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#pragma once
#include "types.hpp"
#include "Key.hpp"
#include "DataView.hpp"
#include "DatabaseStorage.hpp"
#include "Hash.hpp"
#include "utils.hpp"
#include "StagedObject.hpp"
#include "Signature.hpp"
#include "Permission.hpp"
#include "DatabaseNode.hpp"
#include <opendht/dhtrunner.h>
#include <vector>
#include <ntp/NtpClient.hpp>
#include <boost/filesystem/path.hpp>
#include <stdexcept>
namespace odhtdb
{
class User;
class LocalUser;
class Group;
class CommitCreateException : public std::runtime_error
{
public:
CommitCreateException(const std::string &errMsg) : std::runtime_error(errMsg) {}
};
class CommitAddException : public std::runtime_error
{
public:
CommitAddException(const std::string &errMsg) : std::runtime_error(errMsg) {}
};
class DatabaseCreateException : public std::runtime_error
{
public:
DatabaseCreateException(const std::string &errMsg) : std::runtime_error(errMsg) {}
};
class DatabaseAddException : public std::runtime_error
{
public:
DatabaseAddException(const std::string &errMsg) : std::runtime_error(errMsg) {}
};
enum class DatabaseOperation : u8
{
ADD_DATA,
ADD_USER
};
struct DatabaseCreateRequest
{
DISABLE_COPY(DatabaseCreateRequest)
u64 timestamp; // In microseconds
Group *creatorGroup;
std::string name;
DatabaseCreateRequest(u64 _timestamp, Group *_creatorGroup, std::string &&_name) :
timestamp(_timestamp),
creatorGroup(_creatorGroup),
name(std::move(_name))
{
}
DatabaseCreateRequest(DatabaseCreateRequest &&other)
{
timestamp = other.timestamp;
creatorGroup = other.creatorGroup;
name = std::move(other.name);
other.timestamp = 0;
other.creatorGroup = nullptr;
}
};
struct DatabaseAddRequest
{
DISABLE_COPY(DatabaseAddRequest)
u64 timestamp; // In microseconds
const User *creatorUser;
Decryption decryptedData;
DatabaseAddRequest(u64 _timestamp, const User *_creatorUser, Decryption &&_decryptedData) :
timestamp(_timestamp),
creatorUser(_creatorUser),
decryptedData(std::move(_decryptedData))
{
}
DatabaseAddRequest(DatabaseAddRequest &&other)
{
timestamp = other.timestamp;
creatorUser = other.creatorUser;
decryptedData = std::move(other.decryptedData);
other.timestamp = 0;
other.creatorUser = nullptr;
}
};
class DatabaseCreateResponse
{
public:
DatabaseCreateResponse(LocalUser *nodeAdminUser, const std::shared_ptr<char*> &key, const std::shared_ptr<Hash> &hash);
const LocalUser* getNodeAdminUser() const;
const std::shared_ptr<char*> getNodeEncryptionKey() const;
const std::shared_ptr<Hash> getRequestHash() const;
private:
LocalUser *nodeAdminUser;
std::shared_ptr<char*> key;
std::shared_ptr<Hash> hash;
};
class Database
{
public:
Database(const char *bootstrapNodeAddr, u16 port, boost::filesystem::path storageDir);
~Database();
void seed(const std::shared_ptr<Hash> hash, const std::shared_ptr<char*> encryptionKey);
// Throws DatabaseCreateException on failure.
std::unique_ptr<DatabaseCreateResponse> create(const std::string &ownerName, const std::string &nodeName);
// Throws DatabaseAddException on failure
void addData(const DatabaseNode &nodeInfo, LocalUser *userToPerformActionWith, DataView dataToAdd);
// Throws PermissionDeniedException if user @userToPerformActionWith is not allowed to add user @userToAdd to group @groupToAddUserTo
void addUserToGroup(const DatabaseNode &nodeInfo, LocalUser *userToPerformActionWith, const std::string &userToAddName, const Signature::PublicKey &userToAddPublicKey, Group *groupToAddUserTo);
void commit();
private:
// Throws CommitCreateException on failure
void commitStagedCreateObject(const std::unique_ptr<StagedObject> &stagedObject);
// Throws CommitAddException on failure
void commitStagedAddObject(const std::unique_ptr<StagedObject> &stagedObject);
ntp::NtpTimestamp getSyncedTimestampUtc() const;
DatabaseCreateRequest deserializeCreateRequest(const std::shared_ptr<dht::Value> &value, const Hash &hash, const std::shared_ptr<char*> encryptionKey);
void deserializeAddRequest(const std::shared_ptr<dht::Value> &value, const Hash &requestDataHash, const std::shared_ptr<char*> encryptionKey);
bool listenCreateData(std::shared_ptr<dht::Value> value, const Hash &hash, const std::shared_ptr<char*> encryptionKey);
bool listenAddData(std::shared_ptr<dht::Value> value, const Hash &requestDataHash, const std::shared_ptr<char*> encryptionKey);
private:
dht::DhtRunner node;
std::vector<std::unique_ptr<StagedObject>> stagedCreateObjects;
std::vector<std::unique_ptr<StagedObject>> stagedAddObjects;
DatabaseStorage databaseStorage;
};
}
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