… | |
… | |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
11 | |
11 | |
|
|
12 | #define ECB_NO_THREADS 1 |
12 | #include "ecb.h" |
13 | #include "ecb.h" |
13 | |
14 | |
14 | // compatibility with perl <5.18 |
15 | // compatibility with perl <5.18 |
15 | #ifndef HvNAMELEN_get |
16 | #ifndef HvNAMELEN_get |
16 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
17 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
… | |
… | |
97 | }; |
98 | }; |
98 | |
99 | |
99 | #define F_SHRINK 0x00000001UL |
100 | #define F_SHRINK 0x00000001UL |
100 | #define F_ALLOW_UNKNOWN 0x00000002UL |
101 | #define F_ALLOW_UNKNOWN 0x00000002UL |
101 | #define F_ALLOW_SHARING 0x00000004UL |
102 | #define F_ALLOW_SHARING 0x00000004UL |
|
|
103 | #define F_ALLOW_CYCLES 0x00000008UL |
|
|
104 | #define F_FORBID_OBJECTS 0x00000010UL |
102 | #define F_PACK_STRINGS 0x00000008UL |
105 | #define F_PACK_STRINGS 0x00000020UL |
|
|
106 | #define F_TEXT_KEYS 0x00000040UL |
|
|
107 | #define F_TEXT_STRINGS 0x00000080UL |
|
|
108 | #define F_VALIDATE_UTF8 0x00000100UL |
103 | |
109 | |
104 | #define INIT_SIZE 32 // initial scalar size to be allocated |
110 | #define INIT_SIZE 32 // initial scalar size to be allocated |
105 | |
111 | |
106 | #define SB do { |
112 | #define SB do { |
107 | #define SE } while (0) |
113 | #define SE } while (0) |
… | |
… | |
126 | typedef struct { |
132 | typedef struct { |
127 | U32 flags; |
133 | U32 flags; |
128 | U32 max_depth; |
134 | U32 max_depth; |
129 | STRLEN max_size; |
135 | STRLEN max_size; |
130 | SV *filter; |
136 | SV *filter; |
|
|
137 | |
|
|
138 | // for the incremental parser |
|
|
139 | STRLEN incr_pos; // the current offset into the text |
|
|
140 | STRLEN incr_need; // minimum bytes needed to decode |
|
|
141 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
131 | } CBOR; |
142 | } CBOR; |
132 | |
143 | |
133 | ecb_inline void |
144 | ecb_inline void |
134 | cbor_init (CBOR *cbor) |
145 | cbor_init (CBOR *cbor) |
135 | { |
146 | { |
… | |
… | |
139 | |
150 | |
140 | ecb_inline void |
151 | ecb_inline void |
141 | cbor_free (CBOR *cbor) |
152 | cbor_free (CBOR *cbor) |
142 | { |
153 | { |
143 | SvREFCNT_dec (cbor->filter); |
154 | SvREFCNT_dec (cbor->filter); |
|
|
155 | SvREFCNT_dec (cbor->incr_count); |
144 | } |
156 | } |
145 | |
157 | |
146 | ///////////////////////////////////////////////////////////////////////////// |
158 | ///////////////////////////////////////////////////////////////////////////// |
147 | // utility functions |
159 | // utility functions |
148 | |
160 | |
… | |
… | |
228 | { |
240 | { |
229 | need (enc, 9); |
241 | need (enc, 9); |
230 | |
242 | |
231 | if (ecb_expect_true (len < LENGTH_EXT1)) |
243 | if (ecb_expect_true (len < LENGTH_EXT1)) |
232 | *enc->cur++ = major | len; |
244 | *enc->cur++ = major | len; |
233 | else if (ecb_expect_true (len <= 0xff)) |
245 | else if (ecb_expect_true (len <= 0xffU)) |
234 | { |
246 | { |
235 | *enc->cur++ = major | LENGTH_EXT1; |
247 | *enc->cur++ = major | LENGTH_EXT1; |
236 | *enc->cur++ = len; |
248 | *enc->cur++ = len; |
237 | } |
249 | } |
238 | else if (len <= 0xffff) |
250 | else if (len <= 0xffffU) |
239 | { |
251 | { |
240 | *enc->cur++ = major | LENGTH_EXT2; |
252 | *enc->cur++ = major | LENGTH_EXT2; |
241 | *enc->cur++ = len >> 8; |
253 | *enc->cur++ = len >> 8; |
242 | *enc->cur++ = len; |
254 | *enc->cur++ = len; |
243 | } |
255 | } |
244 | else if (len <= 0xffffffff) |
256 | else if (len <= 0xffffffffU) |
245 | { |
257 | { |
246 | *enc->cur++ = major | LENGTH_EXT4; |
258 | *enc->cur++ = major | LENGTH_EXT4; |
247 | *enc->cur++ = len >> 24; |
259 | *enc->cur++ = len >> 24; |
248 | *enc->cur++ = len >> 16; |
260 | *enc->cur++ = len >> 16; |
249 | *enc->cur++ = len >> 8; |
261 | *enc->cur++ = len >> 8; |
… | |
… | |
267 | encode_tag (enc_t *enc, UV tag) |
279 | encode_tag (enc_t *enc, UV tag) |
268 | { |
280 | { |
269 | encode_uint (enc, MAJOR_TAG, tag); |
281 | encode_uint (enc, MAJOR_TAG, tag); |
270 | } |
282 | } |
271 | |
283 | |
|
|
284 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
|
|
285 | ecb_noinline static void |
|
|
286 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
|
|
287 | { |
|
|
288 | STRLEN ulen = len; |
|
|
289 | U8 *p, *pend = (U8 *)str + len; |
|
|
290 | |
|
|
291 | for (p = (U8 *)str; p < pend; ++p) |
|
|
292 | ulen += *p >> 7; // count set high bits |
|
|
293 | |
|
|
294 | encode_uint (enc, MAJOR_TEXT, ulen); |
|
|
295 | |
|
|
296 | need (enc, ulen); |
|
|
297 | for (p = (U8 *)str; p < pend; ++p) |
|
|
298 | if (*p < 0x80) |
|
|
299 | *enc->cur++ = *p; |
|
|
300 | else |
|
|
301 | { |
|
|
302 | *enc->cur++ = 0xc0 + (*p >> 6); |
|
|
303 | *enc->cur++ = 0x80 + (*p & 63); |
|
|
304 | } |
|
|
305 | } |
|
|
306 | |
272 | ecb_inline void |
307 | ecb_inline void |
273 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
308 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
274 | { |
309 | { |
|
|
310 | if (ecb_expect_false (upgrade_utf8)) |
|
|
311 | if (!utf8) |
|
|
312 | { |
|
|
313 | encode_str_utf8 (enc, utf8, str, len); |
|
|
314 | return; |
|
|
315 | } |
|
|
316 | |
275 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
317 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
276 | need (enc, len); |
318 | need (enc, len); |
277 | memcpy (enc->cur, str, len); |
319 | memcpy (enc->cur, str, len); |
278 | enc->cur += len; |
320 | enc->cur += len; |
279 | } |
321 | } |
280 | |
322 | |
281 | static void |
323 | ecb_inline void |
282 | encode_strref (enc_t *enc, int utf8, char *str, STRLEN len) |
324 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
283 | { |
325 | { |
284 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
326 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
285 | { |
327 | { |
286 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
328 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
287 | |
329 | |
… | |
… | |
298 | sv_setuv (*svp, enc->stringref_idx); |
340 | sv_setuv (*svp, enc->stringref_idx); |
299 | ++enc->stringref_idx; |
341 | ++enc->stringref_idx; |
300 | } |
342 | } |
301 | } |
343 | } |
302 | |
344 | |
303 | encode_str (enc, utf8, str, len); |
345 | encode_str (enc, upgrade_utf8, utf8, str, len); |
304 | } |
346 | } |
305 | |
347 | |
306 | static void encode_sv (enc_t *enc, SV *sv); |
348 | static void encode_sv (enc_t *enc, SV *sv); |
307 | |
349 | |
308 | static void |
350 | static void |
… | |
… | |
315 | |
357 | |
316 | ++enc->depth; |
358 | ++enc->depth; |
317 | |
359 | |
318 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
360 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
319 | |
361 | |
|
|
362 | if (SvMAGICAL (av)) |
320 | for (i = 0; i <= len; ++i) |
363 | for (i = 0; i <= len; ++i) |
321 | { |
364 | { |
322 | SV **svp = av_fetch (av, i, 0); |
365 | SV **svp = av_fetch (av, i, 0); |
323 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
366 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
324 | } |
367 | } |
|
|
368 | else |
|
|
369 | for (i = 0; i <= len; ++i) |
|
|
370 | { |
|
|
371 | SV *sv = AvARRAY (av)[i]; |
|
|
372 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
|
|
373 | } |
325 | |
374 | |
326 | --enc->depth; |
375 | --enc->depth; |
327 | } |
376 | } |
328 | |
377 | |
329 | static void |
378 | static void |
… | |
… | |
347 | while ((he = hv_iternext (hv))) |
396 | while ((he = hv_iternext (hv))) |
348 | { |
397 | { |
349 | if (HeKLEN (he) == HEf_SVKEY) |
398 | if (HeKLEN (he) == HEf_SVKEY) |
350 | encode_sv (enc, HeSVKEY (he)); |
399 | encode_sv (enc, HeSVKEY (he)); |
351 | else |
400 | else |
352 | encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
401 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
353 | |
402 | |
354 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
403 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
355 | } |
404 | } |
356 | |
405 | |
357 | if (mg) |
406 | if (mg) |
… | |
… | |
429 | if (ecb_expect_false (SvOBJECT (sv))) |
478 | if (ecb_expect_false (SvOBJECT (sv))) |
430 | { |
479 | { |
431 | HV *stash = SvSTASH (sv); |
480 | HV *stash = SvSTASH (sv); |
432 | GV *method; |
481 | GV *method; |
433 | |
482 | |
|
|
483 | if (enc->cbor.flags & F_FORBID_OBJECTS) |
|
|
484 | croak ("encountered object '%s', but forbid_objects is enabled", |
|
|
485 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
434 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
486 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
435 | { |
487 | { |
436 | dSP; |
488 | dSP; |
437 | |
489 | |
438 | ENTER; SAVETMPS; PUSHMARK (SP); |
490 | ENTER; SAVETMPS; |
|
|
491 | PUSHMARK (SP); |
439 | // we re-bless the reference to get overload and other niceties right |
492 | // we re-bless the reference to get overload and other niceties right |
440 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
493 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
441 | |
494 | |
442 | PUTBACK; |
495 | PUTBACK; |
443 | // G_SCALAR ensures that return value is 1 |
496 | // G_SCALAR ensures that return value is 1 |
… | |
… | |
456 | } |
509 | } |
457 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
510 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
458 | { |
511 | { |
459 | dSP; |
512 | dSP; |
460 | |
513 | |
461 | ENTER; SAVETMPS; PUSHMARK (SP); |
514 | ENTER; SAVETMPS; |
|
|
515 | SAVESTACK_POS (); |
|
|
516 | PUSHMARK (SP); |
462 | EXTEND (SP, 2); |
517 | EXTEND (SP, 2); |
463 | // we re-bless the reference to get overload and other niceties right |
518 | // we re-bless the reference to get overload and other niceties right |
464 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
519 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
465 | PUSHs (sv_cbor); |
520 | PUSHs (sv_cbor); |
466 | |
521 | |
… | |
… | |
472 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
527 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
473 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
528 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
474 | |
529 | |
475 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
530 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
476 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
531 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
477 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
532 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
478 | |
533 | |
479 | while (count) |
534 | while (count) |
480 | encode_sv (enc, SP[1 - count--]); |
535 | encode_sv (enc, SP[1 - count--]); |
481 | |
536 | |
482 | PUTBACK; |
537 | PUTBACK; |
… | |
… | |
541 | |
596 | |
542 | if (SvPOKp (sv)) |
597 | if (SvPOKp (sv)) |
543 | { |
598 | { |
544 | STRLEN len; |
599 | STRLEN len; |
545 | char *str = SvPV (sv, len); |
600 | char *str = SvPV (sv, len); |
546 | encode_strref (enc, SvUTF8 (sv), str, len); |
601 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
547 | } |
602 | } |
548 | else if (SvNOKp (sv)) |
603 | else if (SvNOKp (sv)) |
549 | encode_nv (enc, sv); |
604 | encode_nv (enc, sv); |
550 | else if (SvIOKp (sv)) |
605 | else if (SvIOKp (sv)) |
551 | { |
606 | { |
… | |
… | |
568 | } |
623 | } |
569 | |
624 | |
570 | static SV * |
625 | static SV * |
571 | encode_cbor (SV *scalar, CBOR *cbor) |
626 | encode_cbor (SV *scalar, CBOR *cbor) |
572 | { |
627 | { |
573 | enc_t enc = { }; |
628 | enc_t enc = { 0 }; |
574 | |
629 | |
575 | enc.cbor = *cbor; |
630 | enc.cbor = *cbor; |
576 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
631 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
577 | enc.cur = SvPVX (enc.sv); |
632 | enc.cur = SvPVX (enc.sv); |
578 | enc.end = SvEND (enc.sv); |
633 | enc.end = SvEND (enc.sv); |
… | |
… | |
610 | U32 depth; // recursion depth |
665 | U32 depth; // recursion depth |
611 | U32 maxdepth; // recursion depth limit |
666 | U32 maxdepth; // recursion depth limit |
612 | AV *shareable; |
667 | AV *shareable; |
613 | AV *stringref; |
668 | AV *stringref; |
614 | SV *decode_tagged; |
669 | SV *decode_tagged; |
|
|
670 | SV *err_sv; // optional sv for error, needs to be freed |
615 | } dec_t; |
671 | } dec_t; |
616 | |
672 | |
617 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
673 | // set dec->err to ERRSV |
|
|
674 | ecb_cold static void |
|
|
675 | err_errsv (dec_t *dec) |
|
|
676 | { |
|
|
677 | if (!dec->err) |
|
|
678 | { |
|
|
679 | dec->err_sv = newSVsv (ERRSV); |
618 | |
680 | |
619 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
681 | // chop off the trailing \n |
|
|
682 | SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
|
|
683 | *SvEND (dec->err_sv) = 0; |
620 | |
684 | |
|
|
685 | dec->err = SvPVutf8_nolen (dec->err_sv); |
|
|
686 | } |
|
|
687 | } |
|
|
688 | |
|
|
689 | // the following functions are used to reduce code size and help the compiler to optimise |
|
|
690 | ecb_cold static void |
|
|
691 | err_set (dec_t *dec, const char *reason) |
|
|
692 | { |
|
|
693 | if (!dec->err) |
|
|
694 | dec->err = reason; |
|
|
695 | } |
|
|
696 | |
|
|
697 | ecb_cold static void |
|
|
698 | err_unexpected_end (dec_t *dec) |
|
|
699 | { |
|
|
700 | err_set (dec, "unexpected end of CBOR data"); |
|
|
701 | } |
|
|
702 | |
|
|
703 | ecb_cold static void |
|
|
704 | err_nesting_exceeded (dec_t *dec) |
|
|
705 | { |
|
|
706 | err_set (dec, ERR_NESTING_EXCEEDED); |
|
|
707 | } |
|
|
708 | |
|
|
709 | #define ERR_DO(do) SB do; goto fail; SE |
|
|
710 | #define ERR(reason) ERR_DO (err_set (dec, reason)) |
|
|
711 | #define ERR_ERRSV ERR_DO (err_errsv (dec)) |
|
|
712 | |
|
|
713 | #define WANT(len) if (ecb_expect_false ((UV)(dec->end - dec->cur) < (UV)len)) ERR_DO (err_unexpected_end (dec)) |
|
|
714 | |
621 | #define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
715 | #define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
622 | #define DEC_DEC_DEPTH --dec->depth |
716 | #define DEC_DEC_DEPTH --dec->depth |
623 | |
717 | |
624 | static UV |
718 | static UV |
625 | decode_uint (dec_t *dec) |
719 | decode_uint (dec_t *dec) |
626 | { |
720 | { |
627 | U8 m = *dec->cur & MINOR_MASK; |
721 | U8 m = *dec->cur & MINOR_MASK; |
628 | ++dec->cur; |
722 | ++dec->cur; |
629 | |
723 | |
630 | if (ecb_expect_true (m < LENGTH_EXT1)) |
724 | if (ecb_expect_true (m < LENGTH_EXT1)) |
631 | return m; |
725 | return m; |
632 | |
726 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
633 | switch (m) |
|
|
634 | { |
727 | { |
635 | case LENGTH_EXT1: |
|
|
636 | WANT (1); |
728 | WANT (1); |
637 | dec->cur += 1; |
729 | dec->cur += 1; |
638 | return dec->cur[-1]; |
730 | return dec->cur[-1]; |
639 | |
731 | } |
640 | case LENGTH_EXT2: |
732 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
733 | { |
641 | WANT (2); |
734 | WANT (2); |
642 | dec->cur += 2; |
735 | dec->cur += 2; |
643 | return (((UV)dec->cur[-2]) << 8) |
736 | return (((UV)dec->cur[-2]) << 8) |
644 | | ((UV)dec->cur[-1]); |
737 | | ((UV)dec->cur[-1]); |
645 | |
738 | } |
646 | case LENGTH_EXT4: |
739 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
740 | { |
647 | WANT (4); |
741 | WANT (4); |
648 | dec->cur += 4; |
742 | dec->cur += 4; |
649 | return (((UV)dec->cur[-4]) << 24) |
743 | return (((UV)dec->cur[-4]) << 24) |
650 | | (((UV)dec->cur[-3]) << 16) |
744 | | (((UV)dec->cur[-3]) << 16) |
651 | | (((UV)dec->cur[-2]) << 8) |
745 | | (((UV)dec->cur[-2]) << 8) |
652 | | ((UV)dec->cur[-1]); |
746 | | ((UV)dec->cur[-1]); |
653 | |
747 | } |
654 | case LENGTH_EXT8: |
748 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
749 | { |
655 | WANT (8); |
750 | WANT (8); |
656 | dec->cur += 8; |
751 | dec->cur += 8; |
657 | |
752 | |
658 | return |
753 | return |
659 | #if UVSIZE < 8 |
754 | #if UVSIZE < 8 |
660 | 0 |
755 | 0 |
661 | #else |
756 | #else |
662 | (((UV)dec->cur[-8]) << 56) |
757 | (((UV)dec->cur[-8]) << 56) |
663 | | (((UV)dec->cur[-7]) << 48) |
758 | | (((UV)dec->cur[-7]) << 48) |
664 | | (((UV)dec->cur[-6]) << 40) |
759 | | (((UV)dec->cur[-6]) << 40) |
665 | | (((UV)dec->cur[-5]) << 32) |
760 | | (((UV)dec->cur[-5]) << 32) |
666 | #endif |
761 | #endif |
667 | | (((UV)dec->cur[-4]) << 24) |
762 | | (((UV)dec->cur[-4]) << 24) |
668 | | (((UV)dec->cur[-3]) << 16) |
763 | | (((UV)dec->cur[-3]) << 16) |
669 | | (((UV)dec->cur[-2]) << 8) |
764 | | (((UV)dec->cur[-2]) << 8) |
670 | | ((UV)dec->cur[-1]); |
765 | | ((UV)dec->cur[-1]); |
671 | |
766 | } |
672 | default: |
767 | else |
673 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
768 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
674 | } |
|
|
675 | |
769 | |
676 | fail: |
770 | fail: |
677 | return 0; |
771 | return 0; |
678 | } |
772 | } |
679 | |
773 | |
… | |
… | |
703 | av_push (av, decode_sv (dec)); |
797 | av_push (av, decode_sv (dec)); |
704 | } |
798 | } |
705 | } |
799 | } |
706 | else |
800 | else |
707 | { |
801 | { |
708 | int i, len = decode_uint (dec); |
802 | UV i, len = decode_uint (dec); |
709 | |
803 | |
|
|
804 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
710 | av_fill (av, len - 1); |
805 | av_fill (av, len - 1); |
711 | |
806 | |
712 | for (i = 0; i < len; ++i) |
807 | for (i = 0; i < len; ++i) |
713 | AvARRAY (av)[i] = decode_sv (dec); |
808 | AvARRAY (av)[i] = decode_sv (dec); |
714 | } |
809 | } |
… | |
… | |
727 | { |
822 | { |
728 | // for speed reasons, we specialcase single-string |
823 | // for speed reasons, we specialcase single-string |
729 | // byte or utf-8 strings as keys, but only when !stringref |
824 | // byte or utf-8 strings as keys, but only when !stringref |
730 | |
825 | |
731 | if (ecb_expect_true (!dec->stringref)) |
826 | if (ecb_expect_true (!dec->stringref)) |
732 | if ((*dec->cur - MAJOR_BYTES) <= 27) |
827 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
733 | { |
828 | { |
734 | I32 len = decode_uint (dec); |
829 | STRLEN len = decode_uint (dec); |
735 | char *key = (char *)dec->cur; |
830 | char *key = (char *)dec->cur; |
736 | |
831 | |
|
|
832 | WANT (len); |
737 | dec->cur += len; |
833 | dec->cur += len; |
738 | |
834 | |
739 | if (ecb_expect_false (dec->stringref)) |
|
|
740 | av_push (dec->stringref, newSVpvn (key, len)); |
|
|
741 | |
|
|
742 | hv_store (hv, key, len, decode_sv (dec), 0); |
835 | hv_store (hv, key, len, decode_sv (dec), 0); |
743 | |
836 | |
744 | return; |
837 | return; |
745 | } |
838 | } |
746 | else if ((*dec->cur - MAJOR_TEXT) <= 27) |
839 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
747 | { |
840 | { |
748 | I32 len = decode_uint (dec); |
841 | STRLEN len = decode_uint (dec); |
749 | char *key = (char *)dec->cur; |
842 | char *key = (char *)dec->cur; |
750 | |
843 | |
|
|
844 | WANT (len); |
751 | dec->cur += len; |
845 | dec->cur += len; |
752 | |
846 | |
753 | if (ecb_expect_false (dec->stringref)) |
847 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
754 | av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
848 | if (!is_utf8_string (key, len)) |
|
|
849 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
755 | |
850 | |
756 | hv_store (hv, key, -len, decode_sv (dec), 0); |
851 | hv_store (hv, key, -len, decode_sv (dec), 0); |
757 | |
852 | |
758 | return; |
853 | return; |
759 | } |
854 | } |
760 | |
855 | |
761 | SV *k = decode_sv (dec); |
856 | SV *k = decode_sv (dec); |
762 | SV *v = decode_sv (dec); |
857 | SV *v = decode_sv (dec); |
763 | |
858 | |
|
|
859 | // we leak memory if uncaught exceptions are thrown by random magical |
|
|
860 | // methods, and this is hopefully the only place where it can happen, |
|
|
861 | // so if there is a chance of an exception, take the very slow path. |
|
|
862 | // since catching exceptions is "undocumented/internal/forbidden" by |
|
|
863 | // the new p5p powers, we need to call out to a perl function :/ |
|
|
864 | if (ecb_expect_false (SvAMAGIC (k))) |
|
|
865 | { |
|
|
866 | dSP; |
|
|
867 | |
|
|
868 | ENTER; SAVETMPS; |
|
|
869 | PUSHMARK (SP); |
|
|
870 | EXTEND (SP, 3); |
|
|
871 | PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
|
|
872 | PUSHs (sv_2mortal (k)); |
|
|
873 | PUSHs (sv_2mortal (v)); |
|
|
874 | |
|
|
875 | PUTBACK; |
|
|
876 | call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
|
|
877 | SPAGAIN; |
|
|
878 | |
|
|
879 | FREETMPS; LEAVE; |
|
|
880 | |
|
|
881 | if (SvTRUE (ERRSV)) |
|
|
882 | ERR_ERRSV; |
|
|
883 | |
|
|
884 | return; |
|
|
885 | } |
|
|
886 | |
764 | hv_store_ent (hv, k, v, 0); |
887 | hv_store_ent (hv, k, v, 0); |
765 | SvREFCNT_dec (k); |
888 | SvREFCNT_dec (k); |
|
|
889 | |
|
|
890 | fail: |
|
|
891 | ; |
766 | } |
892 | } |
767 | |
893 | |
768 | static SV * |
894 | static SV * |
769 | decode_hv (dec_t *dec) |
895 | decode_hv (dec_t *dec) |
770 | { |
896 | { |
… | |
… | |
789 | decode_he (dec, hv); |
915 | decode_he (dec, hv); |
790 | } |
916 | } |
791 | } |
917 | } |
792 | else |
918 | else |
793 | { |
919 | { |
794 | int pairs = decode_uint (dec); |
920 | UV pairs = decode_uint (dec); |
|
|
921 | |
|
|
922 | WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
795 | |
923 | |
796 | while (pairs--) |
924 | while (pairs--) |
797 | decode_he (dec, hv); |
925 | decode_he (dec, hv); |
798 | } |
926 | } |
799 | |
927 | |
… | |
… | |
852 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
980 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
853 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
981 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
854 | } |
982 | } |
855 | |
983 | |
856 | if (utf8) |
984 | if (utf8) |
|
|
985 | { |
|
|
986 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
987 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
988 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
989 | |
857 | SvUTF8_on (sv); |
990 | SvUTF8_on (sv); |
|
|
991 | } |
858 | |
992 | |
859 | return sv; |
993 | return sv; |
860 | |
994 | |
861 | fail: |
995 | fail: |
862 | SvREFCNT_dec (sv); |
996 | SvREFCNT_dec (sv); |
… | |
… | |
881 | sv = newRV_noinc (decode_sv (dec)); |
1015 | sv = newRV_noinc (decode_sv (dec)); |
882 | break; |
1016 | break; |
883 | |
1017 | |
884 | case CBOR_TAG_STRINGREF_NAMESPACE: |
1018 | case CBOR_TAG_STRINGREF_NAMESPACE: |
885 | { |
1019 | { |
|
|
1020 | // do nmot use SAVETMPS/FREETMPS, as these will |
|
|
1021 | // erase mortalised caches, e.g. "shareable" |
886 | ENTER; SAVETMPS; |
1022 | ENTER; |
887 | |
1023 | |
888 | SAVESPTR (dec->stringref); |
1024 | SAVESPTR (dec->stringref); |
889 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
1025 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
890 | |
1026 | |
891 | sv = decode_sv (dec); |
1027 | sv = decode_sv (dec); |
892 | |
1028 | |
893 | FREETMPS; LEAVE; |
1029 | LEAVE; |
894 | } |
1030 | } |
895 | break; |
1031 | break; |
896 | |
1032 | |
897 | case CBOR_TAG_STRINGREF: |
1033 | case CBOR_TAG_STRINGREF: |
898 | { |
1034 | { |
… | |
… | |
911 | case CBOR_TAG_VALUE_SHAREABLE: |
1047 | case CBOR_TAG_VALUE_SHAREABLE: |
912 | { |
1048 | { |
913 | if (ecb_expect_false (!dec->shareable)) |
1049 | if (ecb_expect_false (!dec->shareable)) |
914 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
1050 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
915 | |
1051 | |
|
|
1052 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
1053 | { |
916 | sv = newSV (0); |
1054 | sv = newSV (0); |
917 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
1055 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
918 | |
1056 | |
919 | SV *osv = decode_sv (dec); |
1057 | SV *osv = decode_sv (dec); |
920 | sv_setsv (sv, osv); |
1058 | sv_setsv (sv, osv); |
921 | SvREFCNT_dec_NN (osv); |
1059 | SvREFCNT_dec_NN (osv); |
|
|
1060 | } |
|
|
1061 | else |
|
|
1062 | { |
|
|
1063 | av_push (dec->shareable, &PL_sv_undef); |
|
|
1064 | int idx = AvFILLp (dec->shareable); |
|
|
1065 | sv = decode_sv (dec); |
|
|
1066 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
1067 | } |
922 | } |
1068 | } |
923 | break; |
1069 | break; |
924 | |
1070 | |
925 | case CBOR_TAG_VALUE_SHAREDREF: |
1071 | case CBOR_TAG_VALUE_SHAREDREF: |
926 | { |
1072 | { |
… | |
… | |
931 | |
1077 | |
932 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
1078 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
933 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
1079 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
934 | |
1080 | |
935 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
1081 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
1082 | |
|
|
1083 | if (sv == &PL_sv_undef) |
|
|
1084 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
936 | } |
1085 | } |
937 | break; |
1086 | break; |
938 | |
1087 | |
939 | case CBOR_TAG_PERL_OBJECT: |
1088 | case CBOR_TAG_PERL_OBJECT: |
940 | { |
1089 | { |
|
|
1090 | if (dec->cbor.flags & F_FORBID_OBJECTS) |
|
|
1091 | goto filter; |
|
|
1092 | |
941 | sv = decode_sv (dec); |
1093 | sv = decode_sv (dec); |
942 | |
1094 | |
943 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
1095 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
944 | ERR ("corrupted CBOR data (non-array perl object)"); |
1096 | ERR ("corrupted CBOR data (non-array perl object)"); |
945 | |
1097 | |
… | |
… | |
955 | if (!method) |
1107 | if (!method) |
956 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1108 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
957 | |
1109 | |
958 | dSP; |
1110 | dSP; |
959 | |
1111 | |
960 | ENTER; SAVETMPS; PUSHMARK (SP); |
1112 | ENTER; SAVETMPS; |
|
|
1113 | PUSHMARK (SP); |
961 | EXTEND (SP, len + 1); |
1114 | EXTEND (SP, len + 1); |
962 | // we re-bless the reference to get overload and other niceties right |
1115 | // we re-bless the reference to get overload and other niceties right |
963 | PUSHs (*av_fetch (av, 0, 1)); |
1116 | PUSHs (*av_fetch (av, 0, 1)); |
964 | PUSHs (sv_cbor); |
1117 | PUSHs (sv_cbor); |
965 | |
1118 | |
… | |
… | |
973 | SPAGAIN; |
1126 | SPAGAIN; |
974 | |
1127 | |
975 | if (SvTRUE (ERRSV)) |
1128 | if (SvTRUE (ERRSV)) |
976 | { |
1129 | { |
977 | FREETMPS; LEAVE; |
1130 | FREETMPS; LEAVE; |
978 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1131 | ERR_ERRSV; |
979 | } |
1132 | } |
980 | |
1133 | |
981 | SvREFCNT_dec (sv); |
1134 | SvREFCNT_dec (sv); |
982 | sv = SvREFCNT_inc (POPs); |
1135 | sv = SvREFCNT_inc (POPs); |
983 | |
1136 | |
… | |
… | |
986 | FREETMPS; LEAVE; |
1139 | FREETMPS; LEAVE; |
987 | } |
1140 | } |
988 | break; |
1141 | break; |
989 | |
1142 | |
990 | default: |
1143 | default: |
|
|
1144 | filter: |
991 | { |
1145 | { |
|
|
1146 | SV *tag_sv = newSVuv (tag); |
|
|
1147 | |
992 | sv = decode_sv (dec); |
1148 | sv = decode_sv (dec); |
993 | |
1149 | |
994 | dSP; |
1150 | dSP; |
995 | ENTER; SAVETMPS; PUSHMARK (SP); |
1151 | ENTER; SAVETMPS; |
|
|
1152 | SAVESTACK_POS (); |
|
|
1153 | PUSHMARK (SP); |
996 | EXTEND (SP, 2); |
1154 | EXTEND (SP, 2); |
997 | PUSHs (newSVuv (tag)); |
1155 | PUSHs (tag_sv); |
998 | PUSHs (sv); |
1156 | PUSHs (sv); |
999 | |
1157 | |
1000 | PUTBACK; |
1158 | PUTBACK; |
1001 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1159 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1002 | SPAGAIN; |
1160 | SPAGAIN; |
1003 | |
1161 | |
1004 | if (SvTRUE (ERRSV)) |
1162 | if (SvTRUE (ERRSV)) |
1005 | { |
1163 | { |
|
|
1164 | SvREFCNT_dec (tag_sv); |
1006 | FREETMPS; LEAVE; |
1165 | FREETMPS; LEAVE; |
1007 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
1166 | ERR_ERRSV; |
1008 | } |
1167 | } |
1009 | |
1168 | |
1010 | if (count) |
1169 | if (count) |
1011 | { |
1170 | { |
|
|
1171 | SvREFCNT_dec (tag_sv); |
1012 | SvREFCNT_dec (sv); |
1172 | SvREFCNT_dec (sv); |
1013 | sv = SvREFCNT_inc (POPs); |
1173 | sv = SvREFCNT_inc (POPs); |
1014 | } |
1174 | } |
1015 | else |
1175 | else |
1016 | { |
1176 | { |
1017 | AV *av = newAV (); |
1177 | AV *av = newAV (); |
1018 | av_push (av, newSVuv (tag)); |
1178 | av_push (av, tag_sv); |
1019 | av_push (av, sv); |
1179 | av_push (av, sv); |
1020 | |
1180 | |
1021 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1181 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1022 | ? cbor_tagged_stash |
1182 | ? cbor_tagged_stash |
1023 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
1183 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
… | |
… | |
1109 | |
1269 | |
1110 | return newSVnv (ecb_binary64_to_double (fp)); |
1270 | return newSVnv (ecb_binary64_to_double (fp)); |
1111 | } |
1271 | } |
1112 | |
1272 | |
1113 | // 0..19 unassigned simple |
1273 | // 0..19 unassigned simple |
1114 | // 24 reserved + unassigned (reserved values are not encodable) |
1274 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1275 | // 28-30 unassigned misc |
|
|
1276 | // 31 break code |
1115 | default: |
1277 | default: |
1116 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1278 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1117 | } |
1279 | } |
1118 | |
1280 | |
1119 | break; |
1281 | break; |
1120 | } |
1282 | } |
1121 | |
1283 | |
… | |
… | |
1124 | } |
1286 | } |
1125 | |
1287 | |
1126 | static SV * |
1288 | static SV * |
1127 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1289 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1128 | { |
1290 | { |
1129 | dec_t dec = { }; |
1291 | dec_t dec = { 0 }; |
1130 | SV *sv; |
1292 | SV *sv; |
1131 | STRLEN len; |
1293 | STRLEN len; |
1132 | char *data = SvPVbyte (string, len); |
1294 | char *data = SvPVbyte (string, len); |
1133 | |
1295 | |
1134 | if (len > cbor->max_size && cbor->max_size) |
1296 | if (len > cbor->max_size && cbor->max_size) |
… | |
… | |
1148 | if (dec.cur != dec.end && !dec.err) |
1310 | if (dec.cur != dec.end && !dec.err) |
1149 | dec.err = "garbage after CBOR object"; |
1311 | dec.err = "garbage after CBOR object"; |
1150 | |
1312 | |
1151 | if (dec.err) |
1313 | if (dec.err) |
1152 | { |
1314 | { |
|
|
1315 | if (dec.shareable) |
|
|
1316 | { |
|
|
1317 | // need to break cyclic links, which would all be in shareable |
|
|
1318 | int i; |
|
|
1319 | SV **svp; |
|
|
1320 | |
|
|
1321 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1322 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1323 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1324 | } |
|
|
1325 | |
1153 | SvREFCNT_dec (sv); |
1326 | SvREFCNT_dec (sv); |
|
|
1327 | |
|
|
1328 | if (dec.err_sv) |
|
|
1329 | sv_2mortal (dec.err_sv); |
|
|
1330 | |
1154 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1331 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1155 | } |
1332 | } |
1156 | |
1333 | |
1157 | sv = sv_2mortal (sv); |
1334 | sv = sv_2mortal (sv); |
1158 | |
1335 | |
1159 | return sv; |
1336 | return sv; |
1160 | } |
1337 | } |
1161 | |
1338 | |
|
|
1339 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1340 | // incremental parser |
|
|
1341 | |
|
|
1342 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1343 | |
|
|
1344 | // returns 0 for notyet, 1 for success or error |
|
|
1345 | static int |
|
|
1346 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1347 | { |
|
|
1348 | STRLEN cur; |
|
|
1349 | SvPV (cborstr, cur); |
|
|
1350 | |
|
|
1351 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1352 | { |
|
|
1353 | // table of integer count bytes |
|
|
1354 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1355 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1356 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1357 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1358 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1359 | }; |
|
|
1360 | |
|
|
1361 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1362 | U8 m = *p & MINOR_MASK; |
|
|
1363 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1364 | I8 ilen = incr_len[m]; |
|
|
1365 | |
|
|
1366 | self->incr_need = self->incr_pos + 1; |
|
|
1367 | |
|
|
1368 | if (ecb_expect_false (ilen < 0)) |
|
|
1369 | { |
|
|
1370 | if (m != MINOR_INDEF) |
|
|
1371 | return 1; // error |
|
|
1372 | |
|
|
1373 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1374 | { |
|
|
1375 | if (count >= 0) |
|
|
1376 | return 1; // error |
|
|
1377 | |
|
|
1378 | count = 1; |
|
|
1379 | } |
|
|
1380 | else |
|
|
1381 | { |
|
|
1382 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1383 | count = -1; |
|
|
1384 | } |
|
|
1385 | } |
|
|
1386 | else |
|
|
1387 | { |
|
|
1388 | self->incr_need += ilen; |
|
|
1389 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1390 | return 0; |
|
|
1391 | |
|
|
1392 | int major = *p >> MAJOR_SHIFT; |
|
|
1393 | |
|
|
1394 | switch (major) |
|
|
1395 | { |
|
|
1396 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1397 | ++count; // tags merely prefix another value |
|
|
1398 | break; |
|
|
1399 | |
|
|
1400 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1401 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1402 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1403 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1404 | { |
|
|
1405 | UV len; |
|
|
1406 | |
|
|
1407 | if (ecb_expect_false (ilen)) |
|
|
1408 | { |
|
|
1409 | len = 0; |
|
|
1410 | |
|
|
1411 | do { |
|
|
1412 | len = (len << 8) | *++p; |
|
|
1413 | } while (--ilen); |
|
|
1414 | } |
|
|
1415 | else |
|
|
1416 | len = m; |
|
|
1417 | |
|
|
1418 | switch (major) |
|
|
1419 | { |
|
|
1420 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1421 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1422 | self->incr_need += len; |
|
|
1423 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1424 | return 0; |
|
|
1425 | |
|
|
1426 | break; |
|
|
1427 | |
|
|
1428 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1429 | len <<= 1; |
|
|
1430 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1431 | if (len) |
|
|
1432 | { |
|
|
1433 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1434 | count = len + 1; |
|
|
1435 | } |
|
|
1436 | break; |
|
|
1437 | } |
|
|
1438 | } |
|
|
1439 | } |
|
|
1440 | } |
|
|
1441 | |
|
|
1442 | self->incr_pos = self->incr_need; |
|
|
1443 | |
|
|
1444 | if (count > 0) |
|
|
1445 | { |
|
|
1446 | while (!--count) |
|
|
1447 | { |
|
|
1448 | if (!AvFILLp (self->incr_count)) |
|
|
1449 | return 1; // done |
|
|
1450 | |
|
|
1451 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1452 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1453 | } |
|
|
1454 | |
|
|
1455 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1456 | } |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | return 0; |
|
|
1460 | } |
|
|
1461 | |
|
|
1462 | |
1162 | ///////////////////////////////////////////////////////////////////////////// |
1463 | ///////////////////////////////////////////////////////////////////////////// |
1163 | // XS interface functions |
1464 | // XS interface functions |
1164 | |
1465 | |
1165 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1466 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1166 | |
1467 | |
… | |
… | |
1178 | |
1479 | |
1179 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1480 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1180 | |
1481 | |
1181 | sv_cbor = newSVpv ("CBOR", 0); |
1482 | sv_cbor = newSVpv ("CBOR", 0); |
1182 | SvREADONLY_on (sv_cbor); |
1483 | SvREADONLY_on (sv_cbor); |
|
|
1484 | |
|
|
1485 | assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1)); |
1183 | } |
1486 | } |
1184 | |
1487 | |
1185 | PROTOTYPES: DISABLE |
1488 | PROTOTYPES: DISABLE |
1186 | |
1489 | |
1187 | void CLONE (...) |
1490 | void CLONE (...) |
… | |
… | |
1206 | void shrink (CBOR *self, int enable = 1) |
1509 | void shrink (CBOR *self, int enable = 1) |
1207 | ALIAS: |
1510 | ALIAS: |
1208 | shrink = F_SHRINK |
1511 | shrink = F_SHRINK |
1209 | allow_unknown = F_ALLOW_UNKNOWN |
1512 | allow_unknown = F_ALLOW_UNKNOWN |
1210 | allow_sharing = F_ALLOW_SHARING |
1513 | allow_sharing = F_ALLOW_SHARING |
|
|
1514 | allow_cycles = F_ALLOW_CYCLES |
|
|
1515 | forbid_objects = F_FORBID_OBJECTS |
1211 | pack_strings = F_PACK_STRINGS |
1516 | pack_strings = F_PACK_STRINGS |
|
|
1517 | text_keys = F_TEXT_KEYS |
|
|
1518 | text_strings = F_TEXT_STRINGS |
|
|
1519 | validate_utf8 = F_VALIDATE_UTF8 |
1212 | PPCODE: |
1520 | PPCODE: |
1213 | { |
1521 | { |
1214 | if (enable) |
1522 | if (enable) |
1215 | self->flags |= ix; |
1523 | self->flags |= ix; |
1216 | else |
1524 | else |
… | |
… | |
1222 | void get_shrink (CBOR *self) |
1530 | void get_shrink (CBOR *self) |
1223 | ALIAS: |
1531 | ALIAS: |
1224 | get_shrink = F_SHRINK |
1532 | get_shrink = F_SHRINK |
1225 | get_allow_unknown = F_ALLOW_UNKNOWN |
1533 | get_allow_unknown = F_ALLOW_UNKNOWN |
1226 | get_allow_sharing = F_ALLOW_SHARING |
1534 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1535 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1536 | get_forbid_objects = F_FORBID_OBJECTS |
1227 | get_pack_strings = F_PACK_STRINGS |
1537 | get_pack_strings = F_PACK_STRINGS |
|
|
1538 | get_text_keys = F_TEXT_KEYS |
|
|
1539 | get_text_strings = F_TEXT_STRINGS |
|
|
1540 | get_validate_utf8 = F_VALIDATE_UTF8 |
1228 | PPCODE: |
1541 | PPCODE: |
1229 | XPUSHs (boolSV (self->flags & ix)); |
1542 | XPUSHs (boolSV (self->flags & ix)); |
1230 | |
1543 | |
1231 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1544 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1232 | PPCODE: |
1545 | PPCODE: |
… | |
… | |
1281 | EXTEND (SP, 2); |
1594 | EXTEND (SP, 2); |
1282 | PUSHs (sv); |
1595 | PUSHs (sv); |
1283 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1596 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1284 | } |
1597 | } |
1285 | |
1598 | |
|
|
1599 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1600 | ALIAS: |
|
|
1601 | incr_parse_multiple = 1 |
|
|
1602 | PPCODE: |
|
|
1603 | { |
|
|
1604 | if (SvUTF8 (cborstr)) |
|
|
1605 | sv_utf8_downgrade (cborstr, 0); |
|
|
1606 | |
|
|
1607 | if (!self->incr_count) |
|
|
1608 | { |
|
|
1609 | self->incr_count = newAV (); |
|
|
1610 | self->incr_pos = 0; |
|
|
1611 | self->incr_need = 1; |
|
|
1612 | |
|
|
1613 | av_push (self->incr_count, newSViv (1)); |
|
|
1614 | } |
|
|
1615 | |
|
|
1616 | do |
|
|
1617 | { |
|
|
1618 | if (!incr_parse (self, cborstr)) |
|
|
1619 | { |
|
|
1620 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1621 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1622 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1623 | |
|
|
1624 | break; |
|
|
1625 | } |
|
|
1626 | |
|
|
1627 | SV *sv; |
|
|
1628 | char *offset; |
|
|
1629 | |
|
|
1630 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1631 | XPUSHs (sv); |
|
|
1632 | |
|
|
1633 | sv_chop (cborstr, offset); |
|
|
1634 | |
|
|
1635 | av_clear (self->incr_count); |
|
|
1636 | av_push (self->incr_count, newSViv (1)); |
|
|
1637 | |
|
|
1638 | self->incr_pos = 0; |
|
|
1639 | self->incr_need = self->incr_pos + 1; |
|
|
1640 | } |
|
|
1641 | while (ix); |
|
|
1642 | } |
|
|
1643 | |
|
|
1644 | void incr_reset (CBOR *self) |
|
|
1645 | CODE: |
|
|
1646 | { |
|
|
1647 | SvREFCNT_dec (self->incr_count); |
|
|
1648 | self->incr_count = 0; |
|
|
1649 | } |
|
|
1650 | |
1286 | void DESTROY (CBOR *self) |
1651 | void DESTROY (CBOR *self) |
1287 | PPCODE: |
1652 | PPCODE: |
1288 | cbor_free (self); |
1653 | cbor_free (self); |
1289 | |
1654 | |
1290 | PROTOTYPES: ENABLE |
1655 | PROTOTYPES: ENABLE |
1291 | |
1656 | |
1292 | void encode_cbor (SV *scalar) |
1657 | void encode_cbor (SV *scalar) |
|
|
1658 | ALIAS: |
|
|
1659 | encode_cbor = 0 |
|
|
1660 | encode_cbor_sharing = F_ALLOW_SHARING |
1293 | PPCODE: |
1661 | PPCODE: |
1294 | { |
1662 | { |
1295 | CBOR cbor; |
1663 | CBOR cbor; |
1296 | cbor_init (&cbor); |
1664 | cbor_init (&cbor); |
|
|
1665 | cbor.flags |= ix; |
1297 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1666 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1298 | XPUSHs (scalar); |
1667 | XPUSHs (scalar); |
1299 | } |
1668 | } |
1300 | |
1669 | |
1301 | void decode_cbor (SV *cborstr) |
1670 | void decode_cbor (SV *cborstr) |