/*
* Receive new data, update the reception buffer (for next read), update the
* cache, and service the client queue.
*
* This function gets called whenever the IO has new data.
* 'Op' is the operation to perform
* 'VPtr' is a (void) pointer to the IO control structure
*/
void a_Cache_process_dbuf(int Op, const char *buf, size_t buf_size,
const DilloUrl *Url)
{
int offset, len;
const char *str;
Dstr *dstr1, *dstr2, *dstr3;
CacheEntry_t *entry = Cache_entry_search(Url);
/* Assert a valid entry (not aborted) */
dReturn_if_fail (entry != NULL);
_MSG("__a_Cache_process_dbuf__\n");
if (Op == IORead) {
/*
* Cache_get_header() will set CA_GotHeader if it has a full header, and
* Cache_parse_header() will unset it if the header ends being
* merely an informational response from the server (i.e., 100 Continue)
*/
for (offset = 0; !(entry->Flags & CA_GotHeader) &&
(len = Cache_get_header(entry, buf + offset, buf_size - offset));
Cache_parse_header(entry) ) {
offset += len;
}
if (entry->Flags & CA_GotHeader) {
str = buf + offset;
len = buf_size - offset;
entry->TransferSize += len;
dstr1 = dstr2 = dstr3 = NULL;
/* Decode arrived data (<= 3 stages) */
if (entry->TransferDecoder) {
dstr1 = a_Decode_process(entry->TransferDecoder, str, len);
str = dstr1->str;
len = dstr1->len;
}
if (entry->ContentDecoder) {
dstr2 = a_Decode_process(entry->ContentDecoder, str, len);
str = dstr2->str;
len = dstr2->len;
}
dStr_append_l(entry->Data, str, len);
if (entry->CharsetDecoder && entry->UTF8Data) {
dstr3 = a_Decode_process(entry->CharsetDecoder, str, len);
dStr_append_l(entry->UTF8Data, dstr3->str, dstr3->len);
}
dStr_free(dstr1, 1);
dStr_free(dstr2, 1);
dStr_free(dstr3, 1);
if (entry->Data->len)
entry->Flags &= ~CA_IsEmpty;
entry = Cache_process_queue(entry);
}
} else if (Op == IOClose) {
if ((entry->ExpectedSize || entry->TransferSize) &&
entry->TypeHdr == NULL) {
MSG_HTTP("Message with a body lacked Content-Type header.\n");
}
if ((entry->Flags & CA_GotLength) &&
(entry->ExpectedSize != entry->TransferSize)) {
MSG_HTTP("Content-Length does NOT match message body,\n"
" at: %s\n", URL_STR_(entry->Url));
MSG("entry->ExpectedSize = %d, entry->TransferSize = %d\n",
entry->ExpectedSize, entry->TransferSize);
}
if (!entry->TransferSize && !(entry->Flags & CA_Redirect) &&
(entry->Flags & WEB_RootUrl)) {
char *eol = strchr(entry->Header->str, '\n');
if (eol) {
char *status_line = dStrndup(entry->Header->str,
eol - entry->Header->str);
MSG_HTTP("Body was empty. Server sent status: %s\n", status_line);
dFree(status_line);
}
}
entry->Flags |= CA_GotData;
entry->Flags &= ~CA_Stopped; /* it may catch up! */
if (entry->TransferDecoder) {
a_Decode_free(entry->TransferDecoder);
entry->TransferDecoder = NULL;
}
if (entry->ContentDecoder) {
a_Decode_free(entry->ContentDecoder);
entry->ContentDecoder = NULL;
}
dStr_fit(entry->Data); /* fit buffer size! */
if ((entry = Cache_process_queue(entry))) {
if (entry->Flags & CA_GotHeader) {
Cache_unref_data(entry);
}
}
} else if (Op == IOAbort) {
/* unused */
MSG("a_Cache_process_dbuf Op = IOAbort; not implemented!\n");
}
}
/*
* Receive new data, update the reception buffer (for next read), update the
* cache, and service the client queue.
*
* This function gets called whenever the IO has new data.
* 'Op' is the operation to perform
* 'VPtr' is a (void) pointer to the IO control structure
*/
bool_t a_Cache_process_dbuf(int Op, const char *buf, size_t buf_size,
const DilloUrl *Url)
{
int offset, len;
const char *str;
Dstr *dstr1, *dstr2, *dstr3;
bool_t done = FALSE;
CacheEntry_t *entry = Cache_entry_search(Url);
/* Assert a valid entry (not aborted) */
dReturn_val_if_fail (entry != NULL, FALSE);
_MSG("__a_Cache_process_dbuf__\n");
if (Op == IORead) {
/*
* Cache_get_header() will set CA_GotHeader if it has a full header, and
* Cache_parse_header() will unset it if the header ends being
* merely an informational response from the server (i.e., 100 Continue)
*/
for (offset = 0; !(entry->Flags & CA_GotHeader) &&
(len = Cache_get_header(entry, buf + offset, buf_size - offset));
Cache_parse_header(entry) ) {
offset += len;
}
if (entry->Flags & CA_GotHeader) {
str = buf + offset;
len = buf_size - offset;
entry->TransferSize += len;
dstr1 = dstr2 = dstr3 = NULL;
/* Decode arrived data (<= 3 stages) */
if (entry->TransferDecoder) {
dstr1 = a_Decode_transfer_process(entry->TransferDecoder, str,len);
done = a_Decode_transfer_finished(entry->TransferDecoder);
str = dstr1->str;
len = dstr1->len;
}
if (entry->ContentDecoder) {
dstr2 = a_Decode_process(entry->ContentDecoder, str, len);
str = dstr2->str;
len = dstr2->len;
}
dStr_append_l(entry->Data, str, len);
if (entry->CharsetDecoder && entry->UTF8Data) {
dstr3 = a_Decode_process(entry->CharsetDecoder, str, len);
dStr_append_l(entry->UTF8Data, dstr3->str, dstr3->len);
}
dStr_free(dstr1, 1);
dStr_free(dstr2, 1);
dStr_free(dstr3, 1);
if (entry->Data->len)
entry->Flags &= ~CA_IsEmpty;
if ((entry->Flags & CA_GotLength) &&
(entry->TransferSize >= entry->ExpectedSize)) {
done = TRUE;
}
if (!(entry->Flags & CA_KeepAlive)) {
/* Let IOClose finish it later */
done = FALSE;
}
entry = Cache_process_queue(entry);
if (entry && done)
Cache_finish_msg(entry);
}
} else if (Op == IOClose) {
Cache_finish_msg(entry);
} else if (Op == IOAbort) {
int i;
CacheClient_t *Client;
for (i = 0; (Client = dList_nth_data(ClientQueue, i)); ++i) {
if (Client->Url == entry->Url) {
DilloWeb *web = (DilloWeb *)Client->Web;
a_Bw_remove_client(web->bw, Client->Key);
Cache_client_dequeue(Client);
--i; /* Keep the index value in the next iteration */
}
}
}
return done;
}