summaryrefslogtreecommitdiff
path: root/jni/ruby/test/openssl/test_ssl.rb
blob: 8aa18e57fd6adef06741553bc34678dcf984b77a (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
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
require_relative "utils"

if defined?(OpenSSL::TestUtils)

class OpenSSL::TestSSL < OpenSSL::SSLTestCase

  def test_ctx_setup
    ctx = OpenSSL::SSL::SSLContext.new
    assert_equal(ctx.setup, true)
    assert_equal(ctx.setup, nil)
  end

  def test_ctx_setup_no_compression
    ctx = OpenSSL::SSL::SSLContext.new
    ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_COMPRESSION
    assert_equal(ctx.setup, true)
    assert_equal(ctx.setup, nil)
    assert_equal(OpenSSL::SSL::OP_NO_COMPRESSION,
                 ctx.options & OpenSSL::SSL::OP_NO_COMPRESSION)
  end if defined?(OpenSSL::SSL::OP_NO_COMPRESSION)

  def test_ctx_setup_with_extra_chain_cert
    ctx = OpenSSL::SSL::SSLContext.new
    ctx.extra_chain_cert = [@ca_cert, @cli_cert]
    assert_equal(ctx.setup, true)
    assert_equal(ctx.setup, nil)
  end

  def test_not_started_session
    skip "non socket argument of SSLSocket.new is not supported on this platform" if /mswin|mingw/ =~ RUBY_PLATFORM
    open(__FILE__) do |f|
      assert_nil OpenSSL::SSL::SSLSocket.new(f).cert
    end
  end

  def test_ssl_gets
    start_server(OpenSSL::SSL::VERIFY_NONE, true) { |server, port|
      server_connect(port) { |ssl|
        ssl.write "abc\n"
        IO.select [ssl]

        line = ssl.gets

        assert_equal "abc\n", line
        assert_equal Encoding::BINARY, line.encoding
      }
    }
  end

  def test_ssl_read_nonblock
    start_server(OpenSSL::SSL::VERIFY_NONE, true) { |server, port|
      server_connect(port) { |ssl|
        assert_raise(IO::WaitReadable) { ssl.read_nonblock(100) }
        ssl.write("abc\n")
        IO.select [ssl]
        assert_equal('a', ssl.read_nonblock(1))
        assert_equal("bc\n", ssl.read_nonblock(100))
        assert_raise(IO::WaitReadable) { ssl.read_nonblock(100) }
      }
    }
  end

  def test_connect_and_close
    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      sock = TCPSocket.new("127.0.0.1", port)
      ssl = OpenSSL::SSL::SSLSocket.new(sock)
      assert(ssl.connect)
      ssl.close
      assert(!sock.closed?)
      sock.close

      sock = TCPSocket.new("127.0.0.1", port)
      ssl = OpenSSL::SSL::SSLSocket.new(sock)
      ssl.sync_close = true  # !!
      assert(ssl.connect)
      ssl.close
      assert(sock.closed?)
    }
  end

  def test_read_and_write
    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      server_connect(port) { |ssl|
        # syswrite and sysread
        ITERATIONS.times{|i|
          str = "x" * 100 + "\n"
          ssl.syswrite(str)
          newstr = ''
          newstr << ssl.sysread(str.size - newstr.size) until newstr.size == str.size
          assert_equal(str, newstr)

          str = "x" * i * 100 + "\n"
          buf = ""
          ssl.syswrite(str)
          assert_equal(buf.object_id, ssl.sysread(str.size, buf).object_id)
          newstr = buf
          newstr << ssl.sysread(str.size - newstr.size) until newstr.size == str.size
          assert_equal(str, newstr)
        }

        # puts and gets
        ITERATIONS.times{
          str = "x" * 100 + "\n"
          ssl.puts(str)
          assert_equal(str, ssl.gets)

          str = "x" * 100
          ssl.puts(str)
          assert_equal(str, ssl.gets("\n", 100))
          assert_equal("\n", ssl.gets)
        }

        # read and write
        ITERATIONS.times{|i|
          str = "x" * 100 + "\n"
          ssl.write(str)
          assert_equal(str, ssl.read(str.size))

          str = "x" * i * 100 + "\n"
          buf = ""
          ssl.write(str)
          assert_equal(buf.object_id, ssl.read(str.size, buf).object_id)
          assert_equal(str, buf)
        }
      }
    }
  end

  def test_client_auth_failure
    vflag = OpenSSL::SSL::VERIFY_PEER|OpenSSL::SSL::VERIFY_FAIL_IF_NO_PEER_CERT
    start_server(vflag, true, :ignore_listener_error => true){|server, port|
      assert_raise(OpenSSL::SSL::SSLError, Errno::ECONNRESET){
        sock = TCPSocket.new("127.0.0.1", port)
        ssl = OpenSSL::SSL::SSLSocket.new(sock)
        ssl.sync_close = true
        begin
          ssl.connect
        ensure
          ssl.close
        end
      }
    }
  end

  def test_client_auth_success
    vflag = OpenSSL::SSL::VERIFY_PEER|OpenSSL::SSL::VERIFY_FAIL_IF_NO_PEER_CERT
    start_server(vflag, true){|server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.key = @cli_key
      ctx.cert = @cli_cert

      server_connect(port, ctx) { |ssl|
        ssl.puts("foo")
        assert_equal("foo\n", ssl.gets)
      }

      called = nil
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.client_cert_cb = Proc.new{ |sslconn|
        called = true
        [@cli_cert, @cli_key]
      }

      server_connect(port, ctx) { |ssl|
        assert(called)
        ssl.puts("foo")
        assert_equal("foo\n", ssl.gets)
      }
    }
  end

  def test_client_ca
    ctx_proc = Proc.new do |ctx|
      ctx.client_ca = [@ca_cert]
    end

    vflag = OpenSSL::SSL::VERIFY_PEER|OpenSSL::SSL::VERIFY_FAIL_IF_NO_PEER_CERT
    start_server(vflag, true, :ctx_proc => ctx_proc){|server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      client_ca_from_server = nil
      ctx.client_cert_cb = Proc.new do |sslconn|
        client_ca_from_server = sslconn.client_ca
        [@cli_cert, @cli_key]
      end
      server_connect(port, ctx) { |ssl| assert_equal([@ca], client_ca_from_server) }
    }
  end

  def test_read_nonblock_without_session
    OpenSSL::TestUtils.silent do
      start_server(OpenSSL::SSL::VERIFY_NONE, false){|server, port|
        sock = TCPSocket.new("127.0.0.1", port)
        ssl = OpenSSL::SSL::SSLSocket.new(sock)
        ssl.sync_close = true

        assert_equal :wait_readable, ssl.read_nonblock(100, exception: false)
        ssl.write("abc\n")
        IO.select [ssl]
        assert_equal('a', ssl.read_nonblock(1))
        assert_equal("bc\n", ssl.read_nonblock(100))
        assert_equal :wait_readable, ssl.read_nonblock(100, exception: false)
        ssl.close
      }
    end
  end

  def test_starttls
    OpenSSL::TestUtils.silent do
      start_server(OpenSSL::SSL::VERIFY_NONE, false){|server, port|
        sock = TCPSocket.new("127.0.0.1", port)
        ssl = OpenSSL::SSL::SSLSocket.new(sock)
        ssl.sync_close = true
        str = "x" * 1000 + "\n"

        ITERATIONS.times{
          ssl.puts(str)
          assert_equal(str, ssl.gets)
        }
        starttls(ssl)

        ITERATIONS.times{
          ssl.puts(str)
          assert_equal(str, ssl.gets)
        }

        ssl.close
      }
    end
  end

  def test_parallel
    GC.start
    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      ssls = []
      10.times{
        sock = TCPSocket.new("127.0.0.1", port)
        ssl = OpenSSL::SSL::SSLSocket.new(sock)
        ssl.connect
        ssl.sync_close = true
        ssls << ssl
      }
      str = "x" * 1000 + "\n"
      ITERATIONS.times{
        ssls.each{|ssl|
          ssl.puts(str)
          assert_equal(str, ssl.gets)
        }
      }
      ssls.each{|ssl| ssl.close }
    }
  end

  def test_verify_result
    start_server(OpenSSL::SSL::VERIFY_NONE, true, :ignore_listener_error => true){|server, port|
      sock = TCPSocket.new("127.0.0.1", port)
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.set_params
      ssl = OpenSSL::SSL::SSLSocket.new(sock, ctx)
      ssl.sync_close = true
      begin
        assert_raise(OpenSSL::SSL::SSLError){ ssl.connect }
        assert_equal(OpenSSL::X509::V_ERR_SELF_SIGNED_CERT_IN_CHAIN, ssl.verify_result)
      ensure
        ssl.close
      end
    }

    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      sock = TCPSocket.new("127.0.0.1", port)
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.set_params(
        :verify_callback => Proc.new do |preverify_ok, store_ctx|
          store_ctx.error = OpenSSL::X509::V_OK
          true
        end
      )
      ssl = OpenSSL::SSL::SSLSocket.new(sock, ctx)
      ssl.sync_close = true
      begin
        ssl.connect
        assert_equal(OpenSSL::X509::V_OK, ssl.verify_result)
      ensure
        ssl.close
      end
    }

    start_server(OpenSSL::SSL::VERIFY_NONE, true, :ignore_listener_error => true){|server, port|
      sock = TCPSocket.new("127.0.0.1", port)
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.set_params(
        :verify_callback => Proc.new do |preverify_ok, store_ctx|
          store_ctx.error = OpenSSL::X509::V_ERR_APPLICATION_VERIFICATION
          false
        end
      )
      ssl = OpenSSL::SSL::SSLSocket.new(sock, ctx)
      ssl.sync_close = true
      begin
        assert_raise(OpenSSL::SSL::SSLError){ ssl.connect }
        assert_equal(OpenSSL::X509::V_ERR_APPLICATION_VERIFICATION, ssl.verify_result)
      ensure
        ssl.close
      end
    }
  end

  def test_exception_in_verify_callback_is_ignored
    start_server(OpenSSL::SSL::VERIFY_NONE, true, :ignore_listener_error => true){|server, port|
      sock = TCPSocket.new("127.0.0.1", port)
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.set_params(
        :verify_callback => Proc.new do |preverify_ok, store_ctx|
          store_ctx.error = OpenSSL::X509::V_OK
          raise RuntimeError
        end
      )
      ssl = OpenSSL::SSL::SSLSocket.new(sock, ctx)
      ssl.sync_close = true
      begin
        OpenSSL::TestUtils.silent do
          # SSLError, not RuntimeError
          assert_raise(OpenSSL::SSL::SSLError) { ssl.connect }
        end
        assert_equal(OpenSSL::X509::V_ERR_CERT_REJECTED, ssl.verify_result)
      ensure
        ssl.close
      end
    }
  end

  def test_sslctx_set_params
    start_server(OpenSSL::SSL::VERIFY_NONE, true, :ignore_listener_error => true){|server, port|
      sock = TCPSocket.new("127.0.0.1", port)
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.set_params
      assert_equal(OpenSSL::SSL::VERIFY_PEER, ctx.verify_mode)
      assert_equal(OpenSSL::SSL::SSLContext::DEFAULT_PARAMS[:options], ctx.options)
      ciphers = ctx.ciphers
      ciphers_versions = ciphers.collect{|_, v, _, _| v }
      ciphers_names = ciphers.collect{|v, _, _, _| v }
      assert(ciphers_names.all?{|v| /ADH/ !~ v })
      assert(ciphers_versions.all?{|v| /SSLv2/ !~ v })
      ssl = OpenSSL::SSL::SSLSocket.new(sock, ctx)
      ssl.sync_close = true
      begin
        assert_raise(OpenSSL::SSL::SSLError){ ssl.connect }
        assert_equal(OpenSSL::X509::V_ERR_SELF_SIGNED_CERT_IN_CHAIN, ssl.verify_result)
      ensure
        ssl.close
      end
    }
  end

  def test_post_connect_check_with_anon_ciphers
    sslerr = OpenSSL::SSL::SSLError

    start_server(OpenSSL::SSL::VERIFY_NONE, true, {use_anon_cipher: true}){|server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.ciphers = "aNULL"
      server_connect(port, ctx) { |ssl|
        msg = "Peer verification enabled, but no certificate received. Anonymous cipher suite " \
          "ADH-AES256-GCM-SHA384 was negotiated. Anonymous suites must be disabled to use peer verification."
        assert_raise_with_message(sslerr,msg){ssl.post_connection_check("localhost.localdomain")}
      }
    }
  end

  def test_post_connection_check
    sslerr = OpenSSL::SSL::SSLError

    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      server_connect(port) { |ssl|
        assert_raise(sslerr){ssl.post_connection_check("localhost.localdomain")}
        assert_raise(sslerr){ssl.post_connection_check("127.0.0.1")}
        assert(ssl.post_connection_check("localhost"))
        assert_raise(sslerr){ssl.post_connection_check("foo.example.com")}

        cert = ssl.peer_cert
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "localhost.localdomain"))
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "127.0.0.1"))
        assert(OpenSSL::SSL.verify_certificate_identity(cert, "localhost"))
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "foo.example.com"))
      }
    }

    now = Time.now
    exts = [
      ["keyUsage","keyEncipherment,digitalSignature",true],
      ["subjectAltName","DNS:localhost.localdomain",false],
      ["subjectAltName","IP:127.0.0.1",false],
    ]
    @svr_cert = issue_cert(@svr, @svr_key, 4, now, now+1800, exts,
                           @ca_cert, @ca_key, OpenSSL::Digest::SHA1.new)
    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      server_connect(port) { |ssl|
        assert(ssl.post_connection_check("localhost.localdomain"))
        assert(ssl.post_connection_check("127.0.0.1"))
        assert_raise(sslerr){ssl.post_connection_check("localhost")}
        assert_raise(sslerr){ssl.post_connection_check("foo.example.com")}

        cert = ssl.peer_cert
        assert(OpenSSL::SSL.verify_certificate_identity(cert, "localhost.localdomain"))
        assert(OpenSSL::SSL.verify_certificate_identity(cert, "127.0.0.1"))
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "localhost"))
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "foo.example.com"))
      }
    }

    now = Time.now
    exts = [
      ["keyUsage","keyEncipherment,digitalSignature",true],
      ["subjectAltName","DNS:*.localdomain",false],
    ]
    @svr_cert = issue_cert(@svr, @svr_key, 5, now, now+1800, exts,
                           @ca_cert, @ca_key, OpenSSL::Digest::SHA1.new)
    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      server_connect(port) { |ssl|
        assert(ssl.post_connection_check("localhost.localdomain"))
        assert_raise(sslerr){ssl.post_connection_check("127.0.0.1")}
        assert_raise(sslerr){ssl.post_connection_check("localhost")}
        assert_raise(sslerr){ssl.post_connection_check("foo.example.com")}
        cert = ssl.peer_cert
        assert(OpenSSL::SSL.verify_certificate_identity(cert, "localhost.localdomain"))
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "127.0.0.1"))
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "localhost"))
        assert(!OpenSSL::SSL.verify_certificate_identity(cert, "foo.example.com"))
      }
    }
  end

  def test_verify_certificate_identity
    [true, false].each do |criticality|
      cert = create_null_byte_SAN_certificate(criticality)
      assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, 'www.example.com'))
      assert_equal(true,  OpenSSL::SSL.verify_certificate_identity(cert, "www.example.com\0.evil.com"))
      assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, '192.168.7.255'))
      assert_equal(true,  OpenSSL::SSL.verify_certificate_identity(cert, '192.168.7.1'))
      assert_equal(false, OpenSSL::SSL.verify_certificate_identity(cert, '13::17'))
      assert_equal(true,  OpenSSL::SSL.verify_certificate_identity(cert, '13:0:0:0:0:0:0:17'))
    end
  end

  def test_verify_hostname
    assert_equal(true,  OpenSSL::SSL.verify_hostname("www.example.com", "*.example.com"))
    assert_equal(false, OpenSSL::SSL.verify_hostname("www.subdomain.example.com", "*.example.com"))
  end

  def test_verify_wildcard
    assert_equal(false, OpenSSL::SSL.verify_wildcard("foo", "x*"))
    assert_equal(true,  OpenSSL::SSL.verify_wildcard("foo", "foo"))
    assert_equal(true,  OpenSSL::SSL.verify_wildcard("foo", "f*"))
    assert_equal(true,  OpenSSL::SSL.verify_wildcard("foo", "*"))
    assert_equal(false, OpenSSL::SSL.verify_wildcard("abc*bcd", "abcd"))
    assert_equal(false, OpenSSL::SSL.verify_wildcard("xn--qdk4b9b", "x*"))
    assert_equal(false, OpenSSL::SSL.verify_wildcard("xn--qdk4b9b", "*--qdk4b9b"))
    assert_equal(true,  OpenSSL::SSL.verify_wildcard("xn--qdk4b9b", "xn--qdk4b9b"))
  end

  # Comments in this test is excerpted from http://tools.ietf.org/html/rfc6125#page-27
  def test_post_connection_check_wildcard_san
    # case-insensitive ASCII comparison
    # RFC 6125, section 6.4.1
    #
    # "..matching of the reference identifier against the presented identifier
    # is performed by comparing the set of domain name labels using a
    # case-insensitive ASCII comparison, as clarified by [DNS-CASE] (e.g.,
    # "WWW.Example.Com" would be lower-cased to "www.example.com" for
    # comparison purposes)
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*.example.com'), 'www.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*.Example.COM'), 'www.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*.example.com'), 'WWW.Example.COM'))
    # 1.  The client SHOULD NOT attempt to match a presented identifier in
    #     which the wildcard character comprises a label other than the
    #     left-most label (e.g., do not match bar.*.example.net).
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:www.*.com'), 'www.example.com'))
    # 2.  If the wildcard character is the only character of the left-most
    #     label in the presented identifier, the client SHOULD NOT compare
    #     against anything but the left-most label of the reference
    #     identifier (e.g., *.example.com would match foo.example.com but
    #     not bar.foo.example.com or example.com).
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*.example.com'), 'foo.example.com'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*.example.com'), 'bar.foo.example.com'))
    # 3.  The client MAY match a presented identifier in which the wildcard
    #     character is not the only character of the label (e.g.,
    #     baz*.example.net and *baz.example.net and b*z.example.net would
    #     be taken to match baz1.example.net and foobaz.example.net and
    #     buzz.example.net, respectively).  ...
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:baz*.example.com'), 'baz1.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*baz.example.com'), 'foobaz.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:b*z.example.com'), 'buzz.example.com'))
    # Section 6.4.3 of RFC6125 states that client should NOT match identifier
    # where wildcard is other than left-most label.
    #
    # Also implicitly mentions the wildcard character only in singular form,
    # and discourages matching against more than one wildcard.
    #
    # See RFC 6125, section 7.2, subitem 2.
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*b*.example.com'), 'abc.example.com'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*b*.example.com'), 'ab.example.com'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:*b*.example.com'), 'bc.example.com'))
    #                                ...  However, the client SHOULD NOT
    #   attempt to match a presented identifier where the wildcard
    #   character is embedded within an A-label or U-label [IDNA-DEFS] of
    #   an internationalized domain name [IDNA-PROTO].
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:xn*.example.com'), 'xn1ca.example.com'))
    # part of A-label
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:xn--*.example.com'), 'xn--1ca.example.com'))
    # part of U-label
    # dNSName in RFC5280 is an IA5String so U-label should NOT be allowed
    # regardless of wildcard.
    #
    # See Section 7.2 of RFC 5280:
    #   IA5String is limited to the set of ASCII characters.
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_san('DNS:á*.example.com'), 'á1.example.com'))
  end

  def test_post_connection_check_wildcard_cn
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*.example.com'), 'www.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*.Example.COM'), 'www.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*.example.com'), 'WWW.Example.COM'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('www.*.com'), 'www.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*.example.com'), 'foo.example.com'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*.example.com'), 'bar.foo.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('baz*.example.com'), 'baz1.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*baz.example.com'), 'foobaz.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('b*z.example.com'), 'buzz.example.com'))
    # Section 6.4.3 of RFC6125 states that client should NOT match identifier
    # where wildcard is other than left-most label.
    #
    # Also implicitly mentions the wildcard character only in singular form,
    # and discourages matching against more than one wildcard.
    #
    # See RFC 6125, section 7.2, subitem 2.
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*b*.example.com'), 'abc.example.com'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*b*.example.com'), 'ab.example.com'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('*b*.example.com'), 'bc.example.com'))
    assert_equal(true, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('xn*.example.com'), 'xn1ca.example.com'))
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('xn--*.example.com'), 'xn--1ca.example.com'))
    # part of U-label
    # Subject in RFC5280 states case-insensitive ASCII comparison.
    #
    # See Section 7.2 of RFC 5280:
    #   IA5String is limited to the set of ASCII characters.
    assert_equal(false, OpenSSL::SSL.verify_certificate_identity(
      create_cert_with_name('á*.example.com'), 'á1.example.com'))
  end

  def create_cert_with_san(san)
    ef = OpenSSL::X509::ExtensionFactory.new
    cert = OpenSSL::X509::Certificate.new
    cert.subject = OpenSSL::X509::Name.parse("/DC=some/DC=site/CN=Some Site")
    ext = ef.create_ext('subjectAltName', san)
    cert.add_extension(ext)
    cert
  end

  def create_cert_with_name(name)
    cert = OpenSSL::X509::Certificate.new
    cert.subject = OpenSSL::X509::Name.new([['DC', 'some'], ['DC', 'site'], ['CN', name]])
    cert
  end


  # Create NULL byte SAN certificate
  def create_null_byte_SAN_certificate(critical = false)
    ef = OpenSSL::X509::ExtensionFactory.new
    cert = OpenSSL::X509::Certificate.new
    cert.subject = OpenSSL::X509::Name.parse "/DC=some/DC=site/CN=Some Site"
    ext = ef.create_ext('subjectAltName', 'DNS:placeholder,IP:192.168.7.1,IP:13::17', critical)
    ext_asn1 = OpenSSL::ASN1.decode(ext.to_der)
    san_list_der = ext_asn1.value.reduce(nil) { |memo,val| val.tag == 4 ? val.value : memo }
    san_list_asn1 = OpenSSL::ASN1.decode(san_list_der)
    san_list_asn1.value[0].value = "www.example.com\0.evil.com"
    pos = critical ? 2 : 1
    ext_asn1.value[pos].value = san_list_asn1.to_der
    real_ext = OpenSSL::X509::Extension.new ext_asn1
    cert.add_extension(real_ext)
    cert
  end

  def test_tlsext_hostname
    return unless OpenSSL::SSL::SSLSocket.instance_methods.include?(:hostname)

    ctx_proc = Proc.new do |ctx, ssl|
      foo_ctx = ctx.dup

      ctx.servername_cb = Proc.new do |ssl2, hostname|
        case hostname
        when 'foo.example.com'
          foo_ctx
        when 'bar.example.com'
          nil
        else
          raise "unknown hostname #{hostname.inspect}"
        end
      end
    end

    server_proc = Proc.new do |ctx, ssl|
      readwrite_loop(ctx, ssl)
    end

    start_server(OpenSSL::SSL::VERIFY_NONE, true, :ctx_proc => ctx_proc, :server_proc => server_proc) do |server, port|
      2.times do |i|
        ctx = OpenSSL::SSL::SSLContext.new
        if defined?(OpenSSL::SSL::OP_NO_TICKET)
          # disable RFC4507 support
          ctx.options = OpenSSL::SSL::OP_NO_TICKET
        end
        server_connect(port, ctx) { |ssl|
          ssl.hostname = (i & 1 == 0) ? 'foo.example.com' : 'bar.example.com'
          str = "x" * 100 + "\n"
          ssl.puts(str)
          assert_equal(str, ssl.gets)
        }
      end
    end
  end

  def test_multibyte_read_write
    #German a umlaut
    auml = [%w{ C3 A4 }.join('')].pack('H*')
    auml.force_encoding(Encoding::UTF_8)

    [10, 1000, 100000].each {|i|
      str = nil
      num_written = nil
      server_proc = Proc.new {|ctx, ssl|
        cmp = ssl.read
        raw_size = cmp.size
        cmp.force_encoding(Encoding::UTF_8)
        assert_equal(str, cmp)
        assert_equal(num_written, raw_size)
        ssl.close
      }
      start_server(OpenSSL::SSL::VERIFY_NONE, true, :server_proc => server_proc){|server, port|
        server_connect(port) { |ssl|
          str = auml * i
          num_written = ssl.write(str)
        }
      }
    }
  end

  def test_unset_OP_ALL
    ctx_proc = Proc.new { |ctx|
      # If OP_DONT_INSERT_EMPTY_FRAGMENTS is not defined, this test is
      # redundant because the default options already are equal to OP_ALL.
      # But it also degrades gracefully, so keep it
      ctx.options = OpenSSL::SSL::OP_ALL
    }
    start_server(OpenSSL::SSL::VERIFY_NONE, true, :ctx_proc => ctx_proc){|server, port|
      server_connect(port) { |ssl|
        ssl.puts('hello')
        assert_equal("hello\n", ssl.gets)
      }
    }
  end

  # different OpenSSL versions react differently when facing a SSL/TLS version
  # that has been marked as forbidden, therefore either of these may be raised
  HANDSHAKE_ERRORS = [OpenSSL::SSL::SSLError, Errno::ECONNRESET]

if OpenSSL::SSL::SSLContext::METHODS.include? :TLSv1

  def test_forbid_ssl_v3_for_client
    ctx_proc = Proc.new { |ctx| ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_SSLv3 }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.ssl_version = :SSLv3
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end

  def test_forbid_ssl_v3_from_server
    start_server_version(:SSLv3) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_SSLv3
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end

end

if OpenSSL::SSL::SSLContext::METHODS.include? :TLSv1_1

  def test_tls_v1_1
    start_server_version(:TLSv1_1) { |server, port|
      server_connect(port) { |ssl| assert_equal("TLSv1.1", ssl.ssl_version) }
    }
  end

  def test_forbid_tls_v1_for_client
    ctx_proc = Proc.new { |ctx| ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_TLSv1 }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.ssl_version = :TLSv1
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end

  def test_forbid_tls_v1_from_server
    start_server_version(:TLSv1) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_TLSv1
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end

end

if OpenSSL::SSL::SSLContext::METHODS.include? :TLSv1_2

  def test_tls_v1_2
    start_server_version(:TLSv1_2) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.ssl_version = :TLSv1_2_client
      server_connect(port, ctx) { |ssl| assert_equal("TLSv1.2", ssl.ssl_version) }
    }
  end if OpenSSL::OPENSSL_VERSION_NUMBER > 0x10001000

  def test_forbid_tls_v1_1_for_client
    ctx_proc = Proc.new { |ctx| ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_TLSv1_1 }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.ssl_version = :TLSv1_1
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end if defined?(OpenSSL::SSL::OP_NO_TLSv1_1)

  def test_forbid_tls_v1_1_from_server
    start_server_version(:TLSv1_1) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_TLSv1_1
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end if defined?(OpenSSL::SSL::OP_NO_TLSv1_1)

  def test_forbid_tls_v1_2_for_client
    ctx_proc = Proc.new { |ctx| ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_TLSv1_2 }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.ssl_version = :TLSv1_2
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end if defined?(OpenSSL::SSL::OP_NO_TLSv1_2)

  def test_forbid_tls_v1_2_from_server
    start_server_version(:TLSv1_2) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.options = OpenSSL::SSL::OP_ALL | OpenSSL::SSL::OP_NO_TLSv1_2
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end if defined?(OpenSSL::SSL::OP_NO_TLSv1_2)

end

  def test_renegotiation_cb
    num_handshakes = 0
    renegotiation_cb = Proc.new { |ssl| num_handshakes += 1 }
    ctx_proc = Proc.new { |ctx| ctx.renegotiation_cb = renegotiation_cb }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      server_connect(port) { |ssl|
        assert_equal(1, num_handshakes)
      }
    }
  end

if OpenSSL::OPENSSL_VERSION_NUMBER > 0x10001000

  def test_npn_protocol_selection_ary
    advertised = ["http/1.1", "spdy/2"]
    ctx_proc = Proc.new { |ctx| ctx.npn_protocols = advertised }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      selector = lambda { |which|
        ctx = OpenSSL::SSL::SSLContext.new
        ctx.npn_select_cb = -> (protocols) { protocols.send(which) }
        server_connect(port, ctx) { |ssl|
          assert_equal(advertised.send(which), ssl.npn_protocol)
        }
      }
      selector.call(:first)
      selector.call(:last)
    }
  end

  def test_npn_protocol_selection_enum
    advertised = Object.new
    def advertised.each
      yield "http/1.1"
      yield "spdy/2"
    end
    ctx_proc = Proc.new { |ctx| ctx.npn_protocols = advertised }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      selector = lambda { |selected, which|
        ctx = OpenSSL::SSL::SSLContext.new
        ctx.npn_select_cb = -> (protocols) { protocols.to_a.send(which) }
        server_connect(port, ctx) { |ssl|
          assert_equal(selected, ssl.npn_protocol)
        }
      }
      selector.call("http/1.1", :first)
      selector.call("spdy/2", :last)
    }
  end

  def test_npn_protocol_selection_cancel
    ctx_proc = Proc.new { |ctx| ctx.npn_protocols = ["http/1.1"] }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.npn_select_cb = -> (protocols) { raise RuntimeError.new }
      assert_raise(RuntimeError) { server_connect(port, ctx) }
    }
  end

  def test_npn_advertised_protocol_too_long
    ctx_proc = Proc.new { |ctx| ctx.npn_protocols = ["a" * 256] }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.npn_select_cb = -> (protocols) { protocols.first }
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end

  def test_npn_selected_protocol_too_long
    ctx_proc = Proc.new { |ctx| ctx.npn_protocols = ["http/1.1"] }
    start_server_version(:SSLv23, ctx_proc) { |server, port|
      ctx = OpenSSL::SSL::SSLContext.new
      ctx.npn_select_cb = -> (protocols) { "a" * 256 }
      assert_raise(*HANDSHAKE_ERRORS) { server_connect(port, ctx) }
    }
  end

end

  def test_invalid_shutdown_by_gc
    assert_nothing_raised {
      start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
        10.times {
          sock = TCPSocket.new("127.0.0.1", port)
          ssl = OpenSSL::SSL::SSLSocket.new(sock)
          GC.start
          ssl.connect
          sock.close
        }
      }
    }
  end

  def test_close_after_socket_close
    start_server(OpenSSL::SSL::VERIFY_NONE, true){|server, port|
      sock = TCPSocket.new("127.0.0.1", port)
      ssl = OpenSSL::SSL::SSLSocket.new(sock)
      ssl.sync_close = true
      ssl.connect
      sock.close
      assert_nothing_raised do
        ssl.close
      end
    }
  end

  def test_sync_close_without_connect
    Socket.open(:INET, :STREAM) {|s|
      ssl = OpenSSL::SSL::SSLSocket.new(s)
      ssl.sync_close = true
      ssl.close
      assert(s.closed?)
    }
  end

  private

  def start_server_version(version, ctx_proc=nil, server_proc=nil, &blk)
    ctx_wrap = Proc.new { |ctx|
      ctx.ssl_version = version
      ctx_proc.call(ctx) if ctx_proc
    }
    start_server(
      OpenSSL::SSL::VERIFY_NONE,
      true,
      :ctx_proc => ctx_wrap,
      :server_proc => server_proc,
      :ignore_listener_error => true,
      &blk
    )
  end

  def server_connect(port, ctx=nil)
    sock = TCPSocket.new("127.0.0.1", port)
    ssl = ctx ? OpenSSL::SSL::SSLSocket.new(sock, ctx) : OpenSSL::SSL::SSLSocket.new(sock)
    ssl.sync_close = true
    ssl.connect
    yield ssl if block_given?
  ensure
    if ssl
      ssl.close
    elsif sock
      sock.close
    end
  end
end

end