Hush Delayed Proof Of Work Dragon
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/******************************************************************************
* Copyright © 2018-2020 The Hush Developers *
* Copyright © 2014-2018 The SuperNET Developers. *
* *
* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* Hush software, including this file may be copied, modified, propagated *
* or distributed except according to the terms contained in the LICENSE file *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
#include "dragon.h"
#include <sodium/crypto_generichash_blake2b.h>
const unsigned char ZCASH_PREVOUTS_HASH_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','P','r','e','v','o','u','t','H','a','s','h' };
const unsigned char ZCASH_SEQUENCE_HASH_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','S','e','q','u','e','n','c','H','a','s','h' };
const unsigned char ZCASH_OUTPUTS_HASH_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','O','u','t','p','u','t','s','H','a','s','h' };
const unsigned char ZCASH_JOINSPLITS_HASH_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','J','S','p','l','i','t','s','H','a','s','h' };
const unsigned char ZCASH_SHIELDED_SPENDS_HASH_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','S','S','p','e','n','d','s','H','a','s','h' };
const unsigned char ZCASH_SHIELDED_OUTPUTS_HASH_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','S','O','u','t','p','u','t','H','a','s','h' };
const unsigned char ZCASH_SIG_HASH_SAPLING_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','S','i','g','H','a','s','h', '\xBB', '\x09', '\xB8', '\x76' };
const unsigned char ZCASH_SIG_HASH_OVERWINTER_PERSONALIZATION[16] =
{ 'Z','c','a','s','h','S','i','g','H','a','s','h', '\x19', '\x1B', '\xA8', '\x5B' };
uint64_t amountfromvalue(double value) {
// http://c-faq.com/fp/round.html
/* double frac = value - (uint64_t)value;
double whole = value - frac;
char frac_str[64], whole_str[64], *stopstring;
snprintf(frac_str, sizeof(frac_str), "%.8f", frac);
snprintf(whole_str, sizeof(whole_str), "%.8f", whole);
frac = strtod(frac_str, &stopstring);
whole = strtod(whole_str, &stopstring);
frac = frac * SATOSHIDEN;
whole = whole * SATOSHIDEN;
return (uint64_t)whole + (uint64_t)frac;
*/
return (uint64_t)(value * SATOSHIDEN + 0.5);
}
int32_t dragon_rwjoinsplit(int32_t rwflag,uint8_t *serialized,struct dragon_msgjoinsplit *msg, uint32_t proof_size); // defined in dragon_msg.c
// make sure coinbase outputs are matured
int32_t dragon_vinparse(struct dragon_info *coin,int32_t rwflag,uint8_t *serialized,struct dragon_msgvin *msg)
{
int32_t p2shlen,len = 0; uint32_t tmp;
len += dragon_rwbignum(rwflag,&serialized[len],sizeof(msg->prev_hash),msg->prev_hash.bytes);
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->prev_vout),&msg->prev_vout);
//char str[65]; printf("prev_hash.(%s) v%d\n",bits256_str(str,msg->prev_hash),msg->prev_vout);
if ( rwflag == 1 )
{
tmp = msg->scriptlen + msg->userdatalen + msg->p2shlen;
if ( msg->p2shlen != 0 )
{
if ( msg->p2shlen < 76 )
tmp++;
else if ( msg->p2shlen < 0x100 )
tmp += 2;
else tmp += 3;
}
}
len += dragon_rwvarint32(rwflag,&serialized[len],&tmp);
if ( rwflag == 0 )
{
/*if ( msg->p2shlen != 0 )
{
if ( msg->p2shlen < 76 )
tmp++;
else if ( msg->p2shlen < 0x100 )
tmp += 2;
else tmp += 3;
}*/
msg->scriptlen = tmp;
}
if ( msg->scriptlen > DRAGON_MAXSCRIPTSIZE )
{
printf("dragon_vinparse illegal scriptlen.%d\n",msg->scriptlen);
return(-1);
}
//printf("len.%d scriptlen.%d user.%d p2sh.%d\n",len,msg->scriptlen,msg->userdatalen,msg->p2shlen);
if ( rwflag == 0 )
{
msg->vinscript = &serialized[len];
len += msg->scriptlen;
}
else
{
if ( msg->vinscript != 0 && msg->scriptlen > 0 )
memcpy(&serialized[len],msg->vinscript,msg->scriptlen), len += msg->scriptlen; // pubkeys here
if ( msg->userdatalen > 0 && msg->userdata != 0 )
{
//printf("userdata.%d scriptlen.%d\n",msg->userdatalen,msg->scriptlen);
memcpy(&serialized[len],msg->userdata,msg->userdatalen);
len += msg->userdatalen;
}
if ( (p2shlen= msg->p2shlen) > 0 && msg->redeemscript != 0 )
{
if ( p2shlen < 76 )
serialized[len++] = p2shlen;
else if ( p2shlen <= 0xff )
{
serialized[len++] = 0x4c;
serialized[len++] = p2shlen;
}
else if ( p2shlen <= 0xffff )
{
serialized[len++] = 0x4d;
serialized[len++] = (p2shlen & 0xff);
serialized[len++] = ((p2shlen >> 8) & 0xff);
} else return(-1);
memcpy(&serialized[len],msg->redeemscript,p2shlen), len += p2shlen;
if ( (0) )
{
int32_t j;
for (j=0; j<p2shlen; j++)
printf("%02x",msg->redeemscript[j]);
printf(" p2shlen.%d %x\n",p2shlen,p2shlen);
}
}
}
//printf("sequence starts.%d %08x\n",len,*(int32_t *)&serialized[len]);
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->sequence),&msg->sequence);
if ( (0) )
{
int32_t i; char str[65];
for (i=0; i<len; i++)
printf("%02x",serialized[i]);
printf(" %08x prev_hash.(%s) vout.%d [%p] scriptlen.%d rwflag.%d\n",msg->sequence,bits256_str(str,msg->prev_hash),msg->prev_vout,msg->vinscript,msg->scriptlen,rwflag);
}
return(len);
}
int32_t dragon_voutparse(int32_t rwflag,uint8_t *serialized,struct dragon_msgvout *msg)
{
int32_t len = 0;
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->value),&msg->value);
len += dragon_rwvarint32(rwflag,&serialized[len],&msg->pk_scriptlen);
if ( msg->pk_scriptlen > DRAGON_MAXSCRIPTSIZE )
{
printf("dragon_voutparse illegal scriptlen.%d\n",msg->pk_scriptlen);
return(-1);
}
if ( rwflag == 0 )
msg->pk_script = &serialized[len];
else if ( msg->pk_scriptlen > 0 )
{
memcpy(&serialized[len],msg->pk_script,msg->pk_scriptlen);
if ( (0) )
{
int32_t i;
for (i=0; i<msg->pk_scriptlen; i++)
printf("%02x",msg->pk_script[i]);
printf(" [%p] scriptlen.%d rwflag.%d %.8f\n",msg->pk_script,msg->pk_scriptlen,rwflag,dstr(msg->value));
}
} // else serialized[len++] = 0;
len += msg->pk_scriptlen;
return(len);
}
cJSON *dragon_vinjson(struct dragon_info *coin,struct dragon_msgvin *vin,bits256 sigtxid)
{
char str[65]; int32_t vout; cJSON *json = cJSON_CreateObject();
vout = vin->prev_vout;
jaddnum(json,"sequence",vin->sequence);
if ( vout < 0 && bits256_nonz(vin->prev_hash) == 0 )
dragon_addscript(coin,json,vin->vinscript,vin->scriptlen,"coinbase");
else
{
jaddstr(json,"txid",bits256_str(str,vin->prev_hash));
jaddnum(json,"vout",vout);
if ( bits256_nonz(sigtxid) != 0 )
jaddbits256(json,"sigtxid",sigtxid);
if ( vin->scriptlen > 0 && vin->vinscript != 0 ) // sigs
dragon_addscript(coin,json,vin->vinscript,vin->scriptlen,"scriptSig");
if ( vin->userdatalen > 0 && vin->userdata != 0 )
dragon_addscript(coin,json,vin->userdata,vin->userdatalen,"userdata");
if ( vin->p2shlen > 0 && vin->redeemscript != 0 )
dragon_addscript(coin,json,vin->redeemscript,vin->p2shlen,"redeemScript");
if ( vin->spendlen > 0 && vin->spendscript != 0 )
dragon_addscript(coin,json,vin->spendscript,vin->spendlen,"scriptPubKey");
}
return(json);
}
int32_t dragon_parsehexstr(uint8_t **destp,uint16_t *lenp,uint8_t *dest2,int32_t *len2p,uint8_t *serialized,char *hexstr)
{
int32_t n;
n = (int32_t)strlen(hexstr) >> 1;
//printf("addhex.(%s) %d\n",hexstr,n);
if ( serialized == 0 )
{
if ( (serialized= *destp) == 0 )
printf("dragon_parsehexstr null serialized and destp\n");
}
if ( serialized != 0 )
{
decode_hex(serialized,n,hexstr);
*destp = serialized;
*lenp = n;
if ( dest2 != 0 && len2p != 0 )
{
*len2p = n;
memcpy(dest2,serialized,n);
}
}
return(n);
}
int32_t dragon_scriptnum(uint8_t opcode)
{
if ( opcode == 0x00 )
return(0);
else if ( opcode >= 0x51 && opcode < 0x60 )
return(opcode - 0x50);
else return(-1);
}
int32_t dragon_parsevinobj(struct supernet_info *myinfo,struct dragon_info *coin,uint8_t *serialized,int32_t maxsize,struct dragon_msgvin *vin,cJSON *vinobj,struct vin_info *V)
{
struct dragon_outpoint outpt; struct dragon_waddress *waddr; struct dragon_waccount *wacct; uint8_t lastbyte,spendscript[8192]; uint32_t tmp=0; int32_t i,n,starti,spendlen,suppress_pubkeys,siglen,plen,m,endi,z,rwflag=1,len = 0; char *userdata=0,*pubkeystr,*hexstr = 0,*redeemstr = 0,*spendstr = 0; cJSON *scriptjson = 0,*obj,*pubkeysjson = 0;
//printf("PARSEVIN.(%s) vin.%p\n",jprint(vinobj,0),vin);
if ( V == 0 )
memset(vin,0,sizeof(*vin));
vin->prev_vout = -1;
suppress_pubkeys = juint(vinobj,"suppress");
if ( jobj(vinobj,"sequence") != 0 )
vin->sequence = juint(vinobj,"sequence");
else vin->sequence = 0xffffffff;
if ( (hexstr= jstr(vinobj,"coinbase")) == 0 )
{
vin->prev_hash = jbits256(vinobj,"txid");
//char str[65]; printf("vin->prev_hash.(%s)\n",bits256_str(str,vin->prev_hash));
vin->prev_vout = jint(vinobj,"vout");
if ( (scriptjson= jobj(vinobj,"scriptSig")) != 0 )
hexstr = jstr(scriptjson,"hex");
if ( ((spendstr= jstr(vinobj,"scriptPub")) == 0 && (spendstr= jstr(vinobj,"scriptPubKey")) == 0) || is_hexstr(spendstr,(int32_t)strlen(spendstr)) <= 0 )
{
if ( (obj= jobj(vinobj,"scriptPub")) != 0 || (obj= jobj(vinobj,"scriptPubKey")) != 0 )
{
spendstr = jstr(obj,"hex");
if ( spendstr[0] != 0 )
{
lastbyte = _decode_hex(&spendstr[strlen(spendstr)-2]);
//if ( lastbyte == SCRIPT_OP_CHECKMULTISIG )
// need_op0 = 1;
if ( V != 0 )
{
V->spendlen = (int32_t)strlen(spendstr) >> 1;
decode_hex(V->spendscript,V->spendlen,spendstr);
}
}
}
}
if ( (redeemstr= jstr(vinobj,"redeemScript")) == 0 || is_hexstr(redeemstr,(int32_t)strlen(redeemstr)) <= 0 )
{
if ( (obj= jobj(vinobj,"redeemScript")) != 0 )
{
redeemstr = jstr(obj,"hex");
lastbyte = _decode_hex(&redeemstr[strlen(redeemstr)-2]);
//if ( lastbyte == SCRIPT_OP_CHECKMULTISIG )
// need_op0 = 1;
}
}
if ( (userdata= jstr(vinobj,"userdata")) == 0 || is_hexstr(userdata,(int32_t)strlen(userdata)) <= 0 )
{
if ( (obj= jobj(vinobj,"userdata")) != 0 )
userdata = jstr(obj,"hex");
}
}
//char str[65]; printf("rw.%d prevhash.(%s)\n",rwflag,bits256_str(str,vin->prev_hash));
len += dragon_rwbignum(rwflag,&serialized[len],sizeof(vin->prev_hash),vin->prev_hash.bytes);
len += dragon_rwnum(rwflag,&serialized[len],sizeof(vin->prev_vout),&vin->prev_vout);
if ( V != 0 )
{
V->suppress_pubkeys = suppress_pubkeys;
if ( vin->vinscript == 0 && V->spendlen == 0 )
{
if ( dragon_RTunspentindfind(myinfo,coin,&outpt,V->coinaddr,spendscript,&spendlen,&V->amount,&V->height,vin->prev_hash,vin->prev_vout,coin->bundlescount-1,0) == 0 )
{
V->unspentind = outpt.unspentind;
if ( V->coinaddr[0] != 0 && (waddr= dragon_waddresssearch(myinfo,&wacct,V->coinaddr)) != 0 )
{
plen = bitcoin_pubkeylen(waddr->pubkey);
for (z=0; z<plen; z++)
V->signers[0].pubkey[z] = waddr->pubkey[z];
}
//printf("V %.8f (%s) spendscript.[%d]\n",dstr(V->amount),V->coinaddr,V->spendlen);
}
if ( spendlen != 0 && V->spendlen == 0 )
{
V->spendlen = spendlen;
memcpy(V->spendscript,spendscript,spendlen);
}
}
}
tmp = DRAGON_MAXSCRIPTSIZE;
starti = len;
len += dragon_rwvarint32(rwflag,&serialized[len],&tmp);
endi = len;
//printf("rwflag.%d len.%d tmp.%d\n",rwflag,len,tmp);
//if ( need_op0 != 0 )
// serialized[len++] = 0; // hack for bug for bug backward compatibility
if ( hexstr != 0 )
{
n = (int32_t)strlen(hexstr) >> 1;
//printf("add.(%s) offset.%d\n",hexstr,len);
vin->vinscript = &serialized[len];
decode_hex(&serialized[len],n,hexstr);
vin->scriptlen = n;// + need_op0;
if ( V != 0 )
{
i = m = 0;
while ( m < n )
{
siglen = serialized[len + m++];
//if ( i == 0 && m == 1 && siglen == 0 ) // multisig backward compatible
// continue;
if ( serialized[len + m + siglen - 1] == SIGHASH_ALL )
memcpy(V->signers[i++].sig,&serialized[len + m],siglen);
if ( (0) )
{
int32_t j;
for (j=0; j<siglen; j++)
printf("%02x",serialized[len + m + j]);
printf(" (%d) parsedvin\n",siglen);
}
m += siglen;
i++;
}
if ( m != n )
printf("ERROR: (%s) len.%d n.%d i.%d\n",hexstr,m,n,i);
}
len += n;
} //else printf("dragon_parsevinobj: hex script missing (%s)\n",jprint(vinobj,0));
if ( (pubkeysjson= jarray(&n,vinobj,"pubkeys")) != 0 && vin->vinscript != 0 )
{
/*if ( vin->vinscript == 0 )
{
vin->vinscript = serialized;
vin->vinscript[0] = 0;
vin->scriptlen = 1;
}*/
for (i=0; i<n; i++)
{
if ( (pubkeystr= jstr(jitem(pubkeysjson,i),0)) != 0 && (plen= (int32_t)strlen(pubkeystr) >> 1) > 0 )
{
if ( V != 0 )
{
memcpy(V->signers[i].pubkey,&vin->vinscript[vin->scriptlen],plen);
if ( V->spendlen == 35 && V->spendscript[0] == 33 && V->spendscript[34] == 0xac )
suppress_pubkeys = 1;
}
if ( suppress_pubkeys == 0 )
{
printf("addpub.(%s)\n",pubkeystr);
vin->vinscript[vin->scriptlen++] = plen;
decode_hex(&vin->vinscript[vin->scriptlen],plen,pubkeystr);
vin->scriptlen += plen;
serialized[len++] = plen;
memcpy(&serialized[len],&vin->vinscript[vin->scriptlen],plen), len += plen;
}
}
}
}
//printf("userdata len.%d: ",len);
if ( userdata != 0 )
{
n = dragon_parsehexstr(&vin->userdata,&vin->userdatalen,V!=0?V->userdata:0,V!=0?&V->userdatalen:0,&serialized[len],userdata);
//printf("parsed userdata.%d\n",n);
len += n;
}
//printf("redeemlen.%d: ",len);
if ( redeemstr != 0 )
{
n = (int32_t)strlen(redeemstr) >> 1;
if ( n < 76 )
serialized[len++] = n;
else if ( n <= 0xff )
{
serialized[len++] = 0x4c;
serialized[len++] = n;
}
else
{
serialized[len++] = 0x4d;
serialized[len++] = n & 0xff;
serialized[len++] = (n >> 8) & 0xff;
}
n = dragon_parsehexstr(&vin->redeemscript,&vin->p2shlen,V!=0?V->p2shscript:0,V!=0?&V->p2shlen:0,&serialized[len],redeemstr);
len += n;
if ( vin->redeemscript[vin->p2shlen-1] == SCRIPT_OP_CHECKMULTISIG )
{
V->M = dragon_scriptnum(vin->redeemscript[0]);
V->N = dragon_scriptnum(vin->redeemscript[vin->p2shlen-2]);
}
}
tmp = (len - endi);
if ( tmp < 0xfd )
{
serialized[starti] = tmp;
for (i=starti+1; i<starti+1+tmp; i++)
serialized[i] = serialized[i+2];
//printf("tmp.%d (len.%d - starti.%d) i.%d\n",tmp,len,starti,i);
len -= 2;
}
else
{
//for (i=0; i<len; i++)
// printf("%02x",serialized[i]);
//printf(" <- offset.%d tmp.%d starti.%d\n",len,tmp,starti);
serialized[starti+1] = (tmp & 0xff);
serialized[starti+2] = ((tmp >> 8) & 0xff);
}
//printf("len.%d tmp.%d output sequence.[%d] <- %x\n",len,tmp,len,vin->sequence);
len += dragon_rwnum(rwflag,&serialized[len],sizeof(vin->sequence),&vin->sequence);
if ( spendstr != 0 )
{
if ( V != 0 )
{
if ( V->spendlen == 0 )
{
V->spendlen = (int32_t)strlen(spendstr) >> 1;
decode_hex(V->spendscript,V->spendlen,spendstr);
}
if ( vin->spendscript == 0 )
vin->spendscript = V->spendscript;
}
if ( vin->spendlen == 0 && vin->spendscript != 0 )
{
vin->spendlen = (int32_t)strlen(spendstr) >> 1;
decode_hex(vin->spendscript,vin->spendlen,spendstr);
}
//printf("serialized.%p len.%d\n",serialized,len);
//n = dragon_parsehexstr(&vin->spendscript,&vin->spendlen,V!=0?V->spendscript:0,V!=0?&V->spendlen:0,&serialized[len],spendstr);
//len += n;
}
return(len);
}
int32_t dragon_parsevoutobj(struct dragon_info *coin,uint8_t *serialized,int32_t maxsize,struct dragon_msgvout *vout,cJSON *voutobj)
{
int32_t n,len = 0,rwflag = 1; cJSON *skey; char *hexstr;
memset(vout,0,sizeof(*vout));
if ( jobj(voutobj,"satoshis") != 0 )
vout->value = j64bits(voutobj,"satoshis");
else vout->value = jdouble(voutobj,"value") * SATOSHIDEN;
len += dragon_rwnum(rwflag,&serialized[len],sizeof(vout->value),&vout->value);
if ( (skey= jobj(voutobj,"scriptPubKey")) != 0 )
{
if ( (hexstr= jstr(skey,"hex")) != 0 )
{
n = (int32_t)strlen(hexstr) >> 1;
vout->pk_scriptlen = n;
len += dragon_rwvarint32(rwflag,&serialized[len],&vout->pk_scriptlen);
decode_hex(&serialized[len],n,hexstr);
vout->pk_script = &serialized[len];
len += n;
} // else serialized[len++] = 0;
} //else serialized[len++] = 0;
return(len);
}
cJSON *dragon_voutjson(struct dragon_info *coin,struct dragon_msgvout *vout,int32_t txi,bits256 txid)
{
// 035f1321ed17d387e4433b2fa229c53616057964af065f98bfcae2233c5108055e OP_CHECKSIG
char scriptstr[DRAGON_MAXSCRIPTSIZE+1],asmstr[2*DRAGON_MAXSCRIPTSIZE+1]; int32_t i,m,n,scriptlen,asmtype; struct vin_info *vp;
uint8_t space[8192]; cJSON *addrs,*skey,*json = cJSON_CreateObject();
vp = calloc(1,sizeof(*vp));
jadd64bits(json,"satoshis",vout->value);
jaddnum(json,"value",dstr(vout->value));
jaddnum(json,"n",txi);
//"scriptPubKey":{"asm":"OP_DUP OP_HASH160 5f69cb73016264270dae9f65c51f60d0e4d6fd44 OP_EQUALVERIFY OP_CHECKSIG","reqSigs":1,"type":"pubkeyhash","addresses":["RHyh1V9syARTf2pyxibz7v27D5paBeWza5"]}
if ( vout->pk_script != 0 && vout->pk_scriptlen*2+1 < sizeof(scriptstr) )
{
memset(vp,0,sizeof(*vp));
if ( (asmtype= dragon_calcrmd160(coin,asmstr,vp,vout->pk_script,vout->pk_scriptlen,txid,txi,0xffffffff)) >= 0 )
{
skey = cJSON_CreateObject();
scriptlen = dragon_scriptgen(coin,&m,&n,vp->coinaddr,space,asmstr,vp->rmd160,asmtype,vp,txi);
if ( asmstr[0] != 0 )
jaddstr(skey,"asm",asmstr);
addrs = cJSON_CreateArray();
if ( vp->N == 1 )
{
if ( asmtype == 2 )
{
jaddnum(skey,"reqSigs",1);
jaddstr(skey,"type","pubkeyhash");
}
if ( vp->coinaddr[0] != 0 )
jaddistr(addrs,vp->coinaddr);
}
else
{
jaddnum(skey,"reqSigs",vp->M);
for (i=0; i<vp->N; i++)
{
//btc_convrmd160(coinaddr,coin->chain->pubtype,V.signers[i].pubkey);
jaddistr(addrs,vp->signers[i].coinaddr);
}
}
jadd(skey,"addresses",addrs);
init_hexbytes_noT(scriptstr,vout->pk_script,vout->pk_scriptlen);
if ( scriptstr[0] != 0 )
jaddstr(skey,"hex",scriptstr);
jadd(json,"scriptPubKey",skey);
}
}
return(json);
}
bits256 bitcoin_sigtxid(struct dragon_info *coin, int32_t height, uint8_t *serialized, int32_t maxlen, struct dragon_msgtx *msgtx, int32_t vini, uint8_t *spendscript, int32_t spendlen, uint64_t spendamount, int32_t hashtype, char *vpnstr, int32_t suppress_pubkeys)
{
int32_t i,len; bits256 sigtxid,txid,revsigtxid; struct dragon_msgtx dest;
dest = *msgtx;
dest.vins = calloc(dest.tx_in,sizeof(*dest.vins));
dest.vouts = calloc(dest.tx_out,sizeof(*dest.vouts));
memcpy(dest.vins,msgtx->vins,dest.tx_in * sizeof(*dest.vins));
memcpy(dest.vouts,msgtx->vouts,dest.tx_out * sizeof(*dest.vouts));
memset(sigtxid.bytes,0,sizeof(sigtxid));
if ( hashtype != SIGHASH_ALL )
{
printf("currently only SIGHASH_ALL supported, not %d\n",hashtype);
return(sigtxid);
}
uint32_t overwintered = dest.version >> 31;
uint32_t version = dest.version & 0x7FFFFFFF;
if (overwintered && version >= 3) {
// sapling tx sighash preimage
len = 0;
uint8_t for_sig_hash[1000], sig_hash[32];
len = dragon_rwnum(1, &for_sig_hash[len], sizeof(dest.version), &dest.version);
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(dest.version_group_id), &dest.version_group_id);
uint8_t prev_outs[1000], hash_prev_outs[32];
int32_t prev_outs_len = 0;
for (i = 0; i < dest.tx_in; i++) {
prev_outs_len += dragon_rwbignum(1, &prev_outs[prev_outs_len], sizeof(dest.vins[i].prev_hash), dest.vins[i].prev_hash.bytes);
prev_outs_len += dragon_rwnum(1, &prev_outs[prev_outs_len], sizeof(dest.vins[i].prev_vout), &dest.vins[i].prev_vout);
}
crypto_generichash_blake2b_salt_personal(
hash_prev_outs,
32,
prev_outs,
(uint64_t)prev_outs_len,
NULL,
0,
NULL,
ZCASH_PREVOUTS_HASH_PERSONALIZATION
);
memcpy(&for_sig_hash[len], hash_prev_outs, 32);
len += 32;
uint8_t sequence[1000], sequence_hash[32];
int32_t sequence_len = 0;
for (i = 0; i < dest.tx_in; i++) {
sequence_len += dragon_rwnum(1, &sequence[sequence_len], sizeof(dest.vins[i].sequence),
&dest.vins[i].sequence);
}
crypto_generichash_blake2b_salt_personal(
sequence_hash,
32,
sequence,
(uint64_t)sequence_len,
NULL,
0,
NULL,
ZCASH_SEQUENCE_HASH_PERSONALIZATION
);
memcpy(&for_sig_hash[len], sequence_hash, 32);
len += 32;
uint8_t *outputs, hash_outputs[32];
int32_t outputs_len = 0;
for (i = 0; i < dest.tx_out; i++) { outputs_len += sizeof(dest.vouts[i].value); outputs_len++; outputs_len += dest.vouts[i].pk_scriptlen; } // calc size for outputs buffer
// printf("[Decker] outputs_len = %d\n", outputs_len);
outputs = malloc(outputs_len);
outputs_len = 0;
for (i = 0; i < dest.tx_out; i++) {
outputs_len += dragon_rwnum(1, &outputs[outputs_len], sizeof(dest.vouts[i].value), &dest.vouts[i].value);
outputs[outputs_len++] = (uint8_t)dest.vouts[i].pk_scriptlen;
memcpy(&outputs[outputs_len], dest.vouts[i].pk_script, dest.vouts[i].pk_scriptlen);
outputs_len += dest.vouts[i].pk_scriptlen;
}
crypto_generichash_blake2b_salt_personal(
hash_outputs,
32,
outputs,
(uint64_t)outputs_len,
NULL,
0,
NULL,
ZCASH_OUTPUTS_HASH_PERSONALIZATION
);
memcpy(&for_sig_hash[len], hash_outputs, 32);
len += 32;
free(outputs);
// no join splits, fill the hashJoinSplits with 32 zeros
memset(&for_sig_hash[len], 0, 32);
len += 32;
if (version > 3) {
// no shielded spends, fill the hashShieldedSpends with 32 zeros
memset(&for_sig_hash[len], 0, 32);
len += 32;
// no shielded outputs, fill the hashShieldedOutputs with 32 zeros
memset(&for_sig_hash[len], 0, 32);
len += 32;
}
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(dest.lock_time), &dest.lock_time);
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(dest.expiry_height), &dest.expiry_height);
if (version > 3) {
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(dest.value_balance), &dest.value_balance);
}
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(hashtype), &hashtype);
len += dragon_rwbignum(1, &for_sig_hash[len], sizeof(dest.vins[vini].prev_hash), dest.vins[vini].prev_hash.bytes);
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(dest.vins[vini].prev_vout), &dest.vins[vini].prev_vout);
for_sig_hash[len++] = (uint8_t)spendlen;
memcpy(&for_sig_hash[len], spendscript, spendlen), len += spendlen;
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(spendamount), &spendamount);
len += dragon_rwnum(1, &for_sig_hash[len], sizeof(dest.vins[vini].sequence), &dest.vins[vini].sequence);
unsigned const char *sig_hash_personal = ZCASH_SIG_HASH_OVERWINTER_PERSONALIZATION;
if (version == 4) {
sig_hash_personal = ZCASH_SIG_HASH_SAPLING_PERSONALIZATION;
}
crypto_generichash_blake2b_salt_personal(
sig_hash,
32,
for_sig_hash,
(uint64_t)len,
NULL,
0,
NULL,
sig_hash_personal
);
for (i = 0; i<32; i++)
sigtxid.bytes[i] = sig_hash[i];
}
else {
for (i = 0; i<dest.tx_in; i++)
{
if (i == vini)
{
dest.vins[i].vinscript = spendscript;
dest.vins[i].scriptlen = spendlen;
//int32_t j; for (j=0; j<spendlen; j++)
// printf("%02x",spendscript[j]);
//printf(" tmpscript.%d vini.%d\n",spendlen,vini);
}
else
{
dest.vins[i].vinscript = (uint8_t *)"";
dest.vins[i].scriptlen = 0;
}
dest.vins[i].p2shlen = 0;
dest.vins[i].redeemscript = 0;
dest.vins[i].userdata = 0;
dest.vins[i].userdatalen = 0;
}
len = dragon_rwmsgtx(coin, height, 1, 0, serialized, maxlen, &dest, &txid, vpnstr, 0, 0, 0, suppress_pubkeys);
//for (i=0; i<len; i++)
// printf("%02x",serialized[i]);
//printf(" <- sigtx len.%d supp.%d user[0].%d\n",len,suppress_pubkeys,dest.vins[0].userdatalen);
if (len > 0) // (dest.tx_in != 1 || bits256_nonz(dest.vins[0].prev_hash) != 0) && dest.vins[0].scriptlen > 0 &&
{
#ifdef BTC2_VERSION
if (height >= BTC2_HARDFORK_HEIGHT)
hashtype |= (0x777 << 20);
#endif
len += dragon_rwnum(1, &serialized[len], sizeof(hashtype), &hashtype);
revsigtxid = bits256_doublesha256(0, serialized, len);
for (i = 0; i<sizeof(revsigtxid); i++)
sigtxid.bytes[31 - i] = revsigtxid.bytes[i];
//char str[65]; printf("SIGTXID.(%s) numvouts.%d\n",bits256_str(str,sigtxid),dest.tx_out);
}
}
free(dest.vins);
free(dest.vouts);
return(sigtxid);
}
void dragon_vinobjset(struct dragon_msgvin *vin,cJSON *item,uint8_t *spendscript,int32_t maxsize)
{
char *redeemstr,*hexstr=0; cJSON *sobj;
if ( (redeemstr= jstr(item,"redeemScript")) != 0 && is_hexstr(redeemstr,0) > 0 )
{
vin->p2shlen = (int32_t)strlen(redeemstr) >> 1;
vin->spendlen = vin->p2shlen;
vin->redeemscript = calloc(1,vin->p2shlen);
decode_hex(vin->redeemscript,vin->p2shlen,redeemstr);
hexstr = redeemstr;
//printf("VINOBJSET.(%s)\n",redeemstr);
}
else if ( (sobj= jobj(item,"scriptPubKey")) != 0 && (hexstr= jstr(sobj,"hex")) != 0 && is_hexstr(hexstr,0) > 0 && (vin->spendlen == 0 || vin->spendscript == 0) )
{
vin->spendlen = (int32_t)strlen(hexstr) >> 1;
}
if ( hexstr != 0 && vin->spendlen != 0 )
{
if ( vin->spendlen < maxsize )
{
if ( vin->spendscript == 0 )
vin->spendscript = spendscript;
decode_hex(vin->spendscript,vin->spendlen,hexstr);
}
}
}
int32_t dragon_vinarray_check(cJSON *vinarray,bits256 txid,int32_t vout)
{
bits256 array_txid; cJSON *item; int32_t array_vout,i,n = cJSON_GetArraySize(vinarray);
for (i=0; i<n; i++)
{
item = jitem(vinarray,i);
array_txid = jbits256(item,"txid");
array_vout = jint(item,"vout");
if ( bits256_cmp(array_txid,txid) == 0 && array_vout == vout )
{
printf("vinarray.[%d] duplicate\n",i);
return(i);
}
}
return(-1);
}
int32_t dragon_rwmsgtx(struct dragon_info *coin,int32_t height,int32_t rwflag,cJSON *json,uint8_t *serialized,int32_t maxsize,struct dragon_msgtx *msg,bits256 *txidp,char *vpnstr,uint8_t *extraspace,int32_t extralen,cJSON *vins,int32_t suppress_pubkeys)
{
int32_t i,n,len = 0,extraused=0; uint8_t spendscript[DRAGON_MAXSCRIPTSIZE],*txstart = serialized,*sigser=0; char txidstr[65]; uint64_t spendamount; cJSON *vinarray=0,*voutarray=0; bits256 sigtxid;
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->version),&msg->version);
uint32_t overwintered = msg->version >> 31;
uint32_t version = msg->version;
// for version 4 the ZK proof size is 192, otherwise 296
uint32_t zksnark_proof_size = ZKSNARK_PROOF_SIZE;
if (coin->sapling != 0) {
if (overwintered) {
version = msg->version & 0x7FFFFFFF;
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->version_group_id), &msg->version_group_id);
if (version >= 4) {
zksnark_proof_size = GROTH_PROOF_SIZE;
}
}
}
if ( json != 0 )
{
if (overwintered) {
jaddnum(json, "version", msg->version & 0x7FFFFFFF);
}
else {
jaddnum(json, "version", msg->version);
}
cJSON_AddBoolToObject(json, "overwintered", overwintered);
if (overwintered) {
char group_id_str[10];
sprintf(group_id_str, "%x", msg->version_group_id);
jaddstr(json, "versiongroupid", group_id_str);
}
vinarray = cJSON_CreateArray();
voutarray = cJSON_CreateArray();
if ( rwflag == 0 )
sigser = calloc(1,maxsize*2);
//printf("json.%p array.%p sigser.%p\n",json,vinarray,sigser);
}
//printf("version.%d\n",msg->version);
if ( coin->chain->isPoS != 0 )
{
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->timestamp),&msg->timestamp);
//char str[65]; printf("version.%d timestamp.%08x %u %s\n",msg->version,msg->timestamp,msg->timestamp,utc_str(str,msg->timestamp));
if ( json != 0 )
jaddnum(json,"timestamp",msg->timestamp);
}
len += dragon_rwvarint32(rwflag,&serialized[len],&msg->tx_in);
if ( rwflag == 0 )
{
if ( msg->vins == 0 )
{
if ( sizeof(struct dragon_msgvin)*msg->tx_in > extralen )
{
printf("(size.%d * tx_in.%d) > extralen.%d\n",(int32_t)sizeof(struct dragon_msgvin),msg->tx_in,extralen);
return(-1);
}
msg->vins = (struct dragon_msgvin *)extraspace;
extraused += (sizeof(struct dragon_msgvin) * msg->tx_in);
} else printf("unexpected non-null msg->vins.%p\n",msg->vins);
memset(msg->vins,0,sizeof(struct dragon_msgvin) * msg->tx_in);
}
for (i=0; i<msg->tx_in; i++)
{
//printf("vin.%d starts offset.%d\n",i,len);
if ( vins != 0 && jitem(vins,i) != 0 )
dragon_vinobjset(&msg->vins[i],jitem(vins,i),spendscript,sizeof(spendscript));
if ( (n= dragon_vinparse(coin,rwflag,&serialized[len],&msg->vins[i])) < 0 )
return(-1);
//printf("serialized vin.[%02x %02x %02x]\n",serialized[len],serialized[len+1],serialized[len+2]);
if ( msg->vins[i].spendscript == spendscript )
msg->vins[i].spendscript = 0;
//printf("vin.%d n.%d len.%d\n",i,n,len);
len += n;
if ( len > maxsize )
{
printf("invalid tx_in.%d len.%d vs maxsize.%d\n",msg->tx_in,len,maxsize);
return(-1);
}
}
//for (i=-3; i<7; i++)
// printf("%02x",serialized[len+i]);
//printf(" prev 3 bytes before tx_out rw.%d\n",rwflag);
len += dragon_rwvarint32(rwflag,&serialized[len],&msg->tx_out);
if ( rwflag == 0 )
{
if ( msg->vouts == 0 )
{
if ( (extraused & 0xf) != 0 )
extraused += 0xf - (extraused & 0xf);
if ( extraused + sizeof(struct dragon_msgvout)*msg->tx_out > extralen )
{
printf("extraused.%d + tx_out.%d > extralen.%d\n",extraused,msg->tx_out,extralen);
return(-1);
}
msg->vouts = (struct dragon_msgvout *)&extraspace[extraused];
extraused += (sizeof(struct dragon_msgvout) * msg->tx_out);
} else printf("unexpected non-null msg->vouts %p\n",msg->vouts);
memset(msg->vouts,0,sizeof(struct dragon_msgvout) * msg->tx_out);
}
for (i=0; i<msg->tx_out; i++)
{
//printf("rwflag.%d vout.%d starts %d\n",rwflag,i,len);
if ( (n= dragon_voutparse(rwflag,&serialized[len],&msg->vouts[i])) < 0 )
return(-1);
len += n;
if ( len > maxsize )
{
printf("invalidC tx_out.%d of %d len.%d vs maxsize.%d n.%d\n",i,msg->tx_out,len,maxsize,n);
return(-1);
}
if ( voutarray != 0 )
jaddi(voutarray,dragon_voutjson(coin,&msg->vouts[i],i,*txidp));
}
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->lock_time),&msg->lock_time);
if ((coin->sapling !=0) && overwintered) {
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->expiry_height), &msg->expiry_height);
if (json != 0) {
jaddnum(json, "expiryheight", msg->expiry_height);
}
if (version >= 4) {
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->value_balance), &msg->value_balance);
if (json != 0) {
jaddnum(json, "valueBalance", dstr(msg->value_balance));
}
cJSON *v_shielded_spend = cJSON_CreateArray();
cJSON *v_shielded_output = cJSON_CreateArray();
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->shielded_spend_num), &msg->shielded_spend_num);
if (msg->shielded_spend_num > 0) {
if (extraused + sizeof(struct sapling_spend_description) * msg->shielded_spend_num > extralen) {
printf("extraused.%d + shielded_spend.%d > extralen.%d\n", extraused, msg->shielded_spend_num,
extralen);
return (-1);
}
msg->shielded_spends = (struct sapling_spend_description *) &extraspace[extraused];
extraused += (sizeof(struct sapling_spend_description) * msg->shielded_spend_num);
for (i = 0; i < msg->shielded_spend_num; i++) {
len += dragon_rwbignum(rwflag, &serialized[len], sizeof(msg->shielded_spends[i].cv), msg->shielded_spends[i].cv.bytes);
len += dragon_rwbignum(rwflag, &serialized[len], sizeof(msg->shielded_spends[i].anchor), msg->shielded_spends[i].anchor.bytes);
len += dragon_rwbignum(rwflag, &serialized[len], sizeof(msg->shielded_spends[i].nullifier), msg->shielded_spends[i].nullifier.bytes);
len += dragon_rwbignum(rwflag, &serialized[len], sizeof(msg->shielded_spends[i].rk), msg->shielded_spends[i].rk.bytes);
if (rwflag == 1) {
memcpy(&serialized[len], msg->shielded_spends[i].zkproof, GROTH_PROOF_SIZE);
}
else {
memcpy(msg->shielded_spends[i].zkproof, &serialized[len], GROTH_PROOF_SIZE);
}
len += GROTH_PROOF_SIZE;
if (rwflag == 1) {
memcpy(&serialized[len], msg->shielded_spends[i].spend_auth_sig, SAPLING_AUTH_SIG_SIZE);
}
else {
memcpy(msg->shielded_spends[i].spend_auth_sig, &serialized[len], SAPLING_AUTH_SIG_SIZE);
}
len += SAPLING_AUTH_SIG_SIZE;
if (json != 0) {
cJSON *spend_item = cJSON_CreateObject();
jaddbits256(spend_item, "cv", msg->shielded_spends[i].cv);
jaddbits256(spend_item, "anchor", msg->shielded_spends[i].anchor);
jaddbits256(spend_item, "nullifier", msg->shielded_spends[i].nullifier);
jaddbits256(spend_item, "rk", msg->shielded_spends[i].rk);
char proof_str[GROTH_PROOF_SIZE * 2 + 1];
init_hexbytes_noT(proof_str, msg->shielded_spends[i].zkproof, GROTH_PROOF_SIZE);
jaddstr(spend_item, "proof", proof_str);
char auth_sig_str[SAPLING_AUTH_SIG_SIZE * 2 + 1];
init_hexbytes_noT(auth_sig_str, msg->shielded_spends[i].spend_auth_sig, SAPLING_AUTH_SIG_SIZE);
jaddstr(spend_item, "spendAuthSig", auth_sig_str);
jaddi(v_shielded_spend, spend_item);
}
}
}
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->shielded_output_num), &msg->shielded_output_num);
if (msg->shielded_output_num > 0) {
if (extraused + sizeof(struct sapling_output_description) * msg->shielded_output_num > extralen) {
printf("extraused.%d + shielded_output.%d > extralen.%d\n", extraused, msg->shielded_output_num,
extralen);
return (-1);
}
msg->shielded_outputs = (struct sapling_output_description *) &extraspace[extraused];
extraused += (sizeof(struct sapling_output_description) * msg->shielded_output_num);
for (i = 0; i < msg->shielded_output_num; i++) {
len += dragon_rwbignum(rwflag, &serialized[len], sizeof(msg->shielded_outputs[i].cv), msg->shielded_outputs[i].cv.bytes);
len += dragon_rwbignum(rwflag, &serialized[len], sizeof(msg->shielded_outputs[i].cm), msg->shielded_outputs[i].cm.bytes);
len += dragon_rwbignum(rwflag, &serialized[len], sizeof(msg->shielded_outputs[i].ephemeral_key), msg->shielded_outputs[i].ephemeral_key.bytes);
if (rwflag == 1) {
memcpy(&serialized[len], msg->shielded_outputs[i].enc_ciphertext, ENC_CIPHER_SIZE);
}
else {
memcpy(msg->shielded_outputs[i].enc_ciphertext, &serialized[len], ENC_CIPHER_SIZE);
}
len += ENC_CIPHER_SIZE;
if (rwflag == 1) {
memcpy(&serialized[len], msg->shielded_outputs[i].out_ciphertext, OUT_CIPHER_SIZE);
}
else {
memcpy(msg->shielded_outputs[i].out_ciphertext, &serialized[len], OUT_CIPHER_SIZE);
}
len += OUT_CIPHER_SIZE;
if (rwflag == 1) {
memcpy(&serialized[len], msg->shielded_outputs[i].zkproof, GROTH_PROOF_SIZE);
}
else {
memcpy(msg->shielded_outputs[i].zkproof, &serialized[len], GROTH_PROOF_SIZE);
}
len += GROTH_PROOF_SIZE;
if (json != 0) {
cJSON *output_item = cJSON_CreateObject();
jaddbits256(output_item, "cv", msg->shielded_outputs[i].cv);
jaddbits256(output_item, "cmu", msg->shielded_outputs[i].cm);
jaddbits256(output_item, "ephemeralKey", msg->shielded_outputs[i].ephemeral_key);
char enc_cip_str[ENC_CIPHER_SIZE * 2 + 1];
init_hexbytes_noT(enc_cip_str, msg->shielded_outputs[i].enc_ciphertext, ENC_CIPHER_SIZE);
jaddstr(output_item, "encCiphertext", enc_cip_str);
char out_cip_str[OUT_CIPHER_SIZE * 2 + 1];
init_hexbytes_noT(out_cip_str, msg->shielded_outputs[i].out_ciphertext, OUT_CIPHER_SIZE);
jaddstr(output_item, "outCiphertext", out_cip_str);
jaddi(v_shielded_output, output_item);
char proof_str[GROTH_PROOF_SIZE * 2 + 1];
init_hexbytes_noT(proof_str, msg->shielded_outputs[i].zkproof, GROTH_PROOF_SIZE);
jaddstr(output_item, "proof", proof_str);
}
}
}
if (json != 0) {
cJSON_AddItemToObject(json, "vShieldedSpend", v_shielded_spend);
cJSON_AddItemToObject(json, "vShieldedOutput", v_shielded_output);
}
}
}
//printf("lock_time.%08x len.%d\n",msg->lock_time,len);
if ((coin->sapling != 0) && msg->version > 1)
{
struct dragon_msgjoinsplit joinsplit; uint8_t joinsplitpubkey[33], joinsplitsig[64];
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->numjoinsplits), &msg->numjoinsplits);
if (msg->numjoinsplits > 0)
{
for (i = 0; i<msg->numjoinsplits; i++)
len += dragon_rwjoinsplit(rwflag, &serialized[len], &joinsplit, zksnark_proof_size);
if (rwflag != 0)
{
memset(joinsplitpubkey, 0, sizeof(joinsplitpubkey)); // for now
memset(joinsplitsig, 0, sizeof(joinsplitsig)); // set to actuals
memcpy(&serialized[len], joinsplitpubkey + 1, 32), len += 32;
memcpy(&serialized[len], joinsplitsig, 64), len += 64;
}
else
{
joinsplitpubkey[0] = 0x02; // need to verify its not 0x03
memcpy(joinsplitpubkey + 1, &serialized[len], 32), len += 32;
memcpy(joinsplitsig, &serialized[len], 64), len += 64;
}
}
}
if ((coin->sapling != 0) && msg->version >= 4 && !(msg->shielded_spend_num == 0 && msg->shielded_output_num == 0)) {
if (rwflag == 1) {
memcpy(&serialized[len], msg->binding_sig, 64), len += 64;
}
else {
memcpy(msg->binding_sig, &serialized[len], 64), len += 64;
}
if (json != 0) {
char binding_sig_str[64 * 2 + 1];
init_hexbytes_noT(binding_sig_str, msg->binding_sig, 64);
jaddstr(json, "bindingSig", binding_sig_str);
}
}
if ( strcmp(coin->symbol,"VPN") == 0 )
{
uint16_t ddosflag = 0;
len += dragon_rwnum(rwflag,&serialized[len],sizeof(ddosflag),&ddosflag);
for (i=0; serialized[len]!=0&&len<maxsize; len++,i++) // eat null terminated string
{
if ( rwflag == 0 )
serialized[len] = vpnstr[i];
else vpnstr[i] = serialized[len];
}
if ( rwflag == 0 )
serialized[len] = 0;
else vpnstr[i] = 0;
len++;
if ( json != 0 )
{
jaddnum(json,"ddosflag",ddosflag);
jaddstr(json,"vpnstr",vpnstr);
}
}
if ( sigser != 0 && vinarray != 0 )
{
for (i=0; i<msg->tx_in; i++)
{
memset(sigtxid.bytes,0,sizeof(sigtxid));
if ( vins != 0 && jitem(vins,i) != 0 )
{
uint32_t sighash = SIGHASH_ALL; // in marketmaker we use LP_sighash(symbol,zcash) to determine sighash (depends on zcash type), but here SIGHASH_ALL is enough for now
dragon_vinobjset(&msg->vins[i],jitem(vins,i),spendscript,sizeof(spendscript));
struct supernet_info *myinfo = SuperNET_MYINFO(0); cJSON *jtxout = 0;
jtxout = dpow_gettxout(0, coin, msg->vins[i].prev_hash, msg->vins[i].prev_vout);
//spendamount = jdouble(jtxout, "value") * SATOSHIDEN;
spendamount = amountfromvalue(jdouble(jtxout, "value"));
//printf("JSON (txout): %s\n", cJSON_Print(jtxout));
//printf("spendamount = %.8f\n", dstr(spendamount));
free(jtxout);
sigtxid = bitcoin_sigtxid(coin,height,sigser,maxsize*2,msg,i,msg->vins[i].spendscript,msg->vins[i].spendlen,spendamount, SIGHASH_ALL,vpnstr,suppress_pubkeys);
// printf("after vini.%d vinscript.%p spendscript.%p spendlen.%d (%s)\n",i,msg->vins[i].vinscript,msg->vins[i].spendscript,msg->vins[i].spendlen,jprint(jitem(vins,i),0));
if ( dragon_vinarray_check(vinarray,msg->vins[i].prev_hash,msg->vins[i].prev_vout) < 0 )
jaddi(vinarray,dragon_vinjson(coin,&msg->vins[i],sigtxid));
if ( msg->vins[i].spendscript == spendscript )
msg->vins[i].spendscript = 0;
} else if ( dragon_vinarray_check(vinarray,msg->vins[i].prev_hash,msg->vins[i].prev_vout) < 0 )
jaddi(vinarray,dragon_vinjson(coin,&msg->vins[i],sigtxid));
}
free(sigser);
jadd(json,"vin",vinarray);
msg->tx_in = cJSON_GetArraySize(vinarray);
jaddnum(json,"numvins",msg->tx_in);
}
if ( voutarray != 0 )
{
jadd(json,"vout",voutarray);
jaddnum(json,"numvouts",msg->tx_out);
}
*txidp = bits256_doublesha256(txidstr,txstart,len);
if ( json != 0 )
{
jaddnum(json,"locktime",msg->lock_time);
jaddnum(json,"size",len);
jaddbits256(json,"txid",*txidp);
//printf("TX.(%s) %p\n",jprint(json,0),json);
}
msg->allocsize = len;
return(len);
}
bits256 dragon_parsetxobj(struct supernet_info *myinfo,struct dragon_info *coin,int32_t *txstartp,uint8_t *serialized,int32_t maxsize,struct dragon_msgtx *msg,cJSON *txobj,struct vin_info *V)
{
int32_t i,n,numvins,numvouts,len = 0,rwflag=1; cJSON *array=0; bits256 txid; char vpnstr[64];
memset(&txid,0,sizeof(txid));
memset(msg,0,sizeof(*msg));
*txstartp = 0;
if ( txobj == 0 )
return(txid);
vpnstr[0] = 0;
if ( (msg->version= juint(txobj,"version")) == 0 )
msg->version = 1;
if (is_cJSON_True(cJSON_GetObjectItem(txobj, "overwintered"))) {
msg->version = 1 << 31 | msg->version;
//msg->version_group_id = (uint32_t)strtol(jstr(txobj, "versiongroupid"), NULL, 16);
msg->version_group_id = strtoul(jstr(txobj, "versiongroupid"), NULL, 16);
msg->expiry_height = juint(txobj, "expiryheight");
if (msg->version >= 4) {
msg->value_balance = (uint64_t)(jdouble(txobj, "valueBalance") * SATOSHIDEN);
}
}
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->version),&msg->version);
if (is_cJSON_True(cJSON_GetObjectItem(txobj, "overwintered"))) {
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->version_group_id), &msg->version_group_id);
}
if ( coin->chain->isPoS != 0 )
{
if ( (msg->timestamp= juint(txobj,"timestamp")) == 0 )
msg->timestamp = (uint32_t)time(NULL);
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->timestamp),&msg->timestamp);
}
if ( (array= jarray(&numvins,txobj,"vin")) != 0 )
{
msg->tx_in = numvins;
len += dragon_rwvarint32(rwflag,&serialized[len],&msg->tx_in);
if ( len + sizeof(struct dragon_msgvin)*msg->tx_in > maxsize )
return(txid);
maxsize -= (sizeof(struct dragon_msgvin) * msg->tx_in);
msg->vins = (struct dragon_msgvin *)&serialized[maxsize];
memset(msg->vins,0,sizeof(struct dragon_msgvin) * msg->tx_in);
if ( msg->tx_in > 0 && msg->tx_in*sizeof(struct dragon_msgvin) < maxsize )
{
for (i=0; i<msg->tx_in; i++)
{
n = dragon_parsevinobj(myinfo,coin,&serialized[len],maxsize,&msg->vins[i],jitem(array,i),V!=0?&V[i]:0);
//for (j=0; j<8; j++)
// printf("%02x",serialized[len+j]);
//char str[65]; printf(" <- vinobj.%d starts offset.%d %s\n",i,len,bits256_str(str,msg->vins[i].prev_hash));
len += n;
}
}
}
if ( (array= jarray(&numvouts,txobj,"vout")) != 0 )
{
msg->tx_out = numvouts;
len += dragon_rwvarint32(rwflag,&serialized[len],&msg->tx_out);
if ( len + sizeof(struct dragon_msgvout)*msg->tx_out > maxsize )
return(txid);
maxsize -= (sizeof(struct dragon_msgvout) * msg->tx_out);
msg->vouts = (struct dragon_msgvout *)&serialized[maxsize];
memset(msg->vouts,0,sizeof(struct dragon_msgvout) * msg->tx_out);
if ( msg->tx_out > 0 && msg->tx_out*sizeof(struct dragon_msgvout) < maxsize )
{
for (i=0; i<msg->tx_out; i++)
{
//printf("parsetxobj parsevout.%d starts %d\n",i,len);
len += dragon_parsevoutobj(coin,&serialized[len],maxsize,&msg->vouts[i],jitem(array,i));
}
}
}
msg->lock_time = jint(txobj,"locktime");
len += dragon_rwnum(rwflag,&serialized[len],sizeof(msg->lock_time),&msg->lock_time);
if (is_cJSON_True(cJSON_GetObjectItem(txobj, "overwintered"))) {
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->expiry_height), &msg->expiry_height);
if (msg->version >= 4) {
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->value_balance), &msg->value_balance);
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->shielded_spend_num), &msg->shielded_spend_num);
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->shielded_output_num), &msg->shielded_output_num);
}
len += dragon_rwnum(rwflag, &serialized[len], sizeof(msg->numjoinsplits), &msg->numjoinsplits);
}
//msg->txid = jbits256(txobj,"txid");
*txstartp = 0;
msg->allocsize = len;
msg->txid = txid = bits256_doublesha256(0,serialized,len); // bits256_calctxid(coin->symbol, serialized, len);
return(txid);
}
char *dragon_rawtxbytes(struct dragon_info *coin,int32_t height,cJSON *json,struct dragon_msgtx *msgtx,int32_t suppress_pubkeys)
{
int32_t n; char *txbytes = 0,vpnstr[64]; uint8_t *serialized;
serialized = malloc(DRAGON_MAXPACKETSIZE);
vpnstr[0] = 0;
//char str[65]; printf("%d of %d: %s\n",i,msg.txn_count,bits256_str(str,tx.txid));
if ( (n= dragon_rwmsgtx(coin,height,1,json,serialized,DRAGON_MAXPACKETSIZE,msgtx,&msgtx->txid,vpnstr,0,0,0,suppress_pubkeys)) > 0 )
{
txbytes = malloc(n*2+1);
init_hexbytes_noT(txbytes,serialized,n);
}
free(serialized);
return(txbytes);
}
char *bitcoin_json2hex(struct supernet_info *myinfo,struct dragon_info *coin,bits256 *txidp,cJSON *txjson,struct vin_info *V)
{
int32_t txstart; uint8_t *serialized; struct dragon_msgtx msgtx; char *txbytes = 0;
if ( txjson == 0 )
{
memset(txidp,0,sizeof(*txidp));
return(0);
}
serialized = malloc(DRAGON_MAXPACKETSIZE*1.5);
*txidp = dragon_parsetxobj(myinfo,coin,&txstart,serialized,DRAGON_MAXPACKETSIZE*1.5,&msgtx,txjson,V);
if ( msgtx.allocsize > 0 )
{
txbytes = malloc(msgtx.allocsize*2 + 1);
init_hexbytes_noT(txbytes,&serialized[txstart],msgtx.allocsize);
} else printf("bitcoin_txtest: zero msgtx allocsize.(%s)\n",jprint(txjson,0));
free(serialized);
return(txbytes);
}
cJSON *bitcoin_data2json(struct dragon_info *coin,int32_t height,bits256 *txidp,struct dragon_msgtx *msgtx,uint8_t *extraspace,int32_t extralen,uint8_t *serialized,int32_t len,cJSON *vins,int32_t suppress_pubkeys)
{
int32_t n; char vpnstr[64]; struct dragon_msgtx M; cJSON *txobj;
if ( coin == 0 || serialized == 0 )
return(0);
txobj = cJSON_CreateObject();
if ( msgtx == 0 )
msgtx = &M;
memset(msgtx,0,sizeof(M));
vpnstr[0] = 0;
memset(txidp,0,sizeof(*txidp));
if ( (n= dragon_rwmsgtx(coin,height,0,txobj,serialized,len,msgtx,txidp,vpnstr,extraspace,extralen,vins,suppress_pubkeys)) <= 0 )
{
printf("errortxobj.(%s)\n",jprint(txobj,0));
free_json(txobj);
txobj = cJSON_CreateObject();
jaddstr(txobj,"error","couldnt decode transaction");
jaddstr(txobj,"coin",coin->symbol);
}
//printf("msgtx.(%s)\n",jprint(txobj,0));
if ( n != len )
{
int32_t i;
for (i=0; i<=len; i++)
printf("%02x",serialized[i]);
printf(" data2json n.%d vs len.%d\n",n,len);
}
return(txobj);
}
cJSON *bitcoin_hex2json(struct dragon_info *coin,int32_t height,bits256 *txidp,struct dragon_msgtx *msgtx,char *txbytes,uint8_t *extraspace,int32_t extralen,uint8_t *origserialized,cJSON *vins,int32_t suppress_pubkeys)
{
int32_t len; uint8_t *serialized; cJSON *txobj;
if ( coin == 0 || txbytes == 0 )
return(0);
len = (int32_t)strlen(txbytes) >> 1;
if ( (serialized= origserialized) == 0 )
serialized = calloc(1,len+4096);
decode_hex(serialized,len,txbytes);
txobj = bitcoin_data2json(coin,height,txidp,msgtx,extraspace,extralen,serialized,len,vins,suppress_pubkeys);
if ( serialized != origserialized )
free(serialized);
return(txobj);
}
int32_t dragon_msgtx_Vset(struct dragon_info *coin,uint8_t *serialized,int32_t maxlen,struct dragon_msgtx *msgtx,struct vin_info *V)
{
int32_t vini,j,scriptlen,p2shlen,userdatalen,siglen,plen,need_op0=0,len = 0; uint8_t *script,*redeemscript=0,*userdata=0; struct vin_info *vp;
for (vini=0; vini<msgtx->tx_in; vini++)
{
vp = &V[vini];
if ( (userdatalen= vp->userdatalen) == 0 )
{
userdatalen = vp->userdatalen = msgtx->vins[vini].userdatalen;
userdata = msgtx->vins[vini].userdata;
} else userdata = vp->userdata;
if ( (p2shlen= vp->p2shlen) == 0 )
{
p2shlen = vp->p2shlen = msgtx->vins[vini].p2shlen;
redeemscript = msgtx->vins[vini].redeemscript;
}
else
{
redeemscript = vp->p2shscript;
msgtx->vins[vini].redeemscript = redeemscript;
}
if ( msgtx->vins[vini].spendlen > 33 && msgtx->vins[vini].spendscript[msgtx->vins[vini].spendlen - 1] == SCRIPT_OP_CHECKMULTISIG )
{
need_op0 = 1;
printf("found multisig spendscript\n");
}
if ( redeemscript != 0 && p2shlen > 33 && redeemscript[p2shlen - 1] == SCRIPT_OP_CHECKMULTISIG )
{
need_op0 = 1;
//printf("found multisig redeemscript\n");
}
msgtx->vins[vini].vinscript = script = &serialized[len];
msgtx->vins[vini].vinscript[0] = 0;
scriptlen = need_op0;
for (j=0; j<vp->N; j++)
{
if ( (siglen= vp->signers[j].siglen) > 0 )
{
script[scriptlen++] = siglen;
memcpy(&script[scriptlen],vp->signers[j].sig,siglen);
scriptlen += siglen;
}
}
msgtx->vins[vini].scriptlen = scriptlen;
if ( vp->suppress_pubkeys == 0 && (vp->N > 1 || bitcoin_pubkeylen(&vp->spendscript[1]) != vp->spendscript[0] || vp->spendscript[vp->spendlen-1] != 0xac) )
{
for (j=0; j<vp->N; j++)
{
if ( (plen= bitcoin_pubkeylen(vp->signers[j].pubkey)) > 0 )
{
script[scriptlen++] = plen;
memcpy(&script[scriptlen],vp->signers[j].pubkey,plen);
scriptlen += plen;
}
}
msgtx->vins[vini].scriptlen = scriptlen;
}
if ( userdatalen != 0 )
{
memcpy(&script[scriptlen],userdata,userdatalen);
msgtx->vins[vini].userdata = &script[scriptlen];
msgtx->vins[vini].userdatalen = userdatalen;
scriptlen += userdatalen;
}
//printf("USERDATALEN.%d scriptlen.%d redeemlen.%d\n",userdatalen,scriptlen,p2shlen);
if ( p2shlen != 0 )
{
if ( p2shlen < 76 )
script[scriptlen++] = p2shlen;
else if ( p2shlen <= 0xff )
{
script[scriptlen++] = 0x4c;
script[scriptlen++] = p2shlen;
}
else if ( p2shlen <= 0xffff )
{
script[scriptlen++] = 0x4d;
script[scriptlen++] = (p2shlen & 0xff);
script[scriptlen++] = ((p2shlen >> 8) & 0xff);
} else return(-1);
msgtx->vins[vini].p2shlen = p2shlen;
memcpy(&script[scriptlen],redeemscript,p2shlen);
scriptlen += p2shlen;
}
len += scriptlen;
}
if ( (0) )
{
int32_t i; for (i=0; i<len; i++)
printf("%02x",script[i]);
printf(" <-script len.%d scriptlen.%d p2shlen.%d user.%d\n",len,scriptlen,p2shlen,userdatalen);
}
return(len);
}
int32_t bitcoin_verifyvins(struct dragon_info *coin,int32_t height,bits256 *signedtxidp,char **signedtx,struct dragon_msgtx *msgtx,uint8_t *serialized,int32_t maxlen,struct vin_info *V,uint32_t sighash,int32_t signtx,int32_t suppress_pubkeys)
{
bits256 sigtxid; uint8_t *sig,*script; struct vin_info *vp; char vpnstr[64]; int32_t scriptlen,complete=0,j,vini=0,flag=0,siglen,numvouts,numsigs; uint64_t spendamount;
numvouts = msgtx->tx_out;
vpnstr[0] = 0;
*signedtx = 0;
memset(signedtxidp,0,sizeof(*signedtxidp));
for (vini=0; vini<msgtx->tx_in; vini++)
{
if ( V->p2shscript[0] != 0 && V->p2shlen != 0 )
{
script = V->p2shscript;
scriptlen = V->p2shlen;
//printf("V->p2shlen.%d\n",V->p2shlen);
}
else
{
script = msgtx->vins[vini].spendscript;
scriptlen = msgtx->vins[vini].spendlen;
}
struct supernet_info *myinfo = SuperNET_MYINFO(0); cJSON *jtxout = 0;
jtxout = dpow_gettxout(0, coin, msgtx->vins[vini].prev_hash, msgtx->vins[vini].prev_vout);
//spendamount = jdouble(jtxout, "value") * SATOSHIDEN;
spendamount = amountfromvalue(jdouble(jtxout, "value"));
//printf("JSON (txout): %s\n", cJSON_Print(jtxout));
//printf("spendamount = %.8f\n", dstr(spendamount));
free(jtxout);
sigtxid = bitcoin_sigtxid(coin,height,serialized,maxlen,msgtx,vini,script,scriptlen,spendamount,sighash,vpnstr,suppress_pubkeys);
if ( bits256_nonz(sigtxid) != 0 )
{
vp = &V[vini];
vp->sigtxid = sigtxid;
for (j=numsigs=0; j<vp->N; j++)
{
sig = vp->signers[j].sig;
siglen = vp->signers[j].siglen;
if ( signtx != 0 && bits256_nonz(vp->signers[j].privkey) != 0 )
{
siglen = bitcoin_sign(coin->ctx,coin->symbol,sig,sigtxid,vp->signers[j].privkey,0);
//if ( (plen= bitcoin_pubkeylen(vp->signers[j].pubkey)) <= 0 )
bitcoin_pubkey33(coin->ctx,vp->signers[j].pubkey,vp->signers[j].privkey);
sig[siglen++] = sighash;
vp->signers[j].siglen = siglen;
/*char str[65]; printf("SIGTXID.(%s) ",bits256_str(str,sigtxid));
int32_t i; for (i=0; i<siglen; i++)
printf("%02x",sig[i]);
printf(" sig, ");
for (i=0; i<plen; i++)
printf("%02x",vp->signers[j].pubkey[i]);
// s2 = 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1;
printf(" SIGNEDTX.[%02x] siglen.%d priv.%s\n",sig[siglen-1],siglen,bits256_str(str,vp->signers[j].privkey));*/
}
if ( sig == 0 || siglen == 0 )
{
memset(vp->signers[j].pubkey,0,sizeof(vp->signers[j].pubkey));
continue;
}
if ( bitcoin_verify(coin->ctx,sig,siglen-1,sigtxid,vp->signers[j].pubkey,bitcoin_pubkeylen(vp->signers[j].pubkey)) < 0 )
{
int32_t k; for (k=0; k<bitcoin_pubkeylen(vp->signers[j].pubkey); k++)
printf("%02x",vp->signers[j].pubkey[k]);
printf(" SIG.%d.%d ERROR siglen.%d\n",vini,j,siglen);
}
else
{
flag++;
numsigs++;
/*int32_t z;
for (z=0; z<siglen-1; z++)
printf("%02x",sig[z]);
printf(" <- sig[%d]\n",j);
for (z=0; z<33; z++)
printf("%02x",vp->signers[j].pubkey[z]);
printf(" <- pub, SIG.%d.%d VERIFIED numsigs.%d vs M.%d\n",vini,j,numsigs,vp->M);*/
}
}
if ( numsigs >= vp->M )
complete = 1;
}
}
dragon_msgtx_Vset(coin,serialized,maxlen,msgtx,V);
cJSON *txobj = cJSON_CreateObject();
*signedtx = dragon_rawtxbytes(coin,height,txobj,msgtx,suppress_pubkeys);
//printf("SIGNEDTX.(%s)\n",jprint(txobj,1));
*signedtxidp = msgtx->txid;
return(complete);
}
int32_t dragon_vininfo_create(struct supernet_info *myinfo,struct dragon_info *coin,uint8_t *serialized,int32_t maxsize,struct dragon_msgtx *msgtx,cJSON *vins,int32_t numinputs,struct vin_info *V)
{
struct dragon_outpoint outpt; int32_t i,plen,finalized = 1,len = 0; struct vin_info *vp; struct dragon_waccount *wacct; struct dragon_waddress *waddr; uint32_t sigsize,pubkeysize,p2shsize,userdatalen;
msgtx->tx_in = numinputs;
maxsize -= (sizeof(struct dragon_msgvin) * msgtx->tx_in);
msgtx->vins = (struct dragon_msgvin *)&serialized[maxsize];
memset(msgtx->vins,0,sizeof(struct dragon_msgvin) * msgtx->tx_in);
if ( msgtx->tx_in > 0 && msgtx->tx_in*sizeof(struct dragon_msgvin) < maxsize )
{
for (i=0; i<msgtx->tx_in; i++)
{
vp = &V[i];
//printf("VINS.(%s)\n",jprint(jitem(vins,i),0));
len += dragon_parsevinobj(myinfo,coin,&serialized[len],maxsize,&msgtx->vins[i],jitem(vins,i),vp);
if ( msgtx->vins[i].sequence < DRAGON_SEQUENCEID_FINAL )
finalized = 0;
if ( msgtx->vins[i].spendscript == 0 )
{
if ( dragon_RTunspentindfind(myinfo,coin,&outpt,vp->coinaddr,vp->spendscript,&vp->spendlen,&vp->amount,&vp->height,msgtx->vins[i].prev_hash,msgtx->vins[i].prev_vout,coin->bundlescount-1,0) == 0 )
{
vp->unspentind = outpt.unspentind;
msgtx->vins[i].spendscript = vp->spendscript;
msgtx->vins[i].spendlen = vp->spendlen;
vp->hashtype = dragon_vinscriptparse(coin,vp,&sigsize,&pubkeysize,&p2shsize,&userdatalen,vp->spendscript,vp->spendlen);
vp->userdatalen = userdatalen;
printf("V %.8f (%s) spendscript.[%d] userdatalen.%d\n",dstr(vp->amount),vp->coinaddr,vp->spendlen,userdatalen);
}
}
else
{
memcpy(vp->spendscript,msgtx->vins[i].spendscript,msgtx->vins[i].spendlen);
vp->spendlen = msgtx->vins[i].spendlen;
_dragon_calcrmd160(coin,vp);
if ( (plen= bitcoin_pubkeylen(vp->signers[0].pubkey)) > 0 )
bitcoin_address(vp->coinaddr,coin->chain->pubtype,vp->signers[0].pubkey,plen);
}
if ( vp->M == 0 && vp->N == 0 )
vp->M = vp->N = 1;
if ( vp->coinaddr[i] != 0 && (waddr= dragon_waddresssearch(myinfo,&wacct,vp->coinaddr)) != 0 )
{
vp->signers[0].privkey = waddr->privkey;
if ( (plen= bitcoin_pubkeylen(waddr->pubkey)) != vp->spendscript[1] || vp->spendscript[vp->spendlen-1] != 0xac )
{
if ( plen > 0 && plen < sizeof(vp->signers[0].pubkey) )
memcpy(vp->signers[0].pubkey,waddr->pubkey,plen);
}
}
}
}
/*for (i=0; i<msgtx->tx_out; i++)
{
if ( msgtx->vouts[i].pk_script != 0 )
{
for (j=0; j<msgtx->vouts[i].pk_scriptlen; j++)
printf("%02x",msgtx->vouts[i].pk_script[j]);
printf(" pk_script[%d]\n",i);
}
}*/
return(finalized);
}
void dragon_ensure_privkey(struct supernet_info *myinfo,struct dragon_info *coin,bits256 privkey)
{
uint8_t pubkey33[33]; struct dragon_waccount *wacct; struct dragon_waddress *waddr,addr; char coinaddr[128];
bitcoin_pubkey33(myinfo->ctx,pubkey33,privkey);
bitcoin_address(coinaddr,coin->chain->pubtype,pubkey33,33);
//printf("privkey for (%s)\n",coinaddr);
if ( myinfo->expiration != 0 && ((waddr= dragon_waddresssearch(myinfo,&wacct,coinaddr)) == 0 || bits256_nonz(waddr->privkey) == 0) )
{
if ( waddr == 0 )
{
memset(&addr,0,sizeof(addr));
dragon_waddresscalc(myinfo,coin->chain->pubtype,coin->chain->wiftype,&addr,privkey);
if ( (wacct= dragon_waccountfind(myinfo,"default")) != 0 )
waddr = dragon_waddressadd(myinfo,coin,wacct,&addr,0);
}
if ( waddr != 0 )
{
waddr->privkey = privkey;
if ( bitcoin_priv2wif(waddr->wifstr,waddr->privkey,coin->chain->wiftype) > 0 )
{
if ( (0) && waddr->wiftype != coin->chain->wiftype )
printf("ensurepriv warning: mismatched wiftype %02x != %02x\n",waddr->wiftype,coin->chain->wiftype);
if ( (0) && waddr->addrtype != coin->chain->pubtype )
printf("ensurepriv warning: mismatched addrtype %02x != %02x\n",waddr->addrtype,coin->chain->pubtype);
}
}
}
}
char *_setVsigner(struct dragon_info *coin,struct vin_info *V,int32_t ind,char *pubstr,char *wifstr)
{
uint8_t addrtype;
decode_hex(V->signers[ind].pubkey,(int32_t)strlen(pubstr)/2,pubstr);
bitcoin_wif2priv(&addrtype,&V->signers[ind].privkey,wifstr);
if ( addrtype != coin->chain->pubtype )
return(clonestr("{\"error\":\"invalid wifA\"}"));
else return(0);
}
int32_t bitcoin_txaddspend(struct dragon_info *coin,cJSON *txobj,char *destaddress,uint64_t satoshis)
{
uint8_t outputscript[128],addrtype,rmd160[20]; int32_t scriptlen;
if ( bitcoin_validaddress(coin,destaddress) == 0 && satoshis != 0 )
{
bitcoin_addr2rmd160(&addrtype,rmd160,destaddress);
scriptlen = bitcoin_standardspend(outputscript,0,rmd160);
bitcoin_txoutput(txobj,outputscript,scriptlen,satoshis);
return(0);
} else return(-1);
}
cJSON *bitcoin_txscript(struct dragon_info *coin,char *asmstr,char **vardata,int32_t numvars)
{
int32_t i; cJSON *scriptjson,*array;
scriptjson = cJSON_CreateObject();
jaddstr(scriptjson,"asm",asmstr);
jaddnum(scriptjson,"numvars",numvars);
if ( numvars > 0 )
{
array = cJSON_CreateArray();
for (i=0; i<numvars; i++)
jaddistr(array,vardata[i]);
jadd(scriptjson,"args",array);
}
return(scriptjson);
}
cJSON *dragon_scriptpubkeys(struct dragon_info *coin,uint8_t *script,int32_t scriptlen,bits256 txid,int16_t vout,uint32_t sequenceid)
{
int32_t type,i,n,plen; struct vin_info V; cJSON *pubkeys; char pubkeystr[256];
pubkeys = cJSON_CreateArray();
if ( (type= dragon_calcrmd160(coin,0,&V,script,scriptlen,txid,vout,sequenceid)) >= 0 )
{
if ( (n= V.N) == 0 )
n = 1;
for (i=0; i<n; i++)
{
if ( (plen= bitcoin_pubkeylen(V.signers[i].pubkey)) > 0 )
init_hexbytes_noT(pubkeystr,V.signers[i].pubkey,plen);
else pubkeystr[0] = 0;
jaddistr(pubkeys,pubkeystr);
}
}
return(pubkeys);
}
void dragon_addscript(struct dragon_info *coin,cJSON *dest,uint8_t *script,int32_t scriptlen,char *fieldname)
{
char *scriptstr,scriptbuf[8192+256]; int32_t maxlen; cJSON *scriptobj;
if ( scriptlen < 0 || scriptlen > DRAGON_MAXSCRIPTSIZE || scriptlen > sizeof(scriptbuf) )
return;
scriptstr = scriptbuf, maxlen = sizeof(scriptbuf);
init_hexbytes_noT(scriptstr,script,scriptlen);
//if ( strcmp(fieldname,"userdata") == 0 )
// printf("SCRIPT_USERDATA.(%s)\n",scriptstr);
if ( strcmp(fieldname,"coinbase") == 0 )
jaddstr(dest,"coinbase",scriptstr);
else
{
scriptobj = cJSON_CreateObject();
jaddstr(scriptobj,"hex",scriptstr);
dragon_expandscript(coin,scriptstr,maxlen,script,scriptlen);
if ( scriptstr[0] != 0 )
jaddstr(scriptobj,"asm",scriptstr);
if ( scriptstr != scriptbuf )
free(scriptstr);
jadd(dest,fieldname,scriptobj);
}
}
cJSON *dragon_pubkeysjson(uint8_t *pubkeyptrs[],int32_t numpubkeys)
{
int32_t i,plen; char pubkeystr[256]; cJSON *pubkeysjson = cJSON_CreateArray();
for (i=0; i<numpubkeys; i++)
{
if ( pubkeyptrs != 0 && (plen= bitcoin_pubkeylen(pubkeyptrs[i])) > 0 )
init_hexbytes_noT(pubkeystr,pubkeyptrs[i],plen);
else pubkeystr[0] = 0;
jaddistr(pubkeysjson,pubkeystr);
}
return(pubkeysjson);
}
cJSON *bitcoin_txinput(struct dragon_info *coin,cJSON *txobj,bits256 txid,int32_t vout,uint32_t sequenceid,uint8_t *spendscript,int32_t spendlen,uint8_t *redeemscript,int32_t p2shlen,uint8_t *pubkeys[],int32_t numpubkeys,uint8_t *sig,int32_t siglen)
{
cJSON *item,*vins; char p2shscriptstr[DRAGON_MAXSCRIPTSIZE*2+1]; uint8_t *script,len=0;
vins = jduplicate(jobj(txobj,"vin"));
jdelete(txobj,"vin");
item = cJSON_CreateObject();
if ( sig != 0 && siglen > 0 )
dragon_addscript(coin,item,sig,siglen,"scriptSig");
if ( spendscript != 0 && spendscript > 0 )
{
dragon_addscript(coin,item,spendscript,spendlen,"scriptPubKey");
script = spendscript, len = spendlen;
}
else if ( redeemscript != 0 && p2shlen > 0 )
{
init_hexbytes_noT(p2shscriptstr,redeemscript,p2shlen);
jaddstr(item,"redeemScript",p2shscriptstr);
script = redeemscript, len = p2shlen;
} else script = 0;
if ( script != 0 && numpubkeys == 0 )
jadd(item,"pubkeys",dragon_scriptpubkeys(coin,script,len,txid,vout,sequenceid));
else if ( pubkeys != 0 && numpubkeys > 0 )
jadd(item,"pubkeys",dragon_pubkeysjson(pubkeys,numpubkeys));
jaddbits256(item,"txid",txid);
jaddnum(item,"vout",vout);
jaddnum(item,"sequence",sequenceid);
jaddi(vins,item);
jadd(txobj,"vin",vins);
//printf("addvin -> (%s)\n",jprint(txobj,0));
return(txobj);
}
cJSON *bitcoin_txcreate(char *symbol, int32_t isPoS, int64_t locktime, uint32_t txversion, uint32_t timestamp)
{
cJSON *json = cJSON_CreateObject();
jaddnum(json, "version", txversion);
if (txversion >= 3) {
cJSON_AddBoolToObject(json, "overwintered", 1);
jaddnum(json, "expiryheight", 0);
if (txversion == 3) {
jaddstr(json, "versiongroupid", "03c48270");
}
else if (txversion == 4) {
jaddstr(json, "versiongroupid", "892f2085");
jaddnum(json, "valueBalance", 0.);
jadd(json, "vShieldedSpend", cJSON_CreateArray());
jadd(json, "vShieldedOutput", cJSON_CreateArray());
}
}
if (locktime == 0 && strcmp(symbol, "KMD") == 0)
locktime = (uint32_t)time(NULL) - 55;
jaddnum(json, "locktime", locktime);
if (isPoS != 0)
jaddnum(json, "timestamp", timestamp == 0 ? time(NULL) : timestamp);
jadd(json, "vin", cJSON_CreateArray());
jadd(json, "vout", cJSON_CreateArray());
return(json);
}
cJSON *bitcoin_txoutput(cJSON *txobj,uint8_t *paymentscript,int32_t len,uint64_t satoshis)
{
char *hexstr; cJSON *item,*skey,*vouts = jduplicate(jobj(txobj,"vout"));
jdelete(txobj,"vout");
item = cJSON_CreateObject();
jadd64bits(item,"satoshis",satoshis);
skey = cJSON_CreateObject();
hexstr = malloc(len*2 + 1);
init_hexbytes_noT(hexstr,paymentscript,len);
jaddstr(skey,"hex",hexstr);
//printf("addoutput.(%s %s)\n",hexstr,jprint(skey,0));
free(hexstr);
jadd(item,"scriptPubkey",skey);
jaddi(vouts,item);
jadd(txobj,"vout",vouts);
return(txobj);
}
int32_t dragon_interpreter(struct dragon_info *coin,cJSON *logarray,int64_t nLockTime,struct vin_info *V,int32_t numvins)
{
uint8_t script[DRAGON_MAXSCRIPTSIZE],*activescript,savescript[DRAGON_MAXSCRIPTSIZE]; char str[DRAGON_MAXSCRIPTSIZE*2+1]; int32_t vini,scriptlen,activescriptlen,savelen,errs = 0; cJSON *spendscript,*item=0;
for (vini=0; vini<numvins; vini++)
{
savelen = V[vini].spendlen;
memcpy(savescript,V[vini].spendscript,savelen);
if ( V[vini].p2shlen > 0 )
{
activescript = V[vini].p2shscript;
activescriptlen = V[vini].p2shlen;
}
else
{
activescript = V[vini].spendscript;
activescriptlen = V[vini].spendlen;
}
memcpy(V[vini].spendscript,activescript,activescriptlen);
V[vini].spendlen = activescriptlen;
spendscript = dragon_spendasm(coin,activescript,activescriptlen);
if ( activescriptlen < 16 )
continue;
//printf("interpreter.(%s)\n",jprint(spendscript,0));
if ( (scriptlen= bitcoin_assembler(coin,logarray,script,spendscript,1,nLockTime,&V[vini])) < 0 )
{
//printf("bitcoin_assembler error scriptlen.%d\n",scriptlen);
errs++;
}
else if ( scriptlen != activescriptlen || memcmp(script,activescript,scriptlen) != 0 )
{
if ( logarray != 0 )
{
item = cJSON_CreateObject();
jaddstr(item,"error","script reconstruction failed");
}
init_hexbytes_noT(str,activescript,activescriptlen);
//printf("activescript.(%s)\n",str);
if ( logarray != 0 && item != 0 )
jaddstr(item,"original",str);
init_hexbytes_noT(str,script,scriptlen);
//printf("reconstructed.(%s)\n",str);
if ( logarray != 0 )
{
jaddstr(item,"reconstructed",str);
jaddi(logarray,item);
} else printf(" scriptlen mismatch.%d vs %d or miscompare\n",scriptlen,activescriptlen);
errs++;
}
memcpy(V[vini].spendscript,savescript,savelen);
V[vini].spendlen = savelen;
}
if ( errs != 0 )
return(-errs);
if ( logarray != 0 )
{
item = cJSON_CreateObject();
jaddstr(item,"result","success");
jaddi(logarray,item);
}
return(0);
}
int32_t dragon_signrawtransaction(struct supernet_info *myinfo,struct dragon_info *coin,int32_t height,struct dragon_msgtx *msgtx,char **signedtxp,bits256 *signedtxidp,struct vin_info *V,int32_t numinputs,char *rawtx,cJSON *vins,cJSON *privkeysjson)
{
uint8_t *serialized,*serialized2,*serialized3,*serialized4,*extraspace,pubkeys[64][33]; int32_t finalized,i,len,n,z,plen,maxsize,complete = 0,extralen = 65536; char *privkeystr,*signedtx = 0; bits256 privkeys[64],privkey,txid; cJSON *item; cJSON *txobj = 0;
maxsize = 1000000;
memset(privkey.bytes,0,sizeof(privkey));
if ( rawtx != 0 && rawtx[0] != 0 && (len= (int32_t)strlen(rawtx)>>1) < maxsize )
{
serialized = malloc(maxsize);
serialized2 = malloc(maxsize);
serialized3 = malloc(maxsize);
serialized4 = malloc(maxsize);
extraspace = malloc(extralen);
memset(msgtx,0,sizeof(*msgtx));
decode_hex(serialized,len,rawtx);
// printf("call hex2json.(%s) vins.(%s)\n",rawtx,jprint(vins,0));
if ( (txobj= bitcoin_hex2json(coin,height,&txid,msgtx,rawtx,extraspace,extralen,serialized4,vins,V->suppress_pubkeys)) != 0 )
{
//printf("back from bitcoin_hex2json (%s)\n",jprint(vins,0));
} else fprintf(stderr,"no txobj from bitcoin_hex2json\n");
if ( (numinputs= cJSON_GetArraySize(vins)) > 0 )
{
//printf("numinputs.%d msgtx.%d\n",numinputs,msgtx->tx_in);
memset(msgtx,0,sizeof(*msgtx));
if ( dragon_rwmsgtx(coin,height,0,0,serialized,maxsize,msgtx,&txid,"",extraspace,65536,vins,V->suppress_pubkeys) > 0 && numinputs == msgtx->tx_in )
{
memset(pubkeys,0,sizeof(pubkeys));
memset(privkeys,0,sizeof(privkeys));
if ( (n= cJSON_GetArraySize(privkeysjson)) > 0 )
{
for (i=0; i<n; i++)
{
item = jitem(privkeysjson,i);
privkeystr = jstr(item,0);
if ( privkeystr == 0 || privkeystr[0] == 0 )
continue;
privkeys[i] = privkey = dragon_str2priv(myinfo,coin,privkeystr);
bitcoin_pubkey33(myinfo->ctx,pubkeys[i],privkey);
if ( bits256_nonz(privkey) != 0 )
dragon_ensure_privkey(myinfo,coin,privkey);
}
}
//printf("after privkeys tx_in.%d\n",msgtx->tx_in);
for (i=0; i<msgtx->tx_in; i++)
{
if ( msgtx->vins[i].p2shlen != 0 )
{
char coinaddr[64]; uint32_t userdatalen,sigsize,pubkeysize; uint8_t *userdata; int32_t j,k,hashtype,type,flag; struct vin_info mvin,mainvin; bits256 zero;
memset(zero.bytes,0,sizeof(zero));
coinaddr[0] = 0;
sigsize = 0;
flag = (msgtx->vins[i].vinscript[0] == 0);
type = bitcoin_scriptget(coin,&hashtype,&sigsize,&pubkeysize,&userdata,&userdatalen,&mainvin,msgtx->vins[i].vinscript+flag,msgtx->vins[i].scriptlen-flag,0);
//printf("i.%d flag.%d type.%d scriptlen.%d\n",i,flag,type,msgtx->vins[i].scriptlen);
if ( msgtx->vins[i].redeemscript != 0 )
{
//for (j=0; j<msgtx->vins[i].p2shlen; j++)
// printf("%02x",msgtx->vins[i].redeemscript[j]);
bitcoin_address(coinaddr,coin->chain->p2shtype,msgtx->vins[i].redeemscript,msgtx->vins[i].p2shlen);
type = dragon_calcrmd160(coin,0,&mvin,msgtx->vins[i].redeemscript,msgtx->vins[i].p2shlen,zero,0,0);
for (j=0; j<mvin.N; j++)
{
if ( V->suppress_pubkeys == 0 )
{
for (z=0; z<33; z++)
V[i].signers[j].pubkey[z] = mvin.signers[j].pubkey[z];
}
if ( flag != 0 && pubkeysize == 33 && mainvin.signers[0].siglen != 0 ) // jl777: need to generalize
{
if ( memcmp(mvin.signers[j].pubkey,mainvin.signers[0].pubkey,33) == 0 )
{
for (z=0; z<mainvin.signers[0].siglen; z++)
V[i].signers[j].sig[z] = mainvin.signers[0].sig[z];
V[i].signers[j].siglen = mainvin.signers[j].siglen;
printf("[%d].signer[%d] <- from mainvin.[0]\n",i,j);
}
}
for (k=0; k<n; k++)
{
if ( V[i].signers[j].siglen == 0 && memcmp(mvin.signers[j].pubkey,pubkeys[k],33) == 0 )
{
V[i].signers[j].privkey = privkeys[k];
if ( V->suppress_pubkeys == 0 )
{
for (z=0; z<33; z++)
V[i].signers[j].pubkey[z] = pubkeys[k][z];
}
//printf("%s -> V[%d].signer.[%d] <- privkey.%d\n",mvin.signers[j].coinaddr,i,j,k);
break;
}
}
}
//printf("type.%d p2sh.[%d] -> %s M.%d N.%d\n",type,i,mvin.coinaddr,mvin.M,mvin.N);
}
}
if ( i < V->N )
V->signers[i].privkey = privkey;
if ( i < numinputs )
V[i].signers[0].privkey = privkey;
plen = bitcoin_pubkeylen(V->signers[i].pubkey);
if ( V->suppress_pubkeys == 0 && plen <= 0 )
{
if ( i < numinputs )
{
for (z=0; z<plen; z++)
V[i].signers[0].pubkey[z] = V->signers[i].pubkey[z];
}
}
}
finalized = dragon_vininfo_create(myinfo,coin,serialized2,maxsize,msgtx,vins,numinputs,V);
//printf("finalized.%d\n",finalized);
if ( (complete= bitcoin_verifyvins(coin,height,signedtxidp,&signedtx,msgtx,serialized3,maxsize,V,SIGHASH_ALL,1,V->suppress_pubkeys)) > 0 && signedtx != 0 )
{
int32_t tmp; //char str[65];
if ( (tmp= dragon_interpreter(coin,0,dragon_lockval(finalized,jint(txobj,"locktime")),V,numinputs)) < 0 )
{
printf("dragon_interpreter %d error.(%s)\n",tmp,signedtx);
complete = 0;
} //else printf("%s signed\n",bits256_str(str,*signedtxidp));
} else printf("complete.%d\n",complete);
} else printf("rwmsgtx error\n");
} else fprintf(stderr,"no inputs in vins.(%s)\n",vins!=0?jprint(vins,0):"null");
free(extraspace);
free(serialized), free(serialized2), free(serialized3), free(serialized4);
} else return(-1);
if ( txobj != 0 )
free_json(txobj);
*signedtxp = signedtx;
return(complete);
}