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# Copyright 2015 - present MongoDB, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
use strict;
use warnings;
package MongoDB::Role::_UpdatePreEncoder;
# MongoDB interface for pre-encoding and validating update/replace docs
use version;
our $VERSION = 'v2.0.2';
use Moo::Role;
use BSON::Raw;
use MongoDB::Error;
use MongoDB::_Constants;
use namespace::clean;
requires qw/bson_codec/;
sub _pre_encode_update {
my ( $self, $max_bson_object_size, $doc, $is_replace ) = @_;
my $bson_doc = $self->bson_codec->encode_one(
$doc,
{
invalid_chars => $is_replace ? '.' : '',
max_length => $is_replace ? $max_bson_object_size : undef,
}
);
# must check if first character of first key is valid for replace/update;
# do this from BSON to get key *after* op_char replacment;
# only need to validate if length is enough for a document with a key
my ( $len, undef, $first_char ) = unpack( P_INT32 . "CZ", $bson_doc );
if ( $len >= MIN_KEYED_DOC_LENGTH ) {
my $err;
if ($is_replace) {
$err = "replacement document must not contain update operators"
if $first_char eq '$';
}
else {
$err = "update document must only contain update operators"
if $first_char ne '$';
}
MongoDB::DocumentError->throw(
message => $err,
document => $doc,
) if $err;
}
elsif ( ! $is_replace ) {
MongoDB::DocumentError->throw(
message => "Update document was empty!",
document => $doc,
);
}
# manually bless for speed
return bless { bson => $bson_doc, metadata => {} }, "BSON::Raw";
}
1;
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