2 d5aba4c7 2020-12-24 op * Copyright (c) 2020 Omar Polo <op@omarpolo.com>
4 d5aba4c7 2020-12-24 op * Permission to use, copy, modify, and distribute this software for any
5 d5aba4c7 2020-12-24 op * purpose with or without fee is hereby granted, provided that the above
6 d5aba4c7 2020-12-24 op * copyright notice and this permission notice appear in all copies.
8 d5aba4c7 2020-12-24 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 d5aba4c7 2020-12-24 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 d5aba4c7 2020-12-24 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 d5aba4c7 2020-12-24 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 d5aba4c7 2020-12-24 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 d5aba4c7 2020-12-24 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 d5aba4c7 2020-12-24 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 488f059a 2020-12-24 op #ifndef GMID_H
18 488f059a 2020-12-24 op #define GMID_H
20 488f059a 2020-12-24 op #include <arpa/inet.h>
21 488f059a 2020-12-24 op #include <netinet/in.h>
22 28778244 2021-01-11 op #include <sys/socket.h>
24 488f059a 2020-12-24 op #include <poll.h>
25 488f059a 2020-12-24 op #include <stdio.h>
26 488f059a 2020-12-24 op #include <stdlib.h>
27 488f059a 2020-12-24 op #include <syslog.h>
28 488f059a 2020-12-24 op #include <tls.h>
29 488f059a 2020-12-24 op #include <unistd.h>
31 488f059a 2020-12-24 op #ifndef INFTIM
32 488f059a 2020-12-24 op # define INFTIM -1
35 488f059a 2020-12-24 op #define GEMINI_URL_LEN (1024+3) /* URL max len + \r\n + \0 */
37 488f059a 2020-12-24 op /* large enough to hold a copy of a gemini URL and still have extra room */
38 488f059a 2020-12-24 op #define PATHBUF 2048
40 488f059a 2020-12-24 op #define SUCCESS 20
41 488f059a 2020-12-24 op #define TEMP_FAILURE 40
42 488f059a 2020-12-24 op #define NOT_FOUND 51
43 7b1d9790 2021-01-11 op #define PROXY_REFUSED 53
44 488f059a 2020-12-24 op #define BAD_REQUEST 59
46 488f059a 2020-12-24 op #define MAX_USERS 64
48 15902770 2021-01-15 op #define HOSTSLEN 64
50 dafb57b8 2021-01-15 op #define LOGE(c, fmt, ...) logs(LOG_ERR, c, fmt, __VA_ARGS__)
51 dafb57b8 2021-01-15 op #define LOGW(c, fmt, ...) logs(LOG_WARNING, c, fmt, __VA_ARGS__)
52 dafb57b8 2021-01-15 op #define LOGN(c, fmt, ...) logs(LOG_NOTICE, c, fmt, __VA_ARGS__)
53 dafb57b8 2021-01-15 op #define LOGI(c, fmt, ...) logs(LOG_INFO, c, fmt, __VA_ARGS__)
54 dafb57b8 2021-01-15 op #define LOGD(c, fmt, ...) logs(LOG_DEBUG, c, fmt, __VA_ARGS__)
56 15902770 2021-01-15 op struct vhost {
57 15902770 2021-01-15 op const char *domain;
58 15902770 2021-01-15 op const char *cert;
59 15902770 2021-01-15 op const char *key;
60 15902770 2021-01-15 op const char *dir;
61 15902770 2021-01-15 op const char *cgi;
65 15902770 2021-01-15 op extern struct vhost hosts[HOSTSLEN];
68 15902770 2021-01-15 op int foreground;
71 5bc3c98e 2021-01-15 op uint32_t protos;
74 15902770 2021-01-15 op extern struct conf conf;
75 881a9dd9 2021-01-16 op extern int exfd;
80 488f059a 2020-12-24 op S_INITIALIZING,
85 488f059a 2020-12-24 op struct client {
86 488f059a 2020-12-24 op struct tls *ctx;
89 488f059a 2020-12-24 op const char *meta;
90 488f059a 2020-12-24 op int fd, waiting_on_child;
92 488f059a 2020-12-24 op char sbuf[1024]; /* static buffer */
93 488f059a 2020-12-24 op void *buf, *i; /* mmap buffer */
94 488f059a 2020-12-24 op ssize_t len, off; /* mmap/static buffer */
96 709d6e5e 2021-01-10 op struct sockaddr_storage addr;
97 f7b816dc 2021-01-15 op struct vhost *host; /* host she's talking to */
101 33d32d1f 2020-12-25 op char *schema;
104 33d32d1f 2020-12-25 op uint16_t port_no;
107 33d32d1f 2020-12-25 op char *fragment;
110 ef04b551 2021-01-09 op struct parser {
112 3c1cf9d0 2021-01-11 op struct iri *parsed;
113 ef04b551 2021-01-09 op const char *err;
118 488f059a 2020-12-24 op FILE_EXECUTABLE,
119 488f059a 2020-12-24 op FILE_DIRECTORY,
120 488f059a 2020-12-24 op FILE_MISSING,
124 dafb57b8 2021-01-15 op __attribute__ ((format (printf, 3, 4))) void logs(int, struct client*, const char*, ...);
126 4a28dd01 2020-12-28 op void sig_handler(int);
127 488f059a 2020-12-24 op int starts_with(const char*, const char*);
129 488f059a 2020-12-24 op int start_reply(struct pollfd*, struct client*, int, const char*);
130 3d9a1c73 2020-12-28 op ssize_t filesize(int);
131 488f059a 2020-12-24 op const char *path_ext(const char*);
132 488f059a 2020-12-24 op const char *mime(const char*);
133 488f059a 2020-12-24 op int check_path(struct client*, const char*, int*);
134 488f059a 2020-12-24 op int open_file(char*, char*, struct pollfd*, struct client*);
135 488f059a 2020-12-24 op void send_file(char*, char*, struct pollfd*, struct client*);
136 488f059a 2020-12-24 op void send_dir(char*, struct pollfd*, struct client*);
137 9862b637 2021-01-13 op void handle_handshake(struct pollfd*, struct client*);
138 9862b637 2021-01-13 op void handle_open_conn(struct pollfd*, struct client*);
139 488f059a 2020-12-24 op void handle(struct pollfd*, struct client*);
141 488f059a 2020-12-24 op void mark_nonblock(int);
142 488f059a 2020-12-24 op int make_soket(int);
143 488f059a 2020-12-24 op void do_accept(int, struct tls*, struct pollfd*, struct client*);
144 488f059a 2020-12-24 op void goodbye(struct pollfd*, struct client*);
145 33756bd2 2021-01-10 op void loop(struct tls*, int, int);
147 15902770 2021-01-15 op char *absolutify_path(const char*);
148 15902770 2021-01-15 op void yyerror(const char*);
149 15902770 2021-01-15 op int parse_portno(const char*);
150 15902770 2021-01-15 op void parse_conf(const char*);
151 15902770 2021-01-15 op void load_vhosts(struct tls_config*);
153 881a9dd9 2021-01-16 op int listener_main();
155 488f059a 2020-12-24 op void usage(const char*);
157 f7b816dc 2021-01-15 op /* provided by lex/yacc */
158 15902770 2021-01-15 op extern FILE *yyin;
159 15902770 2021-01-15 op extern int yylineno;
160 15902770 2021-01-15 op extern int yyparse(void);
161 15902770 2021-01-15 op extern int yylex(void);
164 881a9dd9 2021-01-16 op int send_string(int, const char*);
165 881a9dd9 2021-01-16 op int recv_string(int, char**);
166 881a9dd9 2021-01-16 op int send_vhost(int, struct vhost*);
167 881a9dd9 2021-01-16 op int recv_vhost(int, struct vhost**);
168 881a9dd9 2021-01-16 op int send_fd(int, int);
169 881a9dd9 2021-01-16 op int recv_fd(int);
170 881a9dd9 2021-01-16 op int executor_main(int);
173 7edc455a 2021-01-15 op int check_for_cgi(char *, char*, struct pollfd*, struct client*);
174 7edc455a 2021-01-15 op int start_cgi(const char*, const char*, const char*, struct pollfd*, struct client*);
175 7edc455a 2021-01-15 op void cgi_poll_on_child(struct pollfd*, struct client*);
176 7edc455a 2021-01-15 op void cgi_poll_on_client(struct pollfd*, struct client*);
177 7edc455a 2021-01-15 op void handle_cgi(struct pollfd*, struct client*);
179 dafb57b8 2021-01-15 op /* sandbox.c */
180 dafb57b8 2021-01-15 op void sandbox();
183 ef04b551 2021-01-09 op int valid_multibyte_utf8(struct parser*);
186 3c1cf9d0 2021-01-11 op int parse_iri(char*, struct iri*, const char**);
187 3c1cf9d0 2021-01-11 op int trim_req_iri(char*);