static void
cnt_vdp(struct req *req, struct busyobj *bo)
{
const char *r;
uint16_t status;
int wantbody;
CHECK_OBJ_NOTNULL(req->transport, TRANSPORT_MAGIC);
req->res_mode = 0;
wantbody = 1;
status = http_GetStatus(req->resp);
if (!strcmp(req->http0->hd[HTTP_HDR_METHOD].b, "HEAD")) {
wantbody = 0;
} else if (status < 200 || status == 204) {
req->resp_len = 0;
http_Unset(req->resp, H_Content_Length);
wantbody = 0;
} else if (status == 304) {
http_Unset(req->resp, H_Content_Length);
wantbody = 0;
} else if (bo != NULL)
req->resp_len = http_GetContentLength(req->resp);
else
req->resp_len = ObjGetLen(req->wrk, req->objcore);
/*
* Determine ESI status first. Not dependent on wantbody, because
* we want ESI to supress C-L in HEAD too.
*/
if (!req->disable_esi && req->resp_len != 0 && wantbody &&
ObjGetattr(req->wrk, req->objcore, OA_ESIDATA, NULL) != NULL) {
req->res_mode |= RES_ESI;
RFC2616_Weaken_Etag(req->resp);
req->resp_len = -1;
VDP_push(req, VDP_ESI, NULL, 0);
}
if (cache_param->http_gzip_support &&
ObjCheckFlag(req->wrk, req->objcore, OF_GZIPED) &&
!RFC2616_Req_Gzip(req->http)) {
req->res_mode |= RES_GUNZIP;
VDP_push(req, VDP_gunzip, NULL, 1);
}
/*
* Range comes after the others and pushes on bottom because
* it can (maybe) generate a correct C-L header.
*/
if (cache_param->http_range_support && http_IsStatus(req->resp, 200)) {
http_SetHeader(req->resp, "Accept-Ranges: bytes");
if (wantbody && http_GetHdr(req->http, H_Range, &r))
VRG_dorange(req, r);
}
req->transport->deliver(req, bo, wantbody);
}
static enum req_fsm_nxt
cnt_transmit(struct worker *wrk, struct req *req)
{
struct boc *boc;
const char *r;
uint16_t status;
int sendbody;
intmax_t clval;
CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC);
CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
CHECK_OBJ_NOTNULL(req->transport, TRANSPORT_MAGIC);
/* Grab a ref to the bo if there is one */
boc = HSH_RefBoc(req->objcore);
clval = http_GetContentLength(req->resp);
if (boc != NULL)
req->resp_len = clval;
else
req->resp_len = ObjGetLen(req->wrk, req->objcore);
req->res_mode = 0;
/* RFC 7230, 3.3.3 */
status = http_GetStatus(req->resp);
if (!strcmp(req->http0->hd[HTTP_HDR_METHOD].b, "HEAD")) {
if (req->objcore->flags & OC_F_PASS)
sendbody = -1;
else
sendbody = 0;
} else if (status < 200 || status == 204 || status == 304) {
req->resp_len = -1;
sendbody = 0;
} else
sendbody = 1;
if (sendbody >= 0) {
if (!req->disable_esi && req->resp_len != 0 &&
ObjHasAttr(wrk, req->objcore, OA_ESIDATA))
VDP_push(req, VDP_ESI, NULL, 0, "ESI");
if (cache_param->http_gzip_support &&
ObjCheckFlag(req->wrk, req->objcore, OF_GZIPED) &&
!RFC2616_Req_Gzip(req->http))
VDP_push(req, VDP_gunzip, NULL, 1, "GUZ");
if (cache_param->http_range_support &&
http_IsStatus(req->resp, 200)) {
http_SetHeader(req->resp, "Accept-Ranges: bytes");
if (sendbody && http_GetHdr(req->http, H_Range, &r))
VRG_dorange(req, r);
}
}
if (sendbody < 0) {
/* Don't touch pass+HEAD C-L */
sendbody = 0;
} else if (clval >= 0 && clval == req->resp_len) {
/* Reuse C-L header */
} else {
http_Unset(req->resp, H_Content_Length);
if (req->resp_len >= 0 && sendbody)
http_PrintfHeader(req->resp,
"Content-Length: %jd", req->resp_len);
}
req->transport->deliver(req, boc, sendbody);
VSLb_ts_req(req, "Resp", W_TIM_real(wrk));
if (req->objcore->flags & (OC_F_PRIVATE | OC_F_PASS)) {
if (boc != NULL) {
HSH_Abandon(req->objcore);
ObjWaitState(req->objcore, BOS_FINISHED);
}
ObjSlim(wrk, req->objcore);
}
if (boc != NULL)
HSH_DerefBoc(wrk, req->objcore);
(void)HSH_DerefObjCore(wrk, &req->objcore);
http_Teardown(req->resp);
return (REQ_FSM_DONE);
}
void
V1D_Deliver(struct req *req, struct busyobj *bo)
{
const char *r;
enum objiter_status ois;
CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
CHECK_OBJ_NOTNULL(req->objcore, OBJCORE_MAGIC);
req->res_mode = 0;
/*
* Determine ESI status first. Not dependent on wantbody, because
* we want ESI to supress C-L in HEAD too.
*/
if (!req->disable_esi &&
ObjGetattr(req->wrk, req->objcore, OA_ESIDATA, NULL) != NULL)
req->res_mode |= RES_ESI;
/*
* ESI-childen don't care about headers -> early escape
*/
if (req->esi_level > 0) {
ESI_DeliverChild(req, bo);
return;
}
if (req->res_mode & RES_ESI) {
RFC2616_Weaken_Etag(req->resp);
} else if (http_IsStatus(req->resp, 304)) {
http_Unset(req->resp, H_Content_Length);
req->wantbody = 0;
} else if (bo == NULL &&
!http_GetHdr(req->resp, H_Content_Length, NULL)) {
http_PrintfHeader(req->resp,
"Content-Length: %ju", (uintmax_t)ObjGetLen(
req->wrk, req->objcore));
}
if (cache_param->http_gzip_support &&
ObjCheckFlag(req->wrk, req->objcore, OF_GZIPED) &&
!RFC2616_Req_Gzip(req->http)) {
/*
* We don't know what it uncompresses to
* XXX: we could cache that, but would still deliver
* XXX: with multiple writes because of the gunzip buffer
*/
req->res_mode |= RES_GUNZIP;
VDP_push(req, VDP_gunzip, NULL, 0);
}
if (req->res_mode & RES_ESI) {
/* Gunzip could have added back a C-L */
http_Unset(req->resp, H_Content_Length);
}
/*
* Range comes after the others and pushes on bottom because it
* can generate a correct C-L header.
*/
if (cache_param->http_range_support && http_IsStatus(req->resp, 200)) {
http_SetHeader(req->resp, "Accept-Ranges: bytes");
if (req->wantbody && http_GetHdr(req->http, H_Range, &r))
VRG_dorange(req, bo, r);
}
if (http_GetHdr(req->resp, H_Content_Length, NULL))
req->res_mode |= RES_LEN;
if (req->wantbody && !(req->res_mode & RES_LEN)) {
if (req->http->protover >= 11) {
req->res_mode |= RES_CHUNKED;
http_SetHeader(req->resp, "Transfer-Encoding: chunked");
} else {
req->res_mode |= RES_EOF;
req->doclose = SC_TX_EOF;
}
}
VSLb(req->vsl, SLT_Debug, "RES_MODE %x", req->res_mode);
if (req->doclose) {
if (!http_HdrIs(req->resp, H_Connection, "close")) {
http_Unset(req->resp, H_Connection);
http_SetHeader(req->resp, "Connection: close");
}
} else if (!http_GetHdr(req->resp, H_Connection, NULL))
http_SetHeader(req->resp, "Connection: keep-alive");
VDP_push(req, v1d_bytes, NULL, 1);
V1L_Reserve(req->wrk, req->ws, &req->sp->fd, req->vsl, req->t_prev);
req->acct.resp_hdrbytes += HTTP1_Write(req->wrk, req->resp, HTTP1_Resp);
if (DO_DEBUG(DBG_FLUSH_HEAD))
(void)V1L_Flush(req->wrk);
ois = OIS_DONE;
if (req->wantbody) {
if (req->res_mode & RES_CHUNKED)
V1L_Chunked(req->wrk);
ois = VDP_DeliverObj(req);
(void)VDP_bytes(req, VDP_FLUSH, NULL, 0);
if (ois == OIS_DONE && (req->res_mode & RES_CHUNKED))
V1L_EndChunk(req->wrk);
}
if ((V1L_FlushRelease(req->wrk) || ois != OIS_DONE) && req->sp->fd >= 0)
SES_Close(req->sp, SC_REM_CLOSE);
VDP_close(req);
}
