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460b9539 | 1 | /* |
2 | * This file is part of DisOrder. | |
3 | * Copyright (C) 2004, 2005, 2006 Richard Kettlewell | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
18 | * USA | |
19 | */ | |
20 | ||
21 | #include <config.h> | |
22 | #include "types.h" | |
23 | ||
24 | #include <pwd.h> | |
25 | #include <sys/types.h> | |
26 | #include <sys/socket.h> | |
27 | #include <sys/time.h> | |
28 | #include <unistd.h> | |
29 | #include <stdlib.h> | |
30 | #include <string.h> | |
31 | #include <errno.h> | |
32 | #include <fcntl.h> | |
33 | #include <gcrypt.h> | |
34 | #include <stddef.h> | |
35 | #include <time.h> | |
36 | #include <limits.h> | |
37 | #include <pcre.h> | |
38 | #include <netdb.h> | |
39 | #include <netinet/in.h> | |
40 | ||
41 | #include "event.h" | |
42 | #include "server.h" | |
43 | #include "syscalls.h" | |
44 | #include "queue.h" | |
45 | #include "play.h" | |
46 | #include "log.h" | |
47 | #include "mem.h" | |
48 | #include "state.h" | |
49 | #include "charset.h" | |
50 | #include "split.h" | |
51 | #include "configuration.h" | |
52 | #include "hex.h" | |
53 | #include "trackdb.h" | |
54 | #include "table.h" | |
55 | #include "kvp.h" | |
56 | #include "mixer.h" | |
57 | #include "sink.h" | |
58 | #include "authhash.h" | |
59 | #include "plugin.h" | |
60 | #include "printf.h" | |
61 | #include "trackname.h" | |
62 | #include "eventlog.h" | |
63 | #include "defs.h" | |
64 | #include "cache.h" | |
65 | ||
66 | #ifndef NONCE_SIZE | |
67 | # define NONCE_SIZE 16 | |
68 | #endif | |
69 | ||
70 | int volume_left, volume_right; /* last known volume */ | |
71 | ||
18e6d6e6 | 72 | /** @brief Accept all well-formed login attempts |
73 | * | |
74 | * Used in debugging. | |
75 | */ | |
76 | int wideopen; | |
77 | ||
460b9539 | 78 | struct listener { |
79 | const char *name; | |
80 | int pf; | |
81 | }; | |
82 | ||
83 | struct conn { | |
84 | ev_reader *r; | |
85 | ev_writer *w; | |
86 | int fd; | |
87 | unsigned tag; | |
88 | char *who; | |
89 | ev_source *ev; | |
90 | unsigned char nonce[NONCE_SIZE]; | |
91 | ev_reader_callback *reader; | |
92 | struct eventlog_output *lo; | |
93 | const struct listener *l; | |
94 | }; | |
95 | ||
96 | static int reader_callback(ev_source *ev, | |
97 | ev_reader *reader, | |
98 | int fd, | |
99 | void *ptr, | |
100 | size_t bytes, | |
101 | int eof, | |
102 | void *u); | |
103 | ||
104 | static const char *noyes[] = { "no", "yes" }; | |
105 | ||
106 | static int writer_error(ev_source attribute((unused)) *ev, | |
107 | int fd, | |
108 | int errno_value, | |
109 | void *u) { | |
110 | struct conn *c = u; | |
111 | ||
112 | D(("server writer_error %d %d", fd, errno_value)); | |
113 | if(errno_value == 0) { | |
114 | /* writer is done */ | |
115 | c->w = 0; | |
116 | if(c->r == 0) { | |
117 | D(("server writer_error closes %d", fd)); | |
118 | xclose(fd); /* reader is done too, close */ | |
119 | } else { | |
120 | D(("server writer_error shutdown %d SHUT_WR", fd)); | |
121 | xshutdown(fd, SHUT_WR); /* reader is not done yet */ | |
122 | } | |
123 | } else { | |
124 | if(errno_value != EPIPE) | |
125 | error(errno_value, "S%x write error on socket", c->tag); | |
126 | if(c->r) | |
127 | ev_reader_cancel(c->r); | |
128 | xclose(fd); | |
129 | } | |
130 | return 0; | |
131 | } | |
132 | ||
133 | static int reader_error(ev_source attribute((unused)) *ev, | |
134 | int fd, | |
135 | int errno_value, | |
136 | void *u) { | |
137 | struct conn *c = u; | |
138 | ||
139 | D(("server reader_error %d %d", fd, errno_value)); | |
140 | error(errno, "S%x read error on socket", c->tag); | |
141 | ev_writer_cancel(c->w); | |
142 | xclose(fd); | |
143 | return 0; | |
144 | } | |
145 | ||
146 | /* return true if we are talking to a trusted user */ | |
147 | static int trusted(struct conn *c) { | |
148 | int n; | |
149 | ||
150 | for(n = 0; (n < config->trust.n | |
151 | && strcmp(config->trust.s[n], c->who)); ++n) | |
152 | ; | |
153 | return n < config->trust.n; | |
154 | } | |
155 | ||
156 | static int c_disable(struct conn *c, char **vec, int nvec) { | |
157 | if(nvec == 0) | |
158 | disable_playing(c->who); | |
159 | else if(nvec == 1 && !strcmp(vec[0], "now")) | |
160 | disable_playing(c->who); | |
161 | else { | |
162 | sink_writes(ev_writer_sink(c->w), "550 invalid argument\n"); | |
163 | return 1; /* completed */ | |
164 | } | |
165 | sink_writes(ev_writer_sink(c->w), "250 OK\n"); | |
166 | return 1; /* completed */ | |
167 | } | |
168 | ||
169 | static int c_enable(struct conn *c, | |
170 | char attribute((unused)) **vec, | |
171 | int attribute((unused)) nvec) { | |
172 | enable_playing(c->who, c->ev); | |
173 | /* Enable implicitly unpauses if there is nothing playing */ | |
174 | if(paused && !playing) resume_playing(c->who); | |
175 | sink_writes(ev_writer_sink(c->w), "250 OK\n"); | |
176 | return 1; /* completed */ | |
177 | } | |
178 | ||
179 | static int c_enabled(struct conn *c, | |
180 | char attribute((unused)) **vec, | |
181 | int attribute((unused)) nvec) { | |
182 | sink_printf(ev_writer_sink(c->w), "252 %s\n", noyes[playing_is_enabled()]); | |
183 | return 1; /* completed */ | |
184 | } | |
185 | ||
186 | static int c_play(struct conn *c, char **vec, | |
187 | int attribute((unused)) nvec) { | |
188 | const char *track; | |
189 | struct queue_entry *q; | |
190 | ||
191 | if(!trackdb_exists(vec[0])) { | |
192 | sink_writes(ev_writer_sink(c->w), "550 track is not in database\n"); | |
193 | return 1; | |
194 | } | |
195 | if(!(track = trackdb_resolve(vec[0]))) { | |
196 | sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n"); | |
197 | return 1; | |
198 | } | |
199 | q = queue_add(track, c->who, WHERE_BEFORE_RANDOM); | |
200 | queue_write(); | |
201 | /* If we added the first track, and something is playing, then prepare the | |
202 | * new track. If nothing is playing then we don't bother as it wouldn't gain | |
203 | * anything. */ | |
204 | if(q == qhead.next && playing) | |
205 | prepare(c->ev, q); | |
206 | sink_writes(ev_writer_sink(c->w), "250 queued\n"); | |
207 | /* If the queue was empty but we are for some reason paused then | |
208 | * unpause. */ | |
209 | if(!playing) resume_playing(0); | |
210 | play(c->ev); | |
211 | return 1; /* completed */ | |
212 | } | |
213 | ||
214 | static int c_remove(struct conn *c, char **vec, | |
215 | int attribute((unused)) nvec) { | |
216 | struct queue_entry *q; | |
217 | ||
218 | if(!(q = queue_find(vec[0]))) { | |
219 | sink_writes(ev_writer_sink(c->w), "550 no such track on the queue\n"); | |
220 | return 1; | |
221 | } | |
222 | if(config->restrictions & RESTRICT_REMOVE) { | |
223 | /* can only remove tracks that you submitted */ | |
224 | if(!q->submitter || strcmp(q->submitter, c->who)) { | |
225 | sink_writes(ev_writer_sink(c->w), "550 you didn't submit that track!\n"); | |
226 | return 1; | |
227 | } | |
228 | } | |
229 | queue_remove(q, c->who); | |
230 | /* De-prepare the track. */ | |
231 | abandon(c->ev, q); | |
232 | /* If we removed the random track then add another one. */ | |
233 | if(q->state == playing_random) | |
234 | add_random_track(); | |
235 | /* Prepare whatever the next head track is. */ | |
236 | if(qhead.next != &qhead) | |
237 | prepare(c->ev, qhead.next); | |
238 | queue_write(); | |
239 | sink_writes(ev_writer_sink(c->w), "250 removed\n"); | |
240 | return 1; /* completed */ | |
241 | } | |
242 | ||
243 | static int c_scratch(struct conn *c, | |
244 | char **vec, | |
245 | int nvec) { | |
246 | if(!playing) { | |
247 | sink_writes(ev_writer_sink(c->w), "250 nothing is playing\n"); | |
248 | return 1; /* completed */ | |
249 | } | |
250 | if(config->restrictions & RESTRICT_SCRATCH) { | |
251 | /* can only scratch tracks you submitted and randomly selected ones */ | |
252 | if(playing->submitter && strcmp(playing->submitter, c->who)) { | |
253 | sink_writes(ev_writer_sink(c->w), "550 you didn't submit that track!\n"); | |
254 | return 1; | |
255 | } | |
256 | } | |
257 | scratch(c->who, nvec == 1 ? vec[0] : 0); | |
258 | /* If you scratch an unpaused track then it is automatically unpaused */ | |
259 | resume_playing(0); | |
260 | sink_writes(ev_writer_sink(c->w), "250 scratched\n"); | |
261 | return 1; /* completed */ | |
262 | } | |
263 | ||
264 | static int c_pause(struct conn *c, | |
265 | char attribute((unused)) **vec, | |
266 | int attribute((unused)) nvec) { | |
267 | if(!playing) { | |
268 | sink_writes(ev_writer_sink(c->w), "250 nothing is playing\n"); | |
269 | return 1; /* completed */ | |
270 | } | |
271 | if(paused) { | |
272 | sink_writes(ev_writer_sink(c->w), "250 already paused\n"); | |
273 | return 1; /* completed */ | |
274 | } | |
275 | if(pause_playing(c->who) < 0) | |
276 | sink_writes(ev_writer_sink(c->w), "550 cannot pause this track\n"); | |
277 | else | |
278 | sink_writes(ev_writer_sink(c->w), "250 paused\n"); | |
279 | return 1; | |
280 | } | |
281 | ||
282 | static int c_resume(struct conn *c, | |
283 | char attribute((unused)) **vec, | |
284 | int attribute((unused)) nvec) { | |
285 | if(!paused) { | |
286 | sink_writes(ev_writer_sink(c->w), "250 not paused\n"); | |
287 | return 1; /* completed */ | |
288 | } | |
289 | resume_playing(c->who); | |
290 | sink_writes(ev_writer_sink(c->w), "250 paused\n"); | |
291 | return 1; | |
292 | } | |
293 | ||
294 | static int c_shutdown(struct conn *c, | |
295 | char attribute((unused)) **vec, | |
296 | int attribute((unused)) nvec) { | |
297 | info("S%x shut down by %s", c->tag, c->who); | |
298 | sink_writes(ev_writer_sink(c->w), "250 shutting down\n"); | |
299 | ev_writer_flush(c->w); | |
300 | quit(c->ev); | |
301 | } | |
302 | ||
303 | static int c_reconfigure(struct conn *c, | |
304 | char attribute((unused)) **vec, | |
305 | int attribute((unused)) nvec) { | |
306 | info("S%x reconfigure by %s", c->tag, c->who); | |
307 | if(reconfigure(c->ev, 1)) | |
308 | sink_writes(ev_writer_sink(c->w), "550 error reading new config\n"); | |
309 | else | |
310 | sink_writes(ev_writer_sink(c->w), "250 installed new config\n"); | |
311 | return 1; /* completed */ | |
312 | } | |
313 | ||
314 | static int c_rescan(struct conn *c, | |
315 | char attribute((unused)) **vec, | |
316 | int attribute((unused)) nvec) { | |
317 | info("S%x rescan by %s", c->tag, c->who); | |
318 | trackdb_rescan(c->ev); | |
319 | sink_writes(ev_writer_sink(c->w), "250 initiated rescan\n"); | |
320 | return 1; /* completed */ | |
321 | } | |
322 | ||
323 | static int c_version(struct conn *c, | |
324 | char attribute((unused)) **vec, | |
325 | int attribute((unused)) nvec) { | |
326 | /* VERSION had better only use the basic character set */ | |
327 | sink_printf(ev_writer_sink(c->w), "251 %s\n", disorder_version_string); | |
328 | return 1; /* completed */ | |
329 | } | |
330 | ||
331 | static int c_playing(struct conn *c, | |
332 | char attribute((unused)) **vec, | |
333 | int attribute((unused)) nvec) { | |
334 | if(playing) { | |
335 | queue_fix_sofar(playing); | |
336 | playing->expected = 0; | |
337 | sink_printf(ev_writer_sink(c->w), "252 %s\n", queue_marshall(playing)); | |
338 | } else | |
339 | sink_printf(ev_writer_sink(c->w), "259 nothing playing\n"); | |
340 | return 1; /* completed */ | |
341 | } | |
342 | ||
343 | static int c_become(struct conn *c, | |
344 | char **vec, | |
345 | int attribute((unused)) nvec) { | |
346 | c->who = vec[0]; | |
347 | sink_writes(ev_writer_sink(c->w), "230 OK\n"); | |
348 | return 1; | |
349 | } | |
350 | ||
351 | static int c_user(struct conn *c, | |
352 | char **vec, | |
353 | int attribute((unused)) nvec) { | |
354 | int n; | |
355 | const char *res; | |
356 | union { | |
357 | struct sockaddr sa; | |
358 | struct sockaddr_in in; | |
359 | struct sockaddr_in6 in6; | |
360 | } u; | |
361 | socklen_t l; | |
362 | char host[1024]; | |
363 | ||
364 | if(c->who) { | |
365 | sink_writes(ev_writer_sink(c->w), "530 already authenticated\n"); | |
366 | return 1; | |
367 | } | |
368 | /* get connection data */ | |
369 | l = sizeof u; | |
370 | if(getpeername(c->fd, &u.sa, &l) < 0) { | |
371 | error(errno, "S%x error calling getpeername", c->tag); | |
372 | sink_writes(ev_writer_sink(c->w), "530 authentication failure\n"); | |
373 | return 1; | |
374 | } | |
375 | if(c->l->pf != PF_UNIX) { | |
376 | if((n = getnameinfo(&u.sa, l, | |
377 | host, sizeof host, 0, 0, NI_NUMERICHOST))) { | |
378 | error(0, "S%x error calling getnameinfo: %s", c->tag, gai_strerror(n)); | |
379 | sink_writes(ev_writer_sink(c->w), "530 authentication failure\n"); | |
380 | return 1; | |
381 | } | |
18e6d6e6 | 382 | } else |
383 | strcpy(host, "local"); | |
460b9539 | 384 | /* find the user */ |
385 | for(n = 0; n < config->allow.n | |
386 | && strcmp(config->allow.s[n].s[0], vec[0]); ++n) | |
387 | ; | |
388 | /* if it's a real user check whether the response is right */ | |
18e6d6e6 | 389 | if(n >= config->allow.n) { |
390 | info("S%x unknown user '%s' from %s", c->tag, vec[0], host); | |
391 | sink_writes(ev_writer_sink(c->w), "530 authentication failed\n"); | |
392 | return 1; | |
393 | } | |
637fdea3 RK |
394 | res = authhash(c->nonce, sizeof c->nonce, config->allow.s[n].s[1], |
395 | config->authorization_algorithm); | |
18e6d6e6 | 396 | if(wideopen || (res && !strcmp(res, vec[1]))) { |
397 | c->who = vec[0]; | |
398 | /* currently we only bother logging remote connections */ | |
399 | if(c->l->pf != PF_UNIX) | |
400 | info("S%x %s connected from %s", c->tag, vec[0], host); | |
401 | sink_writes(ev_writer_sink(c->w), "230 OK\n"); | |
402 | return 1; | |
460b9539 | 403 | } |
404 | /* oops, response was wrong */ | |
18e6d6e6 | 405 | info("S%x authentication failure for %s from %s", c->tag, vec[0], host); |
460b9539 | 406 | sink_writes(ev_writer_sink(c->w), "530 authentication failed\n"); |
407 | return 1; | |
408 | } | |
409 | ||
410 | static int c_recent(struct conn *c, | |
411 | char attribute((unused)) **vec, | |
412 | int attribute((unused)) nvec) { | |
413 | const struct queue_entry *q; | |
414 | ||
415 | sink_writes(ev_writer_sink(c->w), "253 Tracks follow\n"); | |
416 | for(q = phead.next; q != &phead; q = q->next) | |
417 | sink_printf(ev_writer_sink(c->w), " %s\n", queue_marshall(q)); | |
418 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
419 | return 1; /* completed */ | |
420 | } | |
421 | ||
422 | static int c_queue(struct conn *c, | |
423 | char attribute((unused)) **vec, | |
424 | int attribute((unused)) nvec) { | |
425 | struct queue_entry *q; | |
426 | time_t when = 0; | |
427 | const char *l; | |
428 | long length; | |
429 | ||
430 | sink_writes(ev_writer_sink(c->w), "253 Tracks follow\n"); | |
431 | if(playing_is_enabled() && !paused) { | |
432 | if(playing) { | |
433 | queue_fix_sofar(playing); | |
434 | if((l = trackdb_get(playing->track, "_length")) | |
435 | && (length = atol(l))) { | |
436 | time(&when); | |
437 | when += length - playing->sofar + config->gap; | |
438 | } | |
439 | } else | |
440 | /* Nothing is playing but playing is enabled, so whatever is | |
441 | * first in the queue can be expected to start immediately. */ | |
442 | time(&when); | |
443 | } | |
444 | for(q = qhead.next; q != &qhead; q = q->next) { | |
445 | /* fill in estimated start time */ | |
446 | q->expected = when; | |
447 | sink_printf(ev_writer_sink(c->w), " %s\n", queue_marshall(q)); | |
448 | /* update for next track */ | |
449 | if(when) { | |
450 | if((l = trackdb_get(q->track, "_length")) | |
451 | && (length = atol(l))) | |
452 | when += length + config->gap; | |
453 | else | |
454 | when = 0; | |
455 | } | |
456 | } | |
457 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
458 | return 1; /* completed */ | |
459 | } | |
460 | ||
461 | static int output_list(struct conn *c, char **vec) { | |
462 | while(*vec) | |
463 | sink_printf(ev_writer_sink(c->w), "%s\n", *vec++); | |
464 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
465 | return 1; | |
466 | } | |
467 | ||
468 | static int files_dirs(struct conn *c, | |
469 | char **vec, | |
470 | int nvec, | |
471 | enum trackdb_listable what) { | |
472 | const char *dir, *re, *errstr; | |
473 | int erroffset; | |
474 | pcre *rec; | |
475 | char **fvec, *key; | |
476 | ||
477 | switch(nvec) { | |
478 | case 0: dir = 0; re = 0; break; | |
479 | case 1: dir = vec[0]; re = 0; break; | |
480 | case 2: dir = vec[0]; re = vec[1]; break; | |
481 | default: abort(); | |
482 | } | |
483 | /* A bit of a bodge to make sure the args don't trample on cache keys */ | |
484 | if(dir && strchr(dir, '\n')) { | |
485 | sink_writes(ev_writer_sink(c->w), "550 invalid directory name\n"); | |
486 | return 1; | |
487 | } | |
488 | if(re && strchr(re, '\n')) { | |
489 | sink_writes(ev_writer_sink(c->w), "550 invalid regexp\n"); | |
490 | return 1; | |
491 | } | |
492 | /* We bother eliminating "" because the web interface is relatively | |
493 | * likely to send it */ | |
494 | if(re && *re) { | |
495 | byte_xasprintf(&key, "%d\n%s\n%s", (int)what, dir ? dir : "", re); | |
496 | fvec = (char **)cache_get(&cache_files_type, key); | |
497 | if(fvec) { | |
498 | /* Got a cache hit, don't store the answer in the cache */ | |
499 | key = 0; | |
500 | ++cache_files_hits; | |
501 | rec = 0; /* quieten compiler */ | |
502 | } else { | |
503 | /* Cache miss, we'll do the lookup and key != 0 so we'll store the answer | |
504 | * in the cache. */ | |
505 | if(!(rec = pcre_compile(re, PCRE_CASELESS|PCRE_UTF8, | |
506 | &errstr, &erroffset, 0))) { | |
507 | sink_printf(ev_writer_sink(c->w), "550 Error compiling regexp: %s\n", | |
508 | errstr); | |
509 | return 1; | |
510 | } | |
511 | /* It only counts as a miss if the regexp was valid. */ | |
512 | ++cache_files_misses; | |
513 | } | |
514 | } else { | |
515 | /* No regexp, don't bother caching the result */ | |
516 | rec = 0; | |
517 | key = 0; | |
518 | fvec = 0; | |
519 | } | |
520 | if(!fvec) { | |
521 | /* No cache hit (either because a miss, or because we did not look) so do | |
522 | * the lookup */ | |
523 | if(dir && *dir) | |
524 | fvec = trackdb_list(dir, 0, what, rec); | |
525 | else | |
526 | fvec = trackdb_list(0, 0, what, rec); | |
527 | } | |
528 | if(key) | |
529 | /* Put the answer in the cache */ | |
530 | cache_put(&cache_files_type, key, fvec); | |
531 | sink_writes(ev_writer_sink(c->w), "253 Listing follow\n"); | |
532 | return output_list(c, fvec); | |
533 | } | |
534 | ||
535 | static int c_files(struct conn *c, | |
536 | char **vec, | |
537 | int nvec) { | |
538 | return files_dirs(c, vec, nvec, trackdb_files); | |
539 | } | |
540 | ||
541 | static int c_dirs(struct conn *c, | |
542 | char **vec, | |
543 | int nvec) { | |
544 | return files_dirs(c, vec, nvec, trackdb_directories); | |
545 | } | |
546 | ||
547 | static int c_allfiles(struct conn *c, | |
548 | char **vec, | |
549 | int nvec) { | |
550 | return files_dirs(c, vec, nvec, trackdb_directories|trackdb_files); | |
551 | } | |
552 | ||
553 | static int c_get(struct conn *c, | |
554 | char **vec, | |
555 | int attribute((unused)) nvec) { | |
556 | const char *v; | |
557 | ||
558 | if(vec[1][0] != '_' && (v = trackdb_get(vec[0], vec[1]))) | |
559 | sink_printf(ev_writer_sink(c->w), "252 %s\n", v); | |
560 | else | |
561 | sink_writes(ev_writer_sink(c->w), "550 not found\n"); | |
562 | return 1; | |
563 | } | |
564 | ||
565 | static int c_length(struct conn *c, | |
566 | char **vec, | |
567 | int attribute((unused)) nvec) { | |
568 | const char *track, *v; | |
569 | ||
570 | if(!(track = trackdb_resolve(vec[0]))) { | |
571 | sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n"); | |
572 | return 1; | |
573 | } | |
574 | if((v = trackdb_get(track, "_length"))) | |
575 | sink_printf(ev_writer_sink(c->w), "252 %s\n", v); | |
576 | else | |
577 | sink_writes(ev_writer_sink(c->w), "550 not found\n"); | |
578 | return 1; | |
579 | } | |
580 | ||
581 | static int c_set(struct conn *c, | |
582 | char **vec, | |
583 | int attribute((unused)) nvec) { | |
584 | if(vec[1][0] != '_' && !trackdb_set(vec[0], vec[1], vec[2])) | |
585 | sink_writes(ev_writer_sink(c->w), "250 OK\n"); | |
586 | else | |
587 | sink_writes(ev_writer_sink(c->w), "550 not found\n"); | |
588 | return 1; | |
589 | } | |
590 | ||
591 | static int c_prefs(struct conn *c, | |
592 | char **vec, | |
593 | int attribute((unused)) nvec) { | |
594 | struct kvp *k; | |
595 | ||
596 | k = trackdb_get_all(vec[0]); | |
597 | sink_writes(ev_writer_sink(c->w), "253 prefs follow\n"); | |
598 | for(; k; k = k->next) | |
599 | if(k->name[0] != '_') /* omit internal values */ | |
600 | sink_printf(ev_writer_sink(c->w), | |
601 | " %s %s\n", quoteutf8(k->name), quoteutf8(k->value)); | |
602 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
603 | return 1; | |
604 | } | |
605 | ||
606 | static int c_exists(struct conn *c, | |
607 | char **vec, | |
608 | int attribute((unused)) nvec) { | |
609 | sink_printf(ev_writer_sink(c->w), "252 %s\n", noyes[trackdb_exists(vec[0])]); | |
610 | return 1; | |
611 | } | |
612 | ||
613 | static void search_parse_error(const char *msg, void *u) { | |
614 | *(const char **)u = msg; | |
615 | } | |
616 | ||
617 | static int c_search(struct conn *c, | |
618 | char **vec, | |
619 | int attribute((unused)) nvec) { | |
620 | char **terms, **results; | |
621 | int nterms, nresults, n; | |
622 | const char *e = "unknown error"; | |
623 | ||
624 | /* This is a bit of a bodge. Initially it's there to make the eclient | |
625 | * interface a bit more convenient to add searching to, but it has the more | |
626 | * compelling advantage that if everything uses it, then interpretation of | |
627 | * user-supplied search strings will be the same everywhere. */ | |
628 | if(!(terms = split(vec[0], &nterms, SPLIT_QUOTES, search_parse_error, &e))) { | |
629 | sink_printf(ev_writer_sink(c->w), "550 %s\n", e); | |
630 | } else { | |
631 | results = trackdb_search(terms, nterms, &nresults); | |
632 | sink_printf(ev_writer_sink(c->w), "253 %d matches\n", nresults); | |
633 | for(n = 0; n < nresults; ++n) | |
634 | sink_printf(ev_writer_sink(c->w), "%s\n", results[n]); | |
635 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
636 | } | |
637 | return 1; | |
638 | } | |
639 | ||
640 | static int c_random_enable(struct conn *c, | |
641 | char attribute((unused)) **vec, | |
642 | int attribute((unused)) nvec) { | |
643 | enable_random(c->who, c->ev); | |
644 | /* Enable implicitly unpauses if there is nothing playing */ | |
645 | if(paused && !playing) resume_playing(c->who); | |
646 | sink_writes(ev_writer_sink(c->w), "250 OK\n"); | |
647 | return 1; /* completed */ | |
648 | } | |
649 | ||
650 | static int c_random_disable(struct conn *c, | |
651 | char attribute((unused)) **vec, | |
652 | int attribute((unused)) nvec) { | |
653 | disable_random(c->who); | |
654 | sink_writes(ev_writer_sink(c->w), "250 OK\n"); | |
655 | return 1; /* completed */ | |
656 | } | |
657 | ||
658 | static int c_random_enabled(struct conn *c, | |
659 | char attribute((unused)) **vec, | |
660 | int attribute((unused)) nvec) { | |
661 | sink_printf(ev_writer_sink(c->w), "252 %s\n", noyes[random_is_enabled()]); | |
662 | return 1; /* completed */ | |
663 | } | |
664 | ||
665 | static int c_stats(struct conn *c, | |
666 | char attribute((unused)) **vec, | |
667 | int attribute((unused)) nvec) { | |
668 | char **v; | |
669 | int nv, n; | |
670 | ||
671 | v = trackdb_stats(&nv); | |
672 | sink_printf(ev_writer_sink(c->w), "253 stats\n"); | |
673 | for(n = 0; n < nv; ++n) { | |
674 | if(v[n][0] == '.') | |
675 | sink_writes(ev_writer_sink(c->w), "."); | |
676 | sink_printf(ev_writer_sink(c->w), "%s\n", v[n]); | |
677 | } | |
678 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
679 | return 1; | |
680 | } | |
681 | ||
682 | static int c_volume(struct conn *c, | |
683 | char **vec, | |
684 | int nvec) { | |
685 | int l, r, set; | |
686 | char lb[32], rb[32]; | |
687 | ||
688 | switch(nvec) { | |
689 | case 0: | |
690 | set = 0; | |
691 | break; | |
692 | case 1: | |
693 | l = r = atoi(vec[0]); | |
694 | set = 1; | |
695 | break; | |
696 | case 2: | |
697 | l = atoi(vec[0]); | |
698 | r = atoi(vec[1]); | |
699 | set = 1; | |
700 | break; | |
701 | default: | |
702 | abort(); | |
703 | } | |
704 | if(mixer_control(&l, &r, set)) | |
705 | sink_writes(ev_writer_sink(c->w), "550 error accessing mixer\n"); | |
706 | else { | |
707 | sink_printf(ev_writer_sink(c->w), "252 %d %d\n", l, r); | |
708 | if(l != volume_left || r != volume_right) { | |
709 | volume_left = l; | |
710 | volume_right = r; | |
711 | snprintf(lb, sizeof lb, "%d", l); | |
712 | snprintf(rb, sizeof rb, "%d", r); | |
713 | eventlog("volume", lb, rb, (char *)0); | |
714 | } | |
715 | } | |
716 | return 1; | |
717 | } | |
718 | ||
719 | /* we are logging, and some data is available to read */ | |
720 | static int logging_reader_callback(ev_source *ev, | |
721 | ev_reader *reader, | |
722 | int fd, | |
723 | void *ptr, | |
724 | size_t bytes, | |
725 | int eof, | |
726 | void *u) { | |
727 | struct conn *c = u; | |
728 | ||
729 | /* don't log to this conn any more */ | |
730 | eventlog_remove(c->lo); | |
731 | /* terminate the log output */ | |
732 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
733 | /* restore the reader callback */ | |
734 | c->reader = reader_callback; | |
735 | /* ...and exit via it */ | |
736 | return c->reader(ev, reader, fd, ptr, bytes, eof, u); | |
737 | } | |
738 | ||
739 | static void logclient(const char *msg, void *user) { | |
740 | struct conn *c = user; | |
741 | ||
742 | sink_printf(ev_writer_sink(c->w), "%"PRIxMAX" %s\n", | |
743 | (uintmax_t)time(0), msg); | |
744 | } | |
745 | ||
746 | static int c_log(struct conn *c, | |
747 | char attribute((unused)) **vec, | |
748 | int attribute((unused)) nvec) { | |
749 | time_t now; | |
750 | ||
751 | sink_writes(ev_writer_sink(c->w), "254 OK\n"); | |
752 | /* pump out initial state */ | |
753 | time(&now); | |
754 | sink_printf(ev_writer_sink(c->w), "%"PRIxMAX" state %s\n", | |
755 | (uintmax_t)now, | |
756 | playing_is_enabled() ? "enable_play" : "disable_play"); | |
757 | sink_printf(ev_writer_sink(c->w), "%"PRIxMAX" state %s\n", | |
758 | (uintmax_t)now, | |
759 | random_is_enabled() ? "enable_random" : "disable_random"); | |
760 | sink_printf(ev_writer_sink(c->w), "%"PRIxMAX" state %s\n", | |
761 | (uintmax_t)now, | |
762 | paused ? "pause" : "resume"); | |
5abe307a RK |
763 | if(playing) |
764 | sink_printf(ev_writer_sink(c->w), "%"PRIxMAX" state playing\n", | |
765 | (uintmax_t)now); | |
df44d69b RK |
766 | /* Initial volume */ |
767 | sink_printf(ev_writer_sink(c->w), "%"PRIxMAX" volume %d %d\n", | |
768 | (uintmax_t)now, volume_left, volume_right); | |
460b9539 | 769 | c->lo = xmalloc(sizeof *c->lo); |
770 | c->lo->fn = logclient; | |
771 | c->lo->user = c; | |
772 | eventlog_add(c->lo); | |
773 | c->reader = logging_reader_callback; | |
774 | return 0; | |
775 | } | |
776 | ||
777 | static void post_move_cleanup(void) { | |
778 | struct queue_entry *q; | |
779 | ||
780 | /* If we have caused the random track to not be at the end then we make it no | |
781 | * longer be random. */ | |
782 | for(q = qhead.next; q != &qhead; q = q->next) | |
783 | if(q->state == playing_random && q->next != &qhead) | |
784 | q->state = playing_unplayed; | |
785 | /* That might mean we need to add a new random track. */ | |
786 | add_random_track(); | |
787 | queue_write(); | |
788 | } | |
789 | ||
790 | static int c_move(struct conn *c, | |
791 | char **vec, | |
792 | int attribute((unused)) nvec) { | |
793 | struct queue_entry *q; | |
794 | int n; | |
795 | ||
796 | if(config->restrictions & RESTRICT_MOVE) { | |
797 | if(!trusted(c)) { | |
798 | sink_writes(ev_writer_sink(c->w), | |
799 | "550 only trusted users can move tracks\n"); | |
800 | return 1; | |
801 | } | |
802 | } | |
803 | if(!(q = queue_find(vec[0]))) { | |
804 | sink_writes(ev_writer_sink(c->w), "550 no such track on the queue\n"); | |
805 | return 1; | |
806 | } | |
807 | n = queue_move(q, atoi(vec[1]), c->who); | |
808 | post_move_cleanup(); | |
809 | sink_printf(ev_writer_sink(c->w), "252 %d\n", n); | |
810 | /* If we've moved to the head of the queue then prepare the track. */ | |
811 | if(q == qhead.next) | |
812 | prepare(c->ev, q); | |
813 | return 1; | |
814 | } | |
815 | ||
816 | static int c_moveafter(struct conn *c, | |
817 | char **vec, | |
818 | int attribute((unused)) nvec) { | |
819 | struct queue_entry *q, **qs; | |
820 | int n; | |
821 | ||
822 | if(config->restrictions & RESTRICT_MOVE) { | |
823 | if(!trusted(c)) { | |
824 | sink_writes(ev_writer_sink(c->w), | |
825 | "550 only trusted users can move tracks\n"); | |
826 | return 1; | |
827 | } | |
828 | } | |
829 | if(vec[0][0]) { | |
830 | if(!(q = queue_find(vec[0]))) { | |
831 | sink_writes(ev_writer_sink(c->w), "550 no such track on the queue\n"); | |
832 | return 1; | |
833 | } | |
834 | } else | |
835 | q = 0; | |
836 | ++vec; | |
837 | --nvec; | |
838 | qs = xcalloc(nvec, sizeof *qs); | |
839 | for(n = 0; n < nvec; ++n) | |
840 | if(!(qs[n] = queue_find(vec[n]))) { | |
841 | sink_writes(ev_writer_sink(c->w), "550 no such track on the queue\n"); | |
842 | return 1; | |
843 | } | |
844 | queue_moveafter(q, nvec, qs, c->who); | |
845 | post_move_cleanup(); | |
846 | sink_printf(ev_writer_sink(c->w), "250 Moved tracks\n"); | |
847 | /* If we've moved to the head of the queue then prepare the track. */ | |
848 | if(q == qhead.next) | |
849 | prepare(c->ev, q); | |
850 | return 1; | |
851 | } | |
852 | ||
853 | static int c_part(struct conn *c, | |
854 | char **vec, | |
855 | int attribute((unused)) nvec) { | |
856 | sink_printf(ev_writer_sink(c->w), "252 %s\n", | |
857 | trackdb_getpart(vec[0], vec[1], vec[2])); | |
858 | return 1; | |
859 | } | |
860 | ||
861 | static int c_resolve(struct conn *c, | |
862 | char **vec, | |
863 | int attribute((unused)) nvec) { | |
864 | const char *track; | |
865 | ||
866 | if(!(track = trackdb_resolve(vec[0]))) { | |
867 | sink_writes(ev_writer_sink(c->w), "550 cannot resolve track\n"); | |
868 | return 1; | |
869 | } | |
870 | sink_printf(ev_writer_sink(c->w), "252 %s\n", track); | |
871 | return 1; | |
872 | } | |
873 | ||
874 | static int c_tags(struct conn *c, | |
875 | char attribute((unused)) **vec, | |
876 | int attribute((unused)) nvec) { | |
877 | char **tags = trackdb_alltags(); | |
878 | ||
879 | sink_printf(ev_writer_sink(c->w), "253 Tag list follows\n"); | |
880 | while(*tags) { | |
881 | sink_printf(ev_writer_sink(c->w), "%s%s\n", | |
882 | **tags == '.' ? "." : "", *tags); | |
883 | ++tags; | |
884 | } | |
885 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
886 | return 1; /* completed */ | |
887 | ||
888 | } | |
889 | ||
890 | static int c_set_global(struct conn *c, | |
891 | char **vec, | |
892 | int attribute((unused)) nvec) { | |
893 | trackdb_set_global(vec[0], vec[1], c->who); | |
894 | sink_printf(ev_writer_sink(c->w), "250 OK\n"); | |
895 | return 1; | |
896 | } | |
897 | ||
898 | static int c_get_global(struct conn *c, | |
899 | char **vec, | |
900 | int attribute((unused)) nvec) { | |
901 | const char *s = trackdb_get_global(vec[0]); | |
902 | ||
903 | if(s) | |
904 | sink_printf(ev_writer_sink(c->w), "252 %s\n", s); | |
905 | else | |
906 | sink_writes(ev_writer_sink(c->w), "550 not found\n"); | |
907 | return 1; | |
908 | } | |
909 | ||
7858930d | 910 | static int c_nop(struct conn *c, |
911 | char attribute((unused)) **vec, | |
912 | int attribute((unused)) nvec) { | |
913 | sink_printf(ev_writer_sink(c->w), "250 Quack\n"); | |
914 | return 1; | |
915 | } | |
916 | ||
2a10b70b RK |
917 | static int c_new(struct conn *c, |
918 | char **vec, | |
919 | int nvec) { | |
920 | char **tracks = trackdb_new(0, nvec > 0 ? atoi(vec[0]) : INT_MAX); | |
921 | ||
922 | sink_printf(ev_writer_sink(c->w), "253 New track list follows\n"); | |
923 | while(*tracks) { | |
924 | sink_printf(ev_writer_sink(c->w), "%s%s\n", | |
925 | **tracks == '.' ? "." : "", *tracks); | |
926 | ++tracks; | |
927 | } | |
928 | sink_writes(ev_writer_sink(c->w), ".\n"); | |
929 | return 1; /* completed */ | |
930 | ||
931 | } | |
932 | ||
ca831831 RK |
933 | static int c_rtp_address(struct conn *c, |
934 | char attribute((unused)) **vec, | |
935 | int attribute((unused)) nvec) { | |
936 | if(config->speaker_backend == BACKEND_NETWORK) { | |
937 | sink_printf(ev_writer_sink(c->w), "252 %s %s\n", | |
938 | quoteutf8(config->broadcast.s[0]), | |
939 | quoteutf8(config->broadcast.s[1])); | |
940 | } else | |
941 | sink_writes(ev_writer_sink(c->w), "550 No RTP\n"); | |
942 | return 1; | |
943 | } | |
944 | ||
460b9539 | 945 | #define C_AUTH 0001 /* must be authenticated */ |
946 | #define C_TRUSTED 0002 /* must be trusted user */ | |
947 | ||
948 | static const struct command { | |
949 | const char *name; | |
950 | int minargs, maxargs; | |
951 | int (*fn)(struct conn *, char **, int); | |
952 | unsigned flags; | |
953 | } commands[] = { | |
954 | { "allfiles", 0, 2, c_allfiles, C_AUTH }, | |
955 | { "become", 1, 1, c_become, C_AUTH|C_TRUSTED }, | |
956 | { "dirs", 0, 2, c_dirs, C_AUTH }, | |
957 | { "disable", 0, 1, c_disable, C_AUTH }, | |
958 | { "enable", 0, 0, c_enable, C_AUTH }, | |
959 | { "enabled", 0, 0, c_enabled, C_AUTH }, | |
960 | { "exists", 1, 1, c_exists, C_AUTH }, | |
961 | { "files", 0, 2, c_files, C_AUTH }, | |
962 | { "get", 2, 2, c_get, C_AUTH }, | |
963 | { "get-global", 1, 1, c_get_global, C_AUTH }, | |
964 | { "length", 1, 1, c_length, C_AUTH }, | |
965 | { "log", 0, 0, c_log, C_AUTH }, | |
966 | { "move", 2, 2, c_move, C_AUTH }, | |
967 | { "moveafter", 1, INT_MAX, c_moveafter, C_AUTH }, | |
2a10b70b | 968 | { "new", 0, 1, c_new, C_AUTH }, |
7858930d | 969 | { "nop", 0, 0, c_nop, C_AUTH }, |
460b9539 | 970 | { "part", 3, 3, c_part, C_AUTH }, |
971 | { "pause", 0, 0, c_pause, C_AUTH }, | |
972 | { "play", 1, 1, c_play, C_AUTH }, | |
973 | { "playing", 0, 0, c_playing, C_AUTH }, | |
974 | { "prefs", 1, 1, c_prefs, C_AUTH }, | |
975 | { "queue", 0, 0, c_queue, C_AUTH }, | |
976 | { "random-disable", 0, 0, c_random_disable, C_AUTH }, | |
977 | { "random-enable", 0, 0, c_random_enable, C_AUTH }, | |
978 | { "random-enabled", 0, 0, c_random_enabled, C_AUTH }, | |
979 | { "recent", 0, 0, c_recent, C_AUTH }, | |
980 | { "reconfigure", 0, 0, c_reconfigure, C_AUTH|C_TRUSTED }, | |
981 | { "remove", 1, 1, c_remove, C_AUTH }, | |
982 | { "rescan", 0, 0, c_rescan, C_AUTH|C_TRUSTED }, | |
983 | { "resolve", 1, 1, c_resolve, C_AUTH }, | |
984 | { "resume", 0, 0, c_resume, C_AUTH }, | |
ca831831 | 985 | { "rtp-address", 0, 0, c_rtp_address, C_AUTH }, |
460b9539 | 986 | { "scratch", 0, 1, c_scratch, C_AUTH }, |
987 | { "search", 1, 1, c_search, C_AUTH }, | |
988 | { "set", 3, 3, c_set, C_AUTH, }, | |
989 | { "set-global", 2, 2, c_set_global, C_AUTH }, | |
990 | { "shutdown", 0, 0, c_shutdown, C_AUTH|C_TRUSTED }, | |
991 | { "stats", 0, 0, c_stats, C_AUTH }, | |
992 | { "tags", 0, 0, c_tags, C_AUTH }, | |
993 | { "unset", 2, 2, c_set, C_AUTH }, | |
994 | { "unset-global", 1, 1, c_set_global, C_AUTH }, | |
995 | { "user", 2, 2, c_user, 0 }, | |
996 | { "version", 0, 0, c_version, C_AUTH }, | |
997 | { "volume", 0, 2, c_volume, C_AUTH } | |
998 | }; | |
999 | ||
1000 | static void command_error(const char *msg, void *u) { | |
1001 | struct conn *c = u; | |
1002 | ||
1003 | sink_printf(ev_writer_sink(c->w), "500 parse error: %s\n", msg); | |
1004 | } | |
1005 | ||
1006 | /* process a command. Return 1 if complete, 0 if incomplete. */ | |
1007 | static int command(struct conn *c, char *line) { | |
1008 | char **vec; | |
1009 | int nvec, n; | |
1010 | ||
1011 | D(("server command %s", line)); | |
1012 | if(!(vec = split(line, &nvec, SPLIT_QUOTES, command_error, c))) { | |
1013 | sink_writes(ev_writer_sink(c->w), "500 cannot parse command\n"); | |
1014 | return 1; | |
1015 | } | |
1016 | if(nvec == 0) { | |
1017 | sink_writes(ev_writer_sink(c->w), "500 do what?\n"); | |
1018 | return 1; | |
1019 | } | |
1020 | if((n = TABLE_FIND(commands, struct command, name, vec[0])) < 0) | |
1021 | sink_writes(ev_writer_sink(c->w), "500 unknown command\n"); | |
1022 | else { | |
1023 | if((commands[n].flags & C_AUTH) && !c->who) { | |
1024 | sink_writes(ev_writer_sink(c->w), "530 not authenticated\n"); | |
1025 | return 1; | |
1026 | } | |
1027 | if((commands[n].flags & C_TRUSTED) && !trusted(c)) { | |
1028 | sink_writes(ev_writer_sink(c->w), "530 insufficient privilege\n"); | |
1029 | return 1; | |
1030 | } | |
1031 | ++vec; | |
1032 | --nvec; | |
1033 | if(nvec < commands[n].minargs) { | |
1034 | sink_writes(ev_writer_sink(c->w), "500 missing argument(s)\n"); | |
1035 | return 1; | |
1036 | } | |
1037 | if(nvec > commands[n].maxargs) { | |
1038 | sink_writes(ev_writer_sink(c->w), "500 too many arguments\n"); | |
1039 | return 1; | |
1040 | } | |
1041 | return commands[n].fn(c, vec, nvec); | |
1042 | } | |
1043 | return 1; /* completed */ | |
1044 | } | |
1045 | ||
1046 | /* redirect to the right reader callback for our current state */ | |
1047 | static int redirect_reader_callback(ev_source *ev, | |
1048 | ev_reader *reader, | |
1049 | int fd, | |
1050 | void *ptr, | |
1051 | size_t bytes, | |
1052 | int eof, | |
1053 | void *u) { | |
1054 | struct conn *c = u; | |
1055 | ||
1056 | return c->reader(ev, reader, fd, ptr, bytes, eof, u); | |
1057 | } | |
1058 | ||
1059 | /* the main command reader */ | |
1060 | static int reader_callback(ev_source attribute((unused)) *ev, | |
1061 | ev_reader *reader, | |
1062 | int attribute((unused)) fd, | |
1063 | void *ptr, | |
1064 | size_t bytes, | |
1065 | int eof, | |
1066 | void *u) { | |
1067 | struct conn *c = u; | |
1068 | char *eol; | |
1069 | int complete; | |
1070 | ||
1071 | D(("server reader_callback")); | |
1072 | while((eol = memchr(ptr, '\n', bytes))) { | |
1073 | *eol++ = 0; | |
1074 | ev_reader_consume(reader, eol - (char *)ptr); | |
1075 | complete = command(c, ptr); | |
1076 | bytes -= (eol - (char *)ptr); | |
1077 | ptr = eol; | |
1078 | if(!complete) { | |
1079 | /* the command had better have set a new reader callback */ | |
1080 | if(bytes || eof) | |
1081 | /* there are further bytes to read, or we are at eof; arrange for the | |
1082 | * command's reader callback to handle them */ | |
1083 | return ev_reader_incomplete(reader); | |
1084 | /* nothing's going on right now */ | |
1085 | return 0; | |
1086 | } | |
1087 | /* command completed, we can go around and handle the next one */ | |
1088 | } | |
1089 | if(eof) { | |
1090 | if(bytes) | |
1091 | error(0, "S%x unterminated line", c->tag); | |
1092 | c->r = 0; | |
1093 | return ev_writer_close(c->w); | |
1094 | } | |
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | static int listen_callback(ev_source *ev, | |
1099 | int fd, | |
1100 | const struct sockaddr attribute((unused)) *remote, | |
1101 | socklen_t attribute((unused)) rlen, | |
1102 | void *u) { | |
1103 | const struct listener *l = u; | |
1104 | struct conn *c = xmalloc(sizeof *c); | |
1105 | static unsigned tags; | |
1106 | ||
1107 | D(("server listen_callback fd %d (%s)", fd, l->name)); | |
1108 | nonblock(fd); | |
1109 | cloexec(fd); | |
1110 | c->tag = tags++; | |
1111 | c->ev = ev; | |
1112 | c->w = ev_writer_new(ev, fd, writer_error, c); | |
1113 | c->r = ev_reader_new(ev, fd, redirect_reader_callback, reader_error, c); | |
1114 | c->fd = fd; | |
1115 | c->reader = reader_callback; | |
1116 | c->l = l; | |
1117 | gcry_randomize(c->nonce, sizeof c->nonce, GCRY_STRONG_RANDOM); | |
637fdea3 RK |
1118 | if(!strcmp(config->authorization_algorithm, "sha1") |
1119 | || !strcmp(config->authorization_algorithm, "SHA1")) { | |
1120 | sink_printf(ev_writer_sink(c->w), "231 %s\n", | |
1121 | hex(c->nonce, sizeof c->nonce)); | |
1122 | } else { | |
1123 | sink_printf(ev_writer_sink(c->w), "231 %s %s\n", | |
1124 | config->authorization_algorithm, | |
1125 | hex(c->nonce, sizeof c->nonce)); | |
1126 | } | |
460b9539 | 1127 | return 0; |
1128 | } | |
1129 | ||
1130 | int server_start(ev_source *ev, int pf, | |
1131 | size_t socklen, const struct sockaddr *sa, | |
1132 | const char *name) { | |
1133 | int fd; | |
1134 | struct listener *l = xmalloc(sizeof *l); | |
1135 | static const int one = 1; | |
1136 | ||
1137 | D(("server_init socket %s", name)); | |
1138 | fd = xsocket(pf, SOCK_STREAM, 0); | |
1139 | xsetsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one); | |
1140 | if(bind(fd, sa, socklen) < 0) { | |
1141 | error(errno, "error binding to %s", name); | |
1142 | return -1; | |
1143 | } | |
1144 | xlisten(fd, 128); | |
1145 | nonblock(fd); | |
1146 | cloexec(fd); | |
1147 | l->name = name; | |
1148 | l->pf = pf; | |
1149 | if(ev_listen(ev, fd, listen_callback, l)) exit(EXIT_FAILURE); | |
1150 | return fd; | |
1151 | } | |
1152 | ||
1153 | int server_stop(ev_source *ev, int fd) { | |
1154 | xclose(fd); | |
1155 | return ev_listen_cancel(ev, fd); | |
1156 | } | |
1157 | ||
1158 | /* | |
1159 | Local Variables: | |
1160 | c-basic-offset:2 | |
1161 | comment-column:40 | |
1162 | fill-column:79 | |
1163 | End: | |
1164 | */ |