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1.1 |
#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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#include <assert.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <limits.h> |
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#include <float.h> |
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1.61 |
#include <inttypes.h> |
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1.1 |
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1.44 |
#define ECB_NO_THREADS 1 |
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1.1 |
#include "ecb.h" |
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1.14 |
// compatibility with perl <5.18 |
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#ifndef HvNAMELEN_get |
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# define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
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#endif |
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#ifndef HvNAMELEN |
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# define HvNAMELEN(hv) HvNAMELEN_get (hv) |
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#endif |
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#ifndef HvNAMEUTF8 |
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# define HvNAMEUTF8(hv) 0 |
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#endif |
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1.28 |
#ifndef SvREFCNT_dec_NN |
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# define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
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#endif |
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1.14 |
|
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1.35 |
// known major and minor types |
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enum cbor_type |
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{ |
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MAJOR_SHIFT = 5, |
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MINOR_MASK = 0x1f, |
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MAJOR_POS_INT = 0 << MAJOR_SHIFT, |
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MAJOR_NEG_INT = 1 << MAJOR_SHIFT, |
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MAJOR_BYTES = 2 << MAJOR_SHIFT, |
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MAJOR_TEXT = 3 << MAJOR_SHIFT, |
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MAJOR_ARRAY = 4 << MAJOR_SHIFT, |
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MAJOR_MAP = 5 << MAJOR_SHIFT, |
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MAJOR_TAG = 6 << MAJOR_SHIFT, |
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MAJOR_MISC = 7 << MAJOR_SHIFT, |
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// INT/STRING/ARRAY/MAP subtypes |
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LENGTH_EXT1 = 24, |
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LENGTH_EXT2 = 25, |
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LENGTH_EXT4 = 26, |
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LENGTH_EXT8 = 27, |
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51 |
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// SIMPLE types (effectively MISC subtypes) |
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SIMPLE_FALSE = 20, |
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SIMPLE_TRUE = 21, |
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SIMPLE_NULL = 22, |
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SIMPLE_UNDEF = 23, |
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57 |
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// MISC subtype (unused) |
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MISC_EXT1 = 24, |
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MISC_FLOAT16 = 25, |
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MISC_FLOAT32 = 26, |
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MISC_FLOAT64 = 27, |
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// BYTES/TEXT/ARRAY/MAP |
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MINOR_INDEF = 31, |
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}; |
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1.9 |
// known tags |
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1.8 |
enum cbor_tag |
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{ |
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1.35 |
// extensions |
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CBOR_TAG_STRINGREF = 25, // http://cbor.schmorp.de/stringref |
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CBOR_TAG_PERL_OBJECT = 26, // http://cbor.schmorp.de/perl-object |
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CBOR_TAG_GENERIC_OBJECT = 27, // http://cbor.schmorp.de/generic-object |
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CBOR_TAG_VALUE_SHAREABLE = 28, // http://cbor.schmorp.de/value-sharing |
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CBOR_TAG_VALUE_SHAREDREF = 29, // http://cbor.schmorp.de/value-sharing |
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CBOR_TAG_STRINGREF_NAMESPACE = 256, // http://cbor.schmorp.de/stringref |
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CBOR_TAG_INDIRECTION = 22098, // http://cbor.schmorp.de/indirection |
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// rfc7049 |
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CBOR_TAG_DATETIME = 0, // rfc4287, utf-8 |
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CBOR_TAG_TIMESTAMP = 1, // unix timestamp, any |
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CBOR_TAG_POS_BIGNUM = 2, // byte string |
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CBOR_TAG_NEG_BIGNUM = 3, // byte string |
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CBOR_TAG_DECIMAL = 4, // decimal fraction, array |
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CBOR_TAG_BIGFLOAT = 5, // array |
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CBOR_TAG_CONV_B64U = 21, // base64url, any |
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CBOR_TAG_CONV_B64 = 22, // base64, any |
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CBOR_TAG_CONV_HEX = 23, // base16, any |
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CBOR_TAG_CBOR = 24, // embedded cbor, byte string |
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CBOR_TAG_URI = 32, // URI rfc3986, utf-8 |
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CBOR_TAG_B64U = 33, // base64url rfc4648, utf-8 |
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CBOR_TAG_B64 = 34, // base6 rfc46484, utf-8 |
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CBOR_TAG_REGEX = 35, // regex pcre/ecma262, utf-8 |
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CBOR_TAG_MIME = 36, // mime message rfc2045, utf-8 |
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1.8 |
|
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1.35 |
CBOR_TAG_MAGIC = 55799, // self-describe cbor |
99 |
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1.8 |
}; |
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1.24 |
#define F_SHRINK 0x00000001UL |
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#define F_ALLOW_UNKNOWN 0x00000002UL |
103 |
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1.32 |
#define F_ALLOW_SHARING 0x00000004UL |
104 |
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1.37 |
#define F_ALLOW_CYCLES 0x00000008UL |
105 |
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1.60 |
#define F_FORBID_OBJECTS 0x00000010UL |
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#define F_PACK_STRINGS 0x00000020UL |
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#define F_TEXT_KEYS 0x00000040UL |
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#define F_TEXT_STRINGS 0x00000080UL |
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#define F_VALIDATE_UTF8 0x00000100UL |
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1.1 |
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#define INIT_SIZE 32 // initial scalar size to be allocated |
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113 |
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#define SB do { |
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#define SE } while (0) |
115 |
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#define IN_RANGE_INC(type,val,beg,end) \ |
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((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
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<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
119 |
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120 |
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#define ERR_NESTING_EXCEEDED "cbor text or perl structure exceeds maximum nesting level (max_depth set too low?)" |
121 |
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122 |
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#ifdef USE_ITHREADS |
123 |
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# define CBOR_SLOW 1 |
124 |
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# define CBOR_STASH (cbor_stash ? cbor_stash : gv_stashpv ("CBOR::XS", 1)) |
125 |
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#else |
126 |
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# define CBOR_SLOW 0 |
127 |
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# define CBOR_STASH cbor_stash |
128 |
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#endif |
129 |
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1.10 |
static HV *cbor_stash, *types_boolean_stash, *types_error_stash, *cbor_tagged_stash; // CBOR::XS:: |
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1.27 |
static SV *types_true, *types_false, *types_error, *sv_cbor, *default_filter; |
132 |
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1.1 |
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133 |
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typedef struct { |
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U32 flags; |
135 |
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U32 max_depth; |
136 |
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STRLEN max_size; |
137 |
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1.27 |
SV *filter; |
138 |
root |
1.40 |
|
139 |
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// for the incremental parser |
140 |
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STRLEN incr_pos; // the current offset into the text |
141 |
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STRLEN incr_need; // minimum bytes needed to decode |
142 |
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AV *incr_count; // for every nesting level, the number of outstanding values, or -1 for indef. |
143 |
root |
1.1 |
} CBOR; |
144 |
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145 |
root |
1.5 |
ecb_inline void |
146 |
root |
1.1 |
cbor_init (CBOR *cbor) |
147 |
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{ |
148 |
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Zero (cbor, 1, CBOR); |
149 |
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cbor->max_depth = 512; |
150 |
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} |
151 |
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152 |
root |
1.27 |
ecb_inline void |
153 |
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cbor_free (CBOR *cbor) |
154 |
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{ |
155 |
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SvREFCNT_dec (cbor->filter); |
156 |
root |
1.40 |
SvREFCNT_dec (cbor->incr_count); |
157 |
root |
1.27 |
} |
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159 |
root |
1.1 |
///////////////////////////////////////////////////////////////////////////// |
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// utility functions |
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162 |
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1.5 |
ecb_inline SV * |
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1.1 |
get_bool (const char *name) |
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{ |
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SV *sv = get_sv (name, 1); |
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167 |
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SvREADONLY_on (sv); |
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SvREADONLY_on (SvRV (sv)); |
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170 |
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return sv; |
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} |
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173 |
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1.5 |
ecb_inline void |
174 |
root |
1.1 |
shrink (SV *sv) |
175 |
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{ |
176 |
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sv_utf8_downgrade (sv, 1); |
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178 |
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if (SvLEN (sv) > SvCUR (sv) + 1) |
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{ |
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#ifdef SvPV_shrink_to_cur |
181 |
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SvPV_shrink_to_cur (sv); |
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#elif defined (SvPV_renew) |
183 |
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SvPV_renew (sv, SvCUR (sv) + 1); |
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#endif |
185 |
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} |
186 |
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} |
187 |
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188 |
root |
1.21 |
// minimum length of a string to be registered for stringref |
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ecb_inline int |
190 |
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minimum_string_length (UV idx) |
191 |
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{ |
192 |
root |
1.61 |
return idx <= 23 ? 3 |
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: idx <= 0xffU ? 4 |
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: idx <= 0xffffU ? 5 |
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: idx <= 0xffffffffU ? 7 |
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: 11; |
197 |
root |
1.21 |
} |
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199 |
root |
1.1 |
///////////////////////////////////////////////////////////////////////////// |
200 |
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// encoder |
201 |
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202 |
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// structure used for encoding CBOR |
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typedef struct |
204 |
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{ |
205 |
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char *cur; // SvPVX (sv) + current output position |
206 |
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char *end; // SvEND (sv) |
207 |
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SV *sv; // result scalar |
208 |
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CBOR cbor; |
209 |
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U32 depth; // recursion level |
210 |
root |
1.20 |
HV *stringref[2]; // string => index, or 0 ([0] = bytes, [1] = utf-8) |
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UV stringref_idx; |
212 |
root |
1.19 |
HV *shareable; // ptr => index, or 0 |
213 |
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UV shareable_idx; |
214 |
root |
1.1 |
} enc_t; |
215 |
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216 |
root |
1.5 |
ecb_inline void |
217 |
root |
1.1 |
need (enc_t *enc, STRLEN len) |
218 |
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{ |
219 |
root |
1.61 |
if (ecb_expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
220 |
root |
1.1 |
{ |
221 |
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STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
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SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1); |
223 |
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enc->cur = SvPVX (enc->sv) + cur; |
224 |
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enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
225 |
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} |
226 |
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} |
227 |
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228 |
root |
1.5 |
ecb_inline void |
229 |
root |
1.1 |
encode_ch (enc_t *enc, char ch) |
230 |
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{ |
231 |
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need (enc, 1); |
232 |
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*enc->cur++ = ch; |
233 |
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} |
234 |
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235 |
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static void |
236 |
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encode_uint (enc_t *enc, int major, UV len) |
237 |
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{ |
238 |
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need (enc, 9); |
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240 |
root |
1.35 |
if (ecb_expect_true (len < LENGTH_EXT1)) |
241 |
root |
1.1 |
*enc->cur++ = major | len; |
242 |
root |
1.36 |
else if (ecb_expect_true (len <= 0xffU)) |
243 |
root |
1.1 |
{ |
244 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT1; |
245 |
root |
1.1 |
*enc->cur++ = len; |
246 |
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} |
247 |
root |
1.36 |
else if (len <= 0xffffU) |
248 |
root |
1.1 |
{ |
249 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT2; |
250 |
root |
1.1 |
*enc->cur++ = len >> 8; |
251 |
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*enc->cur++ = len; |
252 |
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} |
253 |
root |
1.36 |
else if (len <= 0xffffffffU) |
254 |
root |
1.1 |
{ |
255 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT4; |
256 |
root |
1.1 |
*enc->cur++ = len >> 24; |
257 |
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*enc->cur++ = len >> 16; |
258 |
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*enc->cur++ = len >> 8; |
259 |
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*enc->cur++ = len; |
260 |
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} |
261 |
root |
1.4 |
else |
262 |
root |
1.1 |
{ |
263 |
root |
1.35 |
*enc->cur++ = major | LENGTH_EXT8; |
264 |
root |
1.1 |
*enc->cur++ = len >> 56; |
265 |
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*enc->cur++ = len >> 48; |
266 |
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*enc->cur++ = len >> 40; |
267 |
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*enc->cur++ = len >> 32; |
268 |
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*enc->cur++ = len >> 24; |
269 |
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*enc->cur++ = len >> 16; |
270 |
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*enc->cur++ = len >> 8; |
271 |
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*enc->cur++ = len; |
272 |
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} |
273 |
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} |
274 |
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275 |
root |
1.21 |
ecb_inline void |
276 |
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encode_tag (enc_t *enc, UV tag) |
277 |
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{ |
278 |
root |
1.35 |
encode_uint (enc, MAJOR_TAG, tag); |
279 |
root |
1.21 |
} |
280 |
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281 |
root |
1.53 |
// exceptional (hopefully) slow path for byte strings that need to be utf8-encoded |
282 |
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ecb_noinline static void |
283 |
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encode_str_utf8 (enc_t *enc, int utf8, char *str, STRLEN len) |
284 |
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{ |
285 |
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STRLEN ulen = len; |
286 |
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U8 *p, *pend = (U8 *)str + len; |
287 |
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288 |
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for (p = (U8 *)str; p < pend; ++p) |
289 |
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ulen += *p >> 7; // count set high bits |
290 |
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291 |
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encode_uint (enc, MAJOR_TEXT, ulen); |
292 |
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293 |
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need (enc, ulen); |
294 |
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for (p = (U8 *)str; p < pend; ++p) |
295 |
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if (*p < 0x80) |
296 |
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*enc->cur++ = *p; |
297 |
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else |
298 |
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{ |
299 |
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*enc->cur++ = 0xc0 + (*p >> 6); |
300 |
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*enc->cur++ = 0x80 + (*p & 63); |
301 |
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} |
302 |
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} |
303 |
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304 |
root |
1.30 |
ecb_inline void |
305 |
root |
1.53 |
encode_str (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
306 |
root |
1.30 |
{ |
307 |
root |
1.53 |
if (ecb_expect_false (upgrade_utf8)) |
308 |
root |
1.51 |
if (!utf8) |
309 |
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{ |
310 |
root |
1.53 |
encode_str_utf8 (enc, utf8, str, len); |
311 |
root |
1.51 |
return; |
312 |
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} |
313 |
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314 |
root |
1.35 |
encode_uint (enc, utf8 ? MAJOR_TEXT : MAJOR_BYTES, len); |
315 |
root |
1.30 |
need (enc, len); |
316 |
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memcpy (enc->cur, str, len); |
317 |
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enc->cur += len; |
318 |
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} |
319 |
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320 |
root |
1.54 |
ecb_inline void |
321 |
root |
1.53 |
encode_strref (enc_t *enc, int upgrade_utf8, int utf8, char *str, STRLEN len) |
322 |
root |
1.1 |
{ |
323 |
root |
1.32 |
if (ecb_expect_false (enc->cbor.flags & F_PACK_STRINGS)) |
324 |
root |
1.21 |
{ |
325 |
root |
1.22 |
SV **svp = hv_fetch (enc->stringref[!!utf8], str, len, 1); |
326 |
root |
1.21 |
|
327 |
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if (SvOK (*svp)) |
328 |
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{ |
329 |
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// already registered, use stringref |
330 |
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encode_tag (enc, CBOR_TAG_STRINGREF); |
331 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
332 |
root |
1.21 |
return; |
333 |
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} |
334 |
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else if (len >= minimum_string_length (enc->stringref_idx)) |
335 |
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{ |
336 |
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// register only |
337 |
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sv_setuv (*svp, enc->stringref_idx); |
338 |
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++enc->stringref_idx; |
339 |
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} |
340 |
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} |
341 |
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342 |
root |
1.53 |
encode_str (enc, upgrade_utf8, utf8, str, len); |
343 |
root |
1.1 |
} |
344 |
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345 |
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static void encode_sv (enc_t *enc, SV *sv); |
346 |
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347 |
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static void |
348 |
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encode_av (enc_t *enc, AV *av) |
349 |
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{ |
350 |
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int i, len = av_len (av); |
351 |
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352 |
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if (enc->depth >= enc->cbor.max_depth) |
353 |
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croak (ERR_NESTING_EXCEEDED); |
354 |
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355 |
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++enc->depth; |
356 |
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|
357 |
root |
1.35 |
encode_uint (enc, MAJOR_ARRAY, len + 1); |
358 |
root |
1.1 |
|
359 |
root |
1.45 |
if (SvMAGICAL (av)) |
360 |
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for (i = 0; i <= len; ++i) |
361 |
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{ |
362 |
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SV **svp = av_fetch (av, i, 0); |
363 |
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encode_sv (enc, svp ? *svp : &PL_sv_undef); |
364 |
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} |
365 |
|
|
else |
366 |
|
|
for (i = 0; i <= len; ++i) |
367 |
root |
1.46 |
{ |
368 |
|
|
SV *sv = AvARRAY (av)[i]; |
369 |
|
|
encode_sv (enc, sv ? sv : &PL_sv_undef); |
370 |
|
|
} |
371 |
root |
1.1 |
|
372 |
|
|
--enc->depth; |
373 |
|
|
} |
374 |
|
|
|
375 |
|
|
static void |
376 |
|
|
encode_hv (enc_t *enc, HV *hv) |
377 |
|
|
{ |
378 |
|
|
HE *he; |
379 |
|
|
|
380 |
|
|
if (enc->depth >= enc->cbor.max_depth) |
381 |
|
|
croak (ERR_NESTING_EXCEEDED); |
382 |
|
|
|
383 |
|
|
++enc->depth; |
384 |
|
|
|
385 |
|
|
int pairs = hv_iterinit (hv); |
386 |
|
|
int mg = SvMAGICAL (hv); |
387 |
|
|
|
388 |
|
|
if (mg) |
389 |
root |
1.35 |
encode_ch (enc, MAJOR_MAP | MINOR_INDEF); |
390 |
root |
1.1 |
else |
391 |
root |
1.35 |
encode_uint (enc, MAJOR_MAP, pairs); |
392 |
root |
1.1 |
|
393 |
|
|
while ((he = hv_iternext (hv))) |
394 |
|
|
{ |
395 |
root |
1.21 |
if (HeKLEN (he) == HEf_SVKEY) |
396 |
|
|
encode_sv (enc, HeSVKEY (he)); |
397 |
root |
1.1 |
else |
398 |
root |
1.54 |
encode_strref (enc, enc->cbor.flags & (F_TEXT_KEYS | F_TEXT_STRINGS), HeKUTF8 (he), HeKEY (he), HeKLEN (he)); |
399 |
root |
1.1 |
|
400 |
root |
1.5 |
encode_sv (enc, ecb_expect_false (mg) ? hv_iterval (hv, he) : HeVAL (he)); |
401 |
root |
1.1 |
} |
402 |
|
|
|
403 |
|
|
if (mg) |
404 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | MINOR_INDEF); |
405 |
root |
1.1 |
|
406 |
|
|
--enc->depth; |
407 |
|
|
} |
408 |
|
|
|
409 |
|
|
// encode objects, arrays and special \0=false and \1=true values. |
410 |
|
|
static void |
411 |
|
|
encode_rv (enc_t *enc, SV *sv) |
412 |
|
|
{ |
413 |
root |
1.19 |
SvGETMAGIC (sv); |
414 |
root |
1.1 |
|
415 |
root |
1.19 |
svtype svt = SvTYPE (sv); |
416 |
root |
1.18 |
|
417 |
root |
1.5 |
if (ecb_expect_false (SvOBJECT (sv))) |
418 |
root |
1.1 |
{ |
419 |
root |
1.10 |
HV *boolean_stash = !CBOR_SLOW || types_boolean_stash |
420 |
|
|
? types_boolean_stash |
421 |
|
|
: gv_stashpv ("Types::Serialiser::Boolean", 1); |
422 |
|
|
HV *error_stash = !CBOR_SLOW || types_error_stash |
423 |
|
|
? types_error_stash |
424 |
|
|
: gv_stashpv ("Types::Serialiser::Error", 1); |
425 |
root |
1.6 |
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
426 |
|
|
? cbor_tagged_stash |
427 |
|
|
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
428 |
root |
1.1 |
|
429 |
root |
1.11 |
HV *stash = SvSTASH (sv); |
430 |
|
|
|
431 |
|
|
if (stash == boolean_stash) |
432 |
root |
1.34 |
{ |
433 |
root |
1.35 |
encode_ch (enc, SvIV (sv) ? MAJOR_MISC | SIMPLE_TRUE : MAJOR_MISC | SIMPLE_FALSE); |
434 |
root |
1.34 |
return; |
435 |
|
|
} |
436 |
root |
1.11 |
else if (stash == error_stash) |
437 |
root |
1.34 |
{ |
438 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
439 |
root |
1.34 |
return; |
440 |
|
|
} |
441 |
root |
1.11 |
else if (stash == tagged_stash) |
442 |
root |
1.6 |
{ |
443 |
|
|
if (svt != SVt_PVAV) |
444 |
|
|
croak ("encountered CBOR::XS::Tagged object that isn't an array"); |
445 |
|
|
|
446 |
root |
1.35 |
encode_uint (enc, MAJOR_TAG, SvUV (*av_fetch ((AV *)sv, 0, 1))); |
447 |
root |
1.6 |
encode_sv (enc, *av_fetch ((AV *)sv, 1, 1)); |
448 |
root |
1.34 |
|
449 |
|
|
return; |
450 |
root |
1.6 |
} |
451 |
root |
1.34 |
} |
452 |
|
|
|
453 |
|
|
if (ecb_expect_false (SvREFCNT (sv) > 1) |
454 |
|
|
&& ecb_expect_false (enc->cbor.flags & F_ALLOW_SHARING)) |
455 |
|
|
{ |
456 |
|
|
if (!enc->shareable) |
457 |
|
|
enc->shareable = (HV *)sv_2mortal ((SV *)newHV ()); |
458 |
|
|
|
459 |
|
|
SV **svp = hv_fetch (enc->shareable, (char *)&sv, sizeof (sv), 1); |
460 |
|
|
|
461 |
|
|
if (SvOK (*svp)) |
462 |
|
|
{ |
463 |
|
|
encode_tag (enc, CBOR_TAG_VALUE_SHAREDREF); |
464 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvUV (*svp)); |
465 |
root |
1.34 |
return; |
466 |
|
|
} |
467 |
|
|
else |
468 |
|
|
{ |
469 |
|
|
sv_setuv (*svp, enc->shareable_idx); |
470 |
|
|
++enc->shareable_idx; |
471 |
|
|
encode_tag (enc, CBOR_TAG_VALUE_SHAREABLE); |
472 |
|
|
} |
473 |
|
|
} |
474 |
|
|
|
475 |
|
|
if (ecb_expect_false (SvOBJECT (sv))) |
476 |
|
|
{ |
477 |
|
|
HV *stash = SvSTASH (sv); |
478 |
|
|
GV *method; |
479 |
|
|
|
480 |
root |
1.60 |
if (enc->cbor.flags & F_FORBID_OBJECTS) |
481 |
|
|
croak ("encountered object '%s', but forbid_objects is enabled", |
482 |
|
|
SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
483 |
|
|
else if ((method = gv_fetchmethod_autoload (stash, "TO_CBOR", 0))) |
484 |
root |
1.1 |
{ |
485 |
root |
1.11 |
dSP; |
486 |
|
|
|
487 |
root |
1.50 |
ENTER; SAVETMPS; |
488 |
|
|
PUSHMARK (SP); |
489 |
root |
1.6 |
// we re-bless the reference to get overload and other niceties right |
490 |
root |
1.11 |
XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
491 |
|
|
|
492 |
|
|
PUTBACK; |
493 |
|
|
// G_SCALAR ensures that return value is 1 |
494 |
|
|
call_sv ((SV *)GvCV (method), G_SCALAR); |
495 |
|
|
SPAGAIN; |
496 |
|
|
|
497 |
|
|
// catch this surprisingly common error |
498 |
|
|
if (SvROK (TOPs) && SvRV (TOPs) == sv) |
499 |
|
|
croak ("%s::TO_CBOR method returned same object as was passed instead of a new one", HvNAME (stash)); |
500 |
|
|
|
501 |
|
|
encode_sv (enc, POPs); |
502 |
|
|
|
503 |
|
|
PUTBACK; |
504 |
|
|
|
505 |
|
|
FREETMPS; LEAVE; |
506 |
|
|
} |
507 |
|
|
else if ((method = gv_fetchmethod_autoload (stash, "FREEZE", 0)) != 0) |
508 |
|
|
{ |
509 |
|
|
dSP; |
510 |
root |
1.6 |
|
511 |
root |
1.50 |
ENTER; SAVETMPS; |
512 |
|
|
SAVESTACK_POS (); |
513 |
|
|
PUSHMARK (SP); |
514 |
root |
1.11 |
EXTEND (SP, 2); |
515 |
|
|
// we re-bless the reference to get overload and other niceties right |
516 |
|
|
PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
517 |
|
|
PUSHs (sv_cbor); |
518 |
root |
1.1 |
|
519 |
root |
1.11 |
PUTBACK; |
520 |
|
|
int count = call_sv ((SV *)GvCV (method), G_ARRAY); |
521 |
|
|
SPAGAIN; |
522 |
root |
1.6 |
|
523 |
root |
1.11 |
// catch this surprisingly common error |
524 |
|
|
if (count == 1 && SvROK (TOPs) && SvRV (TOPs) == sv) |
525 |
|
|
croak ("%s::FREEZE(CBOR) method returned same object as was passed instead of a new one", HvNAME (stash)); |
526 |
root |
1.6 |
|
527 |
root |
1.18 |
encode_tag (enc, CBOR_TAG_PERL_OBJECT); |
528 |
root |
1.35 |
encode_uint (enc, MAJOR_ARRAY, count + 1); |
529 |
root |
1.53 |
encode_strref (enc, 0, HvNAMEUTF8 (stash), HvNAME (stash), HvNAMELEN (stash)); |
530 |
root |
1.6 |
|
531 |
root |
1.11 |
while (count) |
532 |
|
|
encode_sv (enc, SP[1 - count--]); |
533 |
root |
1.6 |
|
534 |
root |
1.11 |
PUTBACK; |
535 |
root |
1.6 |
|
536 |
root |
1.11 |
FREETMPS; LEAVE; |
537 |
root |
1.1 |
} |
538 |
root |
1.11 |
else |
539 |
|
|
croak ("encountered object '%s', but no TO_CBOR or FREEZE methods available on it", |
540 |
|
|
SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
541 |
root |
1.1 |
} |
542 |
|
|
else if (svt == SVt_PVHV) |
543 |
|
|
encode_hv (enc, (HV *)sv); |
544 |
|
|
else if (svt == SVt_PVAV) |
545 |
|
|
encode_av (enc, (AV *)sv); |
546 |
root |
1.18 |
else |
547 |
root |
1.1 |
{ |
548 |
root |
1.18 |
encode_tag (enc, CBOR_TAG_INDIRECTION); |
549 |
|
|
encode_sv (enc, sv); |
550 |
root |
1.1 |
} |
551 |
|
|
} |
552 |
|
|
|
553 |
|
|
static void |
554 |
|
|
encode_nv (enc_t *enc, SV *sv) |
555 |
|
|
{ |
556 |
|
|
double nv = SvNVX (sv); |
557 |
|
|
|
558 |
|
|
need (enc, 9); |
559 |
|
|
|
560 |
root |
1.35 |
if (ecb_expect_false (nv == (NV)(U32)nv)) |
561 |
|
|
encode_uint (enc, MAJOR_POS_INT, (U32)nv); |
562 |
root |
1.1 |
//TODO: maybe I32? |
563 |
root |
1.5 |
else if (ecb_expect_false (nv == (float)nv)) |
564 |
root |
1.1 |
{ |
565 |
|
|
uint32_t fp = ecb_float_to_binary32 (nv); |
566 |
|
|
|
567 |
root |
1.35 |
*enc->cur++ = MAJOR_MISC | MISC_FLOAT32; |
568 |
root |
1.1 |
|
569 |
|
|
if (!ecb_big_endian ()) |
570 |
|
|
fp = ecb_bswap32 (fp); |
571 |
|
|
|
572 |
|
|
memcpy (enc->cur, &fp, 4); |
573 |
|
|
enc->cur += 4; |
574 |
|
|
} |
575 |
|
|
else |
576 |
|
|
{ |
577 |
|
|
uint64_t fp = ecb_double_to_binary64 (nv); |
578 |
|
|
|
579 |
root |
1.35 |
*enc->cur++ = MAJOR_MISC | MISC_FLOAT64; |
580 |
root |
1.1 |
|
581 |
|
|
if (!ecb_big_endian ()) |
582 |
|
|
fp = ecb_bswap64 (fp); |
583 |
|
|
|
584 |
|
|
memcpy (enc->cur, &fp, 8); |
585 |
|
|
enc->cur += 8; |
586 |
|
|
} |
587 |
|
|
} |
588 |
|
|
|
589 |
|
|
static void |
590 |
|
|
encode_sv (enc_t *enc, SV *sv) |
591 |
|
|
{ |
592 |
|
|
SvGETMAGIC (sv); |
593 |
|
|
|
594 |
|
|
if (SvPOKp (sv)) |
595 |
|
|
{ |
596 |
|
|
STRLEN len; |
597 |
|
|
char *str = SvPV (sv, len); |
598 |
root |
1.54 |
encode_strref (enc, enc->cbor.flags & F_TEXT_STRINGS, SvUTF8 (sv), str, len); |
599 |
root |
1.1 |
} |
600 |
|
|
else if (SvNOKp (sv)) |
601 |
|
|
encode_nv (enc, sv); |
602 |
|
|
else if (SvIOKp (sv)) |
603 |
|
|
{ |
604 |
|
|
if (SvIsUV (sv)) |
605 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvUVX (sv)); |
606 |
root |
1.1 |
else if (SvIVX (sv) >= 0) |
607 |
root |
1.35 |
encode_uint (enc, MAJOR_POS_INT, SvIVX (sv)); |
608 |
root |
1.1 |
else |
609 |
root |
1.35 |
encode_uint (enc, MAJOR_NEG_INT, -(SvIVX (sv) + 1)); |
610 |
root |
1.1 |
} |
611 |
|
|
else if (SvROK (sv)) |
612 |
|
|
encode_rv (enc, SvRV (sv)); |
613 |
|
|
else if (!SvOK (sv)) |
614 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | SIMPLE_NULL); |
615 |
root |
1.1 |
else if (enc->cbor.flags & F_ALLOW_UNKNOWN) |
616 |
root |
1.35 |
encode_ch (enc, MAJOR_MISC | SIMPLE_UNDEF); |
617 |
root |
1.1 |
else |
618 |
|
|
croak ("encountered perl type (%s,0x%x) that CBOR cannot handle, check your input data", |
619 |
|
|
SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
620 |
|
|
} |
621 |
|
|
|
622 |
|
|
static SV * |
623 |
|
|
encode_cbor (SV *scalar, CBOR *cbor) |
624 |
|
|
{ |
625 |
root |
1.48 |
enc_t enc = { 0 }; |
626 |
root |
1.1 |
|
627 |
|
|
enc.cbor = *cbor; |
628 |
|
|
enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
629 |
|
|
enc.cur = SvPVX (enc.sv); |
630 |
|
|
enc.end = SvEND (enc.sv); |
631 |
|
|
|
632 |
|
|
SvPOK_only (enc.sv); |
633 |
root |
1.20 |
|
634 |
root |
1.32 |
if (cbor->flags & F_PACK_STRINGS) |
635 |
root |
1.20 |
{ |
636 |
|
|
encode_tag (&enc, CBOR_TAG_STRINGREF_NAMESPACE); |
637 |
|
|
enc.stringref[0]= (HV *)sv_2mortal ((SV *)newHV ()); |
638 |
|
|
enc.stringref[1]= (HV *)sv_2mortal ((SV *)newHV ()); |
639 |
|
|
} |
640 |
|
|
|
641 |
root |
1.1 |
encode_sv (&enc, scalar); |
642 |
|
|
|
643 |
|
|
SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
644 |
|
|
*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
645 |
|
|
|
646 |
|
|
if (enc.cbor.flags & F_SHRINK) |
647 |
|
|
shrink (enc.sv); |
648 |
|
|
|
649 |
|
|
return enc.sv; |
650 |
|
|
} |
651 |
|
|
|
652 |
|
|
///////////////////////////////////////////////////////////////////////////// |
653 |
|
|
// decoder |
654 |
|
|
|
655 |
|
|
// structure used for decoding CBOR |
656 |
|
|
typedef struct |
657 |
|
|
{ |
658 |
|
|
U8 *cur; // current parser pointer |
659 |
|
|
U8 *end; // end of input string |
660 |
|
|
const char *err; // parse error, if != 0 |
661 |
|
|
CBOR cbor; |
662 |
|
|
U32 depth; // recursion depth |
663 |
|
|
U32 maxdepth; // recursion depth limit |
664 |
root |
1.19 |
AV *shareable; |
665 |
root |
1.20 |
AV *stringref; |
666 |
root |
1.27 |
SV *decode_tagged; |
667 |
root |
1.59 |
SV *err_sv; // optional sv for error, needs to be freed |
668 |
root |
1.1 |
} dec_t; |
669 |
|
|
|
670 |
root |
1.59 |
// set dec->err to ERRSV |
671 |
|
|
ecb_cold static void |
672 |
|
|
err_errsv (dec_t *dec) |
673 |
|
|
{ |
674 |
|
|
if (!dec->err) |
675 |
|
|
{ |
676 |
|
|
dec->err_sv = newSVsv (ERRSV); |
677 |
|
|
|
678 |
|
|
// chop off the trailing \n |
679 |
|
|
SvCUR_set (dec->err_sv, SvCUR (dec->err_sv) - 1); |
680 |
|
|
*SvEND (dec->err_sv) = 0; |
681 |
|
|
|
682 |
|
|
dec->err = SvPVutf8_nolen (dec->err_sv); |
683 |
|
|
} |
684 |
|
|
} |
685 |
root |
1.1 |
|
686 |
root |
1.59 |
// the following functions are used to reduce code size and help the compiler to optimise |
687 |
|
|
ecb_cold static void |
688 |
|
|
err_set (dec_t *dec, const char *reason) |
689 |
|
|
{ |
690 |
|
|
if (!dec->err) |
691 |
|
|
dec->err = reason; |
692 |
|
|
} |
693 |
|
|
|
694 |
|
|
ecb_cold static void |
695 |
|
|
err_unexpected_end (dec_t *dec) |
696 |
|
|
{ |
697 |
|
|
err_set (dec, "unexpected end of CBOR data"); |
698 |
|
|
} |
699 |
|
|
|
700 |
|
|
ecb_cold static void |
701 |
|
|
err_nesting_exceeded (dec_t *dec) |
702 |
|
|
{ |
703 |
|
|
err_set (dec, ERR_NESTING_EXCEEDED); |
704 |
|
|
} |
705 |
|
|
|
706 |
|
|
#define ERR_DO(do) SB do; goto fail; SE |
707 |
|
|
#define ERR(reason) ERR_DO (err_set (dec, reason)) |
708 |
|
|
#define ERR_ERRSV ERR_DO (err_errsv (dec)) |
709 |
|
|
|
710 |
root |
1.61 |
#define WANT(len) if (ecb_expect_false ((uintptr_t)(dec->end - dec->cur) < (STRLEN)len)) ERR_DO (err_unexpected_end (dec)) |
711 |
root |
1.1 |
|
712 |
root |
1.56 |
#define DEC_INC_DEPTH if (ecb_expect_false (++dec->depth > dec->cbor.max_depth)) ERR (ERR_NESTING_EXCEEDED) |
713 |
root |
1.1 |
#define DEC_DEC_DEPTH --dec->depth |
714 |
|
|
|
715 |
|
|
static UV |
716 |
|
|
decode_uint (dec_t *dec) |
717 |
|
|
{ |
718 |
root |
1.35 |
U8 m = *dec->cur & MINOR_MASK; |
719 |
|
|
++dec->cur; |
720 |
|
|
|
721 |
|
|
if (ecb_expect_true (m < LENGTH_EXT1)) |
722 |
|
|
return m; |
723 |
root |
1.36 |
else if (ecb_expect_true (m == LENGTH_EXT1)) |
724 |
|
|
{ |
725 |
|
|
WANT (1); |
726 |
|
|
dec->cur += 1; |
727 |
|
|
return dec->cur[-1]; |
728 |
|
|
} |
729 |
|
|
else if (ecb_expect_true (m == LENGTH_EXT2)) |
730 |
|
|
{ |
731 |
|
|
WANT (2); |
732 |
|
|
dec->cur += 2; |
733 |
|
|
return (((UV)dec->cur[-2]) << 8) |
734 |
|
|
| ((UV)dec->cur[-1]); |
735 |
|
|
} |
736 |
|
|
else if (ecb_expect_true (m == LENGTH_EXT4)) |
737 |
|
|
{ |
738 |
|
|
WANT (4); |
739 |
|
|
dec->cur += 4; |
740 |
|
|
return (((UV)dec->cur[-4]) << 24) |
741 |
|
|
| (((UV)dec->cur[-3]) << 16) |
742 |
|
|
| (((UV)dec->cur[-2]) << 8) |
743 |
|
|
| ((UV)dec->cur[-1]); |
744 |
|
|
} |
745 |
|
|
else if (ecb_expect_true (m == LENGTH_EXT8)) |
746 |
root |
1.1 |
{ |
747 |
root |
1.36 |
WANT (8); |
748 |
|
|
dec->cur += 8; |
749 |
root |
1.34 |
|
750 |
root |
1.36 |
return |
751 |
root |
1.34 |
#if UVSIZE < 8 |
752 |
root |
1.36 |
0 |
753 |
root |
1.34 |
#else |
754 |
root |
1.36 |
(((UV)dec->cur[-8]) << 56) |
755 |
|
|
| (((UV)dec->cur[-7]) << 48) |
756 |
|
|
| (((UV)dec->cur[-6]) << 40) |
757 |
|
|
| (((UV)dec->cur[-5]) << 32) |
758 |
root |
1.34 |
#endif |
759 |
root |
1.36 |
| (((UV)dec->cur[-4]) << 24) |
760 |
|
|
| (((UV)dec->cur[-3]) << 16) |
761 |
|
|
| (((UV)dec->cur[-2]) << 8) |
762 |
|
|
| ((UV)dec->cur[-1]); |
763 |
root |
1.1 |
} |
764 |
root |
1.36 |
else |
765 |
|
|
ERR ("corrupted CBOR data (unsupported integer minor encoding)"); |
766 |
root |
1.1 |
|
767 |
|
|
fail: |
768 |
|
|
return 0; |
769 |
|
|
} |
770 |
|
|
|
771 |
|
|
static SV *decode_sv (dec_t *dec); |
772 |
|
|
|
773 |
|
|
static SV * |
774 |
|
|
decode_av (dec_t *dec) |
775 |
|
|
{ |
776 |
|
|
AV *av = newAV (); |
777 |
|
|
|
778 |
|
|
DEC_INC_DEPTH; |
779 |
|
|
|
780 |
root |
1.35 |
if (*dec->cur == (MAJOR_ARRAY | MINOR_INDEF)) |
781 |
root |
1.1 |
{ |
782 |
|
|
++dec->cur; |
783 |
|
|
|
784 |
|
|
for (;;) |
785 |
|
|
{ |
786 |
|
|
WANT (1); |
787 |
|
|
|
788 |
root |
1.35 |
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
789 |
root |
1.1 |
{ |
790 |
|
|
++dec->cur; |
791 |
|
|
break; |
792 |
|
|
} |
793 |
|
|
|
794 |
|
|
av_push (av, decode_sv (dec)); |
795 |
|
|
} |
796 |
|
|
} |
797 |
|
|
else |
798 |
|
|
{ |
799 |
root |
1.57 |
UV i, len = decode_uint (dec); |
800 |
root |
1.1 |
|
801 |
root |
1.36 |
WANT (len); // complexity check for av_fill - need at least one byte per value, do not allow supersize arrays |
802 |
root |
1.1 |
av_fill (av, len - 1); |
803 |
|
|
|
804 |
|
|
for (i = 0; i < len; ++i) |
805 |
|
|
AvARRAY (av)[i] = decode_sv (dec); |
806 |
|
|
} |
807 |
|
|
|
808 |
|
|
DEC_DEC_DEPTH; |
809 |
|
|
return newRV_noinc ((SV *)av); |
810 |
|
|
|
811 |
|
|
fail: |
812 |
|
|
SvREFCNT_dec (av); |
813 |
|
|
DEC_DEC_DEPTH; |
814 |
|
|
return &PL_sv_undef; |
815 |
|
|
} |
816 |
|
|
|
817 |
root |
1.16 |
static void |
818 |
|
|
decode_he (dec_t *dec, HV *hv) |
819 |
|
|
{ |
820 |
|
|
// for speed reasons, we specialcase single-string |
821 |
root |
1.21 |
// byte or utf-8 strings as keys, but only when !stringref |
822 |
|
|
|
823 |
root |
1.23 |
if (ecb_expect_true (!dec->stringref)) |
824 |
root |
1.43 |
if (ecb_expect_true ((U8)(*dec->cur - MAJOR_BYTES) <= LENGTH_EXT8)) |
825 |
root |
1.21 |
{ |
826 |
root |
1.56 |
STRLEN len = decode_uint (dec); |
827 |
root |
1.21 |
char *key = (char *)dec->cur; |
828 |
root |
1.16 |
|
829 |
root |
1.49 |
WANT (len); |
830 |
root |
1.21 |
dec->cur += len; |
831 |
|
|
|
832 |
root |
1.49 |
hv_store (hv, key, len, decode_sv (dec), 0); |
833 |
root |
1.16 |
|
834 |
root |
1.21 |
return; |
835 |
|
|
} |
836 |
root |
1.43 |
else if (ecb_expect_true ((U8)(*dec->cur - MAJOR_TEXT) <= LENGTH_EXT8)) |
837 |
root |
1.21 |
{ |
838 |
root |
1.56 |
STRLEN len = decode_uint (dec); |
839 |
root |
1.21 |
char *key = (char *)dec->cur; |
840 |
root |
1.16 |
|
841 |
root |
1.49 |
WANT (len); |
842 |
root |
1.21 |
dec->cur += len; |
843 |
root |
1.20 |
|
844 |
root |
1.38 |
if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
845 |
|
|
if (!is_utf8_string (key, len)) |
846 |
|
|
ERR ("corrupted CBOR data (invalid UTF-8 in map key)"); |
847 |
root |
1.16 |
|
848 |
root |
1.21 |
hv_store (hv, key, -len, decode_sv (dec), 0); |
849 |
root |
1.16 |
|
850 |
root |
1.21 |
return; |
851 |
|
|
} |
852 |
root |
1.20 |
|
853 |
root |
1.21 |
SV *k = decode_sv (dec); |
854 |
|
|
SV *v = decode_sv (dec); |
855 |
root |
1.16 |
|
856 |
root |
1.59 |
// we leak memory if uncaught exceptions are thrown by random magical |
857 |
|
|
// methods, and this is hopefully the only place where it can happen, |
858 |
|
|
// so if there is a chance of an exception, take the very slow path. |
859 |
|
|
// since catching exceptions is "undocumented/internal/forbidden" by |
860 |
|
|
// the new p5p powers, we need to call out to a perl function :/ |
861 |
|
|
if (ecb_expect_false (SvAMAGIC (k))) |
862 |
|
|
{ |
863 |
|
|
dSP; |
864 |
|
|
|
865 |
|
|
ENTER; SAVETMPS; |
866 |
|
|
PUSHMARK (SP); |
867 |
|
|
EXTEND (SP, 3); |
868 |
|
|
PUSHs (sv_2mortal (newRV_inc ((SV *)hv))); |
869 |
|
|
PUSHs (sv_2mortal (k)); |
870 |
|
|
PUSHs (sv_2mortal (v)); |
871 |
|
|
|
872 |
|
|
PUTBACK; |
873 |
|
|
call_pv ("CBOR::XS::_hv_store", G_VOID | G_DISCARD | G_EVAL); |
874 |
|
|
SPAGAIN; |
875 |
|
|
|
876 |
|
|
FREETMPS; LEAVE; |
877 |
|
|
|
878 |
|
|
if (SvTRUE (ERRSV)) |
879 |
|
|
ERR_ERRSV; |
880 |
|
|
|
881 |
|
|
return; |
882 |
|
|
} |
883 |
|
|
|
884 |
root |
1.21 |
hv_store_ent (hv, k, v, 0); |
885 |
|
|
SvREFCNT_dec (k); |
886 |
root |
1.38 |
|
887 |
|
|
fail: |
888 |
|
|
; |
889 |
root |
1.16 |
} |
890 |
|
|
|
891 |
root |
1.1 |
static SV * |
892 |
|
|
decode_hv (dec_t *dec) |
893 |
|
|
{ |
894 |
|
|
HV *hv = newHV (); |
895 |
|
|
|
896 |
|
|
DEC_INC_DEPTH; |
897 |
|
|
|
898 |
root |
1.35 |
if (*dec->cur == (MAJOR_MAP | MINOR_INDEF)) |
899 |
root |
1.1 |
{ |
900 |
|
|
++dec->cur; |
901 |
|
|
|
902 |
|
|
for (;;) |
903 |
|
|
{ |
904 |
|
|
WANT (1); |
905 |
|
|
|
906 |
root |
1.35 |
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
907 |
root |
1.1 |
{ |
908 |
|
|
++dec->cur; |
909 |
|
|
break; |
910 |
|
|
} |
911 |
|
|
|
912 |
root |
1.16 |
decode_he (dec, hv); |
913 |
root |
1.1 |
} |
914 |
|
|
} |
915 |
|
|
else |
916 |
|
|
{ |
917 |
root |
1.57 |
UV pairs = decode_uint (dec); |
918 |
|
|
|
919 |
|
|
WANT (pairs); // complexity check - need at least one byte per value, do not allow supersize hashes |
920 |
root |
1.1 |
|
921 |
root |
1.16 |
while (pairs--) |
922 |
|
|
decode_he (dec, hv); |
923 |
root |
1.1 |
} |
924 |
|
|
|
925 |
|
|
DEC_DEC_DEPTH; |
926 |
|
|
return newRV_noinc ((SV *)hv); |
927 |
|
|
|
928 |
|
|
fail: |
929 |
|
|
SvREFCNT_dec (hv); |
930 |
|
|
DEC_DEC_DEPTH; |
931 |
|
|
return &PL_sv_undef; |
932 |
|
|
} |
933 |
|
|
|
934 |
|
|
static SV * |
935 |
|
|
decode_str (dec_t *dec, int utf8) |
936 |
|
|
{ |
937 |
root |
1.6 |
SV *sv = 0; |
938 |
root |
1.1 |
|
939 |
root |
1.35 |
if ((*dec->cur & MINOR_MASK) == MINOR_INDEF) |
940 |
root |
1.1 |
{ |
941 |
root |
1.33 |
// indefinite length strings |
942 |
root |
1.1 |
++dec->cur; |
943 |
|
|
|
944 |
root |
1.35 |
U8 major = *dec->cur & MAJOR_MISC; |
945 |
root |
1.33 |
|
946 |
root |
1.1 |
sv = newSVpvn ("", 0); |
947 |
|
|
|
948 |
|
|
for (;;) |
949 |
|
|
{ |
950 |
|
|
WANT (1); |
951 |
|
|
|
952 |
root |
1.35 |
if ((*dec->cur - major) > LENGTH_EXT8) |
953 |
|
|
if (*dec->cur == (MAJOR_MISC | MINOR_INDEF)) |
954 |
root |
1.33 |
{ |
955 |
|
|
++dec->cur; |
956 |
|
|
break; |
957 |
|
|
} |
958 |
|
|
else |
959 |
|
|
ERR ("corrupted CBOR data (invalid chunks in indefinite length string)"); |
960 |
|
|
|
961 |
|
|
STRLEN len = decode_uint (dec); |
962 |
root |
1.1 |
|
963 |
root |
1.33 |
WANT (len); |
964 |
|
|
sv_catpvn (sv, dec->cur, len); |
965 |
|
|
dec->cur += len; |
966 |
root |
1.1 |
} |
967 |
|
|
} |
968 |
|
|
else |
969 |
|
|
{ |
970 |
|
|
STRLEN len = decode_uint (dec); |
971 |
|
|
|
972 |
|
|
WANT (len); |
973 |
|
|
sv = newSVpvn (dec->cur, len); |
974 |
|
|
dec->cur += len; |
975 |
root |
1.25 |
|
976 |
|
|
if (ecb_expect_false (dec->stringref) |
977 |
|
|
&& SvCUR (sv) >= minimum_string_length (AvFILLp (dec->stringref) + 1)) |
978 |
|
|
av_push (dec->stringref, SvREFCNT_inc_NN (sv)); |
979 |
root |
1.1 |
} |
980 |
|
|
|
981 |
|
|
if (utf8) |
982 |
root |
1.38 |
{ |
983 |
|
|
if (ecb_expect_false (dec->cbor.flags & F_VALIDATE_UTF8)) |
984 |
|
|
if (!is_utf8_string (SvPVX (sv), SvCUR (sv))) |
985 |
|
|
ERR ("corrupted CBOR data (invalid UTF-8 in text string)"); |
986 |
|
|
|
987 |
|
|
SvUTF8_on (sv); |
988 |
|
|
} |
989 |
root |
1.1 |
|
990 |
|
|
return sv; |
991 |
|
|
|
992 |
|
|
fail: |
993 |
root |
1.6 |
SvREFCNT_dec (sv); |
994 |
root |
1.1 |
return &PL_sv_undef; |
995 |
|
|
} |
996 |
|
|
|
997 |
|
|
static SV * |
998 |
root |
1.3 |
decode_tagged (dec_t *dec) |
999 |
|
|
{ |
1000 |
root |
1.19 |
SV *sv = 0; |
1001 |
root |
1.3 |
UV tag = decode_uint (dec); |
1002 |
root |
1.19 |
|
1003 |
|
|
WANT (1); |
1004 |
root |
1.3 |
|
1005 |
root |
1.18 |
switch (tag) |
1006 |
|
|
{ |
1007 |
|
|
case CBOR_TAG_MAGIC: |
1008 |
root |
1.20 |
sv = decode_sv (dec); |
1009 |
|
|
break; |
1010 |
root |
1.18 |
|
1011 |
|
|
case CBOR_TAG_INDIRECTION: |
1012 |
root |
1.20 |
sv = newRV_noinc (decode_sv (dec)); |
1013 |
|
|
break; |
1014 |
|
|
|
1015 |
|
|
case CBOR_TAG_STRINGREF_NAMESPACE: |
1016 |
|
|
{ |
1017 |
root |
1.55 |
// do nmot use SAVETMPS/FREETMPS, as these will |
1018 |
|
|
// erase mortalised caches, e.g. "shareable" |
1019 |
|
|
ENTER; |
1020 |
root |
1.20 |
|
1021 |
|
|
SAVESPTR (dec->stringref); |
1022 |
|
|
dec->stringref = (AV *)sv_2mortal ((SV *)newAV ()); |
1023 |
|
|
|
1024 |
|
|
sv = decode_sv (dec); |
1025 |
|
|
|
1026 |
root |
1.55 |
LEAVE; |
1027 |
root |
1.20 |
} |
1028 |
|
|
break; |
1029 |
|
|
|
1030 |
|
|
case CBOR_TAG_STRINGREF: |
1031 |
|
|
{ |
1032 |
root |
1.35 |
if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
1033 |
root |
1.20 |
ERR ("corrupted CBOR data (stringref index not an unsigned integer)"); |
1034 |
|
|
|
1035 |
|
|
UV idx = decode_uint (dec); |
1036 |
|
|
|
1037 |
|
|
if (!dec->stringref || (int)idx > AvFILLp (dec->stringref)) |
1038 |
|
|
ERR ("corrupted CBOR data (stringref index out of bounds or outside namespace)"); |
1039 |
|
|
|
1040 |
|
|
sv = newSVsv (AvARRAY (dec->stringref)[idx]); |
1041 |
|
|
} |
1042 |
|
|
break; |
1043 |
root |
1.11 |
|
1044 |
root |
1.19 |
case CBOR_TAG_VALUE_SHAREABLE: |
1045 |
|
|
{ |
1046 |
|
|
if (ecb_expect_false (!dec->shareable)) |
1047 |
|
|
dec->shareable = (AV *)sv_2mortal ((SV *)newAV ()); |
1048 |
|
|
|
1049 |
root |
1.37 |
if (dec->cbor.flags & F_ALLOW_CYCLES) |
1050 |
|
|
{ |
1051 |
|
|
sv = newSV (0); |
1052 |
|
|
av_push (dec->shareable, SvREFCNT_inc_NN (sv)); |
1053 |
root |
1.18 |
|
1054 |
root |
1.37 |
SV *osv = decode_sv (dec); |
1055 |
|
|
sv_setsv (sv, osv); |
1056 |
|
|
SvREFCNT_dec_NN (osv); |
1057 |
|
|
} |
1058 |
|
|
else |
1059 |
|
|
{ |
1060 |
|
|
av_push (dec->shareable, &PL_sv_undef); |
1061 |
|
|
int idx = AvFILLp (dec->shareable); |
1062 |
|
|
sv = decode_sv (dec); |
1063 |
|
|
av_store (dec->shareable, idx, SvREFCNT_inc_NN (sv)); |
1064 |
|
|
} |
1065 |
root |
1.19 |
} |
1066 |
root |
1.20 |
break; |
1067 |
root |
1.18 |
|
1068 |
|
|
case CBOR_TAG_VALUE_SHAREDREF: |
1069 |
root |
1.17 |
{ |
1070 |
root |
1.35 |
if ((*dec->cur >> MAJOR_SHIFT) != (MAJOR_POS_INT >> MAJOR_SHIFT)) |
1071 |
root |
1.19 |
ERR ("corrupted CBOR data (sharedref index not an unsigned integer)"); |
1072 |
root |
1.18 |
|
1073 |
root |
1.19 |
UV idx = decode_uint (dec); |
1074 |
|
|
|
1075 |
root |
1.20 |
if (!dec->shareable || (int)idx > AvFILLp (dec->shareable)) |
1076 |
root |
1.18 |
ERR ("corrupted CBOR data (sharedref index out of bounds)"); |
1077 |
|
|
|
1078 |
root |
1.20 |
sv = SvREFCNT_inc_NN (AvARRAY (dec->shareable)[idx]); |
1079 |
root |
1.37 |
|
1080 |
|
|
if (sv == &PL_sv_undef) |
1081 |
|
|
ERR ("cyclic CBOR data structure found, but allow_cycles is not enabled"); |
1082 |
root |
1.17 |
} |
1083 |
root |
1.20 |
break; |
1084 |
root |
1.17 |
|
1085 |
root |
1.18 |
case CBOR_TAG_PERL_OBJECT: |
1086 |
|
|
{ |
1087 |
root |
1.60 |
if (dec->cbor.flags & F_FORBID_OBJECTS) |
1088 |
|
|
goto filter; |
1089 |
|
|
|
1090 |
root |
1.19 |
sv = decode_sv (dec); |
1091 |
|
|
|
1092 |
root |
1.18 |
if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
1093 |
|
|
ERR ("corrupted CBOR data (non-array perl object)"); |
1094 |
|
|
|
1095 |
|
|
AV *av = (AV *)SvRV (sv); |
1096 |
|
|
int len = av_len (av) + 1; |
1097 |
|
|
HV *stash = gv_stashsv (*av_fetch (av, 0, 1), 0); |
1098 |
|
|
|
1099 |
|
|
if (!stash) |
1100 |
|
|
ERR ("cannot decode perl-object (package does not exist)"); |
1101 |
|
|
|
1102 |
|
|
GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
1103 |
|
|
|
1104 |
|
|
if (!method) |
1105 |
|
|
ERR ("cannot decode perl-object (package does not have a THAW method)"); |
1106 |
|
|
|
1107 |
|
|
dSP; |
1108 |
|
|
|
1109 |
root |
1.50 |
ENTER; SAVETMPS; |
1110 |
|
|
PUSHMARK (SP); |
1111 |
root |
1.18 |
EXTEND (SP, len + 1); |
1112 |
|
|
// we re-bless the reference to get overload and other niceties right |
1113 |
|
|
PUSHs (*av_fetch (av, 0, 1)); |
1114 |
|
|
PUSHs (sv_cbor); |
1115 |
|
|
|
1116 |
|
|
int i; |
1117 |
|
|
|
1118 |
|
|
for (i = 1; i < len; ++i) |
1119 |
|
|
PUSHs (*av_fetch (av, i, 1)); |
1120 |
|
|
|
1121 |
|
|
PUTBACK; |
1122 |
|
|
call_sv ((SV *)GvCV (method), G_SCALAR | G_EVAL); |
1123 |
|
|
SPAGAIN; |
1124 |
|
|
|
1125 |
|
|
if (SvTRUE (ERRSV)) |
1126 |
|
|
{ |
1127 |
|
|
FREETMPS; LEAVE; |
1128 |
root |
1.59 |
ERR_ERRSV; |
1129 |
root |
1.18 |
} |
1130 |
|
|
|
1131 |
|
|
SvREFCNT_dec (sv); |
1132 |
|
|
sv = SvREFCNT_inc (POPs); |
1133 |
root |
1.11 |
|
1134 |
root |
1.18 |
PUTBACK; |
1135 |
root |
1.11 |
|
1136 |
root |
1.18 |
FREETMPS; LEAVE; |
1137 |
|
|
} |
1138 |
root |
1.20 |
break; |
1139 |
root |
1.9 |
|
1140 |
root |
1.18 |
default: |
1141 |
root |
1.60 |
filter: |
1142 |
root |
1.18 |
{ |
1143 |
root |
1.58 |
SV *tag_sv = newSVuv (tag); |
1144 |
|
|
|
1145 |
root |
1.19 |
sv = decode_sv (dec); |
1146 |
|
|
|
1147 |
root |
1.27 |
dSP; |
1148 |
root |
1.50 |
ENTER; SAVETMPS; |
1149 |
|
|
SAVESTACK_POS (); |
1150 |
|
|
PUSHMARK (SP); |
1151 |
root |
1.27 |
EXTEND (SP, 2); |
1152 |
root |
1.58 |
PUSHs (tag_sv); |
1153 |
root |
1.27 |
PUSHs (sv); |
1154 |
|
|
|
1155 |
|
|
PUTBACK; |
1156 |
|
|
int count = call_sv (dec->cbor.filter ? dec->cbor.filter : default_filter, G_ARRAY | G_EVAL); |
1157 |
|
|
SPAGAIN; |
1158 |
|
|
|
1159 |
|
|
if (SvTRUE (ERRSV)) |
1160 |
|
|
{ |
1161 |
root |
1.58 |
SvREFCNT_dec (tag_sv); |
1162 |
root |
1.27 |
FREETMPS; LEAVE; |
1163 |
root |
1.59 |
ERR_ERRSV; |
1164 |
root |
1.27 |
} |
1165 |
|
|
|
1166 |
|
|
if (count) |
1167 |
|
|
{ |
1168 |
root |
1.58 |
SvREFCNT_dec (tag_sv); |
1169 |
root |
1.27 |
SvREFCNT_dec (sv); |
1170 |
|
|
sv = SvREFCNT_inc (POPs); |
1171 |
|
|
} |
1172 |
|
|
else |
1173 |
|
|
{ |
1174 |
|
|
AV *av = newAV (); |
1175 |
root |
1.58 |
av_push (av, tag_sv); |
1176 |
root |
1.27 |
av_push (av, sv); |
1177 |
|
|
|
1178 |
|
|
HV *tagged_stash = !CBOR_SLOW || cbor_tagged_stash |
1179 |
|
|
? cbor_tagged_stash |
1180 |
|
|
: gv_stashpv ("CBOR::XS::Tagged" , 1); |
1181 |
|
|
sv = sv_bless (newRV_noinc ((SV *)av), tagged_stash); |
1182 |
|
|
} |
1183 |
root |
1.7 |
|
1184 |
root |
1.27 |
PUTBACK; |
1185 |
|
|
|
1186 |
|
|
FREETMPS; LEAVE; |
1187 |
root |
1.18 |
} |
1188 |
root |
1.20 |
break; |
1189 |
root |
1.11 |
} |
1190 |
root |
1.9 |
|
1191 |
root |
1.20 |
return sv; |
1192 |
|
|
|
1193 |
root |
1.9 |
fail: |
1194 |
|
|
SvREFCNT_dec (sv); |
1195 |
|
|
return &PL_sv_undef; |
1196 |
root |
1.3 |
} |
1197 |
|
|
|
1198 |
|
|
static SV * |
1199 |
root |
1.1 |
decode_sv (dec_t *dec) |
1200 |
|
|
{ |
1201 |
|
|
WANT (1); |
1202 |
|
|
|
1203 |
root |
1.35 |
switch (*dec->cur >> MAJOR_SHIFT) |
1204 |
root |
1.1 |
{ |
1205 |
root |
1.35 |
case MAJOR_POS_INT >> MAJOR_SHIFT: return newSVuv (decode_uint (dec)); |
1206 |
|
|
case MAJOR_NEG_INT >> MAJOR_SHIFT: return newSViv (-1 - (IV)decode_uint (dec)); |
1207 |
|
|
case MAJOR_BYTES >> MAJOR_SHIFT: return decode_str (dec, 0); |
1208 |
|
|
case MAJOR_TEXT >> MAJOR_SHIFT: return decode_str (dec, 1); |
1209 |
|
|
case MAJOR_ARRAY >> MAJOR_SHIFT: return decode_av (dec); |
1210 |
|
|
case MAJOR_MAP >> MAJOR_SHIFT: return decode_hv (dec); |
1211 |
|
|
case MAJOR_TAG >> MAJOR_SHIFT: return decode_tagged (dec); |
1212 |
|
|
|
1213 |
|
|
case MAJOR_MISC >> MAJOR_SHIFT: |
1214 |
|
|
switch (*dec->cur++ & MINOR_MASK) |
1215 |
root |
1.1 |
{ |
1216 |
root |
1.35 |
case SIMPLE_FALSE: |
1217 |
root |
1.1 |
#if CBOR_SLOW |
1218 |
root |
1.10 |
types_false = get_bool ("Types::Serialiser::false"); |
1219 |
root |
1.1 |
#endif |
1220 |
root |
1.10 |
return newSVsv (types_false); |
1221 |
root |
1.35 |
case SIMPLE_TRUE: |
1222 |
root |
1.1 |
#if CBOR_SLOW |
1223 |
root |
1.10 |
types_true = get_bool ("Types::Serialiser::true"); |
1224 |
root |
1.1 |
#endif |
1225 |
root |
1.10 |
return newSVsv (types_true); |
1226 |
root |
1.35 |
case SIMPLE_NULL: |
1227 |
root |
1.1 |
return newSVsv (&PL_sv_undef); |
1228 |
root |
1.35 |
case SIMPLE_UNDEF: |
1229 |
root |
1.10 |
#if CBOR_SLOW |
1230 |
|
|
types_error = get_bool ("Types::Serialiser::error"); |
1231 |
|
|
#endif |
1232 |
|
|
return newSVsv (types_error); |
1233 |
root |
1.1 |
|
1234 |
root |
1.35 |
case MISC_FLOAT16: |
1235 |
root |
1.2 |
{ |
1236 |
|
|
WANT (2); |
1237 |
|
|
|
1238 |
|
|
uint16_t fp = (dec->cur[0] << 8) | dec->cur[1]; |
1239 |
|
|
dec->cur += 2; |
1240 |
|
|
|
1241 |
|
|
return newSVnv (ecb_binary16_to_float (fp)); |
1242 |
|
|
} |
1243 |
root |
1.1 |
|
1244 |
root |
1.35 |
case MISC_FLOAT32: |
1245 |
root |
1.1 |
{ |
1246 |
|
|
uint32_t fp; |
1247 |
|
|
WANT (4); |
1248 |
|
|
memcpy (&fp, dec->cur, 4); |
1249 |
|
|
dec->cur += 4; |
1250 |
|
|
|
1251 |
|
|
if (!ecb_big_endian ()) |
1252 |
|
|
fp = ecb_bswap32 (fp); |
1253 |
|
|
|
1254 |
|
|
return newSVnv (ecb_binary32_to_float (fp)); |
1255 |
|
|
} |
1256 |
|
|
|
1257 |
root |
1.35 |
case MISC_FLOAT64: |
1258 |
root |
1.1 |
{ |
1259 |
|
|
uint64_t fp; |
1260 |
|
|
WANT (8); |
1261 |
|
|
memcpy (&fp, dec->cur, 8); |
1262 |
|
|
dec->cur += 8; |
1263 |
|
|
|
1264 |
|
|
if (!ecb_big_endian ()) |
1265 |
|
|
fp = ecb_bswap64 (fp); |
1266 |
|
|
|
1267 |
|
|
return newSVnv (ecb_binary64_to_double (fp)); |
1268 |
|
|
} |
1269 |
|
|
|
1270 |
root |
1.35 |
// 0..19 unassigned simple |
1271 |
root |
1.40 |
// 24 reserved + unassigned simple (reserved values are not encodable) |
1272 |
|
|
// 28-30 unassigned misc |
1273 |
|
|
// 31 break code |
1274 |
root |
1.1 |
default: |
1275 |
root |
1.40 |
ERR ("corrupted CBOR data (reserved/unassigned/unexpected major 7 value)"); |
1276 |
root |
1.1 |
} |
1277 |
|
|
|
1278 |
|
|
break; |
1279 |
|
|
} |
1280 |
|
|
|
1281 |
|
|
fail: |
1282 |
|
|
return &PL_sv_undef; |
1283 |
|
|
} |
1284 |
|
|
|
1285 |
|
|
static SV * |
1286 |
|
|
decode_cbor (SV *string, CBOR *cbor, char **offset_return) |
1287 |
|
|
{ |
1288 |
root |
1.48 |
dec_t dec = { 0 }; |
1289 |
root |
1.1 |
SV *sv; |
1290 |
root |
1.16 |
STRLEN len; |
1291 |
|
|
char *data = SvPVbyte (string, len); |
1292 |
root |
1.1 |
|
1293 |
root |
1.16 |
if (len > cbor->max_size && cbor->max_size) |
1294 |
|
|
croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1295 |
|
|
(unsigned long)len, (unsigned long)cbor->max_size); |
1296 |
root |
1.1 |
|
1297 |
|
|
dec.cbor = *cbor; |
1298 |
root |
1.16 |
dec.cur = (U8 *)data; |
1299 |
|
|
dec.end = (U8 *)data + len; |
1300 |
root |
1.1 |
|
1301 |
|
|
sv = decode_sv (&dec); |
1302 |
|
|
|
1303 |
|
|
if (offset_return) |
1304 |
|
|
*offset_return = dec.cur; |
1305 |
|
|
|
1306 |
|
|
if (!(offset_return || !sv)) |
1307 |
root |
1.2 |
if (dec.cur != dec.end && !dec.err) |
1308 |
|
|
dec.err = "garbage after CBOR object"; |
1309 |
|
|
|
1310 |
|
|
if (dec.err) |
1311 |
root |
1.1 |
{ |
1312 |
root |
1.39 |
if (dec.shareable) |
1313 |
|
|
{ |
1314 |
root |
1.58 |
// need to break cyclic links, which would all be in shareable |
1315 |
root |
1.39 |
int i; |
1316 |
|
|
SV **svp; |
1317 |
|
|
|
1318 |
|
|
for (i = av_len (dec.shareable) + 1; i--; ) |
1319 |
|
|
if ((svp = av_fetch (dec.shareable, i, 0))) |
1320 |
|
|
sv_setsv (*svp, &PL_sv_undef); |
1321 |
|
|
} |
1322 |
|
|
|
1323 |
root |
1.2 |
SvREFCNT_dec (sv); |
1324 |
root |
1.59 |
|
1325 |
|
|
if (dec.err_sv) |
1326 |
|
|
sv_2mortal (dec.err_sv); |
1327 |
|
|
|
1328 |
root |
1.16 |
croak ("%s, at offset %d (octet 0x%02x)", dec.err, dec.cur - (U8 *)data, (int)(uint8_t)*dec.cur); |
1329 |
root |
1.1 |
} |
1330 |
|
|
|
1331 |
|
|
sv = sv_2mortal (sv); |
1332 |
|
|
|
1333 |
|
|
return sv; |
1334 |
|
|
} |
1335 |
|
|
|
1336 |
|
|
///////////////////////////////////////////////////////////////////////////// |
1337 |
root |
1.40 |
// incremental parser |
1338 |
|
|
|
1339 |
|
|
#define INCR_DONE(cbor) (AvFILLp (cbor->incr_count) < 0) |
1340 |
|
|
|
1341 |
|
|
// returns 0 for notyet, 1 for success or error |
1342 |
|
|
static int |
1343 |
|
|
incr_parse (CBOR *self, SV *cborstr) |
1344 |
|
|
{ |
1345 |
|
|
STRLEN cur; |
1346 |
|
|
SvPV (cborstr, cur); |
1347 |
|
|
|
1348 |
|
|
while (ecb_expect_true (self->incr_need <= cur)) |
1349 |
|
|
{ |
1350 |
|
|
// table of integer count bytes |
1351 |
|
|
static I8 incr_len[MINOR_MASK + 1] = { |
1352 |
|
|
0, 0, 0, 0, 0, 0, 0, 0, |
1353 |
|
|
0, 0, 0, 0, 0, 0, 0, 0, |
1354 |
|
|
0, 0, 0, 0, 0, 0, 0, 0, |
1355 |
|
|
1, 2, 4, 8,-1,-1,-1,-2 |
1356 |
|
|
}; |
1357 |
|
|
|
1358 |
|
|
const U8 *p = SvPVX (cborstr) + self->incr_pos; |
1359 |
|
|
U8 m = *p & MINOR_MASK; |
1360 |
|
|
IV count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
1361 |
|
|
I8 ilen = incr_len[m]; |
1362 |
|
|
|
1363 |
|
|
self->incr_need = self->incr_pos + 1; |
1364 |
|
|
|
1365 |
|
|
if (ecb_expect_false (ilen < 0)) |
1366 |
|
|
{ |
1367 |
|
|
if (m != MINOR_INDEF) |
1368 |
|
|
return 1; // error |
1369 |
|
|
|
1370 |
|
|
if (*p == (MAJOR_MISC | MINOR_INDEF)) |
1371 |
|
|
{ |
1372 |
|
|
if (count >= 0) |
1373 |
|
|
return 1; // error |
1374 |
|
|
|
1375 |
|
|
count = 1; |
1376 |
|
|
} |
1377 |
|
|
else |
1378 |
|
|
{ |
1379 |
|
|
av_push (self->incr_count, newSViv (-1)); //TODO: nest |
1380 |
|
|
count = -1; |
1381 |
|
|
} |
1382 |
|
|
} |
1383 |
|
|
else |
1384 |
|
|
{ |
1385 |
|
|
self->incr_need += ilen; |
1386 |
|
|
if (ecb_expect_false (self->incr_need > cur)) |
1387 |
|
|
return 0; |
1388 |
|
|
|
1389 |
|
|
int major = *p >> MAJOR_SHIFT; |
1390 |
|
|
|
1391 |
|
|
switch (major) |
1392 |
|
|
{ |
1393 |
root |
1.47 |
case MAJOR_TAG >> MAJOR_SHIFT: |
1394 |
|
|
++count; // tags merely prefix another value |
1395 |
|
|
break; |
1396 |
|
|
|
1397 |
root |
1.40 |
case MAJOR_BYTES >> MAJOR_SHIFT: |
1398 |
|
|
case MAJOR_TEXT >> MAJOR_SHIFT: |
1399 |
|
|
case MAJOR_ARRAY >> MAJOR_SHIFT: |
1400 |
|
|
case MAJOR_MAP >> MAJOR_SHIFT: |
1401 |
|
|
{ |
1402 |
|
|
UV len; |
1403 |
|
|
|
1404 |
|
|
if (ecb_expect_false (ilen)) |
1405 |
|
|
{ |
1406 |
|
|
len = 0; |
1407 |
|
|
|
1408 |
|
|
do { |
1409 |
|
|
len = (len << 8) | *++p; |
1410 |
|
|
} while (--ilen); |
1411 |
|
|
} |
1412 |
|
|
else |
1413 |
|
|
len = m; |
1414 |
|
|
|
1415 |
|
|
switch (major) |
1416 |
|
|
{ |
1417 |
|
|
case MAJOR_BYTES >> MAJOR_SHIFT: |
1418 |
|
|
case MAJOR_TEXT >> MAJOR_SHIFT: |
1419 |
|
|
self->incr_need += len; |
1420 |
|
|
if (ecb_expect_false (self->incr_need > cur)) |
1421 |
|
|
return 0; |
1422 |
|
|
|
1423 |
|
|
break; |
1424 |
|
|
|
1425 |
|
|
case MAJOR_MAP >> MAJOR_SHIFT: |
1426 |
|
|
len <<= 1; |
1427 |
|
|
case MAJOR_ARRAY >> MAJOR_SHIFT: |
1428 |
|
|
if (len) |
1429 |
|
|
{ |
1430 |
|
|
av_push (self->incr_count, newSViv (len + 1)); //TODO: nest |
1431 |
|
|
count = len + 1; |
1432 |
|
|
} |
1433 |
|
|
break; |
1434 |
|
|
} |
1435 |
|
|
} |
1436 |
|
|
} |
1437 |
|
|
} |
1438 |
|
|
|
1439 |
|
|
self->incr_pos = self->incr_need; |
1440 |
|
|
|
1441 |
|
|
if (count > 0) |
1442 |
|
|
{ |
1443 |
|
|
while (!--count) |
1444 |
|
|
{ |
1445 |
|
|
if (!AvFILLp (self->incr_count)) |
1446 |
|
|
return 1; // done |
1447 |
|
|
|
1448 |
|
|
SvREFCNT_dec_NN (av_pop (self->incr_count)); |
1449 |
|
|
count = SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]); |
1450 |
|
|
} |
1451 |
|
|
|
1452 |
|
|
SvIVX (AvARRAY (self->incr_count)[AvFILLp (self->incr_count)]) = count; |
1453 |
|
|
} |
1454 |
|
|
} |
1455 |
|
|
|
1456 |
|
|
return 0; |
1457 |
|
|
} |
1458 |
|
|
|
1459 |
|
|
|
1460 |
|
|
///////////////////////////////////////////////////////////////////////////// |
1461 |
root |
1.1 |
// XS interface functions |
1462 |
|
|
|
1463 |
|
|
MODULE = CBOR::XS PACKAGE = CBOR::XS |
1464 |
|
|
|
1465 |
|
|
BOOT: |
1466 |
|
|
{ |
1467 |
|
|
cbor_stash = gv_stashpv ("CBOR::XS" , 1); |
1468 |
root |
1.6 |
cbor_tagged_stash = gv_stashpv ("CBOR::XS::Tagged" , 1); |
1469 |
root |
1.1 |
|
1470 |
root |
1.10 |
types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
1471 |
|
|
types_error_stash = gv_stashpv ("Types::Serialiser::Error" , 1); |
1472 |
|
|
|
1473 |
|
|
types_true = get_bool ("Types::Serialiser::true" ); |
1474 |
|
|
types_false = get_bool ("Types::Serialiser::false"); |
1475 |
|
|
types_error = get_bool ("Types::Serialiser::error"); |
1476 |
root |
1.11 |
|
1477 |
root |
1.27 |
default_filter = newSVpv ("CBOR::XS::default_filter", 0); |
1478 |
|
|
|
1479 |
root |
1.11 |
sv_cbor = newSVpv ("CBOR", 0); |
1480 |
|
|
SvREADONLY_on (sv_cbor); |
1481 |
root |
1.56 |
|
1482 |
|
|
assert (("STRLEN must be an unsigned type", 0 <= (STRLEN)-1)); |
1483 |
root |
1.1 |
} |
1484 |
|
|
|
1485 |
|
|
PROTOTYPES: DISABLE |
1486 |
|
|
|
1487 |
|
|
void CLONE (...) |
1488 |
|
|
CODE: |
1489 |
root |
1.10 |
cbor_stash = 0; |
1490 |
|
|
cbor_tagged_stash = 0; |
1491 |
|
|
types_error_stash = 0; |
1492 |
|
|
types_boolean_stash = 0; |
1493 |
root |
1.1 |
|
1494 |
|
|
void new (char *klass) |
1495 |
|
|
PPCODE: |
1496 |
|
|
{ |
1497 |
|
|
SV *pv = NEWSV (0, sizeof (CBOR)); |
1498 |
|
|
SvPOK_only (pv); |
1499 |
|
|
cbor_init ((CBOR *)SvPVX (pv)); |
1500 |
|
|
XPUSHs (sv_2mortal (sv_bless ( |
1501 |
|
|
newRV_noinc (pv), |
1502 |
|
|
strEQ (klass, "CBOR::XS") ? CBOR_STASH : gv_stashpv (klass, 1) |
1503 |
|
|
))); |
1504 |
|
|
} |
1505 |
|
|
|
1506 |
|
|
void shrink (CBOR *self, int enable = 1) |
1507 |
|
|
ALIAS: |
1508 |
|
|
shrink = F_SHRINK |
1509 |
|
|
allow_unknown = F_ALLOW_UNKNOWN |
1510 |
root |
1.18 |
allow_sharing = F_ALLOW_SHARING |
1511 |
root |
1.37 |
allow_cycles = F_ALLOW_CYCLES |
1512 |
root |
1.60 |
forbid_objects = F_FORBID_OBJECTS |
1513 |
root |
1.32 |
pack_strings = F_PACK_STRINGS |
1514 |
root |
1.54 |
text_keys = F_TEXT_KEYS |
1515 |
|
|
text_strings = F_TEXT_STRINGS |
1516 |
root |
1.38 |
validate_utf8 = F_VALIDATE_UTF8 |
1517 |
root |
1.1 |
PPCODE: |
1518 |
|
|
{ |
1519 |
|
|
if (enable) |
1520 |
|
|
self->flags |= ix; |
1521 |
|
|
else |
1522 |
|
|
self->flags &= ~ix; |
1523 |
|
|
|
1524 |
|
|
XPUSHs (ST (0)); |
1525 |
|
|
} |
1526 |
|
|
|
1527 |
|
|
void get_shrink (CBOR *self) |
1528 |
|
|
ALIAS: |
1529 |
|
|
get_shrink = F_SHRINK |
1530 |
|
|
get_allow_unknown = F_ALLOW_UNKNOWN |
1531 |
root |
1.18 |
get_allow_sharing = F_ALLOW_SHARING |
1532 |
root |
1.37 |
get_allow_cycles = F_ALLOW_CYCLES |
1533 |
root |
1.60 |
get_forbid_objects = F_FORBID_OBJECTS |
1534 |
root |
1.32 |
get_pack_strings = F_PACK_STRINGS |
1535 |
root |
1.54 |
get_text_keys = F_TEXT_KEYS |
1536 |
|
|
get_text_strings = F_TEXT_STRINGS |
1537 |
root |
1.38 |
get_validate_utf8 = F_VALIDATE_UTF8 |
1538 |
root |
1.1 |
PPCODE: |
1539 |
|
|
XPUSHs (boolSV (self->flags & ix)); |
1540 |
|
|
|
1541 |
|
|
void max_depth (CBOR *self, U32 max_depth = 0x80000000UL) |
1542 |
|
|
PPCODE: |
1543 |
|
|
self->max_depth = max_depth; |
1544 |
|
|
XPUSHs (ST (0)); |
1545 |
|
|
|
1546 |
|
|
U32 get_max_depth (CBOR *self) |
1547 |
|
|
CODE: |
1548 |
|
|
RETVAL = self->max_depth; |
1549 |
|
|
OUTPUT: |
1550 |
|
|
RETVAL |
1551 |
|
|
|
1552 |
|
|
void max_size (CBOR *self, U32 max_size = 0) |
1553 |
|
|
PPCODE: |
1554 |
|
|
self->max_size = max_size; |
1555 |
|
|
XPUSHs (ST (0)); |
1556 |
|
|
|
1557 |
|
|
int get_max_size (CBOR *self) |
1558 |
|
|
CODE: |
1559 |
|
|
RETVAL = self->max_size; |
1560 |
|
|
OUTPUT: |
1561 |
|
|
RETVAL |
1562 |
|
|
|
1563 |
root |
1.27 |
void filter (CBOR *self, SV *filter = 0) |
1564 |
|
|
PPCODE: |
1565 |
|
|
SvREFCNT_dec (self->filter); |
1566 |
|
|
self->filter = filter ? newSVsv (filter) : filter; |
1567 |
|
|
XPUSHs (ST (0)); |
1568 |
|
|
|
1569 |
|
|
SV *get_filter (CBOR *self) |
1570 |
|
|
CODE: |
1571 |
|
|
RETVAL = self->filter ? self->filter : NEWSV (0, 0); |
1572 |
|
|
OUTPUT: |
1573 |
|
|
RETVAL |
1574 |
|
|
|
1575 |
root |
1.1 |
void encode (CBOR *self, SV *scalar) |
1576 |
|
|
PPCODE: |
1577 |
|
|
PUTBACK; scalar = encode_cbor (scalar, self); SPAGAIN; |
1578 |
|
|
XPUSHs (scalar); |
1579 |
|
|
|
1580 |
|
|
void decode (CBOR *self, SV *cborstr) |
1581 |
|
|
PPCODE: |
1582 |
|
|
PUTBACK; cborstr = decode_cbor (cborstr, self, 0); SPAGAIN; |
1583 |
|
|
XPUSHs (cborstr); |
1584 |
|
|
|
1585 |
|
|
void decode_prefix (CBOR *self, SV *cborstr) |
1586 |
|
|
PPCODE: |
1587 |
|
|
{ |
1588 |
|
|
SV *sv; |
1589 |
|
|
char *offset; |
1590 |
|
|
PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
1591 |
|
|
EXTEND (SP, 2); |
1592 |
|
|
PUSHs (sv); |
1593 |
|
|
PUSHs (sv_2mortal (newSVuv (offset - SvPVX (cborstr)))); |
1594 |
|
|
} |
1595 |
|
|
|
1596 |
root |
1.41 |
void incr_parse (CBOR *self, SV *cborstr) |
1597 |
root |
1.42 |
ALIAS: |
1598 |
|
|
incr_parse_multiple = 1 |
1599 |
root |
1.40 |
PPCODE: |
1600 |
|
|
{ |
1601 |
|
|
if (SvUTF8 (cborstr)) |
1602 |
|
|
sv_utf8_downgrade (cborstr, 0); |
1603 |
|
|
|
1604 |
|
|
if (!self->incr_count) |
1605 |
|
|
{ |
1606 |
|
|
self->incr_count = newAV (); |
1607 |
|
|
self->incr_pos = 0; |
1608 |
|
|
self->incr_need = 1; |
1609 |
|
|
|
1610 |
|
|
av_push (self->incr_count, newSViv (1)); |
1611 |
|
|
} |
1612 |
|
|
|
1613 |
root |
1.41 |
do |
1614 |
root |
1.40 |
{ |
1615 |
|
|
if (!incr_parse (self, cborstr)) |
1616 |
|
|
{ |
1617 |
|
|
if (self->incr_need > self->max_size && self->max_size) |
1618 |
|
|
croak ("attempted decode of CBOR text of %lu bytes size, but max_size is set to %lu", |
1619 |
|
|
(unsigned long)self->incr_need, (unsigned long)self->max_size); |
1620 |
|
|
|
1621 |
|
|
break; |
1622 |
|
|
} |
1623 |
|
|
|
1624 |
root |
1.41 |
SV *sv; |
1625 |
|
|
char *offset; |
1626 |
root |
1.40 |
|
1627 |
root |
1.41 |
PUTBACK; sv = decode_cbor (cborstr, self, &offset); SPAGAIN; |
1628 |
|
|
XPUSHs (sv); |
1629 |
root |
1.40 |
|
1630 |
root |
1.41 |
sv_chop (cborstr, offset); |
1631 |
root |
1.40 |
|
1632 |
root |
1.41 |
av_clear (self->incr_count); |
1633 |
|
|
av_push (self->incr_count, newSViv (1)); |
1634 |
root |
1.40 |
|
1635 |
root |
1.41 |
self->incr_pos = 0; |
1636 |
|
|
self->incr_need = self->incr_pos + 1; |
1637 |
root |
1.40 |
} |
1638 |
root |
1.42 |
while (ix); |
1639 |
root |
1.40 |
} |
1640 |
|
|
|
1641 |
|
|
void incr_reset (CBOR *self) |
1642 |
|
|
CODE: |
1643 |
|
|
{ |
1644 |
|
|
SvREFCNT_dec (self->incr_count); |
1645 |
|
|
self->incr_count = 0; |
1646 |
|
|
} |
1647 |
|
|
|
1648 |
root |
1.27 |
void DESTROY (CBOR *self) |
1649 |
|
|
PPCODE: |
1650 |
|
|
cbor_free (self); |
1651 |
|
|
|
1652 |
root |
1.1 |
PROTOTYPES: ENABLE |
1653 |
|
|
|
1654 |
|
|
void encode_cbor (SV *scalar) |
1655 |
root |
1.36 |
ALIAS: |
1656 |
|
|
encode_cbor = 0 |
1657 |
|
|
encode_cbor_sharing = F_ALLOW_SHARING |
1658 |
root |
1.1 |
PPCODE: |
1659 |
|
|
{ |
1660 |
|
|
CBOR cbor; |
1661 |
|
|
cbor_init (&cbor); |
1662 |
root |
1.36 |
cbor.flags |= ix; |
1663 |
root |
1.1 |
PUTBACK; scalar = encode_cbor (scalar, &cbor); SPAGAIN; |
1664 |
|
|
XPUSHs (scalar); |
1665 |
|
|
} |
1666 |
|
|
|
1667 |
|
|
void decode_cbor (SV *cborstr) |
1668 |
|
|
PPCODE: |
1669 |
|
|
{ |
1670 |
|
|
CBOR cbor; |
1671 |
|
|
cbor_init (&cbor); |
1672 |
|
|
PUTBACK; cborstr = decode_cbor (cborstr, &cbor, 0); SPAGAIN; |
1673 |
|
|
XPUSHs (cborstr); |
1674 |
|
|
} |
1675 |
|
|
|