153 lines
4.5 KiB
C++
153 lines
4.5 KiB
C++
// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "core_io.h"
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#include "primitives/block.h"
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#include "primitives/transaction.h"
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#include "script/script.h"
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#include "serialize.h"
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#include "streams.h"
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#include "univalue/univalue.h"
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#include "util.h"
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#include "utilstrencodings.h"
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#include "version.h"
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#include <boost/algorithm/string/classification.hpp>
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#include <boost/algorithm/string/predicate.hpp>
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#include <boost/algorithm/string/replace.hpp>
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#include <boost/algorithm/string/split.hpp>
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#include <boost/assign/list_of.hpp>
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using namespace std;
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CScript ParseScript(std::string s)
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{
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CScript result;
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static map<string, opcodetype> mapOpNames;
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if (mapOpNames.empty())
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{
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for (int op = 0; op <= OP_NOP10; op++)
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{
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// Allow OP_RESERVED to get into mapOpNames
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if (op < OP_NOP && op != OP_RESERVED)
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continue;
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const char* name = GetOpName((opcodetype)op);
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if (strcmp(name, "OP_UNKNOWN") == 0)
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continue;
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string strName(name);
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mapOpNames[strName] = (opcodetype)op;
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// Convenience: OP_ADD and just ADD are both recognized:
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boost::algorithm::replace_first(strName, "OP_", "");
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mapOpNames[strName] = (opcodetype)op;
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}
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}
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vector<string> words;
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boost::algorithm::split(words, s, boost::algorithm::is_any_of(" \t\n"), boost::algorithm::token_compress_on);
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for (std::vector<std::string>::const_iterator w = words.begin(); w != words.end(); ++w)
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{
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if (w->empty())
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{
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// Empty string, ignore. (boost::split given '' will return one word)
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}
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else if (all(*w, boost::algorithm::is_digit()) ||
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(boost::algorithm::starts_with(*w, "-") && all(string(w->begin()+1, w->end()), boost::algorithm::is_digit())))
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{
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// Number
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int64_t n = atoi64(*w);
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result << n;
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}
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else if (boost::algorithm::starts_with(*w, "0x") && (w->begin()+2 != w->end()) && IsHex(string(w->begin()+2, w->end())))
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{
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// Raw hex data, inserted NOT pushed onto stack:
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std::vector<unsigned char> raw = ParseHex(string(w->begin()+2, w->end()));
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result.insert(result.end(), raw.begin(), raw.end());
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}
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else if (w->size() >= 2 && boost::algorithm::starts_with(*w, "'") && boost::algorithm::ends_with(*w, "'"))
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{
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// Single-quoted string, pushed as data. NOTE: this is poor-man's
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// parsing, spaces/tabs/newlines in single-quoted strings won't work.
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std::vector<unsigned char> value(w->begin()+1, w->end()-1);
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result << value;
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}
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else if (mapOpNames.count(*w))
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{
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// opcode, e.g. OP_ADD or ADD:
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result << mapOpNames[*w];
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}
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else
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{
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throw runtime_error("script parse error");
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}
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}
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return result;
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}
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bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx)
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{
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if (!IsHex(strHexTx))
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return false;
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vector<unsigned char> txData(ParseHex(strHexTx));
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CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION);
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try {
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ssData >> tx;
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}
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catch (const std::exception&) {
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return false;
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}
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return true;
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}
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bool DecodeHexBlk(CBlock& block, const std::string& strHexBlk)
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{
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if (!IsHex(strHexBlk))
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return false;
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std::vector<unsigned char> blockData(ParseHex(strHexBlk));
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CDataStream ssBlock(blockData, SER_NETWORK, PROTOCOL_VERSION);
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try {
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ssBlock >> block;
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}
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catch (const std::exception&) {
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return false;
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}
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return true;
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}
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uint256 ParseHashUV(const UniValue& v, const string& strName)
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{
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string strHex;
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if (v.isStr())
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strHex = v.getValStr();
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return ParseHashStr(strHex, strName); // Note: ParseHashStr("") throws a runtime_error
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}
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uint256 ParseHashStr(const std::string& strHex, const std::string& strName)
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{
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if (!IsHex(strHex)) // Note: IsHex("") is false
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throw runtime_error(strName+" must be hexadecimal string (not '"+strHex+"')");
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uint256 result;
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result.SetHex(strHex);
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return result;
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}
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vector<unsigned char> ParseHexUV(const UniValue& v, const string& strName)
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{
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string strHex;
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if (v.isStr())
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strHex = v.getValStr();
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if (!IsHex(strHex))
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throw runtime_error(strName+" must be hexadecimal string (not '"+strHex+"')");
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return ParseHex(strHex);
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}
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