1 /* 2 * Copyright (c) 2000-2007 Niels Provos <provos (at) citi.umich.edu> 3 * Copyright (c) 2007-2012 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_INCLUDED_ 28 #define EVENT2_HTTP_STRUCT_H_INCLUDED_ 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 * Callback added for forked-daapd so they can collect ICY 126 * (shoutcast) metadata from the http header. If return 127 * int is negative the connection will be closed. 128 */ 129 int (*header_cb)(struct evhttp_request *, void *); 130 131 /* 132 * Error callback - called when error is occured. 133 * @see evhttp_request_error for error types. 134 * 135 * @see evhttp_request_set_error_cb() 136 */ 137 void (*error_cb)(enum evhttp_request_error, void *); 138 139 /* 140 * Send complete callback - called when the request is actually 141 * sent and completed. 142 */ 143 void (*on_complete_cb)(struct evhttp_request *, void *); 144 void *on_complete_cb_arg; 145 }; 146 147 #ifdef __cplusplus 148 } 149 #endif 150 151 #endif /* EVENT2_HTTP_STRUCT_H_INCLUDED_ */ 152 153
