… | |
… | |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
11 | |
11 | |
12 | #include "ecb.h" |
12 | #include "ecb.h" |
13 | |
13 | |
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14 | // compatibility with perl <5.18 |
|
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15 | #ifndef HvNAMELEN_get |
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16 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
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17 | #endif |
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18 | #ifndef HvNAMELEN |
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19 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
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20 | #endif |
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21 | #ifndef HvNAMEUTF8 |
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22 | # define HvNAMEUTF8(hv) 0 |
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23 | #endif |
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24 | |
14 | // known tags |
25 | // known tags |
15 | enum cbor_tag |
26 | enum cbor_tag |
16 | { |
27 | { |
17 | // inofficial extensions (pending iana registration) |
28 | // inofficial extensions (pending iana registration) |
18 | CBOR_TAG_PERL_OBJECT = 256, |
29 | CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object |
19 | CBOR_TAG_GENERIC_OBJECT = 257, |
30 | CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object |
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31 | CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing |
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32 | CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing |
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33 | CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref |
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34 | CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref |
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35 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
20 | |
36 | |
21 | // rfc7049 |
37 | // rfc7049 |
22 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
38 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
23 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
39 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
24 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
40 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
… | |
… | |
38 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
54 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
39 | |
55 | |
40 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
56 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
41 | }; |
57 | }; |
42 | |
58 | |
43 | #define F_SHRINK 0x00000200UL |
59 | #define F_SHRINK 0x00000001UL |
44 | #define F_ALLOW_UNKNOWN 0x00002000UL |
60 | #define F_ALLOW_UNKNOWN 0x00000002UL |
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61 | #define F_ALLOW_SHARING 0x00000004UL //TODO |
|
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62 | #define F_DEDUP_STRINGS 0x00000008UL //TODO |
|
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63 | #define F_DEDUP_KEYS 0x00000010UL //TODO |
45 | |
64 | |
46 | #define INIT_SIZE 32 // initial scalar size to be allocated |
65 | #define INIT_SIZE 32 // initial scalar size to be allocated |
47 | |
66 | |
48 | #define SB do { |
67 | #define SB do { |
49 | #define SE } while (0) |
68 | #define SE } while (0) |
… | |
… | |
106 | #endif |
125 | #endif |
107 | } |
126 | } |
108 | } |
127 | } |
109 | |
128 | |
110 | ///////////////////////////////////////////////////////////////////////////// |
129 | ///////////////////////////////////////////////////////////////////////////// |
111 | // fp hell |
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112 | |
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113 | //TODO |
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114 | |
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115 | ///////////////////////////////////////////////////////////////////////////// |
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116 | // encoder |
130 | // encoder |
117 | |
131 | |
118 | // structure used for encoding CBOR |
132 | // structure used for encoding CBOR |
119 | typedef struct |
133 | typedef struct |
120 | { |
134 | { |
121 | char *cur; // SvPVX (sv) + current output position |
135 | char *cur; // SvPVX (sv) + current output position |
122 | char *end; // SvEND (sv) |
136 | char *end; // SvEND (sv) |
123 | SV *sv; // result scalar |
137 | SV *sv; // result scalar |
124 | CBOR cbor; |
138 | CBOR cbor; |
125 | U32 depth; // recursion level |
139 | U32 depth; // recursion level |
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140 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
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141 | UV stringref_idx; |
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142 | HV *shareable; // ptr => index, or 0 |
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143 | UV shareable_idx; |
126 | } enc_t; |
144 | } enc_t; |
127 | |
145 | |
128 | ecb_inline void |
146 | ecb_inline void |
129 | need (enc_t *enc, STRLEN len) |
147 | need (enc_t *enc, STRLEN len) |
130 | { |
148 | { |
… | |
… | |
191 | need (enc, len); |
209 | need (enc, len); |
192 | memcpy (enc->cur, str, len); |
210 | memcpy (enc->cur, str, len); |
193 | enc->cur += len; |
211 | enc->cur += len; |
194 | } |
212 | } |
195 | |
213 | |
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214 | ecb_inline void |
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215 | encode_tag (enc_t *enc, UV tag) |
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216 | { |
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217 | encode_uint (enc, 0xc0, tag); |
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218 | } |
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219 | |
196 | static void encode_sv (enc_t *enc, SV *sv); |
220 | static void encode_sv (enc_t *enc, SV *sv); |
197 | |
221 | |
198 | static void |
222 | static void |
199 | encode_av (enc_t *enc, AV *av) |
223 | encode_av (enc_t *enc, AV *av) |
200 | { |
224 | { |
… | |
… | |
212 | SV **svp = av_fetch (av, i, 0); |
236 | SV **svp = av_fetch (av, i, 0); |
213 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
237 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
214 | } |
238 | } |
215 | |
239 | |
216 | --enc->depth; |
240 | --enc->depth; |
|
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241 | } |
|
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242 | |
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243 | ecb_inline void |
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244 | encode_he (enc_t *enc, HE *he) |
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245 | { |
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246 | if (HeKLEN (he) == HEf_SVKEY) |
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247 | encode_sv (enc, HeSVKEY (he)); |
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248 | else |
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249 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
217 | } |
250 | } |
218 | |
251 | |
219 | static void |
252 | static void |
220 | encode_hv (enc_t *enc, HV *hv) |
253 | encode_hv (enc_t *enc, HV *hv) |
221 | { |
254 | { |
… | |
… | |
234 | else |
267 | else |
235 | encode_uint (enc, 0xa0, pairs); |
268 | encode_uint (enc, 0xa0, pairs); |
236 | |
269 | |
237 | while ((he = hv_iternext (hv))) |
270 | while ((he = hv_iternext (hv))) |
238 | { |
271 | { |
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272 | if (ecb_expect_false (enc->cbor.flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS))) |
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273 | { |
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274 | SV **svp; |
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275 | |
239 | if (HeKLEN (he) == HEf_SVKEY) |
276 | if (HeKLEN (he) == HEf_SVKEY) |
240 | encode_sv (enc, HeSVKEY (he)); |
277 | svp = hv_fetch_ent (enc->stringref[!! SvUTF8 (HeSVKEY (he))], HeSVKEY (he) , 1, 0);//TODO return HE :/ |
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278 | else |
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279 | svp = hv_fetch (enc->stringref[!! HeKUTF8 (he) ], HeKEY (he), HeKLEN (he), 1); |
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280 | |
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281 | if (SvOK (*svp)) |
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282 | { |
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283 | encode_tag (enc, CBOR_TAG_STRINGREF); |
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284 | encode_uint (enc, 0x00, SvUV (*svp)); |
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285 | } |
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286 | else |
|
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287 | { |
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288 | sv_setuv (*svp, enc->stringref_idx); |
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289 | ++enc->stringref_idx; |
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290 | encode_he (enc, he); |
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291 | } |
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292 | } |
241 | else |
293 | else |
242 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
294 | encode_he (enc, he); |
243 | |
295 | |
244 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
296 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
245 | } |
297 | } |
246 | |
298 | |
247 | if (mg) |
299 | if (mg) |
… | |
… | |
252 | |
304 | |
253 | // encode objects, arrays and special \0=false and \1=true values. |
305 | // encode objects, arrays and special \0=false and \1=true values. |
254 | static void |
306 | static void |
255 | encode_rv (enc_t *enc, SV *sv) |
307 | encode_rv (enc_t *enc, SV *sv) |
256 | { |
308 | { |
257 | svtype svt; |
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258 | |
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259 | SvGETMAGIC (sv); |
309 | SvGETMAGIC (sv); |
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310 | |
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311 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING) |
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312 | && ecb_expect_false (SvREFCNT (sv) > 1)) |
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313 | { |
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314 | if (!enc->shareable) |
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315 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
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316 | |
|
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317 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
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318 | |
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319 | if (SvOK (*svp)) |
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320 | { |
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321 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
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322 | encode_uint (enc, 0x00, SvUV (*svp)); |
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323 | return; |
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324 | } |
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325 | else |
|
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326 | { |
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327 | sv_setuv (*svp, enc->shareable_idx); |
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328 | ++enc->shareable_idx; |
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329 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
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330 | } |
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331 | } |
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332 | |
260 | svt = SvTYPE (sv); |
333 | svtype svt = SvTYPE (sv); |
261 | |
334 | |
262 | if (ecb_expect_false (SvOBJECT (sv))) |
335 | if (ecb_expect_false (SvOBJECT (sv))) |
263 | { |
336 | { |
264 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
337 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
265 | ? types_boolean_stash |
338 | ? types_boolean_stash |
… | |
… | |
325 | |
398 | |
326 | // catch this surprisingly common error |
399 | // catch this surprisingly common error |
327 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
400 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
328 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
401 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
329 | |
402 | |
330 | encode_uint (enc, 0xc0, CBOR_TAG_PERL_OBJECT); |
403 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
331 | encode_uint (enc, 0x80, count + 1); |
404 | encode_uint (enc, 0x80, count + 1); |
332 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
405 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
333 | |
406 | |
334 | while (count) |
407 | while (count) |
335 | encode_sv (enc, SP[1 - count--]); |
408 | encode_sv (enc, SP[1 - count--]); |
… | |
… | |
344 | } |
417 | } |
345 | else if (svt == SVt_PVHV) |
418 | else if (svt == SVt_PVHV) |
346 | encode_hv (enc, (HV *)sv); |
419 | encode_hv (enc, (HV *)sv); |
347 | else if (svt == SVt_PVAV) |
420 | else if (svt == SVt_PVAV) |
348 | encode_av (enc, (AV *)sv); |
421 | encode_av (enc, (AV *)sv); |
349 | else if (svt < SVt_PVAV) |
|
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350 | { |
|
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351 | STRLEN len = 0; |
|
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352 | char *pv = svt ? SvPV (sv, len) : 0; |
|
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353 | |
|
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354 | if (len == 1 && *pv == '1') |
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355 | encode_ch (enc, 0xe0 | 21); |
|
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356 | else if (len == 1 && *pv == '0') |
|
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357 | encode_ch (enc, 0xe0 | 20); |
|
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358 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
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359 | encode_ch (enc, 0xe0 | 23); |
|
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360 | else |
|
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361 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
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362 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
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363 | } |
|
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364 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
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365 | encode_ch (enc, 0xe0 | 23); |
|
|
366 | else |
422 | else |
367 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
423 | { |
368 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
424 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
425 | encode_sv (enc, sv); |
|
|
426 | } |
369 | } |
427 | } |
370 | |
428 | |
371 | static void |
429 | static void |
372 | encode_nv (enc_t *enc, SV *sv) |
430 | encode_nv (enc_t *enc, SV *sv) |
373 | { |
431 | { |
… | |
… | |
438 | } |
496 | } |
439 | |
497 | |
440 | static SV * |
498 | static SV * |
441 | encode_cbor (SV *scalar, CBOR *cbor) |
499 | encode_cbor (SV *scalar, CBOR *cbor) |
442 | { |
500 | { |
443 | enc_t enc; |
501 | enc_t enc = { }; |
444 | |
502 | |
445 | enc.cbor = *cbor; |
503 | enc.cbor = *cbor; |
446 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
504 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
447 | enc.cur = SvPVX (enc.sv); |
505 | enc.cur = SvPVX (enc.sv); |
448 | enc.end = SvEND (enc.sv); |
506 | enc.end = SvEND (enc.sv); |
449 | enc.depth = 0; |
|
|
450 | |
507 | |
451 | SvPOK_only (enc.sv); |
508 | SvPOK_only (enc.sv); |
|
|
509 | |
|
|
510 | if (cbor->flags & (F_DEDUP_STRINGS | F_DEDUP_KEYS)) |
|
|
511 | { |
|
|
512 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
513 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
514 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
515 | } |
|
|
516 | |
452 | encode_sv (&enc, scalar); |
517 | encode_sv (&enc, scalar); |
453 | |
518 | |
454 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
519 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
455 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
520 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
456 | |
521 | |
… | |
… | |
470 | U8 *end; // end of input string |
535 | U8 *end; // end of input string |
471 | const char *err; // parse error, if != 0 |
536 | const char *err; // parse error, if != 0 |
472 | CBOR cbor; |
537 | CBOR cbor; |
473 | U32 depth; // recursion depth |
538 | U32 depth; // recursion depth |
474 | U32 maxdepth; // recursion depth limit |
539 | U32 maxdepth; // recursion depth limit |
|
|
540 | AV *shareable; |
|
|
541 | AV *stringref; |
475 | } dec_t; |
542 | } dec_t; |
476 | |
543 | |
477 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
544 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
478 | |
545 | |
479 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
546 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
… | |
… | |
573 | SvREFCNT_dec (av); |
640 | SvREFCNT_dec (av); |
574 | DEC_DEC_DEPTH; |
641 | DEC_DEC_DEPTH; |
575 | return &PL_sv_undef; |
642 | return &PL_sv_undef; |
576 | } |
643 | } |
577 | |
644 | |
|
|
645 | static void |
|
|
646 | decode_he (dec_t *dec, HV *hv) |
|
|
647 | { |
|
|
648 | // for speed reasons, we specialcase single-string |
|
|
649 | // byte or utf-8 strings as keys. |
|
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650 | |
|
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651 | if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
|
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652 | { |
|
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653 | I32 len = decode_uint (dec); |
|
|
654 | char *key = (char *)dec->cur; |
|
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655 | |
|
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656 | dec->cur += len; |
|
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657 | |
|
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658 | if (ecb_expect_false (dec->stringref)) |
|
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659 | av_push (dec->stringref, newSVpvn (key, len)); |
|
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660 | |
|
|
661 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
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662 | } |
|
|
663 | else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
|
|
664 | { |
|
|
665 | I32 len = decode_uint (dec); |
|
|
666 | char *key = (char *)dec->cur; |
|
|
667 | |
|
|
668 | dec->cur += len; |
|
|
669 | |
|
|
670 | if (ecb_expect_false (dec->stringref)) |
|
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671 | av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
|
|
672 | |
|
|
673 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
674 | } |
|
|
675 | else |
|
|
676 | { |
|
|
677 | SV *k = decode_sv (dec); |
|
|
678 | SV *v = decode_sv (dec); |
|
|
679 | |
|
|
680 | hv_store_ent (hv, k, v, 0); |
|
|
681 | SvREFCNT_dec (k); |
|
|
682 | } |
|
|
683 | } |
|
|
684 | |
578 | static SV * |
685 | static SV * |
579 | decode_hv (dec_t *dec) |
686 | decode_hv (dec_t *dec) |
580 | { |
687 | { |
581 | HV *hv = newHV (); |
688 | HV *hv = newHV (); |
582 | |
689 | |
… | |
… | |
594 | { |
701 | { |
595 | ++dec->cur; |
702 | ++dec->cur; |
596 | break; |
703 | break; |
597 | } |
704 | } |
598 | |
705 | |
599 | SV *k = decode_sv (dec); |
706 | decode_he (dec, hv); |
600 | SV *v = decode_sv (dec); |
|
|
601 | |
|
|
602 | hv_store_ent (hv, k, v, 0); |
|
|
603 | } |
707 | } |
604 | } |
708 | } |
605 | else |
709 | else |
606 | { |
710 | { |
607 | int len = decode_uint (dec); |
711 | int pairs = decode_uint (dec); |
608 | |
712 | |
609 | while (len--) |
713 | while (pairs--) |
610 | { |
714 | decode_he (dec, hv); |
611 | SV *k = decode_sv (dec); |
|
|
612 | SV *v = decode_sv (dec); |
|
|
613 | |
|
|
614 | hv_store_ent (hv, k, v, 0); |
|
|
615 | } |
|
|
616 | } |
715 | } |
617 | |
716 | |
618 | DEC_DEC_DEPTH; |
717 | DEC_DEC_DEPTH; |
619 | return newRV_noinc ((SV *)hv); |
718 | return newRV_noinc ((SV *)hv); |
620 | |
719 | |
… | |
… | |
659 | } |
758 | } |
660 | |
759 | |
661 | if (utf8) |
760 | if (utf8) |
662 | SvUTF8_on (sv); |
761 | SvUTF8_on (sv); |
663 | |
762 | |
|
|
763 | if (ecb_expect_false (dec->stringref)) |
|
|
764 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
|
|
765 | |
664 | return sv; |
766 | return sv; |
665 | |
767 | |
666 | fail: |
768 | fail: |
667 | SvREFCNT_dec (sv); |
769 | SvREFCNT_dec (sv); |
668 | return &PL_sv_undef; |
770 | return &PL_sv_undef; |
669 | } |
771 | } |
670 | |
772 | |
671 | static SV * |
773 | static SV * |
672 | decode_tagged (dec_t *dec) |
774 | decode_tagged (dec_t *dec) |
673 | { |
775 | { |
|
|
776 | SV *sv = 0; |
674 | UV tag = decode_uint (dec); |
777 | UV tag = decode_uint (dec); |
|
|
778 | |
|
|
779 | WANT (1); |
|
|
780 | |
|
|
781 | switch (tag) |
|
|
782 | { |
|
|
783 | case CBOR_TAG_MAGIC: |
|
|
784 | sv = decode_sv (dec); |
|
|
785 | break; |
|
|
786 | |
|
|
787 | case CBOR_TAG_INDIRECTION: |
|
|
788 | sv = newRV_noinc (decode_sv (dec)); |
|
|
789 | break; |
|
|
790 | |
|
|
791 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
792 | { |
|
|
793 | ENTER; SAVETMPS; |
|
|
794 | |
|
|
795 | SAVESPTR (dec->stringref); |
|
|
796 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
797 | |
|
|
798 | sv = decode_sv (dec); |
|
|
799 | |
|
|
800 | FREETMPS; LEAVE; |
|
|
801 | } |
|
|
802 | break; |
|
|
803 | |
|
|
804 | case CBOR_TAG_STRINGREF: |
|
|
805 | { |
|
|
806 | if ((*dec->cur >> 5) != 0) |
|
|
807 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
808 | |
|
|
809 | UV idx = decode_uint (dec); |
|
|
810 | |
|
|
811 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
|
|
812 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
813 | |
|
|
814 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
815 | } |
|
|
816 | break; |
|
|
817 | |
|
|
818 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
819 | { |
|
|
820 | if (ecb_expect_false (!dec->shareable)) |
|
|
821 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
822 | |
|
|
823 | sv = newSV (0); |
|
|
824 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
825 | |
675 | SV *sv = decode_sv (dec); |
826 | SV *osv = decode_sv (dec); |
|
|
827 | sv_setsv (sv, osv); |
|
|
828 | SvREFCNT_dec_NN (osv); |
|
|
829 | } |
|
|
830 | break; |
676 | |
831 | |
677 | if (tag == CBOR_TAG_MAGIC) |
832 | case CBOR_TAG_VALUE_SHAREDREF: |
678 | return sv; |
833 | { |
679 | else if (tag == CBOR_TAG_PERL_OBJECT) |
834 | if ((*dec->cur >> 5) != 0) |
680 | { |
835 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
836 | |
|
|
837 | UV idx = decode_uint (dec); |
|
|
838 | |
|
|
839 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
|
|
840 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
841 | |
|
|
842 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
843 | } |
|
|
844 | break; |
|
|
845 | |
|
|
846 | case CBOR_TAG_PERL_OBJECT: |
|
|
847 | { |
|
|
848 | sv = decode_sv (dec); |
|
|
849 | |
681 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
850 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
682 | ERR ("corrupted CBOR data (non-array perl object)"); |
851 | ERR ("corrupted CBOR data (non-array perl object)"); |
683 | |
852 | |
684 | AV *av = (AV *)SvRV (sv); |
853 | AV *av = (AV *)SvRV (sv); |
685 | int len = av_len (av) + 1; |
854 | int len = av_len (av) + 1; |
686 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
855 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
687 | |
856 | |
688 | if (!stash) |
857 | if (!stash) |
689 | ERR ("cannot decode perl-object (package does not exist)"); |
858 | ERR ("cannot decode perl-object (package does not exist)"); |
690 | |
859 | |
691 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
860 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
692 | |
861 | |
693 | if (!method) |
862 | if (!method) |
694 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
863 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
695 | |
864 | |
696 | dSP; |
865 | dSP; |
697 | |
866 | |
698 | ENTER; SAVETMPS; PUSHMARK (SP); |
867 | ENTER; SAVETMPS; PUSHMARK (SP); |
699 | EXTEND (SP, len + 1); |
868 | EXTEND (SP, len + 1); |
700 | // we re-bless the reference to get overload and other niceties right |
869 | // we re-bless the reference to get overload and other niceties right |
701 | PUSHs (*av_fetch (av, 0, 1)); |
870 | PUSHs (*av_fetch (av, 0, 1)); |
702 | PUSHs (sv_cbor); |
871 | PUSHs (sv_cbor); |
703 | |
872 | |
704 | int i; |
873 | int i; |
705 | |
874 | |
706 | for (i = 1; i < len; ++i) |
875 | for (i = 1; i < len; ++i) |
707 | PUSHs (*av_fetch (av, i, 1)); |
876 | PUSHs (*av_fetch (av, i, 1)); |
708 | |
877 | |
709 | PUTBACK; |
878 | PUTBACK; |
710 | call_sv ((SV *)GvCV (method), G_SCALAR); |
879 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
711 | SPAGAIN; |
880 | SPAGAIN; |
712 | |
881 | |
|
|
882 | if (SvTRUE (ERRSV)) |
|
|
883 | { |
|
|
884 | FREETMPS; LEAVE; |
|
|
885 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
886 | } |
|
|
887 | |
|
|
888 | SvREFCNT_dec (sv); |
713 | sv = SvREFCNT_inc (POPs); |
889 | sv = SvREFCNT_inc (POPs); |
714 | |
890 | |
715 | PUTBACK; |
891 | PUTBACK; |
716 | |
892 | |
717 | FREETMPS; LEAVE; |
893 | FREETMPS; LEAVE; |
|
|
894 | } |
|
|
895 | break; |
718 | |
896 | |
719 | return sv; |
897 | default: |
720 | } |
898 | { |
721 | else |
899 | sv = decode_sv (dec); |
722 | { |
900 | |
723 | AV *av = newAV (); |
901 | AV *av = newAV (); |
724 | av_push (av, newSVuv (tag)); |
902 | av_push (av, newSVuv (tag)); |
725 | av_push (av, sv); |
903 | av_push (av, sv); |
726 | |
904 | |
727 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
905 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
728 | ? cbor_tagged_stash |
906 | ? cbor_tagged_stash |
729 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
907 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
730 | |
908 | |
731 | return sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
909 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
910 | } |
|
|
911 | break; |
732 | } |
912 | } |
|
|
913 | |
|
|
914 | return sv; |
733 | |
915 | |
734 | fail: |
916 | fail: |
735 | SvREFCNT_dec (sv); |
917 | SvREFCNT_dec (sv); |
736 | return &PL_sv_undef; |
918 | return &PL_sv_undef; |
737 | } |
919 | } |
… | |
… | |
828 | } |
1010 | } |
829 | |
1011 | |
830 | static SV * |
1012 | static SV * |
831 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1013 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
832 | { |
1014 | { |
833 | dec_t dec; |
1015 | dec_t dec = { }; |
834 | SV *sv; |
1016 | SV *sv; |
|
|
1017 | STRLEN len; |
|
|
1018 | char *data = SvPVbyte (string, len); |
835 | |
1019 | |
836 | /* work around bugs in 5.10 where manipulating magic values |
|
|
837 | * makes perl ignore the magic in subsequent accesses. |
|
|
838 | * also make a copy of non-PV values, to get them into a clean |
|
|
839 | * state (SvPV should do that, but it's buggy, see below). |
|
|
840 | */ |
|
|
841 | /*SvGETMAGIC (string);*/ |
|
|
842 | if (SvMAGICAL (string) || !SvPOK (string)) |
|
|
843 | string = sv_2mortal (newSVsv (string)); |
|
|
844 | |
|
|
845 | SvUPGRADE (string, SVt_PV); |
|
|
846 | |
|
|
847 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
848 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
849 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
850 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
851 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
852 | * and hope for the best. |
|
|
853 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
854 | * assertion business is seriously broken, try yet another workaround |
|
|
855 | * for the broken -DDEBUGGING. |
|
|
856 | */ |
|
|
857 | { |
|
|
858 | #ifdef DEBUGGING |
|
|
859 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
860 | #else |
|
|
861 | STRLEN offset = SvCUR (string); |
|
|
862 | #endif |
|
|
863 | |
|
|
864 | if (offset > cbor->max_size && cbor->max_size) |
1020 | if (len > cbor->max_size && cbor->max_size) |
865 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1021 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
866 | (unsigned long)SvCUR (string), (unsigned long)cbor->max_size); |
1022 | (unsigned long)len, (unsigned long)cbor->max_size); |
867 | } |
|
|
868 | |
|
|
869 | sv_utf8_downgrade (string, 0); |
|
|
870 | |
1023 | |
871 | dec.cbor = *cbor; |
1024 | dec.cbor = *cbor; |
872 | dec.cur = (U8 *)SvPVX (string); |
1025 | dec.cur = (U8 *)data; |
873 | dec.end = (U8 *)SvEND (string); |
1026 | dec.end = (U8 *)data + len; |
874 | dec.err = 0; |
|
|
875 | dec.depth = 0; |
|
|
876 | |
1027 | |
877 | sv = decode_sv (&dec); |
1028 | sv = decode_sv (&dec); |
878 | |
1029 | |
879 | if (offset_return) |
1030 | if (offset_return) |
880 | *offset_return = dec.cur; |
1031 | *offset_return = dec.cur; |
… | |
… | |
884 | dec.err = "garbage after CBOR object"; |
1035 | dec.err = "garbage after CBOR object"; |
885 | |
1036 | |
886 | if (dec.err) |
1037 | if (dec.err) |
887 | { |
1038 | { |
888 | SvREFCNT_dec (sv); |
1039 | SvREFCNT_dec (sv); |
889 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1040 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
890 | } |
1041 | } |
891 | |
1042 | |
892 | sv = sv_2mortal (sv); |
1043 | sv = sv_2mortal (sv); |
893 | |
1044 | |
894 | return sv; |
1045 | return sv; |
… | |
… | |
938 | |
1089 | |
939 | void shrink (CBOR *self, int enable = 1) |
1090 | void shrink (CBOR *self, int enable = 1) |
940 | ALIAS: |
1091 | ALIAS: |
941 | shrink = F_SHRINK |
1092 | shrink = F_SHRINK |
942 | allow_unknown = F_ALLOW_UNKNOWN |
1093 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1094 | allow_sharing = F_ALLOW_SHARING |
|
|
1095 | dedup_keys = F_DEDUP_KEYS |
|
|
1096 | dedup_strings = F_DEDUP_STRINGS |
943 | PPCODE: |
1097 | PPCODE: |
944 | { |
1098 | { |
945 | if (enable) |
1099 | if (enable) |
946 | self->flags |= ix; |
1100 | self->flags |= ix; |
947 | else |
1101 | else |
… | |
… | |
952 | |
1106 | |
953 | void get_shrink (CBOR *self) |
1107 | void get_shrink (CBOR *self) |
954 | ALIAS: |
1108 | ALIAS: |
955 | get_shrink = F_SHRINK |
1109 | get_shrink = F_SHRINK |
956 | get_allow_unknown = F_ALLOW_UNKNOWN |
1110 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1111 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1112 | get_dedup_keys = F_DEDUP_KEYS |
|
|
1113 | get_dedup_strings = F_DEDUP_STRINGS |
957 | PPCODE: |
1114 | PPCODE: |
958 | XPUSHs (boolSV (self->flags & ix)); |
1115 | XPUSHs (boolSV (self->flags & ix)); |
959 | |
1116 | |
960 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1117 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
961 | PPCODE: |
1118 | PPCODE: |
… | |
… | |
976 | int get_max_size (CBOR *self) |
1133 | int get_max_size (CBOR *self) |
977 | CODE: |
1134 | CODE: |
978 | RETVAL = self->max_size; |
1135 | RETVAL = self->max_size; |
979 | OUTPUT: |
1136 | OUTPUT: |
980 | RETVAL |
1137 | RETVAL |
981 | |
|
|
982 | #if 0 //TODO |
|
|
983 | |
|
|
984 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
985 | PPCODE: |
|
|
986 | { |
|
|
987 | SvREFCNT_dec (self->cb_object); |
|
|
988 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
|
|
989 | |
|
|
990 | XPUSHs (ST (0)); |
|
|
991 | } |
|
|
992 | |
|
|
993 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
|
|
994 | PPCODE: |
|
|
995 | { |
|
|
996 | if (!self->cb_sk_object) |
|
|
997 | self->cb_sk_object = newHV (); |
|
|
998 | |
|
|
999 | if (SvOK (cb)) |
|
|
1000 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1001 | else |
|
|
1002 | { |
|
|
1003 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1004 | |
|
|
1005 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1006 | { |
|
|
1007 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1008 | self->cb_sk_object = 0; |
|
|
1009 | } |
|
|
1010 | } |
|
|
1011 | |
|
|
1012 | XPUSHs (ST (0)); |
|
|
1013 | } |
|
|
1014 | |
|
|
1015 | #endif |
|
|
1016 | |
1138 | |
1017 | void encode (CBOR *self, SV *scalar) |
1139 | void encode (CBOR *self, SV *scalar) |
1018 | PPCODE: |
1140 | PPCODE: |
1019 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1141 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1020 | XPUSHs (scalar); |
1142 | XPUSHs (scalar); |
… | |
… | |
1033 | EXTEND (SP, 2); |
1155 | EXTEND (SP, 2); |
1034 | PUSHs (sv); |
1156 | PUSHs (sv); |
1035 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1157 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1036 | } |
1158 | } |
1037 | |
1159 | |
1038 | #if 0 |
|
|
1039 | |
|
|
1040 | void DESTROY (CBOR *self) |
|
|
1041 | CODE: |
|
|
1042 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1043 | SvREFCNT_dec (self->cb_object); |
|
|
1044 | |
|
|
1045 | #endif |
|
|
1046 | |
|
|
1047 | PROTOTYPES: ENABLE |
1160 | PROTOTYPES: ENABLE |
1048 | |
1161 | |
1049 | void encode_cbor (SV *scalar) |
1162 | void encode_cbor (SV *scalar) |
1050 | PPCODE: |
1163 | PPCODE: |
1051 | { |
1164 | { |