void
ts_http_fetcher_extract(http_fetcher *fch)
{
TSMLoc cl_loc, te_loc;
const char *val;
int val_len;
int i, n;
fch->status_code = TSHttpHdrStatusGet(fch->hdr_bufp, fch->hdr_loc);
cl_loc = TSMimeHdrFieldFind(fch->hdr_bufp, fch->hdr_loc, TS_MIME_FIELD_CONTENT_LENGTH, TS_MIME_LEN_CONTENT_LENGTH);
if (cl_loc)
fch->resp_cl = TSMimeHdrFieldValueInt64Get(fch->hdr_bufp, fch->hdr_loc, cl_loc, -1);
else
fch->resp_cl = -1;
te_loc = TSMimeHdrFieldFind(fch->hdr_bufp, fch->hdr_loc, TS_MIME_FIELD_TRANSFER_ENCODING, TS_MIME_LEN_TRANSFER_ENCODING);
if (te_loc) {
n = TSMimeHdrFieldValuesCount(fch->hdr_bufp, fch->hdr_loc, te_loc);
for (i = 0; i < n; i++) {
val = TSMimeHdrFieldValueStringGet(fch->hdr_bufp, fch->hdr_loc, te_loc, i, &val_len);
if ((val_len == TS_HTTP_LEN_CHUNKED) && (strncasecmp(val, TS_HTTP_VALUE_CHUNKED, val_len) == 0)) {
fch->chunked = 1;
break;
}
}
}
if (cl_loc)
TSHandleMLocRelease(fch->hdr_bufp, fch->hdr_loc, cl_loc);
if (te_loc) {
if (fch->flags & TS_FLAG_FETCH_FORCE_DECHUNK)
TSMimeHdrFieldDestroy(fch->hdr_bufp, fch->hdr_loc, te_loc);
TSHandleMLocRelease(fch->hdr_bufp, fch->hdr_loc, te_loc);
}
if (fch->chunked) {
if (fch->flags & TS_FLAG_FETCH_FORCE_DECHUNK) {
chunked_info_init(&fch->cinfo, 1);
} else {
chunked_info_init(&fch->cinfo, 0);
}
} else if (fch->resp_cl >= 0) {
fch->resp_already = 0;
}
fch->flow_buffer = TSIOBufferCreate();
fch->flow_reader = TSIOBufferReaderAlloc(fch->flow_buffer);
fch->body_buffer = TSIOBufferCreate();
fch->body_reader = TSIOBufferReaderAlloc(fch->body_buffer);
}
static CachedHeaderInfo *
get_cached_header_info(TSHttpTxn txn)
{
CachedHeaderInfo *chi;
TSMBuffer cr_buf;
TSMLoc cr_hdr_loc, cr_date_loc, cr_cache_control_loc, cr_cache_control_dup_loc;
int cr_cache_control_count, val_len, i;
char *value, *ptr;
chi = (CachedHeaderInfo *)TSmalloc(sizeof(CachedHeaderInfo));
memset(chi, 0, sizeof(CachedHeaderInfo));
if (TSHttpTxnCachedRespGet(txn, &cr_buf, &cr_hdr_loc) == TS_SUCCESS) {
cr_date_loc = TSMimeHdrFieldFind(cr_buf, cr_hdr_loc, TS_MIME_FIELD_DATE, TS_MIME_LEN_DATE);
if (cr_date_loc != TS_NULL_MLOC) {
TSDebug(PLUGIN_NAME, "Found a date");
chi->date = TSMimeHdrFieldValueDateGet(cr_buf, cr_hdr_loc, cr_date_loc);
TSHandleMLocRelease(cr_buf, cr_hdr_loc, cr_date_loc);
}
cr_cache_control_loc = TSMimeHdrFieldFind(cr_buf, cr_hdr_loc, TS_MIME_FIELD_CACHE_CONTROL, TS_MIME_LEN_CACHE_CONTROL);
while (cr_cache_control_loc != TS_NULL_MLOC) {
TSDebug(PLUGIN_NAME, "Found cache-control");
cr_cache_control_count = TSMimeHdrFieldValuesCount(cr_buf, cr_hdr_loc, cr_cache_control_loc);
for (i = 0; i < cr_cache_control_count; i++) {
value = (char *)TSMimeHdrFieldValueStringGet(cr_buf, cr_hdr_loc, cr_cache_control_loc, i, &val_len);
ptr = value;
if (strncmp(value, TS_HTTP_VALUE_MAX_AGE, TS_HTTP_LEN_MAX_AGE) == 0) {
TSDebug(PLUGIN_NAME, "Found max-age");
ptr += TS_HTTP_LEN_MAX_AGE;
if (*ptr == '=') {
ptr++;
chi->max_age = atol(ptr);
} else {
ptr = TSstrndup(value, TS_HTTP_LEN_MAX_AGE + 2);
TSDebug(PLUGIN_NAME, "This is what I found: %s", ptr);
TSfree(ptr);
}
} else if (strncmp(value, HTTP_VALUE_STALE_WHILE_REVALIDATE, strlen(HTTP_VALUE_STALE_WHILE_REVALIDATE)) == 0) {
TSDebug(PLUGIN_NAME, "Found stale-while-revalidate");
ptr += strlen(HTTP_VALUE_STALE_WHILE_REVALIDATE);
if (*ptr == '=') {
ptr++;
chi->stale_while_revalidate = atol(ptr);
}
} else if (strncmp(value, HTTP_VALUE_STALE_IF_ERROR, strlen(HTTP_VALUE_STALE_IF_ERROR)) == 0) {
TSDebug(PLUGIN_NAME, "Found stale-on-error");
ptr += strlen(HTTP_VALUE_STALE_IF_ERROR);
if (*ptr == '=') {
ptr++;
chi->stale_on_error = atol(ptr);
}
} else {
TSDebug(PLUGIN_NAME, "Unknown field value");
}
}
cr_cache_control_dup_loc = TSMimeHdrFieldNextDup(cr_buf, cr_hdr_loc, cr_cache_control_loc);
TSHandleMLocRelease(cr_buf, cr_hdr_loc, cr_cache_control_loc);
cr_cache_control_loc = cr_cache_control_dup_loc;
}
TSHandleMLocRelease(cr_buf, TS_NULL_MLOC, cr_hdr_loc);
}
return chi;
}
