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Implement deep indexing for files through Xapian

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ATM it support extracting metadata only from OGG files.
The system has been designed to be easly extensible to more file formats
  registering more indexer functions which just need to extract metadata
  from a certain type of file and feed it to Xapian.
The system has been integrated into existent file search system to
  through generric search requests and results, it keep a good level of
  retro-compatibility due to some tricks.
The indexing system is released under AGPLv3  so when libretroshare is compiled
  with deep search enabled AGPLv3 must be honored instead of LGPLv3-or-later.
Cleaned up the debian copyright file using non-deprecated license
  code-names.
This commit is contained in:
Gioacchino Mazzurco 2019-06-20 17:24:18 +02:00
parent d46e3eb2b7
commit 3a26ccf6a5
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GPG key ID: A1FBCA3872E87051
25 changed files with 1364 additions and 438 deletions
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44
libretroshare/src/file_sharing/directory_storage.cc
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@ -20,6 +20,7 @@
* *
******************************************************************************/
#include <set>
#include "util/rstime.h"
#include "serialiser/rstlvbinary.h"
#include "retroshare/rspeers.h"
@ -30,6 +31,10 @@
#include "dir_hierarchy.h"
#include "filelist_io.h"
#ifdef RS_DEEP_FILES_INDEX
# include "deep_search/filesindex.hpp"
#endif // def RS_DEEP_FILES_INDEX
//#define DEBUG_REMOTE_DIRECTORY_STORAGE 1
/******************************************************************************************************************/
@ -180,7 +185,9 @@ void DirectoryStorage::print()
mFileHierarchy->print();
}
int DirectoryStorage::searchTerms(const std::list<std::string>& terms, std::list<EntryIndex> &results) const
int DirectoryStorage::searchTerms(
const std::list<std::string>& terms,
std::list<EntryIndex>& results ) const
{
RS_STACK_MUTEX(mDirStorageMtx) ;
return mFileHierarchy->searchTerms(terms,results);
@ -501,18 +508,39 @@ void LocalDirectoryStorage::updateTimeStamps()
#endif
}
}
bool LocalDirectoryStorage::updateHash(const EntryIndex& index, const RsFileHash& hash, bool update_internal_hierarchy)
{
RS_STACK_MUTEX(mDirStorageMtx) ;
mEncryptedHashes[makeEncryptedHash(hash)] = hash ;
mChanged = true ;
bool LocalDirectoryStorage::updateHash(
const EntryIndex& index, const RsFileHash& hash,
bool update_internal_hierarchy )
{
bool ret = false;
{
RS_STACK_MUTEX(mDirStorageMtx);
mEncryptedHashes[makeEncryptedHash(hash)] = hash ;
mChanged = true ;
#ifdef DEBUG_LOCAL_DIRECTORY_STORAGE
std::cerr << "Updating index of hash " << hash << " update_internal=" << update_internal_hierarchy << std::endl;
std::cerr << "Updating index of hash " << hash << " update_internal="
<< update_internal_hierarchy << std::endl;
#endif
return (!update_internal_hierarchy)|| mFileHierarchy->updateHash(index,hash);
ret = (!update_internal_hierarchy) ||
mFileHierarchy->updateHash(index,hash);
} // RS_STACK_MUTEX(mDirStorageMtx);
#ifdef RS_DEEP_FILES_INDEX
FileInfo fInfo;
if( ret && getFileInfo(index, fInfo) &&
fInfo.storage_permission_flags & DIR_FLAGS_ANONYMOUS_SEARCH )
{
DeepFilesIndex dfi(DeepFilesIndex::dbDefaultPath());
ret &= dfi.indexFile(fInfo.path, fInfo.fname, hash);
}
#endif // def RS_DEEP_FILES_INDEX
return ret;
}
std::string LocalDirectoryStorage::locked_findRealRootFromVirtualFilename(const std::string& virtual_rootdir) const
{