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, 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;
}

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

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, "Failure to push v1d processor");
                        return;
                }
        }

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

        if (WS_Overflowed(req->sp->ws)) {
                v1d_error(req, "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, "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	975	v1d_error(struct req req, 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	975	AZ(req->wrk->v1l);
50
51	975	VSLbs(req->vsl, SLT_Error, TOSTRAND(msg));
52	975	VSLb(req->vsl, SLT_RespProtocol, "HTTP/1.1");
53	975	VSLb(req->vsl, SLT_RespStatus, "500");
54	975	VSLb(req->vsl, SLT_RespReason, "Internal Server Error");
55
56	975	req->wrk->stats->client_resp_500++;
57	975	VTCP_Assert(write(req->sp->fd, r_500, sizeof r_500 - 1));
58	975	req->doclose = SC_TX_EOF;
59	975	}
60
61		/*--------------------------------------------------------------------
62		*/
63
64		void v_matchproto_(vtr_deliver_f)
65	69798	V1D_Deliver(struct req req, struct boc boc, int sendbody)
66		{
67		struct vrt_ctx ctx[1];
68	69798	int err = 0, chunked = 0;
69		stream_close_t sc;
70		uint64_t hdrbytes, bytes;
71
72	69798	CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
73	69798	CHECK_OBJ_ORNULL(boc, BOC_MAGIC);
74	69798	CHECK_OBJ_NOTNULL(req->objcore, OBJCORE_MAGIC);
75
76	69798	if (req->doclose == SC_NULL &&
77	65440	http_HdrIs(req->resp, H_Connection, "close")) {
78	175	req->doclose = SC_RESP_CLOSE;
79	69798	} else if (req->doclose != SC_NULL) {
80	4346	if (!http_HdrIs(req->resp, H_Connection, "close")) {
81	4265	http_Unset(req->resp, H_Connection);
82	4265	http_SetHeader(req->resp, "Connection: close");
83	4265	}
84	69623	} else if (!http_GetHdr(req->resp, H_Connection, NULL))
85	65267	http_SetHeader(req->resp, "Connection: keep-alive");
86
87	69788	if (sendbody) {
88	45560	if (!http_GetHdr(req->resp, H_Content_Length, NULL)) {
89	6480	if (req->http->protover == 11) {
90	6380	chunked = 1;
91	6380	http_SetHeader(req->resp,
92		"Transfer-Encoding: chunked");
93	6380	} else {
94	100	req->doclose = SC_TX_EOF;
95		}
96	6480	}
97	45560	INIT_OBJ(ctx, VRT_CTX_MAGIC);
98	45560	VCL_Req2Ctx(ctx, req);
99	45560	if (VDP_Push(ctx, req->vdc, req->ws, VDP_v1l, NULL)) {
100	725	v1d_error(req, "Failure to push v1d processor");
101	725	return;
102		}
103	44835	}
104
105	69063	if (WS_Overflowed(req->ws)) {
106	225	v1d_error(req, "workspace_client overflow");
107	225	return;
108		}
109
110	68838	if (WS_Overflowed(req->sp->ws)) {
111	25	v1d_error(req, "workspace_session overflow");
112	25	return;
113		}
114
115	137626	V1L_Open(req->wrk, req->wrk->aws, &req->sp->fd, req->vsl,
116	68813	req->t_prev + SESS_TMO(req->sp, send_timeout),
117	68813	cache_param->http1_iovs);
118
119	68813	if (WS_Overflowed(req->wrk->aws)) {
120	0	v1d_error(req, "workspace_thread overflow");
121	0	return;
122		}
123
124	68813	hdrbytes = HTTP1_Write(req->wrk, req->resp, HTTP1_Resp);
125
126	68813	if (sendbody) {
127	44818	if (DO_DEBUG(DBG_FLUSH_HEAD))
128	275	(void)V1L_Flush(req->wrk);
129	44818	if (chunked)
130	6355	V1L_Chunked(req->wrk);
131	44818	err = VDP_DeliverObj(req->vdc, req->objcore);
132	44818	if (!err && chunked)
133	5829	V1L_EndChunk(req->wrk);
134	44818	}
135
136	68813	sc = V1L_Close(req->wrk, &bytes);
137	68813	AZ(req->wrk->v1l);
138
139	68813	req->acct.resp_hdrbytes += hdrbytes;
140	68813	req->acct.resp_bodybytes += VDP_Close(req->vdc, req->objcore, boc);
141
142	68813	if (sc == SC_NULL && err && req->sp->fd >= 0)
143	375	sc = SC_REM_CLOSE;
144	68813	if (sc != SC_NULL)
145	675	Req_Fail(req, sc);
146	69788	}