… | |
… | |
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 | |
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15 | // compatibility with perl <5.18 |
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16 | #ifndef HvNAMELEN_get |
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17 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
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18 | #endif |
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19 | #ifndef HvNAMELEN |
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20 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
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21 | #endif |
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22 | #ifndef HvNAMEUTF8 |
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23 | # define HvNAMEUTF8(hv) 0 |
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24 | #endif |
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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 | }; |
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65 | |
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66 | // known tags |
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67 | enum cbor_tag |
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68 | { |
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69 | // extensions |
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70 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
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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 |
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77 | |
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78 | // rfc7049 |
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79 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
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80 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
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81 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
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82 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
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83 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
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84 | CBOR_TAG_BIGFLOAT = 5, // array |
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85 | |
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86 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
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87 | CBOR_TAG_CONV_B64 = 22, // base64, any |
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88 | CBOR_TAG_CONV_HEX = 23, // base16, any |
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89 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
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90 | |
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91 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
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92 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
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93 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
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94 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
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95 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
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96 | |
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97 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
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98 | }; |
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99 | |
14 | #define F_SHRINK 0x00000200UL |
100 | #define F_SHRINK 0x00000001UL |
15 | #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 |
16 | |
106 | |
17 | #define INIT_SIZE 32 // initial scalar size to be allocated |
107 | #define INIT_SIZE 32 // initial scalar size to be allocated |
18 | |
108 | |
19 | #define SB do { |
109 | #define SB do { |
20 | #define SE } while (0) |
110 | #define SE } while (0) |
… | |
… | |
31 | #else |
121 | #else |
32 | # define CBOR_SLOW 0 |
122 | # define CBOR_SLOW 0 |
33 | # define CBOR_STASH cbor_stash |
123 | # define CBOR_STASH cbor_stash |
34 | #endif |
124 | #endif |
35 | |
125 | |
36 | static HV *cbor_stash, *cbor_boolean_stash, *cbor_tagged_stash; // CBOR::XS:: |
126 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
37 | static SV *cbor_true, *cbor_false; |
127 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
38 | |
128 | |
39 | typedef struct { |
129 | typedef struct { |
40 | U32 flags; |
130 | U32 flags; |
41 | U32 max_depth; |
131 | U32 max_depth; |
42 | 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. |
43 | } CBOR; |
139 | } CBOR; |
44 | |
140 | |
45 | ecb_inline void |
141 | ecb_inline void |
46 | cbor_init (CBOR *cbor) |
142 | cbor_init (CBOR *cbor) |
47 | { |
143 | { |
48 | Zero (cbor, 1, CBOR); |
144 | Zero (cbor, 1, CBOR); |
49 | cbor->max_depth = 512; |
145 | cbor->max_depth = 512; |
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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); |
50 | } |
153 | } |
51 | |
154 | |
52 | ///////////////////////////////////////////////////////////////////////////// |
155 | ///////////////////////////////////////////////////////////////////////////// |
53 | // utility functions |
156 | // utility functions |
54 | |
157 | |
… | |
… | |
76 | SvPV_renew (sv, SvCUR (sv) + 1); |
179 | SvPV_renew (sv, SvCUR (sv) + 1); |
77 | #endif |
180 | #endif |
78 | } |
181 | } |
79 | } |
182 | } |
80 | |
183 | |
81 | ///////////////////////////////////////////////////////////////////////////// |
184 | // minimum length of a string to be registered for stringref |
82 | // fp hell |
185 | ecb_inline int |
83 | |
186 | minimum_string_length (UV idx) |
84 | //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 | } |
85 | |
198 | |
86 | ///////////////////////////////////////////////////////////////////////////// |
199 | ///////////////////////////////////////////////////////////////////////////// |
87 | // encoder |
200 | // encoder |
88 | |
201 | |
89 | // structure used for encoding CBOR |
202 | // structure used for encoding CBOR |
… | |
… | |
92 | char *cur; // SvPVX (sv) + current output position |
205 | char *cur; // SvPVX (sv) + current output position |
93 | char *end; // SvEND (sv) |
206 | char *end; // SvEND (sv) |
94 | SV *sv; // result scalar |
207 | SV *sv; // result scalar |
95 | CBOR cbor; |
208 | CBOR cbor; |
96 | 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; |
97 | } enc_t; |
214 | } enc_t; |
98 | |
215 | |
99 | ecb_inline void |
216 | ecb_inline void |
100 | need (enc_t *enc, STRLEN len) |
217 | need (enc_t *enc, STRLEN len) |
101 | { |
218 | { |
… | |
… | |
118 | static void |
235 | static void |
119 | encode_uint (enc_t *enc, int major, UV len) |
236 | encode_uint (enc_t *enc, int major, UV len) |
120 | { |
237 | { |
121 | need (enc, 9); |
238 | need (enc, 9); |
122 | |
239 | |
123 | if (len < 24) |
240 | if (ecb_expect_true (len < LENGTH_EXT1)) |
124 | *enc->cur++ = major | len; |
241 | *enc->cur++ = major | len; |
125 | else if (len <= 0xff) |
242 | else if (ecb_expect_true (len <= 0xffU)) |
126 | { |
243 | { |
127 | *enc->cur++ = major | 24; |
244 | *enc->cur++ = major | LENGTH_EXT1; |
128 | *enc->cur++ = len; |
245 | *enc->cur++ = len; |
129 | } |
246 | } |
130 | else if (len <= 0xffff) |
247 | else if (len <= 0xffffU) |
131 | { |
248 | { |
132 | *enc->cur++ = major | 25; |
249 | *enc->cur++ = major | LENGTH_EXT2; |
133 | *enc->cur++ = len >> 8; |
250 | *enc->cur++ = len >> 8; |
134 | *enc->cur++ = len; |
251 | *enc->cur++ = len; |
135 | } |
252 | } |
136 | else if (len <= 0xffffffff) |
253 | else if (len <= 0xffffffffU) |
137 | { |
254 | { |
138 | *enc->cur++ = major | 26; |
255 | *enc->cur++ = major | LENGTH_EXT4; |
139 | *enc->cur++ = len >> 24; |
256 | *enc->cur++ = len >> 24; |
140 | *enc->cur++ = len >> 16; |
257 | *enc->cur++ = len >> 16; |
141 | *enc->cur++ = len >> 8; |
258 | *enc->cur++ = len >> 8; |
142 | *enc->cur++ = len; |
259 | *enc->cur++ = len; |
143 | } |
260 | } |
144 | else |
261 | else |
145 | { |
262 | { |
146 | *enc->cur++ = major | 27; |
263 | *enc->cur++ = major | LENGTH_EXT8; |
147 | *enc->cur++ = len >> 56; |
264 | *enc->cur++ = len >> 56; |
148 | *enc->cur++ = len >> 48; |
265 | *enc->cur++ = len >> 48; |
149 | *enc->cur++ = len >> 40; |
266 | *enc->cur++ = len >> 40; |
150 | *enc->cur++ = len >> 32; |
267 | *enc->cur++ = len >> 32; |
151 | *enc->cur++ = len >> 24; |
268 | *enc->cur++ = len >> 24; |
… | |
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153 | *enc->cur++ = len >> 8; |
270 | *enc->cur++ = len >> 8; |
154 | *enc->cur++ = len; |
271 | *enc->cur++ = len; |
155 | } |
272 | } |
156 | } |
273 | } |
157 | |
274 | |
158 | 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 |
159 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
282 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
160 | { |
283 | { |
161 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
284 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
162 | need (enc, len); |
285 | need (enc, len); |
163 | memcpy (enc->cur, str, len); |
286 | memcpy (enc->cur, str, len); |
164 | enc->cur += len; |
287 | enc->cur += len; |
165 | } |
288 | } |
166 | |
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 | } |
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314 | |
167 | static void encode_sv (enc_t *enc, SV *sv); |
315 | static void encode_sv (enc_t *enc, SV *sv); |
168 | |
316 | |
169 | static void |
317 | static void |
170 | encode_av (enc_t *enc, AV *av) |
318 | encode_av (enc_t *enc, AV *av) |
171 | { |
319 | { |
… | |
… | |
174 | if (enc->depth >= enc->cbor.max_depth) |
322 | if (enc->depth >= enc->cbor.max_depth) |
175 | croak (ERR_NESTING_EXCEEDED); |
323 | croak (ERR_NESTING_EXCEEDED); |
176 | |
324 | |
177 | ++enc->depth; |
325 | ++enc->depth; |
178 | |
326 | |
179 | encode_uint (enc, 0x80, len + 1); |
327 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
180 | |
328 | |
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329 | if (SvMAGICAL (av)) |
181 | for (i = 0; i <= len; ++i) |
330 | for (i = 0; i <= len; ++i) |
182 | { |
331 | { |
183 | SV **svp = av_fetch (av, i, 0); |
332 | SV **svp = av_fetch (av, i, 0); |
184 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
333 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
185 | } |
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 | } |
186 | |
341 | |
187 | --enc->depth; |
342 | --enc->depth; |
188 | } |
343 | } |
189 | |
344 | |
190 | static void |
345 | static void |
… | |
… | |
199 | |
354 | |
200 | int pairs = hv_iterinit (hv); |
355 | int pairs = hv_iterinit (hv); |
201 | int mg = SvMAGICAL (hv); |
356 | int mg = SvMAGICAL (hv); |
202 | |
357 | |
203 | if (mg) |
358 | if (mg) |
204 | encode_ch (enc, 0xa0 | 31); |
359 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
205 | else |
360 | else |
206 | encode_uint (enc, 0xa0, pairs); |
361 | encode_uint (enc, MAJOR_MAP, pairs); |
207 | |
362 | |
208 | while ((he = hv_iternext (hv))) |
363 | while ((he = hv_iternext (hv))) |
209 | { |
364 | { |
210 | if (HeKLEN (he) == HEf_SVKEY) |
365 | if (HeKLEN (he) == HEf_SVKEY) |
211 | encode_sv (enc, HeSVKEY (he)); |
366 | encode_sv (enc, HeSVKEY (he)); |
212 | else |
367 | else |
213 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
368 | encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
214 | |
369 | |
215 | 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)); |
216 | } |
371 | } |
217 | |
372 | |
218 | if (mg) |
373 | if (mg) |
219 | encode_ch (enc, 0xe0 | 31); |
374 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
220 | |
375 | |
221 | --enc->depth; |
376 | --enc->depth; |
222 | } |
377 | } |
223 | |
378 | |
224 | // encode objects, arrays and special \0=false and \1=true values. |
379 | // encode objects, arrays and special \0=false and \1=true values. |
225 | static void |
380 | static void |
226 | encode_rv (enc_t *enc, SV *sv) |
381 | encode_rv (enc_t *enc, SV *sv) |
227 | { |
382 | { |
228 | svtype svt; |
|
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229 | |
|
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230 | SvGETMAGIC (sv); |
383 | SvGETMAGIC (sv); |
|
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384 | |
231 | svt = SvTYPE (sv); |
385 | svtype svt = SvTYPE (sv); |
232 | |
386 | |
233 | if (ecb_expect_false (SvOBJECT (sv))) |
387 | if (ecb_expect_false (SvOBJECT (sv))) |
234 | { |
388 | { |
235 | HV *boolean_stash = !CBOR_SLOW || cbor_boolean_stash |
389 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
236 | ? cbor_boolean_stash |
390 | ? types_boolean_stash |
237 | : gv_stashpv ("CBOR::XS::Boolean", 1); |
391 | : gv_stashpv ("Types::Serialiser::Boolean", 1); |
|
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392 | HV *error_stash = !CBOR_SLOW || types_error_stash |
|
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393 | ? types_error_stash |
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394 | : gv_stashpv ("Types::Serialiser::Error", 1); |
238 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
395 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
239 | ? cbor_tagged_stash |
396 | ? cbor_tagged_stash |
240 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
397 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
241 | |
398 | |
|
|
399 | HV *stash = SvSTASH (sv); |
|
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400 | |
242 | if (SvSTASH (sv) == boolean_stash) |
401 | if (stash == boolean_stash) |
243 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
402 | { |
|
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403 | encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
|
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404 | return; |
|
|
405 | } |
|
|
406 | else if (stash == error_stash) |
|
|
407 | { |
|
|
408 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
409 | return; |
|
|
410 | } |
244 | else if (SvSTASH (sv) == tagged_stash) |
411 | else if (stash == tagged_stash) |
245 | { |
412 | { |
246 | if (svt != SVt_PVAV) |
413 | if (svt != SVt_PVAV) |
247 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
414 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
248 | |
415 | |
249 | encode_uint (enc, 0xc0, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
416 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
250 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
417 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
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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)) |
|
|
432 | { |
|
|
433 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
434 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
435 | return; |
251 | } |
436 | } |
252 | else |
437 | else |
253 | { |
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 | |
|
|
450 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
|
|
451 | { |
|
|
452 | dSP; |
|
|
453 | |
|
|
454 | ENTER; SAVETMPS; PUSHMARK (SP); |
254 | // we re-bless the reference to get overload and other niceties right |
455 | // we re-bless the reference to get overload and other niceties right |
255 | GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0); |
|
|
256 | |
|
|
257 | if (to_cbor) |
|
|
258 | { |
|
|
259 | dSP; |
|
|
260 | |
|
|
261 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
262 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
456 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
263 | |
457 | |
264 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
|
265 | PUTBACK; |
458 | PUTBACK; |
|
|
459 | // G_SCALAR ensures that return value is 1 |
266 | call_sv ((SV *)GvCV (to_cbor), G_SCALAR); |
460 | call_sv ((SV *)GvCV (method), G_SCALAR); |
267 | SPAGAIN; |
461 | SPAGAIN; |
268 | |
462 | |
269 | // catch this surprisingly common error |
463 | // catch this surprisingly common error |
270 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
464 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
271 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
465 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
272 | |
466 | |
273 | sv = POPs; |
467 | encode_sv (enc, POPs); |
|
|
468 | |
274 | PUTBACK; |
469 | PUTBACK; |
275 | |
470 | |
276 | encode_sv (enc, sv); |
|
|
277 | |
|
|
278 | FREETMPS; LEAVE; |
471 | FREETMPS; LEAVE; |
279 | } |
472 | } |
|
|
473 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
|
|
474 | { |
|
|
475 | dSP; |
|
|
476 | |
|
|
477 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
478 | EXTEND (SP, 2); |
|
|
479 | // we re-bless the reference to get overload and other niceties right |
|
|
480 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
|
|
481 | PUSHs (sv_cbor); |
|
|
482 | |
|
|
483 | PUTBACK; |
|
|
484 | int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
|
|
485 | SPAGAIN; |
|
|
486 | |
|
|
487 | // catch this surprisingly common error |
|
|
488 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
489 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
|
|
490 | |
|
|
491 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
|
|
492 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
|
|
493 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
|
|
494 | |
|
|
495 | while (count) |
|
|
496 | encode_sv (enc, SP[1 - count--]); |
|
|
497 | |
|
|
498 | PUTBACK; |
|
|
499 | |
|
|
500 | FREETMPS; LEAVE; |
|
|
501 | } |
280 | else |
502 | else |
281 | croak ("encountered object '%s', but no TO_CBOR method available on it", |
503 | croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
282 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
504 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
283 | } |
|
|
284 | } |
505 | } |
285 | else if (svt == SVt_PVHV) |
506 | else if (svt == SVt_PVHV) |
286 | encode_hv (enc, (HV *)sv); |
507 | encode_hv (enc, (HV *)sv); |
287 | else if (svt == SVt_PVAV) |
508 | else if (svt == SVt_PVAV) |
288 | encode_av (enc, (AV *)sv); |
509 | encode_av (enc, (AV *)sv); |
289 | else if (svt < SVt_PVAV) |
|
|
290 | { |
|
|
291 | STRLEN len = 0; |
|
|
292 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
293 | |
|
|
294 | if (len == 1 && *pv == '1') |
|
|
295 | encode_ch (enc, 0xe0 | 21); |
|
|
296 | else if (len == 1 && *pv == '0') |
|
|
297 | encode_ch (enc, 0xe0 | 20); |
|
|
298 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
299 | encode_ch (enc, 0xe0 | 23); |
|
|
300 | else |
|
|
301 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
302 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
303 | } |
|
|
304 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
305 | encode_ch (enc, 0xe0 | 23); |
|
|
306 | else |
510 | else |
307 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
511 | { |
308 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
512 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
513 | encode_sv (enc, sv); |
|
|
514 | } |
309 | } |
515 | } |
310 | |
516 | |
311 | static void |
517 | static void |
312 | encode_nv (enc_t *enc, SV *sv) |
518 | encode_nv (enc_t *enc, SV *sv) |
313 | { |
519 | { |
314 | double nv = SvNVX (sv); |
520 | double nv = SvNVX (sv); |
315 | |
521 | |
316 | need (enc, 9); |
522 | need (enc, 9); |
317 | |
523 | |
318 | if (ecb_expect_false (nv == (U32)nv)) |
524 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
319 | encode_uint (enc, 0x00, (U32)nv); |
525 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
320 | //TODO: maybe I32? |
526 | //TODO: maybe I32? |
321 | else if (ecb_expect_false (nv == (float)nv)) |
527 | else if (ecb_expect_false (nv == (float)nv)) |
322 | { |
528 | { |
323 | uint32_t fp = ecb_float_to_binary32 (nv); |
529 | uint32_t fp = ecb_float_to_binary32 (nv); |
324 | |
530 | |
325 | *enc->cur++ = 0xe0 | 26; |
531 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
326 | |
532 | |
327 | if (!ecb_big_endian ()) |
533 | if (!ecb_big_endian ()) |
328 | fp = ecb_bswap32 (fp); |
534 | fp = ecb_bswap32 (fp); |
329 | |
535 | |
330 | memcpy (enc->cur, &fp, 4); |
536 | memcpy (enc->cur, &fp, 4); |
… | |
… | |
332 | } |
538 | } |
333 | else |
539 | else |
334 | { |
540 | { |
335 | uint64_t fp = ecb_double_to_binary64 (nv); |
541 | uint64_t fp = ecb_double_to_binary64 (nv); |
336 | |
542 | |
337 | *enc->cur++ = 0xe0 | 27; |
543 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
338 | |
544 | |
339 | if (!ecb_big_endian ()) |
545 | if (!ecb_big_endian ()) |
340 | fp = ecb_bswap64 (fp); |
546 | fp = ecb_bswap64 (fp); |
341 | |
547 | |
342 | memcpy (enc->cur, &fp, 8); |
548 | memcpy (enc->cur, &fp, 8); |
… | |
… | |
351 | |
557 | |
352 | if (SvPOKp (sv)) |
558 | if (SvPOKp (sv)) |
353 | { |
559 | { |
354 | STRLEN len; |
560 | STRLEN len; |
355 | char *str = SvPV (sv, len); |
561 | char *str = SvPV (sv, len); |
356 | encode_str (enc, SvUTF8 (sv), str, len); |
562 | encode_strref (enc, SvUTF8 (sv), str, len); |
357 | } |
563 | } |
358 | else if (SvNOKp (sv)) |
564 | else if (SvNOKp (sv)) |
359 | encode_nv (enc, sv); |
565 | encode_nv (enc, sv); |
360 | else if (SvIOKp (sv)) |
566 | else if (SvIOKp (sv)) |
361 | { |
567 | { |
362 | if (SvIsUV (sv)) |
568 | if (SvIsUV (sv)) |
363 | encode_uint (enc, 0x00, SvUVX (sv)); |
569 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
364 | else if (SvIVX (sv) >= 0) |
570 | else if (SvIVX (sv) >= 0) |
365 | encode_uint (enc, 0x00, SvIVX (sv)); |
571 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
366 | else |
572 | else |
367 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
573 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
368 | } |
574 | } |
369 | else if (SvROK (sv)) |
575 | else if (SvROK (sv)) |
370 | encode_rv (enc, SvRV (sv)); |
576 | encode_rv (enc, SvRV (sv)); |
371 | else if (!SvOK (sv)) |
577 | else if (!SvOK (sv)) |
372 | encode_ch (enc, 0xe0 | 22); |
578 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
373 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
579 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
374 | encode_ch (enc, 0xe0 | 23); |
580 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
375 | else |
581 | else |
376 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
582 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
377 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
583 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
378 | } |
584 | } |
379 | |
585 | |
380 | static SV * |
586 | static SV * |
381 | encode_cbor (SV *scalar, CBOR *cbor) |
587 | encode_cbor (SV *scalar, CBOR *cbor) |
382 | { |
588 | { |
383 | enc_t enc; |
589 | enc_t enc = { }; |
384 | |
590 | |
385 | enc.cbor = *cbor; |
591 | enc.cbor = *cbor; |
386 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
592 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
387 | enc.cur = SvPVX (enc.sv); |
593 | enc.cur = SvPVX (enc.sv); |
388 | enc.end = SvEND (enc.sv); |
594 | enc.end = SvEND (enc.sv); |
389 | enc.depth = 0; |
|
|
390 | |
595 | |
391 | SvPOK_only (enc.sv); |
596 | SvPOK_only (enc.sv); |
|
|
597 | |
|
|
598 | if (cbor->flags & F_PACK_STRINGS) |
|
|
599 | { |
|
|
600 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
601 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
602 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
603 | } |
|
|
604 | |
392 | encode_sv (&enc, scalar); |
605 | encode_sv (&enc, scalar); |
393 | |
606 | |
394 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
607 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
395 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
608 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
396 | |
609 | |
… | |
… | |
410 | U8 *end; // end of input string |
623 | U8 *end; // end of input string |
411 | const char *err; // parse error, if != 0 |
624 | const char *err; // parse error, if != 0 |
412 | CBOR cbor; |
625 | CBOR cbor; |
413 | U32 depth; // recursion depth |
626 | U32 depth; // recursion depth |
414 | U32 maxdepth; // recursion depth limit |
627 | U32 maxdepth; // recursion depth limit |
|
|
628 | AV *shareable; |
|
|
629 | AV *stringref; |
|
|
630 | SV *decode_tagged; |
415 | } dec_t; |
631 | } dec_t; |
416 | |
632 | |
417 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
633 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
418 | |
634 | |
419 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
635 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
… | |
… | |
422 | #define DEC_DEC_DEPTH --dec->depth |
638 | #define DEC_DEC_DEPTH --dec->depth |
423 | |
639 | |
424 | static UV |
640 | static UV |
425 | decode_uint (dec_t *dec) |
641 | decode_uint (dec_t *dec) |
426 | { |
642 | { |
427 | switch (*dec->cur & 31) |
643 | U8 m = *dec->cur & MINOR_MASK; |
428 | { |
644 | ++dec->cur; |
429 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
430 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
431 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
432 | return *dec->cur++ & 31; |
|
|
433 | |
645 | |
434 | case 24: |
646 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
647 | return m; |
|
|
648 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
649 | { |
435 | WANT (2); |
650 | WANT (1); |
436 | dec->cur += 2; |
651 | dec->cur += 1; |
437 | return dec->cur[-1]; |
652 | return dec->cur[-1]; |
438 | |
653 | } |
439 | case 25: |
654 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
655 | { |
440 | WANT (3); |
656 | WANT (2); |
441 | dec->cur += 3; |
657 | dec->cur += 2; |
442 | return (((UV)dec->cur[-2]) << 8) |
658 | return (((UV)dec->cur[-2]) << 8) |
443 | | ((UV)dec->cur[-1]); |
659 | | ((UV)dec->cur[-1]); |
444 | |
660 | } |
445 | case 26: |
661 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
662 | { |
446 | WANT (5); |
663 | WANT (4); |
447 | dec->cur += 5; |
664 | dec->cur += 4; |
448 | return (((UV)dec->cur[-4]) << 24) |
665 | return (((UV)dec->cur[-4]) << 24) |
449 | | (((UV)dec->cur[-3]) << 16) |
666 | | (((UV)dec->cur[-3]) << 16) |
450 | | (((UV)dec->cur[-2]) << 8) |
667 | | (((UV)dec->cur[-2]) << 8) |
451 | | ((UV)dec->cur[-1]); |
668 | | ((UV)dec->cur[-1]); |
452 | |
669 | } |
453 | case 27: |
670 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
671 | { |
454 | WANT (9); |
672 | WANT (8); |
455 | dec->cur += 9; |
673 | dec->cur += 8; |
|
|
674 | |
|
|
675 | return |
|
|
676 | #if UVSIZE < 8 |
|
|
677 | 0 |
|
|
678 | #else |
456 | return (((UV)dec->cur[-8]) << 56) |
679 | (((UV)dec->cur[-8]) << 56) |
457 | | (((UV)dec->cur[-7]) << 48) |
680 | | (((UV)dec->cur[-7]) << 48) |
458 | | (((UV)dec->cur[-6]) << 40) |
681 | | (((UV)dec->cur[-6]) << 40) |
459 | | (((UV)dec->cur[-5]) << 32) |
682 | | (((UV)dec->cur[-5]) << 32) |
|
|
683 | #endif |
460 | | (((UV)dec->cur[-4]) << 24) |
684 | | (((UV)dec->cur[-4]) << 24) |
461 | | (((UV)dec->cur[-3]) << 16) |
685 | | (((UV)dec->cur[-3]) << 16) |
462 | | (((UV)dec->cur[-2]) << 8) |
686 | | (((UV)dec->cur[-2]) << 8) |
463 | | ((UV)dec->cur[-1]); |
687 | | ((UV)dec->cur[-1]); |
464 | |
688 | } |
465 | default: |
689 | else |
466 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
690 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
467 | } |
|
|
468 | |
691 | |
469 | fail: |
692 | fail: |
470 | return 0; |
693 | return 0; |
471 | } |
694 | } |
472 | |
695 | |
… | |
… | |
477 | { |
700 | { |
478 | AV *av = newAV (); |
701 | AV *av = newAV (); |
479 | |
702 | |
480 | DEC_INC_DEPTH; |
703 | DEC_INC_DEPTH; |
481 | |
704 | |
482 | if ((*dec->cur & 31) == 31) |
705 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
483 | { |
706 | { |
484 | ++dec->cur; |
707 | ++dec->cur; |
485 | |
708 | |
486 | for (;;) |
709 | for (;;) |
487 | { |
710 | { |
488 | WANT (1); |
711 | WANT (1); |
489 | |
712 | |
490 | if (*dec->cur == (0xe0 | 31)) |
713 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
491 | { |
714 | { |
492 | ++dec->cur; |
715 | ++dec->cur; |
493 | break; |
716 | break; |
494 | } |
717 | } |
495 | |
718 | |
… | |
… | |
498 | } |
721 | } |
499 | else |
722 | else |
500 | { |
723 | { |
501 | int i, len = decode_uint (dec); |
724 | int i, len = decode_uint (dec); |
502 | |
725 | |
|
|
726 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
503 | av_fill (av, len - 1); |
727 | av_fill (av, len - 1); |
504 | |
728 | |
505 | for (i = 0; i < len; ++i) |
729 | for (i = 0; i < len; ++i) |
506 | AvARRAY (av)[i] = decode_sv (dec); |
730 | AvARRAY (av)[i] = decode_sv (dec); |
507 | } |
731 | } |
… | |
… | |
513 | SvREFCNT_dec (av); |
737 | SvREFCNT_dec (av); |
514 | DEC_DEC_DEPTH; |
738 | DEC_DEC_DEPTH; |
515 | return &PL_sv_undef; |
739 | return &PL_sv_undef; |
516 | } |
740 | } |
517 | |
741 | |
|
|
742 | static void |
|
|
743 | decode_he (dec_t *dec, HV *hv) |
|
|
744 | { |
|
|
745 | // for speed reasons, we specialcase single-string |
|
|
746 | // byte or utf-8 strings as keys, but only when !stringref |
|
|
747 | |
|
|
748 | if (ecb_expect_true (!dec->stringref)) |
|
|
749 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
|
|
750 | { |
|
|
751 | I32 len = decode_uint (dec); |
|
|
752 | char *key = (char *)dec->cur; |
|
|
753 | |
|
|
754 | dec->cur += len; |
|
|
755 | |
|
|
756 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
757 | |
|
|
758 | return; |
|
|
759 | } |
|
|
760 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
|
|
761 | { |
|
|
762 | I32 len = decode_uint (dec); |
|
|
763 | char *key = (char *)dec->cur; |
|
|
764 | |
|
|
765 | dec->cur += len; |
|
|
766 | |
|
|
767 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
768 | if (!is_utf8_string (key, len)) |
|
|
769 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
|
|
770 | |
|
|
771 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
772 | |
|
|
773 | return; |
|
|
774 | } |
|
|
775 | |
|
|
776 | SV *k = decode_sv (dec); |
|
|
777 | SV *v = decode_sv (dec); |
|
|
778 | |
|
|
779 | hv_store_ent (hv, k, v, 0); |
|
|
780 | SvREFCNT_dec (k); |
|
|
781 | |
|
|
782 | fail: |
|
|
783 | ; |
|
|
784 | } |
|
|
785 | |
518 | static SV * |
786 | static SV * |
519 | decode_hv (dec_t *dec) |
787 | decode_hv (dec_t *dec) |
520 | { |
788 | { |
521 | HV *hv = newHV (); |
789 | HV *hv = newHV (); |
522 | |
790 | |
523 | DEC_INC_DEPTH; |
791 | DEC_INC_DEPTH; |
524 | |
792 | |
525 | if ((*dec->cur & 31) == 31) |
793 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
526 | { |
794 | { |
527 | ++dec->cur; |
795 | ++dec->cur; |
528 | |
796 | |
529 | for (;;) |
797 | for (;;) |
530 | { |
798 | { |
531 | WANT (1); |
799 | WANT (1); |
532 | |
800 | |
533 | if (*dec->cur == (0xe0 | 31)) |
801 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
534 | { |
802 | { |
535 | ++dec->cur; |
803 | ++dec->cur; |
536 | break; |
804 | break; |
537 | } |
805 | } |
538 | |
806 | |
539 | SV *k = decode_sv (dec); |
807 | decode_he (dec, hv); |
540 | SV *v = decode_sv (dec); |
|
|
541 | |
|
|
542 | hv_store_ent (hv, k, v, 0); |
|
|
543 | } |
808 | } |
544 | } |
809 | } |
545 | else |
810 | else |
546 | { |
811 | { |
547 | int len = decode_uint (dec); |
812 | int pairs = decode_uint (dec); |
548 | |
813 | |
549 | while (len--) |
814 | while (pairs--) |
550 | { |
815 | decode_he (dec, hv); |
551 | SV *k = decode_sv (dec); |
|
|
552 | SV *v = decode_sv (dec); |
|
|
553 | |
|
|
554 | hv_store_ent (hv, k, v, 0); |
|
|
555 | } |
|
|
556 | } |
816 | } |
557 | |
817 | |
558 | DEC_DEC_DEPTH; |
818 | DEC_DEC_DEPTH; |
559 | return newRV_noinc ((SV *)hv); |
819 | return newRV_noinc ((SV *)hv); |
560 | |
820 | |
… | |
… | |
567 | static SV * |
827 | static SV * |
568 | decode_str (dec_t *dec, int utf8) |
828 | decode_str (dec_t *dec, int utf8) |
569 | { |
829 | { |
570 | SV *sv = 0; |
830 | SV *sv = 0; |
571 | |
831 | |
572 | if ((*dec->cur & 31) == 31) |
832 | if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
573 | { |
833 | { |
|
|
834 | // indefinite length strings |
574 | ++dec->cur; |
835 | ++dec->cur; |
575 | |
836 | |
|
|
837 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
838 | |
576 | sv = newSVpvn ("", 0); |
839 | sv = newSVpvn ("", 0); |
577 | |
840 | |
578 | // not very fast, and certainly not robust against illegal input |
|
|
579 | for (;;) |
841 | for (;;) |
580 | { |
842 | { |
581 | WANT (1); |
843 | WANT (1); |
582 | |
844 | |
583 | if (*dec->cur == (0xe0 | 31)) |
845 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
846 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
584 | { |
847 | { |
585 | ++dec->cur; |
848 | ++dec->cur; |
586 | break; |
849 | break; |
587 | } |
850 | } |
|
|
851 | else |
|
|
852 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
588 | |
853 | |
589 | sv_catsv (sv, decode_sv (dec)); |
854 | STRLEN len = decode_uint (dec); |
|
|
855 | |
|
|
856 | WANT (len); |
|
|
857 | sv_catpvn (sv, dec->cur, len); |
|
|
858 | dec->cur += len; |
590 | } |
859 | } |
591 | } |
860 | } |
592 | else |
861 | else |
593 | { |
862 | { |
594 | STRLEN len = decode_uint (dec); |
863 | STRLEN len = decode_uint (dec); |
595 | |
864 | |
596 | WANT (len); |
865 | WANT (len); |
597 | sv = newSVpvn (dec->cur, len); |
866 | sv = newSVpvn (dec->cur, len); |
598 | dec->cur += len; |
867 | dec->cur += len; |
|
|
868 | |
|
|
869 | if (ecb_expect_false (dec->stringref) |
|
|
870 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
871 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
599 | } |
872 | } |
600 | |
873 | |
601 | if (utf8) |
874 | if (utf8) |
|
|
875 | { |
|
|
876 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
877 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
878 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
879 | |
602 | SvUTF8_on (sv); |
880 | SvUTF8_on (sv); |
|
|
881 | } |
603 | |
882 | |
604 | return sv; |
883 | return sv; |
605 | |
884 | |
606 | fail: |
885 | fail: |
607 | SvREFCNT_dec (sv); |
886 | SvREFCNT_dec (sv); |
… | |
… | |
609 | } |
888 | } |
610 | |
889 | |
611 | static SV * |
890 | static SV * |
612 | decode_tagged (dec_t *dec) |
891 | decode_tagged (dec_t *dec) |
613 | { |
892 | { |
|
|
893 | SV *sv = 0; |
614 | UV tag = decode_uint (dec); |
894 | UV tag = decode_uint (dec); |
|
|
895 | |
|
|
896 | WANT (1); |
|
|
897 | |
|
|
898 | switch (tag) |
|
|
899 | { |
|
|
900 | case CBOR_TAG_MAGIC: |
615 | SV *sv = decode_sv (dec); |
901 | sv = decode_sv (dec); |
|
|
902 | break; |
616 | |
903 | |
617 | if (tag == 55799) // 2.4.5 Self-Describe CBOR |
904 | case CBOR_TAG_INDIRECTION: |
|
|
905 | sv = newRV_noinc (decode_sv (dec)); |
|
|
906 | break; |
|
|
907 | |
|
|
908 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
909 | { |
|
|
910 | ENTER; SAVETMPS; |
|
|
911 | |
|
|
912 | SAVESPTR (dec->stringref); |
|
|
913 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
914 | |
|
|
915 | sv = decode_sv (dec); |
|
|
916 | |
|
|
917 | FREETMPS; LEAVE; |
|
|
918 | } |
|
|
919 | break; |
|
|
920 | |
|
|
921 | case CBOR_TAG_STRINGREF: |
|
|
922 | { |
|
|
923 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
924 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
925 | |
|
|
926 | UV idx = decode_uint (dec); |
|
|
927 | |
|
|
928 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
|
|
929 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
930 | |
|
|
931 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
932 | } |
|
|
933 | break; |
|
|
934 | |
|
|
935 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
936 | { |
|
|
937 | if (ecb_expect_false (!dec->shareable)) |
|
|
938 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
939 | |
|
|
940 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
941 | { |
|
|
942 | sv = newSV (0); |
|
|
943 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
944 | |
|
|
945 | SV *osv = decode_sv (dec); |
|
|
946 | sv_setsv (sv, osv); |
|
|
947 | SvREFCNT_dec_NN (osv); |
|
|
948 | } |
|
|
949 | else |
|
|
950 | { |
|
|
951 | av_push (dec->shareable, &PL_sv_undef); |
|
|
952 | int idx = AvFILLp (dec->shareable); |
|
|
953 | sv = decode_sv (dec); |
|
|
954 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
955 | } |
|
|
956 | } |
|
|
957 | break; |
|
|
958 | |
|
|
959 | case CBOR_TAG_VALUE_SHAREDREF: |
|
|
960 | { |
|
|
961 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
962 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
963 | |
|
|
964 | UV idx = decode_uint (dec); |
|
|
965 | |
|
|
966 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
|
|
967 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
968 | |
|
|
969 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
970 | |
|
|
971 | if (sv == &PL_sv_undef) |
|
|
972 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
|
|
973 | } |
|
|
974 | break; |
|
|
975 | |
|
|
976 | case CBOR_TAG_PERL_OBJECT: |
|
|
977 | { |
|
|
978 | sv = decode_sv (dec); |
|
|
979 | |
|
|
980 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
|
|
981 | ERR ("corrupted CBOR data (non-array perl object)"); |
|
|
982 | |
|
|
983 | AV *av = (AV *)SvRV (sv); |
|
|
984 | int len = av_len (av) + 1; |
|
|
985 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
|
|
986 | |
|
|
987 | if (!stash) |
|
|
988 | ERR ("cannot decode perl-object (package does not exist)"); |
|
|
989 | |
|
|
990 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
|
|
991 | |
|
|
992 | if (!method) |
|
|
993 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
|
|
994 | |
|
|
995 | dSP; |
|
|
996 | |
|
|
997 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
998 | EXTEND (SP, len + 1); |
|
|
999 | // we re-bless the reference to get overload and other niceties right |
|
|
1000 | PUSHs (*av_fetch (av, 0, 1)); |
|
|
1001 | PUSHs (sv_cbor); |
|
|
1002 | |
|
|
1003 | int i; |
|
|
1004 | |
|
|
1005 | for (i = 1; i < len; ++i) |
|
|
1006 | PUSHs (*av_fetch (av, i, 1)); |
|
|
1007 | |
|
|
1008 | PUTBACK; |
|
|
1009 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
|
|
1010 | SPAGAIN; |
|
|
1011 | |
|
|
1012 | if (SvTRUE (ERRSV)) |
|
|
1013 | { |
|
|
1014 | FREETMPS; LEAVE; |
|
|
1015 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
1016 | } |
|
|
1017 | |
|
|
1018 | SvREFCNT_dec (sv); |
|
|
1019 | sv = SvREFCNT_inc (POPs); |
|
|
1020 | |
|
|
1021 | PUTBACK; |
|
|
1022 | |
|
|
1023 | FREETMPS; LEAVE; |
|
|
1024 | } |
|
|
1025 | break; |
|
|
1026 | |
|
|
1027 | default: |
|
|
1028 | { |
|
|
1029 | sv = decode_sv (dec); |
|
|
1030 | |
|
|
1031 | dSP; |
|
|
1032 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
1033 | EXTEND (SP, 2); |
|
|
1034 | PUSHs (newSVuv (tag)); |
|
|
1035 | PUSHs (sv); |
|
|
1036 | |
|
|
1037 | PUTBACK; |
|
|
1038 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
1039 | SPAGAIN; |
|
|
1040 | |
|
|
1041 | if (SvTRUE (ERRSV)) |
|
|
1042 | { |
|
|
1043 | FREETMPS; LEAVE; |
|
|
1044 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
1045 | } |
|
|
1046 | |
|
|
1047 | if (count) |
|
|
1048 | { |
|
|
1049 | SvREFCNT_dec (sv); |
|
|
1050 | sv = SvREFCNT_inc (POPs); |
|
|
1051 | } |
|
|
1052 | else |
|
|
1053 | { |
|
|
1054 | AV *av = newAV (); |
|
|
1055 | av_push (av, newSVuv (tag)); |
|
|
1056 | av_push (av, sv); |
|
|
1057 | |
|
|
1058 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
|
|
1059 | ? cbor_tagged_stash |
|
|
1060 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
|
|
1061 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
1062 | } |
|
|
1063 | |
|
|
1064 | PUTBACK; |
|
|
1065 | |
|
|
1066 | FREETMPS; LEAVE; |
|
|
1067 | } |
|
|
1068 | break; |
|
|
1069 | } |
|
|
1070 | |
618 | return sv; |
1071 | return sv; |
619 | |
1072 | |
620 | AV *av = newAV (); |
1073 | fail: |
621 | av_push (av, newSVuv (tag)); |
1074 | SvREFCNT_dec (sv); |
622 | av_push (av, sv); |
1075 | return &PL_sv_undef; |
623 | return newRV_noinc ((SV *)av); |
|
|
624 | } |
1076 | } |
625 | |
1077 | |
626 | static SV * |
1078 | static SV * |
627 | decode_sv (dec_t *dec) |
1079 | decode_sv (dec_t *dec) |
628 | { |
1080 | { |
629 | WANT (1); |
1081 | WANT (1); |
630 | |
1082 | |
631 | switch (*dec->cur >> 5) |
1083 | switch (*dec->cur >> MAJOR_SHIFT) |
632 | { |
1084 | { |
633 | case 0: // unsigned int |
1085 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
634 | return newSVuv (decode_uint (dec)); |
1086 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
635 | case 1: // negative int |
1087 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
636 | return newSViv (-1 - (IV)decode_uint (dec)); |
1088 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
637 | case 2: // octet string |
1089 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
638 | return decode_str (dec, 0); |
1090 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
639 | case 3: // utf-8 string |
1091 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
640 | return decode_str (dec, 1); |
1092 | |
641 | case 4: // array |
1093 | case MAJOR_MISC >> MAJOR_SHIFT: |
642 | return decode_av (dec); |
|
|
643 | case 5: // map |
|
|
644 | return decode_hv (dec); |
|
|
645 | case 6: // tag |
|
|
646 | return decode_tagged (dec); |
|
|
647 | case 7: // misc |
|
|
648 | switch (*dec->cur++ & 31) |
1094 | switch (*dec->cur++ & MINOR_MASK) |
649 | { |
1095 | { |
650 | case 20: |
1096 | case SIMPLE_FALSE: |
651 | #if CBOR_SLOW |
1097 | #if CBOR_SLOW |
652 | cbor_false = get_bool ("CBOR::XS::false"); |
1098 | types_false = get_bool ("Types::Serialiser::false"); |
653 | #endif |
1099 | #endif |
654 | return newSVsv (cbor_false); |
1100 | return newSVsv (types_false); |
655 | case 21: |
1101 | case SIMPLE_TRUE: |
656 | #if CBOR_SLOW |
1102 | #if CBOR_SLOW |
657 | cbor_true = get_bool ("CBOR::XS::true"); |
1103 | types_true = get_bool ("Types::Serialiser::true"); |
658 | #endif |
1104 | #endif |
659 | return newSVsv (cbor_true); |
1105 | return newSVsv (types_true); |
660 | case 22: |
1106 | case SIMPLE_NULL: |
661 | return newSVsv (&PL_sv_undef); |
1107 | return newSVsv (&PL_sv_undef); |
|
|
1108 | case SIMPLE_UNDEF: |
|
|
1109 | #if CBOR_SLOW |
|
|
1110 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1111 | #endif |
|
|
1112 | return newSVsv (types_error); |
662 | |
1113 | |
663 | case 25: |
1114 | case MISC_FLOAT16: |
664 | { |
1115 | { |
665 | WANT (2); |
1116 | WANT (2); |
666 | |
1117 | |
667 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1118 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
668 | dec->cur += 2; |
1119 | dec->cur += 2; |
669 | |
1120 | |
670 | return newSVnv (ecb_binary16_to_float (fp)); |
1121 | return newSVnv (ecb_binary16_to_float (fp)); |
671 | } |
1122 | } |
672 | |
1123 | |
673 | case 26: |
1124 | case MISC_FLOAT32: |
674 | { |
1125 | { |
675 | uint32_t fp; |
1126 | uint32_t fp; |
676 | WANT (4); |
1127 | WANT (4); |
677 | memcpy (&fp, dec->cur, 4); |
1128 | memcpy (&fp, dec->cur, 4); |
678 | dec->cur += 4; |
1129 | dec->cur += 4; |
… | |
… | |
681 | fp = ecb_bswap32 (fp); |
1132 | fp = ecb_bswap32 (fp); |
682 | |
1133 | |
683 | return newSVnv (ecb_binary32_to_float (fp)); |
1134 | return newSVnv (ecb_binary32_to_float (fp)); |
684 | } |
1135 | } |
685 | |
1136 | |
686 | case 27: |
1137 | case MISC_FLOAT64: |
687 | { |
1138 | { |
688 | uint64_t fp; |
1139 | uint64_t fp; |
689 | WANT (8); |
1140 | WANT (8); |
690 | memcpy (&fp, dec->cur, 8); |
1141 | memcpy (&fp, dec->cur, 8); |
691 | dec->cur += 8; |
1142 | dec->cur += 8; |
… | |
… | |
694 | fp = ecb_bswap64 (fp); |
1145 | fp = ecb_bswap64 (fp); |
695 | |
1146 | |
696 | return newSVnv (ecb_binary64_to_double (fp)); |
1147 | return newSVnv (ecb_binary64_to_double (fp)); |
697 | } |
1148 | } |
698 | |
1149 | |
699 | // 0..19 unassigned |
1150 | // 0..19 unassigned simple |
700 | // 24 reserved + unassigned (reserved values are not encodable) |
1151 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1152 | // 28-30 unassigned misc |
|
|
1153 | // 31 break code |
701 | default: |
1154 | default: |
702 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1155 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
703 | } |
1156 | } |
704 | |
1157 | |
705 | break; |
1158 | break; |
706 | } |
1159 | } |
707 | |
1160 | |
… | |
… | |
710 | } |
1163 | } |
711 | |
1164 | |
712 | static SV * |
1165 | static SV * |
713 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1166 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
714 | { |
1167 | { |
715 | dec_t dec; |
1168 | dec_t dec = { }; |
716 | SV *sv; |
1169 | SV *sv; |
|
|
1170 | STRLEN len; |
|
|
1171 | char *data = SvPVbyte (string, len); |
717 | |
1172 | |
718 | /* work around bugs in 5.10 where manipulating magic values |
|
|
719 | * makes perl ignore the magic in subsequent accesses. |
|
|
720 | * also make a copy of non-PV values, to get them into a clean |
|
|
721 | * state (SvPV should do that, but it's buggy, see below). |
|
|
722 | */ |
|
|
723 | /*SvGETMAGIC (string);*/ |
|
|
724 | if (SvMAGICAL (string) || !SvPOK (string)) |
|
|
725 | string = sv_2mortal (newSVsv (string)); |
|
|
726 | |
|
|
727 | SvUPGRADE (string, SVt_PV); |
|
|
728 | |
|
|
729 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
730 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
731 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
732 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
733 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
734 | * and hope for the best. |
|
|
735 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
736 | * assertion business is seriously broken, try yet another workaround |
|
|
737 | * for the broken -DDEBUGGING. |
|
|
738 | */ |
|
|
739 | { |
|
|
740 | #ifdef DEBUGGING |
|
|
741 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
742 | #else |
|
|
743 | STRLEN offset = SvCUR (string); |
|
|
744 | #endif |
|
|
745 | |
|
|
746 | if (offset > cbor->max_size && cbor->max_size) |
1173 | if (len > cbor->max_size && cbor->max_size) |
747 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1174 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
748 | (unsigned long)SvCUR (string), (unsigned long)cbor->max_size); |
1175 | (unsigned long)len, (unsigned long)cbor->max_size); |
749 | } |
|
|
750 | |
|
|
751 | sv_utf8_downgrade (string, 0); |
|
|
752 | |
1176 | |
753 | dec.cbor = *cbor; |
1177 | dec.cbor = *cbor; |
754 | dec.cur = (U8 *)SvPVX (string); |
1178 | dec.cur = (U8 *)data; |
755 | dec.end = (U8 *)SvEND (string); |
1179 | dec.end = (U8 *)data + len; |
756 | dec.err = 0; |
|
|
757 | dec.depth = 0; |
|
|
758 | |
1180 | |
759 | sv = decode_sv (&dec); |
1181 | sv = decode_sv (&dec); |
760 | |
1182 | |
761 | if (offset_return) |
1183 | if (offset_return) |
762 | *offset_return = dec.cur; |
1184 | *offset_return = dec.cur; |
… | |
… | |
765 | if (dec.cur != dec.end && !dec.err) |
1187 | if (dec.cur != dec.end && !dec.err) |
766 | dec.err = "garbage after CBOR object"; |
1188 | dec.err = "garbage after CBOR object"; |
767 | |
1189 | |
768 | if (dec.err) |
1190 | if (dec.err) |
769 | { |
1191 | { |
|
|
1192 | if (dec.shareable) |
|
|
1193 | { |
|
|
1194 | // need to break cyclic links, which whould all be in shareable |
|
|
1195 | int i; |
|
|
1196 | SV **svp; |
|
|
1197 | |
|
|
1198 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1199 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1200 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1201 | } |
|
|
1202 | |
770 | SvREFCNT_dec (sv); |
1203 | SvREFCNT_dec (sv); |
771 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1204 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
772 | } |
1205 | } |
773 | |
1206 | |
774 | sv = sv_2mortal (sv); |
1207 | sv = sv_2mortal (sv); |
775 | |
1208 | |
776 | return sv; |
1209 | return sv; |
777 | } |
1210 | } |
778 | |
1211 | |
|
|
1212 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1213 | // incremental parser |
|
|
1214 | |
|
|
1215 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1216 | |
|
|
1217 | // returns 0 for notyet, 1 for success or error |
|
|
1218 | static int |
|
|
1219 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1220 | { |
|
|
1221 | STRLEN cur; |
|
|
1222 | SvPV (cborstr, cur); |
|
|
1223 | |
|
|
1224 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1225 | { |
|
|
1226 | // table of integer count bytes |
|
|
1227 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1228 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1229 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1230 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1231 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1232 | }; |
|
|
1233 | |
|
|
1234 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1235 | U8 m = *p & MINOR_MASK; |
|
|
1236 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1237 | I8 ilen = incr_len[m]; |
|
|
1238 | |
|
|
1239 | self->incr_need = self->incr_pos + 1; |
|
|
1240 | |
|
|
1241 | if (ecb_expect_false (ilen < 0)) |
|
|
1242 | { |
|
|
1243 | if (m != MINOR_INDEF) |
|
|
1244 | return 1; // error |
|
|
1245 | |
|
|
1246 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1247 | { |
|
|
1248 | if (count >= 0) |
|
|
1249 | return 1; // error |
|
|
1250 | |
|
|
1251 | count = 1; |
|
|
1252 | } |
|
|
1253 | else |
|
|
1254 | { |
|
|
1255 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1256 | count = -1; |
|
|
1257 | } |
|
|
1258 | } |
|
|
1259 | else |
|
|
1260 | { |
|
|
1261 | self->incr_need += ilen; |
|
|
1262 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1263 | return 0; |
|
|
1264 | |
|
|
1265 | int major = *p >> MAJOR_SHIFT; |
|
|
1266 | |
|
|
1267 | switch (major) |
|
|
1268 | { |
|
|
1269 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1270 | ++count; // tags merely prefix another value |
|
|
1271 | break; |
|
|
1272 | |
|
|
1273 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1274 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1275 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1276 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1277 | { |
|
|
1278 | UV len; |
|
|
1279 | |
|
|
1280 | if (ecb_expect_false (ilen)) |
|
|
1281 | { |
|
|
1282 | len = 0; |
|
|
1283 | |
|
|
1284 | do { |
|
|
1285 | len = (len << 8) | *++p; |
|
|
1286 | } while (--ilen); |
|
|
1287 | } |
|
|
1288 | else |
|
|
1289 | len = m; |
|
|
1290 | |
|
|
1291 | switch (major) |
|
|
1292 | { |
|
|
1293 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1294 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1295 | self->incr_need += len; |
|
|
1296 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1297 | return 0; |
|
|
1298 | |
|
|
1299 | break; |
|
|
1300 | |
|
|
1301 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1302 | len <<= 1; |
|
|
1303 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1304 | if (len) |
|
|
1305 | { |
|
|
1306 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1307 | count = len + 1; |
|
|
1308 | } |
|
|
1309 | break; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | } |
|
|
1313 | } |
|
|
1314 | |
|
|
1315 | self->incr_pos = self->incr_need; |
|
|
1316 | |
|
|
1317 | if (count > 0) |
|
|
1318 | { |
|
|
1319 | while (!--count) |
|
|
1320 | { |
|
|
1321 | if (!AvFILLp (self->incr_count)) |
|
|
1322 | return 1; // done |
|
|
1323 | |
|
|
1324 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1325 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1326 | } |
|
|
1327 | |
|
|
1328 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1329 | } |
|
|
1330 | } |
|
|
1331 | |
|
|
1332 | return 0; |
|
|
1333 | } |
|
|
1334 | |
|
|
1335 | |
779 | ///////////////////////////////////////////////////////////////////////////// |
1336 | ///////////////////////////////////////////////////////////////////////////// |
780 | // XS interface functions |
1337 | // XS interface functions |
781 | |
1338 | |
782 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1339 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
783 | |
1340 | |
784 | BOOT: |
1341 | BOOT: |
785 | { |
1342 | { |
786 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1343 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
787 | cbor_boolean_stash = gv_stashpv ("CBOR::XS::Boolean", 1); |
|
|
788 | cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1344 | cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
789 | |
1345 | |
790 | cbor_true = get_bool ("CBOR::XS::true"); |
1346 | types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
791 | cbor_false = get_bool ("CBOR::XS::false"); |
1347 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
|
|
1348 | |
|
|
1349 | types_true = get_bool ("Types::Serialiser::true" ); |
|
|
1350 | types_false = get_bool ("Types::Serialiser::false"); |
|
|
1351 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1352 | |
|
|
1353 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
|
|
1354 | |
|
|
1355 | sv_cbor = newSVpv ("CBOR", 0); |
|
|
1356 | SvREADONLY_on (sv_cbor); |
792 | } |
1357 | } |
793 | |
1358 | |
794 | PROTOTYPES: DISABLE |
1359 | PROTOTYPES: DISABLE |
795 | |
1360 | |
796 | void CLONE (...) |
1361 | void CLONE (...) |
797 | CODE: |
1362 | CODE: |
798 | cbor_stash = 0; |
1363 | cbor_stash = 0; |
799 | cbor_boolean_stash = 0; |
|
|
800 | cbor_tagged_stash = 0; |
1364 | cbor_tagged_stash = 0; |
|
|
1365 | types_error_stash = 0; |
|
|
1366 | types_boolean_stash = 0; |
801 | |
1367 | |
802 | void new (char *klass) |
1368 | void new (char *klass) |
803 | PPCODE: |
1369 | PPCODE: |
804 | { |
1370 | { |
805 | SV *pv = NEWSV (0, sizeof (CBOR)); |
1371 | SV *pv = NEWSV (0, sizeof (CBOR)); |
… | |
… | |
813 | |
1379 | |
814 | void shrink (CBOR *self, int enable = 1) |
1380 | void shrink (CBOR *self, int enable = 1) |
815 | ALIAS: |
1381 | ALIAS: |
816 | shrink = F_SHRINK |
1382 | shrink = F_SHRINK |
817 | allow_unknown = F_ALLOW_UNKNOWN |
1383 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1384 | allow_sharing = F_ALLOW_SHARING |
|
|
1385 | allow_cycles = F_ALLOW_CYCLES |
|
|
1386 | pack_strings = F_PACK_STRINGS |
|
|
1387 | validate_utf8 = F_VALIDATE_UTF8 |
818 | PPCODE: |
1388 | PPCODE: |
819 | { |
1389 | { |
820 | if (enable) |
1390 | if (enable) |
821 | self->flags |= ix; |
1391 | self->flags |= ix; |
822 | else |
1392 | else |
… | |
… | |
827 | |
1397 | |
828 | void get_shrink (CBOR *self) |
1398 | void get_shrink (CBOR *self) |
829 | ALIAS: |
1399 | ALIAS: |
830 | get_shrink = F_SHRINK |
1400 | get_shrink = F_SHRINK |
831 | get_allow_unknown = F_ALLOW_UNKNOWN |
1401 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1402 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1403 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1404 | get_pack_strings = F_PACK_STRINGS |
|
|
1405 | get_validate_utf8 = F_VALIDATE_UTF8 |
832 | PPCODE: |
1406 | PPCODE: |
833 | XPUSHs (boolSV (self->flags & ix)); |
1407 | XPUSHs (boolSV (self->flags & ix)); |
834 | |
1408 | |
835 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1409 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
836 | PPCODE: |
1410 | PPCODE: |
… | |
… | |
852 | CODE: |
1426 | CODE: |
853 | RETVAL = self->max_size; |
1427 | RETVAL = self->max_size; |
854 | OUTPUT: |
1428 | OUTPUT: |
855 | RETVAL |
1429 | RETVAL |
856 | |
1430 | |
857 | #if 0 //TODO |
1431 | void filter (CBOR *self, SV *filter = 0) |
858 | |
|
|
859 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
860 | PPCODE: |
1432 | PPCODE: |
861 | { |
|
|
862 | SvREFCNT_dec (self->cb_object); |
1433 | SvREFCNT_dec (self->filter); |
863 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1434 | self->filter = filter ? newSVsv (filter) : filter; |
864 | |
|
|
865 | XPUSHs (ST (0)); |
1435 | XPUSHs (ST (0)); |
866 | } |
|
|
867 | |
1436 | |
868 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
1437 | SV *get_filter (CBOR *self) |
869 | PPCODE: |
1438 | CODE: |
870 | { |
1439 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
871 | if (!self->cb_sk_object) |
1440 | OUTPUT: |
872 | self->cb_sk_object = newHV (); |
1441 | RETVAL |
873 | |
|
|
874 | if (SvOK (cb)) |
|
|
875 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
876 | else |
|
|
877 | { |
|
|
878 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
879 | |
|
|
880 | if (!HvKEYS (self->cb_sk_object)) |
|
|
881 | { |
|
|
882 | SvREFCNT_dec (self->cb_sk_object); |
|
|
883 | self->cb_sk_object = 0; |
|
|
884 | } |
|
|
885 | } |
|
|
886 | |
|
|
887 | XPUSHs (ST (0)); |
|
|
888 | } |
|
|
889 | |
|
|
890 | #endif |
|
|
891 | |
1442 | |
892 | void encode (CBOR *self, SV *scalar) |
1443 | void encode (CBOR *self, SV *scalar) |
893 | PPCODE: |
1444 | PPCODE: |
894 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1445 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
895 | XPUSHs (scalar); |
1446 | XPUSHs (scalar); |
… | |
… | |
908 | EXTEND (SP, 2); |
1459 | EXTEND (SP, 2); |
909 | PUSHs (sv); |
1460 | PUSHs (sv); |
910 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1461 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
911 | } |
1462 | } |
912 | |
1463 | |
913 | #if 0 |
1464 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1465 | ALIAS: |
|
|
1466 | incr_parse_multiple = 1 |
|
|
1467 | PPCODE: |
|
|
1468 | { |
|
|
1469 | if (SvUTF8 (cborstr)) |
|
|
1470 | sv_utf8_downgrade (cborstr, 0); |
|
|
1471 | |
|
|
1472 | if (!self->incr_count) |
|
|
1473 | { |
|
|
1474 | self->incr_count = newAV (); |
|
|
1475 | self->incr_pos = 0; |
|
|
1476 | self->incr_need = 1; |
|
|
1477 | |
|
|
1478 | av_push (self->incr_count, newSViv (1)); |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | do |
|
|
1482 | { |
|
|
1483 | if (!incr_parse (self, cborstr)) |
|
|
1484 | { |
|
|
1485 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1486 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1487 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1488 | |
|
|
1489 | break; |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | SV *sv; |
|
|
1493 | char *offset; |
|
|
1494 | |
|
|
1495 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1496 | XPUSHs (sv); |
|
|
1497 | |
|
|
1498 | sv_chop (cborstr, offset); |
|
|
1499 | |
|
|
1500 | av_clear (self->incr_count); |
|
|
1501 | av_push (self->incr_count, newSViv (1)); |
|
|
1502 | |
|
|
1503 | self->incr_pos = 0; |
|
|
1504 | self->incr_need = self->incr_pos + 1; |
|
|
1505 | } |
|
|
1506 | while (ix); |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | void incr_reset (CBOR *self) |
|
|
1510 | CODE: |
|
|
1511 | { |
|
|
1512 | SvREFCNT_dec (self->incr_count); |
|
|
1513 | self->incr_count = 0; |
|
|
1514 | } |
914 | |
1515 | |
915 | void DESTROY (CBOR *self) |
1516 | void DESTROY (CBOR *self) |
916 | CODE: |
1517 | PPCODE: |
917 | SvREFCNT_dec (self->cb_sk_object); |
1518 | cbor_free (self); |
918 | SvREFCNT_dec (self->cb_object); |
|
|
919 | |
|
|
920 | #endif |
|
|
921 | |
1519 | |
922 | PROTOTYPES: ENABLE |
1520 | PROTOTYPES: ENABLE |
923 | |
1521 | |
924 | void encode_cbor (SV *scalar) |
1522 | void encode_cbor (SV *scalar) |
|
|
1523 | ALIAS: |
|
|
1524 | encode_cbor = 0 |
|
|
1525 | encode_cbor_sharing = F_ALLOW_SHARING |
925 | PPCODE: |
1526 | PPCODE: |
926 | { |
1527 | { |
927 | CBOR cbor; |
1528 | CBOR cbor; |
928 | cbor_init (&cbor); |
1529 | cbor_init (&cbor); |
|
|
1530 | cbor.flags |= ix; |
929 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1531 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
930 | XPUSHs (scalar); |
1532 | XPUSHs (scalar); |
931 | } |
1533 | } |
932 | |
1534 | |
933 | void decode_cbor (SV *cborstr) |
1535 | void decode_cbor (SV *cborstr) |