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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
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 {
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;
TAILQ_HEAD(evcon_requestq, evhttp_request) requests;
void (*cb)(struct evhttp_connection *, void *);
void *cb_arg;
};
enum evhttp_request_kind { EVHTTP_REQUEST, EVHTTP_RESPONSE };
struct evhttp_request {
TAILQ_ENTRY(evhttp_request) next;
/* the connection object that this request belongs to */
struct evhttp_connection *evcon;
int flags;
#define EVHTTP_REQ_OWN_CONNECTION 0x0001
struct evkeyvalq *input_headers;
struct evkeyvalq *output_headers;
/* xxx: do we still need these? */
char *remote_host;
u_short remote_port;
enum evhttp_request_kind kind;
enum evhttp_cmd_type type;
char *uri; /* uri after HTTP request was parsed */
char major; /* HTTP Major number */
char minor; /* HTTP Minor number */
int got_firstline;
int response_code; /* HTTP Response code */
char *response_code_line; /* Readable response */
struct evbuffer *input_buffer; /* read data */
int ntoread;
struct evbuffer *output_buffer; /* outgoing post or data */
/* Callback */
void (*cb)(struct evhttp_request *, void *);
void *cb_arg;
};
struct evhttp_cb {
TAILQ_ENTRY(evhttp_cb) next;
char *what;
void (*cb)(struct evhttp_request *req, void *);
void *cbarg;
};
struct evhttp {
struct event bind_ev;
TAILQ_HEAD(httpcbq, evhttp_cb) callbacks;
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 *);
void evhttp_get_request(int, struct sockaddr *, socklen_t,
void (*)(struct evhttp_request *, void *), void *);
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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