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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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#include <assert.h>
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#include <cryptoconditions.h>
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#include "primitives/block.h"
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#include "primitives/transaction.h"
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#include "script/cc.h"
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#include "cc/eval.h"
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#include "cc/utils.h"
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#include "cc/CCinclude.h"
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#include "main.h"
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#include "chain.h"
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#include "core_io.h"
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#include "crosschain.h"
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#define FAUCET2SIZE COIN
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#define EVAL_FAUCET2 EVAL_FIRSTUSER
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#define EVAL_SUDOKU 17
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std::string MYCCLIBNAME = (char *)"sudoku";
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char *CClib_name() { return((char *)MYCCLIBNAME.c_str()); }
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struct CClib_rpcinfo
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{
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char *CCname,*method,*help;
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int32_t numrequiredargs,maxargs; // frontloaded with required
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uint8_t funcid,evalcode;
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}
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CClib_methods[] =
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{
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{ (char *)"faucet2", (char *)"fund", (char *)"amount", 1, 1, 'F', EVAL_FAUCET2 },
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{ (char *)"faucet2", (char *)"get", (char *)"<no args>", 0, 0, 'G', EVAL_FAUCET2 },
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{ (char *)"sudoku", (char *)"gen", (char *)"amount", 1, 1, 'G', EVAL_SUDOKU },
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{ (char *)"sudoku", (char *)"txidinfo", (char *)"txid", 1, 1, 'T', EVAL_SUDOKU },
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{ (char *)"sudoku", (char *)"pending", (char *)"<no args>", 0, 0, 'U', EVAL_SUDOKU },
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{ (char *)"sudoku", (char *)"solution", (char *)"solution timestamps[]", 2, 2, 'S', EVAL_SUDOKU },
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};
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std::string CClib_rawtxgen(struct CCcontract_info *cp,uint8_t funcid,cJSON *params);
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bool sudoku_validate(struct CCcontract_info *cp,int32_t height,Eval *eval,const CTransaction tx);
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UniValue sudoku_txidinfo(uint64_t txfee,struct CCcontract_info *cp,cJSON *params);
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UniValue sudoku_generate(uint64_t txfee,struct CCcontract_info *cp,cJSON *params);
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UniValue sudoku_solution(uint64_t txfee,struct CCcontract_info *cp,cJSON *params);
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UniValue sudoku_pending(uint64_t txfee,struct CCcontract_info *cp,cJSON *params);
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UniValue CClib_method(struct CCcontract_info *cp,char *method,cJSON *params)
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{
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UniValue result(UniValue::VOBJ); uint64_t txfee = 10000;
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if ( cp->evalcode == EVAL_SUDOKU )
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{
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//printf("CClib_method params.%p\n",params);
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if ( strcmp(method,"txidinfo") == 0 )
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return(sudoku_txidinfo(txfee,cp,params));
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else if ( strcmp(method,"gen") == 0 )
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return(sudoku_generate(txfee,cp,params));
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else if ( strcmp(method,"solution") == 0 )
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return(sudoku_solution(txfee,cp,params));
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else if ( strcmp(method,"pending") == 0 )
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return(sudoku_pending(txfee,cp,params));
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else
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{
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result.push_back(Pair("result","error"));
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result.push_back(Pair("error","invalid sudoku method"));
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result.push_back(Pair("method",method));
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return(result);
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}
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}
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else
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{
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result.push_back(Pair("result","error"));
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result.push_back(Pair("error","only sudoku supported for now"));
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result.push_back(Pair("evalcode",(int)cp->evalcode));
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return(result);
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}
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}
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UniValue CClib_info(struct CCcontract_info *cp)
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{
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UniValue result(UniValue::VOBJ),a(UniValue::VARR); int32_t i; char str[2];
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result.push_back(Pair("result","success"));
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result.push_back(Pair("CClib",CClib_name()));
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for (i=0; i<sizeof(CClib_methods)/sizeof(*CClib_methods); i++)
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{
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UniValue obj(UniValue::VOBJ);
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obj.push_back(Pair("evalcode",CClib_methods[i].evalcode));
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if ( CClib_methods[i].funcid < ' ' || CClib_methods[i].funcid >= 128 )
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obj.push_back(Pair("funcid",CClib_methods[i].funcid));
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else
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{
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str[0] = CClib_methods[i].funcid;
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str[1] = 0;
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obj.push_back(Pair("funcid",str));
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}
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obj.push_back(Pair("name",CClib_methods[i].CCname));
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obj.push_back(Pair("method",CClib_methods[i].method));
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obj.push_back(Pair("help",CClib_methods[i].help));
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obj.push_back(Pair("params_required",CClib_methods[i].numrequiredargs));
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obj.push_back(Pair("params_max",CClib_methods[i].maxargs));
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a.push_back(obj);
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}
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result.push_back(Pair("methods",a));
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return(result);
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}
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UniValue CClib(struct CCcontract_info *cp,char *method,cJSON *params)
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{
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UniValue result(UniValue::VOBJ); int32_t i; std::string rawtx;
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//printf("CClib params.%p\n",params);
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for (i=0; i<sizeof(CClib_methods)/sizeof(*CClib_methods); i++)
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{
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if ( cp->evalcode == CClib_methods[i].evalcode && strcmp(method,CClib_methods[i].method) == 0 )
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{
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if ( cp->evalcode == EVAL_FAUCET2 )
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{
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result.push_back(Pair("result","success"));
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result.push_back(Pair("method",CClib_methods[i].method));
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rawtx = CClib_rawtxgen(cp,CClib_methods[i].funcid,params);
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result.push_back(Pair("rawtx",rawtx));
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return(result);
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} else return(CClib_method(cp,method,params));
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}
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}
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result.push_back(Pair("result","error"));
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result.push_back(Pair("method",CClib_methods[i].method));
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result.push_back(Pair("error","method not found"));
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return(result);
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}
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int64_t IsCClibvout(struct CCcontract_info *cp,const CTransaction& tx,int32_t v)
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{
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char destaddr[64];
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if ( tx.vout[v].scriptPubKey.IsPayToCryptoCondition() != 0 )
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{
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if ( Getscriptaddress(destaddr,tx.vout[v].scriptPubKey) > 0 && strcmp(destaddr,cp->unspendableCCaddr) == 0 )
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return(tx.vout[v].nValue);
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}
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return(0);
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}
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bool CClibExactAmounts(struct CCcontract_info *cp,Eval* eval,const CTransaction &tx,int32_t minage,uint64_t txfee)
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{
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static uint256 zerohash;
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CTransaction vinTx; uint256 hashBlock,activehash; int32_t i,numvins,numvouts; int64_t inputs=0,outputs=0,assetoshis;
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numvins = tx.vin.size();
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numvouts = tx.vout.size();
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for (i=0; i<numvins; i++)
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{
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//fprintf(stderr,"vini.%d\n",i);
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if ( (*cp->ismyvin)(tx.vin[i].scriptSig) != 0 )
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{
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//fprintf(stderr,"vini.%d check mempool\n",i);
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if ( eval->GetTxUnconfirmed(tx.vin[i].prevout.hash,vinTx,hashBlock) == 0 )
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return eval->Invalid("cant find vinTx");
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else
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{
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//fprintf(stderr,"vini.%d check hash and vout\n",i);
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if ( hashBlock == zerohash )
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return eval->Invalid("cant faucet2 from mempool");
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if ( (assetoshis= IsCClibvout(cp,vinTx,tx.vin[i].prevout.n)) != 0 )
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inputs += assetoshis;
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}
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}
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}
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for (i=0; i<numvouts; i++)
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{
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//fprintf(stderr,"i.%d of numvouts.%d\n",i,numvouts);
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if ( (assetoshis= IsCClibvout(cp,tx,i)) != 0 )
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outputs += assetoshis;
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}
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if ( inputs != outputs+FAUCET2SIZE+txfee )
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{
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fprintf(stderr,"inputs %llu vs outputs %llu\n",(long long)inputs,(long long)outputs);
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return eval->Invalid("mismatched inputs != outputs + FAUCET2SIZE + txfee");
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}
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else return(true);
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}
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bool CClib_validate(struct CCcontract_info *cp,int32_t height,Eval *eval,const CTransaction tx,unsigned int nIn)
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{
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int32_t numvins,numvouts,preventCCvins,preventCCvouts,i,numblocks; bool retval; uint256 txid; uint8_t hash[32]; char str[65],destaddr[64];
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std::vector<std::pair<CAddressIndexKey, CAmount> > txids;
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if ( cp->evalcode != EVAL_FAUCET2 )
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return(sudoku_validate(cp,height,eval,tx));
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numvins = tx.vin.size();
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numvouts = tx.vout.size();
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preventCCvins = preventCCvouts = -1;
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if ( numvouts < 1 )
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return eval->Invalid("no vouts");
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else
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{
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for (i=0; i<numvins; i++)
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{
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if ( IsCCInput(tx.vin[0].scriptSig) == 0 )
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{
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fprintf(stderr,"faucetget invalid vini\n");
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return eval->Invalid("illegal normal vini");
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}
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}
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//fprintf(stderr,"check amounts\n");
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if ( CClibExactAmounts(cp,eval,tx,1,10000) == false )
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{
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fprintf(stderr,"faucetget invalid amount\n");
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return false;
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}
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else
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{
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preventCCvouts = 1;
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if ( IsCClibvout(cp,tx,0) != 0 )
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{
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preventCCvouts++;
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i = 1;
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} else i = 0;
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txid = tx.GetHash();
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memcpy(hash,&txid,sizeof(hash));
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fprintf(stderr,"check faucetget txid %s %02x/%02x\n",uint256_str(str,txid),hash[0],hash[31]);
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if ( tx.vout[i].nValue != FAUCET2SIZE )
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return eval->Invalid("invalid faucet output");
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else if ( (hash[0] & 0xff) != 0 || (hash[31] & 0xff) != 0 )
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return eval->Invalid("invalid faucetget txid");
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Getscriptaddress(destaddr,tx.vout[i].scriptPubKey);
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SetCCtxids(txids,destaddr);
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for (std::vector<std::pair<CAddressIndexKey, CAmount> >::const_iterator it=txids.begin(); it!=txids.end(); it++)
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{
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//int height = it->first.blockHeight;
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if ( CCduration(numblocks,it->first.txhash) > 0 && numblocks > 3 )
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{
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//fprintf(stderr,"would return error %s numblocks.%d ago\n",uint256_str(str,it->first.txhash),numblocks);
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return eval->Invalid("faucet2 is only for brand new addresses");
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}
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}
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retval = PreventCC(eval,tx,preventCCvins,numvins,preventCCvouts,numvouts);
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if ( retval != 0 )
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fprintf(stderr,"faucet2get validated\n");
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else fprintf(stderr,"faucet2get invalid\n");
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return(retval);
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}
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}
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}
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int64_t AddCClibInputs(struct CCcontract_info *cp,CMutableTransaction &mtx,CPubKey pk,int64_t total,int32_t maxinputs)
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{
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char coinaddr[64]; int64_t threshold,nValue,price,totalinputs = 0; uint256 txid,hashBlock; std::vector<uint8_t> origpubkey; CTransaction vintx; int32_t vout,n = 0;
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std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> > unspentOutputs;
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GetCCaddress(cp,coinaddr,pk);
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SetCCunspents(unspentOutputs,coinaddr);
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threshold = total/(maxinputs+1);
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for (std::vector<std::pair<CAddressUnspentKey, CAddressUnspentValue> >::const_iterator it=unspentOutputs.begin(); it!=unspentOutputs.end(); it++)
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{
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txid = it->first.txhash;
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vout = (int32_t)it->first.index;
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char str[65]; fprintf(stderr,"%s check %s/v%d %.8f vs %.8f\n",coinaddr,uint256_str(str,txid),vout,(double)it->second.satoshis/COIN,(double)threshold/COIN);
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if ( it->second.satoshis < threshold )
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continue;
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// no need to prevent dup
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if ( GetTransaction(txid,vintx,hashBlock,false) != 0 )
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{
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if ( (nValue= IsCClibvout(cp,vintx,vout)) > 1000000 && myIsutxo_spentinmempool(txid,vout) == 0 )
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{
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if ( total != 0 && maxinputs != 0 )
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mtx.vin.push_back(CTxIn(txid,vout,CScript()));
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nValue = it->second.satoshis;
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totalinputs += nValue;
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n++;
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if ( (total > 0 && totalinputs >= total) || (maxinputs > 0 && n >= maxinputs) )
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break;
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} else fprintf(stderr,"nValue %.8f too small or already spent in mempool\n",(double)nValue/COIN);
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} else fprintf(stderr,"couldnt get tx\n");
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}
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return(totalinputs);
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}
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std::string Faucet2Fund(struct CCcontract_info *cp,uint64_t txfee,int64_t funds)
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{
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CMutableTransaction mtx = CreateNewContextualCMutableTransaction(Params().GetConsensus(), komodo_nextheight());
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CPubKey mypk,cclibpk; CScript opret;
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if ( txfee == 0 )
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txfee = 10000;
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mypk = pubkey2pk(Mypubkey());
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cclibpk = GetUnspendable(cp,0);
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if ( AddNormalinputs(mtx,mypk,funds+txfee,64) > 0 )
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{
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mtx.vout.push_back(MakeCC1vout(cp->evalcode,funds,cclibpk));
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return(FinalizeCCTx(0,cp,mtx,mypk,txfee,opret));
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}
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return("");
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}
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/*UniValue FaucetInfo()
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{
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UniValue result(UniValue::VOBJ); char numstr[64];
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CMutableTransaction mtx = CreateNewContextualCMutableTransaction(Params().GetConsensus(), komodo_nextheight());
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CPubKey faucetpk; struct CCcontract_info *cp,C; int64_t funding;
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result.push_back(Pair("result","success"));
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result.push_back(Pair("name","Faucet"));
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cp = CCinit(&C,EVAL_FAUCET);
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faucetpk = GetUnspendable(cp,0);
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funding = AddFaucetInputs(cp,mtx,faucetpk,0,0);
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|
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|
sprintf(numstr,"%.8f",(double)funding/COIN);
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|
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|
result.push_back(Pair("funding",numstr));
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|
return(result);
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|
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|
}*/
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|
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|
std::string CClib_rawtxgen(struct CCcontract_info *cp,uint8_t funcid,cJSON *params)
|
|
|
|
{
|
|
|
|
CMutableTransaction tmpmtx,mtx = CreateNewContextualCMutableTransaction(Params().GetConsensus(), komodo_nextheight());
|
|
|
|
CPubKey mypk,cclibpk; int64_t funds,txfee=0,inputs,CCchange=0,nValue=FAUCET2SIZE; std::string rawhex; uint32_t j; int32_t i,len; uint8_t buf[32768]; bits256 hash;
|
|
|
|
if ( txfee == 0 )
|
|
|
|
txfee = 10000;
|
|
|
|
if ( funcid == 'F' )
|
|
|
|
{
|
|
|
|
if ( cJSON_GetArraySize(params) > 0 )
|
|
|
|
{
|
|
|
|
funds = (int64_t)jdouble(jitem(params,0),0)*COIN + 0.0000000049;
|
|
|
|
return(Faucet2Fund(cp,0,funds));
|
|
|
|
} else return("");
|
|
|
|
}
|
|
|
|
else if ( funcid != 'G' )
|
|
|
|
return("");
|
|
|
|
cclibpk = GetUnspendable(cp,0);
|
|
|
|
mypk = pubkey2pk(Mypubkey());
|
|
|
|
if ( (inputs= AddCClibInputs(cp,mtx,cclibpk,nValue+txfee,60)) > 0 )
|
|
|
|
{
|
|
|
|
if ( inputs > nValue )
|
|
|
|
CCchange = (inputs - nValue - txfee);
|
|
|
|
if ( CCchange != 0 )
|
|
|
|
mtx.vout.push_back(MakeCC1vout(EVAL_FAUCET2,CCchange,cclibpk));
|
|
|
|
mtx.vout.push_back(CTxOut(nValue,CScript() << ParseHex(HexStr(mypk)) << OP_CHECKSIG));
|
|
|
|
fprintf(stderr,"start at %u\n",(uint32_t)time(NULL));
|
|
|
|
j = rand() & 0xfffffff;
|
|
|
|
for (i=0; i<1000000; i++,j++)
|
|
|
|
{
|
|
|
|
tmpmtx = mtx;
|
|
|
|
rawhex = FinalizeCCTx(-1LL,cp,tmpmtx,mypk,txfee,CScript() << OP_RETURN << E_MARSHAL(ss << (uint8_t)EVAL_FAUCET2 << (uint8_t)'G' << j));
|
|
|
|
if ( (len= (int32_t)rawhex.size()) > 0 && len < 65536 )
|
|
|
|
{
|
|
|
|
len >>= 1;
|
|
|
|
decode_hex(buf,len,(char *)rawhex.c_str());
|
|
|
|
hash = bits256_doublesha256(0,buf,len);
|
|
|
|
if ( (hash.bytes[0] & 0xff) == 0 && (hash.bytes[31] & 0xff) == 0 )
|
|
|
|
{
|
|
|
|
fprintf(stderr,"found valid txid after %d iterations %u\n",i,(uint32_t)time(NULL));
|
|
|
|
return(rawhex);
|
|
|
|
}
|
|
|
|
//fprintf(stderr,"%02x%02x ",hash.bytes[0],hash.bytes[31]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
fprintf(stderr,"couldnt generate valid txid %u\n",(uint32_t)time(NULL));
|
|
|
|
return("");
|
|
|
|
} else fprintf(stderr,"cant find faucet inputs\n");
|
|
|
|
return("");
|
|
|
|
}
|
|
|
|
|
|
|
|
#include "sudoku.cpp"
|
|
|
|
|