110 lines
4.3 KiB
Go
110 lines
4.3 KiB
Go
// Copyright (C) MongoDB, Inc. 2017-present.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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package options
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// AutoEncryptionOptions represents options used to configure auto encryption/decryption behavior for a mongo.Client
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// instance.
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//
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// Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic
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// encryption is not supported for operations on a database or view, and operations that are not bypassed will result
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// in error. Too bypass automatic encryption for all operations, set BypassAutoEncryption=true.
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//
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// Auto encryption requires the authenticated user to have the listCollections privilege action.
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//
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// If automatic encryption fails on an operation, use a MongoClient configured with bypassAutoEncryption=true and use
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// ClientEncryption.encrypt() to manually encrypt values.
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//
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// Enabling Client Side Encryption reduces the maximum document and message size (using a maxBsonObjectSize of 2MiB and
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// maxMessageSizeBytes of 6MB) and may have a negative performance impact.
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type AutoEncryptionOptions struct {
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KeyVaultClientOptions *ClientOptions
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KeyVaultNamespace string
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KmsProviders map[string]map[string]interface{}
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SchemaMap map[string]interface{}
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BypassAutoEncryption *bool
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ExtraOptions map[string]interface{}
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}
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// AutoEncryption creates a new AutoEncryptionOptions configured with default values.
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func AutoEncryption() *AutoEncryptionOptions {
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return &AutoEncryptionOptions{}
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}
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// SetKeyVaultClientOptions specifies options for the client used to communicate with the key vault collection. If this is
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// not set, the client used to do encryption will be re-used for key vault communication.
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func (a *AutoEncryptionOptions) SetKeyVaultClientOptions(opts *ClientOptions) *AutoEncryptionOptions {
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a.KeyVaultClientOptions = opts
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return a
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}
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// SetKeyVaultNamespace specifies the namespace of the key vault collection. This is required.
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func (a *AutoEncryptionOptions) SetKeyVaultNamespace(ns string) *AutoEncryptionOptions {
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a.KeyVaultNamespace = ns
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return a
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}
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// SetKmsProviders specifies options for KMS providers. This is required.
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func (a *AutoEncryptionOptions) SetKmsProviders(providers map[string]map[string]interface{}) *AutoEncryptionOptions {
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a.KmsProviders = providers
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return a
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}
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// SetSchemaMap specifies a map from namespace to local schema document. Schemas supplied in the schemaMap only apply
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// to configuring automatic encryption for client side encryption. Other validation rules in the JSON schema will not
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// be enforced by the driver and will result in an error.
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//
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// Supplying a schemaMap provides more security than relying on JSON Schemas obtained from the server. It protects
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// against a malicious server advertising a false JSON Schema, which could trick the client into sending unencrypted
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// data that should be encrypted.
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func (a *AutoEncryptionOptions) SetSchemaMap(schemaMap map[string]interface{}) *AutoEncryptionOptions {
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a.SchemaMap = schemaMap
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return a
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}
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// SetBypassAutoEncryption specifies whether or not auto encryption should be done.
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func (a *AutoEncryptionOptions) SetBypassAutoEncryption(bypass bool) *AutoEncryptionOptions {
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a.BypassAutoEncryption = &bypass
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return a
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}
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// SetExtraOptions specifies a map of options to configure the mongocryptd process.
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func (a *AutoEncryptionOptions) SetExtraOptions(extraOpts map[string]interface{}) *AutoEncryptionOptions {
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a.ExtraOptions = extraOpts
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return a
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}
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// MergeAutoEncryptionOptions combines the argued AutoEncryptionOptions in a last-one wins fashion.
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func MergeAutoEncryptionOptions(opts ...*AutoEncryptionOptions) *AutoEncryptionOptions {
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aeo := AutoEncryption()
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for _, opt := range opts {
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if opt == nil {
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continue
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}
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if opt.KeyVaultClientOptions != nil {
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aeo.KeyVaultClientOptions = opt.KeyVaultClientOptions
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}
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if opt.KeyVaultNamespace != "" {
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aeo.KeyVaultNamespace = opt.KeyVaultNamespace
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}
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if opt.KmsProviders != nil {
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aeo.KmsProviders = opt.KmsProviders
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}
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if opt.SchemaMap != nil {
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aeo.SchemaMap = opt.SchemaMap
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}
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if opt.BypassAutoEncryption != nil {
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aeo.BypassAutoEncryption = opt.BypassAutoEncryption
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}
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if opt.ExtraOptions != nil {
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aeo.ExtraOptions = opt.ExtraOptions
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}
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}
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return aeo
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}
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