… | |
… | |
23 | #endif |
23 | #endif |
24 | #ifndef SvREFCNT_dec_NN |
24 | #ifndef SvREFCNT_dec_NN |
25 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
25 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
26 | #endif |
26 | #endif |
27 | |
27 | |
|
|
28 | // known major and minor types |
|
|
29 | enum cbor_type |
|
|
30 | { |
|
|
31 | MAJOR_SHIFT = 5, |
|
|
32 | MINOR_MASK = 0x1f, |
|
|
33 | |
|
|
34 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
|
|
35 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
|
|
36 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
|
|
37 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
|
|
38 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
|
|
39 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
|
|
40 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
|
|
41 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
|
|
42 | |
|
|
43 | // INT/STRING/ARRAY/MAP subtypes |
|
|
44 | LENGTH_EXT1 = 24, |
|
|
45 | LENGTH_EXT2 = 25, |
|
|
46 | LENGTH_EXT4 = 26, |
|
|
47 | LENGTH_EXT8 = 27, |
|
|
48 | |
|
|
49 | // SIMPLE types (effectively MISC subtypes) |
|
|
50 | SIMPLE_FALSE = 20, |
|
|
51 | SIMPLE_TRUE = 21, |
|
|
52 | SIMPLE_NULL = 22, |
|
|
53 | SIMPLE_UNDEF = 23, |
|
|
54 | |
|
|
55 | // MISC subtype (unused) |
|
|
56 | MISC_EXT1 = 24, |
|
|
57 | MISC_FLOAT16 = 25, |
|
|
58 | MISC_FLOAT32 = 26, |
|
|
59 | MISC_FLOAT64 = 27, |
|
|
60 | |
|
|
61 | // BYTES/TEXT/ARRAY/MAP |
|
|
62 | MINOR_INDEF = 31, |
|
|
63 | }; |
|
|
64 | |
28 | // known tags |
65 | // known tags |
29 | enum cbor_tag |
66 | enum cbor_tag |
30 | { |
67 | { |
31 | // extensions |
68 | // extensions |
32 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
69 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
33 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
70 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
34 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
71 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
35 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
72 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
36 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
73 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
37 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
74 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
38 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
75 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
39 | |
76 | |
40 | // rfc7049 |
77 | // rfc7049 |
41 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
78 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
42 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
79 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
43 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
80 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
44 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
81 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
45 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
82 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
46 | CBOR_TAG_BIGFLOAT = 5, // array |
83 | CBOR_TAG_BIGFLOAT = 5, // array |
47 | |
84 | |
48 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
85 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
49 | CBOR_TAG_CONV_B64 = 22, // base64, any |
86 | CBOR_TAG_CONV_B64 = 22, // base64, any |
50 | CBOR_TAG_CONV_HEX = 23, // base16, any |
87 | CBOR_TAG_CONV_HEX = 23, // base16, any |
51 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
88 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
52 | |
89 | |
53 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
90 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
54 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
91 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
55 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
92 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
56 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
93 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
57 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
94 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
58 | |
95 | |
59 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
96 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
60 | }; |
97 | }; |
61 | |
98 | |
62 | #define F_SHRINK 0x00000001UL |
99 | #define F_SHRINK 0x00000001UL |
63 | #define F_ALLOW_UNKNOWN 0x00000002UL |
100 | #define F_ALLOW_UNKNOWN 0x00000002UL |
64 | #define F_ALLOW_SHARING 0x00000004UL |
101 | #define F_ALLOW_SHARING 0x00000004UL |
|
|
102 | #define F_ALLOW_CYCLES 0x00000008UL |
65 | #define F_PACK_STRINGS 0x00000008UL |
103 | #define F_PACK_STRINGS 0x00000010UL |
|
|
104 | #define F_VALIDATE_UTF8 0x00000020UL |
66 | |
105 | |
67 | #define INIT_SIZE 32 // initial scalar size to be allocated |
106 | #define INIT_SIZE 32 // initial scalar size to be allocated |
68 | |
107 | |
69 | #define SB do { |
108 | #define SB do { |
70 | #define SE } while (0) |
109 | #define SE } while (0) |
… | |
… | |
89 | typedef struct { |
128 | typedef struct { |
90 | U32 flags; |
129 | U32 flags; |
91 | U32 max_depth; |
130 | U32 max_depth; |
92 | STRLEN max_size; |
131 | STRLEN max_size; |
93 | SV *filter; |
132 | SV *filter; |
|
|
133 | |
|
|
134 | // for the incremental parser |
|
|
135 | STRLEN incr_pos; // the current offset into the text |
|
|
136 | STRLEN incr_need; // minimum bytes needed to decode |
|
|
137 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
94 | } CBOR; |
138 | } CBOR; |
95 | |
139 | |
96 | ecb_inline void |
140 | ecb_inline void |
97 | cbor_init (CBOR *cbor) |
141 | cbor_init (CBOR *cbor) |
98 | { |
142 | { |
… | |
… | |
102 | |
146 | |
103 | ecb_inline void |
147 | ecb_inline void |
104 | cbor_free (CBOR *cbor) |
148 | cbor_free (CBOR *cbor) |
105 | { |
149 | { |
106 | SvREFCNT_dec (cbor->filter); |
150 | SvREFCNT_dec (cbor->filter); |
|
|
151 | SvREFCNT_dec (cbor->incr_count); |
107 | } |
152 | } |
108 | |
153 | |
109 | ///////////////////////////////////////////////////////////////////////////// |
154 | ///////////////////////////////////////////////////////////////////////////// |
110 | // utility functions |
155 | // utility functions |
111 | |
156 | |
… | |
… | |
189 | static void |
234 | static void |
190 | encode_uint (enc_t *enc, int major, UV len) |
235 | encode_uint (enc_t *enc, int major, UV len) |
191 | { |
236 | { |
192 | need (enc, 9); |
237 | need (enc, 9); |
193 | |
238 | |
194 | if (ecb_expect_true (len < 24)) |
239 | if (ecb_expect_true (len < LENGTH_EXT1)) |
195 | *enc->cur++ = major | len; |
240 | *enc->cur++ = major | len; |
196 | else if (ecb_expect_true (len <= 0xff)) |
241 | else if (ecb_expect_true (len <= 0xffU)) |
197 | { |
242 | { |
198 | *enc->cur++ = major | 24; |
243 | *enc->cur++ = major | LENGTH_EXT1; |
199 | *enc->cur++ = len; |
244 | *enc->cur++ = len; |
200 | } |
245 | } |
201 | else if (len <= 0xffff) |
246 | else if (len <= 0xffffU) |
202 | { |
247 | { |
203 | *enc->cur++ = major | 25; |
248 | *enc->cur++ = major | LENGTH_EXT2; |
204 | *enc->cur++ = len >> 8; |
249 | *enc->cur++ = len >> 8; |
205 | *enc->cur++ = len; |
250 | *enc->cur++ = len; |
206 | } |
251 | } |
207 | else if (len <= 0xffffffff) |
252 | else if (len <= 0xffffffffU) |
208 | { |
253 | { |
209 | *enc->cur++ = major | 26; |
254 | *enc->cur++ = major | LENGTH_EXT4; |
210 | *enc->cur++ = len >> 24; |
255 | *enc->cur++ = len >> 24; |
211 | *enc->cur++ = len >> 16; |
256 | *enc->cur++ = len >> 16; |
212 | *enc->cur++ = len >> 8; |
257 | *enc->cur++ = len >> 8; |
213 | *enc->cur++ = len; |
258 | *enc->cur++ = len; |
214 | } |
259 | } |
215 | else |
260 | else |
216 | { |
261 | { |
217 | *enc->cur++ = major | 27; |
262 | *enc->cur++ = major | LENGTH_EXT8; |
218 | *enc->cur++ = len >> 56; |
263 | *enc->cur++ = len >> 56; |
219 | *enc->cur++ = len >> 48; |
264 | *enc->cur++ = len >> 48; |
220 | *enc->cur++ = len >> 40; |
265 | *enc->cur++ = len >> 40; |
221 | *enc->cur++ = len >> 32; |
266 | *enc->cur++ = len >> 32; |
222 | *enc->cur++ = len >> 24; |
267 | *enc->cur++ = len >> 24; |
… | |
… | |
227 | } |
272 | } |
228 | |
273 | |
229 | ecb_inline void |
274 | ecb_inline void |
230 | encode_tag (enc_t *enc, UV tag) |
275 | encode_tag (enc_t *enc, UV tag) |
231 | { |
276 | { |
232 | encode_uint (enc, 0xc0, tag); |
277 | encode_uint (enc, MAJOR_TAG, tag); |
233 | } |
278 | } |
234 | |
279 | |
235 | ecb_inline void |
280 | ecb_inline void |
236 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
281 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
237 | { |
282 | { |
238 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
283 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
239 | need (enc, len); |
284 | need (enc, len); |
240 | memcpy (enc->cur, str, len); |
285 | memcpy (enc->cur, str, len); |
241 | enc->cur += len; |
286 | enc->cur += len; |
242 | } |
287 | } |
243 | |
288 | |
… | |
… | |
250 | |
295 | |
251 | if (SvOK (*svp)) |
296 | if (SvOK (*svp)) |
252 | { |
297 | { |
253 | // already registered, use stringref |
298 | // already registered, use stringref |
254 | encode_tag (enc, CBOR_TAG_STRINGREF); |
299 | encode_tag (enc, CBOR_TAG_STRINGREF); |
255 | encode_uint (enc, 0x00, SvUV (*svp)); |
300 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
256 | return; |
301 | return; |
257 | } |
302 | } |
258 | else if (len >= minimum_string_length (enc->stringref_idx)) |
303 | else if (len >= minimum_string_length (enc->stringref_idx)) |
259 | { |
304 | { |
260 | // register only |
305 | // register only |
… | |
… | |
276 | if (enc->depth >= enc->cbor.max_depth) |
321 | if (enc->depth >= enc->cbor.max_depth) |
277 | croak (ERR_NESTING_EXCEEDED); |
322 | croak (ERR_NESTING_EXCEEDED); |
278 | |
323 | |
279 | ++enc->depth; |
324 | ++enc->depth; |
280 | |
325 | |
281 | encode_uint (enc, 0x80, len + 1); |
326 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
282 | |
327 | |
283 | for (i = 0; i <= len; ++i) |
328 | for (i = 0; i <= len; ++i) |
284 | { |
329 | { |
285 | SV **svp = av_fetch (av, i, 0); |
330 | SV **svp = av_fetch (av, i, 0); |
286 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
331 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
… | |
… | |
301 | |
346 | |
302 | int pairs = hv_iterinit (hv); |
347 | int pairs = hv_iterinit (hv); |
303 | int mg = SvMAGICAL (hv); |
348 | int mg = SvMAGICAL (hv); |
304 | |
349 | |
305 | if (mg) |
350 | if (mg) |
306 | encode_ch (enc, 0xa0 | 31); |
351 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
307 | else |
352 | else |
308 | encode_uint (enc, 0xa0, pairs); |
353 | encode_uint (enc, MAJOR_MAP, pairs); |
309 | |
354 | |
310 | while ((he = hv_iternext (hv))) |
355 | while ((he = hv_iternext (hv))) |
311 | { |
356 | { |
312 | if (HeKLEN (he) == HEf_SVKEY) |
357 | if (HeKLEN (he) == HEf_SVKEY) |
313 | encode_sv (enc, HeSVKEY (he)); |
358 | encode_sv (enc, HeSVKEY (he)); |
… | |
… | |
316 | |
361 | |
317 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
362 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
318 | } |
363 | } |
319 | |
364 | |
320 | if (mg) |
365 | if (mg) |
321 | encode_ch (enc, 0xe0 | 31); |
366 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
322 | |
367 | |
323 | --enc->depth; |
368 | --enc->depth; |
324 | } |
369 | } |
325 | |
370 | |
326 | // encode objects, arrays and special \0=false and \1=true values. |
371 | // encode objects, arrays and special \0=false and \1=true values. |
… | |
… | |
345 | |
390 | |
346 | HV *stash = SvSTASH (sv); |
391 | HV *stash = SvSTASH (sv); |
347 | |
392 | |
348 | if (stash == boolean_stash) |
393 | if (stash == boolean_stash) |
349 | { |
394 | { |
350 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
395 | encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
351 | return; |
396 | return; |
352 | } |
397 | } |
353 | else if (stash == error_stash) |
398 | else if (stash == error_stash) |
354 | { |
399 | { |
355 | encode_ch (enc, 0xe0 | 23); |
400 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
356 | return; |
401 | return; |
357 | } |
402 | } |
358 | else if (stash == tagged_stash) |
403 | else if (stash == tagged_stash) |
359 | { |
404 | { |
360 | if (svt != SVt_PVAV) |
405 | if (svt != SVt_PVAV) |
361 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
406 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
362 | |
407 | |
363 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
408 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
364 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
409 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
365 | |
410 | |
366 | return; |
411 | return; |
367 | } |
412 | } |
368 | } |
413 | } |
… | |
… | |
376 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
421 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
377 | |
422 | |
378 | if (SvOK (*svp)) |
423 | if (SvOK (*svp)) |
379 | { |
424 | { |
380 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
425 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
381 | encode_uint (enc, 0x00, SvUV (*svp)); |
426 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
382 | return; |
427 | return; |
383 | } |
428 | } |
384 | else |
429 | else |
385 | { |
430 | { |
386 | sv_setuv (*svp, enc->shareable_idx); |
431 | sv_setuv (*svp, enc->shareable_idx); |
… | |
… | |
434 | // catch this surprisingly common error |
479 | // catch this surprisingly common error |
435 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
480 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
436 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
481 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
437 | |
482 | |
438 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
483 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
439 | encode_uint (enc, 0x80, count + 1); |
484 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
440 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
485 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
441 | |
486 | |
442 | while (count) |
487 | while (count) |
443 | encode_sv (enc, SP[1 - count--]); |
488 | encode_sv (enc, SP[1 - count--]); |
444 | |
489 | |
… | |
… | |
466 | { |
511 | { |
467 | double nv = SvNVX (sv); |
512 | double nv = SvNVX (sv); |
468 | |
513 | |
469 | need (enc, 9); |
514 | need (enc, 9); |
470 | |
515 | |
471 | if (ecb_expect_false (nv == (U32)nv)) |
516 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
472 | encode_uint (enc, 0x00, (U32)nv); |
517 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
473 | //TODO: maybe I32? |
518 | //TODO: maybe I32? |
474 | else if (ecb_expect_false (nv == (float)nv)) |
519 | else if (ecb_expect_false (nv == (float)nv)) |
475 | { |
520 | { |
476 | uint32_t fp = ecb_float_to_binary32 (nv); |
521 | uint32_t fp = ecb_float_to_binary32 (nv); |
477 | |
522 | |
478 | *enc->cur++ = 0xe0 | 26; |
523 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
479 | |
524 | |
480 | if (!ecb_big_endian ()) |
525 | if (!ecb_big_endian ()) |
481 | fp = ecb_bswap32 (fp); |
526 | fp = ecb_bswap32 (fp); |
482 | |
527 | |
483 | memcpy (enc->cur, &fp, 4); |
528 | memcpy (enc->cur, &fp, 4); |
… | |
… | |
485 | } |
530 | } |
486 | else |
531 | else |
487 | { |
532 | { |
488 | uint64_t fp = ecb_double_to_binary64 (nv); |
533 | uint64_t fp = ecb_double_to_binary64 (nv); |
489 | |
534 | |
490 | *enc->cur++ = 0xe0 | 27; |
535 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
491 | |
536 | |
492 | if (!ecb_big_endian ()) |
537 | if (!ecb_big_endian ()) |
493 | fp = ecb_bswap64 (fp); |
538 | fp = ecb_bswap64 (fp); |
494 | |
539 | |
495 | memcpy (enc->cur, &fp, 8); |
540 | memcpy (enc->cur, &fp, 8); |
… | |
… | |
511 | else if (SvNOKp (sv)) |
556 | else if (SvNOKp (sv)) |
512 | encode_nv (enc, sv); |
557 | encode_nv (enc, sv); |
513 | else if (SvIOKp (sv)) |
558 | else if (SvIOKp (sv)) |
514 | { |
559 | { |
515 | if (SvIsUV (sv)) |
560 | if (SvIsUV (sv)) |
516 | encode_uint (enc, 0x00, SvUVX (sv)); |
561 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
517 | else if (SvIVX (sv) >= 0) |
562 | else if (SvIVX (sv) >= 0) |
518 | encode_uint (enc, 0x00, SvIVX (sv)); |
563 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
519 | else |
564 | else |
520 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
565 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
521 | } |
566 | } |
522 | else if (SvROK (sv)) |
567 | else if (SvROK (sv)) |
523 | encode_rv (enc, SvRV (sv)); |
568 | encode_rv (enc, SvRV (sv)); |
524 | else if (!SvOK (sv)) |
569 | else if (!SvOK (sv)) |
525 | encode_ch (enc, 0xe0 | 22); |
570 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
526 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
571 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
527 | encode_ch (enc, 0xe0 | 23); |
572 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
528 | else |
573 | else |
529 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
574 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
530 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
575 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
531 | } |
576 | } |
532 | |
577 | |
… | |
… | |
585 | #define DEC_DEC_DEPTH --dec->depth |
630 | #define DEC_DEC_DEPTH --dec->depth |
586 | |
631 | |
587 | static UV |
632 | static UV |
588 | decode_uint (dec_t *dec) |
633 | decode_uint (dec_t *dec) |
589 | { |
634 | { |
590 | switch (*dec->cur & 31) |
635 | U8 m = *dec->cur & MINOR_MASK; |
591 | { |
636 | ++dec->cur; |
592 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
593 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
594 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
595 | return *dec->cur++ & 31; |
|
|
596 | |
637 | |
597 | case 24: |
638 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
639 | return m; |
|
|
640 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
641 | { |
598 | WANT (2); |
642 | WANT (1); |
599 | dec->cur += 2; |
643 | dec->cur += 1; |
600 | return dec->cur[-1]; |
644 | return dec->cur[-1]; |
601 | |
645 | } |
602 | case 25: |
646 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
647 | { |
603 | WANT (3); |
648 | WANT (2); |
604 | dec->cur += 3; |
649 | dec->cur += 2; |
605 | return (((UV)dec->cur[-2]) << 8) |
650 | return (((UV)dec->cur[-2]) << 8) |
606 | | ((UV)dec->cur[-1]); |
651 | | ((UV)dec->cur[-1]); |
607 | |
652 | } |
608 | case 26: |
653 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
654 | { |
609 | WANT (5); |
655 | WANT (4); |
610 | dec->cur += 5; |
656 | dec->cur += 4; |
611 | return (((UV)dec->cur[-4]) << 24) |
657 | return (((UV)dec->cur[-4]) << 24) |
612 | | (((UV)dec->cur[-3]) << 16) |
658 | | (((UV)dec->cur[-3]) << 16) |
613 | | (((UV)dec->cur[-2]) << 8) |
659 | | (((UV)dec->cur[-2]) << 8) |
614 | | ((UV)dec->cur[-1]); |
660 | | ((UV)dec->cur[-1]); |
615 | |
661 | } |
616 | case 27: |
662 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
663 | { |
617 | WANT (9); |
664 | WANT (8); |
618 | dec->cur += 9; |
665 | dec->cur += 8; |
619 | |
666 | |
620 | return |
667 | return |
621 | #if UVSIZE < 8 |
668 | #if UVSIZE < 8 |
622 | 0 |
669 | 0 |
623 | #else |
670 | #else |
624 | (((UV)dec->cur[-8]) << 56) |
671 | (((UV)dec->cur[-8]) << 56) |
625 | | (((UV)dec->cur[-7]) << 48) |
672 | | (((UV)dec->cur[-7]) << 48) |
626 | | (((UV)dec->cur[-6]) << 40) |
673 | | (((UV)dec->cur[-6]) << 40) |
627 | | (((UV)dec->cur[-5]) << 32) |
674 | | (((UV)dec->cur[-5]) << 32) |
628 | #endif |
675 | #endif |
629 | | (((UV)dec->cur[-4]) << 24) |
676 | | (((UV)dec->cur[-4]) << 24) |
630 | | (((UV)dec->cur[-3]) << 16) |
677 | | (((UV)dec->cur[-3]) << 16) |
631 | | (((UV)dec->cur[-2]) << 8) |
678 | | (((UV)dec->cur[-2]) << 8) |
632 | | ((UV)dec->cur[-1]); |
679 | | ((UV)dec->cur[-1]); |
633 | |
680 | } |
634 | default: |
681 | else |
635 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
682 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
636 | } |
|
|
637 | |
683 | |
638 | fail: |
684 | fail: |
639 | return 0; |
685 | return 0; |
640 | } |
686 | } |
641 | |
687 | |
… | |
… | |
646 | { |
692 | { |
647 | AV *av = newAV (); |
693 | AV *av = newAV (); |
648 | |
694 | |
649 | DEC_INC_DEPTH; |
695 | DEC_INC_DEPTH; |
650 | |
696 | |
651 | if ((*dec->cur & 31) == 31) |
697 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
652 | { |
698 | { |
653 | ++dec->cur; |
699 | ++dec->cur; |
654 | |
700 | |
655 | for (;;) |
701 | for (;;) |
656 | { |
702 | { |
657 | WANT (1); |
703 | WANT (1); |
658 | |
704 | |
659 | if (*dec->cur == (0xe0 | 31)) |
705 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
660 | { |
706 | { |
661 | ++dec->cur; |
707 | ++dec->cur; |
662 | break; |
708 | break; |
663 | } |
709 | } |
664 | |
710 | |
… | |
… | |
667 | } |
713 | } |
668 | else |
714 | else |
669 | { |
715 | { |
670 | int i, len = decode_uint (dec); |
716 | int i, len = decode_uint (dec); |
671 | |
717 | |
|
|
718 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
672 | av_fill (av, len - 1); |
719 | av_fill (av, len - 1); |
673 | |
720 | |
674 | for (i = 0; i < len; ++i) |
721 | for (i = 0; i < len; ++i) |
675 | AvARRAY (av)[i] = decode_sv (dec); |
722 | AvARRAY (av)[i] = decode_sv (dec); |
676 | } |
723 | } |
… | |
… | |
689 | { |
736 | { |
690 | // for speed reasons, we specialcase single-string |
737 | // for speed reasons, we specialcase single-string |
691 | // byte or utf-8 strings as keys, but only when !stringref |
738 | // byte or utf-8 strings as keys, but only when !stringref |
692 | |
739 | |
693 | if (ecb_expect_true (!dec->stringref)) |
740 | if (ecb_expect_true (!dec->stringref)) |
694 | if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
741 | if (ecb_expect_true ((*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
695 | { |
742 | { |
696 | I32 len = decode_uint (dec); |
743 | I32 len = decode_uint (dec); |
697 | char *key = (char *)dec->cur; |
744 | char *key = (char *)dec->cur; |
698 | |
745 | |
699 | dec->cur += len; |
746 | dec->cur += len; |
700 | |
747 | |
701 | if (ecb_expect_false (dec->stringref)) |
|
|
702 | av_push (dec->stringref, newSVpvn (key, len)); |
|
|
703 | |
|
|
704 | hv_store (hv, key, len, decode_sv (dec), 0); |
748 | hv_store (hv, key, len, decode_sv (dec), 0); |
705 | |
749 | |
706 | return; |
750 | return; |
707 | } |
751 | } |
708 | else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
752 | else if (ecb_expect_true ((*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
709 | { |
753 | { |
710 | I32 len = decode_uint (dec); |
754 | I32 len = decode_uint (dec); |
711 | char *key = (char *)dec->cur; |
755 | char *key = (char *)dec->cur; |
712 | |
756 | |
713 | dec->cur += len; |
757 | dec->cur += len; |
714 | |
758 | |
715 | if (ecb_expect_false (dec->stringref)) |
759 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
716 | av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
760 | if (!is_utf8_string (key, len)) |
|
|
761 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
717 | |
762 | |
718 | hv_store (hv, key, -len, decode_sv (dec), 0); |
763 | hv_store (hv, key, -len, decode_sv (dec), 0); |
719 | |
764 | |
720 | return; |
765 | return; |
721 | } |
766 | } |
… | |
… | |
723 | SV *k = decode_sv (dec); |
768 | SV *k = decode_sv (dec); |
724 | SV *v = decode_sv (dec); |
769 | SV *v = decode_sv (dec); |
725 | |
770 | |
726 | hv_store_ent (hv, k, v, 0); |
771 | hv_store_ent (hv, k, v, 0); |
727 | SvREFCNT_dec (k); |
772 | SvREFCNT_dec (k); |
|
|
773 | |
|
|
774 | fail: |
|
|
775 | ; |
728 | } |
776 | } |
729 | |
777 | |
730 | static SV * |
778 | static SV * |
731 | decode_hv (dec_t *dec) |
779 | decode_hv (dec_t *dec) |
732 | { |
780 | { |
733 | HV *hv = newHV (); |
781 | HV *hv = newHV (); |
734 | |
782 | |
735 | DEC_INC_DEPTH; |
783 | DEC_INC_DEPTH; |
736 | |
784 | |
737 | if ((*dec->cur & 31) == 31) |
785 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
738 | { |
786 | { |
739 | ++dec->cur; |
787 | ++dec->cur; |
740 | |
788 | |
741 | for (;;) |
789 | for (;;) |
742 | { |
790 | { |
743 | WANT (1); |
791 | WANT (1); |
744 | |
792 | |
745 | if (*dec->cur == (0xe0 | 31)) |
793 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
746 | { |
794 | { |
747 | ++dec->cur; |
795 | ++dec->cur; |
748 | break; |
796 | break; |
749 | } |
797 | } |
750 | |
798 | |
… | |
… | |
771 | static SV * |
819 | static SV * |
772 | decode_str (dec_t *dec, int utf8) |
820 | decode_str (dec_t *dec, int utf8) |
773 | { |
821 | { |
774 | SV *sv = 0; |
822 | SV *sv = 0; |
775 | |
823 | |
776 | if ((*dec->cur & 31) == 31) |
824 | if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
777 | { |
825 | { |
778 | // indefinite length strings |
826 | // indefinite length strings |
779 | ++dec->cur; |
827 | ++dec->cur; |
780 | |
828 | |
781 | unsigned char major = *dec->cur & 0xe0; |
829 | U8 major = *dec->cur & MAJOR_MISC; |
782 | |
830 | |
783 | sv = newSVpvn ("", 0); |
831 | sv = newSVpvn ("", 0); |
784 | |
832 | |
785 | for (;;) |
833 | for (;;) |
786 | { |
834 | { |
787 | WANT (1); |
835 | WANT (1); |
788 | |
836 | |
789 | if ((*dec->cur ^ major) >= 31) |
837 | if ((*dec->cur - major) > LENGTH_EXT8) |
790 | if (*dec->cur == (0xe0 | 31)) |
838 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
791 | { |
839 | { |
792 | ++dec->cur; |
840 | ++dec->cur; |
793 | break; |
841 | break; |
794 | } |
842 | } |
795 | else |
843 | else |
… | |
… | |
814 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
862 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
815 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
863 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
816 | } |
864 | } |
817 | |
865 | |
818 | if (utf8) |
866 | if (utf8) |
|
|
867 | { |
|
|
868 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
869 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
870 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
871 | |
819 | SvUTF8_on (sv); |
872 | SvUTF8_on (sv); |
|
|
873 | } |
820 | |
874 | |
821 | return sv; |
875 | return sv; |
822 | |
876 | |
823 | fail: |
877 | fail: |
824 | SvREFCNT_dec (sv); |
878 | SvREFCNT_dec (sv); |
… | |
… | |
856 | } |
910 | } |
857 | break; |
911 | break; |
858 | |
912 | |
859 | case CBOR_TAG_STRINGREF: |
913 | case CBOR_TAG_STRINGREF: |
860 | { |
914 | { |
861 | if ((*dec->cur >> 5) != 0) |
915 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
862 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
916 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
863 | |
917 | |
864 | UV idx = decode_uint (dec); |
918 | UV idx = decode_uint (dec); |
865 | |
919 | |
866 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
920 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
… | |
… | |
873 | case CBOR_TAG_VALUE_SHAREABLE: |
927 | case CBOR_TAG_VALUE_SHAREABLE: |
874 | { |
928 | { |
875 | if (ecb_expect_false (!dec->shareable)) |
929 | if (ecb_expect_false (!dec->shareable)) |
876 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
930 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
877 | |
931 | |
|
|
932 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
933 | { |
878 | sv = newSV (0); |
934 | sv = newSV (0); |
879 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
935 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
880 | |
936 | |
881 | SV *osv = decode_sv (dec); |
937 | SV *osv = decode_sv (dec); |
882 | sv_setsv (sv, osv); |
938 | sv_setsv (sv, osv); |
883 | SvREFCNT_dec_NN (osv); |
939 | SvREFCNT_dec_NN (osv); |
|
|
940 | } |
|
|
941 | else |
|
|
942 | { |
|
|
943 | av_push (dec->shareable, &PL_sv_undef); |
|
|
944 | int idx = AvFILLp (dec->shareable); |
|
|
945 | sv = decode_sv (dec); |
|
|
946 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
947 | } |
884 | } |
948 | } |
885 | break; |
949 | break; |
886 | |
950 | |
887 | case CBOR_TAG_VALUE_SHAREDREF: |
951 | case CBOR_TAG_VALUE_SHAREDREF: |
888 | { |
952 | { |
889 | if ((*dec->cur >> 5) != 0) |
953 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
890 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
954 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
891 | |
955 | |
892 | UV idx = decode_uint (dec); |
956 | UV idx = decode_uint (dec); |
893 | |
957 | |
894 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
958 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
895 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
959 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
896 | |
960 | |
897 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
961 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
962 | |
|
|
963 | if (sv == &PL_sv_undef) |
|
|
964 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
898 | } |
965 | } |
899 | break; |
966 | break; |
900 | |
967 | |
901 | case CBOR_TAG_PERL_OBJECT: |
968 | case CBOR_TAG_PERL_OBJECT: |
902 | { |
969 | { |
… | |
… | |
1003 | static SV * |
1070 | static SV * |
1004 | decode_sv (dec_t *dec) |
1071 | decode_sv (dec_t *dec) |
1005 | { |
1072 | { |
1006 | WANT (1); |
1073 | WANT (1); |
1007 | |
1074 | |
1008 | switch (*dec->cur >> 5) |
1075 | switch (*dec->cur >> MAJOR_SHIFT) |
1009 | { |
1076 | { |
1010 | case 0: // unsigned int |
1077 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
1011 | return newSVuv (decode_uint (dec)); |
1078 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
1012 | case 1: // negative int |
1079 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
1013 | return newSViv (-1 - (IV)decode_uint (dec)); |
1080 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
1014 | case 2: // octet string |
1081 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
1015 | return decode_str (dec, 0); |
1082 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
1016 | case 3: // utf-8 string |
1083 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
1017 | return decode_str (dec, 1); |
1084 | |
1018 | case 4: // array |
1085 | case MAJOR_MISC >> MAJOR_SHIFT: |
1019 | return decode_av (dec); |
|
|
1020 | case 5: // map |
|
|
1021 | return decode_hv (dec); |
|
|
1022 | case 6: // tag |
|
|
1023 | return decode_tagged (dec); |
|
|
1024 | case 7: // misc |
|
|
1025 | switch (*dec->cur++ & 31) |
1086 | switch (*dec->cur++ & MINOR_MASK) |
1026 | { |
1087 | { |
1027 | case 20: |
1088 | case SIMPLE_FALSE: |
1028 | #if CBOR_SLOW |
1089 | #if CBOR_SLOW |
1029 | types_false = get_bool ("Types::Serialiser::false"); |
1090 | types_false = get_bool ("Types::Serialiser::false"); |
1030 | #endif |
1091 | #endif |
1031 | return newSVsv (types_false); |
1092 | return newSVsv (types_false); |
1032 | case 21: |
1093 | case SIMPLE_TRUE: |
1033 | #if CBOR_SLOW |
1094 | #if CBOR_SLOW |
1034 | types_true = get_bool ("Types::Serialiser::true"); |
1095 | types_true = get_bool ("Types::Serialiser::true"); |
1035 | #endif |
1096 | #endif |
1036 | return newSVsv (types_true); |
1097 | return newSVsv (types_true); |
1037 | case 22: |
1098 | case SIMPLE_NULL: |
1038 | return newSVsv (&PL_sv_undef); |
1099 | return newSVsv (&PL_sv_undef); |
1039 | case 23: |
1100 | case SIMPLE_UNDEF: |
1040 | #if CBOR_SLOW |
1101 | #if CBOR_SLOW |
1041 | types_error = get_bool ("Types::Serialiser::error"); |
1102 | types_error = get_bool ("Types::Serialiser::error"); |
1042 | #endif |
1103 | #endif |
1043 | return newSVsv (types_error); |
1104 | return newSVsv (types_error); |
1044 | |
1105 | |
1045 | case 25: |
1106 | case MISC_FLOAT16: |
1046 | { |
1107 | { |
1047 | WANT (2); |
1108 | WANT (2); |
1048 | |
1109 | |
1049 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1110 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1050 | dec->cur += 2; |
1111 | dec->cur += 2; |
1051 | |
1112 | |
1052 | return newSVnv (ecb_binary16_to_float (fp)); |
1113 | return newSVnv (ecb_binary16_to_float (fp)); |
1053 | } |
1114 | } |
1054 | |
1115 | |
1055 | case 26: |
1116 | case MISC_FLOAT32: |
1056 | { |
1117 | { |
1057 | uint32_t fp; |
1118 | uint32_t fp; |
1058 | WANT (4); |
1119 | WANT (4); |
1059 | memcpy (&fp, dec->cur, 4); |
1120 | memcpy (&fp, dec->cur, 4); |
1060 | dec->cur += 4; |
1121 | dec->cur += 4; |
… | |
… | |
1063 | fp = ecb_bswap32 (fp); |
1124 | fp = ecb_bswap32 (fp); |
1064 | |
1125 | |
1065 | return newSVnv (ecb_binary32_to_float (fp)); |
1126 | return newSVnv (ecb_binary32_to_float (fp)); |
1066 | } |
1127 | } |
1067 | |
1128 | |
1068 | case 27: |
1129 | case MISC_FLOAT64: |
1069 | { |
1130 | { |
1070 | uint64_t fp; |
1131 | uint64_t fp; |
1071 | WANT (8); |
1132 | WANT (8); |
1072 | memcpy (&fp, dec->cur, 8); |
1133 | memcpy (&fp, dec->cur, 8); |
1073 | dec->cur += 8; |
1134 | dec->cur += 8; |
… | |
… | |
1076 | fp = ecb_bswap64 (fp); |
1137 | fp = ecb_bswap64 (fp); |
1077 | |
1138 | |
1078 | return newSVnv (ecb_binary64_to_double (fp)); |
1139 | return newSVnv (ecb_binary64_to_double (fp)); |
1079 | } |
1140 | } |
1080 | |
1141 | |
1081 | // 0..19 unassigned |
1142 | // 0..19 unassigned simple |
1082 | // 24 reserved + unassigned (reserved values are not encodable) |
1143 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1144 | // 28-30 unassigned misc |
|
|
1145 | // 31 break code |
1083 | default: |
1146 | default: |
1084 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1147 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1085 | } |
1148 | } |
1086 | |
1149 | |
1087 | break; |
1150 | break; |
1088 | } |
1151 | } |
1089 | |
1152 | |
… | |
… | |
1116 | if (dec.cur != dec.end && !dec.err) |
1179 | if (dec.cur != dec.end && !dec.err) |
1117 | dec.err = "garbage after CBOR object"; |
1180 | dec.err = "garbage after CBOR object"; |
1118 | |
1181 | |
1119 | if (dec.err) |
1182 | if (dec.err) |
1120 | { |
1183 | { |
|
|
1184 | if (dec.shareable) |
|
|
1185 | { |
|
|
1186 | // need to break cyclic links, which whould all be in shareable |
|
|
1187 | int i; |
|
|
1188 | SV **svp; |
|
|
1189 | |
|
|
1190 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1191 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1192 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1193 | } |
|
|
1194 | |
1121 | SvREFCNT_dec (sv); |
1195 | SvREFCNT_dec (sv); |
1122 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1196 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1123 | } |
1197 | } |
1124 | |
1198 | |
1125 | sv = sv_2mortal (sv); |
1199 | sv = sv_2mortal (sv); |
1126 | |
1200 | |
1127 | return sv; |
1201 | return sv; |
1128 | } |
1202 | } |
1129 | |
1203 | |
|
|
1204 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1205 | // incremental parser |
|
|
1206 | |
|
|
1207 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1208 | |
|
|
1209 | // returns 0 for notyet, 1 for success or error |
|
|
1210 | static int |
|
|
1211 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1212 | { |
|
|
1213 | STRLEN cur; |
|
|
1214 | SvPV (cborstr, cur); |
|
|
1215 | |
|
|
1216 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1217 | { |
|
|
1218 | // table of integer count bytes |
|
|
1219 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1220 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1221 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1222 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1223 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1224 | }; |
|
|
1225 | |
|
|
1226 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1227 | U8 m = *p & MINOR_MASK; |
|
|
1228 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1229 | I8 ilen = incr_len[m]; |
|
|
1230 | |
|
|
1231 | self->incr_need = self->incr_pos + 1; |
|
|
1232 | |
|
|
1233 | if (ecb_expect_false (ilen < 0)) |
|
|
1234 | { |
|
|
1235 | if (m != MINOR_INDEF) |
|
|
1236 | return 1; // error |
|
|
1237 | |
|
|
1238 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1239 | { |
|
|
1240 | if (count >= 0) |
|
|
1241 | return 1; // error |
|
|
1242 | |
|
|
1243 | count = 1; |
|
|
1244 | } |
|
|
1245 | else |
|
|
1246 | { |
|
|
1247 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1248 | count = -1; |
|
|
1249 | } |
|
|
1250 | } |
|
|
1251 | else |
|
|
1252 | { |
|
|
1253 | self->incr_need += ilen; |
|
|
1254 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1255 | return 0; |
|
|
1256 | |
|
|
1257 | int major = *p >> MAJOR_SHIFT; |
|
|
1258 | |
|
|
1259 | switch (major) |
|
|
1260 | { |
|
|
1261 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1262 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1263 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1264 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1265 | { |
|
|
1266 | UV len; |
|
|
1267 | |
|
|
1268 | if (ecb_expect_false (ilen)) |
|
|
1269 | { |
|
|
1270 | len = 0; |
|
|
1271 | |
|
|
1272 | do { |
|
|
1273 | len = (len << 8) | *++p; |
|
|
1274 | } while (--ilen); |
|
|
1275 | } |
|
|
1276 | else |
|
|
1277 | len = m; |
|
|
1278 | |
|
|
1279 | switch (major) |
|
|
1280 | { |
|
|
1281 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1282 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1283 | self->incr_need += len; |
|
|
1284 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1285 | return 0; |
|
|
1286 | |
|
|
1287 | break; |
|
|
1288 | |
|
|
1289 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1290 | len <<= 1; |
|
|
1291 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1292 | if (len) |
|
|
1293 | { |
|
|
1294 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1295 | count = len + 1; |
|
|
1296 | } |
|
|
1297 | break; |
|
|
1298 | } |
|
|
1299 | } |
|
|
1300 | } |
|
|
1301 | } |
|
|
1302 | |
|
|
1303 | self->incr_pos = self->incr_need; |
|
|
1304 | |
|
|
1305 | if (count > 0) |
|
|
1306 | { |
|
|
1307 | while (!--count) |
|
|
1308 | { |
|
|
1309 | if (!AvFILLp (self->incr_count)) |
|
|
1310 | return 1; // done |
|
|
1311 | |
|
|
1312 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1313 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1317 | } |
|
|
1318 | } |
|
|
1319 | |
|
|
1320 | return 0; |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | |
1130 | ///////////////////////////////////////////////////////////////////////////// |
1324 | ///////////////////////////////////////////////////////////////////////////// |
1131 | // XS interface functions |
1325 | // XS interface functions |
1132 | |
1326 | |
1133 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1327 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1134 | |
1328 | |
… | |
… | |
1174 | void shrink (CBOR *self, int enable = 1) |
1368 | void shrink (CBOR *self, int enable = 1) |
1175 | ALIAS: |
1369 | ALIAS: |
1176 | shrink = F_SHRINK |
1370 | shrink = F_SHRINK |
1177 | allow_unknown = F_ALLOW_UNKNOWN |
1371 | allow_unknown = F_ALLOW_UNKNOWN |
1178 | allow_sharing = F_ALLOW_SHARING |
1372 | allow_sharing = F_ALLOW_SHARING |
|
|
1373 | allow_cycles = F_ALLOW_CYCLES |
1179 | pack_strings = F_PACK_STRINGS |
1374 | pack_strings = F_PACK_STRINGS |
|
|
1375 | validate_utf8 = F_VALIDATE_UTF8 |
1180 | PPCODE: |
1376 | PPCODE: |
1181 | { |
1377 | { |
1182 | if (enable) |
1378 | if (enable) |
1183 | self->flags |= ix; |
1379 | self->flags |= ix; |
1184 | else |
1380 | else |
… | |
… | |
1190 | void get_shrink (CBOR *self) |
1386 | void get_shrink (CBOR *self) |
1191 | ALIAS: |
1387 | ALIAS: |
1192 | get_shrink = F_SHRINK |
1388 | get_shrink = F_SHRINK |
1193 | get_allow_unknown = F_ALLOW_UNKNOWN |
1389 | get_allow_unknown = F_ALLOW_UNKNOWN |
1194 | get_allow_sharing = F_ALLOW_SHARING |
1390 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1391 | get_allow_cycles = F_ALLOW_CYCLES |
1195 | get_pack_strings = F_PACK_STRINGS |
1392 | get_pack_strings = F_PACK_STRINGS |
|
|
1393 | get_validate_utf8 = F_VALIDATE_UTF8 |
1196 | PPCODE: |
1394 | PPCODE: |
1197 | XPUSHs (boolSV (self->flags & ix)); |
1395 | XPUSHs (boolSV (self->flags & ix)); |
1198 | |
1396 | |
1199 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1397 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1200 | PPCODE: |
1398 | PPCODE: |
… | |
… | |
1249 | EXTEND (SP, 2); |
1447 | EXTEND (SP, 2); |
1250 | PUSHs (sv); |
1448 | PUSHs (sv); |
1251 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1449 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1252 | } |
1450 | } |
1253 | |
1451 | |
|
|
1452 | void incr_parse (CBOR *self, SV *cborstr, int chop = 0) |
|
|
1453 | PPCODE: |
|
|
1454 | { |
|
|
1455 | if (SvUTF8 (cborstr)) |
|
|
1456 | sv_utf8_downgrade (cborstr, 0); |
|
|
1457 | |
|
|
1458 | if (!self->incr_count) |
|
|
1459 | { |
|
|
1460 | self->incr_count = newAV (); |
|
|
1461 | self->incr_pos = 0; |
|
|
1462 | self->incr_need = 1; |
|
|
1463 | |
|
|
1464 | av_push (self->incr_count, newSViv (1)); |
|
|
1465 | } |
|
|
1466 | |
|
|
1467 | for (;;) |
|
|
1468 | { |
|
|
1469 | if (!incr_parse (self, cborstr)) |
|
|
1470 | { |
|
|
1471 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1472 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1473 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1474 | |
|
|
1475 | break; |
|
|
1476 | } |
|
|
1477 | |
|
|
1478 | SV *sv; |
|
|
1479 | char *offset; |
|
|
1480 | |
|
|
1481 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1482 | XPUSHs (sv); |
|
|
1483 | |
|
|
1484 | av_clear (self->incr_count); |
|
|
1485 | av_push (self->incr_count, newSViv (1)); |
|
|
1486 | |
|
|
1487 | if (chop) |
|
|
1488 | { |
|
|
1489 | self->incr_pos = 0; |
|
|
1490 | sv_chop (cborstr, offset); |
|
|
1491 | } |
|
|
1492 | else |
|
|
1493 | self->incr_pos = offset - SvPVX (cborstr); |
|
|
1494 | |
|
|
1495 | self->incr_need = self->incr_pos + 1; |
|
|
1496 | } |
|
|
1497 | } |
|
|
1498 | |
|
|
1499 | void incr_reset (CBOR *self) |
|
|
1500 | CODE: |
|
|
1501 | { |
|
|
1502 | SvREFCNT_dec (self->incr_count); |
|
|
1503 | self->incr_count = 0; |
|
|
1504 | } |
|
|
1505 | |
1254 | void DESTROY (CBOR *self) |
1506 | void DESTROY (CBOR *self) |
1255 | PPCODE: |
1507 | PPCODE: |
1256 | cbor_free (self); |
1508 | cbor_free (self); |
1257 | |
1509 | |
1258 | PROTOTYPES: ENABLE |
1510 | PROTOTYPES: ENABLE |
1259 | |
1511 | |
1260 | void encode_cbor (SV *scalar) |
1512 | void encode_cbor (SV *scalar) |
|
|
1513 | ALIAS: |
|
|
1514 | encode_cbor = 0 |
|
|
1515 | encode_cbor_sharing = F_ALLOW_SHARING |
1261 | PPCODE: |
1516 | PPCODE: |
1262 | { |
1517 | { |
1263 | CBOR cbor; |
1518 | CBOR cbor; |
1264 | cbor_init (&cbor); |
1519 | cbor_init (&cbor); |
|
|
1520 | cbor.flags |= ix; |
1265 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1521 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1266 | XPUSHs (scalar); |
1522 | XPUSHs (scalar); |
1267 | } |
1523 | } |
1268 | |
1524 | |
1269 | void decode_cbor (SV *cborstr) |
1525 | void decode_cbor (SV *cborstr) |