… | |
… | |
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 | #ifndef SvREFCNT_dec_NN |
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25 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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26 | #endif |
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27 | |
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28 | // known tags |
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29 | enum cbor_tag |
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30 | { |
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31 | // inofficial extensions (pending iana registration) |
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32 | CBOR_TAG_PERL_OBJECT = 24, // http://cbor.schmorp.de/perl-object |
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33 | CBOR_TAG_GENERIC_OBJECT = 25, // http://cbor.schmorp.de/generic-object |
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34 | CBOR_TAG_VALUE_SHAREABLE = 26, // http://cbor.schmorp.de/value-sharing |
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35 | CBOR_TAG_VALUE_SHAREDREF = 27, // http://cbor.schmorp.de/value-sharing |
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36 | CBOR_TAG_STRINGREF_NAMESPACE = 65537, // http://cbor.schmorp.de/stringref |
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37 | CBOR_TAG_STRINGREF = 28, // http://cbor.schmorp.de/stringref |
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38 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
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39 | |
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40 | // rfc7049 |
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41 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
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42 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
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43 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
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44 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
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45 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
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46 | CBOR_TAG_BIGFLOAT = 5, // array |
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47 | |
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48 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
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49 | CBOR_TAG_CONV_B64 = 22, // base64, any |
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50 | CBOR_TAG_CONV_HEX = 23, // base16, any |
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51 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
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52 | |
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53 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
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54 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
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55 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
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56 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
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57 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
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58 | |
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59 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
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60 | }; |
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61 | |
14 | #define F_SHRINK 0x00000200UL |
62 | #define F_SHRINK 0x00000001UL |
15 | #define F_ALLOW_UNKNOWN 0x00002000UL |
63 | #define F_ALLOW_UNKNOWN 0x00000002UL |
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64 | #define F_ALLOW_SHARING 0x00000004UL //TODO |
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65 | #define F_ALLOW_STRINGREF 0x00000008UL //TODO |
16 | |
66 | |
17 | #define INIT_SIZE 32 // initial scalar size to be allocated |
67 | #define INIT_SIZE 32 // initial scalar size to be allocated |
18 | |
68 | |
19 | #define SB do { |
69 | #define SB do { |
20 | #define SE } while (0) |
70 | #define SE } while (0) |
… | |
… | |
31 | #else |
81 | #else |
32 | # define CBOR_SLOW 0 |
82 | # define CBOR_SLOW 0 |
33 | # define CBOR_STASH cbor_stash |
83 | # define CBOR_STASH cbor_stash |
34 | #endif |
84 | #endif |
35 | |
85 | |
36 | static HV *cbor_stash, *cbor_boolean_stash; // CBOR::XS:: |
86 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
37 | static SV *cbor_true, *cbor_false; |
87 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
38 | |
88 | |
39 | typedef struct { |
89 | typedef struct { |
40 | U32 flags; |
90 | U32 flags; |
41 | U32 max_depth; |
91 | U32 max_depth; |
42 | STRLEN max_size; |
92 | STRLEN max_size; |
43 | |
93 | SV *filter; |
44 | SV *cb_object; |
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45 | HV *cb_sk_object; |
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46 | } CBOR; |
94 | } CBOR; |
47 | |
95 | |
48 | ecb_inline void |
96 | ecb_inline void |
49 | cbor_init (CBOR *cbor) |
97 | cbor_init (CBOR *cbor) |
50 | { |
98 | { |
51 | Zero (cbor, 1, CBOR); |
99 | Zero (cbor, 1, CBOR); |
52 | cbor->max_depth = 512; |
100 | cbor->max_depth = 512; |
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101 | } |
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102 | |
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103 | ecb_inline void |
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104 | cbor_free (CBOR *cbor) |
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105 | { |
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106 | SvREFCNT_dec (cbor->filter); |
53 | } |
107 | } |
54 | |
108 | |
55 | ///////////////////////////////////////////////////////////////////////////// |
109 | ///////////////////////////////////////////////////////////////////////////// |
56 | // utility functions |
110 | // utility functions |
57 | |
111 | |
… | |
… | |
79 | SvPV_renew (sv, SvCUR (sv) + 1); |
133 | SvPV_renew (sv, SvCUR (sv) + 1); |
80 | #endif |
134 | #endif |
81 | } |
135 | } |
82 | } |
136 | } |
83 | |
137 | |
84 | ///////////////////////////////////////////////////////////////////////////// |
138 | // minimum length of a string to be registered for stringref |
85 | // fp hell |
139 | ecb_inline int |
86 | |
140 | minimum_string_length (UV idx) |
87 | //TODO |
141 | { |
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142 | return idx > 23 |
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143 | ? idx > 0xffU |
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144 | ? idx > 0xffffU |
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145 | ? idx > 0xffffffffU |
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146 | ? 7 |
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147 | : 6 |
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148 | : 5 |
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149 | : 4 |
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150 | : 3; |
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151 | } |
88 | |
152 | |
89 | ///////////////////////////////////////////////////////////////////////////// |
153 | ///////////////////////////////////////////////////////////////////////////// |
90 | // encoder |
154 | // encoder |
91 | |
155 | |
92 | // structure used for encoding CBOR |
156 | // structure used for encoding CBOR |
… | |
… | |
95 | char *cur; // SvPVX (sv) + current output position |
159 | char *cur; // SvPVX (sv) + current output position |
96 | char *end; // SvEND (sv) |
160 | char *end; // SvEND (sv) |
97 | SV *sv; // result scalar |
161 | SV *sv; // result scalar |
98 | CBOR cbor; |
162 | CBOR cbor; |
99 | U32 depth; // recursion level |
163 | U32 depth; // recursion level |
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164 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
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165 | UV stringref_idx; |
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166 | HV *shareable; // ptr => index, or 0 |
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167 | UV shareable_idx; |
100 | } enc_t; |
168 | } enc_t; |
101 | |
169 | |
102 | ecb_inline void |
170 | ecb_inline void |
103 | need (enc_t *enc, STRLEN len) |
171 | need (enc_t *enc, STRLEN len) |
104 | { |
172 | { |
… | |
… | |
156 | *enc->cur++ = len >> 8; |
224 | *enc->cur++ = len >> 8; |
157 | *enc->cur++ = len; |
225 | *enc->cur++ = len; |
158 | } |
226 | } |
159 | } |
227 | } |
160 | |
228 | |
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229 | ecb_inline void |
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230 | encode_tag (enc_t *enc, UV tag) |
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231 | { |
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232 | encode_uint (enc, 0xc0, tag); |
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233 | } |
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234 | |
161 | static void |
235 | static void |
162 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
236 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
163 | { |
237 | { |
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238 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_STRINGREF)) |
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239 | { |
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240 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
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241 | |
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242 | if (SvOK (*svp)) |
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243 | { |
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244 | // already registered, use stringref |
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245 | encode_tag (enc, CBOR_TAG_STRINGREF); |
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246 | encode_uint (enc, 0x00, SvUV (*svp)); |
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247 | return; |
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248 | } |
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249 | else if (len >= minimum_string_length (enc->stringref_idx)) |
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250 | { |
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251 | // register only |
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252 | sv_setuv (*svp, enc->stringref_idx); |
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253 | ++enc->stringref_idx; |
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254 | } |
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255 | } |
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256 | |
164 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
257 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
165 | need (enc, len); |
258 | need (enc, len); |
166 | memcpy (enc->cur, str, len); |
259 | memcpy (enc->cur, str, len); |
167 | enc->cur += len; |
260 | enc->cur += len; |
168 | } |
261 | } |
… | |
… | |
226 | |
319 | |
227 | // encode objects, arrays and special \0=false and \1=true values. |
320 | // encode objects, arrays and special \0=false and \1=true values. |
228 | static void |
321 | static void |
229 | encode_rv (enc_t *enc, SV *sv) |
322 | encode_rv (enc_t *enc, SV *sv) |
230 | { |
323 | { |
231 | svtype svt; |
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232 | |
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233 | SvGETMAGIC (sv); |
324 | SvGETMAGIC (sv); |
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325 | |
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326 | if (ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING) |
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327 | && ecb_expect_false (SvREFCNT (sv) > 1)) |
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328 | { |
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329 | if (!enc->shareable) |
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330 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
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331 | |
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332 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
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333 | |
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334 | if (SvOK (*svp)) |
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335 | { |
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336 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
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337 | encode_uint (enc, 0x00, SvUV (*svp)); |
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338 | return; |
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339 | } |
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340 | else |
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341 | { |
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342 | sv_setuv (*svp, enc->shareable_idx); |
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343 | ++enc->shareable_idx; |
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344 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
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345 | } |
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346 | } |
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347 | |
234 | svt = SvTYPE (sv); |
348 | svtype svt = SvTYPE (sv); |
235 | |
349 | |
236 | if (ecb_expect_false (SvOBJECT (sv))) |
350 | if (ecb_expect_false (SvOBJECT (sv))) |
237 | { |
351 | { |
238 | HV *stash = !CBOR_SLOW || cbor_boolean_stash |
352 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
239 | ? cbor_boolean_stash |
353 | ? types_boolean_stash |
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354 | : gv_stashpv ("Types::Serialiser::Boolean", 1); |
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355 | HV *error_stash = !CBOR_SLOW || types_error_stash |
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356 | ? types_error_stash |
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357 | : gv_stashpv ("Types::Serialiser::Error", 1); |
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358 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
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359 | ? cbor_tagged_stash |
240 | : gv_stashpv ("CBOR::XS::Boolean", 1); |
360 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
241 | |
361 | |
242 | if (SvSTASH (sv) == stash) |
362 | HV *stash = SvSTASH (sv); |
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363 | GV *method; |
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364 | |
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365 | if (stash == boolean_stash) |
243 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
366 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
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367 | else if (stash == error_stash) |
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368 | encode_ch (enc, 0xe0 | 23); |
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369 | else if (stash == tagged_stash) |
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370 | { |
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371 | if (svt != SVt_PVAV) |
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372 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
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373 | |
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374 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
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375 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
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376 | } |
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377 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
|
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378 | { |
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379 | dSP; |
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380 | |
|
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381 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
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382 | // we re-bless the reference to get overload and other niceties right |
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383 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
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384 | |
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385 | PUTBACK; |
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386 | // G_SCALAR ensures that return value is 1 |
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387 | call_sv ((SV *)GvCV (method), G_SCALAR); |
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388 | SPAGAIN; |
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389 | |
|
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390 | // catch this surprisingly common error |
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391 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
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392 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
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393 | |
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394 | encode_sv (enc, POPs); |
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395 | |
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396 | PUTBACK; |
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397 | |
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398 | FREETMPS; LEAVE; |
|
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399 | } |
|
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400 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
|
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401 | { |
|
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402 | dSP; |
|
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403 | |
|
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404 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
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405 | EXTEND (SP, 2); |
|
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406 | // we re-bless the reference to get overload and other niceties right |
|
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407 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
|
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408 | PUSHs (sv_cbor); |
|
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409 | |
|
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410 | PUTBACK; |
|
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411 | int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
|
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412 | SPAGAIN; |
|
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413 | |
|
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414 | // catch this surprisingly common error |
|
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415 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
|
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416 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
|
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417 | |
|
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418 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
|
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419 | encode_uint (enc, 0x80, count + 1); |
|
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420 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
|
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421 | |
|
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422 | while (count) |
|
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423 | encode_sv (enc, SP[1 - count--]); |
|
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424 | |
|
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425 | PUTBACK; |
|
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426 | |
|
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427 | FREETMPS; LEAVE; |
|
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428 | } |
244 | else |
429 | else |
245 | { |
|
|
246 | #if 0 //TODO |
|
|
247 | if (enc->cbor.flags & F_CONV_BLESSED) |
|
|
248 | { |
|
|
249 | // we re-bless the reference to get overload and other niceties right |
|
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250 | GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0); |
|
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251 | |
|
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252 | if (to_cbor) |
|
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253 | { |
|
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254 | dSP; |
|
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255 | |
|
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256 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
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257 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
|
|
258 | |
|
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259 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
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260 | PUTBACK; |
|
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261 | call_sv ((SV *)GvCV (to_cbor), G_SCALAR); |
|
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262 | SPAGAIN; |
|
|
263 | |
|
|
264 | // catch this surprisingly common error |
|
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265 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
|
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266 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
|
|
267 | |
|
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268 | sv = POPs; |
|
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269 | PUTBACK; |
|
|
270 | |
|
|
271 | encode_sv (enc, sv); |
|
|
272 | |
|
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273 | FREETMPS; LEAVE; |
|
|
274 | } |
|
|
275 | else if (enc->cbor.flags & F_ALLOW_BLESSED) |
|
|
276 | encode_str (enc, "null", 4, 0); |
|
|
277 | else |
|
|
278 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_CBOR method available on it", |
430 | croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
279 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
280 | } |
|
|
281 | else if (enc->cbor.flags & F_ALLOW_BLESSED) |
|
|
282 | encode_str (enc, "null", 4, 0); |
|
|
283 | else |
|
|
284 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
|
|
285 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
431 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
286 | #endif |
|
|
287 | } |
|
|
288 | } |
432 | } |
289 | else if (svt == SVt_PVHV) |
433 | else if (svt == SVt_PVHV) |
290 | encode_hv (enc, (HV *)sv); |
434 | encode_hv (enc, (HV *)sv); |
291 | else if (svt == SVt_PVAV) |
435 | else if (svt == SVt_PVAV) |
292 | encode_av (enc, (AV *)sv); |
436 | encode_av (enc, (AV *)sv); |
293 | else if (svt < SVt_PVAV) |
|
|
294 | { |
|
|
295 | STRLEN len = 0; |
|
|
296 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
297 | |
|
|
298 | if (len == 1 && *pv == '1') |
|
|
299 | encode_ch (enc, 0xe0 | 21); |
|
|
300 | else if (len == 1 && *pv == '0') |
|
|
301 | encode_ch (enc, 0xe0 | 20); |
|
|
302 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
303 | encode_ch (enc, 0xe0 | 23); |
|
|
304 | else |
|
|
305 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
306 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
307 | } |
|
|
308 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
309 | encode_ch (enc, 0xe0 | 23); |
|
|
310 | else |
437 | else |
311 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
438 | { |
312 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
439 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
440 | encode_sv (enc, sv); |
|
|
441 | } |
313 | } |
442 | } |
314 | |
443 | |
315 | static void |
444 | static void |
316 | encode_nv (enc_t *enc, SV *sv) |
445 | encode_nv (enc_t *enc, SV *sv) |
317 | { |
446 | { |
… | |
… | |
382 | } |
511 | } |
383 | |
512 | |
384 | static SV * |
513 | static SV * |
385 | encode_cbor (SV *scalar, CBOR *cbor) |
514 | encode_cbor (SV *scalar, CBOR *cbor) |
386 | { |
515 | { |
387 | enc_t enc; |
516 | enc_t enc = { }; |
388 | |
517 | |
389 | enc.cbor = *cbor; |
518 | enc.cbor = *cbor; |
390 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
519 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
391 | enc.cur = SvPVX (enc.sv); |
520 | enc.cur = SvPVX (enc.sv); |
392 | enc.end = SvEND (enc.sv); |
521 | enc.end = SvEND (enc.sv); |
393 | enc.depth = 0; |
|
|
394 | |
522 | |
395 | SvPOK_only (enc.sv); |
523 | SvPOK_only (enc.sv); |
|
|
524 | |
|
|
525 | if (cbor->flags & F_ALLOW_STRINGREF) |
|
|
526 | { |
|
|
527 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
528 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
529 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
530 | } |
|
|
531 | |
396 | encode_sv (&enc, scalar); |
532 | encode_sv (&enc, scalar); |
397 | |
533 | |
398 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
534 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
399 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
535 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
400 | |
536 | |
… | |
… | |
414 | U8 *end; // end of input string |
550 | U8 *end; // end of input string |
415 | const char *err; // parse error, if != 0 |
551 | const char *err; // parse error, if != 0 |
416 | CBOR cbor; |
552 | CBOR cbor; |
417 | U32 depth; // recursion depth |
553 | U32 depth; // recursion depth |
418 | U32 maxdepth; // recursion depth limit |
554 | U32 maxdepth; // recursion depth limit |
|
|
555 | AV *shareable; |
|
|
556 | AV *stringref; |
|
|
557 | SV *decode_tagged; |
419 | } dec_t; |
558 | } dec_t; |
420 | |
559 | |
421 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
560 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
422 | |
561 | |
423 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
562 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
… | |
… | |
517 | SvREFCNT_dec (av); |
656 | SvREFCNT_dec (av); |
518 | DEC_DEC_DEPTH; |
657 | DEC_DEC_DEPTH; |
519 | return &PL_sv_undef; |
658 | return &PL_sv_undef; |
520 | } |
659 | } |
521 | |
660 | |
|
|
661 | static void |
|
|
662 | decode_he (dec_t *dec, HV *hv) |
|
|
663 | { |
|
|
664 | // for speed reasons, we specialcase single-string |
|
|
665 | // byte or utf-8 strings as keys, but only when !stringref |
|
|
666 | |
|
|
667 | if (ecb_expect_true (!dec->stringref)) |
|
|
668 | if (*dec->cur >= 0x40 && *dec->cur <= 0x40 + 27) |
|
|
669 | { |
|
|
670 | I32 len = decode_uint (dec); |
|
|
671 | char *key = (char *)dec->cur; |
|
|
672 | |
|
|
673 | dec->cur += len; |
|
|
674 | |
|
|
675 | if (ecb_expect_false (dec->stringref)) |
|
|
676 | av_push (dec->stringref, newSVpvn (key, len)); |
|
|
677 | |
|
|
678 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
679 | |
|
|
680 | return; |
|
|
681 | } |
|
|
682 | else if (*dec->cur >= 0x60 && *dec->cur <= 0x60 + 27) |
|
|
683 | { |
|
|
684 | I32 len = decode_uint (dec); |
|
|
685 | char *key = (char *)dec->cur; |
|
|
686 | |
|
|
687 | dec->cur += len; |
|
|
688 | |
|
|
689 | if (ecb_expect_false (dec->stringref)) |
|
|
690 | av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
|
|
691 | |
|
|
692 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
693 | |
|
|
694 | return; |
|
|
695 | } |
|
|
696 | |
|
|
697 | SV *k = decode_sv (dec); |
|
|
698 | SV *v = decode_sv (dec); |
|
|
699 | |
|
|
700 | hv_store_ent (hv, k, v, 0); |
|
|
701 | SvREFCNT_dec (k); |
|
|
702 | } |
|
|
703 | |
522 | static SV * |
704 | static SV * |
523 | decode_hv (dec_t *dec) |
705 | decode_hv (dec_t *dec) |
524 | { |
706 | { |
525 | HV *hv = newHV (); |
707 | HV *hv = newHV (); |
526 | |
708 | |
… | |
… | |
538 | { |
720 | { |
539 | ++dec->cur; |
721 | ++dec->cur; |
540 | break; |
722 | break; |
541 | } |
723 | } |
542 | |
724 | |
543 | SV *k = decode_sv (dec); |
725 | decode_he (dec, hv); |
544 | SV *v = decode_sv (dec); |
|
|
545 | |
|
|
546 | hv_store_ent (hv, k, v, 0); |
|
|
547 | } |
726 | } |
548 | } |
727 | } |
549 | else |
728 | else |
550 | { |
729 | { |
551 | int len = decode_uint (dec); |
730 | int pairs = decode_uint (dec); |
552 | |
731 | |
553 | while (len--) |
732 | while (pairs--) |
554 | { |
733 | decode_he (dec, hv); |
555 | SV *k = decode_sv (dec); |
|
|
556 | SV *v = decode_sv (dec); |
|
|
557 | |
|
|
558 | hv_store_ent (hv, k, v, 0); |
|
|
559 | } |
|
|
560 | } |
734 | } |
561 | |
735 | |
562 | DEC_DEC_DEPTH; |
736 | DEC_DEC_DEPTH; |
563 | return newRV_noinc ((SV *)hv); |
737 | return newRV_noinc ((SV *)hv); |
564 | |
|
|
565 | #if 0 |
|
|
566 | SV *sv; |
|
|
567 | HV *hv = newHV (); |
|
|
568 | |
|
|
569 | DEC_INC_DEPTH; |
|
|
570 | decode_ws (dec); |
|
|
571 | |
|
|
572 | for (;;) |
|
|
573 | { |
|
|
574 | // heuristic: assume that |
|
|
575 | // a) decode_str + hv_store_ent are abysmally slow. |
|
|
576 | // b) most hash keys are short, simple ascii text. |
|
|
577 | // => try to "fast-match" such strings to avoid |
|
|
578 | // the overhead of decode_str + hv_store_ent. |
|
|
579 | { |
|
|
580 | SV *value; |
|
|
581 | char *p = dec->cur; |
|
|
582 | char *e = p + 24; // only try up to 24 bytes |
|
|
583 | |
|
|
584 | for (;;) |
|
|
585 | { |
|
|
586 | // the >= 0x80 is false on most architectures |
|
|
587 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
|
|
588 | { |
|
|
589 | // slow path, back up and use decode_str |
|
|
590 | SV *key = decode_str (dec); |
|
|
591 | if (!key) |
|
|
592 | goto fail; |
|
|
593 | |
|
|
594 | decode_ws (dec); EXPECT_CH (':'); |
|
|
595 | |
|
|
596 | decode_ws (dec); |
|
|
597 | value = decode_sv (dec); |
|
|
598 | if (!value) |
|
|
599 | { |
|
|
600 | SvREFCNT_dec (key); |
|
|
601 | goto fail; |
|
|
602 | } |
|
|
603 | |
|
|
604 | hv_store_ent (hv, key, value, 0); |
|
|
605 | SvREFCNT_dec (key); |
|
|
606 | |
|
|
607 | break; |
|
|
608 | } |
|
|
609 | else if (*p == '"') |
|
|
610 | { |
|
|
611 | // fast path, got a simple key |
|
|
612 | char *key = dec->cur; |
|
|
613 | int len = p - key; |
|
|
614 | dec->cur = p + 1; |
|
|
615 | |
|
|
616 | decode_ws (dec); EXPECT_CH (':'); |
|
|
617 | |
|
|
618 | decode_ws (dec); |
|
|
619 | value = decode_sv (dec); |
|
|
620 | if (!value) |
|
|
621 | goto fail; |
|
|
622 | |
|
|
623 | hv_store (hv, key, len, value, 0); |
|
|
624 | |
|
|
625 | break; |
|
|
626 | } |
|
|
627 | |
|
|
628 | ++p; |
|
|
629 | } |
|
|
630 | } |
|
|
631 | |
|
|
632 | decode_ws (dec); |
|
|
633 | |
|
|
634 | if (*dec->cur == '}') |
|
|
635 | { |
|
|
636 | ++dec->cur; |
|
|
637 | break; |
|
|
638 | } |
|
|
639 | |
|
|
640 | if (*dec->cur != ',') |
|
|
641 | ERR (", or } expected while parsing object/hash"); |
|
|
642 | |
|
|
643 | ++dec->cur; |
|
|
644 | |
|
|
645 | decode_ws (dec); |
|
|
646 | |
|
|
647 | if (*dec->cur == '}' && dec->cbor.flags & F_RELAXED) |
|
|
648 | { |
|
|
649 | ++dec->cur; |
|
|
650 | break; |
|
|
651 | } |
|
|
652 | } |
|
|
653 | |
|
|
654 | DEC_DEC_DEPTH; |
|
|
655 | sv = newRV_noinc ((SV *)hv); |
|
|
656 | |
|
|
657 | // check filter callbacks |
|
|
658 | if (dec->cbor.flags & F_HOOK) |
|
|
659 | { |
|
|
660 | if (dec->cbor.cb_sk_object && HvKEYS (hv) == 1) |
|
|
661 | { |
|
|
662 | HE *cb, *he; |
|
|
663 | |
|
|
664 | hv_iterinit (hv); |
|
|
665 | he = hv_iternext (hv); |
|
|
666 | hv_iterinit (hv); |
|
|
667 | |
|
|
668 | // the next line creates a mortal sv each time its called. |
|
|
669 | // might want to optimise this for common cases. |
|
|
670 | cb = hv_fetch_ent (dec->cbor.cb_sk_object, hv_iterkeysv (he), 0, 0); |
|
|
671 | |
|
|
672 | if (cb) |
|
|
673 | { |
|
|
674 | dSP; |
|
|
675 | int count; |
|
|
676 | |
|
|
677 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
678 | XPUSHs (HeVAL (he)); |
|
|
679 | sv_2mortal (sv); |
|
|
680 | |
|
|
681 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
|
|
682 | |
|
|
683 | if (count == 1) |
|
|
684 | { |
|
|
685 | sv = newSVsv (POPs); |
|
|
686 | FREETMPS; LEAVE; |
|
|
687 | return sv; |
|
|
688 | } |
|
|
689 | |
|
|
690 | SvREFCNT_inc (sv); |
|
|
691 | FREETMPS; LEAVE; |
|
|
692 | } |
|
|
693 | } |
|
|
694 | |
|
|
695 | if (dec->cbor.cb_object) |
|
|
696 | { |
|
|
697 | dSP; |
|
|
698 | int count; |
|
|
699 | |
|
|
700 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
701 | XPUSHs (sv_2mortal (sv)); |
|
|
702 | |
|
|
703 | PUTBACK; count = call_sv (dec->cbor.cb_object, G_ARRAY); SPAGAIN; |
|
|
704 | |
|
|
705 | if (count == 1) |
|
|
706 | { |
|
|
707 | sv = newSVsv (POPs); |
|
|
708 | FREETMPS; LEAVE; |
|
|
709 | return sv; |
|
|
710 | } |
|
|
711 | |
|
|
712 | SvREFCNT_inc (sv); |
|
|
713 | FREETMPS; LEAVE; |
|
|
714 | } |
|
|
715 | } |
|
|
716 | |
|
|
717 | return sv; |
|
|
718 | #endif |
|
|
719 | |
738 | |
720 | fail: |
739 | fail: |
721 | SvREFCNT_dec (hv); |
740 | SvREFCNT_dec (hv); |
722 | DEC_DEC_DEPTH; |
741 | DEC_DEC_DEPTH; |
723 | return &PL_sv_undef; |
742 | return &PL_sv_undef; |
724 | } |
743 | } |
725 | |
744 | |
726 | static SV * |
745 | static SV * |
727 | decode_str (dec_t *dec, int utf8) |
746 | decode_str (dec_t *dec, int utf8) |
728 | { |
747 | { |
729 | SV *sv; |
748 | SV *sv = 0; |
730 | |
749 | |
731 | if ((*dec->cur & 31) == 31) |
750 | if ((*dec->cur & 31) == 31) |
732 | { |
751 | { |
733 | ++dec->cur; |
752 | ++dec->cur; |
734 | |
753 | |
… | |
… | |
743 | { |
762 | { |
744 | ++dec->cur; |
763 | ++dec->cur; |
745 | break; |
764 | break; |
746 | } |
765 | } |
747 | |
766 | |
748 | SV *sv2 = decode_sv (dec); |
|
|
749 | sv_catsv (sv, sv2); |
767 | sv_catsv (sv, decode_sv (dec)); |
750 | } |
768 | } |
751 | } |
769 | } |
752 | else |
770 | else |
753 | { |
771 | { |
754 | STRLEN len = decode_uint (dec); |
772 | STRLEN len = decode_uint (dec); |
755 | |
773 | |
756 | WANT (len); |
774 | WANT (len); |
757 | sv = newSVpvn (dec->cur, len); |
775 | sv = newSVpvn (dec->cur, len); |
758 | dec->cur += len; |
776 | dec->cur += len; |
|
|
777 | |
|
|
778 | if (ecb_expect_false (dec->stringref) |
|
|
779 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
780 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
759 | } |
781 | } |
760 | |
782 | |
761 | if (utf8) |
783 | if (utf8) |
762 | SvUTF8_on (sv); |
784 | SvUTF8_on (sv); |
763 | |
785 | |
764 | return sv; |
786 | return sv; |
765 | |
787 | |
766 | fail: |
788 | fail: |
|
|
789 | SvREFCNT_dec (sv); |
767 | return &PL_sv_undef; |
790 | return &PL_sv_undef; |
768 | } |
791 | } |
769 | |
792 | |
770 | static SV * |
793 | static SV * |
771 | decode_tagged (dec_t *dec) |
794 | decode_tagged (dec_t *dec) |
772 | { |
795 | { |
|
|
796 | SV *sv = 0; |
773 | UV tag = decode_uint (dec); |
797 | UV tag = decode_uint (dec); |
|
|
798 | |
|
|
799 | WANT (1); |
|
|
800 | |
|
|
801 | switch (tag) |
|
|
802 | { |
|
|
803 | case CBOR_TAG_MAGIC: |
|
|
804 | sv = decode_sv (dec); |
|
|
805 | break; |
|
|
806 | |
|
|
807 | case CBOR_TAG_INDIRECTION: |
|
|
808 | sv = newRV_noinc (decode_sv (dec)); |
|
|
809 | break; |
|
|
810 | |
|
|
811 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
812 | { |
|
|
813 | ENTER; SAVETMPS; |
|
|
814 | |
|
|
815 | SAVESPTR (dec->stringref); |
|
|
816 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
817 | |
|
|
818 | sv = decode_sv (dec); |
|
|
819 | |
|
|
820 | FREETMPS; LEAVE; |
|
|
821 | } |
|
|
822 | break; |
|
|
823 | |
|
|
824 | case CBOR_TAG_STRINGREF: |
|
|
825 | { |
|
|
826 | if ((*dec->cur >> 5) != 0) |
|
|
827 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
828 | |
|
|
829 | UV idx = decode_uint (dec); |
|
|
830 | |
|
|
831 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
|
|
832 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
833 | |
|
|
834 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
835 | } |
|
|
836 | break; |
|
|
837 | |
|
|
838 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
839 | { |
|
|
840 | if (ecb_expect_false (!dec->shareable)) |
|
|
841 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
842 | |
|
|
843 | sv = newSV (0); |
|
|
844 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
845 | |
774 | SV *sv = decode_sv (dec); |
846 | SV *osv = decode_sv (dec); |
|
|
847 | sv_setsv (sv, osv); |
|
|
848 | SvREFCNT_dec_NN (osv); |
|
|
849 | } |
|
|
850 | break; |
775 | |
851 | |
776 | if (tag == 55799) // 2.4.5 Self-Describe CBOR |
852 | case CBOR_TAG_VALUE_SHAREDREF: |
|
|
853 | { |
|
|
854 | if ((*dec->cur >> 5) != 0) |
|
|
855 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
856 | |
|
|
857 | UV idx = decode_uint (dec); |
|
|
858 | |
|
|
859 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
|
|
860 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
861 | |
|
|
862 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
863 | } |
|
|
864 | break; |
|
|
865 | |
|
|
866 | case CBOR_TAG_PERL_OBJECT: |
|
|
867 | { |
|
|
868 | sv = decode_sv (dec); |
|
|
869 | |
|
|
870 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
|
|
871 | ERR ("corrupted CBOR data (non-array perl object)"); |
|
|
872 | |
|
|
873 | AV *av = (AV *)SvRV (sv); |
|
|
874 | int len = av_len (av) + 1; |
|
|
875 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
|
|
876 | |
|
|
877 | if (!stash) |
|
|
878 | ERR ("cannot decode perl-object (package does not exist)"); |
|
|
879 | |
|
|
880 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
|
|
881 | |
|
|
882 | if (!method) |
|
|
883 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
|
|
884 | |
|
|
885 | dSP; |
|
|
886 | |
|
|
887 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
888 | EXTEND (SP, len + 1); |
|
|
889 | // we re-bless the reference to get overload and other niceties right |
|
|
890 | PUSHs (*av_fetch (av, 0, 1)); |
|
|
891 | PUSHs (sv_cbor); |
|
|
892 | |
|
|
893 | int i; |
|
|
894 | |
|
|
895 | for (i = 1; i < len; ++i) |
|
|
896 | PUSHs (*av_fetch (av, i, 1)); |
|
|
897 | |
|
|
898 | PUTBACK; |
|
|
899 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
|
|
900 | SPAGAIN; |
|
|
901 | |
|
|
902 | if (SvTRUE (ERRSV)) |
|
|
903 | { |
|
|
904 | FREETMPS; LEAVE; |
|
|
905 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
906 | } |
|
|
907 | |
|
|
908 | SvREFCNT_dec (sv); |
|
|
909 | sv = SvREFCNT_inc (POPs); |
|
|
910 | |
|
|
911 | PUTBACK; |
|
|
912 | |
|
|
913 | FREETMPS; LEAVE; |
|
|
914 | } |
|
|
915 | break; |
|
|
916 | |
|
|
917 | default: |
|
|
918 | { |
|
|
919 | sv = decode_sv (dec); |
|
|
920 | |
|
|
921 | dSP; |
|
|
922 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
923 | EXTEND (SP, 2); |
|
|
924 | PUSHs (newSVuv (tag)); |
|
|
925 | PUSHs (sv); |
|
|
926 | |
|
|
927 | PUTBACK; |
|
|
928 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
929 | SPAGAIN; |
|
|
930 | |
|
|
931 | if (SvTRUE (ERRSV)) |
|
|
932 | { |
|
|
933 | FREETMPS; LEAVE; |
|
|
934 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
935 | } |
|
|
936 | |
|
|
937 | if (count) |
|
|
938 | { |
|
|
939 | SvREFCNT_dec (sv); |
|
|
940 | sv = SvREFCNT_inc (POPs); |
|
|
941 | } |
|
|
942 | else |
|
|
943 | { |
|
|
944 | AV *av = newAV (); |
|
|
945 | av_push (av, newSVuv (tag)); |
|
|
946 | av_push (av, sv); |
|
|
947 | |
|
|
948 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
|
|
949 | ? cbor_tagged_stash |
|
|
950 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
|
|
951 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
952 | } |
|
|
953 | |
|
|
954 | PUTBACK; |
|
|
955 | |
|
|
956 | FREETMPS; LEAVE; |
|
|
957 | } |
|
|
958 | break; |
|
|
959 | } |
|
|
960 | |
777 | return sv; |
961 | return sv; |
778 | |
962 | |
779 | AV *av = newAV (); |
963 | fail: |
780 | av_push (av, newSVuv (tag)); |
964 | SvREFCNT_dec (sv); |
781 | av_push (av, sv); |
965 | return &PL_sv_undef; |
782 | return newRV_noinc ((SV *)av); |
|
|
783 | } |
966 | } |
784 | |
967 | |
785 | static SV * |
968 | static SV * |
786 | decode_sv (dec_t *dec) |
969 | decode_sv (dec_t *dec) |
787 | { |
970 | { |
788 | WANT (1); |
971 | WANT (1); |
789 | |
972 | |
790 | switch (*dec->cur >> 5) |
973 | switch (*dec->cur >> 5) |
791 | { |
974 | { |
792 | case 0: // unsigned int |
975 | case 0: // unsigned int |
793 | //TODO: 64 bit values on 3 2bit perls |
|
|
794 | return newSVuv (decode_uint (dec)); |
976 | return newSVuv (decode_uint (dec)); |
795 | case 1: // negative int |
977 | case 1: // negative int |
796 | return newSViv (-1 - (IV)decode_uint (dec)); |
978 | return newSViv (-1 - (IV)decode_uint (dec)); |
797 | case 2: // octet string |
979 | case 2: // octet string |
798 | return decode_str (dec, 0); |
980 | return decode_str (dec, 0); |
… | |
… | |
807 | case 7: // misc |
989 | case 7: // misc |
808 | switch (*dec->cur++ & 31) |
990 | switch (*dec->cur++ & 31) |
809 | { |
991 | { |
810 | case 20: |
992 | case 20: |
811 | #if CBOR_SLOW |
993 | #if CBOR_SLOW |
812 | cbor_false = get_bool ("CBOR::XS::false"); |
994 | types_false = get_bool ("Types::Serialiser::false"); |
813 | #endif |
995 | #endif |
814 | return newSVsv (cbor_false); |
996 | return newSVsv (types_false); |
815 | case 21: |
997 | case 21: |
816 | #if CBOR_SLOW |
998 | #if CBOR_SLOW |
817 | cbor_true = get_bool ("CBOR::XS::true"); |
999 | types_true = get_bool ("Types::Serialiser::true"); |
818 | #endif |
1000 | #endif |
819 | return newSVsv (cbor_true); |
1001 | return newSVsv (types_true); |
820 | case 22: |
1002 | case 22: |
821 | return newSVsv (&PL_sv_undef); |
1003 | return newSVsv (&PL_sv_undef); |
|
|
1004 | case 23: |
|
|
1005 | #if CBOR_SLOW |
|
|
1006 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1007 | #endif |
|
|
1008 | return newSVsv (types_error); |
822 | |
1009 | |
823 | case 25: |
1010 | case 25: |
824 | { |
1011 | { |
825 | WANT (2); |
1012 | WANT (2); |
826 | |
1013 | |
… | |
… | |
862 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1049 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
863 | } |
1050 | } |
864 | |
1051 | |
865 | break; |
1052 | break; |
866 | } |
1053 | } |
867 | #if 0 |
|
|
868 | switch (*dec->cur) |
|
|
869 | { |
|
|
870 | //case '"': ++dec->cur; return decode_str (dec); |
|
|
871 | case '[': ++dec->cur; return decode_av (dec); |
|
|
872 | case '{': ++dec->cur; return decode_hv (dec); |
|
|
873 | |
|
|
874 | case '-': |
|
|
875 | case '0': case '1': case '2': case '3': case '4': |
|
|
876 | case '5': case '6': case '7': case '8': case '9': |
|
|
877 | //TODO return decode_num (dec); |
|
|
878 | |
|
|
879 | case 't': |
|
|
880 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
|
|
881 | { |
|
|
882 | dec->cur += 4; |
|
|
883 | #if CBOR_SLOW |
|
|
884 | cbor_true = get_bool ("CBOR::XS::true"); |
|
|
885 | #endif |
|
|
886 | return newSVsv (cbor_true); |
|
|
887 | } |
|
|
888 | else |
|
|
889 | ERR ("'true' expected"); |
|
|
890 | |
|
|
891 | break; |
|
|
892 | |
|
|
893 | case 'f': |
|
|
894 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
|
|
895 | { |
|
|
896 | dec->cur += 5; |
|
|
897 | #if CBOR_SLOW |
|
|
898 | cbor_false = get_bool ("CBOR::XS::false"); |
|
|
899 | #endif |
|
|
900 | return newSVsv (cbor_false); |
|
|
901 | } |
|
|
902 | else |
|
|
903 | ERR ("'false' expected"); |
|
|
904 | |
|
|
905 | break; |
|
|
906 | |
|
|
907 | case 'n': |
|
|
908 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4)) |
|
|
909 | { |
|
|
910 | dec->cur += 4; |
|
|
911 | return newSVsv (&PL_sv_undef); |
|
|
912 | } |
|
|
913 | else |
|
|
914 | ERR ("'null' expected"); |
|
|
915 | |
|
|
916 | break; |
|
|
917 | |
|
|
918 | default: |
|
|
919 | ERR ("malformed CBOR string, neither array, object, number, string or atom"); |
|
|
920 | break; |
|
|
921 | } |
|
|
922 | #endif |
|
|
923 | |
1054 | |
924 | fail: |
1055 | fail: |
925 | return &PL_sv_undef; |
1056 | return &PL_sv_undef; |
926 | } |
1057 | } |
927 | |
1058 | |
928 | static SV * |
1059 | static SV * |
929 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1060 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
930 | { |
1061 | { |
931 | dec_t dec; |
1062 | dec_t dec = { }; |
932 | SV *sv; |
1063 | SV *sv; |
|
|
1064 | STRLEN len; |
|
|
1065 | char *data = SvPVbyte (string, len); |
933 | |
1066 | |
934 | /* work around bugs in 5.10 where manipulating magic values |
|
|
935 | * makes perl ignore the magic in subsequent accesses. |
|
|
936 | * also make a copy of non-PV values, to get them into a clean |
|
|
937 | * state (SvPV should do that, but it's buggy, see below). |
|
|
938 | */ |
|
|
939 | /*SvGETMAGIC (string);*/ |
|
|
940 | if (SvMAGICAL (string) || !SvPOK (string)) |
|
|
941 | string = sv_2mortal (newSVsv (string)); |
|
|
942 | |
|
|
943 | SvUPGRADE (string, SVt_PV); |
|
|
944 | |
|
|
945 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
946 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
947 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
948 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
949 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
950 | * and hope for the best. |
|
|
951 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
952 | * assertion business is seriously broken, try yet another workaround |
|
|
953 | * for the broken -DDEBUGGING. |
|
|
954 | */ |
|
|
955 | { |
|
|
956 | #ifdef DEBUGGING |
|
|
957 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
958 | #else |
|
|
959 | STRLEN offset = SvCUR (string); |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | if (offset > cbor->max_size && cbor->max_size) |
1067 | if (len > cbor->max_size && cbor->max_size) |
963 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1068 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
964 | (unsigned long)SvCUR (string), (unsigned long)cbor->max_size); |
1069 | (unsigned long)len, (unsigned long)cbor->max_size); |
965 | } |
|
|
966 | |
|
|
967 | sv_utf8_downgrade (string, 0); |
|
|
968 | |
1070 | |
969 | dec.cbor = *cbor; |
1071 | dec.cbor = *cbor; |
970 | dec.cur = (U8 *)SvPVX (string); |
1072 | dec.cur = (U8 *)data; |
971 | dec.end = (U8 *)SvEND (string); |
1073 | dec.end = (U8 *)data + len; |
972 | dec.err = 0; |
|
|
973 | dec.depth = 0; |
|
|
974 | |
|
|
975 | if (dec.cbor.cb_object || dec.cbor.cb_sk_object) |
|
|
976 | ;//TODO dec.cbor.flags |= F_HOOK; |
|
|
977 | |
1074 | |
978 | sv = decode_sv (&dec); |
1075 | sv = decode_sv (&dec); |
979 | |
1076 | |
980 | if (offset_return) |
1077 | if (offset_return) |
981 | *offset_return = dec.cur; |
1078 | *offset_return = dec.cur; |
… | |
… | |
985 | dec.err = "garbage after CBOR object"; |
1082 | dec.err = "garbage after CBOR object"; |
986 | |
1083 | |
987 | if (dec.err) |
1084 | if (dec.err) |
988 | { |
1085 | { |
989 | SvREFCNT_dec (sv); |
1086 | SvREFCNT_dec (sv); |
990 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1087 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
991 | } |
1088 | } |
992 | |
1089 | |
993 | sv = sv_2mortal (sv); |
1090 | sv = sv_2mortal (sv); |
994 | |
1091 | |
995 | return sv; |
1092 | return sv; |
… | |
… | |
1001 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1098 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1002 | |
1099 | |
1003 | BOOT: |
1100 | BOOT: |
1004 | { |
1101 | { |
1005 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1102 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1006 | cbor_boolean_stash = gv_stashpv ("CBOR::XS::Boolean", 1); |
1103 | cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1007 | |
1104 | |
1008 | cbor_true = get_bool ("CBOR::XS::true"); |
1105 | types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
1009 | cbor_false = get_bool ("CBOR::XS::false"); |
1106 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
|
|
1107 | |
|
|
1108 | types_true = get_bool ("Types::Serialiser::true" ); |
|
|
1109 | types_false = get_bool ("Types::Serialiser::false"); |
|
|
1110 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1111 | |
|
|
1112 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
|
|
1113 | |
|
|
1114 | sv_cbor = newSVpv ("CBOR", 0); |
|
|
1115 | SvREADONLY_on (sv_cbor); |
1010 | } |
1116 | } |
1011 | |
1117 | |
1012 | PROTOTYPES: DISABLE |
1118 | PROTOTYPES: DISABLE |
1013 | |
1119 | |
1014 | void CLONE (...) |
1120 | void CLONE (...) |
1015 | CODE: |
1121 | CODE: |
1016 | cbor_stash = 0; |
1122 | cbor_stash = 0; |
|
|
1123 | cbor_tagged_stash = 0; |
|
|
1124 | types_error_stash = 0; |
1017 | cbor_boolean_stash = 0; |
1125 | types_boolean_stash = 0; |
1018 | |
1126 | |
1019 | void new (char *klass) |
1127 | void new (char *klass) |
1020 | PPCODE: |
1128 | PPCODE: |
1021 | { |
1129 | { |
1022 | SV *pv = NEWSV (0, sizeof (CBOR)); |
1130 | SV *pv = NEWSV (0, sizeof (CBOR)); |
… | |
… | |
1030 | |
1138 | |
1031 | void shrink (CBOR *self, int enable = 1) |
1139 | void shrink (CBOR *self, int enable = 1) |
1032 | ALIAS: |
1140 | ALIAS: |
1033 | shrink = F_SHRINK |
1141 | shrink = F_SHRINK |
1034 | allow_unknown = F_ALLOW_UNKNOWN |
1142 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1143 | allow_sharing = F_ALLOW_SHARING |
|
|
1144 | allow_stringref = F_ALLOW_STRINGREF |
1035 | PPCODE: |
1145 | PPCODE: |
1036 | { |
1146 | { |
1037 | if (enable) |
1147 | if (enable) |
1038 | self->flags |= ix; |
1148 | self->flags |= ix; |
1039 | else |
1149 | else |
… | |
… | |
1044 | |
1154 | |
1045 | void get_shrink (CBOR *self) |
1155 | void get_shrink (CBOR *self) |
1046 | ALIAS: |
1156 | ALIAS: |
1047 | get_shrink = F_SHRINK |
1157 | get_shrink = F_SHRINK |
1048 | get_allow_unknown = F_ALLOW_UNKNOWN |
1158 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1159 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1160 | get_allow_stringref = F_ALLOW_STRINGREF |
1049 | PPCODE: |
1161 | PPCODE: |
1050 | XPUSHs (boolSV (self->flags & ix)); |
1162 | XPUSHs (boolSV (self->flags & ix)); |
1051 | |
1163 | |
1052 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1164 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1053 | PPCODE: |
1165 | PPCODE: |
… | |
… | |
1069 | CODE: |
1181 | CODE: |
1070 | RETVAL = self->max_size; |
1182 | RETVAL = self->max_size; |
1071 | OUTPUT: |
1183 | OUTPUT: |
1072 | RETVAL |
1184 | RETVAL |
1073 | |
1185 | |
1074 | #if 0 //TODO |
1186 | void filter (CBOR *self, SV *filter = 0) |
1075 | |
|
|
1076 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
1077 | PPCODE: |
1187 | PPCODE: |
1078 | { |
|
|
1079 | SvREFCNT_dec (self->cb_object); |
1188 | SvREFCNT_dec (self->filter); |
1080 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1189 | self->filter = filter ? newSVsv (filter) : filter; |
1081 | |
|
|
1082 | XPUSHs (ST (0)); |
1190 | XPUSHs (ST (0)); |
1083 | } |
|
|
1084 | |
1191 | |
1085 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
1192 | SV *get_filter (CBOR *self) |
1086 | PPCODE: |
1193 | CODE: |
1087 | { |
1194 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1088 | if (!self->cb_sk_object) |
1195 | OUTPUT: |
1089 | self->cb_sk_object = newHV (); |
1196 | RETVAL |
1090 | |
|
|
1091 | if (SvOK (cb)) |
|
|
1092 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1093 | else |
|
|
1094 | { |
|
|
1095 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1096 | |
|
|
1097 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1098 | { |
|
|
1099 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1100 | self->cb_sk_object = 0; |
|
|
1101 | } |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | XPUSHs (ST (0)); |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | #endif |
|
|
1108 | |
1197 | |
1109 | void encode (CBOR *self, SV *scalar) |
1198 | void encode (CBOR *self, SV *scalar) |
1110 | PPCODE: |
1199 | PPCODE: |
1111 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1200 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1112 | XPUSHs (scalar); |
1201 | XPUSHs (scalar); |
… | |
… | |
1126 | PUSHs (sv); |
1215 | PUSHs (sv); |
1127 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1216 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1128 | } |
1217 | } |
1129 | |
1218 | |
1130 | void DESTROY (CBOR *self) |
1219 | void DESTROY (CBOR *self) |
1131 | CODE: |
1220 | PPCODE: |
1132 | SvREFCNT_dec (self->cb_sk_object); |
1221 | cbor_free (self); |
1133 | SvREFCNT_dec (self->cb_object); |
|
|
1134 | |
1222 | |
1135 | PROTOTYPES: ENABLE |
1223 | PROTOTYPES: ENABLE |
1136 | |
1224 | |
1137 | void encode_cbor (SV *scalar) |
1225 | void encode_cbor (SV *scalar) |
1138 | PPCODE: |
1226 | PPCODE: |