[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?

1.81 Tue Dec  1 02:47:40 CET 2020
        - add CBOR::XS::as_bool cast function.

1.81 Mon Nov 30 19:29:33 CET 2020
        - cast functions were broken due to last-minute renaming. thats
          what you get for not having 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:	1.84
Committed:	Tue Dec 1 01:49:47 2020 UTC (3 years, 5 months ago) by root
Branch:	MAIN
Changes since 1.83:	+5 -3 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	1.84
11			1.81 Tue Dec 1 02:47:40 CET 2020
12			- add CBOR::XS::as_bool cast function.
13	root	1.81
14	root	1.82	1.81 Mon Nov 30 19:29:33 CET 2020
15	root	1.84	- cast functions were broken due to last-minute renaming. thats
16			what you get for not having a tessuite.
17	root	1.81	- Math::BigInt and Math::BigFloat are pretty broken (again),
18			so disable some tests. (try printing the bigfloat
19			799999999999999999998E99999999999999999998).
20	root	1.79
21	root	1.80	1.8 Sun Nov 29 22:35:13 CET 2020
22	root	1.79	- experimental support for some type casts, as well as embedding
23			raw cbor data.
24	root	1.76
25	root	1.78	1.71 Thu Nov 15 20:52:13 CET 2018
26			- work around what smells like a perl bug w.r.t. exceptions
27			thrown in callbacks.
28			- update libecb.
29
30	root	1.77	1.7 Tue Jun 27 04:02:23 CEST 2017
31			- SECURITY FIX: fix two bugs found by american fuzzy lop,
32			upgrade is advised if you accept data from untrusted
33			sources.
34			- an out-of bound sharedref or stringref index could cause an
35			out of bounds access - might be exploitable.
36			- a decoding error during indefinite array or hash decoding
37			could cause an endless loop.
38
39	root	1.76	1.6 Wed Dec 7 15:13:23 CET 2016
40	root	1.75	- greatly expand the SECURITY IMPLICATIONS and similar sections.
41	root	1.74	- new constructor new_safe, to create a secure CBOR::XS object.
42			- new option forbid_objects, to disallow serialisation.
43			- new CBOR::XS::safe_filter functionality.
44	root	1.69	- fix a crash when decoding a cyclic data structure using
45			stringref/pack_strings when allow_cycles is disabled.
46	root	1.71	- fix a crash when decoding hash keys with length >= 2**31.
47			- avoid unreasonably long decoding times for certain
48	root	1.75	types of (corrupt) cbor texts.
49	root	1.71	- support arrays and hashes with >= 2**31 members.
50			- avoid overflow on pointer arithmetic when checking whether enough
51			data is available.
52	root	1.72	- fix a memory leak that occured when decoding failed while decoding
53			a tagged value.
54	root	1.73	- do not leak the partially constructed result when stringifying
55			a hash key throws an exception.
56	root	1.74	- various code size and efficiency optimizations (reduced code
57	root	1.75	from 42 to 40kB on my system, despite the new features).
58	root	1.46
59	root	1.67	1.5 Wed Apr 27 11:38:39 CEST 2016
60	root	1.61	- Math::BigFloat madness workaround, see
61			http://blog.schmorp.de/2016-04-23-mathbigfloat-maintainer-fail.html
62	root	1.57	(bugreport by zdm@softvisio.net).
63	root	1.61	- add text_keys and text_strings options to force CBOR text encoding
64			for perl hash keys or all strings, as a result of discussions
65			with Fredrik Ljunggren.
66	root	1.64	- implement support for arbitrary-exponent numbers (see
67			http://peteroupc.github.io/CBOR/bigfrac.html, tags 264 and 265)
68			for both en- and decoding.
69	root	1.65	- implement support for rational numbers (see
70			http://peteroupc.github.io/CBOR/rational.html, tag 30) for both
71			en- and decoding.
72	root	1.67	- the above effectively implements all registered CBOR extensions
73	root	1.66	in a sensible manner.
74	root	1.67	- remove some weird dead code that was duplicated (%FILTER).
75	root	1.60	- add t/58_hv.t, which tests hashes and the new text_* flags.
76	root	1.67	hashes apparently were not encoded at all in any of the existing
77	root	1.60	tests.
78	root	1.67	- document Math::BigFloat base-2 performance/crash issues.
79	root	1.62	- use stability canary.
80	root	1.57
81	root	1.56	1.41 Thu 25 Feb 15:22:03 CET 2016
82			- avoid perl panics on nested FREEZE/THAW calls (testcase by
83			Victor Efimov).
84
85	root	1.54	1.4 Mon Feb 8 05:10:15 CET 2016
86			- buffer overflow fix: a fast path during decoding did not check
87			remaining length when decoding hash keys, found by fuzzing.
88	root	1.55	This can potentially leak information in the error message
89			or crash the process.
90	root	1.53	- use C style { 0 } struct initializer.
91	root	1.54	- upgrade libecb.
92	root	1.53
93	root	1.52	1.3 Mon Apr 27 22:21:04 CEST 2015
94			- the incremental parser didn't properly parse tagged values
95			(testcase by Mons Anderson).
96	root	1.50	- slightly speed up encoding of plain (nonmagical) arrays.
97	root	1.51	- try to clarify further that effectively all 32 bit architectures
98			have 64 bit integer support.
99	root	1.52	- upgrade libecb.
100	root	1.50
101	root	1.49	1.26 Sat Oct 25 08:35:44 CEST 2014
102	root	1.47	- update the t/57_incr.t subtest that would rely on 64 bit ints.
103	root	1.48	- disable t/50_rfc.t test that fails because of broken data::dumper.
104	root	1.47
105	root	1.46	1.25 Sun Jan 5 15:19:14 CET 2014
106			- map key decoding was pretty much botched due to the recent cleanups.
107			- work around Time::Piece->epoch returning a string value, avoid encoding
108			this as a tag 1 string.
109			- enable more testcases in t/50_rfc.t, now that they work :)
110
111			1.2 Tue Dec 10 22:06:42 CET 2013
112			- implement an incremental decoder.
113	root	1.39
114	root	1.44	1.12 Tue Dec 3 11:23:22 CET 2013
115	root	1.45	- work around broken Time::Piece (in old versions of the module, %z doesn't
116			work as documented, gives different results on different platforms(!)).
117	root	1.43
118	root	1.42	1.11 Sun Dec 1 18:00:00 CET 2013
119	root	1.39	- new setting: validate_utf8, for when you can't trust your cbor data.
120			- do not leak memory on decoding errors, when allow_cycles is enabled.
121	root	1.41	- add default filters for tags 0 and 1, using Time::Piece.
122	root	1.42	- more tests added.
123	root	1.30
124	root	1.37	1.1 Sat Nov 30 19:14:27 CET 2013
125	root	1.36	- INCOMPATIBLE CHANGE: new decoder setting: allow_cyclic, needed to decode
126			cyclic data structures (to avoid memleaks in unsuspecting code).
127	root	1.37	- no longer "share" references that aren't, i.e. true/false/null/error/tagged.
128	root	1.32	- fix stringref w.r.t. indefinite-length strings.
129			- verify indefinite-length string chunk types.
130	root	1.35	- do not allow extremely large arrays - assume an array element
131	root	1.37	requires at least one CBOR byte, to avoid memory exhaustion attacks.
132	root	1.34	- major code overhaul.
133	root	1.32
134	root	1.31	1.0 Thu Nov 28 16:43:31 CET 2013
135	root	1.28	- use the now official tag values for extensions. remove the
136			experimental notice. it's the real thing now, with real bugs.
137	root	1.29	- renamed allow_stringref to pack_strings.
138	root	1.27	- port to perl <= 5.16.
139	root	1.31	- slightly improve the documentation.
140	root	1.27
141	root	1.25	0.09 Fri Nov 22 16:54:18 CET 2013
142	root	1.24	- bignum/bigfloat/decimal support.
143			- uri support.
144			- tag filter functions support for decoding.
145	root	1.21	- do not support reference-to-1/0/undef anymore, you need to use
146			the Types::Serialiser objects now.
147			- experimental sharable extension support (http://cbor.schmorp.de/value-sharing).
148	root	1.22	- experimental stringref extension support (http://cbor.schmorp.de/stringref).
149	root	1.21	- implement indirection tag (http://cbor.schmorp.de/indirection).
150
151	root	1.20	0.08 Wed Oct 30 11:10:43 CET 2013
152	root	1.19	- defused another too fragile test.
153
154	root	1.18	0.07 Tue Oct 29 23:04:07 CET 2013
155	root	1.17	- don't crash in decode when silly values are passed in.
156			- considerably speed up map decoding when map keys
157			are utf-8 or byte strings.
158	root	1.18	- raising an exception in THAW should now work without
159			leaking.
160	root	1.17
161	root	1.16	0.06 Tue Oct 29 16:56:07 CET 2013
162	root	1.14	- do not leak when deserialiasing via THAW.
163	root	1.15	- implement and document CBOR::XS creation/access/mutate
164			methods.
165	root	1.14
166	root	1.13	0.05 Mon Oct 28 22:27:47 CET 2013
167	root	1.12	- do not leak hash keys on decoding.
168
169	root	1.11	0.04 Sun Oct 27 23:47:47 CET 2013
170	root	1.10	- implement TO_CBOR/FREEZE/THAW serialisation protocols.
171	root	1.7	- requested perl-object and generic-object tags from iana.
172	root	1.9	- switched to Types::Serialiser for true, false and error.
173	root	1.8	- disabled some fragile tests (thanks, andk).
174	root	1.7
175	root	1.6	0.03 Sun Oct 27 00:28:41 CEST 2013
176	root	1.4	- improve 32 bit platform compatibility.
177	root	1.5	- take more advantage of ecb.h.
178	root	1.6	- preliminary and bare-bones tagged support.
179			- improved docs.
180	root	1.4
181	root	1.3	0.02 Sat Oct 26 13:08:05 CEST 2013
182			- no aborts left.
183			- add $CBOR::XS::MAGIC.
184			- preliminary tagged decoding to arrayref.
185	root	1.2	- indefinite encoding fixed.
186			- half float decoding implemented.
187			- t/50_rfc.t adds test vectors from the rfc, which
188			are checked as applicable.
189
190	root	1.1	0.01 Fri Oct 25 21:39:56 CEST 2013
191			- original version; cloned from JSON-XS
192