gestire eccezione in caso di open file fallita

[todo]

BackupSoftwareServer/Session.cpp

Lines 241 to 246 in 1d6d53b

	// todo: gestire eccezione in caso di open file fallita
	// avvio la callback ricorsiva
	this->getFileR(self, sfp, file_ptr, filePath, 0);
	}

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This issue was generated by todo based on a todo comment in 1d6d53b when #45 was merged. cc @stelosca96.