/
client_encryption_operation_execution.go
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/
client_encryption_operation_execution.go
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// Copyright (C) MongoDB, Inc. 2022-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 unified
import (
"context"
"errors"
"fmt"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"go.mongodb.org/mongo-driver/x/bsonx/bsoncore"
)
// parseDataKeyOptions will parse an options document and return an options.DataKeyOptions instance.
func parseDataKeyOptions(opts bson.Raw) (*options.DataKeyOptions, error) {
elems, err := opts.Elements()
if err != nil {
return nil, err
}
dko := options.DataKey()
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "masterKey":
masterKey := make(map[string]interface{})
if err := val.Unmarshal(&masterKey); err != nil {
return nil, fmt.Errorf("error unmarshaling 'masterKey': %w", err)
}
dko.SetMasterKey(masterKey)
case "keyAltNames":
keyAltNames := []string{}
if err := val.Unmarshal(&keyAltNames); err != nil {
return nil, fmt.Errorf("error unmarshaling 'keyAltNames': %w", err)
}
dko.SetKeyAltNames(keyAltNames)
case "keyMaterial":
bin := primitive.Binary{}
if err := val.Unmarshal(&bin); err != nil {
return nil, fmt.Errorf("error unmarshaling 'keyMaterial': %w", err)
}
dko.SetKeyMaterial(bin.Data)
default:
return nil, fmt.Errorf("unrecognized DataKeyOptions arg: %q", key)
}
}
return dko, nil
}
// executeAddKeyAltName adds a keyAltName to the keyAltNames array of the key document in the key vault collection with
// the given UUID (BSON binary subtype 0x04). Returns the previous version of the key document.
func executeAddKeyAltName(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
var id primitive.Binary
var keyAltName string
elems, err := operation.Arguments.Elements()
if err != nil {
return nil, err
}
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "id":
subtype, data := val.Binary()
id = primitive.Binary{Subtype: subtype, Data: data}
case "keyAltName":
keyAltName = val.StringValue()
default:
return nil, fmt.Errorf("unrecognized AddKeyAltName arg: %q", key)
}
}
res, err := cee.AddKeyAltName(ctx, id, keyAltName).Raw()
// Ignore ErrNoDocuments errors from Raw. In the event that the cursor returned in a find operation has no
// associated documents, Raw will return ErrNoDocuments.
if errors.Is(err, mongo.ErrNoDocuments) {
err = nil
}
return newDocumentResult(res, err), nil
}
// executeCreateDataKey will attempt to create a client-encrypted key for a unified operation.
func executeCreateDataKey(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
var kmsProvider string
var dko *options.DataKeyOptions
elems, err := operation.Arguments.Elements()
if err != nil {
return nil, err
}
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "kmsProvider":
kmsProvider = val.StringValue()
case "opts":
dko, err = parseDataKeyOptions(val.Document())
if err != nil {
return nil, err
}
default:
return nil, fmt.Errorf("unrecognized CreateDataKey arg: %q", key)
}
}
if kmsProvider == "" {
return nil, newMissingArgumentError("kmsProvider")
}
bin, err := cee.CreateDataKey(ctx, kmsProvider, dko)
if bin.Data != nil {
bsonType, bsonData, err := bson.MarshalValue(bin)
if err != nil {
return nil, err
}
return newValueResult(bsonType, bsonData, err), nil
}
return newErrorResult(err), nil
}
// executeDeleteKey removes the key document with the given UUID (BSON binary subtype 0x04) from the key vault
// collection. Returns the result of the internal deleteOne() operation on the key vault collection.
func executeDeleteKey(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
var id primitive.Binary
elems, err := operation.Arguments.Elements()
if err != nil {
return nil, err
}
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "id":
subtype, data := val.Binary()
id = primitive.Binary{Subtype: subtype, Data: data}
default:
return nil, fmt.Errorf("unrecognized DeleteKey arg: %q", key)
}
}
res, err := cee.DeleteKey(ctx, id)
raw := emptyCoreDocument
if res != nil {
raw = bsoncore.NewDocumentBuilder().
AppendInt64("deletedCount", res.DeletedCount).
Build()
}
return newDocumentResult(raw, err), nil
}
// executeGetKeyByAltName returns a key document in the key vault collection with the given keyAltName.
func executeGetKeyByAltName(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
var keyAltName string
elems, err := operation.Arguments.Elements()
if err != nil {
return nil, err
}
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "keyAltName":
keyAltName = val.StringValue()
default:
return nil, fmt.Errorf("unrecognized GetKeyByAltName arg: %q", key)
}
}
res, err := cee.GetKeyByAltName(ctx, keyAltName).Raw()
// Ignore ErrNoDocuments errors from Raw. In the event that the cursor returned in a find operation has no
// associated documents, Raw will return ErrNoDocuments.
if errors.Is(err, mongo.ErrNoDocuments) {
err = nil
}
return newDocumentResult(res, err), nil
}
// executeGetKey finds a single key document with the given UUID (BSON binary subtype 0x04). Returns the result of the
// internal find() operation on the key vault collection.
func executeGetKey(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
var id primitive.Binary
elems, err := operation.Arguments.Elements()
if err != nil {
return nil, err
}
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "id":
subtype, data := val.Binary()
id = primitive.Binary{Subtype: subtype, Data: data}
default:
return nil, fmt.Errorf("unrecognized GetKey arg: %q", key)
}
}
res, err := cee.GetKey(ctx, id).Raw()
// Ignore ErrNoDocuments errors from Raw. In the event that the cursor returned in a find operation has no
// associated documents, Raw will return ErrNoDocuments.
if errors.Is(err, mongo.ErrNoDocuments) {
err = nil
}
return newDocumentResult(res, err), nil
}
// executeGetKeys finds all documents in the key vault collection. Returns the result of the internal find() operation
// on the key vault collection.
func executeGetKeys(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
cursor, err := cee.GetKeys(ctx)
if err != nil {
return newErrorResult(err), nil
}
var docs []bson.Raw
if err := cursor.All(ctx, &docs); err != nil {
return newErrorResult(err), nil
}
return newCursorResult(docs), nil
}
// executeRemoveKeyAltName will remove keyAltName from the data key if it is present on the data key.
func executeRemoveKeyAltName(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
var id primitive.Binary
var keyAltName string
elems, err := operation.Arguments.Elements()
if err != nil {
return nil, err
}
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "id":
subtype, data := val.Binary()
id = primitive.Binary{Subtype: subtype, Data: data}
case "keyAltName":
keyAltName = val.StringValue()
default:
return nil, fmt.Errorf("unrecognized RemoveKeyAltName arg: %q", key)
}
}
res, err := cee.RemoveKeyAltName(ctx, id, keyAltName).Raw()
// Ignore ErrNoDocuments errors from Raw. In the event that the cursor returned in a find operation has no
// associated documents, Raw will return ErrNoDocuments.
if errors.Is(err, mongo.ErrNoDocuments) {
err = nil
}
return newDocumentResult(res, err), nil
}
// parseRewrapManyDataKeyOptions will parse an options document and return an
// options.RewrapManyDataKeyOptions instance.
func parseRewrapManyDataKeyOptions(opts bson.Raw) (*options.RewrapManyDataKeyOptions, error) {
elems, err := opts.Elements()
if err != nil {
return nil, err
}
rmdko := options.RewrapManyDataKey()
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "provider":
rmdko.SetProvider(val.StringValue())
case "masterKey":
rmdko.SetMasterKey(val.Document())
default:
return nil, fmt.Errorf("unrecognized RewrapManyDataKeyOptions arg: %q", key)
}
}
return rmdko, nil
}
// rewrapManyDataKeyResultsOpResult will wrap the result of rewrapping a data key into an operation result for test
// validation.
func rewrapManyDataKeyResultsOpResult(result *mongo.RewrapManyDataKeyResult) (*operationResult, error) {
raw := bsoncore.NewDocumentBuilder()
if res := result.BulkWriteResult; res != nil {
rawUpsertedIDs := emptyDocument
var marshalErr error
if res.UpsertedIDs != nil {
rawUpsertedIDs, marshalErr = bson.Marshal(res.UpsertedIDs)
if marshalErr != nil {
return nil, fmt.Errorf("error marshalling UpsertedIDs map to BSON: %w", marshalErr)
}
}
bulkWriteResult := bsoncore.NewDocumentBuilder()
bulkWriteResult.
AppendInt64("insertedCount", res.InsertedCount).
AppendInt64("deletedCount", res.DeletedCount).
AppendInt64("matchedCount", res.MatchedCount).
AppendInt64("modifiedCount", res.ModifiedCount).
AppendInt64("upsertedCount", res.UpsertedCount).
AppendDocument("upsertedIds", rawUpsertedIDs)
raw.AppendDocument("bulkWriteResult", bulkWriteResult.Build())
}
return newDocumentResult(raw.Build(), nil), nil
}
// executeRewrapManyDataKey will attempt to re-wrap a number of data keys given a new provider, master key, and filter.
func executeRewrapManyDataKey(ctx context.Context, operation *operation) (*operationResult, error) {
cee, err := entities(ctx).clientEncryption(operation.Object)
if err != nil {
return nil, err
}
var filter bson.Raw
var rmdko *options.RewrapManyDataKeyOptions
elems, err := operation.Arguments.Elements()
if err != nil {
return nil, err
}
for _, elem := range elems {
key := elem.Key()
val := elem.Value()
switch key {
case "filter":
filter = val.Document()
case "opts":
rmdko, err = parseRewrapManyDataKeyOptions(val.Document())
if err != nil {
return nil, err
}
default:
return nil, fmt.Errorf("unrecognized RewrapManyDataKey arg: %q", key)
}
}
if filter == nil {
return nil, newMissingArgumentError("filter")
}
result, err := cee.RewrapManyDataKey(ctx, filter, rmdko)
if err != nil {
return newErrorResult(err), nil
}
return rewrapManyDataKeyResultsOpResult(result)
}