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 */
124 __attribute__ ((format (printf, 3, 4))) void logs(int, struct client*, const char*, ...);
126 void sig_handler(int);
127 int starts_with(const char*, const char*);
129 int start_reply(struct pollfd*, struct client*, int, const char*);
130 ssize_t filesize(int);
131 const char *path_ext(const char*);
132 const char *mime(const char*);
133 int check_path(struct client*, const char*, int*);
134 int open_file(char*, char*, struct pollfd*, struct client*);
135 void send_file(char*, char*, struct pollfd*, struct client*);
136 void send_dir(char*, struct pollfd*, struct client*);
137 void handle_handshake(struct pollfd*, struct client*);
138 void handle_open_conn(struct pollfd*, struct client*);
139 void handle(struct pollfd*, struct client*);
141 void mark_nonblock(int);
143 void do_accept(int, struct tls*, struct pollfd*, struct client*);
144 void goodbye(struct pollfd*, struct client*);
145 void loop(struct tls*, int, int);
147 char *absolutify_path(const char*);
148 void yyerror(const char*);
149 int parse_portno(const char*);
150 void parse_conf(const char*);
151 void load_vhosts(struct tls_config*);
155 void usage(const char*);
157 /* provided by lex/yacc */
160 extern int yyparse(void);
161 extern int yylex(void);
164 int send_string(int, const char*);
165 int recv_string(int, char**);
166 int send_vhost(int, struct vhost*);
167 int recv_vhost(int, struct vhost**);
168 int send_fd(int, int);
170 int executor_main(int);
173 int check_for_cgi(char *, char*, struct pollfd*, struct client*);
174 int start_cgi(const char*, const char*, const char*, struct pollfd*, struct client*);
175 void cgi_poll_on_child(struct pollfd*, struct client*);
176 void cgi_poll_on_client(struct pollfd*, struct client*);
177 void handle_cgi(struct pollfd*, struct client*);
183 int valid_multibyte_utf8(struct parser*);
186 int parse_iri(char*, struct iri*, const char**);
187 int trim_req_iri(char*);