mirror of
https://github.com/omar-polo/gmid.git
synced 2024-09-11 13:38:34 +02:00
* gmid.c (main): changed behaviour: daemon off by default (main): changed -c in -C (cert option) (main): changed -k in -K (key option, for consistency with -C) (main): added -c to load a configuration (main): certs, key and doc (-C -K and -d) doesn't have a default value anymore (handle_handshake): add vhosts support
169 lines
3.9 KiB
C
169 lines
3.9 KiB
C
/*
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* Copyright (c) 2020 Omar Polo <op@omarpolo.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef GMID_H
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#define GMID_H
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <poll.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <syslog.h>
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#include <tls.h>
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#include <unistd.h>
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#ifndef __OpenBSD__
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# define pledge(a, b) 0
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# define unveil(a, b) 0
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#endif
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#ifndef INFTIM
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# define INFTIM -1
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#endif
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#define GEMINI_URL_LEN (1024+3) /* URL max len + \r\n + \0 */
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/* large enough to hold a copy of a gemini URL and still have extra room */
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#define PATHBUF 2048
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#define SUCCESS 20
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#define TEMP_FAILURE 40
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#define NOT_FOUND 51
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#define PROXY_REFUSED 53
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#define BAD_REQUEST 59
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#define MAX_USERS 64
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#define HOSTSLEN 64
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struct vhost {
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const char *domain;
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const char *cert;
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const char *key;
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const char *dir;
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const char *cgi;
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int dirfd;
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};
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extern struct vhost hosts[HOSTSLEN];
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struct conf {
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int foreground;
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int port;
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int ipv6;
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};
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extern struct conf conf;
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enum {
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S_HANDSHAKE,
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S_OPEN,
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S_INITIALIZING,
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S_SENDING,
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S_CLOSING,
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};
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struct client {
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struct tls *ctx;
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int state;
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int code;
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const char *meta;
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int fd, waiting_on_child;
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pid_t child;
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char sbuf[1024]; /* static buffer */
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void *buf, *i; /* mmap buffer */
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ssize_t len, off; /* mmap/static buffer */
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int af;
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struct sockaddr_storage addr;
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struct vhost *host; /* host he's talking to */
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};
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struct iri {
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char *schema;
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char *host;
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char *port;
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uint16_t port_no;
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char *path;
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char *query;
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char *fragment;
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};
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struct parser {
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char *iri;
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struct iri *parsed;
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const char *err;
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};
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enum {
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FILE_EXISTS,
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FILE_EXECUTABLE,
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FILE_DIRECTORY,
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FILE_MISSING,
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};
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/* gmid.c */
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void sig_handler(int);
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int starts_with(const char*, const char*);
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int start_reply(struct pollfd*, struct client*, int, const char*);
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ssize_t filesize(int);
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const char *path_ext(const char*);
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const char *mime(const char*);
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int check_path(struct client*, const char*, int*);
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int check_for_cgi(char *, char*, struct pollfd*, struct client*);
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int open_file(char*, char*, struct pollfd*, struct client*);
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int start_cgi(const char*, const char*, const char*, struct pollfd*, struct client*);
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void cgi_poll_on_child(struct pollfd*, struct client*);
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void cgi_poll_on_client(struct pollfd*, struct client*);
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void handle_cgi(struct pollfd*, struct client*);
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void send_file(char*, char*, struct pollfd*, struct client*);
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void send_dir(char*, struct pollfd*, struct client*);
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void handle_handshake(struct pollfd*, struct client*);
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void handle_open_conn(struct pollfd*, struct client*);
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void handle(struct pollfd*, struct client*);
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void mark_nonblock(int);
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int make_soket(int);
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void do_accept(int, struct tls*, struct pollfd*, struct client*);
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void goodbye(struct pollfd*, struct client*);
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void loop(struct tls*, int, int);
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char *absolutify_path(const char*);
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void yyerror(const char*);
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int parse_portno(const char*);
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void parse_conf(const char*);
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void load_vhosts(struct tls_config*);
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void sandbox();
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void usage(const char*);
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extern FILE *yyin;
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extern int yylineno;
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extern int yyparse(void);
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extern int yylex(void);
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/* utf8.c */
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int valid_multibyte_utf8(struct parser*);
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/* iri.c */
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int parse_iri(char*, struct iri*, const char**);
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int trim_req_iri(char*);
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#endif
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