936 lines
32 KiB
C
936 lines
32 KiB
C
/*
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* Copyright 2009-2010 10gen, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* This file contains C implementations of some of the functions needed by the
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* bson module. If possible, these implementations should be used to speed up
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* BSON encoding and decoding.
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*/
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#include "ruby.h"
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/* Ensure compatibility with early releases of Ruby 1.8.5 */
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#ifndef RSTRING_PTR
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# define RSTRING_PTR(v) RSTRING(v)->ptr
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#endif
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#ifndef RSTRING_LEN
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# define RSTRING_LEN(v) RSTRING(v)->len
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#endif
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#ifndef RARRAY_PTR
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# define RARRAY_PTR(v) RARRAY(v)->ptr
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#endif
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#ifndef RARRAY_LEN
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# define RARRAY_LEN(v) RARRAY(v)->len
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#endif
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#if HAVE_RUBY_ST_H
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#include "ruby/st.h"
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#endif
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#if HAVE_ST_H
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#include "st.h"
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#endif
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#if HAVE_RUBY_REGEX_H
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#include "ruby/regex.h"
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#endif
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#if HAVE_REGEX_H
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#include "regex.h"
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#endif
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#include <string.h>
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#include <math.h>
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#include <unistd.h>
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#include <time.h>
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#include "version.h"
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#include "buffer.h"
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#include "encoding_helpers.h"
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#define SAFE_WRITE(buffer, data, size) \
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if (buffer_write((buffer), (data), (size)) != 0) \
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rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c")
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#define SAFE_WRITE_AT_POS(buffer, position, data, size) \
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if (buffer_write_at_position((buffer), (position), (data), (size)) != 0) \
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rb_raise(rb_eRuntimeError, "invalid write at position in buffer.c")
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#define MAX_HOSTNAME_LENGTH 256
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static VALUE Binary;
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static VALUE Time;
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static VALUE ObjectID;
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static VALUE DBRef;
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static VALUE Code;
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static VALUE MinKey;
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static VALUE MaxKey;
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static VALUE Regexp;
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static VALUE OrderedHash;
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static VALUE InvalidKeyName;
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static VALUE InvalidStringEncoding;
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static VALUE InvalidDocument;
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static VALUE DigestMD5;
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#if HAVE_RUBY_ENCODING_H
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#include "ruby/encoding.h"
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#define STR_NEW(p,n) \
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({ \
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VALUE _str = rb_enc_str_new((p), (n), rb_utf8_encoding()); \
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rb_encoding* internal_encoding = rb_default_internal_encoding(); \
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if (internal_encoding) { \
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_str = rb_str_export_to_enc(_str, internal_encoding); \
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} \
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_str; \
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})
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/* MUST call TO_UTF8 before calling write_utf8. */
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#define TO_UTF8(string) rb_str_export_to_enc((string), rb_utf8_encoding())
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static void write_utf8(buffer_t buffer, VALUE string, char check_null) {
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result_t status = check_string(RSTRING_PTR(string), RSTRING_LEN(string),
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0, check_null);
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if (status == HAS_NULL) {
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buffer_free(buffer);
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rb_raise(InvalidDocument, "Key names / regex patterns must not contain the NULL byte");
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}
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SAFE_WRITE(buffer, RSTRING_PTR(string), RSTRING_LEN(string));
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}
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#else
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#define STR_NEW(p,n) rb_str_new((p), (n))
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/* MUST call TO_UTF8 before calling write_utf8. */
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#define TO_UTF8(string) (string)
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static void write_utf8(buffer_t buffer, VALUE string, char check_null) {
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result_t status = check_string(RSTRING_PTR(string), RSTRING_LEN(string),
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1, check_null);
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if (status == HAS_NULL) {
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buffer_free(buffer);
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rb_raise(InvalidDocument, "Key names / regex patterns must not contain the NULL byte");
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} else if (status == NOT_UTF_8) {
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buffer_free(buffer);
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rb_raise(InvalidStringEncoding, "String not valid UTF-8");
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}
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SAFE_WRITE(buffer, RSTRING_PTR(string), RSTRING_LEN(string));
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}
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#endif
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// this sucks. but for some reason these moved around between 1.8 and 1.9
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#ifdef ONIGURUMA_H
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#define IGNORECASE ONIG_OPTION_IGNORECASE
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#define MULTILINE ONIG_OPTION_MULTILINE
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#define EXTENDED ONIG_OPTION_EXTEND
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#else
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#define IGNORECASE RE_OPTION_IGNORECASE
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#define MULTILINE RE_OPTION_MULTILINE
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#define EXTENDED RE_OPTION_EXTENDED
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#endif
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/* TODO we ought to check that the malloc or asprintf was successful
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* and raise an exception if not. */
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/* TODO maybe we can use something more portable like vsnprintf instead
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* of this hack. And share it with the Python extension ;) */
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#ifndef HAVE_ASPRINTF
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#define INT2STRING(buffer, i) \
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{ \
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int vslength = _scprintf("%d", i) + 1; \
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*buffer = malloc(vslength); \
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_snprintf(*buffer, vslength, "%d", i); \
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}
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#else
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#define INT2STRING(buffer, i) asprintf(buffer, "%d", i);
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#endif
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#ifndef RREGEXP_SRC
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#define RREGEXP_SRC(r) rb_str_new(RREGEXP((r))->str, RREGEXP((r))->len)
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#endif
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// rubinius compatibility
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#ifndef RREGEXP_OPTIONS
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#define RREGEXP_OPTIONS(r) RREGEXP(value)->ptr->options
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#endif
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static char zero = 0;
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static char one = 1;
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static int cmp_char(const void* a, const void* b) {
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return *(char*)a - *(char*)b;
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}
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static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys, VALUE move_id);
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static int write_element_with_id(VALUE key, VALUE value, VALUE extra);
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static int write_element_without_id(VALUE key, VALUE value, VALUE extra);
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static VALUE elements_to_hash(const char* buffer, int max);
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static VALUE pack_extra(buffer_t buffer, VALUE check_keys) {
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return rb_ary_new3(2, LL2NUM((long long)buffer), check_keys);
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}
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static void write_name_and_type(buffer_t buffer, VALUE name, char type) {
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SAFE_WRITE(buffer, &type, 1);
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name = TO_UTF8(name);
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write_utf8(buffer, name, 1);
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SAFE_WRITE(buffer, &zero, 1);
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}
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static int write_element(VALUE key, VALUE value, VALUE extra, int allow_id) {
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buffer_t buffer = (buffer_t)NUM2LL(rb_ary_entry(extra, 0));
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VALUE check_keys = rb_ary_entry(extra, 1);
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if (TYPE(key) == T_SYMBOL) {
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// TODO better way to do this... ?
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key = rb_str_new2(rb_id2name(SYM2ID(key)));
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}
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if (TYPE(key) != T_STRING) {
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buffer_free(buffer);
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rb_raise(rb_eTypeError, "keys must be strings or symbols");
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}
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if (allow_id == 0 && strcmp("_id", RSTRING_PTR(key)) == 0) {
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return ST_CONTINUE;
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}
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if (check_keys == Qtrue) {
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int i;
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if (RSTRING_LEN(key) > 0 && RSTRING_PTR(key)[0] == '$') {
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buffer_free(buffer);
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rb_raise(InvalidKeyName, "key must not start with '$'");
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}
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for (i = 0; i < RSTRING_LEN(key); i++) {
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if (RSTRING_PTR(key)[i] == '.') {
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buffer_free(buffer);
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rb_raise(InvalidKeyName, "key must not contain '.'");
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}
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}
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}
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switch(TYPE(value)) {
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case T_BIGNUM:
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case T_FIXNUM:
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{
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if (rb_funcall(value, rb_intern(">"), 1, LL2NUM(9223372036854775807LL)) == Qtrue ||
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rb_funcall(value, rb_intern("<"), 1, LL2NUM(-9223372036854775808ULL)) == Qtrue) {
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buffer_free(buffer);
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rb_raise(rb_eRangeError, "MongoDB can only handle 8-byte ints");
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}
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if (rb_funcall(value, rb_intern(">"), 1, INT2NUM(2147483647L)) == Qtrue ||
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rb_funcall(value, rb_intern("<"), 1, INT2NUM(-2147483648L)) == Qtrue) {
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long long ll_value;
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write_name_and_type(buffer, key, 0x12);
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ll_value = NUM2LL(value);
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SAFE_WRITE(buffer, (char*)&ll_value, 8);
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} else {
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int int_value;
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write_name_and_type(buffer, key, 0x10);
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int_value = NUM2LL(value);
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SAFE_WRITE(buffer, (char*)&int_value, 4);
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}
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break;
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}
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case T_TRUE:
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{
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write_name_and_type(buffer, key, 0x08);
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SAFE_WRITE(buffer, &one, 1);
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break;
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}
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case T_FALSE:
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{
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write_name_and_type(buffer, key, 0x08);
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SAFE_WRITE(buffer, &zero, 1);
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break;
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}
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case T_FLOAT:
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{
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double d = NUM2DBL(value);
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write_name_and_type(buffer, key, 0x01);
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SAFE_WRITE(buffer, (char*)&d, 8);
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break;
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}
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case T_NIL:
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{
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write_name_and_type(buffer, key, 0x0A);
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break;
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}
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case T_HASH:
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{
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write_name_and_type(buffer, key, 0x03);
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write_doc(buffer, value, check_keys, Qfalse);
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break;
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}
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case T_ARRAY:
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{
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buffer_position length_location, start_position, obj_length;
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int items, i;
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VALUE* values;
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write_name_and_type(buffer, key, 0x04);
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start_position = buffer_get_position(buffer);
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// save space for length
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length_location = buffer_save_space(buffer, 4);
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if (length_location == -1) {
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rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
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}
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items = RARRAY_LEN(value);
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values = RARRAY_PTR(value);
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for(i = 0; i < items; i++) {
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char* name;
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VALUE key;
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INT2STRING(&name, i);
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key = rb_str_new2(name);
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write_element_with_id(key, values[i], pack_extra(buffer, check_keys));
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free(name);
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}
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// write null byte and fill in length
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SAFE_WRITE(buffer, &zero, 1);
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obj_length = buffer_get_position(buffer) - start_position;
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SAFE_WRITE_AT_POS(buffer, length_location, (const char*)&obj_length, 4);
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break;
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}
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case T_STRING:
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{
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if (strcmp(rb_obj_classname(value),
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"BSON::Code") == 0) {
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buffer_position length_location, start_position, total_length;
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int length;
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write_name_and_type(buffer, key, 0x0F);
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start_position = buffer_get_position(buffer);
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length_location = buffer_save_space(buffer, 4);
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if (length_location == -1) {
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rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
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}
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length = RSTRING_LEN(value) + 1;
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SAFE_WRITE(buffer, (char*)&length, 4);
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SAFE_WRITE(buffer, RSTRING_PTR(value), length - 1);
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SAFE_WRITE(buffer, &zero, 1);
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write_doc(buffer, rb_funcall(value, rb_intern("scope"), 0), Qfalse, Qfalse);
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total_length = buffer_get_position(buffer) - start_position;
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SAFE_WRITE_AT_POS(buffer, length_location, (const char*)&total_length, 4);
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break;
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} else {
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int length;
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write_name_and_type(buffer, key, 0x02);
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value = TO_UTF8(value);
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length = RSTRING_LEN(value) + 1;
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SAFE_WRITE(buffer, (char*)&length, 4);
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write_utf8(buffer, value, 0);
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SAFE_WRITE(buffer, &zero, 1);
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break;
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}
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}
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case T_SYMBOL:
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{
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const char* str_value = rb_id2name(SYM2ID(value));
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int length = strlen(str_value) + 1;
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write_name_and_type(buffer, key, 0x0E);
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SAFE_WRITE(buffer, (char*)&length, 4);
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SAFE_WRITE(buffer, str_value, length);
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break;
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}
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case T_OBJECT:
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{
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// TODO there has to be a better way to do these checks...
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const char* cls = rb_obj_classname(value);
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if (strcmp(cls, "BSON::Binary") == 0 ||
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strcmp(cls, "ByteBuffer") == 0) {
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const char subtype = strcmp(cls, "ByteBuffer") ?
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(const char)FIX2INT(rb_funcall(value, rb_intern("subtype"), 0)) : 2;
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VALUE string_data = rb_funcall(value, rb_intern("to_s"), 0);
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int length = RSTRING_LEN(string_data);
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write_name_and_type(buffer, key, 0x05);
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if (subtype == 2) {
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const int other_length = length + 4;
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SAFE_WRITE(buffer, (const char*)&other_length, 4);
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SAFE_WRITE(buffer, &subtype, 1);
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}
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SAFE_WRITE(buffer, (const char*)&length, 4);
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if (subtype != 2) {
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SAFE_WRITE(buffer, &subtype, 1);
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}
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SAFE_WRITE(buffer, RSTRING_PTR(string_data), length);
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break;
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}
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if (strcmp(cls, "BSON::ObjectID") == 0) {
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VALUE as_array = rb_funcall(value, rb_intern("to_a"), 0);
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int i;
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write_name_and_type(buffer, key, 0x07);
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for (i = 0; i < 12; i++) {
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char byte = (char)FIX2INT(RARRAY_PTR(as_array)[i]);
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SAFE_WRITE(buffer, &byte, 1);
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}
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break;
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}
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if (strcmp(cls, "BSON::DBRef") == 0) {
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buffer_position length_location, start_position, obj_length;
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VALUE ns, oid;
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write_name_and_type(buffer, key, 0x03);
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start_position = buffer_get_position(buffer);
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// save space for length
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length_location = buffer_save_space(buffer, 4);
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if (length_location == -1) {
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rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
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}
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ns = rb_funcall(value, rb_intern("namespace"), 0);
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write_element_with_id(rb_str_new2("$ref"), ns, pack_extra(buffer, Qfalse));
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oid = rb_funcall(value, rb_intern("object_id"), 0);
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write_element_with_id(rb_str_new2("$id"), oid, pack_extra(buffer, Qfalse));
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|
|
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// write null byte and fill in length
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SAFE_WRITE(buffer, &zero, 1);
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obj_length = buffer_get_position(buffer) - start_position;
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SAFE_WRITE_AT_POS(buffer, length_location, (const char*)&obj_length, 4);
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break;
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}
|
|
if (strcmp(cls, "BSON::MaxKey") == 0) {
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write_name_and_type(buffer, key, 0x7f);
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break;
|
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}
|
|
if (strcmp(cls, "BSON::MinKey") == 0) {
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write_name_and_type(buffer, key, 0xff);
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break;
|
|
}
|
|
if (strcmp(cls, "DateTime") == 0 || strcmp(cls, "Date") == 0 || strcmp(cls, "ActiveSupport::TimeWithZone") == 0) {
|
|
buffer_free(buffer);
|
|
rb_raise(InvalidDocument, "%s is not currently supported; use a UTC Time instance instead.", cls);
|
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break;
|
|
}
|
|
if(strcmp(cls, "Complex") == 0 || strcmp(cls, "Rational") == 0 || strcmp(cls, "BigDecimal") == 0) {
|
|
buffer_free(buffer);
|
|
rb_raise(InvalidDocument, "Cannot serialize the Numeric type %s as BSON; only Bignum, Fixnum, and Float are supported.", cls);
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|
break;
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}
|
|
buffer_free(buffer);
|
|
rb_raise(InvalidDocument, "Cannot serialize an object of class %s into BSON.", cls);
|
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break;
|
|
}
|
|
case T_DATA:
|
|
{
|
|
const char* cls = rb_obj_classname(value);
|
|
if (strcmp(cls, "Time") == 0) {
|
|
double t = NUM2DBL(rb_funcall(value, rb_intern("to_f"), 0));
|
|
long long time_since_epoch = (long long)round(t * 1000);
|
|
write_name_and_type(buffer, key, 0x09);
|
|
SAFE_WRITE(buffer, (const char*)&time_since_epoch, 8);
|
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break;
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|
}
|
|
if(strcmp(cls, "BigDecimal") == 0) {
|
|
buffer_free(buffer);
|
|
rb_raise(InvalidDocument, "Cannot serialize the Numeric type %s as BSON; only Bignum, Fixnum, and Float are supported.", cls);
|
|
break;
|
|
}
|
|
buffer_free(buffer);
|
|
rb_raise(InvalidDocument, "Cannot serialize an object of class %s into BSON.", cls);
|
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break;
|
|
}
|
|
case T_REGEXP:
|
|
{
|
|
VALUE pattern = RREGEXP_SRC(value);
|
|
long flags = RREGEXP_OPTIONS(value);
|
|
VALUE has_extra;
|
|
|
|
write_name_and_type(buffer, key, 0x0B);
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|
|
|
pattern = TO_UTF8(pattern);
|
|
write_utf8(buffer, pattern, 1);
|
|
SAFE_WRITE(buffer, &zero, 1);
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|
|
|
if (flags & IGNORECASE) {
|
|
char ignorecase = 'i';
|
|
SAFE_WRITE(buffer, &ignorecase, 1);
|
|
}
|
|
if (flags & MULTILINE) {
|
|
char multiline = 'm';
|
|
SAFE_WRITE(buffer, &multiline, 1);
|
|
}
|
|
if (flags & EXTENDED) {
|
|
char extended = 'x';
|
|
SAFE_WRITE(buffer, &extended, 1);
|
|
}
|
|
|
|
has_extra = rb_funcall(value, rb_intern("respond_to?"), 1, rb_str_new2("extra_options_str"));
|
|
if (TYPE(has_extra) == T_TRUE) {
|
|
VALUE extra = rb_funcall(value, rb_intern("extra_options_str"), 0);
|
|
buffer_position old_position = buffer_get_position(buffer);
|
|
SAFE_WRITE(buffer, RSTRING_PTR(extra), RSTRING_LEN(extra));
|
|
qsort(buffer_get_buffer(buffer) + old_position, RSTRING_LEN(extra), sizeof(char), cmp_char);
|
|
}
|
|
SAFE_WRITE(buffer, &zero, 1);
|
|
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
const char* cls = rb_obj_classname(value);
|
|
buffer_free(buffer);
|
|
rb_raise(InvalidDocument, "Cannot serialize an object of class %s (type %d) into BSON.", cls, TYPE(value));
|
|
break;
|
|
}
|
|
}
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static int write_element_without_id(VALUE key, VALUE value, VALUE extra) {
|
|
return write_element(key, value, extra, 0);
|
|
}
|
|
|
|
static int write_element_with_id(VALUE key, VALUE value, VALUE extra) {
|
|
return write_element(key, value, extra, 1);
|
|
}
|
|
|
|
static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys, VALUE move_id) {
|
|
buffer_position start_position = buffer_get_position(buffer);
|
|
buffer_position length_location = buffer_save_space(buffer, 4);
|
|
buffer_position length;
|
|
int allow_id;
|
|
int (*write_function)(VALUE, VALUE, VALUE) = NULL;
|
|
VALUE id_str = rb_str_new2("_id");
|
|
VALUE id_sym = ID2SYM(rb_intern("_id"));
|
|
|
|
if (length_location == -1) {
|
|
rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
|
|
}
|
|
|
|
// write '_id' first if move_id is true. then don't allow an id to be written.
|
|
if(move_id == Qtrue) {
|
|
allow_id = 0;
|
|
if (rb_funcall(hash, rb_intern("has_key?"), 1, id_str) == Qtrue) {
|
|
VALUE id = rb_hash_aref(hash, id_str);
|
|
write_element_with_id(id_str, id, pack_extra(buffer, check_keys));
|
|
} else if (rb_funcall(hash, rb_intern("has_key?"), 1, id_sym) == Qtrue) {
|
|
VALUE id = rb_hash_aref(hash, id_sym);
|
|
write_element_with_id(id_sym, id, pack_extra(buffer, check_keys));
|
|
}
|
|
}
|
|
else {
|
|
allow_id = 1;
|
|
if (strcmp(rb_obj_classname(hash), "Hash") == 0) {
|
|
if ((rb_funcall(hash, rb_intern("has_key?"), 1, id_str) == Qtrue) &&
|
|
(rb_funcall(hash, rb_intern("has_key?"), 1, id_sym) == Qtrue)) {
|
|
VALUE oid_sym = rb_hash_delete(hash, id_sym);
|
|
rb_funcall(hash, rb_intern("[]="), 2, id_str, oid_sym);
|
|
}
|
|
}
|
|
}
|
|
|
|
if(allow_id == 1) {
|
|
write_function = write_element_with_id;
|
|
}
|
|
else {
|
|
write_function = write_element_without_id;
|
|
}
|
|
|
|
// we have to check for an OrderedHash and handle that specially
|
|
if (strcmp(rb_obj_classname(hash), "BSON::OrderedHash") == 0) {
|
|
VALUE keys = rb_funcall(hash, rb_intern("keys"), 0);
|
|
int i;
|
|
for(i = 0; i < RARRAY_LEN(keys); i++) {
|
|
VALUE key = RARRAY_PTR(keys)[i];
|
|
VALUE value = rb_hash_aref(hash, key);
|
|
|
|
write_function(key, value, pack_extra(buffer, check_keys));
|
|
}
|
|
} else {
|
|
rb_hash_foreach(hash, write_function, pack_extra(buffer, check_keys));
|
|
}
|
|
|
|
// write null byte and fill in length
|
|
SAFE_WRITE(buffer, &zero, 1);
|
|
length = buffer_get_position(buffer) - start_position;
|
|
|
|
// make sure that length doesn't exceed 4MB
|
|
if (length > 4 * 1024 * 1024) {
|
|
buffer_free(buffer);
|
|
rb_raise(InvalidDocument, "Document too large: BSON documents are limited to 4MB.");
|
|
return;
|
|
}
|
|
SAFE_WRITE_AT_POS(buffer, length_location, (const char*)&length, 4);
|
|
}
|
|
|
|
static VALUE method_serialize(VALUE self, VALUE doc, VALUE check_keys, VALUE move_id) {
|
|
VALUE result;
|
|
buffer_t buffer = buffer_new();
|
|
if (buffer == NULL) {
|
|
rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
|
|
}
|
|
|
|
write_doc(buffer, doc, check_keys, move_id);
|
|
|
|
result = rb_str_new(buffer_get_buffer(buffer), buffer_get_position(buffer));
|
|
if (buffer_free(buffer) != 0) {
|
|
rb_raise(rb_eRuntimeError, "failed to free buffer");
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static VALUE get_value(const char* buffer, int* position, int type) {
|
|
VALUE value;
|
|
switch (type) {
|
|
case -1:
|
|
{
|
|
value = rb_class_new_instance(0, NULL, MinKey);
|
|
break;
|
|
}
|
|
case 1:
|
|
{
|
|
double d;
|
|
memcpy(&d, buffer + *position, 8);
|
|
value = rb_float_new(d);
|
|
*position += 8;
|
|
break;
|
|
}
|
|
case 2:
|
|
case 13:
|
|
{
|
|
int value_length;
|
|
value_length = *(int*)(buffer + *position) - 1;
|
|
*position += 4;
|
|
value = STR_NEW(buffer + *position, value_length);
|
|
*position += value_length + 1;
|
|
break;
|
|
}
|
|
case 3:
|
|
{
|
|
int size;
|
|
memcpy(&size, buffer + *position, 4);
|
|
if (strcmp(buffer + *position + 5, "$ref") == 0) { // DBRef
|
|
int offset = *position + 10;
|
|
VALUE argv[2];
|
|
int collection_length = *(int*)(buffer + offset) - 1;
|
|
char id_type;
|
|
offset += 4;
|
|
|
|
argv[0] = STR_NEW(buffer + offset, collection_length);
|
|
offset += collection_length + 1;
|
|
id_type = buffer[offset];
|
|
offset += 5;
|
|
argv[1] = get_value(buffer, &offset, (int)id_type);
|
|
value = rb_class_new_instance(2, argv, DBRef);
|
|
} else {
|
|
value = elements_to_hash(buffer + *position + 4, size - 5);
|
|
}
|
|
*position += size;
|
|
break;
|
|
}
|
|
case 4:
|
|
{
|
|
int size, end;
|
|
memcpy(&size, buffer + *position, 4);
|
|
end = *position + size - 1;
|
|
*position += 4;
|
|
|
|
value = rb_ary_new();
|
|
while (*position < end) {
|
|
int type = (int)buffer[(*position)++];
|
|
int key_size = strlen(buffer + *position);
|
|
VALUE to_append;
|
|
|
|
*position += key_size + 1; // just skip the key, they're in order.
|
|
to_append = get_value(buffer, position, type);
|
|
rb_ary_push(value, to_append);
|
|
}
|
|
(*position)++;
|
|
break;
|
|
}
|
|
case 5:
|
|
{
|
|
int length, subtype;
|
|
VALUE data, st;
|
|
VALUE argv[2];
|
|
memcpy(&length, buffer + *position, 4);
|
|
subtype = (unsigned char)buffer[*position + 4];
|
|
if (subtype == 2) {
|
|
data = rb_str_new(buffer + *position + 9, length - 4);
|
|
} else {
|
|
data = rb_str_new(buffer + *position + 5, length);
|
|
}
|
|
st = INT2FIX(subtype);
|
|
argv[0] = data;
|
|
argv[1] = st;
|
|
value = rb_class_new_instance(2, argv, Binary);
|
|
*position += length + 5;
|
|
break;
|
|
}
|
|
case 6:
|
|
{
|
|
value = Qnil;
|
|
break;
|
|
}
|
|
case 7:
|
|
{
|
|
VALUE str = rb_str_new(buffer + *position, 12);
|
|
VALUE oid = rb_funcall(str, rb_intern("unpack"), 1, rb_str_new2("C*"));
|
|
value = rb_class_new_instance(1, &oid, ObjectID);
|
|
*position += 12;
|
|
break;
|
|
}
|
|
case 8:
|
|
{
|
|
value = buffer[(*position)++] ? Qtrue : Qfalse;
|
|
break;
|
|
}
|
|
case 9:
|
|
{
|
|
long long millis;
|
|
VALUE seconds, microseconds;
|
|
memcpy(&millis, buffer + *position, 8);
|
|
seconds = LL2NUM(millis / 1000);
|
|
microseconds = INT2NUM((millis % 1000) * 1000);
|
|
|
|
value = rb_funcall(Time, rb_intern("at"), 2, seconds, microseconds);
|
|
value = rb_funcall(value, rb_intern("utc"), 0);
|
|
*position += 8;
|
|
break;
|
|
}
|
|
case 10:
|
|
{
|
|
value = Qnil;
|
|
break;
|
|
}
|
|
case 11:
|
|
{
|
|
int pattern_length = strlen(buffer + *position);
|
|
VALUE pattern = STR_NEW(buffer + *position, pattern_length);
|
|
int flags_length, flags = 0, i = 0;
|
|
VALUE argv[3];
|
|
*position += pattern_length + 1;
|
|
|
|
flags_length = strlen(buffer + *position);
|
|
for (i = 0; i < flags_length; i++) {
|
|
char flag = buffer[*position + i];
|
|
if (flag == 'i') {
|
|
flags |= IGNORECASE;
|
|
}
|
|
else if (flag == 'm') {
|
|
flags |= MULTILINE;
|
|
}
|
|
else if (flag == 'x') {
|
|
flags |= EXTENDED;
|
|
}
|
|
}
|
|
argv[0] = pattern;
|
|
argv[1] = INT2FIX(flags);
|
|
value = rb_class_new_instance(2, argv, Regexp);
|
|
*position += flags_length + 1;
|
|
break;
|
|
}
|
|
case 12:
|
|
{
|
|
int collection_length;
|
|
VALUE collection, str, oid, id, argv[2];
|
|
collection_length = *(int*)(buffer + *position) - 1;
|
|
*position += 4;
|
|
collection = STR_NEW(buffer + *position, collection_length);
|
|
*position += collection_length + 1;
|
|
|
|
str = rb_str_new(buffer + *position, 12);
|
|
oid = rb_funcall(str, rb_intern("unpack"), 1, rb_str_new2("C*"));
|
|
id = rb_class_new_instance(1, &oid, ObjectID);
|
|
*position += 12;
|
|
|
|
argv[0] = collection;
|
|
argv[1] = id;
|
|
value = rb_class_new_instance(2, argv, DBRef);
|
|
break;
|
|
}
|
|
case 14:
|
|
{
|
|
int value_length;
|
|
memcpy(&value_length, buffer + *position, 4);
|
|
value = ID2SYM(rb_intern(buffer + *position + 4));
|
|
*position += value_length + 4;
|
|
break;
|
|
}
|
|
case 15:
|
|
{
|
|
int code_length, scope_size;
|
|
VALUE code, scope, argv[2];
|
|
*position += 4;
|
|
code_length = *(int*)(buffer + *position) - 1;
|
|
*position += 4;
|
|
code = STR_NEW(buffer + *position, code_length);
|
|
*position += code_length + 1;
|
|
|
|
memcpy(&scope_size, buffer + *position, 4);
|
|
scope = elements_to_hash(buffer + *position + 4, scope_size - 5);
|
|
*position += scope_size;
|
|
|
|
argv[0] = code;
|
|
argv[1] = scope;
|
|
value = rb_class_new_instance(2, argv, Code);
|
|
break;
|
|
}
|
|
case 16:
|
|
{
|
|
int i;
|
|
memcpy(&i, buffer + *position, 4);
|
|
value = LL2NUM(i);
|
|
*position += 4;
|
|
break;
|
|
}
|
|
case 17:
|
|
{
|
|
int i;
|
|
int j;
|
|
memcpy(&i, buffer + *position, 4);
|
|
memcpy(&j, buffer + *position + 4, 4);
|
|
value = rb_ary_new3(2, LL2NUM(i), LL2NUM(j));
|
|
*position += 8;
|
|
break;
|
|
}
|
|
case 18:
|
|
{
|
|
long long ll;
|
|
memcpy(&ll, buffer + *position, 8);
|
|
value = LL2NUM(ll);
|
|
*position += 8;
|
|
break;
|
|
}
|
|
case 127:
|
|
{
|
|
value = rb_class_new_instance(0, NULL, MaxKey);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
rb_raise(rb_eTypeError, "no c decoder for this type yet (%d)", type);
|
|
break;
|
|
}
|
|
}
|
|
return value;
|
|
}
|
|
|
|
static VALUE elements_to_hash(const char* buffer, int max) {
|
|
VALUE hash = rb_class_new_instance(0, NULL, OrderedHash);
|
|
int position = 0;
|
|
while (position < max) {
|
|
int type = (int)buffer[position++];
|
|
int name_length = strlen(buffer + position);
|
|
VALUE name = STR_NEW(buffer + position, name_length);
|
|
VALUE value;
|
|
position += name_length + 1;
|
|
value = get_value(buffer, &position, type);
|
|
rb_funcall(hash, rb_intern("[]="), 2, name, value);
|
|
}
|
|
return hash;
|
|
}
|
|
|
|
static VALUE method_deserialize(VALUE self, VALUE bson) {
|
|
const char* buffer = RSTRING_PTR(bson);
|
|
int remaining = RSTRING_LEN(bson);
|
|
|
|
// NOTE we just swallow the size and end byte here
|
|
buffer += 4;
|
|
remaining -= 5;
|
|
|
|
return elements_to_hash(buffer, remaining);
|
|
}
|
|
|
|
|
|
static VALUE fast_pack(VALUE self)
|
|
{
|
|
VALUE res;
|
|
long i;
|
|
char c;
|
|
|
|
res = rb_str_buf_new(0);
|
|
|
|
for (i = 0; i < RARRAY_LEN(self); i++) {
|
|
c = FIX2LONG(RARRAY_PTR(self)[i]);
|
|
rb_str_buf_cat(res, &c, sizeof(char));
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
static VALUE objectid_generate(VALUE self)
|
|
{
|
|
VALUE oid, digest;
|
|
char hostname[MAX_HOSTNAME_LENGTH];
|
|
unsigned char oid_bytes[12];
|
|
unsigned long t, inc;
|
|
unsigned short pid;
|
|
int i;
|
|
|
|
t = htonl(time(NULL));
|
|
MEMCPY(&oid_bytes, &t, unsigned char, 4);
|
|
|
|
if (gethostname(hostname, MAX_HOSTNAME_LENGTH) != 0) {
|
|
rb_raise(rb_eRuntimeError, "failed to get hostname");
|
|
}
|
|
digest = rb_funcall(DigestMD5, rb_intern("digest"), 1, rb_str_new2(hostname));
|
|
MEMCPY(&oid_bytes[4], RSTRING_PTR(digest), unsigned char, 3);
|
|
|
|
pid = htons(getpid());
|
|
MEMCPY(&oid_bytes[7], &pid, unsigned char, 2);
|
|
|
|
inc = htonl(FIX2ULONG(rb_funcall(self, rb_intern("get_inc"), 0)));
|
|
MEMCPY(&oid_bytes[9], ((unsigned char*)&inc + 1), unsigned char, 3);
|
|
|
|
oid = rb_ary_new2(12);
|
|
for(i = 0; i < 12; i++) {
|
|
rb_ary_store(oid, i, INT2FIX((unsigned int)oid_bytes[i]));
|
|
}
|
|
return oid;
|
|
}
|
|
|
|
|
|
void Init_cbson() {
|
|
VALUE bson, CBson, Digest, ext_version;
|
|
Time = rb_const_get(rb_cObject, rb_intern("Time"));
|
|
|
|
bson = rb_const_get(rb_cObject, rb_intern("BSON"));
|
|
rb_require("bson/types/binary");
|
|
Binary = rb_const_get(bson, rb_intern("Binary"));
|
|
rb_require("bson/types/objectid");
|
|
ObjectID = rb_const_get(bson, rb_intern("ObjectID"));
|
|
rb_require("bson/types/dbref");
|
|
DBRef = rb_const_get(bson, rb_intern("DBRef"));
|
|
rb_require("bson/types/code");
|
|
Code = rb_const_get(bson, rb_intern("Code"));
|
|
rb_require("bson/types/min_max_keys");
|
|
MinKey = rb_const_get(bson, rb_intern("MinKey"));
|
|
MaxKey = rb_const_get(bson, rb_intern("MaxKey"));
|
|
Regexp = rb_const_get(rb_cObject, rb_intern("Regexp"));
|
|
rb_require("bson/exceptions");
|
|
InvalidKeyName = rb_const_get(bson, rb_intern("InvalidKeyName"));
|
|
InvalidStringEncoding = rb_const_get(bson, rb_intern("InvalidStringEncoding"));
|
|
InvalidDocument = rb_const_get(bson, rb_intern("InvalidDocument"));
|
|
rb_require("bson/ordered_hash");
|
|
OrderedHash = rb_const_get(bson, rb_intern("OrderedHash"));
|
|
|
|
CBson = rb_define_module("CBson");
|
|
ext_version = rb_str_new2(VERSION);
|
|
rb_define_const(CBson, "VERSION", ext_version);
|
|
rb_define_module_function(CBson, "serialize", method_serialize, 3);
|
|
rb_define_module_function(CBson, "deserialize", method_deserialize, 1);
|
|
|
|
rb_require("digest/md5");
|
|
Digest = rb_const_get(rb_cObject, rb_intern("Digest"));
|
|
DigestMD5 = rb_const_get(Digest, rb_intern("MD5"));
|
|
|
|
rb_define_method(ObjectID, "generate", objectid_generate, 0);
|
|
|
|
rb_define_method(rb_cArray, "fast_pack", fast_pack, 0);
|
|
}
|