mirror of https://github.com/vitalif/zbackup
98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
// Copyright (c) 2012-2013 Konstantin Isakov <ikm@zbackup.org>
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// Part of ZBackup. Licensed under GNU GPLv2 or later
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#ifndef ZBACKUP_HH_INCLUDED__
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#define ZBACKUP_HH_INCLUDED__
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#include <stddef.h>
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#include <exception>
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#include <string>
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#include <vector>
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#include "chunk_id.hh"
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#include "chunk_index.hh"
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#include "chunk_storage.hh"
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#include "encryption_key.hh"
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#include "ex.hh"
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#include "tmp_mgr.hh"
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#include "zbackup.pb.h"
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using std::string;
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using std::vector;
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struct Paths
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{
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string storageDir;
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Paths( string const & storageDir );
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string getTmpPath();
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string getRestorePath();
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string getCreatePath();
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string getBundlesPath();
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string getStorageInfoPath();
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string getIndexPath();
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string getBackupsPath();
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};
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class ZBackupBase: protected Paths
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{
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public:
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DEF_EX( Ex, "ZBackup exception", std::exception )
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DEF_EX_STR( exWontOverwrite, "Won't overwrite existing file", Ex )
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DEF_EX( exStdinError, "Error reading from standard input", Ex )
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DEF_EX( exWontReadFromTerminal, "Won't read data from a terminal", exStdinError )
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DEF_EX( exStdoutError, "Error writing to standard output", Ex )
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DEF_EX( exWontWriteToTerminal, "Won't write data to a terminal", exStdoutError )
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DEF_EX( exSerializeError, "Failed to serialize data", Ex )
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DEF_EX( exParseError, "Failed to parse data", Ex )
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DEF_EX( exChecksumError, "Checksum error", Ex )
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DEF_EX_STR( exCantDeriveStorageDir, "The path must be within the backups/ dir:", Ex )
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/// Opens the storage
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ZBackupBase( string const & storageDir, string const & password );
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/// Creates new storage
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static void initStorage( string const & storageDir, string const & password,
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bool isEncrypted );
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/// For a given file within the backups/ dir in the storage, returns its
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/// storage dir or throws an exception
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static string deriveStorageDirFromBackupsFile( string const & backupsFile );
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protected:
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StorageInfo storageInfo;
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EncryptionKey encryptionkey;
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TmpMgr tmpMgr;
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ChunkIndex chunkIndex;
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private:
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StorageInfo loadStorageInfo();
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};
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class ZBackup: public ZBackupBase
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{
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ChunkStorage::Writer chunkStorageWriter;
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public:
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ZBackup( string const & storageDir, string const & password,
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size_t threads );
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/// Backs up the data from stdin
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void backupFromStdin( string const & outputFileName );
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};
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class ZRestore: public ZBackupBase
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{
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ChunkStorage::Reader chunkStorageReader;
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public:
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ZRestore( string const & storageDir, string const & password,
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size_t cacheSize );
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/// Restores the data to stdin
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void restoreToStdin( string const & inputFileName );
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};
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#endif
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