suckless-quark/http.h
Laslo Hunhold 0823ba4c3e
Add logmsg() and refactor connection handling
Also use compound literals for immediate pointers we don't use later
(same as with setsockopt() in 32223c96bd).

Signed-off-by: Laslo Hunhold <dev@frign.de>
2020-08-29 13:02:51 +02:00

117 lines
2.5 KiB
C

/* See LICENSE file for copyright and license details. */
#ifndef HTTP_H
#define HTTP_H
#include <limits.h>
#include <sys/socket.h>
#include "util.h"
#define HEADER_MAX 4096
#define FIELD_MAX 200
enum req_field {
REQ_HOST,
REQ_RANGE,
REQ_IF_MODIFIED_SINCE,
NUM_REQ_FIELDS,
};
extern const char *req_field_str[];
enum req_method {
M_GET,
M_HEAD,
NUM_REQ_METHODS,
};
extern const char *req_method_str[];
struct request {
enum req_method method;
char uri[PATH_MAX];
char field[NUM_REQ_FIELDS][FIELD_MAX];
};
enum status {
S_OK = 200,
S_PARTIAL_CONTENT = 206,
S_MOVED_PERMANENTLY = 301,
S_NOT_MODIFIED = 304,
S_BAD_REQUEST = 400,
S_FORBIDDEN = 403,
S_NOT_FOUND = 404,
S_METHOD_NOT_ALLOWED = 405,
S_REQUEST_TIMEOUT = 408,
S_RANGE_NOT_SATISFIABLE = 416,
S_REQUEST_TOO_LARGE = 431,
S_INTERNAL_SERVER_ERROR = 500,
S_VERSION_NOT_SUPPORTED = 505,
};
extern const char *status_str[];
enum res_field {
RES_ACCEPT_RANGES,
RES_ALLOW,
RES_LOCATION,
RES_LAST_MODIFIED,
RES_CONTENT_LENGTH,
RES_CONTENT_RANGE,
RES_CONTENT_TYPE,
NUM_RES_FIELDS,
};
extern const char *res_field_str[];
enum res_type {
RESTYPE_ERROR,
RESTYPE_FILE,
RESTYPE_DIRLISTING,
NUM_RES_TYPES,
};
struct response {
enum res_type type;
enum status status;
char field[NUM_RES_FIELDS][FIELD_MAX];
char uri[PATH_MAX];
char path[PATH_MAX];
struct {
size_t lower;
size_t upper;
} file;
};
extern enum status (* const body_fct[])(int, const struct response *);
enum conn_state {
C_VACANT,
C_RECV_HEADER,
C_SEND_HEADER,
C_SEND_BODY,
NUM_CONN_STATES,
};
struct connection {
enum conn_state state;
int fd;
struct sockaddr_storage ia;
char header[HEADER_MAX]; /* general req/res-header buffer */
size_t off; /* general offset (header/file/dir) */
struct request req;
struct response res;
};
enum status http_send_header(int, const struct response *);
enum status http_send_status(int, enum status);
enum status http_recv_header(int, char *, size_t, size_t *);
enum status http_parse_header(const char *, struct request *);
void http_prepare_response(const struct request *, struct response *,
const struct server *);
void http_prepare_error_response(const struct request *,
struct response *, enum status);
enum status http_send_body(int, const struct response *,
const struct request *);
#endif /* HTTP_H */