/*
* Free the components of a CacheEntry_t struct.
*/
static void Cache_entry_free(CacheEntry_t *entry)
{
a_Url_free((DilloUrl *)entry->Url);
dFree(entry->TypeDet);
dFree(entry->TypeHdr);
dFree(entry->TypeMeta);
dFree(entry->TypeNorm);
dStr_free(entry->Header, TRUE);
a_Url_free((DilloUrl *)entry->Location);
Cache_auth_free(entry->Auth);
dStr_free(entry->Data, 1);
dStr_free(entry->UTF8Data, 1);
if (entry->CharsetDecoder)
a_Decode_free(entry->CharsetDecoder);
if (entry->TransferDecoder)
a_Decode_free(entry->TransferDecoder);
if (entry->ContentDecoder)
a_Decode_free(entry->ContentDecoder);
dFree(entry);
}
/*
* Change Content-Type for cache entry found by url.
* from = { "http" | "meta" }
* Return new content type.
*/
const char *a_Cache_set_content_type(const DilloUrl *url, const char *ctype,
const char *from)
{
const char *curr;
char *major, *minor, *charset;
CacheEntry_t *entry = Cache_entry_search(url);
dReturn_val_if_fail (entry != NULL, NULL);
_MSG("a_Cache_set_content_type {%s} {%s}\n", ctype, URL_STR(url));
curr = Cache_current_content_type(entry);
if (entry->TypeMeta || (*from == 'h' && entry->TypeHdr) ) {
/* Type is already been set. Do nothing.
* BTW, META overrides TypeHdr */
} else {
if (*from == 'h') {
/* Content-Type from HTTP header */
entry->TypeHdr = dStrdup(ctype);
} else {
/* Content-Type from META */
entry->TypeMeta = dStrdup(ctype);
}
if (a_Misc_content_type_cmp(curr, ctype)) {
/* ctype gives one different from current */
a_Misc_parse_content_type(ctype, &major, &minor, &charset);
if (*from == 'm' && charset &&
((!major || !*major) && (!minor || !*minor))) {
/* META only gives charset; use detected MIME type too */
entry->TypeNorm = dStrconcat(entry->TypeDet, ctype, NULL);
} else if (*from == 'm' &&
!dStrnAsciiCasecmp(ctype, "text/xhtml", 10)) {
/* WORKAROUND: doxygen uses "text/xhtml" in META */
entry->TypeNorm = dStrdup(entry->TypeDet);
}
if (charset) {
if (entry->CharsetDecoder)
a_Decode_free(entry->CharsetDecoder);
entry->CharsetDecoder = a_Decode_charset_init(charset);
curr = Cache_current_content_type(entry);
/* Invalidate UTF8Data */
dStr_free(entry->UTF8Data, 1);
entry->UTF8Data = NULL;
}
dFree(major); dFree(minor); dFree(charset);
}
}
return curr;
}
static void Cache_finish_msg(CacheEntry_t *entry)
{
if (entry->Flags & CA_GotData) {
/* already finished */
return;
}
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 at\n"
"%s\n", URL_STR_(entry->Url));
MSG("Expected size: %d, Transfer size: %d\n",
entry->ExpectedSize, entry->TransferSize);
}
entry->Flags |= CA_GotData;
entry->Flags &= ~CA_Stopped; /* it may catch up! */
if (entry->TransferDecoder) {
a_Decode_transfer_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);
}
}
}
/*
* 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");
}
}
