Differential D9664 Diff 28858 src/avalanche/delegation.cpp

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src/avalanche/delegation.cpp

	// Copyright (c) 2020 The Bitcoin developers			// Copyright (c) 2020 The Bitcoin developers
	// Distributed under the MIT software license, see the accompanying			// Distributed under the MIT software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.			// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	#include <avalanche/delegation.h>			#include <avalanche/delegation.h>

	#include <avalanche/proof.h>			#include <avalanche/proof.h>
	#include <avalanche/validation.h>			#include <avalanche/validation.h>
	#include <hash.h>			#include <hash.h>
				#include <streams.h>
				#include <util/strencodings.h>
				#include <util/translation.h>

	namespace avalanche {			namespace avalanche {

				bool Delegation::FromHex(Delegation &dg, const std::string &dgHex,
				bilingual_str &errorOut) {
				if (!IsHex(dgHex)) {
				errorOut = _("Delegation must be an hexadecimal string.");
				return false;
				}

				CDataStream ss(ParseHex(dgHex), SER_NETWORK, PROTOCOL_VERSION);

				try {
				ss >> dg;
				} catch (std::exception &e) {
				errorOut = strprintf(_("Delegation has invalid format: %s"), e.what());
				return false;
				}

				return true;
				}

	template <typename L, typename F>			template <typename L, typename F>
	static bool reduceLevels(uint256 &hash, const std::vector<L> &levels, F f) {			static bool reduceLevels(uint256 &hash, const std::vector<L> &levels, F f) {
	for (const auto &l : levels) {			for (const auto &l : levels) {
	CHashWriter ss(SER_GETHASH, 0);			CHashWriter ss(SER_GETHASH, 0);
	ss << hash;			ss << hash;
	ss << l.pubkey;			ss << l.pubkey;
	hash = ss.GetHash();			hash = ss.GetHash();

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