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Revision: 1.190
Committed: Wed Mar 6 07:21:17 2019 UTC (5 years, 2 months ago) by root
Branch: MAIN
Changes since 1.189: +1 -0 lines
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# Content
1 Revision history for Perl extension JSON::XS
2
3 TODO: maybe detect and croak on more invalid inputs (e.g. +-inf/nan)
4 TODO: maybe avoid the reblessing and better support readonly objects.
5 TODO: how to cope with tagged values and standard json decoders
6 TODO: investigate magic (Eric Brine)
7 TODO: [PATCH] Types::Serialiser: Inline true(), false() and error() functions
8
9 TODO: testcase Wesley Schwengle
10 4.01 Sun Feb 24 05:03:30 CET 2019
11 - fix some stack corruption caused mostly when calling methods
12 in list context (tewstcase by Wesley Schwengle).
13
14 4.0 Fri Nov 16 00:06:54 CET 2018
15 - SECURITY IMPLICATION: this release enables allow_nonref by default
16 for compatibnility with RFC 7159 and newer. See "old" vs. "new"
17 JSON under SECURITY CONSIDERATIONS.
18 - reworked the "old" vs. "new" JSON section.
19 - add ->boolean_values to provide the values to which booleans
20 decode (requested by Aristotle Pagaltzis).
21 - decode would wrongly accept ASCII NUL characters instead of
22 reporting them as trailing garbage.
23 - work around what smells like a perl bug w.r.t. exceptions
24 thrown in callbacks.
25 - incremental parser now more or less respects allow_nonref.
26 - json_xs json-pretty now enables canonical mode.
27 - add documentation section about I-JSON.
28 - minor documentation fixes/updates.
29
30 3.04 Thu Aug 17 04:30:47 CEST 2017
31 - change exponential realloc algorithm on encoding and string decoding to be
32 really exponential (this helps slow/debugging allocators such as libumem)
33 (reported by Matthew Horsfall).
34 - string encoding would needlessly overallocate output space
35 (testcase by Matthew Horsfall).
36 - be very paranoid about extending buffer lengths and croak if buffers get too large,
37 which might (or might not) improve security.
38 - add cbor-packed type to json_xs.
39 - switch from YAML to YAML::XS in json_xs, as YAML is way too buggy and outdated.
40
41 3.03 Wed Nov 16 20:20:59 CET 2016
42 - fix a bug introduced by a perl bug workaround that would cause
43 incremental parsing to fail with a sv_chop panic.
44 - json_xs: toformat failure error message fixed.
45 - json_xs: allow cyclic data structures in CBOR.
46
47 3.02 Fri Feb 26 22:45:20 CET 2016
48 - allow_nonref now affects booleans (\1, $Types::Serialiser::Boolean)
49 as well (reported by Alex Efros).
50 - allow literal tabs in strings in relaxed mode (patch by
51 lubo.rintel@gooddata.com).
52 - support "cbor" format in json_xs tool.
53 - support (and fix) calling encode and decode in list context
54 (reported by Вадим Власов).
55 - work around a bug in older perls crashing when presented
56 with shared hash keys (Reini Urban).
57 - use stability canary.
58
59 3.01 Tue Oct 29 16:55:15 CET 2013
60 - backport to perls < 5.18 (reported by Paul Howarth).
61
62 3.0 Tue Oct 29 01:35:37 CET 2013
63 - implemented an object tagging extension (using the
64 Types::Serialiser serialisation protocol).
65 - reworked the documentation regarding object serialisation,
66 add a new OBJECT SERIALISATION section that explains th
67 whole process.
68 - new setting: allow_tags.
69 - switch to Types::Serialiser booleans.
70 - remove to_json/from_json.
71 - other minor improvements to the documentation.
72
73 2.34 Thu May 23 11:30:34 CEST 2013
74 - work around bugs in perl 5.18 breaking more than 100
75 widely used modules, without a fix in sight because
76 p5pers don't care about CPAN anymore.
77 - when canonicalising, only allocate up to 64 hash key
78 pointers on the stack. for larger hashes, use the heap,
79 to avoid using too much stackspace.
80 - discuss the problem with setlocale (reported by a few victims).
81
82 2.33 Wed Aug 1 21:03:52 CEST 2012
83 - internal encode/decode XS wrappers did not expect stack
84 moves caused by callbacks (analyzed and testcase by Jesse Luehrs).
85 - add bencode as to/from option in bin/json_xs.
86 - add -e option to json_xs, and none and string in/out formats.
87
88 2.32 Thu Aug 11 19:06:38 CEST 2011
89 - fix a bug in the initial whitespace accumulation.
90
91 2.31 Wed Jul 27 17:53:05 CEST 2011
92 - don't accumulate initial whitespace in the incremental buffer
93 (this can be useful to allow whitespace-keepalive on a tcp
94 connection without triggering the max_size limit).
95 - properly croak on some invalid inputs that are not strings
96 (e.g. undef) when trying to decode a json text (reported
97 and analyzed by Goro Fuji).
98
99 2.3 Wed Aug 18 01:26:47 CEST 2010
100 - make sure decoder doesn't change the decoding in the incremental
101 parser (testcase provided by Hendrik Schumacher).
102 - applied patch by DaTa for Data::Dumper support in json_xs.
103 - added -t dump support to json_xs, using Data::Dump.
104 - added -f eval support to json_xs.
105
106 2.29 Wed Mar 17 02:39:12 CET 2010
107 - fix a memory leak when callbacks set using filter_json_object
108 or filter_json_single_key_object were called (great testcase
109 by Eric Wilhelm).
110
111 2.28 Thu Mar 11 20:30:46 CET 2010
112 - implement our own atof function - perl's can be orders of
113 magnitudes slower than even the system one. on the positive
114 side, ours seems to be more exact in general than perl's.
115 (testcase provided by Tim Meadowcroft).
116 - clarify floating point conversion issues a bit.
117 - update jpsykes csrf article url.
118 - updated benchmark section - JSON::PP became much faster!
119
120 2.27 Thu Jan 7 07:35:08 CET 2010
121 - support relaxed option inside the incremental parser
122 (testcase provided by IKEGAMI via Makamaka).
123
124 2.26 Sat Oct 10 03:26:19 CEST 2009
125 - big integers could become truncated (based on patch
126 by Strobl Anton).
127 - output format change: indent now adds a final newline, which is
128 more expected and more true to the documentation.
129
130 2.25 Sat Aug 8 12:04:41 CEST 2009
131 - the perl debugger completely breaks lvalue subs - try to work
132 around the issue.
133 - ignore RMAGICAL hashes w.r.t. CANONICAL.
134 - try to work around a possible char signedness issue on aix.
135 - require common sense.
136
137 2.24 Sat May 30 08:25:45 CEST 2009
138 - the incremental parser did not update its parse offset
139 pointer correctly when parsing utf8-strings (nicely
140 debugged by Martin Evans).
141 - appending a non-utf8-string to the incremental parser
142 in utf8 mode failed to upgrade the string.
143 - wording of parse error messages has been improved.
144
145 2.232 Sun Feb 22 11:12:25 CET 2009
146 - use an exponential algorithm to extend strings, to
147 help platforms with bad or abysmal==windows memory
148 allocater performance, at the expense of some memory
149 wastage (use shrink to recover this extra memory).
150 (nicely analysed by Dmitry Karasik).
151
152 2.2311 Thu Feb 19 02:12:54 CET 2009
153 - add a section "JSON and ECMAscript" to explain some
154 incompatibilities between the two (problem was noted by
155 various people).
156 - add t/20_faihu.t.
157
158 2.231 Thu Nov 20 04:59:08 CET 2008
159 - work around 5.10.0 magic bugs where manipulating magic values
160 (such as $1) would permanently damage them as perl would
161 ignore the magicalness, by making a full copy of the string,
162 reported by Dmitry Karasik.
163 - work around spurious warnings under older perl 5.8's.
164
165 2.23 Mon Sep 29 05:08:29 CEST 2008
166 - fix a compilation problem when perl is not using char * as, well,
167 char *.
168 - use PL_hexdigit in favour of rolling our own.
169
170 2.2222 Sun Jul 20 18:49:00 CEST 2008
171 - same game again, broken 5.10 finds yet another assertion
172 failure, and the workaround causes additional runtime warnings.
173 Work around the next assertion AND the warning. 5.10 seriously
174 needs to adjust it's attitude against working code.
175
176 2.222 Sat Jul 19 06:15:34 CEST 2008
177 - you work around one -DDEBUGGING assertion bug in perl 5.10
178 just to hit the next one. work around this one, too.
179
180 2.22 Tue Jul 15 13:26:51 CEST 2008
181 - allow higher nesting levels in incremental parser.
182 - error out earlier in some cases in the incremental parser
183 (as suggested by Yuval Kogman).
184 - improve incr-parser test (Yuval Kogman).
185
186 2.21 Tue Jun 3 08:43:23 CEST 2008
187 - (hopefully) work around a perl 5.10 bug with -DDEBUGGING.
188 - remove the experimental status of the incremental parser interface.
189 - move =encoding around again, to avoid bugs with search.cpan.org.
190 when can we finally have utf-8 in pod???
191 - add ->incr_reset method.
192
193 2.2 Wed Apr 16 20:37:25 CEST 2008
194 - lifted the log2 rounding restriction of max_depth and max_size.
195 - make booleans mutable by creating a copy instead of handing out
196 the same scalar (reported by pasha sadri).
197 - added support for incremental json parsing (still EXPERIMENTAL).
198 - implemented and added a json_xs command line utility that can convert
199 from/to a number of serialisation formats - tell me if you need more.
200 - implement allow_unknown/get_allow_unknown methods.
201 - fixed documentation of max_depth w.r.t. higher and equal.
202 - moved down =encoding directive a bit, too much breaks if it's the first
203 pod directive :/.
204 - removed documentation section on other modules, it became somewhat
205 outdated and is nowadays mostly of historical interest.
206
207 2.1 Wed Mar 19 23:23:18 CET 2008
208 - update documentation here and there: add a large section
209 about utf8/latin1/ascii flags, add a security consideration
210 and extend and clarify the JSON and YAML section.
211 - medium speed enhancements when encoding/decoding non-ascii chars.
212 - minor speedup in number encoding case.
213 - extend and clarify the section on incompatibilities
214 between YAML and JSON.
215 - switch to static inline from just inline when using gcc.
216 - add =encoding utf-8 to the manpage, now that perl 5.10 supports it.
217 - fix some issues with UV to JSON conversion of unknown impact.
218 - published the yahoo locals search result used in benchmarks as the
219 original url changes so comparison is impossible.
220
221 2.01 Wed Dec 5 11:40:28 CET 2007
222 - INCOMPATIBLE API CHANGE: to_json and from_json have been
223 renamed to encode_json/decode_json for JSON.pm compatibility.
224 The old functions croak and might be replaced by JSON.pm
225 comaptible versions in some later release.
226
227 2.0 Tue Dec 4 11:30:46 CET 2007
228 - this is supposed to be the first version of JSON::XS
229 compatible with version 2.0+ of the JSON module.
230 Using the JSON module as frontend to JSON::XS should be
231 as fast as using JSON::XS directly, so consider using it
232 instead.
233 - added get_* methods for all "simple" options.
234 - make JSON::XS subclassable.
235
236 1.53 Tue Nov 13 23:58:33 CET 2007
237 - minor doc clarifications.
238 - fixed many doc typos (patch by Thomas L. Shinnick).
239
240 1.52 Mon Oct 15 03:22:06 CEST 2007
241 - remove =encoding pod directive again, it confuses too many pod
242 parsers :/.
243
244 1.51 Sat Oct 13 03:55:56 CEST 2007
245 - encode empty arrays/hashes in a compact way when pretty is enabled.
246 - apparently JSON::XS was used to find some bugs in the
247 JSON_checker testsuite, so add (the corrected) JSON_checker tests to
248 the testsuite.
249 - quite a bit of doc updates/extension.
250 - require 5.8.2, as this seems to be the first unicode-stable version.
251
252 1.5 Tue Aug 28 04:05:38 CEST 2007
253 - add support for tied hashes, based on ideas and testcase by
254 Marcus Holland-Moritz.
255 - implemented relaxed parsing mode where some extensions are being
256 accepted. generation is still JSON-only.
257
258 1.44 Wed Aug 22 01:02:44 CEST 2007
259 - very experimental process-emulation support, slowing everything down.
260 the horribly broken perl threads are still not supported - YMMV.
261
262 1.43 Thu Jul 26 13:26:37 CEST 2007
263 - convert big json numbers exclusively consisting of digits to NV
264 only when there is no loss of precision, otherwise to string.
265
266 1.42 Tue Jul 24 00:51:18 CEST 2007
267 - fix a crash caused by not handling missing array elements
268 (report and testcase by Jay Kuri).
269
270 1.41 Tue Jul 10 18:21:44 CEST 2007
271 - fix compilation with NDEBUG (assert side-effect),
272 affects convert_blessed only.
273 - fix a bug in decode filters calling ENTER; SAVETMPS;
274 one time too often.
275 - catch a typical error in TO_JSON methods.
276 - antique-ised XS.xs again to work with outdated
277 C compilers (windows...).
278
279 1.4 Mon Jul 2 10:06:30 CEST 2007
280 - add convert_blessed setting.
281 - encode did not catch all blessed objects, encoding their
282 contents in most cases. This has been fixed by introducing
283 the allow_blessed setting.
284 - added filter_json_object and filter_json_single_key_object
285 settings that specify a callback to be called when
286 all/specific json objects are encountered.
287 - assume that most object keys are simple ascii words and
288 optimise this case, penalising the general case. This can
289 speed up decoding by 30% in typical cases and gives
290 a smaller and faster perl hash.
291 - implemented simpleminded, optional resource size checking
292 in decode_json.
293 - remove objToJson/jsonToObj aliases, as the next version
294 of JSON will not have them either.
295 - bit the bullet and converted the very simple json object
296 into a more complex one.
297 - work around a bug where perl wrongly claims an integer
298 is not an integer.
299 - unbundle JSON::XS::Boolean into own pm file so Storable
300 and similar modules can resolve the overloading when thawing.
301
302 1.3 Sun Jun 24 01:55:02 CEST 2007
303 - make JSON::XS::true and false special overloaded objects
304 and return those instead of 1 and 0 for those json atoms
305 (JSON::PP compatibility is NOT achieved yet).
306 - add JSON::XS::is_bool predicate to test for those special
307 values.
308 - add a reference to
309 http://jpsykes.com/47/practical-csrf-and-json-security.
310 - removed require 5.8.8 again, it is just not very expert-friendly.
311 Also try to be more compatible with slightly older versions,
312 which are not recommended (because they are buggy).
313
314 1.24 Mon Jun 11 05:40:49 CEST 2007
315 - added informative section on JSON-as-YAML.
316 - get rid of some c99-isms again.
317 - localise dec->cur in decode_str, speeding up
318 string decoding considerably (>15% on my amd64 + gcc).
319 - increased SHORT_STRING_LEN to 16kb: stack space is
320 usually plenty, and this actually saves memory
321 when !shrinking as short strings will fit perfectly.
322
323 1.23 Wed Jun 6 20:13:06 CEST 2007
324 - greatly improved small integer encoding and decoding speed.
325 - implement a number of µ-optimisations.
326 - updated benchmarks.
327
328 1.22 Thu May 24 00:07:25 CEST 2007
329 - require 5.8.8 explicitly as older perls do not seem to offer
330 the required macros.
331 - possibly made it compile on so-called C compilers by microsoft.
332
333 1.21 Wed May 9 18:40:32 CEST 2007
334 - character offset reported for trailing garbage was random.
335
336 1.2 Wed May 9 18:35:01 CEST 2007
337 - decode did not work with magical scalars (doh!).
338 - added latin1 flag to produce JSON texts in the latin1 subset
339 of unicode.
340 - flag trailing garbage as error.
341 - new decode_prefix method that returns the number
342 of characters consumed by a decode.
343 - max octets/char in perls UTF-X is actually 13, not 11,
344 as pointed out by Glenn Linderman.
345 - fixed typoe reported by YAMASHINA Hio.
346
347 1.11 Mon Apr 9 07:05:49 CEST 2007
348 - properly 0-terminate sv's returned by encode to help
349 C libraries that expect that 0 to be there.
350 - partially "port" JSON from C to microsofts fucking broken
351 pseudo-C. They should be burned to the ground for pissing
352 on standards. And I should be stoned for even trying to
353 support this filthy excuse for a c compiler.
354
355 1.1 Wed Apr 4 01:45:00 CEST 2007
356 - clarify documentation (pointed out by Quinn Weaver).
357 - decode_utf8 sometimes did not correctly flag errors,
358 leading to segfaults.
359 - further reduced default nesting depth to 512 due to the test
360 failure by that anonymous "chris" whose e-mail address seems
361 to be impossible to get. Tests on other freebsd systems indicate
362 that this is likely a problem in his/her configuration and not this
363 module.
364 - renamed json => JSON in error messages.
365 - corrected the character offset in some error messages.
366
367 1.01 Sat Mar 31 16:15:40 CEST 2007
368 - do not segfault when from_json/decode gets passed
369 a non-string object (reported by Florian Ragwitz).
370 This has no effect on normal operation.
371
372 1.0 Thu Mar 29 04:43:34 CEST 2007
373 - the long awaited (by me) 1.0 version.
374 - add \0 (JSON::XS::false) and \1 (JSON::XS::true) mappings to JSON
375 true and false.
376 - add some more notes to shrink, as suggested by Alex Efros.
377 - improve testsuite.
378 - halve the default nesting depth limit, to hopefully make it
379 work on Freebsd (unfortunately, the cpan tester did not
380 send me his report, so I cannot ask about the stack limit on fbsd).
381
382 0.8 Mon Mar 26 00:10:48 CEST 2007
383 - fix a memleak when decoding hashes.
384 - export jsonToBj and objToJson as aliases
385 to to_json and from_json, to reduce incompatibilities
386 between JSON/JSON::PC and JSON::XS. (experimental).
387 - implement a maximum nesting depth for both en- and de-coding.
388 - added a security considerations sections.
389
390 0.7 Sun Mar 25 01:46:30 CET 2007
391 - code cleanup.
392 - fix a memory overflow bug when indenting.
393 - pretty-printing now up to 15% faster.
394 - improve decoding speed of strings by
395 up to 50% by specialcasing short strings.
396 - further decoding speedups for strings using
397 lots of \u escapes.
398 - improve utf8 decoding speed for U+80 .. U+7FF.
399
400 0.5 Sat Mar 24 20:41:51 CET 2007
401 - added the UTF-16 encoding example hinted at in previous
402 versions.
403 - minor documentation fixes.
404 - fix a bug in and optimise canonicalising fastpath
405 (reported by Craig Manley).
406 - remove a subtest that breaks with bleadperl (reported
407 by Andreas König).
408
409 0.31 Sat Mar 24 02:14:34 CET 2007
410 - documentation updates.
411 - do some casting to hopefully fix Andreas' problem.
412 - nuke bogus json rpc stuff.
413
414 0.3 Fri Mar 23 19:33:21 CET 2007
415 - remove spurious PApp::Util reference (John McNamara).
416 - adapted lots of tests from other json modules
417 (idea by Chris Carline).
418 - documented mapping from json to perl and vice versa.
419 - improved the documentation by adding more examples.
420 - added short escaping forms, reducing the created
421 json texts a bit.
422 - added shrink flag.
423 - when flag methods are called without enable argument
424 they will by default enable their flag.
425 - considerably improved string encoding speed (at least
426 with gcc 4).
427 - added a test that covers lots of different characters.
428 - clarified some error messages.
429 - error messages now use correct character offset
430 with F_UTF8.
431 - improve the "no bytes" and "no warnings" hacks in
432 case the called functions do... stuff.
433 - croak when encoding to ascii and an out-of-range
434 (non-unicode) codepoint is encountered.
435
436 0.2 Fri Mar 23 00:23:34 CET 2007
437 - the "could not sleep without debugging release".
438 it should basically work now, with many bugs as
439 no production tests have been run yet.
440 - added more testcases.
441 - the expected shitload of bugfixes.
442 - handle utf8 flag correctly in decode.
443 - fix segfault in decoder.
444 - utf8n_to_uvuni sets retlen to -1, but retlen is an
445 unsigned types (argh).
446 - fix decoding of utf-8 strings.
447 - improved error diagnostics.
448 - fix decoding of 'null'.
449 - fix parsing of empty array/hashes
450 - silence warnings when we prepare the croak message.
451
452 0.1 Thu Mar 22 22:13:43 CET 2007
453 - first release, very untested, basically just to claim
454 the namespace.
455
456 0.01 Thu Mar 22 06:08:12 CET 2007
457 - original version; cloned from Convert-Scalar
458