… | |
… | |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
11 | |
11 | |
12 | #include "ecb.h" |
12 | #include "ecb.h" |
13 | |
13 | |
14 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
14 | // compatibility with perl <5.18 |
15 | # define snprintf _snprintf // C compilers have this in stdio.h |
15 | #ifndef HvNAMELEN_get |
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16 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
16 | #endif |
17 | #endif |
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18 | #ifndef HvNAMELEN |
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19 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
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20 | #endif |
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21 | #ifndef HvNAMEUTF8 |
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22 | # define HvNAMEUTF8(hv) 0 |
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23 | #endif |
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24 | #ifndef SvREFCNT_dec_NN |
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25 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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26 | #endif |
17 | |
27 | |
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28 | // known major and minor types |
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29 | enum cbor_type |
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30 | { |
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31 | MAJOR_SHIFT = 5, |
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32 | MINOR_MASK = 0x1f, |
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33 | |
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34 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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35 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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36 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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37 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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38 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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39 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
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40 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
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41 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
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42 | |
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43 | // INT/STRING/ARRAY/MAP subtypes |
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44 | LENGTH_EXT1 = 24, |
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45 | LENGTH_EXT2 = 25, |
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46 | LENGTH_EXT4 = 26, |
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47 | LENGTH_EXT8 = 27, |
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48 | |
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49 | // SIMPLE types (effectively MISC subtypes) |
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50 | SIMPLE_FALSE = 20, |
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51 | SIMPLE_TRUE = 21, |
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52 | SIMPLE_NULL = 22, |
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53 | SIMPLE_UNDEF = 23, |
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54 | |
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55 | // MISC subtype (unused) |
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56 | MISC_EXT1 = 24, |
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57 | MISC_FLOAT16 = 25, |
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58 | MISC_FLOAT32 = 26, |
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59 | MISC_FLOAT64 = 27, |
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60 | |
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61 | // BYTES/TEXT/ARRAY/MAP |
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62 | MINOR_INDEF = 31, |
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63 | }; |
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64 | |
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65 | // known tags |
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66 | enum cbor_tag |
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67 | { |
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68 | // extensions |
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69 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
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70 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
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71 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
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72 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
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73 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
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74 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
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75 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
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76 | |
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77 | // rfc7049 |
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78 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
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79 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
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80 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
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81 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
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82 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
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83 | CBOR_TAG_BIGFLOAT = 5, // array |
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84 | |
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85 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
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86 | CBOR_TAG_CONV_B64 = 22, // base64, any |
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87 | CBOR_TAG_CONV_HEX = 23, // base16, any |
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88 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
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89 | |
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90 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
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91 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
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92 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
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93 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
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94 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
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95 | |
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96 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
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97 | }; |
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98 | |
18 | #define F_SHRINK 0x00000200UL |
99 | #define F_SHRINK 0x00000001UL |
19 | #define F_ALLOW_UNKNOWN 0x00002000UL |
100 | #define F_ALLOW_UNKNOWN 0x00000002UL |
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101 | #define F_ALLOW_SHARING 0x00000004UL |
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102 | #define F_PACK_STRINGS 0x00000008UL |
20 | |
103 | |
21 | #define INIT_SIZE 32 // initial scalar size to be allocated |
104 | #define INIT_SIZE 32 // initial scalar size to be allocated |
22 | |
105 | |
23 | #define SB do { |
106 | #define SB do { |
24 | #define SE } while (0) |
107 | #define SE } while (0) |
25 | |
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26 | #if __GNUC__ >= 3 |
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27 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
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28 | # define INLINE static inline |
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29 | #else |
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30 | # define expect(expr,value) (expr) |
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31 | # define INLINE static |
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32 | #endif |
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33 | |
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34 | #define expect_false(expr) expect ((expr) != 0, 0) |
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35 | #define expect_true(expr) expect ((expr) != 0, 1) |
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36 | |
108 | |
37 | #define IN_RANGE_INC(type,val,beg,end) \ |
109 | #define IN_RANGE_INC(type,val,beg,end) \ |
38 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
110 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
39 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
111 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
40 | |
112 | |
… | |
… | |
46 | #else |
118 | #else |
47 | # define CBOR_SLOW 0 |
119 | # define CBOR_SLOW 0 |
48 | # define CBOR_STASH cbor_stash |
120 | # define CBOR_STASH cbor_stash |
49 | #endif |
121 | #endif |
50 | |
122 | |
51 | static HV *cbor_stash, *cbor_boolean_stash; // CBOR::XS:: |
123 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
52 | static SV *cbor_true, *cbor_false; |
124 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
53 | |
125 | |
54 | typedef struct { |
126 | typedef struct { |
55 | U32 flags; |
127 | U32 flags; |
56 | U32 max_depth; |
128 | U32 max_depth; |
57 | STRLEN max_size; |
129 | STRLEN max_size; |
58 | |
130 | SV *filter; |
59 | SV *cb_object; |
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60 | HV *cb_sk_object; |
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61 | } CBOR; |
131 | } CBOR; |
62 | |
132 | |
63 | INLINE void |
133 | ecb_inline void |
64 | cbor_init (CBOR *cbor) |
134 | cbor_init (CBOR *cbor) |
65 | { |
135 | { |
66 | Zero (cbor, 1, CBOR); |
136 | Zero (cbor, 1, CBOR); |
67 | cbor->max_depth = 512; |
137 | cbor->max_depth = 512; |
68 | } |
138 | } |
69 | |
139 | |
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140 | ecb_inline void |
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141 | cbor_free (CBOR *cbor) |
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142 | { |
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143 | SvREFCNT_dec (cbor->filter); |
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144 | } |
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145 | |
70 | ///////////////////////////////////////////////////////////////////////////// |
146 | ///////////////////////////////////////////////////////////////////////////// |
71 | // utility functions |
147 | // utility functions |
72 | |
148 | |
73 | INLINE SV * |
149 | ecb_inline SV * |
74 | get_bool (const char *name) |
150 | get_bool (const char *name) |
75 | { |
151 | { |
76 | SV *sv = get_sv (name, 1); |
152 | SV *sv = get_sv (name, 1); |
77 | |
153 | |
78 | SvREADONLY_on (sv); |
154 | SvREADONLY_on (sv); |
79 | SvREADONLY_on (SvRV (sv)); |
155 | SvREADONLY_on (SvRV (sv)); |
80 | |
156 | |
81 | return sv; |
157 | return sv; |
82 | } |
158 | } |
83 | |
159 | |
84 | INLINE void |
160 | ecb_inline void |
85 | shrink (SV *sv) |
161 | shrink (SV *sv) |
86 | { |
162 | { |
87 | sv_utf8_downgrade (sv, 1); |
163 | sv_utf8_downgrade (sv, 1); |
88 | |
164 | |
89 | if (SvLEN (sv) > SvCUR (sv) + 1) |
165 | if (SvLEN (sv) > SvCUR (sv) + 1) |
… | |
… | |
94 | SvPV_renew (sv, SvCUR (sv) + 1); |
170 | SvPV_renew (sv, SvCUR (sv) + 1); |
95 | #endif |
171 | #endif |
96 | } |
172 | } |
97 | } |
173 | } |
98 | |
174 | |
99 | ///////////////////////////////////////////////////////////////////////////// |
175 | // minimum length of a string to be registered for stringref |
100 | // fp hell |
176 | ecb_inline int |
101 | |
177 | minimum_string_length (UV idx) |
102 | //TODO |
178 | { |
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179 | return idx > 23 |
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180 | ? idx > 0xffU |
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181 | ? idx > 0xffffU |
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182 | ? idx > 0xffffffffU |
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183 | ? 11 |
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184 | : 7 |
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185 | : 5 |
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186 | : 4 |
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187 | : 3; |
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188 | } |
103 | |
189 | |
104 | ///////////////////////////////////////////////////////////////////////////// |
190 | ///////////////////////////////////////////////////////////////////////////// |
105 | // encoder |
191 | // encoder |
106 | |
192 | |
107 | // structure used for encoding CBOR |
193 | // structure used for encoding CBOR |
… | |
… | |
110 | char *cur; // SvPVX (sv) + current output position |
196 | char *cur; // SvPVX (sv) + current output position |
111 | char *end; // SvEND (sv) |
197 | char *end; // SvEND (sv) |
112 | SV *sv; // result scalar |
198 | SV *sv; // result scalar |
113 | CBOR cbor; |
199 | CBOR cbor; |
114 | U32 depth; // recursion level |
200 | U32 depth; // recursion level |
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201 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
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202 | UV stringref_idx; |
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203 | HV *shareable; // ptr => index, or 0 |
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204 | UV shareable_idx; |
115 | } enc_t; |
205 | } enc_t; |
116 | |
206 | |
117 | INLINE void |
207 | ecb_inline void |
118 | need (enc_t *enc, STRLEN len) |
208 | need (enc_t *enc, STRLEN len) |
119 | { |
209 | { |
120 | if (expect_false (enc->cur + len >= enc->end)) |
210 | if (ecb_expect_false (enc->cur + len >= enc->end)) |
121 | { |
211 | { |
122 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
212 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
123 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
213 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
124 | enc->cur = SvPVX (enc->sv) + cur; |
214 | enc->cur = SvPVX (enc->sv) + cur; |
125 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
215 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
126 | } |
216 | } |
127 | } |
217 | } |
128 | |
218 | |
129 | INLINE void |
219 | ecb_inline void |
130 | encode_ch (enc_t *enc, char ch) |
220 | encode_ch (enc_t *enc, char ch) |
131 | { |
221 | { |
132 | need (enc, 1); |
222 | need (enc, 1); |
133 | *enc->cur++ = ch; |
223 | *enc->cur++ = ch; |
134 | } |
224 | } |
… | |
… | |
136 | static void |
226 | static void |
137 | encode_uint (enc_t *enc, int major, UV len) |
227 | encode_uint (enc_t *enc, int major, UV len) |
138 | { |
228 | { |
139 | need (enc, 9); |
229 | need (enc, 9); |
140 | |
230 | |
141 | if (len < 24) |
231 | if (ecb_expect_true (len < LENGTH_EXT1)) |
142 | *enc->cur++ = major | len; |
232 | *enc->cur++ = major | len; |
143 | else if (len < 0x100) |
233 | else if (ecb_expect_true (len <= 0xff)) |
144 | { |
234 | { |
145 | *enc->cur++ = major | 24; |
235 | *enc->cur++ = major | LENGTH_EXT1; |
146 | *enc->cur++ = len; |
236 | *enc->cur++ = len; |
147 | } |
237 | } |
148 | else if (len < 0x10000) |
238 | else if (len <= 0xffff) |
149 | { |
239 | { |
150 | *enc->cur++ = major | 25; |
240 | *enc->cur++ = major | LENGTH_EXT2; |
151 | *enc->cur++ = len >> 8; |
241 | *enc->cur++ = len >> 8; |
152 | *enc->cur++ = len; |
242 | *enc->cur++ = len; |
153 | } |
243 | } |
154 | else if (len < 0x100000000) |
244 | else if (len <= 0xffffffff) |
155 | { |
245 | { |
156 | *enc->cur++ = major | 26; |
246 | *enc->cur++ = major | LENGTH_EXT4; |
157 | *enc->cur++ = len >> 24; |
247 | *enc->cur++ = len >> 24; |
158 | *enc->cur++ = len >> 16; |
248 | *enc->cur++ = len >> 16; |
159 | *enc->cur++ = len >> 8; |
249 | *enc->cur++ = len >> 8; |
160 | *enc->cur++ = len; |
250 | *enc->cur++ = len; |
161 | } |
251 | } |
162 | else if (len) |
252 | else |
163 | { |
253 | { |
164 | *enc->cur++ = major | 27; |
254 | *enc->cur++ = major | LENGTH_EXT8; |
165 | *enc->cur++ = len >> 56; |
255 | *enc->cur++ = len >> 56; |
166 | *enc->cur++ = len >> 48; |
256 | *enc->cur++ = len >> 48; |
167 | *enc->cur++ = len >> 40; |
257 | *enc->cur++ = len >> 40; |
168 | *enc->cur++ = len >> 32; |
258 | *enc->cur++ = len >> 32; |
169 | *enc->cur++ = len >> 24; |
259 | *enc->cur++ = len >> 24; |
… | |
… | |
171 | *enc->cur++ = len >> 8; |
261 | *enc->cur++ = len >> 8; |
172 | *enc->cur++ = len; |
262 | *enc->cur++ = len; |
173 | } |
263 | } |
174 | } |
264 | } |
175 | |
265 | |
176 | static void |
266 | ecb_inline void |
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267 | encode_tag (enc_t *enc, UV tag) |
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268 | { |
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269 | encode_uint (enc, MAJOR_TAG, tag); |
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270 | } |
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271 | |
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272 | ecb_inline void |
177 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
273 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
178 | { |
274 | { |
179 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
275 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
180 | need (enc, len); |
276 | need (enc, len); |
181 | memcpy (enc->cur, str, len); |
277 | memcpy (enc->cur, str, len); |
182 | enc->cur += len; |
278 | enc->cur += len; |
183 | } |
279 | } |
184 | |
280 | |
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281 | static void |
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282 | encode_strref (enc_t *enc, int utf8, char *str, STRLEN len) |
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283 | { |
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284 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
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285 | { |
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286 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
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287 | |
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288 | if (SvOK (*svp)) |
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289 | { |
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290 | // already registered, use stringref |
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291 | encode_tag (enc, CBOR_TAG_STRINGREF); |
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292 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
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293 | return; |
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294 | } |
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295 | else if (len >= minimum_string_length (enc->stringref_idx)) |
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296 | { |
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297 | // register only |
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298 | sv_setuv (*svp, enc->stringref_idx); |
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299 | ++enc->stringref_idx; |
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300 | } |
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301 | } |
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302 | |
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303 | encode_str (enc, utf8, str, len); |
|
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304 | } |
|
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305 | |
185 | static void encode_sv (enc_t *enc, SV *sv); |
306 | static void encode_sv (enc_t *enc, SV *sv); |
186 | |
307 | |
187 | static void |
308 | static void |
188 | encode_av (enc_t *enc, AV *av) |
309 | encode_av (enc_t *enc, AV *av) |
189 | { |
310 | { |
… | |
… | |
192 | if (enc->depth >= enc->cbor.max_depth) |
313 | if (enc->depth >= enc->cbor.max_depth) |
193 | croak (ERR_NESTING_EXCEEDED); |
314 | croak (ERR_NESTING_EXCEEDED); |
194 | |
315 | |
195 | ++enc->depth; |
316 | ++enc->depth; |
196 | |
317 | |
197 | encode_uint (enc, 0x80, len + 1); |
318 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
198 | |
319 | |
199 | for (i = 0; i <= len; ++i) |
320 | for (i = 0; i <= len; ++i) |
200 | { |
321 | { |
201 | SV **svp = av_fetch (av, i, 0); |
322 | SV **svp = av_fetch (av, i, 0); |
202 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
323 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
… | |
… | |
217 | |
338 | |
218 | int pairs = hv_iterinit (hv); |
339 | int pairs = hv_iterinit (hv); |
219 | int mg = SvMAGICAL (hv); |
340 | int mg = SvMAGICAL (hv); |
220 | |
341 | |
221 | if (mg) |
342 | if (mg) |
222 | encode_ch (enc, 0xa0 | 31); |
343 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
223 | else |
344 | else |
224 | encode_uint (enc, 0xa0, pairs); |
345 | encode_uint (enc, MAJOR_MAP, pairs); |
225 | |
346 | |
226 | while ((he = hv_iternext (hv))) |
347 | while ((he = hv_iternext (hv))) |
227 | { |
348 | { |
228 | if (HeKLEN (he) == HEf_SVKEY) |
349 | if (HeKLEN (he) == HEf_SVKEY) |
229 | encode_sv (enc, HeSVKEY (he)); |
350 | encode_sv (enc, HeSVKEY (he)); |
230 | else |
351 | else |
231 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
352 | encode_strref (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
232 | |
353 | |
233 | encode_sv (enc, expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
354 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
234 | } |
355 | } |
235 | |
356 | |
236 | if (mg) |
357 | if (mg) |
237 | encode_ch (enc, 0xe0 | 31); |
358 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
238 | |
359 | |
239 | --enc->depth; |
360 | --enc->depth; |
240 | } |
361 | } |
241 | |
362 | |
242 | // encode objects, arrays and special \0=false and \1=true values. |
363 | // encode objects, arrays and special \0=false and \1=true values. |
243 | static void |
364 | static void |
244 | encode_rv (enc_t *enc, SV *sv) |
365 | encode_rv (enc_t *enc, SV *sv) |
245 | { |
366 | { |
246 | svtype svt; |
|
|
247 | |
|
|
248 | SvGETMAGIC (sv); |
367 | SvGETMAGIC (sv); |
|
|
368 | |
249 | svt = SvTYPE (sv); |
369 | svtype svt = SvTYPE (sv); |
250 | |
370 | |
251 | if (expect_false (SvOBJECT (sv))) |
371 | if (ecb_expect_false (SvOBJECT (sv))) |
252 | { |
372 | { |
253 | HV *stash = !CBOR_SLOW || cbor_boolean_stash |
373 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
254 | ? cbor_boolean_stash |
374 | ? types_boolean_stash |
|
|
375 | : gv_stashpv ("Types::Serialiser::Boolean", 1); |
|
|
376 | HV *error_stash = !CBOR_SLOW || types_error_stash |
|
|
377 | ? types_error_stash |
|
|
378 | : gv_stashpv ("Types::Serialiser::Error", 1); |
|
|
379 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
|
|
380 | ? cbor_tagged_stash |
255 | : gv_stashpv ("CBOR::XS::Boolean", 1); |
381 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
256 | |
382 | |
257 | if (SvSTASH (sv) == stash) |
383 | HV *stash = SvSTASH (sv); |
258 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
384 | |
|
|
385 | if (stash == boolean_stash) |
|
|
386 | { |
|
|
387 | encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
|
|
388 | return; |
|
|
389 | } |
|
|
390 | else if (stash == error_stash) |
|
|
391 | { |
|
|
392 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
393 | return; |
|
|
394 | } |
|
|
395 | else if (stash == tagged_stash) |
|
|
396 | { |
|
|
397 | if (svt != SVt_PVAV) |
|
|
398 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
|
|
399 | |
|
|
400 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
|
|
401 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
|
402 | |
|
|
403 | return; |
|
|
404 | } |
|
|
405 | } |
|
|
406 | |
|
|
407 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
|
|
408 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
|
|
409 | { |
|
|
410 | if (!enc->shareable) |
|
|
411 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
412 | |
|
|
413 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
414 | |
|
|
415 | if (SvOK (*svp)) |
|
|
416 | { |
|
|
417 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
418 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
419 | return; |
|
|
420 | } |
259 | else |
421 | else |
260 | { |
422 | { |
261 | #if 0 //TODO |
423 | sv_setuv (*svp, enc->shareable_idx); |
262 | if (enc->cbor.flags & F_CONV_BLESSED) |
424 | ++enc->shareable_idx; |
|
|
425 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
426 | } |
|
|
427 | } |
|
|
428 | |
|
|
429 | if (ecb_expect_false (SvOBJECT (sv))) |
|
|
430 | { |
|
|
431 | HV *stash = SvSTASH (sv); |
|
|
432 | GV *method; |
|
|
433 | |
|
|
434 | if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
263 | { |
435 | { |
|
|
436 | dSP; |
|
|
437 | |
|
|
438 | ENTER; SAVETMPS; PUSHMARK (SP); |
264 | // we re-bless the reference to get overload and other niceties right |
439 | // we re-bless the reference to get overload and other niceties right |
265 | GV *to_cbor = gv_fetchmethod_autoload (SvSTASH (sv), "TO_CBOR", 0); |
|
|
266 | |
|
|
267 | if (to_cbor) |
|
|
268 | { |
|
|
269 | dSP; |
|
|
270 | |
|
|
271 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
272 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
440 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
273 | |
441 | |
274 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
|
275 | PUTBACK; |
442 | PUTBACK; |
|
|
443 | // G_SCALAR ensures that return value is 1 |
276 | call_sv ((SV *)GvCV (to_cbor), G_SCALAR); |
444 | call_sv ((SV *)GvCV (method), G_SCALAR); |
277 | SPAGAIN; |
445 | SPAGAIN; |
278 | |
446 | |
279 | // catch this surprisingly common error |
447 | // catch this surprisingly common error |
280 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
448 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
281 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
449 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
282 | |
450 | |
283 | sv = POPs; |
|
|
284 | PUTBACK; |
|
|
285 | |
|
|
286 | encode_sv (enc, sv); |
451 | encode_sv (enc, POPs); |
287 | |
452 | |
|
|
453 | PUTBACK; |
|
|
454 | |
288 | FREETMPS; LEAVE; |
455 | FREETMPS; LEAVE; |
289 | } |
|
|
290 | else if (enc->cbor.flags & F_ALLOW_BLESSED) |
|
|
291 | encode_str (enc, "null", 4, 0); |
|
|
292 | else |
|
|
293 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_CBOR method available on it", |
|
|
294 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
295 | } |
456 | } |
296 | else if (enc->cbor.flags & F_ALLOW_BLESSED) |
457 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
297 | encode_str (enc, "null", 4, 0); |
458 | { |
|
|
459 | dSP; |
|
|
460 | |
|
|
461 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
462 | EXTEND (SP, 2); |
|
|
463 | // we re-bless the reference to get overload and other niceties right |
|
|
464 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
|
|
465 | PUSHs (sv_cbor); |
|
|
466 | |
|
|
467 | PUTBACK; |
|
|
468 | int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
|
|
469 | SPAGAIN; |
|
|
470 | |
|
|
471 | // catch this surprisingly common error |
|
|
472 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
473 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
|
|
474 | |
|
|
475 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
|
|
476 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
|
|
477 | encode_strref (enc, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
|
|
478 | |
|
|
479 | while (count) |
|
|
480 | encode_sv (enc, SP[1 - count--]); |
|
|
481 | |
|
|
482 | PUTBACK; |
|
|
483 | |
|
|
484 | FREETMPS; LEAVE; |
|
|
485 | } |
298 | else |
486 | else |
299 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
487 | croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
300 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
488 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
301 | #endif |
|
|
302 | } |
|
|
303 | } |
489 | } |
304 | else if (svt == SVt_PVHV) |
490 | else if (svt == SVt_PVHV) |
305 | encode_hv (enc, (HV *)sv); |
491 | encode_hv (enc, (HV *)sv); |
306 | else if (svt == SVt_PVAV) |
492 | else if (svt == SVt_PVAV) |
307 | encode_av (enc, (AV *)sv); |
493 | encode_av (enc, (AV *)sv); |
308 | else if (svt < SVt_PVAV) |
|
|
309 | { |
|
|
310 | STRLEN len = 0; |
|
|
311 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
312 | |
|
|
313 | if (len == 1 && *pv == '1') |
|
|
314 | encode_ch (enc, 0xe0 | 21); |
|
|
315 | else if (len == 1 && *pv == '0') |
|
|
316 | encode_ch (enc, 0xe0 | 20); |
|
|
317 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
318 | encode_ch (enc, 0xe0 | 23); |
|
|
319 | else |
|
|
320 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
321 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
322 | } |
|
|
323 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
|
|
324 | encode_ch (enc, 0xe0 | 23); |
|
|
325 | else |
494 | else |
326 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
495 | { |
327 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
496 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
497 | encode_sv (enc, sv); |
|
|
498 | } |
328 | } |
499 | } |
329 | |
500 | |
330 | static void |
501 | static void |
331 | encode_nv (enc_t *enc, SV *sv) |
502 | encode_nv (enc_t *enc, SV *sv) |
332 | { |
503 | { |
333 | double nv = SvNVX (sv); |
504 | double nv = SvNVX (sv); |
334 | |
505 | |
335 | need (enc, 9); |
506 | need (enc, 9); |
336 | |
507 | |
337 | if (expect_false (nv == (U32)nv)) |
508 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
338 | encode_uint (enc, 0x00, (U32)nv); |
509 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
339 | //TODO: maybe I32? |
510 | //TODO: maybe I32? |
340 | else if (expect_false (nv == (float)nv)) |
511 | else if (ecb_expect_false (nv == (float)nv)) |
341 | { |
512 | { |
342 | uint32_t fp = ecb_float_to_binary32 (nv); |
513 | uint32_t fp = ecb_float_to_binary32 (nv); |
343 | |
514 | |
344 | *enc->cur++ = 0xe0 | 26; |
515 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
345 | |
516 | |
346 | if (!ecb_big_endian ()) |
517 | if (!ecb_big_endian ()) |
347 | fp = ecb_bswap32 (fp); |
518 | fp = ecb_bswap32 (fp); |
348 | |
519 | |
349 | memcpy (enc->cur, &fp, 4); |
520 | memcpy (enc->cur, &fp, 4); |
… | |
… | |
351 | } |
522 | } |
352 | else |
523 | else |
353 | { |
524 | { |
354 | uint64_t fp = ecb_double_to_binary64 (nv); |
525 | uint64_t fp = ecb_double_to_binary64 (nv); |
355 | |
526 | |
356 | *enc->cur++ = 0xe0 | 27; |
527 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
357 | |
528 | |
358 | if (!ecb_big_endian ()) |
529 | if (!ecb_big_endian ()) |
359 | fp = ecb_bswap64 (fp); |
530 | fp = ecb_bswap64 (fp); |
360 | |
531 | |
361 | memcpy (enc->cur, &fp, 8); |
532 | memcpy (enc->cur, &fp, 8); |
… | |
… | |
370 | |
541 | |
371 | if (SvPOKp (sv)) |
542 | if (SvPOKp (sv)) |
372 | { |
543 | { |
373 | STRLEN len; |
544 | STRLEN len; |
374 | char *str = SvPV (sv, len); |
545 | char *str = SvPV (sv, len); |
375 | encode_str (enc, SvUTF8 (sv), str, len); |
546 | encode_strref (enc, SvUTF8 (sv), str, len); |
376 | } |
547 | } |
377 | else if (SvNOKp (sv)) |
548 | else if (SvNOKp (sv)) |
378 | encode_nv (enc, sv); |
549 | encode_nv (enc, sv); |
379 | else if (SvIOKp (sv)) |
550 | else if (SvIOKp (sv)) |
380 | { |
551 | { |
381 | if (SvIsUV (sv)) |
552 | if (SvIsUV (sv)) |
382 | encode_uint (enc, 0x00, SvUVX (sv)); |
553 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
383 | else if (SvIVX (sv) >= 0) |
554 | else if (SvIVX (sv) >= 0) |
384 | encode_uint (enc, 0x00, SvIVX (sv)); |
555 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
385 | else |
556 | else |
386 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
557 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
387 | } |
558 | } |
388 | else if (SvROK (sv)) |
559 | else if (SvROK (sv)) |
389 | encode_rv (enc, SvRV (sv)); |
560 | encode_rv (enc, SvRV (sv)); |
390 | else if (!SvOK (sv)) |
561 | else if (!SvOK (sv)) |
391 | encode_ch (enc, 0xe0 | 22); |
562 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
392 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
563 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
393 | encode_ch (enc, 0xe0 | 23); |
564 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
394 | else |
565 | else |
395 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
566 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
396 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
567 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
397 | } |
568 | } |
398 | |
569 | |
399 | static SV * |
570 | static SV * |
400 | encode_cbor (SV *scalar, CBOR *cbor) |
571 | encode_cbor (SV *scalar, CBOR *cbor) |
401 | { |
572 | { |
402 | enc_t enc; |
573 | enc_t enc = { }; |
403 | |
574 | |
404 | enc.cbor = *cbor; |
575 | enc.cbor = *cbor; |
405 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
576 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
406 | enc.cur = SvPVX (enc.sv); |
577 | enc.cur = SvPVX (enc.sv); |
407 | enc.end = SvEND (enc.sv); |
578 | enc.end = SvEND (enc.sv); |
408 | enc.depth = 0; |
|
|
409 | |
579 | |
410 | SvPOK_only (enc.sv); |
580 | SvPOK_only (enc.sv); |
|
|
581 | |
|
|
582 | if (cbor->flags & F_PACK_STRINGS) |
|
|
583 | { |
|
|
584 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
585 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
586 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
587 | } |
|
|
588 | |
411 | encode_sv (&enc, scalar); |
589 | encode_sv (&enc, scalar); |
412 | |
590 | |
413 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
591 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
414 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
592 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
415 | |
593 | |
… | |
… | |
429 | U8 *end; // end of input string |
607 | U8 *end; // end of input string |
430 | const char *err; // parse error, if != 0 |
608 | const char *err; // parse error, if != 0 |
431 | CBOR cbor; |
609 | CBOR cbor; |
432 | U32 depth; // recursion depth |
610 | U32 depth; // recursion depth |
433 | U32 maxdepth; // recursion depth limit |
611 | U32 maxdepth; // recursion depth limit |
|
|
612 | AV *shareable; |
|
|
613 | AV *stringref; |
|
|
614 | SV *decode_tagged; |
434 | } dec_t; |
615 | } dec_t; |
435 | |
616 | |
436 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
617 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
437 | |
618 | |
438 | #define WANT(len) if (expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data"); |
619 | #define WANT(len) if (ecb_expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data") |
439 | |
620 | |
440 | #define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
621 | #define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
441 | #define DEC_DEC_DEPTH --dec->depth |
622 | #define DEC_DEC_DEPTH --dec->depth |
442 | |
623 | |
443 | static UV |
624 | static UV |
444 | decode_uint (dec_t *dec) |
625 | decode_uint (dec_t *dec) |
445 | { |
626 | { |
446 | switch (*dec->cur & 31) |
627 | U8 m = *dec->cur & MINOR_MASK; |
|
|
628 | ++dec->cur; |
|
|
629 | |
|
|
630 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
631 | return m; |
|
|
632 | |
|
|
633 | switch (m) |
447 | { |
634 | { |
448 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
635 | case LENGTH_EXT1: |
449 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
636 | WANT (1); |
450 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
637 | dec->cur += 1; |
451 | return *dec->cur++ & 31; |
638 | return dec->cur[-1]; |
452 | |
639 | |
453 | case 24: |
640 | case LENGTH_EXT2: |
454 | WANT (2); |
641 | WANT (2); |
455 | dec->cur += 2; |
642 | dec->cur += 2; |
456 | return dec->cur[-1]; |
|
|
457 | |
|
|
458 | case 25: |
|
|
459 | WANT (3); |
|
|
460 | dec->cur += 3; |
|
|
461 | return (((UV)dec->cur[-2]) << 8) |
643 | return (((UV)dec->cur[-2]) << 8) |
462 | | ((UV)dec->cur[-1]); |
644 | | ((UV)dec->cur[-1]); |
463 | |
645 | |
464 | case 26: |
646 | case LENGTH_EXT4: |
465 | WANT (5); |
647 | WANT (4); |
466 | dec->cur += 5; |
648 | dec->cur += 4; |
467 | return (((UV)dec->cur[-4]) << 24) |
649 | return (((UV)dec->cur[-4]) << 24) |
468 | | (((UV)dec->cur[-3]) << 16) |
650 | | (((UV)dec->cur[-3]) << 16) |
469 | | (((UV)dec->cur[-2]) << 8) |
651 | | (((UV)dec->cur[-2]) << 8) |
470 | | ((UV)dec->cur[-1]); |
652 | | ((UV)dec->cur[-1]); |
471 | |
653 | |
472 | case 27: |
654 | case LENGTH_EXT8: |
473 | WANT (9); |
655 | WANT (8); |
474 | dec->cur += 9; |
656 | dec->cur += 8; |
|
|
657 | |
|
|
658 | return |
|
|
659 | #if UVSIZE < 8 |
|
|
660 | 0 |
|
|
661 | #else |
475 | return (((UV)dec->cur[-8]) << 56) |
662 | (((UV)dec->cur[-8]) << 56) |
476 | | (((UV)dec->cur[-7]) << 48) |
663 | | (((UV)dec->cur[-7]) << 48) |
477 | | (((UV)dec->cur[-6]) << 40) |
664 | | (((UV)dec->cur[-6]) << 40) |
478 | | (((UV)dec->cur[-5]) << 32) |
665 | | (((UV)dec->cur[-5]) << 32) |
|
|
666 | #endif |
479 | | (((UV)dec->cur[-4]) << 24) |
667 | | (((UV)dec->cur[-4]) << 24) |
480 | | (((UV)dec->cur[-3]) << 16) |
668 | | (((UV)dec->cur[-3]) << 16) |
481 | | (((UV)dec->cur[-2]) << 8) |
669 | | (((UV)dec->cur[-2]) << 8) |
482 | | ((UV)dec->cur[-1]); |
670 | | ((UV)dec->cur[-1]); |
483 | |
671 | |
… | |
… | |
496 | { |
684 | { |
497 | AV *av = newAV (); |
685 | AV *av = newAV (); |
498 | |
686 | |
499 | DEC_INC_DEPTH; |
687 | DEC_INC_DEPTH; |
500 | |
688 | |
501 | if ((*dec->cur & 31) == 31) |
689 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
502 | { |
690 | { |
503 | ++dec->cur; |
691 | ++dec->cur; |
504 | |
692 | |
505 | for (;;) |
693 | for (;;) |
506 | { |
694 | { |
507 | WANT (1); |
695 | WANT (1); |
508 | |
696 | |
509 | if (*dec->cur == (0xe0 | 31)) |
697 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
510 | { |
698 | { |
511 | ++dec->cur; |
699 | ++dec->cur; |
512 | break; |
700 | break; |
513 | } |
701 | } |
514 | |
702 | |
… | |
… | |
532 | SvREFCNT_dec (av); |
720 | SvREFCNT_dec (av); |
533 | DEC_DEC_DEPTH; |
721 | DEC_DEC_DEPTH; |
534 | return &PL_sv_undef; |
722 | return &PL_sv_undef; |
535 | } |
723 | } |
536 | |
724 | |
|
|
725 | static void |
|
|
726 | decode_he (dec_t *dec, HV *hv) |
|
|
727 | { |
|
|
728 | // for speed reasons, we specialcase single-string |
|
|
729 | // byte or utf-8 strings as keys, but only when !stringref |
|
|
730 | |
|
|
731 | if (ecb_expect_true (!dec->stringref)) |
|
|
732 | if ((*dec->cur - MAJOR_BYTES) <= 27) |
|
|
733 | { |
|
|
734 | I32 len = decode_uint (dec); |
|
|
735 | char *key = (char *)dec->cur; |
|
|
736 | |
|
|
737 | dec->cur += len; |
|
|
738 | |
|
|
739 | if (ecb_expect_false (dec->stringref)) |
|
|
740 | av_push (dec->stringref, newSVpvn (key, len)); |
|
|
741 | |
|
|
742 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
743 | |
|
|
744 | return; |
|
|
745 | } |
|
|
746 | else if ((*dec->cur - MAJOR_TEXT) <= 27) |
|
|
747 | { |
|
|
748 | I32 len = decode_uint (dec); |
|
|
749 | char *key = (char *)dec->cur; |
|
|
750 | |
|
|
751 | dec->cur += len; |
|
|
752 | |
|
|
753 | if (ecb_expect_false (dec->stringref)) |
|
|
754 | av_push (dec->stringref, newSVpvn_utf8 (key, len, 1)); |
|
|
755 | |
|
|
756 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
757 | |
|
|
758 | return; |
|
|
759 | } |
|
|
760 | |
|
|
761 | SV *k = decode_sv (dec); |
|
|
762 | SV *v = decode_sv (dec); |
|
|
763 | |
|
|
764 | hv_store_ent (hv, k, v, 0); |
|
|
765 | SvREFCNT_dec (k); |
|
|
766 | } |
|
|
767 | |
537 | static SV * |
768 | static SV * |
538 | decode_hv (dec_t *dec) |
769 | decode_hv (dec_t *dec) |
539 | { |
770 | { |
540 | HV *hv = newHV (); |
771 | HV *hv = newHV (); |
541 | |
772 | |
542 | DEC_INC_DEPTH; |
773 | DEC_INC_DEPTH; |
543 | |
774 | |
544 | if ((*dec->cur & 31) == 31) |
775 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
545 | { |
776 | { |
546 | ++dec->cur; |
777 | ++dec->cur; |
547 | |
778 | |
548 | for (;;) |
779 | for (;;) |
549 | { |
780 | { |
550 | WANT (1); |
781 | WANT (1); |
551 | |
782 | |
552 | if (*dec->cur == (0xe0 | 31)) |
783 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
553 | { |
784 | { |
554 | ++dec->cur; |
785 | ++dec->cur; |
555 | break; |
786 | break; |
556 | } |
787 | } |
557 | |
788 | |
558 | SV *k = decode_sv (dec); |
789 | decode_he (dec, hv); |
559 | SV *v = decode_sv (dec); |
|
|
560 | |
|
|
561 | hv_store_ent (hv, k, v, 0); |
|
|
562 | } |
790 | } |
563 | } |
791 | } |
564 | else |
792 | else |
565 | { |
793 | { |
566 | int len = decode_uint (dec); |
794 | int pairs = decode_uint (dec); |
567 | |
795 | |
568 | while (len--) |
796 | while (pairs--) |
569 | { |
797 | decode_he (dec, hv); |
570 | SV *k = decode_sv (dec); |
|
|
571 | SV *v = decode_sv (dec); |
|
|
572 | |
|
|
573 | hv_store_ent (hv, k, v, 0); |
|
|
574 | } |
|
|
575 | } |
798 | } |
576 | |
799 | |
577 | DEC_DEC_DEPTH; |
800 | DEC_DEC_DEPTH; |
578 | return newRV_noinc ((SV *)hv); |
801 | return newRV_noinc ((SV *)hv); |
579 | |
|
|
580 | #if 0 |
|
|
581 | SV *sv; |
|
|
582 | HV *hv = newHV (); |
|
|
583 | |
|
|
584 | DEC_INC_DEPTH; |
|
|
585 | decode_ws (dec); |
|
|
586 | |
|
|
587 | for (;;) |
|
|
588 | { |
|
|
589 | // heuristic: assume that |
|
|
590 | // a) decode_str + hv_store_ent are abysmally slow. |
|
|
591 | // b) most hash keys are short, simple ascii text. |
|
|
592 | // => try to "fast-match" such strings to avoid |
|
|
593 | // the overhead of decode_str + hv_store_ent. |
|
|
594 | { |
|
|
595 | SV *value; |
|
|
596 | char *p = dec->cur; |
|
|
597 | char *e = p + 24; // only try up to 24 bytes |
|
|
598 | |
|
|
599 | for (;;) |
|
|
600 | { |
|
|
601 | // the >= 0x80 is false on most architectures |
|
|
602 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
|
|
603 | { |
|
|
604 | // slow path, back up and use decode_str |
|
|
605 | SV *key = decode_str (dec); |
|
|
606 | if (!key) |
|
|
607 | goto fail; |
|
|
608 | |
|
|
609 | decode_ws (dec); EXPECT_CH (':'); |
|
|
610 | |
|
|
611 | decode_ws (dec); |
|
|
612 | value = decode_sv (dec); |
|
|
613 | if (!value) |
|
|
614 | { |
|
|
615 | SvREFCNT_dec (key); |
|
|
616 | goto fail; |
|
|
617 | } |
|
|
618 | |
|
|
619 | hv_store_ent (hv, key, value, 0); |
|
|
620 | SvREFCNT_dec (key); |
|
|
621 | |
|
|
622 | break; |
|
|
623 | } |
|
|
624 | else if (*p == '"') |
|
|
625 | { |
|
|
626 | // fast path, got a simple key |
|
|
627 | char *key = dec->cur; |
|
|
628 | int len = p - key; |
|
|
629 | dec->cur = p + 1; |
|
|
630 | |
|
|
631 | decode_ws (dec); EXPECT_CH (':'); |
|
|
632 | |
|
|
633 | decode_ws (dec); |
|
|
634 | value = decode_sv (dec); |
|
|
635 | if (!value) |
|
|
636 | goto fail; |
|
|
637 | |
|
|
638 | hv_store (hv, key, len, value, 0); |
|
|
639 | |
|
|
640 | break; |
|
|
641 | } |
|
|
642 | |
|
|
643 | ++p; |
|
|
644 | } |
|
|
645 | } |
|
|
646 | |
|
|
647 | decode_ws (dec); |
|
|
648 | |
|
|
649 | if (*dec->cur == '}') |
|
|
650 | { |
|
|
651 | ++dec->cur; |
|
|
652 | break; |
|
|
653 | } |
|
|
654 | |
|
|
655 | if (*dec->cur != ',') |
|
|
656 | ERR (", or } expected while parsing object/hash"); |
|
|
657 | |
|
|
658 | ++dec->cur; |
|
|
659 | |
|
|
660 | decode_ws (dec); |
|
|
661 | |
|
|
662 | if (*dec->cur == '}' && dec->cbor.flags & F_RELAXED) |
|
|
663 | { |
|
|
664 | ++dec->cur; |
|
|
665 | break; |
|
|
666 | } |
|
|
667 | } |
|
|
668 | |
|
|
669 | DEC_DEC_DEPTH; |
|
|
670 | sv = newRV_noinc ((SV *)hv); |
|
|
671 | |
|
|
672 | // check filter callbacks |
|
|
673 | if (dec->cbor.flags & F_HOOK) |
|
|
674 | { |
|
|
675 | if (dec->cbor.cb_sk_object && HvKEYS (hv) == 1) |
|
|
676 | { |
|
|
677 | HE *cb, *he; |
|
|
678 | |
|
|
679 | hv_iterinit (hv); |
|
|
680 | he = hv_iternext (hv); |
|
|
681 | hv_iterinit (hv); |
|
|
682 | |
|
|
683 | // the next line creates a mortal sv each time its called. |
|
|
684 | // might want to optimise this for common cases. |
|
|
685 | cb = hv_fetch_ent (dec->cbor.cb_sk_object, hv_iterkeysv (he), 0, 0); |
|
|
686 | |
|
|
687 | if (cb) |
|
|
688 | { |
|
|
689 | dSP; |
|
|
690 | int count; |
|
|
691 | |
|
|
692 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
693 | XPUSHs (HeVAL (he)); |
|
|
694 | sv_2mortal (sv); |
|
|
695 | |
|
|
696 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
|
|
697 | |
|
|
698 | if (count == 1) |
|
|
699 | { |
|
|
700 | sv = newSVsv (POPs); |
|
|
701 | FREETMPS; LEAVE; |
|
|
702 | return sv; |
|
|
703 | } |
|
|
704 | |
|
|
705 | SvREFCNT_inc (sv); |
|
|
706 | FREETMPS; LEAVE; |
|
|
707 | } |
|
|
708 | } |
|
|
709 | |
|
|
710 | if (dec->cbor.cb_object) |
|
|
711 | { |
|
|
712 | dSP; |
|
|
713 | int count; |
|
|
714 | |
|
|
715 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
716 | XPUSHs (sv_2mortal (sv)); |
|
|
717 | |
|
|
718 | PUTBACK; count = call_sv (dec->cbor.cb_object, G_ARRAY); SPAGAIN; |
|
|
719 | |
|
|
720 | if (count == 1) |
|
|
721 | { |
|
|
722 | sv = newSVsv (POPs); |
|
|
723 | FREETMPS; LEAVE; |
|
|
724 | return sv; |
|
|
725 | } |
|
|
726 | |
|
|
727 | SvREFCNT_inc (sv); |
|
|
728 | FREETMPS; LEAVE; |
|
|
729 | } |
|
|
730 | } |
|
|
731 | |
|
|
732 | return sv; |
|
|
733 | #endif |
|
|
734 | |
802 | |
735 | fail: |
803 | fail: |
736 | SvREFCNT_dec (hv); |
804 | SvREFCNT_dec (hv); |
737 | DEC_DEC_DEPTH; |
805 | DEC_DEC_DEPTH; |
738 | return &PL_sv_undef; |
806 | return &PL_sv_undef; |
739 | } |
807 | } |
740 | |
808 | |
741 | static SV * |
809 | static SV * |
742 | decode_str (dec_t *dec, int utf8) |
810 | decode_str (dec_t *dec, int utf8) |
743 | { |
811 | { |
744 | SV *sv; |
812 | SV *sv = 0; |
745 | |
813 | |
746 | if ((*dec->cur & 31) == 31) |
814 | if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
747 | { |
815 | { |
|
|
816 | // indefinite length strings |
748 | ++dec->cur; |
817 | ++dec->cur; |
749 | |
818 | |
|
|
819 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
820 | |
750 | sv = newSVpvn ("", 0); |
821 | sv = newSVpvn ("", 0); |
751 | |
822 | |
752 | // not very fast, and certainly not robust against illegal input |
|
|
753 | for (;;) |
823 | for (;;) |
754 | { |
824 | { |
755 | WANT (1); |
825 | WANT (1); |
756 | |
826 | |
757 | if (*dec->cur == (0xe0 | 31)) |
827 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
828 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
758 | { |
829 | { |
759 | ++dec->cur; |
830 | ++dec->cur; |
760 | break; |
831 | break; |
761 | } |
832 | } |
|
|
833 | else |
|
|
834 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
762 | |
835 | |
763 | SV *sv2 = decode_sv (dec); |
836 | STRLEN len = decode_uint (dec); |
764 | sv_catsv (sv, sv2); |
837 | |
|
|
838 | WANT (len); |
|
|
839 | sv_catpvn (sv, dec->cur, len); |
|
|
840 | dec->cur += len; |
765 | } |
841 | } |
766 | } |
842 | } |
767 | else |
843 | else |
768 | { |
844 | { |
769 | STRLEN len = decode_uint (dec); |
845 | STRLEN len = decode_uint (dec); |
770 | |
846 | |
771 | WANT (len); |
847 | WANT (len); |
772 | sv = newSVpvn (dec->cur, len); |
848 | sv = newSVpvn (dec->cur, len); |
773 | dec->cur += len; |
849 | dec->cur += len; |
|
|
850 | |
|
|
851 | if (ecb_expect_false (dec->stringref) |
|
|
852 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
853 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
774 | } |
854 | } |
775 | |
855 | |
776 | if (utf8) |
856 | if (utf8) |
777 | SvUTF8_on (sv); |
857 | SvUTF8_on (sv); |
778 | |
858 | |
779 | return sv; |
859 | return sv; |
780 | |
860 | |
781 | fail: |
861 | fail: |
|
|
862 | SvREFCNT_dec (sv); |
|
|
863 | return &PL_sv_undef; |
|
|
864 | } |
|
|
865 | |
|
|
866 | static SV * |
|
|
867 | decode_tagged (dec_t *dec) |
|
|
868 | { |
|
|
869 | SV *sv = 0; |
|
|
870 | UV tag = decode_uint (dec); |
|
|
871 | |
|
|
872 | WANT (1); |
|
|
873 | |
|
|
874 | switch (tag) |
|
|
875 | { |
|
|
876 | case CBOR_TAG_MAGIC: |
|
|
877 | sv = decode_sv (dec); |
|
|
878 | break; |
|
|
879 | |
|
|
880 | case CBOR_TAG_INDIRECTION: |
|
|
881 | sv = newRV_noinc (decode_sv (dec)); |
|
|
882 | break; |
|
|
883 | |
|
|
884 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
885 | { |
|
|
886 | ENTER; SAVETMPS; |
|
|
887 | |
|
|
888 | SAVESPTR (dec->stringref); |
|
|
889 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
890 | |
|
|
891 | sv = decode_sv (dec); |
|
|
892 | |
|
|
893 | FREETMPS; LEAVE; |
|
|
894 | } |
|
|
895 | break; |
|
|
896 | |
|
|
897 | case CBOR_TAG_STRINGREF: |
|
|
898 | { |
|
|
899 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
900 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
901 | |
|
|
902 | UV idx = decode_uint (dec); |
|
|
903 | |
|
|
904 | if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
|
|
905 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
906 | |
|
|
907 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
908 | } |
|
|
909 | break; |
|
|
910 | |
|
|
911 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
912 | { |
|
|
913 | if (ecb_expect_false (!dec->shareable)) |
|
|
914 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
915 | |
|
|
916 | sv = newSV (0); |
|
|
917 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
918 | |
|
|
919 | SV *osv = decode_sv (dec); |
|
|
920 | sv_setsv (sv, osv); |
|
|
921 | SvREFCNT_dec_NN (osv); |
|
|
922 | } |
|
|
923 | break; |
|
|
924 | |
|
|
925 | case CBOR_TAG_VALUE_SHAREDREF: |
|
|
926 | { |
|
|
927 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
928 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
929 | |
|
|
930 | UV idx = decode_uint (dec); |
|
|
931 | |
|
|
932 | if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
|
|
933 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
934 | |
|
|
935 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
936 | } |
|
|
937 | break; |
|
|
938 | |
|
|
939 | case CBOR_TAG_PERL_OBJECT: |
|
|
940 | { |
|
|
941 | sv = decode_sv (dec); |
|
|
942 | |
|
|
943 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
|
|
944 | ERR ("corrupted CBOR data (non-array perl object)"); |
|
|
945 | |
|
|
946 | AV *av = (AV *)SvRV (sv); |
|
|
947 | int len = av_len (av) + 1; |
|
|
948 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
|
|
949 | |
|
|
950 | if (!stash) |
|
|
951 | ERR ("cannot decode perl-object (package does not exist)"); |
|
|
952 | |
|
|
953 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
|
|
954 | |
|
|
955 | if (!method) |
|
|
956 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
|
|
957 | |
|
|
958 | dSP; |
|
|
959 | |
|
|
960 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
961 | EXTEND (SP, len + 1); |
|
|
962 | // we re-bless the reference to get overload and other niceties right |
|
|
963 | PUSHs (*av_fetch (av, 0, 1)); |
|
|
964 | PUSHs (sv_cbor); |
|
|
965 | |
|
|
966 | int i; |
|
|
967 | |
|
|
968 | for (i = 1; i < len; ++i) |
|
|
969 | PUSHs (*av_fetch (av, i, 1)); |
|
|
970 | |
|
|
971 | PUTBACK; |
|
|
972 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
|
|
973 | SPAGAIN; |
|
|
974 | |
|
|
975 | if (SvTRUE (ERRSV)) |
|
|
976 | { |
|
|
977 | FREETMPS; LEAVE; |
|
|
978 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
979 | } |
|
|
980 | |
|
|
981 | SvREFCNT_dec (sv); |
|
|
982 | sv = SvREFCNT_inc (POPs); |
|
|
983 | |
|
|
984 | PUTBACK; |
|
|
985 | |
|
|
986 | FREETMPS; LEAVE; |
|
|
987 | } |
|
|
988 | break; |
|
|
989 | |
|
|
990 | default: |
|
|
991 | { |
|
|
992 | sv = decode_sv (dec); |
|
|
993 | |
|
|
994 | dSP; |
|
|
995 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
996 | EXTEND (SP, 2); |
|
|
997 | PUSHs (newSVuv (tag)); |
|
|
998 | PUSHs (sv); |
|
|
999 | |
|
|
1000 | PUTBACK; |
|
|
1001 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
1002 | SPAGAIN; |
|
|
1003 | |
|
|
1004 | if (SvTRUE (ERRSV)) |
|
|
1005 | { |
|
|
1006 | FREETMPS; LEAVE; |
|
|
1007 | ERR (SvPVutf8_nolen (sv_2mortal (SvREFCNT_inc (ERRSV)))); |
|
|
1008 | } |
|
|
1009 | |
|
|
1010 | if (count) |
|
|
1011 | { |
|
|
1012 | SvREFCNT_dec (sv); |
|
|
1013 | sv = SvREFCNT_inc (POPs); |
|
|
1014 | } |
|
|
1015 | else |
|
|
1016 | { |
|
|
1017 | AV *av = newAV (); |
|
|
1018 | av_push (av, newSVuv (tag)); |
|
|
1019 | av_push (av, sv); |
|
|
1020 | |
|
|
1021 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
|
|
1022 | ? cbor_tagged_stash |
|
|
1023 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
|
|
1024 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
1025 | } |
|
|
1026 | |
|
|
1027 | PUTBACK; |
|
|
1028 | |
|
|
1029 | FREETMPS; LEAVE; |
|
|
1030 | } |
|
|
1031 | break; |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | return sv; |
|
|
1035 | |
|
|
1036 | fail: |
|
|
1037 | SvREFCNT_dec (sv); |
782 | return &PL_sv_undef; |
1038 | return &PL_sv_undef; |
783 | } |
1039 | } |
784 | |
1040 | |
785 | static SV * |
1041 | static SV * |
786 | decode_sv (dec_t *dec) |
1042 | decode_sv (dec_t *dec) |
787 | { |
1043 | { |
788 | WANT (1); |
1044 | WANT (1); |
789 | |
1045 | |
790 | switch (*dec->cur >> 5) |
1046 | switch (*dec->cur >> MAJOR_SHIFT) |
791 | { |
1047 | { |
792 | case 0: // unsigned int |
1048 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
793 | //TODO: 64 bit values on 3 2bit perls |
1049 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
794 | return newSVuv (decode_uint (dec)); |
1050 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
795 | case 1: // negative int |
1051 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
796 | return newSViv (-1 - (IV)decode_uint (dec)); |
1052 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
797 | case 2: // octet string |
1053 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
798 | return decode_str (dec, 0); |
1054 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
799 | case 3: // utf-8 string |
1055 | |
800 | return decode_str (dec, 1); |
1056 | case MAJOR_MISC >> MAJOR_SHIFT: |
801 | case 4: // array |
|
|
802 | return decode_av (dec); |
|
|
803 | case 5: // map |
|
|
804 | return decode_hv (dec); |
|
|
805 | case 6: // tag |
|
|
806 | abort (); |
|
|
807 | break; |
|
|
808 | case 7: // misc |
|
|
809 | switch (*dec->cur++ & 31) |
1057 | switch (*dec->cur++ & MINOR_MASK) |
810 | { |
1058 | { |
811 | case 20: |
1059 | case SIMPLE_FALSE: |
812 | #if CBOR_SLOW |
1060 | #if CBOR_SLOW |
813 | cbor_false = get_bool ("CBOR::XS::false"); |
1061 | types_false = get_bool ("Types::Serialiser::false"); |
814 | #endif |
1062 | #endif |
815 | return newSVsv (cbor_false); |
1063 | return newSVsv (types_false); |
816 | case 21: |
1064 | case SIMPLE_TRUE: |
817 | #if CBOR_SLOW |
1065 | #if CBOR_SLOW |
818 | cbor_true = get_bool ("CBOR::XS::true"); |
1066 | types_true = get_bool ("Types::Serialiser::true"); |
819 | #endif |
1067 | #endif |
820 | return newSVsv (cbor_true); |
1068 | return newSVsv (types_true); |
821 | case 22: |
1069 | case SIMPLE_NULL: |
822 | return newSVsv (&PL_sv_undef); |
1070 | return newSVsv (&PL_sv_undef); |
|
|
1071 | case SIMPLE_UNDEF: |
|
|
1072 | #if CBOR_SLOW |
|
|
1073 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1074 | #endif |
|
|
1075 | return newSVsv (types_error); |
823 | |
1076 | |
824 | case 25: |
1077 | case MISC_FLOAT16: |
825 | { |
1078 | { |
826 | WANT (2); |
1079 | WANT (2); |
827 | |
1080 | |
828 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1081 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
829 | dec->cur += 2; |
1082 | dec->cur += 2; |
830 | |
1083 | |
831 | return newSVnv (ecb_binary16_to_float (fp)); |
1084 | return newSVnv (ecb_binary16_to_float (fp)); |
832 | } |
1085 | } |
833 | |
1086 | |
834 | case 26: |
1087 | case MISC_FLOAT32: |
835 | { |
1088 | { |
836 | uint32_t fp; |
1089 | uint32_t fp; |
837 | WANT (4); |
1090 | WANT (4); |
838 | memcpy (&fp, dec->cur, 4); |
1091 | memcpy (&fp, dec->cur, 4); |
839 | dec->cur += 4; |
1092 | dec->cur += 4; |
… | |
… | |
842 | fp = ecb_bswap32 (fp); |
1095 | fp = ecb_bswap32 (fp); |
843 | |
1096 | |
844 | return newSVnv (ecb_binary32_to_float (fp)); |
1097 | return newSVnv (ecb_binary32_to_float (fp)); |
845 | } |
1098 | } |
846 | |
1099 | |
847 | case 27: |
1100 | case MISC_FLOAT64: |
848 | { |
1101 | { |
849 | uint64_t fp; |
1102 | uint64_t fp; |
850 | WANT (8); |
1103 | WANT (8); |
851 | memcpy (&fp, dec->cur, 8); |
1104 | memcpy (&fp, dec->cur, 8); |
852 | dec->cur += 8; |
1105 | dec->cur += 8; |
… | |
… | |
855 | fp = ecb_bswap64 (fp); |
1108 | fp = ecb_bswap64 (fp); |
856 | |
1109 | |
857 | return newSVnv (ecb_binary64_to_double (fp)); |
1110 | return newSVnv (ecb_binary64_to_double (fp)); |
858 | } |
1111 | } |
859 | |
1112 | |
860 | // 0..19 unassigned |
1113 | // 0..19 unassigned simple |
861 | // 24 reserved + unassigned (reserved values are not encodable) |
1114 | // 24 reserved + unassigned (reserved values are not encodable) |
862 | default: |
1115 | default: |
863 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1116 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
864 | } |
1117 | } |
865 | |
1118 | |
866 | break; |
1119 | break; |
867 | } |
1120 | } |
868 | #if 0 |
|
|
869 | switch (*dec->cur) |
|
|
870 | { |
|
|
871 | //case '"': ++dec->cur; return decode_str (dec); |
|
|
872 | case '[': ++dec->cur; return decode_av (dec); |
|
|
873 | case '{': ++dec->cur; return decode_hv (dec); |
|
|
874 | |
|
|
875 | case '-': |
|
|
876 | case '0': case '1': case '2': case '3': case '4': |
|
|
877 | case '5': case '6': case '7': case '8': case '9': |
|
|
878 | //TODO return decode_num (dec); |
|
|
879 | |
|
|
880 | case 't': |
|
|
881 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
|
|
882 | { |
|
|
883 | dec->cur += 4; |
|
|
884 | #if CBOR_SLOW |
|
|
885 | cbor_true = get_bool ("CBOR::XS::true"); |
|
|
886 | #endif |
|
|
887 | return newSVsv (cbor_true); |
|
|
888 | } |
|
|
889 | else |
|
|
890 | ERR ("'true' expected"); |
|
|
891 | |
|
|
892 | break; |
|
|
893 | |
|
|
894 | case 'f': |
|
|
895 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
|
|
896 | { |
|
|
897 | dec->cur += 5; |
|
|
898 | #if CBOR_SLOW |
|
|
899 | cbor_false = get_bool ("CBOR::XS::false"); |
|
|
900 | #endif |
|
|
901 | return newSVsv (cbor_false); |
|
|
902 | } |
|
|
903 | else |
|
|
904 | ERR ("'false' expected"); |
|
|
905 | |
|
|
906 | break; |
|
|
907 | |
|
|
908 | case 'n': |
|
|
909 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4)) |
|
|
910 | { |
|
|
911 | dec->cur += 4; |
|
|
912 | return newSVsv (&PL_sv_undef); |
|
|
913 | } |
|
|
914 | else |
|
|
915 | ERR ("'null' expected"); |
|
|
916 | |
|
|
917 | break; |
|
|
918 | |
|
|
919 | default: |
|
|
920 | ERR ("malformed CBOR string, neither array, object, number, string or atom"); |
|
|
921 | break; |
|
|
922 | } |
|
|
923 | #endif |
|
|
924 | |
1121 | |
925 | fail: |
1122 | fail: |
926 | return &PL_sv_undef; |
1123 | return &PL_sv_undef; |
927 | } |
1124 | } |
928 | |
1125 | |
929 | static SV * |
1126 | static SV * |
930 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1127 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
931 | { |
1128 | { |
932 | dec_t dec; |
1129 | dec_t dec = { }; |
933 | SV *sv; |
1130 | SV *sv; |
|
|
1131 | STRLEN len; |
|
|
1132 | char *data = SvPVbyte (string, len); |
934 | |
1133 | |
935 | /* work around bugs in 5.10 where manipulating magic values |
|
|
936 | * makes perl ignore the magic in subsequent accesses. |
|
|
937 | * also make a copy of non-PV values, to get them into a clean |
|
|
938 | * state (SvPV should do that, but it's buggy, see below). |
|
|
939 | */ |
|
|
940 | /*SvGETMAGIC (string);*/ |
|
|
941 | if (SvMAGICAL (string) || !SvPOK (string)) |
|
|
942 | string = sv_2mortal (newSVsv (string)); |
|
|
943 | |
|
|
944 | SvUPGRADE (string, SVt_PV); |
|
|
945 | |
|
|
946 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
947 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
948 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
949 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
950 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
951 | * and hope for the best. |
|
|
952 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
953 | * assertion business is seriously broken, try yet another workaround |
|
|
954 | * for the broken -DDEBUGGING. |
|
|
955 | */ |
|
|
956 | { |
|
|
957 | #ifdef DEBUGGING |
|
|
958 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
959 | #else |
|
|
960 | STRLEN offset = SvCUR (string); |
|
|
961 | #endif |
|
|
962 | |
|
|
963 | if (offset > cbor->max_size && cbor->max_size) |
1134 | if (len > cbor->max_size && cbor->max_size) |
964 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1135 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
965 | (unsigned long)SvCUR (string), (unsigned long)cbor->max_size); |
1136 | (unsigned long)len, (unsigned long)cbor->max_size); |
966 | } |
|
|
967 | |
|
|
968 | sv_utf8_downgrade (string, 0); |
|
|
969 | |
1137 | |
970 | dec.cbor = *cbor; |
1138 | dec.cbor = *cbor; |
971 | dec.cur = (U8 *)SvPVX (string); |
1139 | dec.cur = (U8 *)data; |
972 | dec.end = (U8 *)SvEND (string); |
1140 | dec.end = (U8 *)data + len; |
973 | dec.err = 0; |
|
|
974 | dec.depth = 0; |
|
|
975 | |
|
|
976 | if (dec.cbor.cb_object || dec.cbor.cb_sk_object) |
|
|
977 | ;//TODO dec.cbor.flags |= F_HOOK; |
|
|
978 | |
1141 | |
979 | sv = decode_sv (&dec); |
1142 | sv = decode_sv (&dec); |
980 | |
1143 | |
981 | if (offset_return) |
1144 | if (offset_return) |
982 | *offset_return = dec.cur; |
1145 | *offset_return = dec.cur; |
… | |
… | |
986 | dec.err = "garbage after CBOR object"; |
1149 | dec.err = "garbage after CBOR object"; |
987 | |
1150 | |
988 | if (dec.err) |
1151 | if (dec.err) |
989 | { |
1152 | { |
990 | SvREFCNT_dec (sv); |
1153 | SvREFCNT_dec (sv); |
991 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1154 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
992 | } |
1155 | } |
993 | |
1156 | |
994 | sv = sv_2mortal (sv); |
1157 | sv = sv_2mortal (sv); |
995 | |
1158 | |
996 | return sv; |
1159 | return sv; |
… | |
… | |
1002 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1165 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1003 | |
1166 | |
1004 | BOOT: |
1167 | BOOT: |
1005 | { |
1168 | { |
1006 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1169 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1007 | cbor_boolean_stash = gv_stashpv ("CBOR::XS::Boolean", 1); |
1170 | cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1008 | |
1171 | |
1009 | cbor_true = get_bool ("CBOR::XS::true"); |
1172 | types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
1010 | cbor_false = get_bool ("CBOR::XS::false"); |
1173 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
|
|
1174 | |
|
|
1175 | types_true = get_bool ("Types::Serialiser::true" ); |
|
|
1176 | types_false = get_bool ("Types::Serialiser::false"); |
|
|
1177 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1178 | |
|
|
1179 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
|
|
1180 | |
|
|
1181 | sv_cbor = newSVpv ("CBOR", 0); |
|
|
1182 | SvREADONLY_on (sv_cbor); |
1011 | } |
1183 | } |
1012 | |
1184 | |
1013 | PROTOTYPES: DISABLE |
1185 | PROTOTYPES: DISABLE |
1014 | |
1186 | |
1015 | void CLONE (...) |
1187 | void CLONE (...) |
1016 | CODE: |
1188 | CODE: |
1017 | cbor_stash = 0; |
1189 | cbor_stash = 0; |
|
|
1190 | cbor_tagged_stash = 0; |
|
|
1191 | types_error_stash = 0; |
1018 | cbor_boolean_stash = 0; |
1192 | types_boolean_stash = 0; |
1019 | |
1193 | |
1020 | void new (char *klass) |
1194 | void new (char *klass) |
1021 | PPCODE: |
1195 | PPCODE: |
1022 | { |
1196 | { |
1023 | SV *pv = NEWSV (0, sizeof (CBOR)); |
1197 | SV *pv = NEWSV (0, sizeof (CBOR)); |
… | |
… | |
1031 | |
1205 | |
1032 | void shrink (CBOR *self, int enable = 1) |
1206 | void shrink (CBOR *self, int enable = 1) |
1033 | ALIAS: |
1207 | ALIAS: |
1034 | shrink = F_SHRINK |
1208 | shrink = F_SHRINK |
1035 | allow_unknown = F_ALLOW_UNKNOWN |
1209 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1210 | allow_sharing = F_ALLOW_SHARING |
|
|
1211 | pack_strings = F_PACK_STRINGS |
1036 | PPCODE: |
1212 | PPCODE: |
1037 | { |
1213 | { |
1038 | if (enable) |
1214 | if (enable) |
1039 | self->flags |= ix; |
1215 | self->flags |= ix; |
1040 | else |
1216 | else |
… | |
… | |
1045 | |
1221 | |
1046 | void get_shrink (CBOR *self) |
1222 | void get_shrink (CBOR *self) |
1047 | ALIAS: |
1223 | ALIAS: |
1048 | get_shrink = F_SHRINK |
1224 | get_shrink = F_SHRINK |
1049 | get_allow_unknown = F_ALLOW_UNKNOWN |
1225 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1226 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1227 | get_pack_strings = F_PACK_STRINGS |
1050 | PPCODE: |
1228 | PPCODE: |
1051 | XPUSHs (boolSV (self->flags & ix)); |
1229 | XPUSHs (boolSV (self->flags & ix)); |
1052 | |
1230 | |
1053 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1231 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1054 | PPCODE: |
1232 | PPCODE: |
… | |
… | |
1070 | CODE: |
1248 | CODE: |
1071 | RETVAL = self->max_size; |
1249 | RETVAL = self->max_size; |
1072 | OUTPUT: |
1250 | OUTPUT: |
1073 | RETVAL |
1251 | RETVAL |
1074 | |
1252 | |
1075 | #if 0 //TODO |
1253 | void filter (CBOR *self, SV *filter = 0) |
1076 | |
|
|
1077 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
1078 | PPCODE: |
1254 | PPCODE: |
1079 | { |
|
|
1080 | SvREFCNT_dec (self->cb_object); |
1255 | SvREFCNT_dec (self->filter); |
1081 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1256 | self->filter = filter ? newSVsv (filter) : filter; |
1082 | |
|
|
1083 | XPUSHs (ST (0)); |
1257 | XPUSHs (ST (0)); |
1084 | } |
|
|
1085 | |
1258 | |
1086 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
1259 | SV *get_filter (CBOR *self) |
1087 | PPCODE: |
1260 | CODE: |
1088 | { |
1261 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1089 | if (!self->cb_sk_object) |
1262 | OUTPUT: |
1090 | self->cb_sk_object = newHV (); |
1263 | RETVAL |
1091 | |
|
|
1092 | if (SvOK (cb)) |
|
|
1093 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1094 | else |
|
|
1095 | { |
|
|
1096 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1097 | |
|
|
1098 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1099 | { |
|
|
1100 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1101 | self->cb_sk_object = 0; |
|
|
1102 | } |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | XPUSHs (ST (0)); |
|
|
1106 | } |
|
|
1107 | |
|
|
1108 | #endif |
|
|
1109 | |
1264 | |
1110 | void encode (CBOR *self, SV *scalar) |
1265 | void encode (CBOR *self, SV *scalar) |
1111 | PPCODE: |
1266 | PPCODE: |
1112 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1267 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1113 | XPUSHs (scalar); |
1268 | XPUSHs (scalar); |
… | |
… | |
1127 | PUSHs (sv); |
1282 | PUSHs (sv); |
1128 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1283 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1129 | } |
1284 | } |
1130 | |
1285 | |
1131 | void DESTROY (CBOR *self) |
1286 | void DESTROY (CBOR *self) |
1132 | CODE: |
1287 | PPCODE: |
1133 | SvREFCNT_dec (self->cb_sk_object); |
1288 | cbor_free (self); |
1134 | SvREFCNT_dec (self->cb_object); |
|
|
1135 | |
1289 | |
1136 | PROTOTYPES: ENABLE |
1290 | PROTOTYPES: ENABLE |
1137 | |
1291 | |
1138 | void encode_cbor (SV *scalar) |
1292 | void encode_cbor (SV *scalar) |
1139 | PPCODE: |
1293 | PPCODE: |