RetroShare/libretroshare/src/retroshare/rsfiles.h

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/*******************************************************************************
* libretroshare/src/retroshare: rsfiles.h *
* *
* libretroshare: retroshare core library *
* *
* Copyright 2008-2008 by Robert Fernie <retroshare@lunamutt.com> *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* 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 *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this program. If not, see <https://www.gnu.org/licenses/>. *
* *
*******************************************************************************/
#pragma once
#include <list>
#include <iostream>
#include <string>
#include <functional>
#include <chrono>
#include <cstdint>
#include "rstypes.h"
#include "serialiser/rsserializable.h"
#include "rsturtle.h"
#include "util/rstime.h"
class RsFiles;
/**
* Pointer to global instance of RsFiles service implementation
* @jsonapi{development}
*/
extern RsFiles* rsFiles;
namespace RsRegularExpression { class Expression; }
/* These are used mainly by ftController at the moment */
const uint32_t RS_FILE_CTRL_PAUSE = 0x00000100;
const uint32_t RS_FILE_CTRL_START = 0x00000200;
const uint32_t RS_FILE_CTRL_FORCE_CHECK = 0x00000400;
const uint32_t RS_FILE_CTRL_ENCRYPTION_POLICY_STRICT = 0x00000001 ;
const uint32_t RS_FILE_CTRL_ENCRYPTION_POLICY_PERMISSIVE = 0x00000002 ;
const uint32_t RS_FILE_PERM_DIRECT_DL_YES = 0x00000001 ;
const uint32_t RS_FILE_PERM_DIRECT_DL_NO = 0x00000002 ;
const uint32_t RS_FILE_PERM_DIRECT_DL_PER_USER = 0x00000003 ;
const uint32_t RS_FILE_RATE_TRICKLE = 0x00000001;
const uint32_t RS_FILE_RATE_SLOW = 0x00000002;
const uint32_t RS_FILE_RATE_STANDARD = 0x00000003;
const uint32_t RS_FILE_RATE_FAST = 0x00000004;
const uint32_t RS_FILE_RATE_STREAM_AUDIO = 0x00000005;
const uint32_t RS_FILE_RATE_STREAM_VIDEO = 0x00000006;
const uint32_t RS_FILE_PEER_ONLINE = 0x00001000;
const uint32_t RS_FILE_PEER_OFFLINE = 0x00002000;
const uint32_t RS_FILE_SHARE_FLAGS_IGNORE_PREFIXES = 0x0001 ;
const uint32_t RS_FILE_SHARE_FLAGS_IGNORE_SUFFIXES = 0x0002 ;
const uint32_t RS_FILE_SHARE_FLAGS_IGNORE_DUPLICATES = 0x0004 ;
const uint32_t RS_FILE_SHARE_PARAMETER_DEFAULT_MAXIMUM_DEPTH = 8;
/************************************
* Used To indicate where to search.
*
* The Order of these is very important,
* it specifies the search order too.
*
*/
// Flags used when requesting info about transfers, mostly to filter out the result.
//
const FileSearchFlags RS_FILE_HINTS_CACHE_deprecated ( 0x00000001 );
const FileSearchFlags RS_FILE_HINTS_EXTRA ( 0x00000002 );
const FileSearchFlags RS_FILE_HINTS_LOCAL ( 0x00000004 );
const FileSearchFlags RS_FILE_HINTS_REMOTE ( 0x00000008 );
const FileSearchFlags RS_FILE_HINTS_DOWNLOAD ( 0x00000010 );
const FileSearchFlags RS_FILE_HINTS_UPLOAD ( 0x00000020 );
const FileSearchFlags RS_FILE_HINTS_SPEC_ONLY ( 0x01000000 );
const FileSearchFlags RS_FILE_HINTS_NETWORK_WIDE ( 0x00000080 );// can be downloaded anonymously
const FileSearchFlags RS_FILE_HINTS_BROWSABLE ( 0x00000100 );// browsable by friends
const FileSearchFlags RS_FILE_HINTS_SEARCHABLE ( 0x00000200 );// can be searched anonymously
const FileSearchFlags RS_FILE_HINTS_PERMISSION_MASK ( 0x00000380 );// OR of the last tree flags. Used to filter out.
// Flags used when requesting a transfer
//
const TransferRequestFlags RS_FILE_REQ_ANONYMOUS_ROUTING ( 0x00000040 ); // Use to ask turtle router to download the file.
const TransferRequestFlags RS_FILE_REQ_ENCRYPTED ( 0x00000080 ); // Asks for end-to-end encryption of file at the level of ftServer
const TransferRequestFlags RS_FILE_REQ_UNENCRYPTED ( 0x00000100 ); // Asks for no end-to-end encryption of file at the level of ftServer
const TransferRequestFlags RS_FILE_REQ_ASSUME_AVAILABILITY ( 0x00000200 ); // Assume full source availability. Used for cache files.
const TransferRequestFlags RS_FILE_REQ_CACHE_deprecated ( 0x00000400 ); // Old stuff used for cache files. Not used anymore.
const TransferRequestFlags RS_FILE_REQ_EXTRA ( 0x00000800 );
const TransferRequestFlags RS_FILE_REQ_MEDIA ( 0x00001000 );
const TransferRequestFlags RS_FILE_REQ_BACKGROUND ( 0x00002000 ); // To download slowly.
const TransferRequestFlags RS_FILE_REQ_NO_SEARCH ( 0x02000000 ); // disable searching for potential direct sources.
// const uint32_t RS_FILE_HINTS_SHARE_FLAGS_MASK = RS_FILE_HINTS_NETWORK_WIDE_OTHERS | RS_FILE_HINTS_BROWSABLE_OTHERS
// | RS_FILE_HINTS_NETWORK_WIDE_GROUPS | RS_FILE_HINTS_BROWSABLE_GROUPS ;
/* Callback Codes */
const uint32_t RS_FILE_EXTRA_DELETE = 0x0010;
struct SharedDirInfo : RsSerializable
{
static bool sameLists(const std::list<RsNodeGroupId>& l1,const std::list<RsNodeGroupId>& l2)
{
std::list<RsNodeGroupId>::const_iterator it1(l1.begin()) ;
std::list<RsNodeGroupId>::const_iterator it2(l2.begin()) ;
for(; (it1!=l1.end() && it2!=l2.end());++it1,++it2)
if(*it1 != *it2)
return false ;
return it1 == l1.end() && it2 == l2.end() ;
}
std::string filename;
std::string virtualname;
/// combnation of DIR_FLAGS_ANONYMOUS_DOWNLOAD | DIR_FLAGS_BROWSABLE | ...
FileStorageFlags shareflags;
std::list<RsNodeGroupId> parent_groups;
/// @see RsSerializable::serial_process
virtual void serial_process(RsGenericSerializer::SerializeJob j,
RsGenericSerializer::SerializeContext& ctx)
{
RS_SERIAL_PROCESS(filename);
RS_SERIAL_PROCESS(virtualname);
RS_SERIAL_PROCESS(shareflags);
RS_SERIAL_PROCESS(parent_groups);
}
};
struct SharedDirStats
{
uint32_t total_number_of_files ;
uint64_t total_shared_size ;
};
// This class represents a tree of directories and files, only with their names size and hash. It is used to create collection links in the GUI
// and to transmit directory information between services. This class is independent from the existing FileHierarchy classes used in storage because
// we need a very copact serialization and storage size since we create links with it. Besides, we cannot afford to risk the leak of other local information
// by using the orignal classes.
class FileTree
{
public:
virtual ~FileTree() {}
static FileTree *create(const DirDetails& dd, bool remote, bool remove_top_dirs = true) ;
static FileTree *create(const std::string& radix64_string) ;
virtual std::string toRadix64() const =0 ;
// These methods allow the user to browse the hierarchy
struct FileData {
std::string name ;
uint64_t size ;
RsFileHash hash ;
};
virtual uint32_t root() const { return 0;}
virtual bool getDirectoryContent(uint32_t index,std::string& name,std::vector<uint32_t>& subdirs,std::vector<FileData>& subfiles) const = 0;
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virtual void print() const=0;
uint32_t mTotalFiles ;
uint64_t mTotalSize ;
};
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struct BannedFileEntry : RsSerializable
{
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BannedFileEntry() : mFilename(""), mSize(0), mBanTimeStamp(0) {}
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std::string mFilename;
uint64_t mSize;
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rstime_t mBanTimeStamp;
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/// @see RsSerializable::serial_process
virtual void serial_process(RsGenericSerializer::SerializeJob j,
RsGenericSerializer::SerializeContext& ctx)
{
RS_SERIAL_PROCESS(mFilename);
RS_SERIAL_PROCESS(mSize);
RS_SERIAL_PROCESS(mBanTimeStamp);
}
};
class RsFiles
{
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public:
RsFiles() {}
virtual ~RsFiles() {}
/**
* Provides file data for the gui, media streaming or rpc clients.
* It may return unverified chunks. This allows streaming without having to
* wait for hashes or completion of the file.
* This function returns an unspecified amount of bytes. Either as much data
* as available or a sensible maximum. Expect a block size of around 1MiB.
* To get more data, call this function repeatedly with different offsets.
*
* @jsonapi{development,manualwrapper}
* note the missing @ the wrapper for this is written manually not
* autogenerated @see JsonApiServer.
*
* @param[in] hash hash of the file. The file has to be available on this node
* or it has to be in downloading state.
* @param[in] offset where the desired block starts
* @param[inout] requested_size size of pre-allocated data. Will be updated
* by the function.
* @param data pre-allocated memory chunk of size 'requested_size' by the
* client
* @return Returns false in case
* - the files is not available on the local node
* - not downloading
* - the requested data was not downloaded yet
* - end of file was reached
*/
virtual bool getFileData( const RsFileHash& hash, uint64_t offset,
uint32_t& requested_size, uint8_t* data ) = 0;
/**
* @brief Check if we already have a file
* @jsonapi{development}
* @param[in] hash file identifier
* @param[out] info storage for the possibly found file information
* @return true if the file is already present, false otherwise
*/
virtual bool alreadyHaveFile(const RsFileHash& hash, FileInfo &info) = 0;
/**
* @brief Initiate downloading of a file
* @jsonapi{development}
* @param[in] fileName
* @param[in] hash
* @param[in] size
* @param[in] destPath in not empty specify a destination path
* @param[in] flags you usually want RS_FILE_REQ_ANONYMOUS_ROUTING
* @param[in] srcIds eventually specify known sources
* @return false if we already have the file, true otherwhise
*/
virtual bool FileRequest(
const std::string& fileName, const RsFileHash& hash, uint64_t size,
const std::string& destPath, TransferRequestFlags flags,
const std::list<RsPeerId>& srcIds ) = 0;
/**
* @brief Cancel file downloading
* @jsonapi{development}
* @param[in] hash
* @return false if the file is not in the download queue, true otherwhise
*/
virtual bool FileCancel(const RsFileHash& hash) = 0;
/**
* @brief Set destination directory for given file
* @jsonapi{development}
* @param[in] hash file identifier
* @param[in] newPath
* @return false if some error occurred, true otherwise
*/
virtual bool setDestinationDirectory(
const RsFileHash& hash, const std::string& newPath ) = 0;
/**
* @brief Set name for dowloaded file
* @jsonapi{development}
* @param[in] hash file identifier
* @param[in] newName
* @return false if some error occurred, true otherwise
*/
virtual bool setDestinationName(
const RsFileHash& hash, const std::string& newName ) = 0;
/**
* @brief Set chunk strategy for file, useful to set streaming mode to be
* able of see video or other media preview while it is still downloading
* @jsonapi{development}
* @param[in] hash file identifier
* @param[in] newStrategy
* @return false if some error occurred, true otherwise
*/
virtual bool setChunkStrategy(
const RsFileHash& hash,
FileChunksInfo::ChunkStrategy newStrategy ) = 0;
/**
* @brief Set default chunk strategy
* @jsonapi{development}
* @param[in] strategy
*/
virtual void setDefaultChunkStrategy(
FileChunksInfo::ChunkStrategy strategy ) = 0;
/**
* @brief Get default chunk strategy
* @jsonapi{development}
* @return current default chunck strategy
*/
virtual FileChunksInfo::ChunkStrategy defaultChunkStrategy() = 0;
/**
* @brief Get free disk space limit
* @jsonapi{development}
* @return current current minimum free space on disk in MB
*/
virtual uint32_t freeDiskSpaceLimit() const = 0;
/**
* @brief Set minimum free disk space limit
* @jsonapi{development}
* @param[in] minimumFreeMB minimum free space in MB
*/
virtual void setFreeDiskSpaceLimit(uint32_t minimumFreeMB) = 0;
virtual bool FileControl(const RsFileHash& hash, uint32_t flags) = 0;
virtual bool FileClearCompleted() = 0;
virtual void setDefaultEncryptionPolicy(uint32_t policy)=0; // RS_FILE_CTRL_ENCRYPTION_POLICY_STRICT/PERMISSIVE
virtual uint32_t defaultEncryptionPolicy()=0;
virtual void setMaxUploadSlotsPerFriend(uint32_t n)=0;
virtual uint32_t getMaxUploadSlotsPerFriend()=0;
virtual void setFilePermDirectDL(uint32_t perm)=0;
virtual uint32_t filePermDirectDL()=0;
/**
* @brief Request remote files search
* @jsonapi{development}
* @param[in] matchString string to look for in the search
* @param multiCallback function that will be called each time a search
* result is received
* @param[in] maxWait maximum wait time in seconds for search results
* @return false on error, true otherwise
*/
virtual bool turtleSearchRequest(
const std::string& matchString,
const std::function<void (const std::list<TurtleFileInfo>& results)>& multiCallback,
rstime_t maxWait = 300 ) = 0;
virtual TurtleRequestId turtleSearch(const std::string& string_to_match) = 0;
virtual TurtleRequestId turtleSearch(
const RsRegularExpression::LinearizedExpression& expr) = 0;
/***
* Control of Downloads Priority.
***/
virtual uint32_t getQueueSize() = 0 ;
virtual void setQueueSize(uint32_t s) = 0 ;
virtual bool changeQueuePosition(const RsFileHash& hash, QueueMove mv) = 0;
virtual bool changeDownloadSpeed(const RsFileHash& hash, int speed) = 0;
virtual bool getDownloadSpeed(const RsFileHash& hash, int & speed) = 0;
virtual bool clearDownload(const RsFileHash& hash) = 0;
/**
* @brief Get incoming files list
* @jsonapi{development}
* @param[out] hashs storage for files identifiers list
*/
virtual void FileDownloads(std::list<RsFileHash>& hashs) = 0;
/**
* @brief Get outgoing files list
* @jsonapi{development}
* @param[out] hashs storage for files identifiers list
* @return false if some error occurred, true otherwise
*/
virtual bool FileUploads(std::list<RsFileHash>& hashs) = 0;
/**
* @brief Get file details
* @jsonapi{development}
* @param[in] hash file identifier
* @param[in] hintflags filtering hint (RS_FILE_HINTS_EXTRA|...|RS_FILE_HINTS_LOCAL)
* @param[out] info storage for file information
* @return true if file found, false otherwise
*/
virtual bool FileDetails(
const RsFileHash &hash, FileSearchFlags hintflags, FileInfo& info ) = 0;
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virtual bool isEncryptedSource(const RsPeerId& virtual_peer_id) =0;
/**
* @brief Get chunk details about the downloaded file with given hash.
* @jsonapi{development}
* @param[in] hash file identifier
* @param[out] info storage for file information
* @return true if file found, false otherwise
*/
virtual bool FileDownloadChunksDetails(
const RsFileHash& hash, FileChunksInfo& info) = 0;
/**
* @brief Get details about the upload with given hash
* @jsonapi{development}
* @param[in] hash file identifier
* @param[in] peer_id peer identifier
* @param[out] map storage for chunk info
* @return true if file found, false otherwise
*/
virtual bool FileUploadChunksDetails(
const RsFileHash& hash, const RsPeerId& peer_id,
CompressedChunkMap& map ) = 0;
/***
* Extra List Access
***/
//virtual bool ExtraFileAdd(std::string fname, std::string hash, uint64_t size, uint32_t period, TransferRequestFlags flags) = 0;
virtual bool ExtraFileRemove(const RsFileHash& hash) = 0;
virtual bool ExtraFileHash(std::string localpath, uint32_t period, TransferRequestFlags flags) = 0;
virtual bool ExtraFileStatus(std::string localpath, FileInfo &info) = 0;
virtual bool ExtraFileMove(std::string fname, const RsFileHash& hash, uint64_t size, std::string destpath) = 0;
/**
* @brief Request directory details, subsequent multiple call may be used to
* explore a whole directory tree.
* @jsonapi{development}
* @param[out] details Storage for directory details
* @param[in] handle element handle 0 for root, pass the content of
* DirDetails::child[x].ref after first call to explore deeper, be aware
* that is not a real pointer but an index used internally by RetroShare.
* @param[in] flags file search flags RS_FILE_HINTS_*
* @return false if error occurred, true otherwise
*/
virtual bool requestDirDetails(
DirDetails &details, std::uintptr_t handle = 0,
FileSearchFlags flags = RS_FILE_HINTS_LOCAL ) = 0;
/***
* Directory Listing / Search Interface
*/
/**
* Kept for retrocompatibility, it was originally written for easier
* interaction with Qt. As soon as you can, you should prefer to use the
* version of this methodn which take `std::uintptr_t handle` as paramether.
*/
virtual int RequestDirDetails(
void* handle, DirDetails& details, FileSearchFlags flags ) = 0;
virtual bool findChildPointer(void *ref, int row, void *& result, FileSearchFlags flags) =0;
virtual uint32_t getType(void *ref,FileSearchFlags flags) = 0;
virtual int SearchKeywords(std::list<std::string> keywords, std::list<DirDetails> &results,FileSearchFlags flags) = 0;
virtual int SearchKeywords(std::list<std::string> keywords, std::list<DirDetails> &results,FileSearchFlags flags,const RsPeerId& peer_id) = 0;
virtual int SearchBoolExp(RsRegularExpression::Expression * exp, std::list<DirDetails> &results,FileSearchFlags flags) = 0;
virtual int SearchBoolExp(RsRegularExpression::Expression * exp, std::list<DirDetails> &results,FileSearchFlags flags,const RsPeerId& peer_id) = 0;
virtual int getSharedDirStatistics(const RsPeerId& pid, SharedDirStats& stats) =0;
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/**
* @brief Ban unwanted file from being, searched and forwarded by this node
* @jsonapi{development}
* @param[in] realFileHash this is what will really enforce banning
* @param[in] filename expected name of the file, for the user to read
* @param[in] fileSize expected file size, for the user to read
* @return meaningless value
*/
virtual int banFile( const RsFileHash& realFileHash,
const std::string& filename, uint64_t fileSize ) = 0;
/**
* @brief Remove file from unwanted list
* @jsonapi{development}
* @param[in] realFileHash hash of the file
* @return meaningless value
*/
virtual int unbanFile(const RsFileHash& realFileHash) = 0;
/**
* @brief Get list of banned files
* @jsonapi{development}
* @param[out] bannedFiles storage for banned files information
* @return meaningless value
*/
virtual bool getPrimaryBannedFilesList(
std::map<RsFileHash,BannedFileEntry>& bannedFiles ) = 0;
/**
* @brief Check if a file is on banned list
* @jsonapi{development}
* @param[in] hash hash of the file
* @return true if the hash is on the list, false otherwise
*/
virtual bool isHashBanned(const RsFileHash& hash) = 0;
/***
* Utility Functions.
***/
virtual bool ConvertSharedFilePath(std::string path, std::string &fullpath) = 0;
/**
* @brief Force shared directories check
* @jsonapi{development}
*/
virtual void ForceDirectoryCheck() = 0;
virtual void updateSinceGroupPermissionsChanged() = 0;
virtual bool InDirectoryCheck() = 0;
virtual bool copyFile(const std::string& source,const std::string& dest) = 0;
/***
* Directory Control
***/
virtual void requestDirUpdate(void *ref) =0 ; // triggers the update of the given reference. Used when browsing.
/**
* @brief Set default complete downloads directory
* @jsonapi{development}
* @param[in] path directory path
* @return false if something failed, true otherwhise
*/
virtual bool setDownloadDirectory(const std::string& path) = 0;
/**
* @brief Set partial downloads directory
* @jsonapi{development}
* @param[in] path directory path
* @return false if something failed, true otherwhise
*/
virtual bool setPartialsDirectory(const std::string& path) = 0;
/**
* @brief Get default complete downloads directory
* @jsonapi{development}
* @return default completed downloads directory path
*/
virtual std::string getDownloadDirectory() = 0;
/**
* @brief Get partial downloads directory
* @jsonapi{development}
* @return partials downloads directory path
*/
virtual std::string getPartialsDirectory() = 0;
/**
* @brief Get list of current shared directories
* @jsonapi{development}
* @param[out] dirs storage for the list of share directories
* @return false if something failed, true otherwhise
*/
virtual bool getSharedDirectories(std::list<SharedDirInfo>& dirs) = 0;
/**
* @brief Set shared directories
* @jsonapi{development}
* @param[in] dirs list of shared directories with share options
* @return false if something failed, true otherwhise
*/
virtual bool setSharedDirectories(const std::list<SharedDirInfo>& dirs) = 0;
/**
* @brief Add shared directory
* @jsonapi{development}
* @param[in] dir directory to share with sharing options
* @return false if something failed, true otherwhise
*/
virtual bool addSharedDirectory(const SharedDirInfo& dir) = 0;
/**
* @brief Updates shared directory sharing flags.
* The directory should be already shared!
* @jsonapi{development}
* @param[in] dir Shared directory with updated sharing options
* @return false if something failed, true otherwhise
*/
virtual bool updateShareFlags(const SharedDirInfo& dir) = 0;
/**
* @brief Remove directory from shared list
* @jsonapi{development}
* @param[in] dir Path of the directory to remove from shared list
* @return false if something failed, true otherwhise
*/
virtual bool removeSharedDirectory(std::string dir) = 0;
virtual bool getIgnoreLists(std::list<std::string>& ignored_prefixes, std::list<std::string>& ignored_suffixes,uint32_t& flags) =0;
virtual void setIgnoreLists(const std::list<std::string>& ignored_prefixes, const std::list<std::string>& ignored_suffixes,uint32_t flags) =0;
virtual void setWatchPeriod(int minutes) =0;
virtual void setWatchEnabled(bool b) =0;
virtual int watchPeriod() const =0;
virtual bool watchEnabled() =0;
virtual bool followSymLinks() const=0;
virtual void setFollowSymLinks(bool b)=0 ;
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virtual void togglePauseHashingProcess() =0; // pauses/resumes the hashing process.
virtual bool hashingProcessPaused() =0;
virtual bool getShareDownloadDirectory() = 0;
virtual bool shareDownloadDirectory(bool share) = 0;
virtual void setMaxShareDepth(int depth) =0;
virtual int maxShareDepth() const=0;
virtual bool ignoreDuplicates() = 0;
virtual void setIgnoreDuplicates(bool ignore) = 0;
};