void
hintprint(HConnect *hc, Hio *hout, char *uri, int thresh, int havej)
{
int i, j, pr, prefix, fd, siz, havei, newhint = 0, n;
char *query, *sf, etag[32], *wurl;
Dir *dir;
Hint *h, *haveh;
query = hstrdup(hc, uri);
urlcanon(query);
j = urllookup(hashstr(query));
if(j < 0)
return;
query = strrchr(uri,'/');
if(!query)
return; /* can't happen */
prefix = query-uri+1; /* = strlen(dirname)+1 */
h = hints[j];
for(i=0; i<nhint[j]; i++){
if(havej > 0 && havej < URLmax){ /* exclude hints client has */
haveh = hints[havej];
for(havei=0; havei<nhint[havej]; havei++)
if( haveh[havei].url == h[i].url)
goto continuei;
}
sf = urlname[h[i].url];
pr = h[i].prob;
if(pr<thresh)
break;
n = strlen(webroot) + strlen(sf) + 1;
wurl = halloc(hc, n);
strcpy(wurl, webroot);
strcat(wurl, sf);
fd = open(wurl, OREAD);
if(fd<0)
continue;
dir = dirfstat(fd);
if(dir == nil){
close(fd);
continue;
}
close(fd);
snprint(etag, sizeof(etag), "\"%lluxv%lx\"", dir->qid.path, dir->qid.vers);
siz = (int)( log((double)dir->length) * RECIPLOG2 + 0.9999);
free(dir);
if(strncmp(uri,sf,prefix)==0 && strchr(sf+prefix,'/')==0 && sf[prefix]!=0)
sf = sf+prefix;
hprint(hout, "Fresh: %d,%s,%d,%s\r\n", pr, etag, siz, sf);
newhint++;
continuei: ;
}
if(newhint)
hprint(hout, "Fresh: have/%d\r\n", j);
}
/* this is a HACK */
Rune*
urlcombine(Rune *b, Rune *u)
{
Rune *p, *q, *sep, *s;
Rune endrune[] = { L'?', L'#' };
int i, restore;
if(u == nil)
error("urlcombine: u == nil");
if(validurl(u))
return erunestrdup(u);
if(b==nil || !validurl(b))
error("urlcombine: b==nil || !validurl(b)");
if(runestrncmp(u, L"//", 2) == 0){
q = runestrchr(b, L':');
return runesmprint("%.*S:%S", (int)(q-b), b, u);
}
p = runestrstr(b, L"://");
if(p != nil)
p += 3;
sep = L"";
q = nil;
if(*u ==L'/')
q = runestrchr(p, L'/');
else if(*u==L'#' || *u==L'?'){
for(i=0; i<nelem(endrune); i++)
if(q = runestrchr(p, endrune[i]))
break;
}else if(p != nil){
sep = L"/";
restore = 0;
s = runestrchr(p, L'?');
if(s != nil){
*s = '\0';
restore = 1;
}
q = runestrrchr(p, L'/');
if(restore)
*s = L'?';
}else
sep = L"/";
if(q == nil)
p = runesmprint("%S%S%S", b, sep, u);
else
p = runesmprint("%.*S%S%S", (int)(q-b), b, sep, u);
urlcanon(p);
return p;
}
