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 "cache/cache_transport.h"

#include "vtcp.h"

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

static void
v1d_error(struct req *req, struct v1l **v1lp, 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";
        uint64_t bytes;

        AN(v1lp);
        if (*v1lp != NULL)
                (void) V1L_Close(v1lp, &bytes);

        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, req->boc);
}

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

enum vtr_deliver_e v_matchproto_(vtr_deliver_f)
V1D_Deliver(struct req *req, int sendbody)
{
        struct vrt_ctx ctx[1];
        int err = 0, chunked = 0;
        stream_close_t sc;
        uint64_t bytes;
        struct v1l *v1l;

        CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
        CHECK_OBJ_ORNULL(req->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");

        CHECK_OBJ_NOTNULL(req->wrk, WORKER_MAGIC);

        v1l = V1L_Open(req->wrk->aws, &req->sp->fd, req->vsl,
            req->t_prev + SESS_TMO(req->sp, send_timeout),
            cache_param->http1_iovs);

        if (v1l == NULL) {
                v1d_error(req, &v1l, "Failure to init v1d (workspace_thread overflow)");
                return (VTR_D_DONE);
        }

        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, v1l)) {
                        v1d_error(req, &v1l, "Failure to push v1d processor");
                        return (VTR_D_DONE);
                }
        }

        if (WS_Overflowed(req->ws)) {
                v1d_error(req, &v1l, "workspace_client overflow");
                return (VTR_D_DONE);
        }

        if (WS_Overflowed(req->sp->ws)) {
                v1d_error(req, &v1l, "workspace_session overflow");
                return (VTR_D_DONE);
        }

        if (WS_Overflowed(req->wrk->aws)) {
                v1d_error(req, &v1l, "workspace_thread overflow");
                return (VTR_D_DONE);
        }

        req->acct.resp_hdrbytes += HTTP1_Write(v1l, req->resp, HTTP1_Resp);

        if (sendbody) {
                if (DO_DEBUG(DBG_FLUSH_HEAD))
                        (void)V1L_Flush(v1l);
                if (chunked)
                        V1L_Chunked(v1l);
                err = VDP_DeliverObj(req->vdc, req->objcore);
                if (!err && chunked)
                        V1L_EndChunk(v1l);
        }

        sc = V1L_Close(&v1l, &bytes);

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

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

		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		#include "cache/cache_transport.h"
37
38		#include "vtcp.h"
39
40		/--------------------------------------------------------------------/
41
42		static void
43	4120	v1d_error(struct req req, struct v1l v1lp, const char msg)
44		{
45		static const char r_500[] =
46		"HTTP/1.1 500 Internal Server Error\r\n"
47		"Server: Varnish\r\n"
48		"Connection: close\r\n\r\n";
49		uint64_t bytes;
50
51	4120	AN(v1lp);
52	4120	if (*v1lp != NULL)
53	4120	(void) V1L_Close(v1lp, &bytes);
54
55	4120	VSLbs(req->vsl, SLT_Error, TOSTRAND(msg));
56	4120	VSLb(req->vsl, SLT_RespProtocol, "HTTP/1.1");
57	4120	VSLb(req->vsl, SLT_RespStatus, "500");
58	4120	VSLb(req->vsl, SLT_RespReason, "Internal Server Error");
59
60	4120	req->wrk->stats->client_resp_500++;
61	4120	VTCP_Assert(write(req->sp->fd, r_500, sizeof r_500 - 1));
62	4120	req->doclose = SC_TX_EOF;
63
64	4120	req->acct.resp_bodybytes += VDP_Close(req->vdc, req->objcore, req->boc);
65	4120	}
66
67		/*--------------------------------------------------------------------
68		*/
69
70		enum vtr_deliver_e v_matchproto_(vtr_deliver_f)
71	123267	V1D_Deliver(struct req *req, int sendbody)
72		{
73		struct vrt_ctx ctx[1];
74	123267	int err = 0, chunked = 0;
75		stream_close_t sc;
76		uint64_t bytes;
77		struct v1l *v1l;
78
79	123267	CHECK_OBJ_NOTNULL(req, REQ_MAGIC);
80	123267	CHECK_OBJ_ORNULL(req->boc, BOC_MAGIC);
81	123267	CHECK_OBJ_NOTNULL(req->objcore, OBJCORE_MAGIC);
82
83	123267	if (req->doclose == SC_NULL &&
84	114310	http_HdrIs(req->resp, H_Connection, "close")) {
85	280	req->doclose = SC_RESP_CLOSE;
86	123267	} else if (req->doclose != SC_NULL) {
87	8942	if (!http_HdrIs(req->resp, H_Connection, "close")) {
88	8855	http_Unset(req->resp, H_Connection);
89	8855	http_SetHeader(req->resp, "Connection: close");
90	8855	}
91	122987	} else if (!http_GetHdr(req->resp, H_Connection, NULL))
92	114029	http_SetHeader(req->resp, "Connection: keep-alive");
93
94	123245	CHECK_OBJ_NOTNULL(req->wrk, WORKER_MAGIC);
95
96	246490	v1l = V1L_Open(req->wrk->aws, &req->sp->fd, req->vsl,
97	123245	req->t_prev + SESS_TMO(req->sp, send_timeout),
98	123245	cache_param->http1_iovs);
99
100	123245	if (v1l == NULL) {
101	0	v1d_error(req, &v1l, "Failure to init v1d (workspace_thread overflow)");
102	0	return (VTR_D_DONE);
103		}
104
105	123245	if (sendbody) {
106	80736	if (!http_GetHdr(req->resp, H_Content_Length, NULL)) {
107	10347	if (req->http->protover == 11) {
108	10187	chunked = 1;
109	10187	http_SetHeader(req->resp,
110		"Transfer-Encoding: chunked");
111	10187	} else {
112	160	req->doclose = SC_TX_EOF;
113		}
114	10347	}
115	80736	INIT_OBJ(ctx, VRT_CTX_MAGIC);
116	80736	VCL_Req2Ctx(ctx, req);
117	80736	if (VDP_Push(ctx, req->vdc, req->ws, VDP_v1l, v1l)) {
118	2280	v1d_error(req, &v1l, "Failure to push v1d processor");
119	2280	return (VTR_D_DONE);
120		}
121	78456	}
122
123	120965	if (WS_Overflowed(req->ws)) {
124	1800	v1d_error(req, &v1l, "workspace_client overflow");
125	1800	return (VTR_D_DONE);
126		}
127
128	119165	if (WS_Overflowed(req->sp->ws)) {
129	40	v1d_error(req, &v1l, "workspace_session overflow");
130	40	return (VTR_D_DONE);
131		}
132
133	119125	if (WS_Overflowed(req->wrk->aws)) {
134	0	v1d_error(req, &v1l, "workspace_thread overflow");
135	0	return (VTR_D_DONE);
136		}
137
138	119125	req->acct.resp_hdrbytes += HTTP1_Write(v1l, req->resp, HTTP1_Resp);
139
140	119125	if (sendbody) {
141	78249	if (DO_DEBUG(DBG_FLUSH_HEAD))
142	438	(void)V1L_Flush(v1l);
143	78249	if (chunked)
144	10147	V1L_Chunked(v1l);
145	78249	err = VDP_DeliverObj(req->vdc, req->objcore);
146	78249	if (!err && chunked)
147	9309	V1L_EndChunk(v1l);
148	78249	}
149
150	119125	sc = V1L_Close(&v1l, &bytes);
151
152	119125	req->acct.resp_bodybytes += VDP_Close(req->vdc, req->objcore, req->boc);
153
154	119125	if (sc == SC_NULL && err && req->sp->fd >= 0)
155	678	sc = SC_REM_CLOSE;
156	119125	if (sc != SC_NULL)
157	1158	Req_Fail(req, sc);
158	119125	return (VTR_D_DONE);
159	123245	}