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/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/base/data_cursor.h"
#include "mongo/base/data_type_validated.h"
#include "mongo/bson/bson_depth.h"
#include "mongo/client/dbclient_base.h"
#include "mongo/config.h"
#include "mongo/crypto/aead_encryption.h"
#include "mongo/crypto/symmetric_crypto.h"
#include "mongo/db/client.h"
#include "mongo/db/commands.h"
#include "mongo/db/matcher/schema/encrypt_schema_gen.h"
#include "mongo/db/namespace_string.h"
#include "mongo/rpc/object_check.h"
#include "mongo/rpc/op_msg_rpc_impls.h"
#include "mongo/scripting/mozjs/bindata.h"
#include "mongo/scripting/mozjs/implscope.h"
#include "mongo/scripting/mozjs/maxkey.h"
#include "mongo/scripting/mozjs/minkey.h"
#include "mongo/scripting/mozjs/mongo.h"
#include "mongo/scripting/mozjs/objectwrapper.h"
#include "mongo/scripting/mozjs/valuereader.h"
#include "mongo/scripting/mozjs/valuewriter.h"
#include "mongo/shell/encrypted_shell_options.h"
#include "mongo/shell/kms.h"
#include "mongo/shell/kms_gen.h"
#include "mongo/shell/shell_options.h"
#include "mongo/util/lru_cache.h"
namespace mongo {
constexpr std::size_t kEncryptedDBCacheSize = 50;
constexpr uint8_t kIntentToEncryptBit = 0x00;
constexpr uint8_t kDeterministicEncryptionBit = 0x01;
constexpr uint8_t kRandomEncryptionBit = 0x02;
static constexpr auto kExplain = "explain"_sd;
constexpr std::array<StringData, 11> kEncryptedCommands = {"aggregate"_sd,
"count"_sd,
"delete"_sd,
"distinct"_sd,
kExplain,
"find"_sd,
"findandmodify"_sd,
"findAndModify"_sd,
"getMore"_sd,
"insert"_sd,
"update"_sd};
class EncryptedDBClientBase : public DBClientBase, public mozjs::EncryptionCallbacks {
public:
EncryptedDBClientBase(std::unique_ptr<DBClientBase> conn,
ClientSideFLEOptions encryptionOptions,
JS::HandleValue collection,
JSContext* cx);
std::string getServerAddress() const final;
bool call(Message& toSend, Message& response, bool assertOk, std::string* actualServer) final;
void say(Message& toSend, bool isRetry, std::string* actualServer) final;
bool lazySupported() const final;
using DBClientBase::runCommandWithTarget;
virtual std::pair<rpc::UniqueReply, DBClientBase*> runCommandWithTarget(
OpMsgRequest request) override;
std::string toString() const final;
int getMinWireVersion() final;
int getMaxWireVersion() final;
using EncryptionCallbacks::generateDataKey;
void generateDataKey(JSContext* cx, JS::CallArgs args) final;
using EncryptionCallbacks::getDataKeyCollection;
void getDataKeyCollection(JSContext* cx, JS::CallArgs args) final;
using EncryptionCallbacks::encrypt;
void encrypt(mozjs::MozJSImplScope* scope, JSContext* cx, JS::CallArgs args) final;
using EncryptionCallbacks::decrypt;
void decrypt(mozjs::MozJSImplScope* scope, JSContext* cx, JS::CallArgs args) final;
using EncryptionCallbacks::trace;
void trace(JSTracer* trc) final;
using DBClientBase::query;
std::unique_ptr<DBClientCursor> query(
const NamespaceStringOrUUID& nsOrUuid,
Query query,
int nToReturn,
int nToSkip,
const BSONObj* fieldsToReturn,
int queryOptions,
int batchSize,
boost::optional<BSONObj> readConcernObj = boost::none) final;
bool isFailed() const final;
bool isStillConnected() final;
ConnectionString::ConnectionType type() const final;
double getSoTimeout() const final;
bool isReplicaSetMember() const final;
bool isMongos() const final;
#ifdef MONGO_CONFIG_SSL
const SSLConfiguration* getSSLConfiguration() override;
bool isTLS() final;
#endif
protected:
std::pair<rpc::UniqueReply, DBClientBase*> processResponse(rpc::UniqueReply result,
const StringData databaseName);
BSONObj encryptDecryptCommand(const BSONObj& object,
bool encrypt,
const StringData databaseName);
JS::Value getCollection() const;
BSONObj validateBSONElement(ConstDataRange out, uint8_t bsonType);
NamespaceString getCollectionNS();
std::shared_ptr<SymmetricKey> getDataKey(const UUID& uuid);
FLEEncryptionFrame createEncryptionFrame(std::shared_ptr<SymmetricKey> key,
FleAlgorithmInt algorithm,
UUID uuid,
BSONType type,
ConstDataRange plaintext);
FLEDecryptionFrame createDecryptionFrame(ConstDataRange data);
private:
virtual void encryptMarking(const BSONObj& elem, BSONObjBuilder* builder, StringData elemName);
void decryptPayload(ConstDataRange data, BSONObjBuilder* builder, StringData elemName);
std::vector<uint8_t> getBinDataArg(mozjs::MozJSImplScope* scope,
JSContext* cx,
JS::CallArgs args,
int index,
BinDataType type);
std::shared_ptr<SymmetricKey> getDataKeyFromDisk(const UUID& uuid);
protected:
std::unique_ptr<DBClientBase> _conn;
ClientSideFLEOptions _encryptionOptions;
private:
LRUCache<UUID, std::pair<std::shared_ptr<SymmetricKey>, Date_t>, UUID::Hash> _datakeyCache{
kEncryptedDBCacheSize};
JS::Heap<JS::Value> _collection;
JSContext* _cx;
};
using ImplicitEncryptedDBClientCallback =
std::unique_ptr<DBClientBase>(std::unique_ptr<DBClientBase> conn,
ClientSideFLEOptions encryptionOptions,
JS::HandleValue collection,
JSContext* cx);
void setImplicitEncryptedDBClientCallback(ImplicitEncryptedDBClientCallback* callback);
} // namespace mongo
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