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363 lines
13 KiB
363 lines
13 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_forwarding.c
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// marketmaker
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//
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struct LP_forwardinfo
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{
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UT_hash_handle hh;
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bits256 pubkey;
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char pushaddr[64];
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int32_t pushsock;
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uint32_t lasttime,hello;
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} *LP_forwardinfos;
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#define LP_KEEPALIVE (3600 * 24)
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struct LP_forwardinfo *LP_forwardfind(bits256 pubkey)
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{
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struct LP_forwardinfo *ptr=0;
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portable_mutex_lock(&LP_forwardmutex);
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HASH_FIND(hh,LP_forwardinfos,&pubkey,sizeof(pubkey),ptr);
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portable_mutex_unlock(&LP_forwardmutex);
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if ( ptr != 0 && ptr->lasttime > time(NULL)-LP_KEEPALIVE )
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return(ptr);
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else return(0);
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}
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char *LP_lookup(bits256 pubkey)
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{
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if ( bits256_nonz(pubkey) == 0 )
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return(clonestr("{\"result\":\"illegal pubkey\"}"));
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if ( LP_forwardfind(pubkey) != 0 )
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return(clonestr("{\"result\":\"success\",\"forwarding\":1}"));
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else return(clonestr("{\"result\":\"notfound\"}"));
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}
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int32_t LP_hello(struct LP_forwardinfo *ptr)
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{
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int32_t i,n=10; char msg[512]; struct nn_pollfd pfd;
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if ( bits256_cmp(ptr->pubkey,LP_mypubkey) != 0 )
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{
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pfd.fd = ptr->pushsock;
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pfd.events = NN_POLLOUT;
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for (i=0; i<n; i++)
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{
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if ( nn_poll(&pfd,1,1) > 0 )
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{
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sprintf(msg,"{\"method\":\"hello\",\"from\":\"%s\"}",LP_mypeer != 0 ? LP_mypeer->ipaddr : "");
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//printf("HELLO sent.%d bytes to %s on i.%d\n",LP_send(ptr->pushsock,msg,0),ptr->pushaddr,i);
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ptr->hello = (uint32_t)time(NULL);
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return(i);
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}
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}
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//printf("%d iterations on nn_poll and %s pushsock still not ready\n",i,ptr->pushaddr);
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return(-1);
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}
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return(0);
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}
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int32_t LP_hellos()
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{
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struct LP_forwardinfo *ptr,*tmp; int32_t nonz = 0;
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HASH_ITER(hh,LP_forwardinfos,ptr,tmp)
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{
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if ( ptr->hello == 0 && LP_hello(ptr) >= 0 )
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nonz++;
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}
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return(nonz);
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}
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int32_t LP_pushsock_create(struct LP_forwardinfo *ptr,char *pushaddr)
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{
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int32_t pushsock,timeout;
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if ( (pushsock= nn_socket(AF_SP,LP_COMMAND_SENDSOCK)) < 0 )
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{
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printf("LP_pushsock_create couldnt allocate socket for %s\n",pushaddr);
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return(-1);
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}
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else if ( nn_connect(pushsock,pushaddr) < 0 )
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{
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nn_close(pushsock);
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printf("LP_pushsock_create couldnt connect to %s\n",pushaddr);
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return(-1);
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}
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timeout = 1;
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nn_setsockopt(pushsock,NN_SOL_SOCKET,NN_SNDTIMEO,&timeout,sizeof(timeout));
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nn_setsockopt(pushsock,NN_SOL_SOCKET,NN_RCVTIMEO,&timeout,sizeof(timeout));
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if ( ptr != 0 )
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LP_hello(ptr);
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return(pushsock);
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}
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char *LP_register(bits256 pubkey,char *ipaddr,uint16_t port)
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{
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struct LP_forwardinfo *ptr=0; int32_t pushsock; char pushaddr[64];
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if ( ipaddr == 0 || ipaddr[0] == 0 || is_ipaddr(ipaddr) == 0 || bits256_nonz(pubkey) == 0 )
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return(clonestr("{\"result\":\"illegal ipaddr or null pubkey\"}"));
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nanomsg_transportname(0,pushaddr,ipaddr,port);
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//char str[65]; printf("register.(%s) %s\n",pushaddr,bits256_str(str,pubkey));
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if ( (ptr= LP_forwardfind(pubkey)) != 0 )
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{
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ptr->lasttime = (uint32_t)time(NULL);
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if ( ptr->pushsock >= 0 )
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{
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if ( strcmp(pushaddr,ptr->pushaddr) != 0 )
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{
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nn_close(ptr->pushsock);
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if ( LP_psockmark(ptr->pushaddr) < 0 )
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{
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//printf("cant mark (%s)\n",ptr->pushaddr);
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}
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char str[65]; printf("%u recreate pushsock for %s <- %s %s\n",(uint32_t)time(NULL),ptr->pushaddr,pushaddr,bits256_str(str,pubkey));
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strcpy(ptr->pushaddr,pushaddr);
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if ( (ptr->pushsock= LP_pushsock_create(ptr,pushaddr)) < 0 )
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return(clonestr("{\"result\":\"success\",\"status\":\"couldnt recreate pushsock\",\"registered\":0}"));
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} //else printf("no need to create identical endpoint\n");
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}
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return(clonestr("{\"result\":\"success\",\"status\":\"already registered\",\"registered\":1}"));
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}
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else if ( (pushsock= LP_pushsock_create(0,pushaddr)) < 0 )
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return(clonestr("{\"result\":\"success\",\"status\":\"couldnt create pushsock\"}"));
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else
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{
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ptr = calloc(1,sizeof(*ptr));
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ptr->pubkey = pubkey;
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strcpy(ptr->pushaddr,pushaddr);
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ptr->pushsock = pushsock;
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ptr->lasttime = (uint32_t)time(NULL);
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portable_mutex_lock(&LP_forwardmutex);
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HASH_ADD_KEYPTR(hh,LP_forwardinfos,&ptr->pubkey,sizeof(ptr->pubkey),ptr);
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portable_mutex_unlock(&LP_forwardmutex);
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//char str[65]; printf("registered (%s) -> (%s) pushsock.%d\n",bits256_str(str,pubkey),pushaddr,ptr->pushsock);
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LP_hello(ptr);
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return(LP_lookup(pubkey));
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}
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}
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int32_t LP_forwarding_register(bits256 pubkey,char *publicaddr,uint16_t publicport,int32_t max)
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{
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char *argstr,ipaddr[64]; cJSON *argjson; struct LP_peerinfo *peer,*tmp; int32_t j,n=0,arglen;
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if ( publicaddr == 0 || publicaddr[0] == 0 || bits256_nonz(pubkey) == 0 )
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{
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char str[65]; printf("LP_forwarding_register illegal publicaddr.(%s):%u or null pubkey (%s)\n",publicaddr,publicport,bits256_str(str,pubkey));
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return(0);
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}
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for (j=0; publicaddr[j]!=0; j++)
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if ( publicaddr[j] >= '0' && publicaddr[j] <= '9' )
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break;
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parse_ipaddr(ipaddr,publicaddr+j);
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argjson = cJSON_CreateObject();
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jaddstr(argjson,"agent","stats");
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jaddstr(argjson,"method","register");
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jaddbits256(argjson,"client",pubkey);
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jaddstr(argjson,"pushaddr",ipaddr);
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jaddnum(argjson,"pushport",publicport);
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argstr = jprint(argjson,1);
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arglen = (int32_t)strlen(argstr) + 1;
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HASH_ITER(hh,LP_peerinfos,peer,tmp)
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{
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if ( strcmp(LP_myipaddr,peer->ipaddr) == 0 )
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continue;
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if ( peer->pushsock >= 0 )
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{
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if ( LP_send(peer->pushsock,argstr,arglen,0) != arglen )
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{
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if ( strncmp(peer->ipaddr,"5.9.253",strlen("5.9.253")) == 0 )
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printf("error registering with %s:%u\n",peer->ipaddr,peer->port);
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}
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n++;
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}
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//printf("register.(%s) %s %u with (%s)\n",publicaddr,ipaddr,publicport,peer->ipaddr);
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/*if ( (retstr= issue_LP_register(peer->ipaddr,peer->port,pubkey,ipaddr,publicport)) != 0 )
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{
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//printf("[%s] LP_register.(%s) returned.(%s)\n",publicaddr,peer->ipaddr,retstr);
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if ( (retjson= cJSON_Parse(retstr)) != 0 )
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{
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if ( jint(retjson,"registered") != 0 && ++n >= max )
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retval = 0;
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free_json(retjson);
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}
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free(retstr);
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} else printf("timeout registering with %s errs.%d good.%d\n",peer->ipaddr,peer->errors,peer->good);
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if ( retval == 0 )
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break;*/
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}
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free(argstr);
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return(n);
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}
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char *LP_registerall(int32_t numnodes)
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{
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int32_t i,maxnodes,n=0; cJSON *retjson;
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if ( numnodes < sizeof(default_LPnodes)/sizeof(*default_LPnodes) )
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numnodes = (int32_t)(sizeof(default_LPnodes)/sizeof(*default_LPnodes));
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if ( (maxnodes= LP_numpeers()) < numnodes )
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numnodes = maxnodes;
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for (i=0; i<numnodes; i++)
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if ( (n= LP_forwarding_register(LP_mypubkey,LP_publicaddr,LP_publicport,numnodes)) >= numnodes )
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break;
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retjson = cJSON_CreateObject();
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if ( i == numnodes )
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jaddstr(retjson,"error","not enough nodes");
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jaddnum(retjson,"numnodes",numnodes);
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jaddnum(retjson,"registered",n);
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jaddnum(retjson,"iters",i);
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return(jprint(retjson,1));
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}
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cJSON *LP_dereference(cJSON *argjson,char *excludemethod)
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{
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cJSON *reqjson = 0;
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if ( jstr(argjson,"method2") != 0 && strncmp(excludemethod,jstr(argjson,"method2"),strlen(excludemethod)) != 0 )
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{
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reqjson = jduplicate(argjson);
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jdelete(reqjson,"method");
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jaddstr(reqjson,"method",jstr(argjson,"method2"));
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}
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return(reqjson);
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}
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char *LP_forwardhex(void *ctx,int32_t pubsock,bits256 pubkey,char *hexstr)
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{
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struct LP_forwardinfo *ptr=0; uint8_t *data; int32_t datalen=0,sentbytes=0; char *msg,*retstr=0; cJSON *retjson=0,*argjson=0,*reqjson=0;
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if ( hexstr == 0 || hexstr[0] == 0 )
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return(clonestr("{\"result\":\"nohex\"}"));
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datalen = (int32_t)strlen(hexstr) >> 1;
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data = malloc(datalen);
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decode_hex(data,datalen,hexstr);
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if ( (argjson= cJSON_Parse((char *)data)) != 0 )
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reqjson = LP_dereference(argjson,"forward");
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if ( bits256_nonz(pubkey) == 0 || bits256_cmp(pubkey,LP_mypubkey) == 0 )
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{
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if ( reqjson != 0 )
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{
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retstr = LP_command_process(ctx,LP_mypeer != 0 ? LP_mypeer->ipaddr : "127.0.0.1",LP_mypubsock,reqjson,0,0,LP_profitratio - 1.);
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//printf("LP_forwardhex.(%s) -> (%s)\n",jprint(reqjson,0),retstr!=0?retstr:"");
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if ( pubsock >= 0 )
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{
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msg = jprint(reqjson,0);
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LP_send(pubsock,msg,(int32_t)strlen(msg)+1,0);
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}
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} else printf("LP_forwardhex couldnt parse (%s)\n",(char *)data);
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}
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else if ( (ptr= LP_forwardfind(pubkey)) != 0 )
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{
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if ( ptr->pushsock >= 0 )//&& ptr->hello != 0 )
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{
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printf("%s forwardhex.(%s)\n",ptr->pushaddr,(char *)data);
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sentbytes = LP_send(ptr->pushsock,(char *)data,datalen,0);
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}
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retjson = cJSON_CreateObject();
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if ( sentbytes == datalen )
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{
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jaddstr(retjson,"result","success");
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jaddnum(retjson,"forwarded",sentbytes);
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retstr = jprint(retjson,1);
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}
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else
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{
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jaddstr(retjson,"error","send error");
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jaddnum(retjson,"sentbytes",sentbytes);
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jaddnum(retjson,"datalen",datalen);
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jaddnum(retjson,"hello",ptr->hello);
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retstr = jprint(retjson,1);
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}
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}
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else
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{
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char str[65]; printf("couldnt find %s to forward to\n",bits256_str(str,pubkey));
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if ( pubsock >= 0 )
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{
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msg = jprint(reqjson,0);
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LP_send(pubsock,msg,(int32_t)strlen(msg)+1,1);
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}
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retstr = clonestr("{\"result\":\"notfound\"}");
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}
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free(data);
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if ( reqjson != 0 )
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free_json(reqjson);
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if ( argjson != 0 )
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free_json(argjson);
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return(retstr);
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}
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int32_t LP_forward(void *ctx,char *myipaddr,int32_t pubsock,double profitmargin,bits256 pubkey,char *jsonstr,int32_t freeflag)
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{
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struct LP_forwardinfo *ptr; struct LP_peerinfo *peer,*tmp; char *msg,*hexstr,*retstr; int32_t len,n=0,mlen; cJSON *reqjson,*argjson;
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if ( jsonstr == 0 || jsonstr[0] == 0 )
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return(-1);
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len = (int32_t)strlen(jsonstr) + 1;
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if ( bits256_nonz(pubkey) != 0 )
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{
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if ( bits256_cmp(pubkey,LP_mypubkey) == 0 )
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{
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printf("GOT FORWARDED.(%s)\n",myipaddr);
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if ( (argjson= cJSON_Parse(jsonstr)) != 0 )
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{
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if ( (retstr= LP_command_process(ctx,myipaddr,pubsock,argjson,0,0,profitmargin)) != 0 )
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free(retstr);
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free_json(argjson);
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}
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if ( freeflag != 0 )
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free(jsonstr);
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return(1);
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}
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else if ( IAMLP != 0 && (ptr= LP_forwardfind(pubkey)) != 0 && ptr->pushsock >= 0 )//&& ptr->lasttime > time(NULL)-LP_KEEPALIVE )
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{
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printf("GOT FORWARDED.(%s) -> pushsock.%d\n",jsonstr,ptr->pushsock);
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if ( LP_send(ptr->pushsock,jsonstr,len,0) == len )
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{
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if ( freeflag != 0 )
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free(jsonstr);
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return(1);
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}
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}
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}
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hexstr = malloc(len*2 + 1);
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init_hexbytes_noT(hexstr,(uint8_t *)jsonstr,len);
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if ( freeflag != 0 )
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free(jsonstr);
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reqjson = cJSON_CreateObject();
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jaddstr(reqjson,"method","forwardhex");
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jaddstr(reqjson,"hex",hexstr);
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free(hexstr);
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msg = jprint(reqjson,1);
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mlen = (int32_t)strlen(msg) + 1;
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HASH_ITER(hh,LP_peerinfos,peer,tmp)
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{
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//printf("found LPnode.(%s) forward.(%s)\n",peer->ipaddr,msg);
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if ( LP_send(peer->pushsock,msg,mlen,0) == mlen )
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n++;
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if ( n >= 8 )//sizeof(default_LPnodes)/sizeof(*default_LPnodes) )
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break;
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}
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if ( msg != 0 )
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free(msg);
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if ( n == 0 )
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return(-1);
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else return(n-1);
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}
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char *LP_broadcasted(cJSON *argjson)
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{
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printf("RECV BROADCAST.(%s)\n",jprint(argjson,0));
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return(clonestr("{\"result\":\"need to update broadcast messages\"}"));
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}
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