… | |
… | |
6 | #include <string.h> |
6 | #include <string.h> |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
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11 | #include <inttypes.h> |
11 | |
12 | |
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13 | #define ECB_NO_THREADS 1 |
12 | #include "ecb.h" |
14 | #include "ecb.h" |
13 | |
15 | |
14 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
16 | // compatibility with perl <5.18 |
15 | # define snprintf _snprintf // C compilers have this in stdio.h |
17 | #ifndef HvNAMELEN_get |
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18 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
16 | #endif |
19 | #endif |
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20 | #ifndef HvNAMELEN |
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21 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
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22 | #endif |
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23 | #ifndef HvNAMEUTF8 |
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24 | # define HvNAMEUTF8(hv) 0 |
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25 | #endif |
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26 | #ifndef SvREFCNT_inc_NN |
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27 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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28 | #endif |
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29 | #ifndef SvREFCNT_dec_NN |
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30 | # define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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31 | #endif |
17 | |
32 | |
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33 | // known major and minor types |
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34 | enum cbor_type |
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35 | { |
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36 | MAJOR_SHIFT = 5, |
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37 | MINOR_MASK = 0x1f, |
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38 | |
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39 | MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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40 | MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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41 | MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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42 | MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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43 | MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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44 | MAJOR_MAP = 5 << MAJOR_SHIFT, |
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45 | MAJOR_TAG = 6 << MAJOR_SHIFT, |
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46 | MAJOR_MISC = 7 << MAJOR_SHIFT, |
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47 | |
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48 | // INT/STRING/ARRAY/MAP subtypes |
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49 | LENGTH_EXT1 = 24, |
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50 | LENGTH_EXT2 = 25, |
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51 | LENGTH_EXT4 = 26, |
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52 | LENGTH_EXT8 = 27, |
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53 | |
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54 | // SIMPLE types (effectively MISC subtypes) |
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55 | SIMPLE_FALSE = 20, |
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56 | SIMPLE_TRUE = 21, |
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57 | SIMPLE_NULL = 22, |
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58 | SIMPLE_UNDEF = 23, |
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59 | |
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60 | // MISC subtype (unused) |
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61 | MISC_EXT1 = 24, |
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62 | MISC_FLOAT16 = 25, |
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63 | MISC_FLOAT32 = 26, |
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64 | MISC_FLOAT64 = 27, |
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65 | |
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66 | // BYTES/TEXT/ARRAY/MAP |
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67 | MINOR_INDEF = 31, |
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68 | }; |
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69 | |
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70 | // known tags |
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71 | enum cbor_tag |
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72 | { |
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73 | // extensions |
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74 | CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
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75 | CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
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76 | CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
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77 | CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
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78 | CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
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79 | CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
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80 | CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
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81 | |
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82 | // rfc7049 |
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83 | CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
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84 | CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
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85 | CBOR_TAG_POS_BIGNUM = 2, // byte string |
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86 | CBOR_TAG_NEG_BIGNUM = 3, // byte string |
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87 | CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
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88 | CBOR_TAG_BIGFLOAT = 5, // array |
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89 | |
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90 | CBOR_TAG_CONV_B64U = 21, // base64url, any |
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91 | CBOR_TAG_CONV_B64 = 22, // base64, any |
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92 | CBOR_TAG_CONV_HEX = 23, // base16, any |
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93 | CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
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94 | |
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95 | CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
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96 | CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
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97 | CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
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98 | CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
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99 | CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
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100 | |
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101 | CBOR_TAG_MAGIC = 55799, // self-describe cbor |
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102 | }; |
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103 | |
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104 | // known forced types, also hardcoded in CBOR.pm |
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105 | enum |
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106 | { |
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107 | AS_CBOR = 0, |
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108 | AS_INT = 1, |
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109 | AS_BYTES = 2, |
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110 | AS_TEXT = 3, |
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111 | AS_FLOAT16 = 4, |
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112 | AS_FLOAT32 = 5, |
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113 | AS_FLOAT64 = 6, |
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114 | // possibly future enhancements: (generic) float, (generic) string |
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115 | }; |
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116 | |
18 | #define F_SHRINK 0x00000200UL |
117 | #define F_SHRINK 0x00000001UL |
19 | #define F_ALLOW_UNKNOWN 0x00002000UL |
118 | #define F_ALLOW_UNKNOWN 0x00000002UL |
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119 | #define F_ALLOW_SHARING 0x00000004UL |
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120 | #define F_ALLOW_CYCLES 0x00000008UL |
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121 | #define F_FORBID_OBJECTS 0x00000010UL |
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122 | #define F_PACK_STRINGS 0x00000020UL |
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123 | #define F_TEXT_KEYS 0x00000040UL |
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124 | #define F_TEXT_STRINGS 0x00000080UL |
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125 | #define F_VALIDATE_UTF8 0x00000100UL |
20 | |
126 | |
21 | #define INIT_SIZE 32 // initial scalar size to be allocated |
127 | #define INIT_SIZE 32 // initial scalar size to be allocated |
22 | |
128 | |
23 | #define SB do { |
129 | #define SB do { |
24 | #define SE } while (0) |
130 | #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 | |
131 | |
37 | #define IN_RANGE_INC(type,val,beg,end) \ |
132 | #define IN_RANGE_INC(type,val,beg,end) \ |
38 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
133 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
39 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
134 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
40 | |
135 | |
… | |
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46 | #else |
141 | #else |
47 | # define CBOR_SLOW 0 |
142 | # define CBOR_SLOW 0 |
48 | # define CBOR_STASH cbor_stash |
143 | # define CBOR_STASH cbor_stash |
49 | #endif |
144 | #endif |
50 | |
145 | |
51 | static HV *cbor_stash, *cbor_boolean_stash; // CBOR::XS:: |
146 | static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
52 | static SV *cbor_true, *cbor_false; |
147 | static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
53 | |
148 | |
54 | typedef struct { |
149 | typedef struct { |
55 | U32 flags; |
150 | U32 flags; |
56 | U32 max_depth; |
151 | U32 max_depth; |
57 | STRLEN max_size; |
152 | STRLEN max_size; |
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153 | SV *filter; |
58 | |
154 | |
59 | SV *cb_object; |
155 | // for the incremental parser |
60 | HV *cb_sk_object; |
156 | STRLEN incr_pos; // the current offset into the text |
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157 | STRLEN incr_need; // minimum bytes needed to decode |
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158 | AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
61 | } CBOR; |
159 | } CBOR; |
62 | |
160 | |
63 | INLINE void |
161 | ecb_inline void |
64 | cbor_init (CBOR *cbor) |
162 | cbor_init (CBOR *cbor) |
65 | { |
163 | { |
66 | Zero (cbor, 1, CBOR); |
164 | Zero (cbor, 1, CBOR); |
67 | cbor->max_depth = 512; |
165 | cbor->max_depth = 512; |
68 | } |
166 | } |
69 | |
167 | |
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168 | ecb_inline void |
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169 | cbor_free (CBOR *cbor) |
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170 | { |
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171 | SvREFCNT_dec (cbor->filter); |
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172 | SvREFCNT_dec (cbor->incr_count); |
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173 | } |
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174 | |
70 | ///////////////////////////////////////////////////////////////////////////// |
175 | ///////////////////////////////////////////////////////////////////////////// |
71 | // utility functions |
176 | // utility functions |
72 | |
177 | |
73 | INLINE SV * |
178 | ecb_inline SV * |
74 | get_bool (const char *name) |
179 | get_bool (const char *name) |
75 | { |
180 | { |
76 | SV *sv = get_sv (name, 1); |
181 | SV *sv = get_sv (name, 1); |
77 | |
182 | |
78 | SvREADONLY_on (sv); |
183 | SvREADONLY_on (sv); |
79 | SvREADONLY_on (SvRV (sv)); |
184 | SvREADONLY_on (SvRV (sv)); |
80 | |
185 | |
81 | return sv; |
186 | return sv; |
82 | } |
187 | } |
83 | |
188 | |
84 | INLINE void |
189 | ecb_inline void |
85 | shrink (SV *sv) |
190 | shrink (SV *sv) |
86 | { |
191 | { |
87 | sv_utf8_downgrade (sv, 1); |
192 | sv_utf8_downgrade (sv, 1); |
88 | |
193 | |
89 | if (SvLEN (sv) > SvCUR (sv) + 1) |
194 | if (SvLEN (sv) > SvCUR (sv) + 1) |
… | |
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94 | SvPV_renew (sv, SvCUR (sv) + 1); |
199 | SvPV_renew (sv, SvCUR (sv) + 1); |
95 | #endif |
200 | #endif |
96 | } |
201 | } |
97 | } |
202 | } |
98 | |
203 | |
99 | ///////////////////////////////////////////////////////////////////////////// |
204 | // minimum length of a string to be registered for stringref |
100 | // fp hell |
205 | ecb_inline int |
101 | |
206 | minimum_string_length (UV idx) |
102 | //TODO |
207 | { |
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208 | return idx <= 23 ? 3 |
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209 | : idx <= 0xffU ? 4 |
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210 | : idx <= 0xffffU ? 5 |
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211 | : idx <= 0xffffffffU ? 7 |
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212 | : 11; |
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213 | } |
103 | |
214 | |
104 | ///////////////////////////////////////////////////////////////////////////// |
215 | ///////////////////////////////////////////////////////////////////////////// |
105 | // encoder |
216 | // encoder |
106 | |
217 | |
107 | // structure used for encoding CBOR |
218 | // structure used for encoding CBOR |
… | |
… | |
110 | char *cur; // SvPVX (sv) + current output position |
221 | char *cur; // SvPVX (sv) + current output position |
111 | char *end; // SvEND (sv) |
222 | char *end; // SvEND (sv) |
112 | SV *sv; // result scalar |
223 | SV *sv; // result scalar |
113 | CBOR cbor; |
224 | CBOR cbor; |
114 | U32 depth; // recursion level |
225 | U32 depth; // recursion level |
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226 | HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
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227 | UV stringref_idx; |
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228 | HV *shareable; // ptr => index, or 0 |
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229 | UV shareable_idx; |
115 | } enc_t; |
230 | } enc_t; |
116 | |
231 | |
117 | INLINE void |
232 | ecb_inline void |
118 | need (enc_t *enc, STRLEN len) |
233 | need (enc_t *enc, STRLEN len) |
119 | { |
234 | { |
120 | if (expect_false (enc->cur + len >= enc->end)) |
235 | if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
121 | { |
236 | { |
122 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
237 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
123 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
238 | SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
124 | enc->cur = SvPVX (enc->sv) + cur; |
239 | enc->cur = SvPVX (enc->sv) + cur; |
125 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
240 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
126 | } |
241 | } |
127 | } |
242 | } |
128 | |
243 | |
129 | INLINE void |
244 | ecb_inline void |
130 | encode_ch (enc_t *enc, char ch) |
245 | encode_ch (enc_t *enc, char ch) |
131 | { |
246 | { |
132 | need (enc, 1); |
247 | need (enc, 1); |
133 | *enc->cur++ = ch; |
248 | *enc->cur++ = ch; |
134 | } |
249 | } |
135 | |
250 | |
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251 | // used for tags, intregers, element counts and so on |
136 | static void |
252 | static void |
137 | encode_uint (enc_t *enc, int major, UV len) |
253 | encode_uint (enc_t *enc, int major, UV len) |
138 | { |
254 | { |
139 | need (enc, 9); |
255 | need (enc, 9); |
140 | |
256 | |
141 | if (len < 24) |
257 | if (ecb_expect_true (len < LENGTH_EXT1)) |
142 | *enc->cur++ = major | len; |
258 | *enc->cur++ = major | len; |
143 | else if (len < 0x100) |
259 | else if (ecb_expect_true (len <= 0xffU)) |
144 | { |
260 | { |
145 | *enc->cur++ = major | 24; |
261 | *enc->cur++ = major | LENGTH_EXT1; |
146 | *enc->cur++ = len; |
262 | *enc->cur++ = len; |
147 | } |
263 | } |
148 | else if (len < 0x10000) |
264 | else if (len <= 0xffffU) |
149 | { |
265 | { |
150 | *enc->cur++ = major | 25; |
266 | *enc->cur++ = major | LENGTH_EXT2; |
151 | *enc->cur++ = len >> 8; |
267 | *enc->cur++ = len >> 8; |
152 | *enc->cur++ = len; |
268 | *enc->cur++ = len; |
153 | } |
269 | } |
154 | else if (len < 0x100000000) |
270 | else if (len <= 0xffffffffU) |
155 | { |
271 | { |
156 | *enc->cur++ = major | 26; |
272 | *enc->cur++ = major | LENGTH_EXT4; |
157 | *enc->cur++ = len >> 24; |
273 | *enc->cur++ = len >> 24; |
158 | *enc->cur++ = len >> 16; |
274 | *enc->cur++ = len >> 16; |
159 | *enc->cur++ = len >> 8; |
275 | *enc->cur++ = len >> 8; |
160 | *enc->cur++ = len; |
276 | *enc->cur++ = len; |
161 | } |
277 | } |
162 | else if (len) |
278 | else |
163 | { |
279 | { |
164 | *enc->cur++ = major | 27; |
280 | *enc->cur++ = major | LENGTH_EXT8; |
165 | *enc->cur++ = len >> 56; |
281 | *enc->cur++ = len >> 56; |
166 | *enc->cur++ = len >> 48; |
282 | *enc->cur++ = len >> 48; |
167 | *enc->cur++ = len >> 40; |
283 | *enc->cur++ = len >> 40; |
168 | *enc->cur++ = len >> 32; |
284 | *enc->cur++ = len >> 32; |
169 | *enc->cur++ = len >> 24; |
285 | *enc->cur++ = len >> 24; |
… | |
… | |
171 | *enc->cur++ = len >> 8; |
287 | *enc->cur++ = len >> 8; |
172 | *enc->cur++ = len; |
288 | *enc->cur++ = len; |
173 | } |
289 | } |
174 | } |
290 | } |
175 | |
291 | |
176 | static void |
292 | // encodes a perl value into a CBOR integer |
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293 | ecb_inline void |
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294 | encode_int (enc_t *enc, SV *sv) |
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295 | { |
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296 | if (SvIsUV (sv)) |
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297 | encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
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298 | else if (SvIVX (sv) >= 0) |
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299 | encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
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300 | else |
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301 | encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
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302 | } |
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303 | |
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304 | ecb_inline void |
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305 | encode_tag (enc_t *enc, UV tag) |
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306 | { |
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307 | encode_uint (enc, MAJOR_TAG, tag); |
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308 | } |
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309 | |
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310 | // exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
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311 | ecb_noinline static void |
177 | encode_str (enc_t *enc, int utf8, char *str, STRLEN len) |
312 | encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
178 | { |
313 | { |
179 | encode_uint (enc, utf8 ? 0x60 : 0x40, len); |
314 | STRLEN ulen = len; |
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315 | U8 *p, *pend = (U8 *)str + len; |
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316 | |
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317 | for (p = (U8 *)str; p < pend; ++p) |
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318 | ulen += *p >> 7; // count set high bits |
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319 | |
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320 | encode_uint (enc, MAJOR_TEXT, ulen); |
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321 | |
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322 | need (enc, ulen); |
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323 | for (p = (U8 *)str; p < pend; ++p) |
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324 | if (*p < 0x80) |
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325 | *enc->cur++ = *p; |
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326 | else |
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327 | { |
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328 | *enc->cur++ = 0xc0 + (*p >> 6); |
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329 | *enc->cur++ = 0x80 + (*p & 63); |
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330 | } |
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331 | } |
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332 | |
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333 | ecb_inline void |
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334 | encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
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335 | { |
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336 | if (ecb_expect_false (upgrade_utf8)) |
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337 | if (!utf8) |
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338 | { |
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339 | encode_str_utf8 (enc, utf8, str, len); |
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340 | return; |
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341 | } |
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342 | |
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343 | encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
180 | need (enc, len); |
344 | need (enc, len); |
181 | memcpy (enc->cur, str, len); |
345 | memcpy (enc->cur, str, len); |
182 | enc->cur += len; |
346 | enc->cur += len; |
183 | } |
347 | } |
184 | |
348 | |
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349 | ecb_inline void |
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350 | encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
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351 | { |
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352 | if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
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353 | { |
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354 | SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
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355 | |
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356 | if (SvOK (*svp)) |
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357 | { |
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358 | // already registered, use stringref |
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359 | encode_tag (enc, CBOR_TAG_STRINGREF); |
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360 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
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361 | return; |
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362 | } |
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363 | else if (len >= minimum_string_length (enc->stringref_idx)) |
|
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364 | { |
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365 | // register only |
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366 | sv_setuv (*svp, enc->stringref_idx); |
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367 | ++enc->stringref_idx; |
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368 | } |
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369 | } |
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370 | |
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371 | encode_str (enc, upgrade_utf8, utf8, str, len); |
|
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372 | } |
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373 | |
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374 | ecb_inline void |
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375 | encode_float16 (enc_t *enc, NV nv) |
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376 | { |
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377 | need (enc, 1+2); |
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378 | |
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379 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT16; |
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380 | |
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381 | uint16_t fp = ecb_float_to_binary16 (nv); |
|
|
382 | |
|
|
383 | if (!ecb_big_endian ()) |
|
|
384 | fp = ecb_bswap16 (fp); |
|
|
385 | |
|
|
386 | memcpy (enc->cur, &fp, 2); |
|
|
387 | enc->cur += 2; |
|
|
388 | } |
|
|
389 | |
|
|
390 | ecb_inline void |
|
|
391 | encode_float32 (enc_t *enc, NV nv) |
|
|
392 | { |
|
|
393 | need (enc, 1+4); |
|
|
394 | |
|
|
395 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
|
|
396 | |
|
|
397 | uint32_t fp = ecb_float_to_binary32 (nv); |
|
|
398 | |
|
|
399 | if (!ecb_big_endian ()) |
|
|
400 | fp = ecb_bswap32 (fp); |
|
|
401 | |
|
|
402 | memcpy (enc->cur, &fp, 4); |
|
|
403 | enc->cur += 4; |
|
|
404 | } |
|
|
405 | |
|
|
406 | ecb_inline void |
|
|
407 | encode_float64 (enc_t *enc, NV nv) |
|
|
408 | { |
|
|
409 | need (enc, 1+8); |
|
|
410 | |
|
|
411 | *enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
|
|
412 | |
|
|
413 | uint64_t fp = ecb_double_to_binary64 (nv); |
|
|
414 | |
|
|
415 | if (!ecb_big_endian ()) |
|
|
416 | fp = ecb_bswap64 (fp); |
|
|
417 | |
|
|
418 | memcpy (enc->cur, &fp, 8); |
|
|
419 | enc->cur += 8; |
|
|
420 | } |
|
|
421 | |
|
|
422 | ecb_inline void |
|
|
423 | encode_forced (enc_t *enc, UV type, SV *sv) |
|
|
424 | { |
|
|
425 | switch (type) |
|
|
426 | { |
|
|
427 | case AS_CBOR: |
|
|
428 | { |
|
|
429 | STRLEN len; |
|
|
430 | char *str = SvPVbyte (sv, len); |
|
|
431 | |
|
|
432 | need (enc, len); |
|
|
433 | memcpy (enc->cur, str, len); |
|
|
434 | enc->cur += len; |
|
|
435 | } |
|
|
436 | break; |
|
|
437 | |
|
|
438 | case AS_BYTES: |
|
|
439 | { |
|
|
440 | STRLEN len; |
|
|
441 | char *str = SvPVbyte (sv, len); |
|
|
442 | encode_strref (enc, 0, 0, str, len); |
|
|
443 | } |
|
|
444 | break; |
|
|
445 | |
|
|
446 | case AS_TEXT: |
|
|
447 | { |
|
|
448 | STRLEN len; |
|
|
449 | char *str = SvPVutf8 (sv, len); |
|
|
450 | encode_strref (enc, 1, 1, str, len); |
|
|
451 | } |
|
|
452 | break; |
|
|
453 | |
|
|
454 | case AS_INT: encode_int (enc, sv); break; |
|
|
455 | case AS_FLOAT16: encode_float16 (enc, SvNV (sv)); break; |
|
|
456 | case AS_FLOAT32: encode_float32 (enc, SvNV (sv)); break; |
|
|
457 | case AS_FLOAT64: encode_float64 (enc, SvNV (sv)); break; |
|
|
458 | |
|
|
459 | default: |
|
|
460 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
|
461 | } |
|
|
462 | } |
|
|
463 | |
185 | static void encode_sv (enc_t *enc, SV *sv); |
464 | static void encode_sv (enc_t *enc, SV *sv); |
186 | |
465 | |
187 | static void |
466 | static void |
188 | encode_av (enc_t *enc, AV *av) |
467 | encode_av (enc_t *enc, AV *av) |
189 | { |
468 | { |
… | |
… | |
192 | if (enc->depth >= enc->cbor.max_depth) |
471 | if (enc->depth >= enc->cbor.max_depth) |
193 | croak (ERR_NESTING_EXCEEDED); |
472 | croak (ERR_NESTING_EXCEEDED); |
194 | |
473 | |
195 | ++enc->depth; |
474 | ++enc->depth; |
196 | |
475 | |
197 | encode_uint (enc, 0x80, len + 1); |
476 | encode_uint (enc, MAJOR_ARRAY, len + 1); |
198 | |
477 | |
|
|
478 | if (ecb_expect_false (SvMAGICAL (av))) |
199 | for (i = 0; i <= len; ++i) |
479 | for (i = 0; i <= len; ++i) |
200 | { |
480 | { |
201 | SV **svp = av_fetch (av, i, 0); |
481 | SV **svp = av_fetch (av, i, 0); |
202 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
482 | encode_sv (enc, svp ? *svp : &PL_sv_undef); |
203 | } |
483 | } |
|
|
484 | else |
|
|
485 | for (i = 0; i <= len; ++i) |
|
|
486 | { |
|
|
487 | SV *sv = AvARRAY (av)[i]; |
|
|
488 | encode_sv (enc, sv ? sv : &PL_sv_undef); |
|
|
489 | } |
204 | |
490 | |
205 | --enc->depth; |
491 | --enc->depth; |
206 | } |
492 | } |
207 | |
493 | |
208 | static void |
494 | static void |
… | |
… | |
216 | ++enc->depth; |
502 | ++enc->depth; |
217 | |
503 | |
218 | int pairs = hv_iterinit (hv); |
504 | int pairs = hv_iterinit (hv); |
219 | int mg = SvMAGICAL (hv); |
505 | int mg = SvMAGICAL (hv); |
220 | |
506 | |
221 | if (mg) |
507 | if (ecb_expect_false (mg)) |
222 | encode_ch (enc, 0xa0 | 31); |
508 | encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
223 | else |
509 | else |
224 | encode_uint (enc, 0xa0, pairs); |
510 | encode_uint (enc, MAJOR_MAP, pairs); |
225 | |
511 | |
226 | while ((he = hv_iternext (hv))) |
512 | while ((he = hv_iternext (hv))) |
227 | { |
513 | { |
228 | if (HeKLEN (he) == HEf_SVKEY) |
514 | if (HeKLEN (he) == HEf_SVKEY) |
229 | encode_sv (enc, HeSVKEY (he)); |
515 | encode_sv (enc, HeSVKEY (he)); |
230 | else |
516 | else |
231 | encode_str (enc, HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
517 | encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
232 | |
518 | |
233 | encode_sv (enc, expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
519 | encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
234 | } |
520 | } |
235 | |
521 | |
236 | if (mg) |
522 | if (ecb_expect_false (mg)) |
237 | encode_ch (enc, 0xe0 | 31); |
523 | encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
238 | |
524 | |
239 | --enc->depth; |
525 | --enc->depth; |
240 | } |
526 | } |
241 | |
527 | |
242 | // encode objects, arrays and special \0=false and \1=true values. |
528 | // encode objects, arrays and special \0=false and \1=true values. |
243 | static void |
529 | static void |
244 | encode_rv (enc_t *enc, SV *sv) |
530 | encode_rv (enc_t *enc, SV *sv) |
245 | { |
531 | { |
246 | svtype svt; |
|
|
247 | |
|
|
248 | SvGETMAGIC (sv); |
532 | SvGETMAGIC (sv); |
|
|
533 | |
249 | svt = SvTYPE (sv); |
534 | svtype svt = SvTYPE (sv); |
250 | |
535 | |
251 | if (expect_false (SvOBJECT (sv))) |
536 | if (ecb_expect_false (SvOBJECT (sv))) |
252 | { |
537 | { |
253 | HV *stash = !CBOR_SLOW || cbor_boolean_stash |
538 | HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
254 | ? cbor_boolean_stash |
539 | ? types_boolean_stash |
|
|
540 | : gv_stashpv ("Types::Serialiser::Boolean", 1); |
|
|
541 | HV *error_stash = !CBOR_SLOW || types_error_stash |
|
|
542 | ? types_error_stash |
|
|
543 | : gv_stashpv ("Types::Serialiser::Error", 1); |
|
|
544 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
|
|
545 | ? cbor_tagged_stash |
255 | : gv_stashpv ("CBOR::XS::Boolean", 1); |
546 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
256 | |
547 | |
257 | if (SvSTASH (sv) == stash) |
548 | HV *stash = SvSTASH (sv); |
258 | encode_ch (enc, SvIV (sv) ? 0xe0 | 21 : 0xe0 | 20); |
549 | |
|
|
550 | if (stash == boolean_stash) |
|
|
551 | { |
|
|
552 | encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
|
|
553 | return; |
|
|
554 | } |
|
|
555 | else if (stash == error_stash) |
|
|
556 | { |
|
|
557 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
|
|
558 | return; |
|
|
559 | } |
|
|
560 | else if (stash == tagged_stash) |
|
|
561 | { |
|
|
562 | if (svt != SVt_PVAV) |
|
|
563 | croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
|
|
564 | |
|
|
565 | switch (av_len ((AV *)sv)) |
|
|
566 | { |
|
|
567 | case 2-1: |
|
|
568 | // actually a tagged value |
|
|
569 | encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
|
|
570 | encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
|
|
571 | break; |
|
|
572 | |
|
|
573 | case 3-1: |
|
|
574 | // a forced type [value, type, undef] |
|
|
575 | encode_forced (enc, SvUV (*av_fetch ((AV *)sv, 1, 1)), *av_fetch ((AV *)sv, 0, 1)); |
|
|
576 | break; |
|
|
577 | |
|
|
578 | default: |
|
|
579 | croak ("encountered malformed CBOR::XS::Tagged object"); |
|
|
580 | } |
|
|
581 | |
|
|
582 | return; |
|
|
583 | } |
|
|
584 | } |
|
|
585 | |
|
|
586 | if (ecb_expect_false (SvREFCNT (sv) > 1) |
|
|
587 | && ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
|
|
588 | { |
|
|
589 | if (ecb_expect_false (!enc->shareable)) |
|
|
590 | enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
591 | |
|
|
592 | SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
|
|
593 | |
|
|
594 | if (SvOK (*svp)) |
|
|
595 | { |
|
|
596 | encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
|
|
597 | encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
|
|
598 | return; |
|
|
599 | } |
259 | else |
600 | else |
260 | { |
601 | { |
261 | #if 0 //TODO |
602 | sv_setuv (*svp, enc->shareable_idx); |
262 | if (enc->cbor.flags & F_CONV_BLESSED) |
603 | ++enc->shareable_idx; |
|
|
604 | encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
|
|
605 | } |
|
|
606 | } |
|
|
607 | |
|
|
608 | if (ecb_expect_false (SvOBJECT (sv))) |
|
|
609 | { |
|
|
610 | HV *stash = SvSTASH (sv); |
|
|
611 | GV *method; |
|
|
612 | |
|
|
613 | if (enc->cbor.flags & F_FORBID_OBJECTS) |
|
|
614 | croak ("encountered object '%s', but forbid_objects is enabled", |
|
|
615 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
616 | else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
263 | { |
617 | { |
|
|
618 | dSP; |
|
|
619 | |
|
|
620 | ENTER; SAVETMPS; |
|
|
621 | PUSHMARK (SP); |
264 | // we re-bless the reference to get overload and other niceties right |
622 | // 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))); |
623 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
273 | |
624 | |
274 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
|
275 | PUTBACK; |
625 | PUTBACK; |
|
|
626 | // G_SCALAR ensures that return value is 1 |
276 | call_sv ((SV *)GvCV (to_cbor), G_SCALAR); |
627 | call_sv ((SV *)GvCV (method), G_SCALAR); |
277 | SPAGAIN; |
628 | SPAGAIN; |
278 | |
629 | |
279 | // catch this surprisingly common error |
630 | // catch this surprisingly common error |
280 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
631 | 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))); |
632 | croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
282 | |
633 | |
283 | sv = POPs; |
|
|
284 | PUTBACK; |
|
|
285 | |
|
|
286 | encode_sv (enc, sv); |
634 | encode_sv (enc, POPs); |
287 | |
635 | |
|
|
636 | PUTBACK; |
|
|
637 | |
288 | FREETMPS; LEAVE; |
638 | FREETMPS; LEAVE; |
289 | } |
639 | } |
290 | else if (enc->cbor.flags & F_ALLOW_BLESSED) |
640 | else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
291 | encode_str (enc, "null", 4, 0); |
641 | { |
292 | else |
642 | dSP; |
293 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_CBOR method available on it", |
643 | |
294 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
644 | ENTER; SAVETMPS; |
|
|
645 | PUSHMARK (SP); |
|
|
646 | EXTEND (SP, 2); |
|
|
647 | // we re-bless the reference to get overload and other niceties right |
|
|
648 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
|
|
649 | PUSHs (sv_cbor); |
|
|
650 | |
|
|
651 | PUTBACK; |
|
|
652 | int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
|
|
653 | SPAGAIN; |
|
|
654 | |
|
|
655 | // catch this surprisingly common error |
|
|
656 | if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
657 | croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
|
|
658 | |
|
|
659 | encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
|
|
660 | encode_uint (enc, MAJOR_ARRAY, count + 1); |
|
|
661 | encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
|
|
662 | |
|
|
663 | { |
|
|
664 | int i; |
|
|
665 | |
|
|
666 | for (i = 0; i < count; ++i) |
|
|
667 | encode_sv (enc, SP[i + 1 - count]); |
|
|
668 | |
|
|
669 | SP -= count; |
295 | } |
670 | } |
296 | else if (enc->cbor.flags & F_ALLOW_BLESSED) |
671 | |
297 | encode_str (enc, "null", 4, 0); |
672 | PUTBACK; |
|
|
673 | |
|
|
674 | FREETMPS; LEAVE; |
|
|
675 | } |
298 | else |
676 | else |
299 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
677 | croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
300 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
678 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
301 | #endif |
|
|
302 | } |
|
|
303 | } |
679 | } |
304 | else if (svt == SVt_PVHV) |
680 | else if (svt == SVt_PVHV) |
305 | encode_hv (enc, (HV *)sv); |
681 | encode_hv (enc, (HV *)sv); |
306 | else if (svt == SVt_PVAV) |
682 | else if (svt == SVt_PVAV) |
307 | encode_av (enc, (AV *)sv); |
683 | 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 |
684 | else |
326 | croak ("encountered %s, but CBOR can only represent references to arrays or hashes", |
685 | { |
327 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
686 | encode_tag (enc, CBOR_TAG_INDIRECTION); |
|
|
687 | encode_sv (enc, sv); |
|
|
688 | } |
328 | } |
689 | } |
329 | |
690 | |
330 | static void |
691 | static void |
331 | encode_nv (enc_t *enc, SV *sv) |
692 | encode_nv (enc_t *enc, SV *sv) |
332 | { |
693 | { |
333 | double nv = SvNVX (sv); |
694 | double nv = SvNVX (sv); |
334 | |
695 | |
335 | need (enc, 9); |
696 | need (enc, 9); |
336 | |
697 | |
337 | if (expect_false (nv == (U32)nv)) |
698 | if (ecb_expect_false (nv == (NV)(U32)nv)) |
338 | encode_uint (enc, 0x00, (U32)nv); |
699 | encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
339 | //TODO: maybe I32? |
700 | //TODO: maybe I32? |
340 | else if (expect_false (nv == (float)nv)) |
701 | else if (ecb_expect_false (nv == (float)nv)) |
341 | { |
702 | encode_float32 (enc, nv); |
342 | uint32_t fp = ecb_float_to_binary32 (nv); |
|
|
343 | |
|
|
344 | *enc->cur++ = 0xe0 | 26; |
|
|
345 | |
|
|
346 | if (!ecb_big_endian ()) |
|
|
347 | fp = ecb_bswap32 (fp); |
|
|
348 | |
|
|
349 | memcpy (enc->cur, &fp, 4); |
|
|
350 | enc->cur += 4; |
|
|
351 | } |
|
|
352 | else |
703 | else |
353 | { |
704 | encode_float64 (enc, nv); |
354 | uint64_t fp = ecb_double_to_binary64 (nv); |
|
|
355 | |
|
|
356 | *enc->cur++ = 0xe0 | 27; |
|
|
357 | |
|
|
358 | if (!ecb_big_endian ()) |
|
|
359 | fp = ecb_bswap64 (fp); |
|
|
360 | |
|
|
361 | memcpy (enc->cur, &fp, 8); |
|
|
362 | enc->cur += 8; |
|
|
363 | } |
|
|
364 | } |
705 | } |
365 | |
706 | |
366 | static void |
707 | static void |
367 | encode_sv (enc_t *enc, SV *sv) |
708 | encode_sv (enc_t *enc, SV *sv) |
368 | { |
709 | { |
… | |
… | |
370 | |
711 | |
371 | if (SvPOKp (sv)) |
712 | if (SvPOKp (sv)) |
372 | { |
713 | { |
373 | STRLEN len; |
714 | STRLEN len; |
374 | char *str = SvPV (sv, len); |
715 | char *str = SvPV (sv, len); |
375 | encode_str (enc, SvUTF8 (sv), str, len); |
716 | encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
376 | } |
717 | } |
377 | else if (SvNOKp (sv)) |
718 | else if (SvNOKp (sv)) |
378 | encode_nv (enc, sv); |
719 | encode_nv (enc, sv); |
379 | else if (SvIOKp (sv)) |
720 | else if (SvIOKp (sv)) |
380 | { |
721 | encode_int (enc, sv); |
381 | if (SvIsUV (sv)) |
|
|
382 | encode_uint (enc, 0x00, SvUVX (sv)); |
|
|
383 | else if (SvIVX (sv) >= 0) |
|
|
384 | encode_uint (enc, 0x00, SvIVX (sv)); |
|
|
385 | else |
|
|
386 | encode_uint (enc, 0x20, -(SvIVX (sv) + 1)); |
|
|
387 | } |
|
|
388 | else if (SvROK (sv)) |
722 | else if (SvROK (sv)) |
389 | encode_rv (enc, SvRV (sv)); |
723 | encode_rv (enc, SvRV (sv)); |
390 | else if (!SvOK (sv)) |
724 | else if (!SvOK (sv)) |
391 | encode_ch (enc, 0xe0 | 22); |
725 | encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
392 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
726 | else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
393 | encode_ch (enc, 0xe0 | 23); |
727 | encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
394 | else |
728 | else |
395 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
729 | croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
396 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
730 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
397 | } |
731 | } |
398 | |
732 | |
399 | static SV * |
733 | static SV * |
400 | encode_cbor (SV *scalar, CBOR *cbor) |
734 | encode_cbor (SV *scalar, CBOR *cbor) |
401 | { |
735 | { |
402 | enc_t enc; |
736 | enc_t enc = { 0 }; |
403 | |
737 | |
404 | enc.cbor = *cbor; |
738 | enc.cbor = *cbor; |
405 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
739 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
406 | enc.cur = SvPVX (enc.sv); |
740 | enc.cur = SvPVX (enc.sv); |
407 | enc.end = SvEND (enc.sv); |
741 | enc.end = SvEND (enc.sv); |
408 | enc.depth = 0; |
|
|
409 | |
742 | |
410 | SvPOK_only (enc.sv); |
743 | SvPOK_only (enc.sv); |
|
|
744 | |
|
|
745 | if (cbor->flags & F_PACK_STRINGS) |
|
|
746 | { |
|
|
747 | encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
|
|
748 | enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
749 | enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
|
|
750 | } |
|
|
751 | |
411 | encode_sv (&enc, scalar); |
752 | encode_sv (&enc, scalar); |
412 | |
753 | |
413 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
754 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
414 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
755 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
415 | |
756 | |
… | |
… | |
429 | U8 *end; // end of input string |
770 | U8 *end; // end of input string |
430 | const char *err; // parse error, if != 0 |
771 | const char *err; // parse error, if != 0 |
431 | CBOR cbor; |
772 | CBOR cbor; |
432 | U32 depth; // recursion depth |
773 | U32 depth; // recursion depth |
433 | U32 maxdepth; // recursion depth limit |
774 | U32 maxdepth; // recursion depth limit |
|
|
775 | AV *shareable; |
|
|
776 | AV *stringref; |
|
|
777 | SV *decode_tagged; |
|
|
778 | SV *err_sv; // optional sv for error, needs to be freed |
434 | } dec_t; |
779 | } dec_t; |
435 | |
780 | |
436 | #define ERR(reason) SB if (!dec->err) dec->err = reason; goto fail; SE |
781 | // set dec->err to ERRSV |
|
|
782 | ecb_cold static void |
|
|
783 | err_errsv (dec_t *dec) |
|
|
784 | { |
|
|
785 | if (!dec->err) |
|
|
786 | { |
|
|
787 | dec->err_sv = newSVsv (ERRSV); |
437 | |
788 | |
438 | #define WANT(len) if (expect_false (dec->cur + len > dec->end)) ERR ("unexpected end of CBOR data"); |
789 | // chop off the trailing \n |
|
|
790 | SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
|
|
791 | *SvEND (dec->err_sv) = 0; |
439 | |
792 | |
|
|
793 | dec->err = SvPVutf8_nolen (dec->err_sv); |
|
|
794 | } |
|
|
795 | } |
|
|
796 | |
|
|
797 | // the following functions are used to reduce code size and help the compiler to optimise |
|
|
798 | ecb_cold static void |
|
|
799 | err_set (dec_t *dec, const char *reason) |
|
|
800 | { |
|
|
801 | if (!dec->err) |
|
|
802 | dec->err = reason; |
|
|
803 | } |
|
|
804 | |
|
|
805 | ecb_cold static void |
|
|
806 | err_unexpected_end (dec_t *dec) |
|
|
807 | { |
|
|
808 | err_set (dec, "unexpected end of CBOR data"); |
|
|
809 | } |
|
|
810 | |
|
|
811 | #define ERR_DO(do) SB do; goto fail; SE |
|
|
812 | #define ERR(reason) ERR_DO (err_set (dec, reason)) |
|
|
813 | #define ERR_ERRSV ERR_DO (err_errsv (dec)) |
|
|
814 | |
|
|
815 | #define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec)) |
|
|
816 | |
440 | #define DEC_INC_DEPTH if (++dec->depth > dec->cbor.max_depth) ERR (ERR_NESTING_EXCEEDED) |
817 | #define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
441 | #define DEC_DEC_DEPTH --dec->depth |
818 | #define DEC_DEC_DEPTH --dec->depth |
442 | |
819 | |
443 | static UV |
820 | static UV |
444 | decode_uint (dec_t *dec) |
821 | decode_uint (dec_t *dec) |
445 | { |
822 | { |
446 | switch (*dec->cur & 31) |
823 | U8 m = *dec->cur & MINOR_MASK; |
447 | { |
824 | ++dec->cur; |
448 | case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: |
|
|
449 | case 8: case 9: case 10: case 11: case 12: case 13: case 14: case 15: |
|
|
450 | case 16: case 17: case 18: case 19: case 20: case 21: case 22: case 23: |
|
|
451 | return *dec->cur++ & 31; |
|
|
452 | |
825 | |
453 | case 24: |
826 | if (ecb_expect_true (m < LENGTH_EXT1)) |
|
|
827 | return m; |
|
|
828 | else if (ecb_expect_true (m == LENGTH_EXT1)) |
|
|
829 | { |
454 | WANT (2); |
830 | WANT (1); |
455 | dec->cur += 2; |
831 | dec->cur += 1; |
456 | return dec->cur[-1]; |
832 | return dec->cur[-1]; |
457 | |
833 | } |
458 | case 25: |
834 | else if (ecb_expect_true (m == LENGTH_EXT2)) |
|
|
835 | { |
459 | WANT (3); |
836 | WANT (2); |
460 | dec->cur += 3; |
837 | dec->cur += 2; |
461 | return (((UV)dec->cur[-2]) << 8) |
838 | return (((UV)dec->cur[-2]) << 8) |
462 | | ((UV)dec->cur[-1]); |
839 | | ((UV)dec->cur[-1]); |
463 | |
840 | } |
464 | case 26: |
841 | else if (ecb_expect_true (m == LENGTH_EXT4)) |
|
|
842 | { |
465 | WANT (5); |
843 | WANT (4); |
466 | dec->cur += 5; |
844 | dec->cur += 4; |
467 | return (((UV)dec->cur[-4]) << 24) |
845 | return (((UV)dec->cur[-4]) << 24) |
468 | | (((UV)dec->cur[-3]) << 16) |
846 | | (((UV)dec->cur[-3]) << 16) |
469 | | (((UV)dec->cur[-2]) << 8) |
847 | | (((UV)dec->cur[-2]) << 8) |
470 | | ((UV)dec->cur[-1]); |
848 | | ((UV)dec->cur[-1]); |
471 | |
849 | } |
472 | case 27: |
850 | else if (ecb_expect_true (m == LENGTH_EXT8)) |
|
|
851 | { |
473 | WANT (9); |
852 | WANT (8); |
474 | dec->cur += 9; |
853 | dec->cur += 8; |
|
|
854 | |
|
|
855 | return |
|
|
856 | #if UVSIZE < 8 |
|
|
857 | 0 |
|
|
858 | #else |
475 | return (((UV)dec->cur[-8]) << 56) |
859 | (((UV)dec->cur[-8]) << 56) |
476 | | (((UV)dec->cur[-7]) << 48) |
860 | | (((UV)dec->cur[-7]) << 48) |
477 | | (((UV)dec->cur[-6]) << 40) |
861 | | (((UV)dec->cur[-6]) << 40) |
478 | | (((UV)dec->cur[-5]) << 32) |
862 | | (((UV)dec->cur[-5]) << 32) |
|
|
863 | #endif |
479 | | (((UV)dec->cur[-4]) << 24) |
864 | | (((UV)dec->cur[-4]) << 24) |
480 | | (((UV)dec->cur[-3]) << 16) |
865 | | (((UV)dec->cur[-3]) << 16) |
481 | | (((UV)dec->cur[-2]) << 8) |
866 | | (((UV)dec->cur[-2]) << 8) |
482 | | ((UV)dec->cur[-1]); |
867 | | ((UV)dec->cur[-1]); |
483 | |
868 | } |
484 | default: |
869 | else |
485 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
870 | ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
486 | } |
|
|
487 | |
871 | |
488 | fail: |
872 | fail: |
489 | return 0; |
873 | return 0; |
490 | } |
874 | } |
491 | |
875 | |
… | |
… | |
496 | { |
880 | { |
497 | AV *av = newAV (); |
881 | AV *av = newAV (); |
498 | |
882 | |
499 | DEC_INC_DEPTH; |
883 | DEC_INC_DEPTH; |
500 | |
884 | |
501 | if ((*dec->cur & 31) == 31) |
885 | if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
502 | { |
886 | { |
503 | ++dec->cur; |
887 | ++dec->cur; |
504 | |
888 | |
505 | for (;;) |
889 | for (;;) |
506 | { |
890 | { |
507 | WANT (1); |
891 | WANT (1); |
508 | |
892 | |
509 | if (*dec->cur == (0xe0 | 31)) |
893 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
510 | { |
894 | { |
511 | ++dec->cur; |
895 | ++dec->cur; |
512 | break; |
896 | break; |
513 | } |
897 | } |
514 | |
898 | |
515 | av_push (av, decode_sv (dec)); |
899 | av_push (av, decode_sv (dec)); |
516 | } |
900 | } |
517 | } |
901 | } |
518 | else |
902 | else |
519 | { |
903 | { |
520 | int i, len = decode_uint (dec); |
904 | UV i, len = decode_uint (dec); |
521 | |
905 | |
|
|
906 | WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
522 | av_fill (av, len - 1); |
907 | av_fill (av, len - 1); |
523 | |
908 | |
524 | for (i = 0; i < len; ++i) |
909 | for (i = 0; i < len; ++i) |
525 | AvARRAY (av)[i] = decode_sv (dec); |
910 | AvARRAY (av)[i] = decode_sv (dec); |
526 | } |
911 | } |
527 | |
912 | |
528 | DEC_DEC_DEPTH; |
913 | DEC_DEC_DEPTH; |
529 | return newRV_noinc ((SV *)av); |
914 | return newRV_noinc ((SV *)av); |
530 | |
915 | |
531 | fail: |
916 | fail: |
532 | SvREFCNT_dec (av); |
917 | SvREFCNT_dec_NN (av); |
533 | DEC_DEC_DEPTH; |
918 | DEC_DEC_DEPTH; |
534 | return &PL_sv_undef; |
919 | return &PL_sv_undef; |
535 | } |
920 | } |
536 | |
921 | |
|
|
922 | static void |
|
|
923 | decode_he (dec_t *dec, HV *hv) |
|
|
924 | { |
|
|
925 | // for speed reasons, we specialcase single-string |
|
|
926 | // byte or utf-8 strings as keys, but only when !stringref |
|
|
927 | |
|
|
928 | if (ecb_expect_true (!dec->stringref)) |
|
|
929 | if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
|
|
930 | { |
|
|
931 | STRLEN len = decode_uint (dec); |
|
|
932 | char *key = (char *)dec->cur; |
|
|
933 | |
|
|
934 | WANT (len); |
|
|
935 | dec->cur += len; |
|
|
936 | |
|
|
937 | hv_store (hv, key, len, decode_sv (dec), 0); |
|
|
938 | |
|
|
939 | return; |
|
|
940 | } |
|
|
941 | else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
|
|
942 | { |
|
|
943 | STRLEN len = decode_uint (dec); |
|
|
944 | char *key = (char *)dec->cur; |
|
|
945 | |
|
|
946 | WANT (len); |
|
|
947 | dec->cur += len; |
|
|
948 | |
|
|
949 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
950 | if (!is_utf8_string (key, len)) |
|
|
951 | ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
|
|
952 | |
|
|
953 | hv_store (hv, key, -len, decode_sv (dec), 0); |
|
|
954 | |
|
|
955 | return; |
|
|
956 | } |
|
|
957 | |
|
|
958 | SV *k = decode_sv (dec); |
|
|
959 | SV *v = decode_sv (dec); |
|
|
960 | |
|
|
961 | // we leak memory if uncaught exceptions are thrown by random magical |
|
|
962 | // methods, and this is hopefully the only place where it can happen, |
|
|
963 | // so if there is a chance of an exception, take the very slow path. |
|
|
964 | // since catching exceptions is "undocumented/internal/forbidden" by |
|
|
965 | // the new p5p powers, we need to call out to a perl function :/ |
|
|
966 | if (ecb_expect_false (SvAMAGIC (k))) |
|
|
967 | { |
|
|
968 | dSP; |
|
|
969 | |
|
|
970 | ENTER; SAVETMPS; |
|
|
971 | PUSHMARK (SP); |
|
|
972 | EXTEND (SP, 3); |
|
|
973 | PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
|
|
974 | PUSHs (sv_2mortal (k)); |
|
|
975 | PUSHs (sv_2mortal (v)); |
|
|
976 | |
|
|
977 | PUTBACK; |
|
|
978 | call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
|
|
979 | SPAGAIN; |
|
|
980 | |
|
|
981 | FREETMPS; LEAVE; |
|
|
982 | |
|
|
983 | if (SvTRUE (ERRSV)) |
|
|
984 | ERR_ERRSV; |
|
|
985 | |
|
|
986 | return; |
|
|
987 | } |
|
|
988 | |
|
|
989 | hv_store_ent (hv, k, v, 0); |
|
|
990 | SvREFCNT_dec_NN (k); |
|
|
991 | |
|
|
992 | fail: |
|
|
993 | ; |
|
|
994 | } |
|
|
995 | |
537 | static SV * |
996 | static SV * |
538 | decode_hv (dec_t *dec) |
997 | decode_hv (dec_t *dec) |
539 | { |
998 | { |
540 | HV *hv = newHV (); |
999 | HV *hv = newHV (); |
541 | |
1000 | |
542 | DEC_INC_DEPTH; |
1001 | DEC_INC_DEPTH; |
543 | |
1002 | |
544 | if ((*dec->cur & 31) == 31) |
1003 | if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
545 | { |
1004 | { |
546 | ++dec->cur; |
1005 | ++dec->cur; |
547 | |
1006 | |
548 | for (;;) |
1007 | for (;;) |
549 | { |
1008 | { |
550 | WANT (1); |
1009 | WANT (1); |
551 | |
1010 | |
552 | if (*dec->cur == (0xe0 | 31)) |
1011 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF) || dec->err) |
553 | { |
1012 | { |
554 | ++dec->cur; |
1013 | ++dec->cur; |
555 | break; |
1014 | break; |
556 | } |
1015 | } |
557 | |
1016 | |
558 | SV *k = decode_sv (dec); |
1017 | decode_he (dec, hv); |
559 | SV *v = decode_sv (dec); |
|
|
560 | |
|
|
561 | hv_store_ent (hv, k, v, 0); |
|
|
562 | } |
1018 | } |
563 | } |
1019 | } |
564 | else |
1020 | else |
565 | { |
1021 | { |
566 | int len = decode_uint (dec); |
1022 | UV pairs = decode_uint (dec); |
567 | |
1023 | |
|
|
1024 | WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
|
|
1025 | |
568 | while (len--) |
1026 | while (pairs--) |
569 | { |
1027 | 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 | } |
1028 | } |
576 | |
1029 | |
577 | DEC_DEC_DEPTH; |
1030 | DEC_DEC_DEPTH; |
578 | return newRV_noinc ((SV *)hv); |
1031 | return newRV_noinc ((SV *)hv); |
579 | |
1032 | |
580 | #if 0 |
1033 | fail: |
581 | SV *sv; |
1034 | SvREFCNT_dec_NN (hv); |
582 | HV *hv = newHV (); |
|
|
583 | |
|
|
584 | DEC_INC_DEPTH; |
1035 | DEC_DEC_DEPTH; |
585 | decode_ws (dec); |
1036 | return &PL_sv_undef; |
|
|
1037 | } |
586 | |
1038 | |
587 | for (;;) |
1039 | static SV * |
588 | { |
1040 | decode_str (dec_t *dec, int utf8) |
589 | // heuristic: assume that |
1041 | { |
590 | // a) decode_str + hv_store_ent are abysmally slow. |
1042 | SV *sv = 0; |
591 | // b) most hash keys are short, simple ascii text. |
1043 | |
592 | // => try to "fast-match" such strings to avoid |
1044 | if (ecb_expect_false ((*dec->cur & MINOR_MASK) == MINOR_INDEF)) |
593 | // the overhead of decode_str + hv_store_ent. |
|
|
594 | { |
1045 | { |
595 | SV *value; |
1046 | // indefinite length strings |
596 | char *p = dec->cur; |
1047 | ++dec->cur; |
597 | char *e = p + 24; // only try up to 24 bytes |
|
|
598 | |
1048 | |
|
|
1049 | U8 major = *dec->cur & MAJOR_MISC; |
|
|
1050 | |
|
|
1051 | sv = newSVpvn ("", 0); |
|
|
1052 | |
599 | for (;;) |
1053 | for (;;) |
600 | { |
1054 | { |
601 | // the >= 0x80 is false on most architectures |
1055 | WANT (1); |
602 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
1056 | |
|
|
1057 | if ((*dec->cur - major) > LENGTH_EXT8) |
|
|
1058 | if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
603 | { |
1059 | { |
604 | // slow path, back up and use decode_str |
1060 | ++dec->cur; |
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; |
1061 | break; |
623 | } |
1062 | } |
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 | { |
1063 | else |
689 | dSP; |
1064 | ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
690 | int count; |
|
|
691 | |
1065 | |
692 | ENTER; SAVETMPS; PUSHMARK (SP); |
1066 | STRLEN len = decode_uint (dec); |
693 | XPUSHs (HeVAL (he)); |
|
|
694 | sv_2mortal (sv); |
|
|
695 | |
1067 | |
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 | |
|
|
735 | fail: |
|
|
736 | SvREFCNT_dec (hv); |
|
|
737 | DEC_DEC_DEPTH; |
|
|
738 | return &PL_sv_undef; |
|
|
739 | } |
|
|
740 | |
|
|
741 | static SV * |
|
|
742 | decode_str (dec_t *dec, int utf8) |
|
|
743 | { |
|
|
744 | SV *sv; |
|
|
745 | |
|
|
746 | if ((*dec->cur & 31) == 31) |
|
|
747 | { |
|
|
748 | ++dec->cur; |
|
|
749 | |
|
|
750 | sv = newSVpvn ("", 0); |
|
|
751 | |
|
|
752 | // not very fast, and certainly not robust against illegal input |
|
|
753 | for (;;) |
|
|
754 | { |
|
|
755 | WANT (1); |
1068 | WANT (len); |
756 | |
1069 | sv_catpvn (sv, dec->cur, len); |
757 | if (*dec->cur == (0xe0 | 31)) |
1070 | dec->cur += len; |
758 | { |
|
|
759 | ++dec->cur; |
|
|
760 | break; |
|
|
761 | } |
|
|
762 | |
|
|
763 | SV *sv2 = decode_sv (dec); |
|
|
764 | sv_catsv (sv, sv2); |
|
|
765 | } |
1071 | } |
766 | } |
1072 | } |
767 | else |
1073 | else |
768 | { |
1074 | { |
769 | STRLEN len = decode_uint (dec); |
1075 | STRLEN len = decode_uint (dec); |
770 | |
1076 | |
771 | WANT (len); |
1077 | WANT (len); |
772 | sv = newSVpvn (dec->cur, len); |
1078 | sv = newSVpvn (dec->cur, len); |
773 | dec->cur += len; |
1079 | dec->cur += len; |
|
|
1080 | |
|
|
1081 | if (ecb_expect_false (dec->stringref) |
|
|
1082 | && SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
|
|
1083 | av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
774 | } |
1084 | } |
775 | |
1085 | |
776 | if (utf8) |
1086 | if (utf8) |
|
|
1087 | { |
|
|
1088 | if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
|
|
1089 | if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
|
|
1090 | ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
|
|
1091 | |
777 | SvUTF8_on (sv); |
1092 | SvUTF8_on (sv); |
|
|
1093 | } |
778 | |
1094 | |
779 | return sv; |
1095 | return sv; |
780 | |
1096 | |
781 | fail: |
1097 | fail: |
|
|
1098 | SvREFCNT_dec (sv); |
|
|
1099 | return &PL_sv_undef; |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | static SV * |
|
|
1103 | decode_tagged (dec_t *dec) |
|
|
1104 | { |
|
|
1105 | SV *sv = 0; |
|
|
1106 | UV tag = decode_uint (dec); |
|
|
1107 | |
|
|
1108 | WANT (1); |
|
|
1109 | |
|
|
1110 | switch (tag) |
|
|
1111 | { |
|
|
1112 | case CBOR_TAG_MAGIC: |
|
|
1113 | sv = decode_sv (dec); |
|
|
1114 | break; |
|
|
1115 | |
|
|
1116 | case CBOR_TAG_INDIRECTION: |
|
|
1117 | sv = newRV_noinc (decode_sv (dec)); |
|
|
1118 | break; |
|
|
1119 | |
|
|
1120 | case CBOR_TAG_STRINGREF_NAMESPACE: |
|
|
1121 | { |
|
|
1122 | // do not use SAVETMPS/FREETMPS, as these will |
|
|
1123 | // erase mortalised caches, e.g. "shareable" |
|
|
1124 | ENTER; |
|
|
1125 | |
|
|
1126 | SAVESPTR (dec->stringref); |
|
|
1127 | dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
1128 | |
|
|
1129 | sv = decode_sv (dec); |
|
|
1130 | |
|
|
1131 | LEAVE; |
|
|
1132 | } |
|
|
1133 | break; |
|
|
1134 | |
|
|
1135 | case CBOR_TAG_STRINGREF: |
|
|
1136 | { |
|
|
1137 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
1138 | ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
|
|
1139 | |
|
|
1140 | UV idx = decode_uint (dec); |
|
|
1141 | |
|
|
1142 | if (!dec->stringref || idx >= (UV)(1 + AvFILLp (dec->stringref))) |
|
|
1143 | ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
|
|
1144 | |
|
|
1145 | sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
|
|
1146 | } |
|
|
1147 | break; |
|
|
1148 | |
|
|
1149 | case CBOR_TAG_VALUE_SHAREABLE: |
|
|
1150 | { |
|
|
1151 | if (ecb_expect_false (!dec->shareable)) |
|
|
1152 | dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
1153 | |
|
|
1154 | if (dec->cbor.flags & F_ALLOW_CYCLES) |
|
|
1155 | { |
|
|
1156 | sv = newSV (0); |
|
|
1157 | av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
|
|
1158 | |
|
|
1159 | SV *osv = decode_sv (dec); |
|
|
1160 | sv_setsv (sv, osv); |
|
|
1161 | SvREFCNT_dec_NN (osv); |
|
|
1162 | } |
|
|
1163 | else |
|
|
1164 | { |
|
|
1165 | av_push (dec->shareable, &PL_sv_undef); |
|
|
1166 | int idx = AvFILLp (dec->shareable); |
|
|
1167 | sv = decode_sv (dec); |
|
|
1168 | av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
|
|
1169 | } |
|
|
1170 | } |
|
|
1171 | break; |
|
|
1172 | |
|
|
1173 | case CBOR_TAG_VALUE_SHAREDREF: |
|
|
1174 | { |
|
|
1175 | if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
|
|
1176 | ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
|
|
1177 | |
|
|
1178 | UV idx = decode_uint (dec); |
|
|
1179 | |
|
|
1180 | if (!dec->shareable || idx >= (UV)(1 + AvFILLp (dec->shareable))) |
|
|
1181 | ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
|
|
1182 | |
|
|
1183 | sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
|
|
1184 | |
|
|
1185 | if (sv == &PL_sv_undef) |
|
|
1186 | ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
|
|
1187 | } |
|
|
1188 | break; |
|
|
1189 | |
|
|
1190 | case CBOR_TAG_PERL_OBJECT: |
|
|
1191 | { |
|
|
1192 | if (dec->cbor.flags & F_FORBID_OBJECTS) |
|
|
1193 | goto filter; |
|
|
1194 | |
|
|
1195 | sv = decode_sv (dec); |
|
|
1196 | |
|
|
1197 | if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
|
|
1198 | ERR ("corrupted CBOR data (non-array perl object)"); |
|
|
1199 | |
|
|
1200 | AV *av = (AV *)SvRV (sv); |
|
|
1201 | int len = av_len (av) + 1; |
|
|
1202 | HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
|
|
1203 | |
|
|
1204 | if (!stash) |
|
|
1205 | ERR ("cannot decode perl-object (package does not exist)"); |
|
|
1206 | |
|
|
1207 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
|
|
1208 | |
|
|
1209 | if (!method) |
|
|
1210 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
|
|
1211 | |
|
|
1212 | dSP; |
|
|
1213 | |
|
|
1214 | ENTER; SAVETMPS; |
|
|
1215 | PUSHMARK (SP); |
|
|
1216 | EXTEND (SP, len + 1); |
|
|
1217 | // we re-bless the reference to get overload and other niceties right |
|
|
1218 | PUSHs (*av_fetch (av, 0, 1)); |
|
|
1219 | PUSHs (sv_cbor); |
|
|
1220 | |
|
|
1221 | int i; |
|
|
1222 | |
|
|
1223 | for (i = 1; i < len; ++i) |
|
|
1224 | PUSHs (*av_fetch (av, i, 1)); |
|
|
1225 | |
|
|
1226 | PUTBACK; |
|
|
1227 | call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
|
|
1228 | SPAGAIN; |
|
|
1229 | |
|
|
1230 | if (SvTRUE (ERRSV)) |
|
|
1231 | { |
|
|
1232 | FREETMPS; LEAVE; |
|
|
1233 | ERR_ERRSV; |
|
|
1234 | } |
|
|
1235 | |
|
|
1236 | SvREFCNT_dec_NN (sv); |
|
|
1237 | sv = SvREFCNT_inc (POPs); |
|
|
1238 | |
|
|
1239 | PUTBACK; |
|
|
1240 | |
|
|
1241 | FREETMPS; LEAVE; |
|
|
1242 | } |
|
|
1243 | break; |
|
|
1244 | |
|
|
1245 | default: |
|
|
1246 | filter: |
|
|
1247 | { |
|
|
1248 | SV *tag_sv = newSVuv (tag); |
|
|
1249 | |
|
|
1250 | sv = decode_sv (dec); |
|
|
1251 | |
|
|
1252 | dSP; |
|
|
1253 | ENTER; SAVETMPS; |
|
|
1254 | PUSHMARK (SP); |
|
|
1255 | EXTEND (SP, 2); |
|
|
1256 | PUSHs (tag_sv); |
|
|
1257 | PUSHs (sv); |
|
|
1258 | |
|
|
1259 | PUTBACK; |
|
|
1260 | int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
|
|
1261 | SPAGAIN; |
|
|
1262 | |
|
|
1263 | if (SvTRUE (ERRSV)) |
|
|
1264 | { |
|
|
1265 | SvREFCNT_dec_NN (tag_sv); |
|
|
1266 | FREETMPS; LEAVE; |
|
|
1267 | ERR_ERRSV; |
|
|
1268 | } |
|
|
1269 | |
|
|
1270 | if (count) |
|
|
1271 | { |
|
|
1272 | SvREFCNT_dec_NN (tag_sv); |
|
|
1273 | SvREFCNT_dec_NN (sv); |
|
|
1274 | sv = SvREFCNT_inc_NN (TOPs); |
|
|
1275 | SP -= count; |
|
|
1276 | } |
|
|
1277 | else |
|
|
1278 | { |
|
|
1279 | AV *av = newAV (); |
|
|
1280 | av_push (av, tag_sv); |
|
|
1281 | av_push (av, sv); |
|
|
1282 | |
|
|
1283 | HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
|
|
1284 | ? cbor_tagged_stash |
|
|
1285 | : gv_stashpv ("CBOR::XS::Tagged" , 1); |
|
|
1286 | sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | PUTBACK; |
|
|
1290 | |
|
|
1291 | FREETMPS; LEAVE; |
|
|
1292 | } |
|
|
1293 | break; |
|
|
1294 | } |
|
|
1295 | |
|
|
1296 | return sv; |
|
|
1297 | |
|
|
1298 | fail: |
|
|
1299 | SvREFCNT_dec (sv); |
782 | return &PL_sv_undef; |
1300 | return &PL_sv_undef; |
783 | } |
1301 | } |
784 | |
1302 | |
785 | static SV * |
1303 | static SV * |
786 | decode_sv (dec_t *dec) |
1304 | decode_sv (dec_t *dec) |
787 | { |
1305 | { |
788 | WANT (1); |
1306 | WANT (1); |
789 | |
1307 | |
790 | switch (*dec->cur >> 5) |
1308 | switch (*dec->cur >> MAJOR_SHIFT) |
791 | { |
1309 | { |
792 | case 0: // unsigned int |
1310 | case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
793 | //TODO: 64 bit values on 3 2bit perls |
1311 | case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
794 | return newSVuv (decode_uint (dec)); |
1312 | case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
795 | case 1: // negative int |
1313 | case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
796 | return newSViv (-1 - (IV)decode_uint (dec)); |
1314 | case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
797 | case 2: // octet string |
1315 | case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
798 | return decode_str (dec, 0); |
1316 | case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
799 | case 3: // utf-8 string |
1317 | |
800 | return decode_str (dec, 1); |
1318 | 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) |
1319 | switch (*dec->cur++ & MINOR_MASK) |
810 | { |
1320 | { |
811 | case 20: |
1321 | case SIMPLE_FALSE: |
812 | #if CBOR_SLOW |
1322 | #if CBOR_SLOW |
813 | cbor_false = get_bool ("CBOR::XS::false"); |
1323 | types_false = get_bool ("Types::Serialiser::false"); |
814 | #endif |
1324 | #endif |
815 | return newSVsv (cbor_false); |
1325 | return newSVsv (types_false); |
816 | case 21: |
1326 | case SIMPLE_TRUE: |
817 | #if CBOR_SLOW |
1327 | #if CBOR_SLOW |
818 | cbor_true = get_bool ("CBOR::XS::true"); |
1328 | types_true = get_bool ("Types::Serialiser::true"); |
819 | #endif |
1329 | #endif |
820 | return newSVsv (cbor_true); |
1330 | return newSVsv (types_true); |
821 | case 22: |
1331 | case SIMPLE_NULL: |
822 | return newSVsv (&PL_sv_undef); |
1332 | return newSVsv (&PL_sv_undef); |
|
|
1333 | case SIMPLE_UNDEF: |
|
|
1334 | #if CBOR_SLOW |
|
|
1335 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1336 | #endif |
|
|
1337 | return newSVsv (types_error); |
823 | |
1338 | |
824 | case 25: |
1339 | case MISC_FLOAT16: |
825 | { |
1340 | { |
826 | WANT (2); |
1341 | WANT (2); |
827 | |
1342 | |
828 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1343 | uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
829 | dec->cur += 2; |
1344 | dec->cur += 2; |
830 | |
1345 | |
831 | return newSVnv (ecb_binary16_to_float (fp)); |
1346 | return newSVnv (ecb_binary16_to_float (fp)); |
832 | } |
1347 | } |
833 | |
1348 | |
834 | case 26: |
1349 | case MISC_FLOAT32: |
835 | { |
1350 | { |
836 | uint32_t fp; |
1351 | uint32_t fp; |
837 | WANT (4); |
1352 | WANT (4); |
838 | memcpy (&fp, dec->cur, 4); |
1353 | memcpy (&fp, dec->cur, 4); |
839 | dec->cur += 4; |
1354 | dec->cur += 4; |
… | |
… | |
842 | fp = ecb_bswap32 (fp); |
1357 | fp = ecb_bswap32 (fp); |
843 | |
1358 | |
844 | return newSVnv (ecb_binary32_to_float (fp)); |
1359 | return newSVnv (ecb_binary32_to_float (fp)); |
845 | } |
1360 | } |
846 | |
1361 | |
847 | case 27: |
1362 | case MISC_FLOAT64: |
848 | { |
1363 | { |
849 | uint64_t fp; |
1364 | uint64_t fp; |
850 | WANT (8); |
1365 | WANT (8); |
851 | memcpy (&fp, dec->cur, 8); |
1366 | memcpy (&fp, dec->cur, 8); |
852 | dec->cur += 8; |
1367 | dec->cur += 8; |
… | |
… | |
855 | fp = ecb_bswap64 (fp); |
1370 | fp = ecb_bswap64 (fp); |
856 | |
1371 | |
857 | return newSVnv (ecb_binary64_to_double (fp)); |
1372 | return newSVnv (ecb_binary64_to_double (fp)); |
858 | } |
1373 | } |
859 | |
1374 | |
860 | // 0..19 unassigned |
1375 | // 0..19 unassigned simple |
861 | // 24 reserved + unassigned (reserved values are not encodable) |
1376 | // 24 reserved + unassigned simple (reserved values are not encodable) |
|
|
1377 | // 28-30 unassigned misc |
|
|
1378 | // 31 break code |
862 | default: |
1379 | default: |
863 | ERR ("corrupted CBOR data (reserved/unassigned major 7 value)"); |
1380 | ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
864 | } |
1381 | } |
865 | |
1382 | |
866 | break; |
1383 | break; |
867 | } |
1384 | } |
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 | |
1385 | |
925 | fail: |
1386 | fail: |
926 | return &PL_sv_undef; |
1387 | return &PL_sv_undef; |
927 | } |
1388 | } |
928 | |
1389 | |
929 | static SV * |
1390 | static SV * |
930 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1391 | decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
931 | { |
1392 | { |
932 | dec_t dec; |
1393 | dec_t dec = { 0 }; |
933 | SV *sv; |
1394 | SV *sv; |
|
|
1395 | STRLEN len; |
|
|
1396 | char *data = SvPVbyte (string, len); |
934 | |
1397 | |
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) |
1398 | 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", |
1399 | 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); |
1400 | (unsigned long)len, (unsigned long)cbor->max_size); |
966 | } |
|
|
967 | |
|
|
968 | sv_utf8_downgrade (string, 0); |
|
|
969 | |
1401 | |
970 | dec.cbor = *cbor; |
1402 | dec.cbor = *cbor; |
971 | dec.cur = (U8 *)SvPVX (string); |
1403 | dec.cur = (U8 *)data; |
972 | dec.end = (U8 *)SvEND (string); |
1404 | 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 | |
1405 | |
979 | sv = decode_sv (&dec); |
1406 | sv = decode_sv (&dec); |
980 | |
1407 | |
981 | if (offset_return) |
1408 | if (offset_return) |
982 | *offset_return = dec.cur; |
1409 | *offset_return = dec.cur; |
… | |
… | |
985 | if (dec.cur != dec.end && !dec.err) |
1412 | if (dec.cur != dec.end && !dec.err) |
986 | dec.err = "garbage after CBOR object"; |
1413 | dec.err = "garbage after CBOR object"; |
987 | |
1414 | |
988 | if (dec.err) |
1415 | if (dec.err) |
989 | { |
1416 | { |
|
|
1417 | if (dec.shareable) |
|
|
1418 | { |
|
|
1419 | // need to break cyclic links, which would all be in shareable |
|
|
1420 | int i; |
|
|
1421 | SV **svp; |
|
|
1422 | |
|
|
1423 | for (i = av_len (dec.shareable) + 1; i--; ) |
|
|
1424 | if ((svp = av_fetch (dec.shareable, i, 0))) |
|
|
1425 | sv_setsv (*svp, &PL_sv_undef); |
|
|
1426 | } |
|
|
1427 | |
990 | SvREFCNT_dec (sv); |
1428 | SvREFCNT_dec_NN (sv); |
|
|
1429 | |
|
|
1430 | if (dec.err_sv) |
|
|
1431 | sv_2mortal (dec.err_sv); |
|
|
1432 | |
991 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)SvPVX (string), (int)(uint8_t)*dec.cur); |
1433 | croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
992 | } |
1434 | } |
993 | |
1435 | |
994 | sv = sv_2mortal (sv); |
1436 | sv = sv_2mortal (sv); |
995 | |
1437 | |
996 | return sv; |
1438 | return sv; |
997 | } |
1439 | } |
998 | |
1440 | |
|
|
1441 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1442 | // incremental parser |
|
|
1443 | |
|
|
1444 | #define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
|
|
1445 | |
|
|
1446 | // returns 0 for notyet, 1 for success or error |
|
|
1447 | static int |
|
|
1448 | incr_parse (CBOR *self, SV *cborstr) |
|
|
1449 | { |
|
|
1450 | STRLEN cur; |
|
|
1451 | SvPV (cborstr, cur); |
|
|
1452 | |
|
|
1453 | while (ecb_expect_true (self->incr_need <= cur)) |
|
|
1454 | { |
|
|
1455 | // table of integer count bytes |
|
|
1456 | static I8 incr_len[MINOR_MASK + 1] = { |
|
|
1457 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1458 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1459 | 0, 0, 0, 0, 0, 0, 0, 0, |
|
|
1460 | 1, 2, 4, 8,-1,-1,-1,-2 |
|
|
1461 | }; |
|
|
1462 | |
|
|
1463 | const U8 *p = SvPVX (cborstr) + self->incr_pos; |
|
|
1464 | U8 m = *p & MINOR_MASK; |
|
|
1465 | IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1466 | I8 ilen = incr_len[m]; |
|
|
1467 | |
|
|
1468 | self->incr_need = self->incr_pos + 1; |
|
|
1469 | |
|
|
1470 | if (ecb_expect_false (ilen < 0)) |
|
|
1471 | { |
|
|
1472 | if (m != MINOR_INDEF) |
|
|
1473 | return 1; // error |
|
|
1474 | |
|
|
1475 | if (*p == (MAJOR_MISC | MINOR_INDEF)) |
|
|
1476 | { |
|
|
1477 | if (count >= 0) |
|
|
1478 | return 1; // error |
|
|
1479 | |
|
|
1480 | count = 1; |
|
|
1481 | } |
|
|
1482 | else |
|
|
1483 | { |
|
|
1484 | av_push (self->incr_count, newSViv (-1)); //TODO: nest |
|
|
1485 | count = -1; |
|
|
1486 | } |
|
|
1487 | } |
|
|
1488 | else |
|
|
1489 | { |
|
|
1490 | self->incr_need += ilen; |
|
|
1491 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1492 | return 0; |
|
|
1493 | |
|
|
1494 | int major = *p >> MAJOR_SHIFT; |
|
|
1495 | |
|
|
1496 | switch (major) |
|
|
1497 | { |
|
|
1498 | case MAJOR_TAG >> MAJOR_SHIFT: |
|
|
1499 | ++count; // tags merely prefix another value |
|
|
1500 | break; |
|
|
1501 | |
|
|
1502 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1503 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1504 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1505 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1506 | { |
|
|
1507 | UV len; |
|
|
1508 | |
|
|
1509 | if (ecb_expect_false (ilen)) |
|
|
1510 | { |
|
|
1511 | len = 0; |
|
|
1512 | |
|
|
1513 | do { |
|
|
1514 | len = (len << 8) | *++p; |
|
|
1515 | } while (--ilen); |
|
|
1516 | } |
|
|
1517 | else |
|
|
1518 | len = m; |
|
|
1519 | |
|
|
1520 | switch (major) |
|
|
1521 | { |
|
|
1522 | case MAJOR_BYTES >> MAJOR_SHIFT: |
|
|
1523 | case MAJOR_TEXT >> MAJOR_SHIFT: |
|
|
1524 | self->incr_need += len; |
|
|
1525 | if (ecb_expect_false (self->incr_need > cur)) |
|
|
1526 | return 0; |
|
|
1527 | |
|
|
1528 | break; |
|
|
1529 | |
|
|
1530 | case MAJOR_MAP >> MAJOR_SHIFT: |
|
|
1531 | len <<= 1; |
|
|
1532 | case MAJOR_ARRAY >> MAJOR_SHIFT: |
|
|
1533 | if (len) |
|
|
1534 | { |
|
|
1535 | av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
|
|
1536 | count = len + 1; |
|
|
1537 | } |
|
|
1538 | break; |
|
|
1539 | } |
|
|
1540 | } |
|
|
1541 | } |
|
|
1542 | } |
|
|
1543 | |
|
|
1544 | self->incr_pos = self->incr_need; |
|
|
1545 | |
|
|
1546 | if (count > 0) |
|
|
1547 | { |
|
|
1548 | while (!--count) |
|
|
1549 | { |
|
|
1550 | if (!AvFILLp (self->incr_count)) |
|
|
1551 | return 1; // done |
|
|
1552 | |
|
|
1553 | SvREFCNT_dec_NN (av_pop (self->incr_count)); |
|
|
1554 | count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
|
|
1555 | } |
|
|
1556 | |
|
|
1557 | SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
|
|
1558 | } |
|
|
1559 | } |
|
|
1560 | |
|
|
1561 | return 0; |
|
|
1562 | } |
|
|
1563 | |
|
|
1564 | |
999 | ///////////////////////////////////////////////////////////////////////////// |
1565 | ///////////////////////////////////////////////////////////////////////////// |
1000 | // XS interface functions |
1566 | // XS interface functions |
1001 | |
1567 | |
1002 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1568 | MODULE = CBOR::XS PACKAGE = CBOR::XS |
1003 | |
1569 | |
1004 | BOOT: |
1570 | BOOT: |
1005 | { |
1571 | { |
1006 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1572 | cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1007 | cbor_boolean_stash = gv_stashpv ("CBOR::XS::Boolean", 1); |
1573 | cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1008 | |
1574 | |
1009 | cbor_true = get_bool ("CBOR::XS::true"); |
1575 | types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
1010 | cbor_false = get_bool ("CBOR::XS::false"); |
1576 | types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
|
|
1577 | |
|
|
1578 | types_true = get_bool ("Types::Serialiser::true" ); |
|
|
1579 | types_false = get_bool ("Types::Serialiser::false"); |
|
|
1580 | types_error = get_bool ("Types::Serialiser::error"); |
|
|
1581 | |
|
|
1582 | default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
|
|
1583 | |
|
|
1584 | sv_cbor = newSVpv ("CBOR", 0); |
|
|
1585 | SvREADONLY_on (sv_cbor); |
|
|
1586 | |
|
|
1587 | assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1)); |
1011 | } |
1588 | } |
1012 | |
1589 | |
1013 | PROTOTYPES: DISABLE |
1590 | PROTOTYPES: DISABLE |
1014 | |
1591 | |
1015 | void CLONE (...) |
1592 | void CLONE (...) |
1016 | CODE: |
1593 | CODE: |
1017 | cbor_stash = 0; |
1594 | cbor_stash = 0; |
|
|
1595 | cbor_tagged_stash = 0; |
|
|
1596 | types_error_stash = 0; |
1018 | cbor_boolean_stash = 0; |
1597 | types_boolean_stash = 0; |
1019 | |
1598 | |
1020 | void new (char *klass) |
1599 | void new (char *klass) |
1021 | PPCODE: |
1600 | PPCODE: |
1022 | { |
1601 | { |
1023 | SV *pv = NEWSV (0, sizeof (CBOR)); |
1602 | SV *pv = NEWSV (0, sizeof (CBOR)); |
… | |
… | |
1031 | |
1610 | |
1032 | void shrink (CBOR *self, int enable = 1) |
1611 | void shrink (CBOR *self, int enable = 1) |
1033 | ALIAS: |
1612 | ALIAS: |
1034 | shrink = F_SHRINK |
1613 | shrink = F_SHRINK |
1035 | allow_unknown = F_ALLOW_UNKNOWN |
1614 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1615 | allow_sharing = F_ALLOW_SHARING |
|
|
1616 | allow_cycles = F_ALLOW_CYCLES |
|
|
1617 | forbid_objects = F_FORBID_OBJECTS |
|
|
1618 | pack_strings = F_PACK_STRINGS |
|
|
1619 | text_keys = F_TEXT_KEYS |
|
|
1620 | text_strings = F_TEXT_STRINGS |
|
|
1621 | validate_utf8 = F_VALIDATE_UTF8 |
1036 | PPCODE: |
1622 | PPCODE: |
1037 | { |
1623 | { |
1038 | if (enable) |
1624 | if (enable) |
1039 | self->flags |= ix; |
1625 | self->flags |= ix; |
1040 | else |
1626 | else |
… | |
… | |
1045 | |
1631 | |
1046 | void get_shrink (CBOR *self) |
1632 | void get_shrink (CBOR *self) |
1047 | ALIAS: |
1633 | ALIAS: |
1048 | get_shrink = F_SHRINK |
1634 | get_shrink = F_SHRINK |
1049 | get_allow_unknown = F_ALLOW_UNKNOWN |
1635 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1636 | get_allow_sharing = F_ALLOW_SHARING |
|
|
1637 | get_allow_cycles = F_ALLOW_CYCLES |
|
|
1638 | get_forbid_objects = F_FORBID_OBJECTS |
|
|
1639 | get_pack_strings = F_PACK_STRINGS |
|
|
1640 | get_text_keys = F_TEXT_KEYS |
|
|
1641 | get_text_strings = F_TEXT_STRINGS |
|
|
1642 | get_validate_utf8 = F_VALIDATE_UTF8 |
1050 | PPCODE: |
1643 | PPCODE: |
1051 | XPUSHs (boolSV (self->flags & ix)); |
1644 | XPUSHs (boolSV (self->flags & ix)); |
1052 | |
1645 | |
1053 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1646 | void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1054 | PPCODE: |
1647 | PPCODE: |
… | |
… | |
1070 | CODE: |
1663 | CODE: |
1071 | RETVAL = self->max_size; |
1664 | RETVAL = self->max_size; |
1072 | OUTPUT: |
1665 | OUTPUT: |
1073 | RETVAL |
1666 | RETVAL |
1074 | |
1667 | |
1075 | #if 0 //TODO |
1668 | void filter (CBOR *self, SV *filter = 0) |
1076 | |
|
|
1077 | void filter_cbor_object (CBOR *self, SV *cb = &PL_sv_undef) |
|
|
1078 | PPCODE: |
1669 | PPCODE: |
1079 | { |
|
|
1080 | SvREFCNT_dec (self->cb_object); |
1670 | SvREFCNT_dec (self->filter); |
1081 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1671 | self->filter = filter ? newSVsv (filter) : filter; |
1082 | |
|
|
1083 | XPUSHs (ST (0)); |
1672 | XPUSHs (ST (0)); |
1084 | } |
|
|
1085 | |
1673 | |
1086 | void filter_cbor_single_key_object (CBOR *self, SV *key, SV *cb = &PL_sv_undef) |
1674 | SV *get_filter (CBOR *self) |
1087 | PPCODE: |
1675 | CODE: |
1088 | { |
1676 | RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1089 | if (!self->cb_sk_object) |
1677 | OUTPUT: |
1090 | self->cb_sk_object = newHV (); |
1678 | 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 | |
1679 | |
1110 | void encode (CBOR *self, SV *scalar) |
1680 | void encode (CBOR *self, SV *scalar) |
1111 | PPCODE: |
1681 | PPCODE: |
1112 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1682 | PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1113 | XPUSHs (scalar); |
1683 | XPUSHs (scalar); |
… | |
… | |
1126 | EXTEND (SP, 2); |
1696 | EXTEND (SP, 2); |
1127 | PUSHs (sv); |
1697 | PUSHs (sv); |
1128 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1698 | PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1129 | } |
1699 | } |
1130 | |
1700 | |
|
|
1701 | void incr_parse (CBOR *self, SV *cborstr) |
|
|
1702 | ALIAS: |
|
|
1703 | incr_parse_multiple = 1 |
|
|
1704 | PPCODE: |
|
|
1705 | { |
|
|
1706 | if (SvUTF8 (cborstr)) |
|
|
1707 | sv_utf8_downgrade (cborstr, 0); |
|
|
1708 | |
|
|
1709 | if (!self->incr_count) |
|
|
1710 | { |
|
|
1711 | self->incr_count = newAV (); |
|
|
1712 | self->incr_pos = 0; |
|
|
1713 | self->incr_need = 1; |
|
|
1714 | |
|
|
1715 | av_push (self->incr_count, newSViv (1)); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | do |
|
|
1719 | { |
|
|
1720 | if (!incr_parse (self, cborstr)) |
|
|
1721 | { |
|
|
1722 | if (self->incr_need > self->max_size && self->max_size) |
|
|
1723 | croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
|
|
1724 | (unsigned long)self->incr_need, (unsigned long)self->max_size); |
|
|
1725 | |
|
|
1726 | break; |
|
|
1727 | } |
|
|
1728 | |
|
|
1729 | SV *sv; |
|
|
1730 | char *offset; |
|
|
1731 | |
|
|
1732 | PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
|
|
1733 | XPUSHs (sv); |
|
|
1734 | |
|
|
1735 | sv_chop (cborstr, offset); |
|
|
1736 | |
|
|
1737 | av_clear (self->incr_count); |
|
|
1738 | av_push (self->incr_count, newSViv (1)); |
|
|
1739 | |
|
|
1740 | self->incr_pos = 0; |
|
|
1741 | self->incr_need = self->incr_pos + 1; |
|
|
1742 | } |
|
|
1743 | while (ix); |
|
|
1744 | } |
|
|
1745 | |
|
|
1746 | void incr_reset (CBOR *self) |
|
|
1747 | CODE: |
|
|
1748 | { |
|
|
1749 | SvREFCNT_dec (self->incr_count); |
|
|
1750 | self->incr_count = 0; |
|
|
1751 | } |
|
|
1752 | |
1131 | void DESTROY (CBOR *self) |
1753 | void DESTROY (CBOR *self) |
1132 | CODE: |
1754 | PPCODE: |
1133 | SvREFCNT_dec (self->cb_sk_object); |
1755 | cbor_free (self); |
1134 | SvREFCNT_dec (self->cb_object); |
|
|
1135 | |
1756 | |
1136 | PROTOTYPES: ENABLE |
1757 | PROTOTYPES: ENABLE |
1137 | |
1758 | |
1138 | void encode_cbor (SV *scalar) |
1759 | void encode_cbor (SV *scalar) |
|
|
1760 | ALIAS: |
|
|
1761 | encode_cbor = 0 |
|
|
1762 | encode_cbor_sharing = F_ALLOW_SHARING |
1139 | PPCODE: |
1763 | PPCODE: |
1140 | { |
1764 | { |
1141 | CBOR cbor; |
1765 | CBOR cbor; |
1142 | cbor_init (&cbor); |
1766 | cbor_init (&cbor); |
|
|
1767 | cbor.flags |= ix; |
1143 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1768 | PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1144 | XPUSHs (scalar); |
1769 | XPUSHs (scalar); |
1145 | } |
1770 | } |
1146 | |
1771 | |
1147 | void decode_cbor (SV *cborstr) |
1772 | void decode_cbor (SV *cborstr) |
… | |
… | |
1151 | cbor_init (&cbor); |
1776 | cbor_init (&cbor); |
1152 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1777 | PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1153 | XPUSHs (cborstr); |
1778 | XPUSHs (cborstr); |
1154 | } |
1779 | } |
1155 | |
1780 | |
|
|
1781 | #ifdef __AFL_COMPILER |
|
|
1782 | |
|
|
1783 | void |
|
|
1784 | afl_init () |
|
|
1785 | CODE: |
|
|
1786 | __AFL_INIT (); |
|
|
1787 | |
|
|
1788 | int |
|
|
1789 | afl_loop (unsigned int count = 10000) |
|
|
1790 | CODE: |
|
|
1791 | RETVAL = __AFL_LOOP (count); |
|
|
1792 | OUTPUT: |
|
|
1793 | RETVAL |
|
|
1794 | |
|
|
1795 | #endif |
|
|
1796 | |