/* See if a cached location is accurate -- called with "Known Bus" set */
INDEX_OR_ERROR ReCheckPresence(struct parsedname *pn)
{
INDEX_OR_ERROR bus_nr;
if (NotRealDir(pn)) {
return INDEX_DEFAULT;
}
if ((pn->selected_device == DeviceSimultaneous)
|| (pn->selected_device == DeviceThermostat)) {
return INDEX_DEFAULT;
}
if (KnownBus(pn)) {
if ( INDEX_VALID( CheckThisConnection(pn->known_bus->index,pn) ) ) {
return pn->known_bus->index ;
}
}
if ( GOOD( Cache_Get_Device(&bus_nr, pn)) ) {
LEVEL_DEBUG("Found device on bus %d",bus_nr);
if ( INDEX_VALID( CheckThisConnection(bus_nr,pn) ) ) {
SetKnownBus(bus_nr, pn);
return bus_nr ;
}
}
UnsetKnownBus(pn);
Cache_Del_Device(pn) ;
return CheckPresence(pn);
}
/* Misnamed. Actually all directory */
void ShowDir(FILE * out, struct parsedname * pn)
{
int b = Backup(pn->path); // length of string to get to higher level
if (pn->state & ePS_text) {
ShowDirText(out, pn);
return;
} else if (pn->state & ePS_json) {
ShowDirJson(out, pn);
return;
}
HTTPstart(out, "200 OK", ct_html);
HTTPtitle(out, "Directory");
if (NotRealDir(pn)) {
/* return whole path since tree structure could be much deeper now */
/* first / is stripped off */
HTTPheader(out, &pn->path[1]);
} else if (pn->state) {
/* return whole path since tree structure could be much deeper now */
/* first / is stripped off */
HTTPheader(out, &pn->path[1]);
} else {
HTTPheader(out, "directory");
}
fprintf(out, "<TABLE BGCOLOR=\"#DDDDDD\" BORDER=1>");
if (b != 1) {
char * escaped_path = httpescape( pn->path ) ;
fprintf(out, "<TR><TD><A HREF='%.*s'><CODE><B><BIG>up</BIG></B></CODE></A></TD><TD>higher level</TD><TD>directory</TD></TR>", b, escaped_path==NULL ? pn->path : escaped_path );
if ( escaped_path ) {
owfree( escaped_path ) ;
}
} else {
fprintf(out, "<TR><TD><A HREF='/'><CODE><B><BIG>top</BIG></B></CODE></A></TD><TD>highest level</TD><TD>directory</TD></TR>");
}
FS_dir(ShowDirCallback, out, pn);
fprintf(out, "</TABLE>");
HTTPfoot(out);
}
ZERO_OR_ERROR FS_present(struct one_wire_query *owq)
{
struct parsedname *pn = PN(owq);
if (NotRealDir(pn) || pn->selected_device == DeviceSimultaneous || pn->selected_device == DeviceThermostat) {
OWQ_Y(owq) = 1;
} else if ( pn->selected_connection->iroutines.flags & ADAP_FLAG_presence_from_dirblob ) {
OWQ_Y(owq) = GOOD( PresenceFromDirblob(pn) ) ;
} else if ( pn->selected_connection->iroutines.flags & ADAP_FLAG_sham ) {
OWQ_Y(owq) = 0 ;
} else {
struct transaction_log t[] = {
TRXN_NVERIFY,
TRXN_END,
};
OWQ_Y(owq) = BAD(BUS_transaction(t, pn)) ? 0 : 1;
}
return 0;
}
/* Check if device exists -- >=0 yes, -1 no */
INDEX_OR_ERROR CheckPresence(struct parsedname *pn)
{
INDEX_OR_ERROR bus_nr;
if (NotRealDir(pn)) {
return INDEX_DEFAULT;
}
if ((pn->selected_device == DeviceSimultaneous)
|| (pn->selected_device == DeviceThermostat)) {
return INDEX_DEFAULT;
}
/* If set, already found bus. */
/* Use UnsetKnownBus to clear and allow a new search */
if (KnownBus(pn)) {
return pn->known_bus->index;
}
if ( GOOD( Cache_Get_Device(&bus_nr, pn)) ) {
LEVEL_DEBUG("Found device on bus %d",bus_nr);
SetKnownBus(bus_nr, pn);
return bus_nr;
}
LEVEL_DETAIL("Checking presence of %s", SAFESTRING(pn->path));
bus_nr = CheckPresence_low(pn); // check only allocated inbound connections
if ( INDEX_VALID(bus_nr) ) {
SetKnownBus(bus_nr, pn);
Cache_Add_Device( bus_nr, pn->sn ) ;
return bus_nr;
}
UnsetKnownBus(pn);
return INDEX_BAD;
}
