~ m/^\s*$/; # skip empty lines | |
1073 | ||
1074 | if ($line =~ m/^(\S+):\s*(\S+)\s*$/) { | |
1075 | my $realm = $2; | |
1076 | my $type = lc($1); | |
1077 | ||
1078 | my $ignore = 0; | |
1079 | my $entry; | |
1080 | ||
1081 | my $formats = $valid_attributes->{$type}; | |
1082 | if (!$formats) { | |
1083 | $ignore = 1; | |
1084 | warn "ignoring domain '$realm' - (unsupported authentication type '$type')\n"; | |
1085 | } elsif (!pve_verify_realm($realm, 1)) { | |
1086 | $ignore = 1; | |
1087 | warn "ignoring domain '$realm' - (illegal characters)\n"; | |
1088 | } else { | |
1089 | $entry = { type => $type }; | |
1090 | } | |
1091 | ||
1092 | while ($raw && $raw =~ s/^(.*?)(\n|$)//) { | |
1093 | $line = $1; | |
1094 | ||
1095 | next if $line =~ m/^\#/; #skip comment lines | |
1096 | last if $line =~ m/^\s*$/; | |
1097 | ||
1098 | next if $ignore; # skip | |
1099 | ||
1100 | if ($line =~ m/^\s+(default)\s*$/) { | |
1101 | $default = $realm if !$default; | |
1102 | } elsif ($line =~ m/^\s+(\S+)(\s+(.*\S))?\s*$/) { | |
1103 | my ($k, $v) = (lc($1), $3); | |
1104 | if (defined($formats->{$k})) { | |
1105 | if (!$formats->{$k} && !defined($v)) { | |
1106 | $entry->{$k} = 1; | |
1107 | } elsif ($formats->{$k} && $v =~ m/^$formats->{$k}$/) { | |
1108 | if (!defined($entry->{$k})) { | |
1109 | $v = PVE::Tools::decode_text($v) if $k eq 'comment'; | |
1110 | $entry->{$k} = $v; | |
1111 | } else { | |
1112 | warn "ignoring duplicate attribute '$k $v'\n"; | |
1113 | } | |
1114 | } else { | |
1115 | warn "ignoring value '$v' for attribute '$k' - invalid format\n"; | |
1116 | } | |
1117 | } else { | |
1118 | warn "ignoring attribute '$k' - not supported\n"; | |
1119 | } | |
1120 | } else { | |
1121 | warn "ignore config line: $line\n"; | |
1122 | } | |
1123 | } | |
1124 | ||
1125 | if ($entry->{server2} && !$entry->{server1}) { | |
1126 | $entry->{server1} = $entry->{server2}; | |
1127 | delete $entry->{server2}; | |
1128 | } | |
1129 | ||
1130 | if ($ignore) { | |
1131 | # do nothing | |
1132 | } elsif (!$entry->{server1}) { | |
1133 | warn "ignoring domain '$realm' - missing server attribute\n"; | |
1134 | } elsif (($entry->{type} eq "ldap") && !$entry->{user_attr}) { | |
1135 | warn "ignoring domain '$realm' - missing user attribute\n"; | |
1136 | } elsif (($entry->{type} eq "ldap") && !$entry->{base_dn}) { | |
1137 | warn "ignoring domain '$realm' - missing base_dn attribute\n"; | |
1138 | } elsif (($entry->{type} eq "ad") && !$entry->{domain}) { | |
1139 | warn "ignoring domain '$realm' - missing domain attribute\n"; | |
1140 | } else { | |
1141 | $cfg->{$realm} = $entry; | |
1142 | } | |
1143 | ||
1144 | } else { | |
1145 | warn "ignore config line: $line\n"; | |
1146 | } | |
1147 | } | |
1148 | ||
1149 | $cfg->{$default}->{default} = 1 if $default; | |
1150 | ||
1151 | # add default domains | |
1152 | ||
1153 | $cfg->{pve} = { | |
1154 | type => 'builtin', | |
1155 | comment => "Proxmox VE authentication server", | |
1156 | }; | |
1157 | ||
1158 | $cfg->{pam} = { | |
1159 | type => 'builtin', | |
1160 | comment => "Linux PAM standard authentication", | |
1161 | }; | |
1162 | ||
1163 | return $cfg; | |
1164 | } | |
1165 | ||
1166 | sub write_shadow_config { | |
1167 | my ($filename, $cfg) = @_; | |
1168 | ||
1169 | my $data = ''; | |
1170 | foreach my $userid (keys %{$cfg->{users}}) { | |
1171 | my $crypt_pass = $cfg->{users}->{$userid}->{shadow}; | |
1172 | $data .= "$userid:$crypt_pass:\n"; | |
1173 | } | |
1174 | ||
1175 | return $data | |
1176 | } | |
1177 | ||
1178 | sub write_user_config { | |
1179 | my ($filename, $cfg) = @_; | |
1180 | ||
1181 | my $data = ''; | |
1182 | ||
1183 | foreach my $user (keys %{$cfg->{users}}) { | |
1184 | my $d = $cfg->{users}->{$user}; | |
1185 | my $firstname = $d->{firstname} ? PVE::Tools::encode_text($d->{firstname}) : ''; | |
1186 | my $lastname = $d->{lastname} ? PVE::Tools::encode_text($d->{lastname}) : ''; | |
1187 | my $email = $d->{email} || ''; | |
1188 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
1189 | my $expire = int($d->{expire} || 0); | |
1190 | my $enable = $d->{enable} ? 1 : 0; | |
1191 | $data .= "user:$user:$enable:$expire:$firstname:$lastname:$email:$comment:\n"; | |
1192 | } | |
1193 | ||
1194 | $data .= "\n"; | |
1195 | ||
1196 | foreach my $group (keys %{$cfg->{groups}}) { | |
1197 | my $d = $cfg->{groups}->{$group}; | |
1198 | my $list = join (',', keys %{$d->{users}}); | |
1199 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
1200 | $data .= "group:$group:$list:$comment:\n"; | |
1201 | } | |
1202 | ||
1203 | $data .= "\n"; | |
1204 | ||
1205 | foreach my $pool (keys %{$cfg->{pools}}) { | |
1206 | my $d = $cfg->{pools}->{$pool}; | |
1207 | my $vmlist = join (',', keys %{$d->{vms}}); | |
1208 | my $storelist = join (',', keys %{$d->{storage}}); | |
1209 | my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : ''; | |
1210 | $data .= "pool:$pool:$comment:$vmlist:$storelist:\n"; | |
1211 | } | |
1212 | ||
1213 | $data .= "\n"; | |
1214 | ||
1215 | foreach my $role (keys %{$cfg->{roles}}) { | |
1216 | next if $special_roles->{$role}; | |
1217 | ||
1218 | my $d = $cfg->{roles}->{$role}; | |
1219 | my $list = join (',', keys %$d); | |
1220 | $data .= "role:$role:$list:\n"; | |
1221 | } | |
1222 | ||
1223 | $data .= "\n"; | |
1224 | ||
1225 | foreach my $path (sort keys %{$cfg->{acl}}) { | |
1226 | my $d = $cfg->{acl}->{$path}; | |
1227 | ||
1228 | my $ra = {}; | |
1229 | ||
1230 | foreach my $group (keys %{$d->{groups}}) { | |
1231 | my $l0 = ''; | |
1232 | my $l1 = ''; | |
1233 | foreach my $role (sort keys %{$d->{groups}->{$group}}) { | |
1234 | my $propagate = $d->{groups}->{$group}->{$role}; | |
1235 | if ($propagate) { | |
1236 | $l1 .= ',' if $l1; | |
1237 | $l1 .= $role; | |
1238 | } else { | |
1239 | $l0 .= ',' if $l0; | |
1240 | $l0 .= $role; | |
1241 | } | |
1242 | } | |
1243 | $ra->{0}->{$l0}->{"\@$group"} = 1 if $l0; | |
1244 | $ra->{1}->{$l1}->{"\@$group"} = 1 if $l1; | |
1245 | } | |
1246 | ||
1247 | foreach my $user (keys %{$d->{users}}) { | |
1248 | # no need to save, because root is always 'Administartor' | |
1249 | next if $user eq 'root@pam'; | |
1250 | ||
1251 | my $l0 = ''; | |
1252 | my $l1 = ''; | |
1253 | foreach my $role (sort keys %{$d->{users}->{$user}}) { | |
1254 | my $propagate = $d->{users}->{$user}->{$role}; | |
1255 | if ($propagate) { | |
1256 | $l1 .= ',' if $l1; | |
1257 | $l1 .= $role; | |
1258 | } else { | |
1259 | $l0 .= ',' if $l0; | |
1260 | $l0 .= $role; | |
1261 | } | |
1262 | } | |
1263 | $ra->{0}->{$l0}->{$user} = 1 if $l0; | |
1264 | $ra->{1}->{$l1}->{$user} = 1 if $l1; | |
1265 | } | |
1266 | ||
1267 | foreach my $rolelist (sort keys %{$ra->{0}}) { | |
1268 | my $uglist = join (',', keys %{$ra->{0}->{$rolelist}}); | |
1269 | $data .= "acl:0:$path:$uglist:$rolelist:\n"; | |
1270 | } | |
1271 | foreach my $rolelist (sort keys %{$ra->{1}}) { | |
1272 | my $uglist = join (',', keys %{$ra->{1}->{$rolelist}}); | |
1273 | $data .= "acl:1:$path:$uglist:$rolelist:\n"; | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | return $data; | |
1278 | } | |
1279 | ||
1280 | sub roles { | |
1281 | my ($cfg, $user, $path) = @_; | |
1282 | ||
1283 | # NOTE: we do not consider pools here. | |
1284 | # You need to use $rpcenv->roles() instead if you want that. | |
1285 | ||
1286 | return 'Administrator' if $user eq 'root@pam'; # root can do anything | |
1287 | ||
1288 | my $perm = {}; | |
1289 | ||
1290 | foreach my $p (sort keys %{$cfg->{acl}}) { | |
1291 | my $final = ($path eq $p); | |
1292 | ||
1293 | next if !(($p eq '/') || $final || ($path =~ m|^$p/|)); | |
1294 | ||
1295 | my $acl = $cfg->{acl}->{$p}; | |
1296 | ||
1297 | #print "CHECKACL $path $p\n"; | |
1298 | #print "ACL $path = " . Dumper ($acl); | |
1299 | ||
1300 | if (my $ri = $acl->{users}->{$user}) { | |
1301 | my $new; | |
1302 | foreach my $role (keys %$ri) { | |
1303 | my $propagate = $ri->{$role}; | |
1304 | if ($final || $propagate) { | |
1305 | #print "APPLY ROLE $p $user $role\n"; | |
1306 | $new = {} if !$new; | |
1307 | $new->{$role} = 1; | |
1308 | } | |
1309 | } | |
1310 | if ($new) { | |
1311 | $perm = $new; # overwrite previous settings | |
1312 | next; # user privs always override group privs | |
1313 | } | |
1314 | } | |
1315 | ||
1316 | my $new; | |
1317 | foreach my $g (keys %{$acl->{groups}}) { | |
1318 | next if !$cfg->{groups}->{$g}->{users}->{$user}; | |
1319 | if (my $ri = $acl->{groups}->{$g}) { | |
1320 | foreach my $role (keys %$ri) { | |
1321 | my $propagate = $ri->{$role}; | |
1322 | if ($final || $propagate) { | |
1323 | #print "APPLY ROLE $p \@$g $role\n"; | |
1324 | $new = {} if !$new; | |
1325 | $new->{$role} = 1; | |
1326 | } | |
1327 | } | |
1328 | } | |
1329 | } | |
1330 | if ($new) { | |
1331 | $perm = $new; # overwrite previous settings | |
1332 | next; | |
1333 | } | |
1334 | } | |
1335 | ||
1336 | return ('NoAccess') if defined ($perm->{NoAccess}); | |
1337 | #return () if defined ($perm->{NoAccess}); | |
1338 | ||
1339 | #print "permission $user $path = " . Dumper ($perm); | |
1340 | ||
1341 | my @ra = keys %$perm; | |
1342 | ||
1343 | #print "roles $user $path = " . join (',', @ra) . "\n"; | |
1344 | ||
1345 | return @ra; | |
1346 | } | |
1347 | ||
1348 | sub permission { | |
1349 | my ($cfg, $user, $path) = @_; | |
1350 | ||
1351 | $user = verify_username($user, 1); | |
1352 | return {} if !$user; | |
1353 | ||
1354 | my @ra = roles($cfg, $user, $path); | |
1355 | ||
1356 | my $privs = {}; | |
1357 | ||
1358 | foreach my $role (@ra) { | |
1359 | if (my $privset = $cfg->{roles}->{$role}) { | |
1360 | foreach my $p (keys %$privset) { | |
1361 | $privs->{$p} = 1; | |
1362 | } | |
1363 | } | |
1364 | } | |
1365 | ||
1366 | #print "priviledges $user $path = " . Dumper ($privs); | |
1367 | ||
1368 | return $privs; | |
1369 | } | |
1370 | ||
1371 | sub check_permissions { | |
1372 | my ($username, $path, $privlist) = @_; | |
1373 | ||
1374 | $path = normalize_path($path); | |
1375 | my $usercfg = cfs_read_file('user.cfg'); | |
1376 | my $perm = permission($usercfg, $username, $path); | |
1377 | ||
1378 | foreach my $priv (split_list($privlist)) { | |
1379 | return undef if !$perm->{$priv}; | |
1380 | }; | |
1381 | ||
1382 | return 1; | |
1383 | } | |
1384 | ||
1385 | 1; |