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327 lines
14 KiB
327 lines
14 KiB
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/******************************************************************************
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* Copyright © 2014-2017 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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//
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// LP_cache.c
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// marketmaker
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//
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cJSON *LP_transaction_fromdata(struct iguana_info *coin,bits256 txid,uint8_t *serialized,int32_t len)
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{
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uint8_t *extraspace; cJSON *txobj; char str[65],str2[65]; struct iguana_msgtx msgtx; bits256 checktxid;
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extraspace = calloc(1,4000000);
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memset(&msgtx,0,sizeof(msgtx));
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txobj = bitcoin_data2json(coin->symbol,coin->taddr,coin->pubtype,coin->p2shtype,coin->isPoS,coin->height,&checktxid,&msgtx,extraspace,4000000,serialized,len,0,0,coin->zcash);
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//printf("TX.(%s) match.%d\n",jprint(txobj,0),bits256_cmp(txid,checktxid));
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free(extraspace);
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if ( bits256_cmp(txid,checktxid) != 0 )
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{
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printf("%s LP_transaction_fromdata mismatched txid %s vs %s\n",coin->symbol,bits256_str(str,txid),bits256_str(str2,checktxid));
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free_json(txobj);
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txobj = 0;
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}
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return(txobj);
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}
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struct LP_transaction *LP_create_transaction(struct iguana_info *coin,bits256 txid,uint8_t *serialized,int32_t len,int32_t height,long fpos)
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{
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cJSON *txobj; bits256 spenttxid; int32_t i,spentvout,numvins,numvouts; cJSON *vout,*vin,*vins,*vouts; struct LP_transaction *tx; char str[65];
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if ( (tx= LP_transactionfind(coin,txid)) != 0 )
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return(tx);
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if ( (txobj= LP_transaction_fromdata(coin,txid,serialized,len)) != 0 )
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{
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vins = jarray(&numvins,txobj,"vin");
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vouts = jarray(&numvouts,txobj,"vout");
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tx = LP_transactionadd(coin,txid,height,numvouts,numvins);
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tx->serialized = serialized, tx->len = len;
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// free(serialized), tx->len = 0;
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tx->fpos = fpos;
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tx->SPV = tx->height = height;
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//printf("tx.%s numvins.%d numvouts.%d\n",bits256_str(str,txid),numvins,numvouts);
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for (i=0; i<numvouts; i++)
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{
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vout = jitem(vouts,i);
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tx->outpoints[i].value = LP_value_extract(vout,0,txid);
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tx->outpoints[i].interest = SATOSHIDEN * jdouble(vout,"interest");
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LP_destaddr(tx->outpoints[i].coinaddr,vout);
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//printf("from transaction init %s %s %s/v%d <- %.8f\n",coin->symbol,tx->outpoints[i].coinaddr,bits256_str(str,txid),i,dstr(tx->outpoints[i].value));
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LP_address_utxoadd(0,(uint32_t)time(NULL),"LP_create_transaction",coin,tx->outpoints[i].coinaddr,txid,i,tx->outpoints[i].value,height,-1);
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}
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for (i=0; i<numvins; i++)
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{
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vin = jitem(vins,i);
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spenttxid = jbits256(vin,"txid");
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spentvout = jint(vin,"vout");
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if ( i == 0 && bits256_nonz(spenttxid) == 0 )
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continue;
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if ( (tx= LP_transactionfind(coin,spenttxid)) != 0 )
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{
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if ( spentvout < tx->numvouts )
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{
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if ( tx->outpoints[spentvout].spendheight <= 0 )
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{
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tx->outpoints[spentvout].spendtxid = txid;
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tx->outpoints[spentvout].spendvini = i;
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tx->outpoints[spentvout].spendheight = height > 0 ? height : 1;
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LP_address_utxoadd(0,(uint32_t)time(NULL),"LP_transactioninit iter1",coin,tx->outpoints[spentvout].coinaddr,spenttxid,spentvout,tx->outpoints[spentvout].value,-1,height>0?height:1);
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if ( 0 && strcmp(coin->symbol,"REVS") == 0 )
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printf("spend %s %s/v%d at ht.%d\n",coin->symbol,bits256_str(str,tx->txid),spentvout,height);
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}
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} else printf("LP_transactioninit: %s spentvout.%d < numvouts.%d spendheight.%d\n",bits256_str(str,spenttxid),spentvout,tx->numvouts,tx->outpoints[spentvout].spendheight);
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} //else printf("LP_transactioninit: couldnt find (%s) ht.%d %s\n",bits256_str(str,spenttxid),height,jprint(vin,0));
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if ( bits256_cmp(spenttxid,txid) == 0 )
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printf("spending same tx's %p vout ht.%d %s.[%d] s%d\n",tx,height,bits256_str(str,txid),tx!=0?tx->numvouts:0,spentvout);
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}
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free_json(txobj);
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}
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return(tx);
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}
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void LP_SPV_store(struct iguana_info *coin,bits256 txid,int32_t height)
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{
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FILE *fp; char fname[512]; struct LP_transaction *tx = 0;
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if ( (tx= LP_transactionfind(coin,txid)) != 0 && tx->serialized != 0 && tx->len > 0 && tx->fpos == 0 )
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{
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sprintf(fname,"%s/UNSPENTS/%s.SPV",GLOBAL_DBDIR,coin->symbol), OS_portable_path(fname);
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if ( (fp= OS_appendfile(fname)) != 0 )
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{
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fwrite(&tx->txid,1,sizeof(tx->txid),fp);
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fwrite(&tx->len,1,sizeof(tx->len),fp);
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fwrite(&tx->height,1,sizeof(tx->height),fp);
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tx->fpos = ftell(fp);
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fwrite(tx->serialized,1,tx->len,fp);
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fclose(fp);
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}
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} //else printf("cant store %s %s tx.%p [%d] fpos.%ld SPV.%d\n",coin->symbol,bits256_str(str,txid),tx,tx!=0?tx->len:-1,tx!=0?tx->fpos:-1,tx!=0?tx->SPV:-1);
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}
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int32_t LP_cacheitem(struct iguana_info *coin,FILE *fp)
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{
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bits256 txid,hash; long fpos; int32_t offset,retval,height,len; uint8_t *serialized; char str[65],str2[65];
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fpos = ftell(fp);
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if ( fread(&txid,1,sizeof(txid),fp) == sizeof(txid) && fread(&len,1,sizeof(len),fp) == sizeof(len) && fread(&height,1,sizeof(height),fp) == sizeof(height) && len < 100000 )
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{
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offset = (int32_t)(sizeof(txid) + sizeof(len) + sizeof(height));
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serialized = malloc(len);
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if ( (retval= (int32_t)fread(serialized,1,len,fp)) == len )
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{
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hash = bits256_calctxid(coin->symbol,serialized,len);
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if ( bits256_cmp(hash,txid) == 0 )
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{
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//printf("%s validated in cache\n",bits256_str(str,hash));
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LP_create_transaction(coin,txid,serialized,len,height,fpos+offset);
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return((int32_t)(ftell(fp) - fpos));
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}
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printf("%s vs %s did not validated in cache\n",bits256_str(str,hash),bits256_str(str2,txid));
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} else printf("retval.%d vs len.%d\n",retval,len);
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} else printf("fread error\n");
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return(-1);
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}
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void LP_cacheptrs_init(struct iguana_info *coin)
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{
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char fname[1024]; FILE *fp; int32_t count,tflag=0; long n,fsize=0,len = 0;
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sprintf(fname,"%s/UNSPENTS/%s.SPV",GLOBAL_DBDIR,coin->symbol), OS_portable_path(fname);
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fp = fopen(fname,"rb");
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count = 0;
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if ( fp != 0 )
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{
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fseek(fp,0,SEEK_END);
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fsize = ftell(fp);
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rewind(fp);
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while ( len < fsize )
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{
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if ( (n= LP_cacheitem(coin,fp)) < 0 )
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{
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printf("cacheitem error at %s offset.%ld when fsize.%ld\n",coin->symbol,len,fsize);
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tflag = 1;
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break;
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}
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count++;
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len += n;
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}
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printf("loaded %s %d entries total len.%ld\n",fname,count,len);
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fclose(fp);
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} //else printf("couldnt find.(%s)\n",fname);
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if ( tflag != 0 )
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OS_truncate(fname,len);
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}
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bits256 validate_merkle(int32_t pos,bits256 txid,cJSON *proofarray,int32_t proofsize)
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{
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int32_t i; uint8_t serialized[sizeof(bits256) * 2]; bits256 hash,proof;
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hash = txid;
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for (i=0; i<proofsize; i++)
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{
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proof = jbits256i(proofarray,i);
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if ( (pos & 1) == 0 )
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{
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iguana_rwbignum(1,&serialized[0],sizeof(hash),hash.bytes);
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iguana_rwbignum(1,&serialized[sizeof(hash)],sizeof(proof),proof.bytes);
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}
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else
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{
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iguana_rwbignum(1,&serialized[0],sizeof(proof),proof.bytes);
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iguana_rwbignum(1,&serialized[sizeof(hash)],sizeof(hash),hash.bytes);
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}
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hash = bits256_doublesha256(0,serialized,sizeof(serialized));
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pos >>= 1;
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}
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return(hash);
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}
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bits256 LP_merkleroot(struct iguana_info *coin,struct electrum_info *ep,int32_t height)
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{
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cJSON *hdrobj; bits256 merkleroot;
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memset(merkleroot.bytes,0,sizeof(merkleroot));
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if ( coin->cachedmerkleheight == height )
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return(coin->cachedmerkle);
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if ( (hdrobj= electrum_getheader(coin->symbol,ep,&hdrobj,height)) != 0 )
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{
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if ( jobj(hdrobj,"merkle_root") != 0 )
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{
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merkleroot = jbits256(hdrobj,"merkle_root");
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if ( bits256_nonz(merkleroot) != 0 )
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{
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coin->cachedmerkle = merkleroot;
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coin->cachedmerkleheight = height;
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}
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}
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free_json(hdrobj);
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} else printf("couldnt get header for ht.%d\n",height);
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return(merkleroot);
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}
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int32_t LP_merkleproof(struct iguana_info *coin,char *coinaddr,struct electrum_info *ep,bits256 txid,int32_t height)
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{
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struct LP_transaction *tx=0; cJSON *merkobj,*merkles,*retjson; bits256 roothash,merkleroot; int32_t m,ht=0,SPV = 0;
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if ( height <= 0 )
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return(0);
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if ( (tx= LP_transactionfind(coin,txid)) == 0 && strcmp(coinaddr,coin->smartaddr) == 0 )
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{
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if ( (retjson= electrum_transaction(&ht,coin->symbol,ep,&retjson,txid,0)) != 0 )
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free_json(retjson);
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}
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if ( tx != 0 )
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{
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if ( tx->height == 0 )
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{
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if ( height != 0 )
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tx->height = height;
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else if ( ht != 0 )
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tx->height = ht;
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height = tx->height;
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}
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if ( tx->SPV > 0 )
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return(tx->SPV);
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}
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if ( (merkobj= electrum_getmerkle(coin->symbol,ep,&merkobj,txid,height)) != 0 )
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{
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char str[65],str2[65],str3[65];
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SPV = 0;
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memset(roothash.bytes,0,sizeof(roothash));
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if ( (merkles= jarray(&m,merkobj,"merkle")) != 0 )
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{
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roothash = validate_merkle(jint(merkobj,"pos"),txid,merkles,m);
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merkleroot = LP_merkleroot(coin,ep,height);
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if ( bits256_nonz(merkleroot) != 0 )
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{
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if ( bits256_cmp(merkleroot,roothash) == 0 )
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{
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SPV = height;
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LP_SPV_store(coin,txid,height);
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if ( tx != 0 )
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{
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tx->SPV = height;
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if ( strcmp(coinaddr,coin->smartaddr) != 0 && tx->serialized != 0 )
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{
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free(tx->serialized);
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tx->serialized = 0;
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tx->len = 0;
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}
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}
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//printf("validated MERK %s ht.%d -> %s root.(%s)\n",bits256_str(str,txid),height,jprint(merkobj,0),bits256_str(str2,roothash));
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}
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else
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{
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SPV = -1;
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printf("ERROR MERK %s ht.%d -> %s root.(%s) vs %s\n",bits256_str(str,txid),height,jprint(merkobj,0),bits256_str(str2,roothash),bits256_str(str3,merkleroot));
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}
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} else SPV = 0;
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}
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if ( SPV < 0 )
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{
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printf("MERKLE DIDNT VERIFY.%s %s ht.%d (%s)\n",coin->symbol,bits256_str(str,txid),height,jprint(merkobj,0));
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if ( jobj(merkobj,"error") != 0 )
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SPV = 0; // try again later
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}
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free_json(merkobj);
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}
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return(SPV);
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}
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char *LP_unspents_filestr(char *symbol,char *addr)
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{
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char fname[1024]; long fsize;
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sprintf(fname,"%s/UNSPENTS/%s_%s",GLOBAL_DBDIR,symbol,addr), OS_portable_path(fname);
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return(OS_filestr(&fsize,fname));
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}
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void LP_unspents_cache(char *symbol,char *addr,char *arraystr,int32_t updatedflag)
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{
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char fname[1024]; FILE *fp=0;
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sprintf(fname,"%s/UNSPENTS/%s_%s",GLOBAL_DBDIR,symbol,addr), OS_portable_path(fname);
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//printf("unspents cache.(%s) for %s %s, updated.%d\n",fname,symbol,addr,updatedflag);
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if ( updatedflag == 0 && (fp= fopen(fname,"rb")) == 0 )
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updatedflag = 1;
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else if ( fp != 0 )
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fclose(fp);
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if ( updatedflag != 0 && (fp= fopen(fname,"wb")) != 0 )
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{
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fwrite(arraystr,1,strlen(arraystr),fp);
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fclose(fp);
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}
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}
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uint64_t LP_unspents_load(char *symbol,char *addr)
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{
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char *arraystr; uint64_t balance = 0; int32_t i,n; bits256 zero; cJSON *retjson,*item; struct iguana_info *coin;
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if ( (coin= LP_coinfind(symbol)) != 0 )
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{
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if ( (arraystr= LP_unspents_filestr(symbol,addr)) != 0 )
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{
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if ( (retjson= cJSON_Parse(arraystr)) != 0 )
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{
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//printf("PROCESS UNSPENTS %s\n",arraystr);
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if ( (n= cJSON_GetArraySize(retjson)) > 0 )
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{
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for (i=0; i<n; i++)
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{
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item = jitem(retjson,i);
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balance += j64bits(item,"value");
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}
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}
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memset(zero.bytes,0,sizeof(zero));
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electrum_process_array(coin,coin->electrum,addr,retjson,1,zero,zero);
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free_json(retjson);
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}
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free(arraystr);
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}
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}
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return(balance);
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}
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