mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
80 lines
1.9 KiB
C++
80 lines
1.9 KiB
C++
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/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @date 2017
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* Metadata processing helpers.
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*/
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#include <string>
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#include <iostream>
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#include <libdevcore/JSON.h>
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using namespace std;
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namespace dev
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{
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namespace test
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{
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string bytecodeSansMetadata(string const& _bytecode)
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{
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/// The metadata hash takes up 43 bytes (or 86 characters in hex)
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/// /a165627a7a72305820([0-9a-f]{64})0029$/
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if (_bytecode.size() < 88)
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return _bytecode;
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if (_bytecode.substr(_bytecode.size() - 4, 4) != "0029")
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return _bytecode;
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if (_bytecode.substr(_bytecode.size() - 86, 18) != "a165627a7a72305820")
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return _bytecode;
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return _bytecode.substr(0, _bytecode.size() - 86);
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}
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bool isValidMetadata(string const& _metadata)
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{
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Json::Value metadata;
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if (!Json::Reader().parse(_metadata, metadata, false))
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return false;
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if (
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!metadata.isObject() ||
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!metadata.isMember("version") ||
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!metadata.isMember("language") ||
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!metadata.isMember("compiler") ||
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!metadata.isMember("settings") ||
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!metadata.isMember("sources") ||
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!metadata.isMember("output")
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)
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return false;
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if (!metadata["version"].isNumeric() || metadata["version"] != 1)
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return false;
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if (!metadata["language"].isString() || metadata["language"].asString() != "Solidity")
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return false;
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/// @TODO add more strict checks
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return true;
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}
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}
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} // end namespaces
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