… | |
… | |
24 | |
24 | |
25 | // known tags |
25 | // known tags |
26 | enum cbor_tag |
26 | enum cbor_tag |
27 | { |
27 | { |
28 | // inofficial extensions (pending iana registration) |
28 | // inofficial extensions (pending iana registration) |
29 | CBOR_TAG_PERL_OBJECT = 256, |
29 | CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object |
30 | CBOR_TAG_GENERIC_OBJECT = 257, |
30 | CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object |
|
|
31 | CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing |
|
|
32 | CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing |
|
|
33 | CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref |
|
|
34 | CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref |
|
|
35 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
31 | |
36 | |
32 | // rfc7049 |
37 | // rfc7049 |
33 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
38 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
34 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
39 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
35 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
40 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
… | |
… | |
49 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
54 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
50 | |
55 | |
51 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
56 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
52 | }; |
57 | }; |
53 | |
58 | |
54 | #define F_SHRINK 0x00000200UL |
59 | #define F_SHRINK 0x00000001UL |
55 | #define F_ALLOW_UNKNOWN 0x00002000UL |
60 | #define F_ALLOW_UNKNOWN 0x00000002UL |
|
|
61 | #define F_ALLOW_SHARING 0x00000004UL //TODO |
|
|
62 | #define F_ALLOW_STRINGREF 0x00000008UL //TODO |
56 | |
63 | |
57 | #define INIT_SIZE 32 // initial scalar size to be allocated |
64 | #define INIT_SIZE 32 // initial scalar size to be allocated |
58 | |
65 | |
59 | #define SB do { |
66 | #define SB do { |
60 | #define SE } while (0) |
67 | #define SE } while (0) |
… | |
… | |
72 | # define CBOR_SLOW 0 |
79 | # define CBOR_SLOW 0 |
73 | # define CBOR_STASH cbor_stash |
80 | # define CBOR_STASH cbor_stash |
74 | #endif |
81 | #endif |
75 | |
82 | |
76 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
83 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
77 | static SV *types_true, *types_false, *types_error, *sv_cbor; |
84 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
78 | |
85 | |
79 | typedef struct { |
86 | typedef struct { |
80 | U32 flags; |
87 | U32 flags; |
81 | U32 max_depth; |
88 | U32 max_depth; |
82 | STRLEN max_size; |
89 | STRLEN max_size; |
|
|
90 | SV *filter; |
83 | } CBOR; |
91 | } CBOR; |
84 | |
92 | |
85 | ecb_inline void |
93 | ecb_inline void |
86 | cbor_init (CBOR *cbor) |
94 | cbor_init (CBOR *cbor) |
87 | { |
95 | { |
88 | Zero (cbor, 1, CBOR); |
96 | Zero (cbor, 1, CBOR); |
89 | cbor->max_depth = 512; |
97 | cbor->max_depth = 512; |
|
|
98 | } |
|
|
99 | |
|
|
100 | ecb_inline void |
|
|
101 | cbor_free (CBOR *cbor) |
|
|
102 | { |
|
|
103 | SvREFCNT_dec (cbor->filter); |
90 | } |
104 | } |
91 | |
105 | |
92 | ///////////////////////////////////////////////////////////////////////////// |
106 | ///////////////////////////////////////////////////////////////////////////// |
93 | // utility functions |
107 | // utility functions |
94 | |
108 | |
… | |
… | |
116 | SvPV_renew (sv, SvCUR (sv) + 1); |
130 | SvPV_renew (sv, SvCUR (sv) + 1); |
117 | #endif |
131 | #endif |
118 | } |
132 | } |
119 | } |
133 | } |
120 | |
134 | |
121 | ///////////////////////////////////////////////////////////////////////////// |
135 | // minimum length of a string to be registered for stringref |
122 | // fp hell |
136 | ecb_inline int |
123 | |
137 | minimum_string_length (UV idx) |
124 | //TODO |
138 | { |
|
|
139 | return idx > 23 |
|
|
140 | ? idx > 0xffU |
|
|
141 | ? idx > 0xffffU |
|
|
142 | ? idx > 0xffffffffU |
|
|
143 | ? 7 |
|
|
144 | : 6 |
|
|
145 | : 5 |
|
|
146 | : 4 |
|
|
147 | : 3; |
|
|
148 | } |
125 | |
149 | |
126 | ///////////////////////////////////////////////////////////////////////////// |
150 | ///////////////////////////////////////////////////////////////////////////// |
127 | // encoder |
151 | // encoder |
128 | |
152 | |
129 | // structure used for encoding CBOR |
153 | // structure used for encoding CBOR |
… | |
… | |
132 | char *cur; // SvPVX (sv) + current output position |
156 | char *cur; // SvPVX (sv) + current output position |
133 | char *end; // SvEND (sv) |
157 | char *end; // SvEND (sv) |
134 | SV *sv; // result scalar |
158 | SV *sv; // result scalar |
135 | CBOR cbor; |
159 | CBOR cbor; |
136 | U32 depth; // recursion level |
160 | U32 depth; // recursion level |
|
|
161 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
|
|
162 | UV stringref_idx; |
|
|
163 | HV *shareable; // ptr => index, or 0 |
|
|
164 | UV shareable_idx; |
137 | } enc_t; |
165 | } enc_t; |
138 | |
166 | |
139 | ecb_inline void |
167 | ecb_inline void |
140 | need (enc_t *enc, STRLEN len) |
168 | need (enc_t *enc, STRLEN len) |
141 | { |
169 | { |
… | |
… | |
193 | *enc->cur++ = len >> 8; |
221 | *enc->cur++ = len >> 8; |
194 | *enc->cur++ = len; |
222 | *enc->cur++ = len; |
195 | } |
223 | } |
196 | } |
224 | } |
197 | |
225 | |
|
|
226 | ecb_inline void |
|
|
227 | encode_tag (enc_t *enc, UV tag) |
|
|
228 | { |
|
|
229 | encode_uint (enc, 0xc0, tag); |
|
|
230 | } |
|
|
231 | |
198 | static void |
232 | static void |
199 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
233 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
200 | { |
234 | { |
|
|
235 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_STRINGREF)) |
|
|
236 | { |
|
|
237 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
|
|
238 | |
|
|
239 | if (SvOK (*svp)) |
|
|
240 | { |
|
|
241 | // already registered, use stringref |
|
|
242 | encode_tag (enc, CBOR_TAG_STRINGREF); |
|
|
243 | encode_uint (enc, 0x00, SvUV (*svp)); |
|
|
244 | return; |
|
|
245 | } |
|
|
246 | else if (len >= minimum_string_length (enc->stringref_idx)) |
|
|
247 | { |
|
|
248 | // register only |
|
|
249 | sv_setuv (*svp, enc->stringref_idx); |
|
|
250 | ++enc->stringref_idx; |
|
|
251 | } |
|
|
252 | } |
|
|
253 | |
201 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
254 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
202 | need (enc, len); |
255 | need (enc, len); |
203 | memcpy (enc->cur, str, len); |
256 | memcpy (enc->cur, str, len); |
204 | enc->cur += len; |
257 | enc->cur += len; |
205 | } |
258 | } |
… | |
… | |
263 | |
316 | |
264 | // encode objects, arrays and special \0=false and \1=true values. |
317 | // encode objects, arrays and special \0=false and \1=true values. |
265 | static void |
318 | static void |
266 | encode_rv (enc_t *enc, SV *sv) |
319 | encode_rv (enc_t *enc, SV *sv) |
267 | { |
320 | { |
268 | svtype svt; |
|
|
269 | |
|
|
270 | SvGETMAGIC (sv); |
321 | SvGETMAGIC (sv); |
|
|
322 | |
|
|
323 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING) |
|
|
324 | && ecb_expect_false (SvREFCNT (sv) > 1)) |
|
|
325 | { |
|
|
326 | if (!enc->shareable) |
|
|
327 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
328 | |
|
|
329 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
330 | |
|
|
331 | if (SvOK (*svp)) |
|
|
332 | { |
|
|
333 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
334 | encode_uint (enc, 0x00, SvUV (*svp)); |
|
|
335 | return; |
|
|
336 | } |
|
|
337 | else |
|
|
338 | { |
|
|
339 | sv_setuv (*svp, enc->shareable_idx); |
|
|
340 | ++enc->shareable_idx; |
|
|
341 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
342 | } |
|
|
343 | } |
|
|
344 | |
271 | svt = SvTYPE (sv); |
345 | svtype svt = SvTYPE (sv); |
272 | |
346 | |
273 | if (ecb_expect_false (SvOBJECT (sv))) |
347 | if (ecb_expect_false (SvOBJECT (sv))) |
274 | { |
348 | { |
275 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
349 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
276 | ? types_boolean_stash |
350 | ? types_boolean_stash |
… | |
… | |
336 | |
410 | |
337 | // catch this surprisingly common error |
411 | // catch this surprisingly common error |
338 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
412 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
339 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
413 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
340 | |
414 | |
341 | encode_uint (enc, 0xc0, CBOR_TAG_PERL_OBJECT); |
415 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
342 | encode_uint (enc, 0x80, count + 1); |
416 | encode_uint (enc, 0x80, count + 1); |
343 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
417 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
344 | |
418 | |
345 | while (count) |
419 | while (count) |
346 | encode_sv (enc, SP[1 - count--]); |
420 | encode_sv (enc, SP[1 - count--]); |
… | |
… | |
355 | } |
429 | } |
356 | else if (svt == SVt_PVHV) |
430 | else if (svt == SVt_PVHV) |
357 | encode_hv (enc, (HV *)sv); |
431 | encode_hv (enc, (HV *)sv); |
358 | else if (svt == SVt_PVAV) |
432 | else if (svt == SVt_PVAV) |
359 | encode_av (enc, (AV *)sv); |
433 | encode_av (enc, (AV *)sv); |
360 | else if (svt < SVt_PVAV) |
|
|
361 | { |
|
|
362 | STRLEN len = 0; |
|
|
363 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
364 | |
|
|
365 | if (len == 1 && *pv == '1') |
|
|
366 | encode_ch (enc, 0xe0 | 21); |
|
|
367 | else if (len == 1 && *pv == '0') |
|
|
368 | encode_ch (enc, 0xe0 | 20); |
|
|
369 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
370 | encode_ch (enc, 0xe0 | 23); |
|
|
371 | else |
|
|
372 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
373 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
374 | } |
|
|
375 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
376 | encode_ch (enc, 0xe0 | 23); |
|
|
377 | else |
434 | else |
378 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
435 | { |
379 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
436 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
437 | encode_sv (enc, sv); |
|
|
438 | } |
380 | } |
439 | } |
381 | |
440 | |
382 | static void |
441 | static void |
383 | encode_nv (enc_t *enc, SV *sv) |
442 | encode_nv (enc_t *enc, SV *sv) |
384 | { |
443 | { |
… | |
… | |
449 | } |
508 | } |
450 | |
509 | |
451 | static SV * |
510 | static SV * |
452 | encode_cbor (SV *scalar, CBOR *cbor) |
511 | encode_cbor (SV *scalar, CBOR *cbor) |
453 | { |
512 | { |
454 | enc_t enc; |
513 | enc_t enc = { }; |
455 | |
514 | |
456 | enc.cbor = *cbor; |
515 | enc.cbor = *cbor; |
457 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
516 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
458 | enc.cur = SvPVX (enc.sv); |
517 | enc.cur = SvPVX (enc.sv); |
459 | enc.end = SvEND (enc.sv); |
518 | enc.end = SvEND (enc.sv); |
460 | enc.depth = 0; |
|
|
461 | |
519 | |
462 | SvPOK_only (enc.sv); |
520 | SvPOK_only (enc.sv); |
|
|
521 | |
|
|
522 | if (cbor->flags & F_ALLOW_STRINGREF) |
|
|
523 | { |
|
|
524 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
525 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
526 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
527 | } |
|
|
528 | |
463 | encode_sv (&enc, scalar); |
529 | encode_sv (&enc, scalar); |
464 | |
530 | |
465 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
531 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
466 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
532 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
467 | |
533 | |
… | |
… | |
481 | U8 *end; // end of input string |
547 | U8 *end; // end of input string |
482 | const char *err; // parse error, if != 0 |
548 | const char *err; // parse error, if != 0 |
483 | CBOR cbor; |
549 | CBOR cbor; |
484 | U32 depth; // recursion depth |
550 | U32 depth; // recursion depth |
485 | U32 maxdepth; // recursion depth limit |
551 | U32 maxdepth; // recursion depth limit |
|
|
552 | AV *shareable; |
|
|
553 | AV *stringref; |
|
|
554 | SV *decode_tagged; |
486 | } dec_t; |
555 | } dec_t; |
487 | |
556 | |
488 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
557 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
489 | |
558 | |
490 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
559 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
… | |
… | |
588 | |
657 | |
589 | static void |
658 | static void |
590 | decode_he (dec_t *dec, HV *hv) |
659 | decode_he (dec_t *dec, HV *hv) |
591 | { |
660 | { |
592 | // for speed reasons, we specialcase single-string |
661 | // for speed reasons, we specialcase single-string |
593 | // byte or utf-8 strings as keys. |
662 | // byte or utf-8 strings as keys, but only when !stringref |
594 | |
663 | |
|
|
664 | if (ecb_expect_true (!dec->stringref)) |
595 | if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
665 | if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
596 | { |
666 | { |
597 | I32 len = decode_uint (dec); |
667 | I32 len = decode_uint (dec); |
598 | char *key = (char *)dec->cur; |
668 | char *key = (char *)dec->cur; |
599 | |
669 | |
600 | dec->cur += len; |
670 | dec->cur += len; |
601 | |
671 | |
|
|
672 | if (ecb_expect_false (dec->stringref)) |
|
|
673 | av_push (dec->stringref, newSVpvn (key, len)); |
|
|
674 | |
602 | hv_store (hv, key, len, decode_sv (dec), 0); |
675 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
676 | |
|
|
677 | return; |
603 | } |
678 | } |
604 | else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
679 | else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
605 | { |
680 | { |
606 | I32 len = decode_uint (dec); |
681 | I32 len = decode_uint (dec); |
607 | char *key = (char *)dec->cur; |
682 | char *key = (char *)dec->cur; |
608 | |
683 | |
609 | dec->cur += len; |
684 | dec->cur += len; |
610 | |
685 | |
|
|
686 | if (ecb_expect_false (dec->stringref)) |
|
|
687 | av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
|
|
688 | |
611 | hv_store (hv, key, -len, decode_sv (dec), 0); |
689 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
690 | |
|
|
691 | return; |
612 | } |
692 | } |
613 | else |
693 | |
614 | { |
|
|
615 | SV *k = decode_sv (dec); |
694 | SV *k = decode_sv (dec); |
616 | SV *v = decode_sv (dec); |
695 | SV *v = decode_sv (dec); |
617 | |
696 | |
618 | hv_store_ent (hv, k, v, 0); |
697 | hv_store_ent (hv, k, v, 0); |
619 | SvREFCNT_dec (k); |
698 | SvREFCNT_dec (k); |
620 | } |
|
|
621 | } |
699 | } |
622 | |
700 | |
623 | static SV * |
701 | static SV * |
624 | decode_hv (dec_t *dec) |
702 | decode_hv (dec_t *dec) |
625 | { |
703 | { |
… | |
… | |
691 | STRLEN len = decode_uint (dec); |
769 | STRLEN len = decode_uint (dec); |
692 | |
770 | |
693 | WANT (len); |
771 | WANT (len); |
694 | sv = newSVpvn (dec->cur, len); |
772 | sv = newSVpvn (dec->cur, len); |
695 | dec->cur += len; |
773 | dec->cur += len; |
|
|
774 | |
|
|
775 | if (ecb_expect_false (dec->stringref) |
|
|
776 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
777 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
696 | } |
778 | } |
697 | |
779 | |
698 | if (utf8) |
780 | if (utf8) |
699 | SvUTF8_on (sv); |
781 | SvUTF8_on (sv); |
700 | |
782 | |
… | |
… | |
706 | } |
788 | } |
707 | |
789 | |
708 | static SV * |
790 | static SV * |
709 | decode_tagged (dec_t *dec) |
791 | decode_tagged (dec_t *dec) |
710 | { |
792 | { |
|
|
793 | SV *sv = 0; |
711 | UV tag = decode_uint (dec); |
794 | UV tag = decode_uint (dec); |
|
|
795 | |
|
|
796 | WANT (1); |
|
|
797 | |
|
|
798 | switch (tag) |
|
|
799 | { |
|
|
800 | case CBOR_TAG_MAGIC: |
|
|
801 | sv = decode_sv (dec); |
|
|
802 | break; |
|
|
803 | |
|
|
804 | case CBOR_TAG_INDIRECTION: |
|
|
805 | sv = newRV_noinc (decode_sv (dec)); |
|
|
806 | break; |
|
|
807 | |
|
|
808 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
809 | { |
|
|
810 | ENTER; SAVETMPS; |
|
|
811 | |
|
|
812 | SAVESPTR (dec->stringref); |
|
|
813 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
814 | |
|
|
815 | sv = decode_sv (dec); |
|
|
816 | |
|
|
817 | FREETMPS; LEAVE; |
|
|
818 | } |
|
|
819 | break; |
|
|
820 | |
|
|
821 | case CBOR_TAG_STRINGREF: |
|
|
822 | { |
|
|
823 | if ((*dec->cur >> 5) != 0) |
|
|
824 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
825 | |
|
|
826 | UV idx = decode_uint (dec); |
|
|
827 | |
|
|
828 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
|
|
829 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
830 | |
|
|
831 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
832 | } |
|
|
833 | break; |
|
|
834 | |
|
|
835 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
836 | { |
|
|
837 | if (ecb_expect_false (!dec->shareable)) |
|
|
838 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
839 | |
|
|
840 | sv = newSV (0); |
|
|
841 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
842 | |
712 | SV *sv = decode_sv (dec); |
843 | SV *osv = decode_sv (dec); |
|
|
844 | sv_setsv (sv, osv); |
|
|
845 | SvREFCNT_dec_NN (osv); |
|
|
846 | } |
|
|
847 | break; |
713 | |
848 | |
714 | if (tag == CBOR_TAG_MAGIC) |
849 | case CBOR_TAG_VALUE_SHAREDREF: |
715 | return sv; |
850 | { |
716 | else if (tag == CBOR_TAG_PERL_OBJECT) |
851 | if ((*dec->cur >> 5) != 0) |
717 | { |
852 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
853 | |
|
|
854 | UV idx = decode_uint (dec); |
|
|
855 | |
|
|
856 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
|
|
857 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
858 | |
|
|
859 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
860 | } |
|
|
861 | break; |
|
|
862 | |
|
|
863 | case CBOR_TAG_PERL_OBJECT: |
|
|
864 | { |
|
|
865 | sv = decode_sv (dec); |
|
|
866 | |
718 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
867 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
719 | ERR ("corrupted CBOR data (non-array perl object)"); |
868 | ERR ("corrupted CBOR data (non-array perl object)"); |
720 | |
869 | |
721 | AV *av = (AV *)SvRV (sv); |
870 | AV *av = (AV *)SvRV (sv); |
722 | int len = av_len (av) + 1; |
871 | int len = av_len (av) + 1; |
723 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
872 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
724 | |
873 | |
725 | if (!stash) |
874 | if (!stash) |
726 | ERR ("cannot decode perl-object (package does not exist)"); |
875 | ERR ("cannot decode perl-object (package does not exist)"); |
727 | |
876 | |
728 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
877 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
729 | |
878 | |
730 | if (!method) |
879 | if (!method) |
731 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
880 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
732 | |
881 | |
733 | dSP; |
882 | dSP; |
734 | |
883 | |
735 | ENTER; SAVETMPS; PUSHMARK (SP); |
884 | ENTER; SAVETMPS; PUSHMARK (SP); |
736 | EXTEND (SP, len + 1); |
885 | EXTEND (SP, len + 1); |
737 | // we re-bless the reference to get overload and other niceties right |
886 | // we re-bless the reference to get overload and other niceties right |
738 | PUSHs (*av_fetch (av, 0, 1)); |
887 | PUSHs (*av_fetch (av, 0, 1)); |
739 | PUSHs (sv_cbor); |
888 | PUSHs (sv_cbor); |
740 | |
889 | |
741 | int i; |
890 | int i; |
742 | |
891 | |
743 | for (i = 1; i < len; ++i) |
892 | for (i = 1; i < len; ++i) |
744 | PUSHs (*av_fetch (av, i, 1)); |
893 | PUSHs (*av_fetch (av, i, 1)); |
745 | |
894 | |
746 | PUTBACK; |
895 | PUTBACK; |
747 | call_sv ((SV *)GvCV (method), G_SCALAR); |
896 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
748 | SPAGAIN; |
897 | SPAGAIN; |
749 | |
898 | |
|
|
899 | if (SvTRUE (ERRSV)) |
|
|
900 | { |
|
|
901 | FREETMPS; LEAVE; |
|
|
902 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
903 | } |
|
|
904 | |
750 | SvREFCNT_dec (sv); |
905 | SvREFCNT_dec (sv); |
751 | sv = SvREFCNT_inc (POPs); |
906 | sv = SvREFCNT_inc (POPs); |
752 | |
907 | |
753 | PUTBACK; |
908 | PUTBACK; |
754 | |
909 | |
755 | FREETMPS; LEAVE; |
910 | FREETMPS; LEAVE; |
|
|
911 | } |
|
|
912 | break; |
756 | |
913 | |
757 | return sv; |
914 | default: |
758 | } |
915 | { |
759 | else |
916 | sv = decode_sv (dec); |
760 | { |
917 | |
|
|
918 | dSP; |
|
|
919 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
920 | EXTEND (SP, 2); |
|
|
921 | PUSHs (newSVuv (tag)); |
|
|
922 | PUSHs (sv); |
|
|
923 | |
|
|
924 | PUTBACK; |
|
|
925 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
926 | SPAGAIN; |
|
|
927 | |
|
|
928 | if (SvTRUE (ERRSV)) |
|
|
929 | { |
|
|
930 | FREETMPS; LEAVE; |
|
|
931 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
932 | } |
|
|
933 | |
|
|
934 | if (count) |
|
|
935 | { |
|
|
936 | SvREFCNT_dec (sv); |
|
|
937 | sv = SvREFCNT_inc (POPs); |
|
|
938 | } |
|
|
939 | else |
|
|
940 | { |
761 | AV *av = newAV (); |
941 | AV *av = newAV (); |
762 | av_push (av, newSVuv (tag)); |
942 | av_push (av, newSVuv (tag)); |
763 | av_push (av, sv); |
943 | av_push (av, sv); |
764 | |
944 | |
765 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
945 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
766 | ? cbor_tagged_stash |
946 | ? cbor_tagged_stash |
767 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
947 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
768 | |
|
|
769 | return sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
948 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
949 | } |
|
|
950 | |
|
|
951 | PUTBACK; |
|
|
952 | |
|
|
953 | FREETMPS; LEAVE; |
|
|
954 | } |
|
|
955 | break; |
770 | } |
956 | } |
|
|
957 | |
|
|
958 | return sv; |
771 | |
959 | |
772 | fail: |
960 | fail: |
773 | SvREFCNT_dec (sv); |
961 | SvREFCNT_dec (sv); |
774 | return &PL_sv_undef; |
962 | return &PL_sv_undef; |
775 | } |
963 | } |
… | |
… | |
866 | } |
1054 | } |
867 | |
1055 | |
868 | static SV * |
1056 | static SV * |
869 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1057 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
870 | { |
1058 | { |
871 | dec_t dec; |
1059 | dec_t dec = { }; |
872 | SV *sv; |
1060 | SV *sv; |
873 | STRLEN len; |
1061 | STRLEN len; |
874 | char *data = SvPVbyte (string, len); |
1062 | char *data = SvPVbyte (string, len); |
875 | |
1063 | |
876 | if (len > cbor->max_size && cbor->max_size) |
1064 | if (len > cbor->max_size && cbor->max_size) |
… | |
… | |
878 | (unsigned long)len, (unsigned long)cbor->max_size); |
1066 | (unsigned long)len, (unsigned long)cbor->max_size); |
879 | |
1067 | |
880 | dec.cbor = *cbor; |
1068 | dec.cbor = *cbor; |
881 | dec.cur = (U8 *)data; |
1069 | dec.cur = (U8 *)data; |
882 | dec.end = (U8 *)data + len; |
1070 | dec.end = (U8 *)data + len; |
883 | dec.err = 0; |
|
|
884 | dec.depth = 0; |
|
|
885 | |
1071 | |
886 | sv = decode_sv (&dec); |
1072 | sv = decode_sv (&dec); |
887 | |
1073 | |
888 | if (offset_return) |
1074 | if (offset_return) |
889 | *offset_return = dec.cur; |
1075 | *offset_return = dec.cur; |
… | |
… | |
917 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1103 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
918 | |
1104 | |
919 | types_true = get_bool ("Types::Serialiser::true" ); |
1105 | types_true = get_bool ("Types::Serialiser::true" ); |
920 | types_false = get_bool ("Types::Serialiser::false"); |
1106 | types_false = get_bool ("Types::Serialiser::false"); |
921 | types_error = get_bool ("Types::Serialiser::error"); |
1107 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1108 | |
|
|
1109 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
922 | |
1110 | |
923 | sv_cbor = newSVpv ("CBOR", 0); |
1111 | sv_cbor = newSVpv ("CBOR", 0); |
924 | SvREADONLY_on (sv_cbor); |
1112 | SvREADONLY_on (sv_cbor); |
925 | } |
1113 | } |
926 | |
1114 | |
… | |
… | |
947 | |
1135 | |
948 | void shrink (CBOR *self, int enable = 1) |
1136 | void shrink (CBOR *self, int enable = 1) |
949 | ALIAS: |
1137 | ALIAS: |
950 | shrink = F_SHRINK |
1138 | shrink = F_SHRINK |
951 | allow_unknown = F_ALLOW_UNKNOWN |
1139 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1140 | allow_sharing = F_ALLOW_SHARING |
|
|
1141 | allow_stringref = F_ALLOW_STRINGREF |
952 | PPCODE: |
1142 | PPCODE: |
953 | { |
1143 | { |
954 | if (enable) |
1144 | if (enable) |
955 | self->flags |= ix; |
1145 | self->flags |= ix; |
956 | else |
1146 | else |
… | |
… | |
961 | |
1151 | |
962 | void get_shrink (CBOR *self) |
1152 | void get_shrink (CBOR *self) |
963 | ALIAS: |
1153 | ALIAS: |
964 | get_shrink = F_SHRINK |
1154 | get_shrink = F_SHRINK |
965 | get_allow_unknown = F_ALLOW_UNKNOWN |
1155 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1156 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1157 | get_allow_stringref = F_ALLOW_STRINGREF |
966 | PPCODE: |
1158 | PPCODE: |
967 | XPUSHs (boolSV (self->flags & ix)); |
1159 | XPUSHs (boolSV (self->flags & ix)); |
968 | |
1160 | |
969 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1161 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
970 | PPCODE: |
1162 | PPCODE: |
… | |
… | |
983 | XPUSHs (ST (0)); |
1175 | XPUSHs (ST (0)); |
984 | |
1176 | |
985 | int get_max_size (CBOR *self) |
1177 | int get_max_size (CBOR *self) |
986 | CODE: |
1178 | CODE: |
987 | RETVAL = self->max_size; |
1179 | RETVAL = self->max_size; |
|
|
1180 | OUTPUT: |
|
|
1181 | RETVAL |
|
|
1182 | |
|
|
1183 | void filter (CBOR *self, SV *filter = 0) |
|
|
1184 | PPCODE: |
|
|
1185 | SvREFCNT_dec (self->filter); |
|
|
1186 | self->filter = filter ? newSVsv (filter) : filter; |
|
|
1187 | XPUSHs (ST (0)); |
|
|
1188 | |
|
|
1189 | SV *get_filter (CBOR *self) |
|
|
1190 | CODE: |
|
|
1191 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
988 | OUTPUT: |
1192 | OUTPUT: |
989 | RETVAL |
1193 | RETVAL |
990 | |
1194 | |
991 | void encode (CBOR *self, SV *scalar) |
1195 | void encode (CBOR *self, SV *scalar) |
992 | PPCODE: |
1196 | PPCODE: |
… | |
… | |
1007 | EXTEND (SP, 2); |
1211 | EXTEND (SP, 2); |
1008 | PUSHs (sv); |
1212 | PUSHs (sv); |
1009 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1213 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1010 | } |
1214 | } |
1011 | |
1215 | |
|
|
1216 | void DESTROY (CBOR *self) |
|
|
1217 | PPCODE: |
|
|
1218 | cbor_free (self); |
|
|
1219 | |
1012 | PROTOTYPES: ENABLE |
1220 | PROTOTYPES: ENABLE |
1013 | |
1221 | |
1014 | void encode_cbor (SV *scalar) |
1222 | void encode_cbor (SV *scalar) |
1015 | PPCODE: |
1223 | PPCODE: |
1016 | { |
1224 | { |