summaryrefslogtreecommitdiffstats
path: root/contrib/check_ica_program_neigbourhood.pl
blob: 1f0fb4555eaffb89113ff1fe1e210aa2ac336255 (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
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
#!/usr/bin/perl -w

# $Id: check_ica_program_neigbourhood.pl 1097 2005-01-25 09:05:53Z stanleyhopcroft $

# Revision 1.1  2005/01/25 09:05:53  stanleyhopcroft
# New plugin to check Citrix Metaframe XP "Program Neighbourhood"
#
# Revision 1.1  2005-01-25 16:50:30+11  anwsmh
# Initial revision
#

use strict ;

use Getopt::Long;

use utils qw($TIMEOUT %ERRORS &print_revision &support);
use LWP 5.65 ;
use XML::Parser ;

my $PROGNAME = 'check_program_neigbourhood' ;
my ($debug, $xml_debug, $pn_server, $pub_apps, $app_servers, $server_farm, $usage) ;

Getopt::Long::Configure('bundling', 'no_ignore_case') ;
GetOptions
        ("V|version"     => \&version,
        "A|published_app:s"        => \$pub_apps,
        "h|help"         => \&help,
        'usage|?'        => \&usage,
        "F|server_farm=s"  => \$server_farm,
        "P|pn_server=s"  => \$pn_server,
        "S|app_server=s" => \$app_servers,
        "v|verbose"        => \$debug,
        "x|xml_debug"    => \$xml_debug,
) ;

$pn_server		|| do  {
	print "Name or IP Address of _one_ Program Neighbourhood server is required.\n" ;
	&print_usage ;
	exit $ERRORS{UNKNOWN} ;
} ;

$pub_apps		||= 'Word 2003' ;
$pub_apps =~ s/["']//g ;
my @pub_apps = split /,\s*/, $pub_apps ;

my @app_servers = split /,\s*/, $app_servers ;

@app_servers		|| do  {
	print "IP Address of _each_ Application server in the Metaframe Citrix XP server farm is required.\n" ;
	&print_usage ;
	exit $ERRORS{UNKNOWN} ;
} ;

my @non_ip_addresses = grep ! /\d+\.\d+\.\d+\.\d+/, @app_servers ;

scalar(@non_ip_addresses) && do { 
	print qq(Application servers must be specified by IP Address (not name): "@non_ip_addresses".\n) ;
	&print_usage ;
	exit $ERRORS{UNKNOWN} ;
} ;

$server_farm		|| do {
	print "Name of Citrix Metaframe XP server farm is required.\n" ;
	&print_usage ;
	exit $ERRORS{UNKNOWN} ;
} ;

my %xml_tag = () ;
my @tag_stack = () ;

my $xml_p = new XML::Parser(Handlers => {Start => \&handle_start,
					 End   => sub { pop @tag_stack },
					 Char  => \&handle_char}) ;

# values required by Metaframe XP that don't appear to matter too much

my $client_host		= 'Nagios server (http://www.Nagios.ORG)' ;
my $user_name		= 'nagios' ;
my $domain			= 'Nagios_Uber_Alles' ;

# end values  required by Metaframe XP

my $nilpotent_req	= <<'EOR' ;
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd"><NFuseProtocol version="1.1">
  <RequestProtocolInfo>
    <ServerAddress addresstype="dns-port" />
  </RequestProtocolInfo>
</NFuseProtocol>
EOR

my $server_farm_req	= <<'EOR' ;
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
  <RequestServerFarmData>
    <Nil />
  </RequestServerFarmData>
</NFuseProtocol>
EOR

my $spec_server_farm_req = <<EOR ;
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
  <RequestAddress>
    <Name>
      <UnspecifiedName>$server_farm*</UnspecifiedName>
    </Name>
    <ClientName>$client_host</ClientName>
    <ClientAddress addresstype="dns-port" />
    <ServerAddress addresstype="dns-port" />
    <Flags />
    <Credentials>
      <UserName>$user_name</UserName>
      <Domain>$domain</Domain>
    </Credentials>
  </RequestAddress>
</NFuseProtocol>
EOR

my $app_req		= <<EOR ;
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
  <RequestAddress>
    <Name>
      <UnspecifiedName>PUBLISHED_APP_ENCODED</UnspecifiedName>
    </Name>
    <ClientName>Nagios_Service_Check</ClientName>
    <ClientAddress addresstype="dns-port"/>
    <ServerAddress addresstype="dns-port" />
    <Flags />
    <Credentials>
      <UserName>$PROGNAME</UserName>
      <Domain>$domain</Domain>
    </Credentials>
  </RequestAddress>
</NFuseProtocol>
EOR

my $ua = LWP::UserAgent->new ;
my $req = HTTP::Request->new('POST', "http://$pn_server/scripts/WPnBr.dll") ;
   $req->content_type('text/xml') ;

my $svr ;

my @pubapp_encoded = map { my $x = $_ ; $x =~ s/(\W)/'&#' . ord($1) . ';'/eg; $x } @pub_apps ;

my $error_tag_cr = sub { ! exists($xml_tag{ErrorId}) } ;

my @app_reqs = (
	# { Content => url,				Ok => ok_condition,				Seq => \d+ }

	{ Content => $nilpotent_req,	Ok => $error_tag_cr,			Seq => 0 }, 
	{ Content => $server_farm_req,	Ok => sub {
							! exists($xml_tag{ErrorId})			&&
							exists( $xml_tag{ServerFarmName})	&&
							defined($xml_tag{ServerFarmName})	&&
							$xml_tag{ServerFarmName} eq  $server_farm
									},								Seq => 2 },
	{ Content => $nilpotent_req,	Ok => $error_tag_cr,			Seq => 4 },
	{ Content => $spec_server_farm_req,	Ok => sub {
							! exists($xml_tag{ErrorId})			&&
							exists( $xml_tag{ServerAddress})	&&
							defined($xml_tag{ServerAddress})	&&
							$xml_tag{ServerAddress} =~ /\d+\.\d+\.\d+\.\d+:\d+/
									},								Seq => 6 },
	{ Content => $nilpotent_req,	Ok => $error_tag_cr,			Seq => 8 },
	{ Content => $app_req,			Ok => sub {
							! exists($xml_tag{ErrorId})			&&
							exists( $xml_tag{ServerAddress})	&&
							defined($xml_tag{ServerAddress})	&&
							(($svr) = split(/:/, $xml_tag{ServerAddress})) &&
							defined($svr)						&&
							scalar(grep $_ eq $svr, @app_servers)
									},								Seq => 10 }
) ;

my $app_location ;

foreach my $pub_app (@pub_apps) {

	my $pubapp_enc = shift @pubapp_encoded ;
	my $app_req_tmp = $app_reqs[5]{Content} ;
	$app_reqs[5]{Content} =~ s/PUBLISHED_APP_ENCODED/$pubapp_enc/ ;

	foreach (@app_reqs) {

		$req->content($_->{Content}) ;

		$debug			&& print STDERR "App: $pub_app Seq: $_->{Seq}\n", $req->as_string, "\n" ;

		my $resp = $ua->request($req) ;

		$debug			&& print STDERR "App: $pub_app Seq: ", $_->{Seq} + 1, "\n", $resp->as_string, "\n" ;

		$resp->is_error	&& do {
			my $err = $resp->as_string ;
			$err =~ s/\n//g ;
			&outahere(qq(Failed. HTTP error finding $pub_app at seq $_->{Seq}: "$err")) ;
        } ;
		my $xml = $resp->content ;

		my $xml_disp ;
		   ($xml_disp = $xml) =~ s/\n//g ;
		   $xml_disp =~ s/ \s+/ /g ;

		&outahere($resp->as_string)
		unless $xml ;

		my ($xml_ok, $whine) = &valid_xml($xml_p, $xml) ;

		$xml_ok			|| &outahere(qq(Failed. Bad XML finding $pub_app at eq $_->{Seq} in "$xml_disp".)) ;

		&{$_->{Ok}}		|| &outahere(qq(Failed. \"\&\$_->{Ok}\" false finding $pub_app at seq $_->{Seq} in "$xml_disp".)) ;

							# Ugly but alternative is $_->{Ok}->().
							# eval $_->{Ok} where $_->{Ok} is an
							# expression returning a bool is possible. but
							# sub { } prevent recompilation.

	}

	$app_reqs[5]{Content} = $app_req_tmp ;

	$app_location .= qq("$pub_app" => $svr, ) ;

}

substr($app_location, -2, 2) = '' ; 
print qq(Ok. Citrix XML service located all published apps $app_location.\n) ;
exit $ERRORS{'OK'} ;

sub outahere {
	print "Citrix XML service $_[0]\n" ;
	exit $ERRORS{CRITICAL} ;
}

sub valid_xml {
	my ($p, $input) = @_ ;

	%xml_tag   = () ;
	@tag_stack = () ;

	eval {
	$p->parse($input)
	} ;

	return (0, qq(XML::Parser->parse failed: Bad XML in "$input".!))
		if $@ ;

	if ( $xml_debug ) {
	print STDERR pack('A4 A30 A40', ' ', $_, qq(-> "$xml_tag{$_}")), "\n"
		foreach (keys %xml_tag)
	}

	return (1, 'valid xml')

}


sub handle_start {
	push @tag_stack, $_[1] ;

	$xml_debug		&& print STDERR pack('A8 A30 A40', ' ', 'handle_start - tag', " -> '$_[1]'"), "\n" ;
	$xml_debug 		&& print STDERR pack('A8 A30 A60', ' ', 'handle_start - @tag_stack', " -> (@tag_stack)"), "\n" ;
}

sub handle_char {
	my $text = $_[1] ;

	!($text =~ /\S/  || $text =~ /^[ \t]$/)       && return ;

	$text =~ s/\n//g ;

	my $tag = $tag_stack[-1] ;

	$xml_debug 		&& print STDERR pack('A8 A30 A30', ' ', 'handle_char - tag', " -> '$tag'"), "\n" ;
	$xml_debug 		&& print STDERR pack('A8 A30 A40', ' ', 'handle_char - text', " -> '$text'"), "\n" ;

	$xml_tag{$tag} .= $text ;

}


sub print_help() {

#          1        2         3         4         5         6         7         8
#12345678901234567890123456789012345678901234567890123456789012345678901234567890

	print_revision($PROGNAME,'$Revision: 1097 $ ');

my $help = <<EOHELP ;
Copyright (c) 2004 Karl DeBisschop/S Hopcroft

$PROGNAME -P <pn_server> -S <svr1,svr2,..> -A <app1,app2,..>
          -F <Farm> [-v -x -h -V]

Check the Citrix Metaframe XP service by completing an HTTP dialogue with a Program
Neigbourhood server (pn_server) that returns an ICA server in the named Server farm
hosting the specified applications (an ICA server in a farm which runs some MS app).
EOHELP

	print $help ;
	print "\n";
	print "\n";
	print_usage();
	print "\n";
	support();
}

sub print_usage () {

#          1        2         3         4         5         6         7         8
#12345678901234567890123456789012345678901234567890123456789012345678901234567890

my $usage = <<EOUSAGE ;
$PROGNAME
[-P | --pn_server] The name or address of the Citrix Metaframe XP
                   Program Neigbourhood server (required).
[-A | --pub_apps] The name or names of an application published by the
                  server farm (default 'Word 2003').
[-F | --server_farm] The name of a Citrix Metaframe XP server farm. (required)
[-S | --app_servers] The _IP addresses_ of _all_ of the Farms ICA servers expected
                     to host the published application.
                     Enter as a comma separated string eg 'Srv1, Svr2, ..,Srvn'.
                     Since the PN servers round-robin the app servers to the clients,
                     _all_ the server farm addresses must be specified or the check
                     will fail (required).
[-v | --verbose]
[-h | --help]
[-x | --xml_debug]
[-V | --version]
EOUSAGE

	print $usage ;

}

sub usage {
	&print_usage ;
	exit $ERRORS{'OK'} ;
}

sub version () {
	print_revision($PROGNAME,'$Revision: 1097 $ ');
	exit $ERRORS{'OK'};
}

sub help () {
	print_help();
	exit $ERRORS{'OK'};
}

=begin comment

This is the set of requests and responses transmitted between a Citrix Metaframe XP Program Neigbourhood (PN) client and a PN server.

This dialogue was captured by and reconstructed from tcpdump.

Citrix are not well known for documenting their protocols although the DTD may be informative. Note that the pair(s) 0 and 1, 4 and 5, ...
do not appear to do anything.

req 0
POST /scripts/WPnBr.dll HTTP/1.1
Content-type: text/xml
Host: 10.1.2.2:80
Content-Length: 220
Connection: Keep-Alive


<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1"><RequestProtocolInfo><ServerAddress addresstype="dns-port" /></RequestProtocolInfo></NFuseProtocol>

HTTP/1.1 100 Continue
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:40 GMT


resp 1
HTTP/1.1 200 OK
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:40 GMT
Content-type: text/xml
Content-length: 253


<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
    <ResponseProtocolInfo>
      <ServerAddress addresstype="no-change"></ServerAddress>
    </ResponseProtocolInfo>
</NFuseProtocol>

req 2
POST /scripts/WPnBr.dll HTTP/1.1
Content-type: text/xml
Host: 10.1.2.2:80
Content-Length: 191
Connection: Keep-Alive


<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1"><RequestServerFarmData><Nil /></RequestServerFarmData></NFuseProtocol>

HTTP/1.1 100 Continue
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:40 GMT


resp 3
HTTP/1.1 200 OK
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:40 GMT
Content-type: text/xml
Content-length: 293


<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
    <ResponseServerFarmData>
      <ServerFarmData>
        <ServerFarmName>FOOFARM01</ServerFarmName>
      </ServerFarmData>
    </ResponseServerFarmData>
</NFuseProtocol>

req 4
POST /scripts/WPnBr.dll HTTP/1.1
Content-type: text/xml
Host: 10.1.2.2:80
Content-Length: 220
Connection: Keep-Alive


<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1"><RequestProtocolInfo><ServerAddress addresstype="dns-port" /></RequestProtocolInfo></NFuseProtocol>

HTTP/1.1 100 Continue
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:55 GMT


resp 5
HTTP/1.1 200 OK
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:55 GMT
Content-type: text/xml
Content-length: 253


<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
    <ResponseProtocolInfo>
      <ServerAddress addresstype="no-change"></ServerAddress>
    </ResponseProtocolInfo>
</NFuseProtocol>

req 6
POST /scripts/WPnBr.dll HTTP/1.1
Content-type: text/xml
Host: 10.1.2.2:80
Content-Length: 442
Connection: Keep-Alive


<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
<RequestAddress><Name>i
  <UnspecifiedName>FOOFARM01*</UnspecifiedName>
  </Name><ClientName>WS09535</ClientName>
  <ClientAddress addresstype="dns-port" />
  <ServerAddress addresstype="dns-port" />
  <Flags />
  <Credentials>
    <UserName>foo-user</UserName>
    <Domain>some-domain</Domain>
  </Credentials>
</RequestAddress></NFuseProtocol>

HTTP/1.1 100 Continue
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:56 GMT


resp 7
HTTP/1.1 200 OK
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:12:56 GMT
Content-type: text/xml
Content-length: 507


<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
    <ResponseAddress>
      <ServerAddress addresstype="dot-port">10.1.2.2:1494</ServerAddress>
      <ServerType>win32</ServerType>
      <ConnectionType>tcp</ConnectionType>
      <ClientType>ica30</ClientType>
      <TicketTag>10.1.2.2</TicketTag>
      <SSLRelayAddress addresstype="dns-port">ica_svr01.some.domain:443</SSLRelayAddress>
    </ResponseAddress>
</NFuseProtocol>

req 8
POST /scripts/WPnBr.dll HTTP/1.1
Content-type: text/xml
Host: 10.1.2.2:80
Content-Length: 220
Connection: Keep-Alive


<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1"><RequestProtocolInfo><ServerAddress addresstype="dns-port" /></RequestProtocolInfo></NFuseProtocol>

HTTP/1.1 100 Continue
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:13:29 GMT


resp 9
HTTP/1.1 200 OK
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:13:29 GMT
Content-type: text/xml
Content-length: 253


<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
    <ResponseProtocolInfo>
      <ServerAddress addresstype="no-change"></ServerAddress>
    </ResponseProtocolInfo>
</NFuseProtocol>

req 10
POST /scripts/WPnBr.dll HTTP/1.1
Content-type: text/xml
Host: 10.1.2.2:80
Content-Length: 446
Connection: Keep-Alive


<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
<RequestAddress>i
  <Name>
    <UnspecifiedName>EXCEL#32;2003</UnspecifiedName>
  </Name>
  <ClientName>WS09535</ClientName>
  <ClientAddress addresstype="dns-port" />
  <ServerAddress addresstype="dns-port" />
  <Flags />
    <Credentials><UserName>foo-user</UserName>
      <Domain>some-domain</Domain>
    </Credentials>
</RequestAddress>i
</NFuseProtocol>

HTTP/1.1 100 Continue
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:13:29 GMT


resp 11
HTTP/1.1 200 OK
Server: Citrix Web PN Server
Date: Thu, 30 Sep 2004 00:13:29 GMT
Content-type: text/xml
Content-length: 509


<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
    <ResponseAddress>
      <ServerAddress addresstype="dot-port">10.1.2.14:1494</ServerAddress>
      <ServerType>win32</ServerType>
      <ConnectionType>tcp</ConnectionType>
      <ClientType>ica30</ClientType>
      <TicketTag>10.1.2.14</TicketTag>
      <SSLRelayAddress addresstype="dns-port">ica_svr02.some.domain:443</SSLRelayAddress>
    </ResponseAddress>
</NFuseProtocol>

** One sees this XML on an error (there may well be other error XML also, but I haven't seen it) **

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE NFuseProtocol SYSTEM "NFuse.dtd">
<NFuseProtocol version="1.1">
    <ResponseAddress>
      <ErrorId>unspecified</ErrorId>
      <BrowserError>0x0000000E</BrowserError>
    </ResponseAddress>
</NFuseProtocol>


=end comment

=cut


# You never know when you may be embedded ...