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170 lines
6.7 KiB
170 lines
6.7 KiB
/******************************************************************************
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* Copyright © 2014-2015 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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#define EXCHANGE_NAME "bitstamp"
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#define UPDATE prices777_ ## bitstamp
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#define SUPPORTS bitstamp ## _supports
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#define SIGNPOST bitstamp ## _signpost
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#define TRADE bitstamp ## _trade
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#define ORDERSTATUS bitstamp ## _orderstatus
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#define CANCELORDER bitstamp ## _cancelorder
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#define OPENORDERS bitstamp ## _openorders
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#define TRADEHISTORY bitstamp ## _tradehistory
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#define BALANCES bitstamp ## _balances
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#define PARSEBALANCE bitstamp ## _parsebalance
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#define WITHDRAW bitstamp ## _withdraw
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#define EXCHANGE_AUTHURL "https://www.bitstamp.net/api"
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#define CHECKBALANCE bitstamp ## _checkbalance
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double UPDATE(struct prices777 *prices,int32_t maxdepth)
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{
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if ( prices->url[0] == 0 )
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sprintf(prices->url,"https://www.bitstamp.net/api/order_book/");
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return(prices777_standard("bitstamp",prices->url,prices,0,0,maxdepth,0));
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}
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int32_t SUPPORTS(char *base,char *rel)
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{
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char *baserels[][2] = { {"btc","usd"} };
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return(baserel_polarity(baserels,(int32_t)(sizeof(baserels)/sizeof(*baserels)),base,rel));
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}
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cJSON *SIGNPOST(void **cHandlep,int32_t dotrade,char **retstrp,struct exchange_info *exchange,char *method,char *payload)
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{
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/*signature is a HMAC-SHA256 encoded message containing: nonce, customer ID (can be found here) and API key. The HMAC-SHA256 code must be generated using a secret key that was generated with your API key. This code must be converted to it's hexadecimal representation (64 uppercase characters).Example (Python):
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message = nonce + customer_id + api_key
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signature = hmac.new(API_SECRET, msg=message, digestmod=hashlib.sha256).hexdigest().upper()
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key - API key
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signature - signature
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nonce - nonce
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*/
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char dest[1025],url[1024],req[1024],hdr1[512],hdr2[512],hdr3[512],hdr4[512],*sig,*data = 0;
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cJSON *json; uint64_t nonce;
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hdr1[0] = hdr2[0] = hdr3[0] = hdr4[0] = 0;
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nonce = exchange_nonce(exchange);
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sprintf(req,"%llu%s%s",(long long)nonce,exchange->userid,exchange->apikey);
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json = 0;
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if ( (sig= hmac_sha256_str(dest,exchange->apisecret,(int32_t)strlen(exchange->apisecret),req)) != 0 )
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{
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//touppercase(sig);
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//printf("req.(%s) sig.(%s)\n",req,sig);
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//sprintf(req,"{\"key\":\"%s\",\"signature\":\"%s\",\"nonce\":%llu%s}",exchange->apikey,sig,(long long)nonce,payload);
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sprintf(req,"key=%s&signature=%s&nonce=%llu%s",exchange->apikey,sig,(long long)nonce,payload);
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//printf("submit.(%s)\n",req);
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sprintf(url,"%s/%s/",EXCHANGE_AUTHURL,method);
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if ( dotrade == 0 )
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data = exchange_would_submit(req,hdr1,hdr2,hdr3,hdr4);
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else if ( (data= curl_post(cHandlep,url,0,req,req,hdr2,hdr3,hdr4)) != 0 )
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json = cJSON_Parse(data);
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}
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if ( retstrp != 0 )
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*retstrp = data;
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else if ( data != 0 )
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free(data);
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return(json);
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}
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char *PARSEBALANCE(struct exchange_info *exchange,double *balancep,char *coinstr)
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{
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char field[128],*itemstr = 0; cJSON *obj,*item;
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*balancep = 0.;
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strcpy(field,coinstr);
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tolowercase(field);
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if ( exchange->balancejson != 0 && (obj= jobj(exchange->balancejson,"return")) != 0 && (item= jobj(obj,"funds")) != 0 )
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{
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*balancep = jdouble(item,field);
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obj = cJSON_CreateObject();
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touppercase(field);
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jaddstr(obj,"base",field);
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jaddnum(obj,"balance",*balancep);
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itemstr = jprint(obj,1);
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}
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if ( itemstr == 0 )
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return(clonestr("{\"error\":\"cant find coin balance\"}"));
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return(itemstr);
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}
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cJSON *BALANCES(void **cHandlep,struct exchange_info *exchange)
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{
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return(SIGNPOST(cHandlep,1,0,exchange,"balance",""));
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}
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#include "checkbalance.c"
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uint64_t TRADE(void **cHandlep,int32_t dotrade,char **retstrp,struct exchange_info *exchange,char *base,char *rel,int32_t dir,double price,double volume)
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{
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char payload[1024],url[512],pairstr[512],*extra; cJSON *json; uint64_t txid = 0;
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if ( (extra= *retstrp) != 0 )
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*retstrp = 0;
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if ( (dir= flipstr_for_exchange(exchange,pairstr,"%s%s",dir,&price,&volume,base,rel)) == 0 )
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{
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printf("cant find baserel (%s/%s)\n",base,rel);
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return(0);
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}
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sprintf(url,"%s/%s/",EXCHANGE_AUTHURL,dir>0 ? "buy" : "sell");
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if ( CHECKBALANCE(retstrp,dotrade,exchange,dir,base,rel,price,volume) == 0 && (json= SIGNPOST(cHandlep,dotrade,retstrp,exchange,url,payload)) != 0 )
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{
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// parse json and set txid
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free_json(json);
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}
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return(txid);
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}
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char *ORDERSTATUS(void **cHandlep,struct exchange_info *exchange,cJSON *argjson,uint64_t quoteid)
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{
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char jsonbuf[128];
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sprintf(jsonbuf,"&id=%llu",(long long)quoteid);
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return(jprint(SIGNPOST(cHandlep,1,0,exchange,"order_status",jsonbuf),1));
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}
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char *CANCELORDER(void **cHandlep,struct exchange_info *exchange,cJSON *argjson,uint64_t quoteid)
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{
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char jsonbuf[128];
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sprintf(jsonbuf,"&id=%llu",(long long)quoteid);
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return(jprint(SIGNPOST(cHandlep,1,0,exchange,"cancel_order",jsonbuf),1));
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}
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char *OPENORDERS(void **cHandlep,struct exchange_info *exchange,cJSON *argjson)
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{
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return(jprint(SIGNPOST(cHandlep,1,0,exchange,"open_orders",""),1));
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}
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char *TRADEHISTORY(void **cHandlep,struct exchange_info *exchange,cJSON *argjson)
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{
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return(jprint(SIGNPOST(cHandlep,1,0,exchange,"user_transactions",""),1));
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}
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char *WITHDRAW(void **cHandlep,struct exchange_info *exchange,cJSON *argjson)
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{
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return(clonestr("{\"error\":\"withdraw not yet\"}"));
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}
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struct exchange_funcs bitstamp_funcs = EXCHANGE_FUNCS(bitstamp,EXCHANGE_NAME);
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#undef UPDATE
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#undef SUPPORTS
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#undef SIGNPOST
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#undef TRADE
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#undef ORDERSTATUS
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#undef CANCELORDER
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#undef OPENORDERS
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#undef TRADEHISTORY
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#undef BALANCES
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#undef PARSEBALANCE
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#undef WITHDRAW
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#undef EXCHANGE_NAME
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#undef EXCHANGE_AUTHURL
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#undef CHECKBALANCE
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