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#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include <9p.h>
#include <String.h>
#include "dat.h"
#include "json.h"
void gofs(void);
char *
graburl(char *url)
{
int fd, fd2, n, rc, size;
char buf[2048];
char *res;
fd = open("/mnt/web/clone", ORDWR);
if(fd < 0)
return nil;
if(read(fd, buf, 512) < 0){
close(fd);
return nil;
}
n = atoi(buf);
sprint(buf, "url %s", url);
if(write(fd, buf, strlen(buf)) < 0){
close(fd);
return nil;
}
sprint(buf, "/mnt/web/%d/body", n);
fd2 = open(buf, OREAD);
if(fd2 < 0){
close(fd);
return nil;
}
size = 0;
res = nil;
while((rc = readn(fd2, buf, sizeof buf)) > 0){
res = realloc(res, size + rc + 1);
memcpy(res + size, buf, rc);
size += rc;
res[size] = 0;
}
close(fd);
close(fd2);
if(rc < 0){
free(res);
return nil;
}
return res;
}
static void
parsetx(String *str, JSON *j, JSON *l)
{
JSONEl *e;
JSON *k;
char buf[512];
for(e = j->first; e != nil; e = e->next){
k = jsonbyname(e->val, "prev_out");
sprint(buf, "%s %lld ", jsonstr(jsonbyname(k, "addr")), (vlong)jsonbyname(k, "value")->n);
s_append(str, buf);
}
s_append(str, "| ");
for(e = l->first; e != nil; e = e->next){
sprint(buf, "%s %lld ", jsonstr(jsonbyname(e->val, "addr")), (vlong)jsonbyname(e->val, "value")->n);
s_append(str, buf);
}
}
char *
balancestr(DirEntry *, Aux *a)
{
char buf[512];
sprint(buf, "http://blockchain.info/q/addressbalance/%s", a->addr);
return graburl(buf);
}
char *
blocksstr(DirEntry *, Aux *)
{
return graburl("http://blockchain.info/q/getblockcount");
}
char *
txstr(DirEntry *, Aux *a)
{
char *s;
char buf[512];
JSON *j, *k;
JSONEl *e;
String *str;
sprint(buf, "http://blockchain.info/rawaddr/%s", a->addr);
s = graburl(buf);
if(s == nil)
return nil;
j = jsonparse(s);
free(s);
if(j == nil)
return nil;
str = s_new();
k = jsonbyname(j, "txs");
if(k == nil)
goto err;
for(e = k->first; e != nil; e = e->next){
sprint(buf, "%d %s %d ", (int)(jsonbyname(e->val, "time")->n), jsonstr(jsonbyname(e->val, "hash")), (int)(jsonbyname(e->val, "block_height")->n));
s_append(str, buf);
parsetx(str, jsonbyname(e->val, "inputs"), jsonbyname(e->val, "out"));
s_putc(str, '\n');
}
s_terminate(str);
s = str->base;
free(str);
jsonfree(j);
return s;
err:
s_free(str);
jsonfree(j);
return nil;
}
void
threadmain()
{
gofs();
}
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