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/*
* Copyright 2001 Niels Provos <provos@citi.umich.edu>
* All rights reserved.
*
* This header file contains definitions for dealing with HTTP requests
* that are internal to libevent. As user of the library, you should not
* need to know about these.
*/
#ifndef _HTTP_H_
#define _HTTP_H_
#define HTTP_CONNECT_TIMEOUT 45
#define HTTP_WRITE_TIMEOUT 50
#define HTTP_READ_TIMEOUT 50
#define HTTP_PREFIX "http://"
#define HTTP_DEFAULTPORT 80
enum evhttp_connection_error {
EVCON_HTTP_TIMEOUT,
EVCON_HTTP_EOF,
EVCON_HTTP_INVALID_HEADER
};
struct evbuffer;
struct addrinfo;
struct evhttp_request;
/* A stupid connection object - maybe make this a bufferevent later */
enum evhttp_connection_state {
EVCON_DISCONNECTED, /* not currently connected not trying either */
EVCON_CONNECTING, /* tries to currently connect */
EVCON_CONNECTED /* connection is established */
};
struct evhttp_connection {
/* we use tailq only if they were created for an http server */
TAILQ_ENTRY(evhttp_connection) next;
int fd;
struct event ev;
struct evbuffer *input_buffer;
struct evbuffer *output_buffer;
char *address;
u_short port;
int flags;
#define EVHTTP_CON_INCOMING 0x0001 /* only one request on it ever */
#define EVHTTP_CON_OUTGOING 0x0002 /* multiple requests possible */
enum evhttp_connection_state state;
/* for server connections, the http server they are connected with */
struct evhttp *http_server;
TAILQ_HEAD(evcon_requestq, evhttp_request) requests;
void (*cb)(struct evhttp_connection *, void *);
void *cb_arg;
};
struct evhttp_cb {
TAILQ_ENTRY(evhttp_cb) next;
char *what;
void (*cb)(struct evhttp_request *req, void *);
void *cbarg;
};
/* both the http server as well as the rpc system need to queue connections */
TAILQ_HEAD(evconq, evhttp_connection);
struct evhttp {
struct event bind_ev;
TAILQ_HEAD(httpcbq, evhttp_cb) callbacks;
struct evconq connections;
void (*gencb)(struct evhttp_request *req, void *);
void *gencbarg;
};
/* resets the connection; can be reused for more requests */
void evhttp_connection_reset(struct evhttp_connection *);
/* connects if necessary */
int evhttp_connection_connect(struct evhttp_connection *);
/* notifies the current request that it failed; resets connection */
void evhttp_connection_fail(struct evhttp_connection *,
enum evhttp_connection_error error);
void evhttp_get_request(struct evhttp *, int, struct sockaddr *, socklen_t);
int evhttp_hostportfile(char *, char **, u_short *, char **);
int evhttp_parse_lines(struct evhttp_request *, struct evbuffer*);
void evhttp_start_read(struct evhttp_connection *);
void evhttp_read_header(int, short, void *);
void evhttp_make_header(struct evhttp_connection *, struct evhttp_request *);
void evhttp_write_buffer(struct evhttp_connection *,
void (*)(struct evhttp_connection *, void *), void *);
/* response sending HTML the data in the buffer */
void evhttp_response_code(struct evhttp_request *, int, const char *);
void evhttp_send_page(struct evhttp_request *, struct evbuffer *);
#endif /* _HTTP_H */
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