… | |
… | |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
11 | |
11 | |
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|
12 | #define ECB_NO_THREADS 1 |
12 | #include "ecb.h" |
13 | #include "ecb.h" |
13 | |
14 | |
14 | // compatibility with perl <5.18 |
15 | // compatibility with perl <5.18 |
15 | #ifndef HvNAMELEN_get |
16 | #ifndef HvNAMELEN_get |
16 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
17 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
… | |
… | |
19 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
20 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
20 | #endif |
21 | #endif |
21 | #ifndef HvNAMEUTF8 |
22 | #ifndef HvNAMEUTF8 |
22 | # define HvNAMEUTF8(hv) 0 |
23 | # define HvNAMEUTF8(hv) 0 |
23 | #endif |
24 | #endif |
|
|
25 | #ifndef SvREFCNT_dec_NN |
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26 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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27 | #endif |
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28 | |
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29 | // known major and minor types |
|
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30 | enum cbor_type |
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31 | { |
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32 | MAJOR_SHIFT = 5, |
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33 | MINOR_MASK = 0x1f, |
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34 | |
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35 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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36 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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37 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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38 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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39 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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40 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
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41 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
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42 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
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43 | |
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44 | // INT/STRING/ARRAY/MAP subtypes |
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45 | LENGTH_EXT1 = 24, |
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46 | LENGTH_EXT2 = 25, |
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47 | LENGTH_EXT4 = 26, |
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48 | LENGTH_EXT8 = 27, |
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49 | |
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50 | // SIMPLE types (effectively MISC subtypes) |
|
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51 | SIMPLE_FALSE = 20, |
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52 | SIMPLE_TRUE = 21, |
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53 | SIMPLE_NULL = 22, |
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54 | SIMPLE_UNDEF = 23, |
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55 | |
|
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56 | // MISC subtype (unused) |
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57 | MISC_EXT1 = 24, |
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58 | MISC_FLOAT16 = 25, |
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59 | MISC_FLOAT32 = 26, |
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60 | MISC_FLOAT64 = 27, |
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61 | |
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62 | // BYTES/TEXT/ARRAY/MAP |
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63 | MINOR_INDEF = 31, |
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64 | }; |
24 | |
65 | |
25 | // known tags |
66 | // known tags |
26 | enum cbor_tag |
67 | enum cbor_tag |
27 | { |
68 | { |
28 | // inofficial extensions (pending iana registration) |
69 | // extensions |
29 | CBOR_TAG_PERL_OBJECT = 256, |
70 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
30 | CBOR_TAG_GENERIC_OBJECT = 257, |
71 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
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72 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
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73 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
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74 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
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75 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
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76 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
31 | |
77 | |
32 | // rfc7049 |
78 | // rfc7049 |
33 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
79 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
34 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
80 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
35 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
81 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
36 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
82 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
37 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
83 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
38 | CBOR_TAG_BIGFLOAT = 5, // array |
84 | CBOR_TAG_BIGFLOAT = 5, // array |
39 | |
85 | |
40 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
86 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
41 | CBOR_TAG_CONV_B64 = 22, // base64, any |
87 | CBOR_TAG_CONV_B64 = 22, // base64, any |
42 | CBOR_TAG_CONV_HEX = 23, // base16, any |
88 | CBOR_TAG_CONV_HEX = 23, // base16, any |
43 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
89 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
44 | |
90 | |
45 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
91 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
46 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
92 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
47 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
93 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
48 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
94 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
49 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
95 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
50 | |
96 | |
51 | CBOR_TAG_MAGIC = 55799 // self-describe cbor |
97 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
52 | }; |
98 | }; |
53 | |
99 | |
54 | #define F_SHRINK 0x00000200UL |
100 | #define F_SHRINK 0x00000001UL |
55 | #define F_ALLOW_UNKNOWN 0x00002000UL |
101 | #define F_ALLOW_UNKNOWN 0x00000002UL |
|
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102 | #define F_ALLOW_SHARING 0x00000004UL |
|
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103 | #define F_ALLOW_CYCLES 0x00000008UL |
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104 | #define F_PACK_STRINGS 0x00000010UL |
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105 | #define F_VALIDATE_UTF8 0x00000020UL |
56 | |
106 | |
57 | #define INIT_SIZE 32 // initial scalar size to be allocated |
107 | #define INIT_SIZE 32 // initial scalar size to be allocated |
58 | |
108 | |
59 | #define SB do { |
109 | #define SB do { |
60 | #define SE } while (0) |
110 | #define SE } while (0) |
… | |
… | |
72 | # define CBOR_SLOW 0 |
122 | # define CBOR_SLOW 0 |
73 | # define CBOR_STASH cbor_stash |
123 | # define CBOR_STASH cbor_stash |
74 | #endif |
124 | #endif |
75 | |
125 | |
76 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
126 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
77 | static SV *types_true, *types_false, *types_error, *sv_cbor; |
127 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
78 | |
128 | |
79 | typedef struct { |
129 | typedef struct { |
80 | U32 flags; |
130 | U32 flags; |
81 | U32 max_depth; |
131 | U32 max_depth; |
82 | STRLEN max_size; |
132 | STRLEN max_size; |
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133 | SV *filter; |
|
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134 | |
|
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135 | // for the incremental parser |
|
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136 | STRLEN incr_pos; // the current offset into the text |
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137 | STRLEN incr_need; // minimum bytes needed to decode |
|
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138 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
83 | } CBOR; |
139 | } CBOR; |
84 | |
140 | |
85 | ecb_inline void |
141 | ecb_inline void |
86 | cbor_init (CBOR *cbor) |
142 | cbor_init (CBOR *cbor) |
87 | { |
143 | { |
88 | Zero (cbor, 1, CBOR); |
144 | Zero (cbor, 1, CBOR); |
89 | cbor->max_depth = 512; |
145 | cbor->max_depth = 512; |
|
|
146 | } |
|
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147 | |
|
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148 | ecb_inline void |
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149 | cbor_free (CBOR *cbor) |
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150 | { |
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151 | SvREFCNT_dec (cbor->filter); |
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152 | SvREFCNT_dec (cbor->incr_count); |
90 | } |
153 | } |
91 | |
154 | |
92 | ///////////////////////////////////////////////////////////////////////////// |
155 | ///////////////////////////////////////////////////////////////////////////// |
93 | // utility functions |
156 | // utility functions |
94 | |
157 | |
… | |
… | |
116 | SvPV_renew (sv, SvCUR (sv) + 1); |
179 | SvPV_renew (sv, SvCUR (sv) + 1); |
117 | #endif |
180 | #endif |
118 | } |
181 | } |
119 | } |
182 | } |
120 | |
183 | |
121 | ///////////////////////////////////////////////////////////////////////////// |
184 | // minimum length of a string to be registered for stringref |
122 | // fp hell |
185 | ecb_inline int |
123 | |
186 | minimum_string_length (UV idx) |
124 | //TODO |
187 | { |
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188 | return idx > 23 |
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189 | ? idx > 0xffU |
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190 | ? idx > 0xffffU |
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191 | ? idx > 0xffffffffU |
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192 | ? 11 |
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193 | : 7 |
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194 | : 5 |
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195 | : 4 |
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196 | : 3; |
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197 | } |
125 | |
198 | |
126 | ///////////////////////////////////////////////////////////////////////////// |
199 | ///////////////////////////////////////////////////////////////////////////// |
127 | // encoder |
200 | // encoder |
128 | |
201 | |
129 | // structure used for encoding CBOR |
202 | // structure used for encoding CBOR |
… | |
… | |
132 | char *cur; // SvPVX (sv) + current output position |
205 | char *cur; // SvPVX (sv) + current output position |
133 | char *end; // SvEND (sv) |
206 | char *end; // SvEND (sv) |
134 | SV *sv; // result scalar |
207 | SV *sv; // result scalar |
135 | CBOR cbor; |
208 | CBOR cbor; |
136 | U32 depth; // recursion level |
209 | U32 depth; // recursion level |
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210 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
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211 | UV stringref_idx; |
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212 | HV *shareable; // ptr => index, or 0 |
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213 | UV shareable_idx; |
137 | } enc_t; |
214 | } enc_t; |
138 | |
215 | |
139 | ecb_inline void |
216 | ecb_inline void |
140 | need (enc_t *enc, STRLEN len) |
217 | need (enc_t *enc, STRLEN len) |
141 | { |
218 | { |
… | |
… | |
158 | static void |
235 | static void |
159 | encode_uint (enc_t *enc, int major, UV len) |
236 | encode_uint (enc_t *enc, int major, UV len) |
160 | { |
237 | { |
161 | need (enc, 9); |
238 | need (enc, 9); |
162 | |
239 | |
163 | if (len < 24) |
240 | if (ecb_expect_true (len < LENGTH_EXT1)) |
164 | *enc->cur++ = major | len; |
241 | *enc->cur++ = major | len; |
165 | else if (len <= 0xff) |
242 | else if (ecb_expect_true (len <= 0xffU)) |
166 | { |
243 | { |
167 | *enc->cur++ = major | 24; |
244 | *enc->cur++ = major | LENGTH_EXT1; |
168 | *enc->cur++ = len; |
245 | *enc->cur++ = len; |
169 | } |
246 | } |
170 | else if (len <= 0xffff) |
247 | else if (len <= 0xffffU) |
171 | { |
248 | { |
172 | *enc->cur++ = major | 25; |
249 | *enc->cur++ = major | LENGTH_EXT2; |
173 | *enc->cur++ = len >> 8; |
250 | *enc->cur++ = len >> 8; |
174 | *enc->cur++ = len; |
251 | *enc->cur++ = len; |
175 | } |
252 | } |
176 | else if (len <= 0xffffffff) |
253 | else if (len <= 0xffffffffU) |
177 | { |
254 | { |
178 | *enc->cur++ = major | 26; |
255 | *enc->cur++ = major | LENGTH_EXT4; |
179 | *enc->cur++ = len >> 24; |
256 | *enc->cur++ = len >> 24; |
180 | *enc->cur++ = len >> 16; |
257 | *enc->cur++ = len >> 16; |
181 | *enc->cur++ = len >> 8; |
258 | *enc->cur++ = len >> 8; |
182 | *enc->cur++ = len; |
259 | *enc->cur++ = len; |
183 | } |
260 | } |
184 | else |
261 | else |
185 | { |
262 | { |
186 | *enc->cur++ = major | 27; |
263 | *enc->cur++ = major | LENGTH_EXT8; |
187 | *enc->cur++ = len >> 56; |
264 | *enc->cur++ = len >> 56; |
188 | *enc->cur++ = len >> 48; |
265 | *enc->cur++ = len >> 48; |
189 | *enc->cur++ = len >> 40; |
266 | *enc->cur++ = len >> 40; |
190 | *enc->cur++ = len >> 32; |
267 | *enc->cur++ = len >> 32; |
191 | *enc->cur++ = len >> 24; |
268 | *enc->cur++ = len >> 24; |
… | |
… | |
193 | *enc->cur++ = len >> 8; |
270 | *enc->cur++ = len >> 8; |
194 | *enc->cur++ = len; |
271 | *enc->cur++ = len; |
195 | } |
272 | } |
196 | } |
273 | } |
197 | |
274 | |
198 | static void |
275 | ecb_inline void |
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276 | encode_tag (enc_t *enc, UV tag) |
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277 | { |
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278 | encode_uint (enc, MAJOR_TAG, tag); |
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279 | } |
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280 | |
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281 | ecb_inline void |
199 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
282 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
200 | { |
283 | { |
201 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
284 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
202 | need (enc, len); |
285 | need (enc, len); |
203 | memcpy (enc->cur, str, len); |
286 | memcpy (enc->cur, str, len); |
204 | enc->cur += len; |
287 | enc->cur += len; |
205 | } |
288 | } |
206 | |
289 | |
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290 | static void |
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291 | encode_strref (enc_t *enc, int utf8, char *str, STRLEN len) |
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292 | { |
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293 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
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294 | { |
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295 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
|
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296 | |
|
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297 | if (SvOK (*svp)) |
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298 | { |
|
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299 | // already registered, use stringref |
|
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300 | encode_tag (enc, CBOR_TAG_STRINGREF); |
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301 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
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302 | return; |
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303 | } |
|
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304 | else if (len >= minimum_string_length (enc->stringref_idx)) |
|
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305 | { |
|
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306 | // register only |
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307 | sv_setuv (*svp, enc->stringref_idx); |
|
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308 | ++enc->stringref_idx; |
|
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309 | } |
|
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310 | } |
|
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311 | |
|
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312 | encode_str (enc, utf8, str, len); |
|
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313 | } |
|
|
314 | |
207 | static void encode_sv (enc_t *enc, SV *sv); |
315 | static void encode_sv (enc_t *enc, SV *sv); |
208 | |
316 | |
209 | static void |
317 | static void |
210 | encode_av (enc_t *enc, AV *av) |
318 | encode_av (enc_t *enc, AV *av) |
211 | { |
319 | { |
… | |
… | |
214 | if (enc->depth >= enc->cbor.max_depth) |
322 | if (enc->depth >= enc->cbor.max_depth) |
215 | croak (ERR_NESTING_EXCEEDED); |
323 | croak (ERR_NESTING_EXCEEDED); |
216 | |
324 | |
217 | ++enc->depth; |
325 | ++enc->depth; |
218 | |
326 | |
219 | encode_uint (enc, 0x80, len + 1); |
327 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
220 | |
328 | |
|
|
329 | if (SvMAGICAL (av)) |
221 | for (i = 0; i <= len; ++i) |
330 | for (i = 0; i <= len; ++i) |
222 | { |
331 | { |
223 | SV **svp = av_fetch (av, i, 0); |
332 | SV **svp = av_fetch (av, i, 0); |
224 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
333 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
225 | } |
334 | } |
|
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335 | else |
|
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336 | for (i = 0; i <= len; ++i) |
|
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337 | { |
|
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338 | SV *sv = AvARRAY (av)[i]; |
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339 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
|
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340 | } |
226 | |
341 | |
227 | --enc->depth; |
342 | --enc->depth; |
228 | } |
343 | } |
229 | |
344 | |
230 | static void |
345 | static void |
… | |
… | |
239 | |
354 | |
240 | int pairs = hv_iterinit (hv); |
355 | int pairs = hv_iterinit (hv); |
241 | int mg = SvMAGICAL (hv); |
356 | int mg = SvMAGICAL (hv); |
242 | |
357 | |
243 | if (mg) |
358 | if (mg) |
244 | encode_ch (enc, 0xa0 | 31); |
359 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
245 | else |
360 | else |
246 | encode_uint (enc, 0xa0, pairs); |
361 | encode_uint (enc, MAJOR_MAP, pairs); |
247 | |
362 | |
248 | while ((he = hv_iternext (hv))) |
363 | while ((he = hv_iternext (hv))) |
249 | { |
364 | { |
250 | if (HeKLEN (he) == HEf_SVKEY) |
365 | if (HeKLEN (he) == HEf_SVKEY) |
251 | encode_sv (enc, HeSVKEY (he)); |
366 | encode_sv (enc, HeSVKEY (he)); |
252 | else |
367 | else |
253 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
368 | encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
254 | |
369 | |
255 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
370 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
256 | } |
371 | } |
257 | |
372 | |
258 | if (mg) |
373 | if (mg) |
259 | encode_ch (enc, 0xe0 | 31); |
374 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
260 | |
375 | |
261 | --enc->depth; |
376 | --enc->depth; |
262 | } |
377 | } |
263 | |
378 | |
264 | // encode objects, arrays and special \0=false and \1=true values. |
379 | // encode objects, arrays and special \0=false and \1=true values. |
265 | static void |
380 | static void |
266 | encode_rv (enc_t *enc, SV *sv) |
381 | encode_rv (enc_t *enc, SV *sv) |
267 | { |
382 | { |
268 | svtype svt; |
|
|
269 | |
|
|
270 | SvGETMAGIC (sv); |
383 | SvGETMAGIC (sv); |
|
|
384 | |
271 | svt = SvTYPE (sv); |
385 | svtype svt = SvTYPE (sv); |
272 | |
386 | |
273 | if (ecb_expect_false (SvOBJECT (sv))) |
387 | if (ecb_expect_false (SvOBJECT (sv))) |
274 | { |
388 | { |
275 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
389 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
276 | ? types_boolean_stash |
390 | ? types_boolean_stash |
… | |
… | |
281 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
395 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
282 | ? cbor_tagged_stash |
396 | ? cbor_tagged_stash |
283 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
397 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
284 | |
398 | |
285 | HV *stash = SvSTASH (sv); |
399 | HV *stash = SvSTASH (sv); |
286 | GV *method; |
|
|
287 | |
400 | |
288 | if (stash == boolean_stash) |
401 | if (stash == boolean_stash) |
289 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
402 | { |
|
|
403 | encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
|
|
404 | return; |
|
|
405 | } |
290 | else if (stash == error_stash) |
406 | else if (stash == error_stash) |
291 | encode_ch (enc, 0xe0 | 23); |
407 | { |
|
|
408 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
409 | return; |
|
|
410 | } |
292 | else if (stash == tagged_stash) |
411 | else if (stash == tagged_stash) |
293 | { |
412 | { |
294 | if (svt != SVt_PVAV) |
413 | if (svt != SVt_PVAV) |
295 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
414 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
296 | |
415 | |
297 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
416 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
298 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
417 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
|
418 | |
|
|
419 | return; |
|
|
420 | } |
|
|
421 | } |
|
|
422 | |
|
|
423 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
|
|
424 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
|
|
425 | { |
|
|
426 | if (!enc->shareable) |
|
|
427 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
428 | |
|
|
429 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
430 | |
|
|
431 | if (SvOK (*svp)) |
299 | } |
432 | { |
|
|
433 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
434 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
435 | return; |
|
|
436 | } |
|
|
437 | else |
|
|
438 | { |
|
|
439 | sv_setuv (*svp, enc->shareable_idx); |
|
|
440 | ++enc->shareable_idx; |
|
|
441 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
442 | } |
|
|
443 | } |
|
|
444 | |
|
|
445 | if (ecb_expect_false (SvOBJECT (sv))) |
|
|
446 | { |
|
|
447 | HV *stash = SvSTASH (sv); |
|
|
448 | GV *method; |
|
|
449 | |
300 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
450 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
301 | { |
451 | { |
302 | dSP; |
452 | dSP; |
303 | |
453 | |
304 | ENTER; SAVETMPS; PUSHMARK (SP); |
454 | ENTER; SAVETMPS; |
|
|
455 | PUSHMARK (SP); |
305 | // we re-bless the reference to get overload and other niceties right |
456 | // we re-bless the reference to get overload and other niceties right |
306 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
457 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
307 | |
458 | |
308 | PUTBACK; |
459 | PUTBACK; |
309 | // G_SCALAR ensures that return value is 1 |
460 | // G_SCALAR ensures that return value is 1 |
… | |
… | |
322 | } |
473 | } |
323 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
474 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
324 | { |
475 | { |
325 | dSP; |
476 | dSP; |
326 | |
477 | |
327 | ENTER; SAVETMPS; PUSHMARK (SP); |
478 | ENTER; SAVETMPS; |
|
|
479 | SAVESTACK_POS (); |
|
|
480 | PUSHMARK (SP); |
328 | EXTEND (SP, 2); |
481 | EXTEND (SP, 2); |
329 | // we re-bless the reference to get overload and other niceties right |
482 | // we re-bless the reference to get overload and other niceties right |
330 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
483 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
331 | PUSHs (sv_cbor); |
484 | PUSHs (sv_cbor); |
332 | |
485 | |
… | |
… | |
336 | |
489 | |
337 | // catch this surprisingly common error |
490 | // catch this surprisingly common error |
338 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
491 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
339 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
492 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
340 | |
493 | |
341 | encode_uint (enc, 0xc0, CBOR_TAG_PERL_OBJECT); |
494 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
342 | encode_uint (enc, 0x80, count + 1); |
495 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
343 | encode_str (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
496 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
344 | |
497 | |
345 | while (count) |
498 | while (count) |
346 | encode_sv (enc, SP[1 - count--]); |
499 | encode_sv (enc, SP[1 - count--]); |
347 | |
500 | |
348 | PUTBACK; |
501 | PUTBACK; |
… | |
… | |
355 | } |
508 | } |
356 | else if (svt == SVt_PVHV) |
509 | else if (svt == SVt_PVHV) |
357 | encode_hv (enc, (HV *)sv); |
510 | encode_hv (enc, (HV *)sv); |
358 | else if (svt == SVt_PVAV) |
511 | else if (svt == SVt_PVAV) |
359 | encode_av (enc, (AV *)sv); |
512 | encode_av (enc, (AV *)sv); |
360 | else if (svt < SVt_PVAV) |
|
|
361 | { |
|
|
362 | STRLEN len = 0; |
|
|
363 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
364 | |
|
|
365 | if (len == 1 && *pv == '1') |
|
|
366 | encode_ch (enc, 0xe0 | 21); |
|
|
367 | else if (len == 1 && *pv == '0') |
|
|
368 | encode_ch (enc, 0xe0 | 20); |
|
|
369 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
370 | encode_ch (enc, 0xe0 | 23); |
|
|
371 | else |
|
|
372 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
373 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
374 | } |
|
|
375 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
376 | encode_ch (enc, 0xe0 | 23); |
|
|
377 | else |
513 | else |
378 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
514 | { |
379 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
515 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
516 | encode_sv (enc, sv); |
|
|
517 | } |
380 | } |
518 | } |
381 | |
519 | |
382 | static void |
520 | static void |
383 | encode_nv (enc_t *enc, SV *sv) |
521 | encode_nv (enc_t *enc, SV *sv) |
384 | { |
522 | { |
385 | double nv = SvNVX (sv); |
523 | double nv = SvNVX (sv); |
386 | |
524 | |
387 | need (enc, 9); |
525 | need (enc, 9); |
388 | |
526 | |
389 | if (ecb_expect_false (nv == (U32)nv)) |
527 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
390 | encode_uint (enc, 0x00, (U32)nv); |
528 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
391 | //TODO: maybe I32? |
529 | //TODO: maybe I32? |
392 | else if (ecb_expect_false (nv == (float)nv)) |
530 | else if (ecb_expect_false (nv == (float)nv)) |
393 | { |
531 | { |
394 | uint32_t fp = ecb_float_to_binary32 (nv); |
532 | uint32_t fp = ecb_float_to_binary32 (nv); |
395 | |
533 | |
396 | *enc->cur++ = 0xe0 | 26; |
534 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
397 | |
535 | |
398 | if (!ecb_big_endian ()) |
536 | if (!ecb_big_endian ()) |
399 | fp = ecb_bswap32 (fp); |
537 | fp = ecb_bswap32 (fp); |
400 | |
538 | |
401 | memcpy (enc->cur, &fp, 4); |
539 | memcpy (enc->cur, &fp, 4); |
… | |
… | |
403 | } |
541 | } |
404 | else |
542 | else |
405 | { |
543 | { |
406 | uint64_t fp = ecb_double_to_binary64 (nv); |
544 | uint64_t fp = ecb_double_to_binary64 (nv); |
407 | |
545 | |
408 | *enc->cur++ = 0xe0 | 27; |
546 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
409 | |
547 | |
410 | if (!ecb_big_endian ()) |
548 | if (!ecb_big_endian ()) |
411 | fp = ecb_bswap64 (fp); |
549 | fp = ecb_bswap64 (fp); |
412 | |
550 | |
413 | memcpy (enc->cur, &fp, 8); |
551 | memcpy (enc->cur, &fp, 8); |
… | |
… | |
422 | |
560 | |
423 | if (SvPOKp (sv)) |
561 | if (SvPOKp (sv)) |
424 | { |
562 | { |
425 | STRLEN len; |
563 | STRLEN len; |
426 | char *str = SvPV (sv, len); |
564 | char *str = SvPV (sv, len); |
427 | encode_str (enc, SvUTF8 (sv), str, len); |
565 | encode_strref (enc, SvUTF8 (sv), str, len); |
428 | } |
566 | } |
429 | else if (SvNOKp (sv)) |
567 | else if (SvNOKp (sv)) |
430 | encode_nv (enc, sv); |
568 | encode_nv (enc, sv); |
431 | else if (SvIOKp (sv)) |
569 | else if (SvIOKp (sv)) |
432 | { |
570 | { |
433 | if (SvIsUV (sv)) |
571 | if (SvIsUV (sv)) |
434 | encode_uint (enc, 0x00, SvUVX (sv)); |
572 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
435 | else if (SvIVX (sv) >= 0) |
573 | else if (SvIVX (sv) >= 0) |
436 | encode_uint (enc, 0x00, SvIVX (sv)); |
574 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
437 | else |
575 | else |
438 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
576 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
439 | } |
577 | } |
440 | else if (SvROK (sv)) |
578 | else if (SvROK (sv)) |
441 | encode_rv (enc, SvRV (sv)); |
579 | encode_rv (enc, SvRV (sv)); |
442 | else if (!SvOK (sv)) |
580 | else if (!SvOK (sv)) |
443 | encode_ch (enc, 0xe0 | 22); |
581 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
444 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
582 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
445 | encode_ch (enc, 0xe0 | 23); |
583 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
446 | else |
584 | else |
447 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
585 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
448 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
586 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
449 | } |
587 | } |
450 | |
588 | |
451 | static SV * |
589 | static SV * |
452 | encode_cbor (SV *scalar, CBOR *cbor) |
590 | encode_cbor (SV *scalar, CBOR *cbor) |
453 | { |
591 | { |
454 | enc_t enc; |
592 | enc_t enc = { 0 }; |
455 | |
593 | |
456 | enc.cbor = *cbor; |
594 | enc.cbor = *cbor; |
457 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
595 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
458 | enc.cur = SvPVX (enc.sv); |
596 | enc.cur = SvPVX (enc.sv); |
459 | enc.end = SvEND (enc.sv); |
597 | enc.end = SvEND (enc.sv); |
460 | enc.depth = 0; |
|
|
461 | |
598 | |
462 | SvPOK_only (enc.sv); |
599 | SvPOK_only (enc.sv); |
|
|
600 | |
|
|
601 | if (cbor->flags & F_PACK_STRINGS) |
|
|
602 | { |
|
|
603 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
604 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
605 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
606 | } |
|
|
607 | |
463 | encode_sv (&enc, scalar); |
608 | encode_sv (&enc, scalar); |
464 | |
609 | |
465 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
610 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
466 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
611 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
467 | |
612 | |
… | |
… | |
481 | U8 *end; // end of input string |
626 | U8 *end; // end of input string |
482 | const char *err; // parse error, if != 0 |
627 | const char *err; // parse error, if != 0 |
483 | CBOR cbor; |
628 | CBOR cbor; |
484 | U32 depth; // recursion depth |
629 | U32 depth; // recursion depth |
485 | U32 maxdepth; // recursion depth limit |
630 | U32 maxdepth; // recursion depth limit |
|
|
631 | AV *shareable; |
|
|
632 | AV *stringref; |
|
|
633 | SV *decode_tagged; |
486 | } dec_t; |
634 | } dec_t; |
487 | |
635 | |
488 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
636 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
489 | |
637 | |
490 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
638 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
… | |
… | |
493 | #define DEC_DEC_DEPTH --dec->depth |
641 | #define DEC_DEC_DEPTH --dec->depth |
494 | |
642 | |
495 | static UV |
643 | static UV |
496 | decode_uint (dec_t *dec) |
644 | decode_uint (dec_t *dec) |
497 | { |
645 | { |
498 | switch (*dec->cur & 31) |
646 | U8 m = *dec->cur & MINOR_MASK; |
499 | { |
647 | ++dec->cur; |
500 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
501 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
502 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
503 | return *dec->cur++ & 31; |
|
|
504 | |
648 | |
505 | case 24: |
649 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
650 | return m; |
|
|
651 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
652 | { |
506 | WANT (2); |
653 | WANT (1); |
507 | dec->cur += 2; |
654 | dec->cur += 1; |
508 | return dec->cur[-1]; |
655 | return dec->cur[-1]; |
509 | |
656 | } |
510 | case 25: |
657 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
658 | { |
511 | WANT (3); |
659 | WANT (2); |
512 | dec->cur += 3; |
660 | dec->cur += 2; |
513 | return (((UV)dec->cur[-2]) << 8) |
661 | return (((UV)dec->cur[-2]) << 8) |
514 | | ((UV)dec->cur[-1]); |
662 | | ((UV)dec->cur[-1]); |
515 | |
663 | } |
516 | case 26: |
664 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
665 | { |
517 | WANT (5); |
666 | WANT (4); |
518 | dec->cur += 5; |
667 | dec->cur += 4; |
519 | return (((UV)dec->cur[-4]) << 24) |
668 | return (((UV)dec->cur[-4]) << 24) |
520 | | (((UV)dec->cur[-3]) << 16) |
669 | | (((UV)dec->cur[-3]) << 16) |
521 | | (((UV)dec->cur[-2]) << 8) |
670 | | (((UV)dec->cur[-2]) << 8) |
522 | | ((UV)dec->cur[-1]); |
671 | | ((UV)dec->cur[-1]); |
523 | |
672 | } |
524 | case 27: |
673 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
674 | { |
525 | WANT (9); |
675 | WANT (8); |
526 | dec->cur += 9; |
676 | dec->cur += 8; |
|
|
677 | |
|
|
678 | return |
|
|
679 | #if UVSIZE < 8 |
|
|
680 | 0 |
|
|
681 | #else |
527 | return (((UV)dec->cur[-8]) << 56) |
682 | (((UV)dec->cur[-8]) << 56) |
528 | | (((UV)dec->cur[-7]) << 48) |
683 | | (((UV)dec->cur[-7]) << 48) |
529 | | (((UV)dec->cur[-6]) << 40) |
684 | | (((UV)dec->cur[-6]) << 40) |
530 | | (((UV)dec->cur[-5]) << 32) |
685 | | (((UV)dec->cur[-5]) << 32) |
|
|
686 | #endif |
531 | | (((UV)dec->cur[-4]) << 24) |
687 | | (((UV)dec->cur[-4]) << 24) |
532 | | (((UV)dec->cur[-3]) << 16) |
688 | | (((UV)dec->cur[-3]) << 16) |
533 | | (((UV)dec->cur[-2]) << 8) |
689 | | (((UV)dec->cur[-2]) << 8) |
534 | | ((UV)dec->cur[-1]); |
690 | | ((UV)dec->cur[-1]); |
535 | |
691 | } |
536 | default: |
692 | else |
537 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
693 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
538 | } |
|
|
539 | |
694 | |
540 | fail: |
695 | fail: |
541 | return 0; |
696 | return 0; |
542 | } |
697 | } |
543 | |
698 | |
… | |
… | |
548 | { |
703 | { |
549 | AV *av = newAV (); |
704 | AV *av = newAV (); |
550 | |
705 | |
551 | DEC_INC_DEPTH; |
706 | DEC_INC_DEPTH; |
552 | |
707 | |
553 | if ((*dec->cur & 31) == 31) |
708 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
554 | { |
709 | { |
555 | ++dec->cur; |
710 | ++dec->cur; |
556 | |
711 | |
557 | for (;;) |
712 | for (;;) |
558 | { |
713 | { |
559 | WANT (1); |
714 | WANT (1); |
560 | |
715 | |
561 | if (*dec->cur == (0xe0 | 31)) |
716 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
562 | { |
717 | { |
563 | ++dec->cur; |
718 | ++dec->cur; |
564 | break; |
719 | break; |
565 | } |
720 | } |
566 | |
721 | |
… | |
… | |
569 | } |
724 | } |
570 | else |
725 | else |
571 | { |
726 | { |
572 | int i, len = decode_uint (dec); |
727 | int i, len = decode_uint (dec); |
573 | |
728 | |
|
|
729 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
574 | av_fill (av, len - 1); |
730 | av_fill (av, len - 1); |
575 | |
731 | |
576 | for (i = 0; i < len; ++i) |
732 | for (i = 0; i < len; ++i) |
577 | AvARRAY (av)[i] = decode_sv (dec); |
733 | AvARRAY (av)[i] = decode_sv (dec); |
578 | } |
734 | } |
… | |
… | |
584 | SvREFCNT_dec (av); |
740 | SvREFCNT_dec (av); |
585 | DEC_DEC_DEPTH; |
741 | DEC_DEC_DEPTH; |
586 | return &PL_sv_undef; |
742 | return &PL_sv_undef; |
587 | } |
743 | } |
588 | |
744 | |
|
|
745 | static void |
|
|
746 | decode_he (dec_t *dec, HV *hv) |
|
|
747 | { |
|
|
748 | // for speed reasons, we specialcase single-string |
|
|
749 | // byte or utf-8 strings as keys, but only when !stringref |
|
|
750 | |
|
|
751 | if (ecb_expect_true (!dec->stringref)) |
|
|
752 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
|
|
753 | { |
|
|
754 | I32 len = decode_uint (dec); |
|
|
755 | char *key = (char *)dec->cur; |
|
|
756 | |
|
|
757 | WANT (len); |
|
|
758 | dec->cur += len; |
|
|
759 | |
|
|
760 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
761 | |
|
|
762 | return; |
|
|
763 | } |
|
|
764 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
|
|
765 | { |
|
|
766 | I32 len = decode_uint (dec); |
|
|
767 | char *key = (char *)dec->cur; |
|
|
768 | |
|
|
769 | WANT (len); |
|
|
770 | dec->cur += len; |
|
|
771 | |
|
|
772 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
773 | if (!is_utf8_string (key, len)) |
|
|
774 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
|
|
775 | |
|
|
776 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
777 | |
|
|
778 | return; |
|
|
779 | } |
|
|
780 | |
|
|
781 | SV *k = decode_sv (dec); |
|
|
782 | SV *v = decode_sv (dec); |
|
|
783 | |
|
|
784 | hv_store_ent (hv, k, v, 0); |
|
|
785 | SvREFCNT_dec (k); |
|
|
786 | |
|
|
787 | fail: |
|
|
788 | ; |
|
|
789 | } |
|
|
790 | |
589 | static SV * |
791 | static SV * |
590 | decode_hv (dec_t *dec) |
792 | decode_hv (dec_t *dec) |
591 | { |
793 | { |
592 | HV *hv = newHV (); |
794 | HV *hv = newHV (); |
593 | |
795 | |
594 | DEC_INC_DEPTH; |
796 | DEC_INC_DEPTH; |
595 | |
797 | |
596 | if ((*dec->cur & 31) == 31) |
798 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
597 | { |
799 | { |
598 | ++dec->cur; |
800 | ++dec->cur; |
599 | |
801 | |
600 | for (;;) |
802 | for (;;) |
601 | { |
803 | { |
602 | WANT (1); |
804 | WANT (1); |
603 | |
805 | |
604 | if (*dec->cur == (0xe0 | 31)) |
806 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
605 | { |
807 | { |
606 | ++dec->cur; |
808 | ++dec->cur; |
607 | break; |
809 | break; |
608 | } |
810 | } |
609 | |
811 | |
610 | SV *k = decode_sv (dec); |
812 | decode_he (dec, hv); |
611 | SV *v = decode_sv (dec); |
|
|
612 | |
|
|
613 | hv_store_ent (hv, k, v, 0); |
|
|
614 | SvREFCNT_dec (k); |
|
|
615 | } |
813 | } |
616 | } |
814 | } |
617 | else |
815 | else |
618 | { |
816 | { |
619 | int len = decode_uint (dec); |
817 | int pairs = decode_uint (dec); |
620 | |
818 | |
621 | while (len--) |
819 | while (pairs--) |
622 | { |
820 | decode_he (dec, hv); |
623 | SV *k = decode_sv (dec); |
|
|
624 | SV *v = decode_sv (dec); |
|
|
625 | |
|
|
626 | hv_store_ent (hv, k, v, 0); |
|
|
627 | SvREFCNT_dec (k); |
|
|
628 | } |
|
|
629 | } |
821 | } |
630 | |
822 | |
631 | DEC_DEC_DEPTH; |
823 | DEC_DEC_DEPTH; |
632 | return newRV_noinc ((SV *)hv); |
824 | return newRV_noinc ((SV *)hv); |
633 | |
825 | |
… | |
… | |
640 | static SV * |
832 | static SV * |
641 | decode_str (dec_t *dec, int utf8) |
833 | decode_str (dec_t *dec, int utf8) |
642 | { |
834 | { |
643 | SV *sv = 0; |
835 | SV *sv = 0; |
644 | |
836 | |
645 | if ((*dec->cur & 31) == 31) |
837 | if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
646 | { |
838 | { |
|
|
839 | // indefinite length strings |
647 | ++dec->cur; |
840 | ++dec->cur; |
648 | |
841 | |
|
|
842 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
843 | |
649 | sv = newSVpvn ("", 0); |
844 | sv = newSVpvn ("", 0); |
650 | |
845 | |
651 | // not very fast, and certainly not robust against illegal input |
|
|
652 | for (;;) |
846 | for (;;) |
653 | { |
847 | { |
654 | WANT (1); |
848 | WANT (1); |
655 | |
849 | |
656 | if (*dec->cur == (0xe0 | 31)) |
850 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
851 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
657 | { |
852 | { |
658 | ++dec->cur; |
853 | ++dec->cur; |
659 | break; |
854 | break; |
660 | } |
855 | } |
|
|
856 | else |
|
|
857 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
661 | |
858 | |
662 | sv_catsv (sv, decode_sv (dec)); |
859 | STRLEN len = decode_uint (dec); |
|
|
860 | |
|
|
861 | WANT (len); |
|
|
862 | sv_catpvn (sv, dec->cur, len); |
|
|
863 | dec->cur += len; |
663 | } |
864 | } |
664 | } |
865 | } |
665 | else |
866 | else |
666 | { |
867 | { |
667 | STRLEN len = decode_uint (dec); |
868 | STRLEN len = decode_uint (dec); |
668 | |
869 | |
669 | WANT (len); |
870 | WANT (len); |
670 | sv = newSVpvn (dec->cur, len); |
871 | sv = newSVpvn (dec->cur, len); |
671 | dec->cur += len; |
872 | dec->cur += len; |
|
|
873 | |
|
|
874 | if (ecb_expect_false (dec->stringref) |
|
|
875 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
876 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
672 | } |
877 | } |
673 | |
878 | |
674 | if (utf8) |
879 | if (utf8) |
|
|
880 | { |
|
|
881 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
882 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
883 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
884 | |
675 | SvUTF8_on (sv); |
885 | SvUTF8_on (sv); |
|
|
886 | } |
676 | |
887 | |
677 | return sv; |
888 | return sv; |
678 | |
889 | |
679 | fail: |
890 | fail: |
680 | SvREFCNT_dec (sv); |
891 | SvREFCNT_dec (sv); |
… | |
… | |
682 | } |
893 | } |
683 | |
894 | |
684 | static SV * |
895 | static SV * |
685 | decode_tagged (dec_t *dec) |
896 | decode_tagged (dec_t *dec) |
686 | { |
897 | { |
|
|
898 | SV *sv = 0; |
687 | UV tag = decode_uint (dec); |
899 | UV tag = decode_uint (dec); |
|
|
900 | |
|
|
901 | WANT (1); |
|
|
902 | |
|
|
903 | switch (tag) |
|
|
904 | { |
|
|
905 | case CBOR_TAG_MAGIC: |
688 | SV *sv = decode_sv (dec); |
906 | sv = decode_sv (dec); |
|
|
907 | break; |
689 | |
908 | |
690 | if (tag == CBOR_TAG_MAGIC) |
909 | case CBOR_TAG_INDIRECTION: |
691 | return sv; |
910 | sv = newRV_noinc (decode_sv (dec)); |
692 | else if (tag == CBOR_TAG_PERL_OBJECT) |
911 | break; |
693 | { |
912 | |
|
|
913 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
914 | { |
|
|
915 | ENTER; SAVETMPS; |
|
|
916 | |
|
|
917 | SAVESPTR (dec->stringref); |
|
|
918 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
919 | |
|
|
920 | sv = decode_sv (dec); |
|
|
921 | |
|
|
922 | FREETMPS; LEAVE; |
|
|
923 | } |
|
|
924 | break; |
|
|
925 | |
|
|
926 | case CBOR_TAG_STRINGREF: |
|
|
927 | { |
|
|
928 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
929 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
930 | |
|
|
931 | UV idx = decode_uint (dec); |
|
|
932 | |
|
|
933 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
|
|
934 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
935 | |
|
|
936 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
937 | } |
|
|
938 | break; |
|
|
939 | |
|
|
940 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
941 | { |
|
|
942 | if (ecb_expect_false (!dec->shareable)) |
|
|
943 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
944 | |
|
|
945 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
946 | { |
|
|
947 | sv = newSV (0); |
|
|
948 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
949 | |
|
|
950 | SV *osv = decode_sv (dec); |
|
|
951 | sv_setsv (sv, osv); |
|
|
952 | SvREFCNT_dec_NN (osv); |
|
|
953 | } |
|
|
954 | else |
|
|
955 | { |
|
|
956 | av_push (dec->shareable, &PL_sv_undef); |
|
|
957 | int idx = AvFILLp (dec->shareable); |
|
|
958 | sv = decode_sv (dec); |
|
|
959 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
960 | } |
|
|
961 | } |
|
|
962 | break; |
|
|
963 | |
|
|
964 | case CBOR_TAG_VALUE_SHAREDREF: |
|
|
965 | { |
|
|
966 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
967 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
968 | |
|
|
969 | UV idx = decode_uint (dec); |
|
|
970 | |
|
|
971 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
|
|
972 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
973 | |
|
|
974 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
975 | |
|
|
976 | if (sv == &PL_sv_undef) |
|
|
977 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
|
|
978 | } |
|
|
979 | break; |
|
|
980 | |
|
|
981 | case CBOR_TAG_PERL_OBJECT: |
|
|
982 | { |
|
|
983 | sv = decode_sv (dec); |
|
|
984 | |
694 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
985 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
695 | ERR ("corrupted CBOR data (non-array perl object)"); |
986 | ERR ("corrupted CBOR data (non-array perl object)"); |
696 | |
987 | |
697 | AV *av = (AV *)SvRV (sv); |
988 | AV *av = (AV *)SvRV (sv); |
698 | int len = av_len (av) + 1; |
989 | int len = av_len (av) + 1; |
699 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
990 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
700 | |
991 | |
701 | if (!stash) |
992 | if (!stash) |
702 | ERR ("cannot decode perl-object (package does not exist)"); |
993 | ERR ("cannot decode perl-object (package does not exist)"); |
703 | |
994 | |
704 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
995 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
705 | |
996 | |
706 | if (!method) |
997 | if (!method) |
707 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
998 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
708 | |
999 | |
709 | dSP; |
1000 | dSP; |
710 | |
1001 | |
711 | ENTER; SAVETMPS; PUSHMARK (SP); |
1002 | ENTER; SAVETMPS; |
|
|
1003 | PUSHMARK (SP); |
712 | EXTEND (SP, len + 1); |
1004 | EXTEND (SP, len + 1); |
713 | // we re-bless the reference to get overload and other niceties right |
1005 | // we re-bless the reference to get overload and other niceties right |
714 | PUSHs (*av_fetch (av, 0, 1)); |
1006 | PUSHs (*av_fetch (av, 0, 1)); |
715 | PUSHs (sv_cbor); |
1007 | PUSHs (sv_cbor); |
716 | |
1008 | |
717 | int i; |
1009 | int i; |
718 | |
1010 | |
719 | for (i = 1; i < len; ++i) |
1011 | for (i = 1; i < len; ++i) |
720 | PUSHs (*av_fetch (av, i, 1)); |
1012 | PUSHs (*av_fetch (av, i, 1)); |
721 | |
1013 | |
722 | PUTBACK; |
1014 | PUTBACK; |
723 | call_sv ((SV *)GvCV (method), G_SCALAR); |
1015 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
724 | SPAGAIN; |
1016 | SPAGAIN; |
725 | |
1017 | |
|
|
1018 | if (SvTRUE (ERRSV)) |
|
|
1019 | { |
|
|
1020 | FREETMPS; LEAVE; |
|
|
1021 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
1022 | } |
|
|
1023 | |
726 | SvREFCNT_dec (sv); |
1024 | SvREFCNT_dec (sv); |
727 | sv = SvREFCNT_inc (POPs); |
1025 | sv = SvREFCNT_inc (POPs); |
728 | |
1026 | |
729 | PUTBACK; |
1027 | PUTBACK; |
730 | |
1028 | |
731 | FREETMPS; LEAVE; |
1029 | FREETMPS; LEAVE; |
|
|
1030 | } |
|
|
1031 | break; |
732 | |
1032 | |
733 | return sv; |
1033 | default: |
734 | } |
1034 | { |
735 | else |
1035 | sv = decode_sv (dec); |
736 | { |
1036 | |
|
|
1037 | dSP; |
|
|
1038 | ENTER; SAVETMPS; |
|
|
1039 | SAVESTACK_POS (); |
|
|
1040 | PUSHMARK (SP); |
|
|
1041 | EXTEND (SP, 2); |
|
|
1042 | PUSHs (newSVuv (tag)); |
|
|
1043 | PUSHs (sv); |
|
|
1044 | |
|
|
1045 | PUTBACK; |
|
|
1046 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
1047 | SPAGAIN; |
|
|
1048 | |
|
|
1049 | if (SvTRUE (ERRSV)) |
|
|
1050 | { |
|
|
1051 | FREETMPS; LEAVE; |
|
|
1052 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | if (count) |
|
|
1056 | { |
|
|
1057 | SvREFCNT_dec (sv); |
|
|
1058 | sv = SvREFCNT_inc (POPs); |
|
|
1059 | } |
|
|
1060 | else |
|
|
1061 | { |
737 | AV *av = newAV (); |
1062 | AV *av = newAV (); |
738 | av_push (av, newSVuv (tag)); |
1063 | av_push (av, newSVuv (tag)); |
739 | av_push (av, sv); |
1064 | av_push (av, sv); |
740 | |
1065 | |
741 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1066 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
742 | ? cbor_tagged_stash |
1067 | ? cbor_tagged_stash |
743 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
1068 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
744 | |
|
|
745 | return sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
1069 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
1070 | } |
|
|
1071 | |
|
|
1072 | PUTBACK; |
|
|
1073 | |
|
|
1074 | FREETMPS; LEAVE; |
|
|
1075 | } |
|
|
1076 | break; |
746 | } |
1077 | } |
|
|
1078 | |
|
|
1079 | return sv; |
747 | |
1080 | |
748 | fail: |
1081 | fail: |
749 | SvREFCNT_dec (sv); |
1082 | SvREFCNT_dec (sv); |
750 | return &PL_sv_undef; |
1083 | return &PL_sv_undef; |
751 | } |
1084 | } |
… | |
… | |
753 | static SV * |
1086 | static SV * |
754 | decode_sv (dec_t *dec) |
1087 | decode_sv (dec_t *dec) |
755 | { |
1088 | { |
756 | WANT (1); |
1089 | WANT (1); |
757 | |
1090 | |
758 | switch (*dec->cur >> 5) |
1091 | switch (*dec->cur >> MAJOR_SHIFT) |
759 | { |
1092 | { |
760 | case 0: // unsigned int |
1093 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
761 | return newSVuv (decode_uint (dec)); |
1094 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
762 | case 1: // negative int |
1095 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
763 | return newSViv (-1 - (IV)decode_uint (dec)); |
1096 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
764 | case 2: // octet string |
1097 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
765 | return decode_str (dec, 0); |
1098 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
766 | case 3: // utf-8 string |
1099 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
767 | return decode_str (dec, 1); |
1100 | |
768 | case 4: // array |
1101 | case MAJOR_MISC >> MAJOR_SHIFT: |
769 | return decode_av (dec); |
|
|
770 | case 5: // map |
|
|
771 | return decode_hv (dec); |
|
|
772 | case 6: // tag |
|
|
773 | return decode_tagged (dec); |
|
|
774 | case 7: // misc |
|
|
775 | switch (*dec->cur++ & 31) |
1102 | switch (*dec->cur++ & MINOR_MASK) |
776 | { |
1103 | { |
777 | case 20: |
1104 | case SIMPLE_FALSE: |
778 | #if CBOR_SLOW |
1105 | #if CBOR_SLOW |
779 | types_false = get_bool ("Types::Serialiser::false"); |
1106 | types_false = get_bool ("Types::Serialiser::false"); |
780 | #endif |
1107 | #endif |
781 | return newSVsv (types_false); |
1108 | return newSVsv (types_false); |
782 | case 21: |
1109 | case SIMPLE_TRUE: |
783 | #if CBOR_SLOW |
1110 | #if CBOR_SLOW |
784 | types_true = get_bool ("Types::Serialiser::true"); |
1111 | types_true = get_bool ("Types::Serialiser::true"); |
785 | #endif |
1112 | #endif |
786 | return newSVsv (types_true); |
1113 | return newSVsv (types_true); |
787 | case 22: |
1114 | case SIMPLE_NULL: |
788 | return newSVsv (&PL_sv_undef); |
1115 | return newSVsv (&PL_sv_undef); |
789 | case 23: |
1116 | case SIMPLE_UNDEF: |
790 | #if CBOR_SLOW |
1117 | #if CBOR_SLOW |
791 | types_error = get_bool ("Types::Serialiser::error"); |
1118 | types_error = get_bool ("Types::Serialiser::error"); |
792 | #endif |
1119 | #endif |
793 | return newSVsv (types_error); |
1120 | return newSVsv (types_error); |
794 | |
1121 | |
795 | case 25: |
1122 | case MISC_FLOAT16: |
796 | { |
1123 | { |
797 | WANT (2); |
1124 | WANT (2); |
798 | |
1125 | |
799 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1126 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
800 | dec->cur += 2; |
1127 | dec->cur += 2; |
801 | |
1128 | |
802 | return newSVnv (ecb_binary16_to_float (fp)); |
1129 | return newSVnv (ecb_binary16_to_float (fp)); |
803 | } |
1130 | } |
804 | |
1131 | |
805 | case 26: |
1132 | case MISC_FLOAT32: |
806 | { |
1133 | { |
807 | uint32_t fp; |
1134 | uint32_t fp; |
808 | WANT (4); |
1135 | WANT (4); |
809 | memcpy (&fp, dec->cur, 4); |
1136 | memcpy (&fp, dec->cur, 4); |
810 | dec->cur += 4; |
1137 | dec->cur += 4; |
… | |
… | |
813 | fp = ecb_bswap32 (fp); |
1140 | fp = ecb_bswap32 (fp); |
814 | |
1141 | |
815 | return newSVnv (ecb_binary32_to_float (fp)); |
1142 | return newSVnv (ecb_binary32_to_float (fp)); |
816 | } |
1143 | } |
817 | |
1144 | |
818 | case 27: |
1145 | case MISC_FLOAT64: |
819 | { |
1146 | { |
820 | uint64_t fp; |
1147 | uint64_t fp; |
821 | WANT (8); |
1148 | WANT (8); |
822 | memcpy (&fp, dec->cur, 8); |
1149 | memcpy (&fp, dec->cur, 8); |
823 | dec->cur += 8; |
1150 | dec->cur += 8; |
… | |
… | |
826 | fp = ecb_bswap64 (fp); |
1153 | fp = ecb_bswap64 (fp); |
827 | |
1154 | |
828 | return newSVnv (ecb_binary64_to_double (fp)); |
1155 | return newSVnv (ecb_binary64_to_double (fp)); |
829 | } |
1156 | } |
830 | |
1157 | |
831 | // 0..19 unassigned |
1158 | // 0..19 unassigned simple |
832 | // 24 reserved + unassigned (reserved values are not encodable) |
1159 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1160 | // 28-30 unassigned misc |
|
|
1161 | // 31 break code |
833 | default: |
1162 | default: |
834 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1163 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
835 | } |
1164 | } |
836 | |
1165 | |
837 | break; |
1166 | break; |
838 | } |
1167 | } |
839 | |
1168 | |
… | |
… | |
842 | } |
1171 | } |
843 | |
1172 | |
844 | static SV * |
1173 | static SV * |
845 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1174 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
846 | { |
1175 | { |
847 | dec_t dec; |
1176 | dec_t dec = { 0 }; |
848 | SV *sv; |
1177 | SV *sv; |
|
|
1178 | STRLEN len; |
|
|
1179 | char *data = SvPVbyte (string, len); |
849 | |
1180 | |
850 | /* work around bugs in 5.10 where manipulating magic values |
|
|
851 | * makes perl ignore the magic in subsequent accesses. |
|
|
852 | * also make a copy of non-PV values, to get them into a clean |
|
|
853 | * state (SvPV should do that, but it's buggy, see below). |
|
|
854 | */ |
|
|
855 | /*SvGETMAGIC (string);*/ |
|
|
856 | if (SvMAGICAL (string) || !SvPOK (string)) |
|
|
857 | string = sv_2mortal (newSVsv (string)); |
|
|
858 | |
|
|
859 | SvUPGRADE (string, SVt_PV); |
|
|
860 | |
|
|
861 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
862 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
863 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
864 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
865 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
866 | * and hope for the best. |
|
|
867 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
868 | * assertion business is seriously broken, try yet another workaround |
|
|
869 | * for the broken -DDEBUGGING. |
|
|
870 | */ |
|
|
871 | { |
|
|
872 | #ifdef DEBUGGING |
|
|
873 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
874 | #else |
|
|
875 | STRLEN offset = SvCUR (string); |
|
|
876 | #endif |
|
|
877 | |
|
|
878 | if (offset > cbor->max_size && cbor->max_size) |
1181 | if (len > cbor->max_size && cbor->max_size) |
879 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1182 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
880 | (unsigned long)SvCUR (string), (unsigned long)cbor->max_size); |
1183 | (unsigned long)len, (unsigned long)cbor->max_size); |
881 | } |
|
|
882 | |
|
|
883 | sv_utf8_downgrade (string, 0); |
|
|
884 | |
1184 | |
885 | dec.cbor = *cbor; |
1185 | dec.cbor = *cbor; |
886 | dec.cur = (U8 *)SvPVX (string); |
1186 | dec.cur = (U8 *)data; |
887 | dec.end = (U8 *)SvEND (string); |
1187 | dec.end = (U8 *)data + len; |
888 | dec.err = 0; |
|
|
889 | dec.depth = 0; |
|
|
890 | |
1188 | |
891 | sv = decode_sv (&dec); |
1189 | sv = decode_sv (&dec); |
892 | |
1190 | |
893 | if (offset_return) |
1191 | if (offset_return) |
894 | *offset_return = dec.cur; |
1192 | *offset_return = dec.cur; |
… | |
… | |
897 | if (dec.cur != dec.end && !dec.err) |
1195 | if (dec.cur != dec.end && !dec.err) |
898 | dec.err = "garbage after CBOR object"; |
1196 | dec.err = "garbage after CBOR object"; |
899 | |
1197 | |
900 | if (dec.err) |
1198 | if (dec.err) |
901 | { |
1199 | { |
|
|
1200 | if (dec.shareable) |
|
|
1201 | { |
|
|
1202 | // need to break cyclic links, which whould all be in shareable |
|
|
1203 | int i; |
|
|
1204 | SV **svp; |
|
|
1205 | |
|
|
1206 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1207 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1208 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1209 | } |
|
|
1210 | |
902 | SvREFCNT_dec (sv); |
1211 | SvREFCNT_dec (sv); |
903 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1212 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
904 | } |
1213 | } |
905 | |
1214 | |
906 | sv = sv_2mortal (sv); |
1215 | sv = sv_2mortal (sv); |
907 | |
1216 | |
908 | return sv; |
1217 | return sv; |
909 | } |
1218 | } |
910 | |
1219 | |
|
|
1220 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1221 | // incremental parser |
|
|
1222 | |
|
|
1223 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1224 | |
|
|
1225 | // returns 0 for notyet, 1 for success or error |
|
|
1226 | static int |
|
|
1227 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1228 | { |
|
|
1229 | STRLEN cur; |
|
|
1230 | SvPV (cborstr, cur); |
|
|
1231 | |
|
|
1232 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1233 | { |
|
|
1234 | // table of integer count bytes |
|
|
1235 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1236 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1237 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1238 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1239 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1240 | }; |
|
|
1241 | |
|
|
1242 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1243 | U8 m = *p & MINOR_MASK; |
|
|
1244 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1245 | I8 ilen = incr_len[m]; |
|
|
1246 | |
|
|
1247 | self->incr_need = self->incr_pos + 1; |
|
|
1248 | |
|
|
1249 | if (ecb_expect_false (ilen < 0)) |
|
|
1250 | { |
|
|
1251 | if (m != MINOR_INDEF) |
|
|
1252 | return 1; // error |
|
|
1253 | |
|
|
1254 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1255 | { |
|
|
1256 | if (count >= 0) |
|
|
1257 | return 1; // error |
|
|
1258 | |
|
|
1259 | count = 1; |
|
|
1260 | } |
|
|
1261 | else |
|
|
1262 | { |
|
|
1263 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1264 | count = -1; |
|
|
1265 | } |
|
|
1266 | } |
|
|
1267 | else |
|
|
1268 | { |
|
|
1269 | self->incr_need += ilen; |
|
|
1270 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1271 | return 0; |
|
|
1272 | |
|
|
1273 | int major = *p >> MAJOR_SHIFT; |
|
|
1274 | |
|
|
1275 | switch (major) |
|
|
1276 | { |
|
|
1277 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1278 | ++count; // tags merely prefix another value |
|
|
1279 | break; |
|
|
1280 | |
|
|
1281 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1282 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1283 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1284 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1285 | { |
|
|
1286 | UV len; |
|
|
1287 | |
|
|
1288 | if (ecb_expect_false (ilen)) |
|
|
1289 | { |
|
|
1290 | len = 0; |
|
|
1291 | |
|
|
1292 | do { |
|
|
1293 | len = (len << 8) | *++p; |
|
|
1294 | } while (--ilen); |
|
|
1295 | } |
|
|
1296 | else |
|
|
1297 | len = m; |
|
|
1298 | |
|
|
1299 | switch (major) |
|
|
1300 | { |
|
|
1301 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1302 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1303 | self->incr_need += len; |
|
|
1304 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1305 | return 0; |
|
|
1306 | |
|
|
1307 | break; |
|
|
1308 | |
|
|
1309 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1310 | len <<= 1; |
|
|
1311 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1312 | if (len) |
|
|
1313 | { |
|
|
1314 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1315 | count = len + 1; |
|
|
1316 | } |
|
|
1317 | break; |
|
|
1318 | } |
|
|
1319 | } |
|
|
1320 | } |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | self->incr_pos = self->incr_need; |
|
|
1324 | |
|
|
1325 | if (count > 0) |
|
|
1326 | { |
|
|
1327 | while (!--count) |
|
|
1328 | { |
|
|
1329 | if (!AvFILLp (self->incr_count)) |
|
|
1330 | return 1; // done |
|
|
1331 | |
|
|
1332 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1333 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1337 | } |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | return 0; |
|
|
1341 | } |
|
|
1342 | |
|
|
1343 | |
911 | ///////////////////////////////////////////////////////////////////////////// |
1344 | ///////////////////////////////////////////////////////////////////////////// |
912 | // XS interface functions |
1345 | // XS interface functions |
913 | |
1346 | |
914 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1347 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
915 | |
1348 | |
… | |
… | |
922 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1355 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
923 | |
1356 | |
924 | types_true = get_bool ("Types::Serialiser::true" ); |
1357 | types_true = get_bool ("Types::Serialiser::true" ); |
925 | types_false = get_bool ("Types::Serialiser::false"); |
1358 | types_false = get_bool ("Types::Serialiser::false"); |
926 | types_error = get_bool ("Types::Serialiser::error"); |
1359 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1360 | |
|
|
1361 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
927 | |
1362 | |
928 | sv_cbor = newSVpv ("CBOR", 0); |
1363 | sv_cbor = newSVpv ("CBOR", 0); |
929 | SvREADONLY_on (sv_cbor); |
1364 | SvREADONLY_on (sv_cbor); |
930 | } |
1365 | } |
931 | |
1366 | |
… | |
… | |
952 | |
1387 | |
953 | void shrink (CBOR *self, int enable = 1) |
1388 | void shrink (CBOR *self, int enable = 1) |
954 | ALIAS: |
1389 | ALIAS: |
955 | shrink = F_SHRINK |
1390 | shrink = F_SHRINK |
956 | allow_unknown = F_ALLOW_UNKNOWN |
1391 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1392 | allow_sharing = F_ALLOW_SHARING |
|
|
1393 | allow_cycles = F_ALLOW_CYCLES |
|
|
1394 | pack_strings = F_PACK_STRINGS |
|
|
1395 | validate_utf8 = F_VALIDATE_UTF8 |
957 | PPCODE: |
1396 | PPCODE: |
958 | { |
1397 | { |
959 | if (enable) |
1398 | if (enable) |
960 | self->flags |= ix; |
1399 | self->flags |= ix; |
961 | else |
1400 | else |
… | |
… | |
966 | |
1405 | |
967 | void get_shrink (CBOR *self) |
1406 | void get_shrink (CBOR *self) |
968 | ALIAS: |
1407 | ALIAS: |
969 | get_shrink = F_SHRINK |
1408 | get_shrink = F_SHRINK |
970 | get_allow_unknown = F_ALLOW_UNKNOWN |
1409 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1410 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1411 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1412 | get_pack_strings = F_PACK_STRINGS |
|
|
1413 | get_validate_utf8 = F_VALIDATE_UTF8 |
971 | PPCODE: |
1414 | PPCODE: |
972 | XPUSHs (boolSV (self->flags & ix)); |
1415 | XPUSHs (boolSV (self->flags & ix)); |
973 | |
1416 | |
974 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1417 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
975 | PPCODE: |
1418 | PPCODE: |
… | |
… | |
991 | CODE: |
1434 | CODE: |
992 | RETVAL = self->max_size; |
1435 | RETVAL = self->max_size; |
993 | OUTPUT: |
1436 | OUTPUT: |
994 | RETVAL |
1437 | RETVAL |
995 | |
1438 | |
996 | #if 0 //TODO |
1439 | void filter (CBOR *self, SV *filter = 0) |
997 | |
|
|
998 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
999 | PPCODE: |
1440 | PPCODE: |
1000 | { |
|
|
1001 | SvREFCNT_dec (self->cb_object); |
1441 | SvREFCNT_dec (self->filter); |
1002 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1442 | self->filter = filter ? newSVsv (filter) : filter; |
1003 | |
|
|
1004 | XPUSHs (ST (0)); |
1443 | XPUSHs (ST (0)); |
1005 | } |
|
|
1006 | |
1444 | |
1007 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
1445 | SV *get_filter (CBOR *self) |
1008 | PPCODE: |
1446 | CODE: |
1009 | { |
1447 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1010 | if (!self->cb_sk_object) |
1448 | OUTPUT: |
1011 | self->cb_sk_object = newHV (); |
1449 | RETVAL |
1012 | |
|
|
1013 | if (SvOK (cb)) |
|
|
1014 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1015 | else |
|
|
1016 | { |
|
|
1017 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1018 | |
|
|
1019 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1020 | { |
|
|
1021 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1022 | self->cb_sk_object = 0; |
|
|
1023 | } |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | XPUSHs (ST (0)); |
|
|
1027 | } |
|
|
1028 | |
|
|
1029 | #endif |
|
|
1030 | |
1450 | |
1031 | void encode (CBOR *self, SV *scalar) |
1451 | void encode (CBOR *self, SV *scalar) |
1032 | PPCODE: |
1452 | PPCODE: |
1033 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1453 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1034 | XPUSHs (scalar); |
1454 | XPUSHs (scalar); |
… | |
… | |
1047 | EXTEND (SP, 2); |
1467 | EXTEND (SP, 2); |
1048 | PUSHs (sv); |
1468 | PUSHs (sv); |
1049 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1469 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1050 | } |
1470 | } |
1051 | |
1471 | |
1052 | #if 0 |
1472 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1473 | ALIAS: |
|
|
1474 | incr_parse_multiple = 1 |
|
|
1475 | PPCODE: |
|
|
1476 | { |
|
|
1477 | if (SvUTF8 (cborstr)) |
|
|
1478 | sv_utf8_downgrade (cborstr, 0); |
|
|
1479 | |
|
|
1480 | if (!self->incr_count) |
|
|
1481 | { |
|
|
1482 | self->incr_count = newAV (); |
|
|
1483 | self->incr_pos = 0; |
|
|
1484 | self->incr_need = 1; |
|
|
1485 | |
|
|
1486 | av_push (self->incr_count, newSViv (1)); |
|
|
1487 | } |
|
|
1488 | |
|
|
1489 | do |
|
|
1490 | { |
|
|
1491 | if (!incr_parse (self, cborstr)) |
|
|
1492 | { |
|
|
1493 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1494 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1495 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1496 | |
|
|
1497 | break; |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | SV *sv; |
|
|
1501 | char *offset; |
|
|
1502 | |
|
|
1503 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1504 | XPUSHs (sv); |
|
|
1505 | |
|
|
1506 | sv_chop (cborstr, offset); |
|
|
1507 | |
|
|
1508 | av_clear (self->incr_count); |
|
|
1509 | av_push (self->incr_count, newSViv (1)); |
|
|
1510 | |
|
|
1511 | self->incr_pos = 0; |
|
|
1512 | self->incr_need = self->incr_pos + 1; |
|
|
1513 | } |
|
|
1514 | while (ix); |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | void incr_reset (CBOR *self) |
|
|
1518 | CODE: |
|
|
1519 | { |
|
|
1520 | SvREFCNT_dec (self->incr_count); |
|
|
1521 | self->incr_count = 0; |
|
|
1522 | } |
1053 | |
1523 | |
1054 | void DESTROY (CBOR *self) |
1524 | void DESTROY (CBOR *self) |
1055 | CODE: |
1525 | PPCODE: |
1056 | SvREFCNT_dec (self->cb_sk_object); |
1526 | cbor_free (self); |
1057 | SvREFCNT_dec (self->cb_object); |
|
|
1058 | |
|
|
1059 | #endif |
|
|
1060 | |
1527 | |
1061 | PROTOTYPES: ENABLE |
1528 | PROTOTYPES: ENABLE |
1062 | |
1529 | |
1063 | void encode_cbor (SV *scalar) |
1530 | void encode_cbor (SV *scalar) |
|
|
1531 | ALIAS: |
|
|
1532 | encode_cbor = 0 |
|
|
1533 | encode_cbor_sharing = F_ALLOW_SHARING |
1064 | PPCODE: |
1534 | PPCODE: |
1065 | { |
1535 | { |
1066 | CBOR cbor; |
1536 | CBOR cbor; |
1067 | cbor_init (&cbor); |
1537 | cbor_init (&cbor); |
|
|
1538 | cbor.flags |= ix; |
1068 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1539 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1069 | XPUSHs (scalar); |
1540 | XPUSHs (scalar); |
1070 | } |
1541 | } |
1071 | |
1542 | |
1072 | void decode_cbor (SV *cborstr) |
1543 | void decode_cbor (SV *cborstr) |