… | |
… | |
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)) |
… | |
… | |
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 |
102 | #define F_ALLOW_CYCLES 0x00000008UL |
103 | #define F_ALLOW_CYCLES 0x00000008UL |
103 | #define F_PACK_STRINGS 0x00000010UL |
104 | #define F_PACK_STRINGS 0x00000010UL |
|
|
105 | #define F_TEXT_KEYS 0x00000020UL |
|
|
106 | #define F_TEXT_STRINGS 0x00000040UL |
104 | #define F_VALIDATE_UTF8 0x00000020UL |
107 | #define F_VALIDATE_UTF8 0x00000080UL |
105 | |
108 | |
106 | #define INIT_SIZE 32 // initial scalar size to be allocated |
109 | #define INIT_SIZE 32 // initial scalar size to be allocated |
107 | |
110 | |
108 | #define SB do { |
111 | #define SB do { |
109 | #define SE } while (0) |
112 | #define SE } while (0) |
… | |
… | |
275 | encode_tag (enc_t *enc, UV tag) |
278 | encode_tag (enc_t *enc, UV tag) |
276 | { |
279 | { |
277 | encode_uint (enc, MAJOR_TAG, tag); |
280 | encode_uint (enc, MAJOR_TAG, tag); |
278 | } |
281 | } |
279 | |
282 | |
|
|
283 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
|
|
284 | ecb_noinline static void |
|
|
285 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
|
|
286 | { |
|
|
287 | STRLEN ulen = len; |
|
|
288 | U8 *p, *pend = (U8 *)str + len; |
|
|
289 | |
|
|
290 | for (p = (U8 *)str; p < pend; ++p) |
|
|
291 | ulen += *p >> 7; // count set high bits |
|
|
292 | |
|
|
293 | encode_uint (enc, MAJOR_TEXT, ulen); |
|
|
294 | |
|
|
295 | need (enc, ulen); |
|
|
296 | for (p = (U8 *)str; p < pend; ++p) |
|
|
297 | if (*p < 0x80) |
|
|
298 | *enc->cur++ = *p; |
|
|
299 | else |
|
|
300 | { |
|
|
301 | *enc->cur++ = 0xc0 + (*p >> 6); |
|
|
302 | *enc->cur++ = 0x80 + (*p & 63); |
|
|
303 | } |
|
|
304 | } |
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|
305 | |
280 | ecb_inline void |
306 | ecb_inline void |
281 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
307 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
282 | { |
308 | { |
|
|
309 | if (ecb_expect_false (upgrade_utf8)) |
|
|
310 | if (!utf8) |
|
|
311 | { |
|
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312 | encode_str_utf8 (enc, utf8, str, len); |
|
|
313 | return; |
|
|
314 | } |
|
|
315 | |
283 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
316 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
284 | need (enc, len); |
317 | need (enc, len); |
285 | memcpy (enc->cur, str, len); |
318 | memcpy (enc->cur, str, len); |
286 | enc->cur += len; |
319 | enc->cur += len; |
287 | } |
320 | } |
288 | |
321 | |
289 | static void |
322 | ecb_inline void |
290 | encode_strref (enc_t *enc, int utf8, char *str, STRLEN len) |
323 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
291 | { |
324 | { |
292 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
325 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
293 | { |
326 | { |
294 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
327 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
295 | |
328 | |
… | |
… | |
306 | sv_setuv (*svp, enc->stringref_idx); |
339 | sv_setuv (*svp, enc->stringref_idx); |
307 | ++enc->stringref_idx; |
340 | ++enc->stringref_idx; |
308 | } |
341 | } |
309 | } |
342 | } |
310 | |
343 | |
311 | encode_str (enc, utf8, str, len); |
344 | encode_str (enc, upgrade_utf8, utf8, str, len); |
312 | } |
345 | } |
313 | |
346 | |
314 | static void encode_sv (enc_t *enc, SV *sv); |
347 | static void encode_sv (enc_t *enc, SV *sv); |
315 | |
348 | |
316 | static void |
349 | static void |
… | |
… | |
323 | |
356 | |
324 | ++enc->depth; |
357 | ++enc->depth; |
325 | |
358 | |
326 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
359 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
327 | |
360 | |
|
|
361 | if (SvMAGICAL (av)) |
328 | for (i = 0; i <= len; ++i) |
362 | for (i = 0; i <= len; ++i) |
329 | { |
363 | { |
330 | SV **svp = av_fetch (av, i, 0); |
364 | SV **svp = av_fetch (av, i, 0); |
331 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
365 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
332 | } |
366 | } |
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367 | else |
|
|
368 | for (i = 0; i <= len; ++i) |
|
|
369 | { |
|
|
370 | SV *sv = AvARRAY (av)[i]; |
|
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371 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
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|
372 | } |
333 | |
373 | |
334 | --enc->depth; |
374 | --enc->depth; |
335 | } |
375 | } |
336 | |
376 | |
337 | static void |
377 | static void |
… | |
… | |
355 | while ((he = hv_iternext (hv))) |
395 | while ((he = hv_iternext (hv))) |
356 | { |
396 | { |
357 | if (HeKLEN (he) == HEf_SVKEY) |
397 | if (HeKLEN (he) == HEf_SVKEY) |
358 | encode_sv (enc, HeSVKEY (he)); |
398 | encode_sv (enc, HeSVKEY (he)); |
359 | else |
399 | else |
360 | encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
400 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
361 | |
401 | |
362 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
402 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
363 | } |
403 | } |
364 | |
404 | |
365 | if (mg) |
405 | if (mg) |
… | |
… | |
441 | |
481 | |
442 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
482 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
443 | { |
483 | { |
444 | dSP; |
484 | dSP; |
445 | |
485 | |
446 | ENTER; SAVETMPS; PUSHMARK (SP); |
486 | ENTER; SAVETMPS; |
|
|
487 | PUSHMARK (SP); |
447 | // we re-bless the reference to get overload and other niceties right |
488 | // we re-bless the reference to get overload and other niceties right |
448 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
489 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
449 | |
490 | |
450 | PUTBACK; |
491 | PUTBACK; |
451 | // G_SCALAR ensures that return value is 1 |
492 | // G_SCALAR ensures that return value is 1 |
… | |
… | |
464 | } |
505 | } |
465 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
506 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
466 | { |
507 | { |
467 | dSP; |
508 | dSP; |
468 | |
509 | |
469 | ENTER; SAVETMPS; PUSHMARK (SP); |
510 | ENTER; SAVETMPS; |
|
|
511 | SAVESTACK_POS (); |
|
|
512 | PUSHMARK (SP); |
470 | EXTEND (SP, 2); |
513 | EXTEND (SP, 2); |
471 | // we re-bless the reference to get overload and other niceties right |
514 | // we re-bless the reference to get overload and other niceties right |
472 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
515 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
473 | PUSHs (sv_cbor); |
516 | PUSHs (sv_cbor); |
474 | |
517 | |
… | |
… | |
480 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
523 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
481 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
524 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
482 | |
525 | |
483 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
526 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
484 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
527 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
485 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
528 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
486 | |
529 | |
487 | while (count) |
530 | while (count) |
488 | encode_sv (enc, SP[1 - count--]); |
531 | encode_sv (enc, SP[1 - count--]); |
489 | |
532 | |
490 | PUTBACK; |
533 | PUTBACK; |
… | |
… | |
549 | |
592 | |
550 | if (SvPOKp (sv)) |
593 | if (SvPOKp (sv)) |
551 | { |
594 | { |
552 | STRLEN len; |
595 | STRLEN len; |
553 | char *str = SvPV (sv, len); |
596 | char *str = SvPV (sv, len); |
554 | encode_strref (enc, SvUTF8 (sv), str, len); |
597 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
555 | } |
598 | } |
556 | else if (SvNOKp (sv)) |
599 | else if (SvNOKp (sv)) |
557 | encode_nv (enc, sv); |
600 | encode_nv (enc, sv); |
558 | else if (SvIOKp (sv)) |
601 | else if (SvIOKp (sv)) |
559 | { |
602 | { |
… | |
… | |
576 | } |
619 | } |
577 | |
620 | |
578 | static SV * |
621 | static SV * |
579 | encode_cbor (SV *scalar, CBOR *cbor) |
622 | encode_cbor (SV *scalar, CBOR *cbor) |
580 | { |
623 | { |
581 | enc_t enc = { }; |
624 | enc_t enc = { 0 }; |
582 | |
625 | |
583 | enc.cbor = *cbor; |
626 | enc.cbor = *cbor; |
584 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
627 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
585 | enc.cur = SvPVX (enc.sv); |
628 | enc.cur = SvPVX (enc.sv); |
586 | enc.end = SvEND (enc.sv); |
629 | enc.end = SvEND (enc.sv); |
… | |
… | |
736 | { |
779 | { |
737 | // for speed reasons, we specialcase single-string |
780 | // for speed reasons, we specialcase single-string |
738 | // byte or utf-8 strings as keys, but only when !stringref |
781 | // byte or utf-8 strings as keys, but only when !stringref |
739 | |
782 | |
740 | if (ecb_expect_true (!dec->stringref)) |
783 | if (ecb_expect_true (!dec->stringref)) |
741 | if (ecb_expect_true ((*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
784 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
742 | { |
785 | { |
743 | I32 len = decode_uint (dec); |
786 | I32 len = decode_uint (dec); |
744 | char *key = (char *)dec->cur; |
787 | char *key = (char *)dec->cur; |
745 | |
788 | |
|
|
789 | WANT (len); |
746 | dec->cur += len; |
790 | dec->cur += len; |
747 | |
791 | |
748 | hv_store (hv, key, len, decode_sv (dec), 0); |
792 | hv_store (hv, key, len, decode_sv (dec), 0); |
749 | |
793 | |
750 | return; |
794 | return; |
751 | } |
795 | } |
752 | else if (ecb_expect_true ((*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
796 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
753 | { |
797 | { |
754 | I32 len = decode_uint (dec); |
798 | I32 len = decode_uint (dec); |
755 | char *key = (char *)dec->cur; |
799 | char *key = (char *)dec->cur; |
756 | |
800 | |
|
|
801 | WANT (len); |
757 | dec->cur += len; |
802 | dec->cur += len; |
758 | |
803 | |
759 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
804 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
760 | if (!is_utf8_string (key, len)) |
805 | if (!is_utf8_string (key, len)) |
761 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
806 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
… | |
… | |
897 | sv = newRV_noinc (decode_sv (dec)); |
942 | sv = newRV_noinc (decode_sv (dec)); |
898 | break; |
943 | break; |
899 | |
944 | |
900 | case CBOR_TAG_STRINGREF_NAMESPACE: |
945 | case CBOR_TAG_STRINGREF_NAMESPACE: |
901 | { |
946 | { |
|
|
947 | // do nmot use SAVETMPS/FREETMPS, as these will |
|
|
948 | // erase mortalised caches, e.g. "shareable" |
902 | ENTER; SAVETMPS; |
949 | ENTER; |
903 | |
950 | |
904 | SAVESPTR (dec->stringref); |
951 | SAVESPTR (dec->stringref); |
905 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
952 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
906 | |
953 | |
907 | sv = decode_sv (dec); |
954 | sv = decode_sv (dec); |
908 | |
955 | |
909 | FREETMPS; LEAVE; |
956 | LEAVE; |
910 | } |
957 | } |
911 | break; |
958 | break; |
912 | |
959 | |
913 | case CBOR_TAG_STRINGREF: |
960 | case CBOR_TAG_STRINGREF: |
914 | { |
961 | { |
… | |
… | |
984 | if (!method) |
1031 | if (!method) |
985 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1032 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
986 | |
1033 | |
987 | dSP; |
1034 | dSP; |
988 | |
1035 | |
989 | ENTER; SAVETMPS; PUSHMARK (SP); |
1036 | ENTER; SAVETMPS; |
|
|
1037 | PUSHMARK (SP); |
990 | EXTEND (SP, len + 1); |
1038 | EXTEND (SP, len + 1); |
991 | // we re-bless the reference to get overload and other niceties right |
1039 | // we re-bless the reference to get overload and other niceties right |
992 | PUSHs (*av_fetch (av, 0, 1)); |
1040 | PUSHs (*av_fetch (av, 0, 1)); |
993 | PUSHs (sv_cbor); |
1041 | PUSHs (sv_cbor); |
994 | |
1042 | |
… | |
… | |
1019 | default: |
1067 | default: |
1020 | { |
1068 | { |
1021 | sv = decode_sv (dec); |
1069 | sv = decode_sv (dec); |
1022 | |
1070 | |
1023 | dSP; |
1071 | dSP; |
1024 | ENTER; SAVETMPS; PUSHMARK (SP); |
1072 | ENTER; SAVETMPS; |
|
|
1073 | SAVESTACK_POS (); |
|
|
1074 | PUSHMARK (SP); |
1025 | EXTEND (SP, 2); |
1075 | EXTEND (SP, 2); |
1026 | PUSHs (newSVuv (tag)); |
1076 | PUSHs (newSVuv (tag)); |
1027 | PUSHs (sv); |
1077 | PUSHs (sv); |
1028 | |
1078 | |
1029 | PUTBACK; |
1079 | PUTBACK; |
… | |
… | |
1155 | } |
1205 | } |
1156 | |
1206 | |
1157 | static SV * |
1207 | static SV * |
1158 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1208 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1159 | { |
1209 | { |
1160 | dec_t dec = { }; |
1210 | dec_t dec = { 0 }; |
1161 | SV *sv; |
1211 | SV *sv; |
1162 | STRLEN len; |
1212 | STRLEN len; |
1163 | char *data = SvPVbyte (string, len); |
1213 | char *data = SvPVbyte (string, len); |
1164 | |
1214 | |
1165 | if (len > cbor->max_size && cbor->max_size) |
1215 | if (len > cbor->max_size && cbor->max_size) |
… | |
… | |
1256 | |
1306 | |
1257 | int major = *p >> MAJOR_SHIFT; |
1307 | int major = *p >> MAJOR_SHIFT; |
1258 | |
1308 | |
1259 | switch (major) |
1309 | switch (major) |
1260 | { |
1310 | { |
|
|
1311 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1312 | ++count; // tags merely prefix another value |
|
|
1313 | break; |
|
|
1314 | |
1261 | case MAJOR_BYTES >> MAJOR_SHIFT: |
1315 | case MAJOR_BYTES >> MAJOR_SHIFT: |
1262 | case MAJOR_TEXT >> MAJOR_SHIFT: |
1316 | case MAJOR_TEXT >> MAJOR_SHIFT: |
1263 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
1317 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
1264 | case MAJOR_MAP >> MAJOR_SHIFT: |
1318 | case MAJOR_MAP >> MAJOR_SHIFT: |
1265 | { |
1319 | { |
… | |
… | |
1370 | shrink = F_SHRINK |
1424 | shrink = F_SHRINK |
1371 | allow_unknown = F_ALLOW_UNKNOWN |
1425 | allow_unknown = F_ALLOW_UNKNOWN |
1372 | allow_sharing = F_ALLOW_SHARING |
1426 | allow_sharing = F_ALLOW_SHARING |
1373 | allow_cycles = F_ALLOW_CYCLES |
1427 | allow_cycles = F_ALLOW_CYCLES |
1374 | pack_strings = F_PACK_STRINGS |
1428 | pack_strings = F_PACK_STRINGS |
|
|
1429 | text_keys = F_TEXT_KEYS |
|
|
1430 | text_strings = F_TEXT_STRINGS |
1375 | validate_utf8 = F_VALIDATE_UTF8 |
1431 | validate_utf8 = F_VALIDATE_UTF8 |
1376 | PPCODE: |
1432 | PPCODE: |
1377 | { |
1433 | { |
1378 | if (enable) |
1434 | if (enable) |
1379 | self->flags |= ix; |
1435 | self->flags |= ix; |
… | |
… | |
1388 | get_shrink = F_SHRINK |
1444 | get_shrink = F_SHRINK |
1389 | get_allow_unknown = F_ALLOW_UNKNOWN |
1445 | get_allow_unknown = F_ALLOW_UNKNOWN |
1390 | get_allow_sharing = F_ALLOW_SHARING |
1446 | get_allow_sharing = F_ALLOW_SHARING |
1391 | get_allow_cycles = F_ALLOW_CYCLES |
1447 | get_allow_cycles = F_ALLOW_CYCLES |
1392 | get_pack_strings = F_PACK_STRINGS |
1448 | get_pack_strings = F_PACK_STRINGS |
|
|
1449 | get_text_keys = F_TEXT_KEYS |
|
|
1450 | get_text_strings = F_TEXT_STRINGS |
1393 | get_validate_utf8 = F_VALIDATE_UTF8 |
1451 | get_validate_utf8 = F_VALIDATE_UTF8 |
1394 | PPCODE: |
1452 | PPCODE: |
1395 | XPUSHs (boolSV (self->flags & ix)); |
1453 | XPUSHs (boolSV (self->flags & ix)); |
1396 | |
1454 | |
1397 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1455 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
… | |
… | |
1448 | PUSHs (sv); |
1506 | PUSHs (sv); |
1449 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1507 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1450 | } |
1508 | } |
1451 | |
1509 | |
1452 | void incr_parse (CBOR *self, SV *cborstr) |
1510 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1511 | ALIAS: |
|
|
1512 | incr_parse_multiple = 1 |
1453 | PPCODE: |
1513 | PPCODE: |
1454 | { |
1514 | { |
1455 | if (SvUTF8 (cborstr)) |
1515 | if (SvUTF8 (cborstr)) |
1456 | sv_utf8_downgrade (cborstr, 0); |
1516 | sv_utf8_downgrade (cborstr, 0); |
1457 | |
1517 | |
… | |
… | |
1487 | av_push (self->incr_count, newSViv (1)); |
1547 | av_push (self->incr_count, newSViv (1)); |
1488 | |
1548 | |
1489 | self->incr_pos = 0; |
1549 | self->incr_pos = 0; |
1490 | self->incr_need = self->incr_pos + 1; |
1550 | self->incr_need = self->incr_pos + 1; |
1491 | } |
1551 | } |
1492 | while (GIMME_V == G_ARRAY); |
1552 | while (ix); |
1493 | } |
1553 | } |
1494 | |
1554 | |
1495 | void incr_reset (CBOR *self) |
1555 | void incr_reset (CBOR *self) |
1496 | CODE: |
1556 | CODE: |
1497 | { |
1557 | { |