mirror of
https://github.com/omar-polo/gmid.git
synced 2024-09-30 06:21:19 +02:00
175 lines
4.3 KiB
C
175 lines
4.3 KiB
C
/*
|
|
* Copyright (c) 2020 Omar Polo <op@omarpolo.com>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifndef GMID_H
|
|
#define GMID_H
|
|
|
|
#include <arpa/inet.h>
|
|
#include <netinet/in.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <poll.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <syslog.h>
|
|
#include <tls.h>
|
|
#include <unistd.h>
|
|
|
|
#ifndef INFTIM
|
|
# define INFTIM -1
|
|
#endif
|
|
|
|
#define GEMINI_URL_LEN (1024+3) /* URL max len + \r\n + \0 */
|
|
|
|
/* large enough to hold a copy of a gemini URL and still have extra room */
|
|
#define PATHBUF 2048
|
|
|
|
#define SUCCESS 20
|
|
#define TEMP_FAILURE 40
|
|
#define NOT_FOUND 51
|
|
#define PROXY_REFUSED 53
|
|
#define BAD_REQUEST 59
|
|
|
|
#define MAX_USERS 64
|
|
|
|
#define HOSTSLEN 64
|
|
|
|
#define LOGE(c, fmt, ...) logs(LOG_ERR, c, fmt, __VA_ARGS__)
|
|
#define LOGW(c, fmt, ...) logs(LOG_WARNING, c, fmt, __VA_ARGS__)
|
|
#define LOGN(c, fmt, ...) logs(LOG_NOTICE, c, fmt, __VA_ARGS__)
|
|
#define LOGI(c, fmt, ...) logs(LOG_INFO, c, fmt, __VA_ARGS__)
|
|
#define LOGD(c, fmt, ...) logs(LOG_DEBUG, c, fmt, __VA_ARGS__)
|
|
|
|
struct vhost {
|
|
const char *domain;
|
|
const char *cert;
|
|
const char *key;
|
|
const char *dir;
|
|
const char *cgi;
|
|
int dirfd;
|
|
};
|
|
|
|
extern struct vhost hosts[HOSTSLEN];
|
|
|
|
struct conf {
|
|
int foreground;
|
|
int port;
|
|
int ipv6;
|
|
};
|
|
|
|
extern struct conf conf;
|
|
|
|
enum {
|
|
S_HANDSHAKE,
|
|
S_OPEN,
|
|
S_INITIALIZING,
|
|
S_SENDING,
|
|
S_CLOSING,
|
|
};
|
|
|
|
struct client {
|
|
struct tls *ctx;
|
|
int state;
|
|
int code;
|
|
const char *meta;
|
|
int fd, waiting_on_child;
|
|
pid_t child;
|
|
char sbuf[1024]; /* static buffer */
|
|
void *buf, *i; /* mmap buffer */
|
|
ssize_t len, off; /* mmap/static buffer */
|
|
int af;
|
|
struct sockaddr_storage addr;
|
|
struct vhost *host; /* host she's talking to */
|
|
};
|
|
|
|
struct iri {
|
|
char *schema;
|
|
char *host;
|
|
char *port;
|
|
uint16_t port_no;
|
|
char *path;
|
|
char *query;
|
|
char *fragment;
|
|
};
|
|
|
|
struct parser {
|
|
char *iri;
|
|
struct iri *parsed;
|
|
const char *err;
|
|
};
|
|
|
|
enum {
|
|
FILE_EXISTS,
|
|
FILE_EXECUTABLE,
|
|
FILE_DIRECTORY,
|
|
FILE_MISSING,
|
|
};
|
|
|
|
/* gmid.c */
|
|
__attribute__ ((format (printf, 3, 4))) void logs(int, struct client*, const char*, ...);
|
|
|
|
void sig_handler(int);
|
|
int starts_with(const char*, const char*);
|
|
|
|
int start_reply(struct pollfd*, struct client*, int, const char*);
|
|
ssize_t filesize(int);
|
|
const char *path_ext(const char*);
|
|
const char *mime(const char*);
|
|
int check_path(struct client*, const char*, int*);
|
|
int check_for_cgi(char *, char*, struct pollfd*, struct client*);
|
|
int open_file(char*, char*, struct pollfd*, struct client*);
|
|
int start_cgi(const char*, const char*, const char*, struct pollfd*, struct client*);
|
|
void cgi_poll_on_child(struct pollfd*, struct client*);
|
|
void cgi_poll_on_client(struct pollfd*, struct client*);
|
|
void handle_cgi(struct pollfd*, struct client*);
|
|
void send_file(char*, char*, struct pollfd*, struct client*);
|
|
void send_dir(char*, struct pollfd*, struct client*);
|
|
void handle_handshake(struct pollfd*, struct client*);
|
|
void handle_open_conn(struct pollfd*, struct client*);
|
|
void handle(struct pollfd*, struct client*);
|
|
|
|
void mark_nonblock(int);
|
|
int make_soket(int);
|
|
void do_accept(int, struct tls*, struct pollfd*, struct client*);
|
|
void goodbye(struct pollfd*, struct client*);
|
|
void loop(struct tls*, int, int);
|
|
|
|
char *absolutify_path(const char*);
|
|
void yyerror(const char*);
|
|
int parse_portno(const char*);
|
|
void parse_conf(const char*);
|
|
void load_vhosts(struct tls_config*);
|
|
|
|
void usage(const char*);
|
|
|
|
/* provided by lex/yacc */
|
|
extern FILE *yyin;
|
|
extern int yylineno;
|
|
extern int yyparse(void);
|
|
extern int yylex(void);
|
|
|
|
/* sandbox.c */
|
|
void sandbox();
|
|
|
|
/* utf8.c */
|
|
int valid_multibyte_utf8(struct parser*);
|
|
|
|
/* iri.c */
|
|
int parse_iri(char*, struct iri*, const char**);
|
|
int trim_req_iri(char*);
|
|
|
|
#endif
|