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[disorder] / clients / disorder.c
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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 <getopt.h>
25#include <sys/types.h>
26#include <sys/socket.h>
27#include <sys/un.h>
28#include <stdio.h>
29#include <errno.h>
30#include <stdlib.h>
31#include <string.h>
32#include <locale.h>
33#include <time.h>
34#include <stddef.h>
35#include <unistd.h>
36#include <assert.h>
fe8f8518 37#include <pcre.h>
2a10b70b 38#include <ctype.h>
460b9539 39
40#include "configuration.h"
41#include "syscalls.h"
42#include "log.h"
43#include "queue.h"
44#include "client.h"
45#include "wstat.h"
46#include "table.h"
47#include "charset.h"
48#include "kvp.h"
49#include "split.h"
50#include "sink.h"
51#include "plugin.h"
52#include "mem.h"
53#include "defs.h"
54#include "authorize.h"
55#include "vector.h"
56
57static int auto_reconfigure;
58
59static const struct option options[] = {
60 { "help", no_argument, 0, 'h' },
61 { "version", no_argument, 0, 'V' },
62 { "config", required_argument, 0, 'c' },
63 { "debug", no_argument, 0, 'd' },
64 { "help-commands", no_argument, 0, 'H' },
65 { 0, 0, 0, 0 }
66};
67
68/* display usage message and terminate */
69static void help(void) {
70 xprintf("Usage:\n"
71 " disorder [OPTIONS] COMMAND ...\n"
72 "Options:\n"
73 " --help, -h Display usage message\n"
74 " --help-commands, -H List commands\n"
75 " --version, -V Display version number\n"
76 " --config PATH, -c PATH Set configuration file\n"
77 " --debug, -d Turn on debugging\n");
78 xfclose(stdout);
79 exit(0);
80}
81
82/* display version number and terminate */
83static void version(void) {
84 xprintf("disorder version %s\n", disorder_version_string);
85 xfclose(stdout);
86 exit(0);
87}
88
89static void cf_version(disorder_client *c,
90 char attribute((unused)) **argv) {
91 char *v;
92
93 if(disorder_version(c, &v)) exit(EXIT_FAILURE);
94 xprintf("%s\n", nullcheck(utf82mb(v)));
95}
96
97static void print_queue_entry(const struct queue_entry *q) {
98 if(q->track) xprintf("track %s\n", nullcheck(utf82mb(q->track)));
99 if(q->id) xprintf(" id %s\n", nullcheck(utf82mb(q->id)));
100 if(q->submitter) xprintf(" submitted by %s at %s",
101 nullcheck(utf82mb(q->submitter)), ctime(&q->when));
102 if(q->played) xprintf(" played at %s", ctime(&q->played));
103 if(q->state == playing_started
104 || q->state == playing_paused) xprintf(" %lds so far", q->sofar);
105 else if(q->expected) xprintf(" might start at %s", ctime(&q->expected));
106 if(q->scratched) xprintf(" scratched by %s\n",
107 nullcheck(utf82mb(q->scratched)));
108 else xprintf(" %s\n", playing_states[q->state]);
109 if(q->wstat) xprintf(" %s\n", wstat(q->wstat));
110}
111
112static void cf_playing(disorder_client *c,
113 char attribute((unused)) **argv) {
114 struct queue_entry *q;
115
116 if(disorder_playing(c, &q)) exit(EXIT_FAILURE);
117 if(q)
118 print_queue_entry(q);
119 else
120 xprintf("nothing\n");
121}
122
123static void cf_play(disorder_client *c, char **argv) {
124 while(*argv)
125 if(disorder_play(c, *argv++)) exit(EXIT_FAILURE);
126}
127
128static void cf_remove(disorder_client *c, char **argv) {
129 if(disorder_remove(c, argv[0])) exit(EXIT_FAILURE);
130}
131
132static void cf_disable(disorder_client *c,
133 char attribute((unused)) **argv) {
134 if(disorder_disable(c)) exit(EXIT_FAILURE);
135}
136
137static void cf_enable(disorder_client *c, char attribute((unused)) **argv) {
138 if(disorder_enable(c)) exit(EXIT_FAILURE);
139}
140
141static void cf_scratch(disorder_client *c,
142 char **argv) {
143 if(disorder_scratch(c, argv[0])) exit(EXIT_FAILURE);
144}
145
146static void cf_shutdown(disorder_client *c,
147 char attribute((unused)) **argv) {
148 if(disorder_shutdown(c)) exit(EXIT_FAILURE);
149}
150
151static void cf_reconfigure(disorder_client *c,
152 char attribute((unused)) **argv) {
c00fce3a
RK
153 /* Re-check configuration for server */
154 if(config_read(1)) fatal(0, "cannot read configuration");
460b9539 155 if(disorder_reconfigure(c)) exit(EXIT_FAILURE);
156}
157
158static void cf_rescan(disorder_client *c, char attribute((unused)) **argv) {
159 if(disorder_rescan(c)) exit(EXIT_FAILURE);
160}
161
162static void cf_somequeue(disorder_client *c,
163 int (*fn)(disorder_client *c,
164 struct queue_entry **qp)) {
165 struct queue_entry *q;
166
167 if(fn(c, &q)) exit(EXIT_FAILURE);
168 while(q) {
169 print_queue_entry(q);
170 q = q->next;
171 }
172}
173
174static void cf_recent(disorder_client *c, char attribute((unused)) **argv) {
175 cf_somequeue(c, disorder_recent);
176}
177
178static void cf_queue(disorder_client *c, char attribute((unused)) **argv) {
179 cf_somequeue(c, disorder_queue);
180}
181
182static void cf_quack(disorder_client attribute((unused)) *c,
183 char attribute((unused)) **argv) {
184 xprintf("\n"
185 " .------------------.\n"
186 " | Naath is a babe! |\n"
187 " `---------+--------'\n"
188 " \\\n"
189 " >0\n"
190 " (<)'\n"
191 "~~~~~~~~~~~~~~~~~~~~~~\n"
192 "\n");
193}
194
195static void cf_somelist(disorder_client *c, char **argv,
196 int (*fn)(disorder_client *c,
197 const char *arg, const char *re,
198 char ***vecp, int *nvecp)) {
199 char **vec;
200 const char *re;
201
202 if(argv[1])
203 re = xstrdup(argv[1] + 1);
204 else
205 re = 0;
206 if(fn(c, argv[0], re, &vec, 0)) exit(EXIT_FAILURE);
207 while(*vec)
208 xprintf("%s\n", nullcheck(utf82mb(*vec++)));
209}
210
211static int isarg_regexp(const char *s) {
212 return s[0] == '~';
213}
214
215static void cf_dirs(disorder_client *c,
216 char **argv) {
217 cf_somelist(c, argv, disorder_directories);
218}
219
220static void cf_files(disorder_client *c, char **argv) {
221 cf_somelist(c, argv, disorder_files);
222}
223
224static void cf_allfiles(disorder_client *c, char **argv) {
225 cf_somelist(c, argv, disorder_allfiles);
226}
227
228static void cf_get(disorder_client *c, char **argv) {
229 char *value;
230
231 if(disorder_get(c, argv[0], argv[1], &value)) exit(EXIT_FAILURE);
232 xprintf("%s\n", nullcheck(utf82mb(value)));
233}
234
235static void cf_length(disorder_client *c, char **argv) {
236 long length;
237
238 if(disorder_length(c, argv[0], &length)) exit(EXIT_FAILURE);
239 xprintf("%ld\n", length);
240}
241
242static void cf_set(disorder_client *c, char **argv) {
243 if(disorder_set(c, argv[0], argv[1], argv[2])) exit(EXIT_FAILURE);
244}
245
246static void cf_unset(disorder_client *c, char **argv) {
247 if(disorder_unset(c, argv[0], argv[1])) exit(EXIT_FAILURE);
248}
249
250static void cf_prefs(disorder_client *c, char **argv) {
251 struct kvp *k;
252
253 if(disorder_prefs(c, argv[0], &k)) exit(EXIT_FAILURE);
254 for(; k; k = k->next)
255 xprintf("%s = %s\n",
256 nullcheck(utf82mb(k->name)), nullcheck(utf82mb(k->value)));
257}
258
259static void cf_search(disorder_client *c, char **argv) {
260 char **results;
261 int nresults, n;
262
263 if(disorder_search(c, *argv, &results, &nresults)) exit(EXIT_FAILURE);
264 for(n = 0; n < nresults; ++n)
265 xprintf("%s\n", nullcheck(utf82mb(results[n])));
266}
267
268static void cf_random_disable(disorder_client *c,
269 char attribute((unused)) **argv) {
270 if(disorder_random_disable(c)) exit(EXIT_FAILURE);
271}
272
273static void cf_random_enable(disorder_client *c,
274 char attribute((unused)) **argv) {
275 if(disorder_random_enable(c)) exit(EXIT_FAILURE);
276}
277
278static void cf_stats(disorder_client *c,
279 char attribute((unused)) **argv) {
280 char **vec;
281
282 if(disorder_stats(c, &vec, 0)) exit(EXIT_FAILURE);
283 while(*vec)
284 xprintf("%s\n", nullcheck(utf82mb(*vec++)));
285}
286
287static void cf_get_volume(disorder_client *c,
288 char attribute((unused)) **argv) {
289 int l, r;
290
291 if(disorder_get_volume(c, &l, &r)) exit(EXIT_FAILURE);
292 xprintf("%d %d\n", l, r);
293}
294
295static void cf_set_volume(disorder_client *c,
296 char **argv) {
297 if(disorder_set_volume(c, atoi(argv[0]), atoi(argv[1]))) exit(EXIT_FAILURE);
298}
299
300static void cf_become(disorder_client *c,
301 char **argv) {
302 if(disorder_become(c, argv[0])) exit(EXIT_FAILURE);
303}
304
305static void cf_log(disorder_client *c,
306 char attribute((unused)) **argv) {
307 if(disorder_log(c, sink_stdio("stdout", stdout))) exit(EXIT_FAILURE);
308}
309
310static void cf_move(disorder_client *c,
311 char **argv) {
312 long n;
313 int e;
314
315 if((e = xstrtol(&n, argv[1], 0, 10)))
316 fatal(e, "cannot convert '%s'", argv[1]);
317 if(n > INT_MAX || n < INT_MIN)
318 fatal(e, "%ld out of range", n);
319 if(disorder_move(c, argv[0], (int)n)) exit(EXIT_FAILURE);
320}
321
322static void cf_part(disorder_client *c,
323 char **argv) {
324 char *s;
325
326 if(disorder_part(c, &s, argv[0], argv[1], argv[2])) exit(EXIT_FAILURE);
327 xprintf("%s\n", nullcheck(utf82mb(s)));
328}
329
330static int isarg_filename(const char *s) {
331 return s[0] == '/';
332}
333
334static void cf_authorize(disorder_client attribute((unused)) *c,
335 char **argv) {
336 if(!authorize(argv[0]))
337 auto_reconfigure = 1;
338}
339
340static void cf_resolve(disorder_client *c,
341 char **argv) {
342 char *track;
343
344 if(disorder_resolve(c, &track, argv[0])) exit(EXIT_FAILURE);
345 xprintf("%s\n", nullcheck(utf82mb(track)));
346}
347
348static void cf_pause(disorder_client *c,
349 char attribute((unused)) **argv) {
350 if(disorder_pause(c)) exit(EXIT_FAILURE);
351}
352
353static void cf_resume(disorder_client *c,
354 char attribute((unused)) **argv) {
355 if(disorder_resume(c)) exit(EXIT_FAILURE);
356}
357
358static void cf_tags(disorder_client *c,
359 char attribute((unused)) **argv) {
360 char **vec;
361
362 if(disorder_tags(c, &vec, 0)) exit(EXIT_FAILURE);
363 while(*vec)
364 xprintf("%s\n", nullcheck(utf82mb(*vec++)));
365}
366
367static void cf_get_global(disorder_client *c, char **argv) {
368 char *value;
369
370 if(disorder_get_global(c, argv[0], &value)) exit(EXIT_FAILURE);
371 xprintf("%s\n", nullcheck(utf82mb(value)));
372}
373
374static void cf_set_global(disorder_client *c, char **argv) {
375 if(disorder_set_global(c, argv[0], argv[1])) exit(EXIT_FAILURE);
376}
377
378static void cf_unset_global(disorder_client *c, char **argv) {
379 if(disorder_unset_global(c, argv[0])) exit(EXIT_FAILURE);
380}
381
2a10b70b
RK
382static int isarg_integer(const char *s) {
383 if(!*s) return 0;
384 while(*s) {
385 if(!isdigit((unsigned char)*s))
386 return 0;
387 ++s;
388 }
389 return 1;
390}
391
392static void cf_new(disorder_client *c,
393 char **argv) {
394 char **vec;
395
396 if(disorder_new_tracks(c, &vec, 0, argv[0] ? atoi(argv[0]) : 0))
397 exit(EXIT_FAILURE);
398 while(*vec)
399 xprintf("%s\n", nullcheck(utf82mb(*vec++)));
400}
401
ca831831
RK
402static void cf_rtp_address(disorder_client *c,
403 char attribute((unused)) **argv) {
404 char *address, *port;
405
406 if(disorder_rtp_address(c, &address, &port)) exit(EXIT_FAILURE);
407 xprintf("address: %s\nport: %s\n", address, port);
408}
409
460b9539 410static const struct command {
411 const char *name;
412 int min, max;
413 void (*fn)(disorder_client *c, char **);
414 int (*isarg)(const char *);
415 const char *argstr, *desc;
416} commands[] = {
417 { "allfiles", 1, 2, cf_allfiles, isarg_regexp, "DIR [~REGEXP]",
418 "List all files and directories in DIR" },
419 { "authorize", 1, 1, cf_authorize, 0, "USER",
420 "Authorize USER to connect to the server" },
421 { "become", 1, 1, cf_become, 0, "USER",
422 "Become user USER" },
423 { "dirs", 1, 2, cf_dirs, isarg_regexp, "DIR [~REGEXP]",
424 "List directories in DIR" },
425 { "disable", 0, 0, cf_disable, 0, "",
426 "Disable play" },
427 { "disable-random", 0, 0, cf_random_disable, 0, "",
428 "Disable random play" },
429 { "enable", 0, 0, cf_enable, 0, "",
430 "Enable play" },
431 { "enable-random", 0, 0, cf_random_enable, 0, "",
432 "Enable random play" },
433 { "files", 1, 2, cf_files, isarg_regexp, "DIR [~REGEXP]",
434 "List files in DIR" },
435 { "get", 2, 2, cf_get, 0, "TRACK NAME",
436 "Get a preference value" },
437 { "get-global", 1, 1, cf_get_global, 0, "NAME",
438 "Get a global preference value" },
439 { "get-volume", 0, 0, cf_get_volume, 0, "",
440 "Get the current volume" },
441 { "length", 1, 1, cf_length, 0, "TRACK",
442 "Get the length of TRACK in seconds" },
443 { "log", 0, 0, cf_log, 0, "",
444 "Copy event log to stdout" },
445 { "move", 2, 2, cf_move, 0, "TRACK DELTA",
446 "Move a track in the queue" },
2a10b70b
RK
447 { "new", 0, 1, cf_new, isarg_integer, "[MAX]",
448 "Get the most recently added MAX tracks" },
460b9539 449 { "part", 3, 3, cf_part, 0, "TRACK CONTEXT PART",
450 "Find a track name part" },
451 { "pause", 0, 0, cf_pause, 0, "",
452 "Pause the currently playing track" },
453 { "play", 1, INT_MAX, cf_play, isarg_filename, "TRACKS...",
454 "Add TRACKS to the end of the queue" },
455 { "playing", 0, 0, cf_playing, 0, "",
456 "Report the playing track" },
457 { "prefs", 1, 1, cf_prefs, 0, "TRACK",
458 "Display all the preferences for TRACK" },
459 { "quack", 0, 0, cf_quack, 0, 0, 0 },
460 { "queue", 0, 0, cf_queue, 0, "",
461 "Display the current queue" },
462 { "random-disable", 0, 0, cf_random_disable, 0, "",
463 "Disable random play" },
464 { "random-enable", 0, 0, cf_random_enable, 0, "",
465 "Enable random play" },
466 { "recent", 0, 0, cf_recent, 0, "",
467 "Display recently played track" },
468 { "reconfigure", 0, 0, cf_reconfigure, 0, "",
469 "Reconfigure the daemon" },
470 { "remove", 1, 1, cf_remove, 0, "TRACK",
471 "Remove a track from the queue" },
472 { "rescan", 0, 0, cf_rescan, 0, "",
473 "Rescan for new tracks" },
474 { "resolve", 1, 1, cf_resolve, 0, "TRACK",
475 "Resolve alias for TRACK" },
476 { "resume", 0, 0, cf_resume, 0, "",
477 "Resume after a pause" },
ca831831
RK
478 { "rtp-address", 0, 0, cf_rtp_address, 0, "",
479 "Report server's broadcast address" },
460b9539 480 { "scratch", 0, 0, cf_scratch, 0, "",
481 "Scratch the currently playing track" },
482 { "scratch-id", 1, 1, cf_scratch, 0, "ID",
483 "Scratch the currently playing track" },
484 { "search", 1, 1, cf_search, 0, "WORDS",
485 "Display tracks matching all the words" },
486 { "set", 3, 3, cf_set, 0, "TRACK NAME VALUE",
487 "Set a preference value" },
488 { "set-global", 2, 2, cf_set_global, 0, "NAME VALUE",
489 "Set a global preference value" },
490 { "set-volume", 2, 2, cf_set_volume, 0, "LEFT RIGHT",
491 "Set the volume" },
492 { "shutdown", 0, 0, cf_shutdown, 0, "",
493 "Shut down the daemon" },
494 { "stats", 0, 0, cf_stats, 0, "",
495 "Display server statistics" },
496 { "tags", 0, 0, cf_tags, 0, "",
497 "List known tags" },
498 { "unset", 2, 2, cf_unset, 0, "TRACK NAME",
499 "Unset a preference" },
500 { "unset-global", 1, 1, cf_unset_global, 0, "NAME",
501 "Unset a global preference" },
502 { "version", 0, 0, cf_version, 0, "",
503 "Display the server version" },
504};
505
506static void help_commands(void) {
507 unsigned n, max = 0, l;
508
509 xprintf("Command summary:\n");
510 for(n = 0; n < sizeof commands / sizeof *commands; ++n) {
511 if(!commands[n].desc) continue;
512 l = strlen(commands[n].name);
513 if(*commands[n].argstr)
514 l += strlen(commands[n].argstr) + 1;
515 if(l > max)
516 max = l;
517 }
518 for(n = 0; n < sizeof commands / sizeof *commands; ++n) {
519 if(!commands[n].desc) continue;
520 l = strlen(commands[n].name);
521 if(*commands[n].argstr)
522 l += strlen(commands[n].argstr) + 1;
523 xprintf(" %s%s%s%*s %s\n", commands[n].name,
524 *commands[n].argstr ? " " : "",
525 commands[n].argstr,
526 max - l, "",
527 commands[n].desc);
528 }
529 xfclose(stdout);
530 exit(0);
531}
532
533int main(int argc, char **argv) {
534 int n, i, j;
535 disorder_client *c = 0;
460b9539 536 int status = 0;
537 struct vector args;
538
320598d4 539 mem_init();
fe8f8518
RK
540 /* garbage-collect PCRE's memory */
541 pcre_malloc = xmalloc;
542 pcre_free = xfree;
460b9539 543 if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
544 while((n = getopt_long(argc, argv, "hVc:dHL", options, 0)) >= 0) {
545 switch(n) {
546 case 'h': help();
547 case 'H': help_commands();
548 case 'V': version();
549 case 'c': configfile = optarg; break;
550 case 'd': debugging = 1; break;
551 default: fatal(0, "invalid option");
552 }
553 }
c00fce3a 554 if(config_read(0)) fatal(0, "cannot read configuration");
460b9539 555 if(!(c = disorder_new(1))) exit(EXIT_FAILURE);
460b9539 556 if(disorder_connect(c)) exit(EXIT_FAILURE);
557 n = optind;
558 /* accumulate command args */
559 while(n < argc) {
560 if((i = TABLE_FIND(commands, struct command, name, argv[n])) < 0)
561 fatal(0, "unknown command '%s'", argv[n]);
562 if(n + commands[i].min >= argc)
563 fatal(0, "missing arguments to '%s'", argv[n]);
564 n++;
565 vector_init(&args);
566 for(j = 0; j < commands[i].min; ++j)
567 vector_append(&args, nullcheck(mb2utf8(argv[n + j])));
568 for(; j < commands[i].max
569 && n + j < argc
570 && commands[i].isarg(argv[n + j]); ++j)
571 vector_append(&args, nullcheck(mb2utf8(argv[n + j])));
572 vector_terminate(&args);
573 commands[i].fn(c, args.vec);
574 n += j;
575 }
576 if(auto_reconfigure) {
577 assert(c != 0);
578 if(disorder_reconfigure(c)) exit(EXIT_FAILURE);
579 }
580 if(c && disorder_close(c)) exit(EXIT_FAILURE);
581 if(fclose(stdout) < 0) fatal(errno, "error closing stdout");
582 return status;
583}
584
585/*
586Local Variables:
587c-basic-offset:2
588comment-column:40
589End:
590*/