2 * Copyright (c) 2020 Omar Polo <op@omarpolo.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <arpa/inet.h>
21 #include <netinet/in.h>
22 #include <sys/socket.h>
35 #define GEMINI_URL_LEN (1024+3) /* URL max len + \r\n + \0 */
37 /* large enough to hold a copy of a gemini URL and still have extra room */
41 #define TEMP_FAILURE 40
43 #define PROXY_REFUSED 53
44 #define BAD_REQUEST 59
50 #define LOGE(c, fmt, ...) logs(LOG_ERR, c, fmt, __VA_ARGS__)
51 #define LOGW(c, fmt, ...) logs(LOG_WARNING, c, fmt, __VA_ARGS__)
52 #define LOGN(c, fmt, ...) logs(LOG_NOTICE, c, fmt, __VA_ARGS__)
53 #define LOGI(c, fmt, ...) logs(LOG_INFO, c, fmt, __VA_ARGS__)
54 #define LOGD(c, fmt, ...) logs(LOG_DEBUG, c, fmt, __VA_ARGS__)
65 extern struct vhost hosts[HOSTSLEN];
74 extern struct conf conf;
90 int fd, waiting_on_child;
92 char sbuf[1024]; /* static buffer */
93 void *buf, *i; /* mmap buffer */
94 ssize_t len, off; /* mmap/static buffer */
96 struct sockaddr_storage addr;
97 struct vhost *host; /* host she's talking to */
125 __attribute__((format (printf, 1, 2)))
126 __attribute__((__noreturn__))
127 void fatal(const char*, ...);
129 __attribute__((format (printf, 3, 4)))
130 void logs(int, struct client*, const char*, ...);
132 void sig_handler(int);
133 int starts_with(const char*, const char*);
134 ssize_t filesize(int);
135 char *absolutify_path(const char*);
136 void yyerror(const char*);
137 int parse_portno(const char*);
138 void parse_conf(const char*);
139 void load_vhosts(struct tls_config*);
142 void usage(const char*);
144 /* provided by lex/yacc */
147 extern int yyparse(void);
148 extern int yylex(void);
151 void init_mime(void);
152 void add_mime(const char*, const char*);
153 void load_default_mime(void);
154 const char *mime(const char*);
157 int check_path(struct client*, const char*, int*);
158 int open_file(char*, char*, struct pollfd*, struct client*);
159 int check_for_cgi(char *, char*, struct pollfd*, struct client*);
160 void mark_nonblock(int);
161 void handle_handshake(struct pollfd*, struct client*);
162 void handle_open_conn(struct pollfd*, struct client*);
163 int start_reply(struct pollfd*, struct client*, int, const char*);
164 int start_cgi(const char*, const char*, const char*, struct pollfd*, struct client*);
165 void send_file(char*, char*, struct pollfd*, struct client*);
166 void send_dir(char*, struct pollfd*, struct client*);
167 void cgi_poll_on_child(struct pollfd*, struct client*);
168 void cgi_poll_on_client(struct pollfd*, struct client*);
169 void handle_cgi(struct pollfd*, struct client*);
170 void goodbye(struct pollfd*, struct client*);
171 void do_accept(int, struct tls*, struct pollfd*, struct client*);
172 void handle(struct pollfd*, struct client*);
173 void loop(struct tls*, int, int);
176 int send_string(int, const char*);
177 int recv_string(int, char**);
178 int send_vhost(int, struct vhost*);
179 int recv_vhost(int, struct vhost**);
180 int send_fd(int, int);
182 int executor_main(int);
188 int valid_multibyte_utf8(struct parser*);
191 int parse_iri(char*, struct iri*, const char**);
192 int trim_req_iri(char*);