… | |
… | |
6 | #include <string.h> |
6 | #include <string.h> |
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 | #include <inttypes.h> |
11 | |
12 | |
|
|
13 | #define ECB_NO_THREADS 1 |
12 | #include "ecb.h" |
14 | #include "ecb.h" |
|
|
15 | |
|
|
16 | // compatibility with perl <5.18 |
|
|
17 | #ifndef HvNAMELEN_get |
|
|
18 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
|
|
19 | #endif |
|
|
20 | #ifndef HvNAMELEN |
|
|
21 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
|
|
22 | #endif |
|
|
23 | #ifndef HvNAMEUTF8 |
|
|
24 | # define HvNAMEUTF8(hv) 0 |
|
|
25 | #endif |
|
|
26 | #ifndef SvREFCNT_inc_NN |
|
|
27 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
|
|
28 | #endif |
|
|
29 | #ifndef SvREFCNT_dec_NN |
|
|
30 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
|
|
31 | #endif |
|
|
32 | |
|
|
33 | // perl's is_utf8_string interprets len=0 as "calculate len", but we want it to mean 0 |
|
|
34 | #define cbor_is_utf8_string(str,len) (!(len) || is_utf8_string ((str), (len))) |
|
|
35 | |
|
|
36 | // known major and minor types |
|
|
37 | enum cbor_type |
|
|
38 | { |
|
|
39 | MAJOR_SHIFT = 5, |
|
|
40 | MINOR_MASK = 0x1f, |
|
|
41 | |
|
|
42 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
|
|
43 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
|
|
44 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
|
|
45 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
|
|
46 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
|
|
47 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
|
|
48 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
|
|
49 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
|
|
50 | |
|
|
51 | // INT/STRING/ARRAY/MAP subtypes |
|
|
52 | LENGTH_EXT1 = 24, |
|
|
53 | LENGTH_EXT2 = 25, |
|
|
54 | LENGTH_EXT4 = 26, |
|
|
55 | LENGTH_EXT8 = 27, |
|
|
56 | |
|
|
57 | // SIMPLE types (effectively MISC subtypes) |
|
|
58 | SIMPLE_FALSE = 20, |
|
|
59 | SIMPLE_TRUE = 21, |
|
|
60 | SIMPLE_NULL = 22, |
|
|
61 | SIMPLE_UNDEF = 23, |
|
|
62 | |
|
|
63 | // MISC subtype (unused) |
|
|
64 | MISC_EXT1 = 24, |
|
|
65 | MISC_FLOAT16 = 25, |
|
|
66 | MISC_FLOAT32 = 26, |
|
|
67 | MISC_FLOAT64 = 27, |
|
|
68 | |
|
|
69 | // BYTES/TEXT/ARRAY/MAP |
|
|
70 | MINOR_INDEF = 31, |
|
|
71 | }; |
13 | |
72 | |
14 | // known tags |
73 | // known tags |
15 | enum cbor_tag |
74 | enum cbor_tag |
16 | { |
75 | { |
17 | // inofficial extensions (pending iana registration) |
76 | // extensions |
18 | CBOR_TAG_PERL_OBJECT = 256, |
77 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
19 | CBOR_TAG_GENERIC_OBJECT = 257, |
78 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
|
|
79 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
|
|
80 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
|
|
81 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
|
|
82 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
|
|
83 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
20 | |
84 | |
21 | // rfc7049 |
85 | // rfc7049 |
22 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
86 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
23 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
87 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
24 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
88 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
25 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
89 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
26 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
90 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
27 | CBOR_TAG_BIGFLOAT = 5, // array |
91 | CBOR_TAG_BIGFLOAT = 5, // array |
28 | |
92 | |
29 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
93 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
30 | CBOR_TAG_CONV_B64 = 22, // base64, any |
94 | CBOR_TAG_CONV_B64 = 22, // base64, any |
31 | CBOR_TAG_CONV_HEX = 23, // base16, any |
95 | CBOR_TAG_CONV_HEX = 23, // base16, any |
32 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
96 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
33 | |
97 | |
34 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
98 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
35 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
99 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
36 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
100 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
37 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
101 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
38 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
102 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
39 | |
103 | |
40 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
104 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
41 | }; |
105 | }; |
42 | |
106 | |
|
|
107 | // known forced types, also hardcoded in CBOR.pm |
|
|
108 | enum |
|
|
109 | { |
|
|
110 | AS_CBOR = 0, |
|
|
111 | AS_INT = 1, |
|
|
112 | AS_BYTES = 2, |
|
|
113 | AS_TEXT = 3, |
|
|
114 | AS_FLOAT16 = 4, |
|
|
115 | AS_FLOAT32 = 5, |
|
|
116 | AS_FLOAT64 = 6, |
|
|
117 | AS_MAP = 7, |
|
|
118 | // possibly future enhancements: (generic) float, (generic) string |
|
|
119 | }; |
|
|
120 | |
43 | #define F_SHRINK 0x00000200UL |
121 | #define F_SHRINK 0x00000001UL |
44 | #define F_ALLOW_UNKNOWN 0x00002000UL |
122 | #define F_ALLOW_UNKNOWN 0x00000002UL |
|
|
123 | #define F_ALLOW_SHARING 0x00000004UL |
|
|
124 | #define F_ALLOW_CYCLES 0x00000008UL |
|
|
125 | #define F_FORBID_OBJECTS 0x00000010UL |
|
|
126 | #define F_PACK_STRINGS 0x00000020UL |
|
|
127 | #define F_TEXT_KEYS 0x00000040UL |
|
|
128 | #define F_TEXT_STRINGS 0x00000080UL |
|
|
129 | #define F_VALIDATE_UTF8 0x00000100UL |
45 | |
130 | |
46 | #define INIT_SIZE 32 // initial scalar size to be allocated |
131 | #define INIT_SIZE 32 // initial scalar size to be allocated |
47 | |
132 | |
48 | #define SB do { |
133 | #define SB do { |
49 | #define SE } while (0) |
134 | #define SE } while (0) |
… | |
… | |
61 | # define CBOR_SLOW 0 |
146 | # define CBOR_SLOW 0 |
62 | # define CBOR_STASH cbor_stash |
147 | # define CBOR_STASH cbor_stash |
63 | #endif |
148 | #endif |
64 | |
149 | |
65 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
150 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
66 | static SV *types_true, *types_false, *types_error, *sv_cbor; |
151 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
67 | |
152 | |
68 | typedef struct { |
153 | typedef struct { |
69 | U32 flags; |
154 | U32 flags; |
70 | U32 max_depth; |
155 | U32 max_depth; |
71 | STRLEN max_size; |
156 | STRLEN max_size; |
|
|
157 | SV *filter; |
|
|
158 | |
|
|
159 | // for the incremental parser |
|
|
160 | STRLEN incr_pos; // the current offset into the text |
|
|
161 | STRLEN incr_need; // minimum bytes needed to decode |
|
|
162 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
72 | } CBOR; |
163 | } CBOR; |
73 | |
164 | |
74 | ecb_inline void |
165 | ecb_inline void |
75 | cbor_init (CBOR *cbor) |
166 | cbor_init (CBOR *cbor) |
76 | { |
167 | { |
77 | Zero (cbor, 1, CBOR); |
168 | Zero (cbor, 1, CBOR); |
78 | cbor->max_depth = 512; |
169 | cbor->max_depth = 512; |
|
|
170 | } |
|
|
171 | |
|
|
172 | ecb_inline void |
|
|
173 | cbor_free (CBOR *cbor) |
|
|
174 | { |
|
|
175 | SvREFCNT_dec (cbor->filter); |
|
|
176 | SvREFCNT_dec (cbor->incr_count); |
79 | } |
177 | } |
80 | |
178 | |
81 | ///////////////////////////////////////////////////////////////////////////// |
179 | ///////////////////////////////////////////////////////////////////////////// |
82 | // utility functions |
180 | // utility functions |
83 | |
181 | |
… | |
… | |
105 | SvPV_renew (sv, SvCUR (sv) + 1); |
203 | SvPV_renew (sv, SvCUR (sv) + 1); |
106 | #endif |
204 | #endif |
107 | } |
205 | } |
108 | } |
206 | } |
109 | |
207 | |
110 | ///////////////////////////////////////////////////////////////////////////// |
208 | // minimum length of a string to be registered for stringref |
111 | // fp hell |
209 | ecb_inline STRLEN |
112 | |
210 | minimum_string_length (UV idx) |
113 | //TODO |
211 | { |
|
|
212 | return idx <= 23 ? 3 |
|
|
213 | : idx <= 0xffU ? 4 |
|
|
214 | : idx <= 0xffffU ? 5 |
|
|
215 | : idx <= 0xffffffffU ? 7 |
|
|
216 | : 11; |
|
|
217 | } |
114 | |
218 | |
115 | ///////////////////////////////////////////////////////////////////////////// |
219 | ///////////////////////////////////////////////////////////////////////////// |
116 | // encoder |
220 | // encoder |
117 | |
221 | |
118 | // structure used for encoding CBOR |
222 | // structure used for encoding CBOR |
… | |
… | |
121 | char *cur; // SvPVX (sv) + current output position |
225 | char *cur; // SvPVX (sv) + current output position |
122 | char *end; // SvEND (sv) |
226 | char *end; // SvEND (sv) |
123 | SV *sv; // result scalar |
227 | SV *sv; // result scalar |
124 | CBOR cbor; |
228 | CBOR cbor; |
125 | U32 depth; // recursion level |
229 | U32 depth; // recursion level |
|
|
230 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
|
|
231 | UV stringref_idx; |
|
|
232 | HV *shareable; // ptr => index, or 0 |
|
|
233 | UV shareable_idx; |
126 | } enc_t; |
234 | } enc_t; |
127 | |
235 | |
128 | ecb_inline void |
236 | ecb_inline void |
129 | need (enc_t *enc, STRLEN len) |
237 | need (enc_t *enc, STRLEN len) |
130 | { |
238 | { |
131 | if (ecb_expect_false (enc->cur + len >= enc->end)) |
239 | if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
132 | { |
240 | { |
133 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
241 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
134 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
242 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
135 | enc->cur = SvPVX (enc->sv) + cur; |
243 | enc->cur = SvPVX (enc->sv) + cur; |
136 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
244 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
137 | } |
245 | } |
138 | } |
246 | } |
139 | |
247 | |
|
|
248 | static void encode_sv (enc_t *enc, SV *sv); |
|
|
249 | |
140 | ecb_inline void |
250 | ecb_inline void |
141 | encode_ch (enc_t *enc, char ch) |
251 | encode_ch (enc_t *enc, char ch) |
142 | { |
252 | { |
143 | need (enc, 1); |
253 | need (enc, 1); |
144 | *enc->cur++ = ch; |
254 | *enc->cur++ = ch; |
145 | } |
255 | } |
146 | |
256 | |
|
|
257 | // used for tags, intregers, element counts and so on |
147 | static void |
258 | static void |
148 | encode_uint (enc_t *enc, int major, UV len) |
259 | encode_uint (enc_t *enc, int major, UV len) |
149 | { |
260 | { |
150 | need (enc, 9); |
261 | need (enc, 9); |
151 | |
262 | |
152 | if (len < 24) |
263 | if (ecb_expect_true (len < LENGTH_EXT1)) |
153 | *enc->cur++ = major | len; |
264 | *enc->cur++ = major | len; |
154 | else if (len <= 0xff) |
265 | else if (ecb_expect_true (len <= 0xffU)) |
155 | { |
266 | { |
156 | *enc->cur++ = major | 24; |
267 | *enc->cur++ = major | LENGTH_EXT1; |
157 | *enc->cur++ = len; |
268 | *enc->cur++ = len; |
158 | } |
269 | } |
159 | else if (len <= 0xffff) |
270 | else if (len <= 0xffffU) |
160 | { |
271 | { |
161 | *enc->cur++ = major | 25; |
272 | *enc->cur++ = major | LENGTH_EXT2; |
162 | *enc->cur++ = len >> 8; |
273 | *enc->cur++ = len >> 8; |
163 | *enc->cur++ = len; |
274 | *enc->cur++ = len; |
164 | } |
275 | } |
165 | else if (len <= 0xffffffff) |
276 | else if (len <= 0xffffffffU) |
166 | { |
277 | { |
167 | *enc->cur++ = major | 26; |
278 | *enc->cur++ = major | LENGTH_EXT4; |
168 | *enc->cur++ = len >> 24; |
279 | *enc->cur++ = len >> 24; |
169 | *enc->cur++ = len >> 16; |
280 | *enc->cur++ = len >> 16; |
170 | *enc->cur++ = len >> 8; |
281 | *enc->cur++ = len >> 8; |
171 | *enc->cur++ = len; |
282 | *enc->cur++ = len; |
172 | } |
283 | } |
173 | else |
284 | else |
174 | { |
285 | { |
175 | *enc->cur++ = major | 27; |
286 | *enc->cur++ = major | LENGTH_EXT8; |
176 | *enc->cur++ = len >> 56; |
287 | *enc->cur++ = len >> 56; |
177 | *enc->cur++ = len >> 48; |
288 | *enc->cur++ = len >> 48; |
178 | *enc->cur++ = len >> 40; |
289 | *enc->cur++ = len >> 40; |
179 | *enc->cur++ = len >> 32; |
290 | *enc->cur++ = len >> 32; |
180 | *enc->cur++ = len >> 24; |
291 | *enc->cur++ = len >> 24; |
… | |
… | |
182 | *enc->cur++ = len >> 8; |
293 | *enc->cur++ = len >> 8; |
183 | *enc->cur++ = len; |
294 | *enc->cur++ = len; |
184 | } |
295 | } |
185 | } |
296 | } |
186 | |
297 | |
187 | static void |
298 | // encodes a perl value into a CBOR integer |
|
|
299 | ecb_inline void |
|
|
300 | encode_int (enc_t *enc, SV *sv) |
|
|
301 | { |
|
|
302 | if (SvIsUV (sv)) |
|
|
303 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
|
|
304 | else if (SvIVX (sv) >= 0) |
|
|
305 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
|
|
306 | else |
|
|
307 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
|
|
308 | } |
|
|
309 | |
|
|
310 | ecb_inline void |
|
|
311 | encode_tag (enc_t *enc, UV tag) |
|
|
312 | { |
|
|
313 | encode_uint (enc, MAJOR_TAG, tag); |
|
|
314 | } |
|
|
315 | |
|
|
316 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
|
|
317 | ecb_noinline static void |
188 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
318 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
189 | { |
319 | { |
190 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
320 | STRLEN ulen = len; |
|
|
321 | U8 *p, *pend = (U8 *)str + len; |
|
|
322 | |
|
|
323 | for (p = (U8 *)str; p < pend; ++p) |
|
|
324 | ulen += *p >> 7; // count set high bits |
|
|
325 | |
|
|
326 | encode_uint (enc, MAJOR_TEXT, ulen); |
|
|
327 | |
|
|
328 | need (enc, ulen); |
|
|
329 | for (p = (U8 *)str; p < pend; ++p) |
|
|
330 | if (*p < 0x80) |
|
|
331 | *enc->cur++ = *p; |
|
|
332 | else |
|
|
333 | { |
|
|
334 | *enc->cur++ = 0xc0 + (*p >> 6); |
|
|
335 | *enc->cur++ = 0x80 + (*p & 63); |
|
|
336 | } |
|
|
337 | } |
|
|
338 | |
|
|
339 | ecb_inline void |
|
|
340 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
|
|
341 | { |
|
|
342 | if (ecb_expect_false (upgrade_utf8)) |
|
|
343 | if (!utf8) |
|
|
344 | { |
|
|
345 | encode_str_utf8 (enc, utf8, str, len); |
|
|
346 | return; |
|
|
347 | } |
|
|
348 | |
|
|
349 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
191 | need (enc, len); |
350 | need (enc, len); |
192 | memcpy (enc->cur, str, len); |
351 | memcpy (enc->cur, str, len); |
193 | enc->cur += len; |
352 | enc->cur += len; |
194 | } |
353 | } |
195 | |
354 | |
196 | static void encode_sv (enc_t *enc, SV *sv); |
355 | ecb_inline void |
|
|
356 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
|
|
357 | { |
|
|
358 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
|
|
359 | { |
|
|
360 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
|
|
361 | |
|
|
362 | if (SvOK (*svp)) |
|
|
363 | { |
|
|
364 | // already registered, use stringref |
|
|
365 | encode_tag (enc, CBOR_TAG_STRINGREF); |
|
|
366 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
367 | return; |
|
|
368 | } |
|
|
369 | else if (len >= minimum_string_length (enc->stringref_idx)) |
|
|
370 | { |
|
|
371 | // register only |
|
|
372 | sv_setuv (*svp, enc->stringref_idx); |
|
|
373 | ++enc->stringref_idx; |
|
|
374 | } |
|
|
375 | } |
|
|
376 | |
|
|
377 | encode_str (enc, upgrade_utf8, utf8, str, len); |
|
|
378 | } |
|
|
379 | |
|
|
380 | ecb_inline void |
|
|
381 | encode_float16 (enc_t *enc, NV nv) |
|
|
382 | { |
|
|
383 | need (enc, 1+2); |
|
|
384 | |
|
|
385 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT16; |
|
|
386 | |
|
|
387 | uint16_t fp = ecb_float_to_binary16 (nv); |
|
|
388 | |
|
|
389 | if (!ecb_big_endian ()) |
|
|
390 | fp = ecb_bswap16 (fp); |
|
|
391 | |
|
|
392 | memcpy (enc->cur, &fp, 2); |
|
|
393 | enc->cur += 2; |
|
|
394 | } |
|
|
395 | |
|
|
396 | ecb_inline void |
|
|
397 | encode_float32 (enc_t *enc, NV nv) |
|
|
398 | { |
|
|
399 | need (enc, 1+4); |
|
|
400 | |
|
|
401 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
|
|
402 | |
|
|
403 | uint32_t fp = ecb_float_to_binary32 (nv); |
|
|
404 | |
|
|
405 | if (!ecb_big_endian ()) |
|
|
406 | fp = ecb_bswap32 (fp); |
|
|
407 | |
|
|
408 | memcpy (enc->cur, &fp, 4); |
|
|
409 | enc->cur += 4; |
|
|
410 | } |
|
|
411 | |
|
|
412 | ecb_inline void |
|
|
413 | encode_float64 (enc_t *enc, NV nv) |
|
|
414 | { |
|
|
415 | need (enc, 1+8); |
|
|
416 | |
|
|
417 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
|
|
418 | |
|
|
419 | uint64_t fp = ecb_double_to_binary64 (nv); |
|
|
420 | |
|
|
421 | if (!ecb_big_endian ()) |
|
|
422 | fp = ecb_bswap64 (fp); |
|
|
423 | |
|
|
424 | memcpy (enc->cur, &fp, 8); |
|
|
425 | enc->cur += 8; |
|
|
426 | } |
|
|
427 | |
|
|
428 | ecb_inline void |
|
|
429 | encode_bool (enc_t *enc, int istrue) |
|
|
430 | { |
|
|
431 | encode_ch (enc, istrue ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
|
|
432 | } |
|
|
433 | |
|
|
434 | // encodes an arrayref containing key-value pairs as CBOR map |
|
|
435 | ecb_inline void |
|
|
436 | encode_array_as_map (enc_t *enc, SV *sv) |
|
|
437 | { |
|
|
438 | if (enc->depth >= enc->cbor.max_depth) |
|
|
439 | croak (ERR_NESTING_EXCEEDED); |
|
|
440 | |
|
|
441 | ++enc->depth; |
|
|
442 | |
|
|
443 | // as_map does error checking for us, but we re-check in case |
|
|
444 | // things have changed. |
|
|
445 | |
|
|
446 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
|
|
447 | croak ("CBOR::XS::as_map requires an array reference (did you change the array after calling as_map?)"); |
|
|
448 | |
|
|
449 | AV *av = (AV *)SvRV (sv); |
|
|
450 | int i, len = av_len (av); |
|
|
451 | |
|
|
452 | if (!(len & 1)) |
|
|
453 | croak ("CBOR::XS::as_map requires an even number of elements (did you change the array after calling as_map?)"); |
|
|
454 | |
|
|
455 | encode_uint (enc, MAJOR_MAP, (len + 1) >> 1); |
|
|
456 | |
|
|
457 | for (i = 0; i <= len; ++i) |
|
|
458 | { |
|
|
459 | SV **svp = av_fetch (av, i, 0); |
|
|
460 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
|
|
461 | } |
|
|
462 | |
|
|
463 | --enc->depth; |
|
|
464 | } |
|
|
465 | |
|
|
466 | ecb_inline void |
|
|
467 | encode_forced (enc_t *enc, UV type, SV *sv) |
|
|
468 | { |
|
|
469 | switch (type) |
|
|
470 | { |
|
|
471 | case AS_CBOR: |
|
|
472 | { |
|
|
473 | STRLEN len; |
|
|
474 | char *str = SvPVbyte (sv, len); |
|
|
475 | |
|
|
476 | need (enc, len); |
|
|
477 | memcpy (enc->cur, str, len); |
|
|
478 | enc->cur += len; |
|
|
479 | } |
|
|
480 | break; |
|
|
481 | |
|
|
482 | case AS_BYTES: |
|
|
483 | { |
|
|
484 | STRLEN len; |
|
|
485 | char *str = SvPVbyte (sv, len); |
|
|
486 | encode_strref (enc, 0, 0, str, len); |
|
|
487 | } |
|
|
488 | break; |
|
|
489 | |
|
|
490 | case AS_TEXT: |
|
|
491 | { |
|
|
492 | STRLEN len; |
|
|
493 | char *str = SvPVutf8 (sv, len); |
|
|
494 | encode_strref (enc, 1, 1, str, len); |
|
|
495 | } |
|
|
496 | break; |
|
|
497 | |
|
|
498 | case AS_INT: encode_int (enc, sv); break; |
|
|
499 | |
|
|
500 | case AS_FLOAT16: encode_float16 (enc, SvNV (sv)); break; |
|
|
501 | case AS_FLOAT32: encode_float32 (enc, SvNV (sv)); break; |
|
|
502 | case AS_FLOAT64: encode_float64 (enc, SvNV (sv)); break; |
|
|
503 | |
|
|
504 | case AS_MAP: encode_array_as_map (enc, sv); break; |
|
|
505 | |
|
|
506 | default: |
|
|
507 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
|
508 | } |
|
|
509 | } |
197 | |
510 | |
198 | static void |
511 | static void |
199 | encode_av (enc_t *enc, AV *av) |
512 | encode_av (enc_t *enc, AV *av) |
200 | { |
513 | { |
201 | int i, len = av_len (av); |
514 | int i, len = av_len (av); |
… | |
… | |
203 | if (enc->depth >= enc->cbor.max_depth) |
516 | if (enc->depth >= enc->cbor.max_depth) |
204 | croak (ERR_NESTING_EXCEEDED); |
517 | croak (ERR_NESTING_EXCEEDED); |
205 | |
518 | |
206 | ++enc->depth; |
519 | ++enc->depth; |
207 | |
520 | |
208 | encode_uint (enc, 0x80, len + 1); |
521 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
209 | |
522 | |
|
|
523 | if (ecb_expect_false (SvMAGICAL (av))) |
210 | for (i = 0; i <= len; ++i) |
524 | for (i = 0; i <= len; ++i) |
211 | { |
525 | { |
212 | SV **svp = av_fetch (av, i, 0); |
526 | SV **svp = av_fetch (av, i, 0); |
213 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
527 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
214 | } |
528 | } |
|
|
529 | else |
|
|
530 | for (i = 0; i <= len; ++i) |
|
|
531 | { |
|
|
532 | SV *sv = AvARRAY (av)[i]; |
|
|
533 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
|
|
534 | } |
215 | |
535 | |
216 | --enc->depth; |
536 | --enc->depth; |
217 | } |
537 | } |
218 | |
538 | |
219 | static void |
539 | static void |
… | |
… | |
227 | ++enc->depth; |
547 | ++enc->depth; |
228 | |
548 | |
229 | int pairs = hv_iterinit (hv); |
549 | int pairs = hv_iterinit (hv); |
230 | int mg = SvMAGICAL (hv); |
550 | int mg = SvMAGICAL (hv); |
231 | |
551 | |
232 | if (mg) |
552 | if (ecb_expect_false (mg)) |
233 | encode_ch (enc, 0xa0 | 31); |
553 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
234 | else |
554 | else |
235 | encode_uint (enc, 0xa0, pairs); |
555 | encode_uint (enc, MAJOR_MAP, pairs); |
236 | |
556 | |
237 | while ((he = hv_iternext (hv))) |
557 | while ((he = hv_iternext (hv))) |
238 | { |
558 | { |
239 | if (HeKLEN (he) == HEf_SVKEY) |
559 | if (HeKLEN (he) == HEf_SVKEY) |
240 | encode_sv (enc, HeSVKEY (he)); |
560 | encode_sv (enc, HeSVKEY (he)); |
241 | else |
561 | else |
242 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
562 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
243 | |
563 | |
244 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
564 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
245 | } |
565 | } |
246 | |
566 | |
247 | if (mg) |
567 | if (ecb_expect_false (mg)) |
248 | encode_ch (enc, 0xe0 | 31); |
568 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
249 | |
569 | |
250 | --enc->depth; |
570 | --enc->depth; |
251 | } |
571 | } |
252 | |
572 | |
253 | // encode objects, arrays and special \0=false and \1=true values. |
573 | // encode objects, arrays and special \0=false and \1=true values. |
254 | static void |
574 | static void |
255 | encode_rv (enc_t *enc, SV *sv) |
575 | encode_rv (enc_t *enc, SV *sv) |
256 | { |
576 | { |
257 | svtype svt; |
|
|
258 | |
|
|
259 | SvGETMAGIC (sv); |
577 | SvGETMAGIC (sv); |
|
|
578 | |
260 | svt = SvTYPE (sv); |
579 | svtype svt = SvTYPE (sv); |
261 | |
580 | |
262 | if (ecb_expect_false (SvOBJECT (sv))) |
581 | if (ecb_expect_false (SvOBJECT (sv))) |
263 | { |
582 | { |
264 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
583 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
265 | ? types_boolean_stash |
584 | ? types_boolean_stash |
… | |
… | |
270 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
589 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
271 | ? cbor_tagged_stash |
590 | ? cbor_tagged_stash |
272 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
591 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
273 | |
592 | |
274 | HV *stash = SvSTASH (sv); |
593 | HV *stash = SvSTASH (sv); |
275 | GV *method; |
|
|
276 | |
594 | |
277 | if (stash == boolean_stash) |
595 | if (stash == boolean_stash) |
278 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
596 | { |
|
|
597 | encode_bool (enc, SvIV (sv)); |
|
|
598 | return; |
|
|
599 | } |
279 | else if (stash == error_stash) |
600 | else if (stash == error_stash) |
280 | encode_ch (enc, 0xe0 | 23); |
601 | { |
|
|
602 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
603 | return; |
|
|
604 | } |
281 | else if (stash == tagged_stash) |
605 | else if (stash == tagged_stash) |
282 | { |
606 | { |
283 | if (svt != SVt_PVAV) |
607 | if (svt != SVt_PVAV) |
284 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
608 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
285 | |
609 | |
|
|
610 | switch (av_len ((AV *)sv)) |
|
|
611 | { |
|
|
612 | case 2-1: |
|
|
613 | // actually a tagged value |
286 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
614 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
287 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
615 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
|
616 | break; |
|
|
617 | |
|
|
618 | case 3-1: |
|
|
619 | // a forced type [value, type, undef] |
|
|
620 | encode_forced (enc, SvUV (*av_fetch ((AV *)sv, 1, 1)), *av_fetch ((AV *)sv, 0, 1)); |
|
|
621 | break; |
|
|
622 | |
|
|
623 | default: |
|
|
624 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
|
625 | } |
|
|
626 | |
|
|
627 | return; |
|
|
628 | } |
|
|
629 | } |
|
|
630 | |
|
|
631 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
|
|
632 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
|
|
633 | { |
|
|
634 | if (ecb_expect_false (!enc->shareable)) |
|
|
635 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
636 | |
|
|
637 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
638 | |
|
|
639 | if (SvOK (*svp)) |
288 | } |
640 | { |
|
|
641 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
642 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
643 | return; |
|
|
644 | } |
|
|
645 | else |
|
|
646 | { |
|
|
647 | sv_setuv (*svp, enc->shareable_idx); |
|
|
648 | ++enc->shareable_idx; |
|
|
649 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
650 | } |
|
|
651 | } |
|
|
652 | |
|
|
653 | if (ecb_expect_false (SvOBJECT (sv))) |
|
|
654 | { |
|
|
655 | HV *stash = SvSTASH (sv); |
|
|
656 | GV *method; |
|
|
657 | |
|
|
658 | if (enc->cbor.flags & F_FORBID_OBJECTS) |
|
|
659 | croak ("encountered object '%s', but forbid_objects is enabled", |
|
|
660 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
289 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
661 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
290 | { |
662 | { |
291 | dSP; |
663 | dSP; |
292 | |
664 | |
293 | ENTER; SAVETMPS; PUSHMARK (SP); |
665 | ENTER; SAVETMPS; |
|
|
666 | PUSHMARK (SP); |
294 | // we re-bless the reference to get overload and other niceties right |
667 | // we re-bless the reference to get overload and other niceties right |
295 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
668 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
296 | |
669 | |
297 | PUTBACK; |
670 | PUTBACK; |
298 | // G_SCALAR ensures that return value is 1 |
671 | // G_SCALAR ensures that return value is 1 |
… | |
… | |
311 | } |
684 | } |
312 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
685 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
313 | { |
686 | { |
314 | dSP; |
687 | dSP; |
315 | |
688 | |
316 | ENTER; SAVETMPS; PUSHMARK (SP); |
689 | ENTER; SAVETMPS; |
|
|
690 | PUSHMARK (SP); |
317 | EXTEND (SP, 2); |
691 | EXTEND (SP, 2); |
318 | // we re-bless the reference to get overload and other niceties right |
692 | // we re-bless the reference to get overload and other niceties right |
319 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
693 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
320 | PUSHs (sv_cbor); |
694 | PUSHs (sv_cbor); |
321 | |
695 | |
… | |
… | |
325 | |
699 | |
326 | // catch this surprisingly common error |
700 | // catch this surprisingly common error |
327 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
701 | 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)); |
702 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
329 | |
703 | |
330 | encode_uint (enc, 0xc0, CBOR_TAG_PERL_OBJECT); |
704 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
331 | encode_uint (enc, 0x80, count + 1); |
705 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
332 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
706 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
333 | |
707 | |
334 | while (count) |
708 | { |
|
|
709 | int i; |
|
|
710 | |
|
|
711 | for (i = 0; i < count; ++i) |
335 | encode_sv (enc, SP[1 - count--]); |
712 | encode_sv (enc, SP[i + 1 - count]); |
|
|
713 | |
|
|
714 | SP -= count; |
|
|
715 | } |
336 | |
716 | |
337 | PUTBACK; |
717 | PUTBACK; |
338 | |
718 | |
339 | FREETMPS; LEAVE; |
719 | FREETMPS; LEAVE; |
340 | } |
720 | } |
… | |
… | |
344 | } |
724 | } |
345 | else if (svt == SVt_PVHV) |
725 | else if (svt == SVt_PVHV) |
346 | encode_hv (enc, (HV *)sv); |
726 | encode_hv (enc, (HV *)sv); |
347 | else if (svt == SVt_PVAV) |
727 | else if (svt == SVt_PVAV) |
348 | encode_av (enc, (AV *)sv); |
728 | encode_av (enc, (AV *)sv); |
349 | else if (svt < SVt_PVAV) |
|
|
350 | { |
|
|
351 | STRLEN len = 0; |
|
|
352 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
353 | |
|
|
354 | if (len == 1 && *pv == '1') |
|
|
355 | encode_ch (enc, 0xe0 | 21); |
|
|
356 | else if (len == 1 && *pv == '0') |
|
|
357 | encode_ch (enc, 0xe0 | 20); |
|
|
358 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
359 | encode_ch (enc, 0xe0 | 23); |
|
|
360 | else |
|
|
361 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
362 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
363 | } |
|
|
364 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
365 | encode_ch (enc, 0xe0 | 23); |
|
|
366 | else |
729 | else |
367 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
730 | { |
368 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
731 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
732 | encode_sv (enc, sv); |
|
|
733 | } |
369 | } |
734 | } |
370 | |
735 | |
371 | static void |
736 | static void |
372 | encode_nv (enc_t *enc, SV *sv) |
737 | encode_nv (enc_t *enc, SV *sv) |
373 | { |
738 | { |
374 | double nv = SvNVX (sv); |
739 | double nv = SvNVX (sv); |
375 | |
740 | |
376 | need (enc, 9); |
741 | need (enc, 9); |
377 | |
742 | |
378 | if (ecb_expect_false (nv == (U32)nv)) |
743 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
379 | encode_uint (enc, 0x00, (U32)nv); |
744 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
380 | //TODO: maybe I32? |
745 | //TODO: maybe I32? |
381 | else if (ecb_expect_false (nv == (float)nv)) |
746 | else if (ecb_expect_false (nv == (float)nv)) |
382 | { |
747 | encode_float32 (enc, nv); |
383 | uint32_t fp = ecb_float_to_binary32 (nv); |
|
|
384 | |
|
|
385 | *enc->cur++ = 0xe0 | 26; |
|
|
386 | |
|
|
387 | if (!ecb_big_endian ()) |
|
|
388 | fp = ecb_bswap32 (fp); |
|
|
389 | |
|
|
390 | memcpy (enc->cur, &fp, 4); |
|
|
391 | enc->cur += 4; |
|
|
392 | } |
|
|
393 | else |
748 | else |
394 | { |
749 | encode_float64 (enc, nv); |
395 | uint64_t fp = ecb_double_to_binary64 (nv); |
|
|
396 | |
|
|
397 | *enc->cur++ = 0xe0 | 27; |
|
|
398 | |
|
|
399 | if (!ecb_big_endian ()) |
|
|
400 | fp = ecb_bswap64 (fp); |
|
|
401 | |
|
|
402 | memcpy (enc->cur, &fp, 8); |
|
|
403 | enc->cur += 8; |
|
|
404 | } |
|
|
405 | } |
750 | } |
406 | |
751 | |
407 | static void |
752 | static void |
408 | encode_sv (enc_t *enc, SV *sv) |
753 | encode_sv (enc_t *enc, SV *sv) |
409 | { |
754 | { |
… | |
… | |
411 | |
756 | |
412 | if (SvPOKp (sv)) |
757 | if (SvPOKp (sv)) |
413 | { |
758 | { |
414 | STRLEN len; |
759 | STRLEN len; |
415 | char *str = SvPV (sv, len); |
760 | char *str = SvPV (sv, len); |
416 | encode_str (enc, SvUTF8 (sv), str, len); |
761 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
417 | } |
762 | } |
418 | else if (SvNOKp (sv)) |
763 | else if (SvNOKp (sv)) |
419 | encode_nv (enc, sv); |
764 | encode_nv (enc, sv); |
420 | else if (SvIOKp (sv)) |
765 | else if (SvIOKp (sv)) |
421 | { |
766 | encode_int (enc, sv); |
422 | if (SvIsUV (sv)) |
|
|
423 | encode_uint (enc, 0x00, SvUVX (sv)); |
|
|
424 | else if (SvIVX (sv) >= 0) |
|
|
425 | encode_uint (enc, 0x00, SvIVX (sv)); |
|
|
426 | else |
|
|
427 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
|
|
428 | } |
|
|
429 | else if (SvROK (sv)) |
767 | else if (SvROK (sv)) |
430 | encode_rv (enc, SvRV (sv)); |
768 | encode_rv (enc, SvRV (sv)); |
431 | else if (!SvOK (sv)) |
769 | else if (!SvOK (sv)) |
432 | encode_ch (enc, 0xe0 | 22); |
770 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
433 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
771 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
434 | encode_ch (enc, 0xe0 | 23); |
772 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
435 | else |
773 | else |
436 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
774 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
437 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
775 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
438 | } |
776 | } |
439 | |
777 | |
440 | static SV * |
778 | static SV * |
441 | encode_cbor (SV *scalar, CBOR *cbor) |
779 | encode_cbor (SV *scalar, CBOR *cbor) |
442 | { |
780 | { |
443 | enc_t enc; |
781 | enc_t enc = { 0 }; |
444 | |
782 | |
445 | enc.cbor = *cbor; |
783 | enc.cbor = *cbor; |
446 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
784 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
447 | enc.cur = SvPVX (enc.sv); |
785 | enc.cur = SvPVX (enc.sv); |
448 | enc.end = SvEND (enc.sv); |
786 | enc.end = SvEND (enc.sv); |
449 | enc.depth = 0; |
|
|
450 | |
787 | |
451 | SvPOK_only (enc.sv); |
788 | SvPOK_only (enc.sv); |
|
|
789 | |
|
|
790 | if (cbor->flags & F_PACK_STRINGS) |
|
|
791 | { |
|
|
792 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
793 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
794 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
795 | } |
|
|
796 | |
452 | encode_sv (&enc, scalar); |
797 | encode_sv (&enc, scalar); |
453 | |
798 | |
454 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
799 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
455 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
800 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
456 | |
801 | |
… | |
… | |
470 | U8 *end; // end of input string |
815 | U8 *end; // end of input string |
471 | const char *err; // parse error, if != 0 |
816 | const char *err; // parse error, if != 0 |
472 | CBOR cbor; |
817 | CBOR cbor; |
473 | U32 depth; // recursion depth |
818 | U32 depth; // recursion depth |
474 | U32 maxdepth; // recursion depth limit |
819 | U32 maxdepth; // recursion depth limit |
|
|
820 | AV *shareable; |
|
|
821 | AV *stringref; |
|
|
822 | SV *decode_tagged; |
|
|
823 | SV *err_sv; // optional sv for error, needs to be freed |
475 | } dec_t; |
824 | } dec_t; |
476 | |
825 | |
477 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
826 | // set dec->err to ERRSV |
|
|
827 | ecb_cold static void |
|
|
828 | err_errsv (dec_t *dec) |
|
|
829 | { |
|
|
830 | if (!dec->err) |
|
|
831 | { |
|
|
832 | dec->err_sv = newSVsv (ERRSV); |
478 | |
833 | |
479 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
834 | // chop off the trailing \n |
|
|
835 | SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
|
|
836 | *SvEND (dec->err_sv) = 0; |
480 | |
837 | |
|
|
838 | dec->err = SvPVutf8_nolen (dec->err_sv); |
|
|
839 | } |
|
|
840 | } |
|
|
841 | |
|
|
842 | // the following functions are used to reduce code size and help the compiler to optimise |
|
|
843 | ecb_cold static void |
|
|
844 | err_set (dec_t *dec, const char *reason) |
|
|
845 | { |
|
|
846 | if (!dec->err) |
|
|
847 | dec->err = reason; |
|
|
848 | } |
|
|
849 | |
|
|
850 | ecb_cold static void |
|
|
851 | err_unexpected_end (dec_t *dec) |
|
|
852 | { |
|
|
853 | err_set (dec, "unexpected end of CBOR data"); |
|
|
854 | } |
|
|
855 | |
|
|
856 | #define ERR_DO(do) SB do; goto fail; SE |
|
|
857 | #define ERR(reason) ERR_DO (err_set (dec, reason)) |
|
|
858 | #define ERR_ERRSV ERR_DO (err_errsv (dec)) |
|
|
859 | |
|
|
860 | #define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec)) |
|
|
861 | |
481 | #define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
862 | #define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
482 | #define DEC_DEC_DEPTH --dec->depth |
863 | #define DEC_DEC_DEPTH --dec->depth |
483 | |
864 | |
484 | static UV |
865 | static UV |
485 | decode_uint (dec_t *dec) |
866 | decode_uint (dec_t *dec) |
486 | { |
867 | { |
487 | switch (*dec->cur & 31) |
868 | U8 m = *dec->cur & MINOR_MASK; |
488 | { |
869 | ++dec->cur; |
489 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
490 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
491 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
492 | return *dec->cur++ & 31; |
|
|
493 | |
870 | |
494 | case 24: |
871 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
872 | return m; |
|
|
873 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
874 | { |
495 | WANT (2); |
875 | WANT (1); |
496 | dec->cur += 2; |
876 | dec->cur += 1; |
497 | return dec->cur[-1]; |
877 | return dec->cur[-1]; |
498 | |
878 | } |
499 | case 25: |
879 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
880 | { |
500 | WANT (3); |
881 | WANT (2); |
501 | dec->cur += 3; |
882 | dec->cur += 2; |
502 | return (((UV)dec->cur[-2]) << 8) |
883 | return (((UV)dec->cur[-2]) << 8) |
503 | | ((UV)dec->cur[-1]); |
884 | | ((UV)dec->cur[-1]); |
504 | |
885 | } |
505 | case 26: |
886 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
887 | { |
506 | WANT (5); |
888 | WANT (4); |
507 | dec->cur += 5; |
889 | dec->cur += 4; |
508 | return (((UV)dec->cur[-4]) << 24) |
890 | return (((UV)dec->cur[-4]) << 24) |
509 | | (((UV)dec->cur[-3]) << 16) |
891 | | (((UV)dec->cur[-3]) << 16) |
510 | | (((UV)dec->cur[-2]) << 8) |
892 | | (((UV)dec->cur[-2]) << 8) |
511 | | ((UV)dec->cur[-1]); |
893 | | ((UV)dec->cur[-1]); |
512 | |
894 | } |
513 | case 27: |
895 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
896 | { |
514 | WANT (9); |
897 | WANT (8); |
515 | dec->cur += 9; |
898 | dec->cur += 8; |
|
|
899 | |
|
|
900 | return |
|
|
901 | #if UVSIZE < 8 |
|
|
902 | 0 |
|
|
903 | #else |
516 | return (((UV)dec->cur[-8]) << 56) |
904 | (((UV)dec->cur[-8]) << 56) |
517 | | (((UV)dec->cur[-7]) << 48) |
905 | | (((UV)dec->cur[-7]) << 48) |
518 | | (((UV)dec->cur[-6]) << 40) |
906 | | (((UV)dec->cur[-6]) << 40) |
519 | | (((UV)dec->cur[-5]) << 32) |
907 | | (((UV)dec->cur[-5]) << 32) |
|
|
908 | #endif |
520 | | (((UV)dec->cur[-4]) << 24) |
909 | | (((UV)dec->cur[-4]) << 24) |
521 | | (((UV)dec->cur[-3]) << 16) |
910 | | (((UV)dec->cur[-3]) << 16) |
522 | | (((UV)dec->cur[-2]) << 8) |
911 | | (((UV)dec->cur[-2]) << 8) |
523 | | ((UV)dec->cur[-1]); |
912 | | ((UV)dec->cur[-1]); |
524 | |
913 | } |
525 | default: |
914 | else |
526 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
915 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
527 | } |
|
|
528 | |
916 | |
529 | fail: |
917 | fail: |
530 | return 0; |
918 | return 0; |
531 | } |
919 | } |
532 | |
920 | |
… | |
… | |
537 | { |
925 | { |
538 | AV *av = newAV (); |
926 | AV *av = newAV (); |
539 | |
927 | |
540 | DEC_INC_DEPTH; |
928 | DEC_INC_DEPTH; |
541 | |
929 | |
542 | if ((*dec->cur & 31) == 31) |
930 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
543 | { |
931 | { |
544 | ++dec->cur; |
932 | ++dec->cur; |
545 | |
933 | |
546 | for (;;) |
934 | for (;;) |
547 | { |
935 | { |
548 | WANT (1); |
936 | WANT (1); |
549 | |
937 | |
550 | if (*dec->cur == (0xe0 | 31)) |
938 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
551 | { |
939 | { |
552 | ++dec->cur; |
940 | ++dec->cur; |
553 | break; |
941 | break; |
554 | } |
942 | } |
555 | |
943 | |
556 | av_push (av, decode_sv (dec)); |
944 | av_push (av, decode_sv (dec)); |
557 | } |
945 | } |
558 | } |
946 | } |
559 | else |
947 | else |
560 | { |
948 | { |
561 | int i, len = decode_uint (dec); |
949 | UV i, len = decode_uint (dec); |
562 | |
950 | |
|
|
951 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
563 | av_fill (av, len - 1); |
952 | av_fill (av, len - 1); |
564 | |
953 | |
565 | for (i = 0; i < len; ++i) |
954 | for (i = 0; i < len; ++i) |
566 | AvARRAY (av)[i] = decode_sv (dec); |
955 | AvARRAY (av)[i] = decode_sv (dec); |
567 | } |
956 | } |
568 | |
957 | |
569 | DEC_DEC_DEPTH; |
958 | DEC_DEC_DEPTH; |
570 | return newRV_noinc ((SV *)av); |
959 | return newRV_noinc ((SV *)av); |
571 | |
960 | |
572 | fail: |
961 | fail: |
573 | SvREFCNT_dec (av); |
962 | SvREFCNT_dec_NN (av); |
574 | DEC_DEC_DEPTH; |
963 | DEC_DEC_DEPTH; |
575 | return &PL_sv_undef; |
964 | return &PL_sv_undef; |
576 | } |
965 | } |
577 | |
966 | |
|
|
967 | static void |
|
|
968 | decode_he (dec_t *dec, HV *hv) |
|
|
969 | { |
|
|
970 | // for speed reasons, we specialcase single-string |
|
|
971 | // byte or utf-8 strings as keys, but only when !stringref |
|
|
972 | |
|
|
973 | if (ecb_expect_true (!dec->stringref)) |
|
|
974 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
|
|
975 | { |
|
|
976 | STRLEN len = decode_uint (dec); |
|
|
977 | char *key = (char *)dec->cur; |
|
|
978 | |
|
|
979 | WANT (len); |
|
|
980 | dec->cur += len; |
|
|
981 | |
|
|
982 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
983 | |
|
|
984 | return; |
|
|
985 | } |
|
|
986 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
|
|
987 | { |
|
|
988 | STRLEN len = decode_uint (dec); |
|
|
989 | char *key = (char *)dec->cur; |
|
|
990 | |
|
|
991 | WANT (len); |
|
|
992 | dec->cur += len; |
|
|
993 | |
|
|
994 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
995 | if (!cbor_is_utf8_string ((U8 *)key, len)) |
|
|
996 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
|
|
997 | |
|
|
998 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
999 | |
|
|
1000 | return; |
|
|
1001 | } |
|
|
1002 | |
|
|
1003 | SV *k = decode_sv (dec); |
|
|
1004 | SV *v = decode_sv (dec); |
|
|
1005 | |
|
|
1006 | // we leak memory if uncaught exceptions are thrown by random magical |
|
|
1007 | // methods, and this is hopefully the only place where it can happen, |
|
|
1008 | // so if there is a chance of an exception, take the very slow path. |
|
|
1009 | // since catching exceptions is "undocumented/internal/forbidden" by |
|
|
1010 | // the new p5p powers, we need to call out to a perl function :/ |
|
|
1011 | if (ecb_expect_false (SvAMAGIC (k))) |
|
|
1012 | { |
|
|
1013 | dSP; |
|
|
1014 | |
|
|
1015 | ENTER; SAVETMPS; |
|
|
1016 | PUSHMARK (SP); |
|
|
1017 | EXTEND (SP, 3); |
|
|
1018 | PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
|
|
1019 | PUSHs (sv_2mortal (k)); |
|
|
1020 | PUSHs (sv_2mortal (v)); |
|
|
1021 | |
|
|
1022 | PUTBACK; |
|
|
1023 | call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
|
|
1024 | SPAGAIN; |
|
|
1025 | |
|
|
1026 | FREETMPS; LEAVE; |
|
|
1027 | |
|
|
1028 | if (SvTRUE (ERRSV)) |
|
|
1029 | ERR_ERRSV; |
|
|
1030 | |
|
|
1031 | return; |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | hv_store_ent (hv, k, v, 0); |
|
|
1035 | SvREFCNT_dec_NN (k); |
|
|
1036 | |
|
|
1037 | fail: |
|
|
1038 | ; |
|
|
1039 | } |
|
|
1040 | |
578 | static SV * |
1041 | static SV * |
579 | decode_hv (dec_t *dec) |
1042 | decode_hv (dec_t *dec) |
580 | { |
1043 | { |
581 | HV *hv = newHV (); |
1044 | HV *hv = newHV (); |
582 | |
1045 | |
583 | DEC_INC_DEPTH; |
1046 | DEC_INC_DEPTH; |
584 | |
1047 | |
585 | if ((*dec->cur & 31) == 31) |
1048 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
586 | { |
1049 | { |
587 | ++dec->cur; |
1050 | ++dec->cur; |
588 | |
1051 | |
589 | for (;;) |
1052 | for (;;) |
590 | { |
1053 | { |
591 | WANT (1); |
1054 | WANT (1); |
592 | |
1055 | |
593 | if (*dec->cur == (0xe0 | 31)) |
1056 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
594 | { |
1057 | { |
595 | ++dec->cur; |
1058 | ++dec->cur; |
596 | break; |
1059 | break; |
597 | } |
1060 | } |
598 | |
1061 | |
599 | SV *k = decode_sv (dec); |
1062 | decode_he (dec, hv); |
600 | SV *v = decode_sv (dec); |
|
|
601 | |
|
|
602 | hv_store_ent (hv, k, v, 0); |
|
|
603 | SvREFCNT_dec (k); |
|
|
604 | } |
1063 | } |
605 | } |
1064 | } |
606 | else |
1065 | else |
607 | { |
1066 | { |
608 | int len = decode_uint (dec); |
1067 | UV pairs = decode_uint (dec); |
609 | |
1068 | |
|
|
1069 | WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
|
|
1070 | |
610 | while (len--) |
1071 | while (pairs--) |
611 | { |
1072 | decode_he (dec, hv); |
612 | SV *k = decode_sv (dec); |
|
|
613 | SV *v = decode_sv (dec); |
|
|
614 | |
|
|
615 | hv_store_ent (hv, k, v, 0); |
|
|
616 | SvREFCNT_dec (k); |
|
|
617 | } |
|
|
618 | } |
1073 | } |
619 | |
1074 | |
620 | DEC_DEC_DEPTH; |
1075 | DEC_DEC_DEPTH; |
621 | return newRV_noinc ((SV *)hv); |
1076 | return newRV_noinc ((SV *)hv); |
622 | |
1077 | |
623 | fail: |
1078 | fail: |
624 | SvREFCNT_dec (hv); |
1079 | SvREFCNT_dec_NN (hv); |
625 | DEC_DEC_DEPTH; |
1080 | DEC_DEC_DEPTH; |
626 | return &PL_sv_undef; |
1081 | return &PL_sv_undef; |
627 | } |
1082 | } |
628 | |
1083 | |
629 | static SV * |
1084 | static SV * |
630 | decode_str (dec_t *dec, int utf8) |
1085 | decode_str (dec_t *dec, int utf8) |
631 | { |
1086 | { |
632 | SV *sv = 0; |
1087 | SV *sv = 0; |
633 | |
1088 | |
634 | if ((*dec->cur & 31) == 31) |
1089 | if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF)) |
635 | { |
1090 | { |
|
|
1091 | // indefinite length strings |
636 | ++dec->cur; |
1092 | ++dec->cur; |
637 | |
1093 | |
|
|
1094 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
1095 | |
638 | sv = newSVpvn ("", 0); |
1096 | sv = newSVpvn ("", 0); |
639 | |
1097 | |
640 | // not very fast, and certainly not robust against illegal input |
|
|
641 | for (;;) |
1098 | for (;;) |
642 | { |
1099 | { |
643 | WANT (1); |
1100 | WANT (1); |
644 | |
1101 | |
645 | if (*dec->cur == (0xe0 | 31)) |
1102 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
1103 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
646 | { |
1104 | { |
647 | ++dec->cur; |
1105 | ++dec->cur; |
648 | break; |
1106 | break; |
649 | } |
1107 | } |
|
|
1108 | else |
|
|
1109 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
650 | |
1110 | |
651 | sv_catsv (sv, decode_sv (dec)); |
1111 | STRLEN len = decode_uint (dec); |
|
|
1112 | |
|
|
1113 | WANT (len); |
|
|
1114 | sv_catpvn (sv, dec->cur, len); |
|
|
1115 | dec->cur += len; |
652 | } |
1116 | } |
653 | } |
1117 | } |
654 | else |
1118 | else |
655 | { |
1119 | { |
656 | STRLEN len = decode_uint (dec); |
1120 | STRLEN len = decode_uint (dec); |
657 | |
1121 | |
658 | WANT (len); |
1122 | WANT (len); |
659 | sv = newSVpvn (dec->cur, len); |
1123 | sv = newSVpvn (dec->cur, len); |
660 | dec->cur += len; |
1124 | dec->cur += len; |
|
|
1125 | |
|
|
1126 | if (ecb_expect_false (dec->stringref) |
|
|
1127 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
1128 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
661 | } |
1129 | } |
662 | |
1130 | |
663 | if (utf8) |
1131 | if (utf8) |
|
|
1132 | { |
|
|
1133 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
1134 | if (!cbor_is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
1135 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
1136 | |
664 | SvUTF8_on (sv); |
1137 | SvUTF8_on (sv); |
|
|
1138 | } |
665 | |
1139 | |
666 | return sv; |
1140 | return sv; |
667 | |
1141 | |
668 | fail: |
1142 | fail: |
669 | SvREFCNT_dec (sv); |
1143 | SvREFCNT_dec (sv); |
… | |
… | |
671 | } |
1145 | } |
672 | |
1146 | |
673 | static SV * |
1147 | static SV * |
674 | decode_tagged (dec_t *dec) |
1148 | decode_tagged (dec_t *dec) |
675 | { |
1149 | { |
|
|
1150 | SV *sv = 0; |
676 | UV tag = decode_uint (dec); |
1151 | UV tag = decode_uint (dec); |
|
|
1152 | |
|
|
1153 | WANT (1); |
|
|
1154 | |
|
|
1155 | switch (tag) |
|
|
1156 | { |
|
|
1157 | case CBOR_TAG_MAGIC: |
677 | SV *sv = decode_sv (dec); |
1158 | sv = decode_sv (dec); |
|
|
1159 | break; |
678 | |
1160 | |
679 | if (tag == CBOR_TAG_MAGIC) |
1161 | case CBOR_TAG_INDIRECTION: |
680 | return sv; |
1162 | sv = newRV_noinc (decode_sv (dec)); |
681 | else if (tag == CBOR_TAG_PERL_OBJECT) |
1163 | break; |
682 | { |
1164 | |
|
|
1165 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
1166 | { |
|
|
1167 | // do not use SAVETMPS/FREETMPS, as these will |
|
|
1168 | // erase mortalised caches, e.g. "shareable" |
|
|
1169 | ENTER; |
|
|
1170 | |
|
|
1171 | SAVESPTR (dec->stringref); |
|
|
1172 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
1173 | |
|
|
1174 | sv = decode_sv (dec); |
|
|
1175 | |
|
|
1176 | LEAVE; |
|
|
1177 | } |
|
|
1178 | break; |
|
|
1179 | |
|
|
1180 | case CBOR_TAG_STRINGREF: |
|
|
1181 | { |
|
|
1182 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
1183 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
1184 | |
|
|
1185 | UV idx = decode_uint (dec); |
|
|
1186 | |
|
|
1187 | if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref))) |
|
|
1188 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
1189 | |
|
|
1190 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
1191 | } |
|
|
1192 | break; |
|
|
1193 | |
|
|
1194 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
1195 | { |
|
|
1196 | if (ecb_expect_false (!dec->shareable)) |
|
|
1197 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
1198 | |
|
|
1199 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
1200 | { |
|
|
1201 | sv = newSV (0); |
|
|
1202 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
1203 | |
|
|
1204 | SV *osv = decode_sv (dec); |
|
|
1205 | sv_setsv (sv, osv); |
|
|
1206 | SvREFCNT_dec_NN (osv); |
|
|
1207 | } |
|
|
1208 | else |
|
|
1209 | { |
|
|
1210 | av_push (dec->shareable, &PL_sv_undef); |
|
|
1211 | int idx = AvFILLp (dec->shareable); |
|
|
1212 | sv = decode_sv (dec); |
|
|
1213 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
1214 | } |
|
|
1215 | } |
|
|
1216 | break; |
|
|
1217 | |
|
|
1218 | case CBOR_TAG_VALUE_SHAREDREF: |
|
|
1219 | { |
|
|
1220 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
1221 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
1222 | |
|
|
1223 | UV idx = decode_uint (dec); |
|
|
1224 | |
|
|
1225 | if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable))) |
|
|
1226 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
1227 | |
|
|
1228 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
1229 | |
|
|
1230 | if (sv == &PL_sv_undef) |
|
|
1231 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
|
|
1232 | } |
|
|
1233 | break; |
|
|
1234 | |
|
|
1235 | case CBOR_TAG_PERL_OBJECT: |
|
|
1236 | { |
|
|
1237 | if (dec->cbor.flags & F_FORBID_OBJECTS) |
|
|
1238 | goto filter; |
|
|
1239 | |
|
|
1240 | sv = decode_sv (dec); |
|
|
1241 | |
683 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
1242 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
684 | ERR ("corrupted CBOR data (non-array perl object)"); |
1243 | ERR ("corrupted CBOR data (non-array perl object)"); |
685 | |
1244 | |
686 | AV *av = (AV *)SvRV (sv); |
1245 | AV *av = (AV *)SvRV (sv); |
687 | int len = av_len (av) + 1; |
1246 | int len = av_len (av) + 1; |
688 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
1247 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
689 | |
1248 | |
690 | if (!stash) |
1249 | if (!stash) |
691 | ERR ("cannot decode perl-object (package does not exist)"); |
1250 | ERR ("cannot decode perl-object (package does not exist)"); |
692 | |
1251 | |
693 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
1252 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
694 | |
1253 | |
695 | if (!method) |
1254 | if (!method) |
696 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1255 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
697 | |
1256 | |
698 | dSP; |
1257 | dSP; |
699 | |
1258 | |
700 | ENTER; SAVETMPS; PUSHMARK (SP); |
1259 | ENTER; SAVETMPS; |
|
|
1260 | PUSHMARK (SP); |
701 | EXTEND (SP, len + 1); |
1261 | EXTEND (SP, len + 1); |
702 | // we re-bless the reference to get overload and other niceties right |
1262 | // we re-bless the reference to get overload and other niceties right |
703 | PUSHs (*av_fetch (av, 0, 1)); |
1263 | PUSHs (*av_fetch (av, 0, 1)); |
704 | PUSHs (sv_cbor); |
1264 | PUSHs (sv_cbor); |
705 | |
1265 | |
706 | int i; |
1266 | int i; |
707 | |
1267 | |
708 | for (i = 1; i < len; ++i) |
1268 | for (i = 1; i < len; ++i) |
709 | PUSHs (*av_fetch (av, i, 1)); |
1269 | PUSHs (*av_fetch (av, i, 1)); |
710 | |
1270 | |
711 | PUTBACK; |
1271 | PUTBACK; |
712 | call_sv ((SV *)GvCV (method), G_SCALAR); |
1272 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
713 | SPAGAIN; |
1273 | SPAGAIN; |
714 | |
1274 | |
|
|
1275 | if (SvTRUE (ERRSV)) |
|
|
1276 | { |
|
|
1277 | FREETMPS; LEAVE; |
|
|
1278 | ERR_ERRSV; |
|
|
1279 | } |
|
|
1280 | |
|
|
1281 | SvREFCNT_dec_NN (sv); |
715 | sv = SvREFCNT_inc (POPs); |
1282 | sv = SvREFCNT_inc (POPs); |
716 | |
1283 | |
717 | PUTBACK; |
1284 | PUTBACK; |
718 | |
1285 | |
719 | FREETMPS; LEAVE; |
1286 | FREETMPS; LEAVE; |
|
|
1287 | } |
|
|
1288 | break; |
720 | |
1289 | |
721 | return sv; |
1290 | default: |
722 | } |
1291 | filter: |
723 | else |
1292 | { |
724 | { |
1293 | SV *tag_sv = newSVuv (tag); |
|
|
1294 | |
|
|
1295 | sv = decode_sv (dec); |
|
|
1296 | |
|
|
1297 | dSP; |
|
|
1298 | ENTER; SAVETMPS; |
|
|
1299 | PUSHMARK (SP); |
|
|
1300 | EXTEND (SP, 2); |
|
|
1301 | PUSHs (tag_sv); |
|
|
1302 | PUSHs (sv); |
|
|
1303 | |
|
|
1304 | PUTBACK; |
|
|
1305 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
1306 | SPAGAIN; |
|
|
1307 | |
|
|
1308 | if (SvTRUE (ERRSV)) |
|
|
1309 | { |
|
|
1310 | SvREFCNT_dec_NN (tag_sv); |
|
|
1311 | FREETMPS; LEAVE; |
|
|
1312 | ERR_ERRSV; |
|
|
1313 | } |
|
|
1314 | |
|
|
1315 | if (count) |
|
|
1316 | { |
|
|
1317 | SvREFCNT_dec_NN (tag_sv); |
|
|
1318 | SvREFCNT_dec_NN (sv); |
|
|
1319 | sv = SvREFCNT_inc_NN (TOPs); |
|
|
1320 | SP -= count; |
|
|
1321 | } |
|
|
1322 | else |
|
|
1323 | { |
725 | AV *av = newAV (); |
1324 | AV *av = newAV (); |
726 | av_push (av, newSVuv (tag)); |
1325 | av_push (av, tag_sv); |
727 | av_push (av, sv); |
1326 | av_push (av, sv); |
728 | |
1327 | |
729 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1328 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
730 | ? cbor_tagged_stash |
1329 | ? cbor_tagged_stash |
731 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
1330 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
732 | |
|
|
733 | return sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
1331 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
1332 | } |
|
|
1333 | |
|
|
1334 | PUTBACK; |
|
|
1335 | |
|
|
1336 | FREETMPS; LEAVE; |
|
|
1337 | } |
|
|
1338 | break; |
734 | } |
1339 | } |
|
|
1340 | |
|
|
1341 | return sv; |
735 | |
1342 | |
736 | fail: |
1343 | fail: |
737 | SvREFCNT_dec (sv); |
1344 | SvREFCNT_dec (sv); |
738 | return &PL_sv_undef; |
1345 | return &PL_sv_undef; |
739 | } |
1346 | } |
… | |
… | |
741 | static SV * |
1348 | static SV * |
742 | decode_sv (dec_t *dec) |
1349 | decode_sv (dec_t *dec) |
743 | { |
1350 | { |
744 | WANT (1); |
1351 | WANT (1); |
745 | |
1352 | |
746 | switch (*dec->cur >> 5) |
1353 | switch (*dec->cur >> MAJOR_SHIFT) |
747 | { |
1354 | { |
748 | case 0: // unsigned int |
1355 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
749 | return newSVuv (decode_uint (dec)); |
1356 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
750 | case 1: // negative int |
1357 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
751 | return newSViv (-1 - (IV)decode_uint (dec)); |
1358 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
752 | case 2: // octet string |
1359 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
753 | return decode_str (dec, 0); |
1360 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
754 | case 3: // utf-8 string |
1361 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
755 | return decode_str (dec, 1); |
1362 | |
756 | case 4: // array |
1363 | case MAJOR_MISC >> MAJOR_SHIFT: |
757 | return decode_av (dec); |
|
|
758 | case 5: // map |
|
|
759 | return decode_hv (dec); |
|
|
760 | case 6: // tag |
|
|
761 | return decode_tagged (dec); |
|
|
762 | case 7: // misc |
|
|
763 | switch (*dec->cur++ & 31) |
1364 | switch (*dec->cur++ & MINOR_MASK) |
764 | { |
1365 | { |
765 | case 20: |
1366 | case SIMPLE_FALSE: |
766 | #if CBOR_SLOW |
1367 | #if CBOR_SLOW |
767 | types_false = get_bool ("Types::Serialiser::false"); |
1368 | types_false = get_bool ("Types::Serialiser::false"); |
768 | #endif |
1369 | #endif |
769 | return newSVsv (types_false); |
1370 | return newSVsv (types_false); |
770 | case 21: |
1371 | case SIMPLE_TRUE: |
771 | #if CBOR_SLOW |
1372 | #if CBOR_SLOW |
772 | types_true = get_bool ("Types::Serialiser::true"); |
1373 | types_true = get_bool ("Types::Serialiser::true"); |
773 | #endif |
1374 | #endif |
774 | return newSVsv (types_true); |
1375 | return newSVsv (types_true); |
775 | case 22: |
1376 | case SIMPLE_NULL: |
776 | return newSVsv (&PL_sv_undef); |
1377 | return newSVsv (&PL_sv_undef); |
777 | case 23: |
1378 | case SIMPLE_UNDEF: |
778 | #if CBOR_SLOW |
1379 | #if CBOR_SLOW |
779 | types_error = get_bool ("Types::Serialiser::error"); |
1380 | types_error = get_bool ("Types::Serialiser::error"); |
780 | #endif |
1381 | #endif |
781 | return newSVsv (types_error); |
1382 | return newSVsv (types_error); |
782 | |
1383 | |
783 | case 25: |
1384 | case MISC_FLOAT16: |
784 | { |
1385 | { |
785 | WANT (2); |
1386 | WANT (2); |
786 | |
1387 | |
787 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1388 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
788 | dec->cur += 2; |
1389 | dec->cur += 2; |
789 | |
1390 | |
790 | return newSVnv (ecb_binary16_to_float (fp)); |
1391 | return newSVnv (ecb_binary16_to_float (fp)); |
791 | } |
1392 | } |
792 | |
1393 | |
793 | case 26: |
1394 | case MISC_FLOAT32: |
794 | { |
1395 | { |
795 | uint32_t fp; |
1396 | uint32_t fp; |
796 | WANT (4); |
1397 | WANT (4); |
797 | memcpy (&fp, dec->cur, 4); |
1398 | memcpy (&fp, dec->cur, 4); |
798 | dec->cur += 4; |
1399 | dec->cur += 4; |
… | |
… | |
801 | fp = ecb_bswap32 (fp); |
1402 | fp = ecb_bswap32 (fp); |
802 | |
1403 | |
803 | return newSVnv (ecb_binary32_to_float (fp)); |
1404 | return newSVnv (ecb_binary32_to_float (fp)); |
804 | } |
1405 | } |
805 | |
1406 | |
806 | case 27: |
1407 | case MISC_FLOAT64: |
807 | { |
1408 | { |
808 | uint64_t fp; |
1409 | uint64_t fp; |
809 | WANT (8); |
1410 | WANT (8); |
810 | memcpy (&fp, dec->cur, 8); |
1411 | memcpy (&fp, dec->cur, 8); |
811 | dec->cur += 8; |
1412 | dec->cur += 8; |
… | |
… | |
814 | fp = ecb_bswap64 (fp); |
1415 | fp = ecb_bswap64 (fp); |
815 | |
1416 | |
816 | return newSVnv (ecb_binary64_to_double (fp)); |
1417 | return newSVnv (ecb_binary64_to_double (fp)); |
817 | } |
1418 | } |
818 | |
1419 | |
819 | // 0..19 unassigned |
1420 | // 0..19 unassigned simple |
820 | // 24 reserved + unassigned (reserved values are not encodable) |
1421 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1422 | // 28-30 unassigned misc |
|
|
1423 | // 31 break code |
821 | default: |
1424 | default: |
822 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1425 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
823 | } |
1426 | } |
824 | |
1427 | |
825 | break; |
1428 | break; |
826 | } |
1429 | } |
827 | |
1430 | |
… | |
… | |
830 | } |
1433 | } |
831 | |
1434 | |
832 | static SV * |
1435 | static SV * |
833 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1436 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
834 | { |
1437 | { |
835 | dec_t dec; |
1438 | dec_t dec = { 0 }; |
836 | SV *sv; |
1439 | SV *sv; |
|
|
1440 | STRLEN len; |
|
|
1441 | char *data = SvPVbyte (string, len); |
837 | |
1442 | |
838 | /* work around bugs in 5.10 where manipulating magic values |
|
|
839 | * makes perl ignore the magic in subsequent accesses. |
|
|
840 | * also make a copy of non-PV values, to get them into a clean |
|
|
841 | * state (SvPV should do that, but it's buggy, see below). |
|
|
842 | */ |
|
|
843 | /*SvGETMAGIC (string);*/ |
|
|
844 | if (SvMAGICAL (string) || !SvPOK (string)) |
|
|
845 | string = sv_2mortal (newSVsv (string)); |
|
|
846 | |
|
|
847 | SvUPGRADE (string, SVt_PV); |
|
|
848 | |
|
|
849 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
850 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
851 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
852 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
853 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
854 | * and hope for the best. |
|
|
855 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
856 | * assertion business is seriously broken, try yet another workaround |
|
|
857 | * for the broken -DDEBUGGING. |
|
|
858 | */ |
|
|
859 | { |
|
|
860 | #ifdef DEBUGGING |
|
|
861 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
862 | #else |
|
|
863 | STRLEN offset = SvCUR (string); |
|
|
864 | #endif |
|
|
865 | |
|
|
866 | if (offset > cbor->max_size && cbor->max_size) |
1443 | if (len > cbor->max_size && cbor->max_size) |
867 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1444 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
868 | (unsigned long)SvCUR (string), (unsigned long)cbor->max_size); |
1445 | (unsigned long)len, (unsigned long)cbor->max_size); |
869 | } |
|
|
870 | |
|
|
871 | sv_utf8_downgrade (string, 0); |
|
|
872 | |
1446 | |
873 | dec.cbor = *cbor; |
1447 | dec.cbor = *cbor; |
874 | dec.cur = (U8 *)SvPVX (string); |
1448 | dec.cur = (U8 *)data; |
875 | dec.end = (U8 *)SvEND (string); |
1449 | dec.end = (U8 *)data + len; |
876 | dec.err = 0; |
|
|
877 | dec.depth = 0; |
|
|
878 | |
1450 | |
879 | sv = decode_sv (&dec); |
1451 | sv = decode_sv (&dec); |
880 | |
1452 | |
881 | if (offset_return) |
1453 | if (offset_return) |
882 | *offset_return = dec.cur; |
1454 | *offset_return = dec.cur; |
… | |
… | |
885 | if (dec.cur != dec.end && !dec.err) |
1457 | if (dec.cur != dec.end && !dec.err) |
886 | dec.err = "garbage after CBOR object"; |
1458 | dec.err = "garbage after CBOR object"; |
887 | |
1459 | |
888 | if (dec.err) |
1460 | if (dec.err) |
889 | { |
1461 | { |
|
|
1462 | if (dec.shareable) |
|
|
1463 | { |
|
|
1464 | // need to break cyclic links, which would all be in shareable |
|
|
1465 | int i; |
|
|
1466 | SV **svp; |
|
|
1467 | |
|
|
1468 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1469 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1470 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1471 | } |
|
|
1472 | |
890 | SvREFCNT_dec (sv); |
1473 | SvREFCNT_dec_NN (sv); |
|
|
1474 | |
|
|
1475 | if (dec.err_sv) |
|
|
1476 | sv_2mortal (dec.err_sv); |
|
|
1477 | |
891 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1478 | croak ("%s, at offset %ld (octet 0x%02x)", dec.err, (long)(dec.cur - (U8 *)data), (int)(uint8_t)*dec.cur); |
892 | } |
1479 | } |
893 | |
1480 | |
894 | sv = sv_2mortal (sv); |
1481 | sv = sv_2mortal (sv); |
895 | |
1482 | |
896 | return sv; |
1483 | return sv; |
897 | } |
1484 | } |
898 | |
1485 | |
|
|
1486 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1487 | // incremental parser |
|
|
1488 | |
|
|
1489 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1490 | |
|
|
1491 | // returns 0 for notyet, 1 for success or error |
|
|
1492 | static int |
|
|
1493 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1494 | { |
|
|
1495 | STRLEN cur; |
|
|
1496 | SvPV (cborstr, cur); |
|
|
1497 | |
|
|
1498 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1499 | { |
|
|
1500 | // table of integer count bytes |
|
|
1501 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1502 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1503 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1504 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1505 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1506 | }; |
|
|
1507 | |
|
|
1508 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1509 | U8 m = *p & MINOR_MASK; |
|
|
1510 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1511 | I8 ilen = incr_len[m]; |
|
|
1512 | |
|
|
1513 | self->incr_need = self->incr_pos + 1; |
|
|
1514 | |
|
|
1515 | if (ecb_expect_false (ilen < 0)) |
|
|
1516 | { |
|
|
1517 | if (m != MINOR_INDEF) |
|
|
1518 | return 1; // error |
|
|
1519 | |
|
|
1520 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1521 | { |
|
|
1522 | if (count >= 0) |
|
|
1523 | return 1; // error |
|
|
1524 | |
|
|
1525 | count = 1; |
|
|
1526 | } |
|
|
1527 | else |
|
|
1528 | { |
|
|
1529 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1530 | count = -1; |
|
|
1531 | } |
|
|
1532 | } |
|
|
1533 | else |
|
|
1534 | { |
|
|
1535 | self->incr_need += ilen; |
|
|
1536 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1537 | return 0; |
|
|
1538 | |
|
|
1539 | int major = *p >> MAJOR_SHIFT; |
|
|
1540 | |
|
|
1541 | switch (major) |
|
|
1542 | { |
|
|
1543 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1544 | ++count; // tags merely prefix another value |
|
|
1545 | break; |
|
|
1546 | |
|
|
1547 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1548 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1549 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1550 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1551 | { |
|
|
1552 | UV len; |
|
|
1553 | |
|
|
1554 | if (ecb_expect_false (ilen)) |
|
|
1555 | { |
|
|
1556 | len = 0; |
|
|
1557 | |
|
|
1558 | do { |
|
|
1559 | len = (len << 8) | *++p; |
|
|
1560 | } while (--ilen); |
|
|
1561 | } |
|
|
1562 | else |
|
|
1563 | len = m; |
|
|
1564 | |
|
|
1565 | switch (major) |
|
|
1566 | { |
|
|
1567 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1568 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1569 | self->incr_need += len; |
|
|
1570 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1571 | return 0; |
|
|
1572 | |
|
|
1573 | break; |
|
|
1574 | |
|
|
1575 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1576 | len <<= 1; |
|
|
1577 | /* FALLTHROUGH */ |
|
|
1578 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1579 | if (len) |
|
|
1580 | { |
|
|
1581 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1582 | count = len + 1; |
|
|
1583 | } |
|
|
1584 | break; |
|
|
1585 | } |
|
|
1586 | } |
|
|
1587 | } |
|
|
1588 | } |
|
|
1589 | |
|
|
1590 | self->incr_pos = self->incr_need; |
|
|
1591 | |
|
|
1592 | if (count > 0) |
|
|
1593 | { |
|
|
1594 | while (!--count) |
|
|
1595 | { |
|
|
1596 | if (!AvFILLp (self->incr_count)) |
|
|
1597 | return 1; // done |
|
|
1598 | |
|
|
1599 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1600 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1601 | } |
|
|
1602 | |
|
|
1603 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1604 | } |
|
|
1605 | } |
|
|
1606 | |
|
|
1607 | return 0; |
|
|
1608 | } |
|
|
1609 | |
|
|
1610 | |
899 | ///////////////////////////////////////////////////////////////////////////// |
1611 | ///////////////////////////////////////////////////////////////////////////// |
900 | // XS interface functions |
1612 | // XS interface functions |
901 | |
1613 | |
902 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1614 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
903 | |
1615 | |
… | |
… | |
911 | |
1623 | |
912 | types_true = get_bool ("Types::Serialiser::true" ); |
1624 | types_true = get_bool ("Types::Serialiser::true" ); |
913 | types_false = get_bool ("Types::Serialiser::false"); |
1625 | types_false = get_bool ("Types::Serialiser::false"); |
914 | types_error = get_bool ("Types::Serialiser::error"); |
1626 | types_error = get_bool ("Types::Serialiser::error"); |
915 | |
1627 | |
|
|
1628 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
|
|
1629 | |
916 | sv_cbor = newSVpv ("CBOR", 0); |
1630 | sv_cbor = newSVpv ("CBOR", 0); |
917 | SvREADONLY_on (sv_cbor); |
1631 | SvREADONLY_on (sv_cbor); |
|
|
1632 | |
|
|
1633 | assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1)); |
918 | } |
1634 | } |
919 | |
1635 | |
920 | PROTOTYPES: DISABLE |
1636 | PROTOTYPES: DISABLE |
921 | |
1637 | |
922 | void CLONE (...) |
1638 | void CLONE (...) |
… | |
… | |
940 | |
1656 | |
941 | void shrink (CBOR *self, int enable = 1) |
1657 | void shrink (CBOR *self, int enable = 1) |
942 | ALIAS: |
1658 | ALIAS: |
943 | shrink = F_SHRINK |
1659 | shrink = F_SHRINK |
944 | allow_unknown = F_ALLOW_UNKNOWN |
1660 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1661 | allow_sharing = F_ALLOW_SHARING |
|
|
1662 | allow_cycles = F_ALLOW_CYCLES |
|
|
1663 | forbid_objects = F_FORBID_OBJECTS |
|
|
1664 | pack_strings = F_PACK_STRINGS |
|
|
1665 | text_keys = F_TEXT_KEYS |
|
|
1666 | text_strings = F_TEXT_STRINGS |
|
|
1667 | validate_utf8 = F_VALIDATE_UTF8 |
945 | PPCODE: |
1668 | PPCODE: |
946 | { |
1669 | { |
947 | if (enable) |
1670 | if (enable) |
948 | self->flags |= ix; |
1671 | self->flags |= ix; |
949 | else |
1672 | else |
… | |
… | |
954 | |
1677 | |
955 | void get_shrink (CBOR *self) |
1678 | void get_shrink (CBOR *self) |
956 | ALIAS: |
1679 | ALIAS: |
957 | get_shrink = F_SHRINK |
1680 | get_shrink = F_SHRINK |
958 | get_allow_unknown = F_ALLOW_UNKNOWN |
1681 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1682 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1683 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1684 | get_forbid_objects = F_FORBID_OBJECTS |
|
|
1685 | get_pack_strings = F_PACK_STRINGS |
|
|
1686 | get_text_keys = F_TEXT_KEYS |
|
|
1687 | get_text_strings = F_TEXT_STRINGS |
|
|
1688 | get_validate_utf8 = F_VALIDATE_UTF8 |
959 | PPCODE: |
1689 | PPCODE: |
960 | XPUSHs (boolSV (self->flags & ix)); |
1690 | XPUSHs (boolSV (self->flags & ix)); |
961 | |
1691 | |
962 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1692 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
963 | PPCODE: |
1693 | PPCODE: |
… | |
… | |
979 | CODE: |
1709 | CODE: |
980 | RETVAL = self->max_size; |
1710 | RETVAL = self->max_size; |
981 | OUTPUT: |
1711 | OUTPUT: |
982 | RETVAL |
1712 | RETVAL |
983 | |
1713 | |
984 | #if 0 //TODO |
1714 | void filter (CBOR *self, SV *filter = 0) |
985 | |
|
|
986 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
987 | PPCODE: |
1715 | PPCODE: |
988 | { |
|
|
989 | SvREFCNT_dec (self->cb_object); |
1716 | SvREFCNT_dec (self->filter); |
990 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1717 | self->filter = filter ? newSVsv (filter) : filter; |
991 | |
|
|
992 | XPUSHs (ST (0)); |
1718 | XPUSHs (ST (0)); |
993 | } |
|
|
994 | |
1719 | |
995 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
1720 | SV *get_filter (CBOR *self) |
996 | PPCODE: |
1721 | CODE: |
997 | { |
1722 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
998 | if (!self->cb_sk_object) |
1723 | OUTPUT: |
999 | self->cb_sk_object = newHV (); |
1724 | RETVAL |
1000 | |
|
|
1001 | if (SvOK (cb)) |
|
|
1002 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1003 | else |
|
|
1004 | { |
|
|
1005 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1006 | |
|
|
1007 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1008 | { |
|
|
1009 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1010 | self->cb_sk_object = 0; |
|
|
1011 | } |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | XPUSHs (ST (0)); |
|
|
1015 | } |
|
|
1016 | |
|
|
1017 | #endif |
|
|
1018 | |
1725 | |
1019 | void encode (CBOR *self, SV *scalar) |
1726 | void encode (CBOR *self, SV *scalar) |
1020 | PPCODE: |
1727 | PPCODE: |
1021 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1728 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1022 | XPUSHs (scalar); |
1729 | XPUSHs (scalar); |
… | |
… | |
1035 | EXTEND (SP, 2); |
1742 | EXTEND (SP, 2); |
1036 | PUSHs (sv); |
1743 | PUSHs (sv); |
1037 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1744 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1038 | } |
1745 | } |
1039 | |
1746 | |
1040 | #if 0 |
1747 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1748 | ALIAS: |
|
|
1749 | incr_parse_multiple = 1 |
|
|
1750 | PPCODE: |
|
|
1751 | { |
|
|
1752 | if (SvUTF8 (cborstr)) |
|
|
1753 | sv_utf8_downgrade (cborstr, 0); |
|
|
1754 | |
|
|
1755 | if (!self->incr_count) |
|
|
1756 | { |
|
|
1757 | self->incr_count = newAV (); |
|
|
1758 | self->incr_pos = 0; |
|
|
1759 | self->incr_need = 1; |
|
|
1760 | |
|
|
1761 | av_push (self->incr_count, newSViv (1)); |
|
|
1762 | } |
|
|
1763 | |
|
|
1764 | do |
|
|
1765 | { |
|
|
1766 | if (!incr_parse (self, cborstr)) |
|
|
1767 | { |
|
|
1768 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1769 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1770 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1771 | |
|
|
1772 | break; |
|
|
1773 | } |
|
|
1774 | |
|
|
1775 | SV *sv; |
|
|
1776 | char *offset; |
|
|
1777 | |
|
|
1778 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1779 | XPUSHs (sv); |
|
|
1780 | |
|
|
1781 | sv_chop (cborstr, offset); |
|
|
1782 | |
|
|
1783 | av_clear (self->incr_count); |
|
|
1784 | av_push (self->incr_count, newSViv (1)); |
|
|
1785 | |
|
|
1786 | self->incr_pos = 0; |
|
|
1787 | self->incr_need = self->incr_pos + 1; |
|
|
1788 | } |
|
|
1789 | while (ix); |
|
|
1790 | } |
|
|
1791 | |
|
|
1792 | void incr_reset (CBOR *self) |
|
|
1793 | CODE: |
|
|
1794 | { |
|
|
1795 | SvREFCNT_dec (self->incr_count); |
|
|
1796 | self->incr_count = 0; |
|
|
1797 | } |
1041 | |
1798 | |
1042 | void DESTROY (CBOR *self) |
1799 | void DESTROY (CBOR *self) |
1043 | CODE: |
1800 | PPCODE: |
1044 | SvREFCNT_dec (self->cb_sk_object); |
1801 | cbor_free (self); |
1045 | SvREFCNT_dec (self->cb_object); |
|
|
1046 | |
|
|
1047 | #endif |
|
|
1048 | |
1802 | |
1049 | PROTOTYPES: ENABLE |
1803 | PROTOTYPES: ENABLE |
1050 | |
1804 | |
1051 | void encode_cbor (SV *scalar) |
1805 | void encode_cbor (SV *scalar) |
|
|
1806 | ALIAS: |
|
|
1807 | encode_cbor = 0 |
|
|
1808 | encode_cbor_sharing = F_ALLOW_SHARING |
1052 | PPCODE: |
1809 | PPCODE: |
1053 | { |
1810 | { |
1054 | CBOR cbor; |
1811 | CBOR cbor; |
1055 | cbor_init (&cbor); |
1812 | cbor_init (&cbor); |
|
|
1813 | cbor.flags |= ix; |
1056 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1814 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1057 | XPUSHs (scalar); |
1815 | XPUSHs (scalar); |
1058 | } |
1816 | } |
1059 | |
1817 | |
1060 | void decode_cbor (SV *cborstr) |
1818 | void decode_cbor (SV *cborstr) |
… | |
… | |
1064 | cbor_init (&cbor); |
1822 | cbor_init (&cbor); |
1065 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1823 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1066 | XPUSHs (cborstr); |
1824 | XPUSHs (cborstr); |
1067 | } |
1825 | } |
1068 | |
1826 | |
|
|
1827 | #ifdef __AFL_COMPILER |
|
|
1828 | |
|
|
1829 | void |
|
|
1830 | afl_init () |
|
|
1831 | CODE: |
|
|
1832 | __AFL_INIT (); |
|
|
1833 | |
|
|
1834 | int |
|
|
1835 | afl_loop (unsigned int count = 10000) |
|
|
1836 | CODE: |
|
|
1837 | RETVAL = __AFL_LOOP (count); |
|
|
1838 | OUTPUT: |
|
|
1839 | RETVAL |
|
|
1840 | |
|
|
1841 | #endif |
|
|
1842 | |