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moved encrypted data output/input to FileListIO

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This commit is contained in:
mr-alice 2016-09-03 18:46:03 +02:00
parent 371171fcbb
commit 5b221c56db
4 changed files with 107 additions and 75 deletions
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88
libretroshare/src/file_sharing/filelist_io.cc
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@ -1,4 +1,6 @@
#include "retroshare/rsids.h"
#include "pqi/authssl.h"
#include "util/rsdir.h"
#include "serialiser/rsbaseserial.h"
#include "filelist_io.h"
@ -116,3 +118,89 @@ bool FileListIO::read125Size(const unsigned char *data,uint32_t data_size,uint32
return true;
}
bool FileListIO::saveEncryptedDataToFile(const std::string& fname,const unsigned char *data,uint32_t total_size)
{
void *encryptedData = NULL ;
int encDataLen = 0 ;
if(!AuthSSL::getAuthSSL()->encrypt( encryptedData, encDataLen, data,total_size, AuthSSL::getAuthSSL()->OwnId()))
{
std::cerr << "Cannot encrypt hash cache. Something's wrong." << std::endl;
return false;
}
FILE *F = fopen( (fname+".tmp").c_str(),"wb" ) ;
if(!F)
{
std::cerr << "Cannot open encrypted file cache for writing: " << fname+".tmp" << std::endl;
free(encryptedData);
return false;
}
if(fwrite(encryptedData,1,encDataLen,F) != (uint32_t)encDataLen)
{
std::cerr << "Could not write entire encrypted hash cache file. Out of disc space??" << std::endl;
fclose(F) ;
free(encryptedData);
return false;
}
fclose(F) ;
RsDirUtil::renameFile(fname+".tmp",fname) ;
#ifdef FIM_DEBUG
std::cerr << "done." << std::endl ;
#endif
free(encryptedData);
return true;
}
bool FileListIO::loadEncryptedDataFromFile(const std::string& fname,unsigned char *& data,uint32_t& total_size)
{
uint64_t file_size ;
if(!RsDirUtil::checkFile( fname,file_size,false ) )
{
std::cerr << "Encrypted hash cache file not present." << std::endl;
return false;
}
// read the binary stream into memory.
//
RsTemporaryMemory buffer(file_size) ;
if(buffer == NULL)
return false;
FILE *F = fopen( fname.c_str(),"rb") ;
if (!F)
{
std::cerr << "Cannot open file for reading encrypted file cache, filename " << fname << std::endl;
return false;
}
if(fread(buffer,1,file_size,F) != file_size)
{
std::cerr << "Cannot read from file " + fname << ": something's wrong." << std::endl;
fclose(F) ;
return false;
}
fclose(F) ;
// now decrypt
void *decrypted_data =NULL;
int decrypted_data_size =0;
if(!AuthSSL::getAuthSSL()->decrypt(decrypted_data, decrypted_data_size, buffer, file_size))
{
std::cerr << "Cannot decrypt encrypted file cache. Something's wrong." << std::endl;
return false;
}
data = (unsigned char*)decrypted_data ;
total_size = decrypted_data_size ;
return true;
}