[ViewVC] Annotation of: cvs/CBOR-XS/Changes

Revision history for Perl extension CBOR::XS

TODO: pack_keys?
TODO: document encode_cbor_sharing?
TODO: weaken cyclic structures?
TODO: large negative integers
TODO: type cast tests.
TODO: possibly implement https://peteroupc.github.io/CBOR/extended.html, but NaNs are nonportable. rely on libecb?
TODO: https://github.com/svaarala/cbor-specs/blob/master/cbor-nonutf8-string-tags.rst, but maybe that is overkill?
TODO: as_bool, also in Types::Serialiser?

1.81 Mon Nov 30 19:29:33 CET 2020
        - cast funbctions were broken due to last-minute renaming. thats
          what you egt for not havign a tessuite.
        - Math::BigInt and Math::BigFloat are pretty broken (again),
          so disable some tests. (try printing the bigfloat
          799999999999999999998E99999999999999999998).

1.8  Sun Nov 29 22:35:13 CET 2020
        - experimental support for some type casts, as well as embedding
          raw cbor data.

1.71 Thu Nov 15 20:52:13 CET 2018
        - work around what smells like a perl bug w.r.t. exceptions
          thrown in callbacks.
        - update libecb.

1.7  Tue Jun 27 04:02:23 CEST 2017
        - SECURITY FIX: fix two bugs found by american fuzzy lop,
          upgrade is advised if you accept data from untrusted
          sources.
        - an out-of bound sharedref or stringref index could cause an
          out of bounds access - might be exploitable.
        - a decoding error during indefinite array or hash decoding
          could cause an endless loop.

1.6  Wed Dec  7 15:13:23 CET 2016
        - greatly expand the SECURITY IMPLICATIONS and similar sections.
        - new constructor new_safe, to create a secure CBOR::XS object.
        - new option forbid_objects, to disallow serialisation.
        - new CBOR::XS::safe_filter functionality.
        - fix a crash when decoding a cyclic data structure using
          stringref/pack_strings when allow_cycles is disabled.
        - fix a crash when decoding hash keys with length >= 2**31.
        - avoid unreasonably long decoding times for certain
          types of (corrupt) cbor texts.
        - support arrays and hashes with >= 2**31 members.
        - avoid overflow on pointer arithmetic when checking whether enough
          data is available.
        - fix a memory leak that occured when decoding failed while decoding
          a tagged value.
        - do not leak the partially constructed result when stringifying
          a hash key throws an exception.
        - various code size and efficiency optimizations (reduced code
          from 42 to 40kB on my system, despite the new features).

1.5  Wed Apr 27 11:38:39 CEST 2016
        - Math::BigFloat madness workaround, see
          http://blog.schmorp.de/2016-04-23-mathbigfloat-maintainer-fail.html
          (bugreport by zdm@softvisio.net).
        - add text_keys and text_strings options to force CBOR text encoding
          for perl hash keys or all strings, as a result of discussions
          with Fredrik Ljunggren.
        - implement support for arbitrary-exponent numbers (see
          http://peteroupc.github.io/CBOR/bigfrac.html, tags 264 and 265)
          for both en- and decoding.
        - implement support for rational numbers (see
          http://peteroupc.github.io/CBOR/rational.html, tag 30) for both
          en- and decoding.
        - the above effectively implements all registered CBOR extensions
          in a sensible manner.
        - remove some weird dead code that was duplicated (%FILTER).
        - add t/58_hv.t, which tests hashes and the new text_* flags.
          hashes apparently were not encoded at all in any of the existing
          tests.
        - document Math::BigFloat base-2 performance/crash issues.
        - use stability canary.

1.41 Thu 25 Feb 15:22:03 CET 2016
        - avoid perl panics on nested FREEZE/THAW calls (testcase by
          Victor Efimov).

1.4  Mon Feb  8 05:10:15 CET 2016
        - buffer overflow fix: a fast path during decoding did not check
          remaining length when decoding hash keys, found by fuzzing.
          This can potentially leak information in the error message
          or crash the process.
        - use C style { 0 } struct initializer.
        - upgrade libecb.

1.3  Mon Apr 27 22:21:04 CEST 2015
        - the incremental parser didn't properly parse tagged values
          (testcase by Mons Anderson).
        - slightly speed up encoding of plain (nonmagical) arrays.
        - try to clarify further that effectively all 32 bit architectures
          have 64 bit integer support.
        - upgrade libecb.

1.26 Sat Oct 25 08:35:44 CEST 2014
        - update the t/57_incr.t subtest that would rely on 64 bit ints.
        - disable t/50_rfc.t test that fails because of broken data::dumper.

1.25 Sun Jan  5 15:19:14 CET 2014
        - map key decoding was pretty much botched due to the recent cleanups.
        - work around Time::Piece->epoch returning a string value, avoid encoding
          this as a tag 1 string.
        - enable more testcases in t/50_rfc.t, now that they work :)

1.2  Tue Dec 10 22:06:42 CET 2013
        - implement an incremental decoder.

1.12 Tue Dec  3 11:23:22 CET 2013
        - work around broken Time::Piece (in old versions of the module, %z doesn't
          work as documented, gives different results on different platforms(!)).

1.11 Sun Dec  1 18:00:00 CET 2013
        - new setting: validate_utf8, for when you can't trust your cbor data.
        - do not leak memory on decoding errors, when allow_cycles is enabled.
        - add default filters for tags 0 and 1, using Time::Piece.
        - more tests added.

1.1  Sat Nov 30 19:14:27 CET 2013
        - INCOMPATIBLE CHANGE: new decoder setting: allow_cyclic, needed to decode
          cyclic data structures (to avoid memleaks in unsuspecting code).
        - no longer "share" references that aren't, i.e. true/false/null/error/tagged.
        - fix stringref w.r.t. indefinite-length strings.
        - verify indefinite-length string chunk types.
        - do not allow extremely large arrays - assume an array element
          requires at least one CBOR byte, to avoid memory exhaustion attacks.
        - major code overhaul.

1.0  Thu Nov 28 16:43:31 CET 2013
        - use the now official tag values for extensions. remove the
          experimental notice. it's the real thing now, with real bugs.
        - renamed allow_stringref to pack_strings.
        - port to perl <= 5.16.
        - slightly improve the documentation.

0.09  Fri Nov 22 16:54:18 CET 2013
        - bignum/bigfloat/decimal support.
        - uri support.
        - tag filter functions support for decoding.
        - do not support reference-to-1/0/undef anymore, you need to use
          the Types::Serialiser objects now.
        - experimental sharable extension support (http://cbor.schmorp.de/value-sharing).
        - experimental stringref extension support (http://cbor.schmorp.de/stringref).
        - implement indirection tag (http://cbor.schmorp.de/indirection).

0.08  Wed Oct 30 11:10:43 CET 2013
        - defused another too fragile test.

0.07  Tue Oct 29 23:04:07 CET 2013
        - don't crash in decode when silly values are passed in.
        - considerably speed up map decoding when map keys
          are utf-8 or byte strings.
        - raising an exception in THAW should now work without
          leaking.

0.06  Tue Oct 29 16:56:07 CET 2013
        - do not leak when deserialiasing via THAW.
        - implement and document CBOR::XS creation/access/mutate
          methods.

0.05  Mon Oct 28 22:27:47 CET 2013
        - do not leak hash keys on decoding.

0.04  Sun Oct 27 23:47:47 CET 2013
        - implement TO_CBOR/FREEZE/THAW serialisation protocols.
        - requested perl-object and generic-object tags from iana.
        - switched to Types::Serialiser for true, false and error.
        - disabled some fragile tests (thanks, andk).

0.03  Sun Oct 27 00:28:41 CEST 2013
        - improve 32 bit platform compatibility.
        - take more advantage of ecb.h.
        - preliminary and bare-bones tagged support.
        - improved docs.

0.02  Sat Oct 26 13:08:05 CEST 2013
        - no aborts left.
        - add $CBOR::XS::MAGIC.
        - preliminary tagged decoding to arrayref.
        - indefinite encoding fixed.
        - half float decoding implemented.
        - t/50_rfc.t adds test vectors from the rfc, which
          are checked as applicable.

0.01  Fri Oct 25 21:39:56 CEST 2013
        - original version; cloned from JSON-XS

Revision:	1.83
Committed:	Mon Nov 30 20:38:25 2020 UTC (3 years, 5 months ago) by root
Branch:	MAIN
Changes since 1.82:	+1 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	Revision history for Perl extension CBOR::XS
2
3	root	1.30	TODO: pack_keys?
4	root	1.36	TODO: document encode_cbor_sharing?
5	root	1.38	TODO: weaken cyclic structures?
6	root	1.70	TODO: large negative integers
7	root	1.79	TODO: type cast tests.
8	root	1.81	TODO: possibly implement https://peteroupc.github.io/CBOR/extended.html, but NaNs are nonportable. rely on libecb?
9			TODO: https://github.com/svaarala/cbor-specs/blob/master/cbor-nonutf8-string-tags.rst, but maybe that is overkill?
10	root	1.83	TODO: as_bool, also in Types::Serialiser?
11	root	1.81
12	root	1.82	1.81 Mon Nov 30 19:29:33 CET 2020
13			- cast funbctions were broken due to last-minute renaming. thats
14			what you egt for not havign a tessuite.
15	root	1.81	- Math::BigInt and Math::BigFloat are pretty broken (again),
16			so disable some tests. (try printing the bigfloat
17			799999999999999999998E99999999999999999998).
18	root	1.79
19	root	1.80	1.8 Sun Nov 29 22:35:13 CET 2020
20	root	1.79	- experimental support for some type casts, as well as embedding
21			raw cbor data.
22	root	1.76
23	root	1.78	1.71 Thu Nov 15 20:52:13 CET 2018
24			- work around what smells like a perl bug w.r.t. exceptions
25			thrown in callbacks.
26			- update libecb.
27
28	root	1.77	1.7 Tue Jun 27 04:02:23 CEST 2017
29			- SECURITY FIX: fix two bugs found by american fuzzy lop,
30			upgrade is advised if you accept data from untrusted
31			sources.
32			- an out-of bound sharedref or stringref index could cause an
33			out of bounds access - might be exploitable.
34			- a decoding error during indefinite array or hash decoding
35			could cause an endless loop.
36
37	root	1.76	1.6 Wed Dec 7 15:13:23 CET 2016
38	root	1.75	- greatly expand the SECURITY IMPLICATIONS and similar sections.
39	root	1.74	- new constructor new_safe, to create a secure CBOR::XS object.
40			- new option forbid_objects, to disallow serialisation.
41			- new CBOR::XS::safe_filter functionality.
42	root	1.69	- fix a crash when decoding a cyclic data structure using
43			stringref/pack_strings when allow_cycles is disabled.
44	root	1.71	- fix a crash when decoding hash keys with length >= 2**31.
45			- avoid unreasonably long decoding times for certain
46	root	1.75	types of (corrupt) cbor texts.
47	root	1.71	- support arrays and hashes with >= 2**31 members.
48			- avoid overflow on pointer arithmetic when checking whether enough
49			data is available.
50	root	1.72	- fix a memory leak that occured when decoding failed while decoding
51			a tagged value.
52	root	1.73	- do not leak the partially constructed result when stringifying
53			a hash key throws an exception.
54	root	1.74	- various code size and efficiency optimizations (reduced code
55	root	1.75	from 42 to 40kB on my system, despite the new features).
56	root	1.46
57	root	1.67	1.5 Wed Apr 27 11:38:39 CEST 2016
58	root	1.61	- Math::BigFloat madness workaround, see
59			http://blog.schmorp.de/2016-04-23-mathbigfloat-maintainer-fail.html
60	root	1.57	(bugreport by zdm@softvisio.net).
61	root	1.61	- add text_keys and text_strings options to force CBOR text encoding
62			for perl hash keys or all strings, as a result of discussions
63			with Fredrik Ljunggren.
64	root	1.64	- implement support for arbitrary-exponent numbers (see
65			http://peteroupc.github.io/CBOR/bigfrac.html, tags 264 and 265)
66			for both en- and decoding.
67	root	1.65	- implement support for rational numbers (see
68			http://peteroupc.github.io/CBOR/rational.html, tag 30) for both
69			en- and decoding.
70	root	1.67	- the above effectively implements all registered CBOR extensions
71	root	1.66	in a sensible manner.
72	root	1.67	- remove some weird dead code that was duplicated (%FILTER).
73	root	1.60	- add t/58_hv.t, which tests hashes and the new text_* flags.
74	root	1.67	hashes apparently were not encoded at all in any of the existing
75	root	1.60	tests.
76	root	1.67	- document Math::BigFloat base-2 performance/crash issues.
77	root	1.62	- use stability canary.
78	root	1.57
79	root	1.56	1.41 Thu 25 Feb 15:22:03 CET 2016
80			- avoid perl panics on nested FREEZE/THAW calls (testcase by
81			Victor Efimov).
82
83	root	1.54	1.4 Mon Feb 8 05:10:15 CET 2016
84			- buffer overflow fix: a fast path during decoding did not check
85			remaining length when decoding hash keys, found by fuzzing.
86	root	1.55	This can potentially leak information in the error message
87			or crash the process.
88	root	1.53	- use C style { 0 } struct initializer.
89	root	1.54	- upgrade libecb.
90	root	1.53
91	root	1.52	1.3 Mon Apr 27 22:21:04 CEST 2015
92			- the incremental parser didn't properly parse tagged values
93			(testcase by Mons Anderson).
94	root	1.50	- slightly speed up encoding of plain (nonmagical) arrays.
95	root	1.51	- try to clarify further that effectively all 32 bit architectures
96			have 64 bit integer support.
97	root	1.52	- upgrade libecb.
98	root	1.50
99	root	1.49	1.26 Sat Oct 25 08:35:44 CEST 2014
100	root	1.47	- update the t/57_incr.t subtest that would rely on 64 bit ints.
101	root	1.48	- disable t/50_rfc.t test that fails because of broken data::dumper.
102	root	1.47
103	root	1.46	1.25 Sun Jan 5 15:19:14 CET 2014
104			- map key decoding was pretty much botched due to the recent cleanups.
105			- work around Time::Piece->epoch returning a string value, avoid encoding
106			this as a tag 1 string.
107			- enable more testcases in t/50_rfc.t, now that they work :)
108
109			1.2 Tue Dec 10 22:06:42 CET 2013
110			- implement an incremental decoder.
111	root	1.39
112	root	1.44	1.12 Tue Dec 3 11:23:22 CET 2013
113	root	1.45	- work around broken Time::Piece (in old versions of the module, %z doesn't
114			work as documented, gives different results on different platforms(!)).
115	root	1.43
116	root	1.42	1.11 Sun Dec 1 18:00:00 CET 2013
117	root	1.39	- new setting: validate_utf8, for when you can't trust your cbor data.
118			- do not leak memory on decoding errors, when allow_cycles is enabled.
119	root	1.41	- add default filters for tags 0 and 1, using Time::Piece.
120	root	1.42	- more tests added.
121	root	1.30
122	root	1.37	1.1 Sat Nov 30 19:14:27 CET 2013
123	root	1.36	- INCOMPATIBLE CHANGE: new decoder setting: allow_cyclic, needed to decode
124			cyclic data structures (to avoid memleaks in unsuspecting code).
125	root	1.37	- no longer "share" references that aren't, i.e. true/false/null/error/tagged.
126	root	1.32	- fix stringref w.r.t. indefinite-length strings.
127			- verify indefinite-length string chunk types.
128	root	1.35	- do not allow extremely large arrays - assume an array element
129	root	1.37	requires at least one CBOR byte, to avoid memory exhaustion attacks.
130	root	1.34	- major code overhaul.
131	root	1.32
132	root	1.31	1.0 Thu Nov 28 16:43:31 CET 2013
133	root	1.28	- use the now official tag values for extensions. remove the
134			experimental notice. it's the real thing now, with real bugs.
135	root	1.29	- renamed allow_stringref to pack_strings.
136	root	1.27	- port to perl <= 5.16.
137	root	1.31	- slightly improve the documentation.
138	root	1.27
139	root	1.25	0.09 Fri Nov 22 16:54:18 CET 2013
140	root	1.24	- bignum/bigfloat/decimal support.
141			- uri support.
142			- tag filter functions support for decoding.
143	root	1.21	- do not support reference-to-1/0/undef anymore, you need to use
144			the Types::Serialiser objects now.
145			- experimental sharable extension support (http://cbor.schmorp.de/value-sharing).
146	root	1.22	- experimental stringref extension support (http://cbor.schmorp.de/stringref).
147	root	1.21	- implement indirection tag (http://cbor.schmorp.de/indirection).
148
149	root	1.20	0.08 Wed Oct 30 11:10:43 CET 2013
150	root	1.19	- defused another too fragile test.
151
152	root	1.18	0.07 Tue Oct 29 23:04:07 CET 2013
153	root	1.17	- don't crash in decode when silly values are passed in.
154			- considerably speed up map decoding when map keys
155			are utf-8 or byte strings.
156	root	1.18	- raising an exception in THAW should now work without
157			leaking.
158	root	1.17
159	root	1.16	0.06 Tue Oct 29 16:56:07 CET 2013
160	root	1.14	- do not leak when deserialiasing via THAW.
161	root	1.15	- implement and document CBOR::XS creation/access/mutate
162			methods.
163	root	1.14
164	root	1.13	0.05 Mon Oct 28 22:27:47 CET 2013
165	root	1.12	- do not leak hash keys on decoding.
166
167	root	1.11	0.04 Sun Oct 27 23:47:47 CET 2013
168	root	1.10	- implement TO_CBOR/FREEZE/THAW serialisation protocols.
169	root	1.7	- requested perl-object and generic-object tags from iana.
170	root	1.9	- switched to Types::Serialiser for true, false and error.
171	root	1.8	- disabled some fragile tests (thanks, andk).
172	root	1.7
173	root	1.6	0.03 Sun Oct 27 00:28:41 CEST 2013
174	root	1.4	- improve 32 bit platform compatibility.
175	root	1.5	- take more advantage of ecb.h.
176	root	1.6	- preliminary and bare-bones tagged support.
177			- improved docs.
178	root	1.4
179	root	1.3	0.02 Sat Oct 26 13:08:05 CEST 2013
180			- no aborts left.
181			- add $CBOR::XS::MAGIC.
182			- preliminary tagged decoding to arrayref.
183	root	1.2	- indefinite encoding fixed.
184			- half float decoding implemented.
185			- t/50_rfc.t adds test vectors from the rfc, which
186			are checked as applicable.
187
188	root	1.1	0.01 Fri Oct 25 21:39:56 CEST 2013
189			- original version; cloned from JSON-XS
190