Makefile- acl.c
- acl.h
- acldata.c
- acldata.h
- auth.c
- auth.h
- config.c
- config.h
- configmanager.c
- configmanager.h
- error.c
- error.h
- event.c
- event.h
- event_bsd.c
- event_bsd.h
- event_linux.c
- event_linux.h
- event_solaris.c
- event_solaris.h
- func.c
- func.h
- http.c
- http.h
- httplistener.c
- httplistener.h
- httpparser.c
- httpparser.h
- httprequest.c
- httprequest.h
- keyfile_auth.c
- keyfile_auth.h
- ldap_auth.c
- ldap_auth.h
- ldap_resource.c
- ldap_resource.h
- log.c
- log.h
- main.c
- netsite.h
- objs.mk
- protocol.c
- protocol.h
- request.c
- request.h
- resourcepool.c
- resourcepool.h
- session.c
- session.h
- sessionhandler.c
- sessionhandler.h
- srvctrl.c
- srvctrl.h
- threadpools.c
- threadpools.h
- vfs.c
- vfs.h
- vserver.c
- vserver.h
- webserver.c
- webserver.h
- websocket.c
- websocket.h
- ws-fn.c
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2013 Olaf Wintermann. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "error.h"
30
31 #include <cx/string.h>
32 #include "../util/pblock.h"
33 #include "../util/strbuf.h"
34
35 // macro for creating an error string (ucx cxmutstr)
36 #define ERRMSG(s) { s, sizeof(s)-1 }
37
38 static cxmutstr error_400 = ERRMSG("<html><body>bad request</body></html>");
39 static cxmutstr error_403 = ERRMSG("<html><body>forbidden</body></html>");
40 static cxmutstr error_404 = ERRMSG("<html><body>not found</body></html>");
41 static cxmutstr error_500 = ERRMSG("<html><body>server error</body></html>");
42 static cxmutstr error_503 = ERRMSG("<html><body>service unavailable</body></html>");
43
44 static cxmutstr error_std = ERRMSG("<html><body>error</body></html>");
45
46 int nsapi_error_request(Session *sn, Request *rq) {
47 short status = rq->status_num;
48 cxmutstr msg;
49 if(status <= 0) {
50 status = 500;
51 msg = error_500;
52 } else if(status < 400) {
53 msg.ptr = NULL;
54 msg.length = 0;
55 } else {
56 switch(status) {
57 default: msg = error_std;
58 case 403: {
59 msg = error_403;
60 break;
61 }
62 case 404: {
63 msg = error_404;
64 break;
65 }
66 case 500: {
67 msg = error_500;
68 break;
69 }
70 }
71 }
72
73 pblock_removekey(pb_key_content_type, rq->srvhdrs);
74 pblock_removekey(pb_key_content_length, rq->srvhdrs);
75
76 pblock_kninsert(pb_key_content_length, msg.length, rq->srvhdrs);
77 pblock_nvinsert("content-type", "text/html", rq->srvhdrs);
78 protocol_status(sn, rq, status, NULL);
79 http_start_response(sn, rq);
80
81 if(msg.length > 0) {
82 net_write(sn->csd, msg.ptr, msg.length);
83 }
84
85 return REQ_PROCEED;
86 }
87
88 void fatal_error(HTTPRequest *req, int status) {
89 cxmutstr msg = error_500;
90 char *statusmsg = "Internal Server Error";
91 switch(status) {
92 case 400: {
93 msg = error_400;
94 statusmsg = "Bad request";
95 break;
96 }
97 case 500: {
98 msg = error_500;
99 statusmsg = "Internal Server Error";
100 break;
101 }
102 case 503: {
103 msg = error_503;
104 statusmsg = "Service Unavailable";
105 break;
106 }
107 }
108
109 char buf[512];
110 int len = snprintf(buf, 512, "HTTP/1.1 %d %s\r\nServer: webserver\r\nContent-type: text/html\r\nContent-length: %zd\r\n\r\n", status, statusmsg, msg.length);
111
112 // set socket blocking
113 int flags;
114 if (-1 == (flags = fcntl(req->connection->fd, F_GETFL, 0))) {
115 flags = 0;
116 }
117 if (fcntl(req->connection->fd, F_SETFL, flags & ~O_NONBLOCK) != 0) {
118 // error
119 }
120
121 req->connection->write(req->connection, buf, len);
122 req->connection->write(req->connection, msg.ptr, msg.length);
123 }
124