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http_struct.h
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1 /*
2 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
3 * Copyright (c) 2007-2010 Niels Provos and Nick Mathewson
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27 #ifndef _EVENT2_HTTP_STRUCT_H_
28 #define _EVENT2_HTTP_STRUCT_H_
29
30 /** @file event2/http_struct.h
31
32 Data structures for http. Using these structures may hurt forward
33 compatibility with later versions of Libevent: be careful!
34
35 */
36
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40
41 #include <event2/event-config.h>
42 #ifdef _EVENT_HAVE_SYS_TYPES_H
43 #include <sys/types.h>
44 #endif
45 #ifdef _EVENT_HAVE_SYS_TIME_H
46 #include <sys/time.h>
47 #endif
48
49 /* For int types. */
50 #include <event2/util.h>
51
52 /**
53 * the request structure that a server receives.
54 * WARNING: expect this structure to change. I will try to provide
55 * reasonable accessors.
56 */
57 struct evhttp_request {
58 #if defined(TAILQ_ENTRY)
59 TAILQ_ENTRY(evhttp_request) next;
60 #else
61 struct {
62 struct evhttp_request *tqe_next;
63 struct evhttp_request **tqe_prev;
64 } next;
65 #endif
66
67 /* the connection object that this request belongs to */
68 struct evhttp_connection *evcon;
69 int flags;
70 /** The request obj owns the evhttp connection and needs to free it */
71 #define EVHTTP_REQ_OWN_CONNECTION 0x0001
72 /** Request was made via a proxy */
73 #define EVHTTP_PROXY_REQUEST 0x0002
74 /** The request object is owned by the user; the user must free it */
75 #define EVHTTP_USER_OWNED 0x0004
76 /** The request will be used again upstack; freeing must be deferred */
77 #define EVHTTP_REQ_DEFER_FREE 0x0008
78 /** The request should be freed upstack */
79 #define EVHTTP_REQ_NEEDS_FREE 0x0010
80
81 struct evkeyvalq *input_headers;
82 struct evkeyvalq *output_headers;
83
84 /* address of the remote host and the port connection came from */
85 char *remote_host;
86 ev_uint16_t remote_port;
87
88 /* cache of the hostname for evhttp_request_get_host */
89 char *host_cache;
90
91 enum evhttp_request_kind kind;
92 enum evhttp_cmd_type type;
93
94 size_t headers_size;
95 size_t body_size;
96
97 char *uri; /* uri after HTTP request was parsed */
98 struct evhttp_uri *uri_elems; /* uri elements */
99
100 char major; /* HTTP Major number */
101 char minor; /* HTTP Minor number */
102
103 int response_code; /* HTTP Response code */
104 char *response_code_line; /* Readable response */
105
106 struct evbuffer *input_buffer; /* read data */
107 ev_int64_t ntoread;
108 unsigned chunked:1, /* a chunked request */
109 userdone:1; /* the user has sent all data */
110
111 struct evbuffer *output_buffer; /* outgoing post or data */
112
113 /* Callback */
114 void (*cb)(struct evhttp_request *, void *);
115 void *cb_arg;
116
117 /*
118 * Chunked data callback - call for each completed chunk if
119 * specified. If not specified, all the data is delivered via
120 * the regular callback.
121 */
122 void (*chunk_cb)(struct evhttp_request *, void *);
123 };
124
125 #ifdef __cplusplus
126 }
127 #endif
128
129 #endif /* _EVENT2_HTTP_STRUCT_H_ */
130
evhttp_request_kind
evhttp_request_kind
a request object can represent either a request or a reply
Definition: http.h:390
evbuffer
Definition: evbuffer-internal.h:78
evhttp_connection
Definition: http-internal.h:62
util.h
Common convenience functions for cross-platform portability and related socket manipulations.
evhttp_uri
Definition: http.c:3893
evhttp_cmd_type
evhttp_cmd_type
The different request types supported by evhttp.
Definition: http.h:377
evhttp_request
the request structure that a server receives.
Definition: http_struct.h:57