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// Copyright (C) MongoDB, Inc. 2017-present.
//
// 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
package mongo
import (
"context"
"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
)
// keyRetriever gets keys from the key vault collection.
type keyRetriever struct {
coll *Collection
}
func (kr *keyRetriever) cryptKeys(ctx context.Context, filter bsoncore.Document) ([]bsoncore.Document, error) {
cursor, err := kr.coll.Find(ctx, filter)
if err != nil {
return nil, EncryptionKeyVaultError{Wrapped: err}
}
defer cursor.Close(ctx)
var results []bsoncore.Document
for cursor.Next(ctx) {
cur := make([]byte, len(cursor.Current))
copy(cur, cursor.Current)
results = append(results, cur)
}
if err = cursor.Err(); err != nil {
return nil, EncryptionKeyVaultError{Wrapped: err}
}
return results, nil
}
// collInfoRetriever gets info for collections from a database.
type collInfoRetriever struct {
client *Client
}
func (cir *collInfoRetriever) cryptCollInfo(ctx context.Context, db string, filter bsoncore.Document) (bsoncore.Document, error) {
cursor, err := cir.client.Database(db).ListCollections(ctx, filter)
if err != nil {
return nil, err
}
defer cursor.Close(ctx)
if !cursor.Next(ctx) {
return nil, cursor.Err()
}
res := make([]byte, len(cursor.Current))
copy(res, cursor.Current)
return res, nil
}
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