dirl/http.h
Laslo Hunhold 65600ffe7a
Reduce global state by localizing the server-struct
The server-struct variable s was global, which made it readable and
modifiable from any point in the code. Making it a local variable in
main() instead and passing it as a pointer to constant memory to each
function needing it makes much more sense and allows the compiler to
warn us if we do try to modify it, which it wouldn't have before.

Signed-off-by: Laslo Hunhold <dev@frign.de>
2020-08-17 11:37:25 +02:00

77 lines
1.5 KiB
C

/* See LICENSE file for copyright and license details. */
#ifndef HTTP_H
#define HTTP_H
#include <limits.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 target[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[];
struct response {
enum status status;
char field[NUM_RES_FIELDS][FIELD_MAX];
};
enum status http_send_header(int, const struct response *);
enum status http_send_status(int, enum status);
int http_get_request(int, struct request *);
enum status http_send_response(int, const struct request *,
const struct server *);
#endif /* HTTP_H */