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/*
Copyright (C) 2019-Present SKALE Labs
This file is part of sgxwallet.
sgxwallet is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
sgxwallet 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with sgxwallet. If not, see <https://www.gnu.org/licenses/>.
@file ServerDataChecker.cpp
@author Stan Kladko
@date 2019
*/
#include <vector>
#include "ServerDataChecker.h"
#include <gmp.h>
#include <iostream>
std::vector<std::string> SplitString(const std::string& str, const std::string& delim = ":"){
std::vector<std::string> tokens;
size_t prev = 0, pos = 0;
do {
pos = str.find(delim, prev);
if (pos == std::string::npos) pos = str.length();
std::string token = str.substr(prev, pos-prev);
if (!token.empty()) tokens.push_back(token);
prev = pos + delim.length();
} while (pos < str.length() && prev < str.length());
return tokens;
}
bool checkECDSAKeyName(const std::string& keyName) {
std::vector<std::string> parts = SplitString(keyName);
if (parts.size() != 2) {
std::cerr << "num parts != 2" << std::endl;
return false;
}
if (parts.at(0) != "NEK") {
std::cerr << "key doesn't start from NEK" << std::endl;
return false;
}
if ( parts.at(1).length() > 64 || parts.at(1).length() < 1){
std::cerr << "wrong key length" << std::endl;
return false;
}
mpz_t num;
mpz_init(num);
if ( mpz_set_str(num, parts.at(1).c_str(), 16) == -1){
mpz_clear(num);
return false;
}
mpz_clear(num);
return true;
}
bool checkHex(const std::string& hex, const uint32_t sizeInBytes){
if ( hex.length() > sizeInBytes * 2 || hex.length() == 0){
return false;
}
mpz_t num;
mpz_init(num);
if ( mpz_set_str(num, hex.c_str(), 16) == -1){
mpz_clear(num);
return false;
}
mpz_clear(num);
return true;
}
bool checkName (const std::string& Name, const std::string& prefix){
std::vector<std::string> parts = SplitString(Name);
if ( parts.size() != 7) {
std::cerr << "parts.size() != 7" << std::endl;
return false;
}
if ( parts.at(0) != prefix ) {
std::cerr << "parts.at(0) != prefix" << std::endl;
return false;
}
if ( parts.at(1) != "SCHAIN_ID"){
std::cerr << "parts.at(1) != SCHAIN_ID" << std::endl;
return false;
}
if ( parts.at(3) != "NODE_ID"){
std::cerr << "parts.at(3) != Node_ID" << std::endl;
return false;
}
if ( parts.at(5) != "DKG_ID"){
std::cerr << "parts.at(1) != DKG_ID" << std::endl;
return false;
}
if ( parts.at(2).length() > 78 || parts.at(2).length() < 1){
std::cerr << "parts.at(2).length() > 78" << std::endl;
return false;
}
if (parts.at(4).length() > 5 || parts.at(4).length() < 1){
std::cerr << "parts.at(4).length() > 5" << std::endl;
return false;
}
if ( parts.at(6).length() > 78 || parts.at(6).length() < 1){
std::cerr << "parts.at(6).length() > 78" << std::endl;
return false;
}
mpz_t num;
mpz_init(num);
if ( mpz_set_str(num, parts.at(2).c_str(), 10) == -1){
mpz_clear(num);
std::cerr << "parts.at(2) not num" << std::endl;
return false;
}
mpz_clear(num);
mpz_init(num);
if ( mpz_set_str(num, parts.at(4).c_str(), 10) == -1){
mpz_clear(num);
std::cerr << "parts.at(4) not num" << std::endl;
return false;
}
mpz_clear(num);
mpz_init(num);
if ( mpz_set_str(num, parts.at(6).c_str(),10) == -1){
mpz_clear(num);
std::cerr << "parts.at(6) not num" << std::endl;
return false;
}
mpz_clear(num);
return true;
}
bool check_n_t ( const int t, const int n){
if (t > n){
return false;
}
if ( t == 0 || n == 0){
return false;
}
if (n > 32){
return false;
}
if ( t < 0 || n < 0){
return false;
}
return true;
}