GCOV - Varnish Cache


/*-
 * Copyright (c) 2006 Verdens Gang AS
 * Copyright (c) 2006-2015 Varnish Software AS
 * All rights reserved.
 *
 * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "config.h"

#include "cache/cache_varnishd.h"
#include "cache/cache_filter.h"
#include "cache_http1.h"

#include "vtcp.h"

/*--------------------------------------------------------------------*/

static void
v1d_error(struct req *req, struct boc *boc, const char *msg)
{
        static const char r_500[] =
            "HTTP/1.1 500 Internal Server Error\r\n"
            "Server: Varnish\r\n"
            "Connection: close\r\n\r\n";

        AZ(req->wrk->v1l);

        VSLbs(req->vsl, SLT_Error, TOSTRAND(msg));
        VSLb(req->vsl, SLT_RespProtocol, "HTTP/1.1");
        VSLb(req->vsl, SLT_RespStatus, "500");
        VSLb(req->vsl, SLT_RespReason, "Internal Server Error");

        req->wrk->stats->client_resp_500++;
        VTCP_Assert(write(req->sp->fd, r_500, sizeof r_500 - 1));
        req->doclose = SC_TX_EOF;

        req->acct.resp_bodybytes += VDP_Close(req->vdc, req->objcore, boc);
}

/*--------------------------------------------------------------------
 */

void v_matchproto_(vtr_deliver_f)
V1D_Deliver(struct req *req, struct boc *boc, int sendbody)
{
        struct vrt_ctx ctx[1];
        int err = 0, chunked = 0;
        stream_close_t sc;
        uint64_t hdrbytes, bytes;

        CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
        CHECK_OBJ_ORNULL(boc, BOC_MAGIC);
        CHECK_OBJ_NOTNULL(req->objcore, OBJCORE_MAGIC);

        if (req->doclose == SC_NULL &&
            http_HdrIs(req->resp, H_Connection, "close")) {
                req->doclose = SC_RESP_CLOSE;
        } else if (req->doclose != SC_NULL) {
                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");

        if (sendbody) {
                if (!http_GetHdr(req->resp, H_Content_Length, NULL)) {
                        if (req->http->protover == 11) {
                                chunked = 1;
                                http_SetHeader(req->resp,
                                    "Transfer-Encoding: chunked");
                        } else {
                                req->doclose = SC_TX_EOF;
                        }
                }
                INIT_OBJ(ctx, VRT_CTX_MAGIC);
                VCL_Req2Ctx(ctx, req);
                if (VDP_Push(ctx, req->vdc, req->ws, VDP_v1l, NULL)) {
                        v1d_error(req, boc, "Failure to push v1d processor");
                        return;
                }
        }

        if (WS_Overflowed(req->ws)) {
                v1d_error(req, boc, "workspace_client overflow");
                return;
        }

        if (WS_Overflowed(req->sp->ws)) {
                v1d_error(req, boc, "workspace_session overflow");
                return;
        }

        V1L_Open(req->wrk, req->wrk->aws, &req->sp->fd, req->vsl,
            req->t_prev + SESS_TMO(req->sp, send_timeout),
            cache_param->http1_iovs);

        if (WS_Overflowed(req->wrk->aws)) {
                v1d_error(req, boc, "workspace_thread overflow");
                return;
        }

        hdrbytes = HTTP1_Write(req->wrk, req->resp, HTTP1_Resp);

        if (sendbody) {
                if (DO_DEBUG(DBG_FLUSH_HEAD))
                        (void)V1L_Flush(req->wrk);
                if (chunked)
                        V1L_Chunked(req->wrk);
                err = VDP_DeliverObj(req->vdc, req->objcore);
                if (!err && chunked)
                        V1L_EndChunk(req->wrk);
        }

        sc = V1L_Close(req->wrk, &bytes);
        AZ(req->wrk->v1l);

        req->acct.resp_hdrbytes += hdrbytes;
        req->acct.resp_bodybytes += VDP_Close(req->vdc, req->objcore, boc);

        if (sc == SC_NULL && err && req->sp->fd >= 0)
                sc = SC_REM_CLOSE;
        if (sc != SC_NULL)
                Req_Fail(req, sc);
}

		varnish-cache/bin/varnishd/http1/cache_http1_deliver.c
0		/*-
1		* Copyright (c) 2006 Verdens Gang AS
2		* Copyright (c) 2006-2015 Varnish Software AS
3		* All rights reserved.
4		*
5		* Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
6		*
7		* SPDX-License-Identifier: BSD-2-Clause
8		*
9		* Redistribution and use in source and binary forms, with or without
10		* modification, are permitted provided that the following conditions
11		* are met:
12		* 1. Redistributions of source code must retain the above copyright
13		* notice, this list of conditions and the following disclaimer.
14		* 2. Redistributions in binary form must reproduce the above copyright
15		* notice, this list of conditions and the following disclaimer in the
16		* documentation and/or other materials provided with the distribution.
17		*
18		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19		* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21		* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
22		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23		* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24		* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26		* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28		* SUCH DAMAGE.
29		*/
30
31		#include "config.h"
32
33		#include "cache/cache_varnishd.h"
34		#include "cache/cache_filter.h"
35		#include "cache_http1.h"
36
37		#include "vtcp.h"
38
39		/--------------------------------------------------------------------/
40
41		static void
42	4120	v1d_error(struct req req, struct boc boc, const char *msg)
43		{
44		static const char r_500[] =
45		"HTTP/1.1 500 Internal Server Error\r\n"
46		"Server: Varnish\r\n"
47		"Connection: close\r\n\r\n";
48
49	4120	AZ(req->wrk->v1l);
50
51	4120	VSLbs(req->vsl, SLT_Error, TOSTRAND(msg));
52	4120	VSLb(req->vsl, SLT_RespProtocol, "HTTP/1.1");
53	4120	VSLb(req->vsl, SLT_RespStatus, "500");
54	4120	VSLb(req->vsl, SLT_RespReason, "Internal Server Error");
55
56	4120	req->wrk->stats->client_resp_500++;
57	4120	VTCP_Assert(write(req->sp->fd, r_500, sizeof r_500 - 1));
58	4120	req->doclose = SC_TX_EOF;
59
60	4120	req->acct.resp_bodybytes += VDP_Close(req->vdc, req->objcore, boc);
61	4120	}
62
63		/*--------------------------------------------------------------------
64		*/
65
66		void v_matchproto_(vtr_deliver_f)
67	119119	V1D_Deliver(struct req req, struct boc boc, int sendbody)
68		{
69		struct vrt_ctx ctx[1];
70	119119	int err = 0, chunked = 0;
71		stream_close_t sc;
72		uint64_t hdrbytes, bytes;
73
74	119119	CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
75	119119	CHECK_OBJ_ORNULL(boc, BOC_MAGIC);
76	119119	CHECK_OBJ_NOTNULL(req->objcore, OBJCORE_MAGIC);
77
78	119119	if (req->doclose == SC_NULL &&
79	110343	http_HdrIs(req->resp, H_Connection, "close")) {
80	280	req->doclose = SC_RESP_CLOSE;
81	119119	} else if (req->doclose != SC_NULL) {
82	8761	if (!http_HdrIs(req->resp, H_Connection, "close")) {
83	8621	http_Unset(req->resp, H_Connection);
84	8621	http_SetHeader(req->resp, "Connection: close");
85	8621	}
86	118839	} else if (!http_GetHdr(req->resp, H_Connection, NULL))
87	110062	http_SetHeader(req->resp, "Connection: keep-alive");
88
89	119097	if (sendbody) {
90	78141	if (!http_GetHdr(req->resp, H_Content_Length, NULL)) {
91	10239	if (req->http->protover == 11) {
92	10079	chunked = 1;
93	10079	http_SetHeader(req->resp,
94		"Transfer-Encoding: chunked");
95	10079	} else {
96	160	req->doclose = SC_TX_EOF;
97		}
98	10239	}
99	78141	INIT_OBJ(ctx, VRT_CTX_MAGIC);
100	78141	VCL_Req2Ctx(ctx, req);
101	78141	if (VDP_Push(ctx, req->vdc, req->ws, VDP_v1l, NULL)) {
102	2280	v1d_error(req, boc, "Failure to push v1d processor");
103	2280	return;
104		}
105	75861	}
106
107	116817	if (WS_Overflowed(req->ws)) {
108	1800	v1d_error(req, boc, "workspace_client overflow");
109	1800	return;
110		}
111
112	115017	if (WS_Overflowed(req->sp->ws)) {
113	40	v1d_error(req, boc, "workspace_session overflow");
114	40	return;
115		}
116
117	229954	V1L_Open(req->wrk, req->wrk->aws, &req->sp->fd, req->vsl,
118	114977	req->t_prev + SESS_TMO(req->sp, send_timeout),
119	114977	cache_param->http1_iovs);
120
121	114977	if (WS_Overflowed(req->wrk->aws)) {
122	0	v1d_error(req, boc, "workspace_thread overflow");
123	0	return;
124		}
125
126	114977	hdrbytes = HTTP1_Write(req->wrk, req->resp, HTTP1_Resp);
127
128	114977	if (sendbody) {
129	75666	if (DO_DEBUG(DBG_FLUSH_HEAD))
130	439	(void)V1L_Flush(req->wrk);
131	75666	if (chunked)
132	10039	V1L_Chunked(req->wrk);
133	75666	err = VDP_DeliverObj(req->vdc, req->objcore);
134	75666	if (!err && chunked)
135	9196	V1L_EndChunk(req->wrk);
136	75666	}
137
138	114977	sc = V1L_Close(req->wrk, &bytes);
139	114977	AZ(req->wrk->v1l);
140
141	114977	req->acct.resp_hdrbytes += hdrbytes;
142	114977	req->acct.resp_bodybytes += VDP_Close(req->vdc, req->objcore, boc);
143
144	114977	if (sc == SC_NULL && err && req->sp->fd >= 0)
145	600	sc = SC_REM_CLOSE;
146	114977	if (sc != SC_NULL)
147	1080	Req_Fail(req, sc);
148	119097	}