2 7e9b7812 2021-02-07 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 7e9b7812 2021-02-07 op * Permission to use, copy, modify, and distribute this software for any
5 7e9b7812 2021-02-07 op * purpose with or without fee is hereby granted, provided that the above
6 7e9b7812 2021-02-07 op * copyright notice and this permission notice appear in all copies.
8 7e9b7812 2021-02-07 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 7e9b7812 2021-02-07 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 7e9b7812 2021-02-07 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 7e9b7812 2021-02-07 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 7e9b7812 2021-02-07 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 7e9b7812 2021-02-07 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 7e9b7812 2021-02-07 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 52418c8d 2021-02-12 op #include "gmid.h"
19 d278a0c3 2021-02-23 op #include <sys/types.h>
20 d278a0c3 2021-02-23 op #include <sys/uio.h>
22 7e9b7812 2021-02-07 op #include <errno.h>
23 d278a0c3 2021-02-23 op #include <event.h>
24 d278a0c3 2021-02-23 op #include <imsg.h>
25 7e9b7812 2021-02-07 op #include <netdb.h>
26 7e9b7812 2021-02-07 op #include <stdarg.h>
27 7e9b7812 2021-02-07 op #include <stdio.h>
28 7e9b7812 2021-02-07 op #include <string.h>
29 7e9b7812 2021-02-07 op #include <syslog.h>
30 b3342582 2021-04-14 op #include <time.h>
32 bc99d868 2021-03-19 op static struct event imsgev;
34 bc99d868 2021-03-19 op static void handle_imsg_quit(struct imsgbuf*, struct imsg*, size_t);
35 bc99d868 2021-03-19 op static void handle_imsg_log(struct imsgbuf*, struct imsg*, size_t);
36 bc99d868 2021-03-19 op static void handle_dispatch_imsg(int, short, void*);
38 bc99d868 2021-03-19 op static imsg_handlerfn *handlers[] = {
39 bc99d868 2021-03-19 op [IMSG_QUIT] = handle_imsg_quit,
40 bc99d868 2021-03-19 op [IMSG_LOG] = handle_imsg_log,
43 b3342582 2021-04-14 op static inline void
44 b3342582 2021-04-14 op print_date(void)
46 b3342582 2021-04-14 op struct tm tminfo;
51 b3342582 2021-04-14 op strftime(buf, sizeof(buf), "%F %T",
52 b3342582 2021-04-14 op localtime_r(&t, &tminfo));
53 b3342582 2021-04-14 op fprintf(stderr, "[%s] ", buf);
57 7e9b7812 2021-02-07 op fatal(const char *fmt, ...)
61 7e9b7812 2021-02-07 op va_start(ap, fmt);
63 7e9b7812 2021-02-07 op if (conf.foreground) {
65 7e9b7812 2021-02-07 op vfprintf(stderr, fmt, ap);
66 7e9b7812 2021-02-07 op fprintf(stderr, "\n");
68 e6ca8eb1 2021-04-28 op vsyslog(LOG_DAEMON | LOG_ERR, fmt, ap);
74 7e9b7812 2021-02-07 op static inline int
75 7e9b7812 2021-02-07 op should_log(int priority)
77 7e9b7812 2021-02-07 op switch (priority) {
80 7e9b7812 2021-02-07 op case LOG_WARNING:
82 7e9b7812 2021-02-07 op case LOG_NOTICE:
83 7e9b7812 2021-02-07 op return conf.verbose >= 1;
84 7e9b7812 2021-02-07 op case LOG_INFO:
85 7e9b7812 2021-02-07 op return conf.verbose >= 2;
86 7e9b7812 2021-02-07 op case LOG_DEBUG:
87 7e9b7812 2021-02-07 op return conf.verbose >= 3;
93 d278a0c3 2021-02-23 op static inline void
94 42447f67 2021-04-28 op send_log(int priority, const char *msg, size_t len)
96 42447f67 2021-04-28 op imsg_compose(&logibuf, IMSG_LOG, priority, 0, -1, msg, len);
97 bc99d868 2021-03-19 op imsg_flush(&logibuf);
100 d278a0c3 2021-02-23 op static inline void
101 d278a0c3 2021-02-23 op vlog(int priority, struct client *c,
102 7e9b7812 2021-02-07 op const char *fmt, va_list ap)
104 7e9b7812 2021-02-07 op char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
105 7e9b7812 2021-02-07 op char *fmted, *s;
109 7e9b7812 2021-02-07 op if (!should_log(priority))
112 d278a0c3 2021-02-23 op if (c != NULL) {
113 7e9b7812 2021-02-07 op len = sizeof(c->addr);
114 7e9b7812 2021-02-07 op ec = getnameinfo((struct sockaddr*)&c->addr, len,
115 7e9b7812 2021-02-07 op hbuf, sizeof(hbuf),
116 7e9b7812 2021-02-07 op sbuf, sizeof(sbuf),
117 7e9b7812 2021-02-07 op NI_NUMERICHOST | NI_NUMERICSERV);
119 7e9b7812 2021-02-07 op fatal("getnameinfo: %s", gai_strerror(ec));
122 7e9b7812 2021-02-07 op if (vasprintf(&fmted, fmt, ap) == -1)
123 7e9b7812 2021-02-07 op fatal("vasprintf: %s", strerror(errno));
125 d278a0c3 2021-02-23 op if (c == NULL)
126 d278a0c3 2021-02-23 op ec = asprintf(&s, "internal: %s", fmted);
128 d278a0c3 2021-02-23 op ec = asprintf(&s, "%s:%s %s", hbuf, sbuf, fmted);
131 d278a0c3 2021-02-23 op fatal("asprintf: %s", strerror(errno));
133 42447f67 2021-04-28 op send_log(priority, s, ec+1);
140 7e9b7812 2021-02-07 op log_err(struct client *c, const char *fmt, ...)
144 7e9b7812 2021-02-07 op va_start(ap, fmt);
145 d278a0c3 2021-02-23 op vlog(LOG_ERR, c, fmt, ap);
150 7e9b7812 2021-02-07 op log_warn(struct client *c, const char *fmt, ...)
154 7e9b7812 2021-02-07 op va_start(ap, fmt);
155 d278a0c3 2021-02-23 op vlog(LOG_WARNING, c, fmt, ap);
160 7e9b7812 2021-02-07 op log_notice(struct client *c, const char *fmt, ...)
164 7e9b7812 2021-02-07 op va_start(ap, fmt);
165 d278a0c3 2021-02-23 op vlog(LOG_NOTICE, c, fmt, ap);
170 7e9b7812 2021-02-07 op log_info(struct client *c, const char *fmt, ...)
174 7e9b7812 2021-02-07 op va_start(ap, fmt);
175 d278a0c3 2021-02-23 op vlog(LOG_INFO, c, fmt, ap);
180 7e9b7812 2021-02-07 op log_debug(struct client *c, const char *fmt, ...)
184 7e9b7812 2021-02-07 op va_start(ap, fmt);
185 d278a0c3 2021-02-23 op vlog(LOG_DEBUG, c, fmt, ap);
189 7e9b7812 2021-02-07 op /* strchr, but with a bound */
190 7e9b7812 2021-02-07 op static char *
191 7e9b7812 2021-02-07 op gmid_strnchr(char *s, int c, size_t len)
195 7e9b7812 2021-02-07 op for (i = 0; i < len; ++i)
196 7e9b7812 2021-02-07 op if (s[i] == c)
197 7e9b7812 2021-02-07 op return &s[i];
202 7e9b7812 2021-02-07 op log_request(struct client *c, char *meta, size_t l)
204 7e9b7812 2021-02-07 op char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV], b[GEMINI_URL_LEN];
205 d278a0c3 2021-02-23 op char *t, *fmted;
209 7e9b7812 2021-02-07 op len = sizeof(c->addr);
210 7e9b7812 2021-02-07 op ec = getnameinfo((struct sockaddr*)&c->addr, len,
211 7e9b7812 2021-02-07 op hbuf, sizeof(hbuf),
212 7e9b7812 2021-02-07 op sbuf, sizeof(sbuf),
213 7e9b7812 2021-02-07 op NI_NUMERICHOST | NI_NUMERICSERV);
215 7e9b7812 2021-02-07 op fatal("getnameinfo: %s", gai_strerror(ec));
217 7e9b7812 2021-02-07 op if (c->iri.schema != NULL) {
218 7e9b7812 2021-02-07 op /* serialize the IRI */
219 7e9b7812 2021-02-07 op strlcpy(b, c->iri.schema, sizeof(b));
220 7e9b7812 2021-02-07 op strlcat(b, "://", sizeof(b));
222 7e9b7812 2021-02-07 op /* log the decoded host name, but if it was invalid
223 7e9b7812 2021-02-07 op * use the raw one. */
224 7e9b7812 2021-02-07 op if (*c->domain != '\0')
225 7e9b7812 2021-02-07 op strlcat(b, c->domain, sizeof(b));
227 7e9b7812 2021-02-07 op strlcat(b, c->iri.host, sizeof(b));
229 7e9b7812 2021-02-07 op strlcat(b, "/", sizeof(b));
230 7e9b7812 2021-02-07 op strlcat(b, c->iri.path, sizeof(b)); /* TODO: sanitize UTF8 */
231 7e9b7812 2021-02-07 op if (*c->iri.query != '\0') { /* TODO: sanitize UTF8 */
232 7e9b7812 2021-02-07 op strlcat(b, "?", sizeof(b));
233 7e9b7812 2021-02-07 op strlcat(b, c->iri.query, sizeof(b));
236 7e9b7812 2021-02-07 op strlcpy(b, c->req, sizeof(b));
239 7e9b7812 2021-02-07 op if ((t = gmid_strnchr(meta, '\r', l)) == NULL)
240 7e9b7812 2021-02-07 op t = meta + len;
242 d278a0c3 2021-02-23 op ec = asprintf(&fmted, "%s:%s GET %s %.*s", hbuf, sbuf, b,
243 d278a0c3 2021-02-23 op (int)(t-meta), meta);
245 d278a0c3 2021-02-23 op err(1, "asprintf");
246 42447f67 2021-04-28 op send_log(LOG_NOTICE, fmted, ec+1);
253 bc99d868 2021-03-19 op handle_imsg_quit(struct imsgbuf *ibuf, struct imsg *imsg, size_t datalen)
255 bc99d868 2021-03-19 op event_loopbreak();
259 bc99d868 2021-03-19 op handle_imsg_log(struct imsgbuf *ibuf, struct imsg *imsg, size_t datalen)
263 bc99d868 2021-03-19 op msg = imsg->data;
264 bc99d868 2021-03-19 op msg[datalen-1] = '\0';
266 b3342582 2021-04-14 op if (conf.foreground) {
267 b3342582 2021-04-14 op print_date();
268 bc99d868 2021-03-19 op fprintf(stderr, "%s\n", msg);
270 42447f67 2021-04-28 op syslog(LOG_DAEMON | imsg->hdr.peerid, "%s", msg);
274 bc99d868 2021-03-19 op handle_dispatch_imsg(int fd, short ev, void *d)
276 bc99d868 2021-03-19 op struct imsgbuf *ibuf = d;
277 bc99d868 2021-03-19 op dispatch_imsg(ibuf, handlers, sizeof(handlers));
281 d278a0c3 2021-02-23 op logger_main(int fd, struct imsgbuf *ibuf)
283 d278a0c3 2021-02-23 op event_init();
285 bc99d868 2021-03-19 op event_set(&imsgev, fd, EV_READ | EV_PERSIST, &handle_dispatch_imsg, ibuf);
286 bc99d868 2021-03-19 op event_add(&imsgev, NULL);
288 62e001b0 2021-03-20 op sandbox_logger_process();
290 d278a0c3 2021-02-23 op event_dispatch();