mirror of
https://github.com/omar-polo/gmid.git
synced 2024-09-27 21:11:51 +02:00
155 lines
3.7 KiB
C
155 lines
3.7 KiB
C
#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 <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 BAD_REQUEST 59
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#ifndef MAX_USERS
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#define MAX_USERS 64
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#endif
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#define SAFE_SETENV(var, val) do { \
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const char *_tmp = (val); \
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if (_tmp == NULL) \
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_tmp = ""; \
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setenv((var), _tmp, 1); \
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} while(0)
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#define LOG(priority, c, fmt, ...) \
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do { \
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char buf[INET_ADDRSTRLEN]; \
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if (inet_ntop((c)->af, &(c)->addr, \
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buf, sizeof(buf)) == NULL) \
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FATAL("inet_ntop: %s", strerror(errno)); \
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if (foreground) \
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fprintf(stderr, \
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"%s " fmt "\n", buf, __VA_ARGS__); \
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else \
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syslog((priority) | LOG_DAEMON, \
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"%s " fmt, buf, __VA_ARGS__); \
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} while (0)
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#define LOGE(c, fmt, ...) LOG(LOG_ERR, c, fmt, __VA_ARGS__)
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#define LOGN(c, fmt, ...) LOG(LOG_NOTICE, c, fmt, __VA_ARGS__)
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#define LOGI(c, fmt, ...) LOG(LOG_INFO, c, fmt, __VA_ARGS__)
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#define LOGD(c, fmt, ...) LOG(LOG_DEBUG, c, fmt, __VA_ARGS__)
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#define FATAL(fmt, ...) \
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do { \
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if (foreground) \
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fprintf(stderr, fmt "\n", __VA_ARGS__); \
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else \
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syslog(LOG_DAEMON | LOG_CRIT, \
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fmt, __VA_ARGS__); \
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exit(1); \
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} while (0)
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enum {
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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 in_addr addr;
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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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struct etm { /* file extension to mime */
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const char *mime;
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const char *ext;
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} filetypes[] = {
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{"application/pdf", "pdf"},
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{"image/gif", "gif"},
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{"image/jpeg", "jpg"},
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{"image/jpeg", "jpeg"},
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{"image/png", "png"},
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{"image/svg+xml", "svg"},
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{"text/gemini", "gemini"},
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{"text/gemini", "gmi"},
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{"text/markdown", "markdown"},
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{"text/markdown", "md"},
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{"text/plain", "txt"},
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{"text/xml", "xml"},
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{NULL, NULL}
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};
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void siginfo_handler(int);
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int starts_with(const char*, const char*);
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char *url_after_proto(char*);
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char *url_start_of_request(char*);
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int url_trim(struct client*, char*);
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char *adjust_path(char*);
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ssize_t filesize(int);
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int start_reply(struct pollfd*, struct client*, int, const char*);
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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_setpoll_on_child(struct pollfd*, struct client*);
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void cgi_setpoll_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(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);
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void usage(const char*);
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#endif
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